/* ==================== 猪咪工具箱 - Main Stylesheet ==================== */

/* CSS Custom Properties */
:root {
  --primary: #FF6B9D;
  --primary-light: #FF8FB4;
  --primary-dark: #E8557F;
  --secondary: #FF8C42;
  --secondary-light: #FFA366;
  --accent: #4ECDC4;
  --accent-light: #7EDDD6;
  --bg: #FFF5F7;
  --bg-card: #FFFFFF;
  --bg-panel: #FFFFFF;
  --bg-input: #FFF0F3;
  --text: #2D2D2D;
  --text-secondary: #666666;
  --text-muted: #999999;
  --border: #FFE0E6;
  --border-light: #FFF0F3;
  --shadow: 0 2px 12px rgba(255,107,157,0.1);
  --shadow-hover: 0 6px 24px rgba(255,107,157,0.18);
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-body: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --header-height: 64px;
  --sidebar-width: 220px;
  --success: #4CAF50;
  --warning: #FF9800;
  --error: #F44336;
  --info: #2196F3;
}

[data-theme="dark"] {
  --primary: #FF8FB4;
  --primary-light: #FFB0C9;
  --primary-dark: #FF6B9D;
  --bg: #1A1A2E;
  --bg-card: #252540;
  --bg-panel: #252540;
  --bg-input: #2D2D4A;
  --text: #E8E8E8;
  --text-secondary: #B0B0B0;
  --text-muted: #808080;
  --border: #3D3D5C;
  --border-light: #2D2D4A;
  --shadow: 0 2px 12px rgba(0,0,0,0.3);
  --shadow-hover: 0 6px 24px rgba(0,0,0,0.4);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ==================== Header ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 1000;
  box-shadow: var(--shadow);
  transition: background var(--transition), border var(--transition);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  cursor: pointer;
}

.header-logo img {
  height: 36px;
  width: auto;
}

.header-logo .site-name {
  font-size: 1.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
}

.header-search {
  flex: 1;
  max-width: 480px;
  margin: 0 24px;
  position: relative;
}

.header-search input {
  width: 100%;
  height: 40px;
  padding: 0 16px 0 40px;
  border: 2px solid var(--border);
  border-radius: 20px;
  background: var(--bg-input);
  color: var(--text);
  font-size: 0.9rem;
  font-family: var(--font-body);
  outline: none;
  transition: border var(--transition), background var(--transition);
}

.header-search input:focus {
  border-color: var(--primary);
}

.header-search input::placeholder {
  color: var(--text-muted);
}

.header-search .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 1rem;
  pointer-events: none;
}

.header-search .search-clear {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  border: none;
  border-radius: 50%;
  background: none;
  color: var(--text-muted);
  font-size: 0.7rem;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
  opacity: 0.6;
}

.header-search .search-clear:hover {
  color: var(--primary);
  opacity: 1;
}

.header-search .search-clear.visible {
  display: flex;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.theme-toggle {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform 0.2s;
}

.theme-toggle:hover {
  background: var(--primary);
  color: #fff;
  transform: rotate(20deg);
}

.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  background: none;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ==================== Main Layout ==================== */
.main {
  display: flex;
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height));
}

/* ==================== Sidebar ==================== */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  position: fixed;
  top: var(--header-height);
  bottom: 0;
  left: 0;
  overflow-y: auto;
  z-index: 900;
  transition: transform var(--transition), background var(--transition);
}

.sidebar-title {
  padding: 0 20px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

.category-list {
  list-style: none;
}

.category-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all var(--transition);
  border-left: 3px solid transparent;
}

.category-item:hover {
  background: var(--bg-input);
  color: var(--primary);
}

.category-item.active {
  background: linear-gradient(90deg, rgba(255,107,157,0.1), transparent);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 600;
}

.category-item .cat-icon {
  font-size: 1.2rem;
  width: 24px;
  text-align: center;
}

.category-count {
  margin-left: auto;
  background: var(--bg-input);
  color: var(--text-muted);
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 10px;
}

/* ==================== Content Area ==================== */
.content {
  flex: 1;
  margin-left: var(--sidebar-width);
  padding: 24px;
  max-width: 1200px;
}

.content-header {
  margin-bottom: 24px;
}

.content-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.content-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ==================== Tool Cards Grid ==================== */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.tool-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.4s ease both;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.tool-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.tool-card:hover::before {
  transform: scaleX(1);
}

