:root {
  --bg: #eeeeec; --card: #e2e2df; --ink: #151515; --muted: #85857f; --line: #d4d4d0;
  --sans: "Inter Tight", "Inter", system-ui, sans-serif;
  --gut: clamp(16px, 2.6vw, 40px); --r: 10px; --ease: cubic-bezier(.2, .7, .2, 1);
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--ink); font: 400 15px/1.5 var(--sans); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
h1, h2, h3 { font-weight: 600; line-height: 1.04; letter-spacing: -.045em; }
h1 { font-size: clamp(3rem, 9.5vw, 9rem); }
h2 { font-size: clamp(2rem, 5vw, 4.2rem); }
h3 { font-size: 1.05rem; letter-spacing: -.02em; line-height: 1.3; }
em { font-style: normal; color: var(--muted); }
.tag { font-size: .8rem; color: var(--muted); }
.wrap { padding: 0 var(--gut); max-width: 1680px; margin: 0 auto; }
section { padding: clamp(56px, 8vw, 110px) 0; }

/* header */
.hdr { position: fixed; inset: 0 0 auto; z-index: 50; background: rgba(238, 238, 236, .88); backdrop-filter: blur(12px); }
.hdr .wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 600; letter-spacing: -.02em; }
.nav { display: flex; align-items: center; gap: 26px; font-size: .88rem; }
.nav a { color: var(--muted); transition: color .25s; }
.nav a:hover, .nav a.on { color: var(--ink); }
.nav .pill { background: var(--ink); color: var(--bg); padding: 9px 18px; border-radius: 6px; }
.nav .pill:hover { background: #333; color: var(--bg); }
.burger { display: none; background: var(--bg); border: 0; border-radius: 999px; padding: 10px 18px; font: inherit; font-size: .85rem; cursor: pointer; color: var(--ink); }
@media (max-width: 860px) {
  .burger { display: block; }
  .nav { position: fixed; inset: 64px var(--gut) auto; flex-direction: column; align-items: stretch; gap: 0; background: var(--bg); border-radius: var(--r); padding: 8px 18px 14px; display: none; box-shadow: 0 8px 30px rgba(0,0,0,.12); }
  .nav.open { display: flex; }
  .nav a { padding: 13px 0; border-bottom: 1px solid var(--line); color: var(--ink); }
  .nav .pill { margin-top: 12px; text-align: center; border: 0; }
}
body.plain main { padding-top: 64px; }

