/* =========================================================================
   Theme Variables & Reset
   ========================================================================= */
:root {
    --bg-dark: #0f172a;
    /* Slate 900 */
    --bg-darker: #020617;
    /* Slate 950 */
    --bg-surface: #1e293b;
    /* Slate 800 */

    --text-primary: #f8fafc;
    /* Slate 50 */
    --text-secondary: #94a3b8;
    /* Slate 400 */

    --accent-cyan: #06b6d4;
    /* Cyan 500 */
    --accent-purple: #8b5cf6;
    /* Violet 500 */
    --accent-mixed: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-purple) 100%);

    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);

    /* DSGVO-konformer Font-Stack (Kein Google Fonts) */
    --font-heading: 'Outfit', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    background-image:
        radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.05), transparent 80%),
        url('../assets/ai_bg_pattern.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Technical Grid Overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

/* =========================================================================
   Typography & Utilities
   ========================================================================= */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
}

.gradient-text {
    background: var(--accent-mixed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.text-gradient {
    background: var(--accent-mixed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-cyan {
    color: var(--accent-cyan);
}

.text-purple {
    color: var(--accent-purple);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

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

.bg-darker {
    background-color: var(--bg-darker);
}

/* =========================================================================
   Abstract Background Shapes
   ========================================================================= */
.bg-shape {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    z-index: -2;
    opacity: 0.3;
    animation: float 20s infinite alternate;
}

.bg-shape-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-cyan), transparent);
    top: -100px;
    right: -100px;
}

.bg-shape-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--accent-purple), transparent);
    bottom: -50px;
    left: -100px;
    animation-delay: -5s;
}

.bg-shape-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #3b82f6, transparent);
    top: 40%;
    left: 20%;
    opacity: 0.15;
    animation-delay: -10s;
}

@keyframes float {
    0% {
        transform: translateY(0) scale(1);
    }

    100% {
        transform: translateY(-50px) scale(1.1);
    }
}

/* =========================================================================
   Glassmorphism Components
   ========================================================================= */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.interactive {
    transition: var(--transition);
}

.interactive:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

/* =========================================================================
   Buttons
   ========================================================================= */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 30px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: var(--accent-mixed);
    color: white;
    box-shadow: 0 4px 15px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(6, 182, 212, 0.5);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--text-primary);
}

.btn-primary-outline {
    display: inline-block;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary-outline:hover {
    background: var(--accent-mixed);
    color: white;
    border-color: transparent;
}


/* =========================================================================
   Navbar
   ========================================================================= */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1rem 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.nav-container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-cyan);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2rem;
}

.nav-links a:not(.btn-primary-outline) {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:not(.btn-primary-outline):hover {
    color: var(--accent-cyan);
}

.hamburger {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-primary);
}

/* =========================================================================
   Hero Section
   ========================================================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8rem 5% 4rem;
    max-width: 1200px;
    margin: 0 auto;
    gap: 4rem;
}

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

.hero-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(6, 182, 212, 0.2);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

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

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: flex-end;
}

.ai-code-snippet {
    background: rgba(15, 23, 42, 0.6);
    padding: 1rem;
    width: 100%;
    max-width: 450px;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 0.9rem;
    transform: perspective(1000px) rotateY(-10deg) rotateX(5deg);
    transition: var(--transition);
}

.ai-code-snippet:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.window-controls {
    display: flex;
    gap: 8px;
    margin-bottom: 1rem;
}

.window-controls span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.window-controls span:nth-child(1) {
    background: #ff5f56;
}

.window-controls span:nth-child(2) {
    background: #ffbd2e;
}

.window-controls span:nth-child(3) {
    background: #27c93f;
}

.ai-code-snippet pre {
    color: #e2e8f0;
    overflow-x: hidden;
}

.ai-code-snippet .keyword {
    color: #ff7b72;
}

.ai-code-snippet .function {
    color: #d2a8ff;
}

.ai-code-snippet .type {
    color: #79c0ff;
}

.ai-code-snippet .method {
    color: #d2a8ff;
}

/* =========================================================================
   Sections General
   ========================================================================= */
.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

/* =========================================================================
   About Section
   ========================================================================= */
.section-inner {
    display: flex;
    align-items: center;
    gap: 4rem;
}

.about-text {
    flex: 3;
}

.about-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.tech-stack h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.tech-tags span {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    transition: var(--transition);
}

.tech-tags span:hover {
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.about-stats {
    flex: 2;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.stat-item i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.stat-item h4 {
    font-size: 1.2rem;
}

.stat-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* =========================================================================
   Services Section
   ========================================================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    text-align: left;
}

.service-icon {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: rgba(6, 182, 212, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--accent-cyan);
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

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

/* =========================================================================
   Portfolio Section
   ========================================================================= */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
}

.project-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.project-image {
    width: 100%;
    height: 220px;
    border-bottom: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-info {
    padding: 2rem;
}

.project-info h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

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

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

.project-tech span {
    font-size: 0.8rem;
    color: var(--accent-cyan);
    background: rgba(6, 182, 212, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1.2rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.github-link:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
}

.dashboard-link {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    margin-top: 1.2rem;
    margin-right: 1rem;
    font-size: 0.95rem;
    color: #ffffff !important;
    text-decoration: none !important;
    transition: var(--transition);
    padding: 0.7rem 1.5rem;
    background: linear-gradient(135deg, #06b6d4 0%, #8b5cf6 100%);
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(6, 182, 212, 0.5);
    border: none;
}

.dashboard-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.7);
    color: #ffffff !important;
}

.dashboard-link i {
    font-size: 1rem;
}

/* =========================================================================
   Footer Contact
   ========================================================================= */
.footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--glass-border);
    position: relative;
    overflow: hidden;
}

.footer-subtitle {
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.2rem;
}

.contact-methods {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 4rem;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.1rem;
    padding: 1.2rem 2.5rem;
}

.contact-btn i {
    font-size: 1.5rem;
    color: var(--accent-cyan);
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.legal-links {
    margin-top: 1rem;
    font-size: 0.85rem;
}

.legal-links a {
    color: var(--text-primary);
    opacity: 0.7;
    text-decoration: underline;
    transition: var(--transition);
    margin: 0 8px;
}

.legal-links a:hover {
    color: var(--accent-cyan);
}

.legal-page h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--accent-cyan);
}

.legal-page h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.legal-page p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.legal-page ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

/* =========================================================================
   Animations (Scroll Reveal)
   ========================================================================= */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

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

.fade-in-up {
    animation: fadeInUp 1s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

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

/* =========================================================================
   Responsive queries
   ========================================================================= */
@media screen and (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        justify-content: center;
        width: 100%;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .section-inner {
        flex-direction: column;
    }

    .about-stats {
        width: 100%;
        flex-direction: row;
        justify-content: space-between;
        flex-wrap: wrap;
    }
}

@media screen and (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(12px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        margin: 1.5rem 0;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .contact-methods {
        flex-direction: column;
        align-items: center;
    }
}