/* =====================================================================
   CowAgent Console Styles
   ===================================================================== */

/* Animations */
@keyframes pulseDot {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* Scrollbar */
* { scrollbar-width: thin; scrollbar-color: #94a3b8 transparent; }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #94a3b8; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #64748b; }
.dark ::-webkit-scrollbar-thumb { background: #475569; }
.dark ::-webkit-scrollbar-thumb:hover { background: #64748b; }

/* Generic Tooltip (via data-tooltip attribute) */
[data-tooltip] {
    position: relative;
}
[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 50%;
    bottom: calc(100% + 8px);
    transform: translateX(-50%);
    padding: 5px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 400;
    line-height: 1.4;
    white-space: nowrap;
    background: #1e293b;
    color: #e2e8f0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 100;
}
[data-tooltip-pos="bottom"]::after {
    bottom: auto;
    top: calc(100% + 8px);
}
.dark [data-tooltip]::after {
    background: #334155;
    color: #f1f5f9;
}
[data-tooltip]:hover::after {
    opacity: 1;
}
[data-tooltip=""]:hover::after {
    display: none;
}

/* Sidebar */
.sidebar-item.active {
    background: rgba(255, 255, 255, 0.08);
    color: #FFFFFF;
}
.sidebar-item.active .item-icon { color: #4ABE6E; }

/* Session Panel */
.session-panel {
    width: 220px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background: #fafafa;
    border-right: 1px solid #e5e7eb;
    height: 100vh;
    overflow: hidden;
    transition: width 0.2s ease;
}
.dark .session-panel {
    background: #111111;
    border-right-color: rgba(255, 255, 255, 0.08);
}
.session-panel.hidden { display: none; }
.session-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid #e5e7eb;
    flex-shrink: 0;
}
.dark .session-panel-header { border-bottom-color: rgba(255, 255, 255, 0.08); }
.session-panel-title {
    font-size: 14px;
    font-weight: 600;
    color: #374151;
}
.dark .session-panel-title { color: #d1d5db; }
.session-panel-close {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: none;
    background: none;
    color: #9ca3af;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    font-size: 12px;
}
.session-panel-close:hover {
    background: #f3f4f6;
    color: #374151;
}
.dark .session-panel-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #e5e5e5;
}
.session-panel-new {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 10px 12px;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px dashed #d1d5db;
    background: none;
    color: #6b7280;
    font-size: 13px;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
    flex-shrink: 0;
}
.session-panel-new:hover {
    border-color: #9ca3af;
    color: #374151;
    background: #f9fafb;
}
.dark .session-panel-new {
    border-color: rgba(255, 255, 255, 0.12);
    color: #9ca3af;
}
.dark .session-panel-new:hover {
    border-color: rgba(255, 255, 255, 0.25);
    color: #e5e5e5;
    background: rgba(255, 255, 255, 0.04);
}

/* Session List */
.session-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 8px;
    scrollbar-width: none;
}
.session-list:hover { scrollbar-width: thin; }
.session-list::-webkit-scrollbar { width: 4px; background: transparent; }
.session-list::-webkit-scrollbar-thumb { background: transparent; border-radius: 2px; }
.session-list:hover::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.2); }
.dark .session-list:hover::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); }
.session-group-label {
    padding: 10px 8px 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #9ca3af;
}
.dark .session-group-label { color: #525252; }
.session-empty {
    padding: 20px 12px;
    text-align: center;
    font-size: 13px;
    color: #9ca3af;
}
.session-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    margin: 1px 0;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    color: #6b7280;
    font-size: 13px;
    position: relative;
}
.dark .session-item { color: #a3a3a3; }
.session-item:hover {
    background: #f3f4f6;
    color: #111827;
}
.dark .session-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #e5e5e5;
}
.session-item.active {
    background: #e5e7eb;
    color: #111827;
}
.dark .session-item.active {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}
.session-icon {
    flex-shrink: 0;
    font-size: 11px;
    color: #9ca3af;
    width: 16px;
    text-align: center;
}
.dark .session-icon { color: #525252; }
.session-item.active .session-icon { color: #4ABE6E; }
.session-title {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.session-delete {
    flex-shrink: 0;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    font-size: 10px;
    color: #9ca3af;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s, background 0.15s;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}
.session-item:hover .session-delete { opacity: 1; }
.session-delete:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}
.dark .session-delete:hover { background: rgba(239, 68, 68, 0.15); }

/* Rename button: shares the look of the delete button, sits to its left.
   Negative right margin tightens the gap to the delete button only. */
.session-rename {
    flex-shrink: 0;
    margin-right: -6px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: #9ca3af;
    font-size: 11px;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s, background 0.15s;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}
.session-item:hover .session-rename { opacity: 1; }
.session-rename:hover {
    color: #4ABE6E;
    background: rgba(74, 190, 110, 0.12);
}
.dark .session-rename:hover { background: rgba(74, 190, 110, 0.18); }

/* Inline title editor */
.session-title-input {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    font-family: inherit;
    color: #111827;
    background: #ffffff;
    border: 1px solid #4ABE6E;
    border-radius: 6px;
    padding: 2px 6px;
    outline: none;
}
.dark .session-title-input {
    color: #e5e5e5;
    background: rgba(255, 255, 255, 0.06);
    border-color: #4ABE6E;
}

/* Context Divider */
.context-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: #9ca3af;
}
.context-divider::before, .context-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, #d1d5db, transparent);
}
.dark .context-divider::before, .dark .context-divider::after {
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.12), transparent);
}
.context-divider span {
    font-size: 12px;
    white-space: nowrap;
    color: #9ca3af;
}

/* Confirm Modal */
.confirm-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity 0.2s ease;
}
.confirm-overlay.visible { opacity: 1; }
.confirm-modal {
    background: #fff;
    border-radius: 14px;
    width: 380px;
    max-width: 90vw;
    padding: 28px 24px 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.18);
    transform: scale(0.92);
    transition: transform 0.2s ease;
}
.confirm-overlay.visible .confirm-modal { transform: scale(1); }
.dark .confirm-modal {
    background: #1e1e1e;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.confirm-title {
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 8px;
}
.dark .confirm-title { color: #e5e7eb; }
.confirm-message {
    font-size: 14px;
    color: #6b7280;
    line-height: 1.5;
    margin-bottom: 24px;
}
.dark .confirm-message { color: #9ca3af; }
.confirm-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}
.confirm-btn {
    padding: 8px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.15s ease;
}
.confirm-btn-cancel {
    background: #f3f4f6;
    color: #374151;
}
.confirm-btn-cancel:hover { background: #e5e7eb; }
.dark .confirm-btn-cancel {
    background: rgba(255, 255, 255, 0.08);
    color: #d1d5db;
}
.dark .confirm-btn-cancel:hover { background: rgba(255, 255, 255, 0.14); }
.confirm-btn-ok {
    background: #ef4444;
    color: #fff;
}
.confirm-btn-ok:hover { background: #dc2626; }

