:root {
  --bg: #0f0f0f;
  --card: #1a1a1a;
  --border: #2a2a2a;
  --text: #e5e5e5;
  --muted: #888;
  --accent: #3b82f6;
  --accent-dim: #1e3a5f;
  --green: #22c55e;
  --green-dim: #14532d;
  --yellow: #eab308;
  --yellow-dim: #713f12;
  --red: #ef4444;
  --red-dim: #7f1d1d;
  --orange: #f97316;
  --orange-dim: #7c2d12;
  --radius: 8px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
.container { max-width: 1280px; margin: 0 auto; padding: 2rem 1.5rem; }
h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
.subtitle { color: var(--muted); font-size: 0.875rem; margin-top: 0.25rem; }
.loading { text-align: center; padding: 4rem; color: var(--muted); }
.loading .spinner { display: inline-block; width: 20px; height: 20px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.6s linear infinite; margin-right: 8px; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Nav */
.nav { display: flex; gap: 0.25rem; margin-bottom: 1rem; border-bottom: 1px solid var(--border); padding-bottom: 0.75rem; }
.nav-link { color: var(--muted); text-decoration: none; font-size: 0.875rem; font-weight: 500; padding: 0.375rem 0.75rem; border-radius: var(--radius); transition: all 0.15s; }
.nav-link:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--text); background: var(--card); border: 1px solid var(--border); }

/* Filters */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; justify-content: space-between; margin: 1.25rem 0; }
.presets { display: flex; flex-wrap: wrap; gap: 0.375rem; }
.preset-btn { background: var(--card); border: 1px solid var(--border); color: var(--text); padding: 0.375rem 0.75rem; border-radius: var(--radius); cursor: pointer; font-size: 0.8125rem; transition: all 0.15s; }
.preset-btn:hover { border-color: var(--muted); }
.preset-btn.active { background: var(--text); color: var(--bg); border-color: var(--text); }
select { background: var(--card); border: 1px solid var(--border); color: var(--text); padding: 0.375rem 0.75rem; border-radius: var(--radius); font-size: 0.8125rem; cursor: pointer; min-width: 160px; }
.divider { border: none; border-top: 1px solid var(--border); margin: 0.5rem 0; }

/* KPI Cards */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin: 1.25rem 0; }
@media (max-width: 768px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
.kpi { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
.kpi-label { font-size: 0.8125rem; color: var(--muted); margin-bottom: 0.25rem; }
.kpi-value { font-size: 1.75rem; font-weight: 700; }
.kpi-sub { font-size: 0.75rem; color: var(--muted); margin-top: 0.25rem; }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.25rem; }
.card h3 { font-size: 1rem; font-weight: 600; margin-bottom: 1rem; }

/* Funnel */
.funnel-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; text-align: center; }
@media (max-width: 640px) { .funnel-grid { grid-template-columns: repeat(3, 1fr); } }
.funnel-stage .value { font-size: 1.75rem; font-weight: 700; }
.funnel-stage .label { font-size: 0.8125rem; color: var(--muted); }
.funnel-stage .rate { font-size: 0.75rem; color: var(--muted); margin-top: 0.125rem; }

/* Tables */
table { width: 100%; border-collapse: collapse; font-size: 0.8125rem; }
th { text-align: left; color: var(--muted); font-weight: 500; padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--border); }
th.right, td.right { text-align: right; }
td { padding: 0.5rem 0.75rem; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tr.total td { border-top: 2px solid var(--border); font-weight: 600; }
.badge { display: inline-block; padding: 0.125rem 0.5rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500; }
.badge-default { background: var(--text); color: var(--bg); }
.badge-secondary { background: var(--border); color: var(--text); }
.note { font-size: 0.75rem; color: var(--muted); margin-top: 0.75rem; }

/* Two-col layout */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 900px) { .two-col { grid-template-columns: 1fr; } }

/* Outcome grid */
.outcome-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; text-align: center; }
@media (max-width: 640px) { .outcome-grid { grid-template-columns: repeat(2, 1fr); } }
.outcome-item .value { font-size: 1.5rem; font-weight: 700; }
.outcome-item .label { font-size: 0.8125rem; color: var(--muted); text-transform: capitalize; }
.outcome-item .pct { font-size: 0.75rem; color: var(--muted); }

/* Bar chart */
.bar-row { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.375rem; }
.bar-label { width: 140px; font-size: 0.8125rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex-shrink: 0; }
.bar-track { flex: 1; height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: 4px; transition: width 0.3s; }
.bar-count { width: 40px; text-align: right; font-size: 0.8125rem; color: var(--muted); flex-shrink: 0; }

/* Call log expand */
.call-row { cursor: pointer; transition: background 0.1s; }
.call-row:hover { background: rgba(255,255,255,0.03); }
.expand-row td { background: rgba(255,255,255,0.02); padding: 0.75rem 1.5rem; }
.expand-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; font-size: 0.8125rem; }
.expand-grid .field-label { color: var(--muted); }
.expand-full { grid-column: 1 / -1; }
.chevron { display: inline-block; transition: transform 0.15s; font-size: 0.75rem; color: var(--muted); }
.chevron.open { transform: rotate(90deg); }
.recording-link { color: var(--accent); text-decoration: none; font-size: 0.8125rem; }
.recording-link:hover { text-decoration: underline; }

/* Pagination */
.pagination { display: flex; align-items: center; justify-content: center; gap: 0.75rem; margin-top: 1rem; }
.page-btn { background: var(--card); border: 1px solid var(--border); color: var(--text); padding: 0.375rem 0.75rem; border-radius: var(--radius); cursor: pointer; font-size: 0.8125rem; }
.page-btn:disabled { opacity: 0.4; cursor: default; }
.page-btn:not(:disabled):hover { border-color: var(--muted); }
.page-info { font-size: 0.8125rem; color: var(--muted); }

/* Diagnosis */
.diagnosis-item { border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 0.75rem; }
.diagnosis-item.critical { border-left: 3px solid var(--red); }
.diagnosis-item.warning { border-left: 3px solid var(--yellow); }
.diagnosis-item.info { border-left: 3px solid var(--accent); }
.diagnosis-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.diagnosis-severity { font-size: 0.6875rem; font-weight: 600; text-transform: uppercase; padding: 0.125rem 0.5rem; border-radius: 999px; }
.severity-critical { background: var(--red-dim); color: var(--red); }
.severity-warning { background: var(--yellow-dim); color: var(--yellow); }
.severity-info { background: var(--accent-dim); color: var(--accent); }
.diagnosis-title { font-weight: 600; font-size: 0.875rem; }
.diagnosis-body { font-size: 0.8125rem; color: var(--muted); }
.diagnosis-body ul { margin: 0.375rem 0 0 1.25rem; }
.diagnosis-body li { margin-bottom: 0.25rem; }
.diagnosis-section-label { font-size: 0.75rem; font-weight: 600; color: var(--text); margin-top: 0.5rem; margin-bottom: 0.25rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* WoW comparison */
.wow-up { color: var(--green); }
.wow-down { color: var(--red); }
.wow-flat { color: var(--muted); }

/* Heatmap */
.heatmap { display: grid; gap: 2px; }
.heatmap-cell { border-radius: 3px; display: flex; align-items: center; justify-content: center; font-size: 0.6875rem; font-weight: 500; min-height: 36px; transition: all 0.15s; position: relative; }
.heatmap-cell:hover { outline: 1px solid var(--text); z-index: 1; }
.heatmap-label { font-size: 0.75rem; color: var(--muted); display: flex; align-items: center; justify-content: center; }

.hidden { display: none; }