/* ========================================
   PAC Study - Centralized Styles
   ======================================== */

/* CSS Variables */
:root {
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-tertiary: #252b3b;
    --text-primary: #e8eaed;
    --text-secondary: #9ca3af;
    --border-color: #374151;
    --accent-cyan: #06b6d4;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --accent-yellow: #fbbf24;
    --accent-purple: #8b5cf6;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

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

/* Base Styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
}

/* Navigation Hamburger Toggle */
.nav-toggle {
    position: fixed;
    top: 0.5rem;
    left: 0.5rem;
    z-index: 1000;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 0.3rem 0.55rem;
    cursor: pointer;
    font-size: 1.15rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
    min-width: 36px;
    min-height: 36px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-toggle:hover,
.nav-toggle.active {
    background: var(--accent-cyan);
    color: white;
    transform: scale(1.07);
}

/* Navigation Sidebar */
.nav-sidebar {
    position: fixed;
    top: 0;
    left: -320px;
    width: 320px;
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 2px solid var(--border-color);
    overflow-y: auto;
    transition: left 0.3s ease;
    z-index: 999;
    padding: 4.5rem 1.5rem 1.5rem;
}

.nav-sidebar.active {
    left: 0;
}

.nav-sidebar h3 {
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.nav-sidebar ul {
    list-style: none;
    padding: 0;
}

.nav-sidebar li {
    margin-bottom: 0.75rem;
}

.nav-sidebar a {
    color: var(--text-primary);
    text-decoration: none;
    display: block;
    padding: 10px 15px;
    border-radius: 6px;
    transition: all 0.2s ease;
    font-size: 0.95em;
}

.nav-sidebar a:hover {
    background: var(--bg-tertiary);
    color: var(--accent-cyan);
    padding-left: 20px;
}

/* Navigation Overlay */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    z-index: 998;
}

.nav-overlay.active {
    display: block;
}

/* Header */
header {
    text-align: center;
    padding: 2rem 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid var(--border-color);
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--accent-cyan);
}

header .subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* Typography */
h2 {
    color: var(--accent-cyan);
    margin: 2rem 0 1rem;
    font-size: 2rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h3 {
    color: var(--accent-purple);
    margin: 1.5rem 0 1rem;
    font-size: 1.5rem;
}

h4 {
    color: var(--accent-green);
    margin: 1rem 0 0.5rem;
    font-size: 1.2rem;
}

h5 {
    color: var(--accent-yellow);
    margin: 0.75rem 0 0.5rem;
    font-size: 1rem;
}

p {
    margin: 1rem 0;
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ul, ol {
    margin: 1rem 0 1rem 2rem;
}

li {
    margin: 0.5rem 0;
}

/* Alerts */
.alert {
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
    border-left: 4px solid;
    color: var(--text-primary);
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border-color: var(--accent-green);
}

.alert-info {
    background: rgba(6, 182, 212, 0.15);
    border-color: var(--accent-cyan);
}

.alert-warning {
    background: rgba(251, 191, 36, 0.15);
    border-color: var(--accent-yellow);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--accent-red);
}

/* Ensure all alert text is readable */
.alert h3, .alert h4, .alert h5,
.alert p, .alert ul, .alert ol {
    color: var(--text-primary);
}

.alert .h4, .alert .h5 {
    color: var(--text-primary);
}

/* Sections */
.section {
    background: var(--bg-secondary);
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 8px;
    border-left: 4px solid var(--accent-cyan);
}

/* Chart Containers */
.chart-container {
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: var(--shadow);
}

.chart-title {
    font-size: 1.3rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    text-align: center;
}

.chart-note {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    font-style: italic;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: var(--bg-secondary);
}

thead {
    background: var(--bg-tertiary);
}

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

th {
    color: var(--accent-cyan);
    font-weight: 600;
}

tr:hover {
    background: var(--bg-tertiary);
}

/* Matrix Tables */
.matrix-table {
    font-size: 0.85rem;
    margin: 2rem 0;
}

.matrix-table th {
    position: sticky;
    top: 0;
    background: var(--bg-tertiary);
    z-index: 10;
    font-size: 0.75rem;
    padding: 0.5rem;
}

.matrix-table td {
    text-align: center;
    padding: 0.4rem;
}

.matrix-table .boundary-header {
    text-align: left;
    font-weight: bold;
    position: sticky;
    left: 0;
    background: var(--bg-tertiary);
    z-index: 11;
}

.matrix-table .boundary-cell {
    text-align: left;
    font-weight: 500;
    position: sticky;
    left: 0;
    background: var(--bg-secondary);
    z-index: 5;
}

.matrix-table td.diagonal {
    font-weight: bold;
    font-size: 1.1em;
}

.matrix-table td.zero {
    color: var(--text-secondary);
    opacity: 0.5;
}

/* School Color Classes - High Contrast */
.cottonwood { background-color: rgba(220, 38, 38, 0.3) !important; color: #fecaca !important; }
.crestview { background-color: rgba(234, 88, 12, 0.3) !important; color: #fed7aa !important; }
.driggs { background-color: rgba(202, 138, 4, 0.3) !important; color: #fef08a !important; }
.eastwood { background-color: rgba(101, 163, 13, 0.3) !important; color: #d9f99d !important; }
.morningside { background-color: rgba(5, 150, 105, 0.3) !important; color: #a7f3d0 !important; }
.oakridge { background-color: rgba(6, 182, 212, 0.3) !important; color: #a5f3fc !important; }
.oakwood { background-color: rgba(59, 130, 246, 0.3) !important; color: #bfdbfe !important; }
.penn { background-color: rgba(139, 92, 246, 0.3) !important; color: #ddd6fe !important; }
.rosecrest { background-color: rgba(217, 70, 239, 0.3) !important; color: #f3e8ff !important; }
.upland { background-color: rgba(236, 72, 153, 0.3) !important; color: #fce7f3 !important; }
.other { background-color: rgba(107, 114, 128, 0.2) !important; color: #d1d5db !important; }

/* Grid Layout */
.row {
    display: flex;
    gap: 2rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.col-md-6 {
    flex: 1;
    min-width: 300px;
}

.col-md-4 {
    flex: 1;
    min-width: 250px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent-cyan);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-cyan);
}

/* Methodology Box */
.methodology {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--accent-purple);
    margin: 1.5rem 0;
}

/* Source Notes */
.source-note {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
    margin: 1rem 0;
}

/* Info Boxes */
.info-box {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 8px;
    margin: 1.5rem 0;
    border-left: 4px solid var(--accent-yellow);
}

/* Color Legend */
.color-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 8px;
    margin: 1.5rem 0;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.legend-color {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 1.75rem;
    }
    h2 {
        font-size: 1.5rem;
    }
    h3 {
        font-size: 1.25rem;
    }
    .row {
        flex-direction: column;
    }
    .col-md-6,
    .col-md-4 {
        min-width: 100%;
    }
    .stats-grid {
        grid-template-columns: 1fr;
    }
    .matrix-table {
        font-size: 0.7rem;
    }
    .chart-container {
        padding: 1rem;
    }
    .nav-sidebar {
        width: 280px;
        left: -280px;
    }
    .nav-toggle {
        padding: 0.2rem 0.4rem;
        font-size: 1rem;
        min-width: 30px;
        min-height: 30px;
    }
}

@media (max-width: 576px) {
    body {
        padding: 0.5rem;
    }
    header h1 {
        font-size: 1.5rem;
    }
    .section,
    .chart-container {
        padding: 1rem;
    }
    .stat-value {
        font-size: 1.5rem;
    }
}