/* =========================================================
   BS. Nguyễn Phúc Quảng – Landing page
   Brand: emerald + champagne gold · Be Vietnam Pro + Playfair
   ========================================================= */
:root {
  --ink: #0a2622;
  --ink-2: #0f342f;
  --brand: #0f6e60;
  --brand-600: #0b5a4f;
  --brand-50: #eaf4f1;
  --brand-100: #d5ebe5;
  --gold: #b8894a;
  --gold-2: #dcb57e;
  --gold-3: #f1dcb8;
  --gold-grad: linear-gradient(135deg, #f0d29f 0%, #c99a5b 45%, #a37237 100%);
  --text: #10201d;
  --muted: #5d6e6a;
  --line: #e2eae8;
  --bg: #ffffff;
  --bg-soft: #f3f7f6;
  --radius: 28px;
  --radius-sm: 18px;
  --shadow: 0 20px 50px -24px rgba(10, 38, 34, .35);
  --shadow-sm: 0 8px 24px -12px rgba(10, 38, 34, .25);
  --sans: "Be Vietnam Pro", ui-sans-serif, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 8px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--sans); font-size: 16px; line-height: 1.6;
  color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
em { font-family: var(--serif); font-style: italic; font-weight: 500; letter-spacing: -.01em; }

.ic { width: 20px; height: 20px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 54px; padding: 0 28px; border-radius: 999px;
  font-weight: 700; font-size: 15px; letter-spacing: .01em; white-space: nowrap;
  transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn .ic { width: 18px; height: 18px; }
.btn--gold { background: var(--gold-grad); color: #2a1a05; box-shadow: 0 12px 30px -10px rgba(201, 154, 91, .65); }
.btn--gold:hover { box-shadow: 0 16px 36px -10px rgba(201, 154, 91, .8); }
.btn--ghost { color: #fff; border: 1px solid rgba(255, 255, 255, .28); background: rgba(255, 255, 255, .06); backdrop-filter: blur(6px); }
.btn--ghost:hover { background: rgba(255, 255, 255, .14); }
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark:hover { background: var(--brand); box-shadow: var(--shadow-sm); }
.btn--outline { border: 1.5px solid var(--ink); color: var(--ink); }
.btn--outline:hover { background: var(--ink); color: #fff; }
.btn--sm { height: 44px; padding: 0 20px; font-size: 14px; }
.btn--block { width: 100%; }

/* ---------- Eyebrow / headings ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 12.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--brand);
  margin-bottom: 18px;
}
.eyebrow span { width: 34px; height: 1.5px; background: currentColor; display: inline-block; }
.eyebrow--light { color: var(--gold-2); }
.h2 {
  font-size: clamp(32px, 3.6vw, 50px); line-height: 1.1; font-weight: 800; letter-spacing: -.03em; color: var(--ink);
}
.h2 em { color: var(--brand); font-weight: 500; }
.h2--light { color: #fff; }
.h2--light em { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .08em; }
.lead { font-size: 17px; color: var(--muted); margin-top: 22px; max-width: 560px; }
.lead--light { color: rgba(255, 255, 255, .72); }
.note { font-size: 13px; color: var(--muted); margin-top: 22px; font-style: italic; }

.section { position: relative; padding: 120px 0; }
.section--soft { background: var(--bg-soft); }
.section--dark { background: var(--ink); color: #fff; overflow: hidden; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 32px; margin-bottom: 56px; flex-wrap: wrap; }
.section-head--center { flex-direction: column; align-items: center; text-align: center; }
.section-head__aside { max-width: 400px; color: var(--muted); font-size: 15px; }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto 0; z-index: 50; height: var(--header-h);
  transition: background .3s ease, box-shadow .3s ease, height .3s ease;
}
.header__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.header.is-scrolled { background: rgba(255, 255, 255, .92); backdrop-filter: blur(14px); box-shadow: 0 1px 0 var(--line), 0 10px 30px -20px rgba(10, 38, 34, .3); }

.logo { display: inline-flex; align-items: center; gap: 12px; color: #fff; }
.logo__mark {
  width: 42px; height: 42px; border-radius: 50%; display: grid; place-items: center;
  background: radial-gradient(circle at 30% 25%, #1c8b7a, var(--brand-600) 70%);
  box-shadow: inset 0 0 0 1.5px rgba(241, 220, 184, .7);
  font-family: var(--serif); font-style: italic; font-weight: 600; font-size: 24px; color: var(--gold-3); line-height: 1;
}
.logo__text { display: flex; flex-direction: column; line-height: 1.15; }
.logo__text b { font-size: 15px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; }
.logo__text small { font-size: 10.5px; letter-spacing: .26em; text-transform: uppercase; opacity: .7; font-weight: 600; }
.header.is-scrolled .logo { color: var(--ink); }
.header.is-scrolled .logo__text small { color: var(--brand); opacity: 1; }

