/* Vorzimmer24 - Linear-Inspired Minimal Design */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
    /* Linear-Style Dark Palette */
    --bg-primary: #0A0A0A;
    --bg-secondary: #111111;
    --bg-tertiary: #1A1A1A;
    --bg-elevated: #1F1F1F;

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --text-tertiary: #6E6E6E;

    /* Accent - Single Color Philosophy */
    --accent: #00D9FF;
    --accent-hover: #00B8D9;
    --accent-subtle: rgba(0, 217, 255, 0.1);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.15);

    /* Shadows - Subtle & Layered */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.35);

    /* Glassmorphism */
    --glass-bg: rgba(26, 26, 26, 0.7);
    --glass-border: rgba(255, 255, 255, 0.08);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Subtle Gradient Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, rgba(0, 217, 255, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(0, 217, 255, 0.02) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Header - Minimal & Sticky */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}

.logo a {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 40px;
    width: auto;
    border-radius: 4px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

.btn-demo {
    background: var(--accent);
    color: var(--bg-primary);
    padding: 8px 16px;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-demo:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

/* Hero - Minimal & Spacious */
.hero {
    padding: 200px 40px 120px;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-size: 72px;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -2px;
    margin-bottom: 24px;
    background: linear-gradient(180deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .highlight {
    background: linear-gradient(135deg, var(--accent) 0%, #00B8D9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 20px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 48px;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
}

.btn {
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.25);
}

.btn-secondary {
    background: var(--bg-elevated);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-strong);
}

.hero-trust {
    font-size: 13px;
    color: var(--text-tertiary);
    font-weight: 500;
}

/* Product Preview - Glassmorphism */
.hero-visual {
    margin-top: 80px;
    perspective: 1000px;
    animation: fadeIn 1s ease-out 0.3s both;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.product-preview {
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-xl);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-preview:hover {
    transform: rotateX(2deg) rotateY(-2deg) translateY(-8px);
}

.preview-image {
    width: 100%;
    height: 500px;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--text-tertiary);
}

/* Section Spacing - HUGE */
section {
    padding: 160px 40px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
    text-align: center;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 80px;
    font-weight: 400;
}

/* Features - Minimal Grid */
.two-pillars {
    background: var(--bg-secondary);
}

.pillars-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.pillar {
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 48px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pillar:hover {
    transform: translateY(-4px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

.pillar-icon {
    font-size: 48px;
    margin-bottom: 24px;
    display: block;
    opacity: 0.9;
}

.pillar h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.pillar-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.6;
}

.pillar-features {
    list-style: none;
}

.pillar-features li {
    padding: 16px 0;
    font-size: 15px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
    transition: color 0.2s ease;
}

.pillar-features li:hover {
    color: var(--text-primary);
}

.pillar-features li:last-child {
    border-bottom: none;
}

/* Feature Highlights - Minimal Cards */
.feature-highlights {
    background: var(--bg-primary);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.highlight-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 40px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.highlight-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

.highlight-icon {
    font-size: 40px;
    margin-bottom: 20px;
    display: block;
}

.highlight-card h4 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.highlight-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Integration Section */
.integration {
    background: var(--bg-secondary);
}

.integration-category {
    margin-bottom: 64px;
}

.integration-category h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 12px;
}

.integration-options {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 16px;
}

.integration-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 24px;
    transition: all 0.2s ease;
}

.integration-card:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-medium);
}

.integration-card h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.integration-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* DSGVO Section - Accent Box */
.dsgvo-section {
    background: var(--bg-primary);
    position: relative;
}

.dsgvo-content {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.dsgvo-box {
    background: var(--accent-subtle);
    border: 1px solid rgba(0, 217, 255, 0.2);
    border-radius: 16px;
    padding: 64px;
}

.dsgvo-icon {
    font-size: 64px;
    margin-bottom: 24px;
}

.dsgvo-content h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 64px;
    letter-spacing: -1px;
}

.dsgvo-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    text-align: left;
}

