/* Design tokens from assets/css/base.css — self-contained */
:root {
    --bg: #000000;
    --bg-elev: #0A0A0A;
    --bg-card: #111111;
    --ink: #E5E5E5;
    --ink-muted: #888888;
    --ink-subtle: #555555;
    --accent: #00FFD1;
    --accent-soft: rgba(0, 255, 209, 0.12);
    --accent-glow: rgba(0, 255, 209, 0.35);
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);
    --danger: #FF5C5C;

    --font-mono: "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;
    --font-sans: "Inter", -apple-system, "Segoe UI", system-ui, sans-serif;

    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 16px;

    --dur-fast: 180ms;
    --dur-base: 320ms;
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html, body {
    height: 100%;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 13px;
    overflow: hidden;
}

/* ── Layout ─────────────────────────────────────────── */
#app {
    display: grid;
    grid-template-columns: 260px 1fr;
    grid-template-rows: 1fr 140px;
    height: 100vh;
    gap: 8px;
    padding: 8px;
    background:
        radial-gradient(ellipse 70% 50% at 50% 0%, rgba(0, 255, 209, 0.05), transparent 60%),
        var(--bg);
}

.panel {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-elev);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.02) inset, 0 8px 24px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#panel-controls { grid-column: 1; grid-row: 1; }
#panel-scene    { grid-column: 2; grid-row: 1; }
#panel-log      { grid-column: 1 / -1; grid-row: 2; }

/* ── Panel header ──────────────────────────────────── */
.panel-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 12px;
    border-bottom: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.015);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink-muted);
    flex-shrink: 0;
}

.panel-header span { color: var(--accent); }

/* Agentic RAG title — stands out in the left control panel */
#panel-controls .panel-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
    padding: 10px 14px 8px;
    background: linear-gradient(135deg, rgba(0, 255, 209, 0.08) 0%, transparent 70%);
    border-bottom-color: rgba(0, 255, 209, 0.25);
}

#panel-controls .panel-header .logo-icon {
    font-size: 16px;
    color: var(--accent);
    filter: drop-shadow(0 0 6px var(--accent-glow));
    margin-bottom: 2px;
}

#panel-controls .panel-header .logo-title {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--ink);
    line-height: 1;
}

#panel-controls .panel-header .logo-sub {
    font-size: 9px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    opacity: 0.75;
    margin-top: 2px;
}

/* ── Document input tabs ───────────────────────────── */
.input-tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 6px;
}

.input-tab {
    font-family: var(--font-mono);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    padding: 3px 9px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--ink-muted);
    cursor: pointer;
    transition: color var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast);
}

.input-tab:hover { color: var(--ink); }

.input-tab.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-soft);
}

.input-pane { display: flex; flex-direction: column; gap: 4px; }

.file-input {
    font-size: 10px;
    color: var(--ink-muted);
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    padding: 6px 8px;
    cursor: pointer;
    width: 100%;
}

.file-hint {
    font-size: 9px;
    color: var(--ink-subtle);
    line-height: 1.5;
}

.file-hint-note {
    color: #6ba3f5;
    opacity: 0.8;
}

.image-notice {
    display: flex;
    gap: 7px;
    align-items: flex-start;
    margin-top: 7px;
    padding: 7px 9px;
    border: 1px solid rgba(107, 163, 245, 0.35);
    border-radius: var(--radius-md);
    background: rgba(107, 163, 245, 0.07);
    font-size: 9.5px;
    color: var(--ink);
    line-height: 1.5;
}

.image-notice-icon {
    color: #f5a623;
    flex-shrink: 0;
    font-size: 11px;
    margin-top: 1px;
}

.logo-providers {
    display: flex;
    gap: 5px;
    margin-top: 6px;
}

.provider-chip {
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 2px 7px;
    border-radius: 20px;
    border: 1px solid;
    text-transform: none;
}

.provider-claude {
    color: #e8936a;
    border-color: rgba(232, 147, 106, 0.35);
    background: rgba(232, 147, 106, 0.08);
}

.provider-voyage {
    color: #a0aec0;
    border-color: rgba(160, 174, 192, 0.3);
    background: rgba(160, 174, 192, 0.07);
}

.provider-gemini {
    color: #6ba3f5;
    border-color: rgba(107, 163, 245, 0.35);
    background: rgba(107, 163, 245, 0.08);
}

.panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 10px 12px;
}

/* ── Controls ──────────────────────────────────────── */
.field-group {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-bottom: 9px;
}

label {
    font-size: 11px;
    color: var(--ink-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

textarea, input[type="text"], select {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 11px;
    border-radius: var(--radius-md);
    padding: 6px 10px;
    width: 100%;
    outline: none;
    transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}

textarea:focus, input:focus, select:focus { box-shadow: 0 0 0 3px var(--accent-soft); }

textarea:focus, input:focus, select:focus {
    border-color: var(--accent);
}

textarea { resize: vertical; min-height: 60px; line-height: 1.5; }

/* Custom select — reset native rendering (fixes clipped/half-cut control) */
select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    height: 32px;
    line-height: 1.3;
    padding: 0 28px 0 10px;
    background-color: var(--bg-card);
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' fill='none' stroke='%2300FFD1' stroke-width='1.5'/></svg>");
    background-repeat: no-repeat;
    background-position: right 11px center;
    text-overflow: ellipsis;
    cursor: pointer;
}

select option {
    color: var(--ink);
    background: #0f1413;
}

/* ── Buttons ───────────────────────────────────────── */
.btn {
    font-family: var(--font-mono);
    font-size: 11px;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    padding: 7px 12px;
    cursor: pointer;
    transition: background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast), box-shadow var(--dur-fast);
    width: 100%;
    margin-bottom: 5px;
}

.btn-primary {
    background: linear-gradient(180deg, #00ffd1, #00d9b1);
    color: #00110e;
    border-color: var(--accent);
    font-weight: 600;
    box-shadow: 0 2px 12px rgba(0, 255, 209, 0.25);
}

.btn-primary:hover:not(:disabled) { filter: brightness(1.1); }

.btn-secondary {
    background: transparent;
    color: var(--ink-muted);
}

.btn-secondary:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }

.btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Guided simulation CTA ─────────────────────────── */
.btn-simulate {
    background: linear-gradient(135deg, rgba(0, 255, 209, 0.14), rgba(108, 163, 245, 0.14));
    color: var(--accent);
    border: 1px solid var(--accent);
    font-weight: 600;
    letter-spacing: 0.02em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 6px;
    box-shadow: 0 0 0 0 var(--accent-glow);
    animation: sim-pulse 2.4s ease-in-out infinite;
}
.btn-simulate:hover {
    background: linear-gradient(135deg, rgba(0, 255, 209, 0.24), rgba(108, 163, 245, 0.22));
    box-shadow: 0 0 16px var(--accent-glow);
    animation: none;
}
.btn-simulate .sim-icon { font-size: 10px; }
@keyframes sim-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 209, 0); }
    50%      { box-shadow: 0 0 14px 0 rgba(0, 255, 209, 0.25); }
}
.sim-hint {
    font-family: var(--font-mono);
    font-size: 10px;
    line-height: 1.45;
    color: var(--ink-muted);
    margin: 0 0 14px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* ── Mode toggle ───────────────────────────────────── */
.toggle-group {
    display: flex;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: 9px;
}

.toggle-btn {
    flex: 1;
    padding: 6px 10px;
    font-family: var(--font-mono);
    font-size: 11px;
    background: transparent;
    border: none;
    color: var(--ink-muted);
    cursor: pointer;
    transition: background var(--dur-fast), color var(--dur-fast);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.toggle-btn.active {
    background: var(--accent-soft);
    color: var(--accent);
}

/* ── Stepper ───────────────────────────────────────── */
#stepper {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 14px;
}

.step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 8px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    color: var(--ink-subtle);
    transition: color var(--dur-fast), background var(--dur-fast);
}

.step.active { color: var(--accent); background: var(--accent-soft); }
.step.done { color: var(--ink-muted); }
.step.error { color: var(--danger); background: rgba(255, 92, 92, 0.08); }

.step-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ink-subtle);
    flex-shrink: 0;
    transition: background var(--dur-fast);
}

.step.active .step-dot { background: var(--accent); box-shadow: 0 0 6px var(--accent-glow); }
.step.done .step-dot { background: var(--accent); }
.step.error .step-dot { background: var(--danger); }

/* ── View tabs (center panel) ──────────────────────── */
.view-tabs {
    display: flex;
    gap: 3px;
}

.view-tab {
    font-family: var(--font-mono);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--ink-muted);
    border-radius: var(--radius-sm);
    padding: 3px 7px;
    cursor: pointer;
    transition: color var(--dur-fast), border-color var(--dur-fast), background var(--dur-fast), opacity var(--dur-fast);
}

.view-tab:hover { color: var(--ink); }

/* completed steps — clearly readable, with an accent tint */
.view-tab.done {
    color: var(--ink);
    border-color: rgba(0, 255, 209, 0.4);
}

