@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Rajdhani:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #00ffff;
    --primary-color-rgb: 0, 255, 255;
    --secondary-color: #ff6b6b;
    --accent-color: #ffd700;
    --bg-primary: #0a0a0a;
    --bg-primary-rgb: 10, 10, 10;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --border-color: #333333;
    --glow-color: #00ffff;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Rajdhani', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
}

/* Digital Canvas Background */
#digital-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    opacity: 0.1;
}

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

/* Navigation */
.nav-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.9);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.nav-logo {
    font-family: 'Orbitron', monospace;
    font-size: 1.5rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.console-btn {
    background: rgba(0, 255, 127, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 1rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.console-btn:hover {
    background: rgba(0, 255, 127, 0.2);
    box-shadow: 0 0 15px rgba(0, 255, 127, 0.3);
    transform: translateY(-2px);
}

.console-btn:active {
    transform: translateY(0);
}

.console-icon {
    font-weight: bold;
}

.logo-highlight {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

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

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
    position: relative;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-color);
    text-shadow: 0 0 5px var(--primary-color);
}

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

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

.nav-burger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

.nav-burger:hover {
    background: rgba(var(--primary-color-rgb), 0.1);
}

.nav-burger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 3px;
}

/* Burger Animation */
.nav-burger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-9px, 6px);
}

.nav-burger.active span:nth-child(2) {
    opacity: 0;
}

.nav-burger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-8px, -8px);
}

/* Mobile Menu Overlay */
.nav-menu.mobile-active {
    display: flex !important;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background: rgba(var(--bg-primary-rgb), 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9998;
    animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.nav-menu.mobile-active li {
    margin: 1.5rem 0;
}

.nav-menu.mobile-active a {
    font-size: 1.5rem;
    padding: 1rem 2rem;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-menu.mobile-active a:hover {
    background: rgba(var(--primary-color-rgb), 0.1);
    transform: scale(1.05);
}

/* Main Container */
.main-container {
    padding-top: 80px;
}

/* Sections */
.section {
    min-height: 100vh;
    padding: 4rem 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.section.active {
    opacity: 1;
    transform: translateY(0);
}

.section-content {
    max-width: 1200px;
    width: 100%;
}

.section-title {
    font-family: 'Orbitron', monospace;
    font-size: 3rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 4rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    box-shadow: 0 0 10px var(--primary-color);
}

.highlight {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

/* Hero Section */
.hero-section {
    background: radial-gradient(ellipse at center, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
    position: relative;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-avatar {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 0 auto 2rem;
    animation: float 6s ease-in-out infinite;
}

.avatar-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.5);
}

.avatar-ring {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: pulse 2s ease-in-out infinite;
}

.avatar-status {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
}

.avatar-status.online {
    background: #00ff00;
    box-shadow: 0 0 10px #00ff00;
}

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

.title-line {
    display: block;
    animation: slideInLeft 1s ease-out;
}

.title-line.highlight {
    animation: slideInRight 1s ease-out;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    height: 2rem;
    position: relative;
}

.typing-text::after {
    content: '|';
    color: var(--primary-color);
    animation: blink 1s infinite;
    margin-left: 2px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: 'Orbitron', monospace;
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border: none;
    border-radius: 0;
    font-family: 'Rajdhani', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--bg-primary);
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

.btn-primary:hover {
    background: transparent;
    color: var(--primary-color);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.6);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.3);
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-description {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.highlight-icon {
    font-size: 1.5rem;
}

.about-image {
    position: relative;
}

.image-container {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.image-container img {
    width: 100%;
    height: 100%;
    border-radius: 20px;
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 30px rgba(0, 255, 255, 0.3);
}

.hologram-effect {
    position: absolute;
    top: -5px;
    left: -5px;
    right: -5px;
    bottom: -5px;
    border: 1px solid var(--primary-color);
    border-radius: 25px;
    opacity: 0.5;
    animation: hologramScan 3s ease-in-out infinite;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.6; }
    50% { transform: scale(1.1); opacity: 1; }
}