.nav { display: flex; gap: 34px; }
.nav a { font-size: 14.5px; font-weight: 600; color: rgba(255, 255, 255, .86); position: relative; padding: 6px 0; transition: color .2s; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1.5px; background: var(--gold-2); transform: scaleX(0); transition: transform .25s; transform-origin: left; }
.nav a:hover { color: #fff; }
.nav a:hover::after { transform: scaleX(1); }
.header.is-scrolled .nav a { color: var(--text); }
.header.is-scrolled .nav a:hover { color: var(--brand); }

.header__cta { display: flex; align-items: center; gap: 18px; }
.header__phone { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; color: #fff; }
.header__phone .ic { width: 17px; height: 17px; color: var(--gold-2); }
.header.is-scrolled .header__phone { color: var(--ink); }
.header.is-scrolled .header__phone .ic { color: var(--brand); }
.nav-toggle { display: none; width: 44px; height: 44px; border-radius: 50%; place-items: center; color: #fff; border: 1px solid rgba(255, 255, 255, .25); }
.header.is-scrolled .nav-toggle { color: var(--ink); border-color: var(--line); }

/* ---------- Hero ---------- */
.hero {
  position: relative; color: #fff; overflow: hidden;
  padding: calc(var(--header-h) + 64px) 0 0;
  background:
    radial-gradient(900px 600px at 85% 30%, rgba(28, 139, 122, .45), transparent 60%),
    radial-gradient(700px 500px at 10% 90%, rgba(201, 154, 91, .16), transparent 60%),
    linear-gradient(160deg, #0d3a33 0%, var(--ink) 55%, #071b18 100%);
}
.hero__glow { position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px); background-size: 28px 28px;
  mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent); }
.hero__grid { position: relative; display: grid; grid-template-columns: 1.3fr .7fr; gap: 48px; align-items: center; }
.hero__title { font-size: clamp(44px, 5.4vw, 78px); line-height: 1.04; font-weight: 800; letter-spacing: -.035em; }
.hero__title em {
  display: inline-block; font-weight: 500; letter-spacing: -.02em; margin-top: .06em;
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding: 0 .08em .08em 0;
}
.hero__lead { margin-top: 28px; font-size: 18px; color: rgba(255, 255, 255, .74); max-width: 560px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

.hero__visual { position: relative; justify-self: end; width: 100%; max-width: 440px; padding: 24px 0 40px; }
.hero__arch {
  position: relative; aspect-ratio: 4 / 5.6; border-radius: 999px 999px 32px 32px; overflow: hidden;
  background: linear-gradient(180deg, #d9efe9, #f3faf8);
  box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .6), 0 0 0 1px rgba(241, 220, 184, .35);
}
.hero__arch::after { content: ""; position: absolute; inset: 10px; border-radius: inherit; border: 1px solid rgba(255, 255, 255, .6); pointer-events: none; }
.hero__arch img { width: 100%; height: 100%; object-fit: cover; object-position: 40% 10%; }
.hero__chip {
  position: absolute; display: flex; align-items: center; gap: 12px; padding: 12px 18px 12px 12px; border-radius: 999px;
  background: rgba(255, 255, 255, .95); color: var(--ink); box-shadow: var(--shadow); line-height: 1.2; animation: float 6s ease-in-out infinite;
}
.hero__chip--top { top: 18%; left: -64px; }
.hero__chip b { display: block; font-size: 15px; font-weight: 800; }
.hero__chip small { font-size: 12px; color: var(--muted); }
.hero__chip-ic { width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; background: var(--brand-50); color: var(--brand); }
.hero__promo {
  position: absolute; right: -28px; bottom: 6px; width: 230px; padding: 18px 20px; border-radius: 22px;
  background: rgba(10, 38, 34, .72); backdrop-filter: blur(14px); border: 1px solid rgba(241, 220, 184, .35);
  box-shadow: var(--shadow); animation: float 6s ease-in-out infinite -3s; transition: border-color .25s;
}
.hero__promo:hover { border-color: var(--gold-2); }
.hero__promo small { font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--gold-2); font-weight: 700; }
.hero__promo b { display: block; font-size: 17px; font-weight: 700; margin-top: 4px; }
.hero__promo b span { display: block; font-family: var(--serif); font-style: italic; font-size: 30px; line-height: 1.15; background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__promo-time { display: flex; align-items: center; gap: 6px; margin-top: 8px; font-size: 13px; color: rgba(255, 255, 255, .72); }
.hero__promo-time strong { color: #fff; }
.hero__promo-time .ic { width: 15px; height: 15px; margin-left: auto; color: var(--gold-2); }