/* hero: chữ lớn góc trái, collage ảnh, mô tả góc phải dưới */
/* Cuộn xuống: chữ lớn thu nhỏ lên góc trái, ảnh lần lượt hiện ra xếp thành collage.
   JS đặt --p (tiến độ cuộn 0→1), --q (từng ảnh) và --f (phần chữ dưới cùng). */
.hero { --p: 0; --t: 0; --f: 0; height: 380svh; padding: 0; }
.hero .stick { position: sticky; top: 0; height: 100svh; overflow: hidden; }
.hero .wrap { position: relative; height: 100%; }
.hero h1 { position: absolute; left: var(--gut); top: 92px; font-size: clamp(3rem, 8vw, 8rem); transform-origin: 0 0; transform: translateY(calc((1 - var(--t)) * 10svh)) scale(calc(1 - .7 * var(--t))); will-change: transform; }
.collage { position: absolute; left: 50%; top: calc(50% + 34px); transform: translate(-50%, -50%); width: min(92vw, calc((100svh - 230px) * 1.889)); aspect-ratio: 17 / 9; display: grid; grid-template-columns: repeat(17, 1fr); grid-template-rows: repeat(9, 1fr); gap: 3px; }
.collage img { --q: 0; width: 100%; height: 100%; min-height: 0; object-fit: cover; border-radius: 10px; background: var(--card); opacity: var(--q); transform: translateY(calc((1 - var(--q)) * 56px)) scale(calc(.9 + .1 * var(--q))); filter: blur(calc((1 - var(--q)) * 10px)); will-change: transform, opacity, filter; }
.collage img:nth-child(1) { grid-area: 2 / 1 / 6 / 7; }
.collage img:nth-child(2) { grid-area: 3 / 7 / 6 / 10; }
.collage img:nth-child(3) { grid-area: 1 / 10 / 4 / 15; }
.collage img:nth-child(4) { grid-area: 2 / 15 / 4 / 17; }
.collage img:nth-child(5) { grid-area: 4 / 10 / 10 / 14; }
.collage img:nth-child(6) { grid-area: 4 / 14 / 8 / 18; }
.collage img:nth-child(7) { grid-area: 6 / 5 / 9 / 10; }
.hero .hint { position: absolute; left: var(--gut); bottom: 30px; opacity: calc(1 - var(--p) * 5); }
.hero .foot { position: absolute; left: var(--gut); right: var(--gut); bottom: 22px; display: flex; justify-content: space-between; align-items: end; gap: 24px; flex-wrap: wrap; opacity: var(--f); transform: translateY(calc((1 - var(--f)) * 14px)); pointer-events: none; }
.hero.fin .foot { pointer-events: auto; }
.hero .foot p { max-width: 36ch; }
@media (max-width: 800px) {
  .hero h1 { top: 84px; }
  .hero .foot { bottom: 70px; }
  .collage { top: 168px; transform: translateX(-50%); width: min(92vw, calc((100svh - 390px) * .8)); aspect-ratio: 8 / 10; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(10, 1fr); }
  .collage img:nth-child(1) { grid-area: 1 / 1 / 4 / 6; }
  .collage img:nth-child(2) { grid-area: 1 / 6 / 4 / 9; }
  .collage img:nth-child(3) { grid-area: 4 / 1 / 9 / 4; }
  .collage img:nth-child(4) { grid-area: 4 / 4 / 7 / 9; }
  .collage img:nth-child(5) { grid-area: 7 / 4 / 11 / 7; }
  .collage img:nth-child(6) { grid-area: 7 / 7 / 11 / 9; }
  .collage img:nth-child(7) { grid-area: 9 / 1 / 11 / 4; }
}
@media (prefers-reduced-motion: reduce) {
  .hero { --p: 1; --t: 1; --f: 1; height: auto; min-height: 100svh; }
  .hero .stick { position: relative; height: 100svh; }
  .collage img { --q: 1; }
  .hero .hint { display: none; }
  .hero .foot { pointer-events: auto; }
}
.btn { display: inline-flex; gap: 10px; align-items: center; padding: 13px 22px; border-radius: 6px; border: 0; background: var(--ink); color: var(--bg); font: inherit; font-size: .88rem; font-weight: 500; cursor: pointer; transition: background .25s, transform .25s var(--ease); }
.btn:hover { background: #3a3a38; }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--bg); }

/* tiêu đề mục */
.head { display: flex; justify-content: space-between; align-items: end; gap: 24px; flex-wrap: wrap; margin-bottom: clamp(24px, 4vw, 48px); }
.head p { color: var(--muted); max-width: 36ch; }

/* mục lục dịch vụ */
.index a { display: grid; grid-template-columns: 56px 1fr auto; align-items: baseline; padding: 22px 0; border-top: 1px solid var(--line); transition: padding .4s var(--ease); }
.index a:last-child { border-bottom: 1px solid var(--line); }
.index a:hover { padding-left: 12px; }
.index .n { font-size: .8rem; color: var(--muted); }
.index h3 { font-size: clamp(1.8rem, 4.5vw, 3.4rem); letter-spacing: -.04em; font-weight: 600; }

