@import url('https://fonts.googleapis.com/css2?family=DM+Sans:opsz,wght@9..40,400;9..40,500;9..40,600;9..40,700&family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Noto+Sans+SC:wght@400;500;600;700;800&display=swap');

/* Heycat live network page — shares the tech homepage's palette and type. */
:root {
  --bg: #05060a;
  --panel: rgba(14, 17, 27, .66);
  --panel-2: rgba(20, 24, 38, .72);
  --line: rgba(255, 255, 255, .08);
  --line-2: rgba(255, 255, 255, .15);
  --ink: #f0f2f7;
  --muted: #a7afc0;
  --dim: #7d869a;
  --blue: #5573ff;
  --blue-2: #8fa2ff;
  --violet: #9b7bff;
  --cyan: #55d6ff;
  --green: #45e3a8;
  --amber: #ffc36b;
  --pink: #ff7bc8;
  --grad: linear-gradient(110deg, #55d6ff 0%, #5573ff 45%, #9b7bff 100%);
  --font: 'DM Sans', 'Noto Sans SC', system-ui, sans-serif;
  --display: 'Space Grotesk', 'Noto Sans SC', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'Space Grotesk', ui-monospace, monospace;
  --ease: cubic-bezier(.2, .8, .2, 1);
  --spring: cubic-bezier(.34, 1.56, .64, 1);
}

* { box-sizing: border-box; }
html { overflow-x: clip; }
body { margin: 0; min-height: 100vh; background: var(--bg); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: clip; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; padding: 0; }
img { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0; }
.wrap { width: min(1240px, 100% - 48px); margin-inline: auto; }

/* ---------- Backdrop ---------- */
#net-canvas { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.veil { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.aurora { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .5; mix-blend-mode: screen; }
.a1 { width: 52vw; height: 52vw; left: -14vw; top: -18vw; background: radial-gradient(circle, rgba(85, 115, 255, .55), transparent 65%); animation: drift-a 22s ease-in-out infinite alternate; }
.a2 { width: 46vw; height: 46vw; right: -16vw; top: 12vh; background: radial-gradient(circle, rgba(155, 123, 255, .45), transparent 65%); animation: drift-b 26s ease-in-out infinite alternate; }
.a3 { width: 40vw; height: 40vw; left: 30vw; bottom: -24vw; background: radial-gradient(circle, rgba(85, 214, 255, .35), transparent 65%); animation: drift-a 30s ease-in-out -8s infinite alternate; }
.scan { position: absolute; inset: 0; background: repeating-linear-gradient(180deg, rgba(255, 255, 255, .018) 0 1px, transparent 1px 4px); mask-image: linear-gradient(180deg, transparent, #000 20%, #000 80%, transparent); }
@keyframes drift-a { to { transform: translate(8vw, 6vh) scale(1.12); } }
@keyframes drift-b { to { transform: translate(-6vw, 10vh) scale(.92); } }

header, main, footer { position: relative; z-index: 1; }
.stats, .stream, .ids { scroll-margin-top: 96px; }

/* ---------- Header ---------- */
.top { position: sticky; top: 0; z-index: 20; backdrop-filter: blur(18px) saturate(140%); -webkit-backdrop-filter: blur(18px) saturate(140%); background: linear-gradient(180deg, rgba(5, 6, 10, .82), rgba(5, 6, 10, .45)); border-bottom: 1px solid var(--line); }
.top-inner { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { transition: transform .6s var(--spring); }
.brand:hover img { transform: rotate(-12deg) scale(1.08); }
.brand-word { font-family: var(--display); font-size: 26px; font-weight: 500; letter-spacing: -.06em; line-height: 1; }
.brand-word .dot { color: var(--blue); }
.brand-cn { font-size: 13px; color: var(--muted); padding: 3px 8px; border: 1px solid var(--line-2); border-radius: 999px; }
.top-nav { display: flex; gap: 6px; margin-left: 8px; }
.top-nav a { position: relative; padding: 8px 14px; border-radius: 999px; font-size: 14.5px; color: var(--muted); transition: color .3s, background .3s; }
.top-nav a:hover { color: var(--ink); background: rgba(255, 255, 255, .05); }
.top-nav a[aria-current] { color: var(--ink); background: rgba(85, 115, 255, .14); box-shadow: inset 0 0 0 1px rgba(143, 162, 255, .3); }
.top-nav a[aria-current]::after { content: ''; position: absolute; left: 50%; bottom: 3px; width: 4px; height: 4px; margin-left: -2px; border-radius: 50%; background: var(--green); box-shadow: 0 0 10px var(--green); animation: blink 1.6s ease-in-out infinite; }
.top-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.lang { white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; height: 38px; padding: 0 12px; border-radius: 999px; border: 1px solid var(--line-2); font-family: var(--mono); font-size: 12.5px; color: var(--muted); transition: border-color .3s, color .3s, transform .3s var(--spring); }
.lang svg { width: 16px; height: 16px; }
.lang:hover { color: var(--ink); border-color: rgba(143, 162, 255, .5); transform: translateY(-1px); }

