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

:root {
    --purple: #6B46C1;
    --purple-dark: #553C9A;
    --purple-light: #9F7AEA;
    --yellow: #F6E05E;
    --yellow-dark: #ECC94B;
    --white: #FFFFFF;
    --gray-dark: #2D3748;
    --gray: #4A5568;
    --gray-light: #E2E8F0;
    --gray-bg: #F7FAFC;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--gray-dark);
}

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

.nav {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--purple);
    text-decoration: none;
}

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

.nav-menu a {
    color: var(--gray-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--gray-dark);
    border-radius: 3px;
    transition: 0.3s;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--purple-dark);
}

.btn-nav {
    background: var(--yellow);
    color: var(--gray-dark);
    padding: 10px 20px;
}

.btn-nav:hover {
    background: var(--yellow-dark);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.hero {
    background: linear-gradient(135deg, var(--purple) 0%, var(--purple-dark) 100%);
    padding: 140px 20px 80px;
    color: var(--white);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero h1 {
    font-size: 2.75rem;
    line-height: 1.2;
    margin-bottom: 24px;
}

.hero-list {
    list-style: none;
    margin-bottom: 32px;
}

.hero-list li {
    padding: 8px 0;
    padding-left: 28px;
    position: relative;
}

.hero-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--yellow);
    font-weight: bold;
}

.hero-image img {
    width: 100%;
    max-width: 500px;
    border-radius: 12px;
}

.section {
    padding: 80px 20px;
}

.section-alt {
    background: var(--gray-bg);
}

.section h2 {
    font-size: 2rem;
    color: var(--purple);
    text-align: center;
    margin-bottom: 48px;
}

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

.text-content p {
    margin-bottom: 20px;
    color: var(--gray);
    font-size: 1.1rem;
}

.cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.card {
    background: var(--white);
    padding: 32px 24px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

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

.kurs-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.kurs-blocks {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.kurs-block {
    background: var(--white);
    padding: 24px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.kurs-number {
    width: 48px;
    height: 48px;
    background: var(--purple);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
    flex-shrink: 0;
}

.kurs-block h3 {
    font-size: 1.1rem;
    color: var(--gray-dark);
}

.kurs-image img {
    width: 100%;
    max-width: 450px;
    border-radius: 12px;
}

.benefits-list {
    max-width: 700px;
    margin: 0 auto;
    list-style: none;
}

.benefits-list li {
    padding: 16px 0;
    padding-left: 40px;
    position: relative;
    font-size: 1.1rem;
    color: var(--gray);
    border-bottom: 1px solid var(--gray-light);
}

.benefits-list li:last-child {
    border-bottom: none;
}

.benefits-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--purple);
    font-size: 1.5rem;
    font-weight: bold;
}

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

.faq-item {
    background: var(--white);
    border-radius: 8px;
    margin-bottom: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-dark);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s;
}

.faq-question::after {
    content: "+";
    font-size: 1.5rem;
    color: var(--purple);
    transition: transform 0.3s;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

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

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

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 24px 20px;
}

.faq-answer p {
    color: var(--gray);
}

.cta {
    background: linear-gradient(135deg, var(--purple) 0%, var(--purple-dark) 100%);
    padding: 80px 20px;
    text-align: center;
    color: var(--white);
}

.cta h2 {
    color: var(--white);
    margin-bottom: 32px;
    font-size: 1.75rem;
}

.footer {
    background: var(--gray-dark);
    color: var(--white);
    padding: 40px 20px;
    text-align: center;
}

.footer p {
    margin-bottom: 16px;
    opacity: 0.9;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 24px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 1;
}

@media (max-width: 992px) {
    .cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .kurs-container {
        grid-template-columns: 1fr;
    }
    
    .kurs-image {
        order: -1;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .btn-nav {
        display: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-list {
        text-align: left;
        max-width: 400px;
        margin: 0 auto 32px;
    }
    
    .hero-image {
        order: -1;
    }
    
    .cards {
        grid-template-columns: 1fr;
    }
    
    .section h2 {
        font-size: 1.5rem;
    }
}