/* Cùng bộ màu với app (client/public/control/control.css): hồng là đang phát, xanh ngọc là nút chính */
:root {
  color-scheme: dark;
  --base: #0a0e16; --panel: #121926; --raised: #1b2433; --hover: #222c3d;
  --line: #263142; --line-strong: #3a4659;
  --text: #eef3f8; --muted: #97a4b6;
  --air: #fe2c55; --air-soft: #ff7d96; --cue: #25f4ee; --ok: #3ddc97; --wait: #f5b84b;
  --font: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--base); color: var(--text); font: 400 16px/1.6 var(--font); font-variant-numeric: tabular-nums; overflow-x: hidden; }
img { max-width: 100%; height: auto; display: block; } /* thẻ img có height="640" sẵn: để CSS giữ đúng tỉ lệ 9:16 */
a { color: inherit; }
p { margin: 0; }
h1, h2, h3 { margin: 0; text-wrap: balance; }
:focus-visible { outline: 2px solid var(--cue); outline-offset: 3px; }
.wrap { width: min(1200px, 100% - 32px); margin-inline: auto; }
section { padding-top: 140px; }
h2 { font-size: clamp(32px, 4.6vw, 56px); font-weight: 800; line-height: 1.05; letter-spacing: -.04em; }
.sub { color: var(--muted); font-size: 18px; margin-top: 12px; }
.center { text-align: center; }

/* hiện dần khi cuộn tới */
.rv { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.rv.in { opacity: 1; transform: none; }

.btn { display: inline-flex; align-items: center; min-height: 48px; padding: 0 22px; border-radius: 12px; font: 600 15px var(--font); text-decoration: none; border: 1px solid var(--line-strong); color: var(--text); background: var(--raised); transition: background .15s, transform .15s; }
.btn:hover { background: var(--hover); transform: translateY(-2px); }
.btn.go { background: var(--cue); border-color: var(--cue); color: #04201f; box-shadow: 0 0 0 0 rgb(37 244 238 / .5); }
.btn.go:hover { background: #6ff8f4; box-shadow: 0 10px 30px -8px rgb(37 244 238 / .6); }

/* ---------- thanh trên ---------- */
.top { position: sticky; top: 0; z-index: 20; background: rgb(10 14 22 / .75); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; text-decoration: none; }
.brand img { width: 32px; }
.top nav { display: flex; gap: 24px; margin-left: auto; align-self: stretch; font-size: 14px; color: var(--muted); }
.top nav a { position: relative; display: flex; align-items: center; text-decoration: none; transition: color .15s; }
.top nav a:hover, .top nav a[aria-current] { color: var(--text); }
.top nav a::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; border-radius: 2px; background: var(--cue); box-shadow: 0 0 10px var(--cue); transform: scaleX(0); transition: transform .25s; }
.top nav a[aria-current]::after { transform: none; }
.top .btn { min-height: 40px; padding: 0 16px; font-size: 14px; }
.top .btn[aria-current] { box-shadow: 0 0 0 3px rgb(37 244 238 / .25); }
.menu { display: none; flex: none; width: 40px; height: 40px; padding: 0; border-radius: 10px; border: 1px solid var(--line-strong); background: var(--raised); cursor: pointer; place-content: center; gap: 4px; }
.menu i { display: block; width: 16px; height: 2px; border-radius: 2px; background: var(--text); transition: transform .25s, opacity .2s; }
.top.open .menu i:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.top.open .menu i:nth-child(2) { opacity: 0; }
.top.open .menu i:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- đầu trang con ---------- */
.page { padding-top: 88px; }
h1.h { font-size: clamp(38px, 5.6vw, 68px); font-weight: 800; line-height: 1.04; letter-spacing: -.045em; }
section.more { padding-top: 120px; }
a.tile { text-decoration: none; }
.tile .more-link { margin-top: 18px; font-size: 14px; font-weight: 600; color: var(--cue); }
.tile .more-link::after { content: ' →'; display: inline-block; transition: transform .25s; }
a.tile:hover { border-color: var(--cue); }
a.tile:hover .more-link::after { transform: translateX(6px); }
.fan { display: flex; height: 120px; }
.fan img { width: 76px; height: 120px; object-fit: cover; border-radius: 12px; border: 2px solid var(--panel); margin-right: -22px; transform: rotate(calc(var(--k) * 4deg - 8deg)); transition: transform .35s cubic-bezier(.2, .7, .2, 1), margin .35s; }
a.tile:hover .fan img { transform: rotate(calc(var(--k) * 7deg - 14deg)) translateY(-6px); margin-right: -12px; }
.chips { display: grid; gap: 8px; }
