:root {
    --bg-main: #121212;
    --bg-surface: #1e1e1e;
    --bg-panel: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --accent-color: #00e5ff;
    --accent-hover: #00b3cc;
    --border-color: #333333;
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --transition: 0.3s ease;
}

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

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

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-color);
    letter-spacing: 1px;
}

.main-nav button {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
}

.main-nav button:hover,
.main-nav button.active {
    color: var(--text-primary);
    background-color: var(--bg-panel);
}

.main-nav button.active {
    border-bottom: 2px solid var(--accent-color);
    border-radius: 4px 4px 0 0;
}

.user-actions button {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.8;
}

.user-actions button:hover {
    opacity: 1;
}

/* Main Content */
.app-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.view {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
    overflow-y: auto;
}

.view.active {
    opacity: 1;
    pointer-events: auto;
}

/* Geometry Toolbar */
.toolbar {
    display: flex;
    flex-wrap: wrap; /* las opciones pasan a la siguiente línea en pantallas pequeñas */
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: var(--bg-surface);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.toolbar button, .toolbar select {
    background-color: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
}

.toolbar button:hover {
    background-color: var(--accent-color);
    color: #000;
}

/* Snapping: controles de rejilla */
.snap-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Controles de dibujo: ortogonal, ángulo fijo y longitud */
.draw-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Popup de longitud dinámica (Ctrl o tecla l/m mientras se dibuja) */
.length-popup {
    position: absolute;
    bottom: 12px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    padding: 0.5rem 0.9rem;
    background: rgba(0, 0, 0, 0.75);
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    z-index: 6;
}

.length-popup label {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.length-popup input[type="number"] {
    width: 110px;
    background-color: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.3rem 0.5rem;
    border-radius: 4px;
    font-size: 0.95rem;
    text-align: center;
}

.length-popup small {
    color: var(--text-secondary);
    font-size: 0.7rem;
}

.toolbar button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.snap-controls label.snap-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
}

.snap-controls input[type="checkbox"] {
    accent-color: var(--accent-color);
    cursor: pointer;
}

/* HUD del canvas: estado de snap y coordenadas */
.canvas-hud {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 4px 10px;
    background: rgba(0, 0, 0, 0.55);
    color: var(--text-secondary);
    font-size: 0.8rem;
    border-radius: 4px;
    pointer-events: none;
    z-index: 5;
}

/* Cursor de desplazamiento mientras se arrastra con el botón central */
.canvas-container.panning {
    cursor: grabbing;
}

/* Canvas */
.canvas-container {
    flex: 1;
    background-color: #1a1a1a;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    height: calc(100% - 60px); /* subtract toolbar */
    cursor: crosshair;
}

canvas {
    width: 100%;
    height: 100%;
}

/* Utils */
.hidden {
    display: none !important;
}

/* Botones primarios (panel de plantas, modales) */
.btn-primary {
    background-color: var(--accent-color);
    color: #000;
    border: 1px solid var(--accent-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
}

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

/* Botón secundario (acción "+ Nueva categoría") */
.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: color var(--transition), border-color var(--transition);
}

.btn-secondary:hover {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.storey-panel .btn-secondary {
    margin-top: 0.75rem;
    margin-left: 0.5rem;
}

/* Lienzo de fondo (TAREA IMPORT-1): panel flotante mínimo sobre el canvas. */
.background-panel {
    position: absolute;
    left: 0.75rem;
    bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0.75rem;
    background: rgba(10, 14, 20, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    max-width: calc(100% - 1.5rem);
}
.background-meta {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 16rem;
}
.background-opacity { display: flex; align-items: center; gap: 0.4rem; white-space: nowrap; }
#background-opacity { width: 7rem; accent-color: var(--accent-color); }
#background-lock[aria-pressed="true"] { color: var(--accent-color); border-color: var(--accent-color); }

/* Capa vectorial DXF: panel de referencia y snap, independiente del fondo raster. */
.dxf-calco-panel {
    position: absolute;
    right: 0.75rem;
    top: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.5rem 0.7rem;
    background: rgba(10, 14, 20, 0.88);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    max-width: calc(100% - 1.5rem);
}
.dxf-calco-visible {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-primary);
    white-space: nowrap;
}
.dxf-calco-visible input { accent-color: var(--accent-color); }
#dxf-calco-opacity { width: 6.5rem; accent-color: var(--accent-color); }

