/* Studio-specific color token overrides — warm terracotta palette */
:root {
    --md-primary: #E8623D;
    --md-on-primary: #FFFFFF;
    --md-primary-container: #FFF0EB;
    --md-on-primary-container: #8A3A1F;
    --md-inverse-primary: #FF7A4D;
}
.dark {
    --md-primary: #FF7A4D;
    --md-on-primary: #4A1A0A;
    --md-primary-container: #5C2A18;
    --md-on-primary-container: #FFD4C4;
    --md-inverse-primary: #E8623D;
}

/* Focus ring override — terracotta instead of blue */
.focus\:ring-blue-500:focus,
.focus\:ring-blue-500:focus-visible {
    --tw-ring-color: #E8623D !important;
    box-shadow: 0 0 0 2px #E8623D !important;
}

.no-underline {
    text-decoration: none !important;
}

@media (display-mode: standalone) {
    body {
        overscroll-behavior-y: contain;
    }
}

.dark select {
    background-color: transparent;
}

textarea:focus,
input:focus {
    outline: none;
}

/* Chat input: text is rendered directly by the textarea (text-gray-800 /
   dark:text-gray-100 utility classes). Terracotta caret matches the accent. */
#chat-input {
    caret-color: #E8623D;
}
.dark #chat-input {
    caret-color: #FF7A4D;
}

button {
    cursor: pointer;
}

/* Dark mode input colors for studio toolbar */
.dark input[type="number"],
.dark input[type="text"],
.dark input[type="date"],
.dark textarea,
.dark select {
    background-color: #252525 !important;
}

.dark input[type="number"]:focus,
.dark input[type="text"]:focus,
.dark input[type="date"]:focus,
.dark textarea:focus,
.dark select:focus {
    background-color: #2B2826 !important;
}

#chat-input {
    overflow-wrap: break-word;
    word-break: break-word;
    word-wrap: break-word;
    max-height: 155px;
}

.chat-container {
    min-height: 0;
}

/* Model mode dropdown — height cap (svh with vh fallback for older browsers) */
#model-mode-dropdown {
    max-height: 90vh;
    max-height: 90svh;
    overflow-x: hidden;
}

/* Desktop: JS sets top/bottom/right via inline styles (fixed positioning escapes overflow:hidden root).
   These rules only control transform-origin for the open/close animation.
   The JS also sets max-height to the chosen direction's available space
   so the dropdown never exceeds the viewport regardless of button position. */
@media (min-width: 768px) {
    #model-mode-dropdown {
        max-height: 85vh;
    }
    #model-mode-dropdown.dropdown-open-down {
        transform-origin: top right !important;
    }
    #model-mode-dropdown.dropdown-open-up {
        transform-origin: bottom right !important;
    }
}

/* Ensure Tools text is never shown on mobile */
@media (max-width: 999px) {
    #tools-menu-text {
        display: none !important;
    }
}

.sidebar-container {
    height: 100dvh;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Collapsible Sections */
.collapsible-header .chevron {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.collapsible-section.collapsed .chevron {
    transform: rotate(-90deg);
}

.collapsible-content {
    max-height: 2000px;
    /* High enough to show all content */
    opacity: 1;
    overflow: visible;
    transition: max-height 0.3s ease-in-out, opacity 0.2s ease-in-out, padding 0.3s ease-in-out;
}

.collapsible-section.collapsed .collapsible-content {
    max-height: 0;
    opacity: 0;
    padding-top: 0;
    padding-bottom: 0;
    pointer-events: none;
    overflow: hidden;
}

.collapsible-header:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

.dark .collapsible-header:hover {
    background-color: rgba(255, 255, 255, 0.05);
}


.chat-bubble:hover+.message-controls,
.message-controls:hover {
    opacity: 1 !important;
}

.flex-col:hover .message-controls {
    opacity: 1 !important;
}

body.generating .copy-btn,
body.generating .regenerate-msg-btn,
body.generating .copy-msg-btn,
body.generating .edit-msg-btn,
body.generating .fork-msg-btn {
    display: none !important;
}

/* Large Model Selector Dropdown (Reference Image Style) */
.large-model-selector .custom-select-wrapper {
    margin-top: 8px;
}

.large-model-selector .custom-select-trigger {
    height: 48px;
    border-radius: 24px;
    padding: 0 16px;
    background-color: #F2EDE6;
    border: 1px solid transparent;
    box-shadow: none;
}

.dark .large-model-selector .custom-select-trigger {
    background-color: #232020;
}

.large-model-selector .custom-select-trigger:hover {
    background-color: #F2EDE6;
}

.dark .large-model-selector .custom-select-trigger:hover {
    background-color: #2B2826;
}

.large-model-selector .current-value {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 500;
}

.large-model-selector .current-value::before {
    content: "";
    display: inline-block;
    width: 24px;
    height: 24px;
    background-image: url("img/spark.svg");
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
}

.large-model-selector .tune-icon {
    display: flex;
    align-items: center;
    color: #5f6368;
    margin-left: 8px;
    padding-left: 8px;
    border-left: 1px solid #dadce0;
}

.dark .large-model-selector .tune-icon {
    color: #9aa0a6;
    border-left-color: #3A3530;
}

/* Sidebar Sections */
#model-options-area {
    scrollbar-width: thin;
}

#user-preferences-area {
    background-color: transparent;
}

.settings-label {
    display: block;
    margin-bottom: 2px;
    color: #3A3530;
    font-size: 12px;
}

