/* ==========================================================================
   TAKI ACADEMY · SCROLL STORY
   Bố cục và chuyển động học từ portfolio Lê Tuấn Việt. Màu, font, nội dung, ảnh lấy từ taki.vn.
   Màu chủ đạo taki.vn: xanh #0b4ee6 · navy #0b1b4d · nền #f4f8ff · nền tối #071234 · font Be Vietnam Pro
   ========================================================================== */
:root{
  --bg:#f4f8ff; --bg-2:#fafaff; --blue-100:#e6eeff; --blue-200:#c9d6f5; --blue-300:#8fb4ff;
  --primary:#0b4ee6; --primary-600:#2563eb; --glow:#1d5cff; --royal:#1d3f9a;
  --navy:#0b1b4d; --deep:#071234;
  --ink:#0b1b4d; --ink-2:#334155; --ink-3:#475569; --text:#333;
  --star:#ffe100;

  --ink-rgb:11 27 77; --bg-rgb:244 248 255; --primary-rgb:11 78 230; --glow-rgb:29 92 255; --sky-rgb:143 180 255; --shadow-rgb:11 27 77;
  --line:rgb(var(--ink-rgb) / .12); --line-light:rgb(var(--bg-rgb) / .14);

  --grad-text:linear-gradient(100deg,#0b1b4d 0%,#0b4ee6 55%,#3b82f6 100%);
  --grad-text-light:linear-gradient(100deg,#ffffff 0%,#c9d6f5 45%,#8fb4ff 100%);
  --grad-lux:linear-gradient(160deg,#fafaff 0%,#f4f8ff 55%,#e6eeff 100%);
  --grad-dark:radial-gradient(70% 60% at 100% 0%,rgb(29 92 255 / .34),transparent 70%),radial-gradient(50% 50% at 0% 100%,rgb(143 180 255 / .12),transparent 70%),linear-gradient(150deg,#071234 0%,#0b1b4d 55%,#10276b 100%);
  --grad-btn-hover:linear-gradient(120deg,#2563eb 0%,#0b4ee6 50%,#1d3f9a 100%);
  --grad-sheen:linear-gradient(115deg,#8fb4ff 0%,#fff 30%,#1d5cff 55%,#8fb4ff 80%,#fff 100%);

  --font:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
  --r-sm:14px; --r-md:20px; --r-lg:28px; --r-xl:38px;
  --shadow-card:0 1px 0 rgba(255,255,255,.85) inset,0 30px 60px -38px rgb(var(--shadow-rgb) / .38),0 8px 18px -12px rgb(var(--shadow-rgb) / .14);
  --shadow-float:0 40px 80px -40px rgb(var(--shadow-rgb) / .55);
  --ease:cubic-bezier(.22,1,.36,1); --ease-io:cubic-bezier(.65,0,.35,1);
  --gutter:clamp(18px,4vw,44px); --maxw:1260px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.65;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
body.is-loading{overflow:hidden}
img,svg,canvas{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,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
::selection{background:var(--primary);color:#fff}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:8px}
.sr-only{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.ico{width:18px;height:18px;flex:none}
.skip{position:fixed;left:16px;top:-60px;z-index:1000;background:var(--ink);color:#fff;padding:10px 18px;border-radius:999px;transition:top .3s}
.skip:focus{top:16px}

/* ---------- Sections ---------- */
.section{position:relative;padding-block:clamp(88px,10vw,150px)}
.sec-ivory{background:radial-gradient(55% 45% at 100% 0%,rgb(143 180 255 / .22),transparent 70%),radial-gradient(40% 40% at 0% 100%,rgb(29 92 255 / .05),transparent 70%),var(--bg)}
.sec-lux{background:radial-gradient(50% 45% at 0% 0%,rgb(29 92 255 / .07),transparent 70%),radial-gradient(60% 55% at 100% 100%,rgb(201 214 245 / .6),transparent 70%),var(--grad-lux)}
.sec-dark{background:var(--grad-dark);color:var(--bg)}
main>section:not(.hero),.footer{position:relative;z-index:3}

/* ---------- Typography ---------- */
.h2{display:block;font-size:clamp(2rem,4.6vw,3.9rem);font-weight:800;line-height:1.12;letter-spacing:-.04em;color:var(--ink);text-wrap:balance}
.sec-dark .h2{color:#fff}
.grad{background:var(--grad-text);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.sec-dark .grad,.is-dark .grad{background:var(--grad-text-light);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent}
.grad .w{background:inherit;-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.desc{font-size:15px;line-height:1.75;color:var(--ink-3)}
.desc--lg{font-size:16.5px}
.sec-dark .desc,.is-dark .desc{color:rgb(var(--bg-rgb) / .7)}
.kicker{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--primary)}
.kicker::before{content:"";width:26px;height:1.5px;background:currentColor}
.sec-dark .kicker{color:var(--blue-300)}
.sec-head{display:grid;gap:18px;margin-bottom:clamp(40px,6vw,72px);min-width:0}
.sec-head__foot{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);gap:clamp(20px,4vw,60px);align-items:center}
.sec-head__rule{height:1px;background:var(--line);transform-origin:left;transform:scaleX(0);transition:transform 1.5s var(--ease) .25s}
.sec-dark .sec-head__rule{background:var(--line-light)}
.sec-head.in .sec-head__rule{transform:scaleX(1)}
.sec-head--aside{grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:clamp(16px,3vw,40px)}
.sec-head--aside>.h2{grid-area:1/1}
.sec-head--aside>.sec-head__top{grid-area:1/2;display:flex;justify-content:flex-end;align-items:center}
.sec-head--aside .sec-head__foot{grid-column:1/-1}

/* Chữ trồi lên theo từ (tiêu đề section) */
.h2 .w{display:inline-block;opacity:0;transform:translate3d(0,.55em,0);filter:blur(6px);transition:opacity .8s var(--ease),transform .9s var(--ease),filter .8s var(--ease);transition-delay:calc(var(--i,0) * 55ms)}
.h2.in .w{opacity:1;transform:none;filter:none}
.rv{opacity:0;transform:translate3d(0,28px,0);transition:opacity .9s var(--ease) calc(var(--d,0) * 90ms),transform 1s var(--ease) calc(var(--d,0) * 90ms)}
.rv.in{opacity:1;transform:none}

/* ---------- Buttons ---------- */
.btn{--bh:52px;position:relative;isolation:isolate;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:12px;height:var(--bh);padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;white-space:nowrap;transition:transform .5s var(--ease),box-shadow .5s var(--ease),background-color .4s,color .4s,border-color .4s}
.btn .ico{transition:transform .5s var(--ease)}
.btn:hover .ico--arrow{transform:translateX(4px)}
.btn::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(115deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:transform .9s var(--ease)}
.btn:hover::after{transform:translateX(120%)}
.btn--primary{background:var(--primary);color:#fff;box-shadow:0 16px 34px -18px rgb(var(--primary-rgb) / .9)}
.btn--primary::before{content:"";position:absolute;inset:0;z-index:-2;background:var(--grad-btn-hover);opacity:0;transition:opacity .5s var(--ease)}
.btn--primary:hover::before{opacity:1}
.btn--primary:hover{box-shadow:0 22px 44px -18px rgb(var(--glow-rgb) / .8)}
.btn--ghost{color:var(--primary);background:#fff;border:1px solid var(--primary)}
.btn--ghost:hover{background:var(--primary);color:#fff}
.btn--light{background:#fff;color:var(--primary);box-shadow:0 14px 30px -18px rgb(var(--shadow-rgb) / .5)}
.btn--light:hover{background:var(--blue-100)}
.btn--glass{color:#fff;border:1px solid rgb(255 255 255 / .42);background:rgb(255 255 255 / .1);backdrop-filter:blur(10px)}
.btn--glass:hover{background:#fff;color:var(--primary)}
.btn--sm{--bh:42px;padding:0 18px;font-size:14px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px}
.ripple{position:absolute;z-index:-1;border-radius:50%;pointer-events:none;background:currentColor;opacity:.2;transform:scale(0);animation:ripple .75s var(--ease) forwards}
@keyframes ripple{to{transform:scale(1);opacity:0}}
.round{position:relative;width:52px;height:52px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:rgba(255,255,255,.7);transition:background .4s,color .4s,border-color .4s,transform .5s var(--ease)}
.round:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.round svg{width:20px;height:20px}

