/**
 * BC TRANSPORTER — DESIGN SYSTEM v2.0
 * Unified, Performant, Accessible Transport Theme
 * 
 * Performance optimizations:
 * - Zero external font dependencies in CSS (loaded via HTML link)
 * - CSS containment for dynamic content
 * - Reduced animations for performance
 * - Optimized box-shadow usage
 * - Semantic and minimal
 */

/* ─── CSS RESET & BASE ─── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-size-adjust: 100%;
  font-size: 16px;
}

@media (max-width: 768px) { html { font-size: 15px; } }
@media (max-width: 480px) { html { font-size: 14px; } }

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary, #f8fafc);
  background-color: var(--bg-deep, #020617);
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

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

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

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

ul, ol, menu {
  list-style: none;
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--accent-blue, #06b6d4);
  outline-offset: 2px;
  border-radius: var(--radius-sm, 4px);
}

/* Modern scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  transition: background 0.3s ease;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.2); }

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Smooth scrolling for anchor links */
html { scroll-behavior: smooth; }

/* ─── DESIGN TOKENS ─── */
:root {
  /* Color Palette - Unified for all transport modes */
  --bg-deep:      #020617;
  --bg-base:      #0b112a;
  --bg-elevated:  #0f172a;
  --bg-surface:   #131c31;
  --bg-glass:     rgba(15, 23, 42, 0.55);
  --glass-border: rgba(255, 255, 255, 0.12);
  --glass-shine:  rgba(255, 255, 255, 0.05);

  --text-primary:   #f8fafc;
  --text-secondary: #94a3b8;
  --text-tertiary:  #64748b;
  --text-dim:       #475569;

  /* Mode-specific accents */
  --accent-train: #3b82f6; /* Blue */
  --accent-train-glow: rgba(59, 130, 246, 0.45);
  --accent-plane: #10b981; /* Green */
  --accent-plane-glow: rgba(16, 185, 129, 0.45);
  --accent-bus:   #f59e0b; /* Orange */
  --accent-bus-glow: rgba(245, 158, 11, 0.45);
  --accent-purple: #8b5cf6;
  --accent-purple-glow: rgba(139, 92, 246, 0.45);

  /* Generic accent (default: blue) */
  --accent:       var(--accent-train);
  --accent-glow:  var(--accent-train-glow);

  /* Status colors */
  --status-online:    #22c55e;
  --status-warning:   #f59e0b;
  --status-error:     #ef4444;
  --status-offline:   #ef4444;
  --status-loading:   #f59e0b;

  /* Typography */
  --font-sans:   'Inter', system-ui, sans-serif;
  --font-display: 'Syne', var(--font-sans);
  --font-mono:   'JetBrains Mono', 'Fira Code', monospace;

  --text-xs:   0.75rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.25rem;
  --text-5xl:  3rem;
  --text-6xl:  3.75rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radii */
  --radius-sm:    6px;
  --radius-md:    12px;
  --radius-lg:    16px;
  --radius-xl:    24px;
  --radius-2xl:   32px;
  --radius-3xl:   48px;
  --radius-pill:  9999px;
  --radius-card:  20px;

  /* Shadows */
  --shadow-xs:    0 1px 2px rgba(0,0,0,0.2);
  --shadow-sm:    0 2px 8px rgba(0,0,0,0.25);
  --shadow-md:    0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg:    0 10px 30px rgba(0,0,0,0.4);
  --shadow-xl:    0 20px 50px rgba(0,0,0,0.5);
  --shadow-2xl:   0 30px 60px rgba(0,0,0,0.6);

  /* Layout */
  --header-height: 72px;
  --container-max: 1280px;
  --container-wide: 1400px;

  /* Transitions */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 400ms cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Animation timing */
  --duration-fast:   150ms;
  --duration-base:   300ms;
  --duration-slow:   500ms;
}

/* ─── ANIMATIONS ─── */
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in-down {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

@keyframes pulse-glow {
  0%, 100% { opacity: 0.4; transform: scale(1); }
  50%      { opacity: 0.8; transform: scale(1.05); }
}

@keyframes pulse-dot {
  0%   { transform: scale(0.95); opacity: 0.6; }
  50%  { transform: scale(1.2);  opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.6; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