/* Custom Audio Player */
.custom-audio-player {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 400px;
    background: #F2EDE6;
    border-radius: 20px;
    padding: 12px;
    gap: 12px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    user-select: none;
}

.dark .custom-audio-player {
    background: #232020;
    border-color: rgba(255, 255, 255, 0.1);
}

.audio-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.audio-icon-wrapper {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: #E8623D;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.dark .audio-icon-wrapper {
    background: #FF7A4D;
    color: #4A1A0A;
}

.audio-controls-main {
    display: flex;
    align-items: flex-end;
    gap: 12px;
}

.play-pause-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #004a77;
    color: white !important;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1), background 0.2s;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border: none;
    flex-shrink: 0;
}

.play-pause-btn:hover {
    transform: scale(1.05);
    background: #003a5c;
}

.dark .play-pause-btn {
    background: #FF7A4D;
    color: #4A1A0A !important;
}

.dark .play-pause-btn:hover {
    background: #FFD4C4;
}

.progress-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.progress-bar-wrapper {
    position: relative;
    height: 6px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
    cursor: pointer;
    overflow: visible;
    /* Claim touch gestures so dragging the audio scrubber seeks instead of
       scrolling the page (setupAudioPlayers attaches a document touchmove). */
    touch-action: none;
}

.dark .progress-bar-wrapper {
    background: rgba(255, 255, 255, 0.1);
}

.progress-bar-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: #004a77;
    border-radius: 3px;
    width: 0%;
    pointer-events: none;
}

.dark .progress-bar-fill {
    background: #FF7A4D;
}

.progress-thumb {
    position: absolute;
    top: 50%;
    left: 0%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    background: #004a77;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: transform 0.1s;
    pointer-events: none;
}

.progress-bar-wrapper:hover .progress-thumb {
    transform: translate(-50%, -50%) scale(1.2);
}

.dark .progress-thumb {
    background: #FF7A4D;
}

.audio-time {
    font-size: 11px;
    color: #5f6368;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    font-family: monospace;
}

.dark .audio-time {
    color: #9aa0a6;
}

.audio-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.audio-action-btn {
    padding: 6px;
    border-radius: 50%;
    color: #5f6368 !important;
    transition: background 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.audio-action-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.dark .audio-action-btn {
    color: #E8E2DA !important;
}

.dark .audio-action-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.custom-audio-player .material-symbols-outlined {
    font-size: 24px;
}

/* ━━━ Model List View ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

.model-list-view {
    scrollbar-width: thin;
    scrollbar-color: rgba(0,0,0,0.15) transparent;
}

.model-filter-chip {
    user-select: none;
    -webkit-user-select: none;
    cursor: pointer;
}

.model-card {
    user-select: none;
    -webkit-user-select: none;
}

.model-card:active {
    opacity: 0.7;
}

/* Compact custom-select for the model panel sort control — overrides the
   pill-shaped global .custom-select-trigger so it matches the search input. */
#model-slide-panel .model-sort-select-wrap {
    width: auto;
    flex-shrink: 0;
}
#model-slide-panel .model-sort-select-wrap .custom-select {
    width: auto;
}
#model-slide-panel .model-sort-select-wrap .custom-select-trigger {
    height: 34px;
    padding: 0 8px 0 12px;
    border-radius: 8px;
    border: 1px solid rgb(209 213 219);
    background: #fff;
    box-shadow: none;
    font-size: 12px;
    white-space: nowrap;
}
.dark #model-slide-panel .model-sort-select-wrap .custom-select-trigger {
    border-color: #5f6368;
    background: #2B2826;
    box-shadow: none;
}
#model-slide-panel .model-sort-select-wrap .custom-select-trigger:hover {
    background: #f9fafb;
}
.dark #model-slide-panel .model-sort-select-wrap .custom-select-trigger:hover {
    background: #33302E;
}
#model-slide-panel .model-sort-select-wrap .custom-select-trigger .arrow .material-symbols-outlined {
    font-size: 18px;
}
#model-slide-panel .model-sort-select-wrap .custom-options {
    min-width: 160px;
}

/* ━━━ Model Slide Panel ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

#model-slide-panel {
    will-change: transform;
}

#model-panel-overlay {
    will-change: opacity;
}

#model-picker-trigger:active {
    transform: scale(0.98);
}

.play-pause-btn .material-symbols-outlined {
    font-size: 32px;
}

.dark .settings-label {
    color: #E8E2DA;
}

/* Storage Progress Bar Styles */
.storage-bar-progress {
    transition: width 0.7s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.4s ease-in-out, box-shadow 0.4s ease-in-out;
}

.storage-bar-progress.safe {
    background: linear-gradient(90deg, #E8623D, #D4562F);
    box-shadow: 0 0 8px rgba(232, 98, 61, 0.3);
}

.storage-bar-progress.danger {
    background: linear-gradient(90deg, #ef4444, #dc2626);
    box-shadow: 0 0 10px rgba(220, 38, 38, 0.4);
}

.custom-select-wrapper select {
    display: none !important;
}

.map-citation {
    display: inline-flex;
    transition: transform 0.2s ease;
}

.map-citation:hover {
    transform: scale(1.2);
}

/* Citations Styling */
.citations-container {
    vertical-align: super;
    font-size: 0.7em;
    font-weight: 500;
    margin-left: 1px;
    display: inline-flex;
    gap: 1px;
    user-select: none;
}

