:root {
  color-scheme: light;
  --bg: #f7f5f0;
  --ink: #0a0b10;
  --muted: #4a515f;
  --line: rgba(10, 11, 16, 0.08);
  --accent: #d4af37;
  --accent-deep: #a67c00;
  --aqua: #8ad9d8;
  --glass: rgba(255, 255, 255, 0.7);
  --shadow: 0 24px 60px rgba(15, 18, 34, 0.18);
  --radius: 28px;
  --image-hcmc: url("https://images.unsplash.com/photo-1582311251827-3264625395dc?auto=format&fit=crop&w=1600&q=80");
  --image-danang: url("https://images.unsplash.com/photo-1737425426971-09b860196936?auto=format&fit=crop&w=1600&q=80");
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html[dir="rtl"] body {
  direction: rtl;
}

html[dir="rtl"] .site-header,
html[dir="rtl"] .hero,
html[dir="rtl"] .destination,
html[dir="rtl"] .cta-card {
  direction: rtl;
}

html[dir="rtl"] .hero-actions,
html[dir="rtl"] .site-nav,
html[dir="rtl"] .lang-switch {
  flex-direction: row-reverse;
}

body {
  margin: 0;
  font-family: "Manrope", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top left, #ffffff 0%, var(--bg) 45%),
    linear-gradient(120deg, rgba(138, 217, 216, 0.3), rgba(212, 175, 55, 0.22));
  min-height: 100vh;
  overflow-x: hidden;
}

body.no-scroll {
  overflow: hidden;
}

.ambient {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 10% 20%, rgba(212, 175, 55, 0.18), transparent 40%),
    radial-gradient(circle at 80% 10%, rgba(138, 217, 216, 0.22), transparent 45%),
    radial-gradient(circle at 70% 80%, rgba(16, 49, 98, 0.08), transparent 55%);
  z-index: -2;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: rgba(10, 11, 16, 0.08);
  z-index: 20;
}

.scroll-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--aqua));
  transition: width 0.2s ease-out;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 6vw 10px;
  position: sticky;
  top: 0;
  background: rgba(247, 245, 240, 0.7);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  z-index: 10;
}

.brand {
  display: flex;
  gap: 16px;
  align-items: center;
}

.brand-mark {
  font-family: "Playfair Display", serif;
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: 0.18em;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  text-transform: uppercase;
  background: var(--glass);
}

.brand-text p {
  margin: 0;
}

.brand-title {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-subtitle {
  font-size: 0.88rem;
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 20px;
  align-items: center;
  font-size: 0.95rem;
  flex-wrap: wrap;
}

.site-nav a {
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
}

.nav-cta {
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: 0 12px 30px rgba(15, 18, 34, 0.12);
}

.lang-switch {
  position: static;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 10px 26px rgba(15, 18, 34, 0.12);
}

.lang-label {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.lang-select {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 30px 6px 12px;
  appearance: none;
  cursor: pointer;
}

main {
  padding: 0 6vw 120px;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  padding: 70px 0 90px;
  align-items: center;
  scroll-margin-top: 120px;
}

.hero-content h1 {
  font-family: "Playfair Display", serif;
  font-size: clamp(2.6rem, 3.6vw, 4rem);
  line-height: 1.1;
  margin: 0 0 18px;
}

.eyebrow {
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.32em;
  color: var(--accent-deep);
  font-weight: 600;
  margin-bottom: 14px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.primary-btn,
.ghost-btn {
  font-family: "Manrope", sans-serif;
  font-weight: 600;
  border-radius: 999px;
  padding: 14px 24px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.primary-btn {
  background: linear-gradient(120deg, var(--accent), #f4d37e);
  color: #161616;
  box-shadow: var(--shadow);
}

.ghost-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.hero-note {
  margin-top: 26px;
  padding: 14px 18px;
  border-left: 3px solid var(--accent-deep);
  background: rgba(255, 255, 255, 0.6);
  border-radius: 14px;
  font-size: 0.95rem;
  color: var(--muted);
}

.hero-visuals {
  display: grid;
  gap: 20px;
}

.city-panel {
  position: relative;
  min-height: 220px;
  border-radius: var(--radius);
  overflow: hidden;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
  will-change: transform;
}

.city-panel.hcmc {
  background-image: var(--image-hcmc);
}

.city-panel.danang {
  background-image: var(--image-danang);
}

.city-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 20, 34, 0.05), rgba(10, 11, 16, 0.65));
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 24px;
}

