/* =========================================================================
   OPAL motion demo
   Trạng thái ẩn ban đầu chỉ áp khi <html> có class .js (gắn inline ở <head>),
   nên tắt JS thì trang vẫn hiện đủ nội dung.
   ========================================================================= */

@view-transition { navigation: auto; }

:root {
  --bg: #F3F1EC;
  --ink: #0E0E12;
  --ink-2: rgba(14, 14, 18, .6);
  --line: rgba(14, 14, 18, .14);
  --dark: #0B0B0F;
  --light: #F3F1EC;
  --violet: #7C5CFF;
  --aqua: #2EE6D6;
  --pink: #FF8FB1;
  --gold: #FFD36E;
  --irid: linear-gradient(100deg, #7C5CFF 0%, #2EE6D6 25%, #FF8FB1 50%, #FFD36E 75%, #7C5CFF 100%);
  /* chữ "mờ" thay cho chữ viền: font variable của Google còn đường chồng bên trong glyph,
     -webkit-text-stroke sẽ vẽ lộ cả mấy đường đó */
  --ghost: rgba(14, 14, 18, .1);
  --font-d: "Unbounded", "Arial Black", system-ui, sans-serif;
  --font-b: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --pad: clamp(16px, 4vw, 64px);
  --radius: clamp(20px, 2.2vw, 36px);
  --hdr-h: 84px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --ease-io: cubic-bezier(.76, 0, .24, 1);
}

body[data-theme="dark"] {
  --bg: #0B0B0F;
  --ink: #F3F1EC;
  --ink-2: rgba(243, 241, 236, .62);
  --line: rgba(243, 241, 236, .16);
  --ghost: rgba(243, 241, 236, .12);
}

/* ------------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scrollbar-gutter: stable; }
html.is-locked { overflow: hidden; background: var(--dark); } /* rãnh scrollbar cùng màu preloader/menu */
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font: 500 17px/1.55 var(--font-b);
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  transition: background-color .9s var(--ease), color .9s var(--ease);
}
img, svg, canvas, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
h1, h2, h3, p, figure, blockquote, dl, dd, ol, ul { margin: 0; }
::selection { background: var(--violet); color: #fff; }
:focus-visible { outline: 2px solid var(--violet); outline-offset: 4px; border-radius: 4px; }
.has-cursor, .has-cursor * { cursor: none !important; }
.has-cursor input, .has-cursor textarea { cursor: text !important; }

.skip {
  position: fixed; left: 12px; top: -80px; z-index: 400;
  padding: 12px 18px; border-radius: 999px; background: var(--ink); color: var(--bg); font-weight: 700;
}
.skip:focus { top: 12px; }

.eyebrow { font: 700 12px/1.3 var(--font-b); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); }
.ico { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.defs { position: absolute; width: 0; height: 0; overflow: hidden; }

.main {
  position: relative; z-index: 2;
  background: var(--bg);
  margin-bottom: var(--ftr-h, 0px);
  border-radius: 0 0 var(--radius) var(--radius);
  transition: background-color .9s var(--ease);
}
section { position: relative; }

/* --------------------------------------------------- reveal + split text */
.js [data-reveal] {
  opacity: 0; transform: translate3d(0, 48px, 0);
  transition: opacity 1s var(--ease) var(--d, 0ms), transform 1.2s var(--ease) var(--d, 0ms);
}
.js [data-reveal].is-in { opacity: 1; transform: none; }

.js [data-intro] {
  opacity: 0; transform: translate3d(0, 28px, 0);
  transition: opacity 1s var(--ease) var(--d, 0ms), transform 1.2s var(--ease) var(--d, 0ms);
}
.js.is-ready [data-intro] { opacity: 1; transform: none; }

.js [data-split]:not(.is-split) { opacity: 0; }
.w {
  display: inline-block; vertical-align: top; overflow: hidden;
  padding: .12em .02em .14em; margin: -.12em -.02em -.14em;
}
.w__i, .c { display: inline-block; }
.js [data-split] .w__i {
  transform: translate3d(0, 115%, 0) rotate(6deg); transform-origin: 0 100%;
  transition: transform 1.2s var(--ease) calc(var(--i, 0) * 55ms + var(--d, 0ms));
}
.js [data-split] .c {
  transform: translate3d(0, 115%, 0);
  transition: transform 1.05s var(--ease) calc(var(--ci, 0) * 26ms + var(--d, 0ms));
}
.js [data-split].is-in .w__i,
.js [data-split].is-in .c { transform: none; }

/* -------------------------------------------------------------- buttons */
.btn {
  position: relative; isolation: isolate; overflow: hidden;
  display: inline-flex; align-items: center; gap: 12px;
  height: 60px; padding: 0 30px; border-radius: 999px;
  background: var(--ink); color: var(--bg);
  font: 700 15px/1 var(--font-b); white-space: nowrap;
  transition: color .5s var(--ease);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: var(--irid); background-size: 200% 100%;
  transform: translate3d(0, 101%, 0); transition: transform .7s var(--ease);
}
.btn:hover { color: #0E0E12; }
.btn:hover::before { transform: none; animation: irid-move 3s linear infinite; }
.btn--light { background: var(--light); color: #0E0E12; }
.btn--lg { height: 72px; padding: 0 40px; font-size: 17px; }
@keyframes irid-move { to { background-position: 200% 0; } }

/* chữ cuộn lên khi hover (nav, link footer) */
.roll { display: inline-block; overflow: hidden; vertical-align: top; }
.roll > span { display: inline-block; position: relative; transition: transform .6s var(--ease); }
.roll > span::after { content: attr(data-text); position: absolute; left: 0; top: 100%; }
a:hover .roll > span { transform: translate3d(0, -100%, 0); }

.pulse { position: relative; width: 8px; height: 8px; border-radius: 50%; background: currentColor; flex: none; }
.pulse::after {
  content: ""; position: absolute; inset: -7px; border-radius: 50%;
  border: 1px solid currentColor; animation: wave 2.2s var(--ease) infinite;
}
.pulse--live { color: #22C55E; }
@keyframes wave { 0% { transform: scale(.35); opacity: 1; } 100% { transform: scale(1.5); opacity: 0; } }

