/* ==========================================================================
   SHSU-COM Curriculum Dashboard — Official Stylesheet
   Crafted with clinical precision & high readability for med students.
   ========================================================================== */

:root {
  /* Dark Theme (Default) */
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-tertiary: #21262d;
  --bg-card: rgba(22, 27, 34, 0.85);
  --bg-card-hover: rgba(33, 38, 45, 0.95);
  --border-subtle: #30363d;
  --border-focus: #58a6ff;
  
  --text-primary: #f0f6fc;
  --text-secondary: #8b949e;
  --text-muted: #6e7681;
  
  /* Signature SHSU Add-on Orange */
  --accent: #E86A28;
  --accent-hover: #ff7a30;
  --accent-glow: rgba(232, 106, 40, 0.25);
  --accent-light: rgba(232, 106, 40, 0.12);
  
  --brand-blue: #388bfd;
  --brand-teal: #39c5bb;
  --brand-green: #3fb950;
  --brand-purple: #bc8cff;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 36px rgba(0, 0, 0, 0.55);
  
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --border-subtle: #e2e8f0;
  --border-focus: #0284c7;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --accent: #d95a18;
  --accent-hover: #c2490d;
  --accent-glow: rgba(217, 90, 24, 0.2);
  --accent-light: rgba(217, 90, 24, 0.08);
  
  --brand-blue: #0284c7;
  --brand-teal: #0d9488;
  --brand-green: #16a34a;
  --brand-purple: #9333ea;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 14px 30px rgba(0, 0, 0, 0.1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

a {
  color: inherit;
  text-decoration: none;
}

code, .addon-number, .inline-code {
  font-family: 'JetBrains Mono', Consolas, monospace;
}

/* ==========================================================================
   Announcement Banner
   ========================================================================== */

.top-banner {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 8px 16px;
  font-size: 0.825rem;
  color: var(--text-secondary);
  text-align: center;
}

.banner-content {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.badge-pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--brand-green);
  box-shadow: 0 0 0 0 rgba(63, 185, 80, 0.7);
  animation: pulse 2.2s infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(63, 185, 80, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(63, 185, 80, 0); }
}

/* ==========================================================================
   Navbar
   ========================================================================== */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-subtle);
  transition: var(--transition);
}

.nav-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.brand-icon svg {
  width: 100%;
  height: 100%;
}

.brand-text span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a.active {
  color: var(--accent);
  font-weight: 700;
}

.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 1rem;
  transition: var(--transition);
}

.theme-btn:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}

/* Mobile Hamburger Toggle */
.hamburger-btn {
  display: none;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  width: 38px;
  height: 38px;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-around;
  align-items: center;
  transition: var(--transition);
}

.hamburger-line {
  width: 20px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger-btn.active .hamburger-line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.hamburger-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active .hamburger-line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile Drawer */
.mobile-drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 150;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.mobile-drawer-overlay.active {
  display: block;
  opacity: 1;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -300px;
  width: 280px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-lg);
  z-index: 160;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: right 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-drawer.active {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.mobile-drawer-links a {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.mobile-drawer-links a:hover,
.mobile-drawer-links a.active {
  background: var(--accent-light);
  color: var(--accent);
}

.mobile-drawer-footer {
  padding-top: 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  text-align: center;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--accent-glow);
  color: #ffffff;
}

.btn-secondary {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-focus);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

.btn-outline:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-full {
  width: 100%;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  padding: 70px 24px 40px;
  text-align: center;
  position: relative;
  background: radial-gradient(circle at 50% 15%, var(--accent-light) 0%, transparent 60%);
}

.hero-container {
  max-width: 880px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 9999px;
  background: var(--accent-light);
  border: 1px solid rgba(232, 106, 40, 0.3);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--accent);
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.035em;
  margin-bottom: 20px;
}

.hero-title em {
  font-style: normal;
  color: var(--accent);
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 36px;
  line-height: 1.65;
}

/* Code Copy Box */
.code-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 18px 24px;
  max-width: 520px;
  margin: 0 auto 30px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.code-meta {
  text-align: left;
}

