:root{
  --bg:#ffffff; --bg-soft:#faf9ff; --bg-deep:#f4f1ff;
  --purple:#7c3aed; --purple-dark:#6d28d9; --purple-deep:#5b21b6;
  --purple-100:#ede9fe; --purple-50:#f5f3ff;
  --ink:#0f172a; --ink-2:#334155; --muted:#64748b; --border:#e2e8f0;
  --radius:16px; --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);
  --shadow-md:0 8px 24px rgba(79,70,229,.10);
  --shadow-lg:0 20px 48px rgba(79,70,229,.16);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  --mono:'SFMono-Regular',Consolas,'Liberation Mono',Menlo,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16px}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
a{color:var(--purple);text-decoration:none}
a:hover{color:var(--purple-dark)}
img,svg{display:block}
main{min-height:60vh}
code{font-family:var(--mono);font-size:.92em;background:transparent;color:var(--ink);padding:0 2px;border-radius:0}

/* ---------- nav ---------- */
.site-nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.site-nav.scrolled{box-shadow:var(--shadow-sm)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:inline-flex;align-items:center;gap:9px;font-size:22px;font-weight:800;color:var(--ink);letter-spacing:-.5px}
.logo svg{flex:none}
.logo .logo-text{display:inline-flex;align-items:baseline;letter-spacing:-.5px}
.logo .logo-text span{color:var(--purple)}
.nav-links{display:flex;gap:24px;margin-left:8px;flex:1;align-items:center}
.nav-links>a{color:var(--ink-2);font-weight:500;font-size:15px}
.nav-links>a:hover{color:var(--purple)}
.nav-dropdown{position:relative}
.nav-dropdown-toggle{display:flex;align-items:center;gap:4px;cursor:pointer;color:var(--ink-2);font-weight:500;font-size:15px}
.nav-dropdown-toggle:hover{color:var(--purple)}
.nav-dropdown-toggle svg{transition:transform .2s}
.nav-dropdown:hover .nav-dropdown-toggle{color:var(--purple)}
.nav-dropdown:hover .nav-dropdown-toggle svg{transform:rotate(180deg)}
.nav-dropdown-menu{display:none;position:absolute;top:100%;left:-8px;min-width:260px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:6px;z-index:100}
.nav-dropdown:hover .nav-dropdown-menu{display:block}
.nav-dropdown:hover .nav-dropdown-menu.wide{display:grid}
.nav-dropdown-menu a{display:flex;flex-direction:column;gap:2px;padding:10px 14px;color:var(--ink-2);font-weight:500;font-size:14px;border-radius:8px;text-decoration:none}
.nav-dropdown-menu a:hover{background:var(--bg-deep);color:var(--purple)}
.nav-dropdown-menu a strong{font-size:14px;color:var(--ink)}
.nav-dropdown-menu a span{font-size:12.5px;color:var(--ink-3);font-weight:400}
.nav-dropdown-menu a:hover strong{color:var(--purple)}
.nav-dropdown-menu.wide{grid-template-columns:1fr 1fr;min-width:700px;gap:4px;padding:10px}
.nav-mega-col{display:flex;flex-direction:column}
.nav-mega-col + .nav-mega-col{border-left:1px solid var(--border);padding-left:6px}
.nav-api-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.nav-api-grid a{padding:8px 14px}
.nav-api-grid a span{font-size:11.5px}
.nav-dropdown-group{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);padding:10px 14px 4px;margin-top:2px}
.nav-dropdown-group:first-child{margin-top:0;padding-top:6px}
.nav-dropdown-group + .nav-dropdown-group{border-top:1px solid var(--border);margin-top:6px}
.nav-cta{display:flex;gap:10px;align-items:center}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--ink);line-height:1}
@media(max-width:900px){
  .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;gap:16px;border-bottom:1px solid var(--border);box-shadow:var(--shadow-md);max-height:calc(100vh - 68px);overflow-y:auto}
  body.nav-open .nav-links{display:flex}
  .nav-toggle{display:block;margin-left:auto}
  .nav-cta{display:none}
  .nav-dropdown{width:100%}
  .nav-dropdown-menu{display:block;position:static;box-shadow:none;border:none;min-width:0;padding:0 0 0 12px;margin-top:4px}
  .nav-dropdown-menu.wide{display:block;min-width:0;padding:0}
  .nav-dropdown:hover .nav-dropdown-menu.wide{display:block}
  .nav-mega-col{display:block}
  .nav-mega-col + .nav-mega-col{border-left:none;padding-left:0;margin-top:4px}
  .nav-dropdown-toggle svg{display:none}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;font-size:15px;border-radius:var(--radius-sm);padding:12px 22px;border:1px solid transparent;cursor:pointer;transition:all .15s ease;white-space:nowrap}
.btn .ic{width:18px;height:18px}
.btn-primary{background:var(--purple);color:#fff}
.btn-primary:hover{background:var(--purple-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{background:#fff;border-color:#d8d2f5;color:var(--purple)}
.btn-outline:hover{border-color:var(--purple);background:var(--purple-50);transform:translateY(-1px)}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-lg{padding:15px 28px;font-size:16px}
.btn-white{background:#fff;color:var(--purple-deep)}
.btn-white:hover{background:var(--purple-50);color:var(--purple-deep);transform:translateY(-1px)}
.btn-white-outline{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-white-outline:hover{border-color:#fff;background:rgba(255,255,255,.12);color:#fff}