/* ------------------------------------------------------------ preloader */
.preloader {
  position: fixed; inset: 0; z-index: 300;
  display: grid; place-items: center;
  background: var(--dark); color: var(--light);
  clip-path: inset(0 0 0 0);
  transition: clip-path 1.1s var(--ease-io);
}
.preloader.is-done { clip-path: inset(0 0 100% 0); }
.skip-preload .preloader, html:not(.js) .preloader { display: none; }
.preloader__word { display: flex; overflow: hidden; font: 800 clamp(72px, 17vw, 260px)/1 var(--font-d); letter-spacing: -.05em; }
.preloader__word span { display: inline-block; transform: translate3d(0, 110%, 0); animation: rise 1s var(--ease) forwards; animation-delay: calc(var(--i) * 90ms + 120ms); }
.preloader__word span:nth-child(2) { background: var(--irid); background-size: 300% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: rise 1s var(--ease) forwards, irid-move 3s linear infinite; animation-delay: calc(var(--i) * 90ms + 120ms), 0s; }
.preloader__meta {
  position: absolute; left: var(--pad); right: var(--pad); bottom: 44px;
  display: flex; justify-content: space-between; align-items: flex-end;
  font: 700 12px var(--font-b); letter-spacing: .16em; text-transform: uppercase;
}
.preloader__count b { font: 700 56px/1 var(--font-d); letter-spacing: -.04em; font-variant-numeric: tabular-nums; }
.preloader__bar { position: absolute; left: 0; right: 0; bottom: 0; height: 3px; background: rgba(255, 255, 255, .08); }
.preloader__bar i { display: block; height: 100%; background: var(--irid); transform-origin: 0 50%; transform: scaleX(0); }
@keyframes rise { to { transform: none; } }

/* màn chuyển trang (fallback khi trình duyệt chưa có cross-document View Transitions) */
.curtain {
  position: fixed; inset: 0; z-index: 290; pointer-events: none;
  display: grid; place-items: center;
  background: var(--dark); color: var(--light);
  font: 800 clamp(48px, 10vw, 140px)/1 var(--font-d); letter-spacing: -.05em;
  transform: translate3d(0, 100%, 0);
}
.is-leaving .curtain { transform: none; transition: transform .6s var(--ease-io); }
.is-arriving .curtain { transform: none; }
.is-arriving.is-arrived .curtain { transform: translate3d(0, -100%, 0); transition: transform .9s var(--ease-io); }

/* --------------------------------------------------------------- cursor */
.cursor { position: fixed; left: 0; top: 0; z-index: 280; pointer-events: none; mix-blend-mode: difference; display: none; }
.has-cursor .cursor { display: block; }
.cursor.is-hidden { opacity: 0; }
.cursor__dot, .cursor__ring { position: absolute; left: 0; top: 0; will-change: transform; }
.cursor__dot { width: 6px; height: 6px; margin: -3px 0 0 -3px; border-radius: 50%; background: #fff; }
.cursor__ring {
  width: 40px; height: 40px; margin: -20px 0 0 -20px;
  display: grid; place-items: center;
  border: 1px solid rgba(255, 255, 255, .85); border-radius: 50%;
  transition: width .5s var(--ease), height .5s var(--ease), margin .5s var(--ease), background-color .35s, border-color .35s;
}
.cursor.is-link .cursor__ring { width: 66px; height: 66px; margin: -33px 0 0 -33px; }
.cursor.is-label .cursor__ring { width: 100px; height: 100px; margin: -50px 0 0 -50px; background: #fff; border-color: #fff; }
.cursor__label { font: 800 12px var(--font-b); letter-spacing: .12em; text-transform: uppercase; color: #000; opacity: 0; transform: scale(.5); transition: opacity .3s, transform .5s var(--ease); }
.cursor.is-label .cursor__label { opacity: 1; transform: none; }
.cursor.is-down .cursor__ring { width: 30px; height: 30px; margin: -15px 0 0 -15px; }

/* --------------------------------------------------------------- header */
.hdr {
  position: fixed; z-index: 120; top: 0; left: 0; right: 0;
  height: var(--hdr-h); padding: 0 var(--pad);
  display: flex; align-items: center; gap: 32px;
  color: #fff; mix-blend-mode: difference;
  transition: transform .8s var(--ease);
}
.hdr.is-hidden { transform: translate3d(0, -110%, 0); }
.hdr__logo { font: 800 22px/1 var(--font-d); letter-spacing: -.05em; }
.hdr__logo sup { font-size: 10px; margin-left: 2px; }
.hdr__nav { display: flex; gap: 30px; margin: 0 auto; font: 600 14px/1.2 var(--font-b); }
.hdr__cta {
  display: inline-flex; align-items: center; gap: 12px;
  height: 44px; padding: 0 20px; border: 1px solid rgba(255, 255, 255, .7); border-radius: 999px;
  font: 700 14px/1 var(--font-b);
}
.hdr__burger { width: 44px; height: 44px; display: grid; place-content: center; gap: 7px; }
.hdr__burger span { display: block; width: 26px; height: 2px; background: currentColor; transition: transform .5s var(--ease); }
.hdr__burger:hover span:first-child { transform: translate3d(-5px, 0, 0); }
.hdr__burger:hover span:last-child { transform: translate3d(5px, 0, 0); }