.chips span { display: flex; justify-content: space-between; padding: 8px 12px; border-radius: 10px; background: var(--base); font-size: 13px; }
.chips .st { min-width: 0; }
.qmark { font-size: 72px; font-weight: 800; line-height: 1; color: var(--line-strong); transition: color .3s, transform .3s; }
a.tile:hover .qmark { color: var(--cue); transform: rotate(-8deg); }

/* ---------- toàn bộ game ---------- */
.games { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; margin-top: 40px; }
.games .card { width: auto; }

/* ---------- bảng giá: cầu thang 5 gói, ô vuông là số profile ---------- */
@property --a { syntax: '<angle>'; inherits: false; initial-value: 0deg; }
.plans { display: grid; grid-template-columns: repeat(var(--n, 5), minmax(0, 1fr)); gap: 14px; align-items: end; margin-top: 64px; }
.plan { position: relative; padding: 24px 20px 22px; border-radius: 22px; background: var(--panel); border: 1px solid var(--line); padding-top: calc(24px + var(--i) * 18px); opacity: 0; transform: translateY(40px); transition: opacity .6s ease, transform .6s cubic-bezier(.2, .7, .2, 1), border-color .3s; transition-delay: calc(var(--i) * 90ms); }
.plans.in .plan { opacity: 1; transform: none; }
.plans.in .plan:hover { transform: translateY(-8px); transition-delay: 0s; border-color: var(--line-strong); }
.plan.hot { border: 1px solid transparent; background: linear-gradient(var(--raised), var(--raised)) padding-box, conic-gradient(from var(--a), var(--line-strong), var(--cue), var(--line-strong) 40%, var(--air-soft) 70%, var(--line-strong)) border-box; animation: edge 6s linear infinite; }
@keyframes edge { to { --a: 1turn; } }
.plan .pick { position: absolute; top: -12px; left: 20px; padding: 2px 10px; border-radius: 999px; background: var(--cue); color: #04201f; font-size: 12px; font-weight: 700; }
.plan h3 { font-size: 15px; font-weight: 600; color: var(--muted); letter-spacing: .02em; }
.plan.hot h3 { color: var(--cue); }
.price { display: flex; align-items: baseline; gap: 2px; margin-top: 8px; font-size: clamp(26px, 2.4vw, 34px); font-weight: 800; letter-spacing: -.04em; line-height: 1.1; }
.price small { font-size: 16px; font-weight: 600; color: var(--muted); letter-spacing: 0; }
.per { color: var(--muted); font-size: 14px; }
.cells { display: grid; grid-template-columns: repeat(10, 1fr); gap: 4px; margin-top: 22px; }
.cells i { aspect-ratio: 1; border-radius: 3px; background: var(--base); border: 1px solid var(--line); transition: background .3s, border-color .3s; }
.plans.in .cells i.on { background: var(--cue); border-color: var(--cue); transition-delay: calc(var(--i) * 90ms + var(--k) * 25ms + .3s); }
.plans.in .plan.inf .cells i.on { background: linear-gradient(120deg, var(--cue), var(--air-soft), var(--cue)); background-size: 300% 100%; border-color: transparent; animation: shine 3s linear infinite; animation-delay: calc(var(--k) * -80ms); }
@keyframes shine { to { background-position: 300% 0; } }
.prof { margin-top: 12px; font-size: 14px; }
.prof b { font-size: 18px; }
.note { margin-top: 4px; font-size: 13px; color: var(--ok); }
.buy { list-style: none; padding: 0; margin: 48px auto 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 18px; font-size: 15px; color: var(--muted); }
.buy li { display: flex; align-items: center; gap: 10px; }
.buy li + li::before { content: '→'; color: var(--line-strong); margin-right: 8px; }
.buy b { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--cue); color: var(--cue); font-size: 13px; }
.page .end { margin-top: 0; }

/* ---------- 1. hero: chữ chạy vào, điện thoại tự nhận quà ---------- */
.hero { position: relative; padding-top: 64px; overflow-x: clip; }
.hero::before { content: ''; position: absolute; inset: 0 0 -160px; z-index: -1; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(ellipse 70% 60% at 70% 30%, #000 10%, transparent 75%); opacity: .5; animation: grid 20s linear infinite; }
@keyframes grid { to { background-position: 56px 56px; } }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 64px; align-items: center; }
.onair { display: inline-flex; align-items: center; gap: 8px; height: 32px; padding: 0 12px 0 10px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); font-size: 13px; color: var(--muted); }
