/* Reset und Grundlagen */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Entferne gelbe Umrandungen bei Focus */
*:focus {
    outline: none;
}

a:focus,
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #2c3e50;
    color: #fff;
    padding: 20px 0;
    z-index: 9999;
    display: none;
}

.cookie-banner.show {
    display: block;
}

.cookie-banner .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.cookie-accept {
    background-color: #d9534f;
    color: #fff;
    border: none;
    padding: 10px 25px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s;
}

.cookie-accept:hover {
    background-color: #c9302c;
}

.cookie-link {
    color: #fff;
    text-decoration: underline;
}

/* Navigation */
.navbar {
    background-color: #fff;
    border-bottom: 1px solid #e0e0e0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 600;
    color: #2c5f7c;
    text-decoration: none;
    transition: transform 0.3s;
}

.nav-brand:hover {
    transform: scale(1.05);
}

.infinity-symbol {
    font-size: 28px;
    color: #d9534f;
}

.language-switch {
    position: relative;
}

.language-switch select {
    background: #fff;
    border: 2px solid #e0e0e0;
    padding: 8px 12px;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    border-radius: 4px;
    transition: all 0.3s;
}

.language-switch select:hover {
    border-color: #2c5f7c;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: #333;
    font-weight: 400;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #2c5f7c;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #2c5f7c;
    transition: all 0.3s;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Hero Section */
.hero {
    background-color: #fff;
    padding: 80px 0;
}

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

.hero h1 {
    font-size: 48px;
    font-weight: 600;
    color: #2c5f7c;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 24px;
    color: #d9534f;
    font-weight: 500;
    margin-bottom: 25px;
}

.hero-text {
    font-size: 16px;
    color: #555;
    line-height: 1.8;
}

.hero-spiral {
    display: flex;
    justify-content: center;
    align-items: center;
}

.spiral-image {
    width: 100%;
    max-width: 400px;
    height: auto;
}

/* Quote Section */
.quote-section {
    background-color: #2c5f7c;
    padding: 60px 0;
    color: #fff;
}

.main-quote {
    font-size: 22px;
    font-weight: 300;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

.main-quote cite {
    display: block;
    margin-top: 20px;
    font-size: 18px;
    font-style: normal;
    font-weight: 500;
}

/* Paradigma Section */
.paradigma-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.paradigma-section h2 {
    font-size: 36px;
    font-weight: 600;
    color: #2c5f7c;
    text-align: center;
    margin-bottom: 20px;
}

.section-intro {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 50px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.paradigma-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.paradigma-card {
    background-color: #fff;
    padding: 40px 30px;
    text-align: center;
    border: 1px solid #e0e0e0;
    text-decoration: none;
    color: inherit;
    transition: transform 0.3s, box-shadow 0.3s;
}

a.paradigma-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-icon {
    height: 60px;
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.card-icon img {
    height: 100%;
    width: auto;
}

.paradigma-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.paradigma-card p {
    font-size: 16px;
    color: #666;
    margin-bottom: 8px;
}

.paradigma-card .subtitle {
    font-size: 14px;
    color: #999;
}

.center-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background-color: transparent;
    border: none;
}

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

.infinity-large {
    font-size: 72px;
    color: #d9534f;
    margin-bottom: 15px;
    display: block;
}

.center-text {
    font-size: 16px;
    font-weight: 500;
    color: #2c5f7c;
    line-height: 1.4;
}

/* Model Preview Section */
.model-preview {
    padding: 60px 0;
    background-color: #fff;
}

.model-image-container {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.model-overview {
    width: 100%;
    height: auto;
    border: 1px solid #e0e0e0;
}

.image-caption {
    margin-top: 20px;
    font-size: 14px;
    color: #666;
    font-style: italic;
}

/* Navigation Cards */
.nav-cards {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.nav-cards h2 {
    font-size: 36px;
    font-weight: 600;
    color: #2c5f7c;
    text-align: center;
    margin-bottom: 50px;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.cards-grid.three-cards {
    max-width: 1100px;
    margin: 0 auto;
}

.nav-card {
    background-color: #fff;
    border: 1px solid #e0e0e0;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, box-shadow 0.3s;
}

.nav-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card-header {
    background-color: #2c5f7c;
    color: #fff;
    padding: 20px;
    font-size: 20px;
    font-weight: 600;
}

.card-body {
    padding: 25px 20px;
    flex-grow: 1;
}

.card-body p {
    font-size: 15px;
    line-height: 1.6;
    color: #666;
}

.card-footer {
    padding: 15px 20px;
    color: #2c5f7c;
    font-weight: 500;
    border-top: 1px solid #e0e0e0;
}

/* Research Section */
.research-section {
    padding: 80px 0;
    background-color: #fff;
}

.research-section h2 {
    font-size: 36px;
    font-weight: 600;
    color: #2c5f7c;
    text-align: center;
    margin-bottom: 20px;
}

.research-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.stat-card {
    background-color: #f8f9fa;
    padding: 40px 20px;
    text-align: center;
    border: 1px solid #e0e0e0;
}

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: #d9534f;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.stat-desc {
    font-size: 14px;
    color: #999;
}

/* Schuchardt Info Section */
.schuchardt-info {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.schuchardt-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.schuchardt-content h2 {
    font-size: 32px;
    font-weight: 600;
    color: #2c5f7c;
    margin-bottom: 15px;
}

.schuchardt-content p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 20px;
}

.schuchardt-content .cta-button {
    display: inline-block;
    padding: 15px 40px;
    background-color: #2c5f7c;
    color: #fff;
    text-decoration: none;
    font-weight: 600;
    margin-top: 20px;
    transition: background-color 0.3s;
}

.schuchardt-content .cta-button:hover {
    background-color: #1e4158;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background-color: #d9534f;
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    font-size: 36px;
    font-weight: 600;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 18px;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background-color: #fff;
    color: #d9534f;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: background-color 0.3s, color 0.3s;
}

.cta-button:hover {
    background-color: #2c5f7c;
    color: #fff;
}

/* Footer */
.footer {
    background-color: #2c3e50;
    color: #fff;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #fff;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: #d9534f;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .paradigma-grid {
        grid-template-columns: 1fr;
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .research-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .language-switch {
        position: static;
        margin-left: auto;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        gap: 0;
        padding: 0;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .nav-menu.active {
        max-height: 500px;
    }
    
    .nav-menu li {
        border-bottom: 1px solid #e0e0e0;
    }
    
    .nav-menu a {
        display: block;
        padding: 15px 20px;
    }
}

@media (max-width: 640px) {
    .hero h1 {
        font-size: 36px;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
    }
    
    .research-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .cookie-banner .container {
        flex-direction: column;
        text-align: center;
    }
}