/* ----------------------------------------------------------------- menu */
.menu {
  position: fixed; inset: 0; z-index: 150;
  display: grid; grid-template-columns: 1.25fr 1fr; grid-template-rows: 1fr auto; gap: 4vw;
  padding: calc(var(--hdr-h) + 3vh) var(--pad) 36px;
  background: var(--dark); color: var(--light);
  clip-path: circle(0 at var(--mx, 95%) var(--my, 4%));
  visibility: hidden;
  transition: clip-path 1s var(--ease-io), visibility 0s linear 1s;
}
.menu.is-open { clip-path: circle(150vmax at var(--mx, 95%) var(--my, 4%)); visibility: visible; transition: clip-path 1s var(--ease-io), visibility 0s; }
.menu__nav { display: flex; flex-direction: column; justify-content: center; gap: 1.5vh; }
.menu__link { display: flex; align-items: baseline; gap: 22px; overflow: hidden; font: 600 clamp(44px, 7.4vw, 120px)/1.02 var(--font-d); letter-spacing: -.05em; }
.menu__txt { display: inline-block; transform: translate3d(0, 110%, 0); transition: transform .9s var(--ease), color .35s; }
.menu.is-open .menu__txt { transform: none; transition-delay: calc(var(--i) * 70ms + 250ms), 0s; }
.menu__num { font: 700 13px var(--font-b); letter-spacing: .14em; opacity: .5; }
.menu__nav:hover .menu__link:not(:hover) .menu__txt { color: rgba(243, 241, 236, .25); }
.menu__preview { position: relative; align-self: center; width: 100%; max-height: 70vh; aspect-ratio: 4 / 5; border-radius: var(--radius); overflow: hidden; }
.menu__preview .art { clip-path: inset(100% 0 0 0); transition: clip-path .9s var(--ease-io); }
.menu__preview .art.is-active { clip-path: inset(0 0 0 0); }
.menu__foot { grid-column: 1 / -1; display: flex; justify-content: space-between; font: 700 12px var(--font-b); letter-spacing: .14em; text-transform: uppercase; opacity: .6; }
.menu__close {
  position: absolute; top: 20px; right: var(--pad); height: 44px; padding: 0 20px;
  border: 1px solid rgba(255, 255, 255, .3); border-radius: 999px;
  font: 700 12px var(--font-b); letter-spacing: .14em; text-transform: uppercase;
}

/* --------------------------------------------------- generative "art" */
.art {
  position: absolute; inset: 0; overflow: hidden; isolation: isolate;
  container-type: size; border-radius: inherit;
  background: hsl(var(--h1) 60% 90%);
}
.art__bg {
  position: absolute; inset: -12%;
  background:
    radial-gradient(55% 50% at 22% 24%, hsl(var(--h1) 96% 72%) 0%, transparent 62%),
    radial-gradient(52% 58% at 82% 28%, hsl(var(--h2) 92% 68%) 0%, transparent 62%),
    radial-gradient(70% 62% at 58% 88%, hsl(calc(var(--h1) + 42) 92% 76%) 0%, transparent 66%),
    linear-gradient(160deg, hsl(var(--h1) 64% 88%), hsl(var(--h2) 70% 84%));
  animation: art-drift 16s ease-in-out infinite alternate;
}
@keyframes art-drift { to { transform: translate3d(4%, -3%, 0) rotate(10deg) scale(1.1); } }
.art__par { position: absolute; inset: 0; transform: translate3d(var(--px, 0px), var(--py, 0px), 0); }
.art__s {
  position: absolute; display: block; border-radius: 50%;
  background: linear-gradient(140deg, rgba(255, 255, 255, .72), rgba(255, 255, 255, .06) 48%, hsl(var(--h2) 92% 72% / .4));
  box-shadow:
    inset 2px 2px 1px rgba(255, 255, 255, .9),
    inset -14px -18px 36px hsl(var(--h1) 80% 34% / .26),
    0 30px 60px -22px hsl(var(--h1) 70% 26% / .5);
  animation: float 9s ease-in-out infinite;
}
.art__s--ring, .art__s--orb { -webkit-backdrop-filter: blur(12px) saturate(1.6); backdrop-filter: blur(12px) saturate(1.6); }
.art__s--ring {
  width: 58cqmin; aspect-ratio: 1; left: 6%; top: 10%; --r: -16deg;
  -webkit-mask: radial-gradient(farthest-side, transparent 55%, #000 56.5%);
  mask: radial-gradient(farthest-side, transparent 55%, #000 56.5%);
}
.art__s--pill { width: 24cqmin; height: 60cqmin; border-radius: 999px; right: 12%; top: 16%; --r: 30deg; animation-duration: 11s; animation-delay: -3s; }
.art__s--orb { width: 30cqmin; aspect-ratio: 1; left: 44%; bottom: 7%; animation-duration: 8s; animation-delay: -5s; }
.art__s--dot { width: 9cqmin; aspect-ratio: 1; right: 30%; bottom: 20%; animation-duration: 7s; animation-delay: -2s; }
.art--b .art__s--ring { left: auto; top: auto; right: 2%; bottom: 4%; width: 66cqmin; }
.art--b .art__s--pill { right: auto; left: 12%; top: 8%; --r: -38deg; }
.art--b .art__s--orb { left: auto; right: 20%; bottom: auto; top: 8%; width: 22cqmin; }
.art--b .art__s--dot { right: auto; left: 22%; bottom: 14%; }
.art--c .art__s--ring { left: 14%; top: 14%; width: 72cqmin; }
.art--c .art__s--pill { right: 6%; top: auto; bottom: 8%; height: 46cqmin; --r: 64deg; }
.art--c .art__s--orb { left: 6%; bottom: auto; top: 6%; width: 26cqmin; }
.art--c .art__s--dot { right: 16%; bottom: auto; top: 14%; }
.art__grain {
  position: absolute; inset: 0; pointer-events: none; opacity: .22; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .6 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
@keyframes float {
  0%, 100% { transform: translate3d(0, 0, 0) rotate(var(--r, 0deg)); }
  50% { transform: translate3d(0, -8%, 0) rotate(calc(var(--r, 0deg) + 9deg)); }
}

/* ----------------------------------------------------------------- hero */
.hero { padding: calc(var(--hdr-h) + 6vh) var(--pad) 0; }
.hero__top { display: flex; justify-content: space-between; gap: 24px; margin-bottom: 4vh; font: 700 12px/1.3 var(--font-b); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); }
.hero__status { display: inline-flex; align-items: center; gap: 14px; }
.hero__copy { will-change: transform, opacity; }
.hero__title { max-width: 14ch; font: 600 clamp(52px, 10.6vw, 200px)/.9 var(--font-d); letter-spacing: -.055em; }
.hero__title em { font-style: normal; }
.hero__title em .w__i {
  background: var(--irid); background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: irid-move 6s linear infinite;
}
.hero__row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 40px; margin-top: 5vh; }
.hero__lead { max-width: 440px; font-size: clamp(17px, 1.3vw, 20px); color: var(--ink-2); }
.hero__actions { display: flex; align-items: center; gap: 32px; }
.rating { display: flex; align-items: center; gap: 14px; font: 600 14px/1.35 var(--font-b); }
.rating small { color: var(--ink-2); font-size: 13px; }
.rating__stars { color: #F5B301; letter-spacing: .1em; }
.rating__faces { display: flex; padding-left: 10px; }
.rating__faces i {
  width: 38px; height: 38px; margin-left: -10px; border-radius: 50%; border: 2px solid var(--bg);
  background: conic-gradient(from 200deg, hsl(var(--h) 92% 72%), hsl(calc(var(--h) + 70) 92% 70%), hsl(var(--h) 92% 72%));
}
.badge { position: absolute; right: var(--pad); top: calc(var(--hdr-h) + 16vh); width: clamp(116px, 10vw, 156px); aspect-ratio: 1; }
.badge svg { width: 100%; height: 100%; overflow: visible; will-change: transform; }
.badge text { font: 700 13.5px var(--font-b); letter-spacing: .22em; fill: currentColor; }
.badge__core { position: absolute; inset: 29%; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--bg); font-size: 22px; }