/* Importar plano (TAREA IMPORT-2): menú de la toolbar y asistente de importación. */
.toolbar-menu { position: relative; display: inline-flex; }
.toolbar-menu-popup {
    position: absolute; top: calc(100% + 0.35rem); left: 0; z-index: 20;
    display: flex; flex-direction: column; min-width: 13rem;
    /* Fondo sólido: con el translúcido --bg-panel el texto quedaba ilegible. */
    background: var(--bg-surface); color: var(--text-primary);
    border: 1px solid var(--border-color); border-radius: 6px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45); overflow: hidden;
}
.toolbar-menu-item {
    text-align: left; padding: 0.6rem 0.8rem; background: transparent; color: var(--text-primary);
    border: 0; border-bottom: 1px solid var(--border-color); cursor: pointer; font: inherit;
}
.toolbar-menu-item:last-child { border-bottom: 0; }
.toolbar-menu-item:hover, .toolbar-menu-item:focus-visible { background: rgba(255, 255, 255, 0.06); }
.modal-card-wide { width: min(780px, 100vw - 2rem); max-width: 100%; overflow: hidden; }
.import-drop {
    display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
    padding: 1.5rem; margin-bottom: 0.5rem; text-align: center;
    border: 2px dashed var(--border-color); border-radius: 8px; background: var(--bg-surface);
}
.import-drop.drag-over { border-color: var(--accent-color); background: rgba(0, 229, 255, 0.08); }
.import-drop-icon { font-size: 2.2rem; color: var(--accent-color); }
.import-preview-toolbar { display: flex; align-items: center; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.5rem; }
.import-preview {
    display: block; width: 100%; height: 320px; cursor: crosshair;
    background: var(--bg-surface); border: 1px solid var(--border-color); border-radius: 6px;
}
.import-scale-row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; margin-top: 0.75rem; }
.import-scale-row .import-real-field { margin: 0; }
#import-plan-real { width: 8rem; }
.import-scale-value { color: var(--text-secondary); }
.import-scale-value strong { color: var(--text-primary); }
/* El lienzo del editor muestra el cursor de movimiento en modo «Ajustar fondo». */
.canvas-container.background-move-cursor canvas { cursor: move; }

/* Proyecto: consulta de espacios y sus superficies compartidas. */
.project-subviews { display: flex; gap: 0.5rem; margin-top: 1rem; }
.project-subviews [aria-pressed="true"], .space-choice[aria-pressed="true"] {
    border-color: var(--accent-color);
    background: rgba(0, 229, 255, 0.08);
}
.spaces-layout { display: grid; grid-template-columns: 1fr 1fr 1.5fr; gap: 1rem; margin-top: 1rem; }
.spaces-layout > div { min-width: 0; }
.spaces-layout h3, .spaces-layout h4 { margin: 0.75rem 0; }
.space-choice {
    display: block; width: 100%; margin: 0.4rem 0; padding: 0.7rem;
    text-align: left; color: var(--text-primary); background: transparent;
    border: 1px solid var(--border-color); border-radius: 4px; cursor: pointer;
}
.space-floor-toggle {
    display: flex; align-items: center; gap: 0.4rem; width: 100%; padding: 0.5rem;
    background: transparent; color: var(--text-primary); font: inherit; text-align: left;
    border: 1px solid var(--border-color); border-radius: 4px; cursor: pointer;
}
.space-floor-toggle:hover, .space-floor-toggle:focus-visible { border-color: var(--accent-color); }
.space-choice small { display: block; color: var(--text-secondary); margin-top: 0.3rem; }
.space-choice:hover, .space-choice:focus-visible { border-color: var(--accent-color); }
.boundary-element { border-bottom: 1px solid var(--border-color); padding-bottom: 1rem; }
.boundary-element pre { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 0.75rem; }
.boundary-diagram { width: 100%; height: 160px; background: var(--bg-surface); }
.boundary-diagram polygon { fill: rgba(0, 229, 255, 0.12); }
.boundary-diagram polyline { fill: none; }
.boundary-diagram polygon, .boundary-diagram polyline { stroke: var(--accent-color); stroke-width: 2; }
.boundary-diagram text { fill: var(--text-primary); }
.boundary-diagram .marker-door line, .boundary-diagram .marker-door path { fill: none; stroke: #ffd18a; stroke-width: 1.5; }
.boundary-diagram .marker-door .opening-slab { fill: #20252b; stroke: var(--accent-color); stroke-width: 1.5; }
.boundary-diagram .marker-window polygon { fill: var(--bg-surface); stroke: var(--accent-color); stroke-width: 1.5; }
.boundary-diagram .marker-window line { fill: none; stroke: var(--accent-color); stroke-width: 1.5; }
@media (max-width: 900px) { .spaces-layout { grid-template-columns: 1fr; } }


/* Panel de plantas (vista Proyecto, FASE 1 - TAREA 2) */
.storey-panel {
    margin-top: 1rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
}

.storey-panel h2 {
    color: var(--text-secondary);
    font-size: 1rem;
    margin: 0 0 0.5rem 0;
}

.storey-panel .btn-primary {
    margin-top: 0.75rem;
}

#storey-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.storey-item {
    display: block;
    margin-bottom: 0.3rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: background var(--transition);
}

.storey-item:hover:not(.active) {
    background: rgba(255, 255, 255, 0.06);
}

.storey-item:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: -2px;
}

/* Fila superior de la planta: caret + nombre + altura + acciones */
.storey-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.6rem;
}

/* Indicador de despliegue (Material `chevron_right` / `expand_more`) */
.storey-caret {
    font-size: 1.05rem;
    color: var(--text-secondary);
    opacity: 0.8;
}

.storey-item.expanded .storey-caret {
    color: var(--accent-color);
}

/* Drag & drop para reordenar las plantas */
.storey-item[draggable="true"] {
    cursor: grab;
}

