:root {
  --bg: #0f1117; --card: #161922; --card-hover: #1c1f2b; --border: #252a36;
  --text: #c9d1d9; --text-dim: #8b949e; --accent: #58a6ff; --accent2: #238636;
  --warn: #d29922; --danger: #da3633; --purple: #8957e5; --cyan: #39d0d8; --orange: #e3b341;
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
}
html.light {
  --bg: #f3f4f6; --card: #ffffff; --card-hover: #f9fafb; --border: #d1d5db;
  --text: #1f2937; --text-dim: #6b7280; --accent: #2563eb; --accent2: #16a34a;
  --warn: #d97706; --danger: #dc2626; --purple: #7c3aed; --cyan: #0891b2; --orange: #d97706;
}
html.light .neon-title {
  color: #c2410c; text-shadow: none;
}
html.light header {
  background: linear-gradient(90deg, #ffffff 0%, #f3f4f6 100%);
}
html.light tr:hover td { background: rgba(0,0,0,0.02); }
html.light .chart-modal { background: rgba(255,255,255,0.92); }

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--font); }
body { padding-bottom: 40px; }

/* ── Header / Topbar ─────────────────────────────────── */
header {
  background: linear-gradient(90deg, #161922 0%, #1c1f2b 100%);
  border-bottom: 1px solid var(--border);
  padding: 12px 20px;
  display: flex; align-items: center; gap: 8px;
  position: sticky; top: 0; z-index: 100;
  flex-wrap: nowrap;
}
header h1 {
  margin: 0; font-size: 1.1rem;
  display: flex; align-items: center; gap: 6px;
  white-space: nowrap;
}
.neon-title { color: #ff8800; text-shadow: 0 0 5px #ff8800, 0 0 10px #ff4400, 0 0 20px #ff2200; }
.brand-logo { width: 28px; height: 28px; border-radius: 8px; object-fit: cover; box-shadow: 0 0 12px rgba(255,138,61,0.4); flex-shrink: 0; }
html.light .brand-logo { box-shadow: 0 0 8px rgba(255,138,61,0.25); }
header .subtitle { color: var(--text-dim); font-size: 0.8rem; display: none; }
.header-right {
  margin-left: auto;
  display: flex; align-items: center; gap: 8px;
}

/* ── Topbar Tabs ─────────────────────────────────────── */
.topbar-tabs {
  display: flex; align-items: center; gap: 2px;
  margin-left: 12px;
}
.topbar-tab {
  background: transparent; border: none; color: var(--text-dim);
  padding: 6px 14px; border-radius: 6px; font-size: 0.85rem; cursor: pointer;
  transition: all 0.15s; white-space: nowrap; font-weight: 500;
}
.topbar-tab:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.topbar-tab.active {
  color: #fff; background: var(--accent);
}

/* ── Refresh Badge ───────────────────────────────────── */
.refresh-badge {
  font-size: 0.75rem; padding: 3px 10px; border-radius: 12px; background: var(--border); color: var(--text-dim);
  display: flex; align-items: center; gap: 6px;
}
.refresh-badge.active { background: rgba(35,134,54,0.2); color: var(--accent2); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-dim); }
.refresh-badge.active .dot { background: var(--accent2); animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:0.3;} }

/* ── Theme Toggle ────────────────────────────────────── */
.theme-toggle {
  background: none; border: 1px solid var(--border); color: var(--text-dim);
  font-size: 1.1rem; padding: 4px 8px; border-radius: 6px; cursor: pointer;
  transition: all 0.15s; line-height: 1;
}
.theme-toggle:hover { border-color: var(--accent); color: var(--text); }

/* ── Circuit Breaker Reset-All Button ────────────────── */
.cb-reset-all {
  background: none; border: 1px solid var(--border); color: var(--text-dim);
  font-size: 0.75rem; font-weight: 600; padding: 5px 10px; border-radius: 6px;
  cursor: pointer; transition: all 0.15s; white-space: nowrap;
}
.cb-reset-all:hover { border-color: var(--warn); color: var(--warn); background: rgba(226,179,65,0.08); }
.cb-reset-all:active { transform: scale(0.95); }
.cb-reset-all:disabled { cursor: not-allowed; }

/* ── Toolbar ─────────────────────────────────────────── */
.toolbar { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; padding: 16px 24px; }
.filter-group { display: flex; align-items: center; gap: 6px; }
.filter-group label { font-size: 0.8rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }
select, button {
  background: var(--card); border: 1px solid var(--border); color: var(--text);
  padding: 6px 12px; border-radius: 6px; font-size: 0.9rem; cursor: pointer; outline: none;
  transition: border-color 0.15s, background 0.15s;
}
select:hover, button:hover { border-color: var(--accent); }
button { background: var(--accent); color: #fff; border-color: var(--accent); font-weight: 600; }
button:hover { background: #4a8eff; }

/* ── Provider Pills ──────────────────────────────────── */
.provider-pills { display: flex; gap: 6px; flex-wrap: wrap; }
.pill {
  padding: 4px 10px; border-radius: 14px; font-size: 0.8rem; cursor: pointer; user-select: none;
  border: 1px solid var(--border); background: var(--card); color: var(--text-dim);
  transition: all 0.15s;
}
.pill.on { background: rgba(88,166,255,0.15); border-color: var(--accent); color: var(--accent); }
.pill.all.on { background: rgba(137,87,229,0.15); border-color: var(--purple); color: var(--purple); }