.citation-link {
    color: #E8623D;
    text-decoration: none;
    padding: 0 1px;
    border-radius: 2px;
    transition: background-color 0.2s;
    line-height: 1;
}

.citation-link:hover {
    background-color: rgba(232, 98, 61, 0.1);
    text-decoration: underline;
}

.dark .citation-link {
    color: #FF7A4D;
}

.dark .citation-link:hover {
    background-color: rgba(255, 122, 77, 0.2);
}

.kb-citation {
    display: inline;
    padding: 0 2px;
    margin: 0 1px;
    font-size: 0.75em;
    font-weight: 600;
    vertical-align: super;
    line-height: 1;
    color: #E8623D;
    background: rgba(232, 98, 61, 0.08);
    border: none;
    border-radius: 3px;
    cursor: pointer;
    transition: background-color 0.15s;
}

.kb-citation:hover {
    background: rgba(232, 98, 61, 0.18);
    text-decoration: underline;
}

.dark .kb-citation {
    color: #FF7A4D;
    background: rgba(255, 122, 77, 0.12);
}

.dark .kb-citation:hover {
    background: rgba(255, 122, 77, 0.22);
}

.kb-citation-popup {
    position: fixed;
    z-index: 9999;
    max-width: min(420px, calc(100vw - 16px));
    padding: 12px 14px;
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    font-size: 0.875rem;
    line-height: 1.45;
}

.dark .kb-citation-popup {
    background: #2B2826;
    border-color: #3A3530;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.kb-citation-popup-source {
    font-weight: 600;
    margin-bottom: 4px;
    color: #1f2937;
}

.dark .kb-citation-popup-source {
    color: #EDE8E3;
}

.kb-citation-popup-page {
    font-size: 0.75rem;
    color: #6b7280;
    margin-bottom: 6px;
}

.kb-citation-popup-snippet {
    color: #4b5563;
    white-space: pre-wrap;
}

.dark .kb-citation-popup-snippet {
    color: #9ca3af;
}

.markdown-body sup.citations-container {
    top: -0.4em;
    position: relative;
}

.chat-bubble {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow-wrap: break-word;
    word-wrap: break-word;
    word-break: break-word;
}

/* Quiz Details/Summary Styles */
details summary::-webkit-details-marker {
    display: none;
}

details summary {
    list-style: none;
}

.streaming-glow::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(232, 98, 61, 0.4), #E8623D, rgba(232, 98, 61, 0.4), transparent);
    background-size: 200% 100%;
    animation: streaming-loading 1.5s infinite cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 0 0 1rem 1rem;
}

.streaming-glow .word-fade-in-inline {
    animation: word-fade-in 0.2s ease-out forwards;
}

@keyframes word-fade-in {
    from {
        opacity: 0;
        transform: translateY(2px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes streaming-loading {
    from {
        background-position: 200% 0;
    }

    to {
        background-position: -200% 0;
    }
}

.markdown-body {
    background-color: transparent !important;
    color: inherit !important;
    font-size: inherit;
    line-height: 1.6 !important;
    transition: opacity 0.2s ease-in-out;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.markdown-body p {
    margin-top: 0.75rem !important;
    margin-bottom: 0.75rem !important;
}

.markdown-body p:first-child {
    margin-top: 0 !important;
}

.markdown-body p:last-child {
    margin-bottom: 0 !important;
}

/* Fix missing list styles due to Tailwind reset */
.markdown-body ul {
    list-style-type: disc !important;
    padding-left: 1.5rem !important;
    margin-top: 0.5rem !important;
    margin-bottom: 0.5rem !important;
}

.markdown-body ol {
    list-style-type: decimal !important;
    padding-left: 1.5rem !important;
    margin-top: 0.5rem !important;
    margin-bottom: 0.5rem !important;
}

.markdown-body li {
    margin-top: 0.25rem;
}

.markdown-body pre {
    background: #F2EDE6 !important;
    padding: 1rem;
    border-radius: 1rem;
    overflow-x: auto;
}

.markdown-body .code-block-container pre {
    background: transparent !important;
    padding: 1rem !important;
    border-radius: 0 !important;
    margin: 0 !important;
}

.markdown-body .code-block-container {
    background: white !important;
}

.dark .markdown-body .code-block-container {
    background: #0d0d0d !important;
}

.dark .markdown-body pre {
    background: #000000 !important;
}

.code-block-container {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.dark .code-block-container {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.copy-code-btn:active,
.run-html-btn:active {
    transform: scale(0.95);
}

.html-preview-area iframe {
    background: white;
}

.markdown-body code {
    font-family: 'Fira Code', monospace;
    background-color: transparent !important;
}

.dark .markdown-body code {
    background-color: transparent !important;
}

/* Markdown tables — themed explicitly so they never depend on which
   github-markdown CDN variant (light/dark) happens to be loaded. The text
   color is forced to `inherit` on .markdown-body, so without these rules the
   table keeps the CDN's white rows and becomes light-grey-on-white. We drive
   table colors off the app's own `.dark` class (toggled in theme.js). */
.markdown-body table {
    display: block;
    width: max-content;
    max-width: 100%;
    overflow-x: auto;
    border-collapse: collapse;
    margin: 0.75rem 0 !important;
    font-size: 0.9em;
}

