/* ==========================================================================
   FindMyClass — Professional Blue & White Campus Navigation Stylesheet
   ========================================================================== */

:root {
  /* Color Palette */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-active: #1e40af;
  --primary-light: #eff6ff;
  --primary-50: #f0f7ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  
  --secondary: #0ea5e9;
  --accent: #f59e0b;
  --accent-light: #fef3c7;
  --success: #10b981;
  --success-light: #ecfdf5;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  
  /* Neutral Slate Palette */
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  
  --text-main: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', var(--font-sans);

  /* Shadows */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.09), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
  --shadow-blue: 0 10px 25px -5px rgba(37, 99, 235, 0.25);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-bounce: 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  font-family: var(--font-sans);
  scroll-behavior: smooth;
  font-size: 16px;
  color: var(--text-main);
  background-color: var(--bg-main);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-hover);
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ==========================================================================
   Buttons & UI Elements
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.btn-primary {
  background: var(--primary);
  color: var(--text-white);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary-sm {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-secondary-sm:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-200);
}

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

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

.btn-danger-outline {
  background: transparent;
  color: var(--danger);
  border-color: #fca5a5;
}

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

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-category {
  background: var(--primary-light);
  color: var(--primary-700);
}

.badge-block {
  background: #f1f5f9;
  color: #475569;
  border: 1px solid #e2e8f0;
}

/* ==========================================================================
   Header & Announcement Bar
   ========================================================================== */
.top-announcement-bar {
  background: #0f172a;
  color: #e2e8f0;
  font-size: 0.8rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.announcement-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.api-status-pill {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #f8fafc;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  display: inline-block;
}

.navbar-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-xs);
}

.navbar {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo-pin {
  font-size: 1.6rem;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(37, 99, 235, 0.3));
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, #1e40af, #2563eb);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 0.4rem 0.2rem;
  font-size: 0.95rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.favorites-nav-btn {
  background: #fffbeb;
  color: #b45309;
  border: 1px solid #fde68a;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.favorites-nav-btn:hover {
  background: #fef3c7;
  transform: translateY(-1px);
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform var(--transition-fast);
}

/* ==========================================================================
/* ==========================================================================
   Section Tags & Common Typography
   ========================================================================== */
.section-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary);
  margin-bottom: 0.35rem;
}

/* ==========================================================================
   Hero Section & Interactive Route Visual
   ========================================================================== */
.hero-section {
  position: relative;
  background: linear-gradient(180deg, #f0f7ff 0%, #ffffff 100%);
  padding: 4.5rem 0 3.5rem;
  overflow: hidden;
}

.hero-pattern-bg {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: radial-gradient(#93c5fd 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}

.hero-blob-1 {
  top: -80px;
  left: 5%;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, #bfdbfe 0%, #dbeafe 100%);
}

.hero-blob-2 {
  bottom: -40px;
  right: 5%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, #c7d2fe 0%, #e0e7ff 100%);
}

.hero-container-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 3rem;
  align-items: center;
}

.hero-content {
  text-align: left;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  background: #ffffff;
  border: 1px solid var(--primary-200);
  padding: 0.35rem 1rem;
  border-radius: var(--radius-full);
  color: var(--primary-700);
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.25rem;
  animation: fadeInDown 0.6s ease;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 3.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-main);
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero-subtitle {
  font-size: 1.18rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 2rem;
}

/* Hero Search Box */
.search-box-container {
  width: 100%;
}

.search-form {
  display: flex;
  align-items: center;
  background: #ffffff;
  border-radius: var(--radius-xl);
  padding: 0.5rem 0.5rem 0.5rem 1.25rem;
  box-shadow: 0 12px 30px -6px rgba(37, 99, 235, 0.15), 0 0 0 1px var(--primary-200);
  transition: all var(--transition-fast);
}

.search-form:focus-within {
  box-shadow: 0 15px 35px -5px rgba(37, 99, 235, 0.25), 0 0 0 2px var(--primary);
  transform: translateY(-2px);
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  flex: 1;
  gap: 0.75rem;
  position: relative;
}

.search-icon {
  font-size: 1.2rem;
  color: var(--text-muted);
}

.search-input {
  width: 100%;
  border: none;
  outline: none;
  font-size: 1.05rem;
  color: var(--text-main);
  background: transparent;
  padding: 0.5rem 0;
}