/* ---------- Spotlight card ---------- */
.spot{isolation:isolate;position:relative}
.glow{position:absolute;inset:0;z-index:-1;border-radius:inherit;pointer-events:none;opacity:0;transition:opacity .5s var(--ease);background:radial-gradient(360px circle at var(--mx,50%) var(--my,50%),rgba(255,255,255,.95),rgba(255,255,255,0) 62%)}
.glow::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgb(var(--primary-rgb) / .75),rgb(var(--sky-rgb) / .3) 40%,transparent 65%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.spot:hover>.glow{opacity:1}
.spot.is-dark>.glow{background:radial-gradient(360px circle at var(--mx,50%) var(--my,50%),rgb(255 255 255 / .12),transparent 62%)}
.spot.is-dark>.glow::after{background:radial-gradient(240px circle at var(--mx,50%) var(--my,50%),rgb(255 255 255 / .6),transparent 65%)}

/* ---------- Grain, progress, preloader ---------- */
.grain{position:fixed;inset:-50%;z-index:90;pointer-events:none;opacity:.045;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");animation:grain 1.2s steps(6) infinite}
@keyframes grain{0%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-1%)}80%{transform:translate(3%,3%)}100%{transform:translate(0,0)}}
.progress{position:fixed;left:0;top:0;height:3px;width:100%;z-index:150;transform-origin:left;transform:scaleX(var(--sp,0));background:var(--grad-sheen);pointer-events:none}

.preloader{position:fixed;inset:0;z-index:200;display:grid;place-items:center;background:var(--grad-dark);color:var(--bg);clip-path:inset(0 0 0 0);transition:clip-path 1.15s var(--ease-io)}
.preloader.is-done{clip-path:inset(0 0 100% 0)}
.preloader.is-quick{transition-duration:.01s}
.preloader__center{display:grid;justify-items:center;gap:26px;text-align:center;padding:0 24px;transition:transform 1s var(--ease),opacity .8s}
.preloader.is-done .preloader__center{transform:translateY(-50px) scale(.97);opacity:0}
.preloader__logo{background:#fff;border-radius:22px;padding:14px 26px;box-shadow:0 30px 70px -30px rgb(29 92 255 / .8);opacity:0;transform:translateY(14px) scale(.96);animation:preIn .9s var(--ease) .1s forwards}
.preloader__logo img{height:56px;width:auto}
.preloader__slogan{font-size:clamp(1.6rem,4.4vw,3.2rem);font-weight:800;letter-spacing:-.04em;line-height:1.1}
.preloader__slogan .w{display:inline-block;opacity:0;transform:translateY(.6em);filter:blur(6px);animation:preIn .9s var(--ease) forwards;animation-delay:calc(.35s + var(--i) * .16s)}
.preloader__slogan .w:last-child{color:var(--blue-300)}
@keyframes preIn{to{opacity:1;transform:none;filter:none}}
.preloader__meta{position:absolute;left:var(--gutter);right:var(--gutter);bottom:34px;display:flex;justify-content:space-between;gap:16px;font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:rgb(var(--bg-rgb) / .6)}
.preloader__pct{font-variant-numeric:tabular-nums;color:#fff}
.preloader__bar{position:absolute;left:0;right:0;bottom:0;height:3px;background:rgb(var(--bg-rgb) / .08)}
.preloader__bar i{position:absolute;inset:0;transform-origin:left;transform:scaleX(var(--p,0));background:var(--grad-sheen);transition:transform .3s var(--ease)}

/* ---------- Top bar + Nav ---------- */
.topbar{position:absolute;z-index:99;top:0;left:0;right:0;height:42px;display:flex;align-items:center;justify-content:center;gap:14px;padding-inline:var(--gutter);font-size:13px;color:rgb(255 255 255 / .92);background:rgb(7 18 52 / .55);border-bottom:1px solid rgb(255 255 255 / .1);backdrop-filter:blur(10px)}
.topbar b{color:#fff;font-weight:700}
.topbar span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.topbar a{flex:none;padding:5px 14px;border-radius:999px;background:#fff;color:var(--primary);font-weight:700;font-size:12.5px;transition:transform .4s var(--ease)}
.topbar a:hover{transform:translateY(-1px)}

.nav{--nav-bar:62px;--nav-ctl:40px;position:fixed;top:56px;left:0;right:0;z-index:100;padding-inline:var(--gutter);pointer-events:none;transition:transform .6s var(--ease),opacity .6s var(--ease),top .6s var(--ease)}
.nav.is-scrolled{top:12px;--nav-bar:56px;--nav-ctl:38px}
.nav.is-hidden{transform:translateY(-140%)}
.nav__inner{pointer-events:auto;max-width:1240px;margin-inline:auto;height:var(--nav-bar);display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 10px 0 12px;border-radius:999px;background:rgb(var(--bg-rgb) / .72);border:1px solid rgba(255,255,255,.7);box-shadow:0 20px 50px -28px rgb(var(--shadow-rgb) / .6),0 1px 0 rgba(255,255,255,.8) inset;backdrop-filter:blur(18px) saturate(1.4);transition:background .5s,height .5s var(--ease)}
.nav.is-scrolled .nav__inner{background:rgb(var(--bg-rgb) / .86)}
.nav__brand{display:flex;align-items:center;gap:10px;flex:none}
.nav__brand img{height:calc(var(--nav-ctl) - 4px);width:auto;transition:transform .5s var(--ease)}
.nav__brand:hover img{transform:scale(1.05) rotate(-2deg)}
.nav__badge{font-size:11px;font-weight:600;padding:3px 9px;border-radius:999px;border:1px solid var(--line);color:var(--ink-3);white-space:nowrap}
.nav__links{position:relative;display:flex;align-items:center;gap:2px}
.nav__links a{position:relative;z-index:1;padding:9px 13px;border-radius:999px;font-size:13.5px;font-weight:500;color:var(--ink-2);white-space:nowrap;transition:color .3s}
.nav__links a:hover,.nav__links a.is-active{color:var(--primary)}
.nav__pill{position:absolute;z-index:0;top:0;left:0;height:100%;width:0;border-radius:999px;background:#fff;box-shadow:0 6px 16px -10px rgb(var(--shadow-rgb) / .5),0 0 0 1px rgb(var(--ink-rgb) / .06);opacity:0;transition:transform .6s var(--ease),width .6s var(--ease),opacity .3s}
.nav__actions{display:flex;align-items:center;gap:8px}
.nav__actions .btn{--bh:var(--nav-ctl)}
.burger{display:none;width:var(--nav-ctl);height:var(--nav-ctl);border-radius:50%;background:var(--primary);position:relative}
.burger span{position:absolute;left:30%;right:30%;height:1.6px;background:#fff;border-radius:2px;transition:transform .45s var(--ease),top .45s var(--ease)}
.burger span:first-child{top:calc(var(--nav-ctl) / 2 - 4px)}
.burger span:last-child{top:calc(var(--nav-ctl) / 2 + 3px)}
.nav.is-open .burger span:first-child{top:calc(var(--nav-ctl) / 2 - .5px);transform:rotate(45deg)}
.nav.is-open .burger span:last-child{top:calc(var(--nav-ctl) / 2 - .5px);transform:rotate(-45deg)}
.menu{position:fixed;inset:0;z-index:95;background:var(--grad-dark);color:#fff;padding:calc(var(--nav-bar,62px) + 88px) var(--gutter) 28px;display:flex;flex-direction:column;justify-content:space-between;clip-path:inset(0 0 100% 0);visibility:hidden;transition:clip-path .8s var(--ease-io),visibility 0s .8s;overflow:auto}
.menu.is-open{clip-path:inset(0 0 0 0);visibility:visible;transition:clip-path .8s var(--ease-io),visibility 0s}
.menu__links{display:grid;gap:4px}
.menu__links a{display:flex;align-items:baseline;gap:16px;padding:10px 0;font-size:clamp(1.5rem,6vw,2.2rem);font-weight:800;letter-spacing:-.03em;border-bottom:1px solid var(--line-light)}
.menu__links small{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--blue-300)}
.menu__foot{display:grid;gap:6px;margin-top:28px;font-size:14px;color:rgb(255 255 255 / .75)}