.onair i { width: 8px; height: 8px; border-radius: 50%; background: var(--air); animation: ping 1.6s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgb(254 44 85 / .7); } 80%, 100% { box-shadow: 0 0 0 9px rgb(254 44 85 / 0); } }
.hero h1 { font-size: clamp(46px, 7vw, 92px); font-weight: 800; line-height: .98; letter-spacing: -.055em; margin: 22px 0 22px; }
.hero h1 span { display: inline-block; opacity: 0; transform: translateY(.5em) rotate(4deg); animation: word .7s cubic-bezier(.2, .7, .2, 1) forwards; }
.hero h1 .hot { color: var(--cue); }
@keyframes word { to { opacity: 1; transform: none; } }
.hero .sub { font-size: 20px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.demo { position: relative; }
.demo::before { content: ''; position: absolute; inset: 6% -20% 18%; z-index: -1; background: radial-gradient(closest-side, rgb(37 244 238 / .25), transparent), radial-gradient(closest-side at 30% 70%, rgb(254 44 85 / .22), transparent); filter: blur(30px); animation: glow 6s ease-in-out infinite alternate; }
@keyframes glow { to { transform: rotate(25deg) scale(1.1); } }
.phone { position: relative; aspect-ratio: 9/16; border-radius: 36px; overflow: hidden; background: #000; border: 1px solid var(--line-strong); box-shadow: 0 0 0 8px var(--panel), 0 0 0 9px var(--line), 0 40px 80px -30px #000; animation: float 6s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px); } }
.phone > img { width: 100%; height: 100%; object-fit: cover; }
.phone .live { position: absolute; top: 14px; left: 14px; padding: 2px 8px; border-radius: 6px; background: var(--air); font-size: 11px; font-weight: 700; }
.phone .eye { position: absolute; top: 14px; right: 14px; padding: 2px 8px; border-radius: 6px; background: rgb(10 14 22 / .6); font-size: 11px; font-weight: 600; }
.chat { position: absolute; left: 12px; right: 84px; bottom: 14px; display: flex; flex-direction: column; gap: 5px; font-size: 12.5px; line-height: 1.35; }
.chat div { background: rgb(10 14 22 / .62); backdrop-filter: blur(6px); padding: 5px 10px; border-radius: 12px; width: fit-content; max-width: 100%; animation: in .3s cubic-bezier(.2, .7, .2, 1); }
.chat b { color: var(--cue); font-weight: 600; }
.chat .gift { background: rgb(254 44 85 / .85); }
.chat .gift b { color: #fff; }
@keyframes in { from { opacity: 0; transform: translateX(-16px) scale(.9); } }
.say { position: absolute; left: 12px; right: 12px; top: 46px; padding: 10px 12px; border-radius: 14px; background: rgb(18 25 38 / .9); backdrop-filter: blur(8px); border: 1px solid var(--line-strong); font-size: 13px; font-weight: 600; display: flex; gap: 10px; align-items: center; opacity: 0; transform: translateY(-8px) scale(.96); transition: .3s; }
.say.on { opacity: 1; transform: none; }
.wave { display: flex; gap: 2px; align-items: center; height: 16px; }
.wave i { width: 3px; height: 14px; border-radius: 2px; background: var(--cue); animation: wave .5s ease-in-out infinite alternate; }
.wave i:nth-child(2) { animation-delay: -.2s; } .wave i:nth-child(3) { animation-delay: -.35s; } .wave i:nth-child(4) { animation-delay: -.1s; }
@keyframes wave { from { transform: scaleY(.3); } }
.fx { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.fx i { position: absolute; font-style: normal; font-size: 26px; animation: fall 1.8s ease-in forwards; }
.fx i.boom { animation: boom 1.1s ease-out forwards; font-size: 20px; }
@keyframes fall { from { transform: translateY(-40px) rotate(0); } to { transform: translateY(680px) rotate(240deg); opacity: .7; } }
@keyframes boom { from { transform: translate(0, 0) scale(.4); } to { transform: translate(var(--dx), var(--dy)) scale(1); opacity: 0; } }
.gifts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 28px; padding: 8px; border-radius: 16px; background: var(--panel); border: 1px solid var(--line); }
.gifts button { font: 600 14px/1.3 var(--font); padding: 10px 6px; border: 0; background: transparent; color: var(--text); border-radius: 10px; cursor: pointer; transition: background .15s, transform .1s; }
.gifts button small { display: block; font-weight: 400; font-size: 12px; color: var(--muted); }
.gifts button:hover { background: var(--raised); }
.gifts button:active, .gifts button.tap { transform: scale(.93); background: var(--hover); }

