/* --------------------------------------------------------------------------
Local-First Sitzplan Editor: Pure CSS, keine externen Fonts / CDNs
-------------------------------------------------------------------------- */

:root, [data-theme="light"] {
    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --bg-color: #f6f8fa;
    --surface-color: #ffffff;
    --border-color: #d0d7de;
    --border-focus: #0969da;
    --text-main: #1f2328;
    --text-muted: #656d76;
    --primary: #0969da;
    --primary-hover: #0550ae;
    --danger: #cf222e;
    --danger-hover: #a40e26;
    --grid-size: 20px;
    --grid-line: rgba(0, 0, 0, 0.06);

    /* Dynamische Komponentenfarben */
    --canvas-bg: #f1f3f5;
    --desk-bg: #fdf6ec;
    --desk-border: #d4a373;
    --seat-bg: rgba(255, 255, 255, 0.7);
    --seat-bg-occupied: #ffffff;
    --seat-border: #b08968;
    --seat-border-occupied: #a0a0a0;
    --seat-text: #1f2328;
    --btn-sec-bg: #f3f4f6;
    --btn-sec-hover: #e5e7eb;
    --input-bg: #ffffff;
    --input-border: #d0d7de;
    --pool-bg: #fafafa;
    --tool-btn-bg: #f8fafc;
    --tool-btn-hover: #eef2f6;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

/* 🌙 THEME 2: DARK MODE (Mitternacht - modern & augenschonend) */
[data-theme="dark"] {
    --bg-color: #0b0f19;
    --surface-color: #131b2e;
    --border-color: #26334d;
    --border-focus: #818cf8;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --danger: #f43f5e;
    --danger-hover: #e11d48;
    --grid-line: rgba(255, 255, 255, 0.07);

    --canvas-bg: #090d16;
    --desk-bg: #1e293b;
    --desk-border: #475569;
    --seat-bg: rgba(15, 23, 42, 0.65);
    --seat-bg-occupied: #1e293b;
    --seat-border: #475569;
    --seat-border-occupied: #64748b;
    --seat-text: #f8fafc;
    --btn-sec-bg: #1e293b;
    --btn-sec-hover: #334155;
    --input-bg: #0f172a;
    --input-border: #334155;
    --pool-bg: #0f172a;
    --tool-btn-bg: #1a253c;
    --tool-btn-hover: #263554;
    --card-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
}

/* 📜 THEME 3: PERGAMENT (Warm, sanft & augenfreundlich) */
[data-theme="sepia"] {
    --bg-color: #f5efe6;
    --surface-color: #fdfbf7;
    --border-color: #dfd2c0;
    --border-focus: #9a481c;
    --text-main: #33261d;
    --text-muted: #7d6b5c;
    --primary: #9a481c;
    --primary-hover: #7c3713;
    --danger: #b91c1c;
    --danger-hover: #991b1b;
    --grid-line: rgba(120, 80, 40, 0.09);

    --canvas-bg: #eae1d2;
    --desk-bg: #f5ebd8;
    --desk-border: #c49a6c;
    --seat-bg: rgba(253, 251, 247, 0.75);
    --seat-bg-occupied: #fffdf9;
    --seat-border: #b89d85;
    --seat-border-occupied: #967d66;
    --seat-text: #33261d;
    --btn-sec-bg: #ebdccb;
    --btn-sec-hover: #dfceba;
    --input-bg: #fffdfa;
    --input-border: #d4c4b0;
    --pool-bg: #f4ede4;
    --tool-btn-bg: #f5ece0;
    --tool-btn-hover: #e8ddcd;
    --card-shadow: 0 10px 30px rgba(46, 36, 28, 0.15);
}

/* 🏫 THEME 4: SCHULTAFEL (Klassische Kreidetafel-Atmosphäre) */
[data-theme="chalkboard"] {
    --bg-color: #0d1a13;
    --surface-color: #15291e;
    --border-color: #244432;
    --border-focus: #34d399;
    --text-main: #f0fdf4;
    --text-muted: #9fccaa;
    --primary: #10b981;
    --primary-hover: #059669;
    --danger: #f87171;
    --danger-hover: #ef4444;
    --grid-line: rgba(255, 255, 255, 0.08);

