/**
 * MForm FlexRepeater – CSS
 * Modernes UI mit Bootstrap-Integration, Drag-and-Drop-Feedback und Dark-Mode-Support.
 */

/* ============================================================
   CSS-Variablen (Light-Mode Defaults)
   ============================================================ */
:root {
    --mfr-bg:              #fff;
    --mfr-bg-header:       #f8f9fa;
    --mfr-bg-header-hover: #eef0f2;
    --mfr-border:          #dee2e6;
    --mfr-border-radius:   6px;
    --mfr-shadow:          0 1px 4px rgba(0, 0, 0, .07);
    --mfr-shadow-hover:    0 3px 10px rgba(0, 0, 0, .12);
    --mfr-color-text:      #343a40;
    --mfr-color-muted:     #6c757d;
    --mfr-drag-handle:     #adb5bd;
    --mfr-drag-cursor:     grab;
    --mfr-ghost-bg:        rgba(0, 123, 255, .07);
    --mfr-ghost-border:    #007bff;
    --mfr-chosen-shadow:   0 6px 20px rgba(0, 0, 0, .18);
    --mfr-nested-bg:       #f8f9fa;
    --mfr-nested-border:   #e9ecef;
    --mfr-flash-bg:        rgba(56, 139, 253, .16);
    --mfr-flash-border:    rgba(56, 139, 253, .55);
    --mfr-disabled-bg:          #f5f5f5;
    --mfr-disabled-border:       #d0d0d0;
    --mfr-disabled-accent:       #9e9e9e;
    --mfr-disabled-text:         #888;
    --mfr-disabled-badge-bg:     #9e9e9e;
    --mfr-disabled-badge-text:   #fff;
    --mfr-disabled-body-opacity: 0.45;
    --mfr-active-accent:         #27ae60;
    --mfr-add-mt:          .75rem;
    --mfr-item-gap:        .75rem;
    --mfr-transition:      150ms ease;
}

/* ============================================================
   Dark-Mode – explizit (body.rex-theme-dark)
   ============================================================ */
body.rex-theme-dark {
    --mfr-bg:              #2c2f33;
    --mfr-bg-header:       #23272a;
    --mfr-bg-header-hover: #1e2124;
    --mfr-border:          #444;
    --mfr-color-text:      #ddd;
    --mfr-color-muted:     #999;
    --mfr-drag-handle:     #777;
    --mfr-ghost-bg:        rgba(66, 135, 245, .12);
    --mfr-ghost-border:    #4287f5;
    --mfr-nested-bg:       #25282b;
    --mfr-nested-border:   #3a3d40;
    --mfr-flash-bg:        rgba(72, 166, 255, .20);
    --mfr-flash-border:    rgba(72, 166, 255, .62);
    --mfr-disabled-bg:          #2a2a2a;
    --mfr-disabled-border:       #555;
    --mfr-disabled-accent:       #777;
    --mfr-disabled-text:         #888;
    --mfr-disabled-badge-bg:     #666;
    --mfr-disabled-badge-text:   #fff;
    --mfr-disabled-body-opacity: 0.4;
    --mfr-active-accent:         #2ecc71;
    --mfr-shadow:          0 1px 4px rgba(0, 0, 0, .35);
    --mfr-shadow-hover:    0 3px 10px rgba(0, 0, 0, .5);
}

/* Auto Dark-Mode (Systemeinstellung) */
@media (prefers-color-scheme: dark) {
    body.rex-has-theme:not(.rex-theme-light) {
        --mfr-bg:              #2c2f33;
        --mfr-bg-header:       #23272a;
        --mfr-bg-header-hover: #1e2124;
        --mfr-border:          #444;
        --mfr-color-text:      #ddd;
        --mfr-color-muted:     #999;
        --mfr-drag-handle:     #777;
        --mfr-ghost-bg:        rgba(66, 135, 245, .12);
        --mfr-ghost-border:    #4287f5;
        --mfr-nested-bg:       #25282b;
        --mfr-nested-border:   #3a3d40;
        --mfr-flash-bg:        rgba(72, 166, 255, .20);
        --mfr-flash-border:    rgba(72, 166, 255, .62);
        --mfr-disabled-bg:          #2a2a2a;
        --mfr-disabled-border:       #555;
        --mfr-disabled-accent:       #777;
        --mfr-disabled-text:         #888;
        --mfr-disabled-badge-bg:     #666;
        --mfr-disabled-badge-text:   #fff;
        --mfr-disabled-body-opacity: 0.4;
        --mfr-active-accent:         #2ecc71;
        --mfr-shadow:          0 1px 4px rgba(0, 0, 0, .35);
        --mfr-shadow-hover:    0 3px 10px rgba(0, 0, 0, .5);
    }
}

