:root{
  --bg:#0b0d17;--bg-2:#11142a;--surface:rgba(255,255,255,.04);--border:rgba(255,255,255,.1);
  --text:#e9ebf8;--muted:#9aa0bd;--accent:#7c5cff;--accent-2:#19d3c5;--base:#4a5070;
  --shadow:0 20px 60px rgba(0,0,0,.45);--radius:18px;
  --font:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;--mono:"JetBrains Mono",ui-monospace,monospace;
}
:root[data-theme="light"]{
  --bg:#f7f8fc;--bg-2:#eceffa;--surface:#fff;--border:rgba(15,20,50,.1);
  --text:#14172b;--muted:#545a78;--accent:#5b3df5;--accent-2:#0a8a81;--base:#c3c7da;
  --shadow:0 20px 50px rgba(30,40,90,.12);
}
@media (prefers-color-scheme:light){
  :root:not([data-theme="dark"]){
    --bg:#f7f8fc;--bg-2:#eceffa;--surface:#fff;--border:rgba(15,20,50,.1);
    --text:#14172b;--muted:#545a78;--accent:#5b3df5;--accent-2:#0a8a81;--base:#c3c7da;
    --shadow:0 20px 50px rgba(30,40,90,.12);
  }
}
*{box-sizing:border-box;margin:0}
h1,h2,h3{overflow-wrap:normal;word-break:normal;text-wrap:balance}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
body.locked{overflow:hidden}
img,svg,canvas{display:block}
a{color:inherit}
code,pre{font-family:var(--mono)}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#fff;padding:8px 14px;border-radius:8px;z-index:200}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:6px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:999px;font:inherit;font-weight:600;text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,border-color .2s}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 8px 24px color-mix(in srgb,var(--accent) 40%,transparent)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px color-mix(in srgb,var(--accent) 55%,transparent)}
.btn-ghost{border-color:var(--border);background:var(--surface);color:var(--text)}
.btn-ghost:hover{border-color:var(--accent)}
.btn-sm{padding:8px 16px;font-size:.9rem}
.link-btn{display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:10px 20px;min-height:44px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;font-weight:600;cursor:pointer;opacity:0;animation:fade .8s 1.2s forwards;transition:border-color .2s}
.link-btn:hover{border-color:var(--accent)}

/* splash */
.splash-close{position:fixed;top:14px;right:14px;z-index:2;width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text);display:grid;place-items:center;cursor:pointer;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);transition:transform .2s,border-color .2s}
.splash-close:hover{transform:rotate(90deg);border-color:var(--accent)}
.splash{position:fixed;inset:0;z-index:100;display:flex;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;background:color-mix(in srgb,var(--bg) 84%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:opacity .45s,visibility .45s}
.splash.hide{opacity:0;visibility:hidden;pointer-events:none}
.splash-inner{position:relative;text-align:center;padding:24px;max-width:920px;margin:auto}
.splash-brand{display:inline-flex;flex-direction:column;align-items:center;text-decoration:none;color:inherit;border-radius:14px}
.splash-brand:hover .eyebrow{text-decoration:underline}
.splash-logo{margin:0 auto 18px;animation:spin-in 1.2s cubic-bezier(.2,.8,.2,1),float 5s 1.2s ease-in-out infinite}
.eyebrow{letter-spacing:.35em;text-transform:uppercase;font-size:.8rem;color:var(--accent-2);font-weight:700}
.splash-title{font-size:clamp(3rem,11vw,7rem);font-weight:800;line-height:1.05;margin:10px 0 16px;letter-spacing:-.03em;overflow-wrap:normal;word-break:keep-all}
.splash-title .word{display:inline-block;white-space:nowrap}
.splash-title .word>span{display:inline-block;background:linear-gradient(120deg,var(--text) 20%,var(--accent) 50%,var(--accent-2) 80%,var(--text));background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;opacity:0;animation:drop .8s cubic-bezier(.2,.9,.3,1.3) forwards,shimmer 6s linear infinite;animation-delay:calc(var(--i,0) * 70ms),0s}
.splash-title .bang{background:none;color:var(--accent-2);animation:drop .8s .95s cubic-bezier(.2,.9,.3,1.3) forwards,pulse 1.6s 1.8s ease-in-out infinite}
.splash-sub{color:var(--muted);font-size:1.1rem;opacity:0;animation:fade .8s 1.1s forwards}
.notify{display:flex;gap:8px;margin:20px auto 0;max-width:440px;opacity:0;animation:fade .8s 1.3s forwards}
.notify input{flex:1;min-width:0;padding:12px 18px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.notify-fine{color:var(--muted);font-size:.8rem;margin-top:4px}
.notify-msg{min-height:1.5em;margin-top:10px;color:var(--accent-2);font-size:.95rem}
.splash-orbs{position:fixed;inset:0;overflow:hidden;pointer-events:none}
.splash-orbs span{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:orb 14s ease-in-out infinite alternate}
.splash-orbs span:nth-child(1){width:420px;height:420px;background:var(--accent);top:-120px;left:-80px}
.splash-orbs span:nth-child(2){width:360px;height:360px;background:var(--accent-2);bottom:-120px;right:-60px;animation-delay:-5s}
.splash-orbs span:nth-child(3){width:260px;height:260px;background:#ff5ca8;top:40%;left:60%;opacity:.25;animation-delay:-9s}
.splash-grid{position:fixed;inset:-50%;pointer-events:none;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:48px 48px;transform:perspective(600px) rotateX(60deg);animation:grid 3s linear infinite;-webkit-mask-image:radial-gradient(ellipse at 50% 60%,#000 20%,transparent 60%);mask-image:radial-gradient(ellipse at 50% 60%,#000 20%,transparent 60%)}

