:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #172033;
  --muted: #5b657a;
  --border: #dbe3f0;
  --free: #16a34a;
  --busy: #dc2626;
  --maintenance: #ca8a04;
  --focus: #2563eb;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page {
  width: min(1080px, calc(100% - 24px));
  margin: 0 auto;
  padding: 16px 0 32px;
}

.hero {
  background: linear-gradient(135deg, #0f172a, #1e3a8a);
  color: white;
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 16px;
}

.hero h1 { margin: 8px 0 10px; font-size: clamp(1.4rem, 4vw, 2.2rem); }
.eyebrow { margin: 0; letter-spacing: .12em; font-size: .75rem; opacity: .8; }
.summary { font-size: 1.05rem; font-weight: 700; }

.banner {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: .92rem;
  background: rgba(255, 255, 255, .12);
}
.banner.info { background: rgba(255, 255, 255, .12); }
.banner.success { background: rgba(22, 163, 74, .28); }
.banner.warn { background: rgba(202, 138, 4, .35); }
.banner.error { background: rgba(220, 38, 38, .3); }

.insights,
.admin-panel {
  display: grid;
  gap: 12px;
  margin-bottom: 12px;
}

.insight-card,
.panel-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
}

.insight-title,
.panel-title {
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  margin: 0 0 6px;
}

.insight-value {
  font-size: 1rem;
  font-weight: 700;
}

.panel-list {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: .93rem;
}

.smart-badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: .82rem;
  background: #e0ecff;
  color: #1e40af;
  font-weight: 600;
  margin-bottom: 8px;
}

.grid { display: grid; gap: 12px; grid-template-columns: 1fr; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

.card h2 { margin: 0 0 8px; font-size: 1.1rem; }

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 700;
  color: white;
  margin-bottom: 12px;
}

.status.free { background: var(--free); }
.status.busy { background: var(--busy); }
.status.maintenance { background: var(--maintenance); }

.meta { display: grid; gap: 6px; color: var(--muted); font-size: .95rem; }
.meta strong { color: var(--text); }

.admin-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.stack {
  display: grid;
  gap: 6px;
  font-size: .92rem;
}

.admin-bar input, .admin-bar button, .form input, .form select, .form textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 12px 14px;
  font: inherit;
}

button {
  cursor: pointer;
  background: #0f172a;
  color: white;
  border: none;
}

button.secondary { background: #334155; }
button.danger { background: #b91c1c; }
button:disabled { opacity: .65; cursor: not-allowed; }

.form { display: grid; gap: 8px; margin-top: 12px; }
.form-grid { display: grid; gap: 8px; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.hint { opacity: .9; font-size: .9rem; margin: 10px 0 0; }
textarea { min-height: 72px; resize: vertical; }

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

@media (min-width: 720px) {
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .insights { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .admin-panel { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .admin-bar { grid-template-columns: 2fr repeat(5, minmax(0, 1fr)); align-items: end; }
}