/* ── Container & Grid ────────────────────────────────── */
.container { padding: 0 24px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 14px; margin-bottom: 24px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 18px;
  transition: background 0.15s;
}
.card:hover { background: var(--card-hover); }
.card .label { font-size: 0.75rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 6px; }
.card .value { font-size: 1.6rem; font-weight: 700; }
.card .sub { font-size: 0.8rem; color: var(--text-dim); margin-top: 4px; }
.card .sub span { color: var(--accent); }
.kpi-small { font-size: 0.85rem; color: var(--text-dim); margin-top: 2px; }

/* ── Section Titles ──────────────────────────────────── */
.section-title {
  font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-dim);
  margin: 28px 0 12px; display: flex; align-items: center; gap: 8px;
  cursor: pointer; user-select: none;
}
.section-title:hover { color: var(--text); }
.section-title::before { content: ""; display: block; width: 3px; height: 16px; background: var(--accent); border-radius: 2px; }
.section-title .collapse-arrow { font-size: 0.8rem; transition: transform 0.2s; display: inline-block; }
.section-title.collapsed .collapse-arrow { transform: rotate(-90deg); }
.collapsible-content { overflow: hidden; transition: max-height 0.3s ease; }
.collapsible-content.collapsed { max-height: 0 !important; }

/* ── Chart Grid ──────────────────────────────────────── */
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 24px; }
@media (max-width: 900px) { .chart-grid { grid-template-columns: 1fr; } }
.chart-grid.top-row { grid-template-columns: 3fr 1fr; }
@media (max-width: 1200px) { .chart-grid.top-row { grid-template-columns: 1fr; } }

.chart-card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 20px; position: relative; }
.chart-card .chart-title {
  font-size: 0.85rem; color: var(--text-dim); margin-bottom: 10px;
  display: flex; justify-content: space-between; align-items: center;
}
.chart-card .chart-title .toggle { font-size: 0.75rem; color: #fff; cursor: pointer; background: var(--accent); padding: 3px 10px; border-radius: 4px; font-weight: 600; }
.chart-card .chart-title .toggle:hover { background: #4a8eff; }
.chart-wrap { position: relative; height: 400px; }
.chart-wrap.tall { height: 480px; }

/* ── Tables ──────────────────────────────────────────── */
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--text-dim); font-weight: 600; text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.5px; }
tr:hover td { background: rgba(255,255,255,0.03); }
td.num { text-align: right; font-variant-numeric: tabular-nums; }
.tag { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.tag-ollama { background: rgba(88,166,255,0.12); color: var(--accent); }
.tag-opencode { background: rgba(137,87,229,0.12); color: var(--purple); }
.tag-default { background: rgba(226,179,65,0.12); color: var(--orange); }

.status-ok { color: var(--accent2); }
.status-warn { color: var(--warn); }
.status-bad { color: var(--danger); }

.cb-reset {
  cursor: pointer;
  margin-left: 4px;
  font-size: 0.8rem;
  opacity: 0.7;
  transition: opacity 0.15s, transform 0.1s;
  user-select: none;
}
.cb-reset:hover { opacity: 1; transform: scale(1.2); }
.cb-reset:active { transform: scale(0.9); }

.empty-state { text-align: center; padding: 40px; color: var(--text-dim); font-size: 0.9rem; }

/* ── Seg Toggle ──────────────────────────────────────── */
.seg-toggle {
  font-size: 0.75rem; color: #fff; cursor: pointer; background: var(--accent);
  padding: 4px 14px; border-radius: 6px; font-weight: 600; border: none;
}
.seg-toggle:hover { background: #4a8eff; }
.seg-toggle.on { background: var(--accent2); }
.seg-toggle.on:hover { background: #2ea043; }

/* ── Chart Modal (Zoom) ──────────────────────────────── */
.chart-modal {
  display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(15,17,23,0.97); z-index: 1000;
  justify-content: center; align-items: center; padding: 20px;
}
.chart-modal.active { display: flex; }
.chart-modal .modal-content {
  width: 95vw; height: 88vh; position: relative;
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 48px 24px 24px;
}
.chart-modal #modalCanvas { width: 100% !important; height: 100% !important; }
.chart-modal .close-btn {
  position: absolute; top: 12px; right: 12px; color: #fff; font-size: 1.2rem;
  cursor: pointer; background: var(--card); border: 1px solid var(--border);
  border-radius: 6px; width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center; z-index: 10;
  transition: all 0.15s;
}
.chart-modal .close-btn:hover { background: var(--danger); border-color: var(--danger); }
.chart-grid .chart-card:hover { border-color: var(--accent); }
.zoom-btn {
  position: absolute; top: 8px; right: 8px;
  background: rgba(37,42,54,0.8); border: 1px solid var(--border);
  color: var(--text-dim); padding: 4px 8px; border-radius: 4px;
  cursor: pointer; font-size: 0.9rem; z-index: 5; transition: all 0.15s;
}
.zoom-btn:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

@media (max-width: 640px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Toast / Alert Animations ────────────────────────── */
@keyframes slideIn {
  from { transform: translateX(400px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(400px); opacity: 0; }
}

/* ── Tab Content ─────────────────────────────────────── */
.tab-content { display: block; }
.tab-content.hidden { display: none; }