/* Use Pico's dark theme with custom overrides */
:root {
    --pico-font-family: 'Geist Mono', monospace;
}

/* App-specific layout (full-screen 3D viewer) */
body {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
    margin: 0;
}

#container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* Controls header */
#controls {
    padding: 0.75rem;
    padding-top: max(0.75rem, env(safe-area-inset-top));
    background: rgba(0, 0, 0, 0.95);
    border-bottom: 1px solid var(--pico-muted-border-color);
    z-index: 10;
    flex-shrink: 0;
}

.controls-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.button-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Logo and social icons */
.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    min-width: 3rem;
    height: 3rem;
    flex-shrink: 0;
    color: var(--pico-color);
    text-decoration: none;
    font-size: 1.5rem;
    transition: color 0.3s;
}

.logo-link:hover {
    color: var(--pico-primary);
}

.logo-img {
    height: 24px;
}

.info-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    font-size: 0.875rem;
    color: var(--pico-primary);
    background: rgba(0, 123, 255, 0.1);
    border-radius: 50%;
    border: 1px solid var(--pico-primary);
    cursor: pointer;
    transition: all 0.2s;
    margin: 0;
    padding: 0;
}

.info-btn:hover {
    background: rgba(0, 123, 255, 0.2);
    transform: scale(1.05);
}

.upload-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0 1rem;
    height: 3rem;
    flex-shrink: 0;
    background: var(--pico-primary);
    border: 2px solid var(--pico-primary);
    border-radius: var(--pico-border-radius);
    color: #fff;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    margin: 0;
}

.upload-button i {
    font-size: 1rem;
}

.upload-button:hover {
    background: var(--pico-primary-hover);
    border-color: var(--pico-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    min-width: 3rem;
    height: 3rem;
    flex-shrink: 0;
    background: var(--pico-card-background-color);
    border: 2px solid var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
    color: var(--pico-color);
    text-decoration: none;
    font-size: 1.125rem;
    transition: all 0.3s;
}

.social-link:hover {
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

/* 3D Viewer */
#viewer {
    flex: 1;
    position: relative;
    min-height: 0;
    overflow: hidden;
}

#viewer canvas {
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

/* Prevent double-tap zoom on all viewer buttons */
.settings-btn,
.toggle-controls-btn,
.pan-arrow,
.zoom-button,
.ruler-point,
#target-indicator,
#download-btn {
    touch-action: manipulation;
}

#loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 1rem;
    text-align: center;
    display: none;
    padding: 1.5rem 2rem;
    background: rgba(0, 0, 0, 0.9);
    border-radius: var(--pico-border-radius);
    border: 1px solid var(--pico-muted-border-color);
    min-width: 250px;
    white-space: nowrap;
}

.spinner {
    border: 3px solid var(--pico-muted-border-color);
    border-top: 3px solid var(--pico-primary);
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    animation: spin 1s linear infinite;
    margin: 0 auto 0.625rem;
}

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

/* Settings button (wrench) */
.settings-btn {
    position: absolute;
    top: 1rem;
    left: 1rem;
    width: 3rem;
    height: 3rem;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
    color: var(--pico-color);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
    z-index: 5;
}

.settings-btn:hover,
.settings-btn:active {
    background: rgba(0, 0, 0, 0.9);
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

.settings-btn:active {
    transform: scale(0.95);
}

.settings-btn.active {
    background: rgba(0, 123, 255, 0.3);
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

/* Toggle controls button */
.toggle-controls-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 3rem;
    height: 3rem;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
    color: var(--pico-color);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
    z-index: 5;
}

.toggle-controls-btn:hover,
.toggle-controls-btn:active {
    background: rgba(0, 0, 0, 0.9);
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

.toggle-controls-btn:active {
    transform: scale(0.95);
}

/* Hide controls when toggled */
.viewer-control.hidden {
    display: none !important;
}

