/* ============================================
   KI-Expertenraum - Main Stylesheet
   Refined Professional Theme
   ============================================ */

:root {
    /* Refined Color Schema */
    --primary: #0F172A;
    --secondary: #365F9C;
    --bg-main: #F8F7F4;
    --bg-soft: #F1F3F5;
    --bg-white: #FFFFFF;
    --text-primary: #334155;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --accent-light: #E8EEF8;
    --border: #D9DEE7;
    --accent-gold: #A8843B;
    
    /* Typography */
    --font-display: 'Source Serif 4', serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    
    /* Spacing */
    --container-max: 1200px;
    --container-padding: 48px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 500;
    line-height: 1.3;
    color: var(--primary);
}

h1 { font-size: clamp(32px, 4vw, 52px); }
h2 { font-size: clamp(26px, 3vw, 40px); }
h3 { font-size: clamp(18px, 2vw, 22px); }

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

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

img {
    max-width: 100%;
    height: auto;
}

/* Image Loading Optimization */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s ease;
}

img[loading="lazy"].loaded,
img[loading="eager"] {
    opacity: 1;
}

/* Image placeholder background */
.image-placeholder {
    background: linear-gradient(135deg, var(--bg-soft) 0%, var(--accent-light) 100%);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Prevent layout shift */
img {
    aspect-ratio: attr(width) / attr(height);
}

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

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(248, 247, 244, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-mark {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 600;
}

.logo-text {
    font-family: var(--font-body);
    font-size: 18px;
    font-weight: 500;
    color: var(--primary);
}

.logo-dot {
    color: var(--secondary);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
    list-style: none;
}

.nav-links li {
    display: flex;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 400;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s ease;
    padding: 8px 0;
    min-height: 44px;
    display: flex;
    align-items: center;
}

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

/* Dropdown Menu - Sticky/Click */
.dropdown {
    position: relative;
    display: flex;
    align-items: center;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: white;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px 0;
    min-width: 160px;
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    z-index: 1001;
}

.dropdown.active .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    font-size: 14px;
    color: var(--text-primary);
    transition: all 0.15s ease;
    min-height: 44px;
}

.dropdown-menu a:hover {
    background: var(--bg-soft);
    color: var(--secondary);
}

.dropdown-toggle {
    cursor: pointer;
}

.nav-cta {
    padding: 10px 20px;
    background: var(--primary);
    color: white;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.25s ease;
    min-height: 44px;
    display: flex;
    align-items: center;
}

.nav-cta:hover {
    background: var(--secondary);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    min-height: 44px;
    min-width: 44px;
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--primary);
    margin: 5px 0;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 20px var(--container-padding);
    z-index: 999;
}

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

.mobile-menu a {
    display: block;
    padding: 16px 0;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border);
    min-height: 44px;
}

.mobile-menu a:last-child {
    border-bottom: none;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-body);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.25s ease;
    cursor: pointer;
    border: none;
    min-height: 44px;
}

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

.btn-primary:hover {
    background: var(--secondary);
}

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

.btn-secondary:hover {
    border-color: var(--secondary);
    color: var(--secondary);
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 140px 0 80px;
    background: var(--bg-main);
}

.hero-content {
    max-width: 640px;
}

.section-label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.hero h1 {
    margin-bottom: 20px;
    font-weight: 500;
}

.hero h1 em {
    font-style: italic;
    color: var(--secondary);
    font-weight: 400;
}

.hero-subtitle {
    font-size: clamp(15px, 1.5vw, 17px);
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

/* ============================================
   PROBLEM SECTION
   ============================================ */

.problem {
    padding: 80px 0;
    background: var(--bg-white);
}

.problem h2 {
    color: var(--primary);
    font-weight: 500;
}

/* ============================================
   SECTION HEADER
   ============================================ */

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 56px;
}

.section-header h2 {
    margin-bottom: 12px;
    font-weight: 500;
}

.section-header p {
    font-size: 16px;
}

/* ============================================
   COURSES SECTION
   ============================================ */

.courses {
    padding: 80px 0;
    background: var(--bg-white);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.course-card {
    background: var(--bg-white);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.25s ease;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.course-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
    border-color: var(--border);
}

.course-image {
    height: 160px;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--bg-soft) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
}

.course-content {
    padding: 28px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.course-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background: var(--accent-light);
    color: var(--secondary);
    margin-bottom: 16px;
    width: fit-content;
}

.course-card h3 {
    margin-bottom: 10px;
    color: var(--primary);
    font-weight: 500;
    font-size: 19px;
}

