/* ============================================================
   EE Tracker — Dashboard Styles
   ============================================================ */

:root {
    --bg-primary: #0a0e1a;
    --bg-card: #111827;
    --bg-card-hover: #1a2236;
    --border: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #3b82f6;
    --accent-green: #10b981;
    --accent-purple: #8b5cf6;
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;
    --accent-cyan: #06b6d4;
    --gradient-blue: linear-gradient(135deg, #1e40af, #3b82f6);
    --gradient-green: linear-gradient(135deg, #065f46, #10b981);
    --gradient-purple: linear-gradient(135deg, #5b21b6, #8b5cf6);
    --gradient-amber: linear-gradient(135deg, #92400e, #f59e0b);
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Header */
.header {
    background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
    border-bottom: 1px solid var(--border);
    padding: 2rem 0;
    position: relative;
    overflow: hidden;
}
.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -10%;
    width: 120%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 50%, rgba(59,130,246,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 50%, rgba(139,92,246,0.06) 0%, transparent 60%);
    pointer-events: none;
}
.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.logo-icon { font-size: 1.8rem; }
.logo h1 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}
.badge {
    background: var(--accent-purple);
    color: white;
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    max-width: 1400px;
    margin: -1.5rem auto 2rem;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}
.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}
.stat-card.accent-blue::before { background: var(--gradient-blue); }
.stat-card.accent-green::before { background: var(--gradient-green); }
.stat-card.accent-purple::before { background: var(--gradient-purple); }
.stat-card.accent-amber::before { background: var(--gradient-amber); }

.stat-label {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}
.stat-value {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}
.stat-sub {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.4rem;
}

/* Charts */
.charts-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    max-width: 1400px;
    margin: 0 auto 1.25rem;
    padding: 0 2rem;
}
.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.chart-card.wide {
    grid-column: 1 / -1;
}
.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem 0.75rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}
.chart-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}
.chart-controls {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}
.chart-body {
    padding: 0.5rem 1.5rem 1.25rem;
    height: 320px;
    position: relative;
}

/* Buttons */
.btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}
.btn.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}

select {
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font);
    cursor: pointer;
}

/* Tables */
.table-section {
    max-width: 1400px;
    margin: 0 auto 1.25rem;
    padding: 0 2rem;
}
.table-wrap {
    overflow-x: auto;
    padding: 0 1.5rem 1.25rem;
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}
thead th {
    text-align: left;
    padding: 0.75rem 1rem;
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
tbody td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid rgba(30,41,59,0.5);
    color: var(--text-secondary);
    white-space: nowrap;
}
tbody tr:hover td {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}
.tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 500;
}
.tag-general { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.tag-cec { background: rgba(16,185,129,0.15); color: var(--accent-green); }
.tag-pnp { background: rgba(139,92,246,0.15); color: var(--accent-purple); }
.tag-category { background: rgba(245,158,11,0.15); color: var(--accent-amber); }

/* Timeline */
.timeline {
    padding: 1rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.timeline-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}
.timeline-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}
.timeline-dot.critical { background: var(--accent-red); box-shadow: 0 0 8px rgba(239,68,68,0.4); }
.timeline-dot.high { background: var(--accent-amber); box-shadow: 0 0 8px rgba(245,158,11,0.3); }
.timeline-dot.medium { background: var(--accent-blue); }
.timeline-dot.low { background: var(--text-muted); }
.timeline-content { flex: 1; }
.timeline-date {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.timeline-title {
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-top: 0.1rem;
}
.timeline-type {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .charts-row { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .chart-header { flex-direction: column; align-items: flex-start; }
    .header-inner { padding: 0 1rem; }
    .stats-grid, .charts-row, .table-section { padding: 0 1rem; }
}