.btn { position: relative; white-space: nowrap; display: inline-flex; align-items: center; gap: 10px; height: 44px; padding: 0 20px; border-radius: 999px; font-weight: 600; font-size: 15px; overflow: hidden; isolation: isolate; transition: transform .4s var(--spring), box-shadow .4s; }
.btn i { font-style: normal; transition: transform .4s var(--spring); }
.btn:hover { transform: translateY(-2px); }
.btn:hover i { transform: translate(3px, -3px); }
.btn-primary { background: var(--grad); background-size: 200% 100%; color: #fff; box-shadow: 0 10px 30px -10px rgba(85, 115, 255, .7); animation: sheen 6s linear infinite; }
.btn-primary::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(105deg, transparent 30%, rgba(255, 255, 255, .35) 50%, transparent 70%); transform: translateX(-120%); transition: transform .8s var(--ease); }
.btn-primary:hover::after { transform: translateX(120%); }
.btn-ghost { border: 1px solid var(--line-2); color: var(--ink); background: rgba(255, 255, 255, .03); }
.btn-ghost:hover { border-color: rgba(143, 162, 255, .5); background: rgba(85, 115, 255, .08); }
@keyframes sheen { to { background-position: 200% 0; } }

/* ---------- Hero ---------- */
.hero { padding: 72px 0 40px; }
.live-pill { display: inline-flex; align-items: center; gap: 12px; padding: 7px 16px 7px 12px; border-radius: 999px; border: 1px solid rgba(69, 227, 168, .35); background: rgba(69, 227, 168, .07); font-size: 13px; color: var(--muted); animation: rise .9s var(--ease) both; }
.live-pill b { font-family: var(--mono); letter-spacing: .2em; font-size: 11.5px; color: var(--green); }
.live-pill.offline { border-color: rgba(255, 195, 107, .4); background: rgba(255, 195, 107, .07); }
.live-pill.offline b { color: var(--amber); }
.pulse { position: relative; width: 10px; height: 10px; }
.pulse i { position: absolute; inset: 0; border-radius: 50%; background: var(--green); }
.pulse i:last-child { animation: ping 1.8s cubic-bezier(0, 0, .2, 1) infinite; }
.offline .pulse i { background: var(--amber); }
@keyframes ping { 75%, 100% { transform: scale(2.8); opacity: 0; } }
.hero h1 { font-family: var(--display); font-weight: 600; font-size: clamp(40px, 6.2vw, 92px); line-height: 1.06; letter-spacing: -.045em; margin: 28px 0 22px; }
.hero h1 .line { display: block; animation: rise 1s var(--ease) both; }
.hero h1 .line + .line { animation-delay: .12s; }
.grad { background: var(--grad); background-size: 200% 100%; -webkit-background-clip: text; background-clip: text; color: transparent; animation: rise 1s var(--ease) .12s both, sheen 8s linear infinite; }
.lead { max-width: 720px; color: var(--muted); font-size: clamp(16px, 1.4vw, 19px); margin: 0; animation: rise 1s var(--ease) .24s both; }
@keyframes rise { from { opacity: 0; transform: translateY(26px); filter: blur(6px); } to { opacity: 1; transform: none; filter: none; } }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; padding: 18px 0 44px; }
.stat { position: relative; padding: 20px 20px 18px; border-radius: 20px; border: 1px solid var(--line); background: var(--panel); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); overflow: hidden; animation: rise .9s var(--ease) both; transition: transform .5s var(--spring), border-color .4s; }
.stat:nth-child(2) { animation-delay: .05s; } .stat:nth-child(3) { animation-delay: .1s; } .stat:nth-child(4) { animation-delay: .15s; }