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

.clear-search-btn {
  background: #e2e8f0;
  color: #475569;
  border: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  cursor: pointer;
  margin-right: 0.5rem;
}

.clear-search-btn:hover {
  background: #cbd5e1;
}

.search-btn {
  padding: 0.85rem 1.8rem;
  border-radius: var(--radius-lg);
  font-size: 1rem;
}

.quick-tags {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.quick-tag-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.tag-chip {
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-chip:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-200);
  transform: translateY(-1px);
}

/* Hero Route Visual Card */
.hero-visual-wrapper {
  position: relative;
}

.hero-route-card {
  background: #ffffff;
  border: 1px solid rgba(226, 232, 240, 0.9);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: 0 20px 40px -10px rgba(37, 99, 235, 0.12), 0 1px 3px rgba(0,0,0,0.05);
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hero-route-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 25px 45px -8px rgba(37, 99, 235, 0.18);
}

.route-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.route-live-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: #15803d;
  background: #dcfce7;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.route-time-badge {
  font-size: 0.78rem;
  font-weight: 600;
  color: #475569;
  background: #f1f5f9;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
}

.route-tracker {
  display: flex;
  flex-direction: column;
}

.waypoint-item {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  position: relative;
}

.waypoint-icon-box {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-xs);
}

.origin-box {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
}

.block-box {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
}

.dest-box {
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.waypoint-info {
  flex: 1;
}

.waypoint-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--primary);
}

.waypoint-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 0.1rem 0;
}

.waypoint-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.route-path-segment {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin: 0.45rem 0;
  padding-left: 17px;
}

.route-line {
  width: 2px;
  height: 38px;
  background: #cbd5e1;
  position: relative;
  overflow: hidden;
}

.route-pulse-dot {
  position: absolute;
  top: 0;
  left: -2px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: routePulseMove 2s infinite linear;
}

@keyframes routePulseMove {
  0% { top: 0; opacity: 0; }
  20% { opacity: 1; }
  80% { opacity: 1; }
  100% { top: 100%; opacity: 0; }
}

.route-instruction {
  font-size: 0.78rem;
  color: #64748b;
  font-style: italic;
}

.route-card-footer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.82rem;
  border-radius: var(--radius-md);
}

.btn-subtle {
  background: #f1f5f9;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-subtle:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

/* ==========================================================================
   Campus Statistics Strip
   ========================================================================== */
.stats-section {
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 2.2rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-lg);
  background: #f8fafc;
  border: 1px solid var(--border-color);
  transition: transform var(--transition-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
  background: #ffffff;
  box-shadow: var(--shadow-sm);
}

.stat-icon {
  font-size: 1.8rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-xs);
  flex-shrink: 0;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ==========================================================================
   Quick Access Section
   ========================================================================== */
.quick-access-section {
  padding: 3.5rem 0 2rem;
}

.quick-access-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 1fr));
  gap: 1.25rem;
}

.quick-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.quick-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
}

.quick-card-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 0.85rem;
  transition: transform var(--transition-bounce);
}

.quick-card:hover .quick-card-icon {
  transform: scale(1.1) rotate(-4deg);
}

.quick-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.quick-card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 0.85rem;
  flex: 1;
}

.quick-card-link {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  transition: transform var(--transition-fast);
}

.quick-card:hover .quick-card-link {
  transform: translateX(4px);
}

/* ==========================================================================
   "I'm Lost" Feature Banner
   ========================================================================== */
.lost-banner-section {
  padding: 2.5rem 0;
}

.lost-card {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 55%, #1d4ed8 100%);
  border-radius: var(--radius-xl);
  padding: 2.5rem 3rem;
  color: #ffffff;
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 2rem;
  align-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 40px -10px rgba(15, 23, 42, 0.3);
}

.lost-card-glow {
  position: absolute;
  top: -50px;
  right: -50px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.4) 0%, transparent 70%);
  pointer-events: none;
}

.lost-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.lost-title {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 800;
  margin-bottom: 0.6rem;
  letter-spacing: -0.02em;
}

.lost-desc {
  font-size: 1rem;
  color: #cbd5e1;
  max-width: 580px;
  margin-bottom: 1.5rem;
  line-height: 1.55;
}

.lost-btn {
  background: #ffffff;
  color: #1e3a8a;
  border: none;
  font-weight: 700;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}

.lost-btn:hover {
  background: #f8fafc;
  color: var(--primary-700);
  transform: translateY(-2px) scale(1.02);
}

