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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Шапка сайта */
.header {
    background-color: #0077b6;
    color: #fff;
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav a {
    color: #fff;
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
    transition: color 0.3s;
}

.nav a:hover {
    color: #caf0f8;
}

/* Главный баннер (Hero Section) */
.hero {
    background: linear-gradient(rgba(0, 119, 182, 0.65), rgba(3, 4, 94, 0.75)), 
                url('https://unsplash.com') no-repeat center center/cover;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: #fff;
    padding-top: 80px;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-content p {
    text-align: center;
    font-size: 20px;
    margin-bottom: 30px;
    max-width: 600px;
}

/* Кнопки */
.btn {
    background-color: #00b4d8;
    color: #fff;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 14px;
    border: none;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #90e0ef;
    color: #030494;
}

/* Секции контента */
.section {
    padding: 80px 0;
}

.section h2 {
    font-size: 32px;
    text-align: center;
    margin-bottom: 40px;
    color: #030494;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section h2::after {
    content: '';
    width: 60px;
    height: 4px;
    background-color: #00b4d8;
    margin: 10px auto 0;
    border-radius: 2px;
}

.light {
    background-color: #f8f9fa;
}

.dark {
    background-color: #030494;
    color: #fff;
}

.dark h2 {
    color: #fff;
}

/* О плавании */
.about-container {
    display: flex;
    align-items: center;
    gap: 40px;
}

.about-text {
    width: 45%;
}

.about-text h2 {
    text-align: left;
}

.about-text h2::after {
    margin: 10px 0 0 0;
}

.about-text p {
    margin-bottom: 15px;
    font-size: 16px;
}

.about-img {
    width: 45%;
}

.about-img img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 16px  #00b4d8;
}

/* Карточки стилей плавания*/
.styles {
    display: flex;
    justify-content: space-between;
    gap: 30px;
}

.card {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 10px black;
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: 25px;
}

.card-content h3 {
    margin-bottom: 12px;
    color: #0077b6;
}

/* Список пользы */
.benefits-list {
    max-width: 600px;
    margin: 0 auto;
}

.benefits-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 15px;
    font-size: 18px;
}

/* раздел экипировки */
.equip {
    display: flex;
    justify-content: space-between;
    gap: 25px;
    margin-top: 20px;
}

.equip-card {
    width: 45%;
    background: #f8f9fa;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    border-bottom: 4px solid #0077b6;
    box-shadow: 0 4px 6px  #00b4d8;
    transition: transform 0.3s;
}

.equip-card:hover {
    transform: translateY(-5px);
}

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

.equip-card h3 {
    color: #030494;
    margin-bottom: 12px;
    font-size: 20px;
}

.equip-card p {
    font-size: 15px;
    color: #555;
}

/* раздел фактов */
.facts- {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 40px;
}

.fact-item {
    flex: 1;
    background: rgba(255, 255, 255, 0.08);
    padding: 25px;
    border-radius: 12px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.15);
}


.fact-item p {
    font-size: 16px;
    color: #caf0f8;
}

/* Footer */
.footer {
    background-color: #020244;
    color: #90e0ef;
    text-align: center;
    padding: 25px 0;
    font-size: 14px;
}