/* Khung shader: wrapper cao 190vh, stage sticky 100vh, tràn ra sát mép màn hình (bù padding của hero).
   JS chỉ đổi clip-path của panel (thẻ bo góc → full màn hình) nên canvas không phải resize lúc cuộn. */
.hero__media { position: relative; height: 190vh; margin: 7vh calc(var(--pad) * -1) 0; }
.hero__stage { position: sticky; top: 0; height: 100vh; }
.js .hero__stage { opacity: 0; transform: translate3d(0, 10vh, 0); transition: opacity 1.2s var(--ease) .5s, transform 1.4s var(--ease) .5s; }
.js.is-ready .hero__stage { opacity: 1; transform: none; }
.hero__panel {
  --cl: 0px; --cr: 0px; --cb: 0px;
  position: absolute; inset: 0; overflow: hidden;
  background: linear-gradient(120deg, #CFC6FF, #BEF2EC 45%, #FFD0DE 75%, #FFE8B2);
}
.hero__statement {
  position: absolute; left: 50%; top: 50%; z-index: 2;
  width: max-content; max-width: 92vw; text-align: center; pointer-events: none;
  font: 600 clamp(44px, 8.4vw, 156px)/.94 var(--font-d); letter-spacing: -.055em; color: #0E0E12;
  opacity: 0; transform: translate3d(-50%, -50%, 0) scale(.9); will-change: transform, opacity;
}
.hero__gl { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero__glass { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.glass { position: absolute; will-change: transform; }
.glass--ring { width: 32%; aspect-ratio: 1; left: 5%; top: 8%; }
.glass--pill { width: 12%; aspect-ratio: 1 / 2.5; right: 11%; top: 7%; }
.glass--orb { width: 17%; aspect-ratio: 1; left: 47%; bottom: -3%; }
.glass--tile { width: 12%; aspect-ratio: 1; right: 30%; bottom: 13%; }
.gshape {
  position: absolute; inset: 0; display: block; border-radius: 50%;
  background: linear-gradient(145deg, rgba(255, 255, 255, .66), rgba(255, 255, 255, .04) 50%, rgba(255, 255, 255, .34));
  box-shadow:
    inset 3px 3px 2px rgba(255, 255, 255, .85),
    inset -20px -26px 50px rgba(64, 28, 150, .22),
    0 46px 80px -26px rgba(40, 18, 96, .42);
  -webkit-backdrop-filter: blur(16px) saturate(1.7); backdrop-filter: blur(16px) saturate(1.7);
  animation: float 10s ease-in-out infinite;
}
.gshape--ring { --r: -12deg; -webkit-mask: radial-gradient(farthest-side, transparent 54%, #000 55.5%); mask: radial-gradient(farthest-side, transparent 54%, #000 55.5%); }
.gshape--pill { border-radius: 999px; --r: 26deg; animation-duration: 12s; animation-delay: -4s; }
.gshape--orb { animation-duration: 9s; animation-delay: -2s; }
.gshape--tile { border-radius: 28%; --r: 18deg; animation-duration: 11s; animation-delay: -6s; }
.hero__chip {
  position: absolute; z-index: 2; padding: 10px 16px; border-radius: 999px;
  background: rgba(255, 255, 255, .42); color: #0E0E12;
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  font: 700 12px/1 var(--font-b); letter-spacing: .08em; text-transform: uppercase;
}
/* chip bám theo mép thẻ trong lúc thẻ nở ra (JS cập nhật --cl/--cr/--cb) */
.hero__chip--tl { top: 20px; left: 20px; transform: translate3d(var(--cl), 0, 0); }
.hero__chip--bl { bottom: 20px; left: 20px; transform: translate3d(var(--cl), calc(var(--cb) * -1), 0); }
.hero__chip--br { bottom: 20px; right: 20px; transform: translate3d(calc(var(--cr) * -1), calc(var(--cb) * -1), 0); font-variant-numeric: tabular-nums; }

/* ------------------------------------------------------------ manifesto */
.manifesto { display: grid; grid-template-columns: minmax(150px, 1fr) 4fr; gap: 40px; padding: 24vh var(--pad) 18vh; }
.manifesto__label { padding-top: .9em; }
.manifesto__text { font: 600 clamp(28px, 4.1vw, 70px)/1.14 var(--font-b); letter-spacing: -.035em; }
.mw { transition: opacity .2s linear; }
.chip { position: relative; display: inline-block; width: 1.9em; height: .84em; margin: 0 .06em; border-radius: 999px; overflow: hidden; vertical-align: -.06em; }

/* -------------------------------------------------------------- marquee */
.marquee { overflow: hidden; padding: 4vh 0 10vh; }
.marquee__row { white-space: nowrap; font: 700 clamp(56px, 11vw, 200px)/1.08 var(--font-d); letter-spacing: -.05em; }
.marquee__inner { display: inline-flex; gap: .32em; padding-right: .32em; will-change: transform; }
.marquee__row--outline { color: var(--ghost); }
.marquee .star { background: var(--irid); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: irid-move 4s linear infinite; }

