:root {
  --bg: #0a0a0a;
  --bg-2: #111;
  --border: #1e1e1e;
  --text: #c9d1d9;
  --text-dim: #6e7681;
  --accent: #3fb950;
  --accent-dim: #1a3d22;
  --danger: #f85149;
  --font: 'JetBrains Mono', 'Fira Mono', 'Cascadia Code', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 15px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ── */
.container { max-width: 860px; margin: 0 auto; padding: 0 24px; }

/* ── Nav ── */
nav {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  color: var(--accent);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
}
.nav-logo span { color: var(--text-dim); }
.nav-links { display: flex; gap: 32px; }
.nav-links a { color: var(--text-dim); font-size: 0.85rem; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-links a.active { color: var(--accent); }

/* ── Hero ── */
.hero { padding: 80px 0 64px; }
.prompt {
  color: var(--text-dim);
  font-size: 0.8rem;
  margin-bottom: 32px;
}
.prompt::before { content: '> '; color: var(--accent); }

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 24px;
}
h2 {
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.lead {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 600px;
  line-height: 1.8;
  margin-bottom: 40px;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  padding: 10px 20px;
  font-family: var(--font);
  font-size: 0.85rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn:hover {
  background: var(--accent);
  color: #000;
  text-decoration: none;
}
.btn-ghost {
  border-color: var(--border);
  color: var(--text-dim);
}
.btn-ghost:hover {
  background: var(--border);
  color: var(--text);
}
.btn-group { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── Status badges ── */
.status {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border: 1px solid;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.status-online { border-color: var(--accent); color: var(--accent); }
.status-scanning { border-color: #d29922; color: #d29922; }
.status-monitoring { border-color: #58a6ff; color: #58a6ff; }

/* ── Section ── */
section { padding: 56px 0; border-top: 1px solid var(--border); }

/* ── Grid ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

@media (max-width: 640px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  h1 { font-size: 1.4rem; }
}

/* ── Cards ── */
.card {
  border: 1px solid var(--border);
  padding: 24px;
  background: var(--bg-2);
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}
.card p { color: var(--text-dim); font-size: 0.875rem; line-height: 1.7; }

/* ── Terminal block ── */
.terminal {
  background: #000;
  border: 1px solid var(--border);
  padding: 24px;
  font-size: 0.85rem;
  line-height: 1.9;
}
.terminal .line-dim { color: var(--text-dim); }
.terminal .line-green { color: var(--accent); }
.terminal .line-white { color: #fff; }
.terminal .line-yellow { color: #d29922; }
.terminal .cursor::after {
  content: '▋';
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ── Metric ── */
.metric { padding: 24px; border: 1px solid var(--border); }
.metric-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
.metric-label { font-size: 0.8rem; color: var(--text-dim); }

/* ── Form ── */
.form-group { margin-bottom: 20px; }
label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
input, textarea, select {
  width: 100%;
  background: #000;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.9rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.15s;
}
input:focus, textarea:focus {
  border-color: var(--accent);
}
textarea { resize: vertical; min-height: 120px; }
.form-note { font-size: 0.78rem; color: var(--text-dim); margin-top: 8px; }

/* ── Timeline ── */
.timeline { list-style: none; }
.timeline li {
  padding: 16px 0 16px 24px;
  border-left: 1px solid var(--border);
  position: relative;
  font-size: 0.9rem;
}
.timeline li::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 22px;
  width: 7px;
  height: 7px;
  background: var(--accent);
}
.timeline .t-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.timeline .t-text { color: var(--text); }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  margin-top: 80px;
}
footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ── Alert ── */
.alert {
  padding: 12px 16px;
  border: 1px solid;
  font-size: 0.85rem;
  margin-bottom: 20px;
  display: none;
}
.alert-success { border-color: var(--accent); color: var(--accent); }
.alert-error { border-color: var(--danger); color: var(--danger); }