@keyframes shimmer {
  0%   { left: -150%; }
  100% { left: 150%; }
}

@keyframes rotate-slow {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes bg-gradient-shift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Animation utilities */
.animate-fade-in      { animation: fade-in 0.6s ease-out forwards; }
.animate-fade-in-up   { animation: fade-in-up 0.6s ease-out forwards; }
.animate-fade-in-down { animation: fade-in-down 0.4s ease-out forwards; }
.animate-scale-in     { animation: scale-in 0.4s ease-out forwards; }
.animate-pulse-glow   { animation: pulse-glow 8s infinite alternate; }
.animate-float        { animation: float 4s ease-in-out infinite; }
.animate-rotate-slow  { animation: rotate-slow 20s linear infinite; }

.stagger-children > * {
  opacity: 0;
  animation: fade-in-up 0.5s ease-out forwards;
}
.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.10s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.20s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.30s; }
.stagger-children > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-children > *:nth-child(8) { animation-delay: 0.40s; }
.stagger-children > *:nth-child(9) { animation-delay: 0.45s; }

/* ─── LAYOUT UTILITIES ─── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

.container-wide { max-width: var(--container-wide); }
.container-narrow { max-width: 720px; }

.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-gap { display: flex; align-items: center; gap: var(--space-4); }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Spacing */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }

/* Text utilities */
.text-xs   { font-size: var(--text-xs); }
.text-sm   { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg   { font-size: var(--text-lg); }
.text-xl   { font-size: var(--text-xl); }
.text-2xl  { font-size: var(--text-2xl); }
.text-3xl  { font-size: var(--text-3xl); }
.text-4xl  { font-size: var(--text-4xl); }
.text-5xl  { font-size: var(--text-5xl); }

.font-sans    { font-family: var(--font-sans); }
.font-display { font-family: var(--font-display); }
.font-mono    { font-family: var(--font-mono); }

.font-light    { font-weight: 300; }
.font-normal   { font-weight: 400; }
.font-medium   { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }
.font-extrabold{ font-weight: 800; }

.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary  { color: var(--text-tertiary); }

.text-center    { text-align: center; }
.text-left      { text-align: left; }
.text-right     { text-align: right; }

.text-gradient-blue {
  background: linear-gradient(135deg, #fff 20%, var(--accent-train) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.text-gradient-green {
  background: linear-gradient(135deg, #fff 20%, var(--accent-plane) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.text-gradient-orange {
  background: linear-gradient(135deg, #fff 20%, var(--accent-bus) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ─── BACKGROUNDS ─── */
.bg-deep { background-color: var(--bg-deep); }

/* Hero gradient backgrounds (mode-specific) */
.bg-hero-train {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 30%, var(--accent-train-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--accent-purple-glow) 0%, transparent 50%);
  background-color: var(--bg-deep);
  animation: pulse-glow 10s infinite alternate;
  pointer-events: none;
}

.bg-hero-plane {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 30%, var(--accent-plane-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--accent-purple-glow) 0%, transparent 50%);
  background-color: var(--bg-deep);
  animation: pulse-glow 10s infinite alternate;
  pointer-events: none;
}

.bg-hero-bus {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 30%, var(--accent-bus-glow) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--accent-purple-glow) 0%, transparent 50%);
  background-color: var(--bg-deep);
  animation: pulse-glow 10s infinite alternate;
  pointer-events: none;
}

/* Glassmorphism backgrounds */
.bg-glass {
  background: var(--bg-glass);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
}

.bg-glass-card {
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
}

/* ─── HEADER / NAVIGATION ─── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: var(--space-3) 0;
  background: rgba(10, 15, 30, 0.65);
  backdrop-filter: blur(30px) saturate(200%);
  -webkit-backdrop-filter: blur(30px) saturate(200%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  transition: all 400ms cubic-bezier(0.4, 0, 0.2, 1);
}

.site-header.scrolled {
  background: rgba(5, 8, 15, 0.9);
  padding: var(--space-2) 0;
  border-bottom-color: rgba(0, 255, 170, 0.15);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.site-header.scrolled .brand-tagline,
.site-header.scrolled .nav-link {
  opacity: 0.85;
}

