/* ========================================
   CSS Variables & Design System
   ======================================== */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-accent: #0ea5e9;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-border: #e5e7eb;
    --color-success: #10b981;
    --color-focus: #3b82f6;

    /* Typography */
    --font-system: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    scroll-padding-top: 80px; /* Offset for fixed header */
}

body {
    font-family: var(--font-system);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

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

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

a:focus {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

/* ========================================
   Layout Components
   ======================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-3xl) 0;
}

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-intro {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-text-light);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
}

/* ========================================
   Accessibility
   ======================================== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-sm);
    z-index: 100;
    text-decoration: none;
}

.skip-link:focus {
    top: 0;
}

/* ========================================
   Header & Navigation
   ======================================== */
.header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 50;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    color: white;
    border-radius: var(--border-radius);
    font-size: 1.25rem;
}

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

.nav {
    display: flex;
    gap: var(--spacing-md);
}

.nav-link {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    background-color: var(--color-bg-light);
}

.nav-link.active {
    background-color: var(--color-primary);
    color: white;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.hero-badge {
    margin-top: var(--spacing-lg);
}

.badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-primary);
    color: white;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
}

.badge-link {
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.badge-link:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.4);
    color: white;
}

.badge-link:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.3);
}

.badge-link:focus {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

/* ========================================
   Cards
   ======================================== */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.card {
    background-color: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.card-title {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.card-text {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ========================================
   Steps
   ======================================== */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.step {
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--color-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step-title {
    margin-bottom: var(--spacing-sm);
}

.step-text {
    color: var(--color-text-light);
    margin-bottom: 0;
}

/* ========================================
   Industries
   ======================================== */
.industries {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.industry-item {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
}

.industry-item:hover {
    border-color: var(--color-primary);
    background-color: #f0f9ff;
}

.industries-note {
    margin-top: var(--spacing-lg);
    text-align: center;
    color: var(--color-text-light);
    font-style: italic;
}

/* ========================================
   Trust & Compliance
   ======================================== */
.trust-content {
    max-width: 800px;
    margin: 0 auto;
}

.trust-list {
    list-style: none;
    margin-top: var(--spacing-lg);
}

.trust-list li {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background-color: var(--color-bg-light);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--border-radius);
}

.trust-list strong {
    color: var(--color-primary);
}

/* ========================================
   CTA Section
   ======================================== */
.section-cta {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    color: white;
}

.section-cta .section-title,
.section-cta .cta-text {
    color: white;
}

.cta-content {
    max-width: 700px;
    margin: 0 auto;
}

.cta-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.cta-text {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

/* ========================================
   Forms
   ======================================== */
.cta-form {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text);
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-system);
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-checkbox {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

.form-checkbox input[type="checkbox"] {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-label {
    font-size: 0.875rem;
    color: var(--color-text-light);
    font-weight: 400;
}

.checkbox-label .link {
    text-decoration: underline;
}

.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-system);
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-primary:focus {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

.form-note {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--color-text-light);
    text-align: center;
    margin-bottom: 0;
}

/* ========================================
   FAQ
   ======================================== */
.faq {
    max-width: 800px;
    margin: var(--spacing-xl) auto 0;
}

.faq-item {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.faq-question {
    padding: var(--spacing-md);
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    user-select: none;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--color-bg-light);
}

.faq-question::marker,
.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    float: right;
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-primary);
}

.faq-item[open] .faq-question::after {
    content: '−';
}

.faq-answer {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text-light);
}

.faq-answer p {
    margin-bottom: 0;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--color-text);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section {
    /* Grid handles layout */
}

.footer-title {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-link {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-link:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
}

.footer-notice {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-sm);
}

.footer-copy {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    :root {
        --spacing-3xl: 3rem;
        --spacing-2xl: 2.5rem;
    }

    .hero {
        padding: var(--spacing-2xl) 0;
    }

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

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

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

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

    .cta-form {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.5rem;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .header,
    .footer,
    .cta-form,
    .badge {
        display: none;
    }

    body {
        color: black;
    }

    a {
        text-decoration: underline;
    }
}

/* ========================================
   Anti-Bot / Honeypot Field
   ======================================== */
.honeypot-field {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
    overflow: hidden;
}

/* Zusätzliche Versteckung für verschiedene Bot-Typen */
.honeypot-field input {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    opacity: 0;
    tab-index: -1;
}