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

:root {
  --navy: #0058A3;
  --navy-mid: #004f93;
  --navy-light: #1a6fb5;
  --amber: #FFDA1A;
  --amber-dim: #e6c200;
  --amber-pale: #fffbe6;
  --white: #ffffff;
  --gray: #a8c4df;
  --gray-light: #d0e4f5;
  --border: rgba(255,255,255,0.15);
  --border-amber: rgba(255,218,26,0.45);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Pretendard', -apple-system, sans-serif;
  background: var(--navy);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(0,88,163,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: 'DM Mono', monospace;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--gray-light);
}

.nav-links a { color: inherit; text-decoration: none; transition: color 0.2s; }
.nav-links a:hover { color: var(--white); }

.nav-cta {
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.55rem 1.4rem;
  border: 1px solid var(--amber);
  border-radius: 2rem;
  color: var(--amber);
  text-decoration: none;
  transition: all 0.2s;
}
.nav-cta:hover { background: var(--amber); color: var(--navy); }

/* ── LANGUAGE SWITCHER ── */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 1rem;
}

.lang-switcher button {
  font-family: 'Pretendard', -apple-system, sans-serif;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--gray-light);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  transition: color 0.2s;
}

.lang-switcher button:hover {
  color: var(--white);
}

.lang-switcher button.active {
  color: var(--amber);
  font-weight: 500;
}

.lang-divider {
  width: 1px;
  height: 12px;
  background: var(--border);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 8rem 3rem 5rem;
  position: relative;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,218,26,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,218,26,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-bg-glow {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(255,218,26,0.1) 0%, transparent 65%);
  pointer-events: none;
}

.hero-eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 1.8rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.hero-eyebrow::before {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 1px;
  background: var(--amber);
}

h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 1.05;
  font-weight: 400;
  max-width: 900px;
  margin-bottom: 2rem;
  position: relative;
}

h1 em {
  font-style: italic;
  color: var(--amber);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--gray-light);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 3rem;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.btn-primary {
  font-family: 'Pretendard', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.9rem 2rem;
  background: var(--amber);
  color: var(--navy);
  border: none;
  border-radius: 2rem;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.btn-primary:hover { background: #ffe84d; transform: translateY(-1px); }

.btn-ghost {
  font-size: 0.9rem;
  color: var(--gray-light);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s;
}
.btn-ghost:hover { color: var(--white); }

.hero-stats {
  position: absolute;
  right: 3rem;
  bottom: 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-end;
}

.stat-item { text-align: right; }

.stat-num {
  font-family: 'DM Serif Display', serif;
  font-size: 2.4rem;
  color: var(--amber);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--gray);
  letter-spacing: 0.05em;
  margin-top: 0.2rem;
}

.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
  align-self: flex-end;
}

/* ── TICKER BOARD ── */
.board-section {
  padding: 2rem 3rem;
  background: var(--navy-mid);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}

.board-header {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--gray);
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.board-ticker {
  display: flex;
  gap: 2rem;
  animation: ticker 30s linear infinite;
  white-space: nowrap;
  width: max-content;
}

.board-ticker:hover { animation-play-state: paused; }

@keyframes ticker {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  font-family: 'DM Mono', monospace;
  font-size: 0.8rem;
  color: var(--gray-light);
  padding: 0.4rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: 2px;
  flex-shrink: 0;
}

.ticker-item .status { color: var(--amber); font-size: 0.65rem; }
.ticker-item .status.found { color: #5de0a0; }

/* ── SECTIONS ── */
section { padding: 7rem 3rem; }

.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

h2 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.section-sub {
  color: var(--gray-light);
  font-size: 1rem;
  max-width: 480px;
  font-weight: 300;
  line-height: 1.7;
}

/* Flow cards */
.flow-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  margin-top: 4rem;
}

.flow-column-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  color: var(--gray);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border);
}

.flow-steps { display: flex; flex-direction: column; gap: 1rem; }

.flow-step {
  display: flex;
  align-items: flex-start;
  gap: 1.2rem;
  padding: 1.4rem;
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s;
}

.flow-step:hover { border-color: var(--border-amber); }

.step-num {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  color: var(--amber);
  background: rgba(255,218,26,0.12);
  border: 1px solid var(--border-amber);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-content h4 { font-size: 0.95rem; font-weight: 500; margin-bottom: 0.3rem; color: var(--white); }
.step-content p { font-size: 0.82rem; color: var(--gray); line-height: 1.5; }

/* Features */
.features-section {
  background: var(--navy-mid);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 4rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.feature-card {
  padding: 2.2rem;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background 0.2s;
}

.feature-card:hover { background: var(--navy-light); }
.feature-card:nth-child(3n) { border-right: none; }
.feature-card:nth-child(n+4) { border-bottom: none; }

.feature-icon { width: 40px; height: 40px; margin-bottom: 1.2rem; color: var(--amber); }
.feature-card h3 { font-size: 1rem; font-weight: 500; margin-bottom: 0.6rem; }
.feature-card p { font-size: 0.82rem; color: var(--gray); line-height: 1.6; }

/* Airport Partners */
.airport-section {
  text-align: center;
  padding: 7rem 3rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--navy-mid);
}

.airport-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4rem;
  margin-top: 3rem;
}

.airport-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.airport-code {
  font-family: 'DM Mono', monospace;
  font-size: 3.5rem;
  font-weight: 500;
  color: var(--amber);
  letter-spacing: 0.1em;
  line-height: 1;
}

.airport-name {
  font-size: 0.85rem;
  color: var(--gray-light);
  letter-spacing: 0.05em;
}

.airport-divider {
  width: 1px;
  height: 80px;
  background: var(--border);
}

/* CTA */
.cta-section { text-align: center; padding: 8rem 3rem; position: relative; overflow: hidden; }

.cta-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,218,26,0.1) 0%, transparent 65%);
  pointer-events: none;
}

.cta-section h2 { font-size: clamp(2rem, 5vw, 4rem); margin-bottom: 1.2rem; position: relative; }
.cta-section p { font-size: 1rem; color: var(--gray-light); margin-bottom: 2.5rem; font-weight: 300; position: relative; }

.email-form { display: flex; gap: 0.8rem; justify-content: center; align-items: center; flex-wrap: wrap; position: relative; }

.email-input {
  font-family: 'Pretendard', sans-serif;
  font-size: 0.9rem;
  padding: 0.85rem 1.4rem;
  background: var(--navy-light);
  border: 1px solid var(--border);
  border-radius: 2rem;
  color: var(--white);
  width: 280px;
  outline: none;
  transition: border-color 0.2s;
}
.email-input::placeholder { color: var(--gray); }
.email-input:focus { border-color: var(--border-amber); }

/* Footer */
footer {
  padding: 2.5rem 3rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo { font-family: 'DM Mono', monospace; font-size: 1rem; color: var(--amber); letter-spacing: 0.1em; }
.footer-note { font-size: 0.78rem; color: var(--gray); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.8rem; color: var(--gray); text-decoration: none; transition: color 0.2s; }
.footer-links a:hover { color: var(--white); }

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fadeUp 0.7s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.22s; }
.delay-3 { animation-delay: 0.35s; }
.delay-4 { animation-delay: 0.48s; }

@media (max-width: 800px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .lang-switcher { display: none; }
  .hero { padding: 6rem 1.5rem 4rem; }
  .hero-stats { display: none; }
  section { padding: 5rem 1.5rem; }
  .flow-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card { border-right: none !important; }
  .feature-card:last-child { border-bottom: none; }
  .airport-logos { gap: 2rem; }
  .airport-code { font-size: 2.5rem; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
}