/* ============================================
   Manuel Pankop - Bahnbetrieb Beratung
   Professionelles & Nüchternes Design
   ============================================ */

/* Selbst gehostete Cantarell Font (Variable Font) */
@font-face {
  font-family: 'Cantarell';
  src: url('/fonts/Cantarell-VF.otf') format('opentype');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* CSS Custom Properties */
:root {
    /* Primärfarben - Professionell & Vertrauenswürdig */
    --color-primary: #1a365d;
    --color-primary-light: #2563eb;
    --color-primary-dark: #0f172a;
    --color-secondary: #475569;
    --color-accent: #3b82f6;
    
    /* Signal-Farbe - nur für subtile Akzente */
    --color-signal: #c53030;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    
    /* Background Colors */
    --bg-primary: var(--color-white);
    --bg-secondary: var(--color-gray-50);
    --bg-dark: var(--color-primary-dark);
    --bg-accent: #1e40af;
    
    /* Text Colors */
    --text-primary: var(--color-gray-900);
    --text-secondary: var(--color-gray-600);
    --text-light: var(--color-gray-400);
    --text-inverse: var(--color-white);
    
    /* Fonts */
    --font-primary: 'Cantarell', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius - Scharfe Kanten für technisches Design */
    --radius-none: 0;
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    
    /* Layout */
    --container-max: 1200px;
    --header-height: 80px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    padding-top: var(--header-height);
}

::selection { background: var(--color-primary); color: var(--color-white); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-gray-100); }
::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-gray-400); }

/* ============================================
   Typography - Klar & Professionell
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
    letter-spacing: 0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 600; }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); font-weight: 600; }

p { margin-bottom: var(--spacing-md); }
p:last-child { margin-bottom: 0; }

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

ul, ol { margin-bottom: var(--spacing-md); padding-left: var(--spacing-lg); }
li { margin-bottom: var(--spacing-xs); }

/* Container */
.container { width: 100%; max-width: var(--container-max); margin: 0 auto; padding: 0 var(--spacing-md); }

/* Section */
.section { padding: var(--spacing-3xl) 0; }
.section-header { text-align: center; margin-bottom: var(--spacing-2xl); }
.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: var(--spacing-md) auto 0;
}

/* Background Utility Classes */
.bg-secondary { background-color: var(--bg-secondary); }
.bg-accent {
    background-color: var(--bg-accent);
    color: var(--color-gray-200);
}
.bg-accent h2,
.bg-accent h3,
.bg-accent p,
.bg-accent .section-subtitle {
    color: var(--color-gray-200);
}
.bg-accent .btn-mail {
    background: var(--color-gray-600);
    color: var(--color-white);
}
.bg-accent .btn-mail:hover {
    background: var(--color-gray-700);
    color: var(--color-white);
}
.bg-accent .btn-phone {
    background: var(--color-gray-300);
    color: var(--color-gray-800);
}
.bg-accent .btn-phone:hover {
    background: var(--color-gray-400);
    color: var(--color-gray-800);
}
.bg-accent .btn-link {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-gray-200);
    border: 1px solid rgba(255, 255, 255, 0.3);
}
.bg-accent .btn-link:hover {
    background: rgba(255, 255, 255, 0.3);
    color: var(--color-gray-200);
}

/* ============================================
   Header & Navigation - Professionell & Klar
   ============================================ */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}
.header.scrolled { box-shadow: var(--shadow-md); }

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.logo { display: flex; align-items: center; height: 100%; }
.logo img {
    height: 48px;
    width: auto;
    max-width: 100%;
    transition: transform var(--transition-base);
}
.logo img:hover { transform: scale(1.02); }

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    list-style: none;
    height: 100%;
}

.nav-link {
    font-weight: 500;
    color: var(--color-white);
    transition: color var(--transition-fast);
    padding: var(--spacing-sm) 0;
}
.nav-link:hover, .nav-link.active {
    color: rgba(255, 255, 255, 0.8);
}

/* Mobile Menu Button */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px; height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}
.menu-toggle {
    position: relative;
}
.menu-toggle span {
    display: block;
    width: 24px; height: 2px;
    background: var(--color-white);
    position: absolute;
    left: 8px;
    transition: all var(--transition-fast);
    border-radius: var(--radius-sm);
}
.menu-toggle span:nth-child(1) { top: 10px; }
.menu-toggle span:nth-child(2) { top: 19px; }
.menu-toggle span:nth-child(3) { top: 28px; }
.menu-toggle.active span:nth-child(1) { transform: rotate(45deg); top: 19px; }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg); top: 19px; }