.code-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--accent);
}

.code-sub {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.code-action {
  display: flex;
  align-items: center;
  gap: 12px;
}

.addon-number {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-primary);
  background: var(--bg-tertiary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.btn-copy {
  padding: 9px 16px;
  font-size: 0.9rem;
}

.hero-cta {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.hero-specs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.spec-check {
  color: var(--brand-green);
  font-weight: 800;
}

/* ==========================================================================
   FEATURE #3: Bespoke Anki Application Mockup
   Featherweight, crisp, authentic desktop preview.
   ========================================================================== */

.mockup-container {
  max-width: 1040px;
  margin: 20px auto 70px;
  padding: 0 20px;
}

.anki-window {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  text-align: left;
}

/* Window Title Bar */
.window-titlebar {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
  color: var(--text-muted);
}

.window-dots {
  display: flex;
  gap: 7px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #27c93f; }

.window-title {
  font-weight: 600;
  color: var(--text-secondary);
}

.window-badge {
  font-size: 0.72rem;
  padding: 2px 8px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 4px;
  font-weight: 600;
}

/* Anki Native Nav Toolbar */
.anki-nav {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-subtle);
  padding: 8px 20px;
  display: flex;
  gap: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.anki-nav-item.active {
  color: var(--text-primary);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 4px;
}

/* Mockup Layout: Decks on Left, Dashboard Dock on Right */
.anki-workspace {
  display: grid;
  grid-template-columns: 1.1fr 1.35fr;
  min-height: 420px;
}

.anki-deck-browser {
  padding: 24px;
  border-right: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

.deck-browser-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}

.deck-tree-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.deck-tree-item.highlight-deck {
  background: var(--accent-light);
  border-left: 3px solid var(--accent);
  font-weight: 700;
}

.deck-counts {
  display: flex;
  gap: 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.825rem;
}

.count-new { color: var(--brand-blue); }
.count-learn { color: #f87171; }
.count-due { color: var(--brand-green); }

/* The Add-on Dashboard Dock */
.anki-dashboard-dock {
  background: var(--bg-tertiary);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.dock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.dock-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.dock-actions {
  display: flex;
  gap: 8px;
}

.dock-btn {
  font-size: 0.75rem;
  padding: 4px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Course Tabs */
.dock-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
}

.dock-tab {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

.dock-tab.active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* Lecture Checklist */
.dock-lectures {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.dock-lecture-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.85rem;
}

.dock-lecture-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dock-checkbox {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--accent);
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
}

.dock-checkbox.empty {
  background: transparent;
  border-color: var(--border-subtle);
}

.dock-badge {
  font-size: 0.72rem;
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-tertiary);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--text-muted);
}

.dock-footer {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   FEATURE #3: "How Cards Move" 3-Step Visual Flow Diagram
   ========================================================================== */

.flow-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 60px 24px;
}

.flow-container {
  max-width: 1140px;
  margin: 0 auto;
}

.flow-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  margin-top: 40px;
}

.flow-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  position: relative;
  text-align: left;
  transition: var(--transition);
}

.flow-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.flow-step-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--accent-light);
  color: var(--accent);
  margin-bottom: 12px;
}

.flow-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.flow-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 14px;
}

.flow-card-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  padding: 4px 10px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
}

.flow-arrow {
  color: var(--accent);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   Sections Common
   ========================================================================== */

.section {
  max-width: 1160px;
  margin: 0 auto;
  padding: 60px 24px;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 8px;
}

.section-header h1,
.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* Page Intro Header (for subpages) */
.page-header {
  padding: 60px 24px 30px;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
  background: radial-gradient(circle at 50% 10%, var(--accent-light) 0%, transparent 60%);
}

/* ==========================================================================
   Quick Start / Steps
   ========================================================================== */

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  position: relative;
  transition: var(--transition);
}

.step-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
}

.step-card.highlight {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-light) 0%, var(--bg-card) 60%);
}

.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-subtle);
  color: var(--accent);
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  margin-bottom: 16px;
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.step-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.step-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-blue);
}

