@import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;700;900&display=swap');

:root {
  --navy: #0b2a4a;
  --gold: #d89b1e;
  --gold-deep: #b67e12;
  --gold-light: #f2c14e;
  --ivory: #fff8e8;
  --blue-gray: #dce6ef;
  --white: #ffffff;
  --text: #0b2a4a;
  --border: #dfc27b;
  --muted: #526273;
  --surface: #fffaf0;
  --surface-strong: #f8edd3;
  --shadow: 0 18px 42px rgba(11, 42, 74, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Source Sans Pro', sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--white);
}

img {
  max-width: 100%;
}

a {
  color: var(--gold-deep);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

p, ul, ol {
  margin-bottom: 1rem;
}

h1, h2, h3 {
  line-height: 1.15;
  color: var(--navy);
  margin-bottom: 1rem;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  border-bottom: 4px solid var(--gold);
  display: inline-block;
  padding-bottom: 0.35rem;
  margin-bottom: 1.75rem;
  margin-top: 2.5rem;
}

h3 {
  font-size: 1.35rem;
  font-weight: 700;
}

section {
  padding: 60px 0;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, #123a5e 100%);
  color: var(--ivory);
  text-align: center;
  padding: 100px 24px 80px;
  position: relative;
}

.hero h1 {
  color: var(--ivory);
  margin-bottom: 0.5rem;
}

.hero .subtitle {
  font-size: 1.35rem;
  color: var(--gold-light);
  max-width: 700px;
  margin: 0 auto 2rem;
  font-weight: 300;
}

.hero p {
  max-width: 640px;
  margin: 0 auto;
  color: var(--blue-gray);
}

/* City grid */
.city-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 2rem 0;
}

.city-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 24px;
  transition: box-shadow 0.2s, transform 0.2s;
}

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

.city-card h3 {
  margin-bottom: 0.5rem;
}

.city-card h3 a {
  color: var(--navy);
}

.city-card p {
  font-size: 0.95rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.badge-laos {
  background: #e8f5e9;
  color: #2e7d32;
}

.badge-cambodia {
  background: #fce4ec;
  color: #c62828;
}

/* Guide list */
.guide-list {
  list-style: none;
  padding: 0;
}

.guide-list li {
  padding: 16px 20px;
  border-bottom: 1px solid var(--blue-gray);
  display: flex;
  align-items: center;
  gap: 12px;
}

.guide-list li:last-child {
  border-bottom: none;
}

.guide-list li::before {
  content: "\2192";
  color: var(--gold-deep);
  font-weight: 700;
  font-size: 1.2rem;
}

.guide-list a {
  font-weight: 600;
  font-size: 1.05rem;
}

/* Network footer */
.network-footer {
  background: var(--navy);
  color: var(--blue-gray);
  padding: 48px 24px;
  margin-top: 60px;
}

.network-footer h3 {
  color: var(--gold-light);
  margin-bottom: 1.5rem;
}

.network-footer .footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.network-footer a {
  color: var(--gold-light);
  display: block;
  padding: 4px 0;
}

.network-footer a:hover {
  color: var(--gold);
}

.network-footer .copyright {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid #1e4a6e;
  font-size: 0.85rem;
  color: #6b8da8;
}

.faq-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--blue-gray);
}

.faq-question {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--navy);
}

.cta-section {
  text-align: center;
  background: var(--surface-strong);
  border-radius: 12px;
  padding: 48px 24px;
  margin: 2rem 0;
}

.cta-section h2 {
  border-bottom: none;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  background: var(--gold);
  color: var(--navy);
  font-weight: 700;
  padding: 14px 36px;
  border-radius: 8px;
  font-size: 1.05rem;
  transition: background 0.2s;
}

.btn:hover {
  background: var(--gold-light);
  text-decoration: none;
}

@media (max-width: 600px) {
  .hero {
    padding: 60px 20px 50px;
  }
  section {
    padding: 40px 0;
  }
}