.view-tab.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-soft);
}

.view-tab b {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px; height: 14px;
    margin-right: 5px;
    border-radius: 50%;
    background: var(--border-strong);
    color: var(--ink);
    font-size: 9px;
    font-weight: 700;
}
.view-tab.active b { background: var(--accent); color: #00110e; }
.view-tab.done b { background: var(--accent); color: #00110e; }

/* not-yet-reached steps — dim but still legible */
.view-tab.locked { opacity: 0.5; cursor: not-allowed; }
.view-tab.locked:hover { color: var(--ink-muted); }

/* ── Step nav buttons (in stage banner) ────────────── */
.stage-nav { margin-left: auto; display: flex; gap: 6px; flex-shrink: 0; }
.step-btn {
    font-family: var(--font-mono);
    font-size: 11px;
    border: 1px solid var(--border-strong);
    background: var(--bg-card);
    color: var(--ink);
    border-radius: var(--radius-md);
    padding: 6px 12px;
    cursor: pointer;
    transition: border-color var(--dur-fast), color var(--dur-fast), box-shadow var(--dur-fast);
}
.step-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.step-btn:disabled { opacity: 0.35; cursor: not-allowed; }
#step-next.ready-pulse { animation: readyPulse 1.4s var(--ease-out) infinite; border-color: var(--accent); color: var(--accent); }

/* ── Guided-tour: lock left controls, flag the Next button ───────────── */
.panel-body.sim-active .field-group,
.panel-body.sim-active #btn-ingest,
.panel-body.sim-active .key-privacy-note {
    opacity: 0.4;
    pointer-events: none;
    filter: grayscale(0.4);
}
.panel-body.sim-active #btn-ingest { box-shadow: none; }

/* Strong tour highlight on Next (overrides the subtler ready-pulse) */
.stage-nav:has(.tour-coach) #step-next {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 0 0 var(--accent-glow);
    animation: tourNext 1.3s var(--ease-out) infinite;
}
@keyframes tourNext {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 255, 209, 0); transform: translateY(0); }
    50%      { box-shadow: 0 0 16px 2px rgba(0, 255, 209, 0.45); transform: translateY(-1px); }
}

/* Coachmark bubble under the nav, pointing up at Next */
.tour-coach {
    position: absolute;
    top: calc(100% + 9px);
    right: 4px;
    z-index: 40;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 1.3;
    color: #00110e;
    background: var(--accent);
    border-radius: var(--radius-md);
    padding: 7px 11px;
    box-shadow: 0 6px 20px rgba(0, 255, 209, 0.3);
    white-space: nowrap;
    animation: coachBob 1.6s ease-in-out infinite;
}
.tour-coach b { font-weight: 700; }
.tour-coach .tour-coach-arrow { font-weight: 700; margin-right: 2px; }
.tour-coach-close {
    margin-left: 10px;
    border: none;
    background: rgba(0, 17, 14, 0.18);
    color: #00110e;
    font-family: var(--font-mono);
    font-size: 10px;
    line-height: 1;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    cursor: pointer;
    vertical-align: middle;
    transition: background var(--dur-fast);
}
.tour-coach-close:hover { background: rgba(0, 17, 14, 0.38); }
.tour-coach.done .tour-coach-close {
    background: var(--bg-elevated, rgba(255,255,255,0.06));
    color: var(--ink-muted);
}
.tour-coach::before {
    content: "";
    position: absolute;
    top: -5px;
    right: 26px;
    width: 10px;
    height: 10px;
    background: var(--accent);
    transform: rotate(45deg);
}
.tour-coach.done {
    background: var(--bg-card);
    color: var(--ink-muted);
    border: 1px solid var(--border-strong);
    box-shadow: none;
    animation: none;
}
.tour-coach.done::before { background: var(--bg-card); border-left: 1px solid var(--border-strong); border-top: 1px solid var(--border-strong); }
@keyframes coachBob {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-3px); }
}
/* stage-nav must anchor the absolutely-positioned coachmark */
.stage-nav { position: relative; }

/* ── Stage banner — prominent step narration ───────── */
.stage-banner {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 12px;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(90deg, var(--accent-soft), transparent 60%);
}

.stage-chip {
    flex-shrink: 0;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #00110e;
    background: var(--accent);
    border-radius: 20px;
    padding: 5px 12px;
    box-shadow: 0 0 14px var(--accent-glow);
}
.stage-chip.idle { background: var(--border-strong); color: var(--ink-muted); box-shadow: none; }
.stage-chip.done { background: var(--accent); }