/* Session panel overlay (mobile only, click to close) */
.session-panel-overlay {
    display: none;
}
@media (max-width: 768px) {
    .session-panel-overlay {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 44;
        background: rgba(0, 0, 0, 0.3);
    }
    .session-panel-overlay.hidden {
        display: none;
    }
}

/* Mobile: session panel as overlay */
@media (max-width: 768px) {
    .session-panel {
        position: fixed;
        top: 0;
        left: 0;
        z-index: 45;
        width: 220px;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
    }
    .dark .session-panel {
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
    }
}

/* Menu Groups */
.menu-group-items { max-height: 0; overflow: hidden; transition: max-height 0.25s ease-out; }
.menu-group.open .menu-group-items { max-height: 2000px; transition: max-height 0.35s ease-in; }
.menu-group .chevron { transition: transform 0.25s ease; }
.menu-group.open .chevron { transform: rotate(90deg); }

/* View Switching */
.view { display: none; height: 100%; }
.view.active { display: flex; flex-direction: column; }

/* Chat view is split horizontally: conversation + workspace panel */
#view-chat.active { flex-direction: row; }
.chat-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Markdown Content */
.msg-content p { margin: 0.5em 0; line-height: 1.7; }
.msg-content p:first-child { margin-top: 0; }
.msg-content p:last-child { margin-bottom: 0; }
.msg-content h1, .msg-content h2, .msg-content h3,
.msg-content h4, .msg-content h5, .msg-content h6 {
    margin-top: 1.2em; margin-bottom: 0.6em; font-weight: 600; line-height: 1.3;
}
.msg-content h1 { font-size: 1.4em; }
.msg-content h2 { font-size: 1.25em; }
.msg-content h3 { font-size: 1.1em; }
.msg-content ul { margin: 0.5em 0; padding-left: 1.8em; list-style: disc; }
.msg-content ol { margin: 0.5em 0; padding-left: 1.8em; list-style: decimal; }
.msg-content li { margin: 0.25em 0; }
.msg-content pre {
    border-radius: 8px; overflow-x: auto; margin: 0.8em 0;
    background: #f1f5f9; padding: 1em;
}
.dark .msg-content pre { background: #111111; }
.msg-content code {
    font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    font-size: 0.875em;
}
.msg-content :not(pre) > code {
    background: rgba(74, 190, 110, 0.1); color: #1C6B3B;
    padding: 2px 6px; border-radius: 4px;
}
.dark .msg-content :not(pre) > code {
    background: rgba(74, 190, 110, 0.15); color: #74E9A4;
}
.msg-content pre code { background: transparent; padding: 0; color: inherit; }
.msg-content blockquote {
    border-left: 3px solid #4ABE6E; padding: 0.5em 1em;
    margin: 0.8em 0; background: rgba(74, 190, 110, 0.05); border-radius: 0 6px 6px 0;
}
.dark .msg-content blockquote { background: rgba(74, 190, 110, 0.08); }
.msg-content table { border-collapse: collapse; width: 100%; margin: 0.8em 0; }
.msg-content th, .msg-content td {
    border: 1px solid #e2e8f0; padding: 8px 12px; text-align: left;
}
.dark .msg-content th, .dark .msg-content td { border-color: rgba(255,255,255,0.1); }
.msg-content th { background: #f1f5f9; font-weight: 600; }
.dark .msg-content th { background: #111111; }
.msg-content img { max-width: 100%; height: auto; border-radius: 8px; margin: 0.5em 0; }
.msg-content a { color: #35A85B; text-decoration: underline; }
.msg-content a:hover { color: #228547; }

/* Overrides for user bubble (white text on green bg) */
.user-bubble.msg-content a { color: #ffffff !important; text-decoration: underline; text-decoration-color: rgba(255,255,255,0.6); }
.user-bubble.msg-content a:hover { color: #e0f5e8 !important; text-decoration-color: #e0f5e8; }
.user-bubble.msg-content :not(pre) > code { background: rgba(255,255,255,0.2); color: #ffffff; }
.msg-content hr { border: none; height: 1px; background: #e2e8f0; margin: 1.2em 0; }
.dark .msg-content hr { background: rgba(255,255,255,0.1); }

/* SSE Streaming cursor */
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
.sse-streaming::after {
    content: '▋';
    display: inline-block;
    margin-left: 2px;
    color: #4ABE6E;
    animation: blink 0.9s step-end infinite;
    font-size: 0.85em;
    vertical-align: middle;
}

/* Agent steps (thinking summaries + tool indicators) */
.agent-steps:empty { display: none; }
.agent-steps:not(:empty) {
    margin-bottom: 0.625rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.08);
}
.dark .agent-steps:not(:empty) { border-bottom-color: rgba(255, 255, 255, 0.08); }

.agent-step {
    font-size: 0.75rem;
    line-height: 1.4;
    color: #94a3b8;
    margin-bottom: 0.25rem;
}
.agent-step:last-child { margin-bottom: 0; }

