/* --- Variables (Light Theme) --- */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f7f7f8;
    --bg-card: #f0f0f2;
    --bg-input: #ffffff;
    --bg-hover: #ececf1;
    --border-color: #e5e5ea;
    --border-hover: #c5c5d2;
    --text-primary: #1a1a2e;
    --text-secondary: #6b6b80;
    --text-muted: #9b9baf;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-bg: rgba(99, 102, 241, 0.08);
    --primary-fg: #ffffff;
    --success: #16a34a;
    --warning: #d97706;
    --error: #dc2626;
    --info: #2563eb;
    --radius: 12px;
    --radius-sm: 6px;
}

/* --- Reset --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    height: 100vh;
    overflow: hidden;
}
a { color: var(--primary); text-decoration: none; }
code {
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.8em;
    background: var(--bg-card);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* --- Top Navigation --- */
.top-nav {
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
    flex-shrink: 0;
}
.top-nav-left { display: flex; align-items: center; }
.top-nav-logo {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}
.top-nav-version {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--primary);
    margin-left: 1px;
}
.top-nav-tabs { display: flex; gap: 4px; }
.top-nav-tab {
    padding: 6px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s;
}
.top-nav-tab:hover { background: var(--bg-hover); color: var(--text-primary); }
.top-nav-tab.active {
    background: var(--primary-bg);
    color: var(--primary);
}

/* --- Top Nav Right --- */
.top-nav-right { display: flex; align-items: center; gap: 10px; }

.user-chip {
    align-items: center;
    gap: 7px;
    max-width: 240px;
    padding: 4px 6px 4px 5px;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.user-avatar {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary-bg);
    color: var(--primary);
    font-size: 0.72rem;
    font-weight: 700;
    flex-shrink: 0;
}
.user-label {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.78rem;
    font-weight: 600;
}
.logout-btn {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
}
.logout-btn:hover { background: var(--bg-hover); color: var(--text-primary); }

/* --- Backend Switcher --- */
.backend-switcher-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}
.backend-switcher-btn:hover { border-color: var(--border-hover); background: var(--bg-secondary); }
.backend-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--success);
    flex-shrink: 0;
}
.backend-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.1s;
}
.backend-row:hover { background: var(--bg-hover); }
.backend-row.active { background: var(--primary-bg); }
.backend-name { font-size: 0.84rem; font-weight: 600; color: var(--text-primary); white-space: nowrap; }
.backend-url { font-size: 0.75rem; color: var(--text-muted); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.backend-remove {
    width: 20px; height: 20px;
    border: none; background: none;
    color: var(--text-muted); font-size: 1rem;
    cursor: pointer; border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity 0.1s;
}
.backend-row:hover .backend-remove { opacity: 1; }
.backend-remove:hover { background: var(--bg-hover); color: var(--error); }

/* --- Capsule Button --- */
.capsule-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border: none;
    border-radius: 20px;
    background: linear-gradient(135deg, #6366f1, #a855f7, #ec4899);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
    white-space: nowrap;
}
.capsule-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}
.capsule-btn:active { transform: translateY(0); }
.capsule-btn svg { flex-shrink: 0; }

/* --- Popup Overlay --- */
.popup-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(3px);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}
.popup-overlay.show {
    opacity: 1;
    pointer-events: auto;
}
.popup-card {
    background: var(--bg-primary);
    border-radius: 14px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--border-color);
    width: 480px;
    max-width: 90vw;
    animation: popup-in 0.2s ease;
}
@keyframes popup-in {
    from { opacity: 0; transform: translateY(-8px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}
.popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
}
.popup-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}
.popup-close {
    width: 28px;
    height: 28px;
    border: none;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.popup-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.popup-body { padding: 18px; }
.popup-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.5;
}
.popup-link-row {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
}
.popup-link {
    flex: 1;
    font-size: 0.8rem;
    color: var(--primary);
    word-break: break-all;
    background: transparent;
    padding: 0;
}
.popup-copy-btn {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.popup-copy-btn:hover { border-color: var(--primary); color: var(--primary); }
.popup-copy-btn.copied { border-color: var(--success); color: var(--success); }

/* --- Page Content --- */
.page-content { height: calc(100vh - 48px); }

/* --- App Layout (3 columns) --- */
.app-layout { display: flex; height: 100%; }

/* --- Draggable Resizers --- */
.resizer {
    width: 4px;
    cursor: col-resize;
    background: transparent;
    flex-shrink: 0;
    position: relative;
    z-index: 10;
    transition: background 0.15s;
}
.resizer:hover, .resizer.active {
    background: var(--accent-primary, #6366f1);
}
.resizer::after {
    content: '';
    position: absolute;
    top: 0; bottom: 0;
    left: -3px; right: -3px;
}

/* === Left Sidebar === */
.sidebar {
    width: 260px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}
.sidebar-header {
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}
.sidebar-header-main {
    min-width: 0;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sidebar-title { font-weight: 600; font-size: 0.95rem; }
.sidebar-mode-toggle {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}
.sidebar-mode-toggle button {
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    border-radius: 14px;
    padding: 3px 9px;
    font-size: 0.68rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}
.sidebar-mode-toggle button:hover {
    border-color: var(--border-hover);
    color: var(--text-primary);
}
.sidebar-mode-toggle button.active {
    border-color: var(--primary);
    background: var(--primary-bg);
    color: var(--primary);
}
.btn-icon {
    width: 32px; height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.15s;
}
.btn-icon:hover { background: var(--bg-hover); border-color: var(--border-hover); }

.sidebar-search {
    display: flex;
    gap: 4px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-subtle, #f9fafb);
}
.sidebar-search input {
    flex: 1;
    min-width: 0;
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm, 4px);
    font-size: 0.78rem;
    background: var(--bg-input, #fff);
    color: var(--text-primary);
}
.sidebar-search button {
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary, #fff);
    border-radius: var(--radius-sm, 4px);
    font-size: 0.74rem;
    cursor: pointer;
    color: var(--text-secondary);
    white-space: nowrap;
}
.sidebar-search button:hover { background: var(--bg-hover); }