/* Pan controls */
#pan-controls {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.pan-arrow {
    position: absolute;
    width: 3rem;
    height: 3rem;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
    color: var(--pico-color);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: auto;
    margin: 0;
    padding: 0;
}

.pan-arrow:hover,
.pan-arrow:active {
    background: rgba(0, 0, 0, 0.9);
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

.pan-arrow:active {
    transform: scale(0.95);
}

.pan-up {
    top: 1rem;
    left: 50%;
    transform: translateX(-50%);
}

.pan-up:active {
    transform: translateX(-50%) scale(0.95);
}

.pan-down {
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
}

.pan-down:active {
    transform: translateX(-50%) scale(0.95);
}

.pan-left {
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.pan-left:active {
    transform: translateY(-50%) scale(0.95);
}

.pan-right {
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.pan-right:active {
    transform: translateY(-50%) scale(0.95);
}

/* Zoom controls */
#zoom-controls {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.zoom-button {
    width: 3rem;
    height: 3rem;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
    color: var(--pico-color);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
}

.zoom-button:hover,
.zoom-button:active {
    background: rgba(0, 0, 0, 0.9);
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

.zoom-button:active {
    transform: scale(0.95);
}

.zoom-button.active {
    background: rgba(0, 123, 255, 0.3);
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

/* Target indicator (draggable red dot) */
#target-indicator {
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(255, 0, 0, 0.8);
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    cursor: move;
    z-index: 10;
    pointer-events: auto;
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
    transition: transform 0.1s;
}

#target-indicator:hover {
    transform: scale(1.2);
}

#target-indicator:active {
    transform: scale(0.9);
}

/* Left controls (ruler, etc) */
#left-controls {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Ruler points (same red dot style as target indicator) */
.ruler-point {
    position: absolute;
    width: 20px;
    height: 20px;
    background: rgba(255, 0, 0, 0.8);
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    cursor: move;
    z-index: 10;
    pointer-events: auto;
    box-shadow: 0 0 10px rgba(255, 0, 0, 0.5);
    transition: transform 0.1s;
}

.ruler-point:hover {
    transform: scale(1.2);
}

.ruler-point:active {
    transform: scale(0.9);
}

.ruler-point.dragging {
    transform: scale(1.3);
}

/* Ruler line between points */
#ruler-line {
    position: absolute;
    height: 2px;
    background: rgba(255, 0, 0, 0.8);
    transform-origin: left center;
    z-index: 9;
    pointer-events: none;
    box-shadow: 0 0 4px rgba(255, 0, 0, 0.5);
}

/* Ruler measurement label */
#ruler-measurement {
    position: absolute;
    top: -24px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.85);
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-family: 'Geist Mono', monospace;
    white-space: nowrap;
    border: 1px solid rgba(255, 0, 0, 0.5);
    pointer-events: auto;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
}

#ruler-measurement:hover {
    background: rgba(40, 40, 40, 0.95);
    border-color: rgba(255, 0, 0, 0.8);
}

#ruler-measurement:active {
    background: rgba(60, 60, 60, 0.95);
}

/* Error messages */
.error {
    color: var(--pico-del-color);
    margin-top: 0.5rem;
    font-size: 0.875rem;
    padding: 0.5rem;
    background: rgba(255, 68, 68, 0.1);
    border-radius: var(--pico-border-radius);
}

/* Save section */
#save-section {
    display: none;
    margin-top: 0.625rem;
    flex-shrink: 0;
}

.save-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0 1rem;
    height: 3rem;
    width: 100%;
    border-radius: var(--pico-border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    margin: 0;
    background: var(--pico-primary);
    border: 2px solid var(--pico-primary);
    color: #fff;
}

.save-btn:hover {
    background: var(--pico-primary-hover);
    border-color: var(--pico-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 123, 255, 0.3);
}

.save-btn:active {
    transform: translateY(0);
}

.save-btn i {
    font-size: 1rem;
}

/* Share URL section */
#share-url {
    display: none;
    margin-top: 0.625rem;
    flex-shrink: 0;
}

