@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:wght@400;600;700&family=Work+Sans:wght@400;500;600;700&display=swap');

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; overflow: hidden; }

:root {
    --primary: #c05621;
    --primary-dark: #9c4419;
    --primary-light: #d87743;
    --accent: #d4a574;
    --bg: #0f1419;
    --bg-elevated: #1a1f26;
    --surface: #161b22;
    --surface-hover: #1f2530;
    --text: #e6edf3;
    --text-secondary: #8b949e;
    --text-tertiary: #6e7681;
    --border: #30363d;
    --border-subtle: #21262d;
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
    --font-display: 'Crimson Pro', Georgia, serif;
    --font-body: 'Work Sans', system-ui, sans-serif;
    --header-h: 52px;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

/* ==================== LAYOUT ==================== */

.app-root {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.app-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* ==================== HEADER ==================== */

.app-header {
    height: var(--header-h);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 16px;
    flex-shrink: 0;
    z-index: 100;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.brand-icon {
    width: 26px;
    height: 26px;
    border-radius: 6px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
}

.brand-name {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: -0.3px;
}

.url-bar-wrap {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0 12px;
    height: 34px;
    transition: border-color 0.15s;
}

.url-bar-wrap:focus-within {
    border-color: var(--primary);
}

.url-bar-icon {
    color: var(--primary);
    font-size: 14px;
    flex-shrink: 0;
}

.url-bar {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 13px;
}

.url-bar::placeholder { color: var(--text-tertiary); }

.ingest-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 5px;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.15s;
    flex-shrink: 0;
}

.ingest-btn:hover { background: var(--primary-dark); }
.ingest-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.header-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    width: 32px;
    height: 32px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.icon-btn:hover {
    background: var(--surface-hover);
    color: var(--text);
    border-color: var(--primary);
}

#toggleCategoryBtn { width: auto; padding: 0 10px; font-size: 12px; font-weight: 500; }

/* ==================== CATEGORY SIDEBAR (right overlay) ==================== */

.category-sidebar {
    position: fixed;
    top: var(--header-h);
    right: 0;
    bottom: 0;
    width: 220px;
    background: var(--surface);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 60;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow: hidden;
}
.category-sidebar.open { transform: translateX(0); }

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    height: 44px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}
.sidebar-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.sidebar-btn {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.15s, color 0.15s;
}
.sidebar-btn:hover { background: var(--surface-hover); color: var(--text); }

.category-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}
.category-list::-webkit-scrollbar { width: 3px; }
.category-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.category-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: background 0.1s, border-left-color 0.1s;
}
.category-item:hover { background: var(--surface-hover); }
.category-item.active { background: rgba(192,86,33,0.07); border-left-color: var(--primary); }

.category-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.category-name { flex: 1; font-size: 13px; color: var(--text); font-weight: 400; }
.category-count { font-size: 11px; color: var(--text-tertiary); }

.show-all-btn {
    margin: 8px 14px 12px;
    padding: 6px 0;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
    font-family: var(--font-body);
    font-size: 12px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}
.show-all-btn:hover { background: var(--surface-hover); color: var(--text); }

/* ==================== CANVAS CARD STATES ==================== */

.canvas-card { border-left: 3px solid transparent; transition: opacity 0.3s, filter 0.3s; }
.canvas-card.dimmed { opacity: 0.15; filter: grayscale(0.8); pointer-events: none; }
.canvas-card.highlighted { box-shadow: 0 0 12px rgba(192, 86, 33, 0.3); }
.canvas-card.card-duplicate {
    border-color: #e6a817 !important;
    box-shadow: 0 0 0 1px rgba(230, 168, 23, 0.3) !important;
}

@keyframes highlightPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(192, 86, 33, 0.6); }
    50%       { box-shadow: 0 0 0 10px rgba(192, 86, 33, 0); }
}
.card-highlight-pulse { animation: highlightPulse 0.5s ease-out 2; }

.cluster-label {
    position: absolute;
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    pointer-events: none;
    white-space: nowrap;
}

/* ==================== CHAT PANEL ==================== */

.chat-panel {
    width: 300px;
    min-width: 240px;
    max-width: 520px;
    background: var(--surface);
    border-right: none;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.2s, min-width 0.2s;
    flex-shrink: 0;
    z-index: 10;
}
.chat-panel.collapsed { width: 0 !important; min-width: 0 !important; }

