:root {
    --bg: #fafafa;
    --surface: #ffffff;
    --text: #0a0a0a;
    --text-secondary: #666666;
    --border: #e5e5e5;
    --accent: #000000;
    --accent-hover: #333333;
    --danger: #dc2626;
    --success: #16a34a;
    --secondary: #6b7280;
    --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --transition: all 0.2s ease;
}

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

body {
    font-family: var(--font-main);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; transition: var(--transition); }
a:hover { opacity: 0.7; }

/* ШАПКА */
.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 100;
    padding: 16px 0;
}

.header-inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 32px;
}

.nav-left {
    display: flex;
    gap: 24px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.nav-left a:hover { opacity: 0.7; }

.logo-header { text-align: center; }
.logo-header img { height: 42px; width: auto; }

.nav-right {
    display: flex;
    justify-content: flex-end;
    gap: 16px;
    align-items: center;
}

.search-form {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
}

.search-form input {
    border: none;
    padding: 8px 16px;
    font-size: 14px;
    outline: none;
    width: 180px;
}

.search-form button {
    background: none;
    border: none;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 16px;
}

.btn-login {
    background: var(--accent);
    color: white;
    padding: 8px 20px;
    border-radius: 24px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
}

.btn-login:hover {
    background: var(--accent-hover);
    opacity: 1;
}

/* КОНТЕЙНЕР */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 48px 24px;
}

/* ЛЕНТА НОВОСТЕЙ */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 48px;
}

.article-card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.article-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.article-card-content { padding: 24px; }

.article-card .cat {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.article-card h2 {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
}

.article-card .meta {
    font-size: 13px;
    color: var(--text-secondary);
}

/* СТРАНИЦА СТАТЬИ */
.article-full {
    max-width: 760px;
    margin: 0 auto;
    padding: 64px 24px;
}

.article-full .cat {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-secondary);
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.article-full h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 24px;
}

.article-full .meta {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.article-full img {
    width: 100%;
    border-radius: var(--radius);
    margin-bottom: 32px;
}

.article-full .content {
    font-size: 18px;
    line-height: 1.8;
}

.article-full .content p { margin-bottom: 24px; }

/* КНОПКИ ПОД СТАТЬЕЙ */
.article-actions {
    display: flex;
    gap: 12px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.btn:hover {
    opacity: 1;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-secondary {
    background: var(--surface);
    color: var(--text);
}

.btn-primary {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.btn-primary:hover { background: var(--accent-hover); }

.btn-danger {
    background: white;
    color: var(--danger);
    border-color: var(--danger);
}

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

/* ФОРМЫ */
.form-container {
    max-width: 800px;
    margin: 64px auto;
    padding: 48px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.form-container h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 32px;
    text-align: center;
}

.form-group { margin-bottom: 24px; }

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 16px;
    font-family: var(--font-main);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    min-height: 180px;
    resize: vertical;
}

.btn-submit {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
}

.btn-submit:hover {
    background: var(--accent-hover);
}

/* СООБЩЕНИЯ */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 24px;
}

.alert-success {
    background: #f0fdf4;
    color: var(--success);
    border: 1px solid #bbf7d0;
}

.alert-error {
    background: #fef2f2;
    color: var(--danger);
    border: 1px solid #fecaca;
}

/* АДАПТИВ */
@media (max-width: 768px) {
    .header-inner {
        grid-template-columns: auto 1fr auto;
        gap: 16px;
    }
    
    .nav-left { display: none; }
    .logo-header img { height: 32px; }
    .search-form input { width: 100px; }
    
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .article-full h1 { font-size: 28px; }
    .article-actions { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
}