:root{color-scheme:dark light;--bg:#0b0d14;--bg2:#11131c;--fg:#eef0f6;--muted:#9aa1b5;--faint:#8a90a6;--kicker:#c4b5fd;--card:rgba(255,255,255,.035);--card-h:rgba(255,255,255,.06);--border:rgba(255,255,255,.08);--border-h:rgba(167,139,250,.45);--accent:#8b5cf6;--accent2:#c084fc;--accent-soft:rgba(139,92,246,.16);--glow:rgba(124,58,237,.35);--pill-fg:#d8ccff;--shadow:0 10px 40px -12px rgba(0,0,0,.6);--r:16px}
@media (prefers-color-scheme:light){:root{--bg:#fbfaff;--bg2:#f3f1fb;--fg:#12111a;--muted:#545a6e;--faint:#5f6578;--kicker:#6d28d9;--card:rgba(255,255,255,.75);--card-h:#fff;--border:rgba(18,17,26,.09);--border-h:rgba(124,58,237,.4);--accent:#7c3aed;--accent2:#a855f7;--accent-soft:rgba(124,58,237,.1);--glow:rgba(124,58,237,.18);--pill-fg:#5b21b6;--shadow:0 10px 30px -12px rgba(60,40,120,.18)}}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"SF Pro Text","Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:var(--kicker);text-underline-offset:3px}
:focus-visible{outline:2px solid var(--accent2);outline-offset:3px;border-radius:6px}
.skip{position:absolute;left:-999px;top:.5rem;background:var(--accent);color:#fff;padding:.5rem .8rem;border-radius:8px;z-index:10}
.skip:focus{left:.75rem}
.wrap{max-width:1080px;margin:0 auto;padding:0 1.25rem}
/* background glow + grid */
.bgfx{position:fixed;inset:0;z-index:-1;pointer-events:none;overflow:hidden}
.bgfx::before{content:"";position:absolute;left:50%;top:-320px;width:1100px;height:720px;transform:translateX(-50%);background:radial-gradient(closest-side,var(--glow),transparent 70%);filter:blur(10px)}
.bgfx::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 70% 50% at 50% 0%,#000 30%,transparent 75%);-webkit-mask-image:radial-gradient(ellipse 70% 50% at 50% 0%,#000 30%,transparent 75%);opacity:.5}
/* header */
header.site{position:sticky;top:0;z-index:5;backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);background:color-mix(in srgb,var(--bg) 72%,transparent);border-bottom:1px solid var(--border)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;height:60px}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:650;letter-spacing:-.01em;color:var(--fg);text-decoration:none}
.brand img{width:28px;height:28px;border-radius:7px}
nav{display:flex;gap:.25rem}
nav a{color:var(--muted);text-decoration:none;font-size:.94rem;font-weight:500;padding:.4rem .75rem;border-radius:8px;transition:color .2s,background .2s}
nav a:hover{color:var(--fg);background:var(--card-h)}
/* hero */
.hero{padding:clamp(4rem,12vw,7.5rem) 0 clamp(2.5rem,7vw,4.5rem);text-align:center;display:flex;flex-direction:column;align-items:center}
.hero-logo{width:88px;height:88px;border-radius:22px;box-shadow:0 0 0 1px var(--border),0 20px 60px -10px var(--glow),0 0 80px -20px var(--accent);margin-bottom:1.75rem}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;font-size:.82rem;font-weight:550;color:var(--pill-fg);background:var(--accent-soft);border:1px solid var(--border);border-radius:999px;padding:.3rem .8rem;margin-bottom:1.25rem}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent2);box-shadow:0 0 10px var(--accent2)}
.hero h1{font-size:clamp(2.4rem,8vw,4.4rem);line-height:1.04;letter-spacing:-.035em;font-weight:750;margin:0 0 1.1rem;max-width:14ch}
.grad{background:linear-gradient(120deg,var(--fg) 20%,var(--accent2) 60%,var(--accent) 90%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero p{font-size:clamp(1.05rem,2.6vw,1.25rem);color:var(--muted);margin:0 auto 2rem;max-width:36rem}
.actions{display:flex;gap:.75rem;flex-wrap:wrap;justify-content:center}
.btn{display:inline-flex;align-items:center;gap:.45rem;font-weight:600;font-size:.97rem;text-decoration:none;border-radius:11px;padding:.75rem 1.2rem;transition:transform .2s,box-shadow .25s,background .2s,border-color .2s}