.stat:nth-child(5) { animation-delay: .2s; } .stat:nth-child(6) { animation-delay: .25s; } .stat:nth-child(7) { animation-delay: .3s; } .stat:nth-child(8) { animation-delay: .35s; }
.stat::before { content: ''; position: absolute; inset: 0; background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 0%), rgba(85, 115, 255, .18), transparent 60%); opacity: 0; transition: opacity .4s; }
.stat:hover { transform: translateY(-4px); border-color: rgba(143, 162, 255, .35); }
.stat:hover::before { opacity: 1; }
.stat-label { position: relative; display: block; font-size: 13px; color: var(--muted); letter-spacing: .02em; }
.stat strong { position: relative; display: flex; align-items: baseline; gap: 8px; margin: 8px 0 6px; font-family: var(--display); font-weight: 600; font-size: clamp(30px, 3.2vw, 44px); letter-spacing: -.03em; line-height: 1.1; }
.stat strong small { font-size: .5em; color: var(--dim); font-weight: 500; }
.stat-foot { position: relative; display: block; font-size: 12px; color: var(--dim); }
.stat.bump strong b { animation: bump .9s var(--spring); }
@keyframes bump { 30% { transform: translateY(-4px) scale(1.06); color: var(--cyan); text-shadow: 0 0 24px rgba(85, 214, 255, .7); } }
.featured { background: linear-gradient(140deg, rgba(85, 115, 255, .22), rgba(14, 17, 27, .7) 55%); border-color: rgba(143, 162, 255, .3); }
.spark { position: absolute; right: -40px; top: -40px; width: 140px; height: 140px; border-radius: 50%; background: radial-gradient(circle, rgba(69, 227, 168, .35), transparent 65%); animation: breathe 4s ease-in-out infinite; }
@keyframes breathe { 50% { transform: scale(1.25); opacity: .6; } }

/* ---------- Streams ---------- */
.streams { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 18px; padding-bottom: 72px; }
.stream { position: relative; border-radius: 26px; border: 1px solid var(--line); background: linear-gradient(180deg, rgba(18, 22, 35, .78), rgba(10, 12, 20, .78)); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); overflow: hidden; animation: rise 1s var(--ease) .2s both; }
.stream::before { content: ''; position: absolute; inset: 0 0 auto; height: 1px; background: linear-gradient(90deg, transparent, rgba(143, 162, 255, .7), transparent); animation: glide 4.5s linear infinite; }
@keyframes glide { from { transform: translateX(-100%); } to { transform: translateX(100%); } }
.stream-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; padding: 22px 24px 16px; border-bottom: 1px solid var(--line); }
.eyebrow { display: inline-block; font-family: var(--mono); font-size: 11px; letter-spacing: .2em; color: var(--blue-2); }
.stream h2 { font-family: var(--display); font-size: clamp(20px, 2vw, 26px); font-weight: 600; letter-spacing: -.02em; margin-top: 6px; }
.stream-count { flex-shrink: 0; font-size: 12.5px; color: var(--dim); }
.stream-count b { font-family: var(--mono); color: var(--ink); }
.viewport { position: relative; height: 520px; overflow: hidden; mask-image: linear-gradient(180deg, transparent, #000 8%, #000 88%, transparent); -webkit-mask-image: linear-gradient(180deg, transparent, #000 8%, #000 88%, transparent); }
.track { padding: 10px 14px; will-change: transform; }
.track.marquee { animation: marquee var(--duration, 40s) linear infinite; }
.viewport:hover .track.marquee { animation-play-state: paused; }
@keyframes marquee { from { transform: translateY(0); } to { transform: translateY(-50%); } }

