:root {
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #06b6d4;
    --primary-hover: #0891b2;
    --accent: #3b82f6;
    
    --font-main: 'Inter', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; color: var(--text-main); }
h3 { font-size: 1.5rem; }
p { color: var(--text-muted); margin-bottom: 1rem; }

.highlight { color: var(--primary); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section { padding: 100px 0; }
.bg-dark { background-color: var(--bg-dark); }
.bg-darker { background-color: var(--bg-darker); }

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 1rem 0;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    letter-spacing: -0.05em;
}

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

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover { color: var(--primary); }

.btn-nav {
    background: var(--primary);
    color: var(--bg-darker) !important;
    padding: 0.5rem 1.2rem;
    border-radius: 4px;
    font-weight: 600 !important;
}

.btn-nav:hover { 
    background: var(--primary-hover);
    transform: translateY(-2px);
}

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

/* Hero Section mit Particles */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-grid-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(6, 182, 212, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(6, 182, 212, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: 0;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.3);
    border-radius: 50px;
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease-out;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    padding-top: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-darker);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255,255,255,0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary i {
    transition: transform 0.3s;
}

.btn-primary:hover i {
    transform: translateX(5px);
}

.btn-outline {
    border: 2px solid var(--text-muted);
    color: var(--text-main);
    background: transparent;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-3px);
}

/* Trust Bar */
.trust-bar {
    background: var(--bg-card);
    padding: 2rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.trust-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 2rem;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 500;
}

.trust-item i { 
    color: var(--primary);
    font-size: 1.2rem;
}

/* Services Grid mit Glow-Effekt */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(6, 182, 212, 0.15), transparent 40%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
}

.service-card:hover .card-glow {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(6, 182, 212, 0.15);
}

.icon-box {
    position: relative;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.icon-box i {
    font-size: 2rem;
    color: var(--primary);
    position: relative;
    z-index: 1;
}

.icon-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 12px;
    animation: pulse 2s infinite;
}

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

.card-footer {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: rgba(6, 182, 212, 0.1);
    color: var(--primary);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Split Layout */
.split-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.split-layout.reverse {
    direction: rtl;
}

.split-layout.reverse > * {
    direction: ltr;
}

.feature-list { 
    list-style: none; 
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon i {
    color: var(--primary);
    font-size: 1.2rem;
}

.feature-text strong {
    display: block;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}

.feature-text span {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Tech Visual */
.visual-content {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-visual {
    position: relative;
    width: 300px;
    height: 300px;
}

.tech-circle {
    position: absolute;
    border: 2px solid rgba(6, 182, 212, 0.2);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.circle-1 {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.circle-2 {
    width: 75%;
    height: 75%;
    top: 12.5%;
    left: 12.5%;
    animation-direction: reverse;
    animation-duration: 15s;
}

.circle-3 {
    width: 50%;
    height: 50%;
    top: 25%;
    left: 25%;
    animation-duration: 10s;
}

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

.tech-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(6, 182, 212, 0.1);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-icon i {
    font-size: 2.5rem;
    color: var(--primary);
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 60px;
}

.timeline-line {
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), transparent);
}

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

.timeline-dot {
    position: absolute;
    left: -60px;
    top: 0;
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 3px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.timeline-item:hover .timeline-dot {
    transform: scale(1.2);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.5);
}

.dot-inner {
    width: 12px;
    height: 12px;
    background: var(--primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.timeline-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
}

.timeline-item:hover .timeline-content {
    border-color: var(--primary);
    transform: translateX(10px);
}

.timeline-number {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

/* Skills Grid */
.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.skill-tag {
    background: rgba(6, 182, 212, 0.1);
    color: var(--primary);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid rgba(6, 182, 212, 0.2);
    transition: var(--transition);
    cursor: default;
}

.skill-tag:hover {
    background: rgba(6, 182, 212, 0.2);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(6, 182, 212, 0.2);
}

/* Practice Cards */
.practice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.practice-card {
    background: var(--bg-darker);
    padding: 2.5rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.practice-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.practice-icon {
    width: 50px;
    height: 50px;
    background: rgba(6, 182, 212, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.practice-icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.practice-card h4 {
    color: var(--text-main);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

/* About Visual */
.about-visual {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.about-box {
    position: absolute;
    border: 2px solid rgba(6, 182, 212, 0.3);
    border-radius: 12px;
    animation: float 6s ease-in-out infinite;
}

.box-1 {
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    animation-delay: 0s;
}

.box-2 {
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
    animation-delay: 1s;
}

.box-3 {
    width: 60%;
    height: 60%;
    top: 20%;
    left: 20%;
    animation-delay: 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* FAQ */
.faq-container { max-width: 800px; margin: 0 auto; }

.faq-item {
    background: var(--bg-card);
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
}

.faq-item:hover {
    border-color: var(--primary);
}

.faq-question {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    color: var(--text-main);
    padding: 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

.faq-item.active {
    border-color: var(--primary);
}

/* Contact Form */
.contact-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

input, textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-dark);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--text-main);
    border-radius: 6px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* Footer */
.footer {
    background: #000;
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

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

.footer-col h3 { color: var(--text-main); margin-bottom: 1rem; }
.footer-col h4 { color: var(--text-main); margin-bottom: 1rem; font-size: 1.1rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.5rem; }
.footer-col a { color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); }

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up, .fade-in-left, .fade-in-right {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up { transform: translateY(30px); }
.fade-in-left { transform: translateX(-30px); }
.fade-in-right { transform: translateX(30px); }

.visible {
    opacity: 1;
    transform: translate(0, 0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* Particles */
.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0.3;
    animation: particleFloat 15s infinite;
}

@keyframes particleFloat {
    0%, 100% {
        transform: translate(0, 0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translate(var(--tx), var(--ty));
        opacity: 0;
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-card);
        flex-direction: column;
        padding: 2rem;
        text-align: center;
    }
    
    .nav-links.active { display: flex; }
    .hamburger { display: block; }
    
    .split-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .split-layout.reverse {
        direction: ltr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 40px;
    }
    
    .timeline-dot {
        left: -40px;
        width: 30px;
        height: 30px;
    }
    
    .tech-visual, .about-visual {
        width: 200px;
        height: 200px;
    }
}