/* Deutsche Online Akademie - Main Stylesheet */

/* Google Fonts - Poppins */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap');

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

:root {
    --primary-green: #28a745;
    --primary-blue: #007bff;
    --dark-green: #1e7e34;
    --dark-blue: #0056b3;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #6c757d;
    --text-dark: #212529;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 6px 12px rgba(0, 0, 0, 0.15);
}

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

.light-text {
    font-weight: 300;
}

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: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

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

a {
    color: var(--primary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--dark-blue);
}

/* Disclaimer Banner */
.disclaimer-banner {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: var(--white);
    padding: 15px 20px;
    text-align: center;
    font-size: 0.9rem;
    line-height: 1.5;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

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

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header.scrolled {
    box-shadow: var(--shadow-hover);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-green);
    margin: 0;
}

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

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.burger {
    display: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    background-size: cover;
    background-position: center;
    background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://images.unsplash.com/photo-1522202176988-66273c2fd55f?ixlib=rb-4.0.3&q=85&fm=jpg&crop=entropy&cs=srgb&w=1600');
}

.hero-content {
    max-width: 800px;
    padding: 2rem;
    z-index: 1;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    font-weight: 300;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

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

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Container & Sections */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

section {
    padding: 4rem 0;
}

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

.section-title h2 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.section-title p {
    color: var(--dark-gray);
    font-size: 1.1rem;
}

.bg-light {
    background-color: var(--light-gray);
}

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

.card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    text-align: center;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

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

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

.card p {
    color: var(--dark-gray);
    line-height: 1.7;
}

/* Team Cards */
.team-member {
    text-align: center;
}

.team-member img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 1rem;
}

.team-member h4 {
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.team-member p {
    color: var(--dark-gray);
}

/* Gallery */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.gallery-item {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    height: 250px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

/* Statistics */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
    padding: 3rem 0;
}

.stat-item h3 {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.1rem;
    color: var(--dark-gray);
}

/* Course Categories */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.course-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

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

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

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

.course-card ul {
    list-style-position: inside;
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
}

/* Blog */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.blog-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.blog-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

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

.blog-meta {
    display: flex;
    gap: 1rem;
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-card h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.blog-card p {
    color: var(--dark-gray);
    margin-bottom: 1rem;
    line-height: 1.7;
}

/* Blog Article */
.article-hero {
    height: 400px;
    background-size: cover;
    background-position: center;
    border-radius: 12px;
    margin-bottom: 2rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 5%;
}

.article-header {
    margin-bottom: 2rem;
    text-align: center;
}

.article-header h1 {
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1.1rem;
}

.article-content h2 {
    color: var(--primary-blue);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.article-content ul, .article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 2rem;
}

.article-content li {
    margin-bottom: 0.5rem;
    line-height: 1.7;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--light-gray);
    border-radius: 12px;
    margin-top: 3rem;
}

.author-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.author-details h4 {
    margin-bottom: 0.25rem;
}

.author-details p {
    color: var(--dark-gray);
    font-size: 0.9rem;
    margin: 0;
}

/* Contact Form */
.contact-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    align-items: start;
}

.contact-info {
    background-color: var(--light-gray);
    padding: 2rem;
    border-radius: 12px;
}

.contact-item {
    display: flex;
    align-items: start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-green);
    margin-top: 0.25rem;
}

.contact-item div h4 {
    margin-bottom: 0.5rem;
}

.contact-item div p {
    color: var(--dark-gray);
    margin: 0;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background-color: var(--primary-green);
    color: var(--white);
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--dark-green);
    transform: translateY(-3px);
}

.contact-form {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

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

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--medium-gray);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
}

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

.form-group.error input,
.form-group.error textarea {
    border-color: #dc3545;
}

.error-message {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.error .error-message {
    display: block;
}

.map-container {
    margin-top: 3rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-container iframe {
    width: 100%;
    height: 400px;
    border: none;
}

/* FAQ */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background-color: var(--white);
    border-radius: 12px;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 1.5rem;
    background-color: var(--white);
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

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

.faq-question i {
    color: var(--primary-green);
    transition: transform 0.3s ease;
}

.faq-question.active i {
    transform: rotate(180deg);
}

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

.faq-answer.active {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem;
}

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

/* Privacy & Terms */
.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 5%;
}

.legal-content h2 {
    color: var(--primary-green);
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.legal-content h3 {
    color: var(--primary-blue);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

.legal-content p,
.legal-content li {
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-content ul {
    padding-left: 2rem;
}

/* Footer */
footer {
    background-color: #212529;
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    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: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

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

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

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(33, 37, 41, 0.98);
    color: var(--white);
    padding: 1.5rem;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    z-index: 2000;
    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-content p {
    margin: 0;
    flex: 1;
}

.cookie-content a {
    color: var(--primary-green);
}

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

/* Responsive Design */
@media screen and (max-width: 768px) {
    /* Navigation */
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: right 0.3s ease;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 0;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        padding: 1rem 0;
    }

    .burger {
        display: flex;
    }

    .burger.active div:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .burger.active div:nth-child(2) {
        opacity: 0;
    }

    .burger.active div:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* Hero */
    .hero {
        height: 500px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    /* Typography */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }

    /* Cards */
    .cards {
        grid-template-columns: 1fr;
    }

    .course-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    /* Contact */
    .contact-container {
        grid-template-columns: 1fr;
    }

    /* Cookie Banner */
    .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-buttons {
        flex-direction: column;
        width: 100%;
    }

    .cookie-buttons .btn {
        width: 100%;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
    /* Tablet Layout */
    .cards {
        grid-template-columns: repeat(2, 1fr);
    }

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

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.py-1 { padding-top: 1rem; padding-bottom: 1rem; }
.py-2 { padding-top: 2rem; padding-bottom: 2rem; }
.py-3 { padding-top: 3rem; padding-bottom: 3rem; }