/* Thinking step - collapsible */
.agent-thinking-step .thinking-header {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    cursor: pointer;
    user-select: none;
}
.agent-thinking-step .thinking-header:hover { color: #64748b; }
.dark .agent-thinking-step .thinking-header:hover { color: #cbd5e1; }
.agent-thinking-step .thinking-header i:first-child { font-size: 0.625rem; margin-top: 1px; }
.agent-thinking-step .thinking-chevron {
    font-size: 0.5rem;
    margin-left: auto;
    transition: transform 0.2s ease;
    opacity: 0.5;
}
.agent-thinking-step.expanded .thinking-chevron { transform: rotate(90deg); }
.agent-thinking-step .thinking-full {
    display: none;
    margin-top: 0.375rem;
    margin-left: 1rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.02);
    border-radius: 6px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    font-size: 0.75rem;
    line-height: 1.5;
    color: #94a3b8;
    max-height: 300px;
    overflow-y: auto;
}
.dark .agent-thinking-step .thinking-full {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.04);
}
.agent-thinking-step.expanded .thinking-full { display: block; }
.agent-thinking-step .thinking-full p { margin: 0.25em 0; }
.agent-thinking-step .thinking-full p:first-child { margin-top: 0; }
.agent-thinking-step .thinking-full p:last-child { margin-bottom: 0; }
.agent-thinking-step .thinking-duration {
    font-size: 0.625rem;
    color: #b0b8c4;
    margin-bottom: 0.375rem;
}
/* Streaming reasoning: render as plain pre to avoid expensive markdown
   re-parsing on every chunk. Wrap long lines so the bubble width is
   respected and use the same font size/color as the rendered version. */
.agent-thinking-step .thinking-stream-pre {
    margin: 0;
    padding: 0;
    background: transparent;
    border: 0;
    font-family: inherit;
    font-size: inherit;
    line-height: 1.5;
    color: inherit;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
}

/* Content step - real text output frozen before tool calls */
.agent-content-step {
    font-size: 0.875rem;
    line-height: 1.6;
    color: inherit;
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.06);
}
.dark .agent-content-step { border-bottom-color: rgba(255, 255, 255, 0.06); }
.agent-content-step .agent-content-body p { margin: 0.25em 0; }
.agent-content-step .agent-content-body p:first-child { margin-top: 0; }
.agent-content-step .agent-content-body p:last-child { margin-bottom: 0; }

/* Tool step - collapsible */
.agent-tool-step .tool-header {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    cursor: pointer;
    user-select: none;
    padding: 1px 0;
    border-radius: 4px;
}
.agent-tool-step .tool-header:hover { color: #64748b; }
.dark .agent-tool-step .tool-header:hover { color: #cbd5e1; }
.agent-tool-step .tool-icon { font-size: 0.625rem; }
.agent-tool-step .tool-chevron {
    font-size: 0.5rem;
    margin-left: auto;
    transition: transform 0.2s ease;
    opacity: 0.5;
}
.agent-tool-step.expanded .tool-chevron { transform: rotate(90deg); }
.agent-tool-step .tool-time {
    font-size: 0.65rem;
    opacity: 0.6;
    margin-left: 0.25rem;
}

/* Tool detail panel */
.agent-tool-step .tool-detail {
    display: none;
    margin-top: 0.375rem;
    margin-left: 1rem;
    padding: 0.5rem;
    background: rgba(0, 0, 0, 0.02);
    border-radius: 6px;
    border: 1px solid rgba(0, 0, 0, 0.04);
}
.dark .agent-tool-step .tool-detail {
    background: rgba(255, 255, 255, 0.02);
    border-color: rgba(255, 255, 255, 0.04);
}
.agent-tool-step.expanded .tool-detail { display: block; }
.tool-detail-section { margin-bottom: 0.375rem; }
.tool-detail-section:last-child { margin-bottom: 0; }
.tool-detail-label {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.6;
    margin-bottom: 0.125rem;
}
.tool-detail-content {
    font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
    font-size: 0.7rem;
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 200px;
    overflow-y: auto;
    margin: 0;
    padding: 0.25rem 0;
    background: transparent;
    color: inherit;
}
.tool-error-text { color: #f87171; }
.tool-live-output:empty { display: none; }
.tool-streaming .tool-live-output:not(:empty)::after {
    content: ' ';
    display: inline-block;
    width: 0.45em;
    height: 1em;
    margin-left: 0.15em;
    vertical-align: -0.15em;
    background: currentColor;
    animation: tool-cursor-blink 1s steps(1) infinite;
}
@keyframes tool-cursor-blink { 50% { opacity: 0; } }

/* Log level highlighting */
.log-line { display: block; }
.log-line-debug    { color: #94a3b8; }
.log-line-info     { background-color: rgba(59, 130, 246, 0.08); }
.log-line-warning  { background-color: rgba(234, 179, 8, 0.15); color: #fde68a; }
.log-line-error    { background-color: rgba(239, 68, 68, 0.15); color: #fca5a5; }
.log-line-critical { background-color: rgba(239, 68, 68, 0.35); color: #ff4444; font-weight: bold;  }

/* Tool failed state */
.agent-tool-step.tool-failed .tool-name { color: #f87171; }

/* Config form controls */
#view-config input[type="text"],
#view-config input[type="number"],
#view-config input[type="password"] {
    height: 40px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
#view-config input:focus {
    border-color: #4ABE6E;
    box-shadow: 0 0 0 3px rgba(74, 190, 110, 0.12);
}
#view-config input[type="text"]:hover,
#view-config input[type="number"]:hover,
#view-config input[type="password"]:hover {
    border-color: #94a3b8;
}
.dark #view-config input[type="text"]:hover,
.dark #view-config input[type="number"]:hover,
.dark #view-config input[type="password"]:hover {
    border-color: #64748b;
}