.hero__strip {
  position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  margin-top: 56px; padding: 30px 0 38px; border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero__strip li { display: flex; align-items: center; gap: 14px; }
.hero__strip .ic { width: 26px; height: 26px; color: var(--gold-2); }
.hero__strip b { display: block; font-size: 15px; font-weight: 700; line-height: 1.3; }
.hero__strip small { display: block; font-size: 12.5px; line-height: 1.45; color: rgba(255, 255, 255, .6); }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 1fr 1.05fr; gap: 80px; align-items: center; }
.about__media { position: relative; }
.about__main { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); aspect-ratio: 3 / 4; }
.about__main img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.badge-float {
  position: absolute; top: 20px; left: 20px; display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 999px; background: rgba(255, 255, 255, .94); color: var(--ink);
  font-size: 13.5px; font-weight: 700; box-shadow: var(--shadow-sm); backdrop-filter: blur(8px);
}
.badge-float .ic { width: 18px; height: 18px; color: var(--brand); }

.checklist { margin-top: 28px; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; font-weight: 500; }
.checklist .ic { width: 22px; height: 22px; padding: 4px; border-radius: 50%; background: var(--brand); color: #fff; stroke-width: 3; margin-top: 1px; }
.checklist--light li { color: rgba(255, 255, 255, .88); }
.checklist--light .ic { background: var(--gold-grad); color: var(--ink); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); margin: 36px 0; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; }
.stats div { padding: 20px 22px; }
.stats div + div { border-left: 1px solid var(--line); }
.stats b { display: block; font-size: 34px; font-weight: 800; letter-spacing: -.03em; color: var(--ink); line-height: 1.1; }
.stats span { font-size: 13px; color: var(--muted); }

/* ---------- Bento services ---------- */
.bento { display: grid; grid-template-columns: 1.1fr 1fr 1fr; grid-template-rows: 310px 310px; gap: 20px; }
.tile { position: relative; border-radius: var(--radius); overflow: hidden; isolation: isolate; color: #fff; background: var(--ink-2); }
.tile--tall { grid-row: span 2; }
.tile img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .8s cubic-bezier(.2, .7, .2, 1); }
.tile::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(10, 38, 34, 0) 35%, rgba(10, 38, 34, .88) 100%); }
.tile:hover img { transform: scale(1.06); }
.tile__body { position: absolute; left: 28px; right: 90px; bottom: 26px; }
.tile__num { font-size: 13px; font-weight: 700; color: var(--gold-2); letter-spacing: .1em; }
.tile h3 { font-size: clamp(22px, 2.3vw, 30px); font-weight: 800; letter-spacing: -.02em; line-height: 1.15; margin-top: 4px; }
.tile p { font-size: 14px; color: rgba(255, 255, 255, .78); margin-top: 6px; line-height: 1.5; }
.tile__go { position: absolute; right: 24px; bottom: 26px; width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; background: #fff; color: var(--ink); transition: background .25s, color .25s, transform .25s; }
.tile:hover .tile__go { background: var(--gold-grad); transform: rotate(-45deg); }

