/* ===== CSS RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'n27light', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* ===== CSS CUSTOM PROPERTIES (THEMES) ===== */
:root {
    /* Accent Colors */
    --accent-green: #92e177;
    --accent-blue: #02658c;
    --accent-light-blue: #cdf6ff;
    --accent-gray-blue: #6d96b1;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    --spacing-xxxl: 6rem;
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light Theme */
[data-theme="light"] {
    --background-primary: #ffffff;
    --background-secondary: #f4f4f4;
    --background-tertiary: #e0e0e0;
    --text-primary: #161616;
    --text-secondary: #525252;
    --text-tertiary: #8d8d8d;
    --border-primary: #e0e0e0;
    --border-secondary: #c6c6c6;
    --overlay: rgba(22, 22, 22, 0.5);
}

/* Dark Theme */
[data-theme="dark"] {
    --background-primary: #161616;
    --background-secondary: #262626;
    --background-tertiary: #393939;
    --text-primary: #f4f4f4;
    --text-secondary: #c6c6c6;
    --text-tertiary: #8d8d8d;
    --border-primary: #393939;
    --border-secondary: #525252;
    --overlay: rgba(0, 0, 0, 0.7);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'n27medium', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 {
    font-size: var(--font-size-5xl);
    font-weight: 500;
}

h2 {
    font-size: var(--font-size-4xl);
    font-weight: 500;
}

h3 {
    font-size: var(--font-size-2xl);
    font-weight: 500;
}

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

strong {
    color: var(--text-primary);
    font-family: 'n27medium', sans-serif;
}

/* Quotes */
blockquote {
    font-family: 'n27medium_italic', serif;
    font-style: italic;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    border-left: 4px solid var(--accent-green);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

/* ===== LAYOUT COMPONENTS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* ===== BUTTONS ===== */
.cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    color: white;
    text-decoration: none;
    border-radius: var(--radius-md);
    font-family: 'n27medium', sans-serif;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.cta-button.primary {
    background: var(--accent-blue);
}

.cta-button.primary:hover {
    background: var(--accent-gray-blue);
}

/* ===== NAVIGATION TOGGLES ===== */
.language-toggle,
.theme-toggle {
    position: fixed;
    z-index: 1000;
    background: var(--background-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xs);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-primary);
    /* Hide the toggles */
    display: none !important;
}

.language-toggle {
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    gap: var(--spacing-xs);
    /* Hide the language toggle */
    display: none !important;
}

.theme-toggle {
    top: var(--spacing-md);
    right: calc(var(--spacing-md) + 120px);
    /* Hide the theme toggle */
    display: none !important;
}

.lang-btn,
.theme-btn {
    background: transparent;
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-family: 'n27medium', sans-serif;
    font-size: var(--font-size-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.lang-btn.active,
.lang-btn:hover,
.theme-btn:hover {
    background: var(--accent-green);
    color: white;
    transform: scale(1.05);
}

.theme-icon {
    font-size: var(--font-size-lg);
}

/* ===== SECTIONS ===== */
section {
    padding: var(--spacing-xxxl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.hero-background-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -1;
    opacity: 0;
    transition: opacity 1s ease;
}

.hero-background-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: -2;
}

.video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--overlay);
}

.hero-content {
    text-align: center;
    max-width: 900px;
    padding: 0 var(--spacing-md);
    z-index: 1;
}

.hero-title {
    font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-6xl));
    color: white;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(var(--font-size-base), 2vw, var(--font-size-xl));
    color: var(--accent-light-blue);
    margin-bottom: var(--spacing-xl);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-cta {
    margin-top: var(--spacing-xl);
}

/* ===== WANDEL SECTION ===== */
.wandel {
    background: var(--background-secondary);
}

.wandel-content {
    display: grid;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
    .wandel-content {
        grid-template-columns: 1fr 1fr;
    }
}

.text-block h3 {
    color: var(--accent-blue);
    margin-bottom: var(--spacing-md);
}

.image-collage {
    margin-top: var(--spacing-xl);
}

/* ===== REALLABOR SECTION ===== */
.reallabor-content {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
}

@media (min-width: 768px) {
    .reallabor-content {
        grid-template-columns: 1fr 1fr;
    }
}

.text-content p {
    font-size: var(--font-size-xl);
}

/* ===== TESTFELD SECTION ===== */
.testfeld {
    background: var(--background-secondary);
}

.testfeld-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
    .testfeld-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .testfeld-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.testfeld-card {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--border-primary);
    cursor: pointer;
}

.testfeld-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--accent-green);
}

.testfeld-card h3 {
    color: var(--accent-blue);
    margin-bottom: var(--spacing-sm);
}

.card-image {
    margin-bottom: var(--spacing-md);
}

/* ===== VORTEILE SECTION ===== */
.vorteile-content {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
}

@media (min-width: 768px) {
    .vorteile-content {
        grid-template-columns: 1fr 1fr;
    }
}

.intro-text {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

.benefits-list {
    list-style: none;
    padding: 0;
}

.benefits-list li {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--background-secondary);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-green);
    transition: all var(--transition-base);
}

.benefits-list li:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.benefits-list strong {
    display: block;
    color: var(--accent-blue);
    margin-bottom: var(--spacing-xs);
}

