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

:root {
    --primary-color: #06b6d4;
    --secondary-color: #3b82f6;
    --accent-color: #14b8a6;
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1aa;
    --card-bg: rgba(17, 17, 27, 0.8);
    --border-color: rgba(6, 182, 212, 0.2);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

/* Three.js Background Canvas */
#canvas3d {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.logo:hover {
    color: var(--secondary-color);
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: var(--transition);
}

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

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
}

.hero-content {
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 800;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.title-name {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 5s ease infinite;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.hero-tagline {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.hero-location {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: clamp(0.9rem, 2vw, 1.1rem);
    margin-bottom: 2rem;
}

.location-icon {
    width: 20px;
    height: 20px;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.hero-skills {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin: 0 auto 2.5rem;
    max-width: 900px;
}

.skill-badge {
    padding: 0.75rem 1.5rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

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

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.3);
}

.btn-large {
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Section Title */
.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    text-align: center;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* About Section / Executive Profile */
.about {
    padding: 8rem 0;
    position: relative;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 3rem 0;
}

.stat-card {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: 15px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.profile-highlight {
    background: rgba(17, 17, 27, 0.5);
    border-left: 4px solid var(--primary-color);
    padding: 2rem;
    border-radius: 0 15px 15px 0;
    margin-bottom: 1.5rem;
}

.profile-highlight p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.profile-highlight strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Projects Section */
.projects {
    padding: 8rem 0;
    position: relative;
}

.projects-intro {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.projects-intro strong {
    color: var(--primary-color);
    font-weight: 600;
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
    position: relative;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 50px rgba(6, 182, 212, 0.3);
}

.project-card.featured {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.1), rgba(59, 130, 246, 0.1));
    border-color: rgba(6, 182, 212, 0.5);
}

.project-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(6, 182, 212, 0.2);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.badge-icon {
    width: 16px;
    height: 16px;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    flex: 1;
    transition: var(--transition);
}

.project-card.featured .project-title {
    color: var(--primary-color);
}

.external-icon {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
    flex-shrink: 0;
    margin-left: 1rem;
    transition: var(--transition);
}

.project-card:hover .external-icon {
    color: var(--primary-color);
    transform: translate(2px, -2px);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-size: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.project-tags span {
    padding: 0.5rem 1rem;
    background: rgba(6, 182, 212, 0.15);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--primary-color);
}

.project-article {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(6, 182, 212, 0.15);
}

.article-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 700;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: 0.5rem 0;
}

.article-link:hover {
    color: var(--secondary-color);
}

.article-link::before {
    content: '→';
    margin-right: 0.25rem;
    transition: var(--transition);
}

.article-link:hover::before {
    transform: translateX(3px);
    display: inline-block;
}

.article-icon {
    width: 18px;
    height: 18px;
}

/* Experience Section */
.experience {
    padding: 8rem 0;
    position: relative;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    opacity: 0.3;
}

.timeline-item {
    position: relative;
    padding-left: 3rem;
    margin-bottom: 3rem;
}

.timeline-dot {
    position: absolute;
    left: -8px;
    top: 1.5rem;
    width: 18px;
    height: 18px;
    background: var(--primary-color);
    border: 4px solid var(--bg-dark);
    border-radius: 50%;
    z-index: 2;
    transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.3);
    box-shadow: 0 0 20px var(--primary-color);
}

.timeline-content {
    background: linear-gradient(135deg, rgba(17, 17, 27, 0.9), rgba(10, 10, 15, 0.9));
    border: 1px solid var(--border-color);
    border-radius: 15px;
    padding: 2rem;
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.2);
}

.company-header {
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.company-name {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.timeline-item:hover .company-name {
    color: var(--primary-color);
}

.company-type {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.role {
    margin-bottom: 2rem;
}

.role:last-child {
    margin-bottom: 0;
}

.role:not(:first-child) {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(6, 182, 212, 0.1);
}

.role-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.role-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.role-duration {
    font-size: 0.85rem;
    color: var(--text-secondary);
    background: rgba(6, 182, 212, 0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    border: 1px solid rgba(6, 182, 212, 0.2);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.role-points {
    list-style: none;
    padding: 0;
}

.role-points li {
    color: var(--text-secondary);
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    position: relative;
    line-height: 1.7;
}

.role-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6rem;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
}

/* Contact Section */
.contact {
    padding: 8rem 0;
    position: relative;
}

.contact-card {
    max-width: 700px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(17, 17, 27, 0.9), rgba(6, 182, 212, 0.1));
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 25px;
    padding: 4rem 3rem;
    text-align: center;
    box-shadow: 0 20px 60px rgba(6, 182, 212, 0.2);
}

.contact-description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(6, 182, 212, 0.2);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: rgba(17, 17, 27, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background: rgba(6, 182, 212, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.social-icon {
    width: 24px;
    height: 24px;
}

/* Footer */
.footer {
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

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

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        font-size: 0.9rem;
    }
    
    .hero {
        padding: 6rem 1.5rem 3rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        text-align: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about,
    .projects,
    .experience,
    .contact {
        padding: 4rem 0;
    }
    
    .timeline::before {
        display: none;
    }
    
    .timeline-item {
        padding-left: 0;
    }
    
    .timeline-dot {
        display: none;
    }
    
    .role-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .contact-card {
        padding: 3rem 2rem;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem 1.5rem;
    }
    
    .nav-menu {
        gap: 0.75rem;
        font-size: 0.85rem;
    }
    
    .hero-skills {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        gap: 1rem;
    }
}