/* ========================================
   Вектор ЕГЭ - Онлайн-школа подготовки к ЕГЭ
   Официальный стиль
======================================== */

/* Сброс и базовые стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #1a4d8c;
    --primary-dark: #0d3a6e;
    --primary-light: #2d6cb5;
    --secondary: #e8f0fa;
    --accent: #ff6b35;
    --accent-hover: #ff8555;
    --text: #2c3e50;
    --text-light: #5a6c7d;
    --white: #ffffff;
    --gray-light: #f8f9fa;
    --gray: #e9ecef;
    --shadow: 0 4px 20px rgba(26, 77, 140, 0.1);
    --shadow-hover: 0 8px 30px rgba(26, 77, 140, 0.15);
    --radius: 12px;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text);
    background: var(--white);
}

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

ul {
    list-style: none;
}

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

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

/* Кнопки */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 600;
    text-align: center;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

/* ========================================
   Шапка сайта
======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 35px;
}

.nav-link {
    font-weight: 500;
    color: var(--text);
    position: relative;
}

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

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

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.header-phone {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.phone-number {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.phone-text {
    font-size: 12px;
    color: var(--text-light);
}

/* Мобильное меню */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   Главный экран (Hero)
======================================== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 200%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M54.627 0l.83.828-1.415 1.415L51.8 0h2.827zM5.373 0l-.83.828L5.96 2.243 8.2 0H5.374zM48.97 0l3.657 3.657-1.414 1.414L46.143 0h2.828zM11.03 0L7.372 3.657 8.787 5.07 13.857 0H11.03zm32.284 0L49.8 6.485 48.384 7.9l-7.9-7.9h2.83zM16.686 0L10.2 6.485 11.616 7.9l7.9-7.9h-2.83zM22.344 0L13.858 8.485 15.272 9.9l9.9-9.9h-2.83zM32 0l-3.486 3.485-1.414 1.415L32 0zm-6.343 0L17.172 8.485l1.414 1.415L28.485 0h-2.83zM.828 0L0 .828V0h.828z' fill='%23ffffff' fill-opacity='0.03' fill-rule='evenodd'/%3E%3C/svg%3E");
    pointer-events: none;
}

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

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

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

.hero-title span {
    color: var(--accent);
}

.hero-text {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 36px;
    font-weight: 700;
}

.stat-text {
    font-size: 14px;
    opacity: 0.8;
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    color: var(--text);
    box-shadow: var(--shadow-hover);
}

.hero-card-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--primary);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 5px;
    color: var(--text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--gray);
    border-radius: 8px;
    font-size: 16px;
    transition: var(--transition);
}

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

.form-note {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 10px;
}

/* ========================================
   Секция преимуществ
======================================== */
.advantages {
    padding: 80px 0;
    background: var(--gray-light);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-subtitle {
    display: inline-block;
    padding: 6px 16px;
    background: var(--secondary);
    color: var(--primary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 15px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 15px;
}

.section-text {
    font-size: 18px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: var(--white);
}

.advantage-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text);
}

.advantage-text {
    font-size: 14px;
    color: var(--text-light);
}

/* ========================================
   Секция курсов
======================================== */
.courses {
    padding: 80px 0;
}

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

.course-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.course-header {
    padding: 30px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
}

.course-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.course-name {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 5px;
}

.course-exam {
    font-size: 14px;
    opacity: 0.8;
}

.course-body {
    padding: 25px 30px;
}

.course-features {
    margin-bottom: 20px;
}

.course-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 14px;
    color: var(--text);
    border-bottom: 1px solid var(--gray);
}

.course-feature:last-child {
    border-bottom: none;
}

.course-feature-icon {
    color: var(--primary);
    font-weight: bold;
}

.course-price {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 20px;
}

.price-current {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.price-old {
    font-size: 18px;
    color: var(--text-light);
    text-decoration: line-through;
}

.price-period {
    font-size: 14px;
    color: var(--text-light);
}

/* ========================================
   Секция результатов
======================================== */
.results {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.results .section-subtitle {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
}

.results .section-title {
    color: var(--white);
}

.results .section-text {
    color: rgba(255, 255, 255, 0.8);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.result-item {
    text-align: center;
    padding: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
}

.result-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.result-text {
    font-size: 16px;
    opacity: 0.9;
}

/* ========================================
   Секция преподавателей
======================================== */
.teachers {
    padding: 80px 0;
    background: var(--gray-light);
}

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

.teacher-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.teacher-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.teacher-photo {
    height: 280px;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--gray) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
    color: var(--primary);
}

.teacher-info {
    padding: 25px;
}

.teacher-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--text);
}

.teacher-subject {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 15px;
}

.teacher-bio {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

.teacher-stats {
    display: flex;
    gap: 20px;
}

.teacher-stat {
    font-size: 13px;
    color: var(--text-light);
}

.teacher-stat strong {
    color: var(--primary);
}

/* ========================================
   Секция отзывов
======================================== */
.reviews {
    padding: 80px 0;
}