/* ---------- Why ---------- */
.why { display: grid; grid-template-columns: 1fr 1.08fr; gap: 72px; align-items: center; }
.why__media { position: relative; padding: 0 60px 60px 0; }
.why__media > img:first-child { width: 100%; aspect-ratio: 4 / 4.3; object-fit: cover; object-position: 50% 20%; border-radius: var(--radius); box-shadow: var(--shadow); }
.why__inset { position: absolute; right: 0; bottom: 0; width: 48%; aspect-ratio: 1; object-fit: cover; object-position: 50% 15%; border-radius: var(--radius-sm); border: 6px solid var(--bg-soft); box-shadow: var(--shadow); }
.badge-float--light { top: 20px; left: 20px; }
.why__list { display: grid; gap: 14px; margin-top: 34px; }
.why__list li {
  position: relative; display: flex; gap: 18px; align-items: center; padding: 20px 64px 20px 20px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); transition: transform .25s, box-shadow .25s, border-color .25s;
}
.why__list li:hover { transform: translateX(6px); box-shadow: var(--shadow-sm); border-color: var(--brand-100); }
.why__ic { width: 50px; height: 50px; flex: none; border-radius: 14px; display: grid; place-items: center; background: var(--brand-50); color: var(--brand); }
.why__ic .ic { width: 24px; height: 24px; }
.why__list h3 { font-size: 17px; font-weight: 700; color: var(--ink); }
.why__list p { font-size: 14px; color: var(--muted); margin-top: 2px; line-height: 1.5; }
.why__list i { position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-family: var(--serif); font-size: 26px; color: var(--brand-100); }

/* ---------- Kết quả: album trước / sau ---------- */
.albums { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.album { display: flex; flex-direction: column; align-items: center; gap: 2px; text-align: center; }
.album__cover {
  position: relative; display: block; width: 100%; aspect-ratio: 3 / 4; margin-bottom: 12px;
  border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); box-shadow: var(--shadow-sm);
  transition: transform .35s ease, box-shadow .35s ease;
}
.album__cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10, 38, 34, 0) 55%, rgba(10, 38, 34, .72) 100%); }
.album__cover img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 25%; transition: transform .8s cubic-bezier(.2, .7, .2, 1); }
.album:hover .album__cover { transform: translateY(-6px); box-shadow: var(--shadow); }
.album:hover .album__cover img { transform: scale(1.05); }
.album__count { position: absolute; left: 22px; bottom: 18px; z-index: 1; color: #fff; font-size: 28px; font-weight: 800; letter-spacing: -.02em; }
.album__title { font-size: 19px; font-weight: 800; color: var(--ink); letter-spacing: -.01em; }

/* ---------- Offers ---------- */
.promo-bg { position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(700px 400px at 15% 0%, rgba(28, 139, 122, .45), transparent 60%),
    radial-gradient(600px 400px at 90% 100%, rgba(201, 154, 91, .2), transparent 60%); }
#uu-dai .container { position: relative; }
.countdown { display: flex; gap: 12px; margin-top: 8px; }
.countdown div { min-width: 82px; padding: 14px 10px 10px; border-radius: 18px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(241, 220, 184, .22); text-align: center; }
.countdown b { display: block; font-size: 34px; font-weight: 800; line-height: 1; font-variant-numeric: tabular-nums; }
.countdown small { font-size: 11.5px; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-2); font-weight: 600; }

.offers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.offer {
  position: relative; display: flex; flex-direction: column; padding: 30px 26px 26px; border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .03));
  border: 1px solid rgba(255, 255, 255, .12); transition: transform .3s, border-color .3s, background .3s;
}
.offer:hover { transform: translateY(-6px); border-color: rgba(241, 220, 184, .5); }
.offer--hot { background: linear-gradient(180deg, rgba(201, 154, 91, .22), rgba(201, 154, 91, .06)); border-color: rgba(241, 220, 184, .45); }
.offer__ribbon { position: absolute; top: -13px; right: 22px; padding: 5px 14px; border-radius: 999px; background: var(--gold-grad); color: #2a1a05; font-size: 11.5px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.offer__tag { font-size: 12.5px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--gold-2); }
.offer h3 { font-size: 24px; font-weight: 800; line-height: 1.2; margin-top: 10px; letter-spacing: -.02em; }
.offer h3 em { color: var(--gold-3); }
.offer__x2 { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-top: 16px; padding: 14px 16px; border-radius: 16px; background: rgba(255, 255, 255, .06); }
.offer__x2 + .offer__x2 { margin-top: 10px; }
.offer__x2 small { display: block; font-size: 11.5px; color: rgba(255, 255, 255, .6); text-transform: uppercase; letter-spacing: .08em; }
.offer__x2 b { font-family: var(--serif); font-style: italic; font-size: 24px; font-weight: 600; color: var(--gold-3); }
.offer__x2 > span { color: var(--gold-2); font-size: 20px; }
.offer__perks { display: grid; gap: 10px; margin-top: 18px; }
.offer__perks li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: rgba(255, 255, 255, .86); }
.offer__perks .ic { width: 18px; height: 18px; color: var(--gold-2); }
.offer__or { margin-top: 20px; padding-top: 16px; border-top: 1px dashed rgba(255, 255, 255, .2); font-size: 13px; text-transform: uppercase; letter-spacing: .1em; color: rgba(255, 255, 255, .6); }
.offer__value { display: flex; align-items: baseline; gap: 8px; margin-top: 6px; }
.offer > .offer__value:nth-child(3) { margin-top: 26px; }
.offer__value small { font-size: 13px; text-transform: uppercase; letter-spacing: .1em; color: rgba(255, 255, 255, .6); align-self: center; }
.offer__value b { font-family: var(--serif); font-style: italic; font-weight: 600; font-size: 72px; line-height: 1; background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .06em; }
.offer__value span { font-size: 20px; font-weight: 700; color: var(--gold-3); }
.offer__cta { margin-top: auto; padding-top: 24px; display: inline-flex; align-items: center; gap: 8px; font-weight: 700; font-size: 15px; color: #fff; }
.offer__cta .ic { width: 18px; height: 18px; color: var(--gold-2); transition: transform .25s; }
.offer:hover .offer__cta .ic { transform: translateX(4px); }