.step-link:hover {
  text-decoration: underline;
}

.step-mini-copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.mini-label {
  font-size: 0.85rem;
}

.btn-copy-mini {
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
}

.step-tip {
  font-size: 0.825rem;
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--brand-teal);
}

.callout-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 24px;
}

.callout-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}

.callout-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.callout-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Features Grid
   ========================================================================== */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.features-grid.full-page {
  grid-template-columns: repeat(2, 1fr);
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  transition: var(--transition);
}

.feature-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
}

.feature-icon {
  font-size: 1.8rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-card em {
  font-style: normal;
  color: var(--accent);
  font-weight: 600;
}

/* ==========================================================================
   Changelog & Card Fixes
   ========================================================================== */

.feed-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  margin-bottom: 24px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-green);
}

.warning-badge-pill {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 9999px;
  background: rgba(63, 185, 80, 0.12);
  color: var(--brand-green);
  border: 1px solid rgba(63, 185, 80, 0.25);
}

.warning-badge-pill.has-warnings {
  background: rgba(232, 106, 40, 0.15);
  color: var(--accent);
  border-color: rgba(232, 106, 40, 0.3);
}

/* Category Filter Bar */
.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.filter-btn {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent);
}

.filter-btn.active {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

.fixes-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.fix-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: var(--transition);
}

.fix-item:hover {
  border-color: var(--border-focus);
}

.fix-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.fix-tag {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}

.fix-tag.anatomy { background: rgba(56, 139, 253, 0.15); color: #58a6ff; }
.fix-tag.extras { background: rgba(188, 140, 255, 0.15); color: #d2a8ff; }
.fix-tag.omm { background: rgba(232, 106, 40, 0.15); color: var(--accent); }
.fix-tag.pharma { background: rgba(57, 197, 187, 0.15); color: var(--brand-teal); }

.fix-date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.fix-status {
  margin-left: auto;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--brand-green);
}

.fix-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.fix-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ==========================================================================
   SHSU Class Deck Card Comparison Previews
   ========================================================================== */

.anki-card-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.anki-card-wrapper:hover {
  border-color: var(--border-default);
  box-shadow: var(--shadow-md);
}

.anki-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 12px;
}

.anki-meta-left {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.notetype-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 800;
  border-radius: 4px;
  padding: 3px 8px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  letter-spacing: 0.03em;
}

.notetype-zach {
  background: rgba(88, 166, 255, 0.14);
  color: #58a6ff;
  border: 1px solid rgba(88, 166, 255, 0.35);
}

.notetype-omm {
  background: rgba(94, 189, 131, 0.14);
  color: #5ebd83;
  border: 1px solid rgba(94, 189, 131, 0.35);
}

.course-badge {
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 4px;
  padding: 3px 8px;
  background: rgba(232, 106, 40, 0.12);
  color: var(--accent);
  border: 1px solid rgba(232, 106, 40, 0.3);
  letter-spacing: 0.02em;
}

.anki-tag-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--accent);
  background: rgba(232, 106, 40, 0.1);
  border: 1px solid rgba(232, 106, 40, 0.25);
  border-radius: 4px;
  padding: 3px 8px;
}

.anki-guid-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.74rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 3px 7px;
}

.anki-date-badge {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.anki-status-badge {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brand-green);
  background: rgba(63, 185, 80, 0.1);
  border: 1px solid rgba(63, 185, 80, 0.25);
  border-radius: 4px;
  padding: 3px 8px;
}

.anki-card-wrapper h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.anki-card-wrapper p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
  line-height: 1.55;
}

/* ==========================================================================
   AUTHENTIC ANKI FLASHCARD ENGINE (Exact SHSU Card Appearance)
   ========================================================================== */

/* Side-by-Side Anki Card Grid */
.anki-card-comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 18px 0;
}

@media (max-width: 820px) {
  .anki-card-comparison {
    grid-template-columns: 1fr;
  }
}