.stage-title {
    font-size: 14px;
    color: var(--ink);
    letter-spacing: 0.01em;
}
.stage-desc {
    font-size: 11px;
    color: var(--ink-muted);
    margin-top: 2px;
}

/* ── Embed view (text → numbers) ───────────────────── */
.embed-col { display: flex; flex-direction: column; width: 100%; background: var(--bg); }
.embed-list { flex: 1; overflow-y: auto; padding: 10px 14px; display: flex; flex-direction: column; gap: 8px; }

.embed-row {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 12px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    animation: embedIn var(--dur-base) var(--ease-out);
}
.embed-row.q { border-color: rgba(255,255,255,0.4); }

@keyframes embedIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.embed-text {
    font-size: 11px;
    color: var(--ink-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.embed-text b { color: var(--accent); }
.embed-row.q .embed-text b { color: #fff; }

.embed-vec {
    font-size: 11px;
    color: var(--ink);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.embed-vec .dim { color: var(--ink-subtle); }
.embed-arrow { color: var(--ink-subtle); }

/* ── Retrieve / Fuse / Answer panes ────────────────── */
#view-retrieve, #view-fuse, #view-answer { flex-direction: column; }

.retr-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--border);
    flex: 1;
    min-height: 0;
    width: 100%;
}
#view-fuse .retr-col, #view-answer .retr-col { flex: 1; min-height: 0; }

.retr-col {
    background: var(--bg);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.retr-h {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 8px 12px;
    font-size: 11px;
    color: var(--ink);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--bg-elev);
    z-index: 1;
}
.retr-h span {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-muted);
    font-weight: 400;
}
.retr-h[data-c="dense"]  { box-shadow: inset 3px 0 0 var(--accent); }
.retr-h[data-c="sparse"] { box-shadow: inset 3px 0 0 #6fb1ff; }
.retr-h[data-c="fused"]  { box-shadow: inset 3px 0 0 #c7a6ff; }
.retr-h[data-c="answer"] { box-shadow: inset 3px 0 0 var(--ink-muted); }
.retr-h.active { background: var(--accent-soft); }

.retr-list { padding: 10px 12px; display: flex; flex-direction: column; gap: 6px; flex: 1; overflow-y: auto; min-height: 0; }
.retr-wait { font-size: 11px; color: var(--ink-subtle); font-style: italic; padding: 4px 0; }

.retr-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 7px 10px;
    font-size: 11px;
    line-height: 1.5;
}
.retr-card .retr-card-head {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 4px;
    font-size: 10px;
    color: var(--ink-muted);
}
.retr-card .rank { color: var(--ink-subtle); }
.retr-card .cidx { color: var(--accent); font-weight: 600; }
.retr-card .score { margin-left: auto; }
.retr-card.both { border-color: var(--accent); }
.retr-card .both-tag {
    font-size: 8px; text-transform: uppercase; letter-spacing: 0.06em;
    color: var(--accent); border: 1px solid var(--accent); border-radius: 10px; padding: 0 5px;
}
.retr-card .retr-card-body { color: var(--ink-muted); }
.retr-card mark { background: var(--accent-soft); color: var(--accent); border-radius: 2px; }

.retr-answer {
    padding: 20px 24px;
    font-size: 13.5px;
    line-height: 1.75;
    color: var(--ink);
    font-family: var(--font-sans);
    word-break: break-word;
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

/* Markdown elements inside the answer */
.retr-answer .ans-h { font-family: var(--font-sans); color: var(--ink); font-size: 14px; margin: 14px 0 6px; }
.retr-answer strong { color: var(--ink); font-weight: 600; }
.retr-answer em { color: var(--ink-muted); font-style: italic; }
.retr-answer .ans-code {
    font-family: var(--font-mono); font-size: 12px;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 1px 5px; color: var(--accent);
}
.retr-answer .ans-hr { border: none; border-top: 1px solid var(--border); margin: 12px 0; }
.retr-answer .ans-ul, .retr-answer .ans-ol {
    margin: 6px 0 6px 20px; padding: 0; display: flex; flex-direction: column; gap: 4px;
}
.retr-answer .ans-ul li { list-style: disc; }
.retr-answer .ans-ol li { list-style: decimal; }
.retr-answer li { color: var(--ink); line-height: 1.65; }
.retr-thinking-block {
    flex-shrink: 0;
    border-top: 1px solid var(--border);
    margin-top: 8px;
    opacity: 0.6;
}
.retr-thinking-block .thinking-stream {
    max-height: 100px;
    overflow-y: auto;
    padding: 6px 12px;
    font-size: 10px;
    color: var(--ink-muted);
}
.retr-h--thinking {
    font-size: 9px !important;
    opacity: 0.7;
}