/* ------------------------------------------------- we create (pinned) */
.create { height: 360vh; }
.create__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; display: grid; place-items: center; padding: 0 var(--pad); }
.create__title { position: relative; z-index: 1; text-align: center; font: 600 clamp(38px, 7vw, 128px)/1.04 var(--font-d); letter-spacing: -.05em; }
.create__lead { display: block; margin-bottom: 4vh; font: 700 12px/1.3 var(--font-b); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); }
.slotwrap { position: relative; display: inline-block; vertical-align: top; }
.slot { display: block; height: 1.16em; overflow: hidden; transition: width .8s var(--ease); }
.slot__list { display: flex; flex-direction: column; align-items: flex-start; transition: transform .9s var(--ease); }
.slot__list > span {
  display: block; width: max-content; height: 1.16em; line-height: 1.16;
  background: var(--irid); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: irid-move 7s linear infinite;
}
.slot__sel { position: absolute; inset: -.06em -.16em -.02em; border: 2px solid var(--sel, var(--violet)); border-radius: 4px; pointer-events: none; transition: border-color .5s; }
.slot__sel i { position: absolute; width: 11px; height: 11px; background: #fff; border: 2px solid var(--sel, var(--violet)); transition: border-color .5s; }
.slot__sel i:nth-child(1) { left: -6px; top: -6px; }
.slot__sel i:nth-child(2) { right: -6px; top: -6px; }
.slot__sel i:nth-child(3) { left: -6px; bottom: -6px; }
.slot__sel i:nth-child(4) { right: -6px; bottom: -6px; }
.slot__tag {
  position: absolute; left: -2px; bottom: calc(100% + 8px);
  padding: 6px 10px; border-radius: 8px 8px 8px 0;
  background: var(--sel, var(--violet)); color: #fff;
  font: 700 13px/1 var(--font-b); letter-spacing: 0; white-space: nowrap;
  transition: background-color .5s;
}
.create__cursors { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.ccursor { position: absolute; left: 0; top: 0; color: var(--c); will-change: transform; }
.ccursor svg { width: 24px; height: 24px; fill: currentColor; stroke: #fff; stroke-width: 1.6; stroke-linejoin: round; filter: drop-shadow(0 6px 10px rgba(0, 0, 0, .18)); }
.ccursor span { position: absolute; left: 20px; top: 20px; padding: 6px 11px; border-radius: 999px; background: var(--c); color: #fff; font: 700 12px/1 var(--font-b); white-space: nowrap; }
.create__dots { position: absolute; right: var(--pad); top: 50%; display: grid; gap: 12px; transform: translateY(-50%); }
.create__dots i { width: 8px; height: 8px; border-radius: 50%; background: var(--line); transition: background-color .4s, transform .5s var(--ease); }
.create__dots i.is-on { background: var(--ink); transform: scale(1.5); }
.create__hint { position: absolute; left: 50%; bottom: 5vh; display: flex; align-items: center; gap: 12px; transform: translateX(-50%); font: 700 12px var(--font-b); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); }
.create__hint span { position: relative; width: 1px; height: 36px; overflow: hidden; background: var(--line); }
.create__hint span::after { content: ""; position: absolute; left: 0; top: 0; width: 1px; height: 40%; background: var(--ink); animation: drip 1.8s var(--ease-io) infinite; }
@keyframes drip { from { transform: translateY(-100%); } to { transform: translateY(260%); } }

/* -------------------------------------------------------- section heads */
.sec-head { display: grid; grid-template-columns: minmax(150px, 1fr) 4fr; align-items: end; gap: 18px 40px; padding: 0 var(--pad); margin-bottom: 9vh; }
.sec-head h2 { font: 600 clamp(40px, 6.2vw, 112px)/.95 var(--font-d); letter-spacing: -.05em; }
.sec-head .eyebrow { padding-bottom: .9em; }
.sec-head .lead { grid-column: 2; max-width: 520px; font-size: clamp(16px, 1.25vw, 19px); color: var(--ink-2); }

/* ------------------------------------------------------ services stack */
.services { padding: 18vh 0 8vh; }
.stack { padding: 0 var(--pad); perspective: 1800px; }
.stack__card {
  position: sticky; top: calc(var(--hdr-h) + 1vh + var(--i) * 24px);
  display: grid; grid-template-columns: 1.08fr 1fr; gap: 4vw;
  height: min(76vh, 780px); min-height: 520px; margin-bottom: 7vh;
  padding: clamp(24px, 4vw, 64px); overflow: hidden;
  border-radius: var(--radius); background: var(--card-bg); color: var(--card-ink);
  transform-origin: 50% 0; will-change: transform;
}
.stack__body { display: flex; flex-direction: column; }
.stack__num { font: 700 13px var(--font-b); letter-spacing: .16em; opacity: .55; }
.stack__title { margin: auto 0 3vh; font: 600 clamp(36px, 5.2vw, 92px)/.92 var(--font-d); letter-spacing: -.05em; }
.stack__desc { max-width: 470px; font-size: clamp(16px, 1.25vw, 20px); opacity: .78; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4vh; padding: 0; list-style: none; }
.tags li { padding: 9px 15px; border-radius: 999px; box-shadow: inset 0 0 0 1px currentColor; font: 700 13px/1 var(--font-b); opacity: .8; }
.stack__art { position: relative; overflow: hidden; border-radius: calc(var(--radius) * .7); }
.stack__shade { position: absolute; inset: 0; z-index: 3; background: #000; opacity: 0; pointer-events: none; }