/* ---------- Certificates marquee ---------- */
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.marquee__track { display: flex; gap: 20px; width: max-content; animation: marquee 60s linear infinite; padding: 10px 0 20px; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.cert { width: 280px; flex: none; border-radius: var(--radius-sm); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .3s, box-shadow .3s; }
.cert:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.cert img { width: 100%; aspect-ratio: 1; object-fit: cover; }
@keyframes marquee { to { transform: translateX(calc(-50% - 10px)); } }

/* ---------- Feedback slider ---------- */
.slider-nav { display: flex; gap: 10px; }
.round-btn { width: 52px; height: 52px; border-radius: 50%; border: 1.5px solid var(--line); display: grid; place-items: center; color: var(--ink); transition: all .2s; }
.round-btn:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.slider {
  display: flex; gap: 20px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none;
  padding: 6px max(24px, calc((100vw - 1240px) / 2 + 24px)) 24px;
  scroll-padding: 0 max(24px, calc((100vw - 1240px) / 2 + 24px));
}
.slider::-webkit-scrollbar { display: none; }
.fb { flex: 0 0 360px; scroll-snap-align: start; border-radius: var(--radius-sm); overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .3s; }
.fb:hover { transform: translateY(-6px); }
.fb img { width: 100%; aspect-ratio: 1; object-fit: cover; }

.videos { display: grid; grid-template-columns: 1.1fr repeat(3, 1fr); gap: 20px; margin-top: 56px; align-items: stretch; }
.videos__intro { display: flex; flex-direction: column; justify-content: center; gap: 12px; padding: 28px; border-radius: var(--radius); background: #fff; }
.videos__intro h3 { font-size: 30px; font-weight: 800; letter-spacing: -.02em; color: var(--ink); }
.videos__intro h3 em { color: var(--brand); }
.videos__intro p { color: var(--muted); font-size: 15px; }
.videos__intro .btn { align-self: flex-start; margin-top: 8px; }
.video { border-radius: var(--radius); overflow: hidden; background: var(--ink); aspect-ratio: 9 / 16; box-shadow: var(--shadow-sm); }
.video video { width: 100%; height: 100%; object-fit: cover; background: var(--ink); }

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: s; position: relative; }
.steps::before { content: ""; position: absolute; left: 10%; right: 10%; top: 62px; height: 1.5px; background: repeating-linear-gradient(90deg, var(--brand-100) 0 8px, transparent 8px 14px); }
.steps li { position: relative; text-align: center; padding: 30px 18px 26px; background: #fff; border-radius: var(--radius-sm); border: 1px solid var(--line); transition: transform .3s, box-shadow .3s; }
.steps li:hover { transform: translateY(-6px); box-shadow: var(--shadow-sm); }
.steps i { position: absolute; top: 14px; right: 18px; font-family: var(--serif); font-size: 22px; color: var(--brand-100); }
.steps__ic { width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--gold-2); position: relative; box-shadow: 0 0 0 8px var(--bg-soft); }
.steps__ic .ic { width: 26px; height: 26px; }
.steps h3 { font-size: 17px; font-weight: 700; color: var(--ink); }
.steps p { font-size: 14px; color: var(--muted); margin-top: 6px; line-height: 1.5; }