.site-header-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

/* Brand logo */
.brand {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0;
  text-decoration: none;
  transition: transform 200ms ease;
}

.brand-link:hover { transform: scale(1.03); }

.brand-bc {
  background: linear-gradient(90deg,
    #FF6B35 0%,
    #F4A261 25%,
    #90BE6D 60%,
    #43AA8B 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 800;
}

.brand-dot { color: #00A4EF; font-weight: 800; margin: 0 -0.02em; }
.brand-t   { color: #FFFFFF; font-weight: 800; text-shadow: 0 0 12px rgba(255,255,255,0.15); }

.brand-tagline {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: #00ffaa;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  border: 1px solid rgba(0, 255, 170, 0.25);
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.1), rgba(0, 255, 170, 0.08));
  box-shadow: inset 0 0 8px rgba(0, 255, 170, 0.06), 0 0 10px rgba(0, 255, 170, 0.08);
  white-space: nowrap;
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  position: relative;
  padding: var(--space-2) var(--space-4);
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-weight: 600;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  overflow: hidden;
  white-space: nowrap;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  width: 0; height: 2px;
  background: linear-gradient(90deg, transparent, #00ffaa, transparent);
  transition: all 0.4s ease;
  transform: translateX(-50%);
  box-shadow: 0 0 10px #00ffaa;
}

.nav-link:hover {
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  transform: translateY(-1px);
}
.nav-link:hover::after { width: 75%; }
.nav-link i {
  font-size: 1.1rem;
  color: #3b82f6;
  transition: var(--transition-base);
}
.nav-link:hover i {
  color: #00ffaa;
  transform: translateY(-2px) scale(1.1);
  text-shadow: 0 0 12px #00ffaa;
}
.nav-link.active {
  background: linear-gradient(145deg, rgba(59, 130, 246, 0.12), rgba(0, 255, 170, 0.06));
  border-color: rgba(0, 255, 170, 0.18);
  color: #fff;
  box-shadow: 0 0 16px rgba(0, 255, 170, 0.08), inset 0 0 8px rgba(0, 255, 170, 0.04);
}
.nav-link.active::after {
  width: 100%;
  background: linear-gradient(90deg, #3b82f6, #00ffaa);
}
.nav-link.active i { color: #00ffaa; text-shadow: 0 0 8px #00ffaa; }

/* Mode-specific nav accents */
.nav-train i { color: var(--accent-train); }
.nav-train:hover i,
.nav-train.active i { color: var(--accent-train); }
.nav-planes i { color: var(--accent-plane); }
.nav-planes:hover i,
.nav-planes.active i { color: var(--accent-plane); }
.nav-bus i { color: var(--accent-bus); }
.nav-bus:hover i,
.nav-bus.active i { color: var(--accent-bus); }

/* Mobile toggle */
.mobile-toggle {
  display: none;
  color: #00ffaa;
  font-size: 1.5rem;
  background: rgba(0, 255, 170, 0.08);
  border: 1px solid rgba(0, 255, 170, 0.2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-base);
  backdrop-filter: blur(10px);
}

.mobile-toggle:hover {
  background: rgba(0, 255, 170, 0.15);
  box-shadow: 0 0 16px rgba(0, 255, 170, 0.2);
  transform: scale(1.05);
}

/* Mobile overlay */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5, 8, 15, 0.92);
  backdrop-filter: blur(35px) saturate(200%);
  -webkit-backdrop-filter: blur(35px) saturate(200%);
  z-index: 1001;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  width: min(90%, 400px);
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition-base);
}

.mobile-nav-link:hover,
.mobile-nav-link:active {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.15), rgba(0, 255, 170, 0.1));
  border-color: rgba(0, 255, 170, 0.25);
  color: #fff;
  transform: translateX(8px);
  box-shadow: 0 10px 25px rgba(0, 255, 170, 0.12);
}

.mobile-nav-link i {
  color: #3b82f6;
  transition: var(--transition-base);
}

.mobile-nav-link:hover i {
  color: #00ffaa;
  text-shadow: 0 0 12px #00ffaa;
  transform: translateX(4px) scale(1.1);
}

/* Header responsive */
@media (max-width: 1100px) {
  .brand-tagline { display: none; }
}