    --canvas-bg: #102117;
    --desk-bg: #1c3527;
    --desk-border: #3fa876;
    --seat-bg: rgba(16, 33, 23, 0.65);
    --seat-bg-occupied: #234331;
    --seat-border: #427c59;
    --seat-border-occupied: #86efac;
    --seat-text: #f0fdf4;
    --btn-sec-bg: #1e392a;
    --btn-sec-hover: #294d39;
    --input-bg: #0d1a13;
    --input-border: #2c523d;
    --pool-bg: #0d1912;
    --tool-btn-bg: #1a3325;
    --tool-btn-hover: #244633;
    --card-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-stack);
    background: var(--bg-color);
    color: var(--text-main);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header */
.app-header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-shrink: 0;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.badge-local {
    font-size: 0.75rem;
    font-weight: 600;
    background: #dafbe1;
    color: #1a7f37;
    padding: 3px 8px;
    border-radius: 12px;
    border: 1px solid rgba(26, 127, 55, 0.2);
}

.header-center {
    display: flex;
    align-items: center;
    gap: 14px;
}

.plan-manager-box {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--btn-sec-bg);
    padding: 3px 6px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.plan-select {
    padding: 5px 8px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    font-family: inherit;
    background: var(--surface-color);
    color: var(--text-main);
    cursor: pointer;
    min-width: 140px;
    max-width: 220px;
}

.btn-mini-action {
    padding: 4px 7px;
    font-size: 0.75rem;
    border-radius: 4px;
    cursor: pointer;
    line-height: 1;
}

.header-inputs {
    display: flex;
    gap: 8px;
}

.header-inputs input {
    padding: 6px 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text-main);
    width: 140px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* Theme Switcher */
.theme-switch-group {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--btn-sec-bg);
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.theme-icon {
    font-size: 0.9rem;
    cursor: default;
    user-select: none;
}

.theme-select {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-size: 0.82rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    padding: 3px 0;
}

.theme-select option {
    background: var(--surface-color);
    color: var(--text-main);
}

.btn-audio-header {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Buttons */
.btn {
    padding: 6px 12px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    font-family: inherit;
}

.btn-primary {
    background: var(--primary);
    color: #ffffff;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--btn-sec-bg);
    border-color: var(--border-color);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: var(--btn-sec-hover);
}

.btn-outline {
    border-color: var(--border-color);
    background: transparent;
    color: var(--text-main);
}

.btn-outline:hover {
    background: var(--btn-sec-bg);
}

.btn-outline-danger {
    border-color: var(--danger);
    background: transparent;
    color: var(--danger);
}

.btn-outline-danger:hover {
    background: #ffebe9;
}

.btn-danger-outline {
    border-color: var(--border-color);
    color: var(--danger);
    background: transparent;
}

.btn-danger-outline:hover {
    border-color: var(--danger);
    background: #ffebe9;
}

.btn-mini {
    padding: 2px 6px;
    font-size: 0.75rem;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    border-radius: 4px;
    cursor: pointer;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.8rem;
    background: var(--primary);
    color: #fff;
}

/* Hauptbereich */
.main-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar-left {
    width: 320px;
    background: var(--surface-color);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.panel {
    padding: 14px;
    border-bottom: 1px solid var(--border-color);
}

.panel.flex-grow {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.panel-header-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.panel-title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    font-weight: 700;
}

.panel-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.toolbox-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.btn-tool {
    background: var(--tool-btn-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 6px;
    font-size: 0.8rem;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-tool:hover {
    background: var(--tool-btn-hover);
}

/* Farblegende */
.color-legend-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 140px;
    overflow-y: auto;
}

.color-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
}

.color-dot-picker {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    padding: 0;
}

.color-legend-input {
    flex: 1;
    padding: 3px 6px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text-main);
}

.btn-legend-del {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-weight: bold;
    cursor: pointer;
    padding: 0 4px;
}

.btn-legend-del:hover {
    color: var(--danger);
}

/* Schülerpool */
.student-input-row {
    display: flex;
    gap: 6px;
    margin-bottom: 10px;
}

