:root {
  color-scheme: dark;
  --bg: #070b12;
  --panel: #0e1623;
  --panel-2: #131e2e;
  --line: #23354a;
  --text: #eef5ff;
  --muted: #92a2b7;
  --cyan: #55d7e5;
  --blue: #388df2;
  --green: #4bd596;
  --danger: #ff6b78;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 0%, rgba(56,141,242,.17), transparent 34rem),
    radial-gradient(circle at 85% 10%, rgba(85,215,229,.12), transparent 30rem),
    var(--bg);
  font: 15px/1.55 Inter, ui-sans-serif, system-ui, sans-serif;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
.shell { width: min(1180px, calc(100% - 40px)); margin: auto; }
.nav { height: 74px; display:flex; align-items:center; justify-content:space-between; }
.brand { display:flex; gap:11px; align-items:center; font-weight:800; letter-spacing:.02em; }
.mark { display:grid; place-items:center; width:38px; height:38px; border-radius:12px; background:linear-gradient(135deg,var(--cyan),var(--blue)); color:#06101c; }
.button { border:1px solid var(--line); border-radius:10px; padding:10px 15px; color:var(--text); background:var(--panel-2); cursor:pointer; font-weight:700; }
.button.primary { background:linear-gradient(135deg,var(--blue),#4ab8f5); border:0; }
.button.danger { color:#ffdce0; border-color:#71313b; background:#2b151b; }
.dev-link { color:#7fe9ff; border-color:#246d7c; background:#0b2630; text-decoration:none; }
.hero { min-height:560px; display:grid; grid-template-columns:1.15fr .85fr; gap:56px; align-items:center; }
.eyebrow { color:var(--cyan); font-size:12px; font-weight:800; letter-spacing:.18em; text-transform:uppercase; }
h1 { font-size:clamp(42px,6vw,72px); line-height:1.02; margin:14px 0 20px; letter-spacing:-.04em; }
h2,h3 { margin:0 0 12px; }
.lead { color:var(--muted); font-size:19px; max-width:650px; }
.actions { display:flex; gap:12px; margin-top:28px; }
.preview,.card { border:1px solid var(--line); border-radius:18px; background:rgba(14,22,35,.86); box-shadow:0 24px 70px rgba(0,0,0,.28); }
.preview { padding:18px; transform:rotate(1deg); }
.preview-row { margin:10px 0; padding:14px; border-radius:12px; background:var(--panel-2); display:flex; justify-content:space-between; }
.features { padding:25px 0 90px; display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.card { padding:22px; }
.muted { color:var(--muted); }
.login-wrap { min-height:100vh; display:grid; place-items:center; }
.login { width:min(440px,calc(100% - 32px)); padding:30px; }
.field { display:grid; gap:7px; margin:14px 0; }
input,select,textarea { width:100%; color:var(--text); background:#080f18; border:1px solid var(--line); border-radius:9px; padding:11px 12px; }
textarea { min-height:100px; resize:vertical; }
.error { color:var(--danger); min-height:24px; }
.admin { display:grid; grid-template-columns:240px 1fr; min-height:100vh; }
.sidebar { padding:24px 18px; border-right:1px solid var(--line); background:rgba(7,11,18,.88); }
.sidebar .brand { margin-bottom:30px; }
.menu { display:grid; gap:7px; }
.menu button { text-align:left; border:0; background:transparent; color:var(--muted); padding:11px 13px; border-radius:9px; cursor:pointer; }
.menu button.active { background:var(--panel-2); color:var(--text); }
.main { padding:30px; overflow:auto; }
.top { display:flex; justify-content:space-between; align-items:center; margin-bottom:24px; }
.grid { display:grid; grid-template-columns:repeat(3,1fr); gap:14px; }
.stat strong { display:block; font-size:28px; color:var(--cyan); }
.workspace { display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:16px; }
.stack { display:grid; gap:12px; }
.row { display:flex; gap:10px; align-items:center; }
.row > * { flex:1; }
.list { display:grid; gap:9px; }
.list-item { padding:13px; border:1px solid var(--line); background:#09111b; border-radius:10px; }
.pill { padding:4px 8px; border-radius:999px; background:#173044; color:var(--cyan); font-size:12px; }
.hidden { display:none !important; }
@media (max-width:850px) {
  .hero,.features,.workspace,.grid { grid-template-columns:1fr; }
  .admin { grid-template-columns:1fr; }
  .sidebar { border-right:0; border-bottom:1px solid var(--line); }
  .menu { grid-template-columns:repeat(3,1fr); }
}