.btn-primary{color:#fff;background:linear-gradient(180deg,var(--accent2),var(--accent));box-shadow:0 1px 0 rgba(255,255,255,.25) inset,0 8px 24px -8px var(--accent)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 1px 0 rgba(255,255,255,.25) inset,0 14px 32px -8px var(--accent)}
.btn-ghost{color:var(--fg);background:var(--card);border:1px solid var(--border)}
.btn-ghost:hover{background:var(--card-h);border-color:var(--border-h)}
.btn svg{width:16px;height:16px;transition:transform .2s}
.btn:hover svg{transform:translateX(2px)}
/* section */
.section-head{display:flex;flex-direction:column;gap:.35rem;margin:0 0 1.5rem}
.kicker{font-size:.8rem;font-weight:650;text-transform:uppercase;letter-spacing:.12em;color:var(--kicker)}
.section-head h2{font-size:clamp(1.6rem,4.5vw,2.2rem);letter-spacing:-.025em;line-height:1.15;margin:0}
.section-head p{color:var(--muted);margin:0}
/* cards */
.grid{display:grid;grid-template-columns:1fr;gap:1rem;padding-bottom:5rem}
@media (min-width:680px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:980px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{position:relative;isolation:isolate;display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:1.4rem;transition:transform .3s cubic-bezier(.2,.7,.2,1),border-color .3s,background .3s,box-shadow .3s}
.card::before{content:"";position:absolute;inset:-1px;z-index:-1;border-radius:inherit;background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),var(--accent-soft),transparent 45%);opacity:0;transition:opacity .3s}
.card:hover{transform:translateY(-3px);border-color:var(--border-h);background:var(--card-h);box-shadow:var(--shadow)}
.card:hover::before{opacity:1}
.icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:1rem;color:#fff;background:linear-gradient(140deg,var(--c1),var(--c2));box-shadow:0 0 0 1px rgba(255,255,255,.12) inset,0 8px 20px -8px var(--c2)}
.icon svg{width:22px;height:22px}
.card h3{font-size:1.08rem;letter-spacing:-.01em;margin:0}
.aka{font-size:.8rem;color:var(--faint);margin:.1rem 0 0}
.card p.desc{color:var(--muted);margin:.7rem 0 1.1rem;font-size:.95rem}
.meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:.5rem;font-size:.82rem;color:var(--faint);padding-top:.9rem;border-top:1px solid var(--border)}
.pill{font-size:.75rem;font-weight:600;color:var(--pill-fg);background:var(--accent-soft);border:1px solid var(--border);border-radius:999px;padding:.12rem .6rem;white-space:nowrap}
/* principles */
.principles{display:grid;gap:1rem;grid-template-columns:1fr;padding-bottom:5rem}
@media (min-width:680px){.principles{grid-template-columns:repeat(3,1fr)}}
.principle{padding:1.2rem 1.3rem;border-radius:var(--r);border:1px solid var(--border);background:linear-gradient(180deg,var(--card),transparent)}
.principle h3{margin:0 0 .35rem;font-size:1rem}
.principle p{margin:0;color:var(--muted);font-size:.93rem}
/* cta */
.cta{position:relative;overflow:hidden;text-align:center;border:1px solid var(--border);border-radius:24px;padding:clamp(2.5rem,7vw,4rem) 1.5rem;margin-bottom:5rem;background:radial-gradient(600px 240px at 50% 0%,var(--accent-soft),transparent 70%),var(--card)}
.cta h2{font-size:clamp(1.6rem,4.5vw,2.3rem);letter-spacing:-.025em;margin:0 0 .6rem}
.cta p{color:var(--muted);margin:0 auto 1.6rem;max-width:32rem}
/* tip page */
.tip-hero{padding:clamp(3.5rem,10vw,6rem) 0 2.5rem;text-align:center}
.tip-hero h1{font-size:clamp(2.1rem,7vw,3.6rem);letter-spacing:-.035em;line-height:1.06;margin:0 0 1rem}
.tip-hero p{color:var(--muted);font-size:1.15rem;margin:0 auto;max-width:34rem}
