/* =========================================
   ИНТЕРАКТИВНАЯ ШКОЛА МУДРО
   Основные стили — версия для mudro.online
   ========================================= */

:root {
    /* Цвета бренда */
    --blue: #1E3A5F;  /* Тёмно-синий как в секции "Преимущества" */
    --blue-dark: #162C46;
    --green: #28A745;
    --green-light: #34CE57;
    --white: #FFFFFF;
    --bg: #F8FAFC;
    --text: #1A1A2E;
    --text-light: #64748B;
    --border: #E2E8F0;
    --shadow: 0 4px 20px rgba(30, 58, 95, 0.08);
    --shadow-lg: 0 8px 40px rgba(30, 58, 95, 0.12);
    --radius: 16px;
    --radius-sm: 12px;
    --transition: 0.3s ease;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Open Sans', 'Segoe UI', sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-family: 'Montserrat', 'Segoe UI', sans-serif;
    line-height: 1.3;
    color: var(--text);
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

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

/* ===== КНОПКИ ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: var(--blue);
    color: var(--white);
}
.btn-primary:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(32, 94, 220, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--blue);
    border: 2px solid var(--border);
}
.btn-secondary:hover {
    border-color: var(--blue);
    color: var(--blue);
    transform: translateY(-2px);
}

.btn-green {
    background: var(--green);
    color: var(--white);
}
.btn-green:hover {
    background: var(--green-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(40, 167, 69, 0.3);
}

/* ===== СЕКЦИИ ===== */
.section { padding: 80px 0; }
.section-header { text-align: center; margin-bottom: 48px; }

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(40, 167, 69, 0.1);
    color: var(--green);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 12px;
}

.section-header p {
    font-size: 17px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== АНИМАЦИИ ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.header.scrolled { box-shadow: var(--shadow); }

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

/* Логотип с текстом в две строки */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
}

.logo-img {
    width: 45px;
    height: 45px;
    object-fit: contain;
    flex-shrink: 0;
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.2;
    display: flex;
    flex-direction: column;  /* Вертикальное расположение */
    gap: 2px;
}

.logo-green {
    color: #1E3A5F;  /* Тёмно-синий как в секции "Преимущества" */
    font-size: 12px;  /* Уменьшаем */
    font-weight: 500;  /* Убираем жирный (было 700) */
    white-space: nowrap;
}

.logo-blue {
    color: #1E3A5F;  /* Тёмно-синий как в секции "Преимущества" */
    font-size: 16px;  /* Чуть больше */
    font-weight: 500;  /* Убираем жирный */
    white-space: nowrap;
}

.logo-sub {
    font-size: 10px;
    color: var(--text-light);
    margin-top: 2px;
    font-weight: 400;
}

/* Навигация — уменьшаем отступы */
.nav {
    display: flex;
    align-items: center;
    gap: 2px;  /* Уменьшаем gap */
}

.nav a {
    padding: 8px 8px;  /* Уменьшаем padding */
    border-radius: 8px;
    font-size: 13px;  /* Уменьшаем шрифт */
    font-weight: 500;
    color: var(--text);
    transition: var(--transition);
    white-space: nowrap;
}

.nav a:hover { background: var(--bg); color: var(--blue); }

/* Контакты — без email */
.header-contacts {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.header-phone {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text);
    font-weight: 600;
    font-size: 14px;  /* Уменьшаем */
    white-space: nowrap;
}

.header-phone i { color: var(--green); font-size: 16px; }

.btn-header {
    background: var(--blue);
    color: var(--white);
    padding: 10px 18px;  /* Уменьшаем padding */
    border-radius: 10px;
    font-size: 13px;  /* Уменьшаем шрифт */
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-header:hover { background: var(--blue-dark); transform: translateY(-1px); }

/* Мобильное меню */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text);
    cursor: pointer;
    padding: 8px;
}

.mobile-nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 999;
    padding: 24px;
    flex-direction: column;
    gap: 8px;
    overflow-y: auto;
}