/* ==========================================================================
   HERO · cuộn tới đâu, câu chuyện chạy tới đó
   ========================================================================== */
.hero{position:relative;height:560vh;background:var(--deep)}
.hero__sticky{position:sticky;top:0;height:100vh;height:100svh;overflow:hidden}
.hero__stage{position:absolute;inset:0;background:var(--grad-dark)}
.hero__grid{position:absolute;inset:-10%;background-image:linear-gradient(rgb(143 180 255 / .07) 1px,transparent 1px),linear-gradient(90deg,rgb(143 180 255 / .07) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(70% 60% at 70% 45%,#000 0%,transparent 75%);mask-image:radial-gradient(70% 60% at 70% 45%,#000 0%,transparent 75%);will-change:transform}
.hero__orb{position:absolute;width:min(70vw,900px);aspect-ratio:1;right:-10vw;top:-14vh;border-radius:50%;background:radial-gradient(closest-side,rgb(29 92 255 / .45),rgb(29 92 255 / 0));filter:blur(10px);will-change:transform}
.hero__figure{position:absolute;right:max(2vw,14px);bottom:0;height:min(96vh,96svh,1100px);aspect-ratio:1142/1398;transform-origin:50% 24%;will-change:transform;pointer-events:none}
.hero__figure img{width:100%;height:100%;object-fit:contain;object-position:50% 100%;-webkit-mask-image:linear-gradient(180deg,#000 80%,transparent 100%);mask-image:linear-gradient(180deg,#000 80%,transparent 100%);opacity:0;transform:scale(1.04);transition:opacity 1.2s var(--ease),transform 1.6s var(--ease)}
.hero__figure img.is-loaded{opacity:1;transform:none}
.hero__plate{position:absolute;left:2%;bottom:11%;display:grid;gap:2px;padding:12px 18px;border-radius:16px;background:rgb(255 255 255 / .12);border:1px solid rgb(255 255 255 / .28);backdrop-filter:blur(14px);color:#fff;box-shadow:0 24px 50px -28px rgb(0 0 0 / .7)}
.hero__plate b{font-size:1.05rem;font-weight:800;letter-spacing:-.02em}
.hero__plate span{font-size:12.5px;color:rgb(255 255 255 / .8)}
.hero__scrim{position:absolute;inset:0;pointer-events:none}
.hero__scrim i{position:absolute;inset:0;display:block;will-change:opacity}
.hero__scrim .sl{opacity:var(--sl,0);background:linear-gradient(90deg,rgb(4 10 36 / .88) 0%,rgb(4 10 36 / .7) 18%,rgb(4 10 36 / .4) 38%,rgb(4 10 36 / .12) 56%,transparent 72%)}
.hero__scrim .sr{opacity:var(--sr,0);background:linear-gradient(270deg,rgb(4 10 36 / .88) 0%,rgb(4 10 36 / .7) 18%,rgb(4 10 36 / .4) 38%,rgb(4 10 36 / .12) 56%,transparent 72%)}
.hero__scrim .sb{opacity:var(--sb,0);background:linear-gradient(0deg,rgb(4 10 36 / .94) 0%,rgb(4 10 36 / .72) 26%,rgb(4 10 36 / .3) 50%,transparent 74%)}
.hero__shade{position:absolute;inset:0;pointer-events:none;background:radial-gradient(120% 90% at 50% 45%,transparent 55%,rgb(4 10 36 / .45) 100%)}
.hero__frame{position:absolute;inset:clamp(14px,2.2vw,28px);pointer-events:none}
.hero__frame i{position:absolute;width:26px;height:26px;border:0 solid rgb(255 255 255 / .7)}
.hero__frame i:nth-child(1){left:0;top:0;border-left-width:1.5px;border-top-width:1.5px}
.hero__frame i:nth-child(2){right:0;top:0;border-right-width:1.5px;border-top-width:1.5px}
.hero__frame i:nth-child(3){left:0;bottom:0;border-left-width:1.5px;border-bottom-width:1.5px}
.hero__frame i:nth-child(4){right:0;bottom:0;border-right-width:1.5px;border-bottom-width:1.5px}

.hero__layers{position:absolute;inset:0;pointer-events:none;--fg:#fff;--fg-2:rgb(255 255 255 / .84);--accent:#8fb4ff;--sh:0 1px 2px rgb(4 10 36 / .45),0 6px 30px rgb(4 10 36 / .5)}
.ch{--v:0;position:absolute;opacity:var(--v);visibility:hidden;pointer-events:none;width:min(580px,42vw)}
.ch.is-vis{visibility:visible}
.ch.is-on{pointer-events:auto}
.ch--left{left:var(--gutter);top:50%;transform:translateY(-46%)}
.ch--right{right:calc(var(--gutter) + 44px);top:50%;transform:translateY(-46%)}
.ch--intro{top:auto;bottom:clamp(86px,13vh,140px);transform:none;width:min(720px,54vw)}
.w{display:inline-block;--ci:clamp(0,calc((var(--v,1) - var(--d,0)) / .5),1);opacity:var(--ci);transform:translate3d(0,calc((1 - var(--ci)) * .5em),0);filter:blur(calc((1 - var(--ci)) * 5px));will-change:transform,opacity,filter}
.ch .st{opacity:clamp(0,calc(var(--v) * 1.7 - var(--i,0) * .16),1);transform:translate3d(0,calc((1 - clamp(0,calc(var(--v) * 1.7 - var(--i,0) * .16),1)) * 30px),0)}
.h2 .w,.ch .w{transition:none}
.ch__k{display:inline-flex;align-items:center;gap:10px;padding:8px 14px;border-radius:999px;background:rgb(255 255 255 / .1);border:1px solid rgb(255 255 255 / .24);backdrop-filter:blur(10px);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#fff;margin-bottom:22px}
.ch__k i{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgb(143 180 255 / .25)}
.ch__title{display:block;font-size:clamp(2.2rem,4.1vw,4rem);font-weight:800;letter-spacing:-.04em;line-height:1.08;color:var(--fg);text-shadow:var(--sh);text-wrap:balance}
.ch__title--xl{font-size:clamp(2.5rem,4.8vw,4.8rem)}
.ch__title--quote{font-size:clamp(1.9rem,3.5vw,3.3rem);line-height:1.15}
.ch .grad,.ch .grad .w{background:none;-webkit-text-fill-color:var(--accent);color:var(--accent)}
.ch__text{margin-top:18px;max-width:46ch;font-size:clamp(1rem,1.1vw,1.15rem);line-height:1.65;color:var(--fg-2);text-shadow:var(--sh)}
.ch__by{margin-top:22px;display:grid;gap:2px;font-size:14px;color:var(--fg-2);text-shadow:var(--sh)}
.ch__by b{font-size:1.05rem;color:#fff}
.ch .btn-row{margin-top:26px}
.ch__stats{display:grid;gap:22px;margin-top:26px}
.ch-stat{display:grid;grid-template-columns:minmax(0,auto) minmax(0,1fr);gap:20px;align-items:center}
.ch-stat b{font-size:clamp(2.1rem,3vw,3.1rem);font-weight:800;letter-spacing:-.045em;line-height:1.05;min-width:2.5em;font-variant-numeric:tabular-nums;white-space:nowrap;color:#fff;text-shadow:var(--sh)}
.ch-stat b small{font-size:.5em;margin-left:3px;color:var(--accent)}
.ch-stat span{font-size:clamp(1rem,1.08vw,1.12rem);color:var(--fg-2);line-height:1.5;text-shadow:var(--sh)}
.ch__list{display:grid;gap:16px;margin-top:24px}
.ch-pill{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;align-items:center}
.ch-pill i{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:rgb(255 255 255 / .12);border:1px solid rgb(255 255 255 / .26);backdrop-filter:blur(8px);color:var(--accent)}
.ch-pill i svg{width:20px;height:20px}
.ch-pill b{display:block;font-size:1.08rem;color:#fff;text-shadow:var(--sh)}
.ch-pill span{font-size:14.5px;color:var(--fg-2);text-shadow:var(--sh);line-height:1.5}