/* ---------- 2. đường đi của quà: dây nối có chấm sáng chạy ---------- */
.path { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 96px; }
.path::before { content: ''; position: absolute; left: 12.5%; right: 12.5%; top: 27px; height: 2px; background: var(--line); }
.path::after { content: ''; position: absolute; top: 22px; left: 12.5%; width: 12px; height: 12px; border-radius: 50%; background: var(--cue); box-shadow: 0 0 16px 4px rgb(37 244 238 / .6); animation: run 3.2s cubic-bezier(.6, 0, .4, 1) infinite; }
@keyframes run { 0% { left: 12.5%; opacity: 0; } 10% { opacity: 1; } 90% { opacity: 1; } 100% { left: calc(87.5% - 12px); opacity: 0; } }
.node { position: relative; text-align: center; font-weight: 600; font-size: 15px; }
.node span { display: grid; place-items: center; width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 18px; background: var(--panel); border: 1px solid var(--line-strong); font-size: 24px; position: relative; z-index: 1; transition: .3s; }
.node.lit span { border-color: var(--cue); box-shadow: 0 0 24px -4px var(--cue); transform: scale(1.08); }

/* ---------- 3. game: hai băng chuyền chạy ngược chiều ---------- */
.marquee { margin-top: 56px; padding-block: 10px; overflow: hidden; display: grid; gap: 18px; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.track { display: flex; gap: 18px; width: max-content; animation: slide 70s linear infinite; }
.track.rev { animation-direction: reverse; }
.marquee:hover .track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(calc(-50% - 9px)); } }
.card { position: relative; width: 240px; flex: none; border-radius: 18px; overflow: hidden; border: 1px solid var(--line); background: var(--panel); transition: transform .3s, border-color .3s; }
.card:hover { transform: translateY(-6px) scale(1.03); border-color: var(--cue); }
.card img { width: 100%; aspect-ratio: 9/16; object-fit: cover; }
.card b { position: absolute; inset: auto 0 0; padding: 48px 14px 14px; font-size: 16px; font-weight: 600; background: linear-gradient(transparent, rgb(10 14 22 / .95)); }

/* ---------- 4. tính năng: bento, mỗi ô tự chạy ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-top: 56px; }
.tile { position: relative; padding: 28px; border-radius: 22px; background: var(--panel); border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; min-height: 260px; transition: border-color .3s; }
.tile:hover { border-color: var(--line-strong); }
.tile::after { content: ''; position: absolute; inset: 0; background: radial-gradient(400px circle at var(--mx, 50%) var(--my, 0%), rgb(37 244 238 / .08), transparent 40%); opacity: 0; transition: opacity .3s; pointer-events: none; }
.tile:hover::after { opacity: 1; }
.tile h3 { font-size: 22px; font-weight: 700; letter-spacing: -.02em; }
.tile p { color: var(--muted); font-size: 15px; margin-top: 4px; }
.tile .art { margin-top: auto; padding-top: 24px; }
.t1 { grid-column: span 4; } .t2 { grid-column: span 2; } .t3, .t4, .t5 { grid-column: span 2; }
.w2 { grid-column: span 2; } .w3 { grid-column: span 3; } .w4 { grid-column: span 4; }
.group { display: flex; align-items: center; gap: 16px; font-size: 26px; font-weight: 800; letter-spacing: -.03em; margin-top: 88px; }
.group::after { content: ''; flex: 1; height: 1px; background: linear-gradient(90deg, var(--line-strong), transparent); }
.page .bento .tile { min-height: 300px; }
.page .bento .art { height: 132px; flex: none; margin-top: auto; padding-top: 0; display: flex; flex-direction: column; justify-content: flex-end; }
.page .bento .tile p { min-height: 2.9em; }
.page .bento .bars, .page .bento .spark { flex-direction: row; align-items: center; }
.page .bento .spark { align-items: flex-end; }
.page .bento .swap, .page .bento .frame { flex-direction: row; align-items: flex-end; }
.rules.small { gap: 6px; }
.rules.small div { padding: 9px 12px; font-size: 13px; }
.rules .st { font-size: 12px; }
.group + .bento { margin-top: 18px; }
.mchat { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.mchat div { width: fit-content; padding: 6px 12px; border-radius: 12px; background: var(--base); border: 1px solid var(--line); animation: in .35s cubic-bezier(.2, .7, .2, 1); }
.mchat b { color: var(--cue); font-weight: 600; }