.mobile-nav.active { display: flex; }

.mobile-nav a {
    padding: 14px 16px;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
}
.mobile-nav a:hover { background: var(--bg); color: var(--blue); }

/* ===== HERO ===== */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #F0F7FF 0%, #F0FDF4 50%, #F8FAFC 100%);
    position: relative;
    overflow: hidden;
}

.hero::before, .hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
}

.hero::before {
    top: -30%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(32, 94, 220, 0.08) 0%, transparent 70%);
}

.hero::after {
    bottom: -20%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(40, 167, 69, 0.08) 0%, transparent 70%);
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    color: var(--green);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    animation: fadeInUp 0.5s ease;
}

.hero h1 {
    font-size: 44px;
    font-weight: 700;
    margin-bottom: 16px;
    animation: fadeInUp 0.5s ease 0.1s both;
}

.hero h1 .green { color: var(--green); }
.hero h1 .blue { color: var(--blue); }

.hero-subtitle {
    font-size: 19px;
    color: var(--text-light);
    margin-bottom: 24px;
    animation: fadeInUp 0.5s ease 0.2s both;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
    animation: fadeInUp 0.5s ease 0.3s both;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
}

.hero-feature i {
    color: var(--green);
    font-size: 20px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.5s ease 0.4s both;
}

.hero-image {
    position: relative;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-image img,
.hero-video-wrapper {
    max-width: 700px;    /* Макс. ширина */
    aspect-ratio: 16/9;  /* Соотношение сторон */
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.hero-video-wrapper iframe {
    width: 100%;
    height: 100%;
    border-radius: var(--radius);
}

.hero-stats {
    position: absolute;
    bottom: -20px;
    left: -20px;
    background: var(--white);
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    gap: 24px;
}

/* Сертификат над видео */
.hero-certificate-above {
    display: flex;
    justify-content: center;
    margin-top: -40px;
    margin-bottom: 20px;
    position: relative;
    z-index: 10;
}

.official-cert-badge {
    background: var(--white);
    padding: 12px 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
}

.official-cert-badge i {
    color: var(--green);
    font-size: 22px;
}

/* Статистика под видео */
.hero-stats-below {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-top: 30px;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
}

.hero-stats-below .hero-stat {
    text-align: center;
}

.hero-stats-below .hero-stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 32px;
    font-weight: 700;
    color: var(--blue);
    display: block;
}

.hero-stats-below .hero-stat-label {
    font-size: 13px;
    color: var(--text-light);
    margin-top: 4px;
    display: block;
}

.hero-stat { text-align: center; }
.hero-stat-number {
    font-family: 'Montserrat', sans-serif;
    font-size: 26px;
    font-weight: 700;
    color: var(--blue);
}
.hero-stat-label {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

.hero-float {
    position: absolute;
    background: var(--white);
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: float 3s ease-in-out infinite;
}

.hero-float-top {
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
}

.hero-float-bottom {
    top: 20px;
    right: -10px;
}

.hero-float i { color: var(--green); font-size: 22px; }
.hero-float span { font-size: 13px; font-weight: 600; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* ===== PROBLEMS ===== */
.problems { background: var(--white); }

.problems-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.problem-card {
    background: var(--bg);
    padding: 28px 24px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.problem-card:hover {
    border-color: var(--green);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.problem-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--green), var(--blue));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    color: var(--white);
    font-size: 24px;
}

.problem-card h3 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 8px;
}

.problem-card p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.5;
}

.problems-cta { text-align: center; margin-top: 40px; }

/* ===== COURSES ===== */
.courses { background: var(--bg); }

.course-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border-radius: 50px;
    border: 2px solid var(--border);
    background: var(--white);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
    border-color: var(--blue);
    background: var(--blue);
    color: var(--white);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

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

.course-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.course-card-header { padding: 24px 24px 16px; }
.course-flag { font-size: 36px; margin-bottom: 12px; }

.course-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.course-age {
    font-size: 13px;
    color: var(--green);
    font-weight: 500;
}