.storey-item.dragging {
    opacity: 0.45;
}

.storey-item.drag-over {
    outline: 2px dashed var(--accent-color);
    outline-offset: -2px;
}

.storey-item.active {
    border-color: var(--accent-color);
    background: rgba(0, 229, 255, 0.08);
}

.storey-name {
    color: var(--text-primary);
    font-weight: 600;
}

.storey-meta {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.storey-badge {
    font-size: 0.7rem;
    color: #000;
    background: var(--accent-color);
    border-radius: 4px;
    padding: 0.1rem 0.4rem;
}

.storey-empty {
    color: var(--text-secondary);
    font-style: italic;
}

/* Acciones por planta: editar (lápiz `edit`) y ver (`visibility`) */
.storey-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.15rem;
}

.storey-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1;
    cursor: pointer;
    padding: 0.15rem 0.3rem;
    border-radius: 4px;
    opacity: 0.6;
    display: inline-flex;
    align-items: center;
}

.storey-icon:hover {
    opacity: 1;
    color: var(--accent-color);
}

/* Recintos detectados (subcategorías de la planta) */
.room-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border-top: 1px solid var(--border-color);
}

.storey-item:not(.expanded) .room-list {
    display: none;
}

.room-item {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.3rem 0.6rem 0.3rem 1.9rem;
    font-size: 0.85rem;
}

.room-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.room-name {
    color: var(--text-primary);
    font-weight: 600;
    cursor: pointer;
    border-radius: 4px;
    padding: 0 0.2rem;
}

.room-name:hover,
.room-name:focus-visible {
    color: var(--accent-color);
    outline: 1px solid var(--accent-color);
    outline-offset: 1px;
}

.room-category-select {
    color: var(--accent-color);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.1rem 0.35rem;
    font-size: 0.75rem;
    cursor: pointer;
    max-width: 11rem;
}

.room-category-select:hover {
    border-color: var(--accent-color);
}

.room-meta {
    color: var(--text-secondary);
    margin-left: auto;
}

.room-empty {
    list-style: none;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem 0.4rem 1.9rem;
}

/* Estadísticas del proyecto (plantas · recintos · área · volumen) */
.project-stats {
    color: var(--text-secondary);
    font-size: 0.82rem;
    margin: 0 0 0.6rem 0;
}

/* Controles de planta y referencia (Planta · Plano Referencia · Referencia) */
.storey-info {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    white-space: nowrap;
}

.storey-select-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.storey-info label.snap-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    cursor: pointer;
    user-select: none;
}

.storey-info input[type="checkbox"] {
    accent-color: var(--accent-color);
    cursor: pointer;
}

.toolbar select:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Iconos Material Symbols and Icons de Google (PRD.md §23.5) */
.material-symbols-rounded {
    font-family: 'Material Symbols Rounded';
    font-weight: normal;
    font-style: normal;
    font-size: 1.15rem;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    direction: ltr;
    font-variation-settings: 'FILL' 0, 'wght' 500, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}

/* Modal "Nueva planta" */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
}

.modal-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    width: 340px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.modal-card h2 {
    margin: 0;
    font-size: 1.1rem;
}

.form-field {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.form-field-row {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.modal-card input[type="text"],
.modal-card input[type="number"] {
    width: 100%;
    background-color: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    font-size: 0.95rem;
}

.form-field-row input[type="number"] {
    flex: 1;
}

.unit-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-error {
    color: #ff7a6b;
    font-size: 0.8rem;
    margin: 0;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.modal-actions button {
    background-color: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.45rem 1rem;
    border-radius: 4px;
    cursor: pointer;
}

.modal-actions button:hover {
    background-color: var(--accent-color);
    color: #000;
}

/* Modal "Editar espacio": tarjeta algo más ancha para que quepan los 4 botones */
#edit-room-modal .modal-card {
    width: min(560px, calc(100vw - 2rem));
    max-width: calc(100vw - 2rem);
    overflow: hidden;
}

/* Modal "Editar espacio": Anterior/Siguiente a la izquierda, Cerrar/Guardar a la derecha */
.modal-actions-spread {
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    row-gap: 0.5rem;
    column-gap: 0.5rem;
    width: 100%;
    max-width: 100%;
}

.modal-nav,
.modal-confirm {
    display: flex;
    gap: 0.5rem;
    flex-wrap: nowrap;
    min-width: 0;
    max-width: 100%;
}

.modal-actions-spread .modal-nav button,
.modal-actions-spread .modal-confirm button {
    white-space: nowrap;
    flex: 0 1 auto;
    min-width: 0;
    max-width: 100%;
    padding: 0.45rem 0.75rem;
    font-size: 0.9rem;
}

.modal-actions button:disabled {
    opacity: 0.35;
    cursor: not-allowed;
}

.room-counter {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 400;
}

/* El <select> de categoría comparte estilo dentro del modal "Editar espacio" */
.modal-card .room-category-select {
    width: 100%;
    max-width: none;
    padding: 0.4rem 0.6rem;
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* ===== Gestión de categorías acústicas (FASE 3 / TAREA 12) ===== */

/* Tarjeta ancha del modal de categorías (lista + editor) */
.modal-card-wide {
    width: min(880px, calc(100vw - 2rem));
    max-width: calc(100vw - 2rem);
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
}