.lost-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.lost-compass-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-xl);
  padding: 1.75rem 2rem;
  text-align: center;
}

.compass-circle {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  margin: 0 auto 0.75rem;
  animation: compassWobble 4s infinite ease-in-out;
}

@keyframes compassWobble {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(15deg); }
  75% { transform: rotate(-15deg); }
}

.compass-caption {
  font-size: 0.82rem;
  color: #cbd5e1;
  font-weight: 500;
}

/* ==========================================================================
   Campus Interactive Map Section
   ========================================================================== */
.campus-map-section {
  padding: 3rem 0;
}

.campus-map-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.map-schematic-wrapper {
  position: relative;
  width: 100%;
  background: #f8fafc;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
  min-height: 480px;
}

.campus-map-svg {
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.map-walkway {
  fill: none;
  stroke: #cbd5e1;
  stroke-width: 4px;
  stroke-dasharray: 6 6;
}

.map-walkway-pulse {
  fill: none;
  stroke: #3b82f6;
  stroke-width: 3px;
  stroke-dasharray: 8 16;
  animation: walkwayPulse 2.5s linear infinite;
}

@keyframes walkwayPulse {
  to { stroke-dashoffset: -48; }
}

.map-lawn-text {
  font-size: 13px;
  fill: #15803d;
  font-weight: 600;
  font-family: var(--font-sans);
}

.map-buildings-layer {
  position: absolute;
  inset: 0;
}

.map-node {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.75rem;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  z-index: 2;
}

.map-node:hover {
  transform: translateY(-3px) scale(1.03);
  border-color: var(--primary);
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.2);
  background: #ffffff;
}

.map-node.active-building {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

.map-node .node-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.map-node .node-label {
  display: flex;
  flex-direction: column;
}

.map-node .node-label strong {
  font-size: 0.85rem;
  color: var(--text-main);
  line-height: 1.2;
}

.map-node .node-label span {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.map-legend {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  margin-top: 1rem;
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.legend-dot.active { background: var(--primary); }
.legend-dot.line { background: #cbd5e1; border-radius: 2px; width: 14px; height: 3px; }
.legend-dot.hub { background: #15803d; }

/* ==========================================================================
   Wayfinder Modal
   ========================================================================== */
.wayfinder-modal-card {
  max-width: 650px;
}

.wayfinder-form {
  margin-bottom: 1.25rem;
}

.wayfinder-input-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.form-group-wf {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.wf-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}

.wf-select {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: #ffffff;
  font-size: 0.9rem;
  color: var(--text-main);
  outline: none;
  transition: border-color var(--transition-fast);
}

.wf-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.btn-block {
  width: 100%;
}

.wf-route-result {
  background: #f8fafc;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-top: 1rem;
  animation: fadeInDown 0.25s ease;
}

.wf-route-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--border-color);
}

.wf-route-destination {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--primary-700);
}

.wf-route-est {
  font-size: 0.8rem;
  font-weight: 600;
  background: #eff6ff;
  color: var(--primary-700);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.wf-steps-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.wf-step-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.wf-step-num {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

.wf-route-tips {
  margin-top: 0.85rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-color);
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Sections Common Header
   ========================================================================== */
.section-header {
  margin-bottom: 2rem;
}

.section-header.flex-between {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

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

.section-title {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

.results-stats {
  font-size: 0.9rem;
  color: var(--text-muted);
  background: #ffffff;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
}

/* ==========================================================================
   Popular Locations Section
   ========================================================================== */
.popular-section {
  padding: 2.5rem 0;
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
}

.popular-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}

.popular-card {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
  transition: all var(--transition-normal);
}

.popular-card:hover {
  background: #ffffff;
  border-color: var(--primary-200);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.popular-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.popular-info h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.2rem;
}

.popular-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Campus Locations Directory Section
   ========================================================================== */
.locations-section {
  padding: 3.5rem 0 5rem;
}

.category-filters-wrapper {
  margin-bottom: 2rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  scrollbar-width: thin;
}

.category-filters {
  display: flex;
  gap: 0.6rem;
  min-width: max-content;
}

.filter-pill {
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-pill:hover {
  border-color: var(--primary-200);
  background: var(--primary-light);
  color: var(--primary);
}

.filter-pill.active {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* Locations Grid */
.locations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* Location Card */
.location-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.location-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.location-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-200);
}

