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

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
    color: #fff;
    overflow-x: hidden;
    min-height: 100vh;
}

#app {
    position: relative;
    z-index: 2;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Orbitron', monospace;
    font-weight: 700;
    font-size: 1.5rem;
    color: #00d4ff;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #fff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.nav-link:hover,
.nav-link.active {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: #000;
    transform: translateY(-2px);
}

/* Sections */
.section {
    min-height: 100vh;
    display: none;
    padding: 100px 2rem 2rem;
}

.section.active {
    display: block;
}

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

.section-title {
    font-family: 'Orbitron', monospace;
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(45deg, #00d4ff, #ff6b6b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 80vh;
    gap: 3rem;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-title {
    font-family: 'Orbitron', monospace;
    font-size: 4rem;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.text-gradient {
    display: block;
    background: linear-gradient(45deg, #00d4ff, #ff6b6b, #00ff88);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite;
}

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

.hero-subtitle {
    font-size: 1.5rem;
    color: #ccc;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: #000;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #00d4ff;
    border: 2px solid #00d4ff;
}

.btn-secondary:hover {
    background: #00d4ff;
    color: #000;
    transform: translateY(-3px);
}

/* Floating Cube */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.floating-cube {
    width: 200px;
    height: 200px;
    position: relative;
    transform-style: preserve-3d;
    animation: rotate 10s infinite linear;
}

@keyframes rotate {
    0% { transform: rotateX(0deg) rotateY(0deg); }
    100% { transform: rotateX(360deg) rotateY(360deg); }
}

.cube-face {
    position: absolute;
    width: 200px;
    height: 200px;
    border: 2px solid #00d4ff;
    background: rgba(0, 212, 255, 0.1);
    backdrop-filter: blur(10px);
}

.cube-face.front { transform: rotateY(0deg) translateZ(100px); }
.cube-face.back { transform: rotateY(180deg) translateZ(100px); }
.cube-face.right { transform: rotateY(90deg) translateZ(100px); }
.cube-face.left { transform: rotateY(-90deg) translateZ(100px); }
.cube-face.top { transform: rotateX(90deg) translateZ(100px); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(100px); }

/* Skills Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.skill-card:hover::before {
    left: 100%;
}

.skill-card:hover {
    transform: translateY(-10px);
    border-color: #00d4ff;
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.skill-icon {
    font-size: 4rem;
    color: #00d4ff;
    margin-bottom: 1rem;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-family: 'Orbitron', monospace;
}

.skill-level {
    margin-bottom: 1.5rem;
}

.level-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.level-fill {
    height: 100%;
    background: linear-gradient(90deg, #00d4ff, #ff6b6b);
    border-radius: 4px;
    width: 0%;
    transition: width 2s ease;
    position: relative;
}

.level-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.level-text {
    font-weight: 600;
    color: #00d4ff;
}

.skill-btn {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: #000;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.skill-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 212, 255, 0.3);
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.project-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.project-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: #00d4ff;
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.project-image {
    height: 200px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder {
    font-size: 4rem;
    color: white;
    opacity: 0.8;
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.project-content p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background: rgba(0, 212, 255, 0.2);
    color: #00d4ff;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(0, 212, 255, 0.3);
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    color: #00d4ff;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.project-link:hover {
    color: #ff6b6b;
}

/* Games Grid */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.game-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.game-card:hover {
    transform: translateY(-10px) scale(1.05);
    border-color: #ff6b6b;
    box-shadow: 0 20px 40px rgba(255, 107, 107, 0.2);
}

.game-icon {
    font-size: 3rem;
    color: #ff6b6b;
    margin-bottom: 1rem;
}

.game-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-family: 'Orbitron', monospace;
}

.game-card p {
    color: #ccc;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    backdrop-filter: blur(20px);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.close-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

.modal-body {
    padding: 2rem;
    max-height: 60vh;
    overflow-y: auto;
}

/* Particle System */
#particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: #00d4ff;
    border-radius: 50%;
    animation: float 6s infinite linear;
}

@keyframes float {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .nav-link {
        padding: 0.3rem 0.8rem;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .skills-grid,
    .games-grid {
        grid-template-columns: 1fr;
    }
}