.markdown-body table th,
.markdown-body table td {
    border: 1px solid #d1d5db !important;
    padding: 0.5rem 0.75rem !important;
    text-align: left;
    background-color: transparent !important;
    color: inherit !important;
}

.markdown-body table th {
    background-color: #F2EDE6 !important;
    font-weight: 600;
}

.markdown-body table tr {
    background-color: transparent !important;
    border-top: 1px solid #d1d5db !important;
}

.markdown-body table tr:nth-child(2n) {
    background-color: rgba(0, 0, 0, 0.03) !important;
}

.dark .markdown-body table th,
.dark .markdown-body table td {
    border-color: #3A3530 !important;
}

.dark .markdown-body table th {
    background-color: #232020 !important;
}

.dark .markdown-body table tr {
    border-top-color: #3A3530 !important;
}

.dark .markdown-body table tr:nth-child(2n) {
    background-color: rgba(255, 255, 255, 0.04) !important;
}

/* Markdown tables: the table_open/table_close renderer (message-renderer.js)
   wraps every table in .table-block-container. Without its own overflow-x,
   a wide AI-generated table forces the whole chat bubble wider instead of
   scrolling internally on narrow viewports. */
.table-block-container {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.dark,
.dark-mode {
    background-color: #1A1816;
    color: #EDE8E3;
}

/* Quiz specific styles */
#options-container button {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

#options-container button:not(:disabled):active {
    transform: scale(0.98);
}

#options-container button:disabled {
    cursor: default;
}

#quiz-overlay {
    animation: slideInUp 0.3s ease-out;
}

@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

/* Flashcard styles */
.perspective-1000 {
    perspective: 1000px;
}

/* Quiz UI Enhancements */
.quiz-opt-btn {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #FAF8F5;
}

.dark .quiz-opt-btn {
    background-color: #232020;
}

.quiz-opt-btn:not(:disabled):hover {
    background-color: #E0E3E7;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.dark .quiz-opt-btn:not(:disabled):hover {
    background-color: #2E2F2F;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.quiz-opt-btn:not(:disabled):active {
    transform: translateY(0);
}

.dark .quiz-opt-btn:not(:disabled):hover {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Specific feedback colors from the screenshot */
.dark .quiz-opt-correct {
    border-color: #2e7d32;
    background-color: #1b2e1b;
}

.dark .quiz-opt-incorrect {
    border-color: #d32f2f;
    background-color: #2e1b1b;
}


@keyframes slideInRight {
    from {
        transform: translateX(100%) rotate(15deg);
        opacity: 0;
    }

    to {
        transform: translateX(0) rotate(0deg);
        opacity: 1;
    }
}

@keyframes slideOutLeft {
    from {
        transform: translateX(0) rotate(0deg);
        opacity: 1;
    }

    to {
        transform: translateX(-100%) rotate(-15deg);
        opacity: 0;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%) rotate(-15deg);
        opacity: 0;
    }

    to {
        transform: translateX(0) rotate(0deg);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0) rotate(0deg);
        opacity: 1;
    }

    to {
        transform: translateX(100%) rotate(15deg);
        opacity: 0;
    }
}

.animate-slide-in-right {
    animation: slideInRight 0.1s ease-out forwards;
}

.animate-slide-out-left {
    animation: slideOutLeft 0.1s ease-out forwards;
}

.animate-slide-in-left {
    animation: slideInLeft 0.1s ease-out forwards;
}

.animate-slide-out-right {
    animation: slideOutRight 0.1s ease-out forwards;
}

.transform-style-3d {
    transform-style: preserve-3d;
}

.backface-hidden {
    backface-visibility: hidden;
}

.rotate-y-180 {
    transform: rotateY(180deg);
}

.rotate-90 {
    transform: rotate(90deg) !important;
}

.group[open] .group-open\:rotate-90 {
    transform: rotate(90deg) !important;
}

.text-gray-400,
.text-gray-500,
.text-gray-600,
.model-badge,
.time-badge,
.token-badge,
.message-controls {
    color: #3A3530 !important;
}

.dark .text-gray-300,
.dark .text-gray-400,
.dark .text-gray-500,
.dark .text-gray-600,
.dark-mode .text-gray-300,
.dark-mode .text-gray-400,
.dark-mode .text-gray-500,
.dark-mode .text-gray-600,
.dark .model-badge,
.dark .time-badge,
.dark .token-badge,
.dark .message-controls {
    color: #E8E2DA !important;
}

.dark .hover\:text-gray-700:hover,
.dark-mode .hover\:text-gray-700:hover {
    color: #e2e8f0;
}

.dark .text-blue-600,
.dark-mode .text-blue-600 {
    color: #FF7A4D;
}

.dark .bg-blue-100,
.dark-mode .bg-blue-100 {
    background-color: #5C2A18;
}

/* Multi-agent panels: token-breakdown table always scrolls in its own box
   rather than overflowing the chat bubble. */
.usage-breakdown-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Multi-agent panels: model badge + elapsed timer + dependency chips wrap
   onto their own line instead of overflowing the chat bubble on narrow
   viewports. */
@media (max-width: 480px) {
    .agent-panel summary .flex.items-start.gap-3 {
        gap: 0.5rem;
    }
    .agent-panel .agent-model-badge,
    .agent-panel .agent-elapsed-badge {
        font-size: 8px;
    }
    .agent-deps-row span {
        white-space: normal;
    }
    .usage-breakdown-table {
        min-width: 360px;
    }
}