.sidebar-filter {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--primary-bg, #eef2ff);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.78rem;
}
.sidebar-filter-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--primary);
}
.sidebar-filter-clear {
    border: none;
    background: none;
    font-size: 1rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0 2px;
    line-height: 1;
}
.sidebar-filter-clear:hover { color: var(--text-primary); }

.run-list { flex: 1; overflow-y: auto; padding: 6px; }
.run-item {
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-bottom: 2px;
    transition: background 0.15s;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}
.run-item:hover { background: var(--bg-hover); }
.run-item.active { background: var(--primary-bg); }
.run-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}
.run-dot.completed { background: var(--success); }
.run-dot.interrupted { background: var(--warning); }
.run-dot.running { background: var(--info); animation: pulse 1.5s infinite; }
.run-dot.failed { background: var(--error); }
.run-dot.cancelled { background: var(--text-muted); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.runs-loading {
    text-align: center;
    padding: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.run-info-col { flex: 1; min-width: 0; }
.run-preview-row {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
}
.run-preview {
    flex: 1;
    min-width: 0;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
}
.run-fork-badge {
    flex-shrink: 0;
    padding: 0 5px;
    font-size: 0.62rem;
    line-height: 14px;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.run-fork-badge:hover { color: var(--text-primary); border-color: var(--border-hover); }
.run-time { font-size: 0.7rem; color: var(--text-muted); margin-top: 2px; }
.trace-run-type {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-primary);
}
.trace-run-subtitle {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* === Center Chat Panel === */
.chat-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: var(--bg-primary);
    position: relative;
}
.chat-header {
    padding: 10px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 48px;
    gap: 12px;
}
.chat-header-left {
    display: flex; align-items: center; gap: 10px; min-width: 0;
}
.sse-indicator {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--border-color);
    flex-shrink: 0;
    transition: background 0.3s;
}
.sse-indicator.active {
    background: var(--success);
    animation: sse-breathe 2s ease-in-out infinite;
}
@keyframes sse-breathe {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(22, 163, 74, 0.4); }
    50% { opacity: 0.5; box-shadow: 0 0 6px 2px rgba(22, 163, 74, 0.2); }
}
.chat-header-title {
    font-weight: 600; font-size: 0.9rem;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.trace-source-badge {
    flex-shrink: 0;
    padding: 2px 7px;
    border-radius: 999px;
    background: var(--bg-card);
    color: var(--text-secondary);
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
}
.trace-source-conversations { background: rgba(37, 99, 235, 0.1); color: var(--info); }
.trace-source-memory { background: rgba(22, 163, 74, 0.1); color: var(--success); }
.trace-source-unknown { background: rgba(217, 119, 6, 0.1); color: var(--warning); }
.chat-header-meta {
    min-width: 0;
    color: var(--text-muted);
    font-size: 0.76rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chat-header-actions { display: flex; gap: 8px; flex-shrink: 0; align-items: center; }

.btn-fork-jump {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    max-width: 280px;
    transition: border-color 0.15s, color 0.15s;
}
.btn-fork-jump span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.btn-fork-jump:hover { color: var(--text-primary); border-color: var(--border-hover); }

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px 24px 8px;
}
.chat-messages-inner {
    max-width: 720px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-bottom: 16px;
}
.chat-panel.trace-mode .chat-messages,
.chat-panel.table-mode .chat-messages {
    padding: 18px 20px;
}
.chat-panel.trace-mode .chat-messages-inner,
.chat-panel.table-mode .chat-messages-inner {
    max-width: 1040px;
    gap: 10px;
}
.chat-panel.trace-mode .chat-input-area,
.chat-panel.read-only-mode .chat-input-area {
    display: none;
}

.derived-run-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-self: stretch;
    margin-bottom: 2px;
}

.btn-derived-run-jump {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    max-width: 100%;
    padding: 6px 10px;
    color: var(--text-secondary);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.btn-derived-run-jump:hover {
    color: var(--text-primary);
    border-color: var(--border-hover);
    background: var(--bg-hover);
}

.derived-run-label {
    white-space: nowrap;
}

.derived-run-id {
    min-width: 0;
    max-width: 320px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

/* Messages */
.msg { display: flex; gap: 12px; max-width: 85%; }
.msg-user { align-self: flex-end; flex-direction: row-reverse; }
.msg-left { align-self: flex-start; }
.msg-center { align-self: center; max-width: 100%; }

.msg-avatar {
    width: 28px; height: 28px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.7rem; font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}
.msg-user .msg-avatar { background: var(--primary); color: #fff; }
.msg-left .msg-avatar { background: var(--success); color: #fff; }

.msg-body {
    padding: 10px 14px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}
.msg-user .msg-body {
    background: var(--primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}
.msg-left .msg-body {
    background: var(--bg-card);
    border-bottom-left-radius: 4px;
}
.msg-left.msg-error .msg-body {
    background: #fef2f2;
    color: var(--error);
}
.msg-status-text {
    color: var(--text-muted);
    font-size: 0.8rem;
    padding: 4px 12px;
    background: var(--bg-card);
    border-radius: 20px;
    transition: all 0.15s;
}
.msg-center.msg-clickable { cursor: pointer; }
.msg-center.msg-clickable:hover .msg-status-text {
    background: var(--bg-hover);
    color: var(--text-secondary);
}
.msg-loading .msg-body::after {
    content: '';
    display: inline-block;
    width: 6px; height: 6px;
    margin-left: 6px;
    border-radius: 50%;
    background: var(--text-muted);
    animation: blink 1.2s infinite;
}
@keyframes blink { 0%, 100% { opacity: 0.2; } 50% { opacity: 1; } }

