:root {
  --bg: #0b1020;
  --bg-alt: #101731;
  --card: #151d3a;
  --border: #26305a;
  --text: #e8ecf8;
  --muted: #9aa5c9;
  --accent: #22d3a5;
  --accent-2: #4f8cff;
  --danger: #ff5d6c;
  --warn: #ffc857;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
}
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  background: #0a0f22;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: .9em;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 520px; margin: 40px auto; padding: 0 20px; }

.topbar { background: var(--bg-alt); border-bottom: 1px solid var(--border); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { font-weight: 800; font-size: 1.25rem; letter-spacing: 3px; color: var(--text); }
.brand:hover { text-decoration: none; color: var(--accent); }
.nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }

main { min-height: 62vh; padding: 32px 0; }
h1 { font-size: 1.8rem; margin: 0 0 8px; }
h2 { font-size: 1.25rem; margin: 28px 0 10px; }
h3 { margin: 0 0 6px; }
.mt { margin-top: 32px; }
.muted { color: var(--muted); }
.center { text-align: center; }
.lead { font-size: 1.1rem; color: var(--muted); }

.hero { padding: 72px 0 56px; text-align: center; background:
  radial-gradient(1200px 400px at 50% -100px, #16224d 0%, transparent 60%); }
.eyebrow { text-transform: uppercase; letter-spacing: 2px; font-size: .8rem; color: var(--accent); }
.hero h1 { font-size: 2.6rem; line-height: 1.15; }
.hero-actions { margin-top: 26px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 9px 18px; border-radius: 8px;
  border: 1px solid transparent; cursor: pointer; font-size: .95rem;
  background: var(--card); color: var(--text); text-decoration: none;
}
.btn:hover { text-decoration: none; filter: brightness(1.15); }
.btn-primary { background: var(--accent); color: #04120c; font-weight: 700; }
.btn-ghost { border-color: var(--border); }
.btn-danger { background: var(--danger); color: #1a0508; }
.btn-block { width: 100%; }
.btn-sm { padding: 4px 10px; font-size: .82rem; }
.linkbtn { background: none; border: none; color: var(--muted); cursor: pointer; font-size: .95rem; padding: 0; }
.linkbtn:hover { color: var(--text); text-decoration: underline; }
.inline { display: inline; }
.inline-form { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }

.section { padding: 36px 0; }
.section.alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
@media (max-width: 760px) { .two-col { grid-template-columns: 1fr; } }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 22px;
}
.cards-credits { margin: 18px 0; }
.credit-card { display: flex; flex-direction: column; gap: 4px; }
.credit-card .big { font-size: 2.2rem; font-weight: 800; }
.credit-card.accent { border-color: var(--accent); }

.alert { background: #1c2444; border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; margin: 14px 0; }
.alert-error { border-color: var(--danger); color: var(--danger); }
.alert-ok { border-color: var(--accent); color: var(--accent); }

.form { display: flex; flex-direction: column; gap: 14px; }
.form label { display: flex; flex-direction: column; gap: 5px; font-size: .92rem; color: var(--muted); }
.form input, .form select {
  background: #0a0f22; border: 1px solid var(--border); color: var(--text);
  border-radius: 8px; padding: 10px 12px; font-size: .95rem;
}
.form input:focus, .form select:focus { outline: 2px solid var(--accent-2); border-color: transparent; }

.steps { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.steps strong { color: var(--accent); }

.table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: 10px; overflow: hidden; }
.table th, .table td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: .92rem; }
.table th { background: var(--bg-alt); color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: 1px; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

.pill { display: inline-block; padding: 2px 10px; border-radius: 20px; font-size: .78rem; font-weight: 700; }
.pill.ok { background: #12332a; color: var(--accent); }
.pill.bad { background: #3a1520; color: var(--danger); }
.pill.warn { background: #3a2f10; color: var(--warn); }

.bars { display: flex; align-items: flex-end; gap: 8px; height: 140px; padding: 10px 0; }
.bar-col { display: flex; flex-direction: column; align-items: center; gap: 5px; flex: 1; min-width: 18px; }
.bar { width: 100%; background: var(--accent-2); border-radius: 4px 4px 0 0; min-height: 2px; }
.bar-label { font-size: .68rem; color: var(--muted); }

.codeblock {
  background: #0a0f22; border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; overflow-x: auto; font-size: .88rem; line-height: 1.5;
  white-space: pre-wrap; word-break: break-word;
}
.list { padding-left: 20px; }
.list li { margin: 6px 0; }

.footer { border-top: 1px solid var(--border); background: var(--bg-alt); padding: 26px 0; margin-top: 40px; }
.footer p { margin: 4px 0; }