/* Texto de ayuda bajo un campo */
.form-hint {
    color: var(--text-secondary);
    font-size: 0.78rem;
    margin: 0;
}

/* Botón de acción destructiva (eliminar categoría) */
.btn-danger,
.modal-actions .btn-danger {
    background-color: transparent;
    color: #ff7a6b;
    border: 1px solid #ff7a6b;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    line-height: 1;
}

.btn-danger:hover,
.modal-actions .btn-danger:hover {
    background-color: #ff7a6b;
    color: #000;
}

/* Selects dentro de las tarjetas modales (categorías, reasignación...) */
.modal-card select {
    background-color: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Nivel de ruido exterior (dato global del proyecto) */
.cat-global {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid var(--border-color);
}

.cat-global input[type="number"] {
    width: 9rem;
}

/* Distribución: lista de categorías (izquierda) + editor (derecha) */
.cat-layout {
    display: grid;
    grid-template-columns: minmax(180px, 240px) 1fr;
    gap: 1rem;
    align-items: start;
}

@media (max-width: 640px) {
    .cat-layout {
        grid-template-columns: 1fr;
    }
}

.cat-list-panel {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 0;
}

.cat-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    overflow: hidden;
}

.cat-list-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.6rem;
    cursor: pointer;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--border-color);
}

.cat-list-item:last-child {
    border-bottom: none;
}

.cat-list-item:hover {
    background: rgba(255, 255, 255, 0.04);
}

.cat-list-item.active {
    background: rgba(0, 229, 255, 0.12);
    color: var(--accent-color);
    font-weight: 600;
}

.cat-list-count {
    margin-left: auto;
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
}

.cat-list-item.active .cat-list-count {
    color: var(--accent-color);
}

/* Alta rápida de una categoría nueva */
.cat-new {
    display: flex;
    gap: 0.35rem;
}

.cat-new input {
    flex: 1;
    min-width: 0;
}

.cat-new .btn-secondary {
    white-space: nowrap;
    padding: 0.4rem 0.6rem;
    font-size: 0.85rem;
}

/* Editor de la categoría seleccionada */
.cat-editor {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 0;
}

.cat-editor input[type="text"] {
    flex: 1;
    min-width: 0;
}

.cat-subtitle {
    margin: 0.6rem 0 0 0;
    font-size: 0.95rem;
    color: var(--text-primary);
}

/* Lista dinámica de criterios de evaluación (+ / −) */
.criteria-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.criteria-empty {
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.8rem;
    margin: 0;
}

.criterion-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-panel);
}

.criterion-row select {
    font-size: 0.82rem;
    max-width: 16rem;
}

.criterion-row input[type="number"] {
    width: 5.5rem;
}

.criterion-unit {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* Filtro por categoría del recinto colindante (aéreo e impacto) */
.criterion-target {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
    width: 100%;
}

.criterion-operator {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 0 0.3rem;
}

.criterion-target-options {
    width: 100%;
    min-width: 0;
    margin: 0;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.82rem;
}

.criterion-target-choice {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem;
    cursor: pointer;
    border-radius: 4px;
}

.criterion-target-choice:has(input:checked) {
    background: var(--bg-main);
    color: var(--accent-color);
    font-weight: 600;
}

.criterion-target-choice input {
    accent-color: var(--accent-color);
    flex-shrink: 0;
}

.criterion-target-choice:focus-within {
    outline: 2px solid var(--accent-color);
}

.criterion-target-summary {
    width: 100%;
    margin: 0.25rem 0;
    font-size: 0.8rem;
    color: var(--text-secondary);
    overflow-wrap: anywhere;
}

/* Botón de quitar parámetro (−) */
.criterion-icon-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    padding: 0.05rem 0.2rem;
    margin-left: auto;
}

.criterion-icon-btn:hover {
    color: #ff7a6b;
    border-color: #ff7a6b;
}

/* Caracterización como espacio emisor */
.cat-editor .snap-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.88rem;
    cursor: pointer;
    user-select: none;
}

.cat-editor .snap-toggle input[type="checkbox"] {
    accent-color: var(--accent-color);
    cursor: pointer;
}

.emitter-fields {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

/* Los campos del emisor quedan inactivos mientras la casilla está desmarcada */
.emitter-fields.disabled {
    opacity: 0.45;
    pointer-events: none;
}

#delete-category-reassign {
    width: 100%;
}

/* ===== Modal de importación de planos DXF (IMPORT DXF - Tarea 2) ===== */
.dxf-modal-wide {
    width: min(920px, calc(100vw - 2rem));
    max-width: calc(100vw - 2rem);
}

.dxf-modal-content {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 1.25rem;
    margin-top: 1rem;
    align-items: start;
}

@media (max-width: 768px) {
    .dxf-modal-content {
        grid-template-columns: 1fr;
    }
}

.dxf-sidebar {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    min-width: 0;
}

.dxf-fieldset {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem;
    margin: 0;
    background: var(--bg-surface);
}

.dxf-legend {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: 0 0.4rem;
}

.dxf-form-row {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-top: 0.25rem;
}