/* Resize handle */
.chat-resize-handle {
    width: 5px;
    background: var(--border);
    cursor: col-resize;
    flex-shrink: 0;
    transition: background 0.15s;
    z-index: 11;
}
.chat-resize-handle:hover,
.chat-resize-handle.dragging { background: var(--primary); }
.chat-panel.collapsed + .chat-resize-handle { display: none; }

/* --- Headers --- */
.chat-header {
    display: flex;
    align-items: center;
    padding: 0 12px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    height: 44px;
    gap: 6px;
}
.chat-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chat-header-actions { display: flex; gap: 4px; }

/* Mode toggle */
#historyModeHeader { display: none; }
.chat-panel.history-mode #chatModeHeader  { display: none; }
.chat-panel.history-mode #historyModeHeader { display: flex; }

#peopleModeHeader { display: none; }
.chat-panel.people-mode #chatModeHeader   { display: none; }
.chat-panel.people-mode #peopleModeHeader { display: flex; }

#notesModeHeader { display: none; }
.chat-panel.notes-mode #chatModeHeader   { display: none; }
.chat-panel.notes-mode #notesModeHeader  { display: flex; }

/* Header text buttons */
.chat-hdr-btn {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    white-space: nowrap;
    transition: background 0.15s, color 0.15s;
    flex-shrink: 0;
}
.chat-hdr-btn:hover { background: var(--surface-hover); color: var(--text); }
.chat-hdr-btn--primary { color: var(--primary); }
.chat-hdr-btn--primary:hover { background: rgba(192,86,33,0.1); color: var(--primary-light); }
.chat-hdr-btn--back { padding-left: 2px; }

/* --- Chat view --- */
.chat-view {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.chat-panel.history-mode .chat-view { display: none; }
.chat-panel.people-mode .chat-view  { display: none; }
.chat-panel.notes-mode .chat-view   { display: none; }

/* --- History view --- */
.history-view {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.chat-panel.history-mode .history-view { display: flex; }
.chat-panel.people-mode .history-view  { display: none; }
.chat-panel.notes-mode .history-view   { display: none; }

/* --- People view --- */
.people-view {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}
.chat-panel.people-mode .people-view { display: flex; }

.people-list { padding: 12px; display: flex; flex-direction: column; gap: 10px; }

.person-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
}
.person-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 6px;
    margin-bottom: 2px;
}
.person-card-header .person-name { margin-bottom: 0; }
.person-delete-btn {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 11px;
    padding: 2px 4px;
    border-radius: 3px;
    opacity: 0;
    flex-shrink: 0;
    transition: opacity 0.15s, color 0.15s;
}
.person-card:hover .person-delete-btn { opacity: 1; }
.person-delete-btn:hover { color: #ff6b6b; }
.person-delete-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.person-name { font-size: 14px; font-weight: 600; color: var(--text); margin-bottom: 2px; }
.person-meta { font-size: 11px; color: var(--text-tertiary); margin-bottom: 6px; }
.person-rel {
    display: inline-block;
    font-size: 11px;
    background: rgba(192,86,33,0.12);
    color: var(--primary-light);
    border: 1px solid rgba(192,86,33,0.25);
    border-radius: 4px;
    padding: 2px 7px;
    margin-bottom: 8px;
}
.person-section-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin: 8px 0 4px;
}
.person-action-items { list-style: disc; padding-left: 16px; margin: 0; }
.person-action-items li { font-size: 12px; color: var(--text-secondary); margin-bottom: 2px; }
.person-note {
    font-size: 12px;
    color: var(--text-secondary);
    padding: 5px 0;
    border-top: 1px solid var(--border-subtle);
}
.person-note-date { font-size: 10px; color: var(--text-tertiary); margin-bottom: 2px; }
.people-loading, .people-empty {
    padding: 32px 16px;
    text-align: center;
    font-size: 13px;
    color: var(--text-tertiary);
    line-height: 1.8;
}

/* ==================== NOTES VIEW ==================== */

.notes-view {
    display: none;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}
.chat-panel.notes-mode .notes-view { display: flex; }