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

.review-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.review-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
}

.review-author {
    flex: 1;
}

.review-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}

.review-meta {
    font-size: 13px;
    color: var(--text-light);
}

.review-rating {
    color: #ffc107;
    font-size: 14px;
}

.review-text {
    font-size: 15px;
    color: var(--text);
    line-height: 1.7;
}

.review-result {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--gray);
    font-size: 14px;
    color: var(--primary);
    font-weight: 600;
}

/* ========================================
   Секция CTA
======================================== */
.cta {
    padding: 80px 0;
    background: var(--gray-light);
}

.cta-inner {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius);
    padding: 60px;
    text-align: center;
    color: var(--white);
}

.cta-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-text {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

/* ========================================
   Секция FAQ
======================================== */
.faq {
    padding: 80px 0;
}

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

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

.faq-question {
    padding: 20px 25px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

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

.faq-icon {
    font-size: 20px;
    color: var(--primary);
    transition: var(--transition);
}

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

.faq-answer {
    padding: 0 25px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 0 25px 20px;
    max-height: 300px;
}

.faq-answer p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.7;
}

/* ========================================
   Форма заявки
======================================== */
.contact-form {
    padding: 80px 0;
    background: var(--gray-light);
}

.form-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.form-card .btn {
    width: 100%;
    margin-top: 10px;
}

/* ========================================
   Подвал сайта
======================================== */
.footer {
    background: var(--text);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
}

.footer-text {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
    line-height: 1.7;
}

.footer-social {
    display: flex;
    gap: 10px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
}

.footer-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact-item i {
    color: var(--accent);
    margin-top: 3px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-links {
    display: flex;
    gap: 20px;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.5);
}

.footer-bottom-links a:hover {
    color: var(--white);
}

/* ========================================
   Страница курсов
======================================== */
.page-hero {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-align: center;
}

.page-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

.page-subtitle {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.course-detail {
    padding: 80px 0;
}

.course-detail-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.course-detail-content h2 {
    font-size: 28px;
    color: var(--text);
    margin-bottom: 20px;
}

.course-detail-content p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.course-program {
    margin: 30px 0;
}

.program-item {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: var(--gray-light);
    border-radius: var(--radius);
    margin-bottom: 15px;
}

.program-number {
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    flex-shrink: 0;
}

.program-content h4 {
    font-size: 17px;
    color: var(--text);
    margin-bottom: 5px;
}

.program-content p {
    font-size: 14px;
    color: var(--text-light);
    margin: 0;
}

.course-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.sidebar-price {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.sidebar-price-old {
    font-size: 18px;
    color: var(--text-light);
    text-decoration: line-through;
    margin-bottom: 20px;
}

.sidebar-features {
    margin-bottom: 20px;
}

.sidebar-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 14px;
    border-bottom: 1px solid var(--gray);
}

.sidebar-feature:last-child {
    border-bottom: none;
}

.sidebar-feature i {
    color: var(--primary);
}

/* ========================================
   Страница О нас
======================================== */
.about-intro {
    padding: 80px 0;
}

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

.about-content h2 {
    font-size: 32px;
    color: var(--text);
    margin-bottom: 20px;
}

.about-content p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-list {
    margin: 25px 0;
}

.about-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 16px;
    color: var(--text);
}

.about-list li::before {
    content: '✓';
    color: var(--primary);
    font-weight: bold;
}

.about-image {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--gray) 100%);
    border-radius: var(--radius);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    color: var(--primary);
}

.licenses {
    padding: 80px 0;
    background: var(--gray-light);
}

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

.license-card {
    background: var(--white);
    padding: 30px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
}

.license-icon {
    font-size: 50px;
    color: var(--primary);
    margin-bottom: 15px;
}

.license-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
}

.license-text {
    font-size: 14px;
    color: var(--text-light);
}

/* ========================================
   Модальное окно
======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: var(--transition);
}

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

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text);
}

.modal-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text);
}

/* ========================================
   Адаптивность
======================================== */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-text {
        margin: 0 auto 30px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-card {
        max-width: 500px;
        margin: 40px auto 0;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .courses-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .results-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
        gap: 15px;
    }

    .nav.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .header-phone {
        display: none;
    }

    .hero-title {
        font-size: 32px;
    }

    .section-title {
        font-size: 28px;
    }

    .advantages-grid,
    .courses-grid,
    .teachers-grid,
    .reviews-grid,
    .licenses-grid {
        grid-template-columns: 1fr;
    }

    .results-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .result-number {
        font-size: 36px;
    }

    .cta-inner {
        padding: 40px 20px;
    }

    .cta-title {
        font-size: 24px;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .about-grid,
    .course-detail-grid {
        grid-template-columns: 1fr;
    }

    .course-sidebar {
        position: static;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 28px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 15px;
    }

    .page-title {
        font-size: 28px;
    }
}