.row { display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; align-items: center; gap: 14px; padding: 12px 12px; margin-bottom: 8px; border-radius: 16px; border: 1px solid transparent; background: rgba(255, 255, 255, .025); transition: background .4s, border-color .4s, transform .4s var(--spring); }
.row:hover { background: rgba(85, 115, 255, .08); border-color: rgba(143, 162, 255, .22); transform: translateX(4px); }
.row.fresh { animation: arrive 1.1s var(--spring) both, glow 2.6s ease-out both; }
@keyframes arrive { from { opacity: 0; transform: translateY(-24px) scale(.96); } }
@keyframes glow { 0% { border-color: rgba(69, 227, 168, .8); box-shadow: 0 0 0 1px rgba(69, 227, 168, .4), 0 0 30px -4px rgba(69, 227, 168, .55); background: rgba(69, 227, 168, .1); } 100% { box-shadow: none; } }
.row-icon { position: relative; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 14px; background: rgba(85, 115, 255, .14); color: var(--blue-2); }
.row-icon svg { width: 22px; height: 22px; }
.row-icon.box { background: rgba(255, 195, 107, .14); color: var(--amber); }
.row-icon.hub { background: rgba(155, 123, 255, .16); color: var(--violet); }
.row-icon .gpu { position: absolute; right: -4px; bottom: -4px; padding: 1px 5px; border-radius: 6px; font-family: var(--mono); font-size: 9px; font-weight: 600; letter-spacing: .06em; color: #04130c; background: var(--green); box-shadow: 0 0 12px rgba(69, 227, 168, .6); }
.row-main { min-width: 0; }
.uid { font-family: var(--mono); font-size: 14px; font-weight: 500; letter-spacing: .02em; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.uid .mask { color: var(--blue-2); }
.meta { display: flex; flex-wrap: wrap; gap: 6px 10px; margin-top: 3px; font-size: 12.5px; color: var(--dim); }
.meta span { white-space: nowrap; }
.when { font-family: var(--mono); font-size: 11.5px; color: var(--dim); text-align: right; white-space: nowrap; }

.match { grid-template-columns: minmax(0, 1fr) auto; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 2px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; background: rgba(85, 115, 255, .14); color: var(--blue-2); }
.chip::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; box-shadow: 0 0 8px currentColor; }
.chip.ai-comic { background: rgba(155, 123, 255, .16); color: #c1aeff; }
.chip.compute { background: rgba(85, 115, 255, .16); color: var(--blue-2); }
.chip.global-product { background: rgba(85, 214, 255, .14); color: var(--cyan); }
.chip.social-content { background: rgba(255, 123, 200, .14); color: var(--pink); }
.chip.rewarded-ad { background: rgba(255, 195, 107, .14); color: var(--amber); }
.chip.work { background: rgba(69, 227, 168, .14); color: var(--green); }
.route { display: flex; align-items: center; gap: 10px; margin-top: 8px; min-width: 0; }
.route .uid { font-size: 12.5px; }
.route .who { font-size: 11px; color: var(--dim); margin-right: 4px; font-family: var(--font); }
.beam { position: relative; flex: 1 1 40px; min-width: 28px; max-width: 120px; height: 2px; border-radius: 2px; background: rgba(143, 162, 255, .18); overflow: hidden; }
.beam::after { content: ''; position: absolute; inset: 0; width: 40%; background: linear-gradient(90deg, transparent, var(--cyan), transparent); animation: beam 1.6s linear infinite; }
@keyframes beam { from { transform: translateX(-100%); } to { transform: translateX(260%); } }
.credits { font-family: var(--display); font-size: 17px; font-weight: 600; color: var(--green); text-align: right; white-space: nowrap; }
.credits small { display: block; font-family: var(--mono); font-size: 11px; font-weight: 400; color: var(--dim); margin-top: 2px; }

