:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    background-color: #f5f7fa;
}

header {
    text-align: center;
    padding: 2.5rem 0;
    border-bottom: 2px solid var(--secondary-color);
    margin-bottom: 2rem;
    background-color: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--primary-color));
}

h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 2.5rem;
    font-weight: 700;
}

.title {
    color: var(--secondary-color);
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.contact-info a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    background-color: rgba(52, 152, 219, 0.1);
}

.contact-info a:hover {
    color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.2);
    transform: translateY(-2px);
}

section {
    margin-bottom: 2rem;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

section:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--secondary-color);
    font-size: 1.8rem;
    font-weight: 600;
}

.experience-item {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--light-bg);
    border-radius: 6px;
    transition: var(--transition);
}

.experience-item:hover {
    background-color: white;
    box-shadow: var(--shadow);
}

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

.company {
    font-weight: bold;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.date {
    color: var(--secondary-color);
    font-weight: 500;
    background-color: rgba(52, 152, 219, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
}

.keywords {
    margin-top: 1rem;
    font-style: italic;
    color: #666;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.keywords span {
    background-color: rgba(52, 152, 219, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    header {
        padding: 2rem 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .experience-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .date {
        margin-top: 0.5rem;
    }
    
    section {
        padding: 1.5rem;
    }
}