.tool-card .card-icon {
  font-size: 2rem;
  margin-bottom: 12px;
  display: block;
}

.tool-card .card-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.tool-card .card-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.tool-card .card-uses {
  font-size: 0.7rem;
  color: var(--primary);
  margin-top: 8px;
  font-weight: 500;
}

.tool-card.hidden {
  display: none;
}

/* Animation delay for staggered entrance */
.tool-card:nth-child(1) { animation-delay: 0.02s; }
.tool-card:nth-child(2) { animation-delay: 0.04s; }
.tool-card:nth-child(3) { animation-delay: 0.06s; }
.tool-card:nth-child(4) { animation-delay: 0.08s; }
.tool-card:nth-child(5) { animation-delay: 0.10s; }
.tool-card:nth-child(6) { animation-delay: 0.12s; }
.tool-card:nth-child(7) { animation-delay: 0.14s; }
.tool-card:nth-child(8) { animation-delay: 0.16s; }
.tool-card:nth-child(9) { animation-delay: 0.18s; }
.tool-card:nth-child(10) { animation-delay: 0.20s; }
.tool-card:nth-child(11) { animation-delay: 0.22s; }
.tool-card:nth-child(12) { animation-delay: 0.24s; }

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==================== Tool Panel ==================== */
.tool-panel-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1100;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.tool-panel-overlay.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.tool-panel {
  position: fixed;
  top: var(--header-height);
  right: 0;
  bottom: 0;
  width: min(680px, 100vw);
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  z-index: 1200;
  overflow-y: auto;
  transform: translateX(100%);
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.35s;
  box-shadow: -4px 0 24px rgba(0,0,0,0.1);
}

.tool-panel.active {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
}

.panel-header {
  position: sticky;
  top: 0;
  background: var(--bg-panel);
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
}

.panel-back {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.panel-back:hover {
  background: var(--primary);
  color: #fff;
}

.panel-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.panel-title .panel-icon {
  margin-right: 8px;
}

.panel-body {
  padding: 24px;
}

/* ==================== Tool Interface Components ==================== */
.tool-section {
  margin-bottom: 20px;
}

.tool-section label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.tool-input,
.tool-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border var(--transition), background var(--transition);
  resize: vertical;
}

.tool-input:focus,
.tool-textarea:focus {
  border-color: var(--primary);
}

.tool-textarea {
  min-height: 120px;
  line-height: 1.6;
}

.tool-input::placeholder,
.tool-textarea::placeholder {
  color: var(--text-muted);
}

.tool-btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.tool-btn {
  padding: 8px 18px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tool-btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}

.tool-btn-primary:hover {
  box-shadow: 0 4px 12px rgba(255,107,157,0.3);
  transform: translateY(-1px);
}

.tool-btn-secondary {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
}

.tool-btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tool-btn-accent {
  background: var(--accent);
  color: #fff;
}

.tool-btn-accent:hover {
  background: var(--accent-light);
}

.tool-btn-small {
  padding: 5px 12px;
  font-size: 0.8rem;
}

.tool-output {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 400px;
  overflow-y: auto;
  position: relative;
}

.tool-output.error {
  border-color: var(--error);
  color: var(--error);
}

.tool-output.success {
  border-color: var(--success);
}

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 4px 10px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  cursor: pointer;
  opacity: 0;
  transition: opacity var(--transition);
  font-family: var(--font-body);
}

.tool-output:hover .copy-btn,
.copy-btn.visible {
  opacity: 1;
}

.copy-btn.copied {
  background: var(--success);
}

/* Range slider */
.tool-range {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  margin: 8px 0;
}

.tool-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(255,107,157,0.3);
}

/* Checkbox / radio */
.tool-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
  font-size: 0.85rem;
  color: var(--text);
  cursor: pointer;
}

.tool-checkbox input[type="checkbox"],
.tool-checkbox input[type="radio"] {
  accent-color: var(--primary);
  width: 16px;
  height: 16px;
}

/* Select */
.tool-select {
  padding: 8px 12px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: border var(--transition);
}

.tool-select:focus {
  border-color: var(--primary);
}

/* Tabs within tools */
.tool-tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 16px;
}