/* Custom dropdown */
.cfg-dropdown {
    position: relative;
    outline: none;
}
.cfg-dropdown-selected {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 40px;
    padding: 0 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
    font-size: 0.875rem;
    color: #1e293b;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    user-select: none;
}
.dark .cfg-dropdown-selected {
    border-color: #475569;
    background: rgba(255, 255, 255, 0.05);
    color: #f1f5f9;
}
.cfg-dropdown-selected:hover { border-color: #94a3b8; }
.dark .cfg-dropdown-selected:hover { border-color: #64748b; }
.cfg-dropdown.open .cfg-dropdown-selected,
.cfg-dropdown:focus .cfg-dropdown-selected {
    border-color: #4ABE6E;
    box-shadow: 0 0 0 3px rgba(74, 190, 110, 0.12);
}
.cfg-dropdown-arrow {
    font-size: 0.625rem;
    color: #94a3b8;
    transition: transform 0.2s ease;
    flex-shrink: 0;
    margin-left: 0.5rem;
}
.cfg-dropdown.open .cfg-dropdown-arrow { transform: rotate(180deg); }
.cfg-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    z-index: 50;
    max-height: 240px;
    overflow-y: auto;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
    background: #ffffff;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 4px 10px -5px rgba(0, 0, 0, 0.04);
    padding: 4px;
}
.dark .cfg-dropdown-menu {
    border-color: #334155;
    background: #1e1e1e;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
}
.cfg-dropdown.open .cfg-dropdown-menu { display: block; }
.cfg-dropdown-item {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 0.875rem;
    color: #334155;
    cursor: pointer;
    transition: background 0.15s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dark .cfg-dropdown-item { color: #cbd5e1; }
.cfg-dropdown-item:hover { background: #f1f5f9; }
.dark .cfg-dropdown-item:hover { background: rgba(255, 255, 255, 0.08); }
.cfg-dropdown-item.active {
    background: rgba(74, 190, 110, 0.1);
    color: #228547;
    font-weight: 500;
}
.dark .cfg-dropdown-item.active {
    background: rgba(74, 190, 110, 0.15);
    color: #74E9A4;
}
/* When an item carries a hint (e.g. brand alias next to a technical model
   id), label/hint are split into two spans so the hint sits on the right in
   a dim, smaller weight. Without a hint the row stays a plain text node and
   uses the default ellipsis behaviour, so no layout regressions for old call
   sites. */
.cfg-dropdown-label {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cfg-dropdown-hint {
    flex-shrink: 0;
    margin-left: auto;
    padding-left: 12px;
    color: #94a3b8;
    font-size: 12px;
    font-weight: 400;
}
.dark .cfg-dropdown-hint {
    color: #64748b;
}
.cfg-dropdown-item.active .cfg-dropdown-hint {
    /* Tint the hint toward the brand colour on the active row so it doesn't
       fight with the highlighted label tone. */
    color: rgba(34, 133, 71, 0.65);
}
.dark .cfg-dropdown-item.active .cfg-dropdown-hint {
    color: rgba(116, 233, 164, 0.6);
}
/* The active row gets a trailing brand-green checkmark via a Font Awesome
   pseudo-element so every dropdown (chat / vision / image / asr / tts / etc.)
   surfaces "this is what's currently selected" without per-call JS plumbing.
   When a hint is present, the ✓ sits to its right with a small gap; without
   a hint, margin-left:auto pushes the ✓ flush against the right edge. */
.cfg-dropdown-item.active::after {
    content: '\f00c';                  /* FontAwesome check glyph */
    font-family: 'Font Awesome 6 Free', 'Font Awesome 5 Free', 'FontAwesome';
    font-weight: 900;
    margin-left: auto;
    padding-left: 12px;
    color: #4abe6e;
    font-size: 11px;
    flex-shrink: 0;
}
.cfg-dropdown-item.active:has(.cfg-dropdown-hint)::after {
    /* When hint occupies the auto-margin slot, the ✓ no longer benefits
       from `margin-left: auto`; replace it with a small fixed gap so the
       ✓ trails the hint cleanly. */
    margin-left: 0;
    padding-left: 10px;
}

/* API Key masking via CSS (avoids browser password prompts) */
.cfg-key-masked {
    -webkit-text-security: disc;
    text-security: disc;
}

/* Provider logo image — vendors flagged as `provider-logo-invert-dark`
   ship a black wordmark that disappears on the dark canvas; we invert their
   luminance only in dark mode so the brand stays recognizable without
   touching multi-color marks like Google/MiniMax. */
.provider-logo-img {
    object-fit: contain;
    object-position: center;
}
.dark .provider-logo-invert-dark {
    filter: invert(1) brightness(1.15);
}

/* Models page — provider dropdown rows.
   Configured rows look like ordinary picker entries; the .active row's
   trailing brand-green ✓ already announces "this is what's selected"
   (handled globally by .cfg-dropdown-item.active::after above).
   Unconfigured rows are visually subdued and carry a trailing gear icon
   as a "click to set up" affordance. */
.cap-provider-label {
    flex: 1 1 auto;
    overflow: hidden;
    text-overflow: ellipsis;
}
.cap-provider-gear {
    margin-left: auto;
    padding-left: 12px;
    color: #94a3b8;
    font-size: 11px;
    flex-shrink: 0;
}
.cap-provider-item.cap-provider-unconfigured {
    color: #94a3b8;
}
.dark .cap-provider-item.cap-provider-unconfigured {
    color: #64748b;
}
.cap-provider-item.cap-provider-unconfigured:hover {
    color: #475569;
}
.dark .cap-provider-item.cap-provider-unconfigured:hover {
    color: #cbd5e1;
}
.cap-provider-item.cap-provider-unconfigured:hover .cap-provider-gear {
    color: #475569;
}
.dark .cap-provider-item.cap-provider-unconfigured:hover .cap-provider-gear {
    color: #cbd5e1;
}
/* If the active row ever lands on an unconfigured vendor (defensive — the
   click handler normally diverts to the modal), suppress the global ✓ so
   the gear remains the sole trailing icon and the row keeps reading as
   "needs setup" rather than "already selected". */
.cap-provider-item.cap-provider-unconfigured.active::after {
    content: none;
}

/* "Add vendor" modal picker — each configured row carries a static
   brand-green ✓ via decorateVendorModalPicker so users can see what's set
   up at a glance. The active row's global ✓ is suppressed here to avoid
   showing two checks side by side on configured + selected rows. */
.vendor-picker-item.active::after {
    content: none;
}
.vendor-picker-configured-mark {
    margin-left: auto;
    padding-left: 12px;
    color: #4abe6e;
    font-size: 11px;
    flex-shrink: 0;
}
/* "Custom" row is an add-new action: trailing + instead of ✓. */
.vendor-picker-add-mark {
    margin-left: auto;
    padding-left: 12px;
    color: #94a3b8;
    font-size: 11px;
    flex-shrink: 0;
}

/* Chat Input */
#chat-input {
    resize: none; height: 42px; max-height: 180px;
    overflow-y: hidden;
    transition: border-color 0.2s ease;
}

/* Attachment Preview Bar */
.attachment-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 0;
}
.attachment-preview.hidden { display: none; }

.attach-menu {
    position: absolute;
    left: 72px;
    bottom: calc(100% + 6px);
    min-width: 148px;
    padding: 6px;
    border-radius: 12px;
    background: #fff;
    border: 1px solid #e2e8f0;
    box-shadow: 0 8px 30px -6px rgba(0, 0, 0, 0.1), 0 2px 8px -2px rgba(0, 0, 0, 0.04);
    z-index: 55;
    animation: slashMenuIn 0.15s ease-out;
}
.attach-menu.hidden { display: none; }
.attach-menu-item {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: #334155;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease;
    text-align: left;
}
.attach-menu-item:hover {
    background: #EDFDF3;
    color: #228547;
}
.attach-menu-item i {
    width: 14px;
    text-align: center;
    color: #64748b;
}
.attach-menu-item:hover i { color: inherit; }