#share-url .input-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--pico-card-background-color);
    border: 1px solid var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
    padding: 0.25rem 0.375rem 0.25rem 0.75rem;
}

#share-url input {
    flex: 1;
    padding: 0.5rem 0;
    background: transparent;
    border: none;
    color: var(--pico-color);
    font-family: 'Geist Mono', monospace;
    font-size: 0.8125rem;
    margin: 0;
}

#share-url input:focus {
    outline: none;
    box-shadow: none;
}

#share-url button#copy-btn {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
    margin: 0;
    width: auto;
    height: auto;
    flex-shrink: 0;
}

#share-url .expiry-notice {
    font-size: 0.6875rem;
    color: #f90;
    margin-top: 0.5rem;
}

/* Invite modal - let Pico handle most of it */
#invite-modal::backdrop {
    background: rgba(0, 0, 0, 0.9);
}

#invite-modal article {
    max-width: 22.5rem;
}

#invite-modal header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#invite-modal h3 {
    margin: 0;
    font-size: 1.1rem;
}

.modal-close {
    background: none;
    border: none;
    color: var(--pico-muted-color);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    margin: -0.25rem -0.5rem -0.25rem 0;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--pico-color);
}

#invite-modal .error-text {
    color: var(--pico-del-color);
    font-size: 0.75rem;
    margin-top: 0.25rem;
    display: none;
}

/* Upload modal */
#upload-modal::backdrop {
    background: rgba(0, 0, 0, 0.9);
}

#upload-modal article {
    max-width: 28rem;
}

#upload-modal header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#upload-modal h3 {
    margin: 0;
    font-size: 1.1rem;
}

#upload-modal .modal-content {
    padding: 0;
}

/* About modal */
#about-modal::backdrop {
    background: rgba(0, 0, 0, 0.9);
}

#about-modal article {
    max-width: 32rem;
}

#about-modal header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#about-modal h3 {
    margin: 0;
    font-size: 1.1rem;
}

.about-content {
    font-size: 0.875rem;
    line-height: 1.6;
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.about-content h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9375rem;
    color: var(--pico-primary);
}

.about-content h4:first-of-type {
    margin-top: 1rem;
}

.about-content p {
    margin-bottom: 0.75rem;
}

.about-content ol,
.about-content ul {
    margin: 0.5rem 0;
    padding-left: 2rem;
}

.about-content li {
    margin-bottom: 0.5rem;
}

.beta-notice {
    margin-top: 1.5rem;
    padding: 0.75rem;
    background: rgba(0, 123, 255, 0.1);
    border-left: 3px solid var(--pico-primary);
    border-radius: 0.25rem;
    font-size: 0.8125rem;
    color: var(--pico-muted-color);
}

.model-credit {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--pico-muted-color);
    text-align: center;
}

.about-logo {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 1.5rem 0 1rem 0;
}

.about-logo-img {
    height: 60px;
    width: auto;
}

.file-upload-wrapper-modal {
    position: relative;
}

input[type="file"]#file-input-modal {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 1;
}

.file-upload-label-modal {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    background: var(--pico-card-background-color);
    border: 2px dashed var(--pico-muted-border-color);
    border-radius: var(--pico-border-radius);
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    gap: 0.75rem;
    min-height: 15rem;
}

.file-upload-label-modal:hover {
    border-color: var(--pico-primary);
    background: rgba(255, 255, 255, 0.02);
}

.file-upload-label-modal.drag-over {
    border-color: var(--pico-primary);
    background: rgba(0, 123, 255, 0.1);
}

.upload-icon {
    font-size: 3rem;
    color: var(--pico-muted-color);
    transition: color 0.3s;
}

.file-upload-label-modal:hover .upload-icon {
    color: var(--pico-primary);
}

.file-types {
    font-size: 0.6875rem;
    color: var(--pico-muted-color);
}

/* Responsive adjustments */
@media (min-width: 768px) {
    #controls {
        padding: 1.25rem;
    }

