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

:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --secondary-color: #22d3ee;
    --accent-color: #f43f5e;
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1b3a;
    --bg-tertiary: #252641;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
    --card-bg: #1e1f3a;
    --code-bg: #0f0f23;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* Header & Navigation */
.header {
    background: rgba(15, 15, 35, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Main Content */
.main {
    margin-top: 70px;
    min-height: calc(100vh - 70px);
}

/* Hero Section */
.hero {
    padding: 100px 0;
    background: radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(34, 211, 238, 0.1) 0%, transparent 50%);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* Buttons */
.btn {
    padding: 12px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.btn-small {
    padding: 8px 20px;
    font-size: 0.9rem;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* Code Block */
.code-block {
    background: var(--code-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.code-header {
    background: var(--bg-tertiary);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.code-dots {
    display: flex;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.code-title {
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
}

.code-content {
    padding: 20px;
}

.code-content pre {
    margin: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.6;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Tech Stack Section */
.tech-stack {
    padding: 80px 0;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.tech-category h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tech-item {
    background: var(--card-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.tech-item:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* CTA Section */
.cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.cta-content {
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.cta-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

/* Page Headers */
.page-header {
    padding: 80px 0;
    background: radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
}

.page-title {
    font-size: 3rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.page-subtitle {
    font-size: 1.2rem;
    text-align: center;
    color: var(--text-secondary);
}

/* Projects Section */
.projects {
    padding: 60px 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.project-placeholder {
    opacity: 0.7;
}

.project-content {
    padding: 30px;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 25px;
}

.tech-tag {
    background: var(--bg-tertiary);
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    color: var(--secondary-color);
    border: 1px solid var(--border-color);
}

.project-links {
    display: flex;
    gap: 15px;
}

/* Process Section */
.process {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.process-step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin: 0 auto 20px;
}

.process-step h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.process-step p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* About Section */
.about {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-stats {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.profile-card {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.profile-image {
    font-size: 5rem;
    margin-bottom: 20px;
}

.profile-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.profile-info p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.profile-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.badge {
    background: var(--bg-tertiary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* Skills Section */
.skills {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: var(--primary-color);
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-item span {
    color: var(--text-primary);
    font-weight: 500;
}

.skill-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 1s ease;
}

/* Experience Section */
.experience {
    padding: 80px 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    margin-bottom: 60px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-date {
    flex: 0 0 200px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.timeline-content {
    flex: 1;
    padding: 30px;
    background: var(--card-bg);
    border-radius: 12px;
    margin: 0 20px;
    border: 1px solid var(--border-color);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.timeline-company {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 15px;
}

.timeline-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Education Section */
.education {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.education-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 16px;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.education-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.education-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.education-card p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.education-period {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 15px;
}

/* Contact CTA Section */
.contact-cta {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
}

.contact-cta .cta-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    color: var(--text-primary);
}

.contact-cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.contact-icon {
    font-size: 2rem;
}

.contact-method strong {
    color: var(--text-primary);
    display: block;
    margin-bottom: 5px;
}

.contact-method p {
    color: var(--text-secondary);
    margin: 0;
}

/* Footer */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 20px;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    color: var(--text-primary);
    margin-bottom: 20px;
}

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

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

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .features-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        justify-content: center;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        flex-direction: column !important;
        margin-left: 60px;
    }
    
    .timeline-date {
        flex: none;
        width: auto;
        margin-bottom: 20px;
    }
    
    .timeline-content {
        margin: 0;
    }
    
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 80px 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .feature-card,
    .project-content,
    .education-card {
        padding: 25px 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}