:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --text-light: #7f8c8d;
    --font-main: 'Open Sans', sans-serif;
    --font-heading: 'Roboto Slab', serif;
}

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

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f9f9f9;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
    border-bottom: 2px solid var(--secondary-color);
}

.header h1 {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    font-weight: 400;
}

.image-container {
    margin: 30px auto;
    text-align: center;
    max-width: 800px;
}

.responsive-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    filter: contrast(120%);
}

.image-caption {
    margin-top: 15px;
    font-style: italic;
    color: var(--text-light);
    font-size: 0.95rem;
}

.timeline-section {
    margin: 50px 0;
}

.section-title {
    font-family: var(--font-heading);
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 30px;
    font-size: 2rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    background: var(--secondary-color);
    margin: 15px auto;
}

.timeline-list {
    list-style: none;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    display: flex;
    margin-bottom: 30px;
    position: relative;
    padding-left: 120px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 90px;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--secondary-color);
}

.year {
    position: absolute;
    left: 0;
    top: 0;
    width: 80px;
    padding: 5px 10px;
    background: var(--secondary-color);
    color: white;
    font-weight: bold;
    text-align: center;
    border-radius: 4px;
    font-family: var(--font-heading);
}

.event {
    padding: 15px;
    background: white;
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    flex: 1;
    position: relative;
}

.event::before {
    content: '';
    position: absolute;
    left: -10px;
    top: 15px;
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    border-right: 10px solid white;
}

.quote {
    max-width: 700px;
    margin: 50px auto;
    padding: 30px;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    position: relative;
    font-style: italic;
}

.quote::before {
    content: '"';
    position: absolute;
    top: 0;
    left: 0;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.1);
    font-family: var(--font-heading);
}

.quote::after {
    content: '"';
    position: absolute;
    bottom: 2px;
    right: 192px;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.1);
    font-family: var(--font-heading);
}

.quote p {
    position: relative;
    z-index: 1;
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.quote footer {
    text-align: right;
    font-style: normal;
    font-size: 0.9rem;
    opacity: 0.8;
}

.more-info {
    text-align: center;
    margin: 50px 0;
    padding: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.external-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.external-link:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

.page-footer {
    text-align: center;
    padding: 20px;
    margin-top: 50px;
    background: var(--primary-color);
    color: white;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .header h1 {
        font-size: 2.2rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .timeline-item {
        padding-left: 100px;
    }

    .timeline-item::before {
        left: 70px;
    }

    .year {
        width: 60px;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }

    .timeline-item {
        flex-direction: column;
        padding-left: 0;
    }

    .timeline-item::before {
        display: none;
    }

    .year {
        position: static;
        margin-bottom: 5px;
    }

    .event::before {
        display: none;
    }

    .quote {
        padding: 20px;
    }
}