/* ============================================================
   Container
   ============================================================ */
.mfr-container {
    position: relative;
}

.mfr-label {
    display: block;
    margin-bottom: .5rem;
    font-weight: 600;
    color: var(--mfr-color-text);
}

/* ============================================================
   Items-Liste
   ============================================================ */
.mfr-items-list {
    display: flex;
    flex-direction: column;
    gap: var(--mfr-item-gap);
    min-height: 0;
}

.mfr-toolbar {
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-top: var(--mfr-add-mt);
}

.mfr-toolbar .btn-group {
    flex-shrink: 0;
}

.mfr-toolbar-top {
    margin-top: 0;
    margin-bottom: .55rem;
}

.mfr-toolbar-bottom {
    margin-top: var(--mfr-add-mt);
}

.mfr-toolbar .mfr-btn-add {
    margin-top: 0;
}

/* ============================================================
   Einzelnes Item
   ============================================================ */
.mfr-item {
    background: var(--mfr-bg);
    border: 1px solid var(--mfr-border);
    border-left: 4px solid var(--mfr-active-accent);
    border-radius: var(--mfr-border-radius);
    box-shadow: var(--mfr-shadow);
    transition: box-shadow var(--mfr-transition), border-color var(--mfr-transition);
    overflow: hidden;
}

.mfr-item:hover {
    box-shadow: var(--mfr-shadow-hover);
}

.mfr-item.mfr-item-disabled {
    border-style: solid;
    border-color: var(--mfr-disabled-border);
    border-left: 4px solid var(--mfr-disabled-accent);
    background: var(--mfr-disabled-bg);
}

.mfr-item.mfr-item-disabled .mfr-item-header {
    background: var(--mfr-bg-header);
}

.mfr-item.mfr-item-disabled .mfr-item-title {
    color: var(--mfr-disabled-text);
    font-style: italic;
}

/* Status-Punkt im Header (grün = online, rot = offline) */
.mfr-status-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: .5em;
    flex-shrink: 0;
    vertical-align: middle;
    position: relative;
    top: -1px;
}

.mfr-status-dot--online {
    background: var(--mfr-active-accent);
    box-shadow: 0 0 0 2px rgba(39, 174, 96, .25);
}

.mfr-status-dot--offline {
    background: #e74c3c;
    box-shadow: 0 0 0 2px rgba(231, 76, 60, .25);
}

@keyframes mfrFlashIn {
    0% {
        background-color: var(--mfr-flash-bg);
        border-color: var(--mfr-flash-border);
    }
    100% {
        background-color: var(--mfr-bg);
        border-color: var(--mfr-border);
    }
}

.mfr-item.mfr-item-flash,
.mfr-nested-item.mfr-item-flash {
    animation: mfrFlashIn .9s ease-out;
}

@keyframes mfrDeleteOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(.985);
    }
}

.mfr-item.mfr-item-removing,
.mfr-nested-item.mfr-item-removing {
    animation: mfrDeleteOut .18s ease-in forwards;
    pointer-events: none;
}

.mfr-item + .mfr-item {
    margin-top: .15rem;
}

/* --- Header --- */
.mfr-item-header {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .6rem .85rem;
    background: var(--mfr-bg-header);
    border-bottom: 1px solid var(--mfr-border);
    cursor: default;
    user-select: none;
    min-height: 44px;
    transition: background var(--mfr-transition);
}

.mfr-item-header:hover {
    background: var(--mfr-bg-header-hover);
}

/* Drag-Handle */
.mfr-item-drag {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--mfr-drag-handle);
    cursor: var(--mfr-drag-cursor);
    font-size: 14px;
    padding: 2px 4px;
    border-radius: 3px;
    transition: color var(--mfr-transition);
    flex-shrink: 0;
}

.mfr-item-drag:hover {
    color: var(--mfr-color-text);
}

.mfr-item-drag:active {
    cursor: grabbing;
}

/* Titel */
.mfr-item-title {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    color: var(--mfr-color-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Aktions-Buttons */
.mfr-item-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.mfr-item-actions .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 30px;
    min-height: 26px;
    padding: 3px 8px;
    font-size: 12px;
    line-height: 1;
    border-radius: 4px;
    transition: opacity var(--mfr-transition);
}

/* --- Body --- */
.mfr-item-body {
    padding: 1.6rem 1.9rem 1.6rem;
}

.mfr-item-body .form-group:last-child {
    margin-bottom: 0;
}

/* ============================================================
   "Hinzufügen"-Button
   ============================================================ */
.mfr-btn-add {
    margin-top: var(--mfr-add-mt);
}