@media (max-width: 968px) {
  .main-nav { display: none; }
  .mobile-toggle { display: block; }
  .site-header-inner { padding: 0 var(--space-4); }
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  backdrop-filter: blur(10px);
}

.btn:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

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

.btn-sm  { padding: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.btn-lg  { padding: var(--space-4) var(--space-8); font-size: var(--text-lg); }

/* Primary buttons */
.btn-primary {
  background: linear-gradient(135deg, var(--accent-train), #2563eb);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}
.btn-primary:hover {
  box-shadow: 0 0 25px var(--accent-train-glow);
  background: linear-gradient(135deg, #22d3ee, var(--accent-train));
}

.btn-green {
  background: linear-gradient(135deg, var(--accent-plane), #059669);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}
.btn-green:hover { box-shadow: 0 0 25px var(--accent-plane-glow); }

.btn-orange {
  background: linear-gradient(135deg, var(--accent-bus), #d97706);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}
.btn-orange:hover { box-shadow: 0 0 25px var(--accent-bus-glow); }

.btn-purple {
  background: linear-gradient(135deg, var(--accent-purple), #7c3aed);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}
.btn-purple:hover { box-shadow: 0 0 25px var(--accent-purple-glow); }

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

/* ─── CARDS ─── */
.card {
  background: var(--bg-glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: var(--space-6);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
}

.card-accent-train:hover  { border-color: var(--accent-train); box-shadow: 0 0 25px var(--accent-train-glow); }
.card-accent-plane:hover  { border-color: var(--accent-plane); box-shadow: 0 0 25px var(--accent-plane-glow); }
.card-accent-bus:hover    { border-color: var(--accent-bus);   box-shadow: 0 0 25px var(--accent-bus-glow); }
.card-accent-purple:hover { border-color: var(--accent-purple); box-shadow: 0 0 25px var(--accent-purple-glow); }

.card-body { position: relative; z-index: 1; }

/* Service cards (homepage grid) */
.service-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-card);
  padding: 2.5rem 2rem;
  text-decoration: none;
  color: inherit;
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 380px;
  box-sizing: border-box;
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; height: 100%;
  background: linear-gradient(180deg, rgba(255,255,255,0.04) 0%, transparent 100%);
  pointer-events: none;
}

.service-card:hover {
  transform: translateY(-10px) scale(1.02);
  background: rgba(30, 41, 59, 0.6);
  border-color: rgba(255, 255, 255, 0.25);
}

.service-card i {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  display: block;
  opacity: 0.9;
  transition: all 0.5s ease;
}

.service-card:hover i {
  transform: scale(1.1);
  filter: drop-shadow(0 0 10px currentColor);
}

.icon-train { color: var(--accent-train); }
.icon-plane { color: var(--accent-plane); }
.icon-bus   { color: var(--accent-bus); }

.service-card h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.service-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.hud-mini {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 1.5rem;
  display: block;
  letter-spacing: 0.05em;
}

/* ─── INPUTS ─── */
.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  transition: var(--transition-base);
}

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

.input:focus {
  outline: none;
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-train);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15), 0 0 12px rgba(59, 130, 246, 0.2);
}

.select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  padding-right: var(--space-10);
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  appearance: none;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--text-tertiary) 50%),
    linear-gradient(135deg, var(--text-tertiary) 50%, transparent 50%);
  background-position: calc(100% - 1rem) calc(50% - 2px), calc(100% - 0.7rem) calc(50% - 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  transition: var(--transition-base);
}

.select:focus {
  outline: none;
  border-color: var(--accent-train);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.select option {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

/* ─── BADGES ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.badge-blue {
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.25);
  color: var(--accent-train);
}

.badge-green {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--accent-plane);
}

.badge-orange {
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid rgba(245, 158, 11, 0.25);
  color: var(--accent-bus);
}

.badge-purple {
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.25);
  color: var(--accent-purple);
}

.badge-online  { color: var(--status-online); background: rgba(34, 197, 94, 0.12); border-color: rgba(34, 197, 94, 0.25); }
.badge-warning  { color: var(--status-warning); background: rgba(245, 158, 11, 0.12); border-color: rgba(245, 158, 11, 0.25); }
.badge-error { color: var(--status-error); background: rgba(239, 68, 68, 0.12); border-color: rgba(239, 68, 68, 0.25); }

