:root {
  --night: #0b1020;
  --night-2: #121a30;
  --panel: #161f38;
  --line: rgba(244, 241, 232, 0.1);
  --cream: #f4f1e8;
  --muted: #a7acbf;
  --faint: #6b7290;
  --teal: #5eead4;
  --teal-dim: rgba(94, 234, 212, 0.14);
  --amber: #fbbf5a;
  --red: #ff8a7a;
  --red-bg: rgba(255, 138, 122, 0.12);
  --green: #8be28f;
  --blue: #8ab8ff;
  --violet: #c4a8ff;
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--night);
  color: var(--cream);
  font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Sukhumvit Set", sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--teal); }
code, .mono { font-family: var(--mono); }
code { font-size: 0.88em; background: rgba(244, 241, 232, 0.07); padding: 1px 6px; border-radius: 5px; }

.nav { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; padding: 14px 28px; background: rgba(11, 16, 32, 0.78); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; font: 800 21px var(--display); color: var(--cream); text-decoration: none; }
.nav nav { display: flex; gap: 22px; }
.nav nav a { color: var(--muted); text-decoration: none; font: 600 14px var(--mono); }
.nav nav a:hover { color: var(--cream); }

section { max-width: 1060px; margin: 0 auto; padding: 90px 24px; }
h1, h2, h3 { font-family: var(--display); margin: 0; }
h2 { font-size: clamp(32px, 5vw, 50px); font-weight: 800; letter-spacing: -0.02em; line-height: 1.05; }
.label { color: var(--teal); font-size: 13px; margin-bottom: 10px; }
.sub { color: var(--muted); max-width: 640px; margin: 14px 0 34px; }

/* hero */
.hero { position: relative; text-align: center; padding-top: 70px; overflow: hidden; max-width: none; }
.stars { position: absolute; inset: 0; background-image: radial-gradient(1.5px 1.5px at 12% 22%, #fff9 50%, transparent), radial-gradient(1px 1px at 78% 14%, #fff8 50%, transparent), radial-gradient(1.5px 1.5px at 62% 38%, #fff6 50%, transparent), radial-gradient(1px 1px at 30% 60%, #fff5 50%, transparent), radial-gradient(1px 1px at 88% 52%, #fff7 50%, transparent), radial-gradient(1.5px 1.5px at 6% 70%, #fff5 50%, transparent), radial-gradient(1px 1px at 46% 10%, #fff8 50%, transparent); pointer-events: none; }
.bat-wrap { position: relative; width: 260px; height: 170px; margin: 0 auto 26px; display: grid; place-items: center; }
.bat { width: 230px; fill: var(--cream); position: relative; z-index: 2; animation: hover 4s ease-in-out infinite; }
.bat .eye { fill: var(--night); }
.ring { position: absolute; left: 50%; top: 50%; width: 120px; height: 120px; margin: -60px 0 0 -60px; border: 3px solid var(--teal); border-radius: 50%; opacity: 0; animation: ping 3s cubic-bezier(0.2, 0.6, 0.3, 1) infinite; }
.ring.r2 { animation-delay: 1s; }
.ring.r3 { animation-delay: 2s; }
@keyframes ping { 0% { transform: scale(0.6); opacity: 0.8; } 100% { transform: scale(3.2); opacity: 0; } }
@keyframes hover { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
@media (prefers-reduced-motion: reduce) { .ring, .bat { animation: none; } .ring { opacity: 0.25; } }
.hero h1 { font-size: clamp(40px, 7.4vw, 86px); font-weight: 800; letter-spacing: -0.035em; line-height: 1; max-width: 980px; margin: 0 auto; position: relative; }
.u { background: linear-gradient(transparent 82%, var(--teal) 82%, var(--teal) 92%, transparent 92%); }
.lede { color: var(--muted); max-width: 680px; margin: 22px auto 30px; font-size: 18px; position: relative; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; position: relative; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 13px 24px; border-radius: 999px; border: 2px solid var(--cream); color: var(--cream); text-decoration: none; font: 700 17px var(--display); transition: transform 0.15s; }
.btn:hover { transform: translateY(-2px); }
.btn.primary { background: var(--teal); border-color: var(--teal); color: var(--night); }
.btn .dot { width: 18px; height: 18px; border-radius: 50%; border: 4px solid var(--night); }
.meta { color: var(--faint); font-size: 13px; margin-top: 18px; position: relative; }

