/* --- Reseteo Básico y Fuente --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f3f4f6; /* bg-gray-100 */
    color: #1f2937; /* text-gray-900 */
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* --- Layout Principal --- */
.container {
    max-width: 90rem; /* max-w-6xl */
    margin-left: auto;
    margin-right: auto;
    padding: 1rem; /* p-4 */
}

.main-content {
    background-color: #ffffff;
    border-radius: 0.75rem; /* rounded-xl */
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); /* shadow-2xl */
    padding: 1.5rem; /* p-6 */
}

header {
    margin-bottom: 1.5rem; /* mb-6 */
    border-bottom: 1px solid #e5e7eb; /* border-b border-gray-200 */
    padding-bottom: 1rem; /* pb-4 */
}

h1 {
    font-size: 1.875rem; /* text-3xl */
    line-height: 2.25rem;
    font-weight: 700; /* font-bold */
    color: #1f2937; /* text-gray-800 */
}

header p {
    font-size: 1.125rem; /* text-lg */
    color: #4b5563; /* text-gray-600 */
    margin-top: 0.25rem;
}

.layout-container {
    display: flex;
    flex-direction: column;
    gap: 2rem; /* gap-8 */
}

.controls-column,
.preview-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem; /* gap-6 */
}

/* --- Tarjetas y Formularios --- */
.card {
    border: 1px solid #e5e7eb; /* border border-gray-200 */
    border-radius: 0.5rem; /* rounded-lg */
    padding: 1rem; /* p-4 */
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); /* shadow-sm */
}

.card-title {
    font-size: 1.25rem; /* text-xl */
    font-weight: 600; /* font-semibold */
    color: #374151; /* text-gray-700 */
    margin-bottom: 0.75rem; /* mb-3 */
}

.label {
    display: block;
    font-size: 0.875rem; /* text-sm */
    font-weight: 500; /* font-medium */
    color: #374151; /* text-gray-700 */
    margin-bottom: 0.25rem; /* mb-1 */
}

.input-field,
.textarea-field {
    width: 100%;
    padding: 0.5rem 0.75rem; /* px-3 py-2 */
    border: 1px solid #d1d5db; /* border border-gray-300 */
    border-radius: 0.5rem; /* rounded-lg */
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); /* shadow-sm */
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-field:focus,
.textarea-field:focus {
    outline: none;
    border-color: #2563eb; /* focus:border-blue-500 */
    box-shadow: 0 0 0 2px #3b82f6; /* focus:ring-2 focus:ring-blue-500 */
}

.select-field {
    width: 100%;
    padding: 0.5rem 0.75rem; /* px-3 py-2 */
    border: 1px solid #d1d5db; /* border border-gray-300 */
    border-radius: 0.5rem; /* rounded-lg */
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); /* shadow-sm */
    transition: border-color 0.2s, box-shadow 0.2s;
    
    /* Specific for select */
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem; /* Make space for the arrow */
}

.select-field:focus {
    outline: none;
    border-color: #2563eb; /* focus:border-blue-500 */
    box-shadow: 0 0 0 2px #3b82f6; /* focus:ring-2 focus:ring-blue-500 */
}

.textarea-field {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
}

/* --- Botones --- */
.btn {
    font-weight: 700; /* font-bold */
    padding: 0.5rem 1rem; /* py-2 px-4 */
    border-radius: 0.5rem; /* rounded-lg */
    border: none;
    cursor: pointer;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); /* shadow */
    transition: background-color 0.2s ease-in-out;
    margin-top: 0.75rem; /* mt-3 */
    width: auto; /* Ajustado para que no ocupen el 100% por defecto */
}

/* Botones en formularios sí ocupan el 100% */
.card .btn {
    width: 100%;
}


.btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-primary {
    background-color: #2563eb; /* bg-blue-600 */
    color: #ffffff; /* text-white */
}
.btn-primary:hover {
    background-color: #1d4ed8; /* hover:bg-blue-700 */
}

.btn-secondary {
    background-color: #6b7280; /* bg-gray-500 */
    color: #ffffff; /* text-white */
}
.btn-secondary:hover {
    background-color: #4b5563; /* hover:bg-gray-600 */
}

.btn-dark {
    background-color: #374151; /* bg-gray-700 */
    color: #ffffff; /* text-white */
}
.btn-dark:hover {
    background-color: #1f2937; /* hover:bg-gray-800 */
}

.btn-purple {
    background-color: #9333ea; /* bg-purple-600 */
    color: #ffffff; /* text-white */
}
.btn-purple:hover {
    background-color: #7e22ce; /* hover:bg-purple-700 */
}