.course-card p {
    font-size: 14px;
    line-height: 1.6;
}

/* ============================================
   ARTICLES SECTION
   ============================================ */

.articles-section {
    padding: 80px 0;
    background: var(--bg-white);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.article-card {
    background: var(--bg-soft);
    border-radius: 12px;
    padding: 24px;
    border: 1px solid var(--border);
    transition: all 0.25s ease;
    text-decoration: none;
    color: inherit;
    display: block;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
    border-color: var(--secondary);
}

.article-card span {
    font-size: 12px;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.article-card h3 {
    margin: 12px 0 8px;
    font-size: 18px;
}

.article-card p {
    font-size: 14px;
    line-height: 1.6;
}

/* ============================================
   RESOURCES SECTION
   ============================================ */

.resources-section {
    padding: 80px 0;
    background: var(--bg-soft);
    border-top: 1px solid var(--border);
}

.resources-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.resources-text h2 {
    margin-bottom: 16px;
}

.resources-text h2 em {
    font-style: italic;
    color: var(--secondary);
}

.resources-text p {
    font-size: 16px;
    margin-bottom: 24px;
}

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

.resources-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 0;
    color: var(--text-secondary);
}

.resources-list li span {
    color: var(--secondary);
    font-weight: 600;
}

.resources-image {
    background: var(--bg-white);
    border-radius: 18px;
    padding: 40px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 40px rgba(15, 23, 42, 0.08);
    text-align: center;
}

.resources-image img {
    max-width: 300px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.1);
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about {
    padding: 80px 0;
    background: var(--bg-white);
}

/* ============================================
   CTA SECTION
   ============================================ */

.cta {
    padding: 80px 0;
    background: var(--bg-soft);
    border-top: 1px solid var(--border);
    text-align: center;
}

.cta h2 {
    margin-bottom: 16px;
}

.cta h2 em {
    font-style: italic;
    color: var(--secondary);
}

.cta p {
    font-size: 17px;
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: var(--primary);
    color: white;
    padding: 56px 0 24px;
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 280px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    margin-bottom: 16px;
}

.footer-logo .logo-mark {
    background: white;
    color: var(--primary);
    width: 32px;
    height: 32px;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-weight: 600;
}

.footer-logo span {
    font-family: var(--font-body);
    font-size: 18px;
    font-weight: 500;
    color: white;
}

.footer-logo .logo-dot {
    color: var(--secondary);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 1.6;
}

.footer-col h4 {
    color: white;
    font-size: 12px;
    font-family: var(--font-mono);
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.55);
    text-decoration: none;
    font-size: 14px;
    padding: 6px 0;
    transition: all 0.15s ease;
    min-height: 32px;
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    display: flex;
    justify-content: space-between;
}

/* ============================================
   GLOSSAR SECTION
   ============================================ */

.alpha-nav {
    background: var(--bg-white);
    padding: 16px 24px;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    border-bottom: 1px solid var(--border);
    border-top: 1px solid var(--border);
    position: sticky;
    top: 72px;
    z-index: 100;
}

.alpha-nav a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--bg-soft);
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s ease;
    border: 1px solid var(--border);
    min-height: 44px;
}

.alpha-nav a:hover {
    background: var(--secondary);
    color: white;
    border-color: var(--secondary);
}

.glossary-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 24px 80px;
}

.letter-section {
    margin-bottom: 50px;
}

.letter-header {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--border);
}

.term-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 28px;
    margin-bottom: 16px;
    border: 1px solid var(--border);
    transition: all 0.2s ease;
}

.term-card:hover {
    border-color: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.term-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
    gap: 16px;
}

.term-title {
    font-family: var(--font-display);
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 4px;
    font-weight: 500;
}

.term-subtitle {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.category-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.badge-tech {
    background: var(--accent-light);
    color: var(--secondary);
}

.badge-business {
    background: #D1FAE5;
    color: #065F46;
}

.badge-ethics {
    background: #EDE9FE;
    color: #5B21B6;
}

.term-description {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    font-size: 15px;
}

.term-example {
    background: var(--bg-soft);
    padding: 16px 20px;
    border-radius: 10px;
    border-left: 3px solid var(--secondary);
    margin-bottom: 12px;
    font-size: 14px;
}

.term-example strong {
    color: var(--secondary);
}

.search-box {
    max-width: 500px;
    margin: 0 auto 40px;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 16px 24px;
    padding-right: 50px;
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    font-family: inherit;
    background: var(--bg-white);
    color: var(--text-primary);
    transition: all 0.2s ease;
    min-height: 44px;
}

.search-box input:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.search-box::after {
    content: '🔍';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
}

/* ============================================
   PROFILE / CONTACT SECTIONS
   ============================================ */

.profile-section {
    display: flex;
    align-items: center;
    gap: 40px;
    margin: 30px 0;
    background: var(--bg-white);
    border-radius: 18px;
    padding: 40px;
    border: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.profile-img {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--border);
    flex-shrink: 0;
}

