/* =========================================================================
   FILE: styles.css (Converter)
   PURPOSE: Bloodweb-themed (light/dark via --bw-* tokens)
   AUTHOR: Jack Ewers / bloodweb.net
   LAST UPDATED: 2025-08-31
   ========================================================================= */

/* Base / Reset (keep layout the same) */
::-webkit-scrollbar {
  width: 0;
}
html, body {
  margin: 0; padding: 0;
  font: var(--bw-font);
  color: var(--bw-text);
  background: var(--bw-bg);
  height: 100%;
  overflow-x: hidden;
}

/* ================= Header ================= */
.app-header {
  background: 
    radial-gradient(circle at 20% 20%, rgba(255,255,255,0.1) 1px, transparent 1px),
    radial-gradient(circle at 80% 80%, rgba(255,255,255,0.08) 1px, transparent 1px),
    radial-gradient(circle at 40% 40%, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #2563eb 100%);
  background-size: 30px 30px, 25px 25px, 20px 20px, 100% 100%;
  background-position: 0 0, 15px 15px, 5px 5px, 0 0;
  color: white;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 4px 20px rgba(0, 0, 0, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.app-header::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    rgba(255, 255, 255, 0.1), 
    transparent);
  animation: shimmer 8s infinite;
}

.app-header::after {
  display: none;
}

@keyframes shimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

.header-title-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: relative;
  z-index: 2;
}

.app-header h1 {
  font-size: 2.5em;
  font-weight: 700;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  letter-spacing: 1px;
  margin: 0;
  color: white;
}

.title-subtitle {
  font-size: 0.9em;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.8;
  color: rgba(255, 255, 255, 0.9);
}

/* Toggle Buttons */
button.toggle{
  all: unset;
  display: inline-flex; 
  align-items: center; 
  justify-content: center;
  width: 2.5em; 
  height: 2.5em; 
  font-size: 1.2em;
  cursor: pointer; 
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.3s ease;
  position: relative;
  z-index: 3;
}

button.toggle:hover { 
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.3);
}

button.toggle:active {
  transform: translateY(0);
}

#toggle-settings:hover, #toggle-nav:hover { 
  background: rgba(255, 255, 255, 0.2);
}

/* ================= Layout ================= */
.app-container {
  position: relative;
  width: 100%;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 280px;
  height: 100dvh;
  background: 
    radial-gradient(circle at 20% 30%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
    linear-gradient(180deg, 
      rgba(15, 15, 15, 0.95) 0%, 
      rgba(30, 30, 40, 0.95) 50%, 
      rgba(20, 20, 30, 0.95) 100%),
    var(--bw-surface);
  backdrop-filter: blur(10px);
  color: var(--bw-text);
  padding: 1.5rem 0 1rem 0;
  box-sizing: border-box;
  overflow-y: auto;
  overflow-x: hidden;
  transition: transform .3s ease, opacity .3s ease;
  z-index: 10; 
  position: fixed; 
  top: 0; 
  bottom: 0; 
  left: 0;
  border-right: 2px solid var(--bw-nav-border);
  box-shadow: 
    8px 0 32px rgba(0, 0, 0, 0.5),
    4px 0 16px var(--bw-nav-border),
    inset -1px 0 0 var(--bw-nav-border),
    inset 0 0 100px var(--bw-nav-hover);
}

.sidebar::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: 
    radial-gradient(circle at 30% 40%, rgba(124, 58, 237, 0.1) 0%, transparent 30%),
    radial-gradient(circle at 70% 60%, rgba(59, 130, 246, 0.08) 0%, transparent 40%);
  animation: subtlePulse 8s ease-in-out infinite;
  pointer-events: none;
}

.sidebar::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 3px; height: 100%;
  background: linear-gradient(180deg, 
    rgba(124, 58, 237, 0.8), 
    rgba(124, 58, 237, 0.3), 
    rgba(59, 130, 246, 0.4),
    rgba(124, 58, 237, 0.3),
    rgba(124, 58, 237, 0.8));
  box-shadow: 
    0 0 10px rgba(124, 58, 237, 0.5),
    inset 0 0 5px rgba(255, 255, 255, 0.2);
}

@keyframes subtlePulse {
  0%, 100% { 
    opacity: 0.6; 
    transform: scale(1) rotate(0deg); 
  }
  50% { 
    opacity: 0.8; 
    transform: scale(1.05) rotate(1deg); 
  }
}

.sidebar h1 {
  margin: 0;
  font-size: 1.1rem;
  display: flex; align-items: center; gap: .5rem;
  color: var(--bw-text);
  text-shadow: 
    0 2px 4px rgba(0,0,0,0.6),
    0 0 20px rgba(124, 58, 237, 0.3);
  position: relative;
  z-index: 2;
  flex: 1;
  text-align: center;
}

.sidebar-header-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 1rem 1.25rem 1rem;
  border-bottom: 1px solid var(--bw-line);
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 2;
}
.sidebar-home-btn,
.sidebar-palette-btn {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  color: var(--bw-subtle);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--bw-line);
  transition: all 0.2s;
  font-size: 0.9rem;
  flex-shrink: 0;
}
.sidebar-home-btn:hover,
.sidebar-palette-btn:hover {
  color: var(--bw-text);
  background: rgba(124,58,237,0.15);
  border-color: rgba(124,58,237,0.4);
}

/* Remove emoji icon from sidebar h1 since we now have the header-row buttons */
.sidebar h1::before {
  display: none;
}

@keyframes iconGlow {
  0% { 
    filter: drop-shadow(0 0 8px rgba(124, 58, 237, 0.6));
  }
  100% { 
    filter: drop-shadow(0 0 12px rgba(124, 58, 237, 0.8));
  }
}

.sidebar.hidden { transform: translateX(-100%); opacity: 0; pointer-events: none; }

/* Enhanced Sidebar Scrollbar */
.sidebar::-webkit-scrollbar {
  width: 8px;
}

.sidebar::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}

.sidebar::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, 
    var(--bw-nav-border),
    var(--bw-nav-hover));
  border-radius: 4px;
  box-shadow: inset 0 0 3px var(--bw-line);
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, 
    var(--bw-nav-border),
    var(--bw-nav-active));
}

/* Mobile Overlay Backdrop */
@media (max-width: 768px) {
  body:not(.sidebar-hidden)::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 5;
    backdrop-filter: blur(2px);
  }
  
  .sidebar {
    z-index: 1000;
  }
}

/* Navigation Items Container */
#nav-items {
  list-style: none;
  padding: 0 0 2rem 0; /* Add bottom padding for scrolling */
  margin: 0;
  position: relative;
  z-index: 2;
}

#nav-items::before {
  content: '';
  position: absolute;
  width:100%;
  top: -10px; left: 0; right: 0; bottom: -10px;
  background: 
    radial-gradient(ellipse at top, var(--bw-nav-hover) 0%, transparent 70%),
    radial-gradient(ellipse at bottom, var(--bw-muted-bg) 0%, transparent 70%);
  /* border-radius: 15px; */
  /* border: 1px solid var(--bw-line); */
  box-shadow: 
    inset 0 1px 0 var(--bw-line),
    0 2px 10px var(--bw-nav-hover);
  z-index: -1;
  backdrop-filter: blur(5px);
}

/* Category Headers */
.nav-category-header {
  margin: 1.5rem 0 0.5rem 0;
  padding: 0;
  list-style: none;
}

.nav-category-header:first-child {
  margin-top: 0;
}

.category-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 1.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--bw-accent);
  background: linear-gradient(90deg, 
    var(--bw-nav-hover), 
    var(--bw-muted-bg));
  border: none;
  border-top: 1px solid var(--bw-nav-border);
  border-bottom: 1px solid var(--bw-line);
  position: relative;
  cursor: pointer;
  transition: all 0.2s ease;
}

.category-toggle:hover {
  background: linear-gradient(90deg, 
    var(--bw-nav-active), 
    var(--bw-nav-hover));
  color: var(--bw-accent);
}

.category-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.dropdown-arrow {
  font-size: 0.8rem;
  transition: transform 0.2s ease;
  color: var(--bw-subtle);
}

.dropdown-arrow.expanded {
  transform: rotate(180deg);
}

.category-toggle::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  height: 1px;
  width: 60%;
  background: linear-gradient(90deg, 
    var(--bw-nav-border), 
    transparent);
}

.category-icon {
  font-size: 1.1em;
  filter: drop-shadow(0 1px 2px rgba(0,0,0,0.3));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.2em;
}

.category-name {
  font-weight: 800;
  text-shadow: 
    0 1px 2px rgba(0,0,0,0.5),
    0 0 8px rgba(0,0,0,0.3);
  -webkit-text-stroke: 0.5px rgba(255,255,255,0.15);
}

/* Category Items Container */
.nav-category-items {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.category-items-container {
  padding: 0.5rem 0;
}

/* Sub-tab Header Styles */
.nav-subtab-header {
  margin: 8px 0 4px 0;
  padding: 0 1rem;
}

.subtab-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--bw-subtle);
  background: linear-gradient(90deg, 
    rgba(255, 255, 255, 0.03),
    rgba(255, 255, 255, 0.01));
  border: 1px solid var(--bw-line);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.subtab-toggle:hover {
  background: linear-gradient(90deg, 
    var(--bw-nav-hover),
    rgba(255, 255, 255, 0.02));
  color: var(--bw-text);
  border-color: var(--bw-nav-border);
}

.subtab-icon {
  font-size: 1em;
  margin-right: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.2em;
}

.subtab-name {
  font-weight: 600;
}

.nav-subtab-items {
  padding-left: 0.5rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.nav-subtab-item button {
  padding-left: 24px;
  font-size: 0.9rem;
  background: linear-gradient(135deg, 
    rgba(255, 255, 255, 0.02),
    rgba(255, 255, 255, 0.01));
}

.nav-subtab-item button::before {
  content: "›";
  font-size: 1.4rem;
  opacity: 0.5;
}

.nav-subtab-item button:hover {
  padding-left: 28px;
}

/* Category Items */
.nav-category-item {
  margin: 2px 0;
  padding: 0 1rem;
  list-style: none;
}

.nav-category-item button {
  display: flex; align-items: center; width: 100%;
  padding: 12px 16px; margin: 0; cursor: pointer; text-align: left;
  border: 1px solid var(--bw-line); 
  border-radius: 8px;
  background: linear-gradient(135deg, 
    var(--bw-muted-bg), 
    rgba(255, 255, 255, 0.02));
  color: var(--bw-text);
  font-size: 0.95rem; 
  gap: 8px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  font-weight: 500;
}

.nav-category-item button::before { 
  content: "•"; 
  font-size: 1.2rem; 
  opacity: 0.6;
  color: var(--bw-accent);
  margin-right: 4px;
}

.nav-category-item button::after {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, 
    transparent, 
    var(--bw-nav-hover), 
    transparent);
  transition: left 0.6s ease;
}

.nav-category-item button:hover {
  background: linear-gradient(135deg, 
    var(--bw-nav-active), 
    var(--bw-nav-hover));
  border-color: var(--bw-nav-border);
  transform: translateX(4px);
  box-shadow: 
    -2px 0 8px var(--bw-nav-border),
    inset 1px 0 0 var(--bw-line);
}

.nav-category-item button:hover::after {
  left: 100%;
}

.nav-category-item button.active {
  background: linear-gradient(135deg, 
    var(--bw-nav-active), 
    var(--bw-nav-hover));
  border-color: var(--bw-nav-border);
  color: var(--bw-text);
  font-weight: 600;
  transform: translateX(6px);
  box-shadow: 
    -3px 0 12px var(--bw-nav-border),
    inset 1px 0 0 var(--bw-line);
}

.nav-category-item button.active::before {
  content: "▶";
  color: var(--bw-accent);
  opacity: 1;
}

/* ================= Main Content ================= */
.main-content {
  margin-left: 280px; /* Account for sidebar width */
  width: calc(100% - 280px);
  min-height: 100vh;
  padding: 2rem 2rem 2rem 2rem;
  box-sizing: border-box; 
  background: var(--bw-bg);
  transition: margin-left 0.3s ease, width 0.3s ease;
}