.course-card-body { padding: 0 24px 20px; }

.course-features li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    margin-bottom: 8px;
}

.course-features li i {
    color: var(--green);
    font-size: 16px;
    margin-top: 2px;
}

.course-card-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course-price {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 18px;
    color: var(--blue);
}

.course-price small {
    font-size: 12px;
    font-weight: 400;
    color: var(--text-light);
}

.btn-course {
    background: var(--blue);
    color: var(--white);
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-course:hover { background: var(--blue-dark); }

/* Hover-оверлей на карточке */
.course-hover {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(32, 94, 220, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 32px;
    text-align: center;
    opacity: 0;
    transition: var(--transition);
    border-radius: var(--radius);
}

.course-card:hover .course-hover { opacity: 1; }

.course-hover h4 {
    color: var(--white);
    font-size: 20px;
    margin-bottom: 12px;
}

.course-hover p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    margin-bottom: 24px;
    line-height: 1.6;
}

/* ===== ПРЕИМУЩЕСТВА ===== */
.advantages {
    background: #1E3A5F;  /* Тёмно-синий фон */
    color: var(--white);
    padding: 80px 0;
}

.advantages .section-badge {
    background: rgba(40, 167, 69, 0.15);
    color: var(--green);
}

.advantages .section-header h2 {
    color: var(--white);
}

.advantages .section-header p {
    color: rgba(255, 255, 255, 0.8);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.advantage-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.advantage-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-4px);
}

.advantage-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 209, 102, 0.2);  /* Жёлтый фон для иконок */
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 28px;
    color: #FFD166;  /* Жёлтый цвет иконок */
}

.advantage-card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--white);
}

.advantage-card p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.5;
}

/* ===== VIDEO ===== */
.video-section { background: var(--white); }

/* Одно видео по центру */
.video-container-single {
    max-width: 900px;
    margin: 0 auto;
}

.video-container-single .video-wrapper {
    position: relative;
    padding-bottom: 56.25%;  /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    max-width: 100%;
    margin: 0 auto;
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, var(--blue), var(--green));
    cursor: pointer;
}

.video-container-single iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: var(--radius);
}

.video-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.play-btn {
    width: 70px;         /* Кнопка Play */
    height: 70px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin-bottom: 16px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.video-wrapper:hover .play-btn {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.1);
}

/* ===== TESTIMONIALS ===== */
.testimonials { background: var(--bg); }

.testimonials-slider { position: relative; overflow: hidden; }
.testimonials-track { display: flex; transition: transform 0.5s ease; }

.testimonial-card {
    min-width: calc(33.333% - 16px);
    margin: 0 8px;
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
}

.testimonial-stars { color: #FFB800; font-size: 18px; margin-bottom: 16px; }

.testimonial-text {
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author { display: flex; align-items: center; gap: 12px; }

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue), var(--green));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 600;
    font-size: 18px;
    font-family: 'Montserrat', sans-serif;
}

.testimonial-name { font-weight: 600; font-size: 15px; }
.testimonial-role { font-size: 13px; color: var(--text-light); }

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 32px;
}

.slider-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--border);
    background: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 18px;
}

.slider-btn:hover { border-color: var(--blue); color: var(--blue); }

/* ===== CALCULATOR ===== */
.calculator { background: var(--white); }

.calc-container {
    max-width: 700px;
    margin: 0 auto;
    background: var(--bg);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.calc-step { margin-bottom: 28px; }

.calc-step-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.calc-step-title span {
    width: 28px;
    height: 28px;
    background: var(--green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.calc-options { display: flex; flex-wrap: wrap; gap: 10px; }

.calc-option {
    padding: 10px 20px;
    border-radius: 10px;
    border: 2px solid var(--border);
    background: var(--white);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.calc-option:hover { border-color: var(--blue); }

.calc-option.selected {
    border-color: var(--blue);
    background: rgba(32, 94, 220, 0.1);
    color: var(--blue);
    font-weight: 500;
}

