/* ============================================
   DEUTSCHLERNENPRO - Vibrant Global Learning Design
   ============================================ */

/* CSS Variables */
:root {
    --primary: #FF6B35;
    --primary-dark: #E85A2A;
    --secondary: #00CED1;
    --accent: #FFD700;
    --success: #2ECC71;
    --purple: #9B59B6;
    --blue: #3498DB;
    --red: #E74C3C;
    --dark: #1a1a2e;
    --darker: #0f0f1a;
    --light: #f8f9fa;
    --white: #ffffff;
    --gray: #6c757d;
    --gradient-primary: linear-gradient(135deg, #FF6B35 0%, #FF8E53 100%);
    --gradient-secondary: linear-gradient(135deg, #00CED1 0%, #20B2AA 100%);
    --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-gold: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-ocean: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-sunset: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
    --border-radius: 16px;
    --border-radius-lg: 24px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Fredoka One', cursive;
    font-weight: 400;
    line-height: 1.3;
}

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

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

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

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

/* Utility Classes */
.highlight-text {
    color: var(--primary);
}

.highlight-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Cookie Banner */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--dark);
    color: var(--white);
    padding: 20px;
    z-index: 9999;
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.5s ease;
}

.cookie-banner.hidden {
    animation: slideDown 0.5s ease forwards;
}

@keyframes slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

@keyframes slideDown {
    from { transform: translateY(0); }
    to { transform: translateY(100%); }
}

.cookie-content h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--accent);
}

.cookie-content p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 15px;
}

.cookie-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-cookie {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.btn-accept {
    background: var(--success);
    color: var(--white);
}

.btn-decline {
    background: var(--gray);
    color: var(--white);
}

.btn-more {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-cookie:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Header */
.header {
    position: relative;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    overflow: hidden;
}

.header-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 107, 53, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 206, 209, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(155, 89, 182, 0.2) 0%, transparent 70%);
    z-index: 0;
}

.nav {
    position: relative;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

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

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

.logo-text {
    font-family: 'Fredoka One', cursive;
    font-size: 1.8rem;
    color: var(--white);
}

.logo-highlight {
    color: var(--accent);
}

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

.nav-links a {
    color: var(--white);
    font-weight: 600;
    opacity: 0.8;
    transition: var(--transition);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    opacity: 1;
    color: var(--accent);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--white);
    cursor: pointer;
}

/* Hero */
.hero {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 40px 80px;
}

.hero-content {
    color: var(--white);
}

.hero-badge {
    display: inline-block;
    background: var(--gradient-primary);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
    padding: 15px 25px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.stat-number {
    display: block;
    font-family: 'Fredoka One', cursive;
    font-size: 2rem;
    color: var(--accent);
}

.stat-label {
    font-size: 0.85rem;
    opacity: 0.8;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 15px 35px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 107, 53, 0.5);
    color: var(--white);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.2rem;
}

.btn-icon {
    font-size: 1.3rem;
}

.hero-guarantee {
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero-image {
    position: relative;
}

.hero-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero-image::before {
    content: '';
    position: absolute;
    top: -30px;
    right: -30px;
    width: 150px;
    height: 150px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    z-index: -1;
    opacity: 0.5;
}

/* Flags Section */
.flags-section {
    padding: 60px 0;
    background: var(--light);
}

.flags-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
}

.flag-item {
    height: 100px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 10px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--white);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.flag-item:hover {
    transform: scale(1.1) rotate(5deg);
    z-index: 10;
}

.flag-item span {
    position: relative;
    z-index: 2;
}

/* Benefits Section */
.benefits-section {
    padding: 100px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-block;
    background: var(--gradient-secondary);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.section-header h2 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

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

.benefit-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 2px solid transparent;
}

.benefit-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

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

/* Review Section */
.review-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    position: relative;
    overflow: hidden;
}

.review-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 90%, rgba(255, 107, 53, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(0, 206, 209, 0.2) 0%, transparent 40%);
}

.review-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    color: var(--white);
}

.review-badge {
    display: inline-block;
    background: var(--accent);
    color: var(--dark);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.review-content h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
}

.review-rating {
    margin-bottom: 40px;
}

.rating-stars {
    font-size: 2rem;
    margin-bottom: 10px;
}

.rating-score {
    font-family: 'Fredoka One', cursive;
    font-size: 2rem;
    color: var(--accent);
}

.rating-count {
    display: block;
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 5px;
}

.review-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    text-align: left;
    margin-bottom: 40px;
}

.review-pros,
.review-cons {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.review-pros h4,
.review-cons h4 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.review-pros h4 {
    color: var(--success);
}

.review-cons h4 {
    color: var(--accent);
}

.review-pros ul,
.review-cons ul {
    list-style: none;
}

.review-pros li,
.review-cons li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    font-size: 0.95rem;
}

.review-pros li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
}

.review-cons li::before {
    content: '○';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.review-verdict {
    background: rgba(255, 255, 255, 0.1);
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 40px;
    text-align: left;
}

.review-verdict h4 {
    color: var(--accent);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.review-price {
    background: rgba(255, 215, 0, 0.1);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 2px solid var(--accent);
}

.price-tag {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.price-label {
    font-size: 1rem;
}

.price-original {
    font-size: 1.5rem;
    text-decoration: line-through;
    opacity: 0.6;
}

.price-sale {
    font-family: 'Fredoka One', cursive;
    font-size: 2.5rem;
    color: var(--accent);
}

.price-save {
    background: var(--red);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
}

.price-guarantee {
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Testimonials */
.testimonials-section {
    padding: 100px 0;
    background: var(--light);
}

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

.testimonial-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-content {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 25px;
    color: var(--dark);
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

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

.testimonial-author strong {
    display: block;
    color: var(--dark);
}

.testimonial-author span {
    font-size: 0.9rem;
    color: var(--gray);
}

/* FAQ Section */
.faq-section {
    padding: 100px 0;
    background: var(--white);
}

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

.faq-item {
    background: var(--light);
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px 30px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--primary);
    transition: var(--transition);
}

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

.faq-answer p {
    padding: 0 30px 20px;
    color: var(--gray);
    line-height: 1.8;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: var(--gradient-hero);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 70%, rgba(255, 107, 53, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(155, 89, 182, 0.3) 0%, transparent 50%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.cta-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    margin-bottom: 30px;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.cta-features span {
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--darker);
    color: var(--white);
}

.footer-main {
    padding: 80px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 50px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    font-size: 1.5rem;
}

.footer-brand p {
    opacity: 0.7;
    line-height: 1.8;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: var(--transition);
}

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

.footer-links h4,
.footer-contact h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent);
}

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

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

.footer-links a {
    color: var(--white);
    opacity: 0.7;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent);
}

.footer-contact p {
    opacity: 0.7;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.footer-bottom {
    background: rgba(0, 0, 0, 0.3);
    padding: 30px 0;
    text-align: center;
}

.footer-bottom p {
    opacity: 0.6;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        padding: 20px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-image {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .flags-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .review-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .cta-features {
        flex-direction: column;
        gap: 10px;
    }
    
    .cookie-buttons {
        flex-direction: column;
    }
    
    .btn-cookie {
        width: 100%;
    }
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-10px); }
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--dark);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
}