:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent-primary: #6366f1;
    --accent-hover: #4f46e5;
    --border-color: #333333;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-primary);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 8rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent-primary) 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

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

/* Buttons */
.btn {
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: var(--text-primary);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-secondary);
    border-color: var(--accent-primary);
}

/* Featured Section */
.featured {
    padding: 5rem 0;
}

.featured h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: transform 0.3s, border-color 0.3s;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
    border-radius: 8px;
    margin-bottom: 1rem;
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

.project-link {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
}

.project-link:hover {
    text-decoration: underline;
}

/* About Preview */
.about-preview {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    text-align: center;
}

.about-preview h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.about-preview p {
    max-width: 700px;
    margin: 0 auto 2rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Blog Styles */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 3rem 0;
}

.blog-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, border-color 0.3s;
}

.blog-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.blog-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.blog-card h3 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.blog-excerpt {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.read-more {
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 600;
}

.read-more:hover {
    text-decoration: underline;
}

/* Footer */
.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.footer-section p {
    color: var(--text-secondary);
}

.footer-section ul {
    list-style: none;
}

.footer-section a {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Contact Form */
.contact-section {
    padding: 5rem 0;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Page Header */
.page-header {
    padding: 5rem 0 3rem;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* About Page Styles */
.about-content {
    padding: 3rem 0;
}

.about-intro {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

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

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.about-image {
    width: 100%;
    height: 400px;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-primary) 100%);
    border-radius: 12px;
}

.skills-section, .journey-section {
    margin-bottom: 4rem;
}

.skills-section h2, .journey-section h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

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

.skill-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: transform 0.3s, border-color 0.3s;
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.skill-card h3 {
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

.skill-card p {
    color: var(--text-secondary);
}

.journey-section p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

/* Contact Page Styles */
.contact-section {
    padding: 3rem 0;
}

.contact-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.contact-info {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: 12px;
}

.contact-info h3 {
    margin-bottom: 1.5rem;
}

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

.social-link {
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s;
}

.social-link:hover {
    background-color: var(--bg-primary);
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

/* Blog Section */
.blog-header {
    padding: 5rem 0 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.blog-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.blog-header p {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.blog-section {
    padding: 2rem 0 5rem;
}

.portfolio-section {
    padding: 2rem 0 5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-secondary);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .about-intro {
        grid-template-columns: 1fr;
    }

    .about-image {
        height: 250px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .social-links {
        flex-direction: column;
    }
}