:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-subtle: #eff6ff;
  --primary-border: #bfdbfe;
  
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --border-color: #e2e8f0;

  --success: #16a34a;
  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;

  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;

  --warning: #d97706;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;

  --ios-badge-bg: #000000;
  --ios-badge-color: #ffffff;
  --android-badge-bg: #059669;
  --android-badge-color: #ffffff;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07);

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-body);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Navbar */
.navbar-brand {
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--text-main) !important;
}

.brand-icon {
  color: var(--primary);
}

/* Cards & Surfaces */
.card-surface {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card-surface:hover {
  box-shadow: var(--shadow-md);
}

/* Store Badges */
.badge-ios {
  background-color: var(--ios-badge-bg);
  color: var(--ios-badge-color);
  font-weight: 600;
}

.badge-android {
  background-color: var(--android-badge-bg);
  color: var(--android-badge-color);
  font-weight: 600;
}

/* Trend Deltas */
.trend-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 600;
}

.trend-up {
  background-color: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.trend-down {
  background-color: var(--danger-bg);
  color: var(--danger);
  border: 1px solid var(--danger-border);
}

.trend-same {
  background-color: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
}

.trend-unranked {
  background-color: var(--bg-subtle);
  color: var(--text-light);
  border: 1px solid var(--border-color);
}

/* Unified Filter Pills */
.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.15s ease;
}

.filter-pill:hover {
  background-color: var(--bg-subtle);
  color: var(--text-main);
  border-color: var(--border-color);
}

.filter-pill.active {
  background-color: var(--primary);
  color: #ffffff;
  border-color: var(--primary);
  font-weight: 600;
}

.filter-pill-scroll {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.4rem;
  padding-bottom: 0.35rem;
  scrollbar-width: thin;
}

.filter-pill-scroll::-webkit-scrollbar {
  height: 4px;
}

.filter-pill-scroll::-webkit-scrollbar-thumb {
  background-color: var(--border-color);
  border-radius: 4px;
}

/* Time Filter Pills */
.time-filter-btn {
  font-size: 0.8125rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  text-decoration: none;
}

.time-filter-btn.active {
  background-color: var(--text-main);
  color: #ffffff;
  border-color: var(--text-main);
}

/* Chart Canvas container */
.chart-container {
  position: relative;
  width: 100%;
  height: 220px;
}

.chart-empty-state {
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background-color: var(--bg-subtle);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Country Flag / ISO Tag */
.country-flag-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
}

.flag-emoji {
  font-size: 1.15rem;
  line-height: 1;
}

.table-row-selected {
  background-color: var(--primary-subtle) !important;
}