.location-card:hover::before {
  opacity: 1;
}

.card-top-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.card-favorite-btn {
  background: transparent;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  color: var(--text-light);
  transition: transform var(--transition-fast), color var(--transition-fast);
  padding: 0.2rem;
}

.card-favorite-btn:hover {
  transform: scale(1.2);
}

.card-favorite-btn.favorited {
  color: #f59e0b;
}

.card-title-row {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.card-title-icon {
  font-size: 1.2rem;
  line-height: 1.2;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.3;
}

.card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 1.25rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-details-list {
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-bottom: 1.25rem;
  font-size: 0.82rem;
}

.detail-item {
  display: flex;
  flex-direction: column;
}

.detail-item-label {
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.detail-item-val {
  color: var(--text-main);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  border-top: 1px solid var(--border-light);
  padding-top: 1rem;
}

.card-floor-badge {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

.btn-card-details {
  background: var(--primary-light);
  color: var(--primary-700);
  border: 1px solid var(--primary-200);
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-card-details:hover {
  background: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
}

/* ==========================================================================
   Friendly Empty State
   ========================================================================== */
.empty-state-card {
  text-align: center;
  background: #ffffff;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3.5rem 1.5rem;
  max-width: 540px;
  margin: 2rem auto;
  box-shadow: var(--shadow-sm);
}

.empty-state-icon {
  font-size: 3.2rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.08));
}

.empty-state-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
}

.empty-state-msg {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.empty-state-suggestions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.suggest-btn {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--primary-700);
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.suggest-btn:hover {
  background: var(--primary-light);
  border-color: var(--primary-200);
}

/* ==========================================================================
   How It Works Section
   ========================================================================== */
.how-it-works-section {
  padding: 4.5rem 0;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.step-card {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.2rem 1.75rem;
  position: relative;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-200);
}

.step-num {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-200);
  line-height: 1;
}

.step-num-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid var(--primary-200);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.step-icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.6rem;
}

.step-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Modals
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

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

.modal-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  max-width: 580px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  position: relative;
  transform: scale(0.95) translateY(10px);
  transition: transform var(--transition-bounce);
  display: flex;
  flex-direction: column;
}

.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-subtle);
  color: var(--text-muted);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.modal-close-btn:hover {
  background: #e2e8f0;
  color: var(--text-main);
}

.modal-header {
  padding: 1.75rem 1.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.modal-badge-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.25;
}

.modal-description {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

.modal-body {
  padding: 1.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.details-spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.spec-box {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem;
}

.spec-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.spec-val {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-main);
}

.directions-guide-box {
  background: #eff6ff;
  border: 1px solid var(--primary-200);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.guide-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary-700);
  margin-bottom: 0.35rem;
}

.guide-text {
  font-size: 0.88rem;
  color: #1e3a8a;
  line-height: 1.5;
}

.timing-facilities-box {
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-size: 0.85rem;
}

.facility-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.fac-icon {
  font-size: 1rem;
  line-height: 1.2;
}

.modal-footer {
  padding: 1.25rem 1.75rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-subtle);
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
}


/* ==========================================================================
   Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: #0f172a;
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  animation: slideInUp 0.3s ease;
  transition: opacity 0.3s ease;
}

.toast.toast-success {
  background: #065f46;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .brand-name {
  background: linear-gradient(135deg, #60a5fa, #93c5fd);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-desc {
  font-size: 0.9rem;
  margin-top: 0.85rem;
  max-width: 340px;
  line-height: 1.55;
}

.footer-links h4 {
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-links ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer-links a {
  color: #94a3b8;
  font-size: 0.88rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.75rem;
  font-size: 0.85rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #64748b;
  font-size: 0.8rem;
}

/* ==========================================================================
   Responsive Styles
   ========================================================================== */
@media (max-width: 900px) {
  .hero-title {
    font-size: 2.5rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
  
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .top-announcement-bar {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    display: none;
  }
  
  .nav-links.show {
    display: flex;
  }
  
  .hero-section {
    padding: 3rem 0 2.5rem;
  }
  
  .hero-title {
    font-size: 2.1rem;
  }
  
  .search-form {
    flex-direction: column;
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    gap: 0.5rem;
  }
  
  .search-input-wrapper {
    width: 100%;
    padding: 0 0.5rem;
  }
  
  .search-btn {
    width: 100%;
  }

  .details-spec-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* Animations */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================================================================
   Floating Campus AI Assistant Widget
   ========================================================================== */
.ai-widget-wrapper {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 1500;
}

