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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #0a0a14;
    color: #ddd;
    line-height: 1.6;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
}
header h1 {
    font-size: 3rem;
    color: #f0d080;
    letter-spacing: 2px;
}
.subtitle {
    color: #888;
    font-size: 1.2rem;
}

/* Скрываем радио-кнопки */
input[type="radio"][name="tabs"] {
    display: none;
}

/* Навигация — метки */
nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
}
nav label {
    padding: 10px 20px;
    background: #131320;
    border: 1px solid #2a2a40;
    border-radius: 30px;
    color: #aaa;
    cursor: pointer;
    font-size: 0.95rem;
    transition: 0.3s;
}
nav label:hover {
    background: #252540;
    color: #fff;
    border-color: #f0d080;
}

/* Подсветка активной вкладки через комбинатор ~ */
#tab-about:checked ~ nav label[for="tab-about"],
#tab-sun:checked ~ nav label[for="tab-sun"],
#tab-moon:checked ~ nav label[for="tab-moon"],
#tab-solar:checked ~ nav label[for="tab-solar"],
#tab-galaxy:checked ~ nav label[for="tab-galaxy"],
#tab-comet:checked ~ nav label[for="tab-comet"],
#tab-other:checked ~ nav label[for="tab-other"] {
    background: #f0d080;
    color: #0a0a14;
    border-color: #f0d080;
    font-weight: bold;
}

/* Содержимое вкладок */
.tab-content {
    display: none;
}

/* Показываем нужную вкладку по выбору радио */
#tab-about:checked ~ #content #about,
#tab-sun:checked ~ #content #sun,
#tab-moon:checked ~ #content #moon,
#tab-solar:checked ~ #content #solar,
#tab-galaxy:checked ~ #content #galaxy,
#tab-comet:checked ~ #content #comet,
#tab-other:checked ~ #content #other {
    display: block;
}

/* Заголовки разделов */
h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: #f0d080;
    border-bottom: 1px solid #333;
    padding-bottom: 0.3em;
}

h3 {
    margin-top: 20px;
    color: #f0d080;
}

/* Стиль текста «О себе» */
.about-text p {
    margin-bottom: 10px;
}
.about-text ul {
    list-style: square;
    padding-left: 20px;
    margin: 10px 0 20px;
}
.about-text a {
    color: #f0d080;
}

/* Галерея */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.card {
    display: block;
    text-decoration: none;
    background: #0d0d1a;
    border: 1px solid #222;
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
    aspect-ratio: 4 / 3;
    position: relative;
}
.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.7);
    border-color: #f0d080;
}
.card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}
.card span {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 10px;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    color: #ddd;
    font-size: 0.9rem;
    text-align: center;
}

/* Модальные окна */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.92);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal:target {
    display: flex;
}
.modal-inner {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    text-align: center;
}
.modal-inner img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
}
.modal-inner p {
    margin-top: 15px;
    color: #ccc;
    font-size: 1rem;
}
.close {
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 40px;
    color: #fff;
    text-decoration: none;
    opacity: 0.7;
    transition: 0.2s;
}
.close:hover {
    opacity: 1;
}

/* Подвал */
footer {
    text-align: center;
    margin-top: 60px;
    padding: 20px 0;
    color: #555;
    border-top: 1px solid #222;
}
footer a {
    color: #f0d080;
    text-decoration: none;
}