/* ============================================================
   Chat Tab Styles
   ============================================================ */

.chat-view {
    height: calc(100vh - 90px);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ---- Layout ---- */

.chat-layout {
    display: flex;
    height: 100%;
    overflow: hidden;
}

/* ---- Sidebar ---- */

.chat-sidebar {
    width: 220px;
    min-width: 220px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.chat-sidebar-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.chat-new-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 22px;
    height: 22px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.chat-new-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.conversation-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.chat-sidebar-footer {
    border-top: 1px solid var(--border-color);
    padding: 0.5rem;
    flex-shrink: 0;
    display: flex;
    gap: 0.25rem;
}

.chat-delete-all-btn {
    flex: 1;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.3rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.7rem;
    transition: var(--transition);
}

.chat-delete-all-btn:hover {
    border-color: var(--error);
    color: var(--error);
}

.conv-empty {
    padding: 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-align: center;
}

.conv-item {
    padding: 0.5rem 1rem;
    cursor: pointer;
    border-radius: 0;
    transition: background 0.1s;
    border-left: 2px solid transparent;
}

.conv-item:hover {
    background: var(--bg-hover);
}

.conv-item.active {
    background: var(--bg-hover);
    border-left-color: var(--accent-primary);
}

.conv-item-title {
    font-size: 0.8rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.conv-item-date {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* ---- Main chat area ---- */

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
    position: relative;
}

/* ---- Empty state ---- */

.chat-empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    color: var(--text-muted);
    padding: 2rem;
    text-align: center;
}

.chat-empty-icon {
    color: var(--text-muted);
    opacity: 0.5;
}

.chat-empty-state p {
    font-size: 0.875rem;
    max-width: 320px;
    line-height: 1.5;
}

/* ---- Active area ---- */

.chat-active-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.4rem 1rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.chat-conv-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.chat-time-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-family: var(--font-main);
    cursor: pointer;
    outline: none;
    transition: var(--transition);
}

.chat-time-select:hover,
.chat-time-select:focus {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.chat-header-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.chat-action-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.75rem;
    transition: var(--transition);
}

.chat-action-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.chat-action-danger:hover {
    border-color: var(--error);
    color: var(--error);
}

/* ---- Messages area ---- */

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0;
    min-height: 0;
}

/* ---- Message separator (dot + extending line via pseudo-element) ---- */

.chat-separator {
    position: relative;
    width: 16px;
    height: 6px;
    margin-left: 6px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Line extends well beyond the separator into adjacent message areas */
.chat-separator::before {
    content: '';
    position: absolute;
    left: 50%;
    top: -14px;
    bottom: -14px;
    width: 1px;
    background: var(--accent-primary);
    opacity: 0.15;
    transform: translateX(-50%);
    pointer-events: none;
}

.chat-sep-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent-primary);
    opacity: 0.4;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
}

/* Old line elements hidden - replaced by ::before */
.chat-sep-line {
    display: none;
}

/* ---- Individual messages ---- */

.chat-message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
}

.chat-message-user {
    align-self: flex-end;
}

.chat-message-user .chat-msg-content {
    background: var(--accent-primary);
    color: white;
    border-radius: 10px 10px 2px 10px;
    padding: 0.4rem 0.7rem;
    font-size: 0.8rem;
    line-height: 1.4;
    white-space: pre-wrap;
    word-break: break-word;
}

.chat-message-assistant {
    align-self: flex-start;
}

.chat-msg-label {
    font-size: 0.65rem;
    color: var(--accent-secondary);
    font-weight: 600;
    margin-bottom: 0.15rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    opacity: 0.7;
}

.chat-message-assistant .chat-msg-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 2px 10px 10px 10px;
    padding: 0.4rem 0.7rem;
    font-size: 0.8rem;
    line-height: 1.45;
    color: var(--text-primary);
    font-family: var(--font-main);
    min-width: 80px;
    word-break: break-word;
    overflow: hidden;
}

.chat-msg-text {
    white-space: pre-wrap;
}

.chat-streaming-text {
    white-space: pre-wrap;
}

/* ---- Loading animation (in-bubble, removed when content arrives) ---- */

.chat-loading-text {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.8rem;
    animation: chat-pulse 1.5s ease-in-out infinite;
}

@keyframes chat-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ---- Status indicator (bottom-left, Claude Code style) ---- */

.chat-status-indicator {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.75rem;
    flex-shrink: 0;
}

.chat-status-sparkle {
    color: var(--accent-primary);
    animation: sparkle-pulse 2s ease-in-out infinite;
    flex-shrink: 0;
}

