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

:root {
    --primary: #2c5282;
    --primary-dark: #1a365d;
    --accent: #ed8936;
    --text: #2d3748;
    --text-light: #718096;
    --bg: #ffffff;
    --bg-alt: #f7fafc;
    --border: #e2e8f0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-dark);
}

h1, h2, h3 {
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }

.lead {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

/* ===== Шапка ===== */
.site-header {
    background: var(--primary-dark);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    color: white;
    font-size: 1.3rem;
    font-weight: bold;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.main-nav a {
    color: white;
    opacity: 0.9;
}

.main-nav a:hover {
    opacity: 1;
    color: var(--accent);
}

/* ===== Основной контент ===== */
.site-main {
    flex: 1;
    padding: 2rem 0;
}

/* ===== Hero ===== */
.hero {
    text-align: center;
    padding: 3rem 1rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.hero h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.hero .lead {
    color: rgba(255,255,255,0.9);
}

/* ===== Статистика ===== */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-alt);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    border: 1px solid var(--border);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary);
}

.stat-label {
    color: var(--text-light);
    margin-top: 0.5rem;
}

/* ===== Карточки разделов ===== */
.sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.section-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
    color: var(--text);
}

.section-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    color: var(--text);
}

.section-card h2 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

/* ===== Хлебные крошки ===== */
.breadcrumbs {
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.breadcrumbs a {
    color: var(--text-light);
}

.breadcrumbs a:hover {
    color: var(--primary);
}

/* ===== Списки годов и классов ===== */
.years-list, .classes-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.year-card a, .class-card a {
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    transition: all 0.2s;
}

.year-card a:hover, .class-card a:hover {
    border-color: var(--primary);
    box-shadow: 0 4px 8px rgba(0,0,0,0.08);
}

.year, .class-name {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

.count {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* ===== Таблица выпускников ===== */
.graduates-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.graduates-table th,
.graduates-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.graduates-table th {
    background: var(--bg-alt);
    font-weight: 600;
    color: var(--primary-dark);
}

.graduates-table tr:hover {
    background: var(--bg-alt);
}

/* ===== Фотогалерея ===== */
.photos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.photo-category-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.2s;
    color: var(--text);
}

.photo-category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    color: var(--text);
}

.photo-category-card .cover {
    height: 200px;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-alt);
}

.photo-category-card .cover.no-image {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.photo-category-card .info {
    padding: 1rem;
}

.photo-category-card h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.photo-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s;
}

.photo-item img:hover {
    transform: scale(1.02);
}

/* ===== Форма ===== */
.contact-form {
    max-width: 600px;
    background: white;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(44, 82, 130, 0.1);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s;
}

.btn:hover {
    background: var(--primary-dark);
    color: white;
}

/* ===== Flash-сообщения ===== */
.flash {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.flash-success {
    background: #c6f6d5;
    color: #22543d;
    border: 1px solid #9ae6b4;
}

.flash-error {
    background: #fed7d7;
    color: #742a2a;
    border: 1px solid #feb2b2;
}

/* ===== Страница ошибки ===== */
.error-page {
    text-align: center;
    padding: 4rem 1rem;
}

.error-page h1 {
    font-size: 5rem;
    color: var(--primary);
}

.empty {
    text-align: center;
    padding: 3rem;
    color: var(--text-light);
    font-style: italic;
}

/* ===== Подвал ===== */
.site-footer {
    background: var(--primary-dark);
    color: white;
    padding: 1.5rem 0;
    margin-top: 3rem;
    text-align: center;
}

.site-footer p {
    margin: 0.25rem 0;
    opacity: 0.9;
}

/* ===== АДАПТИВНАЯ ВЁРСТКА ===== */

/* Планшеты */
@media (max-width: 768px) {
    .site-header .container {
        flex-direction: column;
        text-align: center;
    }

    .main-nav {
        justify-content: center;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }

    .years-list, .classes-list {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }

    .graduates-table {
        font-size: 0.9rem;
    }

    .graduates-table th,
    .graduates-table td {
        padding: 0.5rem;
    }
}

/* Мобильные устройства */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .main-nav {
        gap: 0.75rem;
        font-size: 0.9rem;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .stat-value {
        font-size: 2rem;
    }

    .section-card {
        padding: 1.5rem;
    }

    .years-list, .classes-list {
        grid-template-columns: 1fr 1fr;
    }

    .photo-gallery {
        grid-template-columns: 1fr 1fr;
    }

    .contact-form {
        padding: 1.5rem;
    }
}