.ticker { font-size: 14px; font-weight: 600; }
.ticker span { display: block; padding: 12px 14px; border-radius: 12px; background: var(--base); border: 1px dashed var(--line-strong); animation: in .4s cubic-bezier(.2, .7, .2, 1); }
.swap { position: relative; height: 132px; }
.swap img { position: absolute; bottom: 0; width: 64px; aspect-ratio: 9/16; object-fit: cover; border-radius: 10px; border: 1px solid var(--line-strong); transition: left .5s, transform .5s; }
.swap img:nth-child(1) { left: 0; transform: rotate(-8deg); } .swap img:nth-child(2) { left: 52px; transform: rotate(0); } .swap img:nth-child(3) { left: 104px; transform: rotate(8deg) translateY(-6px); border-color: var(--cue); }
.frame { display: flex; align-items: end; gap: 14px; }
.frame .ov { width: 62px; aspect-ratio: 9/16; border-radius: 10px; border: 2px solid var(--cue); display: grid; place-items: center; font-size: 9px; color: var(--cue); position: relative; overflow: hidden; }
.frame .ov::after { content: ''; position: absolute; inset: 0; background: linear-gradient(transparent 40%, rgb(37 244 238 / .25) 50%, transparent 60%); animation: scan 2.4s linear infinite; }
@keyframes scan { from { transform: translateY(-100%); } to { transform: translateY(100%); } }
.frame .chips { display: grid; gap: 6px; }
.frame .chips b { padding: 5px 10px; border-radius: 999px; border: 1px solid var(--line-strong); font-size: 12px; font-weight: 600; }
.spark { display: flex; align-items: end; gap: 4px; height: 100px; }
.spark i { flex: 1; border-radius: 3px 3px 0 0; background: linear-gradient(var(--air), rgb(254 44 85 / .2)); transition: height .6s; }
.net { gap: 6px; font-size: 13px; font-weight: 600; }
.net span { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-radius: 12px; background: var(--base); border: 1px solid var(--line); color: var(--muted); transition: .3s; }
.net span::before { content: ''; width: 9px; height: 9px; border-radius: 50%; background: var(--line-strong); transition: .3s; }
.net span.on { color: var(--text); transform: translateX(8px); }
.net .ok.on { border-color: var(--ok); } .net .ok.on::before { background: var(--ok); box-shadow: 0 0 10px var(--ok); }
.net .bad.on { border-color: var(--air); } .net .bad.on::before { background: var(--air); box-shadow: 0 0 10px var(--air); }
.net .wait.on { border-color: var(--wait); } .net .wait.on::before { background: var(--wait); box-shadow: 0 0 10px var(--wait); }
.ver { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 26px; }
.ver span { padding: 4px 12px; border-radius: 10px; background: var(--base); border: 1px solid var(--line); }
.ver .new { border-color: var(--cue); color: var(--cue); }
.ver b { color: var(--muted); animation: nudge 1.2s ease-in-out infinite; }
@keyframes nudge { 50% { transform: translateX(5px); } }
.lic { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; border: 1px solid var(--line); font-size: 13px; font-weight: 500; }
.lic i { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); }
.rules { display: grid; gap: 8px; }
.rules div { display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; padding: 12px 14px; border-radius: 12px; background: var(--base); border: 1px solid var(--line); font-size: 14px; transition: border-color .3s, transform .3s; }
.rules div.on { border-color: var(--cue); transform: translateX(8px); }
.rules span { color: var(--muted); font-size: 13px; }
.bars { display: flex; align-items: center; gap: 4px; height: 80px; }
.bars i { flex: 1; height: 100%; border-radius: 3px; background: linear-gradient(var(--cue), rgb(37 244 238 / .15)); animation: wave .7s ease-in-out infinite alternate; }
.crowd { display: flex; flex-wrap: wrap; gap: 4px; height: 76px; align-content: flex-end; overflow: hidden; }
.crowd i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); animation: pop .4s backwards; }
.crowd i:nth-child(5n) { background: var(--cue); } .crowd i:nth-child(7n) { background: var(--air); }
@keyframes pop { from { transform: scale(0); } }
.big { font-size: 44px; font-weight: 800; letter-spacing: -.04em; line-height: 1; }
.big small { font-size: 15px; font-weight: 500; color: var(--muted); letter-spacing: 0; }
.board { display: grid; gap: 6px; font-size: 14px; }
