/* ── AI Chat Pane ── */
.ai-chat-pane {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

/* ── Header ── */
.ai-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    background: var(--ai-header-bg);
    border-bottom: 1px solid var(--border-color);
    height: 48px;
    min-height: 48px;
    box-sizing: border-box;
}

.ai-chat-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-chat-logo {
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-chat-header-right {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ai-chat-header-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    font-size: var(--font-size-base);
    transition: all 0.2s;
}

.ai-chat-header-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.ai-chat-header-btn--danger {
    color: var(--color-danger);
}

.ai-chat-header-btn--danger:hover {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
}

.ai-chat-autoexec-toggle.active {
    color: var(--success-color);
}

.ai-chat-autoexec-toggle.active:hover {
    background-color: color-mix(in srgb, var(--success-color) 15%, transparent);
    color: var(--success-color);
}

.ai-chat-header-item {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-right: 8px;
}

.ai-chat-header-item-icon {
    width: 17px;
    height: 17px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.ai-chat-header-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background-color 0.1s, color 0.1s;
}

.ai-chat-header-icon-btn:hover:not(:disabled) {
    background: var(--btn-secondary-hover-bg);
    color: var(--text-primary);
}

.ai-chat-model-select {
    background-color: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 2px 6px;
    font-size: calc(var(--font-size-base) - 1px);
    height: 26px;
    outline: none;
    cursor: pointer;
    transition: border-color 0.2s;
    line-height: normal;
    display: flex;
    align-items: center;
}

.ai-chat-model-select:hover {
    border-color: var(--accent-color);
}

.ai-chat-model-select:focus {
    border-color: var(--accent-color);
}

.ai-chat-model-select option {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

/* ── Auth Container ── */
.ai-chat-auth-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    overflow-y: auto;
}

.ai-chat-auth-card {
    width: 100%;
    max-width: 320px;
    text-align: center;
}

.ai-chat-auth-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.ai-chat-auth-card h2 {
    color: var(--text-primary);
    font-size: calc(var(--font-size-base) + 6px);
    margin: 0 0 8px;
}

.ai-chat-auth-desc {
    color: var(--text-secondary);
    font-size: calc(var(--font-size-base) - 1px);
    margin: 0 0 24px;
    line-height: 1.5;
}

.ai-chat-auth-form {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-align: left;
}

.ai-chat-auth-form label {
    color: var(--text-secondary);
    font-size: calc(var(--font-size-base) - 2px);
    font-weight: 500;
}

.ai-chat-input {
    width: 100%;
    padding: 5px 8px;
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: calc(var(--font-size-base) - 1px);
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

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

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

.ai-chat-login-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px;
    margin-top: 8px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    border: none;
    border-radius: 6px;
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.ai-chat-login-btn:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--accent-hover), var(--accent-color));
    box-shadow: 0 2px 8px var(--modal-shadow, rgba(0, 0, 0, 0.2));
}

.ai-chat-login-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.ai-chat-auth-error {
    margin-top: 8px;
    padding: 8px 12px;
    background-color: var(--color-danger-bg);
    border: 1px solid var(--color-danger-border);
    border-radius: 6px;
    color: var(--color-danger);
    font-size: calc(var(--font-size-base) - 2px);
    text-align: center;
}

.ai-chat-spinner {
    display: inline-block;
    animation: spin 1s linear infinite;
    font-size: calc(var(--font-size-base) + 4px);
}

/* ── Chat Body ── */
.ai-chat-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ── Messages ── */
.ai-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* ── Message ── */
.ai-chat-message {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    animation: fadeInMessage 0.3s ease-in;
}

@keyframes fadeInMessage {
    from {
        opacity: 0;
        transform: translateY(4px);
    }

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

.ai-chat-message-avatar {
    width: 1.5em;
    height: 1.3em;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0;
    border-radius: 4px;
}

.ai-chat-message-user .ai-chat-message-avatar {
    background-color: var(--chat-msg-user-bg);
    color: var(--chat-msg-user-text);
}