/* lưới album dày, kiểu Cosmos */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px 12px; }
@media (max-width: 1000px) { .cards { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px) { .cards { grid-template-columns: repeat(2, 1fr); gap: 20px 8px; } }
@media (max-width: 700px) { .cards:has(> .card:only-child) { grid-template-columns: 1fr; } }
.card .ph { overflow: hidden; background: var(--card); aspect-ratio: 4/5; border-radius: var(--r); }
.card:nth-child(5n+3) .ph { aspect-ratio: 1; }
.card img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.card:hover img { transform: scale(1.04); }
.card .row { display: flex; justify-content: space-between; gap: 8px; margin-top: 10px; }
.more { margin-top: 56px; display: flex; justify-content: center; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.filters button { border: 0; padding: 8px 16px; border-radius: 999px; cursor: pointer; font: inherit; font-size: .85rem; background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1px var(--line); transition: background .25s, color .25s; }
.filters button.on { background: var(--ink); color: var(--bg); box-shadow: none; }
.filters button:not(.on):hover { box-shadow: inset 0 0 0 1px var(--ink); }

/* trang album */
.masonry { columns: 3; column-gap: 10px; }
@media (max-width: 900px) { .masonry { columns: 2; column-gap: 8px; } }
.masonry button { display: block; width: 100%; margin: 0 0 10px; padding: 0; border: 0; background: var(--card); cursor: zoom-in; overflow: hidden; border-radius: var(--r); }
@media (max-width: 900px) { .masonry button { margin-bottom: 8px; } }
.masonry img { width: 100%; height: auto; transition: transform .9s var(--ease); }
.masonry button:hover img { transform: scale(1.03); }
.ahead { padding: clamp(32px, 6vw, 80px) 0 clamp(24px, 3vw, 40px); display: flex; justify-content: space-between; align-items: end; gap: 24px; flex-wrap: wrap; }
.ahead h1 { font-size: clamp(2.6rem, 8vw, 7rem); }
.ahead .date { font-size: clamp(1.4rem, 3vw, 2.2rem); font-weight: 600; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.month + .month { margin-top: clamp(48px, 7vw, 96px); }
.mh { display: flex; justify-content: space-between; align-items: baseline; font-size: clamp(1.6rem, 3.5vw, 2.6rem); letter-spacing: -.04em; padding-bottom: 14px; margin-bottom: 20px; border-bottom: 1px solid var(--ink); }
.pn { gap: 12px; flex-wrap: wrap; }

.two { display: grid; grid-template-columns: 5fr 6fr; gap: clamp(28px, 6vw, 100px); align-items: end; }
@media (max-width: 800px) { .two { grid-template-columns: 1fr; } }
.two img { width: 100%; aspect-ratio: 4/5; object-fit: cover; border-radius: var(--r); }
.two p { color: var(--muted); margin: 20px 0 28px; max-width: 44ch; }

/* báo giá dạng hàng */
.pk article { display: grid; grid-template-columns: 1.2fr 2fr auto; gap: 20px 40px; align-items: start; padding: 32px 0; border-top: 1px solid var(--line); }
.pk article:last-child { border-bottom: 1px solid var(--line); }
@media (max-width: 860px) { .pk article { grid-template-columns: 1fr; } }
.pk h3 { font-size: 1.6rem; letter-spacing: -.035em; }
.pk .price { color: var(--muted); margin-top: 6px; }
.pk ul { list-style: none; padding: 0; columns: 2; column-gap: 28px; }
@media (max-width: 520px) { .pk ul { columns: 1; } }
.pk li { padding: 2px 0; break-inside: avoid; }

.vids { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px 12px; }
.vids iframe { width: 100%; aspect-ratio: 16/9; border: 0; background: #000; border-radius: var(--r); }
.vids h3 { margin-top: 10px; }

.info { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 7vw, 110px); }
@media (max-width: 800px) { .info { grid-template-columns: 1fr; } }
.info dt { margin-top: 22px; }
.info dd { margin: 2px 0 0; font-size: 1.2rem; letter-spacing: -.02em; }
form { display: grid; gap: 14px; }
label span { display: block; margin-bottom: 4px; }
input, textarea, select { width: 100%; padding: 13px 14px; border: 0; border-radius: 8px; background: var(--card); font: inherit; color: inherit; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--ink); }