@keyframes sparkle-pulse {
    0%, 100% { opacity: 0.3; transform: scale(0.85); }
    50% { opacity: 1; transform: scale(1); }
}

.chat-status-text {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-style: italic;
    animation: status-fade 1.8s ease-in-out infinite;
}

@keyframes status-fade {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.9; }
}

/* ---- Inline code ---- */

.chat-inline-code {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 3px;
    padding: 0.1em 0.35em;
    font-family: var(--font-mono);
    font-size: 0.8em;
    color: var(--accent-secondary);
}

/* ---- Tool call blocks ---- */

.chat-tool-call {
    margin: 0 -0.7rem -0.4rem -0.7rem;
    border-left: 2px solid var(--accent-primary);
    border-radius: 0;
    overflow: hidden;
    background: var(--bg-primary);
}

.chat-tool-call:last-child {
    margin-bottom: -0.5rem;
    border-radius: 0 0 10px 0;
}

.chat-tool-header {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.15rem 0.4rem;
    background: rgba(156, 106, 222, 0.06);
    font-size: 0.68rem;
    cursor: pointer;
    user-select: none;
    min-width: 0;
}

.chat-tool-header:hover {
    background: rgba(156, 106, 222, 0.12);
}

.chat-tool-chevron {
    color: var(--accent-primary);
    font-size: 0.6rem;
    transition: transform 0.15s;
    flex-shrink: 0;
}

.chat-tool-call:not(.collapsed) .chat-tool-chevron {
    transform: rotate(90deg);
}

.chat-tool-name {
    color: var(--accent-secondary);
    font-family: var(--font-mono);
    font-weight: 600;
    flex-shrink: 0;
}

.chat-tool-summary {
    color: var(--text-muted);
    font-family: var(--font-mono);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    flex: 1;
}

.chat-tool-call:not(.collapsed) .chat-tool-summary {
    display: none;
}

.chat-tool-meta {
    color: var(--text-muted);
    flex-shrink: 0;
    margin-left: auto;
    opacity: 0.7;
}

.chat-tool-search {
    flex-shrink: 0;
    color: var(--text-muted);
    opacity: 0.5;
    cursor: pointer;
    padding: 0 0.15rem;
    line-height: 1;
    transition: var(--transition);
}

.chat-tool-search:hover {
    opacity: 1;
    color: var(--accent-primary);
}

.chat-tool-query {
    margin: 0;
    padding: 0.15rem 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-word;
    background: transparent;
}

.chat-tool-call.collapsed .chat-tool-query,
.chat-tool-call.collapsed .chat-tool-result {
    display: none;
}

/* ---- Tool results ---- */

.chat-tool-result {
    padding: 0.2rem 0.5rem 0.25rem;
    border-top: 1px solid var(--border-color);
}

.chat-tool-empty {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-style: italic;
}

.chat-tool-fields {
    font-size: 0.68rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    line-height: 1.5;
    word-break: break-word;
}

.chat-mini-table-wrap {
    overflow-x: auto;
    max-height: 150px;
    overflow-y: auto;
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

.chat-mini-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.68rem;
    font-family: var(--font-mono);
}

.chat-mini-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}

.chat-mini-table th {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    padding: 0.15rem 0.4rem;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
    border-bottom: 1px solid var(--border-color);
}

.chat-mini-table td {
    padding: 0.1rem 0.4rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    max-width: 180px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.chat-mini-table tr:last-child td {
    border-bottom: none;
}

.chat-mini-table tr:hover td {
    background: var(--bg-hover);
}

.chat-table-note {
    padding: 0.2rem 0.4rem;
    font-size: 0.68rem;
    color: var(--text-muted);
    text-align: right;
}

/* ---- Presentation block (present_results) ---- */

.chat-presentation {
    font-size: 0.8rem;
    line-height: 1.5;
}

.chat-present-summary {
    color: var(--text-primary);
}

.chat-severity-badge {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.1em 0.4em;
    border-radius: 3px;
    vertical-align: middle;
    margin-right: 0.3em;
}

.chat-severity-warning {
    background: rgba(255, 193, 7, 0.15);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

.chat-severity-critical {
    background: rgba(244, 67, 54, 0.15);
    color: #f44336;
    border: 1px solid rgba(244, 67, 54, 0.3);
}

.chat-findings-table {
    margin-top: 0.4rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.chat-finding-row {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
}

