/* ==========================================================================
   QuantPits-Arena: Reusable UI Components
   ========================================================================== */

/* Glassmorphic Panel Cards */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  position: relative;
}

.card:hover {
  border-color: var(--border-medium);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 0.75rem;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-subtitle {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-top: 0.2rem;
}

/* KPI Summary Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.kpi-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-cyan);
  opacity: 0.5;
}

.kpi-card.positive::before { background: var(--accent-positive); opacity: 0.8; }
.kpi-card.negative::before { background: var(--accent-negative); opacity: 0.8; }
.kpi-card.purple::before { background: var(--brand-purple); opacity: 0.8; }

.kpi-label {
  font-size: 0.78rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-tertiary);
}

.kpi-value {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.1;
  color: var(--text-primary);
}

.kpi-value.positive { color: var(--accent-positive); }
.kpi-value.negative { color: var(--accent-negative); }

.kpi-subtext {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* Compact Horizontal Filter Bar */
.filters-card-compact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  margin-bottom: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.filters-card-compact .filter-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.filters-card-compact .filter-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.filters-card-compact .filter-select,
.filters-card-compact .filter-input {
  background: var(--bg-base);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}

.filters-card-compact .filter-select:focus,
.filters-card-compact .filter-input:focus {
  border-color: var(--brand-cyan);
}

/* Global Filter Toolbar */
.filter-toolbar {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.filter-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.filter-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-tertiary);
}

.filter-select, .filter-input {
  background: var(--bg-base);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}

.filter-select:focus, .filter-input:focus {
  border-color: var(--brand-cyan);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.2);
}

.filter-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-bright);
}

.filter-btn.active {
  background: rgba(56, 189, 248, 0.15);
  border-color: var(--brand-cyan);
  color: var(--brand-cyan);
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-positive {
  background: var(--accent-positive-bg);
  border-color: var(--accent-positive-border);
  color: var(--accent-positive);
}

.badge-negative {
  background: var(--accent-negative-bg);
  border-color: var(--accent-negative-border);
  color: var(--accent-negative);
}

.badge-cyan {
  background: var(--accent-cyan-bg);
  border-color: rgba(6, 182, 212, 0.3);
  color: #38bdf8;
}

.badge-purple {
  background: rgba(168, 85, 247, 0.12);
  border-color: rgba(168, 85, 247, 0.3);
  color: #c084fc;
}

.badge-neutral {
  background: rgba(148, 163, 184, 0.12);
  border-color: rgba(148, 163, 184, 0.25);
  color: var(--text-secondary);
}

.badge-warning {
  background: var(--accent-warning-bg);
  border-color: var(--accent-warning-border);
  color: var(--accent-warning);
}

/* Interactive Data Tables */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  background: var(--bg-surface);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.data-table th {
  background: var(--bg-subtle);
  color: var(--text-tertiary);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.data-table th:hover {
  color: var(--text-primary);
}

.data-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  white-space: nowrap;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-primary);
}

.clickable-row {
  cursor: pointer;
}

/* Chart Container Containers */
.chart-container {
  width: 100%;
  height: 420px;
  position: relative;
}

.chart-container.tall {
  height: 520px;
}

.chart-container.compact {
  height: 280px;
}

/* Button UI */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-cyan), var(--brand-blue));
  color: #fff;
  box-shadow: var(--shadow-glow-cyan);
}
.btn-primary:hover {
  opacity: 0.92;
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  border-color: var(--border-medium);
  color: var(--text-primary);
}
.btn-secondary:hover {
  background: var(--border-subtle);
  border-color: var(--border-bright);
  text-decoration: none;
}

/* Tab Navigation */
.tabs-nav {
  display: flex;
  gap: 0.5rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 1.25rem;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-tertiary);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.6rem 1rem;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--brand-cyan);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--brand-cyan);
}

/* Chart Header Toolbar & Metric Switcher */
.chart-header-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.chart-title-group {
  display: flex;
  flex-direction: column;
}

.chart-title-text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.chart-subtitle-text {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.chart-metric-btn-group {
  display: inline-flex;
  background: var(--bg-surface);
  padding: 3px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  gap: 2px;
}

.chart-metric-btn {
  background: transparent;
  border: 1px solid transparent;
  padding: 0.3rem 0.75rem;
  font-size: 0.76rem;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chart-metric-btn:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}

.chart-metric-btn.active {
  color: var(--brand-cyan);
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.35);
  font-weight: 600;
}