@import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@300;400;600;700;900&display=swap');

:root {
  --island: #1c3f60;
  --island-deep: #122c45;
  --lagoon: #2f6b9e;
  --sand: #f2e9dc;
  --coral: #c0392b;
  --coral-deep: #962e23;
  --white: #ffffff;
  --text: #122c45;
  --border: #9db8d0;
  --muted: #4f6478;
  --surface: #f3f7fa;
  --surface-strong: #e1ecf4;
  --shadow: 0 18px 42px rgba(10, 69, 69, 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: var(--white); }
img { max-width: 100%; height: auto; }
a { color: var(--island); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
p, ul, ol { margin-bottom: 1rem; }
ul, ol { padding-left: 1.25rem; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

.site-header { background: var(--island); color: var(--white); padding: 14px 0; position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 42px; width: auto; border-radius: 10px; }
.brand-mark { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 10px; background: var(--sand); color: var(--island-deep); font-weight: 900; font-size: 1.1rem; }
.brand-name { font-weight: 700; font-size: 1.15rem; color: var(--white); }
.main-nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.main-nav a { color: #d9f2f2; font-weight: 600; font-size: 0.95rem; }
.main-nav a:hover { color: var(--sand); text-decoration: none; }
.nav-book { background: var(--coral); color: var(--white) !important; padding: 8px 18px; border-radius: 8px; font-weight: 700; }

.hero { background: linear-gradient(rgba(0,0,0,.6),rgba(0,0,0,.6)), url('/hero-haiphong.webp') center/cover no-repeat; color: var(--white); padding: 64px 0 40px; text-align: center; }
.hero h1 { font-size: 2.6rem; font-weight: 900; margin-bottom: 10px; }
.hero-subheadline { font-size: 1.25rem; color: var(--sand); font-weight: 600; margin-bottom: 18px; }
.hero-intro { max-width: 760px; margin: 0 auto 14px; font-size: 1.08rem; color: #e4f5f5; }
.hero-price-note { max-width: 760px; margin: 0 auto; font-size: 0.9rem; color: #bcdcdc; }

.hero-intro-block { padding: 44px 0 20px; }
.hero-intro-block h2, .how-it-works h2, .route-section h2, .faq h2, .cta h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 22px; color: var(--island-deep); }
.hero-price-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.hero-price-card { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 22px; box-shadow: var(--shadow); }
.hero-price-card h3 { color: var(--island-deep); margin-bottom: 14px; font-size: 1.15rem; }
.hero-price-row { display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--border); font-size: 0.98rem; }
.hero-price-row:last-child { border-bottom: none; }
.hero-price-total { font-size: 1.1rem; }
.hero-price-secondary { color: var(--muted); font-size: 0.9rem; }

.how-it-works { background: var(--surface); padding: 44px 0; }
.day-loop { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.day-loop-track { background: var(--white); border: 1px solid var(--border); border-left: 5px solid var(--lagoon); border-radius: 10px; padding: 16px 18px; }
.day-loop-time { font-weight: 900; color: var(--coral); font-size: 1.05rem; }
.day-loop-title-time { font-weight: 700; color: var(--island-deep); margin: 2px 0 6px; }
.day-loop-track p { margin: 0; font-size: 0.95rem; color: var(--muted); }

.route-section { padding: 44px 0; }
.facts-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 26px; }
.fact-item { background: var(--surface-strong); border-radius: 12px; padding: 18px; text-align: center; }
.fact-item strong { display: block; font-size: 1.3rem; color: var(--island-deep); }
.fact-item span { font-size: 0.9rem; color: var(--muted); }
.critical-instructions { background: var(--sand); border: 1px solid var(--border); border-radius: 12px; padding: 20px 24px; }
.critical-instructions h3 { color: var(--island-deep); margin-bottom: 10px; }
.critical-instructions ul { margin: 0; }

.faq { background: var(--surface); padding: 44px 0; }
.faq-item { background: var(--white); border: 1px solid var(--border); border-radius: 10px; padding: 16px 20px; margin-bottom: 12px; }
.faq-item h3 { font-size: 1.05rem; color: var(--island-deep); cursor: pointer; }
.faq-item p { margin: 8px 0 0; color: var(--muted); }

