/* --- VIEWER LAYOUT FIX --- */
/* This targets the main content area and removes its padding ONLY when the viewer is active. */
:root {
    --vp-bg-color: #F8F9FA;         /* Light gray background */
    --vp-text-color: #212529;       /* Dark text for readability */
    --vp-border-color: #DEE2E6;     /* Subtle border color */
    --vp-primary-color: #0D6EFD;     /* Bootstrap blue for accents */
    --vp-hover-bg: #E9ECEF;         /* Hover color for interactive elements */
    --vp-spacing-xs: 4px;
    --vp-spacing-sm: 8px;
    --vp-spacing-md: 16px;
    --vp-spacing-lg: 24px;
}

main:has(> .main-container) {
    padding: 0 !important;
}

/* --- BASE & FONT STYLES --- */
body {
    font-family: 'Inter', sans-serif;
    overflow: hidden;
    margin: 0;
    padding: 0;
    height: 100vh;
    width: 100vw;
    background-color: var(--vp-bg-color); /* Use theme variable */
    color: var(--vp-text-color);          /* Use theme variable */
}

/* --- MAIN LAYOUT CONTAINER --- */
.main-container {
    display: flex;
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

/* --- CONTROLS SIDE PANEL --- */
.controls-panel {
    width: 380px;
    min-width: 380px;
    height: 100%;
    display: flex;
    flex-direction: column;
    background-color: #ffffff;
    border-right: 1px solid #dee2e6;
    box-shadow: 2px 0 5px rgba(0,0,0,0.05);
    z-index: 1010;
    transition: min-width 0.3s ease-in-out, width 0.3s ease-in-out;
}

.controls-panel .card-body {
    overflow-y: auto;
    flex-grow: 1;
}

/* --- 3D VIEWER CONTAINER --- */
#viewer-container {
    flex-grow: 1;
    position: relative;
    cursor: default;
    overflow: hidden;
}

/* --- OVERLAYS & TOOLBARS --- */
#global-actions-toolbar,
#main-view-controls,
#view-cube-container,
#presence-container {
    position: absolute;
    z-index: 1000;
}

#global-actions-toolbar {
    top: 15px;
    left: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

#global-actions-toolbar .btn-group {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(5px);
    padding: 4px;
    border-radius: 0.375rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

#view-cube-container {
    top: 15px;
    right: 15px;
    width: 100px;
    height: 100px;
    pointer-events: none;
}

#main-view-controls {
    top: 125px;
    right: 15px;
}

#main-view-controls .btn-group {
    background-color: rgba(30, 30, 30, 0.6);
    backdrop-filter: blur(5px);
    border-radius: 0.375rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

#presence-container {
    top: 15px;
    right: 125px;
    display: flex;
    align-items: center;
}

#presence-container img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid white;
    margin-left: -10px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

/* --- LIST & ACCORDION ALIGNMENT FIXES --- */
.accordion-header {
    display: flex;
    align-items: center;
    width: 100%;
}

.accordion-button {
    flex-grow: 1;
    width: auto;
}

.assembly-actions {
    flex-shrink: 0;
    padding: 0 0.75rem;
}

.part-item, .layer-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    border-top: 1px solid #f0f0f0;
}

.part-item {
     padding-left: 2rem;
}

.part-label, .layer-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-right: 1rem;
}

.part-actions, .layer-actions {
    flex-shrink: 0;
    display: flex;
    gap: 4px;
}

.btn i {
    pointer-events: none;
}

/* --- SIDEBAR TOGGLE & RESPONSIVE BEHAVIOR --- */
.controls-panel {
    position: absolute;
    transform: translateX(-100%);
}

.main-container.sidebar-open .controls-panel {
    transform: translateX(0);
}

#panel-toggle-btn {
    display: block;
}

@media (min-width: 992px) {
    .controls-panel {
        position: relative;
        transform: translateX(0);
    }
    .main-container.sidebar-collapsed .controls-panel {
        min-width: 0;
        width: 0;
        border-right: none;
    }
}

/* --- COMMENTS PANEL --- */
.comments-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: 350px;
    max-width: 90%;
    height: 100%;
    background-color: #fff;
    border-left: 1px solid #dee2e6;
    transform: translateX(100%);
    transition: transform 0.3s ease-in-out;
    z-index: 1050;
    display: flex;
    flex-direction: column;
}

