/* ==========================================
   DeutschAkademie Online - Main Stylesheet
   Modern, Clean European Design
   ========================================== */

:root {
    --primary-green: #2ecc71;
    --primary-dark-green: #27ae60;
    --secondary-gray: #34495e;
    --light-gray: #ecf0f1;
    --dark-gray: #2c3e50;
    --white: #ffffff;
    --text-color: #333333;
    --border-radius: 12px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    font-weight: 400;
    color: var(--text-color);
    background-color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    font-weight: 300;
}

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

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-green);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-weight: 400;
    color: var(--secondary-gray);
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--secondary-gray);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #2ecc71 0%, #27ae60 100%);
    color: var(--white);
    padding: 5rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    font-weight: 300;
    animation: fadeInUp 0.8s ease 0.2s;
    animation-fill-mode: both;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 2rem;
    background-color: var(--primary-green);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
}

.btn:hover {
    background-color: var(--primary-dark-green);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(46, 204, 113, 0.3);
}

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

.btn-white:hover {
    background-color: var(--light-gray);
    color: var(--primary-dark-green);
}

/* Container & Sections */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

section {
    margin-bottom: 4rem;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title h2 {
    color: var(--dark-gray);
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--primary-green);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.card-icon {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.card h3 {
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

.card p {
    color: var(--secondary-gray);
    font-size: 0.95rem;
}

/* Features Section */
.features {
    background-color: var(--light-gray);
    padding: 4rem 2rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

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

.feature-icon {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    color: var(--white);
    text-align: center;
    padding: 4rem 2rem;
    margin: 4rem 0;
}

.cta-section h2 {
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

/* Disclaimer Banner */
.disclaimer-banner {
    background-color: #e74c3c;
    color: var(--white);
    padding: 1.5rem 2rem;
    text-align: center;
    font-weight: 400;
    font-size: 0.9rem;
    line-height: 1.5;
}

.disclaimer-banner strong {
    font-weight: 600;
}

/* Blog List */
.blog-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.blog-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.blog-card-content {
    padding: 1.5rem;
}

.blog-card-date {
    color: var(--primary-green);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.blog-card h3 {
    margin-bottom: 0.5rem;
}

.blog-card p {
    color: var(--secondary-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Blog Article */
.blog-article {
    max-width: 800px;
    margin: 0 auto;
}

.blog-article-header {
    margin-bottom: 2rem;
}

.blog-article-meta {
    color: var(--secondary-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-article-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
}

.blog-article-content {
    font-size: 1.05rem;
    line-height: 1.8;
}

.blog-article-content h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.blog-article-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
}

.blog-article-content ul,
.blog-article-content ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.blog-article-content li {
    margin-bottom: 0.5rem;
}

/* Contact Form */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: start;
    gap: 1rem;
}

.contact-icon {
    font-size: 1.5rem;
    color: var(--primary-green);
    margin-top: 0.2rem;
}

.contact-form {
    background-color: var(--light-gray);
    padding: 2rem;
    border-radius: var(--border-radius);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-gray);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(46, 204, 113, 0.1);
}

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

.form-error {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 0.3rem;
    display: none;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 1.5rem;
    background-color: var(--white);
    border: none;
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-gray);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--light-gray);
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-green);
    transition: var(--transition);
}

.faq-question.active::after {
    content: '−';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 1.5rem;
}

.faq-answer.active {
    padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--secondary-gray);
    line-height: 1.7;
}

/* Footer */
footer {
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section a {
    color: var(--light-gray);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: var(--primary-green);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: var(--light-gray);
    font-size: 0.85rem;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--dark-gray);
    color: var(--white);
    padding: 1.5rem 2rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    z-index: 9999;
    display: none;
}

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

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.cookie-text {
    flex: 1;
    font-size: 0.9rem;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

/* Team Section */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

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

.team-member-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 1rem;
    border: 4px solid var(--primary-green);
}

.team-member h3 {
    margin-bottom: 0.5rem;
}

.team-member-role {
    color: var(--primary-green);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

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

/* Responsive Design */

/* Tablet (768px - 1024px) */
@media (max-width: 1024px) {
    .container {
        padding: 3rem 1.5rem;
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-section {
        grid-template-columns: 1fr;
    }
}

/* Mobile (max-width: 767px) */
@media (max-width: 767px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    nav {
        padding: 1rem;
    }
    
    .nav-links {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background-color: var(--white);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .container {
        padding: 2rem 1rem;
    }
    
    .cards-grid,
    .blog-list,
    .features-grid,
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .cookie-content {
        flex-direction: column;
        align-items: stretch;
    }
    
    .cookie-buttons {
        flex-direction: column;
    }
    
    .blog-article-image {
        height: 250px;
    }
}

/* Print Styles */
@media print {
    header,
    footer,
    .cookie-banner,
    .cta-section {
        display: none;
    }
}