/* Стили для админ-панели с поддержкой светлой и темной темы */

/* Современная тема для админки */
:root {
    --admin-bg-primary: #f8fafc;
    --admin-bg-secondary: #ffffff;
    --admin-bg-tertiary: #f1f5f9;
    
    --admin-text-primary: #0f172a;
    --admin-text-secondary: #475569;
    --admin-text-tertiary: #94a3b8;
    
    /* Акценты */
    --admin-accent-blue: #4f46e5;
    --admin-accent-blue-light: #6366f1;
    --admin-accent-blue-dark: #3730a3;
    --admin-accent-blue-muted: #eef2ff;
    
    --admin-accent-orange: #f97316;
    --admin-accent-orange-light: #fb923c;
    --admin-accent-orange-dark: #ea580c;
    --admin-accent-orange-muted: #fff7ed;
    
    --admin-border-color: #e2e8f0;
    --admin-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --admin-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* Темная тема */
[data-theme="dark"] {
    --admin-bg-primary: #020617;
    --admin-bg-secondary: #0f172a;
    --admin-bg-tertiary: #1e293b;
    
    --admin-text-primary: #f8fafc;
    --admin-text-secondary: #94a3b8;
    --admin-text-tertiary: #64748b;
    
    --admin-accent-blue: #818cf8;
    --admin-accent-blue-light: #a5b4fc;
    --admin-accent-blue-dark: #4f46e5;
    --admin-accent-blue-muted: #1e1b4b;
    
    --admin-accent-orange: #fb923c;
    --admin-accent-orange-light: #fdba74;
    --admin-accent-orange-dark: #f97316;
    --admin-accent-orange-muted: #431407;
    
    --admin-border-color: #1e293b;
}

.admin-body {
    background-color: var(--admin-bg-primary);
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    color: var(--admin-text-primary);
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s ease;
    margin: 0;
}

/* Global links styling */
a {
    color: var(--admin-accent-blue);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--admin-accent-blue-light);
    text-decoration: underline;
}

/* Layout structure */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.admin-sidebar {
    width: 260px;
    background-color: var(--admin-bg-secondary);
    border-right: 1px solid var(--admin-border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1000;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--admin-border-color);
}

.sidebar-header .admin-logo a {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--admin-accent-blue);
    text-decoration: none;
    letter-spacing: -0.025em;
}

.sidebar-nav {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--admin-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s;
    gap: 0.75rem;
}

.sidebar-nav-link:hover {
    color: var(--admin-accent-blue);
    background-color: var(--admin-bg-tertiary);
}

.sidebar-nav-link.active {
    color: var(--admin-accent-blue);
    background-color: var(--admin-accent-blue-muted);
    border-right: 3px solid var(--admin-accent-blue);
}

.admin-main-wrapper {
    flex: 1;
    margin-left: 260px;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Header updates */
.admin-header {
    background-color: var(--admin-bg-secondary);
    color: var(--admin-text-primary);
    padding: 0.75rem 2rem;
    box-shadow: var(--admin-shadow);
    border-bottom: 1px solid var(--admin-border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-header-content {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 1.5rem;
}

.admin-header .admin-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.admin-header .admin-nav-link {
    color: var(--admin-text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.875rem;
    transition: all 0.2s;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
}

.admin-header .admin-nav-link:hover {
    color: var(--admin-accent-blue);
    background-color: var(--admin-accent-blue-muted);
}

.admin-main {
    padding: 2rem;
    flex: 1;
}

/* Кнопка переключения темы */
.admin-theme-toggle {
    background: var(--admin-bg-tertiary);
    border: none;
    color: var(--admin-text-primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.admin-theme-toggle svg {
    color: var(--admin-text-primary);
    transition: transform 0.3s ease;
    display: none; /* Hide both by default */
}

[data-theme="light"] .sun-icon { display: block; }
[data-theme="dark"] .moon-icon { display: block; }

.admin-theme-toggle:hover svg {
    transform: rotate(15deg);
    color: var(--admin-accent-blue);
}

/* Admin section headers and common items */
.admin-section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 2rem;
    gap: 2rem;
}

.admin-section-header h1 {
    font-size: 1.875rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 0.5rem;
}

.admin-section-header p {
    color: var(--admin-text-secondary);
    font-size: 0.9375rem;
    max-width: 800px;
}

/* Cards */
.admin-card {
    background: var(--admin-bg-secondary);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border-color);
    margin-bottom: 2.5rem;
}