/* Mobile responsive behavior */
@media (max-width: 768px) {
  .main-content {
    margin-left: 0;
    width: 100%;
    transition: filter 0.3s ease;
  }
  
  /* Blur main content when sidebar is visible on mobile */
  body:not(.sidebar-hidden) .main-content {
    filter: blur(3px);
    pointer-events: none;
  }
  
  /* Sidebar should overlay on mobile, not push content */
  .sidebar {
    position: fixed;
    z-index: 1000;
  }
}

/* When sidebar is hidden on desktop, expand main content */
@media (min-width: 769px) {
  body.sidebar-hidden .main-content {
    margin-left: 0;
    width: 100%;
  }
}

.main-header h2 {
  margin: 0 0 1rem 0;
  font-size: 1.75rem;
  color: var(--bw-text);
}

/* Card/Block */
.converter-block {
  background: linear-gradient(145deg, 
    rgba(255, 255, 255, 0.15) 0%,
    rgba(255, 255, 255, 0.1) 50%,
    rgba(255, 255, 255, 0.05) 100%);
  padding: 24px; 
  border-radius: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 
    0 20px 50px rgba(0,0,0,.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  margin-bottom: 24px; 
  max-width: 500px;
  color: var(--bw-text);
  position: relative;
  overflow: hidden;
  transition: all 0.4s ease;
}

.converter-block::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  right: 0; bottom: 0;
  background: linear-gradient(45deg, 
    transparent 30%, 
    rgba(255,255,255,0.1) 50%, 
    transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.converter-block:hover::before {
  opacity: 1;
}

.converter-block:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 25px 60px rgba(0,0,0,.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 0 0 2px rgba(255, 255, 255, 0.3);
}

.converter-block label {
  display: block; margin-top: 20px; margin-bottom: 8px;
  font-weight: 700; 
  color: var(--bw-text);
  font-size: 1.1em;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.converter-block input,
.converter-block select,
.converter-block button {
  width: 100%; padding: 16px 20px; margin-bottom: 12px; font-size: 1rem;
  box-sizing: border-box; border-radius: 15px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.15); 
  color: var(--bw-text);
  transition: all 0.3s ease;
  box-shadow: 
    0 4px 15px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.converter-block input:focus,
.converter-block select:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 
    0 8px 25px rgba(0, 0, 0, 0.3),
    0 0 0 4px rgba(255, 255, 255, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.converter-block input::placeholder {
  color:var(--bw-subtle);
  font-weight: lighter;
}

/* Select option styling - always black text on white background */
.converter-block select option,
.gauge-select option,
.image-converter-block select option,
.resize-method select option,
.input-group select option,
.time-input select option,
.currency-selector select option {
  background: #ffffff !important;
  color: #000000 !important;
}

/* Universal option styling for all selects */
select option {
  background: #ffffff !important;
  color: #000000 !important;
}

/* Primary action buttons inside blocks */
.converter-block button {
  border: 2px solid rgba(255,255,255,.4);
  background: linear-gradient(135deg, 
    #2563eb 0%, #1e40af 50%, #1e3a8a 100%);
  color: #fff; 
  font-weight: 700;
  font-size: 1.1em;
  padding: 18px 24px;
  border-radius: 20px;
  box-shadow: 
    0 8px 25px rgba(37,99,235,.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.converter-block button::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
  transition: left 0.6s ease;
}

.converter-block button:hover::before {
  left: 100%;
}

.converter-block button:hover { 
  transform: translateY(-4px) scale(1.02); 
  filter: brightness(1.15) saturate(1.2);
  box-shadow: 
    0 15px 35px rgba(37,99,235,.6),
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 0 0 6px rgba(255, 255, 255, 0.2);
}

.converter-block button:active {
  transform: translateY(-2px) scale(1.01);
}

.input-row { display: flex; gap: .5rem; }
.input-row input  { flex: 2; }
.input-row select { flex: 1; }

.result-container { margin-top: 1rem; font-size: 1.2rem; color: var(--bw-text); }

/* ================= Footer ================= */
.main-footer {
  margin-top: 2rem; font-size: .9rem; color: var(--bw-subtle);
}

/* ================= Notification ================= */
.app-notification {
  position: fixed; bottom: 20px; right: 20px;
  background: var(--bw-elev); color: var(--bw-text);
  padding: 1rem 1.5rem; border-radius: 10px;
  border: 1px solid var(--bw-line);
  box-shadow: 0 10px 30px rgba(0,0,0,.35);
  font-size: .95rem; z-index: 30;
}

/* ================= Gauger Converter ================= */
.gauge-block { margin-top: 1rem; }
.gauge-block label { display: block; margin-top: .75rem; font-weight: 700; color: var(--bw-text); }
.gauge-block input {
  width: 100%; padding: .6rem .75rem; font-size: 1rem; margin-top: .25rem; box-sizing: border-box;
  border-radius: 8px; border: 1px solid var(--bw-line); background: var(--bw-elev); color: var(--bw-text);
}
.gauge-select {
  width: 100%; font-size: 1.1rem; padding: .6rem .75rem; margin-top: .25rem;
  border-radius: 8px; border: 1px solid var(--bw-line); background: var(--bw-elev); color: var(--bw-text);
}

/* ================= Temp Converter ================= */
.temp-block { margin-top: 1rem; }
.temp-block label { display: block; margin-top: .75rem; font-weight: 700; color: var(--bw-text); }
.temp-block .temp-input {
  width: 100%; font-size: 1rem; padding: .6rem .75rem; margin-top: .25rem; box-sizing: border-box;
  border-radius: 8px; border: 1px solid var(--bw-line); background: var(--bw-elev); color: var(--bw-text);
}

/* ================= Color Name ================= */
.color-block { margin-top: 1rem; }
.color-block label { display: block; margin-top: .5rem; font-weight: 700; color: var(--bw-text); }
.color-block input {
  width: 100%; font-size: 1rem; padding: .6rem .75rem; margin-top: .25rem; box-sizing: border-box;
  border-radius: 8px; border: 1px solid var(--bw-line); background: var(--bw-elev); color: var(--bw-text);
}

.color-preview-row { display: flex; align-items: center; margin-top: 1rem; gap: 1rem; }
.color-preview {
  width: 64px; height: 64px; border-radius: 8px;
  border: 1px solid var(--bw-line);
  background: var(--bw-surface);
}
.color-info p { margin: .2rem 0; font-size: .95rem; color: var(--bw-subtle); }

.input-format-hints {
  margin: 0.5rem 0 1rem 0;
  padding: 8px 12px;
  background: rgba(147, 51, 234, 0.1);
  border: 1px solid rgba(147, 51, 234, 0.2);
  border-radius: 6px;
}

.input-format-hints small {
  color: var(--bw-subtle);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* ================= Image Converter ================= */
.image-converter-block input[type="file"],
.image-converter-block select {
  font-size: 1.05rem; margin-bottom: 10px;
  border-radius: 8px; border: 1px solid var(--bw-line);
  background: var(--bw-elev); color: var(--bw-text);
}

#img-download-link {
  display: inline-block; margin-top: 15px; padding: 8px 12px;
  background: linear-gradient(90deg, var(--bw-accent), var(--bw-accent-2));
  color: #fff; text-decoration: none; border-radius: 8px;
  box-shadow: 0 6px 16px rgba(124,58,237,.28);
  transition: transform var(--bw-fast), filter var(--bw-fast);
}
#img-download-link:hover { transform: translateY(-1px); filter: brightness(1.05); }
#img-download-link.hidden { display: none; }

#quality-wrapper { margin-top: 10px; }
#quality-wrapper.hidden { display: none; }
#img-quality { width: 100%; }

/* ================= Enhanced Image Converter Styles ================= */
.image-converter-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.upload-section {
  border: 2px dashed var(--bw-line);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  background: var(--bw-elev);
  transition: border-color var(--bw-fast);
}

.upload-section:hover {
  border-color: var(--bw-accent);
}

.upload-info {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: var(--bw-text-muted);
}

.conversion-options {
  display: grid;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bw-elev);
  border-radius: 12px;
  border: 1px solid var(--bw-line);
}

.option-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-group label {
  font-weight: 500;
  color: var(--bw-text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.option-group small {
  color: var(--bw-text-muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.resize-controls {
  display: grid;
  gap: 1rem;
  margin-top: 0.5rem;
}

.resize-method select {
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--bw-line);
  background: var(--bw-bg);
  color: var(--bw-text);
}

.resize-input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.resize-input input[type="number"] {
  width: 100px;
  padding: 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--bw-line);
  background: var(--bw-bg);
  color: var(--bw-text);
}

.resize-input input[type="range"] {
  flex: 1;
  min-width: 150px;
}

.preview-section {
  text-align: center;
}

.image-info {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bw-elev);
  border-radius: 8px;
  border: 1px solid var(--bw-line);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 0.75rem;
}

.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem;
  background: var(--bw-bg);
  border-radius: 6px;
}

.info-label {
  font-weight: 500;
  color: var(--bw-text-muted);
}

.info-value {
  font-weight: 600;
  color: var(--bw-text);
}

.download-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.download-btn {
  display: inline-block;
  padding: 12px 24px;
  background: linear-gradient(90deg, var(--bw-accent), var(--bw-accent-2));
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  text-align: center;
  box-shadow: 0 6px 16px rgba(124,58,237,.28);
  transition: all var(--bw-fast);
}

.download-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 8px 20px rgba(124,58,237,.35);
}

.batch-downloads {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--bw-elev);
  border-radius: 12px;
  border: 1px solid var(--bw-line);
}

.batch-downloads h4 {
  margin: 0 0 1rem 0;
  color: var(--bw-text);
  font-size: 1.1rem;
}

.batch-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: var(--bw-bg);
  border-radius: 8px;
  border: 1px solid var(--bw-line);
  gap: 1rem;
}

.batch-item-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.filename {
  font-weight: 500;
  color: var(--bw-text);
}

.size-info {
  font-size: 0.9rem;
  color: var(--bw-text-muted);
}

.batch-download-btn {
  padding: 8px 16px;
  background: var(--bw-accent);
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--bw-fast);
  white-space: nowrap;
}

.batch-download-btn:hover {
  background: var(--bw-accent-2);
  transform: translateY(-1px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .conversion-options {
    padding: 1rem;
  }
  
  .info-grid {
    grid-template-columns: 1fr;
  }
  
  .batch-item {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }
  
  .resize-input {
    flex-direction: column;
    align-items: stretch;
  }
  
  .resize-input input[type="number"] {
    width: 100%;
  }
}

/* ================= File Converter Styles ================= */
.file-converter-block .converter-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.file-converter-block h3 {
  margin: 0 0 1rem 0;
  color: var(--bw-accent);
  border-bottom: 2px solid var(--bw-accent);
  padding-bottom: 0.5rem;
}

.file-converter-block h4 {
  margin: 0 0 0.75rem 0;
  color: var(--bw-text);
  font-size: 1.1rem;
}

.file-converter-block .description {
  margin: 0 0 1rem 0;
  color: var(--bw-text-muted);
  font-style: italic;
}

.file-input-section, .compression-section, .action-section {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Drag and Drop Zone */
.drop-zone {
  border: 2px dashed var(--bw-line);
  border-radius: var(--bw-radius);
  background: var(--bw-elev);
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-zone:hover {
  border-color: var(--bw-accent);
  background: var(--bw-surface);
  transform: translateY(-2px);
}

.drop-zone.drag-over {
  border-color: var(--bw-accent);
  background: linear-gradient(135deg, 
    rgba(124, 58, 237, 0.1), 
    rgba(168, 85, 247, 0.1));
  transform: scale(1.02);
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.2);
}

.drop-zone-content {
  pointer-events: none;
}

.drop-zone-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.6;
  transition: all 0.3s ease;
}

.drop-zone:hover .drop-zone-icon,
.drop-zone.drag-over .drop-zone-icon {
  opacity: 1;
  transform: scale(1.1);
}

.drop-zone-text {
  font-size: 1.1rem;
  color: var(--bw-text);
  margin-bottom: 0.5rem;
}

