/**
 * Nimbus Custom Styles
 * 
 * Custom CSS overrides for Nimbus application.
 * Uses only CSS variables from Materio - NO hardcoded colors.
 * 
 * Load order: Materio CSS → nimbus-custom.css
 */

/* ============================================
   ROOT VARIABLES - Nimbus Branding
   ============================================ */
:root {
    /* Nimbus Brand Colors (optional overrides of Materio defaults) */
    /* Uncomment and adjust if you want custom brand colors */
    /* --bs-primary: #6571ff; */
    /* --bs-primary-rgb: 101, 113, 255; */
    
    /* Nimbus-specific spacing */
    --nimbus-card-spacing: 1.5rem;
    --nimbus-section-spacing: 2rem;
    --nimbus-header-height: 70px;
}

/* ============================================
   LAYOUT
   ============================================ */

/* Main content wrapper */
.nimbus-content {
    padding: var(--nimbus-section-spacing);
    min-height: calc(100vh - var(--nimbus-header-height));
}

/* Page header */
.nimbus-page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--nimbus-section-spacing);
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--bs-border-color);
}

.nimbus-page-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--bs-heading-color);
    margin: 0;
}

.nimbus-page-actions {
    display: flex;
    gap: 0.75rem;
}

/* ============================================
   CARDS
   ============================================ */

.nimbus-card {
    background-color: var(--bs-card-bg);
    border: 1px solid var(--bs-card-border-color);
    border-radius: var(--bs-card-border-radius);
    box-shadow: var(--bs-card-box-shadow);
    margin-bottom: var(--nimbus-card-spacing);
}

.nimbus-card-header {
    padding: var(--nimbus-card-spacing);
    border-bottom: 1px solid var(--bs-border-color);
    background-color: var(--bs-card-cap-bg);
}

.nimbus-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--bs-heading-color);
    margin: 0;
}

.nimbus-card-body {
    padding: var(--nimbus-card-spacing);
}

.nimbus-card-footer {
    padding: var(--nimbus-card-spacing);
    border-top: 1px solid var(--bs-border-color);
    background-color: var(--bs-card-cap-bg);
}

/* ============================================
   TABLES
   ============================================ */

.nimbus-table {
    width: 100%;
    margin-bottom: 0;
}

.nimbus-table thead th {
    background-color: var(--bs-table-bg);
    color: var(--bs-table-color);
    border-bottom: 2px solid var(--bs-border-color);
    font-weight: 600;
    padding: 0.875rem 1rem;
}

.nimbus-table tbody td {
    padding: 0.875rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--bs-border-color);
}

.nimbus-table tbody tr:hover {
    background-color: var(--bs-table-hover-bg);
}

/* Table actions column */
.nimbus-table-actions {
    text-align: right;
    white-space: nowrap;
}

.nimbus-table-actions .btn {
    margin-left: 0.5rem;
}

/* ============================================
   FORMS
   ============================================ */

.nimbus-form-group {
    margin-bottom: 1.25rem;
}

.nimbus-form-label {
    display: block;
    font-weight: 500;
    color: var(--bs-body-color);
    margin-bottom: 0.5rem;
}

.nimbus-form-label.required::after {
    content: ' *';
    color: var(--bs-danger);
}

.nimbus-form-control {
    display: block;
    width: 100%;
    padding: 0.5rem 0.875rem;
    font-size: 1rem;
    color: var(--bs-body-color);
    background-color: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.nimbus-form-control:focus {
    border-color: var(--bs-primary);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.25);
}

.nimbus-form-control.is-invalid {
    border-color: var(--bs-danger);
}

.nimbus-form-text {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--bs-secondary-color);
}

.nimbus-invalid-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--bs-danger);
}

/* ============================================
   BADGES & PILLS
   ============================================ */

.nimbus-badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--bs-border-radius);
}

/* Risk severity badges */
.nimbus-badge-critical {
    background-color: var(--bs-danger);
    color: #fff;
}

.nimbus-badge-high {
    background-color: var(--bs-warning);
    color: #000;
}

.nimbus-badge-medium {
    background-color: var(--bs-info);
    color: #fff;
}

.nimbus-badge-low {
    background-color: var(--bs-success);
    color: #fff;
}

.nimbus-badge-minimal {
    background-color: var(--bs-secondary);
    color: #fff;
}

/* ============================================
   RISK REGISTER SPECIFIC
   ============================================ */

/* Risk score visual indicator */
.nimbus-risk-score {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    font-size: 1.25rem;
    font-weight: 700;
    border-radius: 50%;
    color: #fff;
}

.nimbus-risk-score.critical {
    background-color: var(--bs-danger);
}

.nimbus-risk-score.high {
    background-color: var(--bs-warning);
    color: #000;
}

.nimbus-risk-score.medium {
    background-color: var(--bs-info);
}

.nimbus-risk-score.low {
    background-color: var(--bs-success);
}

.nimbus-risk-score.minimal {
    background-color: var(--bs-secondary);
}

/* Risk matrix */
.nimbus-risk-matrix {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem;
    margin: 1rem 0;
}

.nimbus-risk-matrix-cell {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--bs-border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s;
}

.nimbus-risk-matrix-cell:hover {
    transform: scale(1.05);
}

/* ============================================
   FIELD CONFIGURATION
   ============================================ */

.nimbus-field-card {
    background-color: var(--bs-card-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: var(--bs-border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
    cursor: move;
}

.nimbus-field-card.active {
    border-color: var(--bs-primary);
    background-color: rgba(var(--bs-primary-rgb), 0.05);
}

.nimbus-field-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.nimbus-field-toggle {
    cursor: pointer;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.nimbus-text-muted {
    color: var(--bs-secondary-color) !important;
}

.nimbus-text-primary {
    color: var(--bs-primary) !important;
}

.nimbus-text-danger {
    color: var(--bs-danger) !important;
}

.nimbus-text-success {
    color: var(--bs-success) !important;
}

.nimbus-bg-light {
    background-color: var(--bs-light) !important;
}

.nimbus-border {
    border: 1px solid var(--bs-border-color) !important;
}

.nimbus-rounded {
    border-radius: var(--bs-border-radius) !important;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .nimbus-page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .nimbus-page-actions {
        margin-top: 1rem;
        width: 100%;
    }

    .nimbus-table-actions .btn {
        padding: 0.25rem 0.5rem;
        font-size: 0.875rem;
    }
}

/* ============================================
   LOADING STATES
   ============================================ */

.nimbus-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    color: var(--bs-secondary-color);
}

.nimbus-spinner {
    border: 3px solid var(--bs-border-color);
    border-top-color: var(--bs-primary);
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ============================================
   EMPTY STATES
   ============================================ */

.nimbus-empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--bs-secondary-color);
}

.nimbus-empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--bs-border-color);
}

.nimbus-empty-state-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--bs-heading-color);
}

.nimbus-empty-state-text {
    margin-bottom: 1.5rem;
}