.student-input-row input {
    flex: 1;
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.85rem;
    font-family: inherit;
    background: var(--input-bg);
    color: var(--text-main);
}

.student-pool {
    flex: 1;
    overflow-y: auto;
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    padding: 8px;
    background: var(--pool-bg);
    display: flex;
    flex-wrap: wrap;
    align-content: flex-start;
    gap: 6px;
    transition: all 0.15s ease;
}

.student-pool.drag-over {
    background: #fef2f2;
    border-color: var(--danger);
    box-shadow: inset 0 0 8px rgba(207, 34, 46, 0.15);
}

.student-chip {
    background: var(--surface-color);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 5px 11px;
    font-size: 0.8rem;
    cursor: grab;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    user-select: none;
    transition: transform 0.1s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.student-chip:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

.student-chip:active {
    cursor: grabbing;
}

.student-chip.is-dragging {
    opacity: 0.35;
    transform: scale(0.95);
}

.chip-tag-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

/* Canvas Arbeitsbereich */
.canvas-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--canvas-bg);
    overflow: hidden;
    position: relative;
}

.canvas-toolbar {
    height: 40px;
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    font-size: 0.8rem;
}

.canvas-options {
    display: flex;
    gap: 16px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.room-canvas {
    flex: 1;
    position: relative;
    overflow: auto;
    outline: none;
    background-size: var(--grid-size) var(--grid-size);
    background-image:
        linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
}

/* Canvas Elemente */
.canvas-element {
    position: absolute;
    cursor: move;
    user-select: none;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    transition: box-shadow 0.15s ease;
}

.canvas-element:focus,
.canvas-element.selected {
    outline: 2px solid var(--primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10;
}

/* Element Typen */
.element-board {
    background: #1e3a29;
    color: #fff;
    border: 2px solid #0e2015;
    border-radius: 4px;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: bold;
}

.element-teacher-desk {
    background: #d8c3a5;
    border: 2px solid #8e8d8a;
    border-radius: 4px;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.element-door {
    background: #e9ecef;
    border: 2px dashed #6c757d;
    border-radius: 2px;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

.element-window {
    background: #e7f5ff;
    border: 2px solid #339af0;
    border-radius: 2px;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
}

/* Freie Raumbeschriftungen & Einrichtungsgegenstände */
.element-text-label {
    background: #ffffff;
    border: 1.5px dashed #0969da;
    border-radius: 6px;
    padding: 6px 10px;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: #0969da;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
    text-align: center;
    cursor: pointer;
}

.element-text-label:hover {
    background: #f0f7ff;
    border-color: #0550ae;
}

.element-arrow {
    background: rgba(36, 41, 47, 0.05);
    border: 2px dashed #57606a;
    border-radius: 18px;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: #24292f;
    letter-spacing: 0.5px;
}

.element-beamer {
    background: #24292f;
    color: #ffffff;
    border: 2px solid #090c10;
    border-radius: 6px;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.element-sink {
    background: #e6f6ff;
    border: 2px solid #0969da;
    border-radius: 6px;
    color: #0550ae;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.element-books {
    background: #fff8e6;
    border: 2px solid #bf8700;
    border-radius: 6px;
    color: #7d4e00;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.element-cabinet {
    background: #f1f3f5;
    border: 2px solid #8c959f;
    border-radius: 4px;
    color: #24292f;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

[class*="element-desk"] {
    background: var(--desk-bg);
    border: 2px solid var(--desk-border);
    border-radius: 6px;
    padding: 4px;
    display: flex;
    flex-direction: row; /* Standard: Plätze nebeneinander (einer links, einer rechts) */
    gap: 6px;
    align-items: center;
    justify-content: space-around;
}

.element-desk-double {
    flex-direction: row !important;
}

.element-desk-double.is-vertical {
    flex-direction: column !important;
}

[class*="element-desk"].is-vertical {
    flex-direction: column;
}

/* 2er-Tisch (Gegenüber / Partnertisch): Standardmäßig gegenüber (oben & unten), bei 90°-Drehung links & rechts */
.element-desk-facing {
    flex-direction: column !important;
    position: relative;
}