/* demo */
.demo { position: relative; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); overflow: hidden; box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45); }
.win-bar { display: flex; align-items: center; gap: 8px; padding: 11px 14px; background: var(--night-2); border-bottom: 1px solid var(--line); font-size: 14px; }
.win-bar span { width: 11px; height: 11px; border-radius: 50%; background: #ff6b5e; }
.win-bar span:nth-child(2) { background: #ffbd2e; }
.win-bar span:nth-child(3) { background: #28c840; margin-right: 10px; }
.win-bar em { font-style: normal; font-size: 11px; color: var(--muted); background: rgba(244, 241, 232, 0.07); padding: 2px 8px; border-radius: 99px; }
.win-bar i { margin-left: auto; font-style: normal; font-size: 12px; color: var(--faint); }
.win-bar i.full { color: var(--teal); }
.win { display: grid; grid-template-columns: 190px minmax(0, 1fr); min-height: 360px; }
.win aside { background: var(--night-2); border-right: 1px solid var(--line); padding: 10px 6px; }
.grp { color: var(--faint); font-size: 11px; padding: 8px 10px 4px; }
.rt { display: flex; width: 100%; align-items: center; gap: 8px; background: none; border: 0; color: var(--cream); font: 13px var(--mono); padding: 6px 10px; border-radius: 7px; cursor: pointer; text-align: left; }
.rt:hover { background: rgba(244, 241, 232, 0.06); }
.rt.on { background: var(--teal-dim); }
.rt b { font-size: 10.5px; width: 36px; }
.rt i { margin-left: auto; font-style: normal; font-size: 11px; }
.GET { color: var(--green); } .POST { color: var(--amber); }
.pane { min-width: 0; display: flex; flex-direction: column; }
.url { display: flex; align-items: center; gap: 10px; padding: 12px 14px 6px; }
.url b { font: 700 12px var(--mono); }
.url code { flex: 1; min-width: 0; background: var(--night); border: 1px solid var(--line); padding: 7px 10px; border-radius: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.url button { background: var(--teal); color: var(--night); border: 0; border-radius: 8px; padding: 8px 18px; font: 700 14px var(--display); cursor: pointer; }
.url button:disabled { opacity: 0.6; }
.from { color: var(--faint); font-size: 12px; padding: 0 14px 10px; border-bottom: 1px solid var(--line); }
.resp { padding: 14px; font-size: 14px; }
.hint { color: var(--muted); padding: 40px 0; text-align: center; }
.status { font: 700 14px var(--mono); margin-bottom: 8px; }
.status.bad { color: var(--red); } .status.ok { color: var(--green); }
.status small { color: var(--faint); font-weight: 400; margin-left: 8px; }
.note { color: var(--teal); font: 12.5px var(--mono); }
.card { border: 1px solid rgba(255, 138, 122, 0.35); border-radius: 10px; margin: 10px 0; overflow: hidden; }
.card h4 { margin: 0; padding: 8px 12px; background: var(--red-bg); color: var(--red); font: 700 13.5px var(--mono); }
.snip { margin: 10px 12px; background: var(--night); border-radius: 8px; padding: 6px 0; font: 12px/1.7 var(--mono); overflow-x: auto; }
.snip div { padding: 0 10px; white-space: pre; }
.snip .hl { background: var(--red-bg); }
.snip .n { color: var(--faint); display: inline-block; width: 22px; text-align: right; margin-right: 12px; }
.card ul { margin: 6px 0 10px; padding-left: 30px; color: var(--muted); font-size: 13.5px; }
.card .fix { margin: 0 12px 12px; background: none; border: 1.5px solid var(--cream); color: var(--cream); border-radius: 8px; padding: 6px 12px; font: 600 13px var(--display); cursor: pointer; }
.card .fix:hover { background: rgba(244, 241, 232, 0.08); }
pre.json { margin: 8px 0 0; font: 12.5px/1.6 var(--mono); color: var(--cream); white-space: pre-wrap; }
.say { display: flex; align-items: center; gap: 12px; padding: 12px 16px; border-top: 1px solid var(--line); background: var(--night-2); }
.say img { width: 34px; height: 34px; flex: none; }
.bubble { background: var(--cream); color: var(--night); font-size: 14.5px; padding: 8px 14px; border-radius: 4px 14px 14px 14px; }
.reset { margin-left: auto; flex: none; background: none; border: 0; color: var(--faint); cursor: pointer; font-size: 12px; }
.reset:hover { color: var(--cream); }

/* features */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 16px; margin-top: 36px; }
.grid article { border: 1px solid var(--line); border-radius: 14px; padding: 22px; background: linear-gradient(180deg, var(--panel), transparent); }
.grid h3 { font-size: 21px; margin-bottom: 8px; }
.grid p { margin: 0; color: var(--muted); font-size: 15.5px; }

/* install */
.box { border: 1px solid var(--line); border-radius: 14px; padding: 24px; margin-bottom: 16px; background: var(--panel); }
.box h3 { font-size: 22px; display: flex; align-items: center; gap: 10px; }
.box p { color: var(--muted); }
.tag { font: 600 11px var(--mono); color: var(--teal); background: var(--teal-dim); padding: 3px 9px; border-radius: 99px; }
.cmd { display: flex; align-items: center; gap: 10px; background: var(--night); border: 1px solid var(--line); border-radius: 10px; padding: 12px 12px 12px 16px; }
.cmd code { flex: 1; background: none; padding: 0; font-size: 14px; overflow-x: auto; white-space: nowrap; color: var(--teal); }
.copy { background: var(--cream); color: var(--night); border: 0; border-radius: 7px; padding: 6px 12px; font: 700 13px var(--display); cursor: pointer; }
.small { font-size: 14.5px; }
footer { text-align: center; color: var(--faint); font-size: 13px; padding: 40px 0 60px; }
footer a { color: var(--muted); }

@media (max-width: 720px) {
  .nav { padding: 12px 16px; }
  .nav nav { gap: 14px; }
  section { padding: 64px 16px; }
  .win { grid-template-columns: 1fr; }
  .win aside { display: flex; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--line); }
  .win aside .grp { display: none; }
  .win aside .rt { width: auto; }
  .win-bar { flex-wrap: wrap; }
  .win-bar b { white-space: nowrap; }
  .win-bar i { width: 100%; margin: 2px 0 0; }
  .say { flex-wrap: wrap; }
}