/* ── Chat Panel ─────────────────────────────────────────────────── */

.chat-panel {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    font-family: var(--font-sans);
    background-color: #fdfaf3;
}

/* Clear button (placed in tab bar) */
.chat-clear-btn {
    border: none;
    background: transparent;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    margin-right: 4px;
    opacity: 0.6;
    transition: opacity 0.15s;
}

.chat-clear-btn:hover {
    opacity: 1;
}

/* Token usage bar (below input) */
.chat-bottom-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-shrink: 0;
    min-height: 16px;
    background-color: #ffe6bd;
    border-top: 0.5px solid #dedede;
}

.chat-title-bar-content {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
    min-width: 0;
}

.chat-model-select {
    background: transparent;
    padding: 1px 4px;
    font-size: 11px;
    border: 0.5px solid #c8c8c8;
    border-radius: 3px;
    color: #555;
    font-family: var(--font-sans);
    cursor: pointer;
    max-width: 200px;
    outline: none;
    appearance: auto;
    -webkit-appearance: auto;
}

.chat-think-label {
    display: flex;
    align-items: center;
    gap: 3px;
    font-size: 11px;
    color: #333;
    font-family: var(--font-sans);
    cursor: pointer;
    white-space: nowrap;
    user-select: none;
}

.chat-think-checkbox {
    width: 11px;
    height: 11px;
    margin: 0;
    cursor: pointer;
    accent-color: #ffcc00;
}

.chat-token-counter {
    font-size: 9px;
    color: #333333 !important;
    font-family: 'Roboto';
    text-align: center;
    flex-shrink: 0;
    min-height: 12px;
    letter-spacing: 0.5px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 10px;
    margin-right: 5px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-height: 0;
}

/* Scrollbar */
.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
    margin: 4px 0;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.chat-messages:hover::-webkit-scrollbar-thumb {
    background: #6096e5ad;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #4a7bd0cc;
}

/* Message bubbles */
.chat-message {
    padding: 8px 12px;
    border-radius: 10px;
    font-size: 13px;
    line-height: 1.5;
    max-width: 90%;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.chat-message-user {
    align-self: flex-end;
    background-color: #ebfbff;
    white-space: normal;
    color: #1d1d1d;
    border-bottom-right-radius: 3px;
    box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 1px 3px 1px;
    border: 0.5px solid #aeaeae;
}

.chat-message-assistant {
    align-self: flex-start;
    background-color: #f2fff1cf;
    color: #1d1d1d;
    border: 0.5px solid #aeaeae;
    border-bottom-left-radius: 3px;
    box-shadow: rgba(60, 64, 67, 0.3) 0px 1px 2px 0px, rgba(60, 64, 67, 0.15) 0px 1px 3px 1px;
    white-space: normal;
}

/* Action badge on user messages */
.chat-action-badge {
    display: inline-block;
    background-color: #e3f2fd;
    color: #1565c0;
    border: 1px solid #90caf9;
    border-radius: 10px;
    padding: 1px 10px;
    font-size: 11px;
    font-weight: 600;
    margin-bottom: 6px;
    letter-spacing: 0.3px;
}

/* Code blocks inside user messages */
.chat-message-user pre {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 10px;
    margin: 6px 0;
    overflow-x: auto;
}

.chat-message-user pre code {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.5;
}

.chat-message-user p {
    margin: 0 0 6px 0;
}

.chat-message-user p:last-child {
    margin-bottom: 0;
}

.chat-message-user table {
    border-collapse: collapse;
    margin: 6px 0;
    font-size: 12px;
    width: 100%;
    background-color: #ffffff;
}

.chat-message-user th,
.chat-message-user td {
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    text-align: left;
}

.chat-message-user th {
    background-color: #e0f0ff;
    font-weight: 600;
}

/* Markdown inside assistant messages */
.chat-message-assistant p {
    margin: 0 0 8px 0;
}

.chat-message-assistant p:last-child {
    margin-bottom: 0;
}

.chat-message-assistant h1,
.chat-message-assistant h2,
.chat-message-assistant h3,
.chat-message-assistant h4 {
    margin: 10px 0 6px 0;
    font-weight: 600;
    line-height: 1.3;
}

.chat-message-assistant h1 { font-size: 16px; }
.chat-message-assistant h2 { font-size: 15px; }
.chat-message-assistant h3 { font-size: 14px; }
.chat-message-assistant h4 { font-size: 13px; }

.chat-message-assistant ul,
.chat-message-assistant ol {
    margin: 4px 0 8px 0;
    padding-left: 20px;
}