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    justify-content: flex-start;
    padding: var(--spacing-xl) var(--spacing-md);
    gap: var(--spacing-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
    overflow-y: auto;
}
.mobile-menu.active { opacity: 1; visibility: visible; }
.mobile-menu .nav-menu {
    flex-direction: column;
    gap: var(--spacing-md);
    display: flex;
    align-items: flex-end;
    width: 100%;
}
.mobile-menu .nav-link {
    font-size: 1.25rem;
    color: var(--color-white);
    text-align: right;
}
.mobile-menu .nav-link:hover { color: rgba(255, 255, 255, 0.8); }

/* ============================================
   Hero Section - Clean & Professional
   ============================================ */
.hero {
    padding: var(--spacing-3xl) 0 var(--spacing-3xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.hero-content { max-width: 900px; }
.hero-title { margin-bottom: var(--spacing-lg); font-weight: 800; }
.hero-title .highlight {
    color: var(--color-primary);
}

.hero-video {
    margin: var(--spacing-xl) 0 var(--spacing-xl);
    width: 100%;
    max-width: 800px;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.hero-video video {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 700px;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.hero-feature-icon {
    width: 20px; height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 0.875rem;
    flex-shrink: 0;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: var(--spacing-md); margin-bottom: var(--spacing-md); }
.hero-cta { display: flex; flex-wrap: wrap; gap: var(--spacing-md); }
.hero-actions .btn-link {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}
.hero-actions .btn-link:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ============================================
   Buttons - Professional & Subtle
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-mail {
    background: var(--color-primary);
    color: var(--color-white);
}
.btn-mail:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-phone {
    background: var(--color-primary-light);
    color: var(--color-white);
}
.btn-phone:hover {
    background: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-link {
    background: var(--color-gray-100);
    color: var(--color-primary);
}
.btn-link:hover {
    background: var(--color-gray-200);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}
.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ============================================
   Layout - Two Column
   ============================================ */
.two-column {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

/* ============================================
   Cards - Clean Design with Subtle Accents
   ============================================ */
.card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    border-left: 3px solid var(--color-primary);
}
.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-icon {
    width: 100%;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.25rem;
    color: var(--color-white);
    overflow: hidden;
}
.card-icon img {
    width: 100%;
    height: auto;
    display: block;
}

.card-title { font-size: 1.25rem; margin-bottom: var(--spacing-sm); font-weight: 700; }
.card-text { color: var(--text-secondary); }

/* ============================================
   Approach Section Layout
   ============================================ */
.approach-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

.approach-intro {
    width: 100%;
}

.approach-intro .section-subtitle {
    text-align: left;
    margin: 0;
}

.approach-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.approach-cards .card {
    aspect-ratio: 1;
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
}

@media (min-width: 768px) {
    .approach-layout {
        grid-template-columns: 50% 50%;
        align-items: start;
    }
    .approach-intro {
        padding-right: var(--spacing-xl);
    }
    .approach-cards {
        gap: var(--spacing-lg);
    }
}

/* ============================================
   Service Cards
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--color-white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}
.service-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.service-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 2rem;
}

.service-content { padding: var(--spacing-xl); }
.service-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-primary);
    background: var(--color-gray-100);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}
.service-title { font-size: 1.375rem; margin-bottom: var(--spacing-sm); font-weight: 700; }
.service-description { color: var(--text-secondary); margin-bottom: var(--spacing-lg); }
.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    color: var(--color-primary);
}
.service-link:hover { text-decoration: underline; }

/* ============================================
   Testimonials
   ============================================ */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.testimonial {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    border-left: 3px solid var(--color-primary);
    transition: all var(--transition-base);
}
.testimonial:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }

.testimonial-content {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    position: relative;
}
.testimonial-content::before {
    content: '\"';
    font-size: 3rem;
    color: var(--color-gray-200);
    position: absolute;
    top: -10px;
    left: -5px;
    line-height: 1;
}

.testimonial-author { display: flex; align-items: center; gap: var(--spacing-md); }
.testimonial-avatar {
    width: 50px; height: 50px;
    border-radius: 50%;
    background: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-weight: 700;
    font-size: 1.25rem;
}
.testimonial-info { flex: 1; }
.testimonial-name { font-weight: 700; color: var(--text-primary); }
.testimonial-company { font-size: 0.875rem; color: var(--text-secondary); }
.testimonial-date { font-size: 0.875rem; color: var(--text-light); text-align: right; }

