/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #0f172a;
    --secondary-color: #64748b;
    --accent-color: #3b82f6;
    --surface-color: #ffffff;
    --surface-secondary: #f8fafc;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-subtle: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--surface-color);
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 2rem;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

h4 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    text-align: center;
    margin-bottom: 4rem;
}

.hero-content {
    max-width: 600px;
    margin: 0 auto;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 0 auto 1rem auto;
    box-shadow: var(--shadow-md);
    border: 3px solid rgba(59, 130, 246, 0.15);
}

.name {
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.location {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.description {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
}

/* Sections */
section {
    margin-bottom: 4rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease-out forwards;
}

section:nth-child(2) { animation-delay: 0.1s; }
section:nth-child(3) { animation-delay: 0.2s; }
section:nth-child(4) { animation-delay: 0.3s; }
section:nth-child(5) { animation-delay: 0.4s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    background: var(--surface-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.contact-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s ease;
}

.contact-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.contact-item:hover::before {
    left: 100%;
}

.contact-icon {
    font-size: 1.25rem;
    margin-right: 0.75rem;
    opacity: 0.8;
}

/* Job Cards */
.job-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
}

.job-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

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

.job-header {
    margin-bottom: 1.5rem;
}

.company {
    font-weight: 500;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
}

.duration {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

.achievements {
    list-style: none;
    margin-top: 1rem;
}

.achievements li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.achievements li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: 600;
}

/* Project Cards */
.project-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #10b981, #059669);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

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

.project-description {
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-link {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
}

.project-link.primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.project-link.primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.project-link.secondary {
    background: var(--surface-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.project-link.secondary:hover {
    background: var(--surface-color);
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--surface-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all 0.3s ease;
}

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

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--surface-color);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.skill-tag:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: scale(1.05);
}

/* Footer */
.footer {
    margin-top: 6rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-content p {
    color: var(--text-muted);
    margin: 0;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--accent-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .hero {
        padding: 2rem 0;
        margin-bottom: 3rem;
    }
    
    section {
        margin-bottom: 3rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .project-links {
        flex-direction: column;
    }
    
    .project-link {
        text-align: center;
        justify-content: center;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem 0.75rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .job-card,
    .project-card,
    .skill-category {
        padding: 1.5rem;
    }
}

/* Print Styles */
@media print {
    .hero {
        page-break-inside: avoid;
    }
    
    .job-card,
    .project-card {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
}