/* ---------- Booking ---------- */
.booking { background:
  radial-gradient(700px 500px at 0% 0%, rgba(28, 139, 122, .4), transparent 60%),
  radial-gradient(600px 500px at 100% 100%, rgba(201, 154, 91, .16), transparent 60%), var(--ink); }
.booking__grid { display: grid; grid-template-columns: 1fr 480px; gap: 80px; align-items: center; }
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 36px; }
.contact__item { display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: 18px; background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .1); }
.contact__item > span { width: 46px; height: 46px; flex: none; border-radius: 50%; display: grid; place-items: center; background: var(--gold-grad); color: var(--ink); }
.contact__item small { display: block; font-size: 12px; color: rgba(255, 255, 255, .6); text-transform: uppercase; letter-spacing: .1em; }
.contact__item b { font-size: 16px; line-height: 1.3; }

.form { position: relative; background: #fff; color: var(--text); border-radius: var(--radius); padding: 36px 34px 28px; box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .55); }
.form h3 { font-size: 26px; font-weight: 800; color: var(--ink); letter-spacing: -.02em; }
.form__sub { color: var(--muted); font-size: 14px; margin: 2px 0 22px; }
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; color: var(--ink); }
.field > span em { font-family: var(--sans); font-style: normal; font-weight: 400; color: var(--muted); }
.field input, .field select, .field textarea {
  width: 100%; border: 1.5px solid var(--line); border-radius: 14px; padding: 13px 16px; font: inherit; font-size: 15px;
  color: var(--text); background: var(--bg-soft); outline: none; transition: border-color .2s, background .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 84px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--brand); background: #fff; box-shadow: 0 0 0 4px rgba(15, 110, 96, .12); }
.field.is-invalid input { border-color: #d14b4b; }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%230f6e60' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 42px; }
.form__error { color: #c23b3b; font-size: 13.5px; min-height: 0; margin-bottom: 8px; }
.form__error:empty { display: none; }
.form .btn { margin-top: 6px; }
.form__privacy { display: flex; justify-content: center; align-items: center; gap: 6px; font-size: 12.5px; color: var(--muted); margin-top: 14px; }
.form__privacy .ic { width: 14px; height: 14px; }
.form__done { position: absolute; inset: 0; border-radius: inherit; background: #fff; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 34px; gap: 10px; }
.form__done[hidden] { display: none; }
.form__done-ic { width: 72px; height: 72px; border-radius: 50%; display: grid; place-items: center; background: var(--brand); color: #fff; margin-bottom: 6px; }
.form__done-ic .ic { width: 34px; height: 34px; stroke-width: 2.5; }
.form__done p { color: var(--muted); }

/* ---------- Footer ---------- */
.footer { background: #061a17; color: rgba(255, 255, 255, .7); padding: 64px 0 28px; font-size: 14.5px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; align-items: start; }
.footer__grid p { margin-top: 16px; max-width: 360px; }
.logo--light { color: #fff; }
.footer__links { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 24px; }
.footer__links a:hover, .footer__contact a:hover { color: var(--gold-2); }
.footer__contact { display: grid; gap: 12px; }
.footer__contact a { display: inline-flex; align-items: center; gap: 10px; color: #fff; font-weight: 600; }
.footer__contact .ic { color: var(--gold-2); width: 18px; height: 18px; }
.footer__bottom { margin-top: 48px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, .08); font-size: 13px; color: rgba(255, 255, 255, .45); }

/* ---------- Floating & mobile bar ---------- */
.float { position: fixed; right: 22px; bottom: 26px; z-index: 40; display: grid; gap: 12px; }
.float__btn { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; color: #fff; box-shadow: 0 12px 28px -10px rgba(0, 0, 0, .45); transition: transform .2s; font-weight: 800; font-size: 13px; }
.float__btn:hover { transform: scale(1.08); }
.float__btn .ic { width: 24px; height: 24px; }
.float__btn--zalo { background: #0068ff; }
.float__btn--msg { background: linear-gradient(135deg, #00b2ff, #a033ff); }
.float__btn--call { background: var(--brand); position: relative; }
.float__btn--call::before, .float__btn--call::after { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--brand); animation: ring 2s ease-out infinite; }
.float__btn--call::after { animation-delay: 1s; }
@keyframes ring { from { transform: scale(1); opacity: .8; } to { transform: scale(1.7); opacity: 0; } }

