@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url(assets/fonts/inter-latin.woff2) format("woff2"); unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Inter"; font-style: normal; font-weight: 100 900; font-display: swap; src: url(assets/fonts/inter-latin-ext.woff2) format("woff2"); unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
  --bg: #f5f7f5; --bg2: #ebf0ed; --ink: #0b1f1a; --muted: #5b6b65; --faint: #93a29c; --rule: #e1e7e3; --card: #ffffff;
  --dark: #0a1512; --dark2: #10211c; --dline: rgba(220,255,240,.10); --dmuted: #93a29c; --accent: #1fc896; --accent-d: #0e8f68;
  --serif: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, "DejaVu Sans Mono", monospace;
  --pad: clamp(18px, 4.4vw, 88px);
  --grain: 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 1  0 0 0 0 1  0 0 0 0 1  0 0 0 .55 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body { margin: 0; color: var(--ink); background: var(--bg); font: 400 17px/1.55 var(--sans); letter-spacing: -.011em; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; letter-spacing: inherit; border: 0; background: none; cursor: pointer; }
h1, h2, h3, h4, p, figure, ol, ul { margin: 0; padding: 0; }
ol, ul { list-style: none; }
pre, code { font-family: var(--mono); }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 8px; }
.card-dark :focus-visible, .win :focus-visible, .visual :focus-visible { outline-color: #fff; }
.skip { position: fixed; left: 12px; top: -60px; z-index: 100; padding: 10px 16px; color: #fff; background: var(--ink); border-radius: 999px; transition: top .2s; } .skip:focus { top: 12px; }

/* ---------- ký hiệu nhà cung cấp ---------- */
.pi { display: inline-block; flex: 0 0 auto; width: 1em; height: 1em; background: center / contain no-repeat; }
.pi.m { background: currentColor; -webkit-mask: var(--i) center / contain no-repeat; mask: var(--i) center / contain no-repeat; }
.pi:not(.m) { background-image: var(--i); }
.pi-openai { --i: url(assets/providers/openai.svg); } .pi-anthropic { --i: url(assets/providers/anthropic.svg); } .pi-claude { --i: url(assets/providers/claude.svg); } .pi-voidd { --i: url(assets/providers/voidd.svg); } .pi-gemini { --i: url(assets/providers/gemini.svg); } .pi-grok { --i: url(assets/providers/grok.svg); } .pi-meta { --i: url(assets/providers/meta.svg); } .pi-deepseek { --i: url(assets/providers/deepseek.svg); } .pi-mistral { --i: url(assets/providers/mistral.svg); } .pi-qwen { --i: url(assets/providers/qwen.svg); } .pi-kimi { --i: url(assets/providers/kimi.svg); } .pi-zhipu { --i: url(assets/providers/zhipu.svg); } .pi-minimax { --i: url(assets/providers/minimax.svg); } .pi-perplexity { --i: url(assets/providers/perplexity.svg); } .pi-cohere { --i: url(assets/providers/cohere.svg); } .pi-openrouter { --i: url(assets/providers/openrouter.svg); } .pi-ollama { --i: url(assets/providers/ollama.svg); } .pi-lmstudio { --i: url(assets/providers/lmstudio.svg); } .pi-huggingface { --i: url(assets/providers/huggingface.svg); } .pi-azure { --i: url(assets/providers/azure.svg); } .pi-bedrock { --i: url(assets/providers/bedrock.svg); } .pi-nvidia { --i: url(assets/providers/nvidia.svg); } .pi-groq { --i: url(assets/providers/groq.svg); } .pi-together { --i: url(assets/providers/together.svg); } .pi-fireworks { --i: url(assets/providers/fireworks.svg); } .pi-siliconcloud { --i: url(assets/providers/siliconcloud.svg); }

/* ---------- nút ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 20px; border-radius: 999px; font-weight: 500; font-size: 15px; line-height: 1.2; letter-spacing: -.01em; transition: transform .2s, background .2s, box-shadow .2s; }
.btn-sm { padding: 9px 16px; font-size: 14px; } .btn-lg { padding: 16px 28px; font-size: 17px; }
.btn-dark { color: #fff; background: var(--ink); } .btn-dark:hover { background: #143029; }
.btn-light { color: var(--ink); background: #f2fbf7; } .btn-light:hover { background: #ffffff; transform: translateY(-1px); }
.link-arrow { display: inline-flex; gap: 8px; align-items: center; font-size: 17px; font-weight: 500; opacity: .92; } .link-arrow:hover { opacity: 1; } .link-arrow i { font-style: normal; transition: transform .2s; } .link-arrow:hover i { transform: translate(2px, -2px); }
.chip { display: inline-flex; padding: 10px 18px; background: #e3ebe7; border-radius: 999px; font-size: 15px; font-weight: 500; transition: background .2s; } .chip:hover { background: #d6e2dc; }
.linkish { color: inherit; text-decoration: underline; text-underline-offset: 3px; font-size: inherit; }

/* ---------- thanh trên ---------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 60; display: flex; align-items: center; justify-content: space-between; height: 76px; padding: 0 var(--pad); background: rgba(245,247,245,.94); backdrop-filter: blur(18px) saturate(1.4); -webkit-backdrop-filter: blur(18px) saturate(1.4); box-shadow: 0 1px 0 var(--rule); transition: background .25s, box-shadow .25s; }
.nav.scrolled { background: rgba(245,247,245,.97); }
.brand { display: inline-flex; align-items: center; gap: 9px; font-family: var(--serif); font-size: 25px; font-weight: 700; letter-spacing: -.03em; }
.nav-links { display: flex; align-items: center; gap: clamp(14px, 3vw, 36px); } .nav-links > a:not(.btn) { font-size: 16px; color: #3e4d47; } .nav-links > a:not(.btn):hover { color: var(--ink); }

/* ---------- thẻ tối ---------- */
.card-dark { position: relative; overflow: hidden; color: #f2f7f4; background: var(--dark); border-radius: 36px; margin: 0 clamp(8px, 1.1vw, 22px); isolation: isolate; }
.hero-bg, .scene-bg { position: absolute; inset: -12% 0; z-index: -1; will-change: transform; background:
  radial-gradient(60% 55% at 50% -8%, color-mix(in srgb, var(--accent) 38%, transparent), transparent 70%),
  radial-gradient(40% 40% at 88% 96%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
  var(--dark); }
.hero-bg::before, .scene-bg::before { content: ''; position: absolute; inset: 0; opacity: .1; background-image: var(--grain); mix-blend-mode: screen; }
.hero-bg::after, .scene-bg::after { content: ''; position: absolute; inset: auto 0 0; height: 55%; opacity: .5; background: radial-gradient(rgba(255,255,255,.5) 1px, transparent 1.4px) 0 0 / 10px 10px; -webkit-mask: linear-gradient(transparent, #000 70%); mask: linear-gradient(transparent, #000 70%); animation: sweep 14s ease-in-out infinite alternate; }
@keyframes sweep { to { transform: translateX(-3%); opacity: .3; } }