.dark #chat-input,
.dark-mode #chat-input {
    background-color: transparent !important;
}

.dark .dark\:border-gray-600,
.dark-mode .dark\:border-gray-600 {
    border-color: #4b5563;
}

.dark .hover\:text-blue-600:hover,
.dark-mode .hover\:text-blue-600:hover {
    color: #FF7A4D;
}


.thinking-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Three-dot wave loading indicator */
.spark-dots {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.spark-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #E8623D;
    animation: spark-dot-wave 1.2s ease-in-out infinite;
}
.dark .spark-dots span {
    background: #FF7A4D;
}
.spark-dots span:nth-child(2) { animation-delay: 0.15s; }
.spark-dots span:nth-child(3) { animation-delay: 0.3s; }

@keyframes spark-dot-wave {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-4px); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .spark-dots span { animation: none; opacity: 0.6; }
}

.animate-spin {
    animation: spin 1s cubic-bezier(0.5, 0, 0.5, 1) infinite !important;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: .5;
    }
}

hr {
    height: inherit;
}

#sidebar.is-collapsed {
    width: 68px !important;
}

.sidebar-text,
#history-header,
#history-list {
    transition: opacity 0.2s ease;
    white-space: nowrap;
}

#history-list>div {
    -webkit-touch-callout: none;
}

#sidebar.is-collapsed .sidebar-text,
#sidebar.is-collapsed #history-header,
#sidebar.is-collapsed #history-list {
    opacity: 0;
    pointer-events: none;
    width: 0;
    max-width: 0;
    overflow: hidden;
}

.sidebar-btn {
    transition-property: padding, background-color, width, transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 300ms;
}

.sidebar-btn .material-symbols-outlined {
    transition: margin 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#sidebar.is-collapsed .sidebar-btn {
    padding-right: 0 !important;
    padding-left: 0 !important;
    justify-content: center;
}

#sidebar.is-collapsed .sidebar-btn .material-symbols-outlined,
#sidebar.is-collapsed .sidebar-btn > span:first-child {
    margin-right: 0 !important;
}

.container {
    max-width: unset !important;
}

.line-clamp-5 {
    display: -webkit-box;
    -webkit-line-clamp: 5;
    line-clamp: 5;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

@keyframes spin-once {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes fadeInFromTop {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-spin-once {
    animation: spin-once 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-fade-in-from-top {
    animation: fadeInFromTop 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Global App Loader — Spark Pulse */
#app-loader-overlay {
    opacity: 1;
    pointer-events: all;
}

/* Spark Loader: breathing ring + mark */
.spark-loader {
    position: relative;
}

.spark-loader-ring {
    border: 2px solid transparent;
    border-top-color: #E8623D;
    border-right-color: #E8623D;
    border-radius: 50%;
    animation: spark-ring-spin 1.4s var(--md-easing-standard, cubic-bezier(0.2, 0, 0, 1)) infinite;
}

.dark .spark-loader-ring {
    border-top-color: #FF7A4D;
    border-right-color: #FF7A4D;
}

.spark-loader-mark {
    animation: spark-mark-pulse 1.8s ease-in-out infinite;
    transform-origin: center;
}

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

@keyframes spark-mark-pulse {
    0%, 100% { transform: scale(0.85); opacity: 0.7; }
    50% { transform: scale(1.05); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
    .spark-loader-ring { animation: none; opacity: 0.4; }
    .spark-loader-mark { animation: none; opacity: 0.9; }
}

/* Legacy app-loader classes removed — replaced by .spark-loader above */

.katex-display {
    margin: 0.5rem;
}

@media (max-width: 1000px) {
    .user-message .chat-bubble {
        -webkit-touch-callout: none;
        -webkit-user-select: none;
        user-select: none;
    }
}

/* ============================================================
   MATERIAL DESIGN 3 — Studio Component Overrides
   Seed: Terracotta #E8623D · Dark scheme default
   ============================================================ */

/* --- Navigation Drawer / Rail --- */
.dark #sidebar,
.dark #sidebar.is-collapsed {
    background: var(--md-surface-container-low) !important;
    border-right-color: var(--md-outline-variant) !important;
}

.dark #right-sidebar {
    background: var(--md-surface-container-low) !important;
    border-left-color: var(--md-outline-variant) !important;
}

/* Sidebar button hover: MD3 state layer */
.dark .sidebar-btn:hover {
    background: color-mix(in srgb, var(--md-on-surface) 8%, transparent) !important;
}

/* Active chat history item: MD3 secondary-container indicator */
.dark .history-item.active-chat {
    background: var(--md-secondary-container) !important;
    color: var(--md-on-secondary-container) !important;
    border-radius: var(--md-shape-full) !important;
}

/* --- New Chat FAB style (dark mode) --- */
.dark #new-chat-btn {
    background: #E8623D !important;
    color: #FFFFFF !important;
    border-radius: var(--md-shape-xl) !important;
    box-shadow: 0 1px 2px rgba(0,0,0,0.3), 0 2px 6px rgba(0,0,0,0.15) !important;
    transition: background var(--md-duration-s) var(--md-easing-standard),
                transform var(--md-duration-s) var(--md-easing-standard),
                box-shadow var(--md-duration-s) var(--md-easing-standard) !important;
}
.dark #new-chat-btn:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.35), 0 6px 12px rgba(0,0,0,0.2) !important;
    transform: scale(1.02);
}

