/*
 * admin-ui.css
 * Общие UI компоненты для административной панели
 * (Cards, Tables, Buttons, Badges, Forms, etc.)
 */

/* ============================================================
   PAGE LAYOUT
   ============================================================ */
.admin-page-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 24px;
}

.admin-page-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--admin-text-primary);
    margin: 0;
}

.admin-page-subtitle {
    font-size: 0.875rem;
    color: var(--admin-text-secondary);
    margin: 4px 0 0 0;
}

/* ============================================================
   CARDS
   ============================================================ */
.admin-card {
    background-color: var(--admin-bg-paper);
    border-radius: var(--admin-radius-xl);
    box-shadow: var(--admin-shadow-xs);
    border: 1px solid var(--admin-border);
    padding: 20px;
}

.admin-card-header {
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--admin-border);
}

.admin-card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--admin-text-primary);
    margin: 0 0 4px 0;
}

.admin-card-subtitle {
    font-size: 0.875rem;
    color: var(--admin-text-secondary);
    margin: 0;
}

/* ============================================================
   STATS CARDS
   ============================================================ */
.admin-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.admin-stat-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px;
}

.admin-stat-label {
    font-size: 0.875rem;
    color: var(--admin-text-secondary);
    font-weight: 500;
}

.admin-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--admin-text-primary);
    font-family: var(--admin-heading);
}

.admin-stat-change {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--admin-text-secondary);
}

.admin-stat-change.admin-stat-positive {
    color: var(--admin-success);
}

.admin-stat-change.admin-stat-negative {
    color: var(--admin-error);
}

/* ============================================================
   TABLES
   ============================================================ */
.admin-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -20px;
    padding: 0 20px;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.admin-table thead {
    background-color: var(--admin-grey-25);
}

.admin-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--admin-text-primary);
    border-bottom: 2px solid var(--admin-border);
    white-space: nowrap;
}

.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--admin-border);
    color: var(--admin-text);
}

.admin-table tbody tr:hover {
    background-color: var(--admin-grey-25);
}

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

/* ============================================================
   BADGES
   ============================================================ */
.admin-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 999px;
    line-height: 1;
}

.admin-badge-primary {
    background-color: var(--admin-accent-bg);
    color: var(--admin-accent);
}

.admin-badge-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--admin-success);
}

.admin-badge-warning {
    background-color: rgba(251, 191, 36, 0.1);
    color: var(--admin-warning);
}

.admin-badge-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--admin-error);
}

.admin-badge-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--admin-info);
}

.admin-badge-secondary {
    background-color: var(--admin-grey-100);
    color: var(--admin-text-secondary);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.admin-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: var(--admin-sans);
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    white-space: nowrap;
    border: 1px solid transparent;
    border-radius: var(--admin-radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
}

.admin-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.admin-btn-primary:hover:not(:disabled) {
    background-color: var(--admin-primary-dark);
    border-color: var(--admin-primary-dark);
    text-decoration: none;
    color: white;
}

.admin-btn-secondary {
    color: var(--admin-text-primary);
    background-color: var(--admin-grey-100);
    border-color: var(--admin-grey-100);
}

.admin-btn-secondary:hover:not(:disabled) {
    background-color: var(--admin-grey-200);
    border-color: var(--admin-grey-200);
    text-decoration: none;
}

.admin-btn-ghost {
    color: var(--admin-accent);
    background-color: transparent;
    border-color: var(--admin-border);
}

.admin-btn-ghost:hover:not(:disabled) {
    background-color: var(--admin-accent-bg);
    border-color: var(--admin-accent);
    text-decoration: none;
}

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

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

/* Button Sizes */
.admin-btn-sm {
    padding: 6px 12px;
    font-size: 0.8125rem;
}

.admin-btn-lg {
    padding: 12px 24px;
    font-size: 1rem;
}

/* ============================================================
   FORMS
   ============================================================ */
.admin-form-group {
    margin-bottom: 16px;
}

.admin-form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--admin-text-primary);
}

.admin-form-control {
    display: block;
    width: 100%;
    padding: 10px 12px;
    font-family: var(--admin-sans);
    font-size: 0.875rem;
    line-height: 1.5;
    color: var(--admin-text-primary);
    background-color: var(--admin-bg-paper);
    border: 1px solid var(--admin-border);
    border-radius: var(--admin-radius-sm);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.admin-form-control-sm {
    padding: 6px 10px;
    font-size: 0.8125rem;
}

.admin-form-control:focus {
    outline: 0;
    border-color: var(--admin-accent);
    box-shadow: 0 0 0 3px var(--admin-accent-bg);
}

.admin-form-control:disabled {
    background-color: var(--admin-grey-25);
    cursor: not-allowed;
    opacity: 0.6;
}

textarea.admin-form-control {
    resize: vertical;
    min-height: 100px;
}

.admin-form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 16px 12px;
    padding-right: 40px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.admin-form-help {
    margin-top: 4px;
    font-size: 0.8125rem;
    color: var(--admin-text-secondary);
}

.admin-form-error {
    margin-top: 4px;
    font-size: 0.8125rem;
    color: var(--admin-error);
}

/* ============================================================
   EMPTY STATE
   ============================================================ */
.admin-empty-state {
    padding: 48px 24px;
    text-align: center;
    color: var(--admin-text-secondary);
}

.admin-empty-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

.admin-empty-text {
    font-size: 1rem;
    font-weight: 500;
    color: var(--admin-text-secondary);
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.admin-dropdown-divider {
    height: 1px;
    background-color: var(--admin-border);
    margin: 8px 0;
}

.admin-text-primary { color: var(--admin-text-primary); }
.admin-text-secondary { color: var(--admin-text-secondary); }
.admin-text-disabled { color: var(--admin-text-disabled); }
.admin-text-success { color: var(--admin-success); }
.admin-text-error { color: var(--admin-error); }
.admin-text-warning { color: var(--admin-warning); }
.admin-text-info { color: var(--admin-info); }

.admin-text-sm { font-size: 0.875rem; }
.admin-text-xs { font-size: 0.8125rem; }
.admin-text-lg { font-size: 1.125rem; }
.admin-text-xl { font-size: 1.25rem; }

.admin-font-semibold { font-weight: 600; }
.admin-font-bold { font-weight: 700; }

.admin-d-flex { display: flex; }
.admin-d-grid { display: grid; }
.admin-d-none { display: none; }

.admin-align-items-center { align-items: center; }
.admin-justify-content-between { justify-content: space-between; }
.admin-gap-sm { gap: 8px; }
.admin-gap-md { gap: 16px; }
.admin-gap-lg { gap: 24px; }

.admin-mb-0 { margin-bottom: 0; }
.admin-mb-sm { margin-bottom: 8px; }
.admin-mb-md { margin-bottom: 16px; }
.admin-mb-lg { margin-bottom: 24px; }
.admin-mb-xl { margin-bottom: 32px; }

.admin-mt-md { margin-top: 16px; }
.admin-mt-lg { margin-top: 24px; }

.admin-p-sm { padding: 8px; }
.admin-p-md { padding: 16px; }
.admin-p-lg { padding: 24px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
    .admin-page-header {
        flex-direction: column;
        gap: 16px;
    }

    .admin-stats-grid {
        grid-template-columns: 1fr;
    }

    .admin-table-wrapper {
        margin: 0 -8px;
        padding: 0 8px;
    }
}