/* ---------- hero ---------- */
.hero { margin-top: 76px; padding: clamp(56px, 9vw, 120px) var(--pad) 0; text-align: center; }
.hero-copy { display: grid; justify-items: center; }
.beta { display: inline-flex; align-items: center; gap: 10px; padding: 7px 14px; color: #cfcfd3; border: 1px solid var(--dline); border-radius: 999px; font-size: 14px; background: rgba(255,255,255,.04); animation: fade .8s .1s both; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 0 rgba(74,222,128,.6); animation: ping 2.2s infinite; } @keyframes ping { 70% { box-shadow: 0 0 0 9px transparent; } }
.hero-title { margin-top: 28px; font-family: var(--serif); font-size: clamp(50px, 9.4vw, 140px); font-weight: 650; line-height: .98; letter-spacing: -.045em; color: #fff; }
.ln { display: block; overflow: hidden; padding: .04em .06em .3em; margin: 0 -.06em -.2em; } .ln > span { display: inline-block; padding-bottom: .24em; margin-bottom: -.2em; background: linear-gradient(180deg, #ffffff 35%, #a7f3d4 120%); -webkit-background-clip: text; background-clip: text; color: transparent; transform: translateY(105%); animation: rise 1.15s cubic-bezier(.2,.8,.2,1) .15s forwards; } .ln:nth-child(2) > span { animation-delay: .3s; }
@keyframes rise { to { transform: none; } } @keyframes fade { from { opacity: 0; transform: translateY(10px); } }
.lede { max-width: 640px; margin-top: 30px; color: #b4b4ba; font-size: clamp(17px, 1.7vw, 21px); line-height: 1.5; animation: fade .9s .55s both; }
.hero-cta { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 28px; margin-top: 38px; animation: fade .9s .7s both; }

/* ---------- cửa sổ app mẫu ---------- */
.win { position: relative; width: 100%; text-align: left; color: #e8e8ea; background: #08130f; border: 1px solid rgba(220,255,240,.16); border-bottom: 0; border-radius: 18px 18px 0 0; box-shadow: 0 -20px 120px rgba(255,255,255,.07);  transform-origin: 50% 0; transform: perspective(1700px) rotateX(calc((1 - var(--p, 1)) * var(--tilt, 15deg))) rotateY(var(--ry, 0deg)) translateY(calc((1 - var(--p, 1)) * 40px)) scale(calc(.95 + var(--p, 1) * .05)); animation: fadeonly 1.1s .85s both; will-change: transform; }
.win-bar { display: flex; align-items: center; gap: 8px; height: 44px; padding: 0 16px; border-bottom: 1px solid var(--dline); }
.t { width: 12px; height: 12px; border-radius: 50%; } .t.r { background: #ff5f57; } .t.y { background: #febc2e; } .t.g { background: #28c840; }
.win-title { margin: 0 auto; transform: translateX(-26px); color: #77777d; font-size: 12.5px; }
.win-body { display: grid; grid-template-columns: 236px 1fr; height: clamp(420px, 46vw, 560px); overflow: hidden; }
.w-side { display: flex; flex-direction: column; gap: 3px; padding: 14px 12px; background: #07110e; border-right: 1px solid var(--dline); font-size: 13.5px; }
.w-new { display: flex; align-items: center; gap: 10px; padding: 7px 8px; margin-bottom: 8px; font-weight: 500; } .w-new b { display: grid; place-items: center; width: 20px; height: 20px; color: #fff; background: var(--accent); border-radius: 50%; font-size: 14px; line-height: 1; }
.w-nav { display: grid; gap: 1px; margin-bottom: 16px; } .w-nav span { padding: 7px 10px; color: #b9b9bf; border-radius: 8px; }
.w-lab { padding: 4px 10px; color: #66666c; font-size: 11.5px; }
.w-chat { padding: 7px 10px; color: #a8a8ae; border-radius: 8px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } .w-chat.on { color: #fff; background: #13261f; }
.w-user { display: flex; align-items: center; gap: 10px; margin-top: auto; padding: 10px 8px 2px; border-top: 1px solid var(--dline); font-size: 18px; } .w-user div { font-size: 13px; line-height: 1.3; } .w-user b { display: block; font-weight: 600; } .w-user small { color: #77777d; font-size: 11.5px; }
.w-main { position: relative; display: flex; flex-direction: column; min-width: 0; }
.w-msgs { display: flex; flex-direction: column; gap: 16px; flex: 1; padding: 28px clamp(16px, 5vw, 64px) 12px; overflow: hidden; font-size: 15px; }
.w-user-msg { align-self: flex-end; max-width: 78%; padding: 10px 16px; background: #143029; border-radius: 16px; }
.w-bot { max-width: 86%; line-height: 1.6; color: #dcdcdf; }
.w-tool { max-width: 420px; background: #0e1c18; border: 1px solid var(--dline); border-radius: 12px; font-size: 12.5px; transition: border-color .3s; }
.w-tool-h { display: flex; align-items: center; gap: 9px; padding: 9px 12px; color: #9b9ba1; } .w-tool-h code { color: #fff; font-size: 12px; } .w-tool-h small { margin-left: auto; }
.w-tool-b { display: flex; gap: 8px; padding: 2px 12px 12px; } .w-tool-b span { padding: 5px 11px; border: 1px solid var(--dline); border-radius: 8px; font-weight: 500; transition: transform .15s; } .allow { color: #fff; background: var(--accent); border-color: transparent !important; } .allow.press { transform: scale(.92); }
.w-tool.done { border-color: rgba(74,222,128,.45); } .w-tool.done .w-tool-b { display: none; } .w-tool.done small { color: #4ade80; }
.js .w-user-msg:not(.show), .js .w-bot:not(.show), .js .w-tool:not(.show) { opacity: 0; transform: translateY(8px); } .w-user-msg, .w-bot, .w-tool { transition: opacity .4s, transform .4s, border-color .3s; }
.w-bot.typing::after { content: ''; display: inline-block; width: 7px; height: 15px; margin-left: 2px; vertical-align: -2px; background: var(--accent); animation: blink 1s steps(2) infinite; } @keyframes blink { 50% { opacity: 0; } }
.w-composer { display: flex; align-items: center; gap: 10px; margin: 0 clamp(16px, 5vw, 64px) 18px; padding: 12px 12px 12px 18px; color: #77777d; background: #0e1c18; border: 1px solid var(--dline); border-radius: 18px; font-size: 15px; }
.w-composer > span:first-child { flex: 1; }
.w-model { display: inline-flex; align-items: center; gap: 8px; padding: 5px 10px; color: #cfcfd3; border-radius: 9px; font-size: 13px; background: #143029; } .w-model em { font-style: normal; color: #77777d; }
.w-send { width: 32px; height: 32px; border-radius: 9px; background: var(--accent); position: relative; } .w-send::after { content: ''; position: absolute; left: 11px; top: 11px; width: 9px; height: 9px; border-left: 2px solid #fff; border-top: 2px solid #fff; transform: rotate(45deg) translate(1px, 1px); }
.w-pop { position: absolute; right: clamp(16px, 5vw, 64px); bottom: 76px; width: 330px; max-width: calc(100% - 32px); overflow: hidden; background: #0e1c18; border: 1px solid rgba(220,255,240,.16); border-radius: 14px; box-shadow: 0 24px 60px rgba(0,0,0,.6); font-size: 13px; opacity: 0; transform: translateY(8px) scale(.98); pointer-events: none; transition: opacity .35s, transform .35s; }
.w-pop.open { opacity: 1; transform: none; }
.w-search { margin: 8px; padding: 9px 12px; color: #77777d; background: #08130f; border-radius: 9px; }
.w-list { max-height: 214px; overflow: hidden; padding: 0 6px 6px; }
.w-grp { display: flex; align-items: center; gap: 8px; padding: 8px 8px 4px; color: #77777d; font-size: 11px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; }
.w-opt { display: flex; align-items: center; gap: 9px; padding: 6px 8px; border-radius: 8px; color: #dcdcdf; } .w-opt.sel { background: rgba(31,200,150,.16); } .w-opt em { margin-left: auto; color: var(--accent); font-style: normal; }
.w-think { padding: 10px 12px 12px; background: #08130f; border-top: 1px solid var(--dline); } .w-think-h { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 8px; } .w-think-h b { font-weight: 600; } .w-think-h small { color: #8c8c92; font-size: 11.5px; text-align: right; }
.w-pills, .vr-pills { display: flex; gap: 2px; padding: 3px; background: #143029; border-radius: 10px; } .w-pills span, .vr-pills span { flex: 1; padding: 5px 4px; color: #9b9ba1; border-radius: 8px; font-size: 12px; text-align: center; transition: background .25s, color .25s; } .w-pills .on, .vr-pills .on { color: #fff; background: #34443e; font-weight: 600; }