/* ---------- home hero ---------- */
.hero{padding:88px 0 76px;border-bottom:1px solid var(--border);background:var(--bg-soft)}
.hero-inner{display:grid;grid-template-columns:1fr;gap:0}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr;gap:40px}}
.badge{display:inline-flex;align-items:center;gap:8px;background:var(--purple-50);border:1px solid var(--purple-100);color:var(--purple-dark);font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:20px}
.badge .ic{width:14px;height:14px}
h1.hero-title{font-size:52px;line-height:1.08;letter-spacing:-1.5px;font-weight:800}
@media(max-width:768px){h1.hero-title{font-size:38px;letter-spacing:-.8px}}
.hero-sub{font-size:18px;color:var(--muted);margin:22px 0 32px;max-width:520px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-meta{display:flex;gap:28px;margin-top:44px;flex-wrap:wrap}
.hero-meta .m{font-size:13px;color:var(--muted)}
.hero-meta .m b{display:block;font-size:19px;color:var(--ink);font-weight:700;letter-spacing:-.3px}
/* hero product cards */
.hero-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:30px}
@media(max-width:900px){.hero-cards{grid-template-columns:1fr}}
.product-card{border:1px solid var(--border);border-radius:16px;padding:20px 22px;background:#fff;box-shadow:var(--shadow-sm)}
.product-card h2{font-size:19px;line-height:1.3;letter-spacing:-.3px;color:var(--ink);margin:0 0 8px}
.product-card p{font-size:14px;line-height:1.55;color:var(--muted);margin:0 0 16px}
.product-card .hero-cta .btn{padding:9px 16px;font-size:14px}
.product-card .hero-meta{margin-top:18px;gap:18px}
.product-card .hero-meta .m{font-size:12px}
.product-card .hero-meta .m b{font-size:16px}
.product-card-plugins{border-color:#d8cdf5;background:linear-gradient(180deg,#fbfaff,#f6f2ff)}
.product-media{margin-bottom:16px}
.product-media img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;border-radius:12px;display:block;border:1px solid var(--border)}
.api-visual{position:relative;background:linear-gradient(160deg,#6d28d9,#7c3aed 55%,#8b5cf6);border-radius:12px;padding:18px 18px 14px;color:#fff;overflow:hidden;box-shadow:var(--shadow-md);aspect-ratio:16/9;display:flex;flex-direction:column;justify-content:space-between;border:1px solid var(--border)}
.api-visual .wave{height:auto;flex:1;min-height:70px}
.api-visual .hero-visual-foot{margin-top:14px;font-size:12px;color:rgba(255,255,255,.85)}
.api-visual .chip{font-size:12px;padding:6px 12px}

