:root {
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --bg-primary: #FAFAF8;
  --bg-card: #FFFFFF;
  --bg-surface: #F3F2EF;
  --bg-nav: #0F0F0F;
  --bg-input: #FFFFFF;

  --text-primary: #1A1A1A;
  --text-secondary: #6B6B6B;
  --text-tertiary: #9B9B9B;
  --text-inverse: #FFFFFF;

  --border: #E4E3DF;
  --border-light: #EEEDEA;
  --border-focus: #1A1A1A;

  --accent: #2B6CB0;
  --accent-light: #EBF4FF;
  --success: #1A7A42;
  --success-light: #E8F5E9;
  --warning: #B87514;
  --warning-light: #FFF8E1;
  --danger: #C62828;
  --danger-light: #FFEBEE;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── Nav ── */
#nav {
  display: flex;
  align-items: center;
  padding: 0 24px;
  height: 56px;
  background: var(--bg-nav);
  position: sticky;
  top: 0;
  z-index: 100;
}
.nav-left { flex: 0 0 200px; }
.nav-center { display: flex; gap: 2px; justify-content: center; flex: 1; }
.nav-right { flex: 0 0 200px; display: flex; justify-content: flex-end; align-items: center; }
.nav-brand { display: flex; align-items: center; gap: 8px; color: var(--text-inverse); }
.brand-mark { font-weight: 600; font-size: 1rem; color: var(--text-inverse); }
.brand-text { font-size: 0.82rem; opacity: 0.55; }
.nav-link {
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 400;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.15s;
}
.nav-link:hover { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.06); }
.nav-link.active { color: #fff; background: rgba(255,255,255,0.1); font-weight: 500; }
.nav-user { font-size: 0.82rem; color: rgba(255,255,255,0.6); margin-right: 10px; }
.nav-logout {
  color: rgba(255,255,255,0.5) !important;
  border-color: rgba(255,255,255,0.15) !important;
  background: transparent !important;
  font-size: 0.78rem !important;
}
.nav-logout:hover { color: rgba(255,255,255,0.9) !important; background: rgba(255,255,255,0.08) !important; }

/* ── Auth ── */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  padding: 20px;
}
.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}
.auth-logo { text-align: center; margin-bottom: 28px; }
.auth-subtitle { font-size: 0.85rem; color: var(--text-secondary); }
.auth-error {
  background: var(--danger-light);
  color: var(--danger);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  margin-bottom: 14px;
}

/* ── Main container ── */
#view-container { max-width: 1100px; margin: 0 auto; padding: 32px 24px 80px; }

/* ── Sections ── */
.section { margin-bottom: 32px; }
.section-label {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

/* ── Buttons ── */
.btn {
  padding: 8px 18px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all 0.12s;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.btn:hover { background: var(--bg-surface); }
.btn-primary { background: var(--text-primary); color: var(--text-inverse); border-color: var(--text-primary); }
.btn-primary:hover { background: #333; }
.btn-sm { padding: 5px 12px; font-size: 0.78rem; }
.btn-danger { color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger-light); }

/* ── Inputs ── */
.input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 0.93rem;
  font-family: var(--font-body);
  background: var(--bg-input);
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s;
}
.input:focus { border-color: var(--border-focus); }
.input::placeholder { color: var(--text-tertiary); }

/* ── Metric cards ── */
.metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 28px; }
.metric-card { background: var(--bg-surface); border-radius: var(--radius-md); padding: 18px; }
.metric-label { font-size: 0.75rem; color: var(--text-secondary); margin-bottom: 4px; }
.metric-val { font-size: 1.4rem; font-weight: 600; font-family: var(--font-mono); }
.metric-delta { font-size: 0.78rem; margin-top: 3px; color: var(--text-secondary); }
.metric-delta.up { color: var(--success); }
.metric-delta.down { color: var(--danger); }

/* ── Data table ── */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
.data-table th {
  text-align: left;
  font-weight: 500;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.data-table td { padding: 12px; border-bottom: 1px solid var(--border-light); vertical-align: middle; }
.data-table tr:hover td { background: var(--bg-surface); }

/* ── Traffic light pacing badges ── */
.pacing {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
}
.pacing-dot {
  width: 9px; height: 9px; border-radius: 50%; flex-shrink: 0;
}
.pacing-dot.ok      { background: var(--success); }
.pacing-dot.warning { background: var(--warning); }
.pacing-dot.over    { background: var(--danger); }
.pacing-dot.stalled { background: var(--text-tertiary); }
.pacing-dot.no_budget { background: var(--border); }

/* ── Platform pills ── */
.platform-pill {
  font-size: 0.68rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.platform-meta   { background: #E7F0FD; color: #1877F2; }
.platform-google { background: #FEF3E2; color: #EA8600; }

/* ── Brand pill ── */
.brand-pill {
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 10px;
  border-radius: 20px;
  letter-spacing: 0.02em;
}

/* ── Chart container ── */
.chart-wrap {
  height: 220px;
  position: relative;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  padding: 16px;
  margin-bottom: 24px;
}

/* ── Platform cards (dealer detail) ── */
.platform-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.platform-card-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.platform-card-title { font-size: 0.95rem; font-weight: 500; }
.platform-stat { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px solid var(--border-light); font-size: 0.85rem; }
.platform-stat:last-child { border-bottom: none; }
.platform-stat-label { color: var(--text-secondary); }
.platform-stat-val { font-family: var(--font-mono); font-weight: 500; }

/* ── Pacing bar ── */
.pacing-bar-wrap { margin-top: 12px; }
.pacing-bar-label { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--text-secondary); margin-bottom: 4px; }
.pacing-bar { height: 8px; border-radius: 4px; background: var(--border-light); overflow: hidden; }
.pacing-bar-fill { height: 100%; border-radius: 4px; transition: width 0.5s; }
.pacing-bar-fill.ok      { background: var(--success); }
.pacing-bar-fill.warning { background: var(--warning); }
.pacing-bar-fill.over    { background: var(--danger); }
.pacing-bar-fill.stalled { background: var(--text-tertiary); }
.pacing-bar-fill.no_budget { background: var(--border); }

/* ── Dealer search (dealer detail) ── */
.search-wrap { position: relative; }
.dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0; right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  max-height: 260px;
  overflow-y: auto;
  z-index: 50;
  display: none;
  box-shadow: var(--shadow-md);
}
.dropdown.open { display: block; }
.dd-item {
  padding: 10px 14px;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.1s;
}
.dd-item:hover { background: var(--bg-surface); }
.dd-item + .dd-item { border-top: 1px solid var(--border-light); }

/* ── Spinner ── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--text-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
}
.modal {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  max-width: 90vw; max-height: 90vh; overflow: auto;
  min-width: 440px;
}
.modal-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; border-bottom: 1px solid var(--border);
}
.modal-title { font-weight: 600; font-size: 1rem; }
.modal-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--text-secondary); line-height: 1; }
.modal-body { padding: 20px; }
.modal-footer {
  padding: 16px 20px; border-top: 1px solid var(--border);
  display: flex; justify-content: flex-end; gap: 10px;
}

/* ── Form rows ── */
.form-row { margin-bottom: 14px; }
.form-label { font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 4px; display: block; }

/* ── Responsive ── */
@media (max-width: 760px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .platform-grid { grid-template-columns: 1fr; }
  #view-container { padding: 20px 14px 60px; }
}

/* Tracking sub-tab bar */
.tracking-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 10px 16px;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-secondary);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}
.tracking-tab:hover { color: var(--text-primary); }
.tracking-tab.active { color: var(--text-primary); border-bottom-color: var(--text-primary); font-weight: 500; }