/* Status pills */
.status-pill-started { background: rgba(37, 99, 235, 0.08); color: var(--info); }
.status-pill-completed { background: rgba(22, 163, 74, 0.08); color: var(--success); }
.status-pill-interrupted { background: rgba(217, 119, 6, 0.08); color: var(--warning); }
.status-pill-cancelled { background: rgba(155, 155, 175, 0.08); color: var(--text-secondary); }
.status-pill-error { background: rgba(220, 38, 38, 0.08); color: var(--error); }
.status-pill-progress { background: var(--bg-card); color: var(--text-muted); font-style: italic; }

/* Step tags */
.step-tag { font-size: 0.78rem; }
.step-tag.step-finished { background: rgba(22, 163, 74, 0.08); color: var(--success); }

/* Step tags (center pills) */

/* LLM call — collapsed inline pill */
.llm-pill {
    font-size: 0.72rem;
    color: var(--text-muted);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 2px 10px;
    border-radius: 12px;
}
.msg-center.msg-clickable:hover .llm-pill {
    border-color: var(--primary);
    color: var(--text-secondary);
}

/* Step result cards */
.step-card {
    max-width: 90%;
    flex-direction: column;
    gap: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 12px 16px;
    cursor: pointer;
    transition: border-color 0.15s;
}
.step-card:hover { border-color: var(--primary); }
.step-card:has(.chat-story-next-btn:hover) {
    border-color: var(--border-color);
}
.step-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 2px;
}
.step-card-icon {
    color: var(--success);
    font-size: 0.85rem;
    flex-shrink: 0;
}
.step-card-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}
.step-card-summary {
    margin-top: 8px;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* --- Output field system (left-aligned, collapsible) --- */
.out-field {
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
}
.out-field:last-child { border-bottom: none; }
.out-label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 3px;
}
.out-value {
    font-size: 0.82rem;
    color: var(--text-primary);
    line-height: 1.6;
    word-break: break-word;
}
.out-text { white-space: pre-wrap; }
.out-num { color: var(--warning); font-weight: 500; }
.out-bool { color: var(--info); font-weight: 500; }

/* Collapsible fields */
.out-collapsible .out-toggle {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 4px;
    margin: -2px -4px;
    border-radius: 4px;
    transition: background 0.15s;
}
.out-collapsible .out-toggle::before {
    content: '\25b8';
    font-size: 0.75rem;
    color: var(--text-muted);
    transition: transform 0.15s;
    display: inline-block;
    flex-shrink: 0;
}
.out-collapsible .out-toggle:hover { background: var(--bg-hover); color: var(--primary); }
.out-collapsible .out-toggle:hover::before { color: var(--primary); }
.out-collapsed { display: none; }
.out-expanded { display: block; margin-top: 4px; }
.out-collapsible:has(.out-expanded) .out-toggle::before {
    transform: rotate(90deg);
}
.out-expand-hint {
    font-weight: 400;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-left: 4px;
    text-transform: none;
    letter-spacing: 0;
}

/* List rendering */
.out-list { display: flex; flex-direction: column; gap: 4px; }
.out-list-item {
    font-size: 0.8rem;
    color: var(--text-primary);
    line-height: 1.5;
    padding: 4px 0;
    border-bottom: 1px dashed var(--border-color);
}
.out-list-item:last-child { border-bottom: none; }
.out-list-idx {
    color: var(--text-muted);
    font-size: 0.7rem;
    margin-right: 4px;
}

/* Nested object rendering */
.out-obj { padding-left: 8px; }
.out-obj-row {
    padding: 2px 0;
    border-bottom: 1px dashed var(--border-color);
}
.out-obj-row:last-child { border-bottom: none; }
.out-obj-key {
    font-size: 0.72rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-right: 6px;
}
.out-obj-key::after { content: ':'; }
.out-obj-val {
    font-size: 0.8rem;
    color: var(--text-primary);
    word-break: break-word;
}

/* Tags & chips */
.step-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin: 2px 0;
}
.step-tag-chip {
    font-size: 0.7rem;
    background: var(--primary-bg);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 10px;
}

/* Planner card */
.plan-step-list { display: flex; flex-direction: column; gap: 6px; }
.plan-step-item { padding: 6px 8px; background: var(--bg-secondary); border-radius: var(--radius-sm); }
.plan-bindings { margin-top: 4px; padding-left: 8px; font-size: 0.75rem; }
.plan-binding-row { display: flex; gap: 4px; line-height: 1.5; }
.plan-binding-key { color: var(--text-muted); min-width: 80px; }
.plan-binding-key::after { content: ' ←'; }
.plan-binding-val { color: var(--text-secondary); word-break: break-all; }

/* Global chat creation cards */
.chat-creation-card {
    cursor: default;
}
.chat-form-character-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.chat-form-character {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}
.chat-form-character-img,
.chat-form-character-empty {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}
.chat-form-character-img {
    object-fit: cover;
    border: 1px solid var(--border-color);
    cursor: pointer;
}
.chat-form-character-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    color: var(--text-muted);
    border: 1px dashed var(--border-color);
    font-weight: 600;
}
.chat-form-character-meta {
    min-width: 0;
}
.chat-form-character-name {
    color: var(--text-primary);
    font-size: 0.82rem;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.chat-form-character-source {
    color: var(--text-muted);
    font-size: 0.72rem;
}
.chat-creation-card-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-color);
}
.chat-creation-card-hint {
    flex: 1;
    min-width: 0;
    color: var(--text-muted);
    font-size: 0.74rem;
    line-height: 1.4;
}
.chat-story-next-btn {
    flex-shrink: 0;
    border: none;
    background: var(--primary);
    color: #fff;
    border-radius: var(--radius-sm);
    padding: 7px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s, opacity 0.15s;
}
.chat-story-next-btn:hover:not(:disabled) {
    background: var(--primary-hover);
}
.chat-story-next-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* Page snapshot in story/pages_enhancer cards */
.page-snap-item { padding: 6px 8px; background: var(--bg-secondary); border-radius: var(--radius-sm); margin-bottom: 4px; }
.page-snap-item:last-child { margin-bottom: 0; }
.page-snap-header { display: flex; align-items: center; gap: 6px; margin-bottom: 2px; }
.page-snap-idx { font-weight: 600; font-size: 0.8rem; color: var(--primary); }
.page-snap-chars { font-size: 0.75rem; color: var(--text-muted); }
.page-snap-desc { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.5; white-space: pre-line; }

