/* Base Styles */
:root {
    --black: #000000;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

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

body {
    font-family: var(--font-sans);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
    font-feature-settings: "cv05" on, "cv11" on;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
    line-height: 1.2;
    font-weight: 600;
}

a {
    text-decoration: none;
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
custom-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

/* Hero Section */
.hero {
    padding: 10rem 0 6rem;
    text-align: center;
    background-color: var(--white);
}

.hero-content {
    max-width: 48rem;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 2.5rem;
    max-width: 36rem;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--black);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--gray-800);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--black);
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-300);
}

/* Work Section */
.work-section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.section-header p {
    color: var(--gray-600);
    font-size: 1.125rem;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.project-card {
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover {
    transform: translateY(-4px);
}

.project-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    background-color: var(--gray-100);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-info {
    padding: 1.5rem 0;
}

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

.project-info p {
    color: var(--gray-600);
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.8125rem;
    color: var(--gray-500);
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background-color: var(--gray-50);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    color: var(--gray-700);
    margin-bottom: 1.5rem;
    font-size: 1.0625rem;
    line-height: 1.7;
}

.skills {
    margin-top: 2.5rem;
}

.skills h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.skill-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.skill-item p {
    color: var(--gray-600);
    font-size: 0.9375rem;
    margin-bottom: 0;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.profile-placeholder {
    width: 100%;
    max-width: 300px;
    aspect-ratio: 1;
    border-radius: 0.5rem;
    overflow: hidden;
    background-color: var(--gray-200);
}

.profile-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Contact Section */
.contact-section {
    padding: 6rem 0;
}

.contact-content {
    max-width: 36rem;
    margin: 0 auto;
    text-align: center;
}

.contact-content h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.contact-content p {
    color: var(--gray-600);
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.contact-link {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--black);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

.contact-link:hover {
    border-bottom-color: var(--black);
}

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

.social-link {
    color: var(--gray-600);
    font-size: 0.9375rem;
    transition: color 0.2s ease;
}

.social-link:hover {
    color: var(--black);
}

/* Footer */
footer {
    padding: 3rem 0;
    border-top: 1px solid var(--gray-200);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    color: var(--gray-500);
    font-size: 0.875rem;
}

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

.footer-links a {
    color: var(--gray-500);
    transition: color 0.2s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 8rem 0 4rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .work-section {
        padding: 4rem 0;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-section {
        padding: 4rem 0;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-section {
        padding: 4rem 0;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero {
        padding: 6rem 0 3rem;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .work-section {
        padding: 3rem 0;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .projects-grid {
        gap: 1.5rem;
    }
}