/* -------------------------------------------- work (ghim, cuộn ngang) */
.work__sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; display: flex; flex-direction: column; justify-content: center; gap: 5vh; }
.work__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; padding: 0 var(--pad); }
.work__head h2 { margin-top: 14px; font: 600 clamp(40px, 6vw, 104px)/.95 var(--font-d); letter-spacing: -.05em; }
.work__count { font: 700 14px var(--font-b); letter-spacing: .14em; color: var(--ink-2); white-space: nowrap; }
.work__count b { font: 700 44px/1 var(--font-d); letter-spacing: -.04em; color: var(--ink); font-variant-numeric: tabular-nums; }
.work__track { display: flex; gap: clamp(16px, 2.4vw, 40px); width: max-content; padding: 0 var(--pad); will-change: transform; }
.pcard { display: block; flex: none; width: clamp(280px, 28vw, 500px); perspective: 1000px; }
.pcard__frame {
  position: relative; overflow: hidden; aspect-ratio: 4 / 5; border-radius: var(--radius);
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform .6s var(--ease);
}
.pcard__frame::after {
  content: ""; position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: radial-gradient(circle at var(--gx, 50%) var(--gy, 50%), rgba(255, 255, 255, .5), transparent 46%);
  mix-blend-mode: soft-light; opacity: 0; transition: opacity .4s;
}
.pcard:hover .pcard__frame::after { opacity: 1; }
.pcard__meta { display: flex; justify-content: space-between; gap: 16px; margin-top: 20px; }
.pcard__title { font: 600 clamp(22px, 2vw, 34px)/1.05 var(--font-d); letter-spacing: -.04em; }
.pcard__tag { margin-top: 6px; font-size: 15px; color: var(--ink-2); }
.pcard__year { font: 700 13px var(--font-b); letter-spacing: .14em; color: var(--ink-2); }
.pcard--cta .pcard__frame { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; gap: 32px; padding: 9%; background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.pcard--cta strong { font: 600 clamp(28px, 3vw, 50px)/1.02 var(--font-d); letter-spacing: -.05em; }
.work__progress { height: 2px; margin: 0 var(--pad); background: var(--line); }
.work__progress i { display: block; height: 100%; background: var(--irid); transform-origin: 0 50%; transform: scaleX(0); }
.work:not(.is-pinned) .work__track { width: auto; overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--pad); scrollbar-width: none; padding-bottom: 8px; }
.work:not(.is-pinned) .work__track::-webkit-scrollbar { display: none; }
.work:not(.is-pinned) .pcard { scroll-snap-align: start; }
.work:not(.is-pinned) .work__sticky { position: relative; height: auto; padding: 14vh 0; }

/* -------------------------------------------------------------- kinetic */
.kinetic { height: 135vh; overflow: hidden; display: grid; place-items: center; perspective: 1100px; }
.kinetic__stage { display: grid; gap: .08em; transform: rotateX(24deg) rotateZ(-10deg); font: 700 clamp(40px, 6.2vw, 108px)/.94 var(--font-d); letter-spacing: -.045em; text-transform: uppercase; white-space: nowrap; }
.kinetic__line { will-change: transform; }
.kinetic__line:nth-child(odd) { color: var(--ghost); }
.kinetic__line.is-hl { background: var(--irid); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: irid-move 5s linear infinite; }

/* ---------------------------------------------------------------- stats */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; padding: 6vh var(--pad) 8vh; }
.stats__label { grid-column: 1 / -1; margin-bottom: 4vh; }
.stat { padding-top: 26px; border-top: 1px solid var(--line); }
.stat__ring { width: 64px; height: 64px; transform: rotate(-90deg); }
.stat__ring circle { fill: none; stroke-width: 3; }
.stat__bg { stroke: var(--line); }
.stat__fg { stroke: url(#irid); stroke-linecap: round; transition: stroke-dashoffset 2.2s var(--ease); }
.stat__num { display: block; margin: 26px 0 10px; font: 600 clamp(52px, 6.4vw, 112px)/1 var(--font-d); letter-spacing: -.06em; font-variant-numeric: tabular-nums; }
.stat p { color: var(--ink-2); }

/* -------------------------------------------------------------- process */
.process { padding: 18vh 0 22vh; }
.process__list { display: grid; gap: 0; margin: 0; padding: 0 var(--pad); list-style: none; }
.process__item { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 3vw; transform-origin: 50% 50%; will-change: transform, opacity; }
.process__n { justify-self: end; font: 700 13px var(--font-b); letter-spacing: .16em; color: var(--ink-2); }
.process__word { font: 700 clamp(52px, 9.6vw, 176px)/1.06 var(--font-d); letter-spacing: -.06em; text-align: center; }
.process__d { max-width: 260px; font-size: 15px; color: var(--ink-2); opacity: var(--f2, 0); }

/* --------------------------------------------------------------- voices */
.voices { padding: 8vh 0 18vh; }
.voices__viewport { overflow: hidden; padding: 0 var(--pad); touch-action: pan-y; user-select: none; -webkit-user-select: none; }
.voices__track { display: flex; gap: 24px; width: max-content; will-change: transform; }
.vcard {
  display: flex; flex-direction: column; gap: 30px; flex: none;
  width: clamp(290px, 34vw, 520px); min-height: 380px; padding: clamp(24px, 3vw, 44px);
  border-radius: var(--radius); background: var(--vbg, #fff); color: #0E0E12;
  box-shadow: 0 1px 0 rgba(14, 14, 18, .06), 0 30px 60px -40px rgba(14, 14, 18, .35);
}
.vcard__stars { color: #F5B301; letter-spacing: .14em; }
.vcard blockquote { font: 600 clamp(20px, 1.8vw, 28px)/1.32 var(--font-b); letter-spacing: -.02em; }
.vcard__who { display: flex; align-items: center; gap: 14px; margin-top: auto; }
.vcard__face { flex: none; width: 52px; height: 52px; border-radius: 50%; background: conic-gradient(from 120deg, hsl(var(--h) 92% 70%), hsl(calc(var(--h) + 80) 92% 72%), hsl(var(--h) 92% 70%)); }
.vcard__name { display: block; font-weight: 800; }
.vcard__role { display: block; font-size: 14px; color: rgba(14, 14, 18, .6); }

/* ------------------------------------------------------------------ cta */
.cta { display: grid; place-items: center; min-height: 112vh; padding: 16vh var(--pad); overflow: hidden; text-align: center; }
.cta__canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.cta__inner { position: relative; z-index: 1; display: grid; justify-items: center; }
.cta__title { margin-bottom: 7vh; font: 600 clamp(44px, 8vw, 150px)/.95 var(--font-d); letter-spacing: -.055em; }
.cta__btn {
  --s: clamp(170px, 15vw, 236px);
  position: relative; display: grid; place-items: center; width: var(--s); height: var(--s); border-radius: 50%;
  background: var(--irid); background-size: 200% 200%; color: #0E0E12;
  font: 800 15px/1.15 var(--font-b); letter-spacing: .08em; text-transform: uppercase;
  animation: irid-move 6s linear infinite; will-change: transform;
}
.cta__ring { position: absolute; inset: -22px; width: calc(100% + 44px); max-width: none; height: calc(100% + 44px); animation: spin 16s linear infinite; }
.cta__ring text { font: 700 12px var(--font-b); letter-spacing: .3em; fill: var(--ink); }
@keyframes spin { to { transform: rotate(360deg); } }