.browse-btn {
  background: none;
  border: none;
  color: var(--bw-accent);
  text-decoration: underline;
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
  padding: 0;
  pointer-events: all;
}

.browse-btn:hover {
  color: var(--bw-accent-2);
  text-decoration: none;
}

.drop-zone-hint {
  font-size: 0.9rem;
  color: var(--bw-text-muted);
  font-style: italic;
}

.compression-section {
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: var(--bw-radius);
  padding: 1rem;
  margin-top: 0.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.75rem;
}

.form-group label {
  font-weight: 500;
  color: var(--bw-text);
}

.form-group input[type="range"] {
  width: 100%;
  margin: 0.5rem 0;
}

.form-group small {
  color: var(--bw-text-muted);
  font-style: italic;
}

.file-list {
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: var(--bw-radius);
  padding: 1rem;
  max-height: 200px;
  overflow-y: auto;
}

.file-list.hidden {
  display: none;
}

.file-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* ================= Interest Calculator Styles ================= */
.interest-calculator-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.calculator-modes {
  border-bottom: 1px solid var(--bw-line);
}

.mode-tabs {
  display: flex;
  gap: 0;
  background: var(--bw-elev);
  border-radius: 8px 8px 0 0;
  overflow: hidden;
}

.mode-tab {
  flex: 1;
  padding: 1rem;
  border: none;
  background: var(--bw-elev);
  color: var(--bw-text-muted);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--bw-fast);
  border-bottom: 3px solid transparent;
}

.mode-tab:hover {
  background: var(--bw-bg);
  color: var(--bw-text);
}

.mode-tab.active {
  background: var(--bw-bg);
  color: var(--bw-accent);
  border-bottom-color: var(--bw-accent);
}

.calculator-section {
  padding: 1.5rem;
  background: var(--bw-elev);
  border-radius: 0 0 12px 12px;
  border: 1px solid var(--bw-line);
  border-top: none;
}

.input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group label {
  font-weight: 500;
  color: var(--bw-text);
  font-size: 0.95rem;
}

.input-group input[type="number"],
.input-group select {
  padding: 0.75rem;
  border: 1px solid var(--bw-line);
  border-radius: 6px;
  background: var(--bw-bg);
  color: var(--bw-text);
  font-size: 1rem;
  transition: border-color var(--bw-fast);
}

.input-group input[type="number"]:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--bw-accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.input-group small {
  color: var(--bw-text-muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.input-hint {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.85rem;
  color: var(--bw-text-muted);
  font-style: italic;
  opacity: 0.8;
}

.input-group input::placeholder {
  color: var(--bw-text-muted);
  opacity: 0.6;
  font-style: italic;
}

.time-input {
  display: flex;
  gap: 0.5rem;
}

.time-input input {
  flex: 2;
}

.time-input select {
  flex: 1;
}

.calculate-section {
  text-align: center;
}

.calculate-btn {
  padding: 12px 32px;
  background: linear-gradient(90deg, var(--bw-accent), var(--bw-accent-2));
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--bw-fast);
  box-shadow: 0 6px 16px rgba(124,58,237,.28);
}

.calculate-btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 8px 20px rgba(124,58,237,.35);
}

.results-section {
  padding: 2rem;
  background: var(--bw-elev);
  border-radius: 12px;
  border: 1px solid var(--bw-line);
  margin-top: 1rem;
}

.results-header h3 {
  margin: 0 0 1.5rem 0;
  color: var(--bw-text);
  text-align: center;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.result-card {
  padding: 1.5rem;
  background: var(--bw-bg);
  border-radius: 8px;
  border: 1px solid var(--bw-line);
  text-align: center;
  transition: transform var(--bw-fast);
}

.result-card:hover {
  transform: translateY(-2px);
}

.result-card.primary {
  background: linear-gradient(135deg, var(--bw-accent), var(--bw-accent-2));
  color: white;
  border-color: var(--bw-accent);
}

.result-label {
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0.8;
  margin-bottom: 0.5rem;
}

.result-value {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.2;
}

.calculation-breakdown {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--bw-bg);
  border-radius: 8px;
  border: 1px solid var(--bw-line);
}

.calculation-breakdown h4 {
  margin: 0 0 1rem 0;
  color: var(--bw-text);
}

.calculation-breakdown p {
  margin: 0.5rem 0;
  color: var(--bw-text);
  line-height: 1.5;
}

.chart-container {
  margin-top: 2rem;
}

.chart-container h4 {
  margin: 0 0 1rem 0;
  color: var(--bw-text);
  text-align: center;
}

.chart-legend {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--bw-text);
}

.legend-color {
  width: 16px;
  height: 16px;
  border-radius: 3px;
}

.legend-color.contributions {
  background: var(--bw-accent);
}

.legend-color.interest {
  background: var(--bw-accent-2);
}

.chart-bars {
  display: flex;
  justify-content: space-around;
  align-items: flex-end;
  height: 200px;
  padding: 1rem;
  background: var(--bw-bg);
  border-radius: 8px;
  border: 1px solid var(--bw-line);
  gap: 0.5rem;
}

.chart-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  max-width: 80px;
}

.bar-container {
  position: relative;
  width: 100%;
  height: 150px;
  display: flex;
  align-items: flex-end;
}

.bar-interest,
.bar-contributions {
  width: 45%;
  border-radius: 4px 4px 0 0;
  transition: all var(--bw-fast);
}

.bar-contributions {
  background: var(--bw-accent);
  margin-right: 2px;
}

.bar-interest {
  background: var(--bw-accent-2);
}

.bar-label {
  font-size: 0.8rem;
  color: var(--bw-text-muted);
  margin-top: 0.5rem;
  text-align: center;
}

.bar-value {
  font-size: 0.75rem;
  color: var(--bw-text);
  font-weight: 500;
  text-align: center;
  margin-top: 0.25rem;
}

.finance-theory {
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(139, 92, 246, 0.1));
  border-radius: 12px;
  border: 1px solid rgba(124, 58, 237, 0.2);
}

.finance-theory h4 {
  margin: 0 0 1rem 0;
  color: var(--bw-accent);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.finance-theory p {
  margin: 0.75rem 0;
  color: var(--bw-text);
  line-height: 1.6;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .input-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .results-grid {
    grid-template-columns: 1fr;
  }
  
  .mode-tabs {
    flex-direction: column;
  }
  
  .chart-bars {
    height: 150px;
    padding: 0.5rem;
  }
  
  .bar-container {
    height: 100px;
  }
  
  .chart-legend {
    flex-direction: column;
    gap: 0.5rem;
  }
}

.file-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--bw-line);
}

.file-list li:last-child {
  border-bottom: none;
}

.file-name {
  font-weight: 500;
  flex: 1;
  color: var(--bw-text);
}

.file-size, .file-type {
  font-size: 0.85rem;
  color: var(--bw-text-muted);
  margin-left: 0.5rem;
}

.file-stats {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--bw-line);
  font-size: 0.9rem;
  color: var(--bw-text-muted);
}

.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bw-line);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.progress-bar #progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--bw-accent), var(--bw-accent-2));
  transition: width 0.3s ease;
}

#progress-section {
  margin-top: 1rem;
}

#progress-section.hidden {
  display: none;
}

#progress-text {
  font-size: 0.9rem;
  color: var(--bw-text-muted);
}

.download-section {
  background: var(--bw-success-bg, #e8f5e8);
  border: 1px solid var(--bw-success-border, #4caf50);
  border-radius: var(--bw-radius);
  padding: 1rem;
  text-align: center;
}

.download-section.hidden {
  display: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--bw-radius);
  font-family: inherit;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn.primary {
  background: linear-gradient(90deg, var(--bw-accent), var(--bw-accent-2));
  color: white;
}

.btn.primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(124,58,237,0.3);
}

.btn.success {
  background: linear-gradient(90deg, #4caf50, #45a049);
  color: white;
}

.btn.success:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(76,175,80,0.3);
}

.file-details {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--bw-text-muted);
}

.file-info small {
  color: var(--bw-text-muted);
  font-style: italic;
}

/* ================= Universal Unit Converter ================= */
.uc-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--bw-line);
}

.uc-tab {
  background: none;
  border: none;
  padding: 0.6rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--bw-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.uc-tab:hover {
  color: var(--bw-text);
}

.uc-tab--active {
  color: var(--bw-accent);
  border-bottom-color: var(--bw-accent);
}

.uc-panel {
  display: none;
}

.uc-panel--active {
  display: block;
}

.unit-group {
  margin-bottom: 1rem;
}

.unit-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--bw-text);
}

.results-display {
  margin-top: 1.5rem;
  transition: all 0.3s ease;
}

.results-display.hidden {
  display: none;
}

.result-card {
  background: linear-gradient(135deg, var(--bw-surface), var(--bw-elev));
  border: 1px solid var(--bw-accent);
  border-radius: var(--bw-radius);
  padding: 1rem;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.15);
}

.result-card h4 {
  margin: 0 0 1rem 0;
  color: var(--bw-accent);
  font-size: 1.1rem;
}

.result-grid {
  display: grid;
  gap: 0.75rem;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem;
  background: var(--bw-elev);
  border-radius: var(--bw-radius-sm);
  border: 1px solid var(--bw-line);
}

.result-label {
  font-weight: 500;
  color: var(--bw-text-muted);
}

.result-value {
  font-weight: 600;
  color: var(--bw-text);
  text-align: right;
}

.gauge-result .result-value {
  color: var(--bw-accent);
}

/* Color Theory Styles */
.color-theory-content {
  display: grid;
  gap: 0.75rem;
}

.theory-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.75rem;
  background: var(--bw-elev);
  border-radius: var(--bw-radius-sm);
  border: 1px solid var(--bw-line);
}

.theory-label {
  font-weight: 600;
  color: var(--bw-accent);
  font-size: 0.9rem;
}

.theory-value {
  color: var(--bw-text);
  line-height: 1.5;
  font-size: 0.95rem;
}

.button.secondary {
  background: var(--bw-elev);
  color: var(--bw-text);
  border: 1px solid var(--bw-line);
  padding: 0.75rem 1rem;
  border-radius: var(--bw-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.button.secondary:hover {
  background: var(--bw-surface);
  border-color: var(--bw-accent);
  transform: translateY(-1px);
}

/* ================= Compact mode (optional) ================= */
:root.compact-mode .converter-block { padding: .8rem; }
:root.compact-mode .converter-block input,
:root.compact-mode .converter-block select,
:root.compact-mode .converter-block button { padding: .5rem .6rem; }
:root.compact-mode #nav-items button { padding: .45rem .8rem; }

/* ================= Currency Converter Styles ================= */
.currency-converter-block {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.currency-input-section {
  background: var(--bw-elev);
  border-radius: 12px;
  border: 1px solid var(--bw-line);
  padding: 1.5rem;
}

.currency-selectors {
  display: flex;
  align-items: end;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.currency-selector {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.currency-selector label {
  font-weight: 500;
  color: var(--bw-text);
  font-size: 0.9rem;
}

.currency-selector select {
  padding: 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--bw-line);
  background: var(--bw-bg);
  color: var(--bw-text);
  font-size: 1rem;
  width: 100%;
}

.swap-btn {
  background: var(--bw-accent);
  color: white;
  border: none;
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all var(--bw-fast);
  flex-shrink: 0;
  align-self: flex-end;
  margin-bottom: 2px;
}

.swap-btn:hover {
  background: var(--bw-accent-2);
  transform: rotate(180deg);
}

.currency-results {
  background: var(--bw-elev);
  border-radius: 12px;
  border: 1px solid var(--bw-line);
  padding: 1.5rem;
}

.conversion-result {
  text-align: center;
}

.result-amount {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--bw-text);
  margin-bottom: 0.5rem;
}

.exchange-rate {
  font-size: 1rem;
  color: var(--bw-text-muted);
  margin-bottom: 0.75rem;
}

.rate-info {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
}

.rate-info small {
  color: var(--bw-text-muted);
  font-size: 0.85rem;
}

.cash-breakdown {
  background: var(--bw-elev);
  border-radius: 12px;
  border: 1px solid var(--bw-line);
  padding: 1.5rem;
}