.ai-widget-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.3rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, #1e40af, #2563eb);
  color: #ffffff;
  border: none;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.ai-widget-btn:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.5);
}

.ai-widget-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.ai-widget-pulse {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 12px;
  height: 12px;
  background: #10b981;
  border-radius: 50%;
  border: 2px solid #ffffff;
}

/* Campus AI Chat Drawer */
.ai-chat-drawer {
  position: fixed;
  bottom: 5.5rem;
  right: 1.5rem;
  width: 380px;
  max-width: calc(100vw - 2rem);
  height: 520px;
  max-height: calc(100vh - 7rem);
  background: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.2), 0 0 0 1px rgba(15, 23, 42, 0.05);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.96);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s;
  z-index: 1500;
}

.ai-chat-drawer.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.ai-chat-header {
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top-left-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-xl);
}

.ai-chat-header-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.ai-avatar {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.ai-chat-title {
  font-size: 0.98rem;
  font-weight: 700;
  margin: 0;
  color: #ffffff;
}

.ai-chat-status {
  font-size: 0.72rem;
  color: #94a3b8;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.ai-chat-header-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.ai-chat-action-btn {
  background: transparent;
  border: none;
  color: #cbd5e1;
  cursor: pointer;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.ai-chat-action-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

/* Chat Body */
.ai-chat-body {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
  background: #f8fafc;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.ai-message {
  display: flex;
  gap: 0.6rem;
  max-width: 90%;
  animation: fadeInDown 0.2s ease;
}

.ai-message-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.ai-message-content {
  background: #ffffff;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
  color: var(--text-main);
  line-height: 1.45;
  box-shadow: var(--shadow-xs);
}

.ai-message-content p {
  margin-bottom: 0.4rem;
}

.ai-message-content p:last-child {
  margin-bottom: 0;
}

.ai-message-user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.ai-message-user .ai-message-content {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  border: none;
  border-bottom-right-radius: var(--radius-xs);
}

.ai-prompt-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.65rem;
}

.ai-chip {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--primary-700);
  padding: 0.35rem 0.65rem;
  border-radius: var(--radius-full);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: left;
}

.ai-chip:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  transform: translateY(-1px);
}

.ai-route-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.65rem 0.8rem;
  margin: 0.5rem 0;
}

.ai-route-steps {
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0.6rem 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.ai-route-step {
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 0.4rem;
}

.ai-route-step-num {
  background: var(--primary);
  color: #ffffff;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

.ai-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--primary);
  color: #ffffff;
  border: none;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-sm);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.3rem;
  transition: background var(--transition-fast);
}

.ai-action-btn:hover {
  background: var(--primary-hover);
}

/* Chat Footer Input */
.ai-chat-footer {
  padding: 0.75rem 1rem;
  background: #ffffff;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.ai-chat-input {
  flex: 1;
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
  background: #f8fafc;
  outline: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.ai-chat-input:focus {
  background: #ffffff;
  border-color: var(--primary);
}

.ai-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.ai-send-btn:hover {
  background: var(--primary-hover);
  transform: scale(1.05);
}

.ai-typing-indicator {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0.4rem 0.2rem;
}

.ai-typing-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #94a3b8;
  animation: typingBounce 1.2s infinite ease-in-out;
}

.ai-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.ai-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(-5px); }
}

@media (max-width: 968px) {
  .hero-container-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  
  .hero-content {
    text-align: center;
  }

  .quick-tags {
    justify-content: center;
  }

  .lost-card {
    grid-template-columns: 1fr;
    padding: 2rem;
    text-align: center;
  }

  .lost-desc {
    margin: 0 auto 1.5rem;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.35rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .wayfinder-input-row {
    grid-template-columns: 1fr;
  }

  .map-schematic-wrapper {
    overflow-x: auto;
  }

  .campus-map-svg {
    min-width: 750px;
  }

  .map-buildings-layer {
    min-width: 750px;
  }
}

@media (max-width: 480px) {
  .ai-chat-drawer {
    right: 0.5rem;
    left: 0.5rem;
    bottom: 5rem;
    width: auto;
    max-width: 100%;
    height: 75vh;
  }

  .route-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .route-card-footer {
    flex-direction: column;
    width: 100%;
  }

  .route-card-footer .btn {
    width: 100%;
  }
}