.dxf-select {
    width: 100%;
    background-color: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

.dxf-hint-sm {
    font-size: 0.75rem;
    margin-top: 0.35rem;
    color: var(--accent-color);
}

.dxf-hint-xs {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.dxf-dimensions-box {
    margin-top: 0.6rem;
    padding: 0.5rem 0.6rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.dxf-dim-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.dxf-dim-value {
    font-size: 0.95rem;
    color: var(--accent-color);
    letter-spacing: 0.5px;
}

.dxf-radio-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.25rem;
}

.dxf-radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: var(--text-primary);
    cursor: pointer;
}

.dxf-radio-label input[type="radio"] {
    accent-color: var(--accent-color);
    cursor: pointer;
}

.dxf-layers-fieldset {
    display: flex;
    flex-direction: column;
    max-height: 220px;
}

.dxf-layers-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
}

.dxf-layers-quick-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent-color);
    font-size: 0.75rem;
    cursor: pointer;
    text-decoration: underline;
}

.btn-link:hover {
    color: #fff;
}

.dxf-layers-container {
    overflow-y: auto;
    max-height: 160px;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-right: 0.25rem;
}

.dxf-layer-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    padding: 0.2rem 0.3rem;
    border-radius: 4px;
    color: var(--text-primary);
    background: transparent;
}

.dxf-layer-item:hover {
    background: var(--bg-panel);
}

.dxf-layer-item input[type="checkbox"] {
    accent-color: var(--accent-color);
    cursor: pointer;
}

.dxf-layer-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dxf-layer-count {
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.dxf-preview-container {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.dxf-preview-stats {
    margin-left: auto;
    font-size: 0.75rem;
}

.dxf-preview-canvas {
    display: block;
    width: 100%;
    height: 340px;
    background: #111418;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: grab;
}

.dxf-preview-canvas:active {
    cursor: grabbing;
}

/* Visualizador 3D (TAREA 2) */
/* El contenido 3D ya no es una .view sino una tarjeta dentro del modal. */
.viewer3d-modal-card > .viewer3d-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1.25rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.viewer3d-toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.viewer3d-toolbar-group label {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    user-select: none;
}

.viewer3d-toolbar-group input[type="checkbox"] {
    accent-color: var(--accent-color);
    cursor: pointer;
}

.viewer3d-field {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.viewer3d-toolbar select {
    background: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.3rem 0.5rem;
    font-size: 0.85rem;
}

.viewer3d-layout {
    flex: 1;
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 0.75rem;
}

.viewer3d-stage {
    position: relative;
    min-height: 340px;
    background: #0b0d10;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
}

#viewer3d-canvas {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 340px;
    touch-action: none;
    cursor: grab;
}

#viewer3d-canvas:active {
    cursor: grabbing;
}

#viewer3d-canvas:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: -2px;
}

.viewer3d-hud,
.viewer3d-help {
    position: absolute;
    pointer-events: none;
    background: rgba(10, 12, 15, 0.72);
    color: var(--text-secondary);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.viewer3d-hud {
    top: 0.5rem;
    left: 0.5rem;
}

.viewer3d-help {
    bottom: 0.5rem;
    left: 0.5rem;
    right: 0.5rem;
    text-align: center;
    font-size: 0.7rem;
}

.viewer3d-error {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    left: 0.5rem;
    background: rgba(120, 30, 30, 0.9);
    color: #ffe1e1;
    border-radius: 4px;
    padding: 0.4rem 0.6rem;
    font-size: 0.8rem;
}

.viewer3d-panel {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.viewer3d-panel h2 {
    font-size: 1rem;
}

.viewer3d-panel h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.viewer3d-panel p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.viewer3d-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.6rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.viewer3d-legend strong {
    flex-basis: 100%;
    color: var(--text-primary);
}

.viewer3d-legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.viewer3d-legend-item i {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    display: inline-block;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.viewer3d-capture-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.4rem;
    align-items: center;
}

.viewer3d-capture-controls select,
.viewer3d-capture-controls input {
    background: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.3rem 0.4rem;
    font-size: 0.8rem;
    width: 100%;
}

.viewer3d-capture-controls .btn-primary {
    grid-column: 1 / -1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    margin-top: 0.25rem;
}

.viewer3d-captures {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.viewer3d-capture-card {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr) auto auto;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.35rem;
}

.viewer3d-capture-card img {
    width: 72px;
    height: 44px;
    object-fit: contain;
    background: repeating-conic-gradient(#2a2a2a 0% 25%, #1a1a1a 0% 50%) 50% / 12px 12px;
    border-radius: 3px;
}

.viewer3d-capture-card strong {
    display: block;
    font-size: 0.75rem;
}

.viewer3d-capture-card small {
    display: block;
    color: var(--text-secondary);
    font-size: 0.7rem;
}

.viewer3d-capture-card button,
.viewer3d-capture-card a {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.2rem;
    border-radius: 4px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

.viewer3d-capture-card button:hover,
.viewer3d-capture-card a:hover {
    color: var(--accent-color);
}