.profile-info {
    flex: 1;
}

.profile-name {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--primary);
}

.profile-title {
    font-size: 15px;
    color: var(--secondary);
    margin-bottom: 16px;
    font-weight: 500;
}

.profile-text {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 15px;
}

.contact-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 40px 0;
}

.contact-box {
    background: var(--bg-white);
    border-radius: 18px;
    padding: 32px 24px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all 0.25s ease;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.contact-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.08);
}

.contact-title {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--primary);
}

.contact-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.contact-link {
    display: inline-flex;
    background: var(--primary);
    color: white;
    padding: 10px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.25s ease;
    min-height: 44px;
    align-items: center;
}

.contact-link:hover {
    background: var(--secondary);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.img-fluid {
    max-width: 100%;
    height: auto;
}

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

/* ============================================
   RESPONSIVE - TABLET (bis 1024px)
   ============================================ */

@media (max-width: 1024px) {
    :root {
        --container-padding: 32px;
    }

    .nav-links,
    .nav-cta {
        display: none;
    }

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

    .hero {
        padding: 120px 0 60px;
    }

    .hero-grid,
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .hero img {
        max-width: 350px;
        margin: 0 auto;
    }

    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-brand {
        grid-column: span 2;
        max-width: 100%;
    }
}

/* ============================================
   RESPONSIVE - MOBILE (bis 768px)
   ============================================ */

@media (max-width: 768px) {
    :root {
        --container-padding: 20px;
    }

    h1 { font-size: 28px; }
    h2 { font-size: 24px; }
    h3 { font-size: 20px; }

    .hero {
        padding: 100px 0 48px;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero h1 {
        font-size: clamp(26px, 7vw, 36px);
    }

    .hero p {
        font-size: 15px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 10px;
        align-items: center;
    }

    .hero img {
        max-width: 280px;
        margin: 0 auto;
        display: block;
    }

    .hero-image-wrapper {
        order: -1;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

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

    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    /* Resources Section */
    .resources-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .resources-text {
        text-align: center;
    }
    
    .resources-list {
        display: inline-block;
        text-align: left;
    }
    
    .resources-image {
        order: -1;
        padding: 30px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-brand {
        grid-column: span 1;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    /* Profile & Contact */
    .profile-section {
        flex-direction: column;
        text-align: center;
        padding: 30px 24px;
    }

    .profile-img {
        width: 150px;
        height: 150px;
    }

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

    /* Glossar */
    .alpha-nav {
        top: 64px;
        padding: 12px 16px;
        gap: 4px;
    }

    .alpha-nav a {
        width: 36px;
        height: 36px;
        font-size: 13px;
        min-height: 36px;
    }

    .glossary-content {
        padding: 24px 20px 60px;
    }

    .letter-header {
        font-size: 32px;
    }

    .term-card {
        padding: 20px;
    }

    .term-title {
        font-size: 18px;
    }

    .term-header {
        flex-direction: column;
        gap: 8px;
    }

    /* Mobile Menu */
    .mobile-menu {
        padding: 16px var(--container-padding);
    }

    .mobile-menu a {
        padding: 14px 0;
        font-size: 16px;
    }

    /* CTA Section */
    .cta {
        padding: 60px 0;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    /* Section Spacing */
    .courses,
    .articles-section,
    .resources-section,
    .about {
        padding: 60px 0;
    }
}

/* ============================================
   RESPONSIVE - SMALL MOBILE (bis 480px)
   ============================================ */

@media (max-width: 480px) {
    :root {
        --container-padding: 16px;
    }

    h1 { font-size: 24px; }
    h2 { font-size: 20px; }

    .hero {
        padding: 90px 0 40px;
    }

    .section-label {
        font-size: 10px;
    }

    .course-card {
        padding: 0;
    }

    .course-image {
        height: 140px;
    }

    .course-content {
        padding: 20px;
    }

    .impressum-section,
    .privacy-section,
    .checklist-container {
        padding: 24px;
    }

    .resources-image {
        padding: 24px;
    }

    .resources-image img {
        max-width: 100%;
    }

    .contact-box {
        padding: 24px;
    }

    .email-section {
        padding: 24px;
    }

    .what-i-do {
        padding: 24px;
    }

    .what-i-do li {
        flex-direction: column;
        gap: 8px;
    }
}

/* ============================================
   RESPONSIVE - LARGE SCREENS (ab 1400px)
   ============================================ */

@media (min-width: 1400px) {
    :root {
        --container-max: 1320px;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .nav,
    .mobile-menu-btn,
    .mobile-menu,
    .footer {
        display: none;
    }

    body {
        background: white;
    }

    .hero {
        padding: 40px 0;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--secondary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border: #000000;
        --text-secondary: #000000;
    }
}