/* ============================================================
   Drag-and-Drop-Zustände (SortableJS)
   ============================================================ */
.mfr-item-ghost {
    opacity: .4;
    background: var(--mfr-ghost-bg) !important;
    border: 2px dashed var(--mfr-ghost-border) !important;
    box-shadow: none !important;
}

.mfr-item-chosen {
    box-shadow: var(--mfr-chosen-shadow) !important;
}

.mfr-item-dragging {
    opacity: .95;
    box-shadow: var(--mfr-chosen-shadow) !important;
}

/* ============================================================
   Nested Repeater (Level 2)
   ============================================================ */
.mfr-nested-repeater {
    background: var(--mfr-nested-bg);
    border: 1px solid var(--mfr-nested-border);
    border-radius: var(--mfr-border-radius);
    padding: .85rem;
    margin-top: .65rem;
}

.mfr-nested-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--mfr-color-muted);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: .5rem;
}

.mfr-nested-items {
    display: flex;
    flex-direction: column;
    gap: .45rem;
    margin-bottom: .6rem;
}

.mfr-nested-item {
    background: var(--mfr-bg);
    border: 1px solid var(--mfr-border);
    border-radius: 4px;
    overflow: hidden;
}

.mfr-nested-header {
    display: flex;
    align-items: center;
    gap: .4rem;
    padding: .45rem .65rem;
    background: var(--mfr-bg-header);
    border-bottom: 1px solid var(--mfr-border);
    cursor: default;
    user-select: none;
    min-height: 36px;
}

.mfr-nested-drag {
    color: var(--mfr-drag-handle);
    cursor: var(--mfr-drag-cursor);
    font-size: 12px;
    flex-shrink: 0;
}

.mfr-nested-title {
    flex: 1;
    font-size: 12px;
    color: var(--mfr-color-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mfr-nested-actions {
    display: flex;
    gap: 3px;
    flex-shrink: 0;
}

.mfr-nested-actions .btn {
    min-width: 28px;
    min-height: 24px;
    padding: 2px 7px;
}

.mfr-nested-body {
    padding: .8rem .9rem .9rem;
}

.mfr-nested-body .form-group:last-child {
    margin-bottom: 0;
}

.mfr-btn-add-nested {
    margin-top: .4rem;
}

.mfr-btn-add-after,
.mfr-btn-nested-add-after {
    color: #2a7f45;
}

.mfr-btn-add-after:hover,
.mfr-btn-nested-add-after:hover {
    color: #1f6135;
}

/* Copy button */
.mfr-btn-copy {
    color: #5b8fc7;
}

.mfr-btn-copy:hover {
    color: #3a6ea8;
}

.mfr-btn-copy-active {
    color: #fff !important;
    background-color: #5b8fc7 !important;
    border-color: #3a6ea8 !important;
}

/* Paste button in toolbar – margin handled by btn-group */

/* Dark mode copy button */
body.rex-theme-dark .mfr-btn-copy {
    color: #7fb3e8;
}

@media (prefers-color-scheme: dark) {
    body.rex-has-theme:not(.rex-theme-light) .mfr-btn-copy {
        color: #7fb3e8;
    }
}

/* Nested Drag-Feedback */
.mfr-nested-items .mfr-item-ghost {
    opacity: .35;
}

/* ============================================================
   Template-spezifische Elemente im Item-Body
   ============================================================ */
.mfr-template-headline h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--mfr-color-muted);
    text-transform: uppercase;
    letter-spacing: .04em;
    margin: .75rem 0 .25rem;
    padding-bottom: .25rem;
    border-bottom: 1px solid var(--mfr-border);
}

.mfr-template-description p {
    font-size: 12px;
    color: var(--mfr-color-muted);
    margin-bottom: .4rem;
}

/* ============================================================
   Feldgruppen im Repeater
   ============================================================ */
.mfr-field-group {
    margin-bottom: .75rem;
}

/* ============================================================
   Zugeklappt-Zustand: sanfte Transition
   ============================================================ */
.mfr-item-body,
.mfr-nested-body {
    transition: none; /* overflow-Hack für einfaches show/hide */
}

/* ============================================================
   Leer-Zustand (keine Items)
   ============================================================ */
.mfr-items-list:empty::after {
    content: attr(data-empty-text);
    display: block;
    text-align: center;
    padding: 1.5rem;
    font-size: 13px;
    color: var(--mfr-color-muted);
    border: 2px dashed var(--mfr-border);
    border-radius: var(--mfr-border-radius);
}

/* ============================================================
   Responsive: auf kleinen Screens Buttons in Menü kollabieren
   ============================================================ */
@media (max-width: 480px) {
    .mfr-item-actions .btn-xs {
        padding: 2px 5px;
    }
    .mfr-item-title {
        max-width: 120px;
    }
}