.comments-panel.is-visible {
    transform: translateX(0);
}

/* --- LOADING OVERLAY --- */
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(32, 41, 50, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    backdrop-filter: blur(8px);
    transition: opacity 0.3s ease;
}

#loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 40px 60px;
    border-radius: 15px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.loading-spinner {
    border: 6px solid rgba(255, 255, 255, 0.3);
    border-top: 6px solid #0d6efd;
    border-radius: 50%;
    width: 70px;
    height: 70px;
    animation: spin 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    margin-bottom: 25px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-text {
    font-weight: 700;
    color: white;
    font-size: 1.8rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}
.loader-log {
    margin-top: 20px;
    padding: 15px;
    background-color: rgba(0, 0, 0, 0.3); /* Darker background for logs */
    border-radius: 8px;
    width: 100%;
    max-width: 400px;
    min-height: 80px; /* Ensure visibility even with few logs */
    max-height: 200px;
    overflow-y: auto;
    font-size: 0.9rem;
    color: #e0e0e0; /* Lighter text color for logs */
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
}

.loader-log p {
    margin-bottom: 5px;
    line-height: 1.4;
    color: #c0c0c0;
}

.loader-log p:last-child {
    font-weight: bold;
    color: #ffffff; /* Highlight last message */
}

/* --- OTHER COMPONENT STYLES --- */
.context-menu {
    position: absolute;
    z-index: 1050;
    display: none;
    width: 200px;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.dimension-label {
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    pointer-events: none;
}
/* --- MARKUP CANVAS STYLES --- */
#main-markup-canvas {
    display: block;
    width: 100%;
    height: 100%;
}

/* Style for the text input box during markup */
#main-markup-text-input {
    border-radius: 4px;
    padding: 5px;
    font-family: sans-serif;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}
/* --- COMPONENT LIST HIGHLIGHT STYLE --- */
.accordion-item[data-assembly-label].assembly-highlighted > .accordion-header > .accordion-button {
    background-color: #fff3cd; /* Bootstrap's light yellow warning color */
    color: #664d03;
    font-weight: 500;
}

/* Keep the highlight color even when the accordion is collapsed */
.accordion-item[data-assembly-label].assembly-highlighted > .accordion-header > .accordion-button.collapsed {
    background-color: #fff3cd;
    color: #664d03;
}

/* --- NEW: Improved Side Panel Styles --- */
.controls-panel {
    background-color: var(--vp-bg-color);
    border-right: 1px solid var(--vp-border-color);
}

.accordion-button {
    font-weight: 500;
}

.accordion-button:not(.collapsed) {
    background-color: var(--vp-primary-color);
    color: white;
}

.part-item, .layer-item {
    padding: var(--vp-spacing-sm) var(--vp-spacing-md);
    transition: background-color 0.2s ease-in-out;
}

.part-item:hover, .layer-item:hover {
    background-color: var(--vp-hover-bg);
}

.part-actions .btn, .assembly-actions .btn {
    border-radius: 50px; /* Makes buttons pill-shaped */
    width: 32px;
    height: 32px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}
/* --- NEW: Discussion Panel UI Overhaul --- */

/* Style for the thread list container */
#threads-list {
    padding: 0;
    margin: 0;
}

/* Individual thread item styling */
.thread-item {
    padding: var(--vp-spacing-md);
    border-bottom: 1px solid var(--vp-border-color);
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
}

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

.thread-item:hover {
    background-color: var(--vp-hover-bg);
}

/* Header layout (title and date) */
.thread-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--vp-spacing-xs);
}

.thread-title {
    font-weight: 600;
    margin-right: var(--vp-spacing-md);
    color: var(--vp-text-color);
}

.thread-date {
    font-size: 0.8rem;
    color: #6C757D; /* Muted text color */
    white-space: nowrap;
}

.thread-author {
    font-size: 0.85rem;
    color: #495057;
}

/* Style for the footer form */
#create-thread-form {
    padding: var(--vp-spacing-sm) var(--vp-spacing-md);
    border-top: 1px solid var(--vp-border-color);
    background-color: #fff;
}

/* Error state for the input */
#create-thread-form .is-invalid {
    border-color: #DC3545; /* Bootstrap danger color */
}

/* Shake animation for validation errors */
@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