.cash-breakdown h4 {
  margin: 0 0 0.5rem 0;
  color: var(--bw-text);
  font-size: 1.1rem;
}

.breakdown-intro {
  color: var(--bw-text-muted);
  margin: 0 0 1rem 0;
  font-size: 0.95rem;
}

.denomination-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.denomination-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--bw-bg);
  border-radius: 8px;
  border: 1px solid var(--bw-line);
  transition: all var(--bw-fast);
}

.denomination-item:hover {
  border-color: var(--bw-accent);
  transform: translateY(-1px);
}

.denomination-item.note {
  border-left: 3px solid #4ade80;
}

.denomination-item.coin {
  border-left: 3px solid #fbbf24;
}

.denom-icon {
  font-size: 1.1rem;
}

.denom-count {
  font-weight: 600;
  color: var(--bw-text);
  min-width: 30px;
}

.denom-value {
  font-weight: 500;
  color: var(--bw-accent);
}

.breakdown-note {
  text-align: center;
  margin-top: 1rem;
}

.breakdown-note small {
  color: var(--bw-text-muted);
  font-size: 0.8rem;
  font-style: italic;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .currency-selectors {
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }
  
  .currency-selector {
    min-width: unset;
  }
  
  .swap-btn {
    align-self: center;
    margin: 0.5rem 0;
  }
  
  .denomination-list {
    grid-template-columns: 1fr;
  }
  
  .currency-input-section,
  .currency-results,
  .cash-breakdown {
    padding: 1rem;
  }
}

@media (max-width: 480px) {
  .currency-selectors {
    gap: 0.75rem;
  }
  
  .currency-selector select {
    padding: 0.6rem;
    font-size: 0.95rem;
  }
  
  .swap-btn {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }
}

/* ================= Settings Control Classes ================= */
.settings-hidden {
  display: none !important;
}

/* ================= Header Responsive Styles ================= */
@media (max-width: 768px) {
  .app-header {
    padding: 15px 20px;
    flex-wrap: nowrap;
  }
  
  .app-header h1 {
    font-size: 1.8em;
    flex: 1;
    min-width: 0;
  }
  
  .title-subtitle {
    font-size: 0.8em;
    letter-spacing: 1px;
  }
  
  button.toggle {
    width: 2.2em;
    height: 2.2em;
    font-size: 1.1em;
    flex-shrink: 0;
  }
}

@media (max-width: 480px) {
  .app-header {
    padding: 12px 15px;
  }
  
  .app-header h1 {
    font-size: 1.5em;
  }
  
  .title-subtitle {
    font-size: 0.75em;
    letter-spacing: 0.5px;
  }
  
  button.toggle {
    width: 2em;
    height: 2em;
    font-size: 1em;
  }
}

@media (max-width: 360px) {
  .app-header {
    padding: 10px 12px;
  }
  
  .app-header h1 {
    font-size: 1.3em;
  }
  
  .title-subtitle {
    font-size: 0.7em;
    letter-spacing: 0.5px;
  }
  
  button.toggle {
    width: 1.8em;
    height: 1.8em;
    font-size: 0.9em;
  }
}

/* ================= Request Converter Button ================= */
.nav-request-item {
  margin-top: 1.5rem !important;
  padding: 0 1rem;
  border-top: 1px solid rgba(124, 58, 237, 0.3);
  padding-top: 1rem;
}

.request-converter-btn {
  background: linear-gradient(135deg, 
    rgba(34, 197, 94, 0.2), 
    rgba(16, 185, 129, 0.1)) !important;
  border-color: rgba(34, 197, 94, 0.4) !important;
  color: rgba(34, 197, 94, 0.9) !important;
  font-weight: 600 !important;
}

.request-converter-btn::before {
  content: "💡" !important;
  color: rgba(34, 197, 94, 1) !important;
  opacity: 1 !important;
}

.request-converter-btn:hover {
  background: linear-gradient(135deg, 
    rgba(34, 197, 94, 0.3), 
    rgba(16, 185, 129, 0.2)) !important;
  border-color: rgba(34, 197, 94, 0.6) !important;
  color: rgba(34, 197, 94, 1) !important;
  transform: translateX(4px) !important;
  box-shadow: 
    -2px 0 8px rgba(34, 197, 94, 0.3),
    inset 1px 0 0 rgba(255, 255, 255, 0.1) !important;
}

/* ================= Converter Request Modal ================= */
.converter-request-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.converter-request-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
}

.converter-request-content {
  position: relative;
  width: 90vw;
  max-width: 500px;
  max-height: 85vh;
  background: var(--bw-surface, #1a1625);
  border-radius: 16px;
  border: 1px solid rgba(124, 58, 237, 0.3);
  box-shadow: 
    0 25px 50px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.1);
  overflow: hidden;
  animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: scale(0.9) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.converter-request-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  background: linear-gradient(135deg, 
    rgba(124, 58, 237, 0.1), 
    rgba(168, 85, 247, 0.05));
  border-bottom: 1px solid rgba(124, 58, 237, 0.2);
}

.converter-request-header h2 {
  margin: 0;
  color: var(--bw-text, #e5e5e5);
  font-size: 1.4rem;
  font-weight: 600;
}

.converter-request-close {
  background: none;
  border: none;
  color: var(--bw-text-muted, #999);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.converter-request-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--bw-text, #e5e5e5);
}

.converter-request-form {
  padding: 2rem;
  overflow-y: auto;
  max-height: calc(85vh - 80px);
}

.converter-request-form .form-group {
  margin-bottom: 1.5rem;
}

.converter-request-form label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--bw-text, #e5e5e5);
  font-size: 0.95rem;
}

.converter-request-form input,
.converter-request-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--bw-text, #e5e5e5);
  font-size: 1rem;
  font-family: inherit;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.converter-request-form input:focus,
.converter-request-form textarea:focus {
  outline: none;
  border-color: rgba(124, 58, 237, 0.5);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.converter-request-form textarea {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

.converter-request-form input[readonly] {
  background: rgba(124, 58, 237, 0.1);
  border-color: rgba(124, 58, 237, 0.3);
  color: rgba(124, 58, 237, 0.9);
  cursor: not-allowed;
}

.form-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.converter-request-submit {
  background: linear-gradient(90deg, 
    rgba(34, 197, 94, 0.9), 
    rgba(16, 185, 129, 0.9));
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 6px 16px rgba(34, 197, 94, 0.3);
}

.converter-request-submit:hover:not(:disabled) {
  transform: translateY(-2px);
  filter: brightness(1.1);
  box-shadow: 0 8px 20px rgba(34, 197, 94, 0.4);
}

.converter-request-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  filter: none;
}

.converter-request-cancel {
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--bw-text-muted, #999);
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.converter-request-cancel:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--bw-text, #e5e5e5);
  border-color: rgba(255, 255, 255, 0.3);
}

.request-status {
  font-size: 0.9rem;
  font-weight: 500;
  margin-left: auto;
}

/* Mobile responsiveness for modal */
@media (max-width: 768px) {
  .converter-request-content {
    width: 95vw;
    margin: 1rem;
  }
  
  .converter-request-header {
    padding: 1rem 1.5rem;
  }
  
  .converter-request-form {
    padding: 1.5rem;
  }
  
  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }
  
  .request-status {
    margin-left: 0;
    text-align: center;
  }
}

/* ================= Light Mode Theme Overrides ================= */
:root.theme-light {
  /* Update navigation item text stroke for light mode */
  .category-name {
    -webkit-text-stroke: 0.5px rgba(0,0,0,0.2);
    text-shadow: 
      0 1px 2px rgba(255,255,255,0.8),
      0 0 8px rgba(255,255,255,0.5);
  }
  
  /* Adjust navigation button gradients for light mode */
  .nav-category-item button {
    background: linear-gradient(135deg, 
      rgba(0, 0, 0, 0.03), 
      rgba(0, 0, 0, 0.01));
  }
  
  .nav-category-item button:hover {
    background: linear-gradient(135deg, 
      var(--bw-nav-active), 
      var(--bw-nav-hover));
    box-shadow: 
      -2px 0 8px var(--bw-nav-border),
      inset 1px 0 0 rgba(0, 0, 0, 0.1);
  }
  
  .nav-category-item button.active {
    background: linear-gradient(135deg, 
      var(--bw-nav-active), 
      var(--bw-nav-hover));
    box-shadow: 
      -3px 0 12px var(--bw-nav-border),
      inset 1px 0 0 rgba(0, 0, 0, 0.15);
  }
  
  /* Light mode sidebar adjustments */
  .sidebar {
    background: 
      radial-gradient(circle at 20% 30%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
      radial-gradient(circle at 80% 70%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
      linear-gradient(180deg, 
        rgba(255, 255, 255, 0.98) 0%, 
        rgba(248, 248, 252, 0.98) 50%, 
        rgba(245, 245, 250, 0.98) 100%),
      var(--bw-surface);
    box-shadow: 
      8px 0 32px rgba(0, 0, 0, 0.1),
      4px 0 16px var(--bw-nav-border),
      inset -1px 0 0 var(--bw-nav-border),
      inset 0 0 100px var(--bw-nav-hover);
  }
  
  /* Light mode scrollbar */
  .sidebar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
  }
  
  /* Light mode sidebar h1 - softer styling */
  .sidebar h1 {
    color: var(--bw-subtle);
    font-weight: 600;
    text-shadow: 
      0 1px 2px rgba(255,255,255,0.8),
      0 0 15px rgba(124, 58, 237, 0.15);
  }
}

/* ================= API Showcase Section ================= */
.api-showcase {
  background: var(--bw-surface-primary);
  border: 1px solid var(--bw-border);
  border-radius: 12px;
  padding: 2rem;
  margin: 1rem 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
}

.api-showcase::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, 
    var(--bw-accent) 0%, 
    #3b82f6 50%, 
    var(--bw-accent) 100%);
}

.api-showcase-content {
  position: relative;
  z-index: 1;
}

.api-intro {
  text-align: center;
  margin-bottom: 2rem;
}

.api-intro h2 {
  margin: 0 0 1rem 0;
  color: var(--bw-text-primary);
  font-size: 1.875rem;
  font-weight: 700;
}

.api-intro p {
  margin: 0;
  color: var(--bw-text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.feature-card {
  background: var(--bw-surface-secondary);
  border: 1px solid var(--bw-border);
  border-radius: 8px;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s ease;
  position: relative;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  border-color: var(--bw-accent);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  display: block;
}

.feature-card h3 {
  margin: 0 0 0.5rem 0;
  color: var(--bw-text-primary);
  font-size: 1.25rem;
  font-weight: 600;
}

.feature-card p {
  margin: 0 0 0.5rem 0;
  color: var(--bw-text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}

.feature-card small {
  color: var(--bw-accent);
  font-weight: 500;
  font-size: 0.75rem;
}

.api-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.api-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.api-btn-primary {
  background: var(--bw-accent);
  color: white;
}

.api-btn-primary:hover {
  background: var(--bw-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.api-btn-secondary {
  background: var(--bw-surface-secondary);
  color: var(--bw-text-primary);
  border-color: var(--bw-border);
}

.api-btn-secondary:hover {
  background: var(--bw-surface-tertiary);
  border-color: var(--bw-accent);
  transform: translateY(-1px);
}

.api-preview {
  background: var(--bw-surface-secondary);
  border: 1px solid var(--bw-border);
  border-radius: 8px;
  padding: 1.5rem;
}

.api-preview h4 {
  margin: 0 0 1rem 0;
  color: var(--bw-text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.code-preview pre {
  margin: 0;
  background: var(--bw-surface-primary);
  border: 1px solid var(--bw-border);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
  font-size: 0.75rem;
  line-height: 1.5;
}

.code-preview code {
  color: var(--bw-text-primary);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .api-showcase {
    padding: 1.5rem;
    margin: 0.5rem 0;
  }
  
  .api-intro h2 {
    font-size: 1.5rem;
  }
  
  .api-intro p {
    font-size: 1rem;
  }
  
  .feature-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .api-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .api-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
  