/* Nuevos botones */
.btn-success {
    background-color: #16a34a; /* bg-green-600 */
    color: #ffffff;
}
.btn-success:hover {
    background-color: #15803d; /* hover:bg-green-700 */
}

.btn-danger {
    background-color: #dc2626; /* bg-red-600 */
    color: #ffffff;
}
.btn-danger:hover {
    background-color: #b91c1c; /* hover:bg-red-700 */
}


/* --- Columna de Vista Previa --- */
#previewArea {
    width: 100%;   position: relative;
    aspect-ratio: 1 / 1; /* aspect-square */
    background-color: #e5e7eb; /* bg-gray-200 */
    border-radius: 0.5rem; /* rounded-lg */
    border: 2px dashed #d1d5db; /* border-2 border-dashed border-gray-300 */
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05); /* shadow-inner */
}
#previewArea p {
    color: #6b7280; /* text-gray-500 */
}
#previewArea img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 0.5rem; /* rounded-lg */
}
#previewArea svg {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 0.5rem; /* rounded-lg */
}

#previewArea canvas {
    display: block; /* Asegura que no tenga espacio extra */
    width: 100%;
    height: 100%;
    position: absolute; /* Lo posiciona dentro de previewArea */
    top: 0;
    left: 0;
    border-radius: 0.5rem; /* Hereda el borde redondeado */
}


.selection-rectangle {
    fill: rgba(59, 130, 246, 0.2); /* Relleno azul semitransparente */
    stroke: #3b82f6; /* Borde azul */
    stroke-width: 1px;
    stroke-dasharray: 3 3; /* Línea discontinua */
}
/* NUEVA CLASE: Para el elemento SVG seleccionado */
.shape-selected {
    stroke: #3b82f6 !important; /* Un azul brillante */
    stroke-width: 5 !important; /* Un borde más grueso */
    stroke-dasharray: 10 5 !important; /* Línea discontinua */
    stroke-opacity: 0.9 !important;
}
.status-message {
    margin-top: 0.5rem; /* mt-2 */
    font-size: 0.875rem; /* text-sm */
    min-height: 1.25rem; /* Para evitar saltos de layout */
}
.status-error {
    color: #dc2626; /* text-red-600 */
}
.status-success {
    color: #16a34a; /* text-green-600 */
}

.actions-container {
    margin-top: 1rem; /* mt-4 */
    display: flex;
    flex-direction: column;
    gap: 0.75rem; /* gap-3 */
}
.actions-container .btn {
    flex: 1;
    margin-top: 0;
}

#svgCodeWrapper {
    margin-top: 1rem;
}
#svgCodeContainer {
    max-height: 200px; /* max-h-52 */
    overflow-y: auto; /* overflow-y-auto */
    background-color: #1f2937; /* bg-gray-800 */
    color: #d1d5db; /* text-gray-300 */
    border-radius: 0.5rem; /* rounded-lg */
    padding: 0.75rem; /* p-3 */
    margin-top: 0.25rem; /* mt-1 */
    font-family: monospace;
    font-size: 0.875rem;
}
#svgCode {
    white-space: pre-wrap;
    word-break: break-all;
}

/* --- Loader --- */
.loader-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(17, 24, 39, 0.5); /* bg-gray-900 bg-opacity-50 */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: opacity 0.3s ease;
    opacity: 1;
}
.loader-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}
.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.spinner {
    width: 4rem; /* w-16 */
    height: 4rem; /* h-16 */
    border: 4px solid #e5e7eb; /* border-gray-200 */
    border-top-color: #3b82f6; /* border-t-blue-500 */
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
.loader-content p {
    color: #ffffff;
    font-size: 1.125rem; /* text-lg */
    margin-top: 1rem; /* mt-4 */
    font-weight: 600; /* font-semibold */
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* --- Galería --- */
.gallery-container {
    margin-top: 2rem;
}
.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap; /* Para pantallas pequeñas */
    gap: 1rem;
}
.gallery-header .btn,
.gallery-header .btn-success {
    margin-top: 0; /* Anular el margen de .btn */
    white-space: nowrap; /* Evitar que el texto del botón se parta */
}
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}
.gallery-item {
    border: 1px solid #d1d5db;
    border-radius: 0.5rem;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.gallery-item:hover {
    border-color: #2563eb;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transform: translateY(-2px);
}
.gallery-item img {
    width: 100%;
    height: 100px; /* Altura fija para la imagen */
    object-fit: contain;
    background-color: #f3f4f6;
    border-radius: 0.25rem;
}
.gallery-item-name {
    font-size: 0.875rem;
    font-weight: 500;
    margin-top: 0.5rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.gallery-item-status {
    position: absolute;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem;
    z-index: 10; /* <-- AÑADIDO: Asegura que esté sobre los botones de hover */
}
.gallery-item-status .spinner-small {
    width: 1.5rem;
    height: 1.5rem;
    border: 3px solid #e5e7eb;
    border-top-color: #3b82f6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 0.5rem;
}
.gallery-item.status-error .gallery-item-status {
    color: #dc2626;
}