.att-thumb {
    position: relative;
    width: 64px; height: 64px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e2e8f0;
    flex-shrink: 0;
}
.dark .att-thumb { border-color: rgba(255,255,255,0.1); }
.att-thumb img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.att-chip {
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 28px 6px 10px;
    border-radius: 8px;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    font-size: 12px;
    color: #475569;
    max-width: 180px;
}
.dark .att-chip { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.1); color: #94a3b8; }
.att-uploading { opacity: 0.6; pointer-events: none; }
.att-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.att-remove {
    position: absolute;
    top: -4px; right: -4px;
    width: 18px; height: 18px;
    border-radius: 50%;
    background: #ef4444;
    color: #fff;
    border: none;
    font-size: 12px;
    line-height: 18px;
    text-align: center;
    cursor: pointer;
    padding: 0;
    opacity: 0;
    transition: opacity 0.15s;
}
.att-thumb:hover .att-remove,
.att-chip:hover .att-remove { opacity: 1; }

/* Drag-over highlight */
.drag-over {
    background: rgba(74, 190, 110, 0.08) !important;
    border-color: #4ABE6E !important;
}

/* User message attachments */
.user-msg-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 6px;
}
.user-msg-image {
    max-width: 200px;
    max-height: 160px;
    border-radius: 8px;
    object-fit: cover;
    cursor: pointer;
}
.user-msg-image:hover { opacity: 0.9; }
.user-msg-file {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 6px;
    background: rgba(255,255,255,0.15);
    font-size: 12px;
}
.user-msg-file.is-openable {
    cursor: pointer;
    transition: background 0.15s ease;
}
.user-msg-file.is-openable:hover {
    background: rgba(255,255,255,0.28);
}

/* Placeholder Cards */
.placeholder-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.placeholder-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px -5px rgba(0, 0, 0, 0.1);
}

/* Slash Command Menu */
.slash-menu {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 0;
    right: 0;
    max-height: 320px;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 8px 30px -6px rgba(0, 0, 0, 0.1), 0 2px 8px -2px rgba(0, 0, 0, 0.04);
    z-index: 50;
    padding: 4px;
    animation: slashMenuIn 0.15s ease-out;
}
.slash-menu.hidden { display: none; }

@keyframes slashMenuIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.slash-menu-header {
    padding: 6px 10px 4px;
    font-size: 11px;
    font-weight: 600;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.slash-menu-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.12s ease;
}
.slash-menu-item:hover,
.slash-menu-item.active {
    background: #EDFDF3;
}
.slash-menu-item .cmd {
    font-size: 13px;
    font-weight: 500;
    color: #334155;
    font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
}
.slash-menu-item.active .cmd {
    color: #228547;
}
.slash-menu-item .desc {
    font-size: 12px;
    color: #94a3b8;
    margin-left: 12px;
    white-space: nowrap;
}

/* Dark mode */
.dark .slash-menu {
    background: #1A1A1A;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 30px -6px rgba(0, 0, 0, 0.35), 0 2px 8px -2px rgba(0, 0, 0, 0.15);
}
.dark .slash-menu-header {
    color: #64748b;
}
.dark .slash-menu-item:hover,
.dark .slash-menu-item.active {
    background: rgba(74, 190, 110, 0.1);
}
.dark .slash-menu-item .cmd {
    color: #e2e8f0;
}
.dark .slash-menu-item.active .cmd {
    color: #4ABE6E;
}
.dark .slash-menu-item .desc {
    color: #64748b;
}

.dark .attach-menu {
    background: #1A1A1A;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 30px -6px rgba(0, 0, 0, 0.35), 0 2px 8px -2px rgba(0, 0, 0, 0.15);
}
.dark .attach-menu-item {
    color: #e2e8f0;
}
.dark .attach-menu-item i {
    color: #94a3b8;
}
.dark .attach-menu-item:hover {
    background: rgba(74, 190, 110, 0.1);
    color: #4ABE6E;
}

/* ============================================================
   Knowledge View
   ============================================================ */

/* Tab toggle */
.knowledge-tab, .memory-tab {
    color: #64748b;
}
.knowledge-tab.active, .memory-tab.active {
    background: #fff;
    color: #334155;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.dark .knowledge-tab.active, .dark .memory-tab.active {
    background: rgba(255,255,255,0.1);
    color: #e2e8f0;
}

/* File tree */
.knowledge-tree-group {
    margin-bottom: 2px;
}
.knowledge-tree-group-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    width: 100%;
    padding: 6px 8px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    cursor: pointer;
    border: none;
    background: none;
    transition: background 0.15s, color 0.15s;
    text-transform: capitalize;
}
.knowledge-tree-group-btn:hover {
    background: rgba(0,0,0,0.04);
    color: #334155;
}
.dark .knowledge-tree-group-btn:hover {
    background: rgba(255,255,255,0.06);
    color: #e2e8f0;
}
.knowledge-tree-group-btn i.chevron {
    font-size: 8px;
    transition: transform 0.15s;
}
.knowledge-tree-group.open > .knowledge-tree-group-btn .chevron {
    transform: rotate(90deg);
}
.knowledge-tree-group-items {
    display: none;
}
.knowledge-tree-group.open > .knowledge-tree-group-items {
    display: block;
}

.knowledge-tree-file {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px 5px 24px;
    border-radius: 6px;
    font-size: 12px;
    color: #64748b;
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    transition: background 0.15s, color 0.15s;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.knowledge-tree-file:hover {
    background: rgba(0,0,0,0.04);
    color: #334155;
}
.knowledge-tree-file.active {
    background: #EDFDF3;
    color: #228547;
}