.empty { display: grid; place-items: center; gap: 10px; height: 100%; padding: 40px 24px; text-align: center; color: var(--muted); }
.empty-orb { width: 64px; height: 64px; border-radius: 50%; background: radial-gradient(circle at 35% 30%, rgba(143, 162, 255, .9), rgba(85, 115, 255, .2) 60%, transparent 70%); box-shadow: 0 0 60px rgba(85, 115, 255, .5); animation: breathe 3s ease-in-out infinite; }
.empty a { color: var(--blue-2); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Unified IDs ---------- */
.ids { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px 40px; padding: 40px 0 72px; align-items: start; }
.ids-copy h2, .cta h2 { font-family: var(--display); font-weight: 600; font-size: clamp(32px, 3.8vw, 54px); letter-spacing: -.035em; line-height: 1.15; margin: 14px 0 16px; }
.ids-copy p { color: var(--muted); max-width: 560px; margin: 0; }
.id-anatomy { padding: 28px; border-radius: 26px; border: 1px solid var(--line); background: var(--panel); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.id-code { display: flex; flex-wrap: wrap; align-items: center; gap: 2px; font-family: var(--mono); font-size: clamp(22px, 3vw, 40px); font-weight: 600; letter-spacing: .04em; }
.seg { padding: 2px 4px; border-radius: 8px; animation: seg-in .6s var(--spring) both; }
.seg.p { color: var(--cyan); background: rgba(85, 214, 255, .1); }
.seg.k { color: var(--violet); background: rgba(155, 123, 255, .12); }
.seg.r { color: var(--ink); }
.seg.c { color: var(--green); background: rgba(69, 227, 168, .12); }
.dash { color: var(--dim); }
.id-code.typing .seg.r { animation: flicker .12s steps(2) 8; }
@keyframes seg-in { from { opacity: 0; transform: translateY(10px); } }
@keyframes flicker { 50% { opacity: .35; } }
.id-legend { list-style: none; display: grid; gap: 10px; margin: 22px 0 0; padding: 0; font-size: 14px; color: var(--muted); }
.id-legend li { display: flex; align-items: center; gap: 10px; }
.id-legend i { width: 10px; height: 10px; border-radius: 3px; }
.id-legend i.p { background: var(--cyan); } .id-legend i.k { background: var(--violet); } .id-legend i.r { background: var(--ink); } .id-legend i.c { background: var(--green); }
.kinds { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.kind-card { position: relative; padding: 24px; border-radius: 22px; border: 1px solid var(--line); background: var(--panel); overflow: hidden; transition: transform .5s var(--spring), border-color .4s; }
.kind-card:hover { transform: translateY(-6px) rotate(-.4deg); border-color: rgba(143, 162, 255, .35); }
.kind-card h3 { font-family: var(--display); font-size: 20px; font-weight: 600; margin: 16px 0 8px; }
.kind-card p { margin: 0; color: var(--muted); font-size: 14.5px; }
.kind-icon { display: block; width: 48px; height: 48px; border-radius: 16px; background: rgba(85, 115, 255, .16); position: relative; }
.kind-icon::before, .kind-icon::after { content: ''; position: absolute; border-radius: 4px; }
.kind-icon.agent::before { inset: 12px 10px 16px; border: 2px solid var(--blue-2); }
.kind-icon.agent::after { left: 18px; right: 18px; bottom: 11px; height: 2px; background: var(--blue-2); }
.kind-icon.box { background: rgba(255, 195, 107, .15); }
.kind-icon.box::before { inset: 11px; border: 2px solid var(--amber); border-radius: 8px; }
.kind-icon.box::after { left: 20px; top: 20px; width: 8px; height: 8px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 12px var(--amber); animation: blink 1.6s infinite; }
.kind-icon.hub { background: rgba(155, 123, 255, .16); }
.kind-icon.hub::before { inset: 10px 12px; border: 2px solid var(--violet); border-width: 2px 0; border-radius: 0; }
.kind-icon.hub::after { left: 21px; top: 21px; width: 6px; height: 6px; border-radius: 50%; background: var(--violet); box-shadow: 0 0 0 6px rgba(155, 123, 255, .25), 0 0 0 12px rgba(155, 123, 255, .1); animation: breathe 2.6s infinite; }
@keyframes blink { 50% { opacity: .3; } }
.flow { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; padding: 22px 26px; border-radius: 22px; border: 1px solid var(--line); background: linear-gradient(90deg, rgba(85, 214, 255, .06), rgba(85, 115, 255, .08), rgba(155, 123, 255, .06)); }
.flow-step { display: grid; gap: 4px; padding: 10px 14px; border-radius: 14px; background: rgba(5, 6, 10, .5); border: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.flow-id { font-family: var(--mono); font-size: 15px; font-weight: 600; color: var(--ink); }
.flow-arrow { position: relative; flex: 1; height: 2px; background: rgba(143, 162, 255, .2); border-radius: 2px; overflow: hidden; }
.flow-arrow i { position: absolute; top: 0; left: 0; width: 30%; height: 100%; background: linear-gradient(90deg, transparent, var(--blue-2), transparent); animation: beam 2.2s linear infinite; }