/* ---------- cảnh chữ động ---------- */
.scene { height: clamp(520px, 80vh, 860px); margin-top: 22px; display: grid; place-items: center; text-align: center; }
.scene > p { position: absolute; left: 0; right: 0; font-family: var(--serif); font-size: clamp(38px, 6.6vw, 98px); font-weight: 650; letter-spacing: -.04em; line-height: 1; color: #fff; }
.scene-top { top: 26%; } .scene-bottom { bottom: 22%; color: #7f938b !important; }
.scene-word { display: inline-flex; align-items: center; gap: clamp(14px, 2vw, 28px); font-family: var(--serif); font-size: clamp(46px, 8.6vw, 126px); font-weight: 600; letter-spacing: -.045em; line-height: 1; color: #fff; }
.scene-word .pi { font-size: .78em; }
.scene-word.in { animation: blurin .7s cubic-bezier(.2,.8,.2,1) both; } @keyframes blurin { from { opacity: 0; filter: blur(22px); transform: translateY(18px) scale(.98); } }
.scene-ctl { position: absolute; right: 22px; bottom: 22px; display: flex; gap: 8px; } .scene-ctl button { display: grid; place-items: center; width: 48px; height: 48px; color: #fff; background: rgba(255,255,255,.1); border-radius: 50%; backdrop-filter: blur(8px); transition: background .2s; } .scene-ctl button:hover { background: rgba(255,255,255,.2); }
#scene-pause .ic-play, #scene-pause[aria-pressed=true] .ic-pause { display: none; } #scene-pause[aria-pressed=true] .ic-play { display: block; }

/* ---------- khung có đường kẻ dọc ---------- */
.frame { width: min(1840px, 100%); margin: 0 auto; padding-inline: var(--pad); }
.head-block { margin-top: clamp(80px, 12vw, 180px); }
.h2 { font-family: var(--serif); font-size: clamp(38px, 5.6vw, 82px); font-weight: 650; line-height: 1.02; letter-spacing: -.04em; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; } .two > p { max-width: 780px; color: #4f5f58; font-size: clamp(18px, 1.9vw, 26px); line-height: 1.35; letter-spacing: -.02em; }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s cubic-bezier(.2,.8,.2,1), transform .9s cubic-bezier(.2,.8,.2,1); } .reveal.in, .no-js .reveal { opacity: 1; transform: none; }

/* ---------- tab dính + vùng nội dung ---------- */
.visual { position: relative; overflow: hidden; display: grid; place-items: center; min-height: clamp(380px, 46vw, 640px); padding: clamp(20px, 4vw, 56px); border-radius: 22px; }
.visual.dark { color: #f2fbf7; background: radial-gradient(70% 80% at 80% 0%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 70%), #0a1512; }
.visual.dark::before { content: ''; position: absolute; inset: 0; opacity: .1; background-image: var(--grain); mix-blend-mode: screen; pointer-events: none; }
.visual.dark::after { content: ''; position: absolute; inset: auto 0 0; height: 40%; opacity: .35; background: radial-gradient(rgba(255,255,255,.55) 1px, transparent 1.4px) 0 0 / 9px 9px; -webkit-mask: linear-gradient(transparent, #000); mask: linear-gradient(transparent, #000); pointer-events: none; }
.visual > * { position: relative; z-index: 1; }

.v-providers { align-content: center; gap: 22px; }
.vp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; width: min(620px, 100%); }
.vp { position: relative; display: grid; gap: 2px; padding: 16px; background: rgba(20,20,22,.82); border: 1px solid var(--dline); border-radius: 14px; backdrop-filter: blur(6px); } .vp .pi { margin-bottom: 14px; font-size: 26px; } .vp b { font-weight: 500; font-size: 15px; } .vp small { color: var(--dmuted); font-size: 12.5px; } .vp em { position: absolute; top: 16px; right: 16px; width: 7px; height: 7px; border-radius: 50%; background: #4ade80; animation: ping 2.4s infinite; }
.vp:nth-child(2) em { animation-delay: .4s; } .vp:nth-child(3) em { animation-delay: .8s; } .vp:nth-child(4) em { animation-delay: 1.2s; } .vp:nth-child(5) em { animation-delay: 1.6s; }
.vp-form { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; width: min(620px, 100%); padding: 14px 16px; background: rgba(20,20,22,.82); border: 1px solid var(--dline); border-radius: 14px; font: 14px var(--mono); color: var(--dmuted); } .vp-form b { color: #fff; font-weight: 400; } .vp-form .seg { display: flex; margin-left: auto; padding: 3px; background: #143029; border-radius: 9px; font-family: var(--sans); } .seg span { padding: 4px 11px; border-radius: 7px; font-size: 12.5px; } .seg span:first-child { color: #fff; background: #34443e; }
.caret { display: inline-block; width: 2px; height: 1.1em; margin-left: 1px; background: var(--accent); animation: blink 1s steps(2) infinite; }

.v-reason { gap: 26px; align-content: center; }
.vr-btn { display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px; font-size: 20px; background: rgba(20,20,22,.85); border: 1px solid var(--dline); border-radius: 14px; } .vr-btn b { font-weight: 500; color: var(--accent); }
.v-reason .vr-pills { width: min(520px, 100%); } .v-reason .vr-pills span { padding: 10px 6px; font-size: 15px; }
.vr-code { width: min(520px, 100%); margin: 0; padding: 18px 20px; color: #cfcfd3; background: rgba(8,8,9,.78); border: 1px solid var(--dline); border-radius: 14px; font-size: 14px; line-height: 1.7; white-space: pre-wrap; min-height: 128px; } .vr-code .k { color: #8ab4ff; } .vr-code .s { color: #5ef2b5; } .vr-code .c { color: #77777d; }