.hud{position:absolute;inset:0;pointer-events:none;color:#fff;font-size:11px;font-weight:600;letter-spacing:.16em;text-transform:uppercase}
.hud__scroll{position:absolute;left:50%;bottom:clamp(24px,4vh,38px);transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;transition:opacity .6s}
.hud__mouse{width:22px;height:34px;border-radius:12px;border:1.5px solid rgb(255 255 255 / .8);position:relative}
.hud__mouse::after{content:"";position:absolute;left:50%;top:7px;width:3px;height:7px;margin-left:-1.5px;border-radius:2px;background:#fff;animation:wheel 1.8s var(--ease) infinite}
@keyframes wheel{0%{transform:translateY(0);opacity:1}70%{transform:translateY(10px);opacity:0}100%{opacity:0}}
.hud__rail{position:absolute;z-index:2;right:calc(var(--gutter) - 6px);top:50%;transform:translateY(-50%);display:grid;gap:12px;justify-items:end;pointer-events:auto}
.hud__tick{display:flex;align-items:center;gap:10px;color:rgb(255 255 255 / .7);font-size:10.5px;letter-spacing:.14em}
.hud__tick span{opacity:0;transform:translateX(6px);transition:opacity .4s,transform .4s var(--ease)}
.hud__tick i{width:18px;height:1.5px;border-radius:2px;background:rgb(255 255 255 / .55);transition:width .5s var(--ease),background .3s}
.hud__tick:hover span,.hud__tick.is-active span{opacity:1;transform:none}
.hud__tick:hover i{width:28px}
.hud__tick.is-active i{width:38px;background:#fff}
.hud__progress{position:absolute;left:0;bottom:0;height:3px;width:100%;transform-origin:left;transform:scaleX(0);background:var(--grad-sheen)}

/* ==========================================================================
   Giới thiệu
   ========================================================================== */
.about__grid{display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:clamp(30px,5vw,80px);align-items:start}
.portrait{position:sticky;top:104px}
.tilt{transform-style:preserve-3d;transition:transform .5s var(--ease);will-change:transform}
.portrait__card{position:relative;border-radius:var(--r-xl);overflow:hidden;aspect-ratio:4/5;background:var(--grad-dark);box-shadow:var(--shadow-float)}
.portrait__card img{width:100%;height:100%;object-fit:cover;object-position:50% 12%;transform:scale(1.04)}
.portrait__card::after{content:"";position:absolute;inset:0;background:radial-gradient(60% 50% at var(--gx,50%) var(--gy,30%),rgba(255,255,255,.2),transparent 60%);mix-blend-mode:soft-light;pointer-events:none}
.glass{background:rgb(var(--bg-rgb) / .62);border:1px solid rgba(255,255,255,.72);box-shadow:0 30px 70px -40px rgb(var(--shadow-rgb) / .6),0 1px 0 rgba(255,255,255,.8) inset;backdrop-filter:blur(20px) saturate(1.5)}
.portrait__badge{position:absolute;transform:translateZ(60px);padding:12px 16px;border-radius:18px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:10px;white-space:nowrap;color:var(--ink)}
.portrait__badge b{font-size:1.3rem;font-weight:800;letter-spacing:-.03em;color:var(--primary)}
.portrait__badge--a{left:-18px;bottom:64px}
.portrait__badge--b{right:-14px;top:42px}
.portrait__cap{margin-top:18px;display:flex;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-3)}
.portrait__cap b{color:var(--ink)}
.about__content{display:grid;gap:clamp(34px,4vw,52px)}
.about__k{display:flex;align-items:center;gap:12px;font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin-bottom:14px}
.about__k span{color:var(--primary)}
.about__title{font-size:clamp(1.35rem,2.3vw,1.95rem);font-weight:800;letter-spacing:-.03em;line-height:1.25;color:var(--ink);margin-bottom:10px}
.strengths{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.strength{padding:22px 18px;border-radius:var(--r-md);background:rgba(255,255,255,.65);border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow-card);display:grid;gap:10px;align-content:start;transition:transform .6s var(--ease)}
.strength:hover{transform:translateY(-5px)}
.strength>svg{width:28px;height:28px;color:var(--primary);transition:transform .6s var(--ease)}
.strength:hover>svg{transform:rotate(-10deg) scale(1.1)}
.strength h4{font-size:1.02rem;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.strength p{font-size:13.5px;line-height:1.6;color:var(--ink-3)}
.qcard{position:relative;padding:30px 28px 28px;border-radius:var(--r-lg);color:#fff;background:var(--grad-dark);box-shadow:var(--shadow-float);overflow:hidden}
.qcard>svg{width:34px;height:34px;color:var(--blue-300);margin-bottom:14px}
.qcard p{font-size:clamp(1.15rem,1.9vw,1.5rem);font-weight:700;letter-spacing:-.025em;line-height:1.38}
.qcard footer{margin-top:18px;font-size:13.5px;color:rgb(255 255 255 / .75)}
.qcard footer b{color:#fff}
.chip{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap;background:rgba(255,255,255,.7);border:1px solid var(--line);color:var(--ink-2)}
.roles{display:flex;flex-wrap:wrap;gap:8px}

.marquee{position:relative;z-index:3;overflow:hidden;padding-block:24px;border-block:1px solid var(--line);background:var(--bg)}
.marquee__track{display:flex;width:max-content;animation:marq 38s linear infinite}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee__group{display:flex;align-items:center;gap:44px;padding-right:44px}
.marquee__item{font-size:clamp(1.5rem,3.2vw,2.6rem);font-weight:800;letter-spacing:-.04em;white-space:nowrap;color:var(--ink);transition:color .4s}
.marquee__item.o{color:transparent;-webkit-text-stroke:1.2px var(--blue-300)}
.marquee__item:hover{color:var(--primary)}
.marquee__star{width:22px;height:22px;color:var(--primary);flex:none}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---------- Giá trị cốt lõi ---------- */
.values{display:grid;grid-template-columns:minmax(0,1fr);gap:clamp(28px,4vw,64px)}
.vrow{border-bottom:1px solid var(--line)}
.vrow:first-child{border-top:1px solid var(--line)}
.vrow__head{width:100%;display:grid;grid-template-columns:34px 44px minmax(0,1fr) 34px;align-items:center;gap:14px;padding:20px 4px;text-align:left}
.vrow__num{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--ink-3);font-variant-numeric:tabular-nums;transition:color .35s}
.vrow__icon{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;color:var(--ink-2);background:rgba(255,255,255,.75);border:1px solid var(--line);transition:background .4s,color .4s,border-color .4s}
.vrow__icon svg{width:19px;height:19px}
.vrow__title{font-size:clamp(1.05rem,1.7vw,1.35rem);font-weight:700;letter-spacing:-.02em;line-height:1.3;color:var(--ink-2);transition:color .35s}
.vrow__toggle{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:rgba(255,255,255,.7);transition:transform .5s var(--ease),background .4s,color .4s}
.vrow__toggle svg{width:15px;height:15px}
.vrow:hover .vrow__title,.vrow.is-open .vrow__title{color:var(--ink)}
.vrow.is-open .vrow__num{color:var(--primary)}
.vrow.is-open .vrow__icon{background:var(--primary);color:#fff;border-color:transparent}
.vrow.is-open .vrow__toggle{transform:rotate(45deg);background:var(--ink);color:#fff;border-color:transparent}
.vrow__body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .55s var(--ease)}
.vrow.is-open .vrow__body{grid-template-rows:1fr}
.vrow__inner{overflow:hidden;min-height:0}
.vrow__content{display:grid;gap:12px;max-width:720px;padding:0 4px 24px 92px;opacity:0;transform:translateY(6px);transition:opacity .4s var(--ease),transform .5s var(--ease)}
.vrow.is-open .vrow__content{opacity:1;transform:none;transition-delay:.1s}
.vrow__proof{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:start;font-size:13.5px;line-height:1.6;color:var(--ink)}
.vrow__proof span,.vpanel__proof span{display:inline-block;font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);padding:3px 9px;border-radius:999px;background:rgb(var(--primary-rgb) / .09);border:1px solid rgb(var(--primary-rgb) / .2)}
.vpanel{display:none}
@media (min-width:1025px) and (hover:hover){
  .values{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:start}
  .vrow__body,.vrow__toggle{display:none}
  .vrow__head{cursor:pointer}
  .vpanel{display:block;position:sticky;top:120px;min-height:360px;padding:38px 36px;border-radius:var(--r-xl);color:#fff;background:var(--grad-dark);box-shadow:var(--shadow-float);overflow:hidden}
  .vpanel__in{display:grid;gap:18px;transition:opacity .4s var(--ease),transform .5s var(--ease)}
  .vpanel.is-swap .vpanel__in{opacity:0;transform:translateY(10px)}
  .vpanel__num{font-size:clamp(4.4rem,8vw,7rem);font-weight:800;letter-spacing:-.06em;line-height:.9;color:transparent;-webkit-text-stroke:1.3px rgb(143 180 255 / .75)}
  .vpanel h3{font-size:clamp(1.5rem,2.4vw,2.1rem);font-weight:800;letter-spacing:-.03em;line-height:1.2}
  .vpanel .desc{color:rgb(255 255 255 / .78);font-size:15.5px}
  .vpanel__proof{display:grid;gap:8px;font-size:14px;line-height:1.6;color:rgb(255 255 255 / .92);padding-top:16px;border-top:1px solid var(--line-light)}
  .vpanel__proof span{justify-self:start;color:var(--blue-300);background:rgb(143 180 255 / .12);border-color:rgb(143 180 255 / .3)}
}

