@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700&display=swap');

:root {
  --bg: #0b1b2a;
  --bg-alt: #0f2438;
  --card: rgba(255, 255, 255, 0.04);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f5f6f8;
  --muted: #9fb1c7;
  --accent: #c9a33a;
  --accent-2: #89d0c2;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  font-family: 'Roboto', sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(circle at 10% 20%, rgba(201, 163, 58, 0.08), transparent 25%),
              radial-gradient(circle at 90% 10%, rgba(137, 208, 194, 0.08), transparent 25%),
              linear-gradient(180deg, #0c1c2c 0%, #0a1623 30%, #0b1b2a 100%);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #f1d68b; }

header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 27, 42, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 32px;
}

.brand {
  font-size: 18px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 18px;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

nav a {
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  transition: background 0.2s ease, color 0.2s ease;
  font-weight: 600;
  font-size: 14px;
}

nav a:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }

.hero {
  min-height: 80vh;
  display: grid;
  align-items: center;
  padding: 120px 32px 80px;
  background: linear-gradient(120deg, rgba(0, 0, 0, 0.55) 30%, rgba(0, 0, 0, 0.2)),
              url('../img/trang-chu-the-prive.jpg') center/cover no-repeat;
}

.container {
  width: min(1200px, 96vw);
  margin: 0 auto;
}

.hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #dce7f5;
  font-size: 13px;
  letter-spacing: 0.5px;
}

h1, h2, h3, h4 { margin: 0 0 12px; line-height: 1.3; }

h1 { font-size: clamp(34px, 6vw, 52px); }
h2 { font-size: clamp(26px, 4vw, 36px); }
h3 { font-size: 22px; }

.lead {
  font-size: 17px;
  color: var(--muted);
  max-width: 780px;
}

.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  letter-spacing: 0.3px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: linear-gradient(135deg, #c9a33a, #f1d68b);
  color: #0b1b2a;
  box-shadow: var(--shadow);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.section {
  padding: 80px 0;
}

.section-header { margin-bottom: 24px; }

.gallery {
  display: grid;
  gap: 12px;
}

.featured-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.featured-grid .main {
  grid-column: 1 / -1;
}

.gallery figure {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

.gallery img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.featured-grid .main img {
  height: clamp(260px, 45vw, 380px);
}

.gallery figcaption {
  padding: 10px 12px;
  color: var(--muted);
  font-size: 13px;
}

.section-subtitle {
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent-2);
  font-size: 13px;
  font-weight: 700;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.24);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.section-image {
  border-radius: var(--radius);
  min-height: 280px;
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.section-image.location { background-image: linear-gradient(0deg, rgba(0,0,0,0.35), rgba(0,0,0,0.35)), url('../img/vi-tri-du-an-the-Prive-.jpg'); }
.section-image.amenities { background-image: linear-gradient(0deg, rgba(0,0,0,0.35), rgba(0,0,0,0.35)), url('../img/ho-boi-du-an-the-prive-2.jpg'); }
.section-image.masterplan { background-image: linear-gradient(0deg, rgba(0,0,0,0.35), rgba(0,0,0,0.35)), url('../img/Quy-hoach-Du-an-can-ho-Riverside.jpg'); }
.section-image.showroom { background-image: linear-gradient(0deg, rgba(0,0,0,0.35), rgba(0,0,0,0.35)), url('../img/thiet-ke-nha-mau-the-prive-1-phong-ngu.jpg'); }
.section-image.pricing { background-image: linear-gradient(0deg, rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('../img/thiet-ke-the-prive-2-phong-ngu-1.jpg'); }
.section-image.contact { background-image: linear-gradient(0deg, rgba(0,0,0,0.45), rgba(0,0,0,0.45)), url('../img/phoi-canh-thiet-ke-du-an-the-prive-1.jpg'); }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 0;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(201, 163, 58, 0.14);
  border: 1px solid rgba(201, 163, 58, 0.4);
  color: #fcecc0;
  font-size: 12px;
  letter-spacing: 0.3px;
}

.feature-list { margin: 0; padding-left: 18px; color: var(--muted); }
.feature-list li { margin-bottom: 8px; }

.media-frame {
  position: relative;
  padding-top: 56.25%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: #000;
}

.media-frame.full {
  grid-column: 1 / -1;
  width: 100%;
}

.media-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.stat-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
}

.stat {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.03);
  text-align: center;
}

.stat .value { font-size: 26px; font-weight: 800; color: #f1d68b; }
.stat .label { color: var(--muted); font-size: 13px; }

.overlay-block {
  background: linear-gradient(120deg, rgba(201, 163, 58, 0.15), rgba(137, 208, 194, 0.15));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  color: var(--text);
}

.data-table th, .data-table td {
  border: 1px solid var(--line);
  padding: 12px;
  text-align: left;
}

.data-table th { background: rgba(255, 255, 255, 0.06); }
.data-table td { color: var(--muted); }

.footer {
  padding: 24px 32px 40px;
  border-top: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.35);
  text-align: center;
  color: var(--muted);
}

.highlight { color: #f1d68b; font-weight: 700; }

.call-fab {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 50;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #c9a33a, #f1d68b);
  color: #0b1b2a;
  font-weight: 500;
  letter-spacing: 0.2px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
  border: 2px solid #f1d68b;
}

.call-fab:hover { color: #0b1b2a; transform: scale(1.02); }

.zalo-fab {
  position: fixed;
  right: 18px;
  bottom: 74px;
  z-index: 50;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, #c9a33a, #f1d68b);
  color: #0b1b2a;
  font-weight: 500;
  letter-spacing: 0.2px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
  border: 2px solid #f1d68b;
}

.zalo-fab:hover { color: #0b1b2a; transform: scale(1.02); }

@media (max-width: 768px) {
  .navbar { flex-direction: column; align-items: flex-start; }
  .hero { padding-top: 100px; }
  nav ul { gap: 10px; }
  .featured-grid { grid-template-columns: 1fr; }
  .call-fab { right: 12px; bottom: 12px; padding: 9px 14px; font-size: 13px; }
  .zalo-fab { right: 12px; bottom: 62px; padding: 9px 14px; font-size: 13px; }
}