:root {
    --gold: #C9A96E;
    --gold-light: #E8D5B0;
    --navy: #0D2B45;
    --deep: #07182A;
    --cream: #F5F0E8;
    --white: #FFFFFF;
    --text-dark: #1A2B3C;
    --t1: #C9A96E;
    --t2: #E07B4A;
    --t3: #2DC4A0;
  }

  * { margin: 0; padding: 0; box-sizing: border-box; }
  html { scroll-behavior: smooth; }

  body {
    background: var(--deep);
    font-family: 'Outfit', sans-serif;
    color: rgba(255,255,255,0.85);
    min-height: 100vh;
  }

  /* ─── LOGO ─── */
  .site-logo {
    position: fixed; top: 24px; left: 28px; z-index: 300;
  }
  .site-logo img {
    height: 48px; width: auto;
    filter: drop-shadow(0 2px 12px rgba(0,0,0,0.4));
  }

  /* ─── BOTTOM NAV ─── */
  .bottom-nav {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
    z-index: 200; display: flex; align-items: center; gap: 5px;
    padding: 7px 9px; background: rgba(10,15,25,0.8);
    backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
    border-radius: 80px; border: 1px solid rgba(255,255,255,0.12);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4); white-space: nowrap;
  }
  .nav-link {
    padding: 8px 18px; border-radius: 60px; font-size: 0.72rem;
    font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase;
    color: rgba(255,255,255,0.65); text-decoration: none;
    transition: all 0.25s; cursor: pointer; white-space: nowrap;
  }
  .nav-link:hover { color: white; background: rgba(255,255,255,0.1); }
  .nav-link.primary {
    background: var(--gold);
    color: var(--navy); font-weight: 700;
  }
  .nav-link.primary:hover { filter: brightness(1.1); transform: translateY(-1px); }
  .nav-divider { width: 1px; height: 18px; background: rgba(255,255,255,0.15); flex-shrink: 0; }

  /* ─── HERO ─── */
  .page-hero {
    min-height: 60vh;
    display: flex; flex-direction: column; justify-content: flex-end;
    padding: 0 6% 140px;
    position: relative; overflow: hidden;
  }
  .hero-bg {
    position: absolute; inset: 0;
    background:
      linear-gradient(160deg, rgba(7,24,42,0.15) 0%, rgba(7,24,42,0.7) 100%),
      radial-gradient(ellipse at 20% 60%, rgba(201,169,110,0.08) 0%, transparent 60%),
      linear-gradient(180deg, rgba(7,24,42,0) 40%, rgba(7,24,42,0.95) 100%);
    z-index: 1;
  }
    .hero-bg-img {
        position: absolute;
        inset: 0;
        background-image: var(--hero-image);
        background-size: cover;
        background-position: center 30%;
        z-index: 0;
    }
  .hero-content { position: relative; z-index: 2; }
  .hero-eyebrow {
    font-size: 0.65rem; font-weight: 700; letter-spacing: 5px;
    text-transform: uppercase; color: var(--gold);
    display: flex; align-items: center; gap: 10px; margin-bottom: 20px;
  }
  .eyebrow-line { width: 36px; height: 1px; background: var(--gold); }
  .hero-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: clamp(3.5rem, 9vw, 7rem);
    font-weight: 300; line-height: 0.95;
    color: #fff; letter-spacing: -0.01em;
    text-shadow: 0 4px 32px rgba(0,0,0,0.3);
  }
  .hero-title em {
    font-style: italic; display: block;
    color: var(--gold-light);
  }
  .hero-sub {
    margin-top: 16px; font-size: 0.9rem; font-weight: 300;
    color: rgba(255,255,255,0.6); letter-spacing: 0.03em;
    max-width: 420px;
  }

  /* ─── TOURS SECTION ─── */
  .tours-section {
    background: var(--deep);
    padding: 0 6% 120px;
    position: relative;
  }
  .tours-section::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(201,169,110,0.3), transparent);
  }

  .section-label {
    display: flex; align-items: center; gap: 10px;
    padding: 60px 0 48px;
    font-size: 0.65rem; font-weight: 700; letter-spacing: 5px;
    text-transform: uppercase; color: var(--gold);
  }
  .section-label-line { flex: 1; height: 1px; background: rgba(201,169,110,0.15); }

  /* ===== CARD LAYOUT MỚI – SẠCH, TỐI GIẢN ===== */
  .tour-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .tour-card {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 16px;
    overflow: hidden;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s, transform 0.4s cubic-bezier(0.23,1,0.32,1);
  }
  .tour-card:hover {
    border-color: rgba(201,169,110,0.25);
    transform: translateY(-6px);
  }

  .tour-card .card-image {
    width: 100%;
    aspect-ratio: 16/10;
    overflow: hidden;
    position: relative;
    background: rgba(255,255,255,0.03);
  }
  .tour-card .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.23,1,0.32,1);
  }
  .tour-card:hover .card-image img {
    transform: scale(1.04);
  }

