/* ============================================================
   TravelNet — Design System
   Apple SF Pro / SF Mono, system-adaptive light + dark
   ============================================================ */

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

:root {
  /* Apple SF font stack */
  --font-sans: -apple-system, "SF Pro Display", "SF Pro Text", "Helvetica Neue", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Cascadia Code", ui-monospace, monospace;

  /* Spacing scale */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-5:  24px;
  --space-6:  32px;
  --space-7:  48px;
  --space-8:  64px;
  --space-9:  96px;
  --space-10: 128px;

  /* Radius */
  --radius-sm:  8px;
  --radius-md:  14px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-pill: 9999px;

  /* Transitions */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-med:  300ms;
  --duration-slow: 600ms;

  /* Accent — iOS Blue */
  --accent:        #0A84FF;
  --accent-hover:  #0071E3;
  --accent-subtle: rgba(10, 132, 255, 0.12);
  --accent-teal:   #30D158;  /* data/GPS green */
  --accent-orange: #FF9F0A;  /* ML/insights */
  --accent-purple: #BF5AF2;  /* ML secondary */
}

/* --- Light mode ------------------------------------------- */
@media (prefers-color-scheme: light) {
  :root {
    --bg:           #F5F5F7;
    --bg-raised:    #FFFFFF;
    --bg-sunken:    #EBEBED;
    --bg-glass:     rgba(255, 255, 255, 0.72);
    --bg-overlay:   rgba(245, 245, 247, 0.92);

    --text-primary:   #1D1D1F;
    --text-secondary: #6E6E73;
    --text-tertiary:  #AEAEB2;
    --text-on-accent: #FFFFFF;

    --border:         rgba(0, 0, 0, 0.08);
    --border-strong:  rgba(0, 0, 0, 0.16);

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.08), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg:  0 16px 48px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.06);
    --shadow-xl:  0 32px 80px rgba(0,0,0,0.14), 0 8px 24px rgba(0,0,0,0.08);

    --nav-blur-bg: rgba(245, 245, 247, 0.85);
    --hero-glow:   rgba(10, 132, 255, 0.15);
    --noise-opacity: 0.025;
  }
}

/* --- Dark mode -------------------------------------------- */
@media (prefers-color-scheme: dark) {
  :root {
    --bg:           #000000;
    --bg-raised:    #1C1C1E;
    --bg-sunken:    #0A0A0A;
    --bg-glass:     rgba(28, 28, 30, 0.72);
    --bg-overlay:   rgba(0, 0, 0, 0.92);

    --text-primary:   #F5F5F7;
    --text-secondary: #98989D;
    --text-tertiary:  #636366;
    --text-on-accent: #FFFFFF;

    --border:         rgba(255, 255, 255, 0.08);
    --border-strong:  rgba(255, 255, 255, 0.16);

    --shadow-sm:  0 1px 3px rgba(0,0,0,0.4),  0 1px 2px rgba(0,0,0,0.2);
    --shadow-md:  0 4px 16px rgba(0,0,0,0.5), 0 2px 4px rgba(0,0,0,0.3);
    --shadow-lg:  0 16px 48px rgba(0,0,0,0.6), 0 4px 12px rgba(0,0,0,0.4);
    --shadow-xl:  0 32px 80px rgba(0,0,0,0.7), 0 8px 24px rgba(0,0,0,0.5);

    --nav-blur-bg: rgba(0, 0, 0, 0.80);
    --hero-glow:   rgba(10, 132, 255, 0.25);
    --noise-opacity: 0.04;
  }
}

/* --- Document --------------------------------------------- */
html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Subtle noise texture overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: var(--noise-opacity);
  pointer-events: none;
  z-index: 9999;
}

/* --- Navigation ------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 52px;
  background: var(--nav-blur-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
}

.nav-inner {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--text-primary);
}

.nav-logo-wordmark {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text-primary);
}

.nav-logo-wordmark span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-links a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 14px;
  font-weight: 450;
  color: var(--text-secondary);
  transition: color var(--duration-fast), background var(--duration-fast);
  white-space: nowrap;
}

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

.nav-links a.active {
  color: var(--accent);
  background: var(--accent-subtle);
}

.nav-github {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 6px var(--space-3);
  border-radius: var(--radius-sm);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  transition: all var(--duration-fast);
}

.nav-github:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
}

.nav-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-teal);
  display: inline-block;
  box-shadow: 0 0 0 2px rgba(48, 209, 88, 0.3);
}

/* --- Page wrapper ----------------------------------------- */
.page-wrapper {
  padding-top: 52px;
}

/* --- Hero Section ----------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  padding: var(--space-10) var(--space-6);
  overflow: hidden;
}

/* Ambient glow backdrop */
.hero-glow {
  position: absolute;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--hero-glow) 0%, transparent 70%);
  pointer-events: none;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: glowPulse 8s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
  50% { transform: translate(-50%, -50%) scale(1.15); opacity: 0.7; }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: var(--space-5);
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.2s forwards;
}

.hero-title {
  font-size: clamp(48px, 8vw, 88px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.0;
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  position: relative;
  z-index: 1;
  max-width: 900px;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.4s forwards;
}

.hero-title .accent-blue { color: var(--accent); }
.hero-title .accent-teal { color: var(--accent-teal); }

.hero-subtitle {
  font-size: clamp(17px, 2.5vw, 21px);
  font-weight: 400;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.55;
  margin-bottom: var(--space-7);
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.6s forwards;
}

.hero-cta-group {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--space-9);
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 0.8s forwards;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px var(--space-5);
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: white;
  box-shadow: 0 4px 20px rgba(10, 132, 255, 0.35);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(10, 132, 255, 0.45);
}