/* hero visual */
.hero-visual{position:relative;background:linear-gradient(160deg,#6d28d9,#7c3aed 55%,#8b5cf6);border-radius:24px;padding:48px 36px 36px;color:#fff;box-shadow:var(--shadow-lg);overflow:hidden}
.wave{display:flex;align-items:flex-end;gap:6px;height:130px}
.wave i{flex:1;border-radius:4px;background:rgba(255,255,255,.9);transform-origin:bottom;animation:wave 1.8s ease-in-out infinite}
.wave i:nth-child(2n){animation-delay:.25s}
.wave i:nth-child(3n){animation-delay:.5s}
@keyframes wave{0%,100%{transform:scaleY(.45)}50%{transform:scaleY(1)}}
.hero-visual-foot{display:flex;align-items:center;gap:8px;margin-top:26px;font-size:13px;color:rgba(255,255,255,.85);font-family:var(--mono)}
.dot-live{width:8px;height:8px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 3px rgba(74,222,128,.35)}
.chip{position:absolute;background:#fff;color:var(--purple-dark);font-weight:700;font-size:13px;padding:8px 14px;border-radius:999px;box-shadow:var(--shadow-md);animation:float 3.4s ease-in-out infinite}
.c1{top:20px;right:22px}.c2{bottom:24px;left:20px;animation-delay:.5s}.c3{top:66px;left:22px;animation-delay:1s}.c4{bottom:70px;right:22px;animation-delay:1.5s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ---------- before / after slider ---------- */
.ba{max-width:920px;margin:0 auto;user-select:none}
.ba-stage{position:relative;aspect-ratio:16/9;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-md);cursor:col-resize;touch-action:none}
.ba-full{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;pointer-events:none}
.ba-before-layer{position:absolute;inset:0;clip-path:inset(0 calc(100% - var(--pos,50%)) 0 0);pointer-events:none}
.ba-before{image-rendering:auto}
.ba-divider{position:absolute;top:0;bottom:0;left:var(--pos,50%);width:3px;background:#fff;transform:translateX(-50%);box-shadow:0 0 8px rgba(0,0,0,.35);cursor:col-resize;z-index:5;touch-action:none}
.ba-handle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:36px;height:36px;border-radius:50%;background:#fff;color:var(--ink);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 10px rgba(0,0,0,.3)}
.ba-tag{position:absolute;top:12px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.02em;background:rgba(0,0,0,.55);color:#fff;backdrop-filter:blur(4px);z-index:4;pointer-events:none}
.ba-tag-before{left:12px}
.ba-tag-after{right:12px}
.ba-divider:focus{outline:2px solid var(--purple);outline-offset:2px}
@media(max-width:560px){.ba-tag{font-size:11px;padding:3px 8px}}

/* codec metrics under sliders */
.ba-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
@media(max-width:720px){.ba-metrics{grid-template-columns:1fr}}
.ba-metric{background:#fff;border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px 18px;display:flex;flex-direction:column;gap:8px}
.ba-metric-label{font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.ba-metric-pair{display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:15px;flex-wrap:wrap}
.ba-metric-before{color:var(--muted);text-decoration:line-through;text-decoration-color:#cbd5e1}
.ba-metric-arrow{color:var(--purple);display:flex}
.ba-metric-arrow .ic{width:14px;height:14px}
.ba-metric-after{color:var(--purple);font-weight:700}

/* input -> output comparison panels (audio products) */
.cmp{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:stretch}
@media(max-width:900px){.cmp{grid-template-columns:1fr}.cmp-arrow{transform:rotate(90deg);justify-self:center}}
.cmp-col{display:flex}
.cmp-panel{flex:1;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-sm)}
.cmp-panel-out{border-color:#d8d2f5;box-shadow:0 0 0 1px var(--purple-100),var(--shadow-sm)}
.cmp-panel-title{display:flex;align-items:center;gap:10px;font-size:13.5px;font-weight:700;color:var(--ink-2);margin-bottom:18px;letter-spacing:.02em}
.cmp-chip{font-size:11px;font-weight:700;letter-spacing:.08em;padding:3px 9px;border-radius:999px}
.cmp-chip-in{background:#f1f5f9;color:#64748b}
.cmp-chip-out{background:var(--purple-100);color:var(--purple)}
.cmp-arrow{display:flex;align-items:center;color:var(--purple)}
.cmp-arrow .ic{width:26px;height:26px}
.wave-row{margin-bottom:16px}
.wave-row:last-child{margin-bottom:0}
.wave-head{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.wave-label{font-size:13px;font-weight:600;color:var(--ink-2)}
.wave-chip{font-size:10px;font-weight:700;letter-spacing:.1em;color:var(--purple);background:var(--purple-50);padding:2px 8px;border-radius:999px}
.wave-svg{width:100%;height:74px;display:block}
.wave-hint{display:block;font-size:12.5px;color:var(--muted);margin-top:6px}

/* loudness meter */
.loudness{margin-top:22px;padding-top:18px;border-top:1px dashed var(--border)}
.loudness-row{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.loudness-label{width:96px;font-size:12.5px;font-weight:600;color:var(--ink-2);flex:none}
.loudness-track{flex:1;height:12px;border-radius:999px;background:linear-gradient(90deg,#f1f5f9 0%,#e2e8f0 100%);border:1px solid var(--border);overflow:hidden}
.loudness-fill{display:block;height:100%;border-radius:999px}
.loudness-fill-before{background:#cbd5e1}
.loudness-fill-after{background:linear-gradient(90deg,#34d399,#10b981)}
.loudness-value{width:84px;text-align:right;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--muted);flex:none}
.loudness-value-ok{color:#059669}
.loudness-cap{font-size:12.5px;color:var(--muted);margin-top:10px}