.v-tools { gap: 24px; align-content: center; }
.vt-card { width: min(480px, 100%); background: rgba(22,22,25,.9); border: 1px solid var(--dline); border-radius: 16px; font-size: 14px; transition: border-color .3s; } .vt-h { display: flex; align-items: center; gap: 10px; padding: 14px 16px; color: var(--dmuted); } .vt-h code { color: #fff; } .vt-h small { margin-left: auto; font-size: 13px; }
.vt-card pre { margin: 0 16px; padding: 12px 14px; background: #08080a; border-radius: 10px; font-size: 13px; color: #e0e0e3; white-space: pre-wrap; }
.vt-b { display: flex; gap: 8px; padding: 14px 16px; } .vt-b span { padding: 7px 14px; border: 1px solid var(--dline); border-radius: 9px; font-weight: 500; font-size: 13.5px; transition: transform .15s; } .vt-b .allow.press { transform: scale(.92); }
.vt-out { display: none; margin-bottom: 16px !important; color: #4ade80 !important; } .vt-card.done .vt-out { display: block; } .vt-card.done .vt-b { display: none; } .vt-card.done { border-color: rgba(74,222,128,.4); } .vt-card.done small { color: #4ade80; } .vt-card.done .vt-out { margin-top: 10px; }
.vt-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; } .vt-row span { padding: 8px 16px; color: #cfcfd3; background: rgba(20,20,22,.8); border: 1px solid var(--dline); border-radius: 999px; font-size: 14px; }

.vs-term { margin: 0; width: min(520px, 100%); padding: 26px 28px; background: rgba(8,8,9,.82); border: 1px solid var(--dline); border-radius: 16px; color: #e8e8ea; font-size: 15px; line-height: 2; white-space: pre; overflow-x: auto; } .vs-term .dim { color: #66666c; } .vs-term .k { color: #9b9ba1; } .vs-term .v { color: #5ef2b5; } .vs-term .ok { color: #4ade80; }

/* ---------- 4 thẻ nhỏ ---------- */
.tools-head { margin-top: clamp(100px, 14vw, 220px); }
.cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(14px, 2vw, 32px); margin-top: clamp(40px, 6vw, 90px); }
.mini figcaption { margin-top: 24px; color: #56665f; font-size: 17px; line-height: 1.5; } .mini figcaption b { color: var(--ink); font-weight: 600; }
.mini-v { display: grid; place-items: center; align-content: center; gap: 12px; aspect-ratio: 1 / 1.12; padding: 18px; background: var(--card); border: 1px solid #e3ebe7; border-radius: 22px; overflow: hidden; }
.k-in { display: flex; align-items: center; width: 100%; padding: 11px 14px; font: 13px var(--mono); background: #eef3f0; border-radius: 12px; min-height: 42px; } .k-in .caret { background: var(--ink); }
.k-models { display: flex; flex-wrap: wrap; gap: 6px; width: 100%; } .k-models span { padding: 4px 10px; font: 12px var(--mono); color: #444; background: #eef3f0; border-radius: 999px; animation: pop 6s infinite both; } .k-models span:nth-child(2) { animation-delay: .15s; } .k-models span:nth-child(3) { animation-delay: .3s; }
@keyframes pop { 0%, 38% { opacity: 0; transform: translateY(6px); } 48%, 90% { opacity: 1; transform: none; } 100% { opacity: 0; } }
.mv2-row { display: flex; align-items: center; gap: 12px; width: 100%; padding: 12px 14px; font-size: 18px; background: #eef3f0; border-radius: 12px; animation: nudge 5s infinite both; } .mv2-row b { font-size: 15px; font-weight: 500; } .mv2-row:nth-child(2) { animation-delay: .5s; } .mv2-row:nth-child(3) { animation-delay: 1s; }
@keyframes nudge { 0%, 70%, 100% { transform: none; } 80% { transform: translateX(6px); } }
.mv3-pills { display: flex; gap: 2px; width: 100%; padding: 3px; background: #e6ede9; border-radius: 10px; } .mv3-pills span { flex: 1; padding: 7px 0; text-align: center; font-size: 13px; color: #777; border-radius: 8px; } .mv3-pills .on { color: #fff; background: var(--ink); }
.mv3-bar { width: 100%; height: 6px; background: #e6ede9; border-radius: 99px; overflow: hidden; } .mv3-bar i { display: block; width: 0; height: 100%; background: var(--ink); border-radius: inherit; animation: grow 4s ease-in-out infinite; } @keyframes grow { 0% { width: 8%; } 60%, 100% { width: 92%; } }
.mv4 { gap: 14px; } .mv4-t { display: flex; justify-content: space-between; width: 100%; font-size: 13px; } .mv4-t span { font-family: var(--mono); color: #777; } .mv4-bar { width: 100%; height: 6px; background: #e6ede9; border-radius: 99px; overflow: hidden; } .mv4-bar i { display: block; width: 0; height: 100%; background: var(--ink); border-radius: inherit; } .mv4-btn { padding: 8px 14px; color: #fff; background: var(--ink); border-radius: 10px; font-size: 13px; font-weight: 500; opacity: .2; transition: opacity .3s; } .mv4-btn.on { opacity: 1; }

/* ---------- hãng ---------- */
.providers { margin-top: clamp(100px, 14vw, 220px); }
.marq { margin: clamp(40px, 6vw, 90px) calc(var(--pad) * -1) 0; overflow: hidden; -webkit-mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.marq-track { display: flex; width: max-content; animation: marq 70s linear infinite; } .marq.paused .marq-track { animation-play-state: paused; } @keyframes marq { to { transform: translateX(-50%); } }
.marq-row { display: flex; gap: 14px; padding-right: 14px; } .marq-row li { display: inline-flex; align-items: center; gap: 12px; padding: 16px 26px; font-size: 20px; font-weight: 500; letter-spacing: -.03em; white-space: nowrap; background: var(--card); border: 1px solid #e3ebe7; border-radius: 999px; } .marq-row .pi { font-size: 24px; }
.marq-note { margin-top: 22px; color: var(--muted); font-size: 14px; }

/* ---------- bảng ---------- */
.table-sec { margin-top: clamp(100px, 14vw, 220px); padding: clamp(70px, 10vw, 150px) 0 clamp(50px, 7vw, 100px); color: #f2f7f4; background: var(--dark); } .table-sec .two > p { color: #a8a8ae; }
.tr b { font-family: var(--serif); font-weight: 600; }
.tbl { margin-top: clamp(48px, 7vw, 100px); border-top: 1px solid var(--dline); }
.tr { display: grid; grid-template-columns: 1.1fr repeat(4, 1fr); gap: 20px; padding: 24px 0; border-bottom: 1px solid var(--dline); color: #8d8d93; font-size: 17px; transition: background .2s; } .tr:not(.th):hover { background: rgba(255,255,255,.04); color: #fff; }
.tr.th { padding: 20px 0; color: #77777d; font-size: 16px; }
.tr b { display: block; color: #fff; font-weight: 500; font-size: 20px; letter-spacing: -.03em; } .tr u { display: inline-block; margin-top: 4px; color: #a8a8ae; font-size: 15px; text-decoration: none; border-bottom: 1px solid rgba(255,255,255,.28); }

