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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background-color: #ffffff;
}

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

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #2c3e50;
    color: #ffffff;
    padding: 20px;
    z-index: 10000;
    display: none;
}

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

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.cookie-content p {
    flex: 1;
    margin: 0;
    min-width: 300px;
}

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

.cookie-buttons button {
    padding: 10px 24px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #3498db;
    color: #ffffff;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border: 1px solid #ffffff;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.main-nav {
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-brand {
    font-size: 24px;
    font-weight: 700;
    color: #2c3e50;
}

.nav-ad-notice {
    font-size: 12px;
    color: #7f8c8d;
    font-style: italic;
    padding: 4px 12px;
    background-color: #ecf0f1;
    border-radius: 4px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #3498db;
}

.hero-section {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-overlay img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.5);
}

.hero-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.8), rgba(142, 68, 173, 0.6));
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    color: #ffffff;
    max-width: 800px;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    line-height: 1.5;
}

.cta-button {
    display: inline-block;
    padding: 16px 40px;
    background-color: #e74c3c;
    color: #ffffff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

.intro-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.intro-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.intro-card {
    flex: 1;
    min-width: 280px;
    background-color: #ffffff;
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

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

.card-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.intro-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #2c3e50;
}

.intro-card p {
    color: #7f8c8d;
    line-height: 1.7;
}

.courses-section {
    padding: 100px 0;
    background-color: #ffffff;
}

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

.section-header h2 {
    font-size: 36px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.section-header p {
    font-size: 18px;
    color: #7f8c8d;
}

.courses-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.course-card {
    flex: 1 1 calc(33.333% - 20px);
    min-width: 320px;
    background-color: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.course-card.selected {
    border: 3px solid #3498db;
}

.course-image {
    width: 100%;
    height: 240px;
    overflow: hidden;
    background-color: #ecf0f1;
}

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

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

.course-content {
    padding: 30px;
}

.course-content h3 {
    font-size: 22px;
    color: #2c3e50;
    margin-bottom: 15px;
}

.course-content p {
    color: #7f8c8d;
    margin-bottom: 20px;
    line-height: 1.7;
}

.course-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.course-features span {
    padding: 6px 14px;
    background-color: #ecf0f1;
    border-radius: 20px;
    font-size: 13px;
    color: #2c3e50;
}

.course-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #ecf0f1;
}

.course-price {
    font-size: 26px;
    font-weight: 700;
    color: #e74c3c;
}

.btn-select-course {
    padding: 12px 24px;
    background-color: #3498db;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-select-course:hover {
    background-color: #2980b9;
}

.form-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background-color: #ffffff;
    border-radius: 12px;
    padding: 50px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.form-intro {
    text-align: center;
    margin-bottom: 40px;
}

.form-intro h2 {
    font-size: 32px;
    color: #2c3e50;
    margin-bottom: 10px;
}

.form-intro p {
    color: #7f8c8d;
    font-size: 16px;
}

.course-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 8px;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px;
    border: 2px solid #ecf0f1;
    border-radius: 6px;
    font-size: 15px;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.btn-submit {
    padding: 16px;
    background-color: #e74c3c;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-submit:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
}

.testimonials-section {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.testimonials-section h2 {
    text-align: center;
    font-size: 36px;
    color: #2c3e50;
    margin-bottom: 60px;
}

.testimonials-grid {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.testimonial-card {
    flex: 1;
    min-width: 300px;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.testimonial-text {
    font-size: 16px;
    line-height: 1.8;
    color: #2c3e50;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
}

.testimonial-author strong {
    color: #2c3e50;
    margin-bottom: 5px;
}

.testimonial-author span {
    color: #7f8c8d;
    font-size: 14px;
}

.cta-bottom-section {
    padding: 100px 0;
    background-color: #2c3e50;
    color: #ffffff;
    text-align: center;
}

.cta-bottom-content h2 {
    font-size: 38px;
    margin-bottom: 20px;
}

.cta-bottom-content p {
    font-size: 18px;
    margin-bottom: 35px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button-large {
    display: inline-block;
    padding: 18px 50px;
    background-color: #e74c3c;
    color: #ffffff;
    text-decoration: none;
    border-radius: 6px;
    font-size: 20px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-button-large:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(231, 76, 60, 0.4);
}

.main-footer {
    background-color: #1a252f;
    color: #ecf0f1;
    padding: 60px 0 20px;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.footer-col {
    flex: 1;
    min-width: 220px;
}

.footer-col h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #ffffff;
}

.footer-col p {
    color: #95a5a6;
    line-height: 1.7;
}

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

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: #95a5a6;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: #3498db;
}

.footer-disclaimer {
    background-color: #151e27;
    padding: 25px;
    border-radius: 6px;
    margin-bottom: 30px;
}

.footer-disclaimer p {
    color: #95a5a6;
    font-size: 14px;
    line-height: 1.7;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #2c3e50;
}

.footer-bottom p {
    color: #95a5a6;
    font-size: 14px;
}

@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        gap: 15px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .intro-grid {
        flex-direction: column;
    }

    .course-card {
        flex: 1 1 100%;
    }

    .form-wrapper {
        padding: 30px;
    }

    .testimonials-grid {
        flex-direction: column;
    }
}