/* ============================================
   CANVAS - Controles y layout del canvas
   ============================================ */

.canvas-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    padding: 15px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--gray-200);
}

.canvas-controls-left {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-start;
}

.canvas-controls-right {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: flex-end;
    align-items: center;
}

.canvas-controls-confirm {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.canvas-controls-fixed {
    display: flex;
    gap: 8px;
    margin-left: 8px;
}

/* Dropdown de limpieza */
.dropdown-container {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    cursor: pointer;
    user-select: none;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-card);
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    min-width: 180px;
    z-index: 1000;
    max-height: 300px;
    overflow-y: auto;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    padding: 8px 12px;
    cursor: pointer;
    color: var(--gray-700);
    font-size: 12px;
    white-space: nowrap;
    transition: background-color 0.15s ease;
    border-bottom: 1px solid var(--gray-100);
}

.dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--gray-800);
}

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

.dropdown-divider {
    height: 1px;
    background: var(--gray-200);
    margin: 4px 0;
}

.dropdown-item.checkbox-item {
    cursor: default;
}

.dropdown-item.checkbox-item:hover {
    background: transparent;
}

.dropdown-item.checkbox-item label:hover {
    background: var(--bg-hover);
    border-radius: 4px;
}

/* Responsive - Portrait */
@media (max-width: 768px) and (orientation: portrait) {
    .canvas-controls {
        display: block;
        padding: 10px;
    }

    .canvas-controls-left {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        margin-bottom: 10px;
    }

    .canvas-controls-left .btn {
        align-self: flex-start;
        width: auto;
        min-width: 140px;
    }

    .canvas-controls-right {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 6px;
    }

    .canvas-controls-confirm {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 6px;
        margin-bottom: 10px;
    }

    .canvas-controls-fixed {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 6px;
        margin-left: 0;
    }

    .canvas-controls-right .btn {
        align-self: flex-end;
        width: auto;
        min-width: 120px;
    }
}

/* Responsive - Landscape */
@media (max-width: 1024px) and (orientation: landscape) {
    .canvas-controls {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding: 10px;
    }

    .canvas-controls-left {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        gap: 6px;
        margin-bottom: 10px;
    }

    .canvas-controls-left .btn {
        align-self: flex-start;
        width: auto;
        min-width: 140px;
    }

    .canvas-controls-right {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 6px;
    }

    .canvas-controls-confirm {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 6px;
        margin-bottom: 10px;
    }

    .canvas-controls-fixed {
        display: flex;
        flex-direction: column;
        align-items: flex-end;
        gap: 6px;
        margin-left: 0;
    }

    .canvas-controls-right .btn {
        align-self: flex-end;
        width: auto;
        min-width: 120px;
    }

    .canvas-controls-left,
    .canvas-controls-right {
        gap: 6px;
    }
}

/* Upload zone */
.upload-zone {
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    background: var(--gray-50);
    cursor: pointer;
    transition: all 0.15s;
}

.upload-zone:hover {
    background: var(--primary-light);
    border-color: var(--primary);
}

.upload-zone.has-image {
    display: none;
}

.canvas-wrapper {
    position: relative;
    background: var(--gray-100);
    border-radius: var(--radius);
    overflow: hidden;
    margin: var(--spacing-xl) 0;
    border: 1px solid var(--border);
}

.floor-canvas {
    display: block;
    width: 100%;
    max-width: 100%;
    height: auto;
    cursor: crosshair;
    touch-action: none;
}