/* ═══════════════════════════════════════════════════════════════════════════
   SALES ANALYTICS DASHBOARD - Styles
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --accent-blue: #00d4ff;
    --accent-green: #00ff88;
    --accent-purple: #8b5cf6;
    --accent-orange: #ff9f43;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6b6b7b;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

.dashboard {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 2rem;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.select-input {
    padding: 0.625rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
}

.btn-refresh {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    background: var(--accent-blue);
    border: none;
    border-radius: var(--radius);
    color: var(--bg-primary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-refresh:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.4);
}

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s;
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--accent-blue);
}

.kpi-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.kpi-icon.revenue {
    background: rgba(0, 255, 136, 0.15);
}

.kpi-icon.orders {
    background: rgba(0, 212, 255, 0.15);
}

.kpi-icon.customers {
    background: rgba(139, 92, 246, 0.15);
}

.kpi-icon.conversion {
    background: rgba(255, 159, 67, 0.15);
}

.kpi-content {
    display: flex;
    flex-direction: column;
}

.kpi-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.kpi-value {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0.25rem 0;
}

.kpi-change {
    font-size: 0.8rem;
    font-weight: 600;
}

.kpi-change.positive {
    color: var(--accent-green);
}

.kpi-change.negative {
    color: #ff4757;
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    min-height: 300px;
}

.chart-card.main-chart {
    grid-column: 1;
    min-height: 350px;
}

/* Chart container to prevent infinite resize */
.chart-card canvas {
    flex: 1;
    min-height: 0;
    max-height: 250px;
}

.chart-card.main-chart canvas {
    max-height: 280px;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-shrink: 0;
}

.chart-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.chart-legend {
    display: flex;
    gap: 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.legend-item .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-item .dot.revenue {
    background: var(--accent-green);
}

.legend-item .dot.orders {
    background: var(--accent-blue);
}

/* Table Section */
.table-section {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

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

.table-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.btn-export {
    padding: 0.5rem 1rem;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-export:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th,
td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 600;
}

td {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.status {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status.completed {
    background: rgba(0, 255, 136, 0.15);
    color: var(--accent-green);
}

.status.pending {
    background: rgba(255, 159, 67, 0.15);
    color: var(--accent-orange);
}

.status.processing {
    background: rgba(0, 212, 255, 0.15);
    color: var(--accent-blue);
}

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer a {
    color: var(--accent-blue);
    text-decoration: none;
}

/* Responsive */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }

    .chart-card.main-chart {
        grid-column: 1;
    }
}

@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
    }

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

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