/* frame interpolation animation */
.fi-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:760px){.fi-grid{grid-template-columns:1fr}}
.fi-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm)}
.fi-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.fi-chip{font-size:11px;font-weight:700;letter-spacing:.08em;padding:3px 9px;border-radius:999px}
.fi-chip-in{background:#f1f5f9;color:#64748b}
.fi-chip-out{background:var(--purple-100);color:var(--purple)}
.fi-head strong{font-size:15px;font-weight:700;color:var(--ink)}
.fi-fps{margin-left:auto;font-family:var(--mono);font-size:17px;font-weight:800;color:var(--purple)}
.fi-stage{position:relative;height:110px;border-radius:12px;border:1px solid var(--border);overflow:hidden}
.fi-stage-in{background:linear-gradient(180deg,#f8fafc,#f1f5f9)}
.fi-stage-out{background:linear-gradient(180deg,#faf9ff,#f1eefe)}
.fi-trackline{position:absolute;left:8%;right:8%;top:50%;height:2px;background:repeating-linear-gradient(90deg,#c7d2fe 0 6px,transparent 6px 14px);transform:translateY(-1px)}
.fi-ball{position:absolute;top:50%;width:26px;height:26px;border-radius:50%;transform:translate(-50%,-50%)}
.fi-ball-in{left:8%;background:#e2e8f0;border:3px solid #94a3b8;animation:fi-in 1.9s steps(8) infinite}
.fi-ball-out{left:8%;background:linear-gradient(135deg,#a78bfa,#7c3aed);box-shadow:0 0 0 6px rgba(124,58,237,.14),0 8px 20px rgba(124,58,237,.4);animation:fi-out 1.9s linear infinite}
@keyframes fi-in{0%{left:8%}100%{left:84%}}
@keyframes fi-out{0%{left:8%}100%{left:84%}}
.fi-cap{font-size:13px;color:var(--muted);margin-top:14px}
.fi-timeline{margin-top:26px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 24px 16px}
.fi-svg{width:100%;height:auto;display:block}
.fi-tl-label{font-size:13px;font-weight:700;fill:var(--ink-2)}
.fi-tl-t{font-size:12px;fill:var(--muted)}
.fi-legend{display:flex;gap:22px;margin-top:14px;justify-content:center;flex-wrap:wrap}
.fi-legend-item{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2)}
.fi-dot-key{width:14px;height:14px;border-radius:50%;display:inline-block}
.fi-dot-key-solid{background:#7c3aed}
.fi-dot-key-outline{border:2px solid #7c3aed;background:transparent}

/* subtitle extractor: video -> srt */
.srt-cmp{display:grid;grid-template-columns:1fr auto 1fr;gap:18px;align-items:center}
@media(max-width:900px){.srt-cmp{grid-template-columns:1fr}.srt-arrow{transform:rotate(90deg);justify-self:center}}
.srt-col{display:flex;flex-direction:column;gap:12px;min-width:0}
.srt-player{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-md);aspect-ratio:16/9;background:#0f172a}
.srt-player img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85}
.srt-play{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:56px;height:56px;border-radius:50%;background:rgba(124,58,237,.92);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 24px rgba(124,58,237,.5)}
.srt-play .ic{width:22px;height:22px;margin-left:3px}
.srt-time{position:absolute;bottom:22px;left:14px;font-family:var(--mono);font-size:12px;color:#e2e8f0;text-shadow:0 1px 3px rgba(0,0,0,.6)}
.srt-progress{position:absolute;left:0;right:0;bottom:0;height:5px;background:rgba(255,255,255,.25)}
.srt-progress-fill{display:block;width:42%;height:100%;background:var(--purple)}
.srt-chip{position:absolute;top:12px;left:12px;font-size:11px;font-weight:700;letter-spacing:.08em;padding:4px 10px;border-radius:999px;backdrop-filter:blur(4px)}
.srt-chip-in{background:rgba(15,23,42,.6);color:#fff}
.srt-cap{font-size:13px;color:var(--muted)}
.srt-arrow{display:flex;align-items:center;color:var(--purple)}
.srt-arrow .ic{width:26px;height:26px}
.srt-code{background:#f4f4f5;border:1px solid var(--border);border-radius:var(--radius-sm);padding:20px 22px;font-family:var(--mono);font-size:13.5px;line-height:1.7;color:var(--ink);white-space:pre-wrap;word-break:break-word;margin:0}
.srt-n{color:#94a3b8;font-weight:700}
.srt-t{color:var(--purple)}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--purple);margin-bottom:12px}
.product-name{display:inline-flex;align-items:center;gap:7px;margin-bottom:14px;padding:5px 12px;border:1px solid var(--purple-100);background:var(--purple-50);border-radius:999px;font-family:var(--mono);font-size:12.5px;color:var(--purple-deep)}
.product-name svg{flex:none;opacity:.85}
.product-name a{color:var(--purple-deep)}
.product-name a:hover{color:var(--purple)}
.section h2{font-size:36px;letter-spacing:-.8px;font-weight:800;margin-bottom:14px;line-height:1.15}
.section .lead{font-size:17px;color:var(--muted);max-width:680px;margin-bottom:44px}
.table-foot{font-size:14px;color:var(--muted);margin-top:18px}
.table-foot .ic{display:inline-block;width:14px;height:14px;vertical-align:-2px}