.amount{display:inline-flex;align-items:baseline;gap:.35rem;margin:1.75rem 0 0;padding:.55rem 1.1rem;border-radius:14px;border:1px solid var(--border);background:var(--card);color:var(--muted);font-size:.95rem}
.amount strong{font-size:1.6rem;color:var(--fg);letter-spacing:-.02em}
.options{display:grid;gap:1rem;grid-template-columns:1fr;max-width:820px;margin:0 auto;padding-bottom:5rem}
@media (min-width:680px){.options{grid-template-columns:1fr 1fr}}
.rank{font-size:.75rem;font-weight:650;text-transform:uppercase;letter-spacing:.1em;color:var(--faint)}
/* footer */
footer.site{border-top:1px solid var(--border);color:var(--faint);font-size:.88rem}
footer.site .wrap{display:flex;flex-wrap:wrap;gap:.75rem 1.5rem;justify-content:space-between;align-items:center;padding-top:1.5rem;padding-bottom:2.25rem}
footer.site a{color:var(--muted);text-decoration:none}
footer.site a:hover{color:var(--fg)}
/* 404 */
.notfound{padding:clamp(5rem,15vw,9rem) 0;text-align:center}
.notfound .code{font-size:clamp(4.5rem,18vw,8rem);font-weight:800;letter-spacing:-.05em;line-height:1;margin:0}
.notfound p{color:var(--muted);margin:1rem 0 2rem}
/* reveal (only when JS is on) */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1);transition-delay:var(--d,0ms)}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}.js .reveal{opacity:1;transform:none}.card:hover,.btn:hover{transform:none}}
@keyframes rvfb{to{opacity:1;transform:none}}
.js .reveal:not(.in){animation:rvfb .01s 3s forwards}
.notfound .code.grad{background:linear-gradient(120deg,var(--accent2),var(--accent));-webkit-background-clip:text;background-clip:text}
/* ---- round 2 ---- */
.card h3 a.stretch{color:inherit;text-decoration:none}
.card h3 a.stretch::after{content:"";position:absolute;inset:0;border-radius:inherit;z-index:1}
.card h3 a.stretch:focus-visible{outline:none}
.card:has(a.stretch:focus-visible){outline:2px solid var(--accent2);outline-offset:3px}
.thumb{display:block;margin:.85rem 0 0;border-radius:10px;overflow:hidden;border:1px solid var(--border)}
.thumb img{display:block;width:100%;height:auto}
.pill-dev{color:#065f46;background:rgba(16,185,129,.16)}
@media (prefers-color-scheme:dark){.pill-dev{color:#6ee7b7;background:rgba(16,185,129,.14)}}
.feature{padding-bottom:4rem}
.shot{margin:0}
.shot picture,.shot img{display:block;width:100%;height:auto;border-radius:14px}
.shot picture{border:1px solid var(--border);overflow:hidden;border-radius:14px;box-shadow:var(--shadow)}
.shot figcaption{color:var(--muted);font-size:.9rem;margin-top:.75rem}
.btn svg{width:16px;height:16px}
.btn:hover svg[fill]{transform:none}
kbd{font:600 .8em ui-monospace,SFMono-Regular,Menlo,monospace;padding:.08rem .38rem;border:1px solid var(--border);border-bottom-width:2px;border-radius:6px;background:var(--card)}
code{font:.9em ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--accent-soft);padding:.05rem .35rem;border-radius:5px}
/* pages */
.page,.detail{padding-top:clamp(2.5rem,7vw,4rem);padding-bottom:4rem;max-width:820px}
.page-head{margin-bottom:2.25rem}
.page-head h1,.detail-head h1{font-size:clamp(2rem,6vw,3rem);letter-spacing:-.035em;line-height:1.08;margin:.35rem 0 .6rem}
.page-head p{color:var(--muted);margin:0;font-size:1.05rem}
.crumbs{display:flex;gap:.5rem;font-size:.88rem;color:var(--faint);margin-bottom:1.5rem}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{color:var(--fg)}
.detail-head{display:flex;gap:1.1rem;align-items:flex-start;margin-bottom:1.75rem}
.detail-head h1{margin:0}
.detail-head .aka{margin:.25rem 0 0}
.tagline{color:var(--muted);font-size:1.15rem;margin:.6rem 0 0}
.icon-lg{width:60px;height:60px;border-radius:16px;flex:none;margin:0}
.icon-lg svg{width:28px;height:28px}