/* inline citation chips */
.cite-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 15px;
    height: 15px;
    padding: 0 4px;
    margin: 0 1px;
    border-radius: 8px;
    background: var(--accent-soft);
    color: var(--accent);
    border: 1px solid var(--accent);
    font-size: 9px;
    font-weight: 700;
    vertical-align: super;
    line-height: 1;
}

/* sources list under the answer */
.answer-sources {
    flex-shrink: 0;
    border-top: 1px solid var(--border);
    padding: 14px 24px 16px;
    overflow-y: auto;
    max-height: 35%;
    background: var(--bg-elev);
}
.answer-sources:empty { display: none; }
.sources-head {
    font-size: 9px; font-family: var(--font-mono); text-transform: uppercase;
    letter-spacing: 0.1em; color: var(--ink-subtle); margin-bottom: 10px;
}
.source-row {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 7px 10px; margin-bottom: 4px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    border: 1px solid var(--border);
    font-family: var(--font-sans);
}
.source-row:hover { border-color: var(--border-strong); }
.source-row .cite-chip { flex-shrink: 0; margin-top: 2px; }
.source-chunk {
    flex-shrink: 0;
    font-size: 10px; font-family: var(--font-mono);
    color: var(--accent); padding-top: 1px;
}
.source-prev {
    font-size: 11px; color: var(--ink-muted); line-height: 1.5;
    overflow: hidden; display: -webkit-box;
    -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    white-space: normal;
}

/* ── Query bar (lives inside the Query step) ───────── */
#view-vectors { flex-direction: column; }

.query-bar {
    display: none;
    flex-shrink: 0;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-top: 1px solid var(--border);
    background: var(--bg-elev);
}
#view-vectors.show-query .query-bar { display: flex; }

.query-bar textarea {
    flex: 1;
    min-width: 200px;
    min-height: 40px;
    max-height: 72px;
    resize: none;
}

.query-bar-side {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.query-bar-row { display: flex; gap: 6px; align-items: center; }
.query-bar-row select { width: 170px; height: 36px; }
.query-bar-row .toggle-group { margin-bottom: 0; width: auto; }
.query-bar .btn { margin-bottom: 0; white-space: nowrap; width: auto; padding: 8px 18px; }

#panel-scene .panel-header #scene-label { margin-left: auto; color: var(--ink-muted); }

.view-pane { flex: 1; overflow: hidden; display: flex; position: relative; animation: paneIn var(--dur-base) var(--ease-out); }

@keyframes paneIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: none; }
}

/* ── Chunking view ─────────────────────────────────── */
.chunk-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    width: 100%;
    background: var(--border);
}

.chunk-doc-col, .chunk-cards-col {
    display: flex;
    flex-direction: column;
    background: var(--bg);
    overflow: hidden;
}

.col-label {
    flex-shrink: 0;
    padding: 8px 14px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink-muted);
    border-bottom: 1px solid var(--border);
}

.col-label span { color: var(--accent); }

.chunk-doc {
    flex: 1;
    overflow-y: auto;
    padding: 14px;
    font-size: 12px;
    line-height: 1.9;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--ink);
}

.doc-placeholder { color: var(--ink-subtle); font-style: italic; }

.chunk-doc .seg { border-radius: 3px; padding: 1px 1px; box-decoration-break: clone; -webkit-box-decoration-break: clone; }
.chunk-doc .seg-overlap { border-radius: 3px; }
.chunk-doc .seg-gap { color: var(--ink-subtle); }

.chunk-doc .seg-badge {
    display: inline-block;
    font-size: 8px;
    font-weight: 700;
    line-height: 1.4;
    padding: 0 4px;
    margin: 0 4px 0 0;
    border: 1px solid currentColor;
    border-radius: 8px;
    vertical-align: 1px;
    opacity: 0.85;
    white-space: nowrap;
}

.chunk-cards {
    flex: 1;
    overflow-y: auto;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chunk-card-full {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    transition: border-color var(--dur-fast), transform var(--dur-fast);
}

.chunk-card-full .chunk-index {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    color: var(--ink-muted);
    margin-bottom: 6px;
}

.chunk-card-full .dot {
    width: 8px; height: 8px; border-radius: 50%;
    display: inline-block; flex-shrink: 0;
}

.chunk-card-full .chunk-body {
    font-size: 11px;
    line-height: 1.6;
    color: var(--ink);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 120px;
    overflow-y: auto;
}

.chunk-card-full.just-added {
    border-color: var(--accent);
    transform: translateX(2px);
}