/* grids & cards */
.grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:680px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px;transition:all .18s ease}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#d8d2f5}
.card-link{display:flex;flex-direction:column}
.link{display:inline-flex;align-items:center;gap:6px}
.link .ic{width:15px;height:15px}
.card .icon-box{width:46px;height:46px;border-radius:12px;background:var(--purple-50);color:var(--purple);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.card .icon-box .ic{width:22px;height:22px}
.card h3{font-size:17px;font-weight:700;margin-bottom:8px;letter-spacing:-.2px}
.card p{color:var(--muted);font-size:14.5px;line-height:1.65}
.card .tag{display:inline-block;font-size:12px;font-weight:600;color:var(--purple);background:var(--purple-50);border:1px solid var(--purple-100);padding:3px 10px;border-radius:999px;margin-bottom:14px;align-self:flex-start}
.card .link{font-weight:600;font-size:14.5px;color:var(--purple);display:inline-flex;align-items:center;gap:6px;margin-top:14px}
.card .link .ic{width:15px;height:15px}
.card-accent{border-color:var(--purple);box-shadow:0 0 0 1px var(--purple)}
.price{font-size:30px;font-weight:800;letter-spacing:-1px;color:var(--ink);margin:6px 0 14px}
.credits-count{font-size:15px;font-weight:700;color:var(--purple);margin:-6px 0 12px;display:flex;align-items:center;gap:6px}
.credits-count::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--purple);flex:none}
.plan-group{font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.grid-3 + .plan-group{margin-top:44px}

/* cross-category pricing banner (api <-> plugin pricing) */
.crosslink{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;border:1px solid var(--purple-100);background:var(--purple-50);border-radius:12px;padding:14px 18px;margin:26px 0 0}
.crosslink p{margin:0;font-size:14px;color:var(--ink-2)}
.crosslink .link{font-weight:700;font-size:14px;white-space:nowrap}

/* gaussian splat viewport (UE5 plugin hero visual) */
.splat-viewport{position:relative;border-radius:20px;overflow:hidden;background:linear-gradient(165deg,#1e1b4b 0%,#312e81 45%,#4c1d95 100%);padding:34px 30px 26px;color:#fff;box-shadow:var(--shadow-lg);min-height:320px}
.splat-canvas{position:relative;height:210px}
.splat-dot{position:absolute;border-radius:50%;filter:blur(1px);opacity:0;animation:splat-in 1.1s ease-out forwards}
@keyframes splat-in{from{opacity:0;transform:scale(.2)}to{opacity:.95;transform:scale(1)}}
.splat-dot:nth-child(2n){animation-delay:.15s}
.splat-dot:nth-child(3n){animation-delay:.3s}
.splat-dot:nth-child(5n){animation-delay:.45s}
.splat-dot:nth-child(7n){animation-delay:.6s}
.splat-hud{position:absolute;top:16px;left:18px;font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.85);background:rgba(15,10,40,.55);border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:6px 10px;backdrop-filter:blur(3px)}
.splat-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-top:22px}
.splat-stats{display:flex;gap:22px;flex-wrap:wrap}
.splat-stats b{font-size:16px;font-weight:800}
.splat-stats span{font-size:12px;color:rgba(255,255,255,.7);display:block}
.splat-viewport .chip{position:absolute;z-index:2}