/* ---------- tải về ---------- */
.dl { margin-top: clamp(100px, 14vw, 220px); }
.os3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(14px, 2vw, 28px); margin-top: clamp(40px, 6vw, 80px); }
.os { display: grid; align-content: start; gap: 14px; padding: 32px; background: var(--card); border: 1px solid #e3ebe7; border-radius: 24px; } .os h3 { font-family: var(--serif); font-size: 36px; font-weight: 600; letter-spacing: -.035em; } .os p { margin-bottom: 14px; color: #56665f; min-height: 52px; } .os .btn { justify-self: start; }

/* ---------- hỏi đáp ---------- */
.faq { margin-top: clamp(100px, 14vw, 220px); } .faq-list { margin-top: clamp(30px, 5vw, 60px); border-top: 1px solid var(--rule); }
details { border-bottom: 1px solid var(--rule); } summary { position: relative; padding: 26px 56px 26px 0; font-family: var(--serif); font-size: clamp(20px, 2vw, 27px); font-weight: 600; letter-spacing: -.025em; cursor: pointer; list-style: none; } summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 6px; top: 50%; transform: translateY(-52%); font-size: 30px; font-weight: 300; transition: transform .3s; } details[open] summary::after { transform: translateY(-52%) rotate(45deg); }
details p { max-width: 900px; padding: 0 56px 28px 0; color: #56665f; font-size: 18px; line-height: 1.6; animation: fade .4s both; }

/* ---------- kêu gọi + chân trang ---------- */
.cta { display: grid; grid-template-columns: minmax(0, 1fr); justify-items: center; gap: 26px; margin-top: clamp(64px, 8vw, 120px); padding: clamp(64px, 7vw, 108px) 24px; text-align: center; }
.cta-title { font-family: var(--serif); font-size: clamp(44px, 7.4vw, 112px); font-weight: 650; line-height: 1; letter-spacing: -.045em; background: linear-gradient(180deg, #ffffff 30%, #a7f3d4); -webkit-background-clip: text; background-clip: text; color: transparent; }
.footer { padding-top: clamp(70px, 9vw, 130px); padding-bottom: 40px; margin-top: 22px; background: #fff; border-radius: 36px 36px 0 0; width: calc(100% - 2 * clamp(8px, 1.1vw, 22px)); } .cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; } .cols h4 { margin-bottom: 20px; color: var(--muted); font-size: 16px; font-weight: 400; } .cols a:not(.brand) { display: block; margin-bottom: 14px; font-size: 18px; letter-spacing: -.02em; } .cols a:hover { opacity: .6; } .cols i { color: var(--faint); font-style: normal; font-size: .8em; }
.brandcol { justify-self: end; text-align: right; } .brandcol p { margin-top: 10px; color: var(--muted); font-size: 15px; } .brandcol .brand { font-size: 22px; }
.legal { margin-top: clamp(50px, 7vw, 100px); padding-top: 24px; border-top: 1px solid var(--rule); color: var(--muted); font-size: 14px; }

@media (max-width: 1000px) {
  .two { grid-template-columns: 1fr; gap: 20px; }
  .sticky { grid-template-columns: 1fr; } .tabs { display: none; }
  .cards4 { grid-template-columns: repeat(2, 1fr); } .os3 { grid-template-columns: 1fr; } .cols { grid-template-columns: repeat(2, 1fr); } .brandcol { justify-self: start; text-align: left; }
  .tr { grid-template-columns: 1fr 1fr; } .tr.th { display: none; } .tr > span:first-child { grid-column: 1 / -1; }
  .win-body { grid-template-columns: 1fr; } .w-side { display: none; }
}
@media (max-width: 640px) {
  .nav-links > a:not(.btn) { display: none; } .cards4 { grid-template-columns: 1fr; } .vp-grid { grid-template-columns: repeat(2, 1fr); } .card-dark { border-radius: 26px; } .w-pop { width: 290px; } .win-body { height: 440px; } .scene-top { top: 24%; } .scene-bottom { bottom: 20%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; } .ln > span { transform: none; } .marq-track { animation: none; }
}

/* ---------- liên kết tải trực tiếp ---------- */
.dlinks { display: grid; gap: 8px; margin-top: 8px; }
.dlink { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; font-size: 16px; font-weight: 500; letter-spacing: -.02em; background: var(--bg); border: 1px solid var(--rule); border-radius: 14px; transition: background .2s, color .2s, border-color .2s; }
.dlink small { color: var(--muted); font-size: 14px; font-weight: 400; transition: color .2s; }
.dlink:hover { color: #fff; background: var(--ink); border-color: var(--ink); } .dlink:hover small { color: #c9c9ce; }
.dlink.pick { border-color: var(--ink); }
.os p { min-height: 0; margin-bottom: 6px; }
.dl-note { margin-top: 22px; color: var(--muted); font-size: 14px; } .dl-note a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------- phần cá nhân hóa ---------- */
.w-greet { font-family: var(--serif); font-size: clamp(22px, 2.6vw, 34px); font-weight: 600; letter-spacing: -.03em; color: #e6f2ed; margin-bottom: 4px; }
.personal { margin-top: clamp(100px, 14vw, 220px); }
.pers { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(16px, 2.4vw, 32px); margin-top: clamp(40px, 6vw, 80px); }
.pers-ctl { display: grid; gap: 26px; align-content: start; padding: clamp(22px, 3vw, 40px); background: var(--card); border: 1px solid var(--rule); border-radius: 28px; }
.pf { display: grid; gap: 10px; } .pf > span { color: var(--muted); font-size: 14px; letter-spacing: -.005em; }
.pf input { width: 100%; padding: 15px 18px; font: inherit; font-size: 20px; letter-spacing: -.02em; color: var(--ink); background: var(--bg); border: 1px solid var(--rule); border-radius: 14px; outline: 0; transition: border-color .2s, box-shadow .2s; }
.pf input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent); }
.sw { display: flex; gap: 12px; } .sw button { width: 38px; height: 38px; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(0,0,0,.12); transition: transform .15s, box-shadow .15s; } .sw button:hover { transform: scale(1.1); } .sw button[aria-checked=true] { box-shadow: 0 0 0 3px var(--card), 0 0 0 5px var(--ink); }
.sw [data-a=voidd] { background: #1fc896; } .sw [data-a=blue] { background: #4b7be0; } .sw [data-a=violet] { background: #8466d0; } .sw [data-a=rose] { background: #cf5a79; }
.as { display: flex; flex-wrap: wrap; gap: 8px; } .as button { padding: 10px 18px; font-size: 16px; font-weight: 500; letter-spacing: -.01em; background: var(--bg); border: 1px solid var(--rule); border-radius: 999px; transition: background .2s, color .2s, border-color .2s; } .as button:hover { border-color: var(--ink); } .as button[aria-checked=true] { color: #fff; background: var(--ink); border-color: var(--ink); }
.pers-note { color: var(--muted); font-size: 14px; line-height: 1.5; }
.pers-view { position: relative; overflow: hidden; display: grid; align-content: center; justify-items: center; gap: 22px; min-height: 420px; padding: clamp(22px, 3vw, 44px); color: #f2fbf7; background: radial-gradient(80% 70% at 70% 0%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 70%), var(--dark); border-radius: 28px; transition: background .4s; }
.pers-view::before { content: ''; position: absolute; inset: 0; opacity: .1; background-image: var(--grain); mix-blend-mode: screen; pointer-events: none; }
.pers-view > * { position: relative; }
.pv-hello { display: flex; align-items: center; gap: 14px; font-family: var(--serif); font-size: clamp(28px, 3.4vw, 46px); font-weight: 650; letter-spacing: -.035em; text-align: center; } .pv-hello .pi { font-size: .9em; }
.pv-box { width: min(480px, 100%); padding: 18px 18px 14px; color: #93a29c; background: rgba(236,255,247,.06); border: 1px solid var(--dline); border-radius: 22px; backdrop-filter: blur(6px); }
.pv-row { display: flex; align-items: center; justify-content: space-between; margin-top: 26px; }
.pv-row em { padding: 5px 12px; color: var(--accent); background: color-mix(in srgb, var(--accent) 16%, transparent); border-radius: 999px; font-style: normal; font-size: 13px; font-weight: 500; transition: color .3s, background .3s; }
.pv-send { position: relative; width: 34px; height: 34px; border-radius: 10px; background: var(--accent); transition: background .3s; } .pv-send::after { content: ''; position: absolute; left: 12px; top: 12px; width: 9px; height: 9px; border-left: 2px solid #fff; border-top: 2px solid #fff; transform: rotate(45deg) translate(1px, 1px); }
.pv-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; } .pv-chips span { padding: 7px 15px; color: #c3d6ce; border: 1px solid var(--dline); border-radius: 12px; font-size: 14px; }
@media (max-width: 1000px) { .pers { grid-template-columns: 1fr; } }