.shake-animation {
    animation: shake 0.5s cubic-bezier(.36,.07,.19,.97) both;
}

/* --- NEW: Polished Comment Section UI --- */

#comments-list {
    padding: var(--vp-spacing-sm) var(--vp-spacing-sm) var(--vp-spacing-sm) var(--vp-spacing-md);
}

.comment-item {
    display: flex;
    flex-direction: column; /* Stack main comment and replies vertically */
    gap: 0; /* Remove gap for direct children */
    margin-bottom: var(--vp-spacing-lg);
}
.comment-main {
    display: flex; /* Lay out avatar and content bubble horizontally */
    align-items: flex-start;
    gap: var(--vp-spacing-sm);
    width: 100%;
}

.comment-avatar img {
    width: 32px;
    height: 32px;
    object-fit: cover; /* Prevents image stretching */
}

.comment-content {
    flex-grow: 1;
    background-color: #FFFFFF; /* Cleaner white background */
    border: none;
    border-radius: 12px;
    padding: var(--vp-spacing-sm) var(--vp-spacing-md);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    position: relative;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--vp-spacing-xs);
}

.comment-author {
    font-weight: 600;
    font-size: 0.9rem;
}

.comment-date {
    font-size: 0.7rem;
}

.comment-attachment {
    margin-top: var(--vp-spacing-sm);
    max-width: 100%;
}

/* Actions appear on hover */
.comment-actions {
    position: absolute;
    top: -12px;
    right: 10px;
    display: flex;
    gap: var(--vp-spacing-xs);
    background-color: #FFFFFF;
    border-radius: 20px;
    padding: 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    border: 1px solid var(--vp-border-color);
    opacity: 0; /* Hidden by default */
    transform: translateY(5px);
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}

.comment-item:hover .comment-actions {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.btn-icon {
    border-radius: 50%;
}

.replies-container {
    padding-left: calc(32px + var(--vp-spacing-sm));
    margin-top: var(--vp-spacing-md);
    position: relative;
}

/* Cleaner vertical line for replies */
.replies-container::before {
    content: '';
    position: absolute;
    left: 16px; /* Centered on the avatar space */
    top: -12px;
    bottom: 0;
    width: 2px;
    background-color: #E9ECEF;
    border-radius: 2px;
}

.comment-item.is-reply {
    margin-bottom: var(--vp-spacing-md);
}
/* --- NEW: Polished Reply Form --- */

#reply-form-container .comment-content {
    padding: var(--vp-spacing-sm);
    background-color: #FFFFFF;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08); /* Add emphasis */
}

.reply-textarea {
    width: 100%;
    border: 1px solid var(--vp-border-color);
    border-radius: 6px;
    padding: var(--vp-spacing-sm);
    resize: none;
    overflow-y: hidden; /* Prevents scrollbar on auto-grow */
    font-size: 0.9rem;
    line-height: 1.4;
    transition: all 0.2s ease-in-out;
}

.reply-textarea:focus {
    border-color: var(--vp-primary-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.2);
    outline: none;
}

.reply-form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--vp-spacing-sm);
    margin-top: var(--vp-spacing-sm);
}

/* --- NEW: Polished Comment Input Area --- */

.card-footer {
    background-color: #FFFFFF;
    border-top: 1px solid var(--vp-border-color);
    padding: var(--vp-spacing-sm) var(--vp-spacing-md);
}

#add-comment-form .btn-secondary {
    background-color: transparent;
    border: 1px solid var(--vp-border-color);
    color: #6C757D;
    transition: all 0.2s ease-in-out;
}

#add-comment-form .btn-secondary:hover {
    background-color: var(--vp-hover-bg);
    border-color: #adb5bd;
    color: var(--vp-text-color);
}

/* Style for the main action button */
#add-comment-form button[type="submit"] {
    font-weight: 500;
}

/* Style for recording buttons when active */
#add-comment-form .btn-danger {
    color: #FFFFFF;
}

/* Make the markup button stand out when active */
#markup-tool-btn.active {
    background-color: var(--vp-primary-color);
    color: #FFFFFF;
    border-color: var(--vp-primary-color);
}

/* Cleaner textarea style */
#add-comment-form textarea {
    border-color: var(--vp-border-color);
    font-size: 0.9rem;
}

#add-comment-form textarea:focus {
    border-color: var(--vp-primary-color);
    box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.2);
    outline: none;
}