/* ---------- Lợi ích khóa học AI ---------- */
.skills{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.skill{position:relative;display:grid;gap:12px;align-content:start;padding:28px 26px;border-radius:var(--r-lg);background:rgba(255,255,255,.7);border:1px solid rgba(255,255,255,.95);box-shadow:var(--shadow-card);transition:transform .6s var(--ease),box-shadow .6s}
.skill:hover{transform:translateY(-6px)}
.skill__top{display:flex;justify-content:space-between;align-items:center}
.skill__ico{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;background:var(--primary);color:#fff;box-shadow:0 14px 28px -14px rgb(var(--primary-rgb) / .9)}
.skill__ico svg{width:24px;height:24px}
.skill__idx{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--ink-3)}
.skill h3{font-size:1.28rem;font-weight:800;letter-spacing:-.03em;color:var(--ink);line-height:1.25}
.skill--feat{grid-column:1;grid-row:1/span 2;color:#fff;background:var(--grad-dark);border-color:transparent;min-height:420px;align-content:end;overflow:hidden}
.skill--feat::before{content:"";position:absolute;width:420px;aspect-ratio:1;right:-140px;top:-140px;border-radius:50%;background:radial-gradient(closest-side,rgb(29 92 255 / .55),transparent);z-index:-1}
.skill--feat h3{font-size:clamp(1.7rem,2.6vw,2.5rem);color:#fff;line-height:1.15}
.skill--feat .desc{color:rgb(255 255 255 / .72)}

/* ==========================================================================
   Lộ trình (ghim khi cuộn)
   ========================================================================== */
.process{position:relative}
.process__pin{height:360vh;position:relative}
.process__sticky{position:sticky;top:0;height:100vh;height:100svh;display:flex;flex-direction:column;justify-content:center;padding-top:64px;overflow:hidden}
.process .sec-head{margin-bottom:clamp(24px,4vh,44px)}
.process__count{font-size:clamp(1.6rem,3vw,2.6rem);font-weight:800;letter-spacing:-.05em;line-height:1;font-variant-numeric:tabular-nums;white-space:nowrap;color:#fff}
.process__count small{font-size:.5em;color:var(--blue-300);letter-spacing:0}
.pflow__rail{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));margin-bottom:clamp(24px,5vh,50px)}
.pflow__line{position:absolute;left:10%;right:10%;top:7px;height:2px;background:rgb(255 255 255 / .12);border-radius:2px}
.pflow__line i{position:absolute;inset:0;transform-origin:left;transform:scaleX(var(--pp,0));background:linear-gradient(90deg,#8fb4ff,#1d5cff 60%,#2563eb);border-radius:2px}
.pflow__line b{position:absolute;top:50%;left:calc(var(--pp,0) * 100%);width:12px;height:12px;margin:-6px 0 0 -6px;border-radius:50%;background:#fff;box-shadow:0 0 0 5px rgb(29 92 255 / .35),0 0 20px rgb(143 180 255 / .8)}
.pnode{position:relative;display:grid;justify-items:center;gap:8px;color:rgb(255 255 255 / .45);transition:color .45s;min-width:0}
.pnode__dot{width:16px;height:16px;border-radius:50%;border:2px solid rgb(255 255 255 / .3);background:var(--deep);transition:background .4s,border-color .4s,transform .5s var(--ease)}
.pnode__n{font-size:11px;font-weight:700;letter-spacing:.14em}
.pnode__t{font-size:clamp(.78rem,1.1vw,.98rem);font-weight:600;text-align:center;line-height:1.3;padding-inline:4px}
.pnode.is-done .pnode__dot{background:var(--blue-300);border-color:var(--blue-300)}
.pnode.is-active{color:#fff}
.pnode.is-active .pnode__dot{background:var(--primary);border-color:#fff;transform:scale(1.25)}
.pflow__stage{position:relative;min-height:clamp(220px,34vh,320px)}
.pstep{position:absolute;inset:0;display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(20px,4vw,64px);align-items:center;opacity:0;transform:translate3d(0,26px,0);filter:blur(6px);transition:opacity .6s var(--ease),transform .7s var(--ease),filter .6s;pointer-events:none}
.pstep.is-active{opacity:1;transform:none;filter:none;pointer-events:auto}
.pstep__n{font-size:clamp(5rem,13vw,12rem);font-weight:800;letter-spacing:-.07em;line-height:.85;color:transparent;-webkit-text-stroke:1.3px rgb(143 180 255 / .7)}
.pstep__title{font-size:clamp(1.6rem,3vw,2.6rem);font-weight:800;letter-spacing:-.035em;line-height:1.15;color:#fff;margin-bottom:12px}
.pstep .desc{max-width:560px;font-size:16px}

/* ==========================================================================
   Khóa học (bức tường nghiêng 3D chạy theo cuộn)
   ========================================================================== */
.showcase-sec{overflow:clip;padding-bottom:clamp(36px,5vw,64px)}
.showcase-sec .sec-head{margin-bottom:0}
.pw{position:relative;overflow:hidden;perspective:1000px;padding-block:24px 70px;--gap:20px;--cw:calc((100vw - 2 * var(--gutter) - 3 * var(--gap)) / 3.15)}
.pw:first-child{padding-top:clamp(56px,7vw,100px)}
@media (min-width:768px){.pw{padding-block:90px 160px}}
.pw__head{position:relative;z-index:3;max-width:860px;margin-inline:auto;padding:40px var(--gutter) 0;display:grid;justify-items:center;gap:12px;text-align:center;margin-bottom:clamp(30px,4vw,56px)}
.pw__idx{display:inline-grid;place-items:center;min-width:46px;height:30px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--primary);background:rgb(var(--primary-rgb) / .09);border:1px solid rgb(var(--primary-rgb) / .22)}
.pw__title{font-size:clamp(1.9rem,3.8vw,3.1rem);font-weight:800;letter-spacing:-.04em;line-height:1.12;color:var(--ink)}
.pw__desc{max-width:640px;font-size:15px;color:var(--ink-3)}
.pw__wall{position:relative;z-index:1;opacity:.28;backface-visibility:hidden;transform-origin:50% 40%}
.pw__row{display:flex;gap:var(--gap);width:max-content;padding-left:var(--gutter);margin-bottom:var(--gap);will-change:transform}
.pw--sq{--cw:calc((100vw - 2 * var(--gutter) - 3 * var(--gap)) / 4.15)}
.pc{position:relative;flex:none;width:var(--cw);display:flex;flex-direction:column;border-radius:var(--r-lg);background:#fff;border:1px solid rgb(var(--ink-rgb) / .08);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .6s var(--ease),box-shadow .6s var(--ease)}
.pc:hover,.pc:focus-within{transform:translate3d(0,-14px,0);box-shadow:0 44px 70px -40px rgb(var(--primary-rgb) / .55)}
.pc__media{position:relative;display:block;aspect-ratio:2/1;overflow:hidden;background:var(--blue-100)}
.pw--sq .pc__media{aspect-ratio:1/1}
.pc__media img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--ease)}
.pc:hover .pc__media img{transform:scale(1.045)}
.pc__tag{position:absolute;left:12px;top:12px;padding:5px 11px;border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:rgb(7 18 52 / .72);backdrop-filter:blur(8px)}
.pc__body{display:grid;gap:8px;padding:18px 20px 20px;flex:1;align-content:start}
.pc__body h3{font-size:1.12rem;font-weight:800;letter-spacing:-.02em;color:var(--ink);line-height:1.25}
.pc__body .desc{font-size:13.5px;line-height:1.6;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;line-clamp:2;overflow:hidden}
.pc__foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 10px;margin-top:6px;padding-top:12px;border-top:1px solid var(--line-2,rgb(11 27 77 / .08))}
.price{font-size:1.05rem;font-weight:800;letter-spacing:-.02em;color:var(--primary);white-space:nowrap}
.price small{font-size:.72rem;font-weight:600;color:var(--ink-3);margin-left:2px}
.pc__go,.pc__reg{white-space:nowrap}
.pc__go{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--ink);transition:color .3s}
.pc__go:hover{color:var(--primary)}
.pc__go svg{width:15px;height:15px;transition:transform .4s var(--ease)}
.pc__go:hover svg{transform:translateX(3px)}
.pc__reg{padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:700;color:#fff;background:var(--primary);transition:background .3s,transform .4s var(--ease)}
.pc__reg:hover{background:var(--royal);transform:translateY(-1px)}
.pc--cta{justify-content:center;align-items:flex-start;gap:14px;padding:30px 28px;color:#fff;background:var(--grad-dark);border-color:transparent}
.pc--cta h3{font-size:clamp(1.4rem,2vw,1.9rem);font-weight:800;letter-spacing:-.03em;line-height:1.2}
.pc--cta .desc{color:rgb(255 255 255 / .75)}