  .code-preview pre {
    font-size: 0.625rem;
    padding: 0.75rem;
  }
}

@media (max-width: 480px) {
  .api-showcase {
    padding: 1rem;
  }
  
  .feature-card {
    padding: 1rem;
  }
  
  .api-preview {
    padding: 1rem;
  }
}

/* ================= API Showcase Modal ================= */
.api-showcase-modal-content {
  max-width: 800px !important;
  max-height: 90vh;
  overflow-y: auto;
}

.api-showcase-header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--bw-border);
}

.api-showcase-header h2 {
  margin: 0 0 1rem 0;
  color: var(--bw-text-primary);
  font-size: 1.875rem;
  font-weight: 700;
}

.api-showcase-header p {
  margin: 0;
  color: var(--bw-text-secondary);
  font-size: 1.125rem;
  line-height: 1.6;
}

.api-showcase-features {
  margin-bottom: 2rem;
}

.api-showcase-features .feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.api-showcase-features .feature-card {
  background: var(--bw-surface-secondary);
  border: 1px solid var(--bw-border);
  border-radius: 8px;
  padding: 1rem;
  text-align: center;
  transition: all 0.3s ease;
}

.api-showcase-features .feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  border-color: var(--bw-accent);
}

.api-showcase-features .feature-icon {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  display: block;
}

.api-showcase-features .feature-card h3 {
  margin: 0 0 0.5rem 0;
  color: var(--bw-text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.api-showcase-features .feature-card p {
  margin: 0 0 0.5rem 0;
  color: var(--bw-text-secondary);
  font-size: 0.75rem;
  line-height: 1.4;
}

.api-showcase-features .feature-card small {
  color: var(--bw-accent);
  font-weight: 500;
  font-size: 0.625rem;
}

.api-showcase-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.api-showcase-actions .api-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.3s ease;
  border: 2px solid transparent;
}

.api-showcase-actions .api-btn-primary {
  background: var(--bw-accent);
  color: white;
}

.api-showcase-actions .api-btn-primary:hover {
  background: var(--bw-accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.api-showcase-actions .api-btn-secondary {
  background: var(--bw-surface-secondary);
  color: var(--bw-text-primary);
  border-color: var(--bw-border);
}

.api-showcase-actions .api-btn-secondary:hover {
  background: var(--bw-surface-tertiary);
  border-color: var(--bw-accent);
  transform: translateY(-1px);
}

.api-showcase-preview {
  background: var(--bw-surface-secondary);
  border: 1px solid var(--bw-border);
  border-radius: 8px;
  padding: 1rem;
}

.api-showcase-preview h4 {
  margin: 0 0 1rem 0;
  color: var(--bw-text-primary);
  font-size: 1rem;
  font-weight: 600;
}

.api-showcase-preview .code-preview pre {
  margin: 0;
  background: var(--bw-surface-primary);
  border: 1px solid var(--bw-border);
  border-radius: 6px;
  padding: 1rem;
  overflow-x: auto;
  font-family: 'Monaco', 'Consolas', 'Courier New', monospace;
  font-size: 0.75rem;
  line-height: 1.5;
}

.api-showcase-preview .code-preview code {
  color: var(--bw-text-primary);
}

/* Mobile responsiveness for API modal */
@media (max-width: 768px) {
  .api-showcase-modal-content {
    margin: 1rem;
    max-height: 85vh;
  }
  
  .api-showcase-header h2 {
    font-size: 1.5rem;
  }
  
  .api-showcase-features .feature-grid {
    grid-template-columns: 1fr;
  }
  
  .api-showcase-actions {
    flex-direction: column;
    align-items: center;
  }
  
  .api-showcase-actions .api-btn {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
  
  .api-showcase-preview .code-preview pre {
    font-size: 0.625rem;
    padding: 0.75rem;
  }
}

/* ── Collage Maker ───────────────────────────────────────────────────────── */
.collage-wrap {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

/* Toolbar */
.collage-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 10px 12px;
  background: var(--bw-surface, #14101a);
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 10px;
}

.collage-tool-group {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.collage-label {
  font-size: 0.75rem;
  color: var(--bw-subtle, #bfb8d4);
  white-space: nowrap;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.collage-upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: linear-gradient(90deg, var(--bw-accent,#7c3aed), var(--bw-accent-2,#d946ef));
  color: #fff;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter .15s, transform .15s;
}
.collage-upload-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }

.collage-select {
  background: var(--bw-elev, #1a1523);
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 6px;
  color: var(--bw-text, #f0eef7);
  padding: 6px 8px;
  font-size: 0.82rem;
  cursor: pointer;
}

.collage-dim-input {
  width: 64px;
  background: var(--bw-elev, #1a1523);
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 6px;
  color: var(--bw-text, #f0eef7);
  padding: 6px 8px;
  font-size: 0.82rem;
  text-align: center;
}

.collage-color-input {
  width: 34px;
  height: 32px;
  padding: 2px;
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 6px;
  background: none;
  cursor: pointer;
}

.collage-range {
  width: 90px;
  accent-color: var(--bw-accent, #7c3aed);
}

.collage-btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  background: var(--bw-muted-bg, rgba(255,255,255,.06));
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 6px;
  color: var(--bw-text, #f0eef7);
  font-size: 0.8rem;
  cursor: pointer;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}
.collage-btn-sm:hover       { background: var(--bw-nav-hover, rgba(124,58,237,.18)); border-color: var(--bw-nav-border, rgba(124,58,237,.35)); }
.collage-btn-danger:hover   { background: rgba(239,68,68,.15); border-color: rgba(239,68,68,.5); color: #ef4444; }

/* Canvas */
.collage-canvas-outer {
  width: 100%;
  overflow: auto;
  background: repeating-conic-gradient(#1a1523 0% 25%, #14101a 0% 50%) 0 0 / 16px 16px;
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  padding: 12px;
  transition: outline .15s;
}
.collage-canvas-outer.collage-dragover { outline: 3px dashed var(--bw-accent,#7c3aed); }
.collage-canvas-outer canvas { display: block; box-shadow: 0 8px 32px rgba(0,0,0,.5); border-radius: 4px; }

/* Strip */
.collage-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 72px;
  padding: 8px;
  background: var(--bw-surface, #14101a);
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 10px;
  align-items: center;
}

.collage-strip-empty {
  color: var(--bw-subtle, #bfb8d4);
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
}

.collage-thumb {
  position: relative;
  width: 60px;
  height: 54px;
  border-radius: 6px;
  overflow: hidden;
  border: 2px solid var(--bw-line, rgba(255,255,255,.1));
  cursor: pointer;
  transition: border-color .15s;
  flex-shrink: 0;
}
.collage-thumb:hover          { border-color: var(--bw-accent,#7c3aed); }
.collage-thumb.collage-thumb-active { border-color: var(--bw-accent,#7c3aed); box-shadow: 0 0 0 2px rgba(124,58,237,.35); }
.collage-thumb img            { width: 100%; height: 100%; object-fit: cover; display: block; }
.collage-thumb-del {
  position: absolute;
  top: 2px; right: 2px;
  width: 18px; height: 18px;
  background: rgba(0,0,0,.7);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 9px;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.collage-thumb:hover .collage-thumb-del { display: flex; }

/* Export bar */
.collage-export-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 10px 12px;
  background: var(--bw-surface, #14101a);
  border: 1px solid var(--bw-line, rgba(255,255,255,.1));
  border-radius: 10px;
}

.collage-export-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 20px;
  background: linear-gradient(90deg, var(--bw-accent,#7c3aed), var(--bw-accent-2,#d946ef));
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter .15s, transform .15s;
  margin-left: auto;
}
.collage-export-btn:hover:not(:disabled) { filter: brightness(1.1); transform: translateY(-1px); }
.collage-export-btn:disabled             { opacity: 0.4; cursor: not-allowed; }

@media (max-width: 600px) {
  .collage-toolbar { gap: 6px 10px; }
  .collage-export-btn { margin-left: 0; width: 100%; justify-content: center; }
}


/* =========================================================================
   OVERHAUL ADDITIONS — 2026-04
   ========================================================================= */

/* ── Converter slide-in animation ─────────────────────────────────────────── */
@keyframes converterSlideIn {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}
.converter-animate-in {
  animation: converterSlideIn 0.28s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ── Toast notification ──────────────────────────────────────────────────── */
.bw-toast {
  position: fixed;
  bottom: -80px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bw-elev);
  color: var(--bw-text);
  border: 1px solid var(--bw-line);
  border-radius: 30px;
  padding: 10px 22px;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  box-shadow: 0 8px 30px rgba(0,0,0,0.35);
  z-index: 99999;
  transition: bottom 0.35s cubic-bezier(0.16,1,0.3,1), opacity 0.35s ease;
  pointer-events: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.bw-toast--visible {
  bottom: 28px;
}
.bw-toast--success { border-color: rgba(34,197,94,0.4); }
.bw-toast--error   { border-color: rgba(239,68,68,0.4); }
.bw-toast i { color: var(--bw-accent); }
.bw-toast--success i { color: #22c55e; }
.bw-toast--error   i { color: #ef4444; }

/* ── Sidebar search ──────────────────────────────────────────────────────── */
.sidebar-search-wrapper {
  list-style: none;
  padding: 0 1rem 0.75rem 1rem;
  border-bottom: 1px solid var(--bw-line);
  margin-bottom: 0.5rem;
}
.sidebar-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 10px;
  padding: 8px 12px;
  transition: border-color 0.2s;
}
.sidebar-search:focus-within {
  border-color: var(--bw-accent);
  box-shadow: 0 0 0 3px rgba(124,58,237,0.12);
}
.sidebar-search-icon { color: var(--bw-subtle); font-size: 0.85rem; flex-shrink: 0; }
.sidebar-search-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--bw-text);
  font-size: 0.9rem;
  font-family: inherit;
}
.sidebar-search-input::placeholder { color: var(--bw-subtle); }
.sidebar-search-clear {
  all: unset;
  cursor: pointer;
  color: var(--bw-subtle);
  font-size: 0.85rem;
  line-height: 1;
  padding: 2px 4px;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}
.sidebar-search-clear:hover { color: var(--bw-text); background: rgba(255,255,255,0.08); }
.sidebar-search-clear.hidden { display: none; }

/* ── Nav item icons & fav stars ─────────────────────────────────────────── */
.nav-item-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.4em;
  font-size: 0.95em;
  opacity: 0.8;
  flex-shrink: 0;
  transition: opacity 0.2s;
}
.nav-category-item button:hover .nav-item-icon,
.nav-category-item button.active .nav-item-icon { opacity: 1; }

.nav-item-name {
  flex: 1;
  text-align: left;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-fav-star {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.6em;
  height: 1.6em;
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0;
  transition: opacity 0.2s, color 0.2s, background 0.15s;
  color: var(--bw-subtle);
  font-size: 0.8em;
}
.nav-category-item button:hover .nav-fav-star,
.nav-category-item button:focus-within .nav-fav-star { opacity: 1; }
.nav-fav-star.active { opacity: 1 !important; color: #fbbf24; }
.nav-fav-star:hover { background: rgba(251,191,36,0.15); color: #fbbf24; }

/* ── Module header (enhanced) ──────────────────────────────────────────── */
.module-header-enhanced {
  margin-bottom: 1.5rem;
}

/* Breadcrumb */
.module-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--bw-subtle);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.bc-home-btn {
  all: unset;
  cursor: pointer;
  color: var(--bw-accent);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.8rem;
  padding: 3px 8px;
  border-radius: 6px;
  transition: background 0.15s;
}
.bc-home-btn:hover { background: rgba(124,58,237,0.12); }
.bc-home-label { display: inline; }
.bc-sep { color: var(--bw-subtle); font-size: 0.9rem; user-select: none; }
.bc-category { color: var(--bw-subtle); text-transform: uppercase; letter-spacing: 0.5px; font-size: 0.75rem; }
.bc-current { color: var(--bw-text); font-weight: 600; }