.element-desk-facing.is-rotated {
    flex-direction: row !important;
}

.element-desk-facing::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 8px;
    right: 8px;
    height: 1px;
    background: rgba(212, 163, 115, 0.5);
    pointer-events: none;
    z-index: 1;
}

.element-desk-facing.is-rotated::after {
    top: 8px;
    bottom: 8px;
    left: 50%;
    right: auto;
    width: 1px;
    height: auto;
}

.element-desk-group {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 6px;
}

/* Sitzplatz im Tisch */
.seat-slot {
    flex: 1;
    width: 100%;
    height: 100%;
    border: 1.5px dashed var(--seat-border);
    border-radius: 4px;
    background: var(--seat-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 4px;
    font-size: 0.75rem;
    position: relative;
    text-align: center;
    overflow: hidden;
    transition: all 0.15s ease;
    user-select: none;
}

.seat-slot:hover {
    background: var(--seat-bg-occupied);
    border-color: var(--primary);
}

.seat-slot.drag-over {
    background: #e0f2fe !important;
    border: 2px dashed #0284c7 !important;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.25);
    z-index: 5;
}

.seat-slot.occupied {
    border-style: solid;
    border-color: var(--seat-border-occupied);
    background: var(--seat-bg-occupied);
    color: var(--seat-text);
    font-weight: 600;
    cursor: grab;
}

.seat-slot.occupied:active {
    cursor: grabbing;
}

.seat-slot.is-dragging {
    opacity: 0.4;
    border-style: dashed;
}

.seat-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    color: var(--seat-text);
}

.seat-tags {
    display: flex;
    gap: 3px;
    margin-top: 3px;
}

.tag-bubble {
    width: 7px;
    height: 7px;
    border-radius: 50%;
}

.seat-note-indicator {
    position: absolute;
    top: 2px;
    right: 4px;
    font-size: 0.65rem;
    color: #ff9800;
}

/* Element Controls Overlay */
.element-actions {
    position: absolute;
    top: -28px;
    right: 0;
    display: none;
    gap: 4px;
    padding-bottom: 8px; /* Lücken-Überbrückung: Cursor verliert das Element beim Hochschieben nicht */
    z-index: 50;
}

/* Falls Element nah am oberen Rand liegt, Buttons nach unten klappen */
.canvas-element.actions-bottom .element-actions {
    top: auto;
    bottom: -28px;
    padding-bottom: 0;
    padding-top: 8px;
}

.canvas-element:hover .element-actions,
.canvas-element.selected .element-actions {
    display: flex !important;
}

.btn-elem-action {
    background: #1f2328;
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 4px;
    width: 24px;
    height: 24px;
    font-size: 0.8rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
    transition: background 0.12s ease, transform 0.1s ease;
    line-height: 1;
}

.btn-elem-action:hover {
    transform: scale(1.12);
}

.btn-elem-action.btn-delete:hover {
    background: var(--danger) !important;
    border-color: var(--danger) !important;
}

.btn-elem-action.btn-rotate:hover {
    background: var(--primary) !important;
    border-color: var(--primary) !important;
}

.btn-elem-action.btn-edit-label:hover {
    background: #0969da !important;
    border-color: #0969da !important;
}

/* Sichtschutz / Beamer-Modus */
body.privacy-mode .seat-note-indicator,
body.privacy-mode .seat-tags,
body.privacy-mode .color-legend-list {
    display: none !important;
}

/* Dialog / Modal */
.modal {
    margin: auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0;
    box-shadow: var(--card-shadow);
    background: var(--surface-color);
    color: var(--text-main);
    max-width: 440px;
    width: 90%;
}

.modal::backdrop {
    background: rgba(0, 0, 0, 0.55);
}

.modal-card {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-muted);
}

.btn-close:hover {
    color: var(--text-main);
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.modal-body label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.form-input {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 0.9rem;
    background: var(--input-bg);
    color: var(--text-main);
}