/* TTS card */
.tts-page-group { margin-bottom: 8px; }
.tts-page-group:last-child { margin-bottom: 0; }
.tts-page-name { font-size: 0.72rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 3px; }
.tts-line { display: flex; align-items: baseline; gap: 6px; padding: 3px 0; font-size: 0.82rem; line-height: 1.5; }
.tts-play-btn { flex-shrink: 0; width: 22px; height: 22px; border: none; border-radius: 50%; background: var(--primary-bg); color: var(--primary); font-size: 0.7rem; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.tts-play-btn:hover { background: var(--primary); color: var(--primary-fg); }
.tts-no-audio { flex-shrink: 0; width: 22px; text-align: center; color: var(--text-muted); font-size: 0.7rem; }
.tts-speaker { font-weight: 500; color: var(--primary); white-space: nowrap; }
.tts-speaker::after { content: ':'; margin-right: 2px; }
.tts-type-tag { font-size: 0.7rem; color: var(--text-muted); background: var(--bg-hover); padding: 0 4px; border-radius: 3px; white-space: nowrap; }
.tts-text { color: var(--text-primary); }

/* Image gallery inside step cards */
.image-gallery-inline {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 2px;
}

/* Chat input */
.chat-input-area {
    padding: 12px 24px 16px;
    border-top: 1px solid var(--border-color);
}

/* Run-mode segmented control (Story / Onboarding / Chat) */
.run-mode-bar {
    max-width: 720px;
    margin: 0 auto 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.run-mode-label {
    font-weight: 500;
    color: var(--text-secondary);
}
.run-mode-segmented {
    display: inline-flex;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2px;
    gap: 2px;
}
.run-mode-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 4px 12px;
    font-size: 0.8rem;
    font-family: inherit;
    border-radius: calc(var(--radius) - 3px);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    line-height: 1.4;
}
.run-mode-btn:hover:not(.active):not(:disabled) {
    color: var(--text-primary);
    background: var(--bg-hover, rgba(255,255,255,0.04));
}
.run-mode-btn.active {
    background: var(--primary);
    color: #fff;
}
.run-mode-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.run-mode-hint {
    flex: 1;
    color: var(--text-secondary);
    font-size: 0.75rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.run-mode-hint code {
    background: rgba(99, 102, 241, 0.15);
    padding: 1px 4px;
    border-radius: 3px;
    font-size: 0.72rem;
}
.chat-form {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    gap: 8px;
    align-items: flex-end;
}
#chat-input {
    flex: 1;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 10px 16px;
    font-family: inherit;
    font-size: 0.9rem;
    resize: none;
    line-height: 1.5;
    max-height: 150px;
    overflow-y: auto;
}
#chat-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
}
#chat-input:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-send {
    width: 40px; height: 40px;
    border-radius: var(--radius);
    border: none;
    background: var(--primary);
    color: #fff;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.15s;
    flex-shrink: 0;
}
.btn-send:hover:not(:disabled) { background: var(--primary-hover); }
.btn-send:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-send svg { width: 18px; height: 18px; }

/* Upload button */
.btn-upload {
    width: 40px; height: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.15s;
    flex-shrink: 0;
}
.btn-upload:hover { border-color: var(--primary); color: var(--primary); }
.btn-upload svg { width: 20px; height: 20px; flex-shrink: 0; }

/* Upload preview */
.upload-preview {
    max-width: 720px;
    margin: 0 auto 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.upload-card {
    position: relative;
    display: flex;
    gap: 10px;
    padding: 10px;
    background: var(--bg-card, var(--bg-secondary));
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    align-items: flex-start;
}
.upload-card-remove {
    position: absolute;
    top: -6px; right: -6px;
    width: 20px; height: 20px;
    border-radius: 50%;
    border: none;
    background: var(--error, #ef4444);
    color: #fff;
    font-size: 12px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    line-height: 1;
}
.upload-card-img {
    width: 64px; height: 64px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    flex-shrink: 0;
}
.upload-card-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 160px;
}
.upload-card-desc {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 4px 8px;
    font-size: 0.8rem;
    font-family: inherit;
}
.upload-card-desc:focus { outline: none; border-color: var(--primary); }

/* === Right Detail Panel === */
.detail-panel {
    width: 380px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

/* --- Tab Bar --- */
.detail-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}
.detail-tab {
    flex: 1;
    padding: 10px 12px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
}
.detail-tab:hover { color: var(--text-primary); }
.detail-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* --- Tab Panes --- */
.tab-pane { display: none; }
.tab-pane.active { display: block; }

.detail-content {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}
.detail-section { margin-bottom: 20px; }
.detail-section-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 600;
}
.overview-collapsible {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.overview-collapsible:hover { color: var(--text-primary); }
.collapse-arrow {
    font-size: 0.7rem;
    transition: transform 0.15s;
}

/* Plan flowchart (step list) */
.step-flow { display: flex; flex-direction: column; align-items: center; gap: 0; }
.step-node {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.step-dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}
.step-dot.completed { background: var(--success); }
.step-dot.active { background: var(--info); animation: pulse 1.5s infinite; }
.step-dot.pending { background: var(--text-muted); }
.step-dot.failed { background: var(--error); }
.step-name { flex: 1; }
.step-badge {
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.03em;
}
.step-badge.completed { color: var(--success); }
.step-badge.active { color: var(--info); }
.step-badge.pending { color: var(--text-muted); }
.step-connector-line { width: 2px; height: 16px; background: var(--border-color); }