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

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* --- GPS Map Preview -------------------------------------- */
.hero-map-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 960px;
  opacity: 0;
  animation: fadeUp var(--duration-slow) var(--ease-out) 1.0s forwards;
}

.hero-map-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 16 / 7;
  position: relative;
}

.hero-map-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-map-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Top bar chrome on the map card */
.hero-map-chrome {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 44px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-4);
  gap: var(--space-3);
  z-index: 2;
}

.chrome-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.chrome-dot-red    { background: #FF5F57; }
.chrome-dot-yellow { background: #FFBD2E; }
.chrome-dot-green  { background: #28C840; }

.chrome-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
  margin-left: auto;
}

/* Map coming soon overlay */
.map-coming-soon {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding-top: 44px;
}

.kepler-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent-teal);
  letter-spacing: 0.06em;
}

/* --- Stats Bar -------------------------------------------- */
.stats-bar {
  padding: var(--space-8) var(--space-6);
  position: relative;
}

.stats-bar-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-4);
}

.stat-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: transform var(--duration-fast), box-shadow var(--duration-fast);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  font-size: 20px;
  margin-bottom: var(--space-1);
  display: block;
}

.stat-value {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
}

.stat-value.accent-blue   { color: var(--accent); }
.stat-value.accent-teal   { color: var(--accent-teal); }
.stat-value.accent-orange { color: var(--accent-orange); }

.stat-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 450;
}

.stat-sublabel {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

.stats-sync-info {
  margin-top: var(--space-4);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

/* --- Sections --------------------------------------------- */
section {
  padding: var(--space-9) var(--space-6);
}

.section-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 540px;
  line-height: 1.6;
  margin-bottom: var(--space-7);
}

/* --- Feature Grid ---------------------------------------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-4);
}

.feature-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  transition: all var(--duration-med) var(--ease-out);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--accent)), transparent);
  opacity: 0;
  transition: opacity var(--duration-med);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

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

.feature-card[data-accent="blue"]   { --card-accent: var(--accent); }
.feature-card[data-accent="teal"]   { --card-accent: var(--accent-teal); }
.feature-card[data-accent="orange"] { --card-accent: var(--accent-orange); }
.feature-card[data-accent="purple"] { --card-accent: var(--accent-purple); }

.feature-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: var(--space-1);
}

.feature-icon-wrap[data-bg="blue"]   { background: rgba(10, 132, 255, 0.12); }
.feature-icon-wrap[data-bg="teal"]   { background: rgba(48, 209, 88, 0.12); }
.feature-icon-wrap[data-bg="orange"] { background: rgba(255, 159, 10, 0.12); }
.feature-icon-wrap[data-bg="purple"] { background: rgba(191, 90, 242, 0.12); }

.feature-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.feature-tag {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

/* --- Trip Leg Timeline ------------------------------------ */
.timeline {
  padding: var(--space-9) var(--space-6);
  background: var(--bg-sunken);
}

.timeline-track {
  display: flex;
  align-items: center;
  gap: 0;
  overflow-x: auto;
  padding: var(--space-6) 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.timeline-track::-webkit-scrollbar { display: none; }

.timeline-leg {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  min-width: 120px;
  flex: 1;
  position: relative;
}

.timeline-leg::after {
  content: '';
  position: absolute;
  top: 20px;
  left: 60%;
  right: -40%;
  height: 1px;
  background: var(--border-strong);
}

.timeline-leg:last-child::after { display: none; }

.timeline-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--bg-raised);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  position: relative;
  z-index: 1;
  transition: border-color var(--duration-fast), transform var(--duration-fast);
}

.timeline-leg.active .timeline-dot {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-subtle);
}

.timeline-leg.done .timeline-dot {
  border-color: var(--accent-teal);
  background: rgba(48, 209, 88, 0.08);
}

.timeline-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  text-align: center;
}

.timeline-leg.active .timeline-name {
  color: var(--accent);
  font-weight: 600;
}

/* --- Stack Section ---------------------------------------- */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-3);
}

.stack-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--text-secondary);
  transition: all var(--duration-fast);
}

.stack-item:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}

.stack-item-icon {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  background: var(--accent-subtle);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
  white-space: nowrap;
}

/* --- Coming Soon Page ------------------------------------- */
.coming-soon {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-10) var(--space-6);
  gap: var(--space-5);
}

.coming-soon-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-orange);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.coming-soon h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

.coming-soon p {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 480px;
  line-height: 1.6;
}

/* --- Countdown -------------------------------------------- */
.countdown {
  display: inline-flex;
  gap: var(--space-4);
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-6);
}

.countdown-unit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.countdown-value {
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.countdown-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.countdown-sep {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--text-tertiary);
  align-self: center;
  padding-bottom: 8px;
}

/* --- Footer ----------------------------------------------- */
.footer {
  border-top: 1px solid var(--border);
  padding: var(--space-8) var(--space-6);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-tertiary);
}

.footer-copy a {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer-copy a:hover { color: var(--accent); }

.footer-links {
  display: flex;
  gap: var(--space-4);
  list-style: none;
}

.footer-links a {
  font-size: 13px;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--duration-fast);
}

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

.footer-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

/* --- Utilities -------------------------------------------- */
.mono { font-family: var(--font-mono); }
.text-accent { color: var(--accent); }
.divider { border: none; border-top: 1px solid var(--border); margin: var(--space-8) 0; }

/* --- Animations ------------------------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* Stagger delays for siblings */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }
.reveal:nth-child(6) { transition-delay: 0.5s; }

/* --- Mobile -------------------------------------------- */
@media (max-width: 768px) {
  .nav { padding: 0 var(--space-4); }
  .nav-links { display: none; }

  .hero { padding: var(--space-8) var(--space-4); }
  section { padding: var(--space-7) var(--space-4); }

  .hero-cta-group { flex-direction: column; align-items: center; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}