.calc-result {
    background: var(--white);
    border-radius: var(--radius-sm);
    padding: 24px;
    margin-top: 24px;
    border: 2px solid var(--green);
    display: none;
}

.calc-result.visible { display: block; }

.calc-result h4 {
    font-size: 18px;
    margin-bottom: 12px;
}

.calc-result-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.calc-result-item:last-child { border-bottom: none; }
.calc-result-item strong { color: var(--blue); font-weight: 600; }

.calc-result-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

/* ===== SERVICES & PRICES ===== */
.services { background: var(--bg); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--green);
}

.service-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--blue);
}

.service-card ul { margin-bottom: 20px; }

.service-card li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 14px;
    margin-bottom: 10px;
}

.service-card li i {
    color: var(--green);
    font-size: 18px;
    margin-top: 2px;
}

.service-price {
    font-family: 'Montserrat', sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--blue);
    margin-bottom: 16px;
}

.service-price small {
    font-size: 14px;
    font-weight: 400;
    color: var(--text-light);
}

/* ===== CONTACT ===== */
.contact { background: var(--white); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: rgba(40, 167, 69, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--green);
    font-size: 20px;
    flex-shrink: 0;
}

.contact-item-text h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-item-text p { font-size: 14px; color: var(--text-light); }
.contact-item-text a { color: var(--blue); }
.contact-item-text a:hover { text-decoration: underline; }

.contact-map {
    border-radius: var(--radius);
    overflow: hidden;
    height: 100%;
    min-height: 400px;
    background: var(--bg);
}

.contact-map iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

.contact-link.max { background: #6C5CE7; color: white; }
.contact-link.vk { background: #0077FF; color: white; }
.contact-link.email { background: var(--green); color: white; }
.contact-link.video { background: var(--blue); color: white; }

.contact-link:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

/* ===== FOOTER ===== */
.footer {
    background: #1E3A5F;  /* Тёмно-синий как в преимуществах */
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-cta {
    background: rgba(40, 167, 69, 0.1);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    margin-bottom: 48px;
    border: 1px solid rgba(40, 167, 69, 0.2);
}

.footer-cta h3 { 
    font-size: 24px; 
    margin-bottom: 8px;
    color: var(--white);  /* Белый цвет */
}

.footer-cta p { 
    color: rgba(255, 255, 255, 0.8); 
    margin-bottom: 32px; 
}

/* Кнопка в футере - крупная и по центру */
.footer-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 18px 48px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius);
    background: var(--blue);
    color: var(--white);
    transition: var(--transition);
    margin: 0 auto;
}

.footer-btn:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(32, 94, 220, 0.3);
}

.footer-btn i {
    font-size: 20px;
}

/* Логотип в футере белый */
.footer-about .logo-text {
    color: var(--white);
}

.footer-about .logo-green,
.footer-about .logo-blue {
    color: var(--white);
}

.footer-about p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-top: 12px;
    line-height: 1.6;
}

.footer-col h4 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--green);  /* Заголовки колонок зелёные */
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    margin-bottom: 10px;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p { 
    color: rgba(255, 255, 255, 0.4); 
    font-size: 13px; 
}

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

.footer-legal a {
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px;
    transition: var(--transition);
}

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

/* ===== POPUP ===== */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}

.popup-overlay.active { display: flex; }

.popup {
    background: var(--white);
    border-radius: var(--radius);
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideDown 0.3s ease;
    position: relative;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.popup-header {
    padding: 32px 32px 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.popup-close {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 24px;
    color: var(--text-light);
    padding: 4px;
    transition: var(--transition);
}
.popup-close:hover { color: var(--text); }

.popup-body { padding: 24px 32px 32px; }
.popup h3 { font-size: 22px; margin-bottom: 4px; }
.popup p { color: var(--text-light); font-size: 14px; margin-bottom: 24px; }

.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus {
    border-color: var(--blue);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.btn-submit {
    width: 100%;
    padding: 16px;
    background: var(--blue);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
}
.btn-submit:hover { background: var(--blue-dark); }

