:root {
  --bg0: #0c1210;
  --bg1: #15221c;
  --card: #1e3228;
  --line: #2f4a3c;
  --text: #e8f5ee;
  --muted: #8fad9c;
  --accent: #34d399;
  --accent2: #5eead4;
  --warn: #fbbf24;
  --danger: #f87171;
  --radius: 16px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(1100px 560px at 8% -12%, #1a4d3a 0%, transparent 55%),
    radial-gradient(800px 480px at 100% 0%, #0e3a4a55 0%, transparent 50%),
    var(--bg0);
  min-height: 100vh;
}
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 980px; margin: 0 auto; padding: 1.25rem 1.25rem 3rem; }
.top {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; padding: 0.5rem 0 1.5rem; border-bottom: 1px solid var(--line);
  margin-bottom: 1.75rem;
}
.brand a { color: var(--text); font-weight: 700; font-size: 1.15rem; letter-spacing: .02em; text-decoration: none; }
.brand-sub { color: var(--muted); font-size: .9rem; }
.main h1 { margin: 0 0 .4rem; font-size: 1.75rem; font-weight: 700; }
.lead { color: var(--muted); margin: 0 0 1.5rem; line-height: 1.5; max-width: 42rem; }
.grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.card {
  background: linear-gradient(165deg, var(--card), var(--bg1));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  transition: border-color .15s, transform .15s;
}
a.card { color: inherit; display: block; text-decoration: none; }
a.card:hover { border-color: var(--accent2); transform: translateY(-2px); text-decoration: none; }
.card h2 { margin: 0 0 .35rem; font-size: 1.15rem; }
.card p { margin: 0; color: var(--muted); font-size: .92rem; line-height: 1.45; }
.card .tag {
  display: inline-block; margin-top: .85rem; font-size: .72rem; font-weight: 600;
  letter-spacing: .04em; text-transform: uppercase;
  color: #052e16; background: var(--accent); padding: .2rem .5rem; border-radius: 999px;
}
.card .tag.blue { background: var(--accent2); color: #042f2e; }
.card .tag.amber { background: var(--warn); color: #422006; }
.meta {
  display: flex; flex-wrap: wrap; gap: .75rem 1.25rem;
  margin: 0 0 1.5rem; padding: .9rem 1rem;
  background: #08140fcc; border: 1px solid var(--line); border-radius: 12px;
  font-size: .88rem; color: var(--muted);
}
.meta strong { color: var(--text); }
.form {
  background: var(--bg1); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.25rem;
}
.form label { display: block; font-size: .82rem; color: var(--muted); margin: .65rem 0 .25rem; }
.form input, .form select {
  width: 100%; padding: .65rem .75rem; border-radius: 10px;
  border: 1px solid var(--line); background: #0a1a14; color: var(--text);
  font: inherit;
}
.form .row { display: grid; gap: .75rem; grid-template-columns: 1fr 1fr; }
@media (max-width: 640px) { .form .row { grid-template-columns: 1fr; } }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
  margin-top: 1rem; padding: .7rem 1.1rem; border-radius: 10px; border: 0;
  font: inherit; font-weight: 600; cursor: pointer;
  background: var(--accent); color: #052e16;
}
.btn.secondary { background: #334155; color: var(--text); }
.btn:hover { filter: brightness(1.08); }
.steps { margin: 1rem 0 0; padding-left: 1.2rem; color: var(--muted); line-height: 1.55; }
.steps li { margin: .35rem 0; }
.alert {
  padding: .85rem 1rem; border-radius: 10px; margin-bottom: 1rem;
  border: 1px solid var(--line); background: #08140f; color: var(--muted); font-size: .9rem;
}
.alert.ok { border-color: #166534; color: #bbf7d0; }
.alert.warn { border-color: #854d0e; color: #fde68a; }
.back { display: inline-block; margin-bottom: 1rem; color: var(--muted); font-size: .9rem; }
.foot { margin-top: 2.5rem; color: #64748b; font-size: .8rem; text-align: center; }
code { font-size: .85em; background: #0a1a14; padding: .1rem .35rem; border-radius: 4px; }