/* Column Wrapper with Subdued State Label */
.anki-comparison-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.anki-col-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pill-badge {
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 800;
  display: inline-block;
}

.pill-before {
  background: rgba(248, 113, 113, 0.15);
  color: #f87171;
  border: 1px solid rgba(248, 113, 113, 0.35);
}

.pill-after {
  background: rgba(63, 185, 80, 0.15);
  color: #3fb950;
  border: 1px solid rgba(63, 185, 80, 0.35);
}

.col-caption {
  color: var(--text-muted);
  font-weight: 600;
}

/* The Authentic Anki Flashcard Surface */
.anki-actual-card {
  background-color: #272828 !important;
  color: #d7d7d7 !important;
  font-family: Arial Greek, Arial, sans-serif;
  text-align: center;
  border-radius: 8px;
  padding: 24px 22px 18px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
  border: 1px solid #3d3e40;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  min-height: 280px;
  box-sizing: border-box;
  transition: background-color 0.2s ease, color 0.2s ease;
  overflow: hidden;
}

/* Light Mode (Follows Theme) */
body.light-theme .anki-actual-card {
  background-color: #f7f6f5 !important;
  color: #111111 !important;
  border: 1px solid #d1cfce;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

/* Micro Yield Bar */
.anki-actual-card .micro-yield-bar {
  margin: 0 0 16px 0;
  display: flex;
  justify-content: center;
  gap: 5px;
  line-height: 1;
}

.anki-actual-card .micro-btn {
  background: transparent;
  border: none;
  padding: 2px 6px;
  font-size: 9.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  border-radius: 3px;
  color: #aaa;
  opacity: 0.35;
  font-family: Arial, sans-serif;
}

body.light-theme .anki-actual-card .micro-btn {
  color: #666;
}

.anki-actual-card .micro-btn.active {
  opacity: 1 !important;
  color: #fff !important;
}

.anki-actual-card .micro-btn.yield-high.active { background-color: #c62828 !important; }
.anki-actual-card .micro-btn.yield-avg.active { background-color: #ef6c00 !important; }
.anki-actual-card .micro-btn.yield-low.active { background-color: #2e7d32 !important; }

/* Question / Cloze Field (#text) */
.anki-actual-card .card-text-field {
  font-size: 1.25rem;
  line-height: 1.55;
  margin: 6px 0 16px;
  word-break: break-word;
}

/* Cloze Highlighting */
.anki-actual-card .cloze {
  font-weight: bold;
}

/* Night Mode Cloze: Iconic #4297F9 Blue */
.anki-actual-card .cloze {
  color: #4297F9 !important;
}

body.light-theme .anki-actual-card .cloze {
  color: #0000ff !important;
}

/* Inline Diff Deletions & Additions */
.diff-del {
  color: #ff6b6b !important;
  text-decoration: line-through !important;
  background: rgba(244, 67, 54, 0.2) !important;
  padding: 1px 5px;
  border-radius: 3px;
  font-weight: 600;
}

.diff-ins {
  color: #4caf50 !important;
  text-decoration: none !important;
  background: rgba(76, 175, 80, 0.22) !important;
  padding: 1px 5px;
  border-radius: 3px;
  font-weight: bold;
}

/* Anki Answer Divider (<hr id="answer">) */
.anki-actual-card hr.answer-divider {
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  margin: 14px auto;
  width: 100%;
  opacity: 0.7;
}

body.light-theme .anki-actual-card hr.answer-divider {
  border-top: 1px solid rgba(0, 0, 0, 0.15);
}

/* Extra Field (#extra) */
.anki-actual-card .card-extra-field {
  font-style: italic;
  font-size: 1.02rem;
  color: #d580ff !important;
  line-height: 1.5;
  margin: 10px 0 16px;
  word-break: break-word;
}

body.light-theme .anki-actual-card .card-extra-field {
  color: #000080 !important;
}

/* Resource Hint Buttons (.button-general) */
.anki-actual-card .anki-resource-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin: 16px 0 10px;
}

