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

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --background: #ffffff;
    --background-alt: #f9fafb;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--background-alt);
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.profile-header {
    text-align: center;
    background: var(--background);
    padding: 3rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.profile-image:hover {
    transform: scale(1.05);
}

.name {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.title {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: 1rem;
    color: var(--text-light);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    background: var(--background);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--background-alt);
    border-radius: 50%;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

section {
    background: var(--background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 0.25rem;
}

.about p {
    font-size: 1.125rem;
    color: var(--text-light);
    line-height: 1.8;
}

.cv-item {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.cv-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.cv-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.cv-date {
    font-size: 0.875rem;
    color: var(--text-light);
    background: var(--background-alt);
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-weight: 500;
}

.cv-company {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.cv-description {
    color: var(--text-light);
    margin-left: 1.5rem;
}

.cv-description li {
    margin-bottom: 0.5rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: default;
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.footer {
    text-align: center;
    background: var(--background);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    color: var(--text-light);
    font-size: 0.875rem;
}

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

    .profile-header {
        padding: 2rem 1rem;
    }

    .name {
        font-size: 2rem;
    }

    .title {
        font-size: 1.25rem;
    }

    .profile-image {
        width: 120px;
        height: 120px;
    }

    section {
        padding: 1.5rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .cv-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .social-links {
        gap: 1rem;
    }

    .social-link {
        width: 44px;
        height: 44px;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #3b82f6;
        --secondary-color: #2563eb;
        --text-color: #f9fafb;
        --text-light: #d1d5db;
        --background: #1f2937;
        --background-alt: #111827;
        --border-color: #374151;
    }
}