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

:root {
    /* Colors - Shadcn inspired */
    --background: #0a0a0a;
    --background-secondary: #1a1a1a;
    --border: #2a2a2a;
    --card: #1a1a1a;
    --card-foreground: #ffffff;
    --primary: #3b82f6;
    --primary-foreground: #ffffff;
    --secondary: #10b981;
    --secondary-foreground: #ffffff;
    --muted: #a1a1aa;
    --muted-foreground: #71717a;
    --accent: #f59e0b;
    --destructive: #ef4444;
    --ring: #3b82f6;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px 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);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition: all 0.2s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--background);
    color: var(--card-foreground);
    line-height: 1.6;
    font-size: var(--font-size-base);
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-4);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-6);
    }
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.nav-brand .nav-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--card-foreground);
}

.nav-menu {
    display: none;
    list-style: none;
    gap: var(--spacing-6);
}

.nav-link {
    color: var(--muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: var(--transition);
}

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

.nav-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--card-foreground);
    font-size: var(--font-size-xl);
    cursor: pointer;
}

@media (min-width: 768px) {
    .nav-menu {
        display: flex;
    }
    
    .nav-toggle {
        display: none;
    }
}

/* Mobile Menu */
.nav-menu.active {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--background-secondary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: var(--spacing-4);
    gap: var(--spacing-4);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: var(--font-size-sm);
    gap: var(--spacing-2);
}

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

.btn-primary:hover {
    background-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--card-foreground);
    border: 1px solid var(--border);
}

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

/* Hero Section */
.hero {
    padding: calc(4rem + var(--spacing-20)) 0 var(--spacing-20);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    gap: var(--spacing-12);
    align-items: center;
}

.hero-image {
    display: flex;
    justify-content: center;
}

.hero-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    object-fit: cover;
}

.hero-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-2);
    background: linear-gradient(135deg, var(--card-foreground), var(--muted));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--primary);
    margin-bottom: var(--spacing-4);
    font-weight: 500;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--muted);
    margin-bottom: var(--spacing-6);
    max-width: 600px;
}

.hero-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-8);
}

.skill-badge {
    background-color: var(--background-secondary);
    color: var(--card-foreground);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.skill-badge:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-8);
    flex-wrap: wrap;
}

.hero-social {
    display: flex;
    gap: var(--spacing-4);
}

.social-link {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background-color: var(--background-secondary);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    text-decoration: none;
    transition: var(--transition);
}

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

@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 2fr;
    }
    
    .hero-title {
        font-size: var(--font-size-5xl);
    }
}

/* Section Styles */
section {
    padding: var(--spacing-20) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-16);
    color: var(--card-foreground);
}

/* About Section */
.about {
    background-color: var(--background-secondary);
}

.about-content {
    display: grid;
    gap: var(--spacing-12);
    align-items: start;
}

.about-text p {
    color: var(--muted);
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-lg);
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-6);
}

.stat-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-2);
}

.stat-label {
    color: var(--muted);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

@media (min-width: 768px) {
    .about-content {
        grid-template-columns: 2fr 1fr;
    }
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: var(--spacing-6);
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.timeline-item {
    position: relative;
    margin-bottom: var(--spacing-12);
    padding-left: var(--spacing-16);
}

.timeline-dot {
    position: absolute;
    left: 0;
    top: var(--spacing-2);
    width: var(--spacing-6);
    height: var(--spacing-6);
    border-radius: 50%;
    background-color: var(--primary);
    border: 3px solid var(--background);
    box-shadow: 0 0 0 3px var(--primary);
}

.timeline-content {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.timeline-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--card-foreground);
    margin-bottom: var(--spacing-1);
}

.timeline-company {
    font-size: var(--font-size-lg);
    color: var(--primary);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
}

.timeline-period {
    font-size: var(--font-size-sm);
    color: var(--muted);
    background-color: var(--background-secondary);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius);
    display: inline-block;
    margin-bottom: var(--spacing-4);
}

.timeline-description {
    color: var(--muted);
    margin-bottom: var(--spacing-4);
    line-height: 1.6;
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
}

.skill-tag {
    background-color: var(--background-secondary);
    color: var(--secondary);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: 1px solid var(--border);
}

@media (min-width: 768px) {
    .timeline::before {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .timeline-item {
        width: 50%;
        padding-left: 0;
        padding-right: var(--spacing-8);
    }
    
    .timeline-item:nth-child(even) {
        left: 50%;
        padding-right: 0;
        padding-left: var(--spacing-8);
    }
    
    .timeline-dot {
        left: 50%;
        transform: translateX(-50%);
        display: none;
    }
}

