:root {
    /* Цветовая палитра */
    --emerald: #0b4d42;
    --emerald-light: #157363;
    --emerald-dark: #07332c;
    --anthracite: #1a1c20;
    --anthracite-light: #2a2d34;
    --white: #ffffff;
    --off-white: #f5f7fa;
    --gold: #d4af37;
    --text-gray: #a0a5b1;
    --glass-bg: rgba(26, 28, 32, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);

    /* Шрифты */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;

    /* Другие переменные */
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--anthracite);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Типографика */
h1, h2, h3, h4, .hero-title, .section-title {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
}

.text-center { text-align: center; }
.w-100 { width: 100%; }

/* Контейнер */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background-color: var(--emerald);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(11, 77, 66, 0.4);
}

.btn-primary:hover {
    background-color: var(--emerald-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(21, 115, 99, 0.5);
}

.btn-primary:disabled {
    background-color: #555;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.btn-outline {
    background-color: transparent;
    color: var(--white);
    border: 1px solid var(--emerald-light);
}

.btn-outline:hover {
    background-color: var(--emerald);
    border-color: var(--emerald);
}

.btn-secondary {
    background-color: var(--anthracite-light);
    color: var(--white);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--emerald);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(26, 28, 32, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
    text-decoration: none;
}

.logo img {
    height: 80px;
    width: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.nav a:not(.btn):hover {
    color: var(--gold);
}

.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.burger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: var(--white);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    padding-top: 140px;
    padding-bottom: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg-glow {
    position: absolute;
    top: 20%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(11,77,66,0.4) 0%, rgba(26,28,32,0) 70%);
    z-index: -1;
    border-radius: 50%;
    filter: blur(40px);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 40px;
    max-width: 90%;
}

.hero-image {
    position: relative;
}

.hero-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    filter: grayscale(20%) contrast(1.1);
    display: block;
    margin: 0 auto;
}

/* Sections Global */
section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    color: var(--white);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 48px;
}

/* Test Section (Quiz) */
.test-section {
    background-color: var(--anthracite-light);
}

.test-header {
    text-align: center;
}

.quiz-wrapper {
    background: var(--anthracite);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.quiz-progress {
    width: 100%;
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    margin-bottom: 30px;
    overflow: hidden;
}

.quiz-progress-bar {
    height: 100%;
    background: var(--gold);
    width: 33%;
    transition: width 0.3s ease;
}

.quiz-slide {
    display: none;
    animation: fadeIn 0.5s ease;
}

.quiz-slide.active {
    display: block;
}

.quiz-slide h3 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.quiz-hint {
    color: var(--text-gray);
    margin-bottom: 20px;
    font-style: italic;
}

.quiz-options {
    display: grid;
    gap: 16px;
    margin-bottom: 30px;
}

.images-options {
    grid-template-columns: 1fr 1fr;
}

.images-options .quiz-option img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    transition: var(--transition);
    cursor: pointer;
}

.quiz-option input[type="radio"] {
    display: none;
}

.images-options .quiz-option input:checked + img {
    border-color: var(--gold);
    transform: scale(0.98);
}

.text-options {
    grid-template-columns: 1fr;
}

.text-card {
    background: var(--anthracite-light);
    border: 1px solid var(--glass-border);
    padding: 20px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
}

.text-card:hover {
    background: rgba(255,255,255,0.05);
}

.text-card input:checked + span {
    color: var(--gold);
}

.text-card:has(input:checked) {
    border-color: var(--gold);
    background: rgba(212, 175, 55, 0.1);
}

.lead-magnet-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--emerald-dark);
    padding: 20px;
    border-radius: var(--radius-md);
    margin: 20px 0;
    border: 1px solid var(--emerald);
}

.lead-magnet-icon {
    font-size: 2.5rem;
}

.lead-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.lead-form input {
    width: 100%;
    padding: 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    background: var(--anthracite-light);
    color: var(--white);
    font-family: var(--font-body);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.lead-form input:focus {
    border-color: var(--emerald);
}

/* Trust Section */
.trust-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.trust-text {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 30px;
}

.media-logos {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.media-logo {
    padding: 10px 20px;
    background: rgba(255,255,255,0.05);
    border-radius: var(--radius-sm);
    font-family: var(--font-heading);
    color: var(--white);
    letter-spacing: 1px;
}

.diplomas-gallery {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.diploma-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 24px;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
    transition: var(--transition);
}