/* ===== BEIRAT SECTION ===== */
.beirat {
    background: var(--background-secondary);
}

.beirat-intro {
    text-align: center;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.beirat-grid {
    display: grid;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

@media (min-width: 768px) {
    .beirat-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .beirat-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.beirat-member {
    text-align: center;
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--border-primary);
}

.beirat-member:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.member-image {
    margin-bottom: var(--spacing-md);
}

.beirat-member h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.member-role {
    color: var(--accent-blue);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* ===== CONTACT SECTION ===== */
.contact-text {
    text-align: center;
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ===== INSTAGRAM SECTION ===== */
.instagram {
    background: var(--background-secondary);
}

.instagram-slider-container {
    position: relative;
    margin: var(--spacing-xl) 0;
}

.instagram-slider {
    display: flex;
    gap: var(--spacing-lg);
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: var(--spacing-md) 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.instagram-slider::-webkit-scrollbar {
    display: none;
}

.instagram-post {
    flex: 0 0 300px;
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--border-primary);
}

.instagram-post:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.instagram-post-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    object-position: center;
}

.instagram-post-content {
    padding: var(--spacing-md);
}

.instagram-post-caption {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.instagram-post-date {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    margin-top: var(--spacing-xs);
}

.instagram-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-primary);
    border-top: 3px solid var(--accent-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.slider-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
}

.slider-btn {
    background: var(--background-primary);
    border: 1px solid var(--border-primary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
    pointer-events: all;
}

.slider-btn:hover {
    background: var(--accent-green);
    color: white;
    transform: scale(1.1);
}

.slider-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.instagram-cta {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* ===== PARTNERS SECTION ===== */
.partners {
    padding: var(--spacing-xl) 0;
}

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

.partners-slider {
    display: flex; 
    gap: var(--spacing-xl);
    justify-content: center;
    align-items: center;
    flex-wrap: nowrap;
    overflow: hidden;
}

.partner-logo {
    flex-shrink: 0;
    opacity: 0.7;
    transition: opacity var(--transition-base);
}

.partner-logo:hover {
    opacity: 1;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--background-tertiary);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--border-primary);
}

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

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-blue);
}

.separator {
    margin: 0 var(--spacing-sm);
    color: var(--text-tertiary);
}

/* ===== IMAGES ===== */
/* Section Images */
.section-image {
    width: 100%;
    height: 640px;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.section-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

/* Card Images */
.card-image-img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    object-position: center;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.testfeld-card:hover .card-image-img {
    transform: scale(1.05);
}

/* Member Images */
.member-image-img {
    width: 120px;
    height: 120px;
    object-fit: cover;
    object-position: center;
    border-radius: 50%;
    margin: 0 auto;
    display: block;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.beirat-member:hover .member-image-img {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* Partner Logo Images */
.partner-logo-img {
    width: 180px;
    height: 90px;
    object-fit: contain;
    object-position: center;
    filter: grayscale(100%) opacity(0.7);
    transition: all var(--transition-base);
}

.partner-logo:hover .partner-logo-img {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.05);
}

/* Responsive Image Adjustments */
@media (max-width: 767px) {
    .section-image {
        height: 200px;
    }
    
    .card-image-img {
        height: 120px;
    }
    
    .member-image-img {
        width: 100px;
        height: 100px;
    }
    
    .partner-logo-img {
        width: 120px;
        height: 60px;
    }
    
    .instagram-post {
        flex: 0 0 250px;
    }
    
    .instagram-post-image {
        height: 250px;
    }
}

@media (min-width: 768px) and (max-width: 1023px) {
    .section-image {
        height: 250px;
    }
    
    .card-image-img {
        height: 140px;
    }
}

/* Image Loading States */
.section-image,
.card-image-img,
.member-image-img,
.partner-logo-img,
.hero-background-image,
.instagram-post-image {
    background: linear-gradient(135deg, var(--background-tertiary), var(--background-secondary));
    position: relative;
}

.section-image::before,
.card-image-img::before,
.member-image-img::before,
.partner-logo-img::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 2s infinite;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.section-image:not([src]),
.card-image-img:not([src]),
.member-image-img:not([src]),
.partner-logo-img:not([src]) {
    background: linear-gradient(135deg, #e0e0e0, #c0c0c0);
}

[data-theme="dark"] .section-image:not([src]),
[data-theme="dark"] .card-image-img:not([src]),
[data-theme="dark"] .member-image-img:not([src]),
[data-theme="dark"] .partner-logo-img:not([src]) {
    background: linear-gradient(135deg, #393939, #525252);
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 767px) {
    .language-toggle {
        right: var(--spacing-sm);
        top: var(--spacing-sm);
        /* Hide the language toggle on mobile */
        display: none !important;
    }
    
    .theme-toggle {
        right: calc(var(--spacing-sm) + 100px);
        top: var(--spacing-sm);
        /* Hide the theme toggle on mobile */
        display: none !important;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
}

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

.animate-on-scroll {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .partners-slider {
        animation: none;
    }
}

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

/* ===== PRINT STYLES ===== */
@media print {
    .language-toggle,
    .theme-toggle,
    .hero-video {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .cta-button {
        background: black;
        color: white;
    }
}