.modal-tags-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 6px;
}

.tag-checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    background: var(--btn-sec-bg);
    color: var(--text-main);
    padding: 4px 8px;
    border-radius: 12px;
    cursor: pointer;
}

.modal-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 8px;
}

/* Schnellauswahl / Zuweisung */
.assign-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 180px;
    overflow-y: auto;
    padding: 4px;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.assign-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: inherit;
    font-weight: 500;
    transition: all 0.12s ease;
    text-align: left;
    width: 100%;
}

.assign-item:hover {
    background: #f0f7ff;
    border-color: var(--primary);
    transform: translateX(2px);
}

.assign-item-name {
    display: flex;
    align-items: center;
    gap: 6px;
}

.empty-hint {
    padding: 16px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-style: italic;
}

.modal-divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.75rem;
    margin: 8px 0;
}

.modal-divider::before,
.modal-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--border-color);
}

.modal-divider span {
    padding: 0 10px;
}

/* Raum-Vorlagen Modal & Karten */
.modal-wide {
    max-width: 620px;
    width: 95%;
}

.preset-config-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 14px;
    background: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.number-input-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
}

.preset-num-input {
    width: 85px !important;
    text-align: center;
    font-size: 1.15rem;
    font-weight: 700;
    padding: 6px 8px;
    color: var(--primary);
}

.preset-cards-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin: 4px 0 8px 0;
}

.preset-card {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: var(--surface-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
    align-items: flex-start;
    user-select: none;
}

.preset-card:hover {
    border-color: var(--primary);
    background: #f8fbff;
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.06);
}

.preset-card.selected {
    border-color: var(--primary);
    background: #f0f7ff;
    box-shadow: 0 0 0 1px var(--primary), 0 3px 8px rgba(9, 105, 218, 0.15);
}

.preset-card-icon {
    font-size: 1.6rem;
    line-height: 1;
    flex-shrink: 0;
}

.preset-card-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.preset-card-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-main);
}

.preset-card-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.35;
}

.preset-options-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: #fafafa;
    border: 1px dashed var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
    margin-top: 4px;
}

/* Export Modal Optionen */
.export-options-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 6px;
}

.export-option-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--surface-color);
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    text-align: left;
    transition: all 0.15s ease;
    font-family: inherit;
    width: 100%;
}

.export-option-card:hover {
    border-color: var(--primary);
    background: #f0f7ff;
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(9, 105, 218, 0.1);
}

.export-icon {
    font-size: 1.8rem;
    line-height: 1;
    flex-shrink: 0;
}

.export-info {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.export-info strong {
    font-size: 0.9rem;
    color: var(--text-main);
}

.export-info span {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.35;
}

/* Pädagogische Smart-Features: Konflikt-Warnungen & Pins */
.canvas-element.has-conflict {
    border-color: #cf222e !important;
    box-shadow: 0 0 0 2px rgba(207, 34, 46, 0.4), 0 4px 12px rgba(207, 34, 46, 0.18) !important;
}

.desk-conflict-badge {
    position: absolute;
    top: -10px;
    left: -10px;
    background: #cf222e;
    color: #fff;
    font-size: 0.75rem;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    border: 2px solid #fff;
    cursor: help;
    z-index: 25;
    animation: pulse-conflict 2s infinite ease-in-out;
}

@keyframes pulse-conflict {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.18); }
}

.seat-slot.seat-conflict {
    background: #fff0f0 !important;
    border-color: #cf222e !important;
}

.seat-pin-badge {
    position: absolute;
    top: 2px;
    left: 3px;
    font-size: 0.75rem;
    cursor: pointer;
    filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.25));
    user-select: none;
    z-index: 4;
}

.chip-pin {
    font-size: 0.75rem;
    line-height: 1;
}

/* "Nicht-neben"-Listenansicht im Schüler-Detail-Modal */
.not-next-to-container {
    max-height: 140px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 8px;
    background: var(--input-bg);
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.not-next-to-item {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 8px;
    border-radius: 12px;
    background: var(--btn-sec-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-size: 0.75rem;
    cursor: pointer;
    user-select: none;
    transition: all 0.12s ease;
}