.diploma-card:hover {
    transform: translateX(10px);
    border-color: var(--emerald-light);
}

.diploma-icon {
    font-size: 2rem;
    margin-bottom: 10px;
}

.diploma-card h4 {
    font-size: 1.2rem;
    color: var(--gold);
}

/* Audience */
.audience-section {
    background-color: var(--anthracite-light);
}

.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.audience-card {
    background: var(--anthracite);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.audience-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
    border-color: var(--emerald);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.audience-card h3 {
    margin-bottom: 16px;
    font-size: 1.5rem;
}

.audience-card p {
    color: var(--text-gray);
}

.quote-block {
    background: linear-gradient(135deg, var(--emerald-dark) 0%, var(--anthracite) 100%);
    padding: 50px;
    border-radius: var(--radius-lg);
    text-align: center;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-style: italic;
    border: 1px solid var(--emerald);
}

.quote-block cite {
    display: block;
    margin-top: 20px;
    font-size: 1.2rem;
    color: var(--gold);
    font-style: normal;
    font-family: var(--font-body);
}

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

.product-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}

.product-card:hover {
    border-color: var(--gold);
}

.product-badge {
    align-self: flex-start;
    background: rgba(212, 175, 55, 0.2);
    color: var(--gold);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-bottom: 20px;
}

.product-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.product-card p {
    color: var(--text-gray);
    flex-grow: 1;
    margin-bottom: 24px;
}

.product-price {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--white);
}

/* Course Tariffs */
.course-section {
    background-color: var(--anthracite-light);
    position: relative;
}

.tariffs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
    margin-bottom: 60px;
}

.tariff-card {
    background: var(--anthracite);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
}

.tariff-card.premium {
    border-color: var(--emerald);
    transform: scale(1.05);
    background: linear-gradient(180deg, var(--emerald-dark) 0%, var(--anthracite) 100%);
    box-shadow: 0 20px 40px rgba(11, 77, 66, 0.3);
    z-index: 2;
}

.premium-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gold);
    color: var(--anthracite);
    padding: 5px 20px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.tariff-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--glass-border);
}

.tariff-header h3 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.tariff-price {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--gold);
}

.tariff-features {
    list-style: none;
    flex-grow: 1;
    margin-bottom: 30px;
}

.tariff-features li {
    margin-bottom: 16px;
    position: relative;
    padding-left: 30px;
    color: var(--text-gray);
}

.tariff-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--emerald-light);
    font-weight: bold;
}

.bonus-banner {
    background: var(--anthracite);
    border: 1px dashed var(--gold);
    border-radius: var(--radius-md);
    padding: 30px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.bonus-icon {
    font-size: 3rem;
}

.bonus-content h4 {
    color: var(--gold);
    font-size: 1.2rem;
    margin-bottom: 8px;
}

/* Footer */
.footer {
    background-color: #111;
    padding: 60px 0 20px;
    border-top: 1px solid var(--glass-border);
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-info p {
    color: var(--text-gray);
    margin-top: 16px;
}

.footer-contacts {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contacts h4 {
    margin-bottom: 10px;
    color: var(--white);
}

.footer-contacts a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

.footer-contacts a:hover {
    color: var(--emerald-light);
}

.footer-bottom {
    text-align: center;
    color: var(--text-gray);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
    padding-top: 20px;
}

/* Анимации Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Мобильная адаптивность */
@media (max-width: 992px) {
    .hero-container, .trust-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title { font-size: 2.8rem; }
    
    .tariffs-grid {
        grid-template-columns: 1fr;
    }
    
    .tariff-card.premium {
        transform: none;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .burger { display: flex; }
    
    .nav {
        position: absolute;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background: var(--anthracite);
        width: 100%;
        padding: 30px 20px;
        transition: 0.3s;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav a {
        font-size: 1.2rem;
        width: 100%;
        text-align: center;
    }
    
    .hero { padding-top: 120px; }
    .hero-title { font-size: 2.2rem; }
    
    .quiz-wrapper { padding: 20px; }
    
    .images-options { grid-template-columns: 1fr; }
    
    .quote-block { font-size: 1.4rem; padding: 30px 20px; }
}

/* Lightbox для дипломов */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    border-radius: var(--radius-sm);
    box-shadow: 0 0 30px rgba(0,0,0,0.8);
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.lightbox.active .lightbox-content {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: var(--white);
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.lightbox-close:hover {
    color: var(--gold);
}