/* Barra de herramientas por utilidades: cada grupo reúne los controles que
   sirven al mismo propósito, con su título y sus ayudas asociadas. */
.toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    gap: 0.5rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: var(--bg-surface);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.toolbar-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.35rem 0.6rem 0.45rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.02);
}

.toolbar-group-title {
    font-size: 0.62rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    opacity: 0.75;
    white-space: nowrap;
}

.toolbar-group-actions,
.toolbar-group-aids {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.toolbar-group-aids {
    padding-top: 0.25rem;
    border-top: 1px dashed var(--border-color);
}

.toolbar-field {
    font-size: 0.72rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.toolbar-select {
    background: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem 0.4rem;
    font-size: 0.78rem;
    max-width: 150px;
}

/* Un único estilo de casilla para toda la barra (Ortogonal incluido). */
.toolbar-check {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

.toolbar-check input[type="checkbox"] {
    accent-color: var(--accent-color);
    cursor: pointer;
    margin: 0;
}

.toolbar-3d-trigger {
    background: rgba(0, 229, 255, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
    font-weight: 600;
}

/* Modal del visor 3D: se abre sobre el dibujo y devuelve al cerrarlo. */
.viewer3d-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 30;
    padding: 1rem;
}

.viewer3d-overlay.hidden {
    display: none;
}

.viewer3d-modal-card {
    width: min(1400px, 100%);
    height: min(900px, 100%);
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.75rem;
    overflow: hidden;
}

.viewer3d-modal-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.viewer3d-modal-head h2 {
    font-size: 1rem;
    color: var(--text-primary);
}

.viewer3d-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    display: inline-flex;
}

.viewer3d-close:hover {
    color: var(--accent-color);
}

.viewer3d-plan-storey {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.viewer3d-plan-storey[hidden],
.viewer3d-check[hidden] {
    display: none;
}

.viewer3d-check {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
}

.viewer3d-check input[type="checkbox"] {
    accent-color: var(--accent-color);
    cursor: pointer;
}

/* Espacios / Muros son excluyentes: se muestran como un grupo de opciones. */
.viewer3d-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.15rem 0.45rem 0.15rem 0.35rem;
    margin: 0;
}

.viewer3d-legend-title {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    padding: 0;
}

.viewer3d-switch label {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
}

.viewer3d-switch input[type="radio"] {
    accent-color: var(--accent-color);
    cursor: pointer;
    margin: 0;
}

/* El lienzo 3D y la capa de etiquetas comparten el mismo tamaño apilado. */
.viewer3d-canvas-wrap {
    position: relative;
    flex: 1;
    min-height: 0;
}

.viewer3d-labels-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.viewer3d-labels-canvas.hidden {
    display: none;
}

/* En proyección 2D la planta se pinta en este lienzo, así que es el que recibe
   los gestos: el de WebGL queda oculto con `visibility` y deja de ser interactivo
   (pero conserva su caja, que es la que da la medida del encuadre y del zoom). */
.viewer3d-labels-canvas.viewer3d-plan-active {
    pointer-events: auto;
    touch-action: none;
    cursor: grab;
}

.viewer3d-labels-canvas.viewer3d-plan-active:active {
    cursor: grabbing;
}

.viewer3d-labels-canvas.viewer3d-plan-active:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: -2px;
}

.viewer3d-inspector {
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    background: rgba(0, 229, 255, 0.06);
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.viewer3d-inspector.hidden {
    display: none;
}

.viewer3d-inspector-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
}

.viewer3d-inspector-head h3 {
    font-size: 0.8rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.viewer3d-inspector-head button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.15rem;
    border-radius: 4px;
    display: inline-flex;
}

.viewer3d-inspector-head button:hover {
    color: var(--accent-color);
}

.viewer3d-inspector-spaces {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.viewer3d-inspector-space {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
}

.viewer3d-inspector-space i,
.viewer3d-inspector-openings i {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex: 0 0 auto;
    box-shadow: 0 0 6px currentColor;
}

.viewer3d-inspector-space small {
    display: block;
    color: var(--text-secondary);
    font-size: 0.7rem;
}

.viewer3d-inspector-metric {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.35rem 0.5rem;
    background: rgba(0, 0, 0, 0.35);
    border-radius: 4px;
    font-size: 0.8rem;
}

.viewer3d-inspector-metric strong {
    font-size: 1.05rem;
    color: #ff2bd6;
    white-space: nowrap;
}

.viewer3d-inspector-data {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    font-size: 0.75rem;
}

.viewer3d-inspector-data div {
    display: flex;
    justify-content: space-between;
    gap: 0.5rem;
}

.viewer3d-inspector-data dt {
    color: var(--text-secondary);
}

.viewer3d-inspector-data dd {
    text-align: right;
}

.viewer3d-inspector-elements {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.viewer3d-inspector-element {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.4rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.viewer3d-inspector-element-head {
    display: flex;
    flex-direction: column;
    margin-bottom: 0.2rem;
}

.viewer3d-inspector-element-head span {
    color: var(--text-primary);
    font-weight: 600;
}

.viewer3d-inspector-element-head small {
    font-size: 0.7rem;
}

.viewer3d-inspector-net {
    color: #ff2bd6;
}

.viewer3d-inspector-openings {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    margin: 0.25rem 0;
}

