:root {
    /* Define colors based on 00-design-system.md */
    --primary: #f59c00;
    --primary-hover: #e08d00;
    --primary-subtle: rgba(245, 156, 0, 0.08);
    --accent-violet: #5d4d9b;
    
    --bg-dark: #010101;
    --bg-dark-alt: #0a0a0a;
    --bg-card: rgba(255, 255, 255, 0.04);
    
    --text: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.65);
    --border-glass: rgba(255, 255, 255, 0.08);
    
    --success: #22c55e;
    --warning: #eab308;

    /* Typo */
    --font-heading: 'Montserrat', system-ui, sans-serif;
    --font-body: 'Montserrat', system-ui, sans-serif;
    --font-mono: 'Fira Code', Consolas, monospace;

    /* Theme-spezifische Variablen (Dark ist Default) */
    --mockup-header-bg: rgba(0,0,0,0.3);
    --btn-outline-border: rgba(255, 255, 255, 0.4);
    --btn-outline-text: #ffffff;
    --btn-outline-hover-bg: rgba(255, 255, 255, 0.1);
    --hero-title-gradient: linear-gradient(to right, #fff, rgba(255, 255, 255, 0.7));

    /* Sizes */
    --container-max: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-glass: 20px;
    
    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-base: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
    --bg-dark: #f8f9fa;
    --bg-dark-alt: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.6);
    --text: #1a1a1a;
    --text-muted: #555555;
    --border-glass: rgba(0, 0, 0, 0.1);
    
    --mockup-header-bg: rgba(0, 0, 0, 0.05);
    --btn-outline-border: rgba(0, 0, 0, 0.2);
    --btn-outline-text: #1a1a1a;
    --btn-outline-hover-bg: rgba(0, 0, 0, 0.05);
    --hero-title-gradient: linear-gradient(to right, #000, #333);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.65;
    font-size: 16px;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
    margin-bottom: 1rem;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

ul {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

/* Background Effects */
.bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-subtle) 0%, transparent 60%);
    top: -100px;
    left: -200px;
    z-index: -1;
    pointer-events: none;
    border-radius: 50%;
    filter: blur(60px);
}

.bg-glow-alt {
    background: radial-gradient(circle, rgba(93, 77, 155, 0.15) 0%, transparent 60%);
    top: 20%;
    left: auto;
    right: -200px;
}

/* Typography elements */
.pill {
    display: inline-block;
    padding: 0.3rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.pill-mono {
    font-family: var(--font-mono);
}

.pill.accent {
    color: var(--text);
    border-color: var(--accent-violet);
    background: transparent;
}

.text-muted {
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.6rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary);
    color: #1a1a1a;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #1a1a1a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 156, 0, 0.2);
}

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

.btn-secondary:hover {
    border-color: var(--primary);
    background-color: rgba(255, 255, 255, 0.02);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
}

.btn-mockup {
    font-size: 0.8rem;
    padding: 0.5rem 0.8rem;
    border-radius: 4px;
}

.btn-success {
    background: var(--success);
    color: #000;
}

.btn-outline {
    border-color: var(--btn-outline-border);
    color: var(--btn-outline-text);
    background: transparent;
}
.btn-outline:hover {
    background: var(--btn-outline-hover-bg);
}

/* Header & Nav */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: transparent;
    z-index: 100;
    border-bottom: 1px solid transparent;
    display: flex;
    align-items: center;
    transition: all var(--transition-base);
}

.header.scrolled {
    background: rgba(1, 1, 1, 0.85); /* Dark Mode Glass */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .header.scrolled {
    background: rgba(248, 249, 250, 0.85); /* Light Mode Glass */
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-mark {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text);
    letter-spacing: -0.02em;
}

.logo-text {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    border-left: 1px solid var(--border-glass);
    padding-left: 0.5rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
}

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

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    margin-right: 1.5rem;
    border-radius: 50%;
    transition: color var(--transition-base), background var(--transition-fast);
}

.theme-toggle:hover {
    color: var(--primary);
    background: var(--primary-subtle);
}

.moon-icon { display: none; }
.sun-icon { display: block; }

[data-theme="light"] .moon-icon { display: block; }
[data-theme="light"] .sun-icon { display: none; }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    margin-bottom: 5px;
    transition: var(--transition-fast);
}

.mobile-menu-btn span:last-child {
    margin-bottom: 0;
}

/* Sections */
.section {
    padding: clamp(3.5rem, 10vw, 6.25rem) 0;
}

.section-alt {
    background-color: var(--bg-dark-alt);
    border-top: 1px solid var(--border-glass);
    border-bottom: 1px solid var(--border-glass);
}

.section-header {
    max-width: 600px;
    margin: 0 auto 3rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin: 1rem 0;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
}

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

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 60px;
    position: relative;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 540px;
}

.hero-content .eyebrow {
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: var(--hero-title-gradient);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-subtitle strong {
    color: var(--text);
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.hero-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
}

.stat-item svg {
    color: var(--primary);
}

/* Glass Mockup */
.glass-mockup {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transition: opacity 0.3s ease;
}

.mockup-tabs {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.mockup-tab {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    padding: 0.4rem 1rem;
    border-radius: 100px;
    font-size: 0.8rem;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.mockup-tab:hover, .mockup-tab.active {
    background: rgba(245, 156, 0, 0.1);
    color: var(--primary);
    border-color: var(--primary);
}

.glass-mockup::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}
[data-theme="light"] .glass-mockup::before {
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.1), transparent);
}