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

.form-success { display: none; text-align: center; padding: 20px 0; }
.form-success.visible { display: block; }
.form-success i { font-size: 56px; color: var(--green); margin-bottom: 16px; }

/* ===== RESPONSIVE ===== */
/* Адаптив для шапки */
@media (max-width: 1200px) {
    .header-inner { gap: 10px; }
    .logo-img { width: 40px; height: 40px; }
    .logo-green { font-size: 11px; }
    .logo-blue { font-size: 15px; }
    .nav a { padding: 8px 6px; font-size: 12px; }
}

@media (max-width: 1024px) {
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero h1 { font-size: 36px; }
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
    .advantages-grid { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonial-card { min-width: calc(50% - 16px); }
}

@media (max-width: 992px) {
    .nav { display: none; }  /* Скрываем меню */
    .mobile-toggle { display: block; }
}

@media (max-width: 768px) {
    .nav, .header-contacts { display: none; }
    .mobile-toggle { display: block; }
    
    .header-inner {
        height: 64px;
        gap: 8px;
    }
    .logo-img {
        width: 36px;
        height: 36px;
    }
    .logo-green { font-size: 10px; }
    .logo-blue { font-size: 14px; }
    .logo-sub { 
        font-size: 9px;
        display: none;  /* Скрываем подзаголовок на мобильных */
    }
    .header-phone {
        font-size: 13px;
    }
    .btn-header {
        padding: 8px 14px;
        font-size: 12px;
    }
    
    .hero { padding: 100px 0 60px; }
    .hero h1 { font-size: 28px; }
    .hero-subtitle { font-size: 16px; }
    .hero-stats { position: static; margin-top: 20px; justify-content: center; }
    .hero-float { display: none; }
    
    /* Адаптив для сертификата и статистики */
    .hero-certificate-above {
        justify-content: center;
        margin-top: -20px;
    }
    .hero-stats-below {
        flex-direction: column;
        gap: 20px;
        margin-top: 20px;
    }
    .hero-stats-below .hero-stat-number {
        font-size: 26px;
    }
    
    .problems-grid { grid-template-columns: repeat(2, 1fr); }
    .courses-grid, .advantages-grid, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
    
    .section-header h2 { font-size: 28px; }
    .testimonial-card { min-width: calc(100% - 16px); }
    
    .calc-container { padding: 24px; }
    .popup-body, .popup-header { padding-left: 20px; padding-right: 20px; }
    
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
    .logo-text { display: none; }  /* Только логотип на очень маленьких экранах */
    .header-phone { display: none; }  /* Скрываем телефон */
    
    .problems-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .hero-stat-number { font-size: 22px; }
    .hero-stats { flex-direction: column; gap: 12px; }
}
/* ===== БОЛЬШАЯ КНОПКА ЛЕТНЯЯ ШКОЛА ===== */
.summer-school-btn-wrapper {
    display: flex;
    justify-content: center;
    width: 100%;
    margin: 30px 0;
}

.summer-school-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8C42 100%);
    color: white;
    padding: 24px 48px;
    border-radius: 16px;
    font-family: 'Montserrat', sans-serif;
    font-size: 28px;
    font-weight: 700;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 2px;
    box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
    transition: all 0.3s ease;
    animation: pulse-glow 2s infinite;
}

.summer-school-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 12px 32px rgba(255, 107, 53, 0.6);
    background: linear-gradient(135deg, #FF8C42 0%, #FF6B35 100%);
}

.summer-school-btn i {
    font-size: 36px;
    animation: rotate-sun 4s linear infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
    }
    50% {
        box-shadow: 0 8px 32px rgba(255, 107, 53, 0.7);
    }
}

@keyframes rotate-sun {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@media (max-width: 768px) {
    .summer-school-btn-wrapper {
        margin: 20px 0;
    }
    .summer-school-btn {
        padding: 20px 32px;
        font-size: 22px;
        width: 100%;
        justify-content: center;
    }
    .summer-school-btn i {
        font-size: 28px;
    }
}