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

:root {
    /* Color Palette - Bright & Vibrant */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #14b8a6;
    --accent-color: #f59e0b;
    --accent-pink: #ec4899;
    --accent-purple: #a855f7;

    /* Gradients - Vibrant */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warm: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --gradient-cool: linear-gradient(135deg, #30cfd0 0%, #330867 100%);
    --gradient-sunset: linear-gradient(135deg, #ff6b6b 0%, #feca57 100%);

    /* Neutral Colors - Light Theme */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;

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

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;

    /* Shadows - Softer for light theme */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.2);
    --shadow-colored: 0 8px 32px rgba(99, 102, 241, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(79, 70, 229, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
    background-attachment: fixed;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Header Styles */
.header {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.header-content {
    animation: fadeInDown 0.8s ease;
}

.main-title {
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Introduction Section */
.intro-section {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.intro-card {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

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

.intro-card h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.intro-card p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.intro-card p:last-child {
    margin-bottom: 0;
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    color: var(--text-primary);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

/* Main Categories Grid */
.main-categories {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    justify-items: center;
}

.category-card {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    max-width: 560px;
    width: 100%;
    text-align: center;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: var(--primary-color);
    background: var(--bg-card-hover);
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.category-card h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    font-weight: 600;
}

.category-card>p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    font-size: 1.05rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-normal);
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    margin-bottom: var(--spacing-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.arrow {
    transition: transform var(--transition-normal);
    position: relative;
    z-index: 1;
}

.btn:hover .arrow {
    transform: translateX(4px);
}

/* Sub-folders */
.sub-folders {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.sub-folders h4 {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.sub-folder-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: left;
}

.sub-folder-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

.sub-folder-link:hover {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(236, 72, 153, 0.15) 100%);
    color: var(--text-primary);
    transform: translateX(8px);
    border-color: var(--primary-color);
}

.folder-icon {
    font-size: 1.25rem;
    transition: transform var(--transition-fast);
}

.sub-folder-link:hover .folder-icon {
    transform: scale(1.2);
}

/* Quick Access Section */
.quick-access {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.6s both;
}

.quick-access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.quick-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-card);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-normal);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.quick-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.quick-link:hover::before {
    opacity: 0.1;
}

.quick-link:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.quick-icon {
    font-size: 1.75rem;
    transition: transform var(--transition-normal);
    position: relative;
    z-index: 1;
}

.quick-link:hover .quick-icon {
    transform: rotate(10deg) scale(1.1);
}

.quick-link span:last-child {
    font-weight: 500;
    position: relative;
    z-index: 1;
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    margin-top: var(--spacing-xl);
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    animation: fadeIn 1s ease 0.8s both;
}

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

.footer-note {
    font-size: 0.9rem;
    font-style: italic;
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

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

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .category-grid {
        grid-template-columns: 1fr;
    }

    .quick-access-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }

    .main-title {
        font-size: 2.5rem;
    }

    .subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .category-card h3 {
        font-size: 1.5rem;
    }

    .quick-access-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }

    .card-icon {
        font-size: 2.5rem;
    }

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

/* ===== Impressum Styles ===== */
/* Header Logo Styles */
.header-logo {
    max-width: 200px;
    height: auto;
    margin-bottom: var(--spacing-md);
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
    transition: transform var(--transition-normal);
}

.header-logo:hover {
    transform: scale(1.05);
}

/* Impressum Section */
.impressum-section {
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.8s both;
}

.impressum-content {
    display: flex;
    justify-content: center;
}

.impressum-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    max-width: 800px;
    width: 100%;
}

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

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.contact-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 1.05rem;
    transition: color var(--transition-fast);
}

.contact-item a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Social Media Icons */
.social-media-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.social-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.social-icon svg {
    position: relative;
    z-index: 1;
}

.social-icon.facebook {
    background: linear-gradient(135deg, #1877f2 0%, #0d5dbf 100%);
    color: white;
}

.social-icon.facebook:hover {
    background: linear-gradient(135deg, #0d5dbf 0%, #1877f2 100%);
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 8px 20px rgba(24, 119, 242, 0.4);
}

.social-icon.instagram {
    background: linear-gradient(135deg, #f09433 0%, #e6683c 25%, #dc2743 50%, #cc2366 75%, #bc1888 100%);
    color: white;
}

.social-icon.instagram:hover {
    background: linear-gradient(135deg, #bc1888 0%, #cc2366 25%, #dc2743 50%, #e6683c 75%, #f09433 100%);
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 8px 20px rgba(188, 24, 136, 0.4);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .contact-info {
        grid-template-columns: 1fr;
    }

    .impressum-card {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 480px) {
    .header-logo {
        max-width: 150px;
    }

    .social-icon {
        width: 48px;
        height: 48px;
    }

    .social-icon svg {
        width: 28px;
        height: 28px;
    }
}