/* nav */
.nav{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:color-mix(in srgb,var(--bg) 75%,transparent);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;text-decoration:none;font-size:1.1rem}
.brand-block{display:flex;flex-direction:column;align-items:flex-start;line-height:1.1}
.byline{margin:2px 0 0 42px;font-size:.68rem;letter-spacing:.04em;color:var(--muted);text-decoration:none}
.byline:hover{color:var(--accent-2);text-decoration:underline}
.nav-links{display:flex;gap:28px;list-style:none;padding:0}
.nav-links a{text-decoration:none;color:var(--muted);font-weight:500}
.nav-links a:hover{color:var(--text)}
.nav-actions{display:flex;gap:10px;align-items:center}
.theme-toggle{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text);display:grid;place-items:center;cursor:pointer}
.i-moon{display:none}
:root[data-theme="light"] .i-sun{display:none}
:root[data-theme="light"] .i-moon{display:block}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]) .i-sun{display:none}:root:not([data-theme="dark"]) .i-moon{display:block}}

/* hero */
.hero{position:relative;min-height:88vh;display:grid;align-items:center;overflow:hidden}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%}
.hero-inner{position:relative;padding:80px 0}
.pill{display:inline-flex;gap:8px;align-items:center;padding:6px 14px;border-radius:999px;border:1px solid var(--border);background:var(--surface);font-size:.85rem;color:var(--muted)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);animation:ping 2s infinite}
.hero h1{font-size:clamp(2.4rem,6.5vw,4.8rem);line-height:1.05;letter-spacing:-.035em;margin:22px 0;max-width:15ch}
.grad{background:linear-gradient(120deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{font-size:1.2rem;color:var(--muted);max-width:56ch}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:32px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:-40px;position:relative}
.stat{padding:24px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);backdrop-filter:blur(10px)}
.stat strong{font-size:2.6rem;font-weight:800;letter-spacing:-.03em}
.stat span{font-size:1.6rem;font-weight:800;color:var(--accent-2)}
.stat p{color:var(--muted);font-size:.95rem}

/* sections */
.section{padding-top:110px}
.section h2{font-size:clamp(1.9rem,4vw,2.8rem);letter-spacing:-.03em;line-height:1.15}
.section-lead{color:var(--muted);font-size:1.1rem;margin:10px 0 40px;max-width:60ch}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{padding:28px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);transition:transform .3s,border-color .3s,opacity .8s}
.card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--accent) 60%,transparent)}
.card h3{margin:14px 0 6px;font-size:1.15rem}
.card p{color:var(--muted)}
.ico{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;font-size:1.3rem;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent-2))}

.flow{width:100%;height:auto;margin-bottom:30px}
.flow-nodes rect,.flow-nodes circle{fill:var(--surface);stroke:var(--border);stroke-width:1.5}
.flow-nodes .out{fill:var(--accent)}
.flow-nodes text{fill:var(--text);font:600 16px var(--font);text-anchor:middle}
.flow-nodes text.s{font:400 12px var(--mono);fill:var(--muted)}
.flow-nodes text.o{fill:#fff}
.flow-lines path{stroke-width:4;stroke-linecap:round;stroke-dasharray:.1 13;animation:dash .2s linear infinite}
/* Storage side (SSD -> index -> RAM cache) is slower than compute side; both are faster than the old 16px/s */
.flow-lines path.slow{animation-duration:.4s}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;padding:0;list-style:none;counter-reset:s}
.steps li{counter-increment:s;color:var(--muted);padding-top:14px;border-top:2px solid var(--border)}
.steps li::before{content:"0" counter(s);display:block;font:600 .85rem var(--mono);color:var(--accent-2);margin-bottom:6px}
.steps b{color:var(--text)}

.bench{padding:28px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border)}
.bar-row{display:grid;grid-template-columns:180px 1fr 120px;gap:16px;align-items:center;padding:12px 0}
.bar-row span{font-weight:600}
.bars{display:grid;gap:6px}
.b{display:block;height:12px;border-radius:6px;width:0;transition:width 1.4s cubic-bezier(.2,.8,.2,1)}
.b.base{background:var(--base)}
.b.us{background:linear-gradient(90deg,var(--accent),var(--accent-2));transition-delay:.2s}
.bench.in .b{width:calc(var(--v) / 164.5 * 100%)}
.bar-row em{font-style:normal;font-weight:800;text-align:right}
.bar-row small{color:var(--accent-2);font-weight:600}
.legend{display:flex;gap:10px;align-items:center;color:var(--muted);margin-top:12px;font-size:.9rem}
.k{width:14px;height:8px;border-radius:4px;display:inline-block}
.k.base{background:var(--base)}
.k.us{background:linear-gradient(90deg,var(--accent),var(--accent-2));margin-left:10px}

