:root {
    --primary-color: #E63946;
    --secondary-color: #1D3557;
    --accent-color: #F1FAEE;
    --text-color: #333333;
    --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-main);
    color: var(--text-color);
    line-height: 1.6;
    background-color: #ffffff;
    scroll-behavior: smooth;
}

/* Навигация */
header {
    background-color: var(--secondary-color);
    color: white;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo { font-size: 1.8rem; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; }
.logo span { color: var(--primary-color); }

.nav-container { display: flex; align-items: center; gap: 30px; }
nav ul { list-style: none; display: flex; gap: 2rem; }
nav a { color: white; text-decoration: none; font-weight: 500; transition: color 0.3s; }
nav a:hover { color: var(--primary-color); }

.lang-switch { display: flex; gap: 10px; background: rgba(255, 255, 255, 0.1); padding: 5px 10px; border-radius: 20px; }
.lang-btn { background: none; border: none; color: #888; cursor: pointer; font-weight: bold; font-size: 0.9rem; transition: color 0.3s; }
.lang-btn.active { color: white; }
.lang-btn:hover:not(.active) { color: var(--accent-color); }

/* Главный экран */
.hero {
    background: linear-gradient(rgba(29, 53, 87, 0.85), rgba(29, 53, 87, 0.85)), url('https://images.unsplash.com/photo-1543783207-ec64e4d95325?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80') center/cover;
    color: white;
    text-align: center;
    padding: 120px 20px;
}
.hero h1 { font-size: 3.5rem; margin-bottom: 20px; font-weight: 800; }
.hero p { font-size: 1.3rem; margin-bottom: 30px; max-width: 700px; margin: 0 auto 30px; }

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 15px 35px;
    text-decoration: none;
    border-radius: 5px;
    font-size: 1.1rem;
    font-weight: bold;
    transition: background 0.3s, transform 0.2s;
    border: none;
    cursor: pointer;
    text-align: center;
}
.btn:hover { background-color: #c1121f; transform: translateY(-2px); }

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

/* Секция О нас и Преимущества */
.features { padding: 80px 5%; text-align: center; background-color: var(--accent-color); }
.about-text { max-width: 800px; margin: 0 auto 50px auto; font-size: 1.1rem; background: white; padding: 30px; border-radius: 10px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); border-left: 5px solid var(--primary-color); text-align: left; }
.features h2 { margin-bottom: 40px; font-size: 2.2rem; color: var(--secondary-color); text-align: center; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.feature-card { background: white; padding: 30px; border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); }
.feature-card h3 { color: var(--primary-color); margin-bottom: 15px; }

/* Секция курсов */
.courses { padding: 80px 5%; text-align: center; }
.courses h2 { margin-bottom: 40px; font-size: 2.2rem; color: var(--secondary-color); }
.course-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; max-width: 1200px; margin: 0 auto; }
.course-card { border: 2px solid var(--accent-color); border-radius: 10px; overflow: hidden; transition: transform 0.3s; display: flex; flex-direction: column; }
.course-card:hover { transform: translateY(-10px); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
.course-header { background-color: var(--secondary-color); color: white; padding: 20px; font-size: 1.5rem; font-weight: bold; }
.course-header.spanish { background-color: #E9C46A; color: var(--secondary-color); }
.course-header.german { background-color: #2A9D8F; }
.course-header.polish { background-color: #E76F51; }
.course-body { padding: 30px; display: flex; flex-direction: column; flex-grow: 1; }
.course-body ul { list-style: none; margin-bottom: 20px; text-align: left; flex-grow: 1; }
.course-body li { margin-bottom: 10px; padding-left: 20px; position: relative; }
.course-body li::before { content: '✓'; color: var(--primary-color); position: absolute; left: 0; font-weight: bold; }

/* Секция Отзывов */
.reviews { padding: 80px 5%; background-color: var(--accent-color); text-align: center; overflow: hidden; }
.reviews h2 { margin-bottom: 40px; font-size: 2.2rem; color: var(--secondary-color); }

.reviews-wrapper {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding-bottom: 20px;
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) #e0e0e0;
}

.reviews-wrapper::-webkit-scrollbar { height: 8px; }
.reviews-wrapper::-webkit-scrollbar-track { background: #e0e0e0; border-radius: 10px; }
.reviews-wrapper::-webkit-scrollbar-thumb { background-color: var(--primary-color); border-radius: 10px; }

.review-card {
    min-width: 320px;
    max-width: 320px;
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
    scroll-snap-align: start;
    text-align: left;
    display: flex;
    flex-direction: column;
}

.stars { color: #FFD700; font-size: 1.2rem; margin-bottom: 15px; }
.review-text { font-size: 0.95rem; font-style: italic; margin-bottom: 20px; flex-grow: 1; color: #555; }
.review-author { font-weight: bold; color: var(--secondary-color); border-top: 1px solid #eee; padding-top: 15px; }
.review-course { font-size: 0.8rem; color: #888; text-transform: uppercase; margin-top: 5px; }

.leave-review-container { margin-top: 40px; }

/* Попап (Модальное окно) */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(29, 53, 87, 0.8);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-content {
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    width: 100%;
    max-width: 500px;
    position: relative;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    animation: modalFadeIn 0.3s ease-out;
}

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

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    cursor: pointer;
    color: #888;
    transition: color 0.3s;
}

.close-btn:hover { color: var(--primary-color); }
.modal h3 { color: var(--secondary-color); margin-bottom: 20px; font-size: 1.5rem; }

/* Формы */
.contact { background-color: var(--secondary-color); color: white; padding: 80px 5%; text-align: center; }
.contact h2 { margin-bottom: 20px; }
.contact p { margin-bottom: 40px; }
form { max-width: 500px; margin: 0 auto; display: flex; flex-direction: column; gap: 15px; }
input, select, textarea { padding: 15px; border: 1px solid #ddd; border-radius: 5px; font-size: 1rem; font-family: var(--font-main); width: 100%; }
textarea { resize: vertical; min-height: 100px; }

/* Сообщение об успехе */
.success-message {
    color: #2A9D8F; /* Зеленый цвет */
    font-weight: bold;
    margin-top: 10px;
    padding: 10px;
    background-color: rgba(42, 157, 143, 0.1);
    border-radius: 5px;
}

footer { background-color: #112233; color: #888; text-align: center; padding: 20px; font-size: 0.9rem; }

@media (max-width: 768px) {
    nav ul { display: none; }
    .hero h1 { font-size: 2.2rem; }
    .nav-container { gap: 15px; }
    .review-card { min-width: 280px; }
    .modal-content { padding: 30px 20px; }
}