.viewer3d-inspector-openings li {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.viewer3d-inspector-note {
    font-size: 0.7rem;
    color: var(--text-secondary);
    font-style: italic;
}

.viewer3d-inspector-actions {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.viewer3d-inspector-actions button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    font-size: 0.75rem;
    padding: 0.35rem 0.5rem;
    background: var(--bg-panel);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
}

.viewer3d-inspector-actions button:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Fila de colindancia con su acción de inspección (Proyecto / Espacios) */
.space-relation-row {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    margin-bottom: 0.4rem;
}

.space-inspect-3d {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: none;
    border: 1px dashed var(--border-color);
    color: var(--text-secondary);
    border-radius: 4px;
    padding: 0.25rem 0.45rem;
    font-size: 0.75rem;
    cursor: pointer;
    text-align: left;
}

.space-inspect-3d:hover,
.space-inspect-3d[data-active="true"] {
    border-color: var(--accent-color);
    border-style: solid;
    color: var(--accent-color);
}

@media (max-width: 900px) {
    .viewer3d-layout { grid-template-columns: 1fr; }
    .viewer3d-stage, .viewer3d-canvas-wrap, #viewer3d-canvas { min-height: 260px; }
}

/* ==========================================================================
   Catálogo de Materiales y Soluciones Constructivas (DB-HR / BIM)
   ========================================================================== */

.materials-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.materials-header-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.35rem;
    color: var(--text-primary);
}

.materials-header-text p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.materials-header-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.materials-header-actions button {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    padding: 0.5rem 0.85rem;
    border-radius: 6px;
    cursor: pointer;
}

.materials-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    background: var(--bg-surface);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.materials-filters-bar {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.materials-filter-group {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.materials-type-filter,
.materials-subtype-filter,
.wall-modal-type-filter {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.35rem 0.75rem;
    font-size: 0.82rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.materials-type-filter:hover,
.materials-subtype-filter:hover,
.wall-modal-type-filter:hover {
    color: var(--text-primary);
    border-color: var(--accent-color);
}

.materials-type-filter.active,
.materials-subtype-filter.active,
.wall-modal-type-filter.active {
    background: var(--accent-color);
    color: #000;
    border-color: var(--accent-color);
    font-weight: 600;
}

.materials-search-wrap {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    min-width: 260px;
}

.materials-search-wrap .search-icon {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.materials-search-wrap input {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
    width: 100%;
}

.materials-stats {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.materials-table-wrapper {
    overflow-x: auto;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    max-height: calc(100vh - 270px);
}

.materials-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.materials-table th {
    background: #181818;
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 2;
}

.materials-table td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    vertical-align: middle;
}

.materials-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

.materials-table .num-col {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.material-id-badge {
    display: inline-block;
    padding: 0.2rem 0.45rem;
    background: rgba(0, 229, 255, 0.1);
    color: var(--accent-color);
    border: 1px solid rgba(0, 229, 255, 0.3);
    border-radius: 4px;
    font-weight: 700;
    font-family: monospace;
    font-size: 0.8rem;
}

.material-type-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    background: var(--bg-panel);
    color: var(--text-secondary);
}

.material-type-tag .tag-icon {
    font-size: 0.9rem;
}

.material-type-tag.type-muro { color: #8be9fd; background: rgba(139, 233, 253, 0.1); }
.material-type-tag.type-entrepiso { color: #f1fa8c; background: rgba(241, 250, 140, 0.1); }
.material-type-tag.type-cielo { color: #bd93f9; background: rgba(189, 147, 249, 0.1); }
.material-type-tag.type-puerta { color: #ffb86c; background: rgba(255, 184, 108, 0.1); }
.material-type-tag.type-ventana { color: #50fa7b; background: rgba(80, 250, 123, 0.1); }
.material-type-tag.type-acabado { color: #ff79c6; background: rgba(255, 121, 198, 0.1); }

.alpha-highlight {
    color: #ff79c6;
}

.layers-col {
    max-width: 320px;
}

.bim-layers {
    display: block;
    font-family: monospace;
    font-size: 0.78rem;
    color: #88c0d0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.dash {
    color: #555;
}

.materials-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
    gap: 0.75rem;
}

.materials-empty .empty-icon {
    font-size: 3rem;
    opacity: 0.4;
}

/* Modal de Asignación de Material a Muro y Vanos */
.modal-wide {
    max-width: 780px;
    width: 95vw;
}

.modal-card.modal-wide {
    width: min(780px, calc(100vw - 2rem));
    max-height: min(88vh, 760px);
    max-height: min(88dvh, 760px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
    border-radius: 8px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
}

.modal-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
    flex-shrink: 0;
}

.modal-header-bar h2 {
    margin: 0;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close-x {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 4px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.modal-close-x:hover {
    color: #000;
    background: var(--accent-color);
    border-color: var(--accent-color);
}

.modal-scroll-body {
    padding: 1.25rem;
    overflow-y: auto;
    overscroll-behavior: contain;
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-card.modal-wide > .modal-actions {
    padding: 0.75rem 1.25rem;
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    flex-shrink: 0;
    margin: 0;
}