.tool-tab {
  padding: 8px 16px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition);
}

.tool-tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tool-tab:hover {
  color: var(--primary);
}

/* Strength bar */
.strength-bar {
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  margin: 8px 0;
  overflow: hidden;
}

.strength-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.4s, background 0.4s;
}

.strength-weak { background: var(--error); }
.strength-fair { background: var(--warning); }
.strength-good { background: var(--accent); }
.strength-strong { background: var(--success); }

/* Color picker */
.color-picker-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.color-picker-wrap input[type="color"] {
  width: 50px;
  height: 40px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 2px;
}

/* Split pane */
.split-pane {
  display: flex;
  gap: 16px;
  min-height: 300px;
}

.split-pane > div {
  flex: 1;
}

.split-pane .tool-textarea {
  min-height: 280px;
}

/* Gauge */
.gauge {
  width: 160px;
  height: 80px;
  position: relative;
  margin: 16px auto;
  overflow: hidden;
}

.gauge-bg {
  width: 160px;
  height: 80px;
  border-radius: 80px 80px 0 0;
  background: var(--border);
  position: absolute;
}

.gauge-fill {
  width: 160px;
  height: 80px;
  border-radius: 80px 80px 0 0;
  background: var(--primary);
  position: absolute;
  transform-origin: bottom center;
  transition: transform 0.6s ease;
}

.gauge-label {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

/* Result cards */
.result-card {
  background: linear-gradient(135deg, rgba(255,107,157,0.08), rgba(255,140,66,0.08));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin: 12px 0;
}

.result-card .result-value {
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.result-card .result-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 12px 0;
}

/* Notification */
.notification {
  position: fixed;
  top: 80px;
  right: 24px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 9999;
  transform: translateX(120%);
  transition: transform 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.notification.show {
  transform: translateX(0);
}

.notification.success { background: var(--success); }
.notification.error { background: var(--error); }
.notification.info { background: var(--info); }

/* Back to top */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 800;
  box-shadow: 0 4px 12px rgba(255,107,157,0.3);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(255,107,157,0.4);
}

/* QR canvas */
.qr-canvas {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin: 12px 0;
}

/* Image preview */
.image-preview {
  max-width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin: 8px 0;
}

.image-compare {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.image-compare > div {
  flex: 1;
  text-align: center;
}

.image-compare img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

/* File upload area */
.file-upload {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-muted);
}

.file-upload:hover {
  border-color: var(--primary);
  background: rgba(255,107,157,0.05);
}

.file-upload.dragover {
  border-color: var(--primary);
  background: rgba(255,107,157,0.1);
}

.file-upload input[type="file"] {
  display: none;
}

/* ==================== Footer ==================== */
.footer {
  margin-left: var(--sidebar-width);
  padding: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}

/* ==================== Mobile Responsive ==================== */
@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }

  .hamburger {
    display: flex;
  }

  .header-logo .site-name {
    display: none;
  }

  .header-search {
    margin: 0 12px;
  }

  .sidebar {
    transform: translateX(-100%);
    width: 260px;
    box-shadow: 4px 0 24px rgba(0,0,0,0.15);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.4);
    z-index: 899;
  }

  .sidebar-overlay.active {
    display: block;
  }

  .content {
    margin-left: 0;
    padding: 16px;
  }

  .footer {
    margin-left: 0;
  }

  .tools-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 12px;
  }

  .tool-card {
    padding: 14px;
  }

  .tool-card .card-icon {
    font-size: 1.6rem;
  }

  .tool-panel {
    width: 100vw;
  }

  .split-pane {
    flex-direction: column;
  }

  .panel-body {
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .tools-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .tool-card {
    padding: 12px;
  }

  .tool-card .card-desc {
    display: none;
  }

  .header-search input {
    font-size: 0.85rem;
  }

  .tool-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  /* Mobile Bottom Bar */
  .mobile-bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    z-index: 900;
    align-items: center;
    justify-content: space-around;
    padding-bottom: env(safe-area-inset-bottom, 0);
  }

  .mobile-bottom-bar button {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    border: none;
    background: none;
    color: var(--text-secondary);
    font-size: 0.65rem;
    font-family: var(--font-body);
    cursor: pointer;
    padding: 8px 0;
    transition: color 0.2s;
  }