/* Title bar */
.module-title-bar {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}
.module-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}
.module-info { flex: 1; min-width: 0; }
.module-title {
  margin: 0 0 4px 0;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--bw-text);
  line-height: 1.2;
}
.module-desc {
  margin: 0;
  font-size: 0.9rem;
  color: var(--bw-subtle);
  line-height: 1.5;
}
.module-header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.module-action-btn {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--bw-line);
  background: var(--bw-elev);
  color: var(--bw-subtle);
  transition: all 0.2s ease;
  white-space: nowrap;
}
.module-action-btn:hover {
  background: var(--bw-surface);
  color: var(--bw-text);
  border-color: var(--bw-accent);
  transform: translateY(-1px);
}
.module-action-btn.fav-toggle-btn.active {
  color: #fbbf24;
  border-color: rgba(251,191,36,0.4);
  background: rgba(251,191,36,0.1);
}
.module-action-btn.fav-toggle-btn.active:hover {
  background: rgba(251,191,36,0.18);
  border-color: rgba(251,191,36,0.6);
}
.action-label { font-size: 0.78rem; }

@media (max-width: 600px) {
  .module-title-bar { gap: 0.75rem; }
  .module-icon-wrap { width: 44px; height: 44px; font-size: 1.3rem; border-radius: 12px; }
  .module-title { font-size: 1.3rem; }
  .module-action-btn .action-label { display: none; }
  .module-action-btn { padding: 8px 10px; }
  .bc-home-label { display: none; }
}

/* ── Home dashboard ──────────────────────────────────────────────────────── */
.dash-welcome {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--bw-line);
  margin-bottom: 2rem;
}
.dash-welcome-title {
  margin: 0 0 6px 0;
  font-size: 2rem;
  font-weight: 800;
  color: var(--bw-text);
  line-height: 1.2;
}
.dash-brand {
  background: linear-gradient(135deg, var(--bw-accent), #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.dash-welcome-sub {
  margin: 0;
  color: var(--bw-subtle);
  font-size: 0.95rem;
}
.dash-welcome-sub kbd {
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.8em;
  font-family: inherit;
  color: var(--bw-text);
}
.dash-header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}
.dash-cmd-btn {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 10px;
  color: var(--bw-text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
}
.dash-cmd-btn:hover {
  border-color: var(--bw-accent);
  background: var(--bw-surface);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(124,58,237,0.15);
}
.dash-cmd-shortcut {
  display: inline-flex;
  gap: 3px;
  margin-left: 4px;
}
.dash-cmd-shortcut kbd {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  padding: 1px 6px;
  font-size: 0.75em;
  font-family: inherit;
}
.dash-shortcuts-btn {
  all: unset;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 10px;
  color: var(--bw-subtle);
  font-size: 1rem;
  transition: all 0.2s;
}
.dash-shortcuts-btn:hover { color: var(--bw-text); border-color: var(--bw-accent); background: var(--bw-surface); transform: translateY(-1px); }

/* Dashboard sections */
.home-dashboard { display: flex; flex-direction: column; gap: 2.5rem; }

.dash-section {}
.dash-section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--bw-subtle);
  margin: 0 0 1rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--bw-line);
}
.dash-section-title i { font-size: 1rem; }
.dash-section-icon { font-size: 1rem; }

/* Converter cards */
.dash-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.dash-card {
  background: var(--bw-elev, #1a1523);
  border: 1px solid var(--bw-line);
  border-radius: 16px;
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16,1,0.3,1);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  overflow: hidden;
}
.dash-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(255,255,255,0.03));
  pointer-events: none;
}
.dash-card:hover {
  transform: translateY(-4px);
  border-color: var(--bw-accent);
  box-shadow:
    0 12px 40px rgba(0,0,0,0.3),
    0 0 0 1px var(--bw-accent);
}
.dash-card:focus { outline: 2px solid var(--bw-accent); outline-offset: 2px; }

.dash-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}
.dash-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.card-fav-btn {
  all: unset;
  cursor: pointer;
  color: var(--bw-subtle);
  opacity: 0;
  transition: opacity 0.2s, color 0.2s, transform 0.15s;
  font-size: 0.9rem;
  padding: 4px;
  border-radius: 50%;
  line-height: 1;
}
.dash-card:hover .card-fav-btn,
.card-fav-btn.active { opacity: 1; }
.card-fav-btn.active { color: #fbbf24; }
.card-fav-btn:hover { color: #fbbf24; transform: scale(1.2); }

.dash-card-body {}
.dash-card-title {
  margin: 0 0 4px 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--bw-text);
  line-height: 1.3;
}
.dash-card-desc {
  margin: 0;
  font-size: 0.8rem;
  color: var(--bw-subtle);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.dash-card-footer {
  margin-top: auto;
}
.dash-card-open {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--bw-accent);
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.dash-card:hover .dash-card-open { opacity: 1; transform: translateX(2px); }

@media (max-width: 768px) {
  .dash-welcome { flex-direction: column; align-items: flex-start; }
  .dash-welcome-title { font-size: 1.5rem; }
  .dash-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.75rem; }
  .dash-card { padding: 1rem; }
  .card-fav-btn { opacity: 1; }
}

/* ── Command Palette ─────────────────────────────────────────────────────── */
.cmd-palette {
  position: fixed;
  inset: 0;
  z-index: 99998;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: clamp(60px, 12vh, 160px);
}
.cmd-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.cmd-box {
  position: relative;
  width: min(640px, 94vw);
  background: var(--bw-surface, #1a1625);
  border: 1px solid rgba(124,58,237,0.35);
  border-radius: 16px;
  box-shadow:
    0 40px 80px rgba(0,0,0,0.5),
    0 0 0 1px rgba(255,255,255,0.06);
  overflow: hidden;
  animation: cmdSlideIn 0.2s cubic-bezier(0.16,1,0.3,1) both;
}
@keyframes cmdSlideIn {
  from { opacity: 0; transform: scale(0.96) translateY(-12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.cmd-search-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--bw-line);
}
.cmd-search-icon { color: var(--bw-subtle); font-size: 1rem; flex-shrink: 0; }
.cmd-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--bw-text);
  font-size: 1rem;
  font-family: inherit;
}
.cmd-input::placeholder { color: var(--bw-subtle); }
.cmd-esc-hint {
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.75rem;
  color: var(--bw-subtle);
  font-family: inherit;
  cursor: pointer;
  transition: background 0.15s;
}
.cmd-esc-hint:hover { background: var(--bw-surface); color: var(--bw-text); }

.cmd-list {
  max-height: min(400px, 50vh);
  overflow-y: auto;
  padding: 6px;
}
.cmd-list::-webkit-scrollbar { width: 6px; }
.cmd-list::-webkit-scrollbar-thumb { background: var(--bw-line); border-radius: 3px; }
.cmd-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.12s;
  border: 1px solid transparent;
}
.cmd-item:hover, .cmd-item--selected {
  background: var(--bw-nav-hover, rgba(124,58,237,0.12));
  border-color: var(--bw-line);
}
.cmd-item--selected { background: rgba(124,58,237,0.15) !important; border-color: rgba(124,58,237,0.3) !important; }

.cmd-item-icon {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  background: rgba(124,58,237,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.cmd-item-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  gap: 2px;
}
.cmd-item-name {
  font-weight: 600;
  color: var(--bw-text);
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cmd-item-desc {
  font-size: 0.78rem;
  color: var(--bw-subtle);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cmd-item-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.cmd-item-star { color: #fbbf24; font-size: 0.75rem; }
.cmd-item-cat {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--bw-subtle);
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 5px;
  padding: 2px 7px;
}

.cmd-empty {
  padding: 32px;
  text-align: center;
  color: var(--bw-subtle);
  font-size: 0.9rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.cmd-empty i { font-size: 1.5rem; opacity: 0.4; }

.cmd-footer {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 10px 20px;
  border-top: 1px solid var(--bw-line);
  font-size: 0.72rem;
  color: var(--bw-subtle);
}
.cmd-footer kbd {
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.7rem;
  font-family: inherit;
  color: var(--bw-text);
}

/* ── Keyboard Shortcuts Panel ────────────────────────────────────────────── */
.shortcuts-panel {
  position: fixed;
  inset: 0;
  z-index: 99997;
  display: flex;
  align-items: center;
  justify-content: center;
}
.shortcuts-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(4px);
}
.shortcuts-box {
  position: relative;
  width: min(500px, 92vw);
  background: var(--bw-surface, #1a1625);
  border: 1px solid rgba(124,58,237,0.3);
  border-radius: 16px;
  box-shadow: 0 32px 64px rgba(0,0,0,0.5);
  overflow: hidden;
  animation: cmdSlideIn 0.2s cubic-bezier(0.16,1,0.3,1) both;
}
.shortcuts-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--bw-line);
}
.shortcuts-header h3 {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--bw-text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.shortcuts-close {
  all: unset;
  cursor: pointer;
  color: var(--bw-subtle);
  font-size: 1.1rem;
  padding: 4px 8px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.shortcuts-close:hover { color: var(--bw-text); background: rgba(255,255,255,0.08); }

.shortcuts-grid {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 1rem 1.5rem;
}
.shortcut-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--bw-line);
  font-size: 0.875rem;
  color: var(--bw-text);
}
.shortcut-item:last-child { border-bottom: none; }
.shortcut-keys {
  display: flex;
  gap: 4px;
  align-items: center;
  min-width: 100px;
}
.shortcut-item kbd {
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 5px;
  padding: 3px 8px;
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--bw-text);
  box-shadow: 0 2px 0 var(--bw-line);
}
.shortcuts-footer {
  padding: 0.75rem 1.5rem 1rem;
  margin: 0;
  font-size: 0.8rem;
  color: var(--bw-subtle);
  text-align: center;
  border-top: 1px solid var(--bw-line);
}
.shortcuts-footer kbd {
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 0.75em;
  font-family: inherit;
}

/* ── Header title hover hint ─────────────────────────────────────────────── */
.header-title-container {
  position: relative;
}
.header-title-container:hover::after {
  content: 'Home';
  position: absolute;
  bottom: -20px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
  text-transform: uppercase;
  white-space: nowrap;
  pointer-events: none;
}

/* ==========================================================================
   ENCRYPTION & HASHING TOOL — 2026-04
   ========================================================================== */

.encryption-tool-block { max-width: 700px; }

/* Algorithm selector */
.algo-selector-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.algo-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.algo-group-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--bw-subtle);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.algo-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}
.algo-pill {
  padding: 0.28rem 0.8rem;
  border-radius: 20px;
  border: 1.5px solid var(--bw-line);
  background: var(--bw-elev);
  color: var(--bw-text);
  font-size: 0.82rem;
  font-family: monospace;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  line-height: 1.6;
}
.algo-pill:hover { border-color: var(--bw-accent); color: var(--bw-accent); }
.algo-pill.active {
  background: var(--bw-accent);
  color: #fff;
  border-color: var(--bw-accent);
}

/* Notice panel — now collapsible */
.enc-notice-details {
  border-radius: 10px;
  margin-bottom: 1rem;
  border: 1.5px solid transparent;
  overflow: hidden;
}
.enc-notice-details--warn   { border-color: #f59e0b; }
.enc-notice-details--danger { border-color: #ef4444; }
.enc-notice-details--good   { border-color: #22c55e; }
.enc-notice-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  list-style: none;
  user-select: none;
  background: var(--bw-surface-2);
}
.enc-notice-summary::-webkit-details-marker { display:none; }
.enc-notice-chevron { margin-left:auto; font-size:0.7rem; opacity:0.5; transition:transform .2s; }
.enc-notice-details[open] .enc-notice-chevron { transform:rotate(180deg); }
.enc-badge { display:inline-flex; align-items:center; justify-content:center; width:20px; height:20px; border-radius:50%; font-size:0.7rem; flex-shrink:0; }
.enc-badge--warn   { background:rgba(245,158,11,.15); color:#f59e0b; }
.enc-badge--danger { background:rgba(239,68,68,.15);  color:#ef4444; }
.enc-badge--good   { background:rgba(34,197,94,.15);  color:#22c55e; }

