---

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

body {
    font-family: Arial, sans-serif;
    background-color: #f4f6fb;
    color: #25283d;
    line-height: 1.6;
}

/* Шапка сайта */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    padding: 20px 6%;
    background-color: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #6c63ff;
}

.search {
    width: 280px;
    padding: 12px 15px;
    border: 1px solid #dcdfea;
    border-radius: 8px;
    font-size: 14px;
    outline: none;
}

.search:focus {
    border-color: #6c63ff;
}

nav {
    display: flex;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: #25283d;
    font-weight: bold;
    transition: color 0.3s;
}

nav a:hover {
    color: #6c63ff;
}

/* Основной контейнер */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 5%;
}

.intro {
    text-align: center;
    margin-bottom: 35px;
}

.intro h1 {
    font-size: 36px;
    margin-bottom: 10px;
    color: #25283d;
}

.intro p {
    color: #6d7185;
    font-size: 17px;
}

/* Сетка каталога — CSS Grid */
.catalog {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 25px;
}

/* Карточка курса — Flexbox */
.course-card {
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
    border-radius: 14px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.07);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.course-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.13);
}

.course-card img {
    width: 100%;
    height: 190px;
    object-fit: cover;
}

/* Содержимое карточки */
.card-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    flex: 1;
    padding: 22px;
}

.level {
    display: inline-block;
    padding: 5px 12px;
    margin-bottom: 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.beginner {
    background-color: #e0f8e9;
    color: #198754;
}

.medium {
    background-color: #fff0d6;
    color: #b66a00;
}

.advanced {
    background-color: #fce4ec;
    color: #c2185b;
}

.card-content h2 {
    font-size: 21px;
    margin-bottom: 10px;
}

.description {
    color: #6d7185;
    font-size: 14px;
    margin-bottom: 15px;
}

.duration {
    font-size: 14px;
    margin-bottom: 8px;
}

.rating {
    color: #f5a623;
    margin-bottom: 15px;
}

.rating span {
    color: #555b70;
    font-size: 14px;
}

/* Кнопка всегда у нижнего края */
.enroll {
    margin-top: auto;
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 8px;
    background-color: #6c63ff;
    color: #ffffff;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.15s;
}

.enroll:hover {
    background-color: #5148e5;
}

.enroll:active {
    background-color: #3f37c9;
    transform: scale(0.98);
}

/* Подвал */
.footer {
    text-align: center;
    padding: 25px;
    background-color: #25283d;
    color: #ffffff;
    margin-top: 30px;
}

.footer p + p {
    margin-top: 5px;
    color: #c8cada;
}

/* Адаптация для планшетов */
@media (max-width: 1024px) {
    .catalog {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .intro h1 {
        font-size: 30px;
    }
}

/* Адаптация для телефонов */
@media (max-width: 600px) {
    .header {
        flex-direction: column;
        padding: 20px;
    }

    .search {
        width: 100%;
    }

    nav {
        justify-content: center;
    }

    .container {
        padding: 25px 15px;
    }

    .intro h1 {
        font-size: 26px;
    }

    .catalog {
        grid-template-columns: 1fr;
    }

    .course-card img {
        height: 200px;
    }
}