/* ═══════════════════════════════════════════════════════
   CSS VARIABLES
═══════════════════════════════════════════════════════ */
:root {
  --bg:        #0a0b0d;
  --surface:   #13151a;
  --border:    #22252e;
  --accent:    #c9a84c;
  --accent-dim:#7a6530;
  --text:      #e8e6e0;
  --text-muted:#6b6d75;
  --text-dim:  #9a9ba3;
  --green:     #4caf7d;
  --red:       #e05c5c;
  --blue:      #5b8dd9;
  --blue-chip: #1e3a5f;
  --pink-chip: #3d1a2e;
  --mono:      'IBM Plex Mono', monospace;
  --sans:      'IBM Plex Sans', sans-serif;
  --serif:     'Playfair Display', serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  height: 100vh;
  overflow: hidden;
}

/* ═══════════════════════════════════════════════════════
   GATE
═══════════════════════════════════════════════════════ */
#gate {
  position: fixed;
  inset: 0;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#gate.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.gate-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  animation: gateIn 0.8s ease forwards;
}
@keyframes gateIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.gate-logo {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--accent-dim);
  user-select: none;
}

.gate-input-wrap { position: relative; width: 320px; }

.gate-cursor {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
  pointer-events: none;
  animation: blink 1.1s step-end infinite;
  line-height: 1;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

#gateInput {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 300;
  padding: 10px 14px 10px 28px;
  outline: none;
  letter-spacing: 0.04em;
  transition: border-color 0.3s;
  caret-color: var(--accent);
}
#gateInput:focus { border-bottom-color: var(--accent-dim); }
#gateInput.error { border-bottom-color: var(--red); animation: shake 0.35s ease; }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
#gateInput::placeholder { color: transparent; }

.gate-hint {
  font-family: var(--mono);
  font-size: 10px;
  color: transparent;
  letter-spacing: 0.08em;
  height: 14px;
  transition: color 0.3s;
}
.gate-hint.show-error { color: var(--red); }

/* ═══════════════════════════════════════════════════════
   DISCLAIMER MODAL
═══════════════════════════════════════════════════════ */
#disclaimerModal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
#disclaimerModal.show { opacity: 1; visibility: visible; }

.disclaimer-box {
  background: #252830;
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent-dim);
  border-radius: 6px;
  padding: 