/* Metadata */
.meta-list { font-size: 0.8rem; }
.meta-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
    gap: 8px;
}
.meta-row:last-child { border-bottom: none; }
.meta-label { color: var(--text-secondary); flex-shrink: 0; }
.meta-value {
    color: var(--text-primary);
    font-family: 'SF Mono', monospace;
    font-size: 0.75rem;
    text-align: right;
    word-break: break-all;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Structured result */
.result-block {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-family: 'SF Mono', monospace;
    font-size: 0.75rem;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 240px;
    overflow-y: auto;
    color: var(--text-secondary);
}

/* Status badges */
.status-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.status-running { background: rgba(37, 99, 235, 0.1); color: var(--info); }
.status-interrupted { background: rgba(217, 119, 6, 0.1); color: var(--warning); }
.status-completed { background: rgba(22, 163, 74, 0.1); color: var(--success); }
.status-failed { background: rgba(220, 38, 38, 0.1); color: var(--error); }
.status-cancelled { background: rgba(155, 155, 175, 0.1); color: var(--text-secondary); }

/* Buttons */
.btn-sm {
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.15s;
}
.btn-sm:hover { border-color: var(--border-hover); color: var(--text-primary); }
.btn-sm.danger:hover { border-color: var(--error); color: var(--error); }
.btn-sm:disabled { opacity: 0.4; cursor: not-allowed; }

/* Empty states */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    padding: 40px;
}
.empty-state h2 { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p { font-size: 0.9rem; max-width: 320px; }

/* Welcome Agent Hint */
.welcome-agent-hint {
    margin-top: 32px;
    padding: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    max-width: 520px;
    text-align: left;
}
.welcome-agent-hint-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}
.welcome-agent-hint-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
    max-width: none;
}
.welcome-agent-hint-cmd {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    word-break: break-all;
    white-space: pre-wrap;
}
.welcome-agent-copy-btn {
    margin-top: 12px;
    padding: 6px 16px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--primary-fg);
    background: var(--primary);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s;
}
.welcome-agent-copy-btn:hover { background: var(--primary-hover); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* --- Clickable Messages --- */
.msg-clickable { cursor: pointer; transition: background 0.15s; border-radius: var(--radius); }
.msg-clickable:hover { background: var(--bg-hover); }

/* --- Event Detail --- */
.event-detail-back {
    padding: 8px 0;
    color: var(--primary);
    font-size: 0.8rem;
    cursor: pointer;
    font-weight: 500;
}
.event-detail-back:hover { text-decoration: underline; }

/* --- Collapsible --- */
.event-detail-collapsible { margin-top: 8px; }
.collapsible-header {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 0;
    user-select: none;
}
.collapsible-header::before { content: '\25b6 '; font-size: 0.6rem; }
.event-detail-collapsible.open .collapsible-header::before { content: '\25bc '; }
.collapsible-body { display: none; margin-top: 4px; }
.event-detail-collapsible.open .collapsible-body { display: block; }

/* --- Step Node Clickable --- */
.step-node-clickable { cursor: pointer; transition: border-color 0.15s; }
.step-node-clickable:hover { border-color: var(--primary); }

/* --- Copy Button --- */
.copy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px;
    color: var(--text-muted);
    border-radius: 3px;
    transition: all 0.15s;
    vertical-align: middle;
    opacity: 0.5;
}
.copy-btn:hover { color: var(--primary); opacity: 1; background: var(--primary-bg); }
.copy-btn.copied { color: var(--success); opacity: 1; }

/* --- Events Tab --- */
.events-filter {
    display: flex;
    gap: 6px;
    margin: 10px 0 14px;
    flex-wrap: wrap;
}
.filter-btn {
    padding: 3px 10px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.15s;
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active {
    background: var(--primary-bg);
    border-color: var(--primary);
    color: var(--primary);
}

.events-table { font-size: 0.75rem; }
.events-table-header {
    display: grid;
    grid-template-columns: minmax(180px, 2.3fr) minmax(90px, 1.1fr) minmax(80px, 0.8fr) minmax(70px, 0.8fr);
    gap: 8px;
    padding: 4px 8px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.68rem;
    letter-spacing: 0.03em;
}
.events-table-row {
    display: grid;
    grid-template-columns: minmax(180px, 2.3fr) minmax(90px, 1.1fr) minmax(80px, 0.8fr) minmax(70px, 0.8fr);
    gap: 8px;
    padding: 6px 8px;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: background 0.1s;
}
.events-table-row:hover { background: var(--bg-hover); }
.events-table-row.focused {
    background: var(--primary-bg);
    box-shadow: inset 3px 0 0 var(--primary);
}
.events-type {
    color: var(--text-primary);
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.events-node {
    color: var(--text-secondary);
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.events-cat {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
}
.events-time {
    color: var(--text-muted);
    font-size: 0.65rem;
    font-family: monospace;
}
.cat-lifecycle { color: var(--info); }
.cat-progress { color: var(--text-muted); }
.cat-llm_call { color: #7c3aed; }
.cat-input { color: var(--primary); }
.cat-output { color: var(--success); }