.chat-message-assistant li {
    margin-bottom: 2px;
}

.chat-message-assistant code {
    background-color: rgba(0, 0, 0, 0.06);
    padding: 1px 4px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 12px;
}

.chat-message-assistant pre {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 12px;
    margin: 6px 0;
    overflow-x: auto;
}

.chat-message-assistant pre code {
    background-color: transparent;
    padding: 0;
    color: #24292e;
    font-size: 12px;
    line-height: 1.5;
}

/* Copy button on code blocks */
.chat-copy-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    padding: 2px 8px;
    font-size: 10px;
    font-family: var(--font-sans);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: #f6f8fa;
    color: #555;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s;
}

.chat-message-assistant pre:hover .chat-copy-btn {
    opacity: 1;
}

.chat-copy-btn:hover {
    background: #e1e4e8;
    color: #24292e;
}

.chat-copy-btn.copied {
    animation: copy-fade 1.5s ease-out forwards;
}

@keyframes copy-fade {
    0%, 80% { opacity: 1; }
    100% { opacity: 1; }
}

/* GitHub highlight theme scoped to chat */
.chat-message-assistant .hljs { color: #24292e; background: #fff; }
.chat-message-assistant .hljs-doctag,
.chat-message-assistant .hljs-keyword,
.chat-message-assistant .hljs-meta .hljs-keyword,
.chat-message-assistant .hljs-template-tag,
.chat-message-assistant .hljs-template-variable,
.chat-message-assistant .hljs-type,
.chat-message-assistant .hljs-variable.language_ { color: #d73a49; }
.chat-message-assistant .hljs-title,
.chat-message-assistant .hljs-title.class_,
.chat-message-assistant .hljs-title.class_.inherited__,
.chat-message-assistant .hljs-title.function_ { color: #6f42c1; }
.chat-message-assistant .hljs-attr,
.chat-message-assistant .hljs-attribute,
.chat-message-assistant .hljs-literal,
.chat-message-assistant .hljs-meta,
.chat-message-assistant .hljs-number,
.chat-message-assistant .hljs-operator,
.chat-message-assistant .hljs-selector-attr,
.chat-message-assistant .hljs-selector-class,
.chat-message-assistant .hljs-selector-id,
.chat-message-assistant .hljs-variable { color: #005cc5; }
.chat-message-assistant .hljs-meta .hljs-string,
.chat-message-assistant .hljs-regexp,
.chat-message-assistant .hljs-string { color: #032f62; }
.chat-message-assistant .hljs-built_in,
.chat-message-assistant .hljs-symbol { color: #e36209; }
.chat-message-assistant .hljs-code,
.chat-message-assistant .hljs-comment,
.chat-message-assistant .hljs-formula { color: #6a737d; }
.chat-message-assistant .hljs-name,
.chat-message-assistant .hljs-quote,
.chat-message-assistant .hljs-selector-pseudo,
.chat-message-assistant .hljs-selector-tag { color: #22863a; }
.chat-message-assistant .hljs-subst { color: #24292e; }
.chat-message-assistant .hljs-section { color: #005cc5; font-weight: 700; }
.chat-message-assistant .hljs-bullet { color: #735c0f; }
.chat-message-assistant .hljs-emphasis { color: #24292e; font-style: italic; }
.chat-message-assistant .hljs-strong { color: #24292e; font-weight: 700; }
.chat-message-assistant .hljs-addition { color: #22863a; background-color: #f0fff4; }
.chat-message-assistant .hljs-deletion { color: #b31d28; background-color: #ffeef0; }

.chat-message-assistant blockquote {
    margin: 6px 0;
    padding: 4px 10px;
    border-left: 3px solid var(--accent-blue);
    background-color: rgba(0, 0, 0, 0.03);
    color: #555;
}

.chat-message-assistant table {
    border-collapse: collapse;
    margin: 6px 0;
    font-size: 12px;
    width: 100%;
    background-color: #ffffff;
}

.chat-message-assistant thead {
    background-color: #ffeacd;
}

.chat-message-assistant th,
.chat-message-assistant td {
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    text-align: left;
}

.chat-message-assistant th {
    background-color: rgba(0, 0, 0, 0.04);
    font-weight: 600;
}

.chat-message-assistant strong {
    font-weight: 600;
}

.chat-message-assistant a {
    color: var(--accent-blue);
    text-decoration: none;
}

.chat-message-assistant a:hover {
    text-decoration: underline;
}

.chat-message-assistant hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 8px 0;
}

/* Error messages */
.chat-message-assistant .chat-error {
    color: #b71c1c;
    background-color: #fce4ec;
    border: 1px solid #ef9a9a;
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 12px;
}

/* Thinking / reasoning collapsible */
.chat-thinking {
    margin-bottom: 6px;
    font-size: 12px;
}