/* 4DGS showcase stage */
.showcase-stage{position:relative;border-radius:20px;overflow:hidden;background:linear-gradient(160deg,#172554 0%,#312e81 50%,#6d28d9 100%);color:#fff;box-shadow:var(--shadow-lg);min-height:300px}
.showcase-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;background:#0b0620;z-index:0}
.showcase-hud{position:absolute;top:16px;left:18px;z-index:2;font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.85);background:rgba(15,10,40,.55);border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:6px 10px;backdrop-filter:blur(3px)}
.showcase-stats{position:absolute;top:16px;right:18px;z-index:2;display:flex;gap:10px;font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.85);background:rgba(15,10,40,.55);border:1px solid rgba(255,255,255,.18);border-radius:8px;padding:6px 10px}
.showcase-stats b{color:#e879f9}
.showcase-controls{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:16px 20px;background:linear-gradient(0deg,rgba(10,6,30,.92),rgba(10,6,30,0));display:flex;align-items:center;gap:14px}
.showcase-ico{display:flex;color:rgba(255,255,255,.9)}
.showcase-ico .ic{width:14px;height:14px}
.showcase-timeline{flex:1;height:6px;border-radius:3px;background:rgba(255,255,255,.25);overflow:hidden}
.showcase-timeline i{display:block;height:100%;width:53%;border-radius:3px;background:linear-gradient(90deg,#a78bfa,#e879f9)}
.showcase-time{font-family:var(--mono);font-size:12px;color:rgba(255,255,255,.85);white-space:nowrap}

/* pipeline capability cards with looping videos */
.pipeline-card{padding-bottom:22px;overflow:hidden}
.pipeline-video{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#0b0620;margin:0 0 18px}
.pipeline-video img{width:100%;height:100%;display:block;object-fit:cover}
.pipeline-card h3{margin:0 0 8px}
.pipeline-card p{margin:0}

/* engine compatibility grid */
.compat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
@media(max-width:900px){.compat-grid{grid-template-columns:repeat(2,1fr)}}
.compat-cell{border:1px solid var(--border);border-radius:12px;padding:14px 16px;background:#fff;text-align:center}
.compat-cell b{display:block;font-size:15px;margin-bottom:4px}
.compat-cell span{font-size:12.5px;color:var(--muted)}
.checklist{list-style:none;margin:12px 0 20px;display:grid;gap:8px}
.checklist li{padding-left:26px;position:relative;font-size:14.5px;color:var(--ink-2)}
.checklist li::before{content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:50%;background:var(--purple-50);border:1px solid var(--purple-100)}
.checklist li::after{content:"";position:absolute;left:5px;top:8px;width:6px;height:3px;border-left:2px solid var(--purple);border-bottom:2px solid var(--purple);transform:rotate(-45deg)}

/* pipeline */
.pipeline-label{font-size:13px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-2);margin:34px 0 14px}
.pipeline-label:first-child{margin-top:0}
.pipeline{display:flex;align-items:stretch;gap:10px;flex-wrap:wrap}
.step{background:#fff;border:1px solid var(--border);border-radius:12px;padding:12px 16px;font-weight:600;font-size:14px;display:flex;align-items:center;gap:10px;color:var(--ink-2);transition:all .15s ease}
a.step:hover{border-color:var(--purple);color:var(--purple);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.step .n{width:24px;height:24px;border-radius:8px;background:var(--purple);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:700}
.step-arrow{color:var(--purple);align-self:center;display:flex}
.step-arrow .ic{width:18px;height:18px}

/* page hero (subpages) */
.page-hero{padding:56px 0 48px;border-bottom:1px solid var(--border);background:radial-gradient(800px 400px at 90% -20%,#f5f3ff 0%,rgba(255,255,255,0) 60%)}
.page-hero h1{font-size:42px;letter-spacing:-1.2px;font-weight:800;line-height:1.12}
@media(max-width:768px){.page-hero h1{font-size:31px;letter-spacing:-.6px}}
.page-hero .lede{font-size:17.5px;color:var(--muted);max-width:680px;margin-top:16px}
.page-hero .tags{margin-top:18px;display:flex;gap:8px;flex-wrap:wrap}
.page-hero .cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.breadcrumb{font-size:13.5px;color:var(--muted);margin-bottom:26px}
.breadcrumb a{color:var(--muted)}.breadcrumb a:hover{color:var(--purple)}
.breadcrumb .sep{margin:0 8px;color:#cbd5e1}