.dsgvo-item {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 32px;
}

.dsgvo-item strong {
    display: block;
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--accent);
    font-weight: 600;
}

.dsgvo-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 15px;
}

/* Demo Section */
.demo-section {
    background: var(--bg-secondary);
}

.demo-container {
    max-width: 700px;
    margin: 0 auto;
}

.voice-chat-widget {
    background: var(--glass-bg);
    backdrop-filter: blur(40px);
    -webkit-backdrop-filter: blur(40px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 48px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.voice-status {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-weight: 500;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(0, 217, 255, 0.4);
    }
    50% {
        opacity: 0.7;
        box-shadow: 0 0 0 8px rgba(0, 217, 255, 0);
    }
}

.btn-voice {
    width: 120px;
    height: 120px;
    border-radius: 60px;
    background: var(--accent);
    color: var(--bg-primary);
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin: 0 auto 32px;
    box-shadow: 0 8px 24px rgba(0, 217, 255, 0.2);
}

.btn-voice:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 32px rgba(0, 217, 255, 0.3);
}

.btn-voice:active {
    transform: scale(0.98);
}

.mic-icon {
    font-size: 32px;
}

.transcript-area {
    min-height: 100px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    padding: 24px;
    margin-bottom: 24px;
    text-align: left;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.demo-hint {
    font-size: 13px;
    color: var(--text-tertiary);
}

/* Pricing - Minimal Comparison */
.pricing {
    background: var(--bg-primary);
}

.pricing-comparison {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.price-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 48px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.price-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

.price-card.highlight {
    border-color: var(--accent);
    background: var(--accent-subtle);
}

.badge {
    position: absolute;
    top: -12px;
    left: 48px;
    background: var(--accent);
    color: var(--bg-primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.price-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.price {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 32px;
    letter-spacing: -2px;
    line-height: 1;
}

.price span {
    font-size: 20px;
    color: var(--text-secondary);
    font-weight: 500;
}

.price-features {
    list-style: none;
    margin-bottom: 32px;
}

.price-features li {
    padding: 16px 0;
    font-size: 15px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-subtle);
}

.price-features li:last-child {
    border-bottom: none;
}

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

.pricing-note {
    text-align: center;
    margin-top: 48px;
    color: var(--text-tertiary);
    font-size: 14px;
}

/* Trust Section */
.trust {
    background: var(--bg-secondary);
    text-align: center;
}

.trust-content h3 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.trust-content p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 48px;
}

.trust-links {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.trust-link {
    padding: 14px 28px;
    background: var(--bg-elevated);
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
}

.trust-link:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-medium);
    transform: translateY(-2px);
}

/* Contact Form */
.contact {
    background: var(--bg-primary);
}

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 48px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 16px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    padding: 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    transition: all 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-tertiary);
}

.form-privacy {
    margin: 24px 0;
    text-align: left;
}

.form-privacy label {
    display: flex;
    gap: 12px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
}

.contact-form button {
    width: 100%;
}

/* Footer */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: 80px 40px 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr) auto;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto 48px;
    align-items: start;
}

.footer-logo {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    border-radius: 6px;
    opacity: 0.9;
    transition: opacity 0.2s ease;
}

.footer-logo-img:hover {
    opacity: 1;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-col p,
.footer-col li {
    color: var(--text-secondary);
    line-height: 2;
    font-size: 14px;
}

.footer-col ul {
    list-style: none;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--border-subtle);
    color: var(--text-tertiary);
    font-size: 13px;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 56px;
    }

    .pillars-grid,
    .pricing-comparison,
    .dsgvo-features {
        grid-template-columns: 1fr;
    }

    section {
        padding: 100px 24px;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 140px 24px 80px;
    }

    .hero-title {
        font-size: 42px;
    }

    .nav-menu {
        display: none;
    }

    .highlights-grid,
    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-logo {
        justify-content: flex-start;
        margin-top: 24px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--bg-primary);
}