.chat-thinking summary {
    cursor: pointer;
    color: #1d1d1d;
    font-style: italic;
    user-select: none;
    margin-bottom: 2px;
}

.chat-thinking summary:hover {
    color: #555;
}

.chat-thinking-body {
    margin-top: 2px;
    padding: 4px 8px;
    background-color: rgb(253 253 253);
    border-left: 3px solid #4fa36bab;
    color: #000000;
    font-size: 11px;
    line-height: 1.4;
    white-space: pre-wrap;
    max-height: 200px;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.chat-thinking-body::-webkit-scrollbar {
    width: 8px;
}

.chat-thinking-body::-webkit-scrollbar-track {
    background: transparent;
    margin: 4px 0;
}

.chat-thinking-body::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.chat-thinking-body:hover::-webkit-scrollbar-thumb {
    background: #6096e5ad;
}

.chat-thinking-body::-webkit-scrollbar-thumb:hover,
.chat-thinking-body::-webkit-scrollbar-thumb:active {
    background: #4a7bd0cc;
}

/* Tool call bar + badges */
.chat-tool-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 4px;
}

.chat-tool-bar:empty {
    display: none;
}

/* Tool badge - blue family, matches Explorer Tools accent (#1976d2) */
.chat-tool-badge {
    display: inline-block;
    background-color: #e3f2fd;
    color: #1565c0;
    border: 1px solid #90caf9;
    border-radius: 10px;
    padding: 1px 8px;
    font-size: 10px;
    font-weight: 600;
    margin: 4px 2px;
    cursor: help;
    vertical-align: middle;
}

.chat-tool-badge:hover {
    background-color: #bbdefb;
}

.chat-tool-badge i {
    margin-right: 4px;
    font-size: 9px;
}

/* Skill badge - green family, matches Explorer Skills accent (#43a047) */
.chat-skill-badge {
    display: inline-block;
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #a5d6a7;
    border-radius: 10px;
    padding: 1px 8px;
    font-size: 10px;
    font-weight: 600;
    margin: 4px 2px;
    cursor: help;
}

.chat-skill-badge:hover {
    background-color: #c8e6c9;
}

.chat-skill-badge i {
    margin-right: 4px;
    font-size: 9px;
}

/* Thinking indicator (reuses typing indicator with label) */
.chat-typing-indicator[data-label]::after {
    content: attr(data-label);
    font-size: 11px;
    color: #333333;
    font-style: italic;
    margin-left: 4px;
}

/* Typing indicator */
.chat-typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 12px;
    align-self: flex-start;
}

.chat-typing-indicator span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: #bbb;
    animation: chat-typing-bounce 1.4s infinite ease-in-out;
}

.chat-typing-indicator span:nth-child(1) { animation-delay: 0s; background-color: #e53935; }
.chat-typing-indicator span:nth-child(2) { animation-delay: 0.2s; background-color: #43a047; }
.chat-typing-indicator span:nth-child(3) { animation-delay: 0.4s; background-color: #1e88e5; }

@keyframes chat-typing-bounce {
    0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
    40% { transform: translateY(-5px); opacity: 1; }
}

/* Input area */
.chat-input-area {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    padding: 8px;
    background-color: #fff8e9;
    border-top: 0.5px solid #dedede;
    flex-shrink: 0;
}

.chat-input {
    flex: 1;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 6px 10px;
    font-size: 13px;
    font-family: var(--font-sans);
    resize: none;
    overflow-y: auto;
    max-height: 120px;
    line-height: 1.4;
    outline: none;
    background-color: #ffffff;
    color: var(--text-primary);
}

.chat-input:focus {
    border-color: var(--accent-blue);
}

.chat-input::placeholder {
    color: var(--text-muted);
}

/* Action buttons */
.chat-stt-btn,
.chat-send-btn,
.chat-tts-btn {
    width: 30px;
    height: 30px;
    padding: 0;
    border: none;
    border-radius: var(--radius);
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.15s;
}

.chat-stt-btn:hover,
.chat-send-btn:hover,
.chat-tts-btn:hover {
    background: #c8e6c0;
}

.chat-stt-btn.active {
    background-color: rgba(211, 47, 47, 0.18);
}

.chat-stt-btn.active svg {
    stroke: #d32f2f;
}

.chat-stt-btn.active svg rect {
    fill: #ef5350;
}

.chat-tts-btn.active {
    background-color: rgba(33, 150, 243, 0.15);
}

.chat-tts-btn.active svg {
    stroke: #1565c0;
}

.chat-tts-btn.active svg polygon {
    fill: #64b5f6;
}