  .tour-card .card-image video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.23,1,0.32,1);
  }
  .tour-card:hover .card-image video {
    transform: scale(1.04);
  }

  .tour-card .card-body {
    padding: 24px 24px 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
  }

  .card-tag {
    display: inline-flex; align-items: center; gap: 8px;
    font-size: 0.55rem; font-weight: 700; letter-spacing: 4px;
    text-transform: uppercase; margin-bottom: 10px;
  }
  .card-tag-dot { width: 5px; height: 5px; border-radius: 50%; flex-shrink: 0; }

  .card-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.5rem;
    font-weight: 300; line-height: 1.05;
    color: #fff; margin-bottom: 6px;
  }
  .card-title em {
    font-style: italic; font-weight: 300;
    color: var(--gold-light);
  }

  .card-desc {
    font-size: 0.82rem; font-weight: 300;
    color: rgba(255,255,255,0.5); line-height: 1.6;
    margin-bottom: 18px;
    flex: 1;
  }

  .card-footer {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
    flex-wrap: wrap;
    gap: 8px;
  }
  .card-price {
    font-family: 'Cormorant Garamond', serif;
    font-size: 0.8rem; font-weight: 400;
    color: rgba(255,255,255,0.4);
  }
  .card-price strong {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.3rem; font-weight: 400;
    color: #fff; display: block; line-height: 1;
    margin-bottom: 2px;
  }

  .card-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 22px; border-radius: 60px;
    font-size: 0.7rem; font-weight: 700;
    letter-spacing: 0.06em; text-transform: uppercase;
    text-decoration: none; transition: all 0.25s;
    white-space: nowrap;
  }
  .card-btn i { font-size: 10px; transition: transform 0.25s; }
  .card-btn:hover i { transform: translateX(4px); }

  /* tour colors */
  .card-t1 .card-tag { color: var(--t1); }
  .card-t1 .card-tag-dot { background: var(--t1); }
  .card-t1 .card-btn { background: var(--t1); color: var(--navy); }
  .card-t1 .card-btn:hover { filter: brightness(1.1); }

  .card-t2 .card-tag { color: var(--t2); }
  .card-t2 .card-tag-dot { background: var(--t2); }
  .card-t2 .card-btn { background: var(--t2); color: #fff; }
  .card-t2 .card-btn:hover { filter: brightness(1.1); }

  .card-t3 .card-tag { color: var(--t3); }
  .card-t3 .card-tag-dot { background: var(--t3); }
  .card-t3 .card-btn { background: var(--t3); color: #fff; }
  .card-t3 .card-btn:hover { filter: brightness(1.1); }

  /* ===== INFO STRIP – SẠCH HƠN ===== */
  .info-strip {
    background: rgba(255,255,255,0.02);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 32px 36px;
    margin-top: 48px;
  }
  .info-strip-inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
  .info-cell {
    padding: 0 20px;
    border-right: 1px solid rgba(255,255,255,0.06);
  }
  .info-cell:last-child { border-right: none; }
  .info-cell:first-child { padding-left: 0; }

  .info-label {
    font-size: 0.55rem; font-weight: 700; letter-spacing: 3px;
    text-transform: uppercase; color: var(--gold); margin-bottom: 4px;
  }
  .info-value {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.1rem; font-weight: 400; color: rgba(255,255,255,0.85);
  }
  .info-value small {
    font-family: 'Outfit', sans-serif;
    font-size: 0.65rem; color: rgba(255,255,255,0.3);
    font-weight: 300; display: block; margin-top: 1px;
  }

  /* ===== BOOKING CARD – TINH TẾ ===== */
  .booking-card {
    background: linear-gradient(145deg, rgba(201,169,110,0.06), rgba(13,43,69,0.3));
    border: 1px solid rgba(201,169,110,0.12);
    border-radius: 16px;
    padding: 40px 44px;
    margin-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    position: relative;
    overflow: hidden;
  }
  .booking-card::before {
    content: '';
    position: absolute; top: -60px; right: -60px;
    width: 240px; height: 240px;
    border-radius: 50%;
    border: 1px solid rgba(201,169,110,0.06);
  }
  .booking-card-left {
    position: relative; z-index: 2;
    flex: 1;
  }
  .booking-card-icon {
    font-size: 1.6rem; color: var(--gold); margin-bottom: 12px; display: block;
  }
  .booking-card-title {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.6rem; font-weight: 300;
    color: #fff; margin-bottom: 4px;
  }
  .booking-card-title em { font-style: italic; color: var(--gold-light); }
  .booking-card-desc {
    font-size: 0.85rem; font-weight: 300;
    color: rgba(255,255,255,0.45); line-height: 1.6;
    max-width: 480px;
  }
  .booking-btn {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 14px 34px; border-radius: 60px;
    font-size: 0.75rem; font-weight: 700;
    letter-spacing: 0.08em; text-transform: uppercase;
    text-decoration: none; transition: all 0.25s;
    background: var(--gold); color: var(--navy);
    flex-shrink: 0;
    position: relative; z-index: 2;
  }
  .booking-btn:hover { filter: brightness(1.1); transform: translateY(-2px); }
  .booking-btn i { font-size: 10px; transition: transform 0.25s; }
  .booking-btn:hover i { transform: translateX(4px); }