.ai-chat-message-model .ai-chat-message-avatar {
    background: var(--bg-secondary);
    color: var(--accent-color);
    border: 1px solid var(--border-color);
}

.ai-chat-message-content {
    flex: 1;
    min-width: 0;
}

.ai-chat-message-content pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: var(--font-family, 'Consolas', 'Courier New', monospace);
    font-size: var(--ai-chat-content-font-size, 1.1em);
    line-height: 1.3;
    color: var(--chat-msg-model-text);
}

.ai-chat-message-user .ai-chat-message-content pre {
    color: var(--chat-msg-user-text);
}

.ai-chat-message-content.streaming pre {
    display: inline;
}

/* ── Input Area ── */
.ai-chat-resize-handle {
    height: 6px;
    cursor: ns-resize;
    background-color: transparent;
    position: relative;
    flex-shrink: 0;
}

.ai-chat-resize-handle::after {
    content: '';
    position: absolute;
    left: 25%;
    right: 25%;
    top: 50%;
    height: 2px;
    background-color: var(--border-color);
    border-radius: 1px;
    transition: background-color 0.2s;
}

.ai-chat-resize-handle:hover::after {
    background-color: var(--accent-color);
}

.ai-chat-input-area {
    display: flex;
    gap: 8px;
    padding: 12px;
    background-color: var(--sidebar-bg);
    border-top: 1px solid var(--border-color);
    align-items: flex-end;
    flex-shrink: 0;
}

.ai-token-status {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 12px;
    background-color: var(--sidebar-bg);
    font-size: var(--ai-token-font-size, 0.78em);
    color: var(--text-secondary);
    opacity: 0.7;
    flex-shrink: 0;
}

.ai-token-status-sep {
    opacity: 0.4;
}

.ai-chat-textarea {
    flex: 1;
    background-color: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.4em 0.8em;
    font-size: 1em;
    font-family: inherit;
    resize: none;
    outline: none;
    line-height: 1.4;
    transition: border-color 0.2s;
    min-height: auto;
}

.ai-chat-textarea:focus {
    border-color: var(--accent-color);
}

.ai-chat-textarea::placeholder {
    color: var(--placeholder-color);
}

.ai-chat-textarea:disabled {
    opacity: 0.5;
}

.ai-chat-send-btn,
.ai-chat-cancel-btn {
    padding: 0.4em 1em;
    background-color: var(--accent-color);
    color: var(--text-on-accent);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1em;
    font-family: inherit;
    line-height: 1.4;
    transition: opacity 0.2s, background-color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    height: auto;
    min-width: 2.2em;
}

.ai-chat-cancel-btn {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
}

.ai-chat-cancel-btn:hover {
    background-color: var(--color-danger-bg-hover);
}

.ai-chat-prompt-btn {
    width: 2.2em;
    height: 2.2em;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--ai-chat-content-font-size, 1.1em);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.ai-chat-prompt-btn:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.ai-chat-send-btn {
    width: 2.2em;
    min-height: 2.2em;
    align-self: stretch;
    border: none;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-hover));
    color: var(--text-on-accent);
    font-size: var(--ai-chat-content-font-size, 1.1em);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    flex-shrink: 0;
}

.ai-chat-send-btn:hover:not(:disabled) {
    box-shadow: 0 2px 8px var(--modal-shadow, rgba(0, 0, 0, 0.2));
}

.ai-chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ── Markdown Rendering ── */
.ai-chat-markdown {
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.ai-chat-markdown h1,
.ai-chat-markdown h2,
.ai-chat-markdown h3,
.ai-chat-markdown h4 {
    margin: 4px 0 2px;
    color: var(--text-primary);
    font-weight: 600;
}

.ai-chat-markdown h1 {
    font-size: var(--ai-markdown-h1-font-size, 1.3em);
}

.ai-chat-markdown h2 {
    font-size: var(--ai-markdown-h2-font-size, 1.15em);
}

.ai-chat-markdown h3 {
    font-size: var(--ai-markdown-h3-font-size, 1.05em);
}

.ai-chat-markdown p {
    margin: 2px 0;
}

.ai-chat-markdown strong {
    color: var(--text-primary);
    font-weight: 700;
}