.board div { display: flex; justify-content: space-between; padding: 9px 12px; border-radius: 10px; background: var(--base); transition: transform .4s; }
.board div:first-child { border: 1px solid var(--wait); color: var(--wait); }

/* ---------- 5. nhiều kênh: màn hình quản lý số nhảy liên tục ---------- */
.multi { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 64px; align-items: center; }
.screen { border-radius: 22px; background: var(--panel); border: 1px solid var(--line); overflow: hidden; box-shadow: 0 40px 80px -40px #000; }
.bar { display: flex; gap: 6px; padding: 14px 16px; border-bottom: 1px solid var(--line); }
.bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-strong); }
.ch { display: grid; grid-template-columns: 40px 1fr auto auto; gap: 14px; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); font-size: 14px; }
.ch:last-child { border: 0; }
.ch img { width: 40px; height: 40px; border-radius: 10px; object-fit: cover; }
.ch small { display: block; color: var(--muted); font-size: 12px; }
.ch .n { min-width: 64px; text-align: right; font-weight: 600; }
.ch .n.bump { animation: bump .4s; }
@keyframes bump { 40% { color: var(--cue); transform: scale(1.12); } }
.st { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--air-soft); min-width: 72px; }
.st::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--air); animation: ping 1.6s infinite; }
.st.off { color: var(--muted); } .st.off::before { background: var(--muted); animation: none; }
.kpis { display: flex; gap: 32px; margin-top: 32px; }
.kpis b { display: block; font-size: 34px; font-weight: 800; letter-spacing: -.03em; }
.kpis span { font-size: 13px; color: var(--muted); }

/* ---------- 6. lên live: đường tiến trình chạy khi cuộn tới ---------- */
.steps { position: relative; list-style: none; padding: 0; margin: 64px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.steps::before, .steps::after { content: ''; position: absolute; top: 0; left: 0; height: 2px; width: 100%; background: var(--line); }
.steps::after { background: var(--cue); box-shadow: 0 0 12px var(--cue); transform: scaleX(0); transform-origin: left; transition: transform 2s cubic-bezier(.6, 0, .2, 1); }
.steps.in::after { transform: scaleX(1); }
.steps li { padding-top: 28px; position: relative; }
.steps li::before { content: ''; position: absolute; top: -7px; left: 0; width: 16px; height: 16px; border-radius: 50%; background: var(--base); border: 2px solid var(--line-strong); transition: .3s; z-index: 1; }
.steps.in li::before { border-color: var(--cue); background: var(--cue); }
.steps.in li:nth-child(2)::before { transition-delay: .5s; } .steps.in li:nth-child(3)::before { transition-delay: 1s; } .steps.in li:nth-child(4)::before { transition-delay: 1.5s; }
.steps .ic { font-size: 30px; display: block; margin-bottom: 10px; }
.steps b { font-size: 19px; font-weight: 700; }
.steps p { color: var(--muted); font-size: 14px; margin-top: 2px; }

/* ---------- 7. hỏi đáp ---------- */
.faq { max-width: 760px; margin: 48px auto 0; }
details { border-radius: 16px; background: var(--panel); border: 1px solid var(--line); margin-bottom: 10px; transition: border-color .2s; }
details[open] { border-color: var(--line-strong); }
summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 16px; padding: 18px 22px; font-weight: 600; font-size: 16px; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; color: var(--cue); font-size: 22px; line-height: 1; transition: transform .25s; }
details[open] summary::after { transform: rotate(45deg); }
details p { color: var(--muted); padding: 0 22px 18px; animation: in .3s; }

/* ---------- 8. cuối trang: logo có vòng sáng xoay ---------- */
.end { margin-top: 140px; padding: 88px 24px; border-radius: 32px; text-align: center; background: var(--panel); border: 1px solid var(--line); position: relative; overflow: hidden; }
.end::before { content: ''; position: absolute; inset: -50%; background: conic-gradient(from 0deg, transparent, rgb(37 244 238 / .14), transparent 30%, rgb(254 44 85 / .14), transparent 60%); animation: spin 14s linear infinite; }
@keyframes spin { to { transform: rotate(1turn); } }
.end > * { position: relative; }