    #share-url.visible {
        display: block;
    }
}

/* ===========================================
   Admin Page Styles
   =========================================== */
body.admin-page {
    overflow: auto;
    position: static;
    width: auto;
    height: auto;
    padding: 0;
}

.admin-page .back-link {
    margin-bottom: 1rem;
    display: inline-block;
}

.admin-page .section {
    margin-bottom: 3rem;
}

.admin-page .message {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.admin-page .message.success {
    background: rgba(0, 255, 0, 0.1);
    border: 1px solid green;
}

.admin-page .message.error {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid red;
}

.admin-page .empty-state {
    color: var(--pico-muted-color);
    font-style: italic;
}

/* List items (codes and models) */
.admin-page .code-list,
.admin-page .model-list {
    margin: 1rem 0;
}

.admin-page .code-item,
.admin-page .model-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--pico-muted-border-color);
    gap: 1rem;
}

.admin-page .code-item:last-child,
.admin-page .model-item:last-child {
    border-bottom: none;
}

.admin-page .code-info,
.admin-page .model-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
    min-width: 0;
}

.admin-page .code-text {
    font-size: 1.1rem;
}

.admin-page .code-date,
.admin-page .model-meta {
    font-size: 0.75rem;
    color: var(--pico-muted-color);
}

/* Model-specific styles */
.admin-page .model-id {
    font-size: 0.9rem;
    word-break: break-all;
}

.admin-page .model-id a {
    color: var(--pico-primary);
    text-decoration: none;
}

.admin-page .model-id a:hover {
    text-decoration: underline;
}

.admin-page .model-ext {
    display: inline-block;
    background: var(--pico-primary);
    color: #fff;
    padding: 0.1rem 0.4rem;
    border-radius: 0.25rem;
    font-size: 0.65rem;
    text-transform: uppercase;
    margin-left: 0.5rem;
}

.admin-page .model-item.hidden {
    display: none;
}

/* Buttons */
.admin-page .delete-btn {
    background: var(--pico-del-color);
    border: none;
    padding: 0.25rem 0.75rem;
    margin: 0;
}

.admin-page .delete-icon-btn {
    background: transparent;
    border: 1px solid var(--pico-muted-border-color);
    color: var(--pico-muted-color);
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--pico-border-radius);
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.admin-page .delete-icon-btn:hover {
    background: rgba(255, 68, 68, 0.1);
    border-color: var(--pico-del-color);
    color: var(--pico-del-color);
}

.admin-page .load-more-btn {
    width: 100%;
    margin-top: 1rem;
    background: var(--pico-card-background-color);
    border: 1px solid var(--pico-muted-border-color);
    color: var(--pico-color);
}

.admin-page .load-more-btn:hover {
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

/* Add code form */
.admin-page .add-form {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.admin-page .add-form input {
    margin-bottom: 0;
    flex: 1;
    min-width: 200px;
}

.admin-page .add-form button {
    margin-bottom: 0;
    white-space: nowrap;
    width: auto;
}

/* Sort controls */
.admin-page .sort-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.admin-page .sort-label {
    font-size: 0.8rem;
    color: var(--pico-muted-color);
    margin-right: 0.25rem;
}

.admin-page .sort-btn {
    background: transparent;
    border: 1px solid var(--pico-muted-border-color);
    color: var(--pico-muted-color);
    padding: 0.35rem 0.65rem;
    margin: 0;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    border-radius: var(--pico-border-radius);
    cursor: pointer;
    transition: all 0.2s;
}

.admin-page .sort-btn:hover {
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

.admin-page .sort-btn.active {
    background: rgba(0, 123, 255, 0.1);
    border-color: var(--pico-primary);
    color: var(--pico-primary);
}

.admin-page .sort-btn .sort-arrow {
    font-size: 0.65rem;
    margin-left: 0.2rem;
}