@keyframes slideInLeft {
    from { transform: translateX(-100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes blink {
    0%, 50% { border-color: var(--primary-color); }
    51%, 100% { border-color: transparent; }
}

@keyframes hologramScan {
    0% { transform: translateY(0); }
    50% { transform: translateY(-310px); }
    100% { transform: translateY(0); }
}

/* Contact Section */
.contact-centered {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: var(--transition);
    min-width: 200px;
}

.contact-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 255, 255, 0.2);
    transform: translateY(-5px);
}

.contact-icon {
    font-size: 2rem;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 50%;
    border: 2px solid var(--primary-color);
}

.contact-details h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.contact-details p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* Responsive Design - Mobile First */
@media (max-width: 768px) {
    /* Navigation */
    .nav-menu {
        display: none;
    }
    
    .nav-burger {
        display: flex !important;
        z-index: 10001 !important;
        position: relative !important;
        background: rgba(0, 255, 255, 0.1) !important;
        border: 1px solid var(--primary-color) !important;
        border-radius: 4px !important;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .console-btn {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    /* Hero Section */
    .hero-section {
        padding: 2rem 1rem;
        min-height: 90vh;
    }
    
    .hero-title {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        margin: 2rem auto;
        width: 100%;
        max-width: 400px;
    }
    
    .stat-item {
        width: 100%;
        text-align: center;
        padding: 1rem;
        background: rgba(0, 255, 255, 0.05);
        border: 1px solid rgba(0, 255, 255, 0.2);
        border-radius: 8px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        margin-top: 2rem;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 250px;
        padding: 1rem;
    }
    
    /* About Section */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about-text h2 {
        font-size: 2rem;
    }
    
    /* Skills Section */
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .skill-category {
        padding: 1.5rem;
    }
    
    /* Projects Section */
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .project-card {
        padding: 1.5rem;
    }
    
    /* Contact Section */
    .contact-centered {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .contact-item {
        width: 100%;
        max-width: 300px;
    }
    
    /* General spacing */
    .section {
        padding: 3rem 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* Performance-Optimierungen für Mobile */
    .hero-avatar,
    .avatar-ring {
        animation-duration: 4s !important;
    }
    
    /* Normal Transition-Speeds beibehalten */
    .nav-menu a,
    .btn-primary,
    .btn-secondary,
    .contact-item {
        transition-duration: 0.3s !important;
    }
    
    /* GPU-Beschleunigung für kritische Elemente */
    .nav-burger,
    .nav-menu,
    #hidden-console,
    .console-header {
        transform: translateZ(0);
        -webkit-transform: translateZ(0);
        will-change: transform;
    }
    
    /* Optimierte Digital Rain für Mobile */
    #digital-canvas {
        opacity: 0.3 !important;
    }
    
    /* Reduzierte Partikel-Effekte */
    #particles-container {
        display: none !important;
    }
}

/* Tablet Responsive */
@media (max-width: 1024px) and (min-width: 769px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .section {
        padding: 3rem 2rem;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .nav-logo .logo-text {
        font-size: 1.2rem;
    }
    
    .contact-item {
        padding: 1.5rem;
        min-width: 250px;
    }
    
    .skill-category {
        padding: 1rem;
    }
    
    .project-card {
        padding: 1rem;
    }
}

/* Reduce Motion für Accessibility - nur wenn explizit angefordert */
@media (prefers-reduced-motion: reduce) {
    .hero-avatar,
    .avatar-ring,
    .hologram-effect {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
    
    .nav-menu a,
    .btn-primary,
    .btn-secondary,
    .contact-item {
        transition-duration: 0.01ms !important;
    }
    
    #digital-canvas,
    #particles-container {
        display: none !important;
    }
}

/* Touch-optimierte Hover-States */
@media (hover: none) and (pointer: coarse) {
    .contact-item:hover,
    .btn-primary:hover,
    .btn-secondary:hover,
    .nav-menu a:hover {
        transform: none !important;
    }
    
    .contact-item:active,
    .btn-primary:active,
    .btn-secondary:active,
    .nav-menu a:active {
        transform: scale(0.98) !important;
    }
}