/* -------------------------------------------------------------- contact */
.contact { display: grid; grid-template-columns: 1fr 1.4fr; gap: 6vw; padding: 16vh var(--pad) 22vh; }
.contact__aside { align-self: start; position: sticky; top: calc(var(--hdr-h) + 4vh); }
.contact__title { margin: 3vh 0; font: 600 clamp(40px, 5.4vw, 96px)/.95 var(--font-d); letter-spacing: -.05em; }
.contact__meta { color: var(--ink-2); }
.contact__meta a { color: var(--ink); font-weight: 800; }
.form fieldset { margin: 0 0 6vh; padding: 0; border: 0; }
.form legend { margin-bottom: 18px; padding: 0; font: 700 12px/1.3 var(--font-b); letter-spacing: .16em; text-transform: uppercase; color: var(--ink-2); }
.pills { display: flex; flex-wrap: wrap; gap: 10px; }
.pill { position: relative; }
.pill input { position: absolute; opacity: 0; pointer-events: none; }
.pill span {
  display: inline-flex; align-items: center; height: 50px; padding: 0 24px; border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--line); font: 700 15px/1 var(--font-b);
  transition: background-color .35s, color .35s, box-shadow .35s, transform .5s var(--ease);
}
.pill:hover span { box-shadow: inset 0 0 0 1px var(--ink); }
.pill input:checked + span { background: var(--ink); color: var(--bg); transform: scale(1.05); }
.pill input:focus-visible + span { outline: 2px solid var(--violet); outline-offset: 3px; }
.field { position: relative; margin-bottom: 5vh; }
.field input, .field textarea {
  display: block; width: 100%; padding: 30px 0 12px; border: 0; border-bottom: 1px solid var(--line); border-radius: 0;
  background: transparent; color: inherit; font: 600 clamp(20px, 2vw, 30px)/1.3 var(--font-b); outline: none; resize: none;
}
.field label { position: absolute; left: 0; top: 30px; font: 600 clamp(20px, 2vw, 30px)/1.3 var(--font-b); color: var(--ink-2); pointer-events: none; transform-origin: 0 0; transition: transform .6s var(--ease), color .3s; }
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label { transform: translate3d(0, -28px, 0) scale(.5); color: var(--ink); }
.field::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; background: var(--irid); transform: scaleX(0); transform-origin: 0 50%; transition: transform .8s var(--ease); }
.field:focus-within::after { transform: none; }
.form__foot { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.form__submit { min-width: 72px; transition: color .5s var(--ease), padding .7s var(--ease), min-width .7s var(--ease); }
.form__check { position: absolute; left: 50%; top: 50%; width: 28px; height: 28px; margin: -14px 0 0 -14px; fill: none; stroke: currentColor; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 24; stroke-dashoffset: 24; transition: stroke-dashoffset .6s var(--ease) .35s; }
.form.is-sent .form__submit { padding: 0; width: 72px; }
.form.is-sent .form__label { opacity: 0; }
.form.is-sent .form__check { stroke-dashoffset: 0; }
.form__label { transition: opacity .3s; }
.form__note { font-size: 14px; color: var(--ink-2); }

/* ----------------------------------------------------- footer (rèm) */
.ftr { position: relative; z-index: 1; background: var(--dark); color: var(--light); --ink-2: rgba(243, 241, 236, .55); --line: rgba(243, 241, 236, .16); }
.ftr.is-fixed { position: fixed; left: 0; right: 0; bottom: 0; }
.ftr__inner { display: flex; flex-direction: column; justify-content: space-between; min-height: min(86vh, 900px); padding: 14vh var(--pad) 30px; will-change: transform; }
.ftr__top { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) auto; gap: 32px; }
.ftr__col .eyebrow { margin-bottom: 16px; }
.ftr__col p:not(.eyebrow) { color: rgba(243, 241, 236, .8); }
.ftr__mail { font: 600 clamp(20px, 2.2vw, 36px)/1.1 var(--font-d); letter-spacing: -.04em; }
.ftr__link { display: table; margin: 4px 0; font-weight: 700; }
.ftr__up { width: 84px; height: 84px; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(243, 241, 236, .3); font-size: 26px; }
.ftr__giant {
  display: flex; justify-content: space-between; overflow: hidden;
  margin: 6vh 0 3vh; font: 800 clamp(110px, 29vw, 560px)/.8 var(--font-d); letter-spacing: -.07em;
}
.ftr__giant span {
  /* letter-spacing âm làm glyph tràn khỏi box; nền gradient (background-clip:text) chỉ phủ trong box
     → nới padding + margin âm để mép chữ không bị cụt */
  display: inline-block; padding: .06em .12em; margin: 0 -.12em;
  background: var(--irid); background-size: 400% 100%; background-position: calc(var(--i) * 33%) 0;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  transform: translate3d(0, var(--fy, 0%), 0);
}
.ftr__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px; font: 700 12px var(--font-b); letter-spacing: .14em; text-transform: uppercase; color: rgba(243, 241, 236, .5); }