.notes-list { padding: 12px; display: flex; flex-direction: column; gap: 10px; }

.note-card {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
}
.note-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 6px;
    margin-bottom: 3px;
}
.note-card-title { font-size: 13px; font-weight: 600; color: var(--text); flex: 1; }
.note-delete-btn {
    background: transparent; border: none; color: var(--text-tertiary);
    cursor: pointer; font-size: 11px; padding: 2px 4px; border-radius: 3px;
    opacity: 0; flex-shrink: 0; transition: opacity 0.15s, color 0.15s;
}
.note-card:hover .note-delete-btn { opacity: 1; }
.note-delete-btn:hover { color: #ff6b6b; }

.note-card-date { font-size: 10px; color: var(--text-tertiary); margin-bottom: 6px; }
.note-card-summary { font-size: 12px; color: var(--text-secondary); line-height: 1.5; margin-bottom: 4px; }

.note-card details { margin-top: 4px; }
.note-card-expand {
    font-size: 11px; cursor: pointer; color: var(--text-tertiary);
    user-select: none; list-style: none; padding: 3px 0;
}
.note-card-expand::-webkit-details-marker { display: none; }
.note-card-expand::before { content: '▸ '; font-size: 10px; }
.note-card details[open] .note-card-expand::before { content: '▾ '; }
.note-card-expand:hover { color: var(--text-secondary); }

.note-card-full {
    font-size: 11.5px; color: var(--text-secondary); line-height: 1.6;
    white-space: pre-wrap; padding: 8px; background: var(--surface);
    border-radius: 4px; border: 1px solid var(--border-subtle);
    margin-top: 6px; max-height: 300px; overflow-y: auto;
}
.note-card-full::-webkit-scrollbar { width: 3px; }
.note-card-full::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.note-card-tags { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
.note-card-tag {
    font-size: 10px; padding: 2px 7px;
    background: rgba(192,86,33,0.15); color: var(--primary-light);
    border-radius: 10px; border: 1px solid rgba(192,86,33,0.25);
}

.notes-loading, .notes-empty {
    padding: 32px 16px; text-align: center;
    font-size: 13px; color: var(--text-tertiary); line-height: 1.8;
}

/* History list */
.history-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0 12px;
}
.history-list::-webkit-scrollbar { width: 3px; }
.history-list::-webkit-scrollbar-track { background: transparent; }
.history-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.history-group-label {
    padding: 14px 16px 5px;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    color: var(--text-tertiary);
}
.history-item {
    padding: 9px 14px 9px 13px;
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: background 0.1s, border-left-color 0.1s;
}
.history-item:hover { background: var(--surface-hover); }
.history-item.active {
    background: rgba(192,86,33,0.07);
    border-left-color: var(--primary);
}
.history-item-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.4;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}
.history-item-meta { font-size: 11px; color: var(--text-tertiary); line-height: 1.3; }
.history-item.active .history-item-meta { color: var(--text-secondary); }

.history-loading, .history-empty {
    padding: 40px 16px 20px;
    font-size: 13px;
    color: var(--text-tertiary);
    text-align: center;
    line-height: 1.8;
}

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.messages::-webkit-scrollbar { width: 4px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.message { display: flex; flex-direction: column; }

.message-bubble {
    padding: 9px 12px;
    border-radius: 10px;
    font-size: 13px;
    line-height: 1.55;
    max-width: 100%;
    word-break: break-word;
}

.message.user .message-bubble {
    background: var(--primary);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 3px;
}

.message.assistant .message-bubble {
    background: var(--bg-elevated);
    color: var(--text);
    align-self: flex-start;
    border-bottom-left-radius: 3px;
    border: 1px solid var(--border-subtle);
}

.message.assistant .message-bubble p { margin: 0 0 6px; }
.message.assistant .message-bubble p:last-child { margin-bottom: 0; }
.message.assistant .message-bubble strong { color: var(--accent); }
.message.assistant .message-bubble a {
    color: var(--primary-light);
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-color: rgba(216, 119, 67, 0.4);
}
.message.assistant .message-bubble a:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
}
.message.assistant .message-bubble ul, .message.assistant .message-bubble ol {
    padding-left: 16px;
    margin: 4px 0;
}
.message.assistant .message-bubble li { margin: 2px 0; }

/* Loading dots */
.loading-dots { display: flex; gap: 4px; padding: 2px 0; }
.loading-dots span {
    width: 6px; height: 6px;
    background: var(--text-tertiary);
    border-radius: 50%;
    animation: dotBounce 1.2s infinite;
}
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dotBounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