  /* ─── FOOTER ─── */
  footer {
    background: #060F1A;
    border-top: 1px solid rgba(201,169,110,0.12);
    padding: 48px 6% 120px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px; margin-bottom: 40px;
  }
  .footer-col-label {
    font-size: 0.6rem; font-weight: 700; letter-spacing: 4px;
    text-transform: uppercase; color: var(--gold);
    margin-bottom: 16px;
    display: flex; align-items: center; gap: 8px;
  }
  .footer-col-label::after {
    content: ''; flex: 1; height: 1px;
    background: rgba(201,169,110,0.2);
  }
  .footer-text {
    font-size: 0.82rem; font-weight: 300;
    color: rgba(255,255,255,0.45); line-height: 1.7;
  }
  .footer-text a {
    color: rgba(255,255,255,0.45); text-decoration: none;
    transition: color 0.2s;
  }
  .footer-text a:hover { color: var(--gold-light); }
  .footer-text p { margin-bottom: 6px; }
  .social-links {
    display: flex; gap: 14px; margin-top: 16px;
  }
  .social-links a {
    width: 36px; height: 36px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.4); font-size: 13px;
    text-decoration: none; transition: all 0.25s;
  }
  .social-links a:hover {
    border-color: var(--gold); color: var(--gold);
    transform: translateY(-2px);
  }
  .footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255,255,255,0.06);
    font-size: 0.72rem; font-weight: 300;
    color: rgba(255,255,255,0.2); letter-spacing: 0.05em;
    display: flex; justify-content: space-between; align-items: center;
  }
  .footer-policy-link {
    color: rgba(255,255,255,0.2); text-decoration: none;
    transition: color 0.2s;
  }
  .footer-policy-link:hover { color: var(--gold); }

  /* ─── FADE UP ─── */
  .fade-up {
    opacity: 0; transform: translateY(28px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.2,0.9,0.3,1);
  }
  .fade-up.visible { opacity: 1; transform: translateY(0); }

  /* ─── RESPONSIVE ─── */
  @media (max-width: 1024px) {
    .tour-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
    .info-strip-inner { grid-template-columns: repeat(2, 1fr); gap: 16px 0; }
    .info-cell { padding: 12px 16px; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.04); }
    .info-cell:first-child { padding-left: 0; }
    .info-cell:nth-child(2) { border-right: none; }
    .info-cell:last-child { border-bottom: none; }
    .booking-card { flex-direction: column; align-items: flex-start; padding: 32px 28px; }
  }

  @media (max-width: 768px) {
    .site-logo { top: 16px; left: 16px; }
    .site-logo img { height: 38px; }
    .page-hero { padding: 0 5% 120px; min-height: 50vh; }
    .tours-section { padding: 0 5% 100px; }
    .section-label { padding: 40px 0 32px; }
    .tour-grid { grid-template-columns: 1fr; gap: 16px; }
    .tour-card .card-body { padding: 20px 20px 24px; }
    .card-title { font-size: 1.3rem; }
    .info-strip { padding: 20px 16px; margin-top: 32px; }
    .info-strip-inner { grid-template-columns: 1fr 1fr; gap: 0; }
    .info-cell { padding: 14px 12px; border-bottom: 1px solid rgba(255,255,255,0.04); }
    .info-value { font-size: 1rem; }
    .booking-card { padding: 28px 20px; }
    .booking-card-title { font-size: 1.3rem; }
    .booking-card-desc { font-size: 0.8rem; }
    .booking-btn { width: 100%; justify-content: center; padding: 14px 24px; }
    .footer-grid { gap: 32px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
    .bottom-nav { gap: 4px; padding: 6px 8px; }
    .nav-link { padding: 7px 14px; font-size: 0.68rem; }
    .nav-divider { height: 16px; }
  }

  @media (max-width: 480px) {
    .page-hero { min-height: 40vh; padding: 0 5% 100px; }
    .hero-title { font-size: 2.8rem; }
    .hero-sub { font-size: 0.8rem; }
    .tour-card .card-image { aspect-ratio: 16/11; }
    .info-strip-inner { grid-template-columns: 1fr; }
    .info-cell { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.04); }
    .info-cell:last-child { border-bottom: none; }
    .info-cell:first-child { padding-left: 0; }
    .booking-card { padding: 24px 16px; }
    .booking-card-title { font-size: 1.2rem; }
    .booking-card-desc { font-size: 0.75rem; }
    .card-footer { flex-direction: column; align-items: flex-start; gap: 12px; }
    .card-btn { width: 100%; justify-content: center; }
  }