/* Skills Section */
.skills {
    background-color: var(--background-secondary);
}

.skills-grid {
    display: grid;
    gap: var(--spacing-8);
    max-width: 1000px;
    margin: 0 auto;
}

.skill-category {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-8);
    transition: var(--transition);
}

.skill-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.category-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--card-foreground);
    margin-bottom: var(--spacing-6);
    text-align: center;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-4);
}

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-4);
}

.skill-name {
    color: var(--card-foreground);
    font-weight: 500;
    min-width: 120px;
}

.skill-bar {
    flex: 1;
    height: 8px;
    background-color: var(--background-secondary);
    border-radius: var(--radius);
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: var(--radius);
    width: 0;
    transition: width 1s ease-in-out;
}

@media (min-width: 768px) {
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Projects Section */
.projects-grid {
    display: grid;
    gap: var(--spacing-8);
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
}

.project-content {
    padding: var(--spacing-6);
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--card-foreground);
    margin-bottom: var(--spacing-3);
}

.project-description {
    color: var(--muted);
    margin-bottom: var(--spacing-4);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-6);
}

.tech-tag {
    background-color: var(--background-secondary);
    color: var(--accent);
    padding: var(--spacing-1) var(--spacing-3);
    border-radius: var(--radius);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: 1px solid var(--border);
}

.project-links {
    display: flex;
    gap: var(--spacing-4);
    flex-wrap: wrap;
}

.project-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--secondary);
    text-decoration: underline;
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

/* Content Section */
.content {
    background-color: var(--background-secondary);
}

.content-tabs {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-12);
    flex-wrap: wrap;
}

.tab-button {
    background-color: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    padding: var(--spacing-3) var(--spacing-6);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.tab-button.active,
.tab-button:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--primary-foreground);
}

.tab-content {
    display: none;
    max-width: 1000px;
    margin: 0 auto;
}

.tab-content.active {
    display: block;
}

.content-description {
    text-align: center;
    color: var(--muted);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-8);
}

.video-grid,
.blog-grid {
    display: grid;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-8);
}

.video-card,
.blog-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    transition: var(--transition);
}

.video-card:hover,
.blog-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.video-thumbnail {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--spacing-4);
}

.video-card h4,
.blog-card h4 {
    color: var(--card-foreground);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.video-card p,
.blog-card p {
    color: var(--muted);
    font-size: var(--font-size-sm);
}

.blog-date {
    color: var(--muted);
    font-size: var(--font-size-xs);
    font-weight: 500;
    background-color: var(--background-secondary);
    padding: var(--spacing-1) var(--spacing-2);
    border-radius: var(--radius);
    display: inline-block;
    margin-top: var(--spacing-2);
}

.mentoria-topics {
    display: grid;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-8);
}

.topic-card {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    text-align: center;
    transition: var(--transition);
}

.topic-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.topic-card i {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: var(--spacing-4);
}

.topic-card h4 {
    color: var(--card-foreground);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
}

.topic-card p {
    color: var(--muted);
    font-size: var(--font-size-sm);
}

@media (min-width: 768px) {
    .video-grid,
    .blog-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .mentoria-topics {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Contact Section */
.contact-content {
    display: grid;
    gap: var(--spacing-12);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form {
    background-color: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-8);
}

.form-group {
    margin-bottom: var(--spacing-6);
}

.form-group label {
    display: block;
    color: var(--card-foreground);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
}

.form-group input,
.form-group textarea {
    width: 100%;
    background-color: var(--background-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-3);
    color: var(--card-foreground);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.contact-item i {
    width: 2.5rem;
    height: 2.5rem;
    background-color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.contact-item h4 {
    color: var(--card-foreground);
    font-weight: 600;
    margin-bottom: var(--spacing-1);
}

.contact-item p {
    color: var(--muted);
    font-size: var(--font-size-sm);
}

.contact-social {
    margin-top: var(--spacing-4);
}

.contact-social h4 {
    color: var(--card-foreground);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.social-links a {
    color: var(--muted);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.social-links a:hover {
    color: var(--primary);
}

@media (min-width: 768px) {
    .contact-content {
        grid-template-columns: 2fr 1fr;
    }
}

/* Footer */
.footer {
    background-color: var(--background-secondary);
    border-top: 1px solid var(--border);
    padding: var(--spacing-8) 0;
    text-align: center;
}

.footer p {
    color: var(--muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-2);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll Progress */
.scroll-progress {
    position: fixed;
    top: 4rem;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    z-index: 1000;
    transition: width 0.3s ease;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Responsive Design */
@media (max-width: 767px) {
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        text-align: center;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border: #ffffff;
        --muted: #ffffff;
    }
}