.pw-nav{position:sticky;z-index:20;bottom:clamp(14px,2.2vw,24px);display:flex;align-items:center;gap:4px;width:max-content;max-width:calc(100% - 28px);margin:0 auto;padding:5px;border-radius:999px;background:rgb(var(--bg-rgb) / .9);border:1px solid rgba(255,255,255,.8);box-shadow:0 22px 50px -24px rgb(var(--shadow-rgb) / .7);opacity:0;translate:0 20px;pointer-events:none;transition:opacity .5s var(--ease),translate .6s var(--ease);overflow-x:auto;scrollbar-width:none}
.pw-nav::-webkit-scrollbar{display:none}
.pw-nav.is-on{opacity:1;translate:0 0;pointer-events:auto}
.pw-nav__pill{position:absolute;z-index:0;left:0;top:0;border-radius:999px;background:var(--primary);box-shadow:0 10px 22px -12px rgb(var(--primary-rgb) / .9);opacity:0;transition:transform .6s var(--ease),width .6s var(--ease),height .4s,opacity .3s}
.pw-nav.has-active .pw-nav__pill{opacity:1}
.pw-nav__a{position:relative;z-index:1;flex:none;display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:600;color:var(--ink-2);transition:color .3s}
.pw-nav__a b{font-size:11px;letter-spacing:.06em;color:var(--ink-3);transition:color .3s}
.pw-nav__a.is-active{color:#fff}
.pw-nav__a.is-active b{color:rgb(255 255 255 / .75)}

/* ---------- Inhouse ---------- */
.inhouse__grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:clamp(30px,5vw,80px);align-items:center}
.inhouse__list{display:grid;gap:12px;margin:26px 0 30px}
.inhouse__list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:rgb(255 255 255 / .88);line-height:1.55}
.inhouse__list svg{width:20px;height:20px;flex:none;margin-top:2px;color:var(--blue-300)}
.inhouse__roles{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.inhouse__roles .chip{background:rgb(255 255 255 / .08);border-color:rgb(255 255 255 / .2);color:#fff}
.inhouse__visual{position:relative;border-radius:var(--r-xl);overflow:hidden;aspect-ratio:1/1;box-shadow:0 50px 90px -40px rgb(0 0 0 / .7);border:1px solid rgb(255 255 255 / .16)}
.inhouse__visual img{width:100%;height:100%;object-fit:cover;transform:scale(1.03)}

/* ---------- Đội ngũ ---------- */
.team{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.tcard{position:relative;border-radius:var(--r-xl);overflow:hidden;background:#fff;border:1px solid rgb(var(--ink-rgb) / .08);box-shadow:var(--shadow-card);transition:transform .7s var(--ease),box-shadow .7s}
.tcard:hover{transform:translateY(-8px);box-shadow:0 50px 80px -44px rgb(var(--primary-rgb) / .6)}
.tcard__photo{position:relative;aspect-ratio:1/1;background:radial-gradient(70% 60% at 50% 30%,rgb(29 92 255 / .5),transparent 70%),linear-gradient(160deg,#10276b,#071234);overflow:hidden}
.tcard__photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 20%;transition:transform 1.2s var(--ease)}
.tcard:hover .tcard__photo img{transform:scale(1.05)}
.tcard__body{padding:22px 24px 26px;display:grid;gap:6px}
.tcard__role{font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--primary)}
.tcard h3{font-size:1.35rem;font-weight:800;letter-spacing:-.03em;color:var(--ink)}
.tcard .desc{font-size:14px}

/* ---------- Đối tác ---------- */
.group-title{display:flex;align-items:center;gap:14px;margin:0 auto clamp(18px,2.4vw,28px);max-width:var(--maxw);padding-inline:var(--gutter);font-size:clamp(1.05rem,1.6vw,1.3rem);font-weight:700;letter-spacing:-.02em;color:#fff}
.group-title::after{content:"";flex:1;height:1px;background:var(--line-light)}
.logos{display:grid;gap:16px;margin-bottom:clamp(40px,6vw,70px);overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.logo-row{display:flex;width:max-content;animation:logoL 46s linear infinite}
.logo-row--r{animation-name:logoR;animation-duration:52s}
.logos:hover .logo-row{animation-play-state:paused}
.logo-group{display:flex;gap:16px;padding-right:16px}
.tile{flex:none;width:clamp(160px,15vw,210px);aspect-ratio:1200/740;border-radius:18px;background:#fff;overflow:hidden;box-shadow:0 18px 40px -26px rgb(0 0 0 / .7);transition:transform .6s var(--ease)}
.tile img{width:100%;height:100%;object-fit:contain}
.tile:hover{transform:translateY(-6px) scale(1.03)}
.tile--uni{aspect-ratio:1064/640;width:clamp(180px,17vw,240px)}
@keyframes logoL{to{transform:translateX(-50%)}}
@keyframes logoR{from{transform:translateX(-50%)}to{transform:translateX(0)}}
.logos-cta{display:inline-flex;align-items:center;gap:10px;margin-top:6px;font-size:15px;color:rgb(255 255 255 / .75);transition:color .3s}
.logos-cta b{color:#fff;border-bottom:1px solid currentColor}
.logos-cta:hover{color:#fff}
.logos-cta svg{width:18px;height:18px;transition:transform .4s var(--ease)}
.logos-cta:hover svg{transform:translateX(4px)}