.message-sources { margin-top: 8px; }
.sources-label { font-size: 11px; color: var(--text-tertiary); cursor: pointer; user-select: none; padding: 4px 0; list-style: none; }
.sources-label::-webkit-details-marker { display: none; }
.sources-label::before { content: '▸ '; font-size: 10px; }
.message-sources[open] .sources-label::before { content: '▾ '; }
.sources-label:hover { color: var(--text-secondary); }
.sources-chips { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 6px; }
.source-chip {
    font-size: 11px;
    background: var(--surface-hover);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 2px 8px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.chat-input-area {
    padding: 10px 12px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    gap: 8px;
    align-items: flex-end;
    flex-shrink: 0;
}

.chat-input-area textarea {
    flex: 1;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 13px;
    padding: 8px 10px;
    resize: none;
    outline: none;
    line-height: 1.4;
    transition: border-color 0.15s;
}

.chat-input-area textarea:focus { border-color: var(--primary); }
.chat-input-area textarea::placeholder { color: var(--text-tertiary); }

.send-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    width: 34px;
    height: 34px;
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.15s;
}
.send-btn:hover { background: var(--primary-dark); }

/* ==================== CANVAS ==================== */

.canvas-viewport {
    flex: 1;
    overflow: hidden;
    position: relative;
    cursor: grab;
    background: var(--bg);
    background-image:
        radial-gradient(circle at 20% 30%, rgba(192,86,33,0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(212,165,116,0.04) 0%, transparent 50%);
}

.canvas-viewport:active { cursor: grabbing; }

/* Dot grid pattern */
.canvas-viewport::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: radial-gradient(circle, rgba(255,255,255,0.06) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
    z-index: 0;
}

.canvas-surface {
    position: absolute;
    top: 0;
    left: 0;
    transform-origin: 0 0;
    min-width: 4000px;
    min-height: 3000px;
    z-index: 1;
}

.edges-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: visible;
    z-index: 0;
}

/* ==================== CARDS ==================== */

.canvas-card {
    position: absolute;
    width: 260px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: grab;
    user-select: none;
    transition: box-shadow 0.15s, border-color 0.15s;
    overflow: hidden;
    z-index: 2;
}

.canvas-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(0,0,0,0.5), 0 0 0 1px rgba(192,86,33,0.3);
}

.canvas-card:active { cursor: grabbing; }

/* Type accent colors */
.card-youtube  { border-top: 2px solid #ff4444; }
.card-tiktok   { border-top: 2px solid #69c9d0; }
.card-instagram{ border-top: 2px solid #e1306c; }
.card-webpage  { border-top: 2px solid #4a9eff; }
.card-note     { border-top: 2px solid var(--accent); }
.card-document { border-top: 2px solid #7c5cbf; }
.card-text     { border-top: 2px solid var(--accent); }

.card-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px 4px;
}

.card-type-icon {
    font-size: 13px;
    color: var(--primary);
}

.card-type-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
    flex: 1;
}

.card-category {
    font-size: 9px;
    font-weight: 500;
    padding: 1px 6px;
    border-radius: 8px;
    white-space: nowrap;
    margin-right: 4px;
}

.card-delete-btn {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 11px;
    padding: 2px 4px;
    border-radius: 3px;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s;
    pointer-events: all;
}

.canvas-card:hover .card-delete-btn { opacity: 1; }
.card-delete-btn:hover { color: #ff6b6b; }

.card-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    display: block;
}

.card-body { padding: 8px 10px 10px; }

.card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.35;
    margin-bottom: 5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-summary {
    font-size: 11.5px;
    color: var(--text-secondary);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 6px;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}

.card-tag {
    font-size: 10px;
    padding: 2px 7px;
    background: rgba(192,86,33,0.15);
    color: var(--primary-light);
    border-radius: 10px;
    border: 1px solid rgba(192,86,33,0.25);
}

.card-footer {
    padding: 5px 10px 8px;
    border-top: 1px solid var(--border-subtle);
}

.card-url {
    font-size: 10px;
    color: var(--text-tertiary);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}
.card-url:hover { color: var(--primary-light); }

/* Processing state */
.card-processing-indicator {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 0;
    color: var(--text-tertiary);
    font-size: 12px;
}

