:root {
  --bg: #0d0e12;
  --bg-2: #111217;
  --surface: #16181e;
  --surface-2: #1c1e25;
  --surface-3: #25272f;
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.12);
  --text: #ecedf1;
  --text-2: #b4b7c0;
  --muted: #8b8f9a;
  --accent: #6d6af5;
  --accent-2: #8b88f8;
  --accent-soft: rgba(109, 106, 245, 0.14);
  --good: #3fb97c;
  --warn: #e2a336;
  --bad: #e5484d;
  --radius: 10px;
  --radius-sm: 7px;
  --shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.5);
  --font: 'Inter Variable', system-ui, sans-serif;
  --mono: 'JetBrains Mono Variable', ui-monospace, monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14.5px;
  -webkit-font-smoothing: antialiased;
}

body { background: var(--bg); }

a {
  color: var(--accent-2);
  text-decoration: none;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-size: 1.5rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }

p { margin: 0; }

code, .mono {
  font-family: var(--mono);
  font-size: 0.85em;
}

::selection {
  background: rgba(109, 106, 245, 0.4);
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 10px; border: 2px solid var(--bg); }
::-webkit-scrollbar-track { background: transparent; }

/* ---------- layout primitives ---------- */

.page {
  padding: 32px 40px 64px;
  max-width: 1320px;
  margin: 0 auto;
  animation: fade-in 0.25s ease;
}

.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.page-head p {
  color: var(--muted);
  margin-top: 6px;
}

.row { display: flex; gap: 12px; align-items: center; }
.row.wrap { flex-wrap: wrap; }
.col { display: flex; flex-direction: column; gap: 12px; }
.spacer { flex: 1; }
.grid { display: grid; gap: 16px; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }
.tiny { font-size: 0.75rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}

.card.hover {
  transition: border-color 0.15s;
}
.card.hover:hover { border-color: var(--line-strong); }

.section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.section-title .hint {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------- controls ---------- */

button, .btn {
  font: inherit;
  cursor: pointer;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 520;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
  white-space: nowrap;
}
button:hover { background: var(--surface-3); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button.primary, a.btn.primary {
  background: var(--accent);
  border-color: transparent;
  color: white;
}
button.primary:hover, a.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, white); }

button.ghost { background: transparent; border-color: transparent; color: var(--text-2); }
button.ghost:hover { background: rgba(255, 255, 255, 0.05); color: var(--text); }
button.danger { color: #f2999c; border-color: rgba(229, 72, 77, 0.3); background: rgba(229, 72, 77, 0.08); }
button.danger:hover { background: rgba(229, 72, 77, 0.15); }
button.icon { padding: 8px; }
button.sm { padding: 6px 11px; font-size: 0.85rem; }

input, select, textarea {
  font: inherit;
  width: 100%;
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  transition: border-color 0.15s, background 0.15s;
}
input:hover, select:hover, textarea:hover { border-color: rgba(255, 255, 255, 0.2); }
input:focus, select:focus, textarea:focus { border-color: var(--accent); background: #0c0e18; outline: none; }
textarea { resize: vertical; min-height: 80px; line-height: 1.5; }
select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 18px) 55%, calc(100% - 13px) 55%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 34px; }
input[type='color'] { padding: 0; width: 42px; height: 42px; border-radius: 10px; cursor: pointer; overflow: hidden; }
input[type='color']::-webkit-color-swatch-wrapper { padding: 0; }
input[type='color']::-webkit-color-swatch { border: none; }
input[type='range'] { -webkit-appearance: none; appearance: none; padding: 0; height: 18px; border: none; background: transparent; cursor: pointer; }
input[type='range']::-webkit-slider-runnable-track { height: 4px; border-radius: 99px; background: var(--surface-3); }
input[type='range']::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; margin-top: -5px; border-radius: 50%; background: var(--text); border: 3px solid var(--accent); }
input[type='range']:hover, input[type='range']:focus { background: transparent; }
input[type='checkbox'] { width: auto; accent-color: var(--accent); }

label.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 0.85rem;
  color: var(--text-2);
  font-weight: 500;
}
label.field .help { color: var(--muted); font-weight: 400; font-size: 0.78rem; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: 5px;
  font-size: 0.75rem;
  font-weight: 520;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-2);
  border: 1px solid var(--line);
  white-space: nowrap;
}
.badge.accent { background: var(--accent-soft); color: #b9b7fb; border-color: rgba(109, 106, 245, 0.28); }
.badge.good { background: rgba(52, 211, 153, 0.12); color: #6ee7b7; border-color: rgba(52, 211, 153, 0.25); }
.badge.warn { background: rgba(251, 191, 36, 0.12); color: #fcd34d; border-color: rgba(251, 191, 36, 0.25); }
.badge.bad { background: rgba(244, 63, 94, 0.12); color: #fda4af; border-color: rgba(244, 63, 94, 0.25); }

.segmented {
  display: inline-flex;
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}
.segmented button {
  border: none;
  background: transparent;
  padding: 7px 14px;
  border-radius: 7px;
  color: var(--muted);
  font-size: 0.88rem;
}
.segmented button.active { background: var(--surface-3); color: var(--text); }

.tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
  overflow-x: auto;
}
.tabs button {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  color: var(--muted);
  padding: 12px 16px;
}
.tabs button:hover { color: var(--text); background: none; }
.tabs button.active { color: var(--text); border-bottom-color: var(--accent); }

table.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.table th {
  text-align: left;
  color: var(--muted);
  font-weight: 500;
  font-size: 0.78rem;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
}
.table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.table tr:last-child td { border-bottom: none; }
.table tbody tr { transition: background 0.1s; }
.table tbody tr:hover { background: rgba(255, 255, 255, 0.02); }

.empty {
  text-align: center;
  padding: 56px 20px;
  color: var(--muted);
}
.empty h3 { color: var(--text); margin: 12px 0 6px; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.spin { animation: spin 0.9s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

@media (max-width: 900px) {
  .page { padding: 20px 16px 48px; }
}