/* ---------- Cảm nhận học viên ---------- */
.fb__nav{display:flex;gap:10px}
.fb__viewport{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:8px var(--gutter) 30px;margin-inline:calc(var(--gutter) * -1);scrollbar-width:none;-webkit-overflow-scrolling:touch}
.fb__viewport::-webkit-scrollbar{display:none}
.fcard{flex:none;scroll-snap-align:start;width:min(430px,86vw);display:flex;flex-direction:column;gap:20px;padding:30px 28px 28px;border-radius:var(--r-lg);background:rgba(255,255,255,.78);border:1px solid rgba(255,255,255,.95);box-shadow:var(--shadow-card);transition:transform .6s var(--ease)}
.fcard:hover{transform:translateY(-6px)}
.fcard__stars{display:flex;gap:3px;color:var(--star)}
.fcard__stars svg{width:18px;height:18px;filter:drop-shadow(0 1px 0 rgb(0 0 0 / .12))}
.fcard blockquote{font-size:16px;line-height:1.7;color:var(--ink-2);flex:1}
.fcard footer{display:flex;align-items:center;gap:14px}
.fcard footer img{width:54px;height:54px;border-radius:50%;object-fit:cover;object-position:50% 25%;border:2px solid #fff;box-shadow:0 8px 20px -10px rgb(var(--shadow-rgb) / .6)}
.fcard footer b{display:block;font-size:1rem;color:var(--ink);letter-spacing:-.01em}
.fcard footer span{font-size:13px;color:var(--ink-3)}
.fb__dots{display:flex;justify-content:center;gap:8px;margin-top:6px}
.fb__dots i{width:8px;height:8px;border-radius:99px;background:var(--blue-200);transition:width .5s var(--ease),background .3s}
.fb__dots i.is-on{width:28px;background:var(--primary)}

/* ---------- Kinh nghiệm - Kiến thức ---------- */
.kbh__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:20px}
.kbh-post{position:relative;display:grid;align-content:end;gap:16px;min-height:430px;padding:34px 32px;border-radius:var(--r-xl);overflow:hidden;background:radial-gradient(60% 60% at 90% 0%,rgb(29 92 255 / .55),transparent 70%),linear-gradient(160deg,#10276b,#071234);border:1px solid var(--line-light)}
.kbh-post__badge{position:absolute;left:28px;top:28px;display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:#fff;background:rgb(255 255 255 / .12);border:1px solid rgb(255 255 255 / .26)}
.kbh-post h3{font-size:clamp(1.7rem,3vw,2.7rem);font-weight:800;letter-spacing:-.04em;line-height:1.12;color:#fff}
.kbh-post h3 em{font-style:normal;color:var(--blue-300)}
.kbh-pillars{display:grid;gap:12px}
.kbh-pillar{display:grid;grid-template-columns:48px minmax(0,1fr) 22px;gap:16px;align-items:center;padding:18px 20px;border-radius:var(--r-md);background:rgb(255 255 255 / .05);border:1px solid var(--line-light);transition:transform .5s var(--ease),background .4s}
.kbh-pillar:hover{transform:translateX(6px);background:rgb(255 255 255 / .09)}
.kbh-pillar__ico{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;background:rgb(143 180 255 / .14);color:var(--blue-300)}
.kbh-pillar__ico svg{width:22px;height:22px}
.kbh-pillar b{display:block;font-size:1.05rem;font-weight:700;color:#fff;letter-spacing:-.015em}
.kbh-pillar small{display:block;font-size:13px;color:rgb(255 255 255 / .6);line-height:1.5}
.kbh-pillar__go{width:20px;height:20px;color:var(--blue-300)}

/* ---------- Đăng ký + liên hệ ---------- */
.cta__panel{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:clamp(24px,4vw,56px);align-items:start;padding:clamp(28px,4.4vw,56px);border-radius:var(--r-xl);background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.95);box-shadow:var(--shadow-float);backdrop-filter:blur(20px)}
.cta__title{font-size:clamp(1.9rem,3.8vw,3.2rem);font-weight:800;letter-spacing:-.04em;line-height:1.12;color:var(--ink);margin-bottom:14px;text-wrap:balance}
.perks{display:grid;gap:10px;margin:20px 0 26px}
.perks li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.perks svg{width:20px;height:20px;flex:none;color:var(--primary);margin-top:2px}
.form{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:6px}
.field--full{grid-column:1/-1}
.field label{font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--ink-2)}
.field input,.field select{width:100%;height:50px;padding:0 16px;border-radius:14px;border:1px solid rgb(var(--ink-rgb) / .16);background:#fff;font:inherit;font-size:15px;color:var(--ink);transition:border-color .3s,box-shadow .3s}
.field select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%230b4ee6' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'><path d='m6 9 6 6 6-6'/></svg>");background-repeat:no-repeat;background-position:right 16px center;padding-right:42px}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgb(var(--primary-rgb) / .14)}
.form__note{grid-column:1/-1;font-size:12.5px;color:var(--ink-3);line-height:1.6}
.form .btn{grid-column:1/-1}
.contact{display:grid;gap:14px;padding:26px 24px;border-radius:var(--r-lg);color:#fff;background:var(--grad-dark);box-shadow:var(--shadow-float);position:sticky;top:110px}
.contact__logo{display:inline-block;justify-self:start;background:#fff;border-radius:14px;padding:8px 16px}
.contact__logo img{height:36px;width:auto}
.contact h3{font-size:1.15rem;font-weight:800;letter-spacing:-.02em}
.contact__link{display:grid;grid-template-columns:22px minmax(0,1fr) auto;gap:12px;align-items:center;padding:13px 14px;border-radius:14px;background:rgb(255 255 255 / .07);border:1px solid var(--line-light);font-size:14.5px;transition:background .3s,transform .4s var(--ease);text-align:left}
.contact__link:hover{background:rgb(255 255 255 / .13);transform:translateX(4px)}
.contact__link svg{width:20px;height:20px;color:var(--blue-300)}
.contact__link em{font-style:normal;min-width:0;overflow-wrap:anywhere}
.contact__link small{font-size:11.5px;color:rgb(255 255 255 / .55)}
.contact__link--static{cursor:default}
.contact__link--static:hover{transform:none;background:rgb(255 255 255 / .07)}

/* ---------- Footer ---------- */
.footer{background:var(--deep);color:rgb(255 255 255 / .72);padding:clamp(60px,8vw,100px) 0 34px}
.footer__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:clamp(24px,4vw,56px)}
.footer__logo{display:inline-block;background:#fff;border-radius:14px;padding:8px 16px;margin-bottom:16px}
.footer__logo img{height:38px;width:auto}
.footer h3{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:#fff;margin-bottom:16px}
.footer__list{display:grid;gap:10px;font-size:14px}
.footer__list a{transition:color .3s}
.footer__list a:hover{color:#fff}
.footer .desc{font-size:14px;color:rgb(255 255 255 / .62)}
.footer__policy{margin-top:40px;padding:20px 22px;border-radius:var(--r-md);background:rgb(255 255 255 / .05);border:1px solid var(--line-light);font-size:13px;line-height:1.7;color:rgb(255 255 255 / .7)}
.footer__bar{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:30px;padding-top:22px;border-top:1px solid var(--line-light);font-size:12.5px;color:rgb(255 255 255 / .5)}
.totop{position:fixed;right:clamp(14px,2vw,28px);bottom:clamp(14px,2vw,28px);z-index:80;width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:#fff;box-shadow:0 18px 40px -16px rgb(var(--primary-rgb) / .9);opacity:0;transform:translateY(16px) scale(.9);pointer-events:none;transition:opacity .5s var(--ease),transform .6s var(--ease)}
.totop.is-on{opacity:1;transform:none;pointer-events:auto}
.totop svg.ring{position:absolute;inset:0;width:100%;height:100%;transform:rotate(-90deg)}
.totop svg.ring circle{fill:none;stroke-width:2.5}
.totop svg.ring .bg{stroke:rgb(255 255 255 / .25)}
.totop svg.ring .fg{stroke:#fff;stroke-linecap:round;stroke-dasharray:151;stroke-dashoffset:calc(151 - 151 * var(--sp,0))}
.totop .ico{position:relative;width:20px;height:20px}
body.menu-open .totop{display:none}

