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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a25;
    --text-primary: #f0f0f5;
    --text-secondary: #a0a0b0;
    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.3);
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Stars Canvas */
#stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 4rem;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.nav-logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

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

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

.hero-title {
    font-size: clamp(3rem, 10vw, 8rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(50px);
    animation: slideUp 0.8s ease forwards;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes slideUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.4s forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

.hero-stats {
    display: flex;
    gap: 4rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.scroll-hint {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    opacity: 0.6;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(10px);
    }
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-secondary);
    border-bottom: 2px solid var(--text-secondary);
    transform: rotate(45deg);
}

/* Sections */
section {
    padding: 6rem 4rem;
    min-height: 100vh;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.section-line {
    width: 80px;
    height: 3px;
    background: var(--gradient);
    margin: 0 auto;
    border-radius: 2px;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 2rem;
}

.skill {
    padding: 0.5rem 1.25rem;
    background: var(--bg-card);
    border-radius: 50px;
    font-size: 0.9rem;
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all 0.3s ease;
}

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

/* 3D Cube */
.cube-container {
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cube {
    width: 150px;
    height: 150px;
    position: relative;
    transform-style: preserve-3d;
    animation: rotate 10s infinite linear;
}

@keyframes rotate {
    from {
        transform: rotateX(0deg) rotateY(0deg);
    }
    to {
        transform: rotateX(360deg) rotateY(360deg);
    }
}

.face {
    position: absolute;
    width: 150px;
    height: 150px;
    background: var(--bg-card);
    border: 2px solid var(--accent);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 0 30px var(--accent-glow);
}

.front { transform: translateZ(75px); }
.back { transform: rotateY(180deg) translateZ(75px); }
.right { transform: rotateY(90deg) translateZ(75px); }
.left { transform: rotateY(-90deg) translateZ(75px); }
.top { transform: rotateX(90deg) translateZ(75px); }
.bottom { transform: rotateX(-90deg) translateZ(75px); }

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px var(--accent-glow);
}

.project-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.project-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: var(--accent-light);
}

.project-card-link {
    display: block;
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid rgba(99, 102, 241, 0.1);
    transition: all 0.3s ease;
    text-decoration: none;
    color: inherit;
}

.project-card-link:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px var(--accent-glow);
}

/* Thoughts Section */
.thoughts-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.thought-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    border-left: 4px solid var(--accent);
    transition: all 0.3s ease;
}

.thought-card:hover {
    transform: translateX(8px);
    box-shadow: -10px 0 30px var(--accent-glow);
}

.thought-date {
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.thought-card p {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-secondary);
}

/* Experiments Section */
.experiments {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.experiments-grid {
    display: flex;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.experiment-card {
    display: grid;
    grid-template-columns: 200px 1fr;
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(99, 102, 241, 0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: inherit;
    max-width: 700px;
    width: 100%;
}

.experiment-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--accent);
    box-shadow: 0 25px 50px var(--accent-glow);
}

.experiment-visual {
    background: linear-gradient(135deg, var(--accent) 0%, #8b5cf6 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.experiment-visual::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.particle-preview {
    width: 60px;
    height: 60px;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.9), transparent);
    border-radius: 50%;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-10px) scale(1.1); }
}

.experiment-content {
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.experiment-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.experiment-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.experiment-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.experiment-link {
    color: var(--accent);
    font-weight: 600;
    transition: all 0.3s ease;
}

.experiment-card:hover .experiment-link {
    color: var(--accent-light);
    transform: translateX(8px);
    display: inline-block;
}

/* Footer */
.footer {
    text-align: center;
    padding: 3rem;
    background: var(--bg-secondary);
}

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

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .nav {
        padding: 1rem 1.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    section {
        padding: 4rem 1.5rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        gap: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Mobile Responsive for Experiments */
@media (max-width: 768px) {
    .experiment-card {
        grid-template-columns: 1fr;
        max-width: 350px;
    }
    
    .experiment-visual {
        height: 120px;
    }
    
    .particle-preview {
        width: 40px;
        height: 40px;
    }
    
    .experiment-content {
        padding: 1.5rem;
    }
    
    .experiment-icon {
        font-size: 2rem;
    }
    
    .experiments-grid {
        padding: 0 1rem;
    }
}

/* Particles Mobile Fixes */
@media (max-width: 768px) {
    .controls {
        top: auto;
        bottom: 3.5rem;
        right: 50%;
        transform: translateX(-50%);
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.4rem;
        width: 90%;
    }
    
    .control-btn {
        padding: 0.35rem 0.6rem;
        font-size: 0.7rem;
        flex: 1;
        min-width: 80px;
        max-width: 120px;
    }
    
    .back-link {
        top: 1rem;
        left: 1rem;
        font-size: 0.8rem;
    }
    
    .particle-count {
        top: 1rem;
        font-size: 0.75rem;
    }
    
    .info {
        bottom: 1rem;
        font-size: 0.7rem;
        padding: 0 1rem;
    }
}