.chat-finding-row:last-child {
    border-bottom: none;
}

.chat-finding-label {
    flex: 0 0 40%;
    padding: 0.2rem 0.5rem;
    color: var(--text-muted);
    font-weight: 600;
    background: var(--bg-tertiary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-finding-value {
    flex: 1;
    padding: 0.2rem 0.5rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    word-break: break-word;
}

.chat-finding-row:hover {
    background: var(--bg-hover);
}

/* ---- Error state ---- */

.chat-error {
    color: var(--error);
    font-size: 0.8rem;
}

/* ---- Input area ---- */

.chat-input-row {
    padding: 0.5rem 1rem;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.chat-input-wrapper {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.4rem 0.5rem 0.4rem 0.75rem;
    transition: border-color 0.15s;
}

.chat-input-wrapper:focus-within {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.chat-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.875rem;
    line-height: 1.5;
    resize: none;
    min-height: 24px;
    max-height: 150px;
    overflow-y: auto;
}

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

.chat-input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-send-btn {
    background: var(--accent-primary);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    align-self: flex-end;
}

.chat-send-btn:hover {
    background: var(--accent-secondary);
    box-shadow: var(--shadow-glow);
}

.chat-send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    box-shadow: none;
}

.chat-send-btn.loading {
    animation: chat-pulse 1s ease-in-out infinite;
}

/* ---- Instructions selector (in header) ---- */

.chat-instruction-select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-family: var(--font-main);
    cursor: pointer;
    outline: none;
    transition: var(--transition);
    max-width: 160px;
    margin-left: 0.5rem;
}

.chat-instruction-select:hover,
.chat-instruction-select:focus {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

/* ---- Instructions sidebar button ---- */

.chat-instructions-btn {
    flex: 1;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.3rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.7rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
}

.chat-instructions-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.chat-instructions-btn svg {
    flex-shrink: 0;
}

/* ---- Instructions panel (overlay) ---- */

.chat-instructions-panel {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: 20;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-instructions-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.chat-instructions-panel-header h3 {
    margin: 0;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.chat-instructions-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    line-height: 1;
    padding: 0.2rem;
    transition: var(--transition);
}

.chat-instructions-close-btn:hover {
    color: var(--text-primary);
}

.chat-instructions-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.chat-instruction-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem;
    transition: var(--transition);
}

.chat-instruction-card:hover {
    border-color: var(--accent-primary);
}

.chat-instruction-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.4rem;
}

.chat-instruction-card-name {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.chat-instruction-default-badge {
    font-size: 0.6rem;
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
    padding: 0.05rem 0.3rem;
    border-radius: 3px;
    opacity: 0.8;
}

.chat-instruction-card-actions {
    display: flex;
    gap: 0.3rem;
}

.chat-instruction-card-actions button {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.7rem;
    padding: 0.15rem 0.3rem;
    border-radius: 3px;
    transition: var(--transition);
}

.chat-instruction-card-actions button:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.chat-instruction-card-actions button.danger:hover {
    color: var(--error);
}

.chat-instruction-card-preview {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.4;
    white-space: pre-wrap;
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-instructions-panel-footer {
    border-top: 1px solid var(--border-color);
    padding: 0.75rem;
    flex-shrink: 0;
}

.chat-instructions-add-btn {
    width: 100%;
    background: none;
    border: 1px dashed var(--border-color);
    color: var(--text-muted);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition);
}

.chat-instructions-add-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* ---- Instruction editor (inline in panel) ---- */

.chat-instruction-editor {
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    overflow-y: auto;
}

.chat-instruction-editor label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}

.chat-instruction-editor input[type="text"] {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: var(--font-main);
    outline: none;
    transition: var(--transition);
}

.chat-instruction-editor input[type="text"]:focus {
    border-color: var(--accent-primary);
}

.chat-instruction-editor textarea {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.6rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: var(--font-main);
    outline: none;
    resize: vertical;
    min-height: 120px;
    flex: 1;
    line-height: 1.5;
    transition: var(--transition);
}

.chat-instruction-editor textarea:focus {
    border-color: var(--accent-primary);
}

.chat-instruction-editor-actions {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
}

.chat-instruction-editor-actions button {
    padding: 0.35rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.chat-instruction-save-btn {
    background: var(--accent-primary);
    border: none;
    color: white;
}

.chat-instruction-save-btn:hover {
    background: var(--accent-secondary);
}

.chat-instruction-cancel-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}

.chat-instruction-cancel-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

.chat-instruction-default-toggle {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
}

.chat-instruction-default-toggle input {
    accent-color: var(--accent-primary);
}

.chat-instructions-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 2rem 1rem;
    line-height: 1.5;
}