.algo-notice {
  border-radius: 0;
  padding: 0.65rem 0.9rem;
  margin: 0;
  font-size: 0.84rem;
  border: none;
  border-top: 1px solid;
}
.algo-notice--warn   { background: rgba(245,158,11,0.08); border-color: #f59e0b; }
.algo-notice--danger { background: rgba(239,68,68,0.08);  border-color: #ef4444; }
.algo-notice--good   { background: rgba(34,197,94,0.08);  border-color: #22c55e; }

.algo-notice-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.algo-notice-body {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  line-height: 1.5;
  opacity: 0.9;
}
.algo-notice-line { display: flex; align-items: flex-start; gap: 0.4rem; }
.algo-notice-line code {
  font-size: 0.82em;
  background: rgba(0,0,0,0.12);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

/* Options panels */
.algo-options-panel {
  margin: 0 0 1rem;
  padding: 1rem;
  background: var(--bw-elev);
  border: 1px solid var(--bw-line);
  border-radius: 8px;
}
.algo-options-panel label {
  font-size: 0.83rem;
  font-weight: 600;
  display: block;
  margin-bottom: 0.3rem;
  color: var(--bw-text);
}
.algo-options-panel input[type="range"] { accent-color: var(--bw-accent); cursor: pointer; }
.algo-options-panel input[type="number"],
.algo-options-panel input[type="text"],
.algo-options-panel select {
  width: 100%;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--bw-line);
  border-radius: 6px;
  background: var(--bw-bg);
  color: var(--bw-text);
  font-size: 0.85rem;
  font-family: inherit;
}
.algo-options-panel small { font-size: 0.78rem; opacity: 0.65; margin-top: 0.25rem; display: block; }

/* PBKDF2 salt row */
#enc-pbkdf2-salt { font-family: monospace !important; font-size: 0.78em !important; }

/* Hash output code block */
#enc-hash-value {
  font-size: 0.82rem;
  line-height: 1.7;
  word-break: break-all;
  white-space: pre-wrap;
}

/* Salt display line */
#enc-pbkdf2-salt-display code {
  font-size: 0.78em;
  word-break: break-all;
  opacity: 0.85;
}

/* Compare section */
.compare-section {
  margin-top: 1.5rem;
  padding: 1.25rem;
  background: var(--bw-elev);
  border-radius: 10px;
  border: 1px solid var(--bw-line);
}
.compare-section h3 { margin: 0 0 1rem; }
.compare-section input[type="text"] {
  width: 100%;
  box-sizing: border-box;
  padding: 0.5rem 0.75rem;
  font-family: monospace;
  font-size: 0.82rem;
  border: 1px solid var(--bw-line);
  border-radius: 6px;
  background: var(--bw-bg);
  color: var(--bw-text);
  margin-bottom: 0.75rem;
}

/* Comparison result */
.comparison-result {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  border-radius: 8px;
  margin-top: 0.75rem;
  border: 1.5px solid;
}
.comparison-result.match    { background: rgba(34,197,94,0.08);  border-color: #22c55e; }
.comparison-result.no-match { background: rgba(239,68,68,0.08);  border-color: #ef4444; }
.comparison-result .result-icon { font-size: 1.8rem; flex-shrink: 0; }
.comparison-result .result-text strong { display: block; font-size: 1rem; }
.comparison-result .result-text p { margin: 0.25rem 0 0; font-size: 0.85rem; opacity: 0.75; }

/* Use-cases grid */
#enc-use-cases h4 { display: flex; align-items: center; gap: 0.5rem; }

/* Use-cases collapsible */
.enc-use-details { margin-top:1.5rem; border:1.5px solid var(--bw-border); border-radius:10px; overflow:hidden; }
.enc-use-summary { display:flex; align-items:center; gap:0.6rem; padding:0.65rem 1rem; cursor:pointer; font-weight:600; font-size:0.875rem; list-style:none; user-select:none; background:var(--bw-surface-2); }
.enc-use-summary::-webkit-details-marker { display:none; }
.enc-use-chevron { margin-left:auto; font-size:0.75rem; opacity:0.6; transition:transform .2s; }
.enc-use-details[open] .enc-use-chevron { transform:rotate(180deg); }
.enc-use-details .use-cases { padding:0.75rem 1rem 1rem; }

/* =========================================================================
   SHAPE CALCULATOR
   ========================================================================= */
.shape-calc-block {}
.sc-toolbar { display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap; margin-bottom:1.5rem; }
.sc-dim-tabs { display:flex; gap:0.5rem; }
.sc-dim-btn { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); color:var(--bw-subtle); border-radius:8px; padding:0.45rem 1rem; font-size:0.875rem; cursor:pointer; transition:all .18s; }
.sc-dim-btn.active, .sc-dim-btn:hover { background:var(--bw-accent); color:#fff; border-color:var(--bw-accent); }
.sc-shape-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(130px, 1fr)); gap:0.75rem; }
.sc-shape-btn { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); color:var(--bw-text); border-radius:10px; padding:1rem 0.5rem; display:flex; flex-direction:column; align-items:center; gap:0.5rem; font-size:0.875rem; cursor:pointer; transition:all .18s; }
.sc-shape-btn i { font-size:1.3rem; color:var(--bw-accent); }
.sc-shape-btn:hover { border-color:var(--bw-accent); background:rgba(var(--bw-accent-rgb),.08); }
.sc-input-panel { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1.5rem; }
.sc-input-header { display:flex; align-items:center; justify-content:space-between; margin-bottom:1rem; font-size:1rem; font-weight:600; gap:1rem; }
.sc-fields-row { display:flex; flex-wrap:wrap; gap:1rem; margin-bottom:1rem; }
.sc-fields-row .bw-form-group { flex:1; min-width:140px; }
.sc-output { margin-top:1.5rem; }
.sc-output-cols { display:grid; grid-template-columns:minmax(0,1fr) 260px; gap:1.5rem; align-items:start; }
@media(max-width:700px) { .sc-output-cols { grid-template-columns:1fr; } }
.sc-results-panel { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem; }
.sc-results-header { display:flex; align-items:center; gap:0.5rem; font-weight:600; margin-bottom:1rem; font-size:1rem; }
.sc-result-row { display:flex; justify-content:space-between; align-items:center; padding:0.45rem 0; border-bottom:1px solid var(--bw-border); gap:1rem; }
.sc-result-row:last-child { border-bottom:none; }
.sc-result-label { color:var(--bw-subtle); font-size:0.875rem; }
.sc-result-val { font-weight:600; font-family:monospace; color:var(--bw-text); }
.sc-diagram-panel { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem; min-width:0; overflow:hidden; }
.sc-diagram-title { font-size:0.875rem; font-weight:600; color:var(--bw-subtle); margin-bottom:0.75rem; }

/* =========================================================================
   STORAGE SIZE CONVERTER
   ========================================================================= */
.storage-block {}
.storage-input-row { display:flex; gap:1rem; flex-wrap:wrap; margin-bottom:1rem; }
.storage-filters { display:flex; align-items:center; gap:1rem; flex-wrap:wrap; margin-bottom:1rem; font-size:0.875rem; }
.storage-filter-label { color:var(--bw-subtle); font-weight:600; }
.storage-chk { display:flex; align-items:center; gap:0.4rem; cursor:pointer; }
.storage-badge { font-size:0.7rem; font-weight:700; padding:1px 6px; border-radius:4px; letter-spacing:.05em; }
.storage-badge.si  { background:rgba(59,130,246,.15); color:#3b82f6; }
.storage-badge.iec { background:rgba(16,185,129,.15); color:#10b981; }
.storage-explain { display:flex; gap:0.75rem; background:rgba(var(--bw-accent-rgb),.06); border:1px solid var(--bw-border); border-radius:8px; padding:0.75rem 1rem; font-size:0.85rem; color:var(--bw-text); margin-bottom:1.25rem; }
.storage-explain i { margin-top:2px; color:var(--bw-accent); flex-shrink:0; }
.storage-results { display:flex; flex-direction:column; gap:0.25rem; }
.storage-row { display:flex; align-items:center; padding:0.5rem 0.75rem; border-radius:7px; gap:0.5rem; background:var(--bw-surface-2); border:1px solid transparent; transition:.15s; }
.storage-row--active { border-color:var(--bw-accent); background:rgba(var(--bw-accent-rgb),.07); }
.storage-row-label { flex:1; font-size:0.875rem; color:var(--bw-text); display:flex; align-items:center; gap:0.4rem; }
.storage-row-val { font-weight:700; font-family:monospace; color:var(--bw-text); min-width:140px; text-align:right; }
.storage-copy-btn { background:none; border:none; color:var(--bw-subtle); cursor:pointer; padding:0.2rem 0.4rem; border-radius:4px; transition:.15s; }
.storage-copy-btn:hover { color:var(--bw-accent); }
.storage-compare { margin-top:1.5rem; background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem 1.25rem; }
.storage-compare-title { font-weight:600; margin-bottom:0.75rem; display:flex; align-items:center; gap:0.5rem; }
.storage-comp-row { display:flex; align-items:center; gap:0.75rem; padding:0.5rem 0; border-bottom:1px solid var(--bw-border); flex-wrap:wrap; font-size:0.875rem; }
.storage-comp-row:last-child { border-bottom:none; }
.sc-si  { color:#3b82f6; flex:1; min-width:120px; }
.sc-iec { color:#10b981; flex:1; min-width:120px; }
.sc-mid { color:var(--bw-subtle); }
.sc-diff { font-size:0.8rem; color:var(--bw-subtle); white-space:nowrap; }
.sc-diff--bigger  { color:#f59e0b; }
.sc-diff--smaller { color:#94a3b8; }

/* =========================================================================
   OHM'S LAW CALCULATOR
   ========================================================================= */
.ohms-block {}
.ohms-triangle-wrap { display:flex; flex-direction:column; align-items:center; gap:0.5rem; margin-bottom:1rem; }
.ohms-triangle-svg  { width:160px; height:auto; }
.ohms-power-badge   { font-size:0.78rem; font-family:monospace; color:var(--bw-subtle); background:var(--bw-surface-2); border:1px solid var(--bw-border); border-radius:6px; padding:3px 10px; }
.ohms-hint { font-size:0.875rem; color:var(--bw-subtle); margin-bottom:1.25rem; }
.ohms-fields { display:grid; grid-template-columns:repeat(auto-fill, minmax(240px, 1fr)); gap:1rem; margin-bottom:1rem; }
.ohms-field { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem; display:flex; align-items:flex-start; gap:0.75rem; transition:.2s; }
.ohms-field.ohms-is-result { border-color:var(--bw-accent); background:rgba(var(--bw-accent-rgb),.05); }
.ohms-sym-wrap { width:36px; height:36px; border-radius:50%; background:var(--ohms-c,#888); color:#fff; display:flex; align-items:center; justify-content:center; font-size:1.1rem; font-weight:800; flex-shrink:0; margin-top:4px; }
.ohms-field-body { flex:1; }
.ohms-field-label { display:block; font-size:0.8rem; font-weight:600; color:var(--bw-subtle); margin-bottom:0.35rem; }
.ohms-input-row { display:flex; gap:0.4rem; }
.ohms-inp { flex:1; min-width:0; }
.ohms-pfx { min-width:70px; }
.ohms-result-panel { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem 1.25rem; margin-top:0.5rem; }
.ohms-result-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:0.75rem; }
@media(max-width:560px) { .ohms-result-grid { grid-template-columns:repeat(2,1fr); } }
.ohms-res-item { background:var(--bw-surface-3); border-radius:8px; padding:0.75rem; display:flex; flex-direction:column; align-items:center; gap:0.2rem; border:1.5px solid transparent; border-color:var(--ohms-c,var(--bw-border)); }
.ohms-res-sym  { font-size:1.2rem; font-weight:800; color:var(--ohms-c,var(--bw-accent)); }
.ohms-res-val  { font-size:1rem; font-weight:700; font-family:monospace; }
.ohms-res-unit { font-size:0.75rem; color:var(--bw-subtle); }
.ohms-ref { margin-top:1.5rem; background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem 1.25rem; }
.ohms-ref-title { font-weight:600; margin-bottom:0.75rem; display:flex; align-items:center; gap:0.5rem; }
.ohms-ref-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(130px,1fr)); gap:0.5rem; }
.ohms-ref-card { background:var(--bw-surface-3); border-radius:7px; padding:0.5rem 0.75rem; text-align:center; font-size:0.85rem; }