.facts{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--r);overflow:hidden;margin:0 0 2.5rem}
@media (min-width:720px){.facts{grid-template-columns:repeat(4,1fr)}}
.facts div{background:var(--bg2);padding:1rem 1.1rem}
.facts dt{font-size:.75rem;font-weight:650;text-transform:uppercase;letter-spacing:.1em;color:var(--faint);margin-bottom:.3rem}
.facts dd{margin:0;font-weight:550;font-size:.95rem}
.facts .note{display:block;font-weight:400;font-size:.8rem;color:var(--faint);margin-top:.2rem}
.block{margin:0 0 2.25rem}
.block h2,.prose h2{font-size:1.25rem;letter-spacing:-.015em;margin:0 0 .75rem}
.block p,.prose p{color:var(--muted);margin:0 0 .75rem}
.prose section{margin-bottom:2.25rem}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}
.ticks li{position:relative;padding-left:1.6rem;color:var(--muted)}
.ticks li strong{color:var(--fg)}
.ticks li::before{content:"";position:absolute;left:.15rem;top:.62em;width:.55rem;height:.55rem;border-radius:3px;background:linear-gradient(140deg,var(--accent2),var(--accent));box-shadow:0 0 10px var(--glow)}
.detail .cta{margin:3rem 0 0}
/* build log */
.log{list-style:none;margin:0;padding:0;position:relative}
.log::before{content:"";position:absolute;left:5px;top:.5rem;bottom:.5rem;width:1px;background:var(--border)}
.entry{position:relative;display:grid;gap:.25rem;padding:0 0 2rem 1.75rem}
.entry::before{content:"";position:absolute;left:0;top:.45rem;width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft),0 0 14px var(--accent)}
.entry time{font:600 .8rem ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--kicker);letter-spacing:.02em}
.entry h2{font-size:1.12rem;letter-spacing:-.01em;margin:0 0 .35rem}
.entry p{margin:0;color:var(--muted)}
.entry .rel{margin-top:.4rem;font-size:.9rem}
/* footer nav */
footer.site nav.foot{display:flex;flex-wrap:wrap;gap:.35rem 1.1rem}
footer.site nav.foot a{display:inline-flex;align-items:center;gap:.35rem}
footer.site nav.foot svg{width:14px;height:14px}
.h3{font-size:1.08rem;letter-spacing:-.01em;margin:0}
p.rank{margin:0}
nav a,.brand{white-space:nowrap}
@media (max-width:480px){nav a{padding:.4rem .5rem;font-size:.9rem}.brand-name{font-size:.95rem}}
@media (max-width:370px){.brand-name{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}}
.details{border-top:1px solid var(--border);padding-top:1.5rem}
.details h2{font-size:1rem;color:var(--muted)}
.ticks.small li{font-size:.9rem}
/* r4: screenshot cards */
.grid-shots{padding-bottom:2.5rem}
.card-shot{padding:0;overflow:hidden}
.card-shot .thumb{margin:0;border:0;border-bottom:1px solid var(--border);border-radius:0;aspect-ratio:16/11;background:#111318}
.card-shot .thumb img{width:100%;height:100%;object-fit:cover;object-position:top left}
.card-body{padding:1.1rem 1.3rem 1.2rem;display:flex;flex-direction:column;flex:1}
.card-body .desc{margin:.45rem 0 1rem}
.card-body .meta{margin-top:auto}
.sub-h{font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;color:var(--kicker);margin:0 0 1rem;font-weight:650}
.grid-mini{gap:.75rem}
.card-mini{flex-direction:row;align-items:flex-start;gap:1rem;padding:1rem 1.1rem}
.card-mini .icon{flex:none;margin:0}
.card-mini>div:nth-child(2){flex:1;min-width:0}
.card-mini .desc{margin:.2rem 0 0;font-size:.9rem}
.card-mini .pill{display:inline-block;margin-top:.55rem}
.detail .shot{margin:0 0 2.5rem}
details.details summary{cursor:pointer;font-weight:650;color:var(--muted);list-style:none}
details.details summary::-webkit-details-marker{display:none}
details.details summary::before{content:"+ ";color:var(--accent2)}
details.details[open] summary::before{content:"– "}
details.details>p{color:var(--muted);margin:.8rem 0 .4rem}