/* ── 3D scene ──────────────────────────────────────── */
#canvas-wrap {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #0b1512;
}

#rag-canvas { position: relative; z-index: 1; }
.vec-readout, .scene-hint, .scene-legend { z-index: 2; }

/* Legend + count badges (top-right of embedding space) */
.scene-legend {
    position: absolute;
    top: 8px;
    right: 8px;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: flex-end;
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 8px;
    padding: 5px 8px;
    backdrop-filter: blur(4px);
}

.legend-caption {
    font-size: 8px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink);
    text-shadow: 0 1px 4px rgba(0,0,0,0.8);
}

.legend-row { display: flex; gap: 7px; }

.lg {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 9px;
    font-weight: 600;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    text-shadow: 0 1px 4px rgba(0,0,0,0.9);
}

.lg i {
    width: 7px; height: 7px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.legend-counts {
    font-size: 9px;
    font-weight: 600;
    color: var(--ink);
    background: rgba(0, 0, 0, 0.65);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 20px;
    padding: 2px 7px;
    text-shadow: 0 1px 3px rgba(0,0,0,0.9);
}
.legend-counts b { color: var(--accent); }

.scene-hint {
    position: absolute;
    top: 12px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 11px;
    color: var(--ink-muted);
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--dur-base);
    white-space: nowrap;
}

.scene-hint.show { opacity: 1; }

/* Click-a-point detail card */
.vec-detail {
    position: absolute;
    bottom: 12px;
    left: 12px;
    z-index: 4;
    width: 340px;
    max-width: calc(100% - 24px);
    background: rgba(8, 12, 11, 0.92);
    border: 1px solid var(--accent);
    border-radius: var(--radius-md);
    padding: 12px 14px 14px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 0 16px var(--accent-soft);
    display: none;
}
.vec-detail.show { display: block; }
.vec-detail-close {
    position: absolute;
    top: 8px; right: 8px;
    background: transparent; border: none;
    color: var(--ink-muted); font-size: 13px; cursor: pointer;
}
.vec-detail-close:hover { color: var(--accent); }
.vd-title { font-size: 12px; color: var(--accent); font-weight: 600; margin-bottom: 8px; }
.vd-coords, .vd-vec {
    font-size: 11px; color: var(--ink); line-height: 1.6;
    word-break: break-all; margin-bottom: 6px;
}
.vd-k {
    display: inline-block; min-width: 70px;
    font-size: 9px; text-transform: uppercase; letter-spacing: 0.06em;
    color: var(--ink-subtle);
}
.vd-dim { color: var(--ink-subtle); }
.vd-text {
    font-size: 11px; color: var(--ink-muted); line-height: 1.55;
    margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--border);
    max-height: 110px; overflow-y: auto; white-space: pre-wrap;
}

/* Live numeric coordinate readout */
.vec-readout {
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 11px;
    line-height: 1.55;
    color: var(--ink-muted);
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    white-space: pre;
    pointer-events: none;
    max-height: 60%;
    overflow: hidden;
    opacity: 0;
    transition: opacity var(--dur-base);
}

.vec-readout.show { opacity: 1; }
.vec-readout .vec-head {
    color: var(--ink-subtle);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}
.vec-readout .vec-row.q { color: #fff; }

/* Cosine distance table — bottom-left of the 3D canvas */
.cos-table {
    position: absolute;
    bottom: 12px;
    left: 12px;
    font-size: 10.5px;
    font-family: var(--font-mono);
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(6px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    z-index: 2;
    opacity: 0;
    transition: opacity var(--dur-base);
    pointer-events: none;
    min-width: 210px;
}
.cos-table.show { opacity: 1; }
.cos-table-head {
    color: var(--ink-subtle);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}
.cos-table table {
    border-collapse: collapse;
    width: 100%;
}
.cos-table th {
    color: var(--ink-subtle);
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding-bottom: 4px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
.cos-table th:not(:first-child) { text-align: right; }
.cos-table td {
    padding: 3px 0;
    color: var(--ink-muted);
    font-size: 10px;
}
.cos-table td:not(:first-child) { text-align: right; padding-left: 12px; }
.cos-table td.ct-chunk { color: var(--accent); }
.cos-table td.ct-sim { color: #c7a6ff; }
.cos-table td.ct-dist { color: #ffd166; }

/* Pulse the query button once ingest is ready */
.btn-primary.ready-pulse {
    animation: readyPulse 1.4s var(--ease-out) infinite;
}

@keyframes readyPulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
    50%      { box-shadow: 0 0 0 6px transparent; }
}