.card-error {
    color: #ff6b6b;
    font-size: 12px;
    padding: 6px 0;
}

/* ==================== SPINNER ==================== */

.spinner-small {
    width: 14px;
    height: 14px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    flex-shrink: 0;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ==================== EMPTY STATE ==================== */

.empty-state {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 0;
    pointer-events: none;
    gap: 12px;
    text-align: center;
    padding: 40px;
}

.empty-icon { font-size: 48px; opacity: 0.4; }

.empty-state h2 {
    font-family: var(--font-display);
    font-size: 22px;
    color: var(--text-secondary);
    font-weight: 600;
}

.empty-state p { font-size: 14px; color: var(--text-tertiary); }

.empty-examples {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 4px;
}

.empty-examples span {
    font-size: 12px;
    padding: 4px 12px;
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-tertiary);
}

/* ==================== NODE DETAIL PANEL ==================== */

.node-detail-panel {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 380px;
    background: var(--surface);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform 0.25s;
    overflow-y: auto;
    z-index: 50;
    display: flex;
    flex-direction: column;
}

.node-detail-panel.open { transform: translateX(0); }

.node-detail-panel::-webkit-scrollbar { width: 4px; }
.node-detail-panel::-webkit-scrollbar-thumb { background: var(--border); }

.detail-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
    position: sticky;
    top: 0;
    background: var(--surface);
    z-index: 1;
}

.detail-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    border-radius: 4px;
}
.detail-close:hover { color: var(--text); background: var(--surface-hover); }

.detail-type-badge {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-tertiary);
    padding: 2px 8px;
    border: 1px solid var(--border);
    border-radius: 10px;
}

.type-youtube  { color: #ff4444; border-color: rgba(255,68,68,0.3); }
.type-tiktok   { color: #69c9d0; border-color: rgba(105,201,208,0.3); }
.type-instagram{ color: #e1306c; border-color: rgba(225,48,108,0.3); }
.type-webpage  { color: #4a9eff; border-color: rgba(74,158,255,0.3); }

.detail-content { padding: 16px; }

.detail-thumb {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 14px;
}

.detail-section { margin-bottom: 18px; }

.detail-section h4 {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-tertiary);
    margin-bottom: 7px;
}

.detail-title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.3;
    margin-bottom: 6px;
}

.detail-url {
    font-size: 12px;
    color: var(--text-tertiary);
    text-decoration: none;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.detail-url:hover { color: var(--primary-light); }

.detail-summary {
    font-size: 13.5px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.detail-transcript {
    font-size: 12.5px;
    color: var(--text-secondary);
    line-height: 1.7;
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
    padding: 10px;
    background: var(--bg-elevated);
    border-radius: 6px;
    border: 1px solid var(--border-subtle);
}

.detail-loading {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-tertiary);
    font-size: 13px;
    padding: 20px 0;
}

.detail-error { color: #ff6b6b; font-size: 13px; }

.related-nodes { display: flex; flex-direction: column; gap: 6px; }

.related-node {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: 7px;
    cursor: pointer;
    transition: border-color 0.15s;
}
.related-node:hover { border-color: var(--primary); }

.related-icon { color: var(--primary); font-size: 13px; flex-shrink: 0; }

.related-title {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==================== TOAST ==================== */

.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 13px;
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s;
    pointer-events: none;
    white-space: nowrap;
    z-index: 9999;
    box-shadow: var(--shadow-lg);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-success { border-color: rgba(63,185,80,0.4); color: #3fb950; }
.toast-error   { border-color: rgba(255,107,107,0.4); color: #ff6b6b; }

/* ==================== SETTINGS MODAL ==================== */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 360px;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.modal-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    font-size: 13px;
    padding: 2px 6px;
    border-radius: 4px;
}
.modal-close:hover { background: var(--surface-hover); color: var(--text); }

.modal-body { padding: 16px; display: flex; flex-direction: column; gap: 14px; }

.settings-field { display: flex; flex-direction: column; gap: 5px; }

.settings-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}

.settings-input {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 13px;
    padding: 8px 10px;
    outline: none;
    transition: border-color 0.15s;
}
.settings-input:focus { border-color: var(--primary); }
.settings-input::placeholder { color: var(--text-tertiary); }

.modal-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: flex-end;
}