/* ============================================
   Reference Section
   ============================================ */
.reference {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    border-left: 3px solid var(--color-primary);
}
.reference:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.reference-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-md);
}
.reference-logo { font-weight: 700; font-size: 1.125rem; color: var(--color-primary); }
.reference-year {
    font-size: 0.875rem;
    color: var(--text-light);
    background: var(--color-gray-100);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}
.reference-title { font-size: 1.125rem; margin-bottom: var(--spacing-sm); font-weight: 700; }
.reference-description { color: var(--text-secondary); }

/* ============================================
   About Section
   ============================================ */
.about-content {
    display: block;
    width: 100%;
}
.about-text {
    width: 100%;
}
.about-image {
    width: 100%;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}
.about-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

/* ============================================
   Practice Section
   ============================================ */
.practice-content {
    display: block;
    width: 100%;
}
.practice-text {
    width: 100%;
    text-align: left;
}
.practice-image {
    width: 100%;
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}
.practice-image img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-md);
}

@media (min-width: 768px) {
    .practice-text {
        display: grid;
        grid-template-columns: 33% 1fr;
        gap: var(--spacing-lg);
        align-items: start;
        text-align: left;
    }
    .practice-text > h2 {
        grid-column: 1 / span 2;
        margin-bottom: var(--spacing-lg);
    }
    .practice-image {
        grid-column: 1;
        width: 100%;
        margin: 0;
    }
    .practice-text-content {
        grid-column: 2;
    }
    .about-image {
        float: right;
        width: 300px;
        margin: 0 0 var(--spacing-lg) var(--spacing-2xl);
    }
    .about-text {
        overflow: hidden;
    }
}

.skills { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); margin-top: var(--spacing-lg); }
.skill-tag {
    background: var(--color-gray-100);
    color: var(--text-secondary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
}

.experience-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-gray-200);
}
.experience-item:last-child { border-bottom: none; }
.experience-period { font-weight: 600; color: var(--color-primary); min-width: 120px; }
.experience-content { flex: 1; }
.experience-title { font-weight: 700; color: var(--text-primary); }
.experience-company { color: var(--text-secondary); font-size: 0.875rem; }

/* Timeline */
.timeline { position: relative; padding-left: var(--spacing-xl); }
.timeline::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 2px;
    background: var(--color-gray-200);
}
.timeline-item { position: relative; padding-bottom: var(--spacing-xl); }
.timeline-item::before {
    content: '';
    position: absolute;
    left: -8px; top: 4px;
    width: 16px; height: 16px;
    background: var(--color-primary);
    border-radius: 50%;
    border: 3px solid var(--color-white);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   CTA Section
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}
.cta-title { color: var(--color-white); margin-bottom: var(--spacing-md); }
.cta-text {
    color: rgba(255, 255, 255, 0.9);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
}
.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
}
.cta-actions .btn-mail {
    background: var(--color-white);
    color: var(--color-primary-dark);
    border: 2px solid var(--color-white);
}
.cta-actions .btn-mail:hover {
    background: transparent;
    color: var(--color-white);
}
.cta-actions .btn-phone {
    background: var(--color-white);
    color: var(--color-primary-dark);
    border: 2px solid var(--color-white);
}
.cta-actions .btn-phone:hover {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}
.cta-actions .btn-link {
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}
.cta-actions .btn-link:hover { background: rgba(255, 255, 255, 0.3); }

/* ============================================
   Stats Section
   ============================================ */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    text-align: center;
}
.stat { padding: var(--spacing-xl); }
.stat-number {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}
.stat-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

/* ============================================
   Contact Section
   ============================================ */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}
.contact-item { display: flex; align-items: flex-start; gap: var(--spacing-md); }
.contact-icon {
    width: 50px; height: 50px;
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--color-primary);
}
.contact-label { font-weight: 600; color: var(--text-primary); margin-bottom: var(--spacing-xs); }
.contact-value { color: var(--text-secondary); }
.contact-value a { color: var(--color-primary); font-weight: 600; }
.contact-value a:hover { text-decoration: underline; }

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}
.footer-section h3 {
    color: var(--color-white);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: var(--spacing-sm); }
.footer-links a {
    color: var(--color-gray-400);
    transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-white); }
.footer-bottom {
    border-top: 1px solid var(--color-gray-800);
    padding-top: var(--spacing-xl);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    font-size: 0.875rem;
}
.footer-legal { display: flex; gap: var(--spacing-lg); }
.footer-legal a { color: var(--color-gray-400); }
.footer-legal a:hover { color: var(--color-white); }
.footer-copyright { color: var(--color-gray-500); }

