/* ============================================================================
   AXIOMICA ISLCS - UI COMPONENTS
   Переиспользуемые компоненты пользовательского интерфейса
   ============================================================================ */

/* ----------------------------------------------------------------------------
   КНОПКИ
   ---------------------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-bold);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: var(--line-height-tight);
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
    outline: none;
    gap: var(--spacing-sm);
}

.btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(17, 45, 70, 0.3);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    box-shadow: 0 2px 4px rgba(17, 45, 70, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(17, 45, 70, 0.3);
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--darker-blue) 100%);
    color: var(--white) !important;
}

.btn-secondary {
    background-color: var(--white);
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background-color: var(--gray-50);
    border-color: var(--gray-500);
}

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

.btn-danger:hover {
    background-color: #dc2626;
    transform: translateY(-2px);
}

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

.btn-success:hover {
    background-color: #059669;
    transform: translateY(-2px);
}

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

.btn-info:hover {
    background-color: #2563EB;
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-outline-secondary {
    background: transparent;
    color: var(--gray-600);
    border: 1px solid var(--gray-400);
}

.btn-outline-secondary:hover:not(:disabled) {
    background: var(--gray-100);
    border-color: var(--gray-500);
    color: var(--gray-700);
    transform: translateY(-1px);
}

.btn-sm .spinner-border {
    width: 0.75rem;
    height: 0.75rem;
    border-width: 1.5px;
    margin-right: 2px;
    vertical-align: middle;
}

/* Row error highlight */
.row-error td {
    background-color: var(--error-bg) !important;
}

tr.row-error:hover td {
    background-color: #fecaca !important;
}

.btn-sm {
    padding: 4px 12px;
    font-size: 0.75rem;
}

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

/* ----------------------------------------------------------------------------
   КАРТОЧКИ (WIDGETS)
   ---------------------------------------------------------------------------- */
.widget-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-200);
    transition: box-shadow var(--transition-normal);
}

.widget-card:hover {
    box-shadow: var(--shadow-md);
}

.widget-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.widget-title {
    font-family: var(--font-regular);
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.widget-value {
    font-family: var(--font-bold);
    font-size: 2rem;
    color: var(--primary-blue);
    line-height: var(--line-height-tight);
}

.widget-trend {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 9999px;
    margin-top: var(--spacing-xs);
}

.trend-positive {
    background-color: var(--success-bg);
    color: var(--success-color);
}

.trend-negative {
    background-color: var(--error-bg);
    color: var(--error-color);
}

/* ----------------------------------------------------------------------------
   ТАБЛИЦЫ ДАННЫХ
   ---------------------------------------------------------------------------- */
.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-family: var(--font-regular);
    font-size: 0.875rem;
}

.data-table th {
    background-color: var(--gray-50);
    color: var(--gray-700);
    font-weight: 600;
    text-align: left;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 2px solid var(--gray-200);
    white-space: nowrap;
}

.data-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-900);
    vertical-align: middle;
}

.data-table tr:hover td {
    background-color: var(--gray-50);
}

/* ----------------------------------------------------------------------------
   СТАТУСЫ И БЕЙДЖИ
   ---------------------------------------------------------------------------- */
.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-online {
    background-color: var(--success-bg);
    color: var(--success-color);
}

.status-offline {
    background-color: var(--gray-100);
    color: var(--gray-500);
}

.status-error {
    background-color: var(--error-bg);
    color: var(--error-color);
}

.status-maintenance {
    background-color: var(--warning-bg);
    color: var(--warning-color);
}

/* ----------------------------------------------------------------------------
   ФОРМЫ И ПОЛЯ ВВОДА
   ---------------------------------------------------------------------------- */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    font-family: var(--font-regular);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xs);
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-regular);
    font-size: 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(17, 45, 70, 0.1);
}

.form-input:disabled {
    background-color: var(--gray-100);
    cursor: not-allowed;
}

.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-regular);
    font-size: 0.875rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background-color: var(--white);
    cursor: pointer;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.form-range {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--gray-200);
    outline: none;
    -webkit-appearance: none;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--primary-blue);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.form-range::-webkit-slider-thumb:hover {
    background: var(--primary-blue-light);
}

/* ----------------------------------------------------------------------------
   УВЕДОМЛЕНИЯ (ALERTS)
   ---------------------------------------------------------------------------- */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-regular);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.alert-error {
    background-color: var(--error-bg);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.alert-warning {
    background-color: var(--warning-bg);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
}

.alert-info {
    background-color: var(--info-bg);
    color: var(--info-color);
    border: 1px solid var(--info-color);
}

/* ----------------------------------------------------------------------------
   НАВИГАЦИЯ
   ---------------------------------------------------------------------------- */
.nav-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-family: var(--font-regular);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--dark-blue);
}

.nav-link.active {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* ----------------------------------------------------------------------------
   МОДАЛЬНЫЕ ОКНА
   ---------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
}

.modal-body {
    padding: var(--spacing-lg);
}

/* ----------------------------------------------------------------------------
   АДАПТИВНОСТЬ
   ---------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .widget-grid {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}