/* ── Step computing overlay ─────────────────────────── */
/* Shown for 0.8–1.4 s when user clicks Next into a buffered step */
.step-computing {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background: rgba(0,0,0,0.72);
    backdrop-filter: blur(6px);
    z-index: 20;
    opacity: 0;
    transition: opacity 200ms ease;
    pointer-events: none;
}
.step-computing.show { opacity: 1; pointer-events: all; }

.computing-icon {
    font-size: 26px;
    animation: computeSpin 1.2s linear infinite;
}
@keyframes computeSpin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

.computing-label {
    font-size: 11px;
    color: var(--accent);
    font-family: var(--font-mono);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.computing-sub {
    font-size: 10px;
    color: var(--ink-subtle);
    font-family: var(--font-mono);
}

.computing-bar {
    width: 220px;
    height: 2px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}
.computing-bar::after {
    content: '';
    position: absolute;
    left: 0; top: 0;
    width: 45%;
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    animation: computeSlide 0.9s ease-in-out infinite;
}
@keyframes computeSlide {
    0%   { transform: translateX(-100%); }
    100% { transform: translateX(260%); }
}

#rag-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* ── Inspector ─────────────────────────────────────── */
.inspector-section {
    margin-bottom: 16px;
}

.inspector-note {
    font-size: 10px;
    line-height: 1.5;
    color: var(--ink-subtle);
    border-left: 2px solid var(--accent);
    padding: 4px 8px;
    margin-bottom: 8px;
    background: var(--accent-soft);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.inspector-section h3 {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink-muted);
    margin-bottom: 8px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border);
}

.chunk-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 10px;
    margin-bottom: 6px;
    font-size: 11px;
    line-height: 1.5;
    color: var(--ink-muted);
    cursor: pointer;
    transition: border-color var(--dur-fast);
}

.chunk-card:hover { border-color: var(--border-strong); }
.chunk-card.highlighted { border-color: var(--accent); color: var(--ink); }

.chunk-index {
    font-size: 10px;
    color: var(--accent);
    margin-bottom: 4px;
}

.score-row {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.score-pill {
    font-size: 9px;
    padding: 2px 6px;
    border-radius: 20px;
    background: var(--accent-soft);
    color: var(--accent);
}

.score-pill.sparse { background: rgba(107, 177, 255, 0.12); color: #6FB1FF; }
.score-pill.fused  { background: rgba(199, 166, 255, 0.12); color: #C7A6FF; }

.thinking-stream {
    font-size: 11px;
    color: var(--ink-muted);
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 120px;
    overflow-y: auto;
}

.answer-stream {
    font-size: 12px;
    color: var(--ink);
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ── Log ───────────────────────────────────────────── */
#panel-log {
    display: flex;
    flex-direction: column;
}

#log-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 5px 12px;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.log-line {
    font-size: 10px;
    color: var(--ink-muted);
    line-height: 1.5;
    font-family: var(--font-mono);
    white-space: pre;
}

.log-line.accent { color: var(--accent); }
.log-line.danger { color: var(--danger); }
.log-line.muted  { color: var(--ink-subtle); }

/* ── 3-D scene always-visible split layout ─────────── */
/*
 * Once the Retrieve step is reached the centre panel becomes a two-column
 * CSS grid.  The 3-D canvas (left) stays pinned so the user can always see
 * where the query landed in vector space while the right column shows the
 * active tab's content (Retrieve / Fuse / Augment / Answer).
 */
#panel-scene.scene-split {
  display: grid !important;
  grid-template-columns: 60% 5px 1fr;
  grid-template-rows: auto auto 1fr;
}
#panel-scene.scene-split .panel-header {
  grid-column: 1 / -1;
  grid-row: 1;
}
#panel-scene.scene-split .stage-banner {
  grid-column: 1 / -1;
  grid-row: 2;
}
/* 3-D canvas — always in the left column */
#panel-scene.scene-split #view-vectors {
  grid-column: 1;
  grid-row: 3;
  display: flex !important;   /* overrides the JS hide */
  flex-direction: column;
  min-height: 0;
}
/* Vertical resize handle — column 2, hidden outside split mode */
#scene-col-handle { display: none; }
#panel-scene.scene-split #scene-col-handle {
  display: block;
  grid-column: 2;
  grid-row: 3;
  cursor: col-resize;
  background: var(--border);
  transition: background var(--dur-fast);
  z-index: 10;
}
#panel-scene.scene-split #scene-col-handle:hover,
#panel-scene.scene-split #scene-col-handle.dragging { background: var(--accent); }
/* Content panes — right column */
#panel-scene.scene-split .view-pane:not(#view-vectors) {
  grid-column: 3;
  grid-row: 3;
  min-height: 0;
}
/* Query bar: only visible when the Query tab is active */
#panel-scene.scene-split #view-vectors .query-bar { display: none; }
#panel-scene.scene-split.show-query-tab #view-vectors .query-bar { display: flex; }