.cta .wrap { display: flex; justify-content: space-between; align-items: end; gap: 32px; flex-wrap: wrap; }
.cta h2 { font-size: clamp(2.4rem, 7vw, 6rem); }
.ftr { padding: 40px 0 90px; font-size: .88rem; color: var(--muted); border-top: 1px solid var(--line); }
.ftr .cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; }
@media (max-width: 700px) { .ftr .cols { grid-template-columns: 1fr; } }
.ftr .logo { color: var(--ink); display: block; margin-bottom: 6px; }
.ftr h4 { margin-bottom: 8px; font-weight: 500; color: var(--ink); }
.ftr a { display: block; padding: 1px 0; }
.ftr a:hover { color: var(--ink); }
.copy { margin-top: 36px; }

.float { position: fixed; right: 12px; bottom: 12px; z-index: 40; display: flex; gap: 6px; }
.float a { background: var(--ink); color: var(--bg); padding: 11px 18px; font-size: .82rem; border-radius: 999px; }
.float a:first-child { background: var(--bg); color: var(--ink); box-shadow: 0 2px 14px rgba(0,0,0,.14); }

.lb { position: fixed; inset: 0; z-index: 100; background: rgba(14,14,13,.95); display: none; align-items: center; justify-content: center; }
.lb.open { display: flex; }
.lb img { max-width: 92vw; max-height: 86vh; object-fit: contain; border-radius: 6px; }
.lb button { position: absolute; background: none; border: 0; color: #fff; font-size: 2.2rem; cursor: pointer; padding: 16px 22px; opacity: .75; }
.lb button:hover { opacity: 1; }
.lb .x { top: 4px; right: 4px; } .lb .p { left: 4px; } .lb .n { right: 4px; }
.lb .c { position: absolute; bottom: 16px; color: #aaa; font-size: .8rem; }

.reveal { opacity: 0; transform: translateY(20px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } * { transition-duration: .01ms !important; } }

.two .lead { color: var(--muted); font-size: 1.1rem; max-width: 46ch; margin: 0 0 16px; }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 20px; margin: 32px 0; }
.facts dd { margin: 2px 0 0; font-size: 1.6rem; font-weight: 600; letter-spacing: -.03em; }

/* video nổi bật trang chủ */
.film { padding: clamp(40px, 6vw, 90px) 0; }
.film-frame { --p: 0; position: relative; width: calc(88% + 12% * var(--p)); margin: 0 auto; aspect-ratio: 16/9; background: #000; overflow: hidden; border-radius: calc(36px - 28px * var(--p)); cursor: pointer; }
@media (min-width: 801px) { .film-frame { width: calc(60% + 40% * var(--p)); } }
.film-frame img, .film-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; border: 0; }
.film-frame .play { position: absolute; inset: 0; width: 100%; border: 0; padding: 0; background: linear-gradient(transparent 55%, rgba(0,0,0,.55)); cursor: pointer; }
.film-frame .cap { position: absolute; left: clamp(14px, 2.4vw, 28px); bottom: clamp(14px, 2.4vw, 28px); right: 16px; display: flex; align-items: center; gap: 14px; color: #fff; font-size: .95rem; pointer-events: none; }
.film-frame .pbtn { flex: none; background: #fff; color: var(--ink); padding: 11px 20px; border-radius: 999px; font-size: .8rem; font-weight: 500; letter-spacing: .04em; transition: background .3s, color .3s; }
.film-frame:hover .pbtn { background: var(--ink); color: #fff; }
.film-frame .play:focus-visible { outline: 3px solid #fff; outline-offset: -6px; }
.film .more { margin-top: 32px; display: flex; justify-content: center; }