/* Status indicators */
.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: var(--space-2);
  box-shadow: 0 0 8px currentColor;
}

.status-online  { background-color: var(--status-online); }
.status-warning  { background-color: var(--status-warning); }
.status-error { background-color: var(--status-error); }
.status-loading { background-color: var(--status-loading); animation: pulse-dot 2s infinite; }

/* ─── SEPARATOR ─── */
.separator {
  width: 50px;
  height: 2px;
  background: var(--accent-train);
  border-radius: 999px;
  margin: var(--space-4) auto;
  box-shadow: 0 0 8px var(--accent-train-glow);
}

.separator-accent-train  { background: var(--accent-train); box-shadow: 0 0 8px var(--accent-train-glow); }
.separator-accent-plane  { background: var(--accent-plane); box-shadow: 0 0 8px var(--accent-plane-glow); }
.separator-accent-bus    { background: var(--accent-bus);   box-shadow: 0 0 8px var(--accent-bus-glow); }
.separator-accent-purple { background: var(--accent-purple); box-shadow: 0 0 8px var(--accent-purple-glow); }

/* ─── HERO SECTION (Unified) ─── */
.hero {
  padding: var(--space-20) var(--space-4);
  text-align: center;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  text-transform: uppercase;
  letter-spacing: -0.5px;
  text-shadow: 0 0 40px rgba(0, 0, 0, 0.4);
}

.hero-title-blue   { background: linear-gradient(135deg, #fff 20%, var(--accent-train) 80%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-title-green  { background: linear-gradient(135deg, #fff 20%, var(--accent-plane) 80%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.hero-title-orange  { background: linear-gradient(135deg, #fff 20%, var(--accent-bus) 80%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.hero-subtitle {
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto var(--space-8);
  font-size: var(--text-lg);
  line-height: 1.6;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--space-6);
  transition: var(--transition-base);
}

.hero-badge-blue   { background: rgba(59, 130, 246, 0.1); border: 1px solid rgba(59, 130, 246, 0.3); color: var(--accent-train); box-shadow: 0 0 15px rgba(59, 130, 246, 0.2); }
.hero-badge-green  { background: rgba(16, 185, 129, 0.1); border: 1px solid rgba(16, 185, 129, 0.3); color: var(--accent-plane); box-shadow: 0 0 15px rgba(16, 185, 129, 0.2); }
.hero-badge-orange  { background: rgba(245, 158, 11, 0.1); border: 1px solid rgba(245, 158, 11, 0.3); color: var(--accent-bus); box-shadow: 0 0 15px rgba(245, 158, 11, 0.2); }

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: currentColor;
  border-radius: 50%;
  box-shadow: 0 0 8px currentColor;
  animation: pulse-dot 2s infinite;
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--space-8);
}

/* ─── SERVICES GRID ─── */
.services-grid {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: var(--space-8) var(--space-4);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  justify-items: center;
}

/* ─── FEATURES SECTION ─── */
.features-section {
  padding: var(--space-12) var(--space-4);
  max-width: var(--container-wide);
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--space-4);
  letter-spacing: -0.02em;
}

.section-title-blue   { background: linear-gradient(135deg, #fff 30%, var(--accent-train) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.section-title-green  { background: linear-gradient(135deg, #fff 30%, var(--accent-plane) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.section-title-orange  { background: linear-gradient(135deg, #fff 30%, var(--accent-bus) 80%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }

.section-subtitle {
  color: var(--text-secondary);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
}

.feature-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  transition: var(--transition-slow);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,255,255,0.03) 0%, transparent 100%);
  pointer-events: none;
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: var(--shadow-xl);
}

.feature-icon-wrapper {
  width: 60px;
  height: 60px;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-6);
  color: var(--accent-train);
  font-size: 1.5rem;
  border: 1px solid rgba(59, 130, 246, 0.2);
  transition: var(--transition-base);
}

.feature-card:hover .feature-icon-wrapper {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 0 20px var(--accent-train-glow);
}

.feature-title {
  font-size: 1.35rem;
  margin-bottom: var(--space-3);
  font-weight: 700;
}

.feature-description {
  color: var(--text-secondary);
  font-size: var(--text-base);
  line-height: 1.6;
}

