/* Color Palette */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #1abc9c;
    --light-bg: #f8f9fa;
    --dark-text: #2c3e50;
    --light-text: #7f8c8d;
    --white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 12px rgba(0,0,0,0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: var(--light-bg);
}

/* Navigation */
.navbar {
    background-color: var(--primary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    color: var(--white);
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(255,255,255,0.1);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}

.hero-description {
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

/* Overview Grid */
.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.overview-card {
    background: var(--white);
    border-radius: 8px;
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.overview-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.overview-card h2 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.overview-card p {
    color: var(--light-text);
    margin-bottom: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: #2980b9;
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
}

.btn-outline:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

/* Sections */
.about-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 3rem;
    box-shadow: var(--shadow);
}

.about-section h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.about-section p {
    margin-bottom: 1rem;
    color: var(--dark-text);
}

/* Stats */
.quick-stats {
    text-align: center;
    margin-bottom: 3rem;
}

.quick-stats h2 {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.stat-item {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--secondary-color);
}

.stat-label {
    color: var(--light-text);
}

/* Content Sections */
.content-section {
    background: var(--white);
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.content-section h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-color);
}

.content-section h3 {
    color: var(--secondary-color);
    margin: 1.5rem 0 0.5rem 0;
}

.content-section ul,
.content-section ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.content-section li {
    margin-bottom: 0.5rem;
}

/* Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--secondary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--secondary-color);
    border: 2px solid var(--white);
}

.timeline-date {
    color: var(--light-text);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.timeline-title {
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.timeline-content {
    color: var(--dark-text);
}

/* Results Table */
.results-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

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

.results-table th {
    background-color: var(--light-bg);
    font-weight: 600;
    color: var(--primary-color);
}

.results-table tr:hover {
    background-color: var(--light-bg);
}

/* Tags */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

.tag-primary {
    background-color: #e3f2fd;
    color: #1976d2;
}

.tag-success {
    background-color: #e8f5e9;
    color: #388e3c;
}

.tag-warning {
    background-color: #fff3e0;
    color: #f57c00;
}

/* Entry Cards */
.entry-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: box-shadow 0.3s;
}

.entry-card:hover {
    box-shadow: var(--shadow-hover);
}

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

.entry-title {
    color: var(--primary-color);
    font-size: 1.25rem;
    margin: 0;
}

.entry-date {
    color: var(--light-text);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .overview-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 2rem 1rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .footer {
        display: none;
    }
    
    .content-section {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}