/* ---------- CTA & footer ---------- */
.cta { padding-bottom: 90px; }
.cta-card { position: relative; padding: clamp(32px, 5vw, 64px); border-radius: 32px; border: 1px solid rgba(143, 162, 255, .3); background: radial-gradient(600px circle at 10% 0%, rgba(85, 115, 255, .3), transparent 60%), radial-gradient(500px circle at 100% 100%, rgba(155, 123, 255, .25), transparent 60%), rgba(12, 14, 22, .8); overflow: hidden; }
.cta-card::after { content: ''; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; background: conic-gradient(from var(--angle, 0deg), transparent 70%, rgba(85, 214, 255, .9), transparent 85%); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; animation: orbit 6s linear infinite; pointer-events: none; }
@property --angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }
@keyframes orbit { to { --angle: 360deg; } }
.cta p { color: var(--muted); max-width: 640px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.foot { border-top: 1px solid var(--line); padding: 26px 0 34px; font-size: 13px; color: var(--dim); }
.foot-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; }
.foot-links { display: flex; gap: 16px; }
.foot-links a:hover { color: var(--ink); }

.reveal { opacity: 0; transform: translateY(34px); transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .streams, .ids { grid-template-columns: minmax(0, 1fr); }
  /* The navigation moves to a second, swipeable row. */
  .top-inner { flex-wrap: wrap; height: auto; padding: 12px 0 0; row-gap: 8px; }
  .top-nav { order: 3; width: 100%; margin: 0 0 0 -6px; padding-bottom: 8px; overflow-x: auto; scrollbar-width: none; }
  .top-nav::-webkit-scrollbar { display: none; }
  .top-nav a { flex-shrink: 0; padding: 6px 12px; font-size: 13.5px; }
}
@media (max-width: 480px) {
  .top-actions .btn { display: none; }
}
@media (max-width: 640px) {
  .wrap { width: calc(100% - 32px); }
  .top-inner { gap: 12px; }
  .brand-word { font-size: 23px; }
  .brand-cn { display: none; }
  .top-actions .btn { height: 38px; padding: 0 14px; font-size: 14px; }
  .hero { padding: 44px 0 26px; }
  .stats { gap: 10px; }
  .stat { padding: 16px 14px 14px; border-radius: 16px; }
  .stat-foot { display: none; }
  .viewport { height: 440px; }
  .stream-head { padding: 18px 16px 12px; }
  .track { padding: 8px; }
  .row { grid-template-columns: 38px minmax(0, 1fr) auto; gap: 10px; padding: 10px; }
  .row-icon { width: 38px; height: 38px; border-radius: 12px; }
  .match { grid-template-columns: minmax(0, 1fr) auto; }
  .route { flex-wrap: wrap; gap: 4px 8px; }
  .route .uid { flex-shrink: 0; font-size: 12px; }
  .beam { flex: 0 0 26px; }
  .kinds { grid-template-columns: minmax(0, 1fr); }
  .flow { flex-direction: column; align-items: stretch; }
  .flow-arrow { height: 22px; width: 2px; flex: none; margin-left: 24px; }
  .flow-arrow i { width: 100%; height: 40%; background: linear-gradient(180deg, transparent, var(--blue-2), transparent); animation: beam-y 2.2s linear infinite; }
  .id-anatomy { padding: 20px; }
}
@keyframes beam-y { from { transform: translateY(-100%); } to { transform: translateY(260%); } }