.knowledge-actions {
    display: flex;
    gap: 2px;
    margin-left: auto;
    opacity: 0;
    transition: opacity 0.15s;
}
.knowledge-tree-file:hover .knowledge-actions,
.knowledge-tree-group-btn:hover .knowledge-actions,
.knowledge-tree-file:focus-within .knowledge-actions,
.knowledge-tree-group-btn:focus-within .knowledge-actions {
    opacity: 1;
}
.knowledge-action {
    padding: 3px 5px;
    border-radius: 5px;
    color: #94a3b8;
    font-size: 9px;
}
.knowledge-action:hover {
    color: #228547;
    background: rgba(34, 133, 71, 0.08);
}
.knowledge-action.danger:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.08);
}
.dark .knowledge-tree-file:hover {
    background: rgba(255,255,255,0.06);
    color: #e2e8f0;
}
.dark .knowledge-tree-file.active {
    background: rgba(74, 190, 110, 0.1);
    color: #4ABE6E;
}
.knowledge-import-drag-over {
    outline: 2px dashed rgba(74, 190, 110, 0.55);
    outline-offset: 4px;
    border-radius: 14px;
}
#knowledge-dialog-card.knowledge-document-dialog {
    max-width: 760px;
}
#knowledge-document-content {
    min-height: 320px;
    line-height: 1.55;
}

/* Graph legend */
.knowledge-graph-legend {
    position: absolute;
    top: 12px;
    right: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 11px;
    color: #64748b;
    z-index: 10;
}
.knowledge-graph-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}
.knowledge-graph-legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* Graph tooltip */
.knowledge-graph-tooltip {
    position: absolute;
    padding: 6px 10px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 12px;
    color: #334155;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 20;
}
.dark .knowledge-graph-tooltip {
    background: #1A1A1A;
    border-color: rgba(255,255,255,0.1);
    color: #e2e8f0;
}

/* Graph node label — the halo keeps it readable where links and nodes crowd */
.knowledge-graph-label {
    fill: #475569;
    paint-order: stroke;
    stroke: rgba(255,255,255,0.9);
    stroke-width: 3px;
    stroke-linejoin: round;
}
.dark .knowledge-graph-label {
    fill: #cbd5e1;
    stroke: rgba(26,26,26,0.9);
}

/* Config field tooltip */
.cfg-tip {
    position: relative;
    display: inline-flex;
    align-items: center;
    color: #94a3b8;
    cursor: help;
    font-size: 12px;
}
.cfg-tip:hover { color: #64748b; }
.dark .cfg-tip:hover { color: #cbd5e1; }
/* Floating tooltip portal — appended to <body> by JS so it isn't clipped
   by overflow:hidden ancestors. */
.cfg-tip-floating {
    position: fixed;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 400;
    line-height: 1.4;
    white-space: nowrap;
    background: #1e293b;
    color: #e2e8f0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s;
    z-index: 9999;
}
.dark .cfg-tip-floating {
    background: #334155;
    color: #f1f5f9;
}
.cfg-tip-floating.show {
    opacity: 1;
}

/* Example cards: equal height via flex stretch + fixed 2-line description area */
.example-card {
    display: flex;
    flex-direction: column;
}
.example-card > p {
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.5em;  /* ~2 lines at text-sm leading-relaxed */
}

/* --------------------------------------------------------------------
 * Voice pill — compact custom audio player used by mic uploads and TTS
 * replies. Replaces the bulky native <audio controls> with a play/pause
 * icon + thin progress bar + duration counter so it blends into chat
 * bubbles without the chrome-grey browser default look.
 * ------------------------------------------------------------------ */
.voice-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(15, 23, 42, 0.05);
    color: rgb(71, 85, 105);
    font-size: 12px;
    line-height: 1;
    max-width: 240px;
    user-select: none;
    cursor: default;
}
.dark .voice-pill {
    background: rgba(255, 255, 255, 0.08);
    color: rgb(203, 213, 225);
}
.voice-pill[data-loading="1"] {
    opacity: 0.65;
}
.voice-pill-btn {
    width: 22px;
    height: 22px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-500, #2563eb);
    color: #fff;
    flex-shrink: 0;
    cursor: pointer;
    transition: transform 0.1s ease;
}
.voice-pill-btn:hover { transform: scale(1.05); }
.voice-pill-btn i { font-size: 9px; margin-left: 1px; }
.voice-pill-btn[data-state="play"] i { margin-left: 2px; }
.voice-pill-btn[data-state="pause"] i { margin-left: 0; }
.voice-pill-track {
    flex: 1;
    height: 3px;
    border-radius: 999px;
    background: rgba(100, 116, 139, 0.25);
    overflow: hidden;
    min-width: 70px;
}
.dark .voice-pill-track {
    background: rgba(148, 163, 184, 0.25);
}
.voice-pill-fill {
    height: 100%;
    width: 0%;
    background: var(--color-primary-500, #2563eb);
    border-radius: inherit;
    transition: width 0.1s linear;
}
.voice-pill-time {
    font-variant-numeric: tabular-nums;
    font-size: 11px;
    color: inherit;
    opacity: 0.75;
    flex-shrink: 0;
    min-width: 28px;
    text-align: right;
}
.voice-pill audio { display: none; }

/* Send button toggles into a Stop button while an SSE stream is in flight.
   Match the look of the disabled send button (light grey block + white
   glyph) so it reads as the same visual element, just paused/idle from
   sending perspective and clickable to stop. */
#send-btn.send-btn-cancel {
    background-color: rgb(203 213 225) !important; /* slate-300, == disabled send-btn */
    color: white !important;
}
#send-btn.send-btn-cancel:hover {
    background-color: rgb(148 163 184) !important; /* slate-400 */
}
#send-btn.send-btn-cancel:disabled {
    background-color: rgb(226 232 240) !important; /* slate-200, while stop is in flight */
    color: white !important;
    cursor: progress;
}
.dark #send-btn.send-btn-cancel {
    background-color: rgb(71 85 105) !important; /* slate-600, == dark disabled send-btn */
    color: white !important;
}
.dark #send-btn.send-btn-cancel:hover {
    background-color: rgb(100 116 139) !important; /* slate-500 */
}
.dark #send-btn.send-btn-cancel:disabled {
    background-color: rgb(51 65 85) !important; /* slate-700 */
    color: rgb(203 213 225) !important;
}

.agent-cancelled-tag {
    font-style: italic;
}

/* =====================================================================
   Code Block Enhancements
   ===================================================================== */
.code-block-wrapper {
    position: relative;
    margin: 1em 0;
    border-radius: 8px;
    overflow: hidden;
    background: #f8f9fa;
    border: 1px solid #e2e8f0;
}

.dark .code-block-wrapper {
    background: #1e293b;
    border-color: #334155;
}

.code-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5em 1em;
    background: #e2e8f0;
    border-bottom: 1px solid #cbd5e1;
    font-size: 0.85em;
}