/* ============================================
   Form Elements
   ============================================ */
input[type="text"], input[type="email"], input[type="tel"], textarea, select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--color-white);
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}
textarea { resize: vertical; min-height: 150px; }
label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
}
button[type="submit"], button[type="button"] { cursor: pointer; }

/* ============================================
   Utility Classes
   ============================================ */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.py-xs { padding-top: var(--spacing-xs); padding-bottom: var(--spacing-xs); }
.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }

.mx-auto { margin-left: auto; margin-right: auto; }

.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-xs { gap: var(--spacing-xs); }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 820px) {
    .nav-menu { display: none; }
    .menu-toggle { display: flex; }
    .logo { height: auto; }
    .logo img { height: 40px; }
    .hero {
        padding-top: var(--spacing-2xl);
        padding-bottom: var(--spacing-2xl);
        min-height: auto;
    }
    .two-column {
        grid-template-columns: 1fr;
    }
    .hero-actions { flex-direction: column; align-items: flex-start; }
    .hero-cta { flex-direction: column; align-items: flex-start; }
    .btn { width: 100%; justify-content: center; }
    .section { padding: var(--spacing-2xl) 0; }
    .about-image {
        float: none;
        width: 100%;
        margin: var(--spacing-md) 0;
    }
    .contact-info { grid-template-columns: 1fr; }
    .contact-item {
        padding-left: 0;
        border-left: none;
        border-top: 2px solid var(--color-gray-200);
    }
    .contact-item:first-child { border-top: none; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .footer-legal { flex-direction: column; gap: var(--spacing-sm); }
    .testimonial-author { flex-direction: column; align-items: flex-start; gap: var(--spacing-sm); }
    .timeline { padding-left: var(--spacing-md); }
    .timeline::before { left: 0; }
    .timeline-item::before { left: -5px; }
    .timeline-item { margin-left: var(--spacing-sm); padding-bottom: var(--spacing-lg); }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.75rem; }
    .hero-subtitle { font-size: 1rem; }
    .services-grid, .testimonials { grid-template-columns: 1fr; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .stat { padding: var(--spacing-lg); }
    .cta-title { font-size: 1.5rem; }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .header, .menu-toggle, .mobile-menu, .hero-actions, .btn, .footer {
        display: none !important;
    }
    body { font-size: 12pt; padding-top: 0; }
    .section { page-break-inside: avoid; }
    a { text-decoration: none; color: inherit; }
    .logo img { filter: none; height: 30px; }
}

/* ============================================
   Accessibility
   ============================================ */
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 10000;
    transition: top var(--transition-fast);
}
.skip-link:focus { top: 0; }

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.animate-fade-in { animation: fadeIn 0.6s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
    }
    html { scroll-behavior: auto; }
    .card:hover, .service-card:hover, .testimonial:hover, .reference:hover, .btn:hover {
        transform: none !important;
    }
}

/* ============================================
   Section CTA Buttons - Unter jedem Container
   ============================================ */
.section-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-gray-200);
}

/* ============================================
   Contact Form Overlay
   ============================================ */
.contact-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}
.contact-overlay.active {
    opacity: 1;
    visibility: visible;
}

.contact-modal {
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: var(--spacing-2xl);
    position: relative;
    transform: scale(0.9);
    transition: transform var(--transition-base);
}
.contact-overlay.active .contact-modal {
    transform: scale(1);
}

.contact-modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: transparent;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-fast);
}
.contact-modal-close:hover {
    background: var(--color-gray-100);
    color: var(--text-primary);
}

.contact-modal h2 {
    margin-bottom: var(--spacing-lg);
    text-align: center;
    text-transform: uppercase;
    font-weight: 700;
}

.contact-modal-form {
    display: grid;
    gap: var(--spacing-lg);
}

.contact-modal-form input,
.contact-modal-form textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.contact-modal-form input:focus,
.contact-modal-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(26, 54, 93, 0.1);
}

.contact-modal-form textarea {
    min-height: 150px;
    resize: vertical;
}

.contact-modal-form label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.contact-modal-form button[type="submit"] {
    background: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.contact-modal-form button[type="submit"]:hover {
    background: var(--color-primary-dark);
}

.contact-modal-success {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--color-success);
}