/* ------------------------------------------------------- single project */
.phero { padding: calc(var(--hdr-h) + 7vh) var(--pad) 10vh; }
.back { display: inline-flex; align-items: center; gap: 10px; margin-bottom: 6vh; font: 700 13px var(--font-b); letter-spacing: .14em; text-transform: uppercase; }
.phero__title { margin: 3vh 0 4vh; font: 600 clamp(56px, 12vw, 230px)/.88 var(--font-d); letter-spacing: -.06em; }
.phero__lead { max-width: 780px; font: 600 clamp(20px, 2vw, 34px)/1.28 var(--font-b); letter-spacing: -.025em; color: var(--ink-2); }
.phero__art { position: relative; height: min(86vh, 960px); min-height: 360px; margin-top: 9vh; overflow: hidden; border-radius: var(--radius); }
.pmeta { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; padding: 0 var(--pad) 14vh; }
.pmeta > div { padding-top: 18px; border-top: 1px solid var(--line); }
.pmeta dd { margin-top: 10px; font: 700 clamp(17px, 1.4vw, 21px)/1.3 var(--font-b); }
.pbody { display: grid; grid-template-columns: minmax(150px, 1fr) 3fr; gap: 40px; padding: 0 var(--pad) 14vh; }
.pbody__content h2 { margin: 12vh 0 3vh; font: 600 clamp(30px, 3.4vw, 58px)/1 var(--font-d); letter-spacing: -.05em; }
.pbody__content h2:first-child { margin-top: 0; }
.pbody__content p { max-width: 780px; font-size: clamp(18px, 1.6vw, 25px); line-height: 1.5; color: var(--ink-2); }
.pbody__content ul { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; padding: 0; list-style: none; }
.pbody__content li { padding-top: 18px; border-top: 1px solid var(--line); font: 600 17px/1.4 var(--font-b); color: var(--ink-2); }
.pbody__content li strong { display: block; margin-bottom: 10px; font: 600 clamp(44px, 5vw, 88px)/1 var(--font-d); letter-spacing: -.06em; color: var(--ink); }
.pgallery { display: grid; grid-template-columns: 1.3fr 1fr; gap: 24px; padding: 0 var(--pad) 16vh; }
.pgallery figure { position: relative; overflow: hidden; border-radius: var(--radius); aspect-ratio: 4 / 3; }
.pgallery figure:first-child { grid-row: span 2; aspect-ratio: auto; min-height: 70vh; }
.pgallery .art { inset: -14% 0; border-radius: 0; will-change: transform; }
.pnext { padding: 12vh var(--pad) 20vh; }
.pnext a { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 5vw; }
.pnext__text { display: grid; gap: 22px; }
.pnext__title { font: 600 clamp(48px, 8.4vw, 160px)/.9 var(--font-d); letter-spacing: -.06em; transition: letter-spacing .8s var(--ease); }
.pnext a:hover .pnext__title { letter-spacing: -.03em; }
.pnext__tag { color: var(--ink-2); font-size: 18px; }
.pnext__art { position: relative; display: block; overflow: hidden; aspect-ratio: 16 / 11; border-radius: var(--radius); transition: transform .9s var(--ease); }
.pnext a:hover .pnext__art { transform: scale(.96) rotate(-1.5deg); }

.plain { display: grid; align-content: center; justify-items: start; gap: 4vh; min-height: 100vh; padding: var(--hdr-h) var(--pad); }
.plain__title { font: 600 clamp(48px, 9vw, 160px)/.92 var(--font-d); letter-spacing: -.055em; }

/* ------------------------------------------- View Transitions (MPA) */
::view-transition-old(root) { animation: .55s var(--ease-io) both vt-out; }
::view-transition-new(root) { animation: .85s var(--ease) .12s both vt-in; }
::view-transition-group(*) { animation-duration: .95s; animation-timing-function: var(--ease); }
@keyframes vt-out { to { opacity: 0; transform: translate3d(0, -3vh, 0) scale(.985); } }
@keyframes vt-in { from { opacity: 0; transform: translate3d(0, 6vh, 0); } }

/* ---------------------------------------------------------- responsive */
@media (max-width: 900px) {
  :root { --hdr-h: 68px; }
  .hdr { gap: 12px; }
  .hdr__nav { display: none; }
  .hdr__cta { margin-left: auto; height: 40px; padding: 0 16px; }
  .hero__top { flex-direction: column; gap: 10px; }
  .hero__title { max-width: none; }
  .hero__row { grid-template-columns: 1fr; gap: 28px; }
  .hero__actions { flex-wrap: wrap; gap: 20px; }
  .badge { top: auto; bottom: calc(min(86vh, 920px) + 2vh); width: 96px; display: none; }
  .glass--ring { width: 46%; }
  .glass--pill { width: 18%; }
  .glass--orb { width: 26%; }
  .glass--tile { width: 18%; }
  .hero__chip--tl { display: none; }
  .manifesto, .sec-head, .pbody { grid-template-columns: 1fr; }
  .sec-head .lead { grid-column: 1; }
  .create { height: 300vh; }
  .create__title { font-size: clamp(30px, 9vw, 64px); }
  /* màn hẹp: cụm chữ trong slot được xuống 2 dòng, mỗi ô cao đúng 2 dòng nên phép dịch -i/n vẫn đúng */
  .slot { height: 2.32em; }
  .slot__list > span {
    display: flex; align-items: center; justify-content: center;
    height: 2.32em; max-width: calc(100vw - 2 * var(--pad) - 16px);
    white-space: normal; text-align: center;
  }
  .create__dots { right: 10px; }
  .stack__card { grid-template-columns: 1fr; grid-template-rows: auto 1fr; gap: 20px; height: 78vh; min-height: 460px; }
  .stack__title { margin: 2vh 0; }
  .tags { margin-top: 2vh; }
  .pcard { width: 76vw; }
  .kinetic { height: 90vh; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 48px; }
  .process__item { grid-template-columns: 1fr; gap: 4px; text-align: center; }
  .process__n, .process__d { display: none; }
  .vcard { width: 82vw; min-height: 340px; }
  .contact { grid-template-columns: 1fr; }
  .contact__aside { position: static; }
  .menu { grid-template-columns: 1fr; }
  .menu__preview { display: none; }
  .ftr__top { grid-template-columns: 1fr 1fr; }
  .ftr__up { display: none; }
  .pmeta { grid-template-columns: 1fr 1fr; }
  .pbody__content ul { grid-template-columns: 1fr; }
  .pgallery { grid-template-columns: 1fr; }
  .pgallery figure:first-child { min-height: 60vh; }
  .pnext a { grid-template-columns: 1fr; }
  /* backdrop-filter tốn GPU nhất trên máy yếu → tắt trên màn nhỏ, giữ gradient */
  .art__s, .gshape { -webkit-backdrop-filter: none; backdrop-filter: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .js [data-reveal], .js [data-intro], .js [data-split] .w__i, .js [data-split] .c { opacity: 1 !important; transform: none !important; }
  .js .hero__stage { opacity: 1; transform: none; }
  .preloader, .curtain { display: none; }
}