.admin-card h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--admin-text-primary);
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--admin-bg-secondary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--admin-shadow);
    border: 1px solid var(--admin-border-color);
    display: flex;
    flex-direction: column;
}

.stat-label {
    color: var(--admin-text-tertiary);
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--admin-accent-blue);
    line-height: 1;
}

/* Tables */
.table-responsive {
    margin: 0 -2rem;
    padding: 0 2rem;
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.admin-table th {
    background: var(--admin-bg-tertiary);
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--admin-text-tertiary);
    border-bottom: 1px solid var(--admin-border-color);
}

.admin-table th:first-child { border-top-left-radius: var(--radius-sm); }
.admin-table th:last-child { border-top-right-radius: var(--radius-sm); }

.admin-table td {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--admin-border-color);
    vertical-align: middle;
    color: var(--admin-text-primary);
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover td {
    background-color: var(--admin-bg-tertiary);
}

.active-row td {
    background-color: var(--admin-accent-blue-muted);
}

/* Buttons */
.admin-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    gap: 0.5rem;
}

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

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

.admin-btn-secondary {
    background: var(--admin-bg-tertiary);
    color: var(--admin-text-primary);
    border-color: var(--admin-border-color);
}

.admin-btn-secondary:hover {
    background: var(--admin-border-color);
}

.admin-btn-danger {
    background: #fee2e2;
    color: #dc2626;
}

.admin-btn-danger:hover {
    background: #fecaca;
    color: #b91c1c;
}

.admin-btn-success {
    background: #dcfce7;
    color: #15803d;
    border-color: #bbf7d0;
}

[data-theme="dark"] .admin-btn-success {
    background: #064e3b;
    color: #34d399;
    border-color: #065f46;
}

.admin-btn-success:hover {
    background: #bbf7d0;
}

[data-theme="dark"] .admin-btn-success:hover {
    background: #065f46;
}

.admin-btn-sm {
    padding: 0.375rem 0.625rem;
    font-size: 0.75rem;
}

.admin-btn-link {
    background: transparent;
    color: var(--admin-accent-blue);
    padding: 0;
}

.admin-btn-link:hover {
    text-decoration: underline;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--admin-text-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--admin-border-color);
    background: var(--admin-bg-primary);
    color: var(--admin-text-primary);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--admin-accent-blue);
    ring: 2px solid var(--admin-accent-blue-muted);
}

.checkbox-group.full-width {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem 2.5rem;
    padding: 1rem 1.25rem;
    background: var(--admin-bg-tertiary);
    border-radius: var(--radius-md);
    align-items: flex-start;
    margin-top: 0.5rem;
    border: 1px solid var(--admin-border-color);
}

.admin-checkbox-inline {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.25;
}

.admin-checkbox-inline input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin: 0;
    margin-top: 0.125rem;
    accent-color: var(--admin-accent-blue);
    cursor: pointer;
    flex-shrink: 0;
}

.form-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--admin-border-color);
}

/* Badges */
.badge {
    padding: 0.25rem 0.625rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge-success { background: #dcfce7; color: #15803d; }
[data-theme="dark"] .badge-success { background: #064e3b; color: #34d399; }

.badge-info { background: #e0f2fe; color: #0369a1; }
[data-theme="dark"] .badge-info { background: #0c4a6e; color: #38bdf8; }

.badge-warning { background: #fef3c7; color: #b45309; }
[data-theme="dark"] .badge-warning { background: #422006; color: #fbbf24; }

.badge-error { background: #fee2e2; color: #b91c1c; }
[data-theme="dark"] .badge-error { background: #450a0a; color: #f87171; }

.form-help {
    font-size: 0.8125rem;
    color: var(--admin-text-secondary);
    margin-top: 0.25rem;
}

/* Modals with theme support */
.modal {
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
}

.inline-form {
    display: inline-block;
    margin-left: 0.5rem;
}

[data-theme="dark"] .modal {
    background-color: rgba(0, 0, 0, 0.8);
}

.modal-content {
    background-color: var(--admin-bg-secondary);
    border: 1px solid var(--admin-border-color);
    border-radius: var(--radius-lg);
    width: 95%;
    max-width: 850px;
    box-shadow: var(--admin-shadow-md);
    color: var(--admin-text-primary);
    overflow: hidden;
    position: relative;
    margin: auto;
}

.modal-header {
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--admin-border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--admin-bg-tertiary);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 700;
}