.mbar { display: none; }

/* ---------- Lightbox ---------- */
.lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(5, 18, 16, .92); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; padding: 60px 80px; }
.lightbox[hidden] { display: none; }
.lightbox figure { max-width: min(900px, 100%); max-height: 100%; display: flex; flex-direction: column; align-items: center; gap: 14px; }
.lightbox img { max-height: calc(100vh - 160px); width: auto; border-radius: 16px; box-shadow: 0 30px 80px rgba(0, 0, 0, .5); }
.lightbox figcaption { color: rgba(255, 255, 255, .85); font-size: 15px; text-align: center; }
.lightbox__close, .lightbox__nav { position: absolute; width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: rgba(255, 255, 255, .1); transition: background .2s; }
.lightbox__close:hover, .lightbox__nav:hover { background: rgba(255, 255, 255, .22); }
.lightbox__close { top: 20px; right: 20px; z-index: 2; }
.lightbox__bars { display: flex; gap: 4px; width: 100%; }
.lightbox__bars:empty { display: none; }
.lightbox__bars span { flex: 1; height: 3px; border-radius: 3px; background: rgba(255, 255, 255, .25); }
.lightbox__bars span.is-on { background: var(--gold-2); }
.lightbox figure > img[hidden], .lightbox__pair[hidden] { display: none; }
.lightbox__pair {
  display: grid; grid-template-columns: 1fr 1fr; gap: 4px; width: min(860px, calc((100vh - 190px) * 1.5)); max-width: 100%;
  border-radius: 16px; overflow: hidden; box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
}
.lightbox__pair div { position: relative; aspect-ratio: 3 / 4; background: #1b2b28; }
.lightbox__pair img { width: 100%; height: 100%; max-height: none; object-fit: cover; object-position: 50% 30%; border-radius: 0; box-shadow: none; }
.lightbox__pair span {
  position: absolute; left: 12px; bottom: 12px; padding: 4px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; background: rgba(10, 38, 34, .78); color: #fff;
}
.lightbox__pair div + div span { background: var(--gold-grad); color: #2a1a05; }
.lightbox.is-locked figure { filter: blur(24px) saturate(.6); pointer-events: none; }
.lightbox.is-locked .lightbox__nav { display: none; }
.lightbox__gate { position: absolute; inset: 0; z-index: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 24px; text-align: center; color: #fff; }
.lightbox__gate[hidden] { display: none; }
.lightbox__gate-ic { width: 64px; height: 64px; border-radius: 50%; display: grid; place-items: center; background: #fff; color: var(--brand); margin-bottom: 6px; }
.lightbox__gate-ic .ic { width: 26px; height: 26px; }
.lightbox__gate h3 { font-size: 24px; font-weight: 800; letter-spacing: -.02em; }
.lightbox__gate p { max-width: 420px; color: rgba(255, 255, 255, .8); font-size: 15px; margin-bottom: 12px; }
.lightbox__nav--prev { left: 20px; }
.lightbox__nav--next { right: 20px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee__track, .hero__chip, .hero__promo, .float__btn--call::before, .float__btn--call::after { animation: none; }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1180px) {
  .nav { gap: 22px; }
  .header__phone span { display: none; }
  .offers { grid-template-columns: repeat(2, 1fr); }
  .videos { grid-template-columns: repeat(3, 1fr); }
  .videos__intro { grid-column: 1 / -1; flex-direction: row; align-items: center; flex-wrap: wrap; }
  .videos__intro p { flex: 1; min-width: 240px; }
  .videos__intro .btn { margin-top: 0; }
}