.wall-surface-summary {
    background: var(--bg-main);
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    font-size: 0.82rem;
    margin-bottom: 0;
}

.wall-rooms-context {
    margin-top: 0.35rem;
    color: #8be9fd;
}

.wall-material-section {
    margin-bottom: 0;
}

.wall-openings-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.wall-opening-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 6px;
    gap: 0.75rem;
}

.wall-opening-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.wall-material-section h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.current-material-card {
    background: rgba(0, 229, 255, 0.05);
    border: 1px solid rgba(0, 229, 255, 0.3);
    border-radius: 6px;
    padding: 0.75rem;
}

.current-material-none {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem;
    background: rgba(255, 184, 108, 0.08);
    border: 1px dashed rgba(255, 184, 108, 0.3);
    border-radius: 6px;
    font-size: 0.82rem;
    color: #ffb86c;
}

.current-material-card .material-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.35rem;
}

.current-material-card .material-props {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

.current-material-card .material-layers {
    font-size: 0.78rem;
    color: #88c0d0;
    font-family: monospace;
    margin-bottom: 0.5rem;
}

.wall-modal-toolbar {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.wall-modal-toolbar input {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.6rem;
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 0.82rem;
    min-width: 200px;
}

.wall-material-picker {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 280px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem;
    background: var(--bg-main);
}

.wall-material-card {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.6rem;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: var(--bg-surface);
    transition: all 0.2s ease;
}

.wall-material-card:hover {
    border-color: var(--accent-color);
}

.wall-material-card.selected {
    border-color: var(--accent-color);
    background: rgba(0, 229, 255, 0.05);
}

.wall-material-card .card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.wall-material-card .active-badge {
    margin-left: auto;
    font-size: 0.7rem;
    background: var(--accent-color);
    color: #000;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-weight: 700;
}

.wall-material-card .card-specs {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.wall-material-card .card-layers {
    font-size: 0.75rem;
    font-family: monospace;
    color: #88c0d0;
}

.wall-material-card .card-action {
    display: flex;
    justify-content: flex-end;
    margin-top: 0.2rem;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

/* Modal de Importación CSV */
.materials-dropzone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem 1rem;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    background: var(--bg-surface);
    gap: 0.5rem;
    margin: 1rem 0;
    transition: border-color 0.2s ease;
}

.materials-dropzone.dragover {
    border-color: var(--accent-color);
    background: rgba(0, 229, 255, 0.05);
}

.materials-dropzone .drop-icon {
    font-size: 2.5rem;
    color: var(--accent-color);
}

.materials-import-options {
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
}

.preview-table-wrap {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-top: 0.5rem;
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.75rem;
}

.preview-table th, .preview-table td {
    padding: 0.4rem 0.6rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    text-align: left;
}

.preview-table th {
    background: #181818;
    position: sticky;
    top: 0;
}

.preview-table .more-row {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
}

/* Sub-pestañas y paneles de Materiales */
.materials-subviews {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.materials-subviews button[aria-pressed="true"] {
    background: var(--accent-color);
    color: #111;
    font-weight: 600;
}

.materials-tab-panel {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Resumen de elementos y cómputo de áreas */
.materials-summary-header, .materials-spaces-header {
    margin-bottom: 0.5rem;
}

.materials-summary-header h2, .materials-spaces-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.summary-stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.summary-stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.summary-stat-val {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.summary-stat-lbl {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.color-swatch-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.color-circle {
    display: inline-block;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 0 3px rgba(0, 0, 0, 0.5);
    flex-shrink: 0;
}

.pct-bar-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 120px;
}

.pct-bar {
    flex: 1;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
}

.pct-bar-fill {
    height: 100%;
    background: var(--accent-color);
    border-radius: 3px;
}

/* Materiales por espacio / recinto */
.materials-spaces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.25rem;
}

.room-profile-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.room-profile-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 0.75rem;
    gap: 0.75rem;
}

.room-profile-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.room-profile-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

.room-profile-acoustics-badge {
    background: rgba(0, 229, 255, 0.12);
    border: 1px solid var(--accent-color);
    border-radius: 6px;
    padding: 0.4rem 0.6rem;
    text-align: right;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.room-profile-acoustics-badge strong {
    color: var(--accent-color);
    font-size: 0.95rem;
    display: block;
}

.room-surfaces-list {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.surface-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    padding: 0.6rem 0.8rem;
    gap: 0.75rem;
}

.surface-info {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    min-width: 0;
    flex: 1;
}

.surface-type-lbl {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.surface-mat-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.surface-specs {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.surface-action button {
    padding: 0.35rem 0.6rem;
    font-size: 0.75rem;
    white-space: nowrap;
}

/* Acabados por cara en el modal de muro */
.wall-faces-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.face-assignment-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.face-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    font-weight: 600;
}

.face-badge {
    background: var(--accent-color);
    color: #111;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.1rem 0.4rem;
    border-radius: 4px;
}

.face-current-mat {
    font-size: 0.85rem;
    color: var(--text-primary);
}

.face-actions {
    display: flex;
    gap: 0.4rem;
    margin-top: 0.25rem;
}