/* Temp chat button: MD3 tonal */
.dark #temp-chat-btn:hover {
    background: color-mix(in srgb, var(--md-on-surface) 8%, transparent) !important;
}

/* --- Header (unified with main chat area — no separate surface) --- */
.dark header {
    background: transparent !important;
    border-bottom: none !important;
}

/* Header icon buttons: MD3 state layer */
.dark header button:hover {
    background: color-mix(in srgb, var(--md-on-surface) 8%, transparent) !important;
}

/* --- Chat Input: MD3 Filled Text Field --- */
.md3-text-field-container {
    background: var(--md-surface-container-highest) !important;
    border-radius: var(--md-shape-xl) var(--md-shape-xl) 0 0 !important;
    border: none !important;
    box-shadow: none !important;
    transition: box-shadow var(--md-duration-s) var(--md-easing-standard) !important;
}
@media (min-width: 1000px) {
    .md3-text-field-container {
        border-radius: var(--md-shape-xl) !important;
    }
}
.md3-text-field-container:focus-within {
    box-shadow: 0 0 0 2px #E8623D,
                0 6px 32px rgba(232,98,61,0.2) !important;
}

/* --- Send Button: terracotta FAB --- */
#send-btn {
    background: #E8623D !important;
    color: #FFFFFF !important;
    border-radius: var(--md-shape-lg) !important;
    width: 40px !important;
    height: 40px !important;
    box-shadow: 0 1px 2px rgba(0,0,0,0.3) !important;
    transition: background var(--md-duration-s) var(--md-easing-standard),
                transform var(--md-duration-s) var(--md-easing-standard),
                box-shadow var(--md-duration-s) var(--md-easing-standard),
                color var(--md-duration-s) var(--md-easing-standard) !important;
}
#send-btn:disabled {
    background: transparent !important;
    color: var(--md-on-surface-variant) !important;
    opacity: 0.38 !important;
    box-shadow: none !important;
}
#send-btn:not(:disabled):hover {
    background: #D4562F !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.4) !important;
    transform: scale(1.06);
}
#send-btn:not(:disabled):active {
    transform: scale(0.94) !important;
}

/* Stop button: MD3 tonal */
.dark #stop-btn {
    background: var(--md-surface-container-high) !important;
    color: var(--md-on-surface) !important;
    border-radius: var(--md-shape-full) !important;
}
.dark #stop-btn:hover {
    background: var(--md-surface-container-highest) !important;
}

/* --- MD3 Assist Chips (suggestion buttons) --- */
.md3-assist-chip {
    height: 32px;
    padding: 0 16px 0 8px;
    border-radius: var(--md-shape-sm);
    background: var(--md-surface-container-low);
    border: 1px solid var(--md-outline-variant);
    color: var(--md-on-surface);
    font-size: 14px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: 0 1px 2px rgba(0,0,0,0.3);
    transition: background var(--md-duration-s) var(--md-easing-standard),
                box-shadow var(--md-duration-s) var(--md-easing-standard);
}
.md3-assist-chip:hover {
    background: color-mix(in srgb, var(--md-on-surface) 8%, var(--md-surface-container-low));
    box-shadow: 0 1px 4px rgba(0,0,0,0.35), 0 2px 6px rgba(0,0,0,0.2);
}
.md3-assist-chip .material-symbols-outlined {
    font-size: 18px;
    color: #E8623D;
    transition: transform var(--md-duration-s) var(--md-easing-standard);
}
.md3-assist-chip:hover .material-symbols-outlined {
    transform: scale(1.1);
}

/* --- MD3 Input Chips (tool chips) --- */
.dark #dynamic-tool-chip,
.dark #grounding-chip,
.dark #maps-chip,
.dark #url-context-chip {
    background: color-mix(in srgb, #FF7A4D 12%, transparent) !important;
    border: 1px solid var(--md-outline-variant) !important;
    border-radius: var(--md-shape-sm) !important;
}
.dark #dynamic-tool-chip *,
.dark #grounding-chip *,
.dark #maps-chip *,
.dark #url-context-chip * {
    color: #FF7A4D !important;
}
.dark #dynamic-tool-icon,
.dark #dynamic-tool-text {
    color: #FF7A4D !important;
}

/* --- MD3 Menus / Dropdowns --- */
.dark #upload-dropdown,
.dark #tools-dropdown,
.dark #model-mode-dropdown,
.dark #settings-dropdown,
.dark #user-dropdown {
    background: var(--md-surface-container) !important;
    border: 1px solid var(--md-outline-variant) !important;
    border-radius: var(--md-shape-md) !important;
    box-shadow: 0 2px 6px 2px rgba(0,0,0,0.15), 0 1px 2px rgba(0,0,0,0.3) !important;
}
/* Dropdown open easing (applied by existing JS) */
.dark #upload-dropdown:not([style*="translate-y-full"]),
.dark #tools-dropdown:not([style*="translate-y-full"]),
.dark #model-mode-dropdown:not([style*="translate-y-full"]) {
    transition: transform var(--md-duration-m) var(--md-easing-enter),
                opacity var(--md-duration-s) var(--md-easing-standard) !important;
}
/* Row hover state layer */
.dark #upload-dropdown button:hover,
.dark #tools-dropdown button:hover,
.dark #model-mode-dropdown button:hover,
.dark #settings-dropdown button:hover,
.dark #settings-dropdown a:hover {
    background: color-mix(in srgb, var(--md-on-surface) 8%, var(--md-surface-container)) !important;
}