.ai-chat-markdown em {
    font-style: italic;
    color: var(--text-secondary);
}

.ai-chat-markdown code {
    background-color: var(--bg-tertiary);
    color: var(--accent-color);
    padding: 1px 5px;
    border-radius: 4px;
    font-family: var(--font-family);
    font-size: 1em;
}

.ai-chat-markdown pre {
    background-color: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 10px;
    overflow-x: auto;
    margin: 4px 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.ai-chat-markdown pre code {
    background: none;
    padding: 0;
    color: var(--code-text);
    font-size: 1em;
}

/* ── Execute Block (Run in Terminal) ── */
.ai-execute-block {
    margin: 8px 0;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--code-bg);
    overflow: hidden;
}

.ai-execute-block pre {
    margin: 0 !important;
    padding: 10px 12px !important;
    background: none !important;
    border: none !important;
    border-bottom: 1px solid var(--border-color) !important;
    border-radius: 0 !important;
}

.ai-execute-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 10px;
    background-color: color-mix(in srgb, var(--text-primary) 15%, transparent);
}

.ai-run-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 0 12px;
    background-color: var(--accent-color);
    color: var(--text-on-accent);
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: calc(var(--font-size-base) - 2px);
    font-weight: 600;
    transition: all 0.2s;
    height: 26px;
    line-height: 1;
}

.ai-run-btn:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 2px 4px var(--modal-shadow, rgba(0, 0, 0, 0.2));
}

.ai-run-btn svg {
    display: block;
    width: 14px;
    height: 14px;
}

.ai-run-target {
    font-size: calc(var(--font-size-base) - 3px);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ai-run-target.no-target {
    color: var(--color-danger);
    font-style: italic;
}

/* ── Auto-Execute Styles ── */
.ai-execute-block.ai-execute-auto {
    border-color: var(--success-color);
}

.ai-execute-auto-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 10px;
    height: 26px;
    background-color: var(--success-color);
    color: var(--text-on-accent);
    border-radius: 4px;
    font-size: calc(var(--font-size-base) - 2px);
    font-weight: 600;
    line-height: 1;
    white-space: nowrap;
}

.ai-execute-auto-badge svg {
    display: block;
    width: 14px;
    height: 14px;
}

.ai-execute-unsafe-note {
    padding: 4px 12px 6px;
    font-size: calc(var(--font-size-base) - 3px);
    color: var(--text-tertiary);
    font-style: italic;
}

.ai-execute-paused-banner {
    padding: 4px 12px 6px;
    font-size: calc(var(--font-size-base) - 2px);
    color: var(--color-warning);
    font-weight: 500;
}

.ai-chat-markdown ul,
.ai-chat-markdown ol {
    margin: 2px 0;
    padding-left: 20px;
}

.ai-chat-markdown li {
    margin: 1px 0;
}

.ai-chat-markdown blockquote {
    border-left: 3px solid var(--accent-color);
    margin: 4px 0;
    padding: 4px 12px;
    color: var(--text-secondary);
    background-color: color-mix(in srgb, var(--text-primary) 10%, transparent);
    border-radius: 0 4px 4px 0;
}

.ai-chat-markdown table {
    border-collapse: collapse;
    margin: 4px 0;
    width: 100%;
    font-size: var(--ai-markdown-table-font-size, 0.9em);
}

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

.ai-chat-markdown th {
    background-color: var(--bg-tertiary);
    color: var(--accent-color);
    font-weight: 600;
}

.ai-chat-markdown a {
    color: var(--accent-color);
    text-decoration: none;
}

.ai-chat-markdown a:hover {
    text-decoration: underline;
}

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

.ai-chat-markdown>*:first-child {
    margin-top: 0;
}

.ai-chat-markdown>*:last-child {
    margin-bottom: 0;
}