.logo-ring { width: 140px; height: 140px; margin: 0 auto 28px; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(var(--cue), var(--air), var(--cue)); animation: spin 6s linear infinite; }
.logo-ring div { width: 132px; height: 132px; border-radius: 50%; background: var(--panel); display: grid; place-items: center; animation: spin 6s linear infinite reverse; }
.logo-ring img { width: 92px; }
.end .cta { justify-content: center; }
/* ---------- sản phẩm: Live Studio đã có, Live Mobile đang làm ---------- */
.products { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 56px; }
.prod { position: relative; padding: 32px; border-radius: 22px; background: var(--panel); border: 1px solid var(--line); overflow: hidden; min-height: 300px; display: flex; flex-direction: column; justify-content: flex-end; }
.prod h3 { font-size: 26px; font-weight: 800; letter-spacing: -.03em; }
.prod p { color: var(--muted); margin-top: 4px; }
.tag { position: absolute; top: 24px; left: 24px; padding: 4px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; border: 1px solid currentColor; }
.tag.ok { color: var(--ok); }
.tag.wait { color: var(--wait); }
.windows { position: absolute; top: 40px; right: 32px; width: 200px; height: 140px; }
.windows i { position: absolute; width: 150px; height: 100px; border-radius: 12px; background: var(--raised); border: 1px solid var(--line-strong); animation: stack 6s ease-in-out infinite; }
.windows i::before { content: ''; position: absolute; top: 10px; left: 10px; width: 8px; height: 8px; border-radius: 50%; background: var(--air); box-shadow: 0 0 8px var(--air); }
.windows i:nth-child(1) { top: 0; left: 0; } .windows i:nth-child(2) { top: 20px; left: 25px; animation-delay: -2s; } .windows i:nth-child(3) { top: 40px; left: 50px; animation-delay: -4s; border-color: var(--cue); }
@keyframes stack { 50% { transform: translate(6px, -6px); } }
.mini-phone { position: absolute; top: 28px; right: 48px; width: 86px; height: 160px; border-radius: 20px; border: 2px dashed var(--line-strong); display: grid; place-items: center; }
.mini-phone i { width: 40px; height: 40px; border-radius: 50%; border: 3px solid var(--line); border-top-color: var(--wait); animation: spin 1.2s linear infinite; }
.prod.soon { background: repeating-linear-gradient(-45deg, var(--panel) 0 14px, rgb(27 36 51 / .55) 14px 28px); background-size: 200% 200%; animation: stripes 12s linear infinite; }
@keyframes stripes { to { background-position: 100% 100%; } }
footer { margin-top: 80px; padding: 28px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

@media (max-width: 980px) {
  section { padding-top: 104px; }
  .hero-grid, .multi { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .demo { max-width: 330px; width: 100%; margin-inline: auto; }
  .bento { grid-template-columns: 1fr 1fr; }
  .t1 { grid-column: span 2; } .t2, .t3, .t4, .t5 { grid-column: span 1; }
  .w4 { grid-column: span 2; } .w2, .w3 { grid-column: span 1; }
  .steps { grid-template-columns: 1fr 1fr; row-gap: 48px; }
  .steps::before, .steps::after { display: none; }
  .steps li { border-top: 2px solid var(--line); transition: border-color .4s; }
  .steps.in li { border-color: var(--cue); }
  .page { padding-top: 64px; }
  section.more { padding-top: 96px; }
  .plans { grid-template-columns: 1fr 1fr; }
  .plan { padding-top: 24px; }
  .plan:last-child:nth-child(odd) { grid-column: span 2; }
  .top .wrap { gap: 10px; }
  .top nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; padding: 8px 16px 16px; background: var(--base); box-shadow: 0 30px 60px -20px #000; border-bottom: 1px solid var(--line); font-size: 16px; }
  .top.open nav { display: flex; animation: in .25s; }
  .top nav a { padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .top nav a::after { left: -16px; right: auto; top: 12px; bottom: 12px; width: 3px; height: auto; transform: scaleY(0); }
  .top .btn { margin-left: auto; }
  .menu { display: grid; }
}
@media (max-width: 600px) {
  .bento, .products { grid-template-columns: 1fr; }
  .t1, .t2, .t3, .t4, .t5, .w2, .w3, .w4 { grid-column: auto; }
  .path { grid-template-columns: 1fr 1fr; row-gap: 28px; }
  .path::before, .path::after { display: none; }
  .card { width: 180px; }
  .ch { grid-template-columns: 36px minmax(0, 1fr) auto auto; gap: 10px; padding-inline: 14px; }