.dark .code-block-header {
    background: #0f172a;
    border-bottom-color: #334155;
}

.code-block-lang {
    color: #64748b;
    font-weight: 500;
    text-transform: lowercase;
}

.dark .code-block-lang {
    color: #94a3b8;
}

.code-copy-btn {
    background: transparent;
    border: none;
    color: #64748b;
    cursor: pointer;
    padding: 0.25em 0.5em;
    border-radius: 4px;
    transition: all 0.2s;
    font-size: 0.9em;
}

.code-copy-btn:hover {
    background: rgba(100, 116, 139, 0.1);
    color: #475569;
}

.dark .code-copy-btn {
    color: #94a3b8;
}

.dark .code-copy-btn:hover {
    background: rgba(148, 163, 184, 0.1);
    color: #cbd5e1;
}

.code-block-wrapper pre {
    margin: 0;
    border-radius: 0;
    border: none;
}

/* =====================================================================
   Drag and Drop Overlay
   ===================================================================== */
/* Anchor the absolutely-positioned overlay to the chat view. */
#view-chat {
    position: relative;
}

.drag-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(59, 130, 246, 0.1);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.2s;
}

.drag-overlay.active {
    opacity: 1;
}

.drag-overlay.hidden {
    display: none;
}

.drag-overlay-content {
    background: white;
    border: 3px dashed #3b82f6;
    border-radius: 16px;
    padding: 3em 4em;
    text-align: center;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    animation: bounce 1s ease infinite;
}

.dark .drag-overlay-content {
    background: #1e293b;
    border-color: #60a5fa;
}

.drag-overlay-content i {
    font-size: 4em;
    color: #3b82f6;
    margin-bottom: 0.5em;
}

.dark .drag-overlay-content i {
    color: #60a5fa;
}

.drag-overlay-content p {
    font-size: 1.5em;
    font-weight: 600;
    color: #1e293b;
    margin: 0;
}

.dark .drag-overlay-content p {
    color: #f1f5f9;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* =====================================================================
   Message Action Buttons
   ===================================================================== */
.edit-msg-btn,
.delete-msg-btn,
.regenerate-msg-btn {
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}

.user-message-group:hover .edit-msg-btn,
.user-message-group:hover .delete-msg-btn,
.bot-message-group:hover .regenerate-msg-btn {
    opacity: 1;
}

.edit-msg-btn:hover,
.regenerate-msg-btn:hover {
    color: #3b82f6 !important;
}

.delete-msg-btn:hover {
    color: #ef4444 !important;
}

.edit-msg-btn:disabled,
.delete-msg-btn:disabled {
    cursor: not-allowed !important;
    opacity: 0.35 !important;
}

/* =====================================================================
   Workspace Panel (preview + file manager)
   ===================================================================== */
.workspace-panel {
    position: relative;
    flex-shrink: 0;
    width: 420px;
    min-width: 280px;
    max-width: 70vw;
    height: 100%;
    display: flex;
    background: #ffffff;
    border-left: 1px solid #e5e7eb;
}
.dark .workspace-panel {
    background: #1A1A1A;
    border-left-color: rgba(255, 255, 255, 0.08);
}
.workspace-panel.hidden { display: none; }

.workspace-inner {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.workspace-resizer {
    position: absolute;
    left: -3px;
    top: 0;
    bottom: 0;
    width: 6px;
    cursor: col-resize;
    z-index: 20;
}
.workspace-resizer:hover,
.workspace-resizer.dragging { background: rgba(74, 190, 110, 0.35); }

.workspace-header {
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 0 8px 0 10px;
    border-bottom: 1px solid #e5e7eb;
}
.dark .workspace-header { border-bottom-color: rgba(255, 255, 255, 0.08); }

.workspace-tabs { display: flex; gap: 2px; }
.workspace-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    color: #64748b;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}
.workspace-tab i { font-size: 12px; }
.workspace-tab:hover { background: #f1f5f9; color: #334155; }
.workspace-tab.active { background: #EDFDF3; color: #228547; }
.dark .workspace-tab { color: #94a3b8; }
.dark .workspace-tab:hover { background: rgba(255, 255, 255, 0.06); color: #e2e8f0; }
.dark .workspace-tab.active { background: rgba(74, 190, 110, 0.12); color: #4ABE6E; }

.workspace-header-actions { display: flex; align-items: center; gap: 2px; }
.workspace-icon-btn {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 13px;
    color: #94a3b8;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}
.workspace-icon-btn:hover { background: #f1f5f9; color: #334155; }
.workspace-icon-btn.hidden { display: none; }
.dark .workspace-icon-btn:hover { background: rgba(255, 255, 255, 0.08); color: #e2e8f0; }

.workspace-body {
    display: none;
    flex: 1;
    min-height: 0;
    flex-direction: column;
}
.workspace-body.active { display: flex; }

.workspace-file-title {
    flex-shrink: 0;
    padding: 8px 12px;
    font-size: 12px;
    color: #64748b;
    border-bottom: 1px solid #f1f5f9;
    word-break: break-all;
    font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, monospace;
}
.workspace-file-title.hidden { display: none; }
.dark .workspace-file-title { color: #94a3b8; border-bottom-color: rgba(255, 255, 255, 0.06); }

.workspace-preview-content {
    flex: 1;
    min-height: 0;
    overflow: auto;
    position: relative;
}
.workspace-preview-content iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    background: #fff;
}
.workspace-preview-content .ws-pad { padding: 16px; }
.workspace-preview-content img.ws-media,
.workspace-preview-content video.ws-media {
    max-width: 100%;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
}
.workspace-preview-content audio.ws-media { width: 100%; margin-top: 12px; }
.workspace-preview-content pre {
    margin: 0;
    padding: 16px;
    font-size: 12.5px;
    line-height: 1.6;
    white-space: pre;
    overflow: auto;
}

.workspace-empty {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 10px;
    color: #94a3b8;
    font-size: 13px;
    padding: 24px;
    text-align: center;
}
.workspace-empty i { font-size: 26px; opacity: 0.4; }

/* Files tab */
.workspace-files-toolbar {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
}
.workspace-search {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 10px;
    height: 32px;
    border-radius: 8px;
    background: #f1f5f9;
}
.workspace-search i { font-size: 11px; color: #94a3b8; }
.workspace-search input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: 0;
    outline: none;
    font-size: 13px;
    color: #334155;
}
.dark .workspace-search { background: rgba(255, 255, 255, 0.06); }
.dark .workspace-search input { color: #e2e8f0; }

