:root {
  --bg: #0b0f17;
  --surface: #121826;
  --surface-2: #1a2233;
  --border: #243044;
  --text: #e8edf5;
  --muted: #8b98ad;
  --accent: #3b82f6;
  --accent-2: #6366f1;
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --radius: 12px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

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

body {
  font-family: "DM Sans", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.app {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.brand h1 { font-size: 1rem; font-weight: 700; }
.brand p { font-size: 0.75rem; color: var(--muted); }

.sidebar-section label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

select {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.85rem;
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  flex: 1;
}

.nav-item {
  background: transparent;
  border: none;
  color: var(--muted);
  text-align: left;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.875rem;
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover { background: var(--surface-2); color: var(--text); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.2), transparent);
  color: var(--text);
  font-weight: 600;
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.live-indicator {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.35rem;
  color: var(--green);
  font-weight: 600;
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.refresh-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
  cursor: pointer;
}

.main {
  padding: 1.5rem 2rem;
  overflow-y: auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.topbar h2 { font-size: 1.5rem; font-weight: 700; }
.topbar p { color: var(--muted); font-size: 0.875rem; margin-top: 0.25rem; }

.btn {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.55rem 1rem;
  border-radius: 8px;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
}

.btn:hover { filter: brightness(1.1); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}

.card-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.card-value {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0.25rem 0;
  font-family: "JetBrains Mono", monospace;
}

.card-sub { font-size: 0.8rem; color: var(--muted); }

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

@media (max-width: 1100px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { height: auto; position: relative; }
  .grid-2 { grid-template-columns: 1fr; }
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.panel h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th, td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge.balanced { background: rgba(34, 197, 94, 0.15); color: var(--green); }
.badge.moderate { background: rgba(234, 179, 8, 0.15); color: var(--yellow); }
.badge.imbalanced { background: rgba(239, 68, 68, 0.15); color: var(--red); }

.quality-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
}

.quality-item {
  background: var(--surface-2);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}

.quality-item strong { display: block; font-size: 1.1rem; margin-bottom: 0.15rem; }
.quality-item span { font-size: 0.8rem; color: var(--muted); }

.direction-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.direction-item {
  background: var(--surface-2);
  border-radius: 8px;
  padding: 0.75rem;
  text-align: center;
}

.direction-item .slot-name {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.direction-item .slot-score {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: "JetBrains Mono", monospace;
  color: var(--green);
}

.direction-item .slot-top {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-family: "JetBrains Mono", monospace;
}

.tag em {
  font-style: normal;
  color: var(--accent);
  margin-left: 0.35rem;
}

.compare-row { cursor: pointer; }
.compare-row:hover { background: var(--surface-2); }

.catalog-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-bottom: 1rem;
}

.catalog-toolbar input[type="search"] {
  flex: 1;
  min-width: 220px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.875rem;
}

.catalog-toolbar select {
  width: auto;
  min-width: 180px;
}

.filter-used {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.panel-head h3 { margin-bottom: 0; }

.panel-meta {
  font-size: 0.75rem;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
}

.catalog-scroll {
  max-height: 360px;
  overflow-y: auto;
}

.catalog-scroll-tall {
  max-height: 520px;
}

.catalog-scroll tbody tr.unused { opacity: 0.45; }
.catalog-scroll tbody tr.extra td:first-child + td { color: var(--yellow); }

.instruction-cell {
  max-width: 640px;
  line-height: 1.45;
  font-size: 0.82rem;
}

.mono {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: var(--accent);
}

.badge.unused { background: rgba(100, 116, 139, 0.2); color: var(--muted); }
.badge.used { background: rgba(34, 197, 94, 0.15); color: var(--green); }
.badge.extra { background: rgba(234, 179, 8, 0.15); color: var(--yellow); }