/* --- Trace Execution --- */
.trace-execution {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}
.trace-toolbar, .trace-filterbar, .events-toolbar {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.events-toolbar {
    flex-wrap: nowrap;
    align-items: stretch;
    margin-bottom: 0;
}
.trace-toolbar {
    justify-content: space-between;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
}
.trace-count {
    color: var(--text-secondary);
    font-size: 0.78rem;
}
.trace-count strong {
    color: var(--text-primary);
}
.trace-search, .events-search {
    min-width: 180px;
    flex: 1;
    padding: 5px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.78rem;
}
.events-search-form {
    min-width: 0;
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    gap: 6px;
}
.events-search-form .events-search {
    min-width: 0;
    height: 34px;
}
.events-search-form .btn-sm,
.events-toolbar > .btn-sm {
    height: 34px;
    flex-shrink: 0;
    white-space: nowrap;
}
.trace-record-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.trace-record {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    gap: 12px;
    align-items: center;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.trace-record:hover {
    border-color: var(--primary);
    background: var(--bg-hover);
}
.trace-record-time {
    color: var(--text-muted);
    font-family: 'SF Mono', monospace;
    font-size: 0.72rem;
}
.trace-record-main {
    min-width: 0;
}
.trace-record-title {
    display: flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text-primary);
}
.trace-record-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.trace-record-subtitle {
    margin-top: 3px;
    font-size: 0.74rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.trace-kind {
    flex-shrink: 0;
    border-radius: 999px;
    padding: 2px 7px;
    font-size: 0.62rem;
    font-weight: 700;
    text-transform: uppercase;
}
.trace-kind.llm { background: rgba(124, 58, 237, 0.1); color: #7c3aed; }
.trace-kind.step { background: rgba(22, 163, 74, 0.1); color: var(--success); }
.trace-kind.input { background: rgba(37, 99, 235, 0.1); color: var(--info); }
.trace-kind.lifecycle { background: var(--bg-card); color: var(--text-secondary); }
.trace-kind.error { background: rgba(220, 38, 38, 0.1); color: var(--error); }
.trace-status {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
}
.trace-status.completed { color: var(--success); }
.trace-status.started { color: var(--info); }
.trace-status.partial { color: var(--warning); }
.trace-status.error { color: var(--error); }
.trace-status.single { color: var(--text-muted); }
.trace-empty {
    padding: 48px 20px;
    color: var(--text-muted);
    text-align: center;
}

/* --- Mermaid DAG --- */
.mermaid-container {
    max-height: 220px;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px;
    background: var(--bg-primary);
    cursor: pointer;
    transition: border-color 0.15s;
}
.mermaid-container:hover { border-color: var(--primary); }
.mermaid-container svg { max-width: 100%; height: auto; }
/* Gantt timeline - fixed viewport, scroll to explore */
.gantt-timeline-container {
    max-height: 360px;
    overflow: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    padding: 4px;
    cursor: pointer;
    transition: border-color 0.15s;
}
.gantt-timeline-container:hover { border-color: var(--primary); }
.gantt-timeline-container svg { min-width: max-content; }

.plan-selector {
    font-size: 0.75rem;
    padding: 2px 6px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
}

/* --- Floating Modal Overlay --- */
.fullscreen-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    animation: overlay-fade-in 0.2s ease;
}
@keyframes overlay-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}
.fullscreen-modal {
    position: relative;
    width: 90vw;
    height: 85vh;
    max-width: 1200px;
    background: var(--bg-primary);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modal-slide-in 0.25s ease;
}
@keyframes modal-slide-in {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
.fullscreen-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}
.fullscreen-modal-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}
.fullscreen-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.fullscreen-close:hover { background: var(--bg-hover); color: var(--text-primary); }
.fullscreen-content {
    flex: 1;
    overflow: auto;
    padding: 16px;
    display: flex;
    position: relative;
}
/* margin:auto centers when smaller, aligns top-left when overflowing */
.fullscreen-content > * { margin: auto; }
/* DAG diagrams fit container; Gantt keeps intrinsic width and scrolls */
.fullscreen-content .mermaid-container svg { max-width: 100%; height: auto; }
.fullscreen-content .gantt-timeline-container svg { min-width: max-content; }

/* --- JSON Viewer --- */
.jv-tree {
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.78rem;
    line-height: 1.7;
    white-space: normal;
}
.jv-k { color: #7c3aed; }
.jv-s { color: #059669; }
.jv-num { color: #d97706; }
.jv-bool { color: #2563eb; }
.jv-null { color: var(--text-muted); font-style: italic; }
.jv-colon, .jv-c { color: var(--text-secondary); }
.jv-b { color: var(--text-secondary); font-weight: 500; }

/* Toggle arrow */
.jv-t {
    cursor: pointer;
    user-select: none;
    display: inline-block;
    width: 1em;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.6rem;
    vertical-align: middle;
}
.jv-t::before { content: '\25B6'; }
.jv-open > .jv-t::before { content: '\25BC'; }
.jv-t:hover { color: var(--primary); }

/* Collapsible body */
.jv-body { padding-left: 20px; }
.jv-shut > .jv-body { display: none; }
.jv-open > .jv-d { display: none; }
.jv-d {
    color: var(--text-muted);
    font-size: 0.72rem;
    margin: 0 3px;
    font-style: italic;
}
.jv-row { display: block; }

/* Long string collapse */
.jv-sl .jv-sf { display: none; }
.jv-sl.jv-sx .jv-sp { display: none; }
.jv-sl.jv-sx .jv-sf { display: inline; }
.jv-sl.jv-sx .jv-sm { display: none; }
.jv-sf { white-space: pre-wrap; word-break: break-word; }
.jv-sm {
    color: var(--primary);
    font-size: 0.68rem;
    cursor: pointer;
    margin-left: 4px;
    background: none;
    border: none;
    font-family: inherit;
    padding: 0 3px;
}
.jv-sm:hover { text-decoration: underline; }

/* Toolbar */
.jv-toolbar {
    display: flex;
    gap: 2px;
    margin-bottom: 4px;
}
.jv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface);
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}
.jv-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* Utility */
.text-muted { color: var(--text-muted); font-style: italic; }

/* --- Image Thumbnails & Lightbox --- */
.image-thumb {
    width: 68px;
    height: 120px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.15s;
}
.image-thumb:hover {
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
    transform: scale(1.03);
}
.lightbox-img {
    max-width: min(80vw, calc(100% - 32px));
    max-height: calc(85vh - 90px);
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
}
.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: none;
    background: var(--bg-card);
    border-radius: 50%;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
    z-index: 1;
}
.lightbox-nav:hover { background: var(--bg-hover); color: var(--text-primary); }
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }

/* --- Mode Toggle --- */
.center-view-toggle {
    display: flex;
    align-items: center;
    gap: 3px;
    padding: 2px;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    background: var(--bg-primary);
}
.center-view-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 11px;
    padding: 3px 8px;
    font-size: 0.72rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
}
.center-view-btn:hover {
    color: var(--text-primary);
}
.center-view-btn.active {
    background: var(--primary-bg);
    color: var(--primary);
}
.mode-toggle {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.mode-toggle:hover { border-color: var(--border-hover); color: var(--text-primary); }
.mode-toggle.mode-detail {
    background: var(--primary-bg);
    border-color: var(--primary);
    color: var(--primary);
}
.mode-toggle svg { flex-shrink: 0; }

/* --- Cancel Button --- */
.btn-cancel {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 14px;
    border: 1px solid var(--error);
    background: rgba(220, 38, 38, 0.06);
    color: var(--error);
    font-size: 0.72rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.btn-cancel:hover {
    background: rgba(220, 38, 38, 0.12);
}
.btn-cancel svg { flex-shrink: 0; }

/* === Docs Page === */
.docs-layout {
    height: 100%;
    display: flex;
    flex-direction: column;
}
.docs-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 24px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
    gap: 12px;
}
.docs-doc-tabs { display: flex; gap: 4px; }
.docs-doc-tab {
    padding: 5px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.docs-doc-tab:hover { border-color: var(--border-hover); color: var(--text-primary); }
.docs-doc-tab.active {
    background: var(--primary-bg);
    border-color: var(--primary);
    color: var(--primary);
}
.docs-lang-tabs { display: flex; gap: 4px; }
.docs-lang-tab {
    padding: 4px 14px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.docs-lang-tab:hover { border-color: var(--border-hover); color: var(--text-primary); }
.docs-lang-tab.active {
    background: var(--primary-bg);
    border-color: var(--primary);
    color: var(--primary);
}
.docs-content-area {
    flex: 1;
    overflow-y: auto;
    padding: 32px 24px;
}
.docs-content {
    max-width: 920px;
    margin: 0 auto;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-primary);
}
.docs-loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* --- Markdown Typography --- */
.docs-content h1 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 36px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-color);
}
.docs-content h1:first-child { margin-top: 0; }
.docs-content h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin: 32px 0 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}
.docs-content h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 24px 0 8px;
}
.docs-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin: 20px 0 6px;
}
.docs-content p { margin-bottom: 12px; }
.docs-content ul, .docs-content ol { margin-bottom: 12px; padding-left: 24px; }
.docs-content li { margin-bottom: 4px; line-height: 1.6; }
.docs-content strong { font-weight: 600; }
.docs-content hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 24px 0;
}

/* Tables */
.docs-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 0.88rem;
}
.docs-content th {
    background: var(--bg-secondary);
    font-weight: 600;
    text-align: left;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
}
.docs-content td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    vertical-align: top;
}
.docs-content tr:hover td { background: rgba(0, 0, 0, 0.015); }

/* Code */
.docs-content pre {
    margin: 16px 0;
    border-radius: var(--radius-sm);
    overflow-x: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}
.docs-content pre code {
    display: block;
    padding: 16px;
    font-size: 0.84rem;
    line-height: 1.6;
    background: transparent;
    border-radius: 0;
}
.docs-content :not(pre) > code {
    font-size: 0.85em;
    background: var(--bg-card);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* Mermaid in docs */
.docs-content .mermaid {
    margin: 20px 0;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    text-align: center;
    overflow-x: auto;
}
.docs-content .mermaid svg { max-width: 100%; height: auto; }

/* Blockquotes */
.docs-content blockquote {
    margin: 12px 0;
    padding: 8px 16px;
    border-left: 4px solid var(--primary);
    background: var(--primary-bg);
    color: var(--text-secondary);
}
.docs-content blockquote p:last-child { margin-bottom: 0; }

/* --- Preview Gallery --- */
.preview-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 48px);
    padding: 24px;
    overflow-y: auto;
}
.preview-search-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    max-width: 640px;
}
.preview-search {
    flex: 1;
    padding: 8px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.88rem;
    outline: none;
    transition: border-color 0.15s;
}
.preview-search:focus { border-color: var(--primary); }
.preview-search-btn {
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--primary);
    color: var(--primary-fg);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s;
}
.preview-search-btn:hover { background: var(--primary-hover); }

.preview-status {
    font-size: 0.85rem;
    margin-bottom: 12px;
    min-height: 1.2em;
}
.preview-status.preview-error { color: var(--error); }

.preview-gallery {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    flex: 1;
}
.preview-loading, .preview-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.preview-card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--bg-secondary);
    overflow: hidden;
    transition: border-color 0.15s, box-shadow 0.15s;
}
.preview-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.preview-thumbs {
    display: flex;
    gap: 2px;
    background: var(--bg-card);
    overflow: hidden;
}
.preview-thumb {
    height: 100px;
    aspect-ratio: 9/16;
    object-fit: cover;
    display: block;
    flex-shrink: 0;
    cursor: pointer;
}
.preview-thumbs-overflow {
    display: flex;
    align-items: center;
    padding: 0 12px;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    flex-shrink: 0;
}
.preview-no-images {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.preview-card-body {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
}
.preview-card-text {
    flex: 1;
    min-width: 0;
}
.preview-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}
.preview-open-btn {
    flex-shrink: 0;
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.84rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}
.preview-open-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--bg-secondary);
}
.preview-status-pill {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
    text-transform: capitalize;
}
.preview-card-date {
    font-size: 0.75rem;
    color: var(--text-muted);
}
.preview-card-user-text {
    font-size: 0.85rem;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 4px;
    line-height: 1.4;
}
.preview-card-summary {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.preview-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 20px 0 8px;
}
.preview-page-btn {
    padding: 6px 18px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.84rem;
    cursor: pointer;
    transition: all 0.15s;
}
.preview-page-btn:hover:not(:disabled) {
    border-color: var(--primary);
    color: var(--primary);
}
.preview-page-btn:disabled {
    opacity: 0.4;
    cursor: default;
}
.preview-page-info {
    font-size: 0.84rem;
    color: var(--text-secondary);
}