  .ch img { width: 36px; height: 36px; }
  .ch .n { min-width: 0; }
  .st { min-width: 0; }
  .kpis { gap: 20px; }
  .games { grid-template-columns: 1fr 1fr; gap: 12px; }
  .cells { grid-template-columns: repeat(20, 1fr); gap: 3px; }
  .plans { grid-template-columns: 1fr; }
  .plan:last-child:nth-child(odd) { grid-column: auto; }
  .top .btn { padding: 0 12px; }
  .buy { flex-direction: column; align-items: center; }
  .buy li + li::before { display: none; }
}
@media (max-width: 400px) {
  .brand { font-size: 15px; gap: 8px; }
  .brand img { width: 28px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .hero h1 span, .rv, .plan { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- trang chủ: băng game, không khí, con số, so sánh, giá ---------- */
.strip { margin-top: 72px; }
.strip .card { width: 240px; }
.vibes { margin-top: 48px; }
.vibe-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }
.vibe-tabs button { padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--panel); color: var(--muted); font: 600 15px var(--font); cursor: pointer; transition: .2s; }
.vibe-tabs button:hover { color: var(--text); }
.vibe-tabs button[aria-selected="true"] { color: #04201f; background: var(--cue); border-color: var(--cue); }
.vibe-line { text-align: center; color: var(--muted); margin: 28px 0 24px; }
.vibe-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.vibe-cards figure { margin: 0; animation: vibeIn .6s cubic-bezier(.2, .7, .2, 1) backwards; animation-delay: calc(var(--k) * 80ms); }
.vibe-cards img { width: 100%; aspect-ratio: 9/16; object-fit: cover; border-radius: 18px; border: 1px solid var(--line); }
.vibe-cards figcaption { margin-top: 10px; font-weight: 600; font-size: 15px; text-align: center; }
@keyframes vibeIn { from { opacity: 0; transform: translateY(24px) rotate(calc(var(--k) * 2deg - 3deg)); } }
.numbers-band { margin-top: 140px; padding: 64px 0; border-block: 1px solid var(--line); background: linear-gradient(90deg, rgb(37 244 238 / .05), transparent 40%, transparent 60%, rgb(254 44 85 / .05)); }
.numbers-band + section { padding-top: 140px; }
.numbers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.numbers b { display: block; font-size: clamp(44px, 6vw, 72px); font-weight: 800; letter-spacing: -.05em; line-height: 1; }
.numbers div:nth-child(odd) b { color: var(--cue); }
.numbers span { display: block; margin-top: 10px; color: var(--muted); font-size: 15px; }
.versus { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: center; margin-top: 56px; }
.side { padding: 32px; border-radius: 22px; border: 1px solid var(--line); background: var(--panel); }
.side h3 { font-size: 22px; font-weight: 800; margin-bottom: 16px; }
.side ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.side li { display: flex; gap: 10px; align-items: baseline; }
.side.plain { opacity: .7; }
.side.plain li { color: var(--muted); }
.side.plain li::before { content: '–'; color: var(--line-strong); }
.side.dolas { border-color: var(--cue); box-shadow: 0 0 60px -20px rgb(37 244 238 / .5); }
.side.dolas li::before { content: '✓'; color: var(--cue); font-weight: 800; }
.vs { width: 56px; height: 56px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; background: var(--air); box-shadow: 0 0 0 6px var(--base), 0 0 30px rgb(254 44 85 / .6); animation: ping 2s infinite; }
.price-teaser { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 24px; padding: 40px; border-radius: 28px; text-decoration: none; background: radial-gradient(500px 200px at 0% 0%, rgb(37 244 238 / .14), transparent 70%), radial-gradient(500px 200px at 100% 100%, rgb(254 44 85 / .12), transparent 70%), var(--panel); border: 1px solid var(--line); transition: border-color .3s; }
.price-teaser:hover { border-color: var(--cue); }
.price-teaser b { display: block; font-size: clamp(48px, 7vw, 84px); font-weight: 800; letter-spacing: -.05em; line-height: 1.05; }
.pt-label { color: var(--muted); font-size: 16px; }
@media (max-width: 980px) {
  .vibe-cards { grid-template-columns: repeat(2, 1fr); }
  .numbers { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .versus { grid-template-columns: 1fr; }
  .vs { margin: -8px auto; }
}
@media (max-width: 600px) {
  .price-teaser { padding: 28px; }
  .strip .card { width: 170px; }
}