.primary-models{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.pmodel{position:relative;padding:36px;border-radius:24px;border:1px solid color-mix(in srgb,var(--accent) 45%,var(--border));background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 14%,var(--surface)),color-mix(in srgb,var(--accent-2) 10%,var(--surface)));box-shadow:var(--shadow);overflow:hidden}
.pmodel::after{content:"";position:absolute;inset:auto -40px -60px auto;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--accent) 35%,transparent),transparent 70%);pointer-events:none}
.pmodel h3{font-size:clamp(1.6rem,3vw,2.2rem);letter-spacing:-.02em;margin:14px 0 4px;position:relative}
.pmodel h3 small{font-size:.5em;font-weight:600;color:var(--muted);letter-spacing:0}
.pmodel .spec{font:600 .95rem var(--mono);color:var(--accent-2);margin-bottom:12px}
.pmodel p{color:var(--muted);position:relative}
.pmodel .spec{color:var(--accent-2)}
.badge{display:inline-block;padding:3px 12px;border-radius:999px;font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.sub-h{font-size:1rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:44px 0 0}
.models{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}
.model.more{border-style:dashed;background:transparent}
.model.more h3{color:var(--accent-2)}
.model{padding:22px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface)}
.model h3{font-size:1rem}
.model p{color:var(--muted);font:400 .85rem var(--mono)}

.start{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:center;padding:48px;border-radius:28px;background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 18%,var(--bg-2)),var(--bg-2));border:1px solid var(--border)}
.start p{color:var(--muted);margin:12px 0 24px}
.term{background:#070811;color:#d6d9f0;padding:22px;border-radius:14px;overflow-x:auto;font-size:.9rem;line-height:1.8;border:1px solid rgba(255,255,255,.08)}
.term .c{color:#7d84a8}.term .p{color:#19d3c5}.term .o{color:#b3a7ff}
.cursor{display:inline-block;width:8px;height:1.1em;background:#19d3c5;vertical-align:middle;margin-left:4px;animation:blink 1s steps(1) infinite}

.confirm{min-height:100vh;display:grid;place-content:center;justify-items:center;gap:16px;text-align:center;padding:24px}
.confirm-brand{display:grid;justify-items:center;gap:8px;text-decoration:none;color:inherit;font-weight:800}
.confirm h1{font-size:clamp(1.8rem,5vw,2.6rem);letter-spacing:-.03em}
.confirm p{color:var(--muted);max-width:44ch}
.footer{margin-top:110px;border-top:1px solid var(--border);padding:32px 0;color:var(--muted)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:none}
.card.reveal.in:hover{transform:translateY(-4px)}

@keyframes drop{from{opacity:0;transform:translateY(-60px) rotate(-8deg)}to{opacity:1;transform:none}}
@keyframes shimmer{to{background-position:-300% 0}}
@keyframes fade{to{opacity:1}}
@keyframes pulse{50%{transform:scale(1.2)}}
@keyframes float{50%{transform:translateY(-10px)}}
@keyframes spin-in{from{transform:rotate(-180deg) scale(0)}}
@keyframes orb{to{transform:translate(80px,60px) scale(1.2)}}
@keyframes grid{to{background-position:0 48px}}
@keyframes ping{0%{box-shadow:0 0 0 0 var(--accent-2)}70%,100%{box-shadow:0 0 0 10px transparent}}
@keyframes dash{to{stroke-dashoffset:-13.1}}
@keyframes blink{50%{opacity:0}}

@media (max-width:900px){
  .nav-links{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cards,.steps,.models{grid-template-columns:1fr 1fr}
  .primary-models{grid-template-columns:1fr}
  .start{grid-template-columns:1fr;padding:28px}
}
@media (max-width:560px){
  .cards,.steps,.models{grid-template-columns:1fr}
  .pmodel{padding:26px}
  .bar-row{grid-template-columns:1fr;gap:6px}
  .bar-row em{text-align:left}
  .notify{flex-direction:column}
  .nav-actions .btn-sm{display:none}
}
@media (max-height:640px),(max-width:560px){
  .splash-inner{padding:16px}
  .splash-logo{width:52px;height:52px;margin-bottom:10px}
  .splash-title{font-size:clamp(2.6rem,13vw,4.5rem);margin:6px 0 10px}
  .splash-sub{font-size:.95rem}
  .splash-sub br{display:none}
  .notify{margin-top:14px}
  .notify-msg{min-height:0;margin-top:6px}
  .notify-fine{margin-top:2px}
  .link-btn{margin-top:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;animation-delay:0s!important;transition-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
}