  .mobile-bottom-bar button:active {
    color: var(--primary);
  }

  .mobile-bottom-bar .bar-icon {
    font-size: 1.3rem;
  }

  .footer {
    margin-left: 0;
    padding-bottom: 72px;
  }

  .back-to-top {
    bottom: 72px;
  }
}

/* ==================== Desktop: hide mobile bottom bar ==================== */
.mobile-bottom-bar {
  display: none;
}

/* ==================== Scrollbar ====================
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-light);
}

/* ==================== No Results ==================== */
.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.no-results .no-results-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.no-results p {
  font-size: 1rem;
}

/* ==================== Highlight matches ==================== */
.highlight {
  background: rgba(255,220,0,0.35);
  padding: 0 2px;
  border-radius: 2px;
  font-weight: 600;
}

/* ==================== Star Button (Favorites) ==================== */
.star-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 36px;
  height: 36px;
  border: none;
  background: rgba(255,255,255,0.85);
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity var(--transition), transform 0.2s;
  z-index: 5;
  line-height: 1;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  color: #bbb;
}

[data-theme="dark"] .star-btn {
  background: rgba(37,37,64,0.85);
}

.star-btn:hover {
  opacity: 1;
  transform: scale(1.15);
}

.star-btn.active {
  opacity: 1;
  color: #FFD700;
}

/* ==================== Language Toggle ==================== */
.lang-toggle {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: var(--bg-input);
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform 0.2s;
}

.lang-toggle:hover {
  background: var(--accent);
  color: #fff;
  transform: scale(1.1);
}

/* ==================== OCR Progress Bar ==================== */
.ocr-progress {
  width: 100%;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin: 12px 0;
}

.ocr-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 4px;
  transition: width 0.3s ease;
  width: 0%;
}

.ocr-progress-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 4px;
}

/* ==================== Temp Email Inbox ==================== */
.temp-email-inbox {
  max-height: 400px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-top: 12px;
}

.temp-email-inbox .inbox-item {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background var(--transition);
}

.temp-email-inbox .inbox-item:hover {
  background: var(--bg-input);
}

.temp-email-inbox .inbox-item:last-child {
  border-bottom: none;
}

.temp-email-inbox .inbox-from {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
}

.temp-email-inbox .inbox-subject {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.temp-email-inbox .inbox-date {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.temp-email-inbox .inbox-empty {
  padding: 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ==================== PDF Multi Upload ==================== */
.pdf-upload-multi {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  color: var(--text-muted);
}

.pdf-upload-multi:hover {
  border-color: var(--primary);
  background: rgba(255,107,157,0.05);
}

.pdf-upload-multi.dragover {
  border-color: var(--primary);
  background: rgba(255,107,157,0.1);
}

.pdf-upload-multi input[type="file"] {
  display: none;
}

.pdf-upload-multi .file-list {
  margin-top: 12px;
  text-align: left;
}

.pdf-upload-multi .file-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  background: var(--bg-input);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  font-size: 0.85rem;
}

/* ==================== Markdown Preview ==================== */
.md-preview {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  min-height: 280px;
  line-height: 1.8;
  overflow-y: auto;
}

.md-preview h1, .md-preview h2, .md-preview h3 {
  margin: 16px 0 8px;
  color: var(--text);
}

.md-preview h1 { font-size: 1.5rem; border-bottom: 2px solid var(--border); padding-bottom: 8px; }
.md-preview h2 { font-size: 1.3rem; }
.md-preview h3 { font-size: 1.1rem; }

.md-preview code {
  background: var(--bg-input);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.85em;
}

.md-preview pre {
  background: var(--bg-input);
  padding: 12px;
  border-radius: var(--radius-sm);
  overflow-x: auto;
  margin: 8px 0;
}

.md-preview pre code {
  background: none;
  padding: 0;
}

.md-preview blockquote {
  border-left: 3px solid var(--primary);
  padding-left: 12px;
  margin: 8px 0;
  color: var(--text-secondary);
}

.md-preview ul, .md-preview ol {
  padding-left: 24px;
  margin: 8px 0;
}

.md-preview a {
  color: var(--primary);
  text-decoration: underline;
}

.md-preview hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 16px 0;
}

/* Match highlight for regex */
.regex-match {
  background: rgba(78,205,196,0.3);
  border-radius: 2px;
  padding: 0 1px;
}