.not-next-to-item:hover {
    background: #fee2e2;
    border-color: #f87171;
    color: #991b1b;
}

.not-next-to-item.selected {
    background: #fee2e2;
    border-color: #ef4444;
    color: #991b1b;
    font-weight: 600;
}

.not-next-to-item input {
    margin: 0;
    cursor: pointer;
}

/* Gruppen-Generator Ansicht */
.group-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 12px;
    max-height: 420px;
    overflow-y: auto;
    padding: 4px;
}

.group-card {
    background: var(--surface-color);
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.group-card-header {
    padding: 8px 12px;
    font-size: 0.85rem;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background: var(--btn-sec-bg);
    color: var(--text-main);
}

.group-card-body {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    flex: 1;
}

.group-student-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    background: var(--btn-sec-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-main);
}

.group-count-badge {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.08);
}

/* ==========================================================================
   Plattform-Badge & Fokus-Audio-Player Integration
   ========================================================================== */

/* Fokus-Audio-Player: Positionierung rechts unten, damit Schülerpool frei bleibt */
.cmschule-audio-widget {
    left: auto !important;
    right: 24px !important;
    bottom: 14px !important;
}

/* Popover nach links aufklappen, damit es nicht über den rechten Bildschirmrand hinausragt */
.cmschule-audio-widget .cmschule-audio-popover {
    left: auto !important;
    right: 0 !important;
    transform-origin: bottom right !important;
}

/* Audio-Trigger & Popover Theme-Adaptionen */
[data-theme="chalkboard"] .cmschule-audio-trigger {
    background: rgba(21, 41, 30, 0.95);
    border-color: #34d399;
    color: #f0fdf4;
}

[data-theme="chalkboard"] .cmschule-audio-popover {
    background: #15291e;
    border-color: #244432;
    color: #f0fdf4;
}

[data-theme="chalkboard"] .cmschule-now-title {
    color: #f0fdf4;
}

[data-theme="chalkboard"] .cmschule-now-artist {
    color: #9fccaa;
}

/* Badge Theme-Adaptionen */
[data-theme="dark"] .cmschule-badge-btn {
    background: rgba(19, 27, 46, 0.92) !important;
    border-color: #334155 !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .cmschule-badge-btn:hover {
    background: #1e293b !important;
    color: #f8fafc !important;
    border-color: #64748b !important;
}

[data-theme="dark"] .cmschule-badge-btn strong {
    color: #818cf8 !important;
}

[data-theme="dark"] .cmschule-drawer-content {
    background: #131b2e !important;
    color: #f8fafc !important;
    border: 1px solid #334155 !important;
}

[data-theme="dark"] .cmschule-drawer-card {
    background: #0b0f19 !important;
    border-color: #1e293b !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .cmschule-drawer-card h4 {
    color: #818cf8 !important;
}

[data-theme="sepia"] .cmschule-badge-btn {
    background: rgba(253, 251, 247, 0.95) !important;
    border-color: #c49a6c !important;
    color: #4a3828 !important;
}

[data-theme="sepia"] .cmschule-badge-btn strong {
    color: #9a481c !important;
}

[data-theme="sepia"] .cmschule-drawer-content {
    background: #fdfbf7 !important;
    color: #33261d !important;
    border: 1px solid #dfd2c0 !important;
}

[data-theme="sepia"] .cmschule-drawer-card {
    background: #f5ebd8 !important;
    border-color: #dfd2c0 !important;
    color: #4a3828 !important;
}

[data-theme="chalkboard"] .cmschule-badge-btn {
    background: rgba(21, 41, 30, 0.95) !important;
    border-color: #34d399 !important;
    color: #f0fdf4 !important;
}

[data-theme="chalkboard"] .cmschule-badge-btn strong {
    color: #6ee7b7 !important;
}

[data-theme="chalkboard"] .cmschule-drawer-content {
    background: #15291e !important;
    color: #f0fdf4 !important;
    border: 1px solid #244432 !important;
}

[data-theme="chalkboard"] .cmschule-drawer-card {
    background: #0d1a13 !important;
    border-color: #244432 !important;
    color: #d1fae5 !important;
}

