:root{
  --bg:#070b11; --panel:#0e1620; --line:rgba(255,255,255,.08);
  --ink:#e9eef6; --muted:#8793a6; --red:#ff4655; --red-d:#d32f2f; --plate:#e8efb4;
  --font:"Chakra Petch","Segoe UI",system-ui,-apple-system,sans-serif;
  color-scheme:dark;
}
@media (prefers-color-scheme:light){:root{}} /* the site is dark by design */
*{box-sizing:border-box;margin:0}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font:400 16px/1.5 var(--font);-webkit-font-smoothing:antialiased;overflow:hidden}
body.scroll{overflow:auto}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--red);outline-offset:3px;border-radius:4px}
button{font:inherit;color:inherit;cursor:pointer;background:none;border:0}

/* ambient background: blurred card art, grain, vignette */
.bg{position:fixed;inset:0;z-index:-2;overflow:hidden;background:radial-gradient(120% 90% at 70% 40%,#10203a 0%,var(--bg) 70%)}
.bg img{position:absolute;right:-8vw;top:-20vh;height:150vh;width:auto;filter:blur(90px) saturate(1.3);opacity:.7;transform:scale(1.2);transition:opacity .7s ease;animation:drift 40s ease-in-out infinite alternate}
.bg img.off{opacity:0}
@keyframes drift{to{transform:scale(1.3) translate(-4vw,3vh)}}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.18;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.bg::after{content:"";position:absolute;inset:0;background:radial-gradient(90% 80% at 50% 50%,transparent 40%,rgba(3,5,9,.75))}

/* shell */
.page{height:100dvh;display:flex;flex-direction:column;padding:clamp(14px,2.5vw,28px) clamp(16px,4vw,56px)}
header{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:.02em}
.brand img{width:28px;height:28px;border-radius:7px}
nav{display:flex;align-items:center;gap:6px}
nav a,nav button{padding:8px 14px;border-radius:999px;color:var(--muted);font-size:14px;transition:color .2s,background .2s;display:inline-flex;align-items:center;gap:8px}
nav a:hover,nav button:hover,nav [aria-current]{color:var(--ink);background:rgba(255,255,255,.06)}
nav svg{width:16px;height:16px}
.snd[aria-pressed=true] svg .x{display:none}

main{flex:1;min-height:0;display:grid;grid-template-columns:minmax(300px,440px) minmax(0,1fr);gap:clamp(24px,5vw,80px);align-items:center}
h1{font-size:clamp(34px,4.6vw,60px);line-height:1.02;font-weight:600;letter-spacing:-.02em;text-wrap:balance}
.lead{margin-top:18px;color:var(--muted);max-width:38ch;font-size:clamp(15px,1.3vw,17px)}
.cta{margin-top:clamp(20px,4vh,36px);display:flex;flex-wrap:wrap;align-items:center;gap:12px 18px}
.btn{display:inline-flex;flex-direction:column;align-items:flex-start;padding:14px 26px;border-radius:10px;background:linear-gradient(180deg,#ff5a68,var(--red-d));color:#fff;font-weight:700;letter-spacing:.04em;box-shadow:0 10px 40px -10px rgba(255,70,85,.6),inset 0 1px 0 rgba(255,255,255,.25);transition:transform .15s,box-shadow .2s}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 48px -8px rgba(255,70,85,.75),inset 0 1px 0 rgba(255,255,255,.25)}
.btn:active{transform:none}
.btn small{font-weight:400;opacity:.85;font-size:12px;letter-spacing:0}
.link{color:var(--muted);font-size:14px;border-bottom:1px solid var(--line);padding-bottom:1px;transition:color .2s}
.link:hover{color:var(--ink)}
.note{margin-top:18px;font-size:13px;color:var(--muted);max-width:40ch}
footer{font-size:12px;color:#5d687a;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