.mockup-header {
    background: var(--mockup-header-bg);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-glass);
}

.mockup-dots {
    display: flex;
    gap: 6px;
    margin-right: 1.5rem;
}

.mockup-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-glass);
}

.mockup-dots span:nth-child(1) { background: #ff5f56; }
.mockup-dots span:nth-child(2) { background: #ffbd2e; }
.mockup-dots span:nth-child(3) { background: #27c93f; }

.mockup-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.mockup-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    min-height: 250px;
}

.mockup-message {
    display: flex;
    gap: 1rem;
}

.msg-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border: 1px solid var(--border-glass);
    flex-shrink: 0;
}

.ai-avatar {
    background: var(--primary-subtle);
    border-color: rgba(245, 156, 0, 0.3);
    color: var(--primary);
}

.msg-bubble {
    background: rgba(255, 255, 255, 0.03);
    padding: 1rem;
    border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
    font-size: 0.9rem;
    color: var(--text-muted);
}

.ai-bubble {
    background: rgba(245, 156, 0, 0.05);
    border: 1px solid rgba(245, 156, 0, 0.1);
    color: var(--text);
}

.ai-bubble p {
    margin-bottom: 0.5rem;
}
.ai-bubble p:last-child {
    margin-bottom: 0;
}

.ai-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}
.ai-badge::before {
    content: '';
    display: inline-block;
    width: 6px; height: 6px;
    background: var(--primary);
    border-radius: 50%;
    margin-right: 6px;
    box-shadow: 0 0 8px var(--primary);
}

.mockup-actions {
    display: flex;
    gap: 0.8rem;
    margin-left: 52px;
    margin-top: -0.5rem;
}

/* Marquee Proof */
.marquee-section {
    padding: 1rem 0;
    background: var(--primary);
    color: #000;
    overflow: hidden;
}

.marquee-wrapper {
    display: flex;
    width: max-content;
}

.marquee {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    animation: scroll 30s linear infinite;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.marquee-item {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 0.5rem;
    white-space: normal;
    max-width: 300px;
    line-height: 1.4;
}

.marquee-item svg, .marquee-item img {
    flex-shrink: 0;
}

.marquee .dot {
    margin: 0 1.5rem;
    opacity: 0.5;
    flex-shrink: 0;
}

@keyframes scroll {
    from { transform: translateX(0); }
    to { transform: translateX(-100%); }
}

/* Problem Section */
.problem-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-glass);
    overflow: hidden;
}

.problem-col {
    padding: 3rem;
}

.problem-col.advantage {
    background: rgba(245, 156, 0, 0.03);
    position: relative;
}

.problem-col.advantage::before {
    content: ''; position: absolute;
    top: 0; left: 0; right: 0; width: 100%; height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
}

.problem-list {
    margin-top: 2rem;
}

.problem-list li {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
    color: var(--text-muted);
}

.advantage .problem-list li {
    color: var(--text);
}

.icon-success {
    color: var(--success);
    flex-shrink: 0;
    margin-top: 2px;
}

/* Steps (Ablauf) */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    position: relative;
}

.step-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    padding: 2.5rem 2rem;
    border-radius: var(--radius-lg);
    position: relative;
    z-index: 1;
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.step-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255,255,255,0.2);
}

.step-number {
    position: absolute;
    top: -15px;
    left: 2rem;
    width: 40px;
    height: 40px;
    background: var(--bg-dark);
    border: 1px solid var(--primary);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 1.2rem;
    box-shadow: 0 0 15px var(--primary-subtle);
}

.step-card h3 {
    margin-top: 0.5rem;
    font-size: 1.25rem;
}

.step-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

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

.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    backdrop-filter: blur(10px);
}

.trust-icon {
    width: 60px;
    height: 60px;
    background: rgba(93, 77, 155, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.trust-icon svg {
    stroke: var(--accent-violet);
}

/* Zielgruppe */
.target-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.target-list {margin-top: 2rem;}
.target-list li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-muted);
}
.target-list li strong { color: var(--text); }
.target-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: bold;
}

.visual-card {
    position: relative;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.01) 100%);
}
.visual-badge {
    position: absolute;
    top: -10px;
    right: 20px;
    background: var(--accent-violet);
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* Kontakt Form */
.kontakt-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    padding: 0;
    overflow: hidden;
}

.kontakt-text {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.kontakt-form {
    background: rgba(0,0,0,0.2);
    padding: 3rem;
    border-left: 1px solid var(--border-glass);
}

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

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

.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.08);
}

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

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 1rem;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
}

.footer-links ul li {
    margin-bottom: 0.5rem;
}
.footer-links ul li a {
    color: var(--text-muted);
}
.footer-links ul li a:hover {
    color: var(--text);
}

.footer-bottom {
    border-top: 1px solid var(--border-glass);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
}

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

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* Responsive */
@media (max-width: 900px) {
    .hero-container, .problem-container, .target-container, .kontakt-wrapper {
        grid-template-columns: 1fr;
    }
    
    .hero {
        padding-top: 100px;
        text-align: center;
    }
    
    .hero-content {
        margin: 0 auto;
    }
    
    .hero-ctas, .hero-stats {
        justify-content: center;
    }
    
    .problem-col {
        padding: 2rem;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 640px) {
    .nav {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(1, 1, 1, 0.95);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border-glass);
    }

    .nav.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .kontakt-form {
        padding: 2rem;
        border-left: none;
        border-top: 1px solid var(--border-glass);
    }
}