@media (max-width: 640px) {
    .preview-container { padding: 16px; }
}

/* === Prompt Config Button === */
.btn-prompt-config {
    width: 40px; height: 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.15s;
    flex-shrink: 0;
    position: relative;
}
.btn-prompt-config:hover { border-color: var(--primary); color: var(--primary); }
.btn-prompt-config svg { width: 20px; height: 20px; flex-shrink: 0; }
.btn-prompt-config.has-overrides::after {
    content: '';
    position: absolute;
    top: 6px; right: 6px;
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--warning);
    border: 2px solid var(--bg-input);
}

/* === Prompt Config Modal === */
.prompt-config-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    animation: overlay-fade-in 0.2s ease;
}
.prompt-config-modal {
    position: relative;
    width: 90vw;
    height: 85vh;
    max-width: 1400px;
    background: var(--bg-primary);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: modal-slide-in 0.25s ease;
}
.prompt-config-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}
.prompt-config-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}
.prompt-config-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.prompt-config-close {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.prompt-config-close:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-small {
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
}
.btn-small:hover { border-color: var(--border-hover); color: var(--text-primary); }
.btn-small.btn-danger { border-color: var(--error); color: var(--error); }
.btn-small.btn-danger:hover { background: rgba(220, 38, 38, 0.06); }

/* --- Prompt Config Body (two-column) --- */
.prompt-config-body {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* Left: prompt list */
.prompt-list {
    width: 30%;
    min-width: 200px;
    max-width: 320px;
    border-right: 1px solid var(--border-color);
    overflow-y: auto;
    background: var(--bg-secondary);
    padding: 8px 0;
}
.prompt-list-section {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 10px 14px 4px;
}
.prompt-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    cursor: pointer;
    transition: background 0.15s;
    border-left: 3px solid transparent;
}
.prompt-list-item:hover { background: var(--bg-hover); }
.prompt-list-item.active {
    background: var(--primary-bg);
    border-left-color: var(--primary);
}
.prompt-list-item.modified {
    border-left-color: var(--warning);
    background: rgba(217, 119, 6, 0.06);
}
.prompt-list-item.modified:hover { background: rgba(217, 119, 6, 0.12); }
.prompt-list-item.modified .prompt-list-id { font-weight: 600; color: var(--warning); }
.prompt-list-id {
    font-size: 0.82rem;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.prompt-modified-badge {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--warning);
    background: rgba(217, 119, 6, 0.1);
    padding: 1px 6px;
    border-radius: 8px;
    flex-shrink: 0;
    margin-left: 6px;
}

/* Right: prompt editor */
.prompt-editor {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.prompt-editor-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Editor fields */
.editor-field { display: flex; flex-direction: column; gap: 6px; flex: 1; min-height: 0; }
.editor-field-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
}
.editor-side-by-side {
    display: flex;
    gap: 12px;
    flex: 1;
    min-height: 0;
}
.editor-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-height: 0;
}
.editor-pane-label {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.editor-textarea {
    flex: 1;
    min-height: 120px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    resize: vertical;
    tab-size: 2;
}
.editor-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.15);
}
.editor-textarea[readonly] {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: default;
}

.editor-actions {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
    padding-top: 8px;
}

.editor-header-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
    flex-shrink: 0;
}
.editor-item-id {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}
.editor-item-type {
    font-size: 0.7rem;
    color: var(--text-muted);
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 3px;
}

.editor-yaml-view {
    flex: 1;
    min-height: 120px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    line-height: 1.5;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
    tab-size: 2;
}
.editor-yaml-edit {
    white-space: pre;
    word-break: normal;
    overflow-wrap: normal;
}

/* YAML syntax highlighting */
.yaml-key { color: #6ab0f3; font-weight: 500; }
.yaml-comment { color: #6a737d; font-style: italic; }
.yaml-pipe { color: #e6c07b; }

/* Scroll-to-bottom button */
.scroll-bottom-btn {
    position: absolute;
    bottom: 70px;
    right: 24px;
    z-index: 10;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--primary-fg);
    background: var(--primary);
    border: none;
    border-radius: 20px;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    transition: background 0.15s, transform 0.15s;
}
.scroll-bottom-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

/* Fork Tree */
.fork-tree-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    font-size: 0.82rem;
    border-radius: var(--radius-sm);
    transition: background 0.1s;
}
.fork-tree-clickable { cursor: pointer; }
.fork-tree-clickable:hover { background: var(--bg-hover); }
.fork-tree-current {
    background: var(--primary-bg);
    font-weight: 600;
}
.fork-tree-connector {
    color: var(--text-muted);
    font-family: monospace;
    font-size: 0.75rem;
    min-width: 20px;
}
.fork-tree-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fork-tree-id { color: var(--text-muted); font-size: 0.75rem; font-family: monospace; }
.fork-tree-badge {
    font-size: 0.68rem;
    padding: 1px 6px;
    border-radius: 8px;
    background: var(--primary);
    color: var(--primary-fg);
    font-weight: 500;
}
.fork-tree-loading { color: var(--text-muted); font-size: 0.82rem; padding: 8px; }
.status-dot {
    width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0;
    background: var(--text-muted);
}
.status-dot.status-running { background: var(--primary); }
.status-dot.status-completed { background: var(--success); }
.status-dot.status-failed { background: var(--error); }
.status-dot.status-interrupted { background: var(--warning); }
.status-dot.status-cancelled { background: var(--text-muted); }

/* Responsive */
@media (max-width: 1100px) { .detail-panel, #resizer-right { display: none; } }
@media (max-width: 768px) { .sidebar, #resizer-left { display: none; } }