/* demo window */
.stage{min-width:0;display:flex;flex-direction:column;align-items:center;gap:12px}
.win{width:min(100%,660px);height:min(62dvh,470px);display:flex;flex-direction:column;border-radius:12px;overflow:hidden;
  background:rgba(10,16,23,.62);backdrop-filter:blur(28px) saturate(1.2);-webkit-backdrop-filter:blur(28px) saturate(1.2);
  border:1px solid var(--line);box-shadow:0 40px 100px -30px rgba(0,0,0,.8),inset 0 1px 0 rgba(255,255,255,.06)}
.tb{display:flex;align-items:center;justify-content:space-between;height:38px;padding:0 12px;border-bottom:1px solid rgba(255,70,85,.45);background:rgba(7,11,17,.6);font-size:12px}
.tb .t{display:flex;align-items:center;gap:8px;font-weight:700;letter-spacing:.12em;font-size:11px}
.tb .t img{width:16px;height:16px;border-radius:4px}
.tabs{display:flex;height:100%}
.tabs button{padding:0 16px;font-size:11px;font-weight:700;letter-spacing:.1em;color:#6d7889;border-bottom:2px solid transparent;text-transform:uppercase}
.tabs button[aria-selected=true]{color:#fff;border-color:var(--red);background:rgba(255,255,255,.04)}
.tabs button:hover{color:#fff}
.dots{display:flex;gap:14px;color:#5d687a;font-size:12px}
.view{flex:1;min-height:0;padding:14px 18px 10px;display:none;flex-direction:column}
.view.on{display:flex}
.vh{display:flex;align-items:center;justify-content:space-between;padding-bottom:10px;border-bottom:1px solid var(--line)}
.vh h2{font-size:16px;font-weight:700;letter-spacing:.06em}
.vh h2 span{font-size:10px;background:rgba(255,255,255,.08);padding:2px 7px;border-radius:4px;margin-left:8px;vertical-align:middle}
.add{background:var(--red);color:#fff;font-size:10px;font-weight:700;letter-spacing:.1em;padding:8px 14px;clip-path:polygon(0 0,100% 0,100% 70%,92% 100%,0 100%);transition:filter .15s}
.add:hover{filter:brightness(1.12)}.add:disabled{opacity:.4;cursor:not-allowed}
.row{flex:1;min-height:0;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;padding-top:14px}
.pc{display:flex;flex-direction:column;gap:8px;min-height:0;animation:in .35s ease both}
@keyframes in{from{opacity:0;transform:scale(.96)}}
.art{position:relative;flex:1;min-height:0;border-radius:4px 4px 0 0;overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% 90%,50% 100%,0 90%);border:0;background:#0b1a22 center/cover no-repeat;transition:filter .3s,transform .3s}
.art::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(5,10,15,.88));}
.pc.run .art{filter:drop-shadow(0 0 12px var(--red))}
.meta{position:absolute;left:0;right:0;bottom:12%;z-index:1;text-align:center;font-size:11px;line-height:1.35}
.meta b{display:block;font-size:10px;letter-spacing:.1em}
.plate{display:block;background:var(--plate);color:#1b1f10;font-weight:600;font-size:11px;padding:3px 2px;margin:2px 0 4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rk{font-size:10.5px;color:#d6dde8}.wl{font-size:10px;font-weight:700}.wl i{font-style:normal;color:#42d392}.wl u{text-decoration:none;color:#ff6b78;margin-left:6px}
.go{font-weight:700;letter-spacing:.18em;font-size:12px;padding:9px 0;border-radius:3px;background:linear-gradient(180deg,#ff5a68,var(--red-d));color:#fff;box-shadow:0 6px 20px -8px rgba(255,70,85,.8);transition:filter .15s,opacity .2s}
.go:hover{filter:brightness(1.1)}
.go:disabled{cursor:default;filter:none}
.pc.run .go{background:rgba(66,211,146,.15);color:#42d392;box-shadow:inset 0 0 0 1px rgba(66,211,146,.5)}
.go.busy{background:rgba(255,255,255,.08);box-shadow:none;color:#b8c2d1}
.status{height:30px;display:flex;align-items:center;gap:8px;padding:0 18px;font-size:12px;color:var(--muted);border-top:1px solid var(--line)}
.status i{width:6px;height:6px;border-radius:50%;background:#42d392;flex:none}
.status.busy i{background:var(--red);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.3}}

/* settings view */
.set{display:flex;flex-direction:column;gap:2px;padding-top:6px;overflow:auto}
.set label{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:12px 4px;border-bottom:1px solid var(--line);font-size:13px;cursor:pointer}
.set label span small{display:block;color:var(--muted);font-size:11.5px}
.sw{appearance:none;width:34px;height:20px;border-radius:99px;background:#27313f;position:relative;flex:none;transition:background .2s;cursor:pointer}
.sw::after{content:"";position:absolute;top:3px;left:3px;width:14px;height:14px;border-radius:50%;background:#fff;transition:transform .2s}
.sw:checked{background:var(--red)}.sw:checked::after{transform:translateX(14px)}

/* modal */
.modal{position:absolute;inset:0;display:none;align-items:center;justify-content:center;background:rgba(4,7,11,.55);backdrop-filter:blur(8px);z-index:5}
.modal.on{display:flex}
.win{position:relative}
.dlg{width:min(86%,340px);background:#0e1620;border:1px solid var(--line);border-radius:10px;padding:20px;box-shadow:0 30px 60px -20px #000;animation:in .25s ease both}
.dlg h3{font-size:15px;margin-bottom:6px}.dlg p{font-size:13px;color:var(--muted)}
.dlg .ac{display:flex;gap:8px;justify-content:flex-end;margin-top:18px}
.dlg .ac button{padding:8px 14px;border-radius:6px;font-size:12px;font-weight:600;background:rgba(255,255,255,.07)}
.dlg .ac .p{background:var(--red);color:#fff}
.tip{font-size:12.5px;color:#6d7889;text-align:center}

/* changelog */
.doc{max-width:720px;margin:0 auto;width:100%;padding:clamp(32px,8vh,80px) 0 80px}
.doc h1{font-size:clamp(30px,4vw,44px)}
.doc .lead{max-width:50ch}
.rel{display:grid;grid-template-columns:120px 1fr;gap:8px 28px;padding:28px 0;border-top:1px solid var(--line);margin-top:28px}
.rel:first-of-type{margin-top:40px}
.rel .v{font-weight:700;font-size:20px}.rel .d{color:var(--muted);font-size:13px}
.rel .v em{font-style:normal;font-size:11px;background:var(--red);color:#fff;padding:2px 7px;border-radius:99px;margin-left:8px;vertical-align:2px}
.rel ul{list-style:none;padding:0;display:grid;gap:8px;color:#c4ccd9;font-size:15px}
.rel li::before{content:"";display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--red);margin-right:12px;vertical-align:3px}

@media (max-width:900px){
  main{grid-template-columns:1fr;gap:18px;align-content:center;text-align:center}
  .lead,.note{margin-inline:auto}.cta{justify-content:center}
  h1{font-size:clamp(28px,7vw,40px)}.lead{margin-top:10px}.note{display:none}
  .win{height:min(48dvh,420px)}.tip{display:none}
  nav a,nav button{padding:8px 10px}.snd b{display:none}
}
@media (max-width:560px){.row{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:44%;overflow-x:auto;padding-bottom:4px}nav a span{display:none}nav{gap:0}.brand{font-size:15px}.tabs button{padding:0 10px}.rel{grid-template-columns:1fr}footer span:last-child{display:none}}
@media (max-height:640px){.lead{display:none}.win{height:56dvh}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}