/**
 * Dashboard KPI Premium - Sprint 2.15
 * Stile per KPI cards e dashboard analytics
 */

/* ============================================================================
   KPI GRID LAYOUT
   ============================================================================ */

.kpi-dashboard {
    padding: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.kpi-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.kpi-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    color: var(--text-muted);
    font-size: 13px;
}

.kpi-meta .last-updated {
    display: flex;
    align-items: center;
    gap: 6px;
}

.kpi-meta .compare-selector {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
}

/* ============================================================================
   PRIMARY KPI CARDS (Big - Top Row)
   ============================================================================ */

.kpi-grid-primary {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.kpi-card:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.kpi-card.primary {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary, var(--bg-secondary)) 100%);
}

.kpi-card .kpi-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 16px;
}

.kpi-card .kpi-icon.occupancy {
    background: rgba(59, 130, 246, 0.1);
}

.kpi-card .kpi-icon.adr {
    background: rgba(16, 185, 129, 0.1);
}

.kpi-card .kpi-icon.revpar {
    background: rgba(139, 92, 246, 0.1);
}

.kpi-card .kpi-icon.revenue {
    background: rgba(245, 158, 11, 0.1);
}

.kpi-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.kpi-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.kpi-value .unit {
    font-size: 20px;
    font-weight: 500;
    margin-left: 2px;
}

.kpi-delta {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 6px;
}

.kpi-delta.increase {
    color: #22c55e;
    background: rgba(34, 197, 94, 0.1);
}

.kpi-delta.decrease {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.kpi-delta.stable {
    color: var(--text-muted);
    background: rgba(156, 163, 175, 0.1);
}

.kpi-delta .arrow {
    font-size: 14px;
}

/* ============================================================================
   SECONDARY KPI CARDS (Smaller - Second Row)
   ============================================================================ */

.kpi-grid-secondary {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

.kpi-card.secondary {
    padding: 16px 20px;
    border-radius: 12px;
}

.kpi-card.secondary .kpi-label {
    font-size: 11px;
    margin-bottom: 4px;
}

.kpi-card.secondary .kpi-value {
    font-size: 24px;
    margin-bottom: 0;
}

.kpi-card.secondary .kpi-value .unit {
    font-size: 14px;
}

/* Status indicators for operational cards */
.kpi-card.secondary.arrivals .kpi-value { color: #3b82f6; }
.kpi-card.secondary.departures .kpi-value { color: #f59e0b; }
.kpi-card.secondary.in-house .kpi-value { color: #22c55e; }
.kpi-card.secondary.pickup .kpi-value { color: #8b5cf6; }
.kpi-card.secondary.pending .kpi-value { color: #ef4444; }

/* ============================================================================
   QUICK ACTIONS BAR
   ============================================================================ */

.kpi-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
}

.kpi-action-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.kpi-action-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.kpi-action-btn .icon {
    font-size: 16px;
}

.kpi-action-btn .badge {
    background: var(--accent-color);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    margin-left: 4px;
}

.kpi-action-btn:hover .badge {
    background: white;
    color: var(--accent-color);
}

/* ============================================================================
   CHARTS SECTION
   ============================================================================ */

.kpi-charts {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

.kpi-chart-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
}

.kpi-chart-card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 20px 0;
}

.kpi-chart-placeholder {
    height: 200px;
    background: var(--bg-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* ============================================================================
   LOADING STATE
   ============================================================================ */

.kpi-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-muted);
}

.kpi-loading .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: kpi-spin 0.8s linear infinite;
}

@keyframes kpi-spin {
    to { transform: rotate(360deg); }
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 1200px) {
    .kpi-grid-primary {
        grid-template-columns: repeat(2, 1fr);
    }

    .kpi-grid-secondary {
        grid-template-columns: repeat(3, 1fr);
    }

    .kpi-charts {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .kpi-dashboard {
        padding: 16px;
    }

    .kpi-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .kpi-grid-primary {
        grid-template-columns: 1fr;
    }

    .kpi-grid-secondary {
        grid-template-columns: repeat(2, 1fr);
    }

    .kpi-actions {
        flex-wrap: wrap;
    }

    .kpi-value {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .kpi-grid-secondary {
        grid-template-columns: 1fr;
    }
}