.anki-actual-card .button-general {
  outline: 0;
  border-radius: 3px;
  border: 1px solid #525253 !important;
  padding: 4px 8px;
  text-align: center;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  background-color: #424242;
  color: #bfbfbf !important;
  font-family: Arial, sans-serif;
  line-height: 1.3;
}

body.light-theme .anki-actual-card .button-general {
  background-color: #e5e5e7;
  border-color: #c4c4c6 !important;
  color: #333333 !important;
}

/* Tags Container (#tags-container) with Colorful <kbd> */
.anki-actual-card .tags-container {
  margin-top: auto;
  padding-top: 14px;
  line-height: 1.6;
  font-size: 10px;
}

.anki-actual-card .tags-container kbd {
  display: inline-block;
  letter-spacing: .1px;
  font-weight: bold;
  font-size: 10px !important;
  font-family: Arial, sans-serif;
  padding: 2px 6px !important;
  margin: 2px !important;
  border-radius: 4px;
  border-width: 1.5px !important;
  border-style: solid;
  background-color: rgba(30, 30, 30, 0.85) !important;
  opacity: 0.9;
  vertical-align: middle !important;
  line-height: normal !important;
}

body.light-theme .anki-actual-card .tags-container kbd {
  background-color: rgba(255, 255, 255, 0.9) !important;
  opacity: 0.85;
}

.anki-actual-card .tags-container kbd:nth-of-type(1n+0) { border-color: #F44336; color: #F44336 !important; }
.anki-actual-card .tags-container kbd:nth-of-type(2n+0) { border-color: #9C27B0; color: #9C27B0 !important; }
.anki-actual-card .tags-container kbd:nth-of-type(3n+0) { border-color: #3F51B5; color: #3F51B5 !important; }
.anki-actual-card .tags-container kbd:nth-of-type(4n+0) { border-color: #03A9F4; color: #03A9F4 !important; }
.anki-actual-card .tags-container kbd:nth-of-type(5n+0) { border-color: #009688; color: #009688 !important; }
.anki-actual-card .tags-container kbd:nth-of-type(6n+0) { border-color: #C0CA33; color: #C0CA33 !important; }
.anki-actual-card .tags-container kbd:nth-of-type(7n+0) { border-color: #FF9800; color: #FF9800 !important; }
.anki-actual-card .tags-container kbd:nth-of-type(8n+0) { border-color: #FF5722; color: #FF5722 !important; }

/* Authentic Anki Flashcard Images */
.anki-actual-card img {
  max-width: 100%;
  max-height: 360px;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 6px;
  margin: 10px auto;
  display: block;
  cursor: zoom-in;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.4);
  background-color: rgba(0, 0, 0, 0.2);
}

.anki-actual-card img:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.6);
}

body.light-theme .anki-actual-card img {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.12);
  background-color: rgba(0, 0, 0, 0.04);
}

/* Broken / Missing Image Placeholder */
.card-missing-image {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: rgba(248, 113, 113, 0.08);
  border: 1.5px dashed rgba(248, 113, 113, 0.45);
  border-radius: 6px;
  padding: 18px 14px;
  margin: 12px auto;
  max-width: 380px;
  color: #f87171;
  font-size: 11.5px;
  font-style: normal;
}

.card-missing-image .missing-icon {
  font-size: 22px;
  line-height: 1;
}

.card-missing-image .missing-title {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.card-missing-image .missing-detail {
  font-size: 10.5px;
  color: #a8a8a8;
  font-family: monospace;
}

/* Image Lightbox Modal */
.card-img-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99999;
  align-items: center;
  justify-content: center;
}

.card-img-modal.active {
  display: flex;
}

.card-img-modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
}

.card-img-modal-content {
  position: relative;
  z-index: 1;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: modalZoomIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalZoomIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.card-img-modal-content img {
  max-width: 85vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  background-color: #1a1a1a;
}

.card-img-modal-caption {
  margin-top: 12px;
  font-size: 13px;
  color: #e0e0e0;
  font-weight: 600;
  text-align: center;
  background: rgba(0, 0, 0, 0.6);
  padding: 4px 14px;
  border-radius: 20px;
}

