/* styles.css */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #f9f9f9;
    --text-color: #333;
}

[data-theme="dark"] {
    --primary-color: #ecf0f1;
    --secondary-color: #3498db;
    --background-color: #2c3e50;
    --text-color: #ecf0f1;
}

body {
    font-family: 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: all 0.3s ease;
}

.header {
    background: var(--primary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

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

.section {
    background: white;
    padding: 2rem;
    margin: 2rem 0;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.timeline-item {
    border-left: 3px solid var(--secondary-color);
    padding-left: 1.5rem;
    margin: 2rem 0;
}

.tech-stack {
    display: flex;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
}

.tech-stack li {
    background: var(--secondary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.theme-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: var(--secondary-color);
    color: white;
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .tech-stack {
        flex-wrap: wrap;
    }
}

@media print {
    .theme-toggle {
        display: none;
    }
    
    .section {
        box-shadow: none;
    }
}