@media (max-width: 1024px) {
  :root { --header-h: 68px; }
  .section { padding: 96px 0; }
  .nav {
    position: fixed; top: var(--header-h); left: 0; right: 0; flex-direction: column; gap: 0;
    background: #fff; padding: 8px 24px 20px; box-shadow: 0 20px 30px -20px rgba(0, 0, 0, .3);
    transform: translateY(-12px); opacity: 0; pointer-events: none; transition: all .25s;
  }
  .nav.is-open { transform: none; opacity: 1; pointer-events: auto; }
  .nav a { color: var(--text); padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .nav a::after { display: none; }
  .nav-toggle { display: grid; }
  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
  .hero__visual { justify-self: center; max-width: 380px; }
  .hero__chip--top { left: -40px; }
  .hero__promo { right: -20px; }
  .hero__strip { grid-template-columns: repeat(2, 1fr); }
  .about, .why, .booking__grid { grid-template-columns: 1fr; gap: 56px; }
  .about__media, .why__media { max-width: 620px; }
  .bento { grid-template-columns: 1fr 1fr; grid-template-rows: 480px 300px; }
  .tile--tall { grid-row: auto; }
  .albums { gap: 18px; }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .steps::before { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__grid > div:first-child { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body { font-size: 15px; padding-bottom: 72px; }
  .container { padding: 0 16px; }
  .section { padding: 76px 0; }
  .section-head { margin-bottom: 36px; }
  .header__cta .btn { display: none; }
  .logo__text b { font-size: 13.5px; }
  .logo__mark { width: 38px; height: 38px; font-size: 21px; }
  .hero { padding-top: calc(var(--header-h) + 36px); }
  .hero__title { font-size: clamp(34px, 9.6vw, 44px); }
  .hero__lead { font-size: 16px; }
  .eyebrow { font-size: 11.5px; letter-spacing: .1em; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__visual { max-width: 300px; }
  .hero__chip--top { left: -24px; top: 12%; padding: 8px 14px 8px 8px; }
  .hero__chip-ic { width: 32px; height: 32px; }
  .hero__chip b { font-size: 13.5px; }
  .hero__promo { right: -14px; width: 200px; padding: 14px 16px; }
  .hero__promo b span { font-size: 22px; }
  .hero__strip { gap: 18px 12px; margin-top: 40px; }
  .hero__strip .ic { width: 22px; height: 22px; }
  .hero__strip b { font-size: 13.5px; }
  .hero__strip small { font-size: 11.5px; }
  .stats div { padding: 16px 12px; }
  .stats b { font-size: 26px; }
  .stats span { font-size: 12px; }
  .bento { grid-template-columns: 1fr; grid-template-rows: none; grid-auto-rows: 400px; }
  .tile__body { left: 20px; right: 78px; bottom: 20px; }
  .tile__go { right: 18px; bottom: 20px; width: 44px; height: 44px; }
  .why__media { padding: 0 32px 40px 0; }
  .why__list li { padding: 16px 44px 16px 16px; gap: 14px; }
  .why__ic { width: 44px; height: 44px; }
  .why__list i { right: 14px; font-size: 20px; }
  .albums { gap: 10px; }
  .album__cover { border-radius: 16px; margin-bottom: 8px; }
  .album__count { left: 10px; bottom: 8px; font-size: 17px; }
  .album__title { font-size: 14.5px; }
  .countdown div { min-width: 68px; padding: 12px 6px 8px; }
  .countdown b { font-size: 28px; }
  .offers { grid-template-columns: 1fr; }
  .offer__value b { font-size: 62px; }
  .cert { width: 220px; }
  .fb { flex-basis: 78vw; }
  .slider-nav { display: none; }
  .videos { display: flex; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; margin: 40px -16px 0; padding: 0 16px 8px; scrollbar-width: none; }
  .videos::-webkit-scrollbar { display: none; }
  .videos__intro { flex: 0 0 78vw; flex-direction: column; align-items: flex-start; scroll-snap-align: start; }
  .videos__intro p { flex: none; min-width: 0; }
  .video { flex: 0 0 58vw; scroll-snap-align: start; }
  .steps { grid-template-columns: 1fr; }
  .steps li { display: grid; grid-template-columns: 56px 1fr; gap: 0 16px; text-align: left; padding: 18px; align-items: center; }
  .steps__ic { width: 56px; height: 56px; margin: 0; grid-row: span 2; box-shadow: none; }
  .steps p { margin-top: 2px; }
  .contact { grid-template-columns: 1fr; }
  .form { padding: 28px 20px 22px; }
  .footer__grid { grid-template-columns: 1fr; }
  .float { right: 14px; bottom: 88px; gap: 10px; }
  .float__btn { width: 50px; height: 50px; }
  .float__btn--call { display: none; }
  .mbar {
    display: grid; grid-template-columns: 1fr 1.4fr; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 45;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(255, 255, 255, .96); backdrop-filter: blur(12px);
    box-shadow: 0 -10px 30px -16px rgba(0, 0, 0, .3);
  }
  .mbar a { height: 50px; border-radius: 999px; display: flex; align-items: center; justify-content: center; gap: 8px; font-weight: 700; font-size: 15px; }
  .mbar .ic { width: 18px; height: 18px; }
  .mbar__call { background: var(--ink); color: #fff; }
  .mbar__book { background: var(--gold-grad); color: #2a1a05; }
  .lightbox { padding: 60px 12px; }
  .lightbox__nav { top: auto; bottom: 20px; }
  .lightbox__nav--prev { left: calc(50% - 64px); }
  .lightbox__nav--next { right: calc(50% - 64px); }
}