/* General Body & Font */
body { 
    font-family: 'Inter', sans-serif; 
    background-color: #f3f4f6; /* bg-gray-100 */
    color: #1f2937; /* text-gray-800 */
}

/* --- MODAL STYLES --- */
.modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}
.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}
.modal-content {
    position: relative;
    background: white;
    border-radius: 0.5rem; /* rounded-lg */
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25); /* shadow-2xl */
    max-height: 90vh;
    overflow-y: auto;
    width: 100%;
}

/* --- FORM STYLES --- */
.form-label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.875rem; /* text-sm */
    font-weight: 500; /* font-medium */
    color: #374151; /* text-gray-700 */
}
.form-input, .form-select, .form-textarea {
    display: block;
    width: 100%;
    border-radius: 0.375rem; /* rounded-md */
    border: 1px solid #d1d5db; /* border-gray-300 */
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); /* shadow-sm */
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input, .form-select {
    height: 2.5rem; /* h-10 */
    padding-left: 0.75rem;
    padding-right: 0.75rem;
}
.form-textarea {
    padding: 0.5rem 0.75rem;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: #a5b4fc; /* focus:border-indigo-300 */
    box-shadow: 0 0 0 3px rgba(165, 180, 252, 0.4); /* focus:ring */
}

/* --- BUTTONS --- */
.btn-primary {
    background-color: #4f46e5; /* bg-indigo-600 */
    color: white;
    font-weight: 600; /* font-semibold */
    padding: 0.5rem 1rem;
    border-radius: 0.375rem; /* rounded-lg */
    box-shadow: 0 1px 2px 0 rgba(0,0,0,0.1);
    transition: background-color 0.2s;
}
.btn-primary:hover { background-color: #4338ca; /* hover:bg-indigo-700 */ }

.btn-secondary {
    background-color: #e5e7eb; /* bg-gray-200 */
    color: #1f2937; /* text-gray-800 */
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
}
.btn-secondary:hover { background-color: #d1d5db; /* hover:bg-gray-300 */ }

/* --- Main Panel and Layout Styles --- */
#vi-left-panel {
    width: 280px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#vi-main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.vi-card {
    background-color: white;
    border-radius: 0.5rem;
    border: 1px solid #e5e7eb; /* gray-200 */
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.vi-card-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.vi-card-title {
    font-weight: 600;
    color: #1f2937; /* gray-800 */
}

.vi-card-body {
    padding: 1rem;
}

#unplaced-assets-container {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

#unplaced-assets-list-wrapper {
    overflow-y: auto;
    height: 100%;
    flex-grow: 1;
    padding: 0.5rem;
    background-color: #f3f4f6; /* gray-100 */
    border-radius: 0.375rem;
}

#unplaced-assets-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* --- MISC --- */
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- Toolbar and Controls Styles --- */
.vi-toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.vi-breadcrumb-container {
    font-size: 0.875rem;
    color: #6b7280; /* gray-500 */
}

/* --- Grid and Room Styles --- */
#room-grid-container {
    background-color: #f7fafc; /* gray-100 */
    border: 1px solid #e2e8f0; /* gray-300 */
    overflow: auto;
    position: relative;
    min-height: 60vh;
    border-radius: 0.5rem;
    padding: 1rem;
}

#room-grid {
    background-color: #ffffff;
}

canvas {
    cursor: default;
}

/* --- Toolbar & Unplaced Assets --- */
.toolbar-item { cursor: grab; border-radius: 0.375rem; padding: 0.5rem 1rem; font-weight: 500; transition: background-color 0.2s; user-select: none; }
.toolbar-item:active { cursor: grabbing; }
.toolbar-item:hover { background-color: #e5e7eb; }

.unplaced-asset-item { display: flex; align-items: center; gap: 0.5rem; padding: 0.5rem; font-size: 0.875rem; line-height: 1.25rem; border-left: 4px solid #d1d5db; background-color: #fff; border-radius: 0.25rem; cursor: grab; transition: background-color 0.2s; }
.unplaced-asset-item:hover { background-color: #f9fafb; }
.unplaced-asset-icon { font-size: 1rem; line-height: 1; flex-shrink: 0; }
.unplaced-asset-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Specific BORDER COLORS for Unplaced Assets */
.unplaced-asset-item[data-asset-type*="laptop"] { border-left-color: #3b82f6; }
.unplaced-asset-item[data-asset-type*="computer"] { border-left-color: #3b82f6; }
.unplaced-asset-item[data-asset-type*="monitor"] { border-left-color: #10b981; }
.unplaced-asset-item[data-asset-type*="tv"] { border-left-color: #ec4899; }
.unplaced-asset-item[data-asset-type*="tablet"] { border-left-color: #0ea5e9; }
.unplaced-asset-item[data-asset-type*="chair"] { border-left-color: #a855f7; }
.unplaced-asset-item[data-asset-type*="container"] { border-left-color: #f59e0b; }
.unplaced-asset-item[data-asset-type*="shelf"] { border-left-color: #84cc16; }
.unplaced-asset-item[data-asset-type*="projector"] { border-left-color: #6366f1; }

.unplaced-group-header { font-weight: 600; font-size: 0.75rem; color: #4b5563; padding: 0.5rem 0.25rem; margin-top: 0.75rem; border-bottom: 1px solid #e5e7eb; text-transform: uppercase; letter-spacing: 0.05em; }


/* --- Radial Menu --- */
.radial-menu { position: fixed; width: 170px; height: 170px; z-index: 1000; pointer-events: none; transform: translate(-50%, -50%) scale(0.8); opacity: 0; transition: transform 0.15s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.2s ease-out; }
.radial-menu.visible { transform: translate(-50%, -50%) scale(1); opacity: 1; }
.radial-svg-container { width: 100%; height: 100%; pointer-events: all; }
.radial-button { cursor: pointer; opacity: 0.8; transition: opacity 0.15s ease-in-out, filter 0.15s ease-in-out; }
.radial-button.hidden { display: none; }
.radial-button:hover { opacity: 1; filter: brightness(1.1) saturate(1.2); }
#radial-delete-use:hover { filter: brightness(1.25); }

/* --- Scale Indicator --- */
#scale-indicator {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.8);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    color: #4b5563; /* gray-600 */
    pointer-events: none;
}
#scale-indicator.hidden {
    display: none;
}
#scale-line {
    width: 100px; /* Default, will be set by JS */
    height: 2px;
    background-color: #4b5563; /* gray-600 */
    border-left: 1px solid #4b5563;
    border-right: 1px solid #4b5563;
    height: 8px;
    border-top: none;
    border-bottom: none;
}
#scale-text {
    margin-top: 0.125rem;
}