/* ---------- đồ họa chuyển động ---------- */
@keyframes fadeonly { from { opacity: 0; } }
.progress { position: fixed; top: 0; left: 0; right: 0; z-index: 80; height: 3px; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--accent), #5ef2b5); pointer-events: none; }
.fx { position: absolute; inset: 0; z-index: -1; width: 100%; height: 100%; pointer-events: none; }
.hero .fx, .cta .fx { z-index: 0; } .hero-copy, .win-stage, .cta > :not(.fx):not(.hero-bg):not(.cta-glow) { position: relative; z-index: 1; }
.cta .fx { z-index: 0; } .cta-title, .cta .btn { position: relative; z-index: 1; }
.win-stage { position: relative; width: min(1180px, 100%); margin: clamp(104px, 11vw, 156px) auto 0; }
.chips { position: absolute; inset: 0; z-index: 3; pointer-events: none; }
.oc { position: absolute; display: inline-flex; align-items: center; gap: 9px; padding: 9px 16px 9px 12px; color: #e6f2ed; background: rgba(12,28,23,.72); border: 1px solid var(--dline); border-radius: 999px; font-size: 15px; font-weight: 500; letter-spacing: -.01em; backdrop-filter: blur(10px); box-shadow: 0 18px 40px rgba(0,0,0,.45); will-change: transform; }
.oc .pi { font-size: 20px; }
/* Các chip nằm ngoài khung cửa sổ (trên và dưới) để không che nội dung giao diện mẫu */
.oc1 { left: 1%; top: -76px; } .oc2 { left: 21%; top: -92px; } .oc3 { left: 6%; bottom: -80px; } .oc4 { right: 1%; top: -76px; } .oc5 { right: 21%; top: -92px; } .oc6 { right: 6%; bottom: -80px; }
.split .w { display: inline-block; overflow: hidden; vertical-align: top; padding: .06em .02em .32em; margin: -.06em -.02em -.32em; } .split .w > span { display: inline-block; padding-bottom: .26em; margin-bottom: -.26em; }
.js .split .w > span { transform: translateY(112%) rotate(4deg); transform-origin: 0 100%; transition: transform .9s cubic-bezier(.2,.8,.2,1); transition-delay: calc(var(--i, 0) * 60ms); }
.js .split.in .w > span { transform: none; }
.h2.reveal.split, .no-js .h2.reveal { opacity: 1; transform: none; }
.spot { position: absolute; inset: 0; z-index: 0; pointer-events: none; opacity: 0; transition: opacity .35s; background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 24%, transparent), transparent 62%); }
.visual > .spot, .os > .spot, .pers-view > .spot { mix-blend-mode: screen; } .os > .spot { mix-blend-mode: normal; background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 12%, transparent), transparent 62%); }
.has-spot:hover > .spot { opacity: 1; } .has-spot { position: relative; overflow: hidden; }
.os { transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s, border-color .35s; } .os:hover { transform: translateY(-6px); box-shadow: 0 24px 50px -24px rgba(10,40,30,.35); border-color: color-mix(in srgb, var(--accent) 50%, #e3ebe7); }
.mini-v { transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .35s; } .mini:hover .mini-v { transform: translateY(-6px) rotate(-.4deg); box-shadow: 0 24px 40px -24px rgba(10,40,30,.35); }
.visual.reveal { transform: translateY(46px) scale(.965); transition-duration: 1.1s; } .visual.reveal.in { transform: none; }
.tr.reveal { transform: translateY(18px); transition-duration: .7s; } .tr.reveal.in { transform: none; }

.orbit { position: absolute; inset: 0; z-index: 0; display: grid; place-items: center; pointer-events: none; overflow: hidden; -webkit-mask: radial-gradient(ellipse 50% 46% at 50% 50%, transparent 66%, #000 100%); mask: radial-gradient(ellipse 50% 46% at 50% 50%, transparent 66%, #000 100%); }
.ring { position: absolute; width: var(--d); height: var(--d); border: 1px dashed rgba(220,255,240,.16); border-radius: 50%; animation: spin var(--t) linear infinite; }
.ring.r1 { --d: min(96vw, 1240px); --t: 70s; } .ring.r2 { --d: min(132vw, 1700px); --t: 110s; animation-direction: reverse; } .ring.r3 { --d: min(160vw, 1500px); --t: 160s; border-color: rgba(220,255,240,.08); }
@keyframes spin { to { transform: rotate(360deg); } }
.sat { position: absolute; left: 50%; top: 50%; width: 0; height: 0; transform: rotate(var(--a)) translateX(calc(var(--d) / 2)) rotate(calc(var(--a) * -1)); }
.badge { position: absolute; left: -26px; top: -26px; display: grid; place-items: center; width: 52px; height: 52px; font-size: 26px; color: #dcefe7; background: rgba(12,28,23,.82); border: 1px solid var(--dline); border-radius: 16px; box-shadow: 0 10px 30px rgba(0,0,0,.4); animation: spin var(--t) linear infinite reverse; }
.ring.r2 .badge { animation-direction: normal; }
.scene-word, .scene > p { position: relative; z-index: 2; } .scene > p { position: absolute; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: clamp(56px, 8vw, 110px); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.stat { padding: clamp(22px, 3vw, 44px) clamp(10px, 2vw, 28px); border-left: 1px solid var(--rule); } .stat:first-child { border-left: 0; }
.stat b { display: block; font-family: var(--serif); font-size: clamp(48px, 6.4vw, 96px); font-weight: 650; line-height: 1; letter-spacing: -.05em; font-variant-numeric: tabular-nums; } .stat span { display: block; margin-top: 10px; color: var(--muted); font-size: 15px; line-height: 1.4; max-width: 220px; }
.marq.rev { margin-top: 14px; } .marq.rev .marq-track { animation-direction: reverse; animation-duration: 90s; }
@media (hover: hover) { .marq:hover .marq-track { animation-play-state: paused; } }