/* Settings submenu panels */
.dark #settings-dropdown-theme,
.dark #settings-dropdown-lang,
.dark #settings-dropdown-resplang,
.dark #settings-dropdown-dest {
    background: var(--md-surface-container) !important;
    border: 1px solid var(--md-outline-variant) !important;
    border-radius: var(--md-shape-md) !important;
}

/* Desktop: flyout submenus */
/* Hide right arrow on mobile (shown only on desktop via media query below) */
.settings-arrow-right { display: none; }

@media (min-width: 1000px) {
    .settings-submenu-group .settings-arrow-down { display: none !important; }
    .settings-submenu-group .settings-arrow-right { display: inline-flex !important; }

    .settings-submenu-group .settings-submenu-panel {
        display: flex !important;
        flex-direction: column;
        position: fixed;
        left: 0;
        top: 0;
        width: 220px;
        visibility: hidden;
        opacity: 0;
        pointer-events: none;
        transition: opacity 120ms ease, visibility 120ms ease;
        background: #F8F5F1;
        border-radius: 1rem;
        box-shadow: 0 4px 16px rgba(0,0,0,0.15);
        border: 1px solid rgba(0,0,0,0.08);
        z-index: 9999;
        padding: 8px 0;
    }
    .dark .settings-submenu-group .settings-submenu-panel {
        background: var(--md-surface-container, #2d2e30);
        border-color: var(--md-outline-variant, rgba(255,255,255,0.12));
        box-shadow: 0 4px 16px rgba(0,0,0,0.5);
    }
    /* Visibility is driven exclusively by JS (.is-open), not :hover, so that
       hover and click share one open/close mechanism and only one flyout
       can ever be visible at a time. */
    .settings-submenu-group.is-open .settings-submenu-panel {
        visibility: visible;
        opacity: 1;
        pointer-events: auto;
    }

    /* Hover bridge: the panel is anchored 4px outside the dropdown, so the
       pointer would otherwise cross a dead gap on its way to the options and
       fire mouseleave on the group. This invisible strip is a child of the
       panel (hence of the group), so the gap stays "inside" the hover area for
       the panel's full height — including diagonal travel to a lower option. */
    .settings-submenu-group .settings-submenu-panel::before {
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        width: 10px;
    }
    .settings-submenu-group .settings-submenu-panel[data-flyout-side="right"]::before {
        left: -10px;
    }
    .settings-submenu-group .settings-submenu-panel[data-flyout-side="left"]::before {
        right: -10px;
    }

    #settings-dropdown-connectors {
        width: 300px;
    }
}

/* --- Model Mode Dropdown icons: terracotta --- */
.dark #model-mode-dropdown .text-blue-500,
.dark #right-sidebar .text-blue-500,
.dark [id^="check-"] {
    color: #FF7A4D !important;
}

/* Selected-option check icons in settings submenus (language, theme,
   response-language, storage destination) use the class hook rather than an
   id, so they're not covered by the [id^="check-"] rule above. Give the
   active check the same accent so the chosen option is clearly marked. */
.check-icon {
    color: #FF7A4D;
}

/* --- Welcome screen: MD3 Expressive + Space Grotesk --- */
#greeting-sparkle {
    font-family: "Space Grotesk", system-ui, sans-serif !important;
    letter-spacing: -0.025em !important;
    background: linear-gradient(92deg, #FF7A4D 0%, #E8623D 45%, #C44A2E 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
    background-clip: text !important;
}
#greeting-text {
    font-family: "Space Grotesk", system-ui, sans-serif !important;
    letter-spacing: -0.02em !important;
}
.dark #greeting-text {
    color: var(--md-on-surface) !important;
}

/* Expressive background orbs — visible on welcome screen */
.dark main:has(#welcome-message:not(.hidden))::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(50% 40% at 20% 30%, rgba(232,98,61,0.06), transparent 70%),
        radial-gradient(40% 50% at 80% 70%, rgba(255,122,77,0.04), transparent 70%);
}

/* Main background: MD3 surface-dim */
.dark main {
    background-color: var(--md-surface-dim) !important;
}
.dark main:has(#welcome-message:not(.hidden)) {
    background-color: var(--md-surface-dim) !important;
}

/* --- Audio Player: terracotta tonal --- */
.play-pause-btn {
    background: #E8623D !important;
    color: #FFFFFF !important;
    border-radius: var(--md-shape-full) !important;
    transition: transform var(--md-duration-s) var(--md-easing-standard),
                box-shadow var(--md-duration-s) var(--md-easing-standard) !important;
}
.play-pause-btn:hover {
    background: #D4562F !important;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0,0,0,0.25) !important;
}

.progress-bar-fill {
    background: #E8623D !important;
}
.progress-thumb {
    background: #E8623D !important;
}

/* --- Streaming glow: terracotta instead of blue --- */
.streaming-glow::after {
    background: linear-gradient(90deg, transparent, rgba(232,98,61,0.4), #E8623D, rgba(232,98,61,0.4), transparent) !important;
}