/* split text+code */
.split{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
@media(max-width:900px){.split{grid-template-columns:1fr;gap:28px}}
.split-text h2{margin-bottom:14px}
.split-text p{color:var(--muted);font-size:16px;margin-bottom:18px}
.split-text .link{font-weight:600;display:inline-flex;align-items:center;gap:6px}
.split-text .link .ic{width:15px;height:15px}
.split-text .checklist{margin-top:14px}

/* code — light gray block, black text, no font background */
.code{border-radius:var(--radius);overflow:hidden;border:1px solid #e2e8f0;background:#f4f4f5;margin:24px 0 0}
.code-head{display:flex;align-items:center;gap:6px;padding:12px 18px;background:#ececee;border-bottom:1px solid #e2e8f0}
.code-head .dot{width:10px;height:10px;border-radius:50%;background:#d4d4d8}
.code-head span:last-child{font-size:12px;color:#71717a;font-weight:600;margin-left:8px}
.code pre{padding:20px 22px;overflow-x:auto;color:#18181b;font-size:13px;line-height:1.75;font-family:var(--mono);background:transparent}
.split-code .code{margin-top:0}

/* faq */
.faq{max-width:800px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden}
.faq-item summary{cursor:pointer;padding:18px 22px;font-weight:600;font-size:15.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--purple);font-size:20px;font-weight:600;transition:transform .2s;flex:none}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 22px 20px;color:var(--muted);font-size:15px}

/* tables */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:#fff}
table{width:100%;border-collapse:collapse;font-size:14.5px;min-width:560px}
th,td{text-align:left;padding:15px 18px;border-bottom:1px solid var(--border)}
th{background:var(--bg-soft);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--ink-2)}
tr:last-child td{border-bottom:none}
.price-cell{font-weight:800;color:var(--purple);white-space:nowrap}
td b{color:var(--ink)}
td a{font-weight:600}

/* vertical steps */
.steps-vertical{display:grid;gap:22px;max-width:760px}
.step-v{display:flex;gap:18px;align-items:flex-start}
.step-v .n{width:34px;height:34px;border-radius:12px;background:var(--purple);color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none}
.step-v h3{font-size:17px;font-weight:700;margin-bottom:4px}
.step-v p{color:var(--muted);font-size:15px}

/* note */
.note{border:1px solid var(--purple-100);background:var(--purple-50);border-radius:12px;padding:16px 20px;font-size:14.5px;color:var(--ink-2);margin-top:22px}
.note b{color:var(--purple-dark)}

/* cta band */
.cta-band{background:linear-gradient(150deg,#6d28d9,#7c3aed 60%,#8b5cf6);color:#fff;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{font-size:32px;letter-spacing:-.8px;font-weight:800;margin-bottom:10px}
.cta-band .lead{font-size:16.5px;color:rgba(255,255,255,.85);max-width:520px;margin-bottom:0}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .cta-row{flex-direction:row}
.cta-band-light{background:#fff;color:var(--ink);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.cta-band-light h2{color:var(--ink)}
.cta-band-light .lead{color:var(--muted)}

/* plugins product zone (home) */
.section-plugins{background:#fff;border-bottom:1px solid var(--border)}

/* ---------- hub pages ---------- */
.hub-count{margin-top:16px}
.hub-count span{font-size:14px;font-weight:600;color:var(--purple);background:var(--bg-deep);padding:6px 16px;border-radius:999px}
.hub-group-head{display:flex;align-items:center;gap:16px;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.hub-group-icon{width:44px;height:44px;border-radius:10px;background:var(--bg-deep);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.hub-group-icon svg{width:24px;height:24px;color:var(--purple)}
.hub-group-head h2{font-size:22px;margin:0}
.hub-group-head p{font-size:14px;color:var(--muted);margin:2px 0 0}
.hub-group-head .btn{margin-left:auto;white-space:nowrap}
.card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.card-icon svg{width:20px;height:20px;color:var(--purple)}
@media(max-width:600px){.hub-group-head{flex-wrap:wrap}.hub-group-head .btn{margin-left:0}}
.card-compact{padding:20px}
.card-compact h3{font-size:16px;margin:8px 0 6px}
.card-compact p{font-size:13.5px}
.tag-sm{font-size:11px;padding:2px 8px}