/* ---------- Responsive ---------- */
@media (max-width:1180px){.nav__links a[data-hide-md]{display:none}}
@media (max-width:1100px){
  .nav__links{display:none}.burger{display:block}.nav__badge{display:none}
  .about__grid{grid-template-columns:1fr}.portrait{position:relative;top:0;max-width:520px}
  .skills{grid-template-columns:1fr 1fr}.skill--feat{grid-column:1/-1;grid-row:auto;min-height:320px}
  .inhouse__grid,.kbh__grid,.cta__panel{grid-template-columns:1fr}
  .contact{position:relative;top:0}
  .team{grid-template-columns:1fr 1fr}
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1024px){.ch{width:min(540px,48vw)}}
@media (max-width:760px){
  .topbar{font-size:12px;gap:10px}.topbar span{max-width:60vw}
  .sec-head__foot{grid-template-columns:1fr}.sec-head__rule{display:none}
  .sec-head--aside{grid-template-columns:1fr}.sec-head--aside>.h2{grid-area:auto}.sec-head--aside>.sec-head__top{grid-area:auto;order:-1;justify-content:flex-start}
  /* hero: chữ ở dưới, ảnh founder ở trên */
  .hero__figure{right:auto;left:50%;margin-left:-47vw;height:auto;width:94vw;bottom:auto;top:56px}
  .hero__plate{display:none}
  .pw-nav{margin-left:14px;max-width:calc(100% - 96px)}
  .ch,.ch--left,.ch--right,.ch--intro{left:var(--gutter);right:var(--gutter);width:auto;top:auto;bottom:clamp(74px,12vh,110px);transform:none}
  .ch__title{font-size:clamp(1.9rem,8.2vw,2.6rem)}.ch__title--quote{font-size:clamp(1.55rem,6.4vw,2.1rem)}.ch__title--xl{font-size:clamp(2rem,8.6vw,2.7rem)}
  .ch__text{font-size:.98rem;margin-top:12px}.ch__stats{gap:14px;margin-top:16px}.ch-stat{gap:14px}.ch-stat b{font-size:1.9rem;min-width:2.7em}
  .ch__list{gap:12px;margin-top:16px}.ch .btn-row{margin-top:18px}.ch .btn{--bh:46px;padding:0 20px}
  .ch__k{margin-bottom:14px}
  .hud__rail{display:none}
  .hero__frame i{width:18px;height:18px}
  .strengths{grid-template-columns:1fr}
  .skills{grid-template-columns:1fr}
  .vrow__head{grid-template-columns:28px 40px minmax(0,1fr) 34px;gap:10px}
  .vrow__content{padding-left:4px}
  .pflow__rail{margin-bottom:22px}.pnode__t{font-size:.7rem}.pnode__n{display:none}
  .pstep{grid-template-columns:1fr;gap:6px;align-content:start}.pstep__n{font-size:4.4rem}
  .pw{--cw:82vw;--gap:14px}.pw--sq{--cw:68vw}
  .team{grid-template-columns:1fr}
  .form{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr}
  .portrait__badge--a{left:-8px}.portrait__badge--b{right:-6px}
}
@media (max-width:380px){.btn{padding:0 18px;font-size:14px}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .grain,.marquee__track,.logo-row{animation:none}
  .rv,.h2 .w{opacity:1;transform:none;filter:none;transition:none}
}

/* ---------- Sub menu (menu WordPress có mục con) ---------- */
.nav__item{position:relative;display:flex;align-items:center}
.nav__links .nav__item>a{display:inline-flex;align-items:center;gap:5px}
.nav__chev{width:13px;height:13px;flex:none;opacity:.7;transition:transform .4s var(--ease)}
.nav__item:hover .nav__chev,.nav__item:focus-within .nav__chev{transform:rotate(180deg)}
.nav__sub{position:absolute;z-index:5;top:100%;left:50%;padding-top:12px;opacity:0;visibility:hidden;pointer-events:none;transform:translate(-50%,8px);transition:opacity .35s var(--ease),transform .45s var(--ease),visibility 0s .45s}
.nav__item:hover>.nav__sub,.nav__item:focus-within>.nav__sub{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);transition:opacity .35s var(--ease),transform .45s var(--ease),visibility 0s}
.nav__sub-in{display:grid;gap:2px;min-width:250px;max-width:min(560px,90vw);max-height:min(70vh,560px);overflow:auto;padding:8px;border-radius:22px;background:rgb(var(--bg-rgb) / .97);border:1px solid rgba(255,255,255,.85);box-shadow:0 30px 60px -28px rgb(var(--shadow-rgb) / .55),0 1px 0 rgba(255,255,255,.8) inset}
.nav__sub-in.is-wide{grid-template-columns:repeat(2,minmax(0,1fr));min-width:520px}
.nav__links .nav__sub a{display:block;padding:10px 14px;border-radius:13px;font-size:13.5px;line-height:1.4;white-space:normal;color:var(--ink-2);transition:background .3s,color .3s}
.nav__links .nav__sub a:hover,.nav__links .nav__sub a:focus-visible{background:#fff;color:var(--primary)}
.nav__links .nav__sub a.is-l3{padding-left:26px;font-size:13px;color:var(--ink-3)}
.menu__row{display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line-light)}
.menu__row>a{flex:1;border-bottom:0!important}
.menu__toggle{flex:none;width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line-light);color:#fff;transition:transform .45s var(--ease),background .3s}
.menu__toggle svg{width:18px;height:18px}
.menu__toggle[aria-expanded="true"]{transform:rotate(45deg);background:rgb(255 255 255 / .1)}
.menu__subs{display:grid;grid-template-rows:0fr;transition:grid-template-rows .5s var(--ease)}
.menu__subs>div{overflow:hidden;min-height:0;display:grid}
.menu__group.is-open .menu__subs{grid-template-rows:1fr}
.menu__subs a{padding:9px 0 9px 34px;font-size:15.5px;font-weight:500;color:rgb(255 255 255 / .82);border-bottom:1px solid rgb(255 255 255 / .06)}
.menu__subs a.is-l3{padding-left:50px;font-size:14.5px;color:rgb(255 255 255 / .65)}
.menu__subs a:hover{color:#fff}

/* ---------- Trạng thái gửi form đăng ký trang chủ ---------- */
.form__note[data-state="ok"]{padding:12px 16px;border-radius:14px;font-size:14px;color:#166534;background:#f0fdf4;border:1px solid #86efac}
.form__note[data-state="error"]{padding:12px 16px;border-radius:14px;font-size:14px;color:#991b1b;background:#fef2f2;border:1px solid #fca5a5}
.form__note[data-state="busy"]{color:var(--primary)}
.form .btn:disabled{opacity:.6;cursor:wait}

/* ---------- Cộng đồng Minh Trí Kinh Doanh ---------- */
.comm{position:relative;isolation:isolate;overflow:hidden;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(28px,4vw,64px);align-items:center;padding:clamp(30px,5vw,68px);border-radius:var(--r-xl);color:#fff;background:var(--grad-dark);box-shadow:var(--shadow-float)}
.comm__bg{position:absolute;inset:0;z-index:-1}
.comm__bg img{width:100%;height:100%;object-fit:cover;opacity:.32}
.comm__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,#071234 0%,rgb(7 18 52 / .94) 42%,rgb(11 27 77 / .78) 100%),radial-gradient(60% 70% at 100% 0%,rgb(29 92 255 / .4),transparent 70%)}
.comm__text{display:grid;gap:18px;align-content:start}
.comm .h2{color:#fff}
.comm .kicker{color:var(--blue-300)}
.comm .desc{color:rgb(255 255 255 / .78);max-width:52ch}
.comm__badges{display:flex;flex-wrap:wrap;gap:8px}
.comm__badges .chip{background:rgb(255 255 255 / .1);border-color:rgb(255 255 255 / .24);color:#fff}
.comm__badges .ico{width:16px;height:16px;color:var(--blue-300)}
.comm .btn-row{margin-top:6px}
.comm__items{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.comm-item{display:grid;gap:8px;align-content:start;padding:22px 20px;border-radius:var(--r-md);background:rgb(255 255 255 / .07);border:1px solid rgb(255 255 255 / .14);backdrop-filter:blur(8px);transition:transform .6s var(--ease),background .4s}
.comm-item:hover{transform:translateY(-4px);background:rgb(255 255 255 / .11)}
.comm-item__ico{width:44px;height:44px;border-radius:13px;display:grid;place-items:center;margin-bottom:4px;background:rgb(143 180 255 / .14);color:var(--blue-300)}
.comm-item__ico svg{width:21px;height:21px}
.comm-item b{font-size:1.05rem;font-weight:700;letter-spacing:-.015em;color:#fff}
.comm-item span:last-child{font-size:13.5px;line-height:1.6;color:rgb(255 255 255 / .68)}
@media (max-width:1100px){.comm{grid-template-columns:1fr}}
@media (max-width:560px){.comm__items{grid-template-columns:1fr}}