.close {
    color: var(--admin-text-tertiary);
    font-size: 1.5rem;
    font-weight: 700;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
}

.close:hover {
    color: var(--admin-accent-blue);
}

.modal-content .form-grid {
    padding: 1.5rem 2rem;
    margin: 0;
    gap: 1.25rem 2rem;
}

.modal-content .checkbox-group.full-width {
    background: transparent;
    padding: 0.5rem 0;
    border: none;
    gap: 2rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pagination-link, .pagination-page, .pagination-ellipsis {
    height: 36px;
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.75rem;
    border-radius: var(--radius-md);
    background: var(--admin-bg-secondary);
    border: 1px solid var(--admin-border-color);
    color: var(--admin-text-primary);
    text-decoration: none !important;
    font-weight: 600;
    font-size: 0.8125rem;
    transition: all 0.2s;
}

.pagination-link:hover {
    background: var(--admin-bg-tertiary);
    border-color: var(--admin-accent-blue);
    color: var(--admin-accent-blue);
}

.pagination-current {
    background: var(--admin-accent-blue) !important;
    color: white !important;
    border-color: var(--admin-accent-blue) !important;
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--admin-text-secondary);
    margin: 0 1rem;
}

/* Login Page Styling */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background-color: var(--admin-bg-primary);
    transition: background-color 0.3s ease;
}

.login-box {
    background-color: var(--admin-bg-secondary);
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--admin-shadow-md);
    border: 1px solid var(--admin-border-color);
    width: 100%;
    max-width: 420px;
    text-align: center;
}

.login-box h1 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 2rem;
    letter-spacing: -0.025em;
    color: var(--admin-text-primary);
}

.login-box .form-group {
    text-align: left;
    margin-bottom: 1.5rem;
}

.login-box .admin-btn, 
.login-box .btn-primary {
    width: 100%;
    padding: 0.75rem;
    margin-top: 1rem;
    font-size: 0.9375rem;
}

.login-footer {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--admin-border-color);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.login-footer a {
    color: var(--admin-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s;
}

.login-footer a:hover {
    color: var(--admin-accent-blue);
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.alert-error {
    background-color: #fee2e2;
    color: #dc2626;
    border: 1px solid #fecaca;
}

[data-theme="dark"] .alert-error {
    background-color: #450a0a;
    color: #f87171;
    border-color: #7f1d1d;
}

/* Topics and info cards styles */
.topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.topic-card {
    background-color: var(--admin-bg-secondary);
    border: 1px solid var(--admin-border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: all 0.2s ease;
    box-shadow: var(--admin-shadow);
}

.topic-card:hover {
    box-shadow: var(--admin-shadow-md);
    border-color: var(--admin-accent-blue);
    transform: translateY(-2px);
}

.topic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.topic-value {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    background-color: var(--admin-bg-tertiary);
    padding: 0.25rem 0.625rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--admin-text-secondary);
    font-weight: 600;
}

.topic-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--admin-text-primary);
}

.info-panel {
    background-color: var(--admin-bg-tertiary);
    border: 1px solid var(--admin-border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-top: 2rem;
}

.info-panel h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    color: var(--admin-text-primary);
    font-size: 1.25rem;
    font-weight: 700;
}

.info-panel ol {
    margin: 0;
    padding-left: 1.5rem;
}

.info-panel li {
    margin-bottom: 0.75rem;
    line-height: 1.6;
    color: var(--admin-text-secondary);
}

.info-panel code {
    background-color: var(--admin-bg-primary);
    border: 1px solid var(--admin-border-color);
    padding: 0.2rem 0.4rem;
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    color: var(--admin-accent-orange);
}

.empty-state {
    padding: 4rem 2rem;
    text-align: center;
    background-color: var(--admin-bg-secondary);
    border: 2px dashed var(--admin-border-color);
    border-radius: var(--radius-lg);
    color: var(--admin-text-tertiary);
}

.category-select, .topic-select, .subscription-select, .duration-input {
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--admin-border-color);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    background-color: var(--admin-bg-primary);
    color: var(--admin-text-primary);
    transition: all 0.2s;
    font-family: inherit;
}

.category-select:focus, .topic-select:focus, .subscription-select:focus, .duration-input:focus {
    outline: none;
    border-color: var(--admin-accent-blue);
    box-shadow: 0 0 0 2px var(--admin-accent-blue-muted);
}

.source-link-cell {
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.source-link-cell a {
    word-break: break-all;
}

/* Responsive */
@media (max-width: 1024px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}