/* footer */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:60px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr 1fr;gap:32px}
@media(max-width:1000px){.footer-grid{grid-template-columns:1fr 1fr 1fr}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}
.footer-brand p{color:var(--muted);font-size:14px;margin-top:12px;max-width:280px}
.footer-badges{display:flex;gap:8px;margin-top:16px}
.footer-badges .tag{font-size:12px;font-weight:600;color:var(--purple);background:#fff;border:1px solid var(--purple-100);padding:4px 12px;border-radius:999px}
.footer-col h4{font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-2);margin-bottom:14px}
.footer-col a{display:block;color:var(--muted);font-size:14.5px;padding:5px 0}
.footer-col a:hover{color:var(--purple)}
.footer-bottom{border-top:1px solid var(--border);margin-top:48px;padding-top:24px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13.5px}
.footer-bottom a{color:var(--muted)}.footer-bottom a:hover{color:var(--purple)}

/* auth modal */
.auth-backdrop{position:fixed;inset:0;background:rgba(15,15,25,.55);display:flex;align-items:center;justify-content:center;z-index:2000;padding:20px;backdrop-filter:blur(3px);opacity:0;pointer-events:none;transition:opacity .18s ease}
.auth-backdrop[aria-hidden="false"]{opacity:1;pointer-events:auto}
.auth-modal{background:#fff;border-radius:18px;width:100%;max-width:420px;max-height:calc(100vh - 40px);overflow-y:auto;box-shadow:0 30px 80px rgba(15,15,25,.35);padding:34px 32px 28px;position:relative;transform:translateY(10px) scale(.98);transition:transform .2s ease}
.auth-backdrop[aria-hidden="false"] .auth-modal{transform:translateY(0) scale(1)}
.auth-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border:none;background:var(--bg-soft);color:var(--muted);border-radius:50%;font-size:14px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,color .15s}
.auth-close:hover{background:var(--bg-deep);color:var(--ink)}
.auth-brand{margin-bottom:16px}
.auth-brand .logo{font-size:19px}
.auth-head h2{font-size:24px;margin:0 0 6px;letter-spacing:-.5px}
.auth-sub{color:var(--muted);font-size:14.5px;margin:0 0 22px}
.auth-link{background:none;border:none;padding:0;color:var(--purple);font-size:14.5px;font-weight:600;cursor:pointer}
.auth-link:hover{color:var(--purple-dark);text-decoration:underline}
.auth-social{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:10px;background:#fff;color:var(--ink-2);font-size:15px;font-weight:600;cursor:pointer;margin-bottom:10px;transition:border-color .15s,background .15s,transform .15s}
.auth-social:hover{border-color:#c9c2ee;background:var(--bg-soft);color:var(--ink);transform:translateY(-1px)}
.auth-social svg{flex:none}
.auth-or{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:16px 0}
.auth-or::before,.auth-or::after{content:"";flex:1;height:1px;background:var(--border)}
.auth-form{display:flex;flex-direction:column;gap:14px}
.auth-field{display:flex;flex-direction:column;gap:6px}
.auth-field span{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.auth-field input{padding:11px 13px;border:1px solid var(--border);border-radius:10px;font-size:15px;color:var(--ink);background:#fff;outline:none;transition:border-color .15s,box-shadow .15s}
.auth-field input:focus{border-color:var(--purple);box-shadow:0 0 0 3px var(--purple-100)}
.auth-field input::placeholder{color:#9aa4b2}
.auth-msg{font-size:13.5px;display:none}
.auth-msg.auth-ok{display:block;color:#15803d;background:#f0fdf4;border:1px solid #bbf7d0;border-radius:8px;padding:8px 10px}
.auth-msg.auth-err{display:block;color:#b91c1c;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;padding:8px 10px}
.auth-foot{text-align:center;color:var(--muted);font-size:14px;margin:18px 0 0}
.auth-forgot{text-align:right;margin:-4px 0 0;font-size:13.5px}
.auth-forgot .auth-link{font-size:13.5px}
.cb-card{max-width:480px;margin:8px auto 0;background:#fff;border:1px solid var(--border);border-radius:16px;padding:30px 28px;box-shadow:var(--shadow-md);text-align:center}
.cb-brand{display:flex;justify-content:center;margin-bottom:16px}
.cb-status{font-size:17px;font-weight:700;margin-bottom:6px}
.cb-status.cb-ok{color:#15803d}
.cb-status.cb-err{color:#b91c1c}
.cb-detail{color:var(--muted);font-size:14px;word-break:break-word}
.btn-block{width:100%;padding:12px;font-size:15px;border-radius:10px}
body.modal-open{overflow:hidden}