.firstrun { margin-top: clamp(30px, 4vw, 56px); padding: clamp(22px, 3vw, 40px); background: var(--card); border: 1px solid var(--rule); border-radius: 26px; } .firstrun > h3 { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 34px); font-weight: 600; letter-spacing: -.03em; }
.fr3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 3vw, 40px); margin-top: 22px; } .fr3 b { display: block; margin-bottom: 8px; font-size: 17px; font-weight: 600; } .fr3 p { color: #56665f; font-size: 15px; line-height: 1.55; } .fr3 code { padding: 1px 6px; background: #eef3f0; border-radius: 6px; font-size: 13px; }
.cmd { display: flex; min-width: 0; max-width: 100%; align-items: center; gap: 10px; margin-top: 12px; padding: 10px 10px 10px 14px; color: #e6f2ed; background: var(--dark); border-radius: 12px; } .cmd code { flex: 1; min-width: 0; overflow-x: auto; padding: 0; color: inherit; background: none; font-size: 13px; white-space: nowrap; }
.copy { flex: 0 0 auto; padding: 6px 12px; color: #fff; background: rgba(255,255,255,.14); border-radius: 8px; font-size: 13px; font-weight: 500; transition: background .2s; } .copy:hover { background: rgba(255,255,255,.26); } .copy.done { background: #2f9e5d; }

/* ---------- khối kết, có nội dung thật ---------- */
.cta-sub { max-width: 560px; color: #a9bcb4; font-size: clamp(17px, 1.6vw, 21px); line-height: 1.45; }
.cta-cmd { width: min(640px, 100%); min-width: 0; margin-top: 0; padding: 14px 12px 14px 18px; background: rgba(0,0,0,.35); border: 1px solid var(--dline); text-align: left; } .cta-cmd code { font-size: clamp(13px, 1.4vw, 16px); } .cta-cmd code::before { content: '$ '; color: var(--accent); }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 12px 28px; }
.cta-trust { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px 22px; margin-top: 8px; color: #93a29c; font-size: 14px; }
.cta-trust li { display: inline-flex; align-items: center; gap: 8px; } .cta-trust li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.cta-glow { position: absolute; inset: 0; z-index: -1; background: radial-gradient(55% 80% at 50% 100%, color-mix(in srgb, var(--accent) 26%, transparent), transparent 70%), radial-gradient(rgba(220,255,240,.22) 1px, transparent 1.4px) 0 0 / 14px 14px; -webkit-mask: linear-gradient(transparent, #000 80%); mask: linear-gradient(transparent, #000 80%); }

.quick { margin-top: clamp(30px, 4vw, 56px); padding: clamp(22px, 3vw, 40px); background: var(--dark); color: #e6f2ed; border-radius: 26px; } .quick > h3 { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 34px); font-weight: 600; letter-spacing: -.03em; color: #ffffff; } .quick > p { margin-top: 8px; color: #a9bcb4; font-size: 15px; } .quick .cmd { background: #07110e; border: 1px solid var(--dline); } .quick .cmd code::before { content: '$ '; color: var(--accent); } #cmd-q2::before { content: 'PS> '; } .quick .quick-note a { text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 1000px) { .stats { grid-template-columns: repeat(2, 1fr); } .stat:nth-child(3) { border-left: 0; } .stat:nth-child(n+3) { border-top: 1px solid var(--rule); } .fr3 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 760px) {
  .win { --tilt: 7deg; }
  .oc { padding: 7px 12px 7px 9px; font-size: 13px; } .oc .pi { font-size: 16px; }
  .oc1 { left: -1%; top: -62px; } .oc4 { right: -1%; top: -56px; } .oc2, .oc3, .oc5, .oc6 { display: none; }
  .badge { width: 40px; height: 40px; left: -20px; top: -20px; font-size: 20px; border-radius: 12px; }
  .ring.r3 { display: none; }
  .stat b { font-size: clamp(44px, 14vw, 64px); }
  .hero { padding-top: clamp(40px, 12vw, 80px); }
}
@media (max-width: 760px), (pointer: coarse) { .spot { display: none; } }
@supports (content-visibility: auto) { .table-sec, .faq, .dl, .footer { content-visibility: auto; contain-intrinsic-size: auto 900px; } }
@media (prefers-reduced-motion: reduce) { .ring, .badge { animation: none; } .js .split .w > span { transform: none; transition: none; } .progress { display: none; } .win { --p: 1; } }

.cta-title { background: none; -webkit-background-clip: border-box; background-clip: border-box; color: #fff; }
.cta-title .w > span { background: linear-gradient(180deg, #ffffff 30%, #a7f3d4); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- câu chuyện cuộn: hình bên phải dính, chữ bên trái đổi bước ---------- */
.story { display: grid; grid-template-columns: minmax(300px, .86fr) 1.14fr; gap: clamp(28px, 5vw, 84px); align-items: start; margin-top: clamp(40px, 6vw, 90px); }
.story-steps { order: 1; }
.story-visuals { position: sticky; top: 96px; order: 2; height: min(680px, calc(100vh - 132px)); }
.step { display: grid; align-content: center; justify-items: start; gap: 20px; min-height: 80vh; padding: 28px 0; opacity: .28; transition: opacity .6s cubic-bezier(.2,.8,.2,1); }
.step.on { opacity: 1; }
.step-n { display: flex; align-items: center; gap: 14px; color: var(--faint); font: 13px var(--mono); letter-spacing: .12em; }
.step-n .bar { position: relative; display: block; width: 120px; height: 2px; overflow: hidden; background: var(--rule); border-radius: 2px; } .step-n .bar b { position: absolute; inset: 0; background: var(--ink); transform-origin: 0 50%; transform: scaleX(var(--sp, 0)); }
.step h3 { font-family: var(--serif); font-size: clamp(32px, 3.6vw, 54px); font-weight: 650; line-height: 1.04; letter-spacing: -.04em; }
.step p { max-width: 560px; color: #4f5f58; font-size: clamp(16px, 1.4vw, 19px); line-height: 1.55; }
.story-visuals .visual { position: absolute; inset: 0; min-height: 0; opacity: 0; transform: translateY(36px) scale(.965); pointer-events: none; transition: opacity .7s cubic-bezier(.2,.8,.2,1), transform .9s cubic-bezier(.2,.8,.2,1); }
.story-visuals .visual.active { opacity: 1; transform: none; pointer-events: auto; }
@media (max-width: 1000px) {
  .story { grid-template-columns: 1fr; gap: 0; } .story-visuals { display: none; }
  .step { min-height: 0; opacity: 1; padding: 44px 0 0; } .step .visual { position: relative; inset: auto; width: 100%; min-height: 380px; margin-top: 22px; opacity: 1; transform: none; pointer-events: auto; }
}