.city-label {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
}

.city-caption {
  margin: 8px 0 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
}

.band {
  padding: 90px 0;
  scroll-margin-top: 120px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.band.alt {
  background: rgba(255, 255, 255, 0.6);
  border-radius: calc(var(--radius) + 6px);
  padding: 90px 5vw;
  margin: 0 -5vw;
  border: 1px solid var(--line);
}

.section-head {
  max-width: 680px;
  margin-bottom: 40px;
}

.section-head h2 {
  font-family: "Playfair Display", serif;
  font-size: clamp(2rem, 2.8vw, 3rem);
  margin-bottom: 12px;
}

.section-head p {
  color: var(--muted);
  font-size: 1.02rem;
}

.faq-subnote {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.98rem;
  max-width: 620px;
}

.card-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--glass);
  padding: 26px;
  border-radius: 22px;
  border: 1px solid var(--line);
  box-shadow: 0 18px 34px rgba(15, 18, 34, 0.12);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 12px;
}

.text-link {
  color: var(--accent-deep);
  text-decoration: none;
  font-weight: 600;
}

.split-grid {
  display: grid;
  gap: 30px;
}

.destination {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: center;
  background: rgba(255, 255, 255, 0.8);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.destination-image {
  border: none;
  min-height: 260px;
  border-radius: 22px;
  background-size: cover;
  background-position: center;
  background-color: transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  padding: 0;
}

.destination-image.hcmc {
  background-image: var(--image-hcmc);
}

.destination-image.danang {
  background-image: var(--image-danang);
}

.destination-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 9, 12, 0.05), rgba(8, 9, 12, 0.55));
  opacity: 0.7;
  transition: opacity 0.3s ease;
}

.destination-overlay {
  position: absolute;
  inset: 0;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 1;
  color: #fff;
}

.destination-tag {
  align-self: flex-end;
  background: rgba(8, 9, 12, 0.6);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.destination-note {
  background: rgba(8, 9, 12, 0.65);
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.95rem;
  line-height: 1.3;
}

.destination-image:hover,
.destination-image:focus-visible {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 24px 50px rgba(8, 9, 12, 0.24);
}

.destination-image:hover::after,
.destination-image:focus-visible::after {
  opacity: 0.95;
}

.destination-body ul {
  padding-left: 18px;
  color: var(--muted);
}

.lightbox {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.lightbox.is-open {
  display: flex;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 9, 12, 0.7);
  backdrop-filter: blur(4px);
}

.lightbox-card {
  position: relative;
  z-index: 1;
  width: min(920px, 92vw);
  background: #0d0f16;
  color: #fff;
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 30px 70px rgba(8, 9, 12, 0.4);
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  border: none;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.4rem;
}

.lightbox-media {
  display: grid;
  grid-template-columns: 46px 1fr 46px;
  gap: 12px;
  align-items: center;
}

.lightbox-image {
  width: 100%;
  height: auto;
  border-radius: 16px;
  max-height: 65vh;
  object-fit: cover;
}

.lightbox-nav {
  border: none;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 2rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  cursor: pointer;
}

.lightbox-caption {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.95rem;
  text-align: center;
}

.faq-grid {
  display: grid;
  gap: 16px;
}

summary {
  font-weight: 600;
  cursor: pointer;
}

details {
  padding: 18px 20px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.7);
}

.cta {
  padding: 90px 0 40px;
  scroll-margin-top: 120px;
}

.cta-card {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 30px;
  padding: 36px;
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.7));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.cta-note {
  color: var(--muted);
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  justify-content: center;
}

.micro {
  font-size: 0.85rem;
  color: var(--muted);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 40px 6vw 60px;
  font-size: 0.92rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.8);
}

.site-footer ul {
  padding-left: 18px;
}

.footer-meta {
  margin-top: 20px;
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .destination {
    grid-template-columns: 1fr;
  }

  .cta-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding-top: 56px;
  }

  .site-nav {
    flex-wrap: wrap;
  }

  .lang-switch {
    top: 10px;
  }
}

@media (max-width: 700px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
  }

  .site-header {
    position: static;
    padding-top: 16px;
  }

  .lang-switch {
    position: static;
  }

  .hero,
  .band,
  .cta {
    scroll-margin-top: 80px;
  }

  .lightbox-card {
    padding: 18px;
  }

  .lightbox-media {
    grid-template-columns: 36px 1fr 36px;
  }

  .lightbox-nav {
    width: 36px;
    height: 36px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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