.cta { background: linear-gradient(135deg, var(--coral-deep), var(--coral)); color: var(--white); text-align: center; padding: 44px 0; }
.cta h2 { color: var(--white); margin-bottom: 16px; }
.cta-button { display: inline-block; background: var(--white); color: var(--coral-deep) !important; font-weight: 800; padding: 14px 34px; border-radius: 10px; font-size: 1.1rem; }
.cta-button:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.2); }

.site-footer { background: var(--island-deep); color: #cfe8e8; padding: 30px 0 20px; font-size: 0.9rem; }
.site-footer a { color: #a8d5d5; }
.network-footer { margin-top: 20px; border-top: 1px solid #2c6a6a; padding-top: 18px; }
.network-footer p { font-weight: 700; color: var(--white); margin-bottom: 10px; }
.network-footer nav { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.network-footer nav a { font-size: 0.85rem; }

.floating-whatsapp { position: fixed; bottom: 22px; right: 22px; z-index: 999; width: 60px; height: 60px; border-radius: 50%; box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45); background: #25D366; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.floating-whatsapp img { width: 100%; height: 100%; object-fit: cover; }

@media (max-width: 640px) {
  .hero h1 { font-size: 1.9rem; }
  .site-header .container { flex-direction: column; }
  .main-nav { justify-content: center; gap: 12px; }
}

.contact-section { padding: 44px 0; background: var(--surface); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.contact-info h2 { font-size: 1.6rem; font-weight: 800; color: var(--island-deep); margin-bottom: 12px; }
.contact-info p { color: var(--muted); }
.contact-details { margin-top: 18px; }
.contact-details p { margin-bottom: 8px; }
.contact-form-wrap { background: var(--white); border: 1px solid var(--border); border-radius: 14px; padding: 24px; box-shadow: var(--shadow); }
.booking-form label { display: block; font-weight: 600; font-size: 0.9rem; color: var(--text); margin-bottom: 5px; }
.booking-form input, .booking-form textarea { width: 100%; padding: 11px 14px; border: 1px solid var(--border); border-radius: 9px; font-size: 0.95rem; font-family: inherit; color: var(--text); background: var(--surface); }
.booking-form input:focus, .booking-form textarea:focus { outline: 2px solid var(--coral); border-color: transparent; }
.booking-form textarea { resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.booking-form > div { margin-bottom: 14px; }
.honeypot { display: none !important; }
.form-submit { width: 100%; background: var(--coral); color: #fff; font-weight: 800; font-size: 1.05rem; padding: 13px; border: none; border-radius: 10px; cursor: pointer; transition: transform 0.2s, box-shadow 0.2s; }
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0,0,0,0.15); }
.form-success { color: #1d7a3f; background: #e6f6ea; border: 1px solid #b7e3c2; border-radius: 9px; padding: 11px 14px; margin-top: 12px; }
.form-error { color: #a33; background: #fdeaea; border: 1px solid #f0c4c4; border-radius: 9px; padding: 11px 14px; margin-top: 12px; }
.hidden { display: none; }
@media (max-width: 760px) { .contact-grid { grid-template-columns: 1fr; } .form-row { grid-template-columns: 1fr; } }

/* Storyboard gallery */
.storyboard { padding: 64px 0; background: var(--bg-light, #f8f9fa); }
.storyboard .container { max-width: 1100px; margin: 0 auto; padding: 0 24px; text-align: center; }
.section-label { text-transform: uppercase; letter-spacing: 0.25em; font-size: 0.8rem; font-weight: 700; color: var(--primary, #E67E22); margin-bottom: 8px; }
.storyboard h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 12px; color: var(--text-dark, #2d3436); }
.section-sub { color: var(--text-light, #636e72); max-width: 560px; margin: 0 auto 36px; }
.storyboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; text-align: left; }
.storyboard-item { background: #fff; border-radius: 16px; overflow: hidden; box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
.storyboard-item img { width: 100%; height: 200px; object-fit: cover; display: block; }
.storyboard-item figcaption { padding: 12px 16px; font-size: 0.92rem; color: var(--text-dark, #2d3436); font-weight: 600; }
@media (max-width: 760px) { .storyboard-grid { grid-template-columns: 1fr; } .storyboard-item img { height: 220px; } }