:root {
    --bg: #f0f0f0;
    --bg-card: #f8f8f8;
    --text: #1a1a1a;
    --text-secondary: #555;
    --accent: #2563eb;
    --accent-secondary: #7c3aed;
    --border: #ddd;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

a:focus-visible,
.btn-cv:focus-visible,
.btn-project:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem 2rem 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.25rem;
}

.social-links {
    display: flex;
    gap: 1.25rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.social-links a {
    transition: color 0.2s, transform 0.2s;
}

.social-links a:hover {
    opacity: 1;
    transform: translateY(-2px);
}

.social-links svg {
    width: 22px;
    height: 22px;
}

.social-links a[aria-label="GitHub"] {
    color: #888;
}

.social-links a[aria-label="GitHub"]:hover {
    color: #24292e;
}

.social-links a[aria-label="Medium"] {
    color: #888;
}

.social-links a[aria-label="Medium"]:hover {
    color: #00ab6c;
}

.social-links a[aria-label="LinkedIn"] {
    color: #888;
}

.social-links a[aria-label="LinkedIn"]:hover {
    color: #0a66c2;
}

.social-links a[aria-label="Instagram"] {
    color: #888;
}

.social-links a[aria-label="Instagram"]:hover {
    color: #e1306c;
}

.contact-info {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

.contact-info a {
    color: var(--text-secondary);
}

.contact-info a:hover {
    color: var(--accent);
}

.separator {
    margin: 0 0.5rem;
    color: var(--text-secondary);
    opacity: 0.4;
}

.btn-cv {
    display: inline-block;
    padding: 0.6rem 1.75rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: opacity 0.2s, transform 0.2s;
}

.btn-cv:hover {
    opacity: 0.9;
    transform: translateY(-1px);
}

.about,
.projects {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem;
}

h2 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
    color: var(--accent);
}

.about p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.about strong {
    color: var(--text);
}

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

.project-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.5rem;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.project-card:hover {
    border-color: #ccc;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.project-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-links {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.btn-project {
    display: inline-block;
    padding: 0.4rem 1rem;
    border: 1px solid var(--accent);
    border-radius: 6px;
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 500;
    transition: background-color 0.2s, color 0.2s;
}

.btn-project:hover {
    background-color: var(--accent);
    color: #fff;
    opacity: 1;
}

.badge-coming-soon {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    background-color: #e8e8e8;
    color: #666;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.footer {
    max-width: 720px;
    margin: 0 auto;
    padding: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.85rem;
}

.footer-links {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
}

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

.footer-social {
    margin-bottom: 1rem;
}

.footer-social a {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

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

.copyright {
    color: var(--text-secondary);
    opacity: 0.4;
    font-size: 0.8rem;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out both;
}

.about.fade-in {
    animation-delay: 0.1s;
}

.projects.fade-in {
    animation-delay: 0.2s;
}

.footer.fade-in {
    animation-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
    .fade-in {
        animation: none;
    }
}

@media (min-width: 640px) {
    .hero h1 {
        font-size: 3.5rem;
    }

    .subtitle {
        font-size: 1.25rem;
    }

    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}