/* --- Modal --- */
.modal-overlay {
    /* Estilos copiados de .loader-overlay */
    position: fixed;
    inset: 0;
    background-color: rgba(17, 24, 39, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: opacity 0.3s ease;
    opacity: 1;
    padding: 1rem;
}
.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}
.modal-content {
    background-color: #ffffff;
    width: 100%;
    max-width: 500px; /* max-w-lg */
    max-height: 90vh;
    overflow-y: auto;
    /* .card ya aplica padding y border-radius */
}
.modal-content .input-field,
.modal-content .textarea-field {
    margin-bottom: 1rem;
}
.modal-actions {
    display: flex;
    flex-wrap: wrap; /* Para móviles */
    gap: 0.75rem;
    justify-content: flex-end;
    margin-top: 1rem;
}
.modal-actions .btn {
    margin-top: 0;
}

/* Zona de confirmación de borrado */
.modal-delete-confirm {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
    background-color: #fef2f2; /* bg-red-50 */
    border-radius: 0.5rem;
    padding: 1rem;
    border: 1px solid #fecaca; /* border-red-200 */
}
.modal-delete-confirm p {
    color: #b91c1c; /* text-red-700 */
    font-weight: 500;
    margin-bottom: 0.75rem;
}


/* --- Utilidad --- */
.hidden {
    display: none;
}

/* --- NUEVOS ESTILOS (Añadidos al final) --- */

/* Estilo para el ítem de galería seleccionado */
.gallery-item.selected {
    border-color: #2563eb;
    box-shadow: 0 0 0 2px #2563eb; /* Efecto de anillo */
}
/* Evita el "salto" al pasar el ratón si ya está seleccionado */
.gallery-item.selected:hover {
    transform: none;
}

/* Contenedor de botones de acción en la galería */
.gallery-item-actions {
    position: absolute;
    top: 0.25rem;
    right: 0.25rem;
    display: flex;
    gap: 0.25rem;
    opacity: 0; /* Oculto por defecto */
    transition: opacity 0.2s ease-in-out;
    z-index: 5; /* Debajo del status overlay pero sobre la imagen */
}

/* Mostrar botones al pasar el ratón */
.gallery-item:hover .gallery-item-actions {
    opacity: 1;
}

/* Estilo de los botones (editar/eliminar) */
.gallery-item-btn {
    width: 1.75rem; /* 28px */
    height: 1.75rem; /* 28px */
    border-radius: 50%; /* Circular */
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem; /* 14px */
    font-weight: bold;
    color: white;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: background-color 0.2s;
}

.gallery-item-btn.edit {
    background-color: #2563eb; /* Azul */
}
.gallery-item-btn.edit:hover {
    background-color: #1d4ed8;
}

.gallery-item-btn.delete {
    background-color: #dc2626; /* Rojo */
}
.gallery-item-btn.delete:hover {
    background-color: #b91c1c;
}


/* --- Responsividad --- */
@media (min-width: 768px) { /* md: */
    .container {
        padding: 2rem; /* md:p-8 */
    }
    .main-content {
        padding: 2rem; /* md:p-8 */
    }
    .layout-container {
        flex-direction: row; /* md:flex-row */
    }
    .controls-column,
    .preview-column {
        width: 50%; /* md:w-1/2 */
    }
    .actions-container {
        flex-direction: row; /* sm:flex-row */
    }
}

/* Estilos para la nueva sección de Controles 3D */
#controls3DSection .textarea-field {
    margin-bottom: 0.75rem; /* mb-3 */
}
.actions-3d-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem; /* gap-3 */
}

@media (min-width: 640px) { /* sm: */
    .actions-3d-buttons {
        flex-direction: row; /* Botones en línea en pantallas más grandes */
    }
    .actions-3d-buttons .btn {
        flex: 1; /* Ocupan el mismo espacio */
    }
}


/* --- Responsividad --- */
@media (min-width: 768px) { /* md: */
    /* ... (Estilos responsivos existentes) ... */
}