.workspace-breadcrumb {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 2px;
    padding: 0 12px 8px;
    font-size: 12px;
    color: #94a3b8;
}
.workspace-breadcrumb .crumb { cursor: pointer; border-radius: 4px; padding: 1px 4px; }
.workspace-breadcrumb .crumb:hover { background: #f1f5f9; color: #334155; }
.dark .workspace-breadcrumb .crumb:hover { background: rgba(255, 255, 255, 0.08); color: #e2e8f0; }
.workspace-breadcrumb .sep { opacity: 0.5; }

.workspace-file-list {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 0 6px 12px;
}
.ws-file-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 8px;
    border-radius: 8px;
    cursor: pointer;
    user-select: none;
    transition: background 0.12s ease;
}
.ws-file-row:hover { background: #f1f5f9; }
.dark .ws-file-row:hover { background: rgba(255, 255, 255, 0.06); }
.ws-file-row.active { background: #EDFDF3; }
.dark .ws-file-row.active { background: rgba(74, 190, 110, 0.12); }
.ws-file-row > i {
    width: 16px;
    text-align: center;
    font-size: 13px;
    flex-shrink: 0;
}
.ws-file-name {
    flex: 1;
    min-width: 0;
    font-size: 13px;
    color: #334155;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dark .ws-file-name { color: #e2e8f0; }
.ws-file-meta {
    flex-shrink: 0;
    font-size: 11px;
    color: #94a3b8;
}
.ws-file-path {
    font-size: 11px;
    color: #94a3b8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* File icon colors by kind */
.ws-icon-directory { color: #f59e0b; }
.ws-icon-html { color: #f97316; }
.ws-icon-markdown { color: #6366f1; }
.ws-icon-image { color: #10b981; }
.ws-icon-video { color: #ec4899; }
.ws-icon-audio { color: #8b5cf6; }
.ws-icon-pdf { color: #ef4444; }
.ws-icon-csv { color: #14b8a6; }
.ws-icon-code { color: #3b82f6; }
.ws-icon-office { color: #2563eb; }
.ws-icon-text,
.ws-icon-file { color: #94a3b8; }

/* =====================================================================
   Artifact / File Cards in messages
   ===================================================================== */
.file-card-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 10px 0;
}
.file-card {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    max-width: 100%;
    padding: 9px 12px;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    background: #fff;
    cursor: pointer;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}
.file-card:hover {
    border-color: #4ABE6E;
    box-shadow: 0 2px 10px -2px rgba(74, 190, 110, 0.25);
}
.dark .file-card { background: #232323; border-color: rgba(255, 255, 255, 0.1); }
.dark .file-card:hover { border-color: #4ABE6E; }
.file-card > i.file-card-icon { font-size: 16px; flex-shrink: 0; }
.file-card-info { min-width: 0; flex: 1; }
.file-card-name {
    font-size: 13px;
    font-weight: 500;
    color: #334155;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dark .file-card-name { color: #e2e8f0; }
.file-card-sub {
    font-size: 11px;
    color: #94a3b8;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.file-card-actions { display: flex; gap: 2px; flex-shrink: 0; }
.file-card-btn {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 11px;
    color: #94a3b8;
    cursor: pointer;
    transition: background 0.12s ease, color 0.12s ease;
}
.file-card-btn:hover { background: #f1f5f9; color: #334155; }
.dark .file-card-btn:hover { background: rgba(255, 255, 255, 0.08); color: #e2e8f0; }

/* Inline path chip (fallback for paths mentioned only in text) */
.file-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 1px 7px;
    margin: 0 1px;
    border-radius: 6px;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    font-size: 0.88em;
    color: #334155;
    cursor: pointer;
    vertical-align: baseline;
    text-decoration: none;
}
.file-chip:hover { border-color: #4ABE6E; color: #228547; }
.file-chip i { font-size: 0.85em; opacity: 0.7; }
.dark .file-chip { background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.1); color: #e2e8f0; }
.dark .file-chip:hover { border-color: #4ABE6E; color: #4ABE6E; }

/* =====================================================================
   Mention (@) menu
   ===================================================================== */
.mention-menu {
    position: absolute;
    bottom: calc(100% + 6px);
    left: 0;
    right: 0;
    max-height: 300px;
    overflow-y: auto;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    box-shadow: 0 8px 30px -6px rgba(0, 0, 0, 0.1), 0 2px 8px -2px rgba(0, 0, 0, 0.04);
    z-index: 50;
    padding: 4px;
    animation: slashMenuIn 0.15s ease-out;
}
.mention-menu.hidden { display: none; }
.dark .mention-menu {
    background: #1A1A1A;
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 30px -6px rgba(0, 0, 0, 0.35), 0 2px 8px -2px rgba(0, 0, 0, 0.15);
}
.mention-item {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 7px 10px;
    border-radius: 8px;
    cursor: pointer;
}
.mention-item:hover,
.mention-item.active { background: #EDFDF3; }
.dark .mention-item:hover,
.dark .mention-item.active { background: rgba(74, 190, 110, 0.1); }
.mention-item > i { width: 15px; text-align: center; font-size: 12px; flex-shrink: 0; }
.mention-item .m-name {
    font-size: 13px;
    color: #334155;
    flex-shrink: 0;
    max-width: 45%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.dark .mention-item .m-name { color: #e2e8f0; }
.mention-item .m-path {
    font-size: 11px;
    color: #94a3b8;
    flex: 1;
    min-width: 0;
    text-align: right;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    direction: rtl;
}
.mention-empty { padding: 10px; font-size: 12px; color: #94a3b8; text-align: center; }

/* Drop target highlight when dragging a workspace file into the chat */
.chat-main.ws-drop-active::after {
    content: '';
    position: absolute;
    inset: 8px;
    border: 2px dashed #4ABE6E;
    border-radius: 14px;
    background: rgba(74, 190, 110, 0.06);
    pointer-events: none;
    z-index: 30;
}

/* Mobile: workspace panel takes over the chat view */
@media (max-width: 768px) {
    .workspace-panel {
        position: absolute;
        inset: 0;
        width: 100% !important;
        max-width: none;
        z-index: 46;
    }
    .workspace-resizer { display: none; }
}