/* =========================================================================
   UNIX TIMESTAMP CONVERTER
   ========================================================================= */
.unix-block {}
.unix-live { display:flex; align-items:center; gap:0.75rem; background:rgba(var(--bw-accent-rgb),.07); border:1.5px solid var(--bw-border); border-radius:10px; padding:0.6rem 1rem; margin-bottom:1.5rem; flex-wrap:wrap; }
.unix-live-dot { width:8px; height:8px; border-radius:50%; background:#22c55e; box-shadow:0 0 6px #22c55e; flex-shrink:0; animation:unix-blink 1s steps(1) infinite; }
@keyframes unix-blink { 0%,100%{opacity:1} 50%{opacity:.3} }
.unix-live-label { font-size:0.8rem; color:var(--bw-subtle); }
.unix-live-num { font-family:monospace; font-weight:700; font-size:1rem; color:var(--bw-text); }
.unix-live-sep { color:var(--bw-subtle); }
.unix-live-ms  { font-family:monospace; font-size:0.8rem; color:var(--bw-subtle); }
.unix-now-btn  { margin-left:auto; }
.unix-panels { display:grid; grid-template-columns:1fr 1fr; gap:1.25rem; margin-bottom:1.25rem; }
@media(max-width:640px) { .unix-panels { grid-template-columns:1fr; } }
.unix-panel { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1.25rem; }
.unix-panel-title { font-weight:600; margin-bottom:1rem; display:flex; align-items:center; gap:0.5rem; }
.unix-input-row { display:flex; gap:0.5rem; margin-bottom:1rem; flex-wrap:wrap; }
.unix-input-row .bw-input { flex:1; min-width:100px; }
.unix-results { display:flex; flex-direction:column; gap:0.3rem; margin-top:0.75rem; }
.unix-row { display:flex; align-items:center; gap:0.5rem; padding:0.4rem 0.5rem; border-radius:6px; background:var(--bw-surface-3); font-size:0.8rem; }
.unix-row-label { color:var(--bw-subtle); min-width:130px; flex-shrink:0; }
.unix-row-val   { font-family:monospace; flex:1; word-break:break-all; color:var(--bw-text); }
.unix-copy { background:none; border:none; color:var(--bw-subtle); cursor:pointer; padding:2px 5px; border-radius:4px; }
.unix-copy:hover { color:var(--bw-accent); }
.unix-relative-section { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:10px; padding:0.75rem 1rem; margin-bottom:1rem; display:flex; align-items:center; gap:0.75rem; }
.unix-rel-title { font-size:0.8rem; color:var(--bw-subtle); font-weight:600; white-space:nowrap; }
.unix-rel-text  { font-size:1rem; font-weight:700; }
.unix-rel-text.past   { color:#3b82f6; }
.unix-rel-text.future { color:#22c55e; }
.unix-ref { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem 1.25rem; margin-top:1rem; }
.unix-ref-title { font-weight:600; margin-bottom:0.75rem; display:flex; align-items:center; gap:0.5rem; }
.unix-ref-grid { display:flex; flex-wrap:wrap; gap:0.5rem; }
.unix-ref-btn { background:var(--bw-surface-3); border:1px solid var(--bw-border); border-radius:7px; padding:0.4rem 0.75rem; font-size:0.8rem; cursor:pointer; color:var(--bw-text); transition:.15s; }
.unix-ref-btn:hover { border-color:var(--bw-accent); color:var(--bw-accent); }

/* =========================================================================
   PAPER SIZE CONVERTER
   ========================================================================= */
.paper-block {}
.paper-toolbar { display:flex; align-items:center; justify-content:space-between; gap:1rem; flex-wrap:wrap; margin-bottom:1.25rem; }
.paper-series-tabs { display:flex; gap:0.4rem; flex-wrap:wrap; }
.paper-series-btn { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); color:var(--bw-subtle); border-radius:7px; padding:0.35rem 0.85rem; font-size:0.82rem; cursor:pointer; font-weight:600; transition:.15s; }
.paper-series-btn.active, .paper-series-btn:hover { background:var(--bw-accent); color:#fff; border-color:var(--bw-accent); }
.paper-unit-wrap { display:flex; align-items:center; gap:0.5rem; }
.paper-layout { display:flex; flex-direction:column; gap:1.25rem; }
.paper-table-wrap { overflow-x:auto; overflow-y:auto; width:100%; max-height:360px; border:1.5px solid var(--bw-border); border-radius:10px; }
.paper-table { width:100%; border-collapse:collapse; font-size:0.875rem; min-width:280px; }
.paper-table thead th { position:sticky; top:0; z-index:1; background:var(--bw-surface-2); }
.paper-table th { background:var(--bw-surface-2); color:var(--bw-subtle); font-size:0.75rem; font-weight:700; text-transform:uppercase; letter-spacing:.05em; padding:0.6rem 0.75rem; border-bottom:2px solid var(--bw-border); text-align:left; }
.paper-table td { padding:0.5rem 0.75rem; border-bottom:1px solid var(--bw-border); font-family:monospace; }
.paper-row { cursor:pointer; transition:.12s; }
.paper-row:hover { background:rgba(var(--bw-accent-rgb),.06); }
.paper-row--active { background:rgba(var(--bw-accent-rgb),.1) !important; }
.paper-name { font-weight:700; font-family:unset; }
.paper-badge { font-size:0.7rem; font-weight:700; padding:2px 7px; border-radius:4px; }
.paper-badge.ps-a  { background:rgba(59,130,246,.15); color:#3b82f6; }
.paper-badge.ps-b  { background:rgba(16,185,129,.15); color:#10b981; }
.paper-badge.ps-c  { background:rgba(168,85,247,.15); color:#a855f7; }
.paper-badge.ps-us { background:rgba(245,158,11,.15); color:#f59e0b; }
.paper-diagram-wrap { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; padding:1rem; }
.paper-diagram-title { font-size:0.875rem; font-weight:600; color:var(--bw-subtle); margin-bottom:0.5rem; display:flex; align-items:center; gap:0.5rem; }
.paper-diagram-prompt { text-align:center; color:var(--bw-subtle); font-size:0.85rem; padding:0.75rem 0; }
.paper-svg { width:100%; max-width:280px; height:auto; display:block; margin:0 auto; }

/* =========================================================================
   COLOR PALETTE GENERATOR
   ========================================================================= */
.palette-block {}
.palette-input-row { display:flex; gap:1rem; flex-wrap:wrap; align-items:flex-end; margin-bottom:1.5rem; }
.palette-color-wrap { flex:1; min-width:220px; }
.palette-picker-row { display:flex; gap:0.5rem; align-items:center; }
.pal-color-input { width:46px; height:38px; padding:2px; border:1.5px solid var(--bw-border); border-radius:8px; cursor:pointer; background:none; }
.pal-hex-input { flex:1; font-family:monospace; }
.palette-scheme-wrap { flex:1; min-width:200px; }
.pal-output { display:flex; flex-direction:column; gap:1.5rem; margin-bottom:1.5rem; }
.pal-section {}
.pal-section-title { font-weight:700; font-size:0.85rem; text-transform:uppercase; letter-spacing:.05em; color:var(--bw-subtle); margin-bottom:0.75rem; }
.pal-row { display:flex; gap:0.5rem; flex-wrap:wrap; }
.pal-swatch { border-radius:10px; flex:1; min-width:90px; max-width:160px; height:110px; position:relative; overflow:hidden; cursor:pointer; transition:.15s; box-shadow:0 1px 4px rgba(0,0,0,.12); }
.pal-swatch:hover { transform:translateY(-2px); box-shadow:0 4px 12px rgba(0,0,0,.2); }
.pal-swatch-body { position:absolute; bottom:0; left:0; right:0; padding:0.4rem 0.5rem; background:rgba(0,0,0,.15); backdrop-filter:blur(4px); display:flex; flex-direction:column; gap:1px; font-size:0.72rem; }
.pal-swatch-hex  { font-weight:700; font-family:monospace; font-size:0.8rem; }
.pal-swatch-rgb, .pal-swatch-hsl { opacity:.8; }
.pal-swatch-copy { background:none; border:none; cursor:pointer; align-self:flex-end; padding:2px 4px; border-radius:4px; font-size:0.85rem; transition:.15s; }
.pal-swatch-copy:hover { opacity:.7; }
.pal-export-row { display:flex; align-items:center; gap:0.75rem; flex-wrap:wrap; }
.pal-export-btn { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); color:var(--bw-text); border-radius:8px; padding:0.4rem 0.9rem; font-size:0.82rem; cursor:pointer; display:flex; align-items:center; gap:0.4rem; transition:.15s; }
.pal-export-btn:hover { border-color:var(--bw-accent); color:var(--bw-accent); }

/* =========================================================================
   NUMERAL CONVERTER (CSS supplement for missing classes from prior session)
   ========================================================================= */
.numeral-converter-block {}
.nc-input-section { display:flex; gap:1rem; flex-wrap:wrap; margin-bottom:1.5rem; align-items:flex-end; }
.nc-input-row { display:flex; gap:1rem; flex-wrap:wrap; width:100%; align-items:flex-end; }
.nc-input-wrap, .nc-mode-wrap { flex:1; min-width:180px; }
.nc-results-grid { display:grid; grid-template-columns:repeat(auto-fill, minmax(260px,1fr)); gap:1rem; }
.nc-card { background:var(--bw-surface-2); border:1.5px solid var(--bw-border); border-radius:12px; overflow:hidden; }
.nc-card-head { display:flex; align-items:center; gap:0.5rem; padding:0.6rem 0.75rem; background:var(--bw-surface-3); border-bottom:1px solid var(--bw-border); overflow:hidden; }
.nc-card-icon { color:var(--bw-accent); flex-shrink:0; }
.nc-card-title { font-weight:700; font-size:0.875rem; flex:1; min-width:0; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.nc-copy { background:none; border:none; color:var(--bw-subtle); cursor:pointer; padding:3px 6px; border-radius:5px; transition:.15s; flex-shrink:0; }
.nc-copy:hover { color:var(--bw-accent); }
.nc-card-body { padding:0.75rem; font-family:monospace; word-break:break-word; font-size:0.95rem; min-height:2.5rem; line-height:1.5; }
.nc-roman, .nc-chinese { font-size:1.1rem; font-weight:600; }
.nc-base-note { font-size:0.72rem; color:var(--bw-subtle); margin-top:0.4rem; }
.nc-input-hint { font-size:0.78rem; color:var(--bw-subtle); margin-top:0.35rem; }

.bw-alert { padding:0.75rem 1rem; border-radius:8px; border:1px solid var(--bw-line); color:var(--bw-text); font-size:0.9rem; }
.bw-alert-error { background:rgba(239,68,68,0.1); border-color:rgba(239,68,68,0.35); }
.bw-alert-success { background:rgba(34,197,94,0.1); border-color:rgba(34,197,94,0.35); }
.mayan-row { display:flex; gap:0.4rem; justify-content:center; }
.mayan-pos  { display:flex; flex-direction:column; align-items:center; border:1px solid var(--bw-border); border-radius:6px; padding:4px 8px; min-width:40px; }
.mayan-glyph .mayan-dots { display:flex; gap:3px; justify-content:center; }
.mayan-bar  { border-bottom:3px solid var(--bw-accent); width:26px; margin:2px auto; }
.mayan-zero { font-size:1.2rem; }
.mayan-posval { font-size:0.65rem; color:var(--bw-subtle); }
.baby-row   { display:flex; gap:0.4rem; justify-content:center; flex-wrap:wrap; }
.baby-pos   { display:flex; flex-direction:column; align-items:center; border:1px solid var(--bw-border); border-radius:6px; padding:4px 8px; min-width:44px; }
.baby-glyph { font-size:1.1rem; }
.baby-zero  { font-size:1.4rem; }
.baby-posval{ font-size:0.65rem; color:var(--bw-subtle); }