.card-img-modal-close {
  position: absolute;
  top: -36px;
  right: 0;
  background: none;
  border: none;
  color: #ffffff;
  font-size: 32px;
  cursor: pointer;
  line-height: 1;
  opacity: 0.8;
  transition: opacity 0.15s;
}

.card-img-modal-close:hover {
  opacity: 1;
}

/* Rationale Callout Box */
.fix-rationale {
  font-size: 0.825rem;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  margin-top: 12px;
  line-height: 1.55;
}

.fix-rationale strong {
  color: var(--accent);
}

.admin-preview-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  margin-bottom: 16px;
  font-size: 0.825rem;
}

.admin-toggle-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  color: var(--text-secondary);
  font-weight: 600;
}

.badge-hidden {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(232, 106, 40, 0.15);
  color: var(--accent);
  border: 1px solid rgba(232, 106, 40, 0.3);
  margin-left: 8px;
}

/* Notetype Filter Tabs */
.filter-tabs-bar {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.filter-tabs-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-tabs {
  display: inline-flex;
  background: var(--bg-tertiary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  gap: 4px;
}

.filter-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
}

.filter-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.05);
}

.filter-tab.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-subtle);
}

.filter-tab .tab-count {
  font-size: 0.72rem;
  font-weight: 700;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  padding: 1px 6px;
  border-radius: 10px;
  color: var(--text-secondary);
}

.filter-tab.active .tab-count {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

/* ==========================================================================
   Resources & Downloads
   ========================================================================== */

.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.resource-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.resource-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-focus);
}

.resource-badge {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  background: var(--accent-light);
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 14px;
}

.resource-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.resource-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 24px;
  flex-grow: 1;
}

/* Dedicated PDF Viewer Section */
.pdf-viewer-section {
  margin-top: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 30px;
}

.pdf-viewer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.pdf-frame {
  width: 100%;
  height: 650px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: #ffffff;
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 16px;
}

.faq-icon {
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--accent);
  transition: transform 0.2s ease;
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.925rem;
  line-height: 1.6;
}

.faq-item.open .faq-answer {
  max-height: 450px;
  padding-bottom: 20px;
}

.faq-answer ul {
  padding-left: 20px;
  margin: 10px 0;
}

.faq-answer strong {
  color: var(--text-primary);
}

/* ==========================================================================
   Modal & Mobile Responsive Table
   ========================================================================== */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  max-width: 680px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: scale(0.96);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-box {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 24px;
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Table Responsive Container */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.ref-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 500px;
}

.ref-table th, .ref-table td {
  padding: 10px 14px;
  border: 1px solid var(--border-subtle);
  text-align: left;
  font-size: 0.875rem;
}

.ref-table th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 700;
}

/* ==========================================================================
   Floating Back to Top
   ========================================================================== */

.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 42px;
  height: 42px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  z-index: 90;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: var(--transition);
}

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

.back-to-top:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  padding: 60px 24px 30px;
  margin-top: auto;
}

.footer-container {
  max-width: 1180px;
  margin: 0 auto 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.925rem;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.6;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.contact-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.highlight-text {
  color: var(--accent);
}

.footer-bottom {
  max-width: 1180px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
  .steps-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .resources-grid { grid-template-columns: repeat(2, 1fr); }
  .anki-workspace { grid-template-columns: 1fr; }
  .anki-deck-browser { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .flow-grid { grid-template-columns: 1fr; gap: 12px; }
  .flow-arrow { transform: rotate(90deg); padding: 8px 0; }
  .footer-container { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 2.2rem; }
  .nav-links { display: none; }
  .hamburger-btn { display: flex; }
  .features-grid { grid-template-columns: 1fr; }
  .features-grid.full-page { grid-template-columns: 1fr; }
  .resources-grid { grid-template-columns: 1fr; }
  .code-box { flex-direction: column; text-align: center; }
  .code-meta { text-align: center; }
  .pdf-frame { height: 450px; }
  .anki-card-comparison { grid-template-columns: 1fr; }
}