/* ── Augment view ──────────────────────────────────── */
#view-augment { flex-direction: column; }
.augment-meta {
    flex-shrink: 0;
    padding: 6px 14px;
    font-size: 10px;
    color: var(--ink-subtle);
    border-bottom: 1px solid var(--border);
    background: var(--bg-elev);
    letter-spacing: 0.04em;
}
.augment-list { gap: 10px; }
.augment-passage {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    animation: embedIn var(--dur-base) var(--ease-out);
}
.augment-passage-head {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.augment-chunk-id {
    font-size: 10px;
    color: var(--accent);
    font-family: var(--font-mono);
}
/* User question card at the top of augment view */
.augment-question {
    background: var(--accent-soft);
    border: 1px solid rgba(0,255,209,0.3);
    border-radius: var(--radius-md);
    padding: 10px 14px;
    margin-bottom: 4px;
    animation: embedIn var(--dur-base) var(--ease-out);
}
.augment-question-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent);
    margin-bottom: 5px;
    font-family: var(--font-mono);
}
.augment-question-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--ink);
    font-family: var(--font-sans);
    line-height: 1.5;
}

.augment-passage-text {
    font-size: 11.5px;
    line-height: 1.65;
    color: var(--ink-muted);
    white-space: pre-wrap;
    word-break: break-word;
    font-family: var(--font-sans);
    border-left: 2px solid var(--border-strong);
    padding-left: 10px;
    margin-top: 6px;
}
.aug-expand-btn {
    margin-left: auto;
    background: transparent;
    border: 1px solid var(--border-strong);
    color: var(--ink-muted);
    border-radius: 20px;
    font-size: 10px;
    font-family: var(--font-mono);
    padding: 2px 8px;
    cursor: pointer;
    transition: color var(--dur-fast), border-color var(--dur-fast);
}
.aug-expand-btn:hover { color: var(--accent); border-color: var(--accent); }
.retr-h[data-c="augment"] { box-shadow: inset 3px 0 0 #ffb347; }

/* ── Chunk card expand button ──────────────────────── */
.card-expand-btn {
    margin-left: auto;
    background: transparent;
    border: none;
    color: var(--ink-subtle);
    font-size: 13px;
    cursor: pointer;
    padding: 0 2px;
    line-height: 1;
    transition: color var(--dur-fast);
}
.card-expand-btn:hover { color: var(--accent); }
.retr-card-full {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--border);
    font-size: 11.5px;
    line-height: 1.65;
    color: var(--ink);
    white-space: pre-wrap;
    word-break: break-word;
    font-family: var(--font-sans);
    max-height: 260px;
    overflow-y: auto;
}
.retr-card.card-expanded { border-color: var(--border-strong); }

/* ── Log resize handle ─────────────────────────────── */
#log-resize-handle {
    height: 5px;
    cursor: ns-resize;
    background: transparent;
    border-top: 1px solid var(--border);
    transition: background var(--dur-fast);
    flex-shrink: 0;
}
#log-resize-handle:hover,
#log-resize-handle.dragging { background: var(--accent-soft); border-top-color: var(--accent); }

/* ── API key fields ────────────────────────────────── */
.api-key-wrap {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    transition: border-color var(--dur-fast);
}
.api-key-wrap:focus-within { border-color: var(--accent); }
.api-key-wrap--query {
    width: 100%;
    margin-bottom: 6px;
}
.api-key-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 7px 10px;
    min-width: 0;
}
.api-key-input::placeholder { color: var(--ink-subtle); }
.key-eye {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0 8px;
    font-size: 13px;
    line-height: 1;
    opacity: 0.45;
    transition: opacity var(--dur-fast);
    flex-shrink: 0;
}
.key-eye:hover { opacity: 1; }

.key-privacy-note {
    margin-top: 6px;
    padding: 5px 8px;
    border: 1px solid rgba(0, 255, 209, 0.12);
    border-radius: var(--radius-sm);
    background: rgba(0, 255, 209, 0.04);
    font-size: 9.5px;
    color: var(--ink-subtle);
    line-height: 1.4;
}
.key-privacy-note strong { color: var(--ink-muted); }

/* ── Scrollbars ────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 2px; }