/* ─── CTA SECTION ─── */
.cta-section {
  padding: var(--space-16) var(--space-4);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(to top, var(--bg-deep), transparent 50%);
  z-index: -1;
}

.cta-box {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.12), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-3xl);
  padding: var(--space-12) var(--space-6);
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.08) 0%, transparent 60%);
  animation: rotate-slow;
  z-index: 0;
}

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

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--space-4);
  background: linear-gradient(135deg, #fff 50%, var(--accent-train) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.cta-subtitle {
  color: var(--text-secondary);
  font-size: var(--text-lg);
  max-width: 600px;
  margin: 0 auto var(--space-8);
  line-height: 1.6;
}

.cta-actions { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }

/* ─── FOOTER ─── */
.site-footer {
  padding: var(--space-16) var(--space-6);
  text-align: center;
  border-top: 1px solid var(--glass-border);
  margin-top: auto;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: var(--space-4);
  background: linear-gradient(90deg, #fff, var(--text-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.footer-desc {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin: var(--space-8) 0;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
  font-size: 0.95rem;
  font-weight: 600;
}

.footer-link:hover {
  color: var(--accent-bus);
  text-shadow: 0 0 8px var(--accent-bus-glow);
}

.footer-legal {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  max-width: 800px;
  margin: var(--space-8) auto 0;
  line-height: 1.6;
  border-top: 1px solid rgba(255,255,255,0.04);
  padding-top: var(--space-4);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .hero { padding: 5rem var(--space-4); }
  .hero-title { font-size: 2.5rem; margin-top: 1rem; }
  .services-grid { grid-template-columns: 1fr; padding: var(--space-6) var(--space-3); gap: var(--space-4); }
  .site-footer { padding: var(--space-12) var(--space-4); }
  .footer-legal { text-align: left; }
  .cta-box { padding: var(--space-8) var(--space-4); }
  .features-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hero { padding: 3.5rem var(--space-3); }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: var(--text-base); }
  .hero-actions { flex-direction: column; align-items: center; gap: var(--space-3); }
  .service-card { padding: 1.5rem; max-width: 100%; border-radius: var(--radius-lg); }
  .service-card i { font-size: 2rem; margin-bottom: 1rem; }
  .service-card h2 { font-size: 1.1rem; margin-bottom: 0.6rem; }
  .service-card p { font-size: 0.85rem; line-height: 1.4; }
  .hud-mini { font-size: 0.65rem; margin-top: 1rem; }
  .features-section { padding: var(--space-8) var(--space-4); }
  .cta-section { padding: var(--space-10) var(--space-4); }
  .cta-box { padding: var(--space-6) var(--space-3); }
  .feature-card { padding: 1.5rem; }
  .features-grid { gap: 1.5rem; }
  .site-footer { padding: var(--space-8) var(--space-3); }
  .footer-links { gap: var(--space-4); }
  .cta-actions { flex-direction: column; }
  .btn { font-size: 0.9rem; padding: var(--space-3) var(--space-6); }
}

@media (max-width: 480px) {
  .hero { padding: 2rem var(--space-2); }
  .hero-title { font-size: 1.7rem; margin-top: 0.8rem; }
  .hero-subtitle { font-size: var(--text-sm); }
  .service-card { padding: 1rem; border-radius: 14px; }
  .service-card i { font-size: 1.4rem; margin-bottom: 0.6rem; }
  .service-card h2 { font-size: 1rem; }
  .service-card p { font-size: 0.75rem; }
  .services-grid, .features-grid { gap: var(--space-3); }
  .cta-title { font-size: 1.75rem; }
  .cta-box { padding: var(--space-5) var(--space-2); }
  .footer-brand { font-size: 1.25rem; }
}

/* ─── CONTENT CONTAINMENT ─── */
.isolate {
  contain: layout style;
}

.isolate-paint {
  contain: layout style paint;
}

/* Lazy loaded images */
.lazy {
  opacity: 0;
  transition: opacity 0.3s ease;
}
.lazy.loaded { opacity: 1; }

/* Skeleton loader */
.skeleton {
  background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
  background-size: 200% 100%;
  animation: shimmer 2s infinite;
  border-radius: var(--radius-md);
}