:root {
  color-scheme: dark;
  --bg: #0d1117;
  --panel: #151b23;
  --panel-2: #1c242f;
  --text: #eef4ff;
  --muted: #93a4b8;
  --line: #2b3645;
  --accent: #4fa3ff;
  --accent-2: #7ccf9b;
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); min-height: 100vh; }
.shell { width: min(1180px, calc(100vw - 32px)); margin: 0 auto; padding: 32px 0; }
h1, h2, p { margin: 0; }
h1 { font-size: 28px; line-height: 1.15; letter-spacing: 0; }
h2 { font-size: 18px; line-height: 1.25; letter-spacing: 0; }
.eyebrow { color: var(--accent-2); font-size: 12px; font-weight: 700; letter-spacing: 0; text-transform: uppercase; margin-bottom: 8px; }
.muted { color: var(--muted); line-height: 1.5; }
.is-hidden { display: none !important; }
.auth-panel, .panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
.auth-panel { width: min(480px, 100%); margin: 48px auto; padding: 24px; display: grid; gap: 20px; }
.tabs, .nav { display: flex; gap: 8px; flex-wrap: wrap; }
button, input, select { border-radius: var(--radius); border: 1px solid var(--line); min-height: 40px; color: var(--text); background: var(--panel-2); font: inherit; }
input, select { padding: 0 12px; width: 100%; }
button { padding: 0 14px; background: var(--accent); border-color: transparent; color: #07111f; font-weight: 700; cursor: pointer; }
button.secondary, .tab, .nav-item { background: var(--panel-2); color: var(--text); border-color: var(--line); }
.tab.is-active, .nav-item.is-active { border-color: var(--accent); color: var(--accent); }
.form-stack { display: grid; gap: 12px; }
.status { color: var(--muted); min-height: 20px; font-size: 14px; }
.dashboard { display: grid; gap: 16px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.panel { padding: 18px; display: grid; gap: 16px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.inline-form { display: grid; grid-template-columns: minmax(220px, 1fr) 130px auto; gap: 8px; }
.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 560px; }
th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--line); font-size: 14px; }
th { color: var(--muted); background: #111820; }
.vocab-list { display: grid; gap: 10px; }
.vocab-row { display: grid; grid-template-columns: 1fr 1fr 1.5fr auto; gap: 8px; }
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
label { display: grid; gap: 8px; color: var(--muted); font-size: 13px; }
.check { grid-template-columns: 20px 1fr; align-items: center; }
.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 12px; }
.metric { background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px; }
.metric strong { display: block; font-size: 24px; margin-top: 8px; }
@media (max-width: 760px) {
  .inline-form, .vocab-row, .settings-grid { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
}