/* ---------- tuyên ngôn: chữ sáng dần theo cuộn ---------- */
.statement { margin-top: clamp(80px, 12vw, 180px); }
.stmt { max-width: 1280px; font-family: var(--serif); font-size: clamp(30px, 5.2vw, 78px); font-weight: 650; line-height: 1.1; letter-spacing: -.038em; } .stmt .sw { display: inline-block; opacity: .16; will-change: opacity; }
.js-off .stmt .sw, .no-js .stmt .sw { opacity: 1; }

/* ---------- sơ đồ trung tâm: mô hình vào, công cụ ra ---------- */
.hub-stage { position: relative; width: 100%; max-width: 1240px; margin-inline: auto; container-type: inline-size; isolation: isolate; overflow: hidden; aspect-ratio: 1000 / 560; margin-top: clamp(40px, 6vw, 80px); color: #e6f2ed; background: radial-gradient(55% 70% at 50% 50%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 72%), var(--dark); border-radius: 32px; }
.hub-stage::before { content: ''; position: absolute; inset: 0; z-index: -1; opacity: .09; background-image: var(--grain); mix-blend-mode: screen; }
.hub-stage::after { content: ''; position: absolute; inset: 0; z-index: -1; opacity: .35; background: radial-gradient(rgba(220,255,240,.5) 1px, transparent 1.4px) 0 0 / 14px 14px; -webkit-mask: radial-gradient(60% 70% at 50% 50%, #000, transparent); mask: radial-gradient(60% 70% at 50% 50%, #000, transparent); }
.hub-lines { position: absolute; inset: 0; width: 100%; height: 100%; }
.hub-lines path { fill: none; stroke: rgba(220,255,240,.26); stroke-width: 1.2; stroke-dasharray: 3 7; vector-effect: non-scaling-stroke; animation: dash 1.8s linear infinite; }
.hub-lines circle { fill: var(--accent); filter: drop-shadow(0 0 6px var(--accent)); }
.hub-core { position: absolute; left: 50%; top: 50%; display: grid; place-items: center; width: clamp(76px, 12cqw, 150px); height: clamp(76px, 12cqw, 150px); transform: translate(-50%, -50%); background: var(--dark2); border: 1px solid var(--accent); border-radius: 50%; box-shadow: 0 0 60px color-mix(in srgb, var(--accent) 40%, transparent); }
.hub-core img { width: 46%; height: 46%; } .halo { position: absolute; inset: 0; border: 1px solid var(--accent); border-radius: 50%; opacity: 0; animation: halo 3.4s ease-out infinite; } .halo.h2 { animation-delay: 1.7s; }
@keyframes halo { from { transform: scale(1); opacity: .65; } to { transform: scale(2.3); opacity: 0; } }
.hn { position: absolute; display: grid; place-items: center; width: clamp(32px, 5.2cqw, 66px); height: clamp(32px, 5.2cqw, 66px); transform: translate(-50%, -50%); color: #dcefe7; background: rgba(14,32,26,.9); border: 1px solid var(--dline); border-radius: 28%; box-shadow: 0 12px 30px rgba(0,0,0,.4); transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .35s; }
.hn:hover { transform: translate(-50%, -50%) scale(1.12); border-color: var(--accent); }
.hn .pi, .hn svg { width: clamp(16px, 2.6cqw, 32px); height: clamp(16px, 2.6cqw, 32px); font-size: clamp(16px, 2.6cqw, 32px); }
.hn small { position: absolute; top: 100%; z-index: 2; margin-top: .6cqw; color: #93a29c; font-size: clamp(10px, 1.35cqw, 15px); letter-spacing: -.01em; white-space: nowrap; }
@media (max-width: 640px) { .hub-stage { aspect-ratio: 1000 / 840; border-radius: 22px; } .hn small { display: none; } }

/* ---------- dải chữ khổng lồ chạy theo cuộn ---------- */
.kinetic { margin-top: clamp(80px, 12vw, 180px); padding: 10px 0; overflow: hidden; user-select: none; }
.kin-row { display: flex; align-items: center; gap: .32em; width: max-content; font-family: var(--serif); font-size: clamp(76px, 15.5vw, 250px); font-weight: 650; letter-spacing: -.05em; line-height: 1.04; white-space: nowrap; color: var(--ink); will-change: transform; }
.kin-row span:nth-child(4n+3) { color: var(--bg); -webkit-text-stroke: 3px var(--ink); paint-order: stroke fill; }
.kin-row i { flex: none; width: .5em; height: .5em; background: url(assets/voidd-mark.svg) center / contain no-repeat; }
.kin-row.alt { color: color-mix(in srgb, var(--ink) 88%, var(--accent)); }

/* ---------- hero: đèn rọi + vệt sáng trên cửa sổ ---------- */
.hero-glow { position: absolute; inset: 0; z-index: 0; pointer-events: none; background: radial-gradient(620px circle at var(--hx, 50%) var(--hy, 28%), color-mix(in srgb, var(--accent) 17%, transparent), transparent 62%); }
.win { overflow: hidden; }
.win::before { content: ''; position: absolute; inset: 0; z-index: 4; pointer-events: none; border-radius: inherit; background: linear-gradient(112deg, transparent 38%, rgba(220,255,240,.08) 50%, transparent 62%); transform: translateX(-120%); animation: shine 9s ease-in-out 2.2s infinite; }
@keyframes shine { 0%, 62% { transform: translateX(-120%); } 100% { transform: translateX(120%); } }

/* ---------- chân trang: chữ Voidd bằng ma trận chấm ---------- */
.dotmark { margin-top: clamp(30px, 5vw, 70px); } .dotmark canvas { display: block; width: 100%; height: clamp(110px, 25vw, 380px); }

/* ---------- thẻ nhỏ cuộn ngang trên điện thoại ---------- */
@media (max-width: 760px) {
  .cards4 { display: flex; gap: 14px; margin-inline: calc(var(--pad) * -1); padding: 4px var(--pad) 18px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; -webkit-overflow-scrolling: touch; } .cards4::-webkit-scrollbar { display: none; }
  .mini { flex: 0 0 76%; scroll-snap-align: center; }
  .kin-row { font-size: clamp(64px, 22vw, 120px); }
}
@media (prefers-reduced-motion: reduce) { .win::before, .halo, .hub-lines path { animation: none; } .stmt .sw { opacity: 1; } }
/* Điện thoại: biểu tượng trôi mờ đi để không tranh với dòng chữ lớn */
@media (max-width: 700px) { .badge { opacity: .5; transform-origin: center; } .ring.r1 { --d: 150vw; } .ring.r2 { --d: 190vw; } }

@media (max-width: 640px) { .cmd code, .cta-cmd code { white-space: normal; overflow-wrap: anywhere; overflow-x: visible; } .cmd .copy { align-self: flex-start; } }