/* --- App loader: terracotta progress bar --- */
#app-loader-progress-fill {
    background: #E8623D !important;
}

/* --- Credit chip: warm tonal --- */
.dark #credit-chip {
    background: color-mix(in srgb, #FF7A4D 15%, transparent) !important;
    color: #FF7A4D !important;
    border-radius: var(--md-shape-full) !important;
}
.dark #credit-chip:hover {
    background: color-mix(in srgb, #FF7A4D 25%, transparent) !important;
}

/* --- TTS buttons: terracotta filled --- */
.dark #tts-generate-btn {
    background: #E8623D !important;
    color: #FFFFFF !important;
    border-radius: var(--md-shape-lg) !important;
    transition: box-shadow var(--md-duration-s) var(--md-easing-standard),
                transform var(--md-duration-s) var(--md-easing-standard) !important;
}
.dark #tts-generate-btn:hover {
    background: #D4562F !important;
    box-shadow: 0 2px 8px rgba(0,0,0,0.4) !important;
    transform: translateY(-1px);
}

/* --- Right sidebar sections: MD3 collapsible header --- */
.dark .collapsible-header:hover {
    background-color: color-mix(in srgb, var(--md-on-surface) 8%, transparent) !important;
}

/* --- Raw mode toggle: MD3 indigo --- */
#raw-mode-toggle:checked ~ div,
#refine-prompt-toggle:checked ~ div,
#research-mode-toggle:checked ~ div {
    background-color: var(--md-primary) !important;
}

/* --- Offline indicator: MD3 error container --- */
.dark #offline-indicator {
    background: #93000A !important;
}

/* --- Focus-visible ring: MD3 primary --- */
:focus-visible {
    outline: 2px solid var(--md-primary);
    outline-offset: 0;
}

/* The composer already shows focus via .md3-text-field-container:focus-within,
   so suppress the redundant per-element outline to avoid a doubled focus ring. */
.md3-text-field-container :focus-visible {
    outline: none !important;
}

/* --- Mention picker: MD3 menu style --- */
.dark #mention-picker {
    background: var(--md-surface-container) !important;
    border: 1px solid var(--md-outline-variant) !important;
    border-radius: var(--md-shape-md) !important;
}

/* --- Settings label (right sidebar): MD3 label style --- */
.dark .settings-label {
    color: var(--md-on-surface-variant) !important;
}

/* --- Storage bar progress: terracotta --- */
.storage-bar-progress.safe {
    background: linear-gradient(90deg, #E8623D, #D4562F) !important;
    box-shadow: 0 0 8px rgba(232, 98, 61, 0.3) !important;
}

/* --- Project working-set tray (header) --- */
.working-set-tray-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
    padding: 6px 10px;
    border-radius: 12px;
    border: 1px solid #E8E2DA;
    background: #FAF8F5;
}
.dark .working-set-tray-inner {
    border-color: #3A3530;
    background: #1F1C1A;
}
.working-set-tray-label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
    font-size: 12px;
    font-weight: 600;
    color: #8A8278;
}
.working-set-chips {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    overflow-x: auto;
    scrollbar-width: thin;
}
.working-set-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    max-width: 180px;
    padding: 4px 8px;
    border-radius: 999px;
    border: 1px solid #E8E2DA;
    background: #fff;
    color: #2A2725;
    font-size: 12px;
    text-decoration: none;
    white-space: nowrap;
}
.dark .working-set-chip {
    border-color: #3A3530;
    background: #2B2826;
    color: #EDE8E3;
}
.working-set-chip-label {
    overflow: hidden;
    text-overflow: ellipsis;
}
.working-set-chip-remove {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin-left: 2px;
    border: none;
    background: transparent;
    color: inherit;
    opacity: 0.65;
    cursor: pointer;
}
.working-set-chip-remove:hover { opacity: 1; }
.working-set-add-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    border: 1px dashed #C4B8AE;
    background: transparent;
    color: #8A8278;
    cursor: pointer;
}
.working-set-add-btn:hover {
    border-color: #E8623D;
    color: #E8623D;
}

/* create_slides live phase strip (Slides → Images) */
.slides-result-block .slides-phase-steps {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.slides-result-block .slides-phase-step {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: #9ca3af;
}
.dark .slides-result-block .slides-phase-step { color: #6b7280; }
.slides-result-block .slides-phase-icon {
    font-size: 14px !important;
    line-height: 1;
}
.slides-result-block .slides-phase-active {
    color: #E8623D;
}
.dark .slides-result-block .slides-phase-active { color: #f0977c; }
.slides-result-block .slides-phase-active .slides-phase-icon {
    animation: slides-phase-spin 0.9s linear infinite;
}
.slides-result-block .slides-phase-done {
    color: #16a34a;
}
.dark .slides-result-block .slides-phase-done { color: #4ade80; }
.slides-result-block .slides-phase-sep {
    width: 14px;
    height: 2px;
    border-radius: 1px;
    background: #d1d5db;
    flex-shrink: 0;
}
.dark .slides-result-block .slides-phase-sep { background: #4b5563; }
.slides-result-block.slides-gen-ready {
    border-color: rgba(22, 163, 74, 0.35);
}
@keyframes slides-phase-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
    .slides-result-block .slides-phase-active .slides-phase-icon { animation: none; }
}