:root {
    --primary-bg: #1F2235;
    --fuchsia: #F72585;
    --purple: #7209B7;
    --indigo: #3A0CA3;
    --blue: #4CC9F0;
    --text-primary: #FFFFFF;
    --text-secondary: #BDBDBD;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--indigo);
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--purple);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--fuchsia);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    font-weight: bold;
    box-shadow: 0 4px 10px rgba(247, 37, 133, 0.3);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(247, 37, 133, 0.4);
}

/* Header styles */
header {
    padding: 20px 0;
    position: fixed;
    width: 100%;
    z-index: 1000;
    background-color: rgba(31, 34, 53, 0.95);
    backdrop-filter: blur(5px);
    border-bottom: 1px solid rgba(189, 189, 189, 0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-primary);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

.nav-toggle {
    display: none;
}

/* Hero section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, rgba(31, 34, 53, 0.95) 0%, rgba(58, 12, 163, 0.6) 100%);
    padding: 100px 0 50px;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--fuchsia), var(--blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
}

/* Section styles */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-title:after {
    content: '';
    position: absolute;
    width: 80px;
    height: 4px;
    background: var(--purple);
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

/* Courses section */
.courses {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.course-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(114, 9, 183, 0.2);
}

.course-card h3 {
    color: var(--fuchsia);
}

.course-price {
    font-size: 1.8rem;
    font-weight: bold;
    margin: 15px 0;
    color: var(--blue);
}

.course-features {
    list-style: none;
    margin: 20px 0;
    flex-grow: 1;
}

.course-features li {
    margin-bottom: 10px;
    position: relative;
    padding-left: 25px;
}

.course-features li:before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--fuchsia);
}

/* How it works section */
.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.step {
    padding: 20px;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--purple), var(--fuchsia));
    border-radius: 50%;
    font-size: 2rem;
    color: white;
}

/* Testimonials */
.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 30px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.testimonial-content {
    margin-bottom: 20px;
    font-style: italic;
}

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

.testimonial-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

.testimonial-info h4 {
    margin-bottom: 5px;
}

.testimonial-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Form styles */
.form-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
}

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

.checkbox-group {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
}

.checkbox-group input {
    margin-right: 10px;
    margin-top: 5px;
}

.form-group select {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 16px;
}

.form-group select option {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    padding: 10px;
}

/* Why choose us */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature {
    text-align: center;
    padding: 20px;
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--fuchsia);
    margin-bottom: 20px;
}

/* Certificate block */
.certificate {
    background: linear-gradient(135deg, rgba(58, 12, 163, 0.3), rgba(114, 9, 183, 0.3));
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    margin-top: 50px;
}

.certificate h3 {
    color: var(--fuchsia);
}

/* Footer */
footer {
    background: rgba(0, 0, 0, 0.2);
    padding: 60px 0 30px;
    margin-top: 80px;
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-col h3 {
    color: var(--fuchsia);
    margin-bottom: 20px;
    font-size: 1.3rem;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    margin-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Cookie banner */
.cookie-banner {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 400px;
    background: rgba(31, 34, 53, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    z-index: 9999;
}

.cookie-banner p {
    margin-bottom: 15px;
}

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

.btn-cookie {
    flex: 1;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
    text-align: center;
    font-weight: 500;
}

.btn-accept {
    background-color: var(--fuchsia);
    color: white;
    border: none;
}

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

/* Responsive styles */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .nav-toggle {
        display: block;
        background: none;
        border: none;
        color: var(--text-primary);
        font-size: 1.5rem;
        cursor: pointer;
    }
    
    nav ul {
        display: none;
    }
    
    details.mobile-menu {
        display: block;
    }
    
    details.mobile-menu[open] summary ~ * {
        animation: sweep .3s ease-in-out;
    }
    
    @keyframes sweep {
        0%    {opacity: 0; transform: translateY(-10px)}
        100%  {opacity: 1; transform: translateY(0)}
    }
    
    details.mobile-menu summary {
        list-style: none;
    }
    
    details.mobile-menu summary::-webkit-details-marker {
        display: none;
    }
    
    details.mobile-menu nav {
        position: absolute;
        left: 0;
        right: 0;
        top: 70px;
        background-color: var(--primary-bg);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    }
    
    details.mobile-menu nav ul {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    
    details.mobile-menu nav ul li {
        margin-left: 0;
    }
}