/* Screen utility */
.no-screen {
    display: none !important;
}

/* ===================================================
   Druckansicht: Optimiert für DIN A4 Querformat (Landscape)
   =================================================== */
@page {
    size: landscape;
    margin: 8mm;
}

@media print {
    *, *::before, *::after {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    html, body {
        background: #ffffff !important;
        color: #000000 !important;
        height: auto !important;
        min-height: 100% !important;
        width: 100% !important;
        overflow: visible !important;
        display: block !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    /* Alle interaktiven Werkzeuge & Overlays ausblenden */
    .app-header,
    .sidebar-left,
    .canvas-toolbar,
    .element-actions,
    .desk-conflict-badge,
    .btn-elem-action,
    .modal,
    dialog,
    #cmschule-badge-placeholder,
    .cmschule-badge-container,
    .cmschule-info-drawer,
    .cmschule-drawer-backdrop,
    .cmschule-audio-widget,
    .no-print {
        display: none !important;
    }

    .main-layout {
        display: block !important;
        overflow: visible !important;
        height: auto !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .canvas-container {
        display: block !important;
        background: #ffffff !important;
        overflow: visible !important;
        height: auto !important;
        width: 100% !important;
        position: static !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    /* Saubere Druck-Kopfzeile */
    .print-header {
        display: flex !important;
        justify-content: space-between;
        align-items: center;
        border-bottom: 2px solid #334155;
        padding-bottom: 8px;
        margin-bottom: 12px;
    }

    .print-title-group {
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .print-title-group h2 {
        font-size: 1.35rem !important;
        font-weight: 800 !important;
        margin: 0 !important;
        color: #0f172a !important;
    }

    .print-room-badge {
        font-size: 0.85rem !important;
        font-weight: 700 !important;
        background: #f1f5f9 !important;
        border: 1px solid #cbd5e1 !important;
        padding: 3px 10px !important;
        border-radius: 6px !important;
        color: #1e293b !important;
    }

    .print-meta-group {
        font-size: 0.8rem !important;
        color: #64748b !important;
        display: flex;
        align-items: center;
        gap: 12px;
    }

    .print-brand {
        font-weight: 700;
        color: #4f46e5 !important;
    }

    /* Klassenraum-Arbeitsfläche drucksicher rendern */
    .room-canvas {
        background: #ffffff !important;
        background-image: none !important;
        border: 1px dashed #cbd5e1 !important;
        border-radius: 8px !important;
        overflow: visible !important;
        height: auto !important;
        min-height: 580px !important;
        width: 100% !important;
        position: relative !important;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
    }

    .canvas-element {
        box-shadow: none !important;
        outline: none !important;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
        cursor: default !important;
    }

    .canvas-element.selected {
        outline: none !important;
        box-shadow: none !important;
    }

    /* Tische & Sitze mit scharfen Kontrasten */
    [class*="element-desk"] {
        background: #fdf6ec !important;
        border: 2px solid #d4a373 !important;
        color: #1f2328 !important;
    }

    .seat-slot {
        background: rgba(255, 255, 255, 0.9) !important;
        border: 1.5px solid #cbd5e1 !important;
        color: #1f2328 !important;
    }

    .seat-slot.occupied {
        background: #ffffff !important;
        border-color: #8c959f !important;
        color: #0f172a !important;
    }

    .seat-name {
        color: #0f172a !important;
        font-weight: 700 !important;
    }

    .element-board {
        background: #1e3a29 !important;
        color: #ffffff !important;
        border: 2px solid #0e2015 !important;
    }

    .element-teacher-desk {
        background: #d8c3a5 !important;
        border: 2px solid #8e8d8a !important;
        color: #000000 !important;
    }

    .element-door {
        background: #e9ecef !important;
        border: 2px dashed #6c757d !important;
    }

    .element-window {
        background: #e7f5ff !important;
        border: 2px solid #74c0fc !important;
    }

    .element-beamer {
        background: #24292f !important;
        color: #ffffff !important;
    }

    .element-cabinet {
        background: #f1f3f5 !important;
        border: 2px solid #8c959f !important;
    }
}