/* hiring-stack — vanilla dark theme */
:root {
  --bg: #0a0e1a;
  --surface: #121826;
  --surface-2: #1a2236;
  --border: #1f2937;
  --border-strong: #2c3a52;
  --text: #e5e7eb;
  --muted: #9ca3af;
  --dim: #6b7280;
  --accent: #60a5fa;
  --accent-2: #818cf8;
  --positive: #22c55e;
  --negative: #ef4444;
  --warning: #f59e0b;
  --code-bg: #0f1626;
  --pill-bg: #1f2a40;
}
* { box-sizing: border-box; }
html, body { background: var(--bg); color: var(--text); }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Helvetica Neue", sans-serif;
       margin: 0; line-height: 1.5; font-size: 14px; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.dim { color: var(--dim); }

.topbar {
  position: sticky; top: 0; z-index: 10;
  background: linear-gradient(180deg, rgba(10,14,26,0.95), rgba(10,14,26,0.85));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: baseline; gap: 8px; }
.brand-mark { color: var(--accent); font-size: 18px; }
.brand-name { font-weight: 700; font-size: 18px; color: var(--text); }
.brand-sub { color: var(--muted); font-size: 12px; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.btn {
  background: var(--surface-2); color: var(--text); border: 1px solid var(--border-strong);
  padding: 6px 12px; border-radius: 6px; font-size: 13px; cursor: pointer;
}
.btn:hover { background: var(--border-strong); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.pill {
  background: var(--pill-bg); color: var(--muted);
  padding: 4px 10px; border-radius: 999px; font-size: 12px; border: 1px solid var(--border);
}
.pill.ok { color: var(--positive); border-color: rgba(34,197,94,0.3); }
.pill.warn { color: var(--warning); border-color: rgba(245,158,11,0.3); }
.pill.bad { color: var(--negative); border-color: rgba(239,68,68,0.3); }

.banner {
  margin: 12px 24px 0; padding: 10px 14px; border-radius: 8px;
  background: rgba(245,158,11,0.08); color: var(--warning);
  border: 1px solid rgba(245,158,11,0.3);
  font-size: 13px;
}

main {
  display: grid; grid-template-columns: 240px 1fr; gap: 24px;
  padding: 24px; max-width: 1400px; margin: 0 auto;
}
@media (max-width: 900px) {
  main { grid-template-columns: 1fr; }
}

aside.sidebar {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px; height: fit-content; position: sticky; top: 80px;
}
.sidebar h3 { margin: 0 0 8px; font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: 0.04em; }
.sidebar ul { list-style: none; padding: 0; margin: 0 0 16px; }
.sidebar li { padding: 4px 0; }
.sidebar a { color: var(--text); display: block; padding: 4px 8px; border-radius: 4px; cursor: pointer; }
.sidebar a:hover { background: var(--surface-2); text-decoration: none; }
.sidebar a.active { background: var(--surface-2); color: var(--accent); font-weight: 600; }
.sidebar .check { display: flex; align-items: center; gap: 8px; padding: 4px 8px; cursor: pointer; }
.sidebar select { width: 100%; background: var(--surface-2); color: var(--text); border: 1px solid var(--border-strong); padding: 6px; border-radius: 4px; }

section.content { min-width: 0; }
.section-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 20px; margin-bottom: 20px;
}
.section-card h2 { margin: 0 0 16px; font-size: 16px; }
.section-card h2 .month-label { color: var(--muted); font-weight: 400; margin-left: 6px; font-size: 13px; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.hero-stat { background: var(--surface-2); padding: 12px; border-radius: 8px; border: 1px solid var(--border); }
.hero-stat .label { font-size: 11px; text-transform: uppercase; color: var(--muted); letter-spacing: 0.04em; }
.hero-stat .value { font-size: 22px; font-weight: 700; margin-top: 4px; }
.hero-stat .delta { font-size: 12px; margin-top: 2px; }

.trending-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 700px) { .trending-grid { grid-template-columns: 1fr; }
                           .hero-stats { grid-template-columns: 1fr 1fr; } }
.trend-list { list-style: none; padding: 0; margin: 0; }
.trend-list li {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.trend-list li:last-child { border-bottom: none; }
.trend-name { display: flex; align-items: center; gap: 8px; }
.trend-cat { font-size: 10px; color: var(--muted); padding: 2px 6px; border-radius: 3px; background: var(--pill-bg); }
.delta-pos { color: var(--positive); }
.delta-neg { color: var(--negative); }
.delta-flat { color: var(--muted); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); font-size: 13px; }
th { color: var(--muted); font-weight: 600; text-transform: uppercase; font-size: 11px; letter-spacing: 0.04em; cursor: pointer; user-select: none; }
th.sort-asc::after { content: " ▲"; color: var(--accent); }
th.sort-desc::after { content: " ▼"; color: var(--accent); }
tr:hover td { background: var(--surface-2); }
td.num { text-align: right; font-variant-numeric: tabular-nums; }

.posting {
  padding: 14px; border-bottom: 1px solid var(--border);
}
.posting:last-child { border-bottom: none; }
.posting-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px; }
.posting-company { font-weight: 700; font-size: 15px; }
.posting-role { color: var(--text); }
.posting-meta { color: var(--muted); font-size: 12px; }
.posting-tools { margin-top: 6px; display: flex; flex-wrap: wrap; gap: 6px; }
.tool-pill { background: var(--pill-bg); padding: 2px 8px; border-radius: 999px; font-size: 11px; color: var(--accent); cursor: pointer; }
.tool-pill:hover { background: var(--surface-2); }
.posting-actions { margin-top: 8px; font-size: 12px; }

.cat-icon-aif { color: #a78bfa; }
.cat-icon-inf { color: #60a5fa; }
.cat-icon-db  { color: #34d399; }
.cat-icon-cloud { color: #fbbf24; }
.cat-icon-frontend { color: #f472b6; }
.cat-icon-backend { color: #94a3b8; }
.cat-icon-language { color: #fb923c; }
.cat-icon-ide { color: #c084fc; }
.cat-icon-model { color: #67e8f9; }
.cat-icon-devops { color: #facc15; }

.chart-wrap { height: 200px; position: relative; }
.search-row { display: flex; gap: 8px; margin-bottom: 12px; }
.search-row input[type=text] { flex: 1; background: var(--surface-2); color: var(--text); border: 1px solid var(--border-strong); padding: 8px 10px; border-radius: 6px; }
.empty { padding: 24px; text-align: center; color: var(--muted); }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--border-strong); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.pagination { display: flex; gap: 6px; justify-content: center; padding: 16px; }
.footer { padding: 24px; text-align: center; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); }
.footer a { color: var(--muted); text-decoration: underline; }

code { background: var(--code-bg); padding: 1px 5px; border-radius: 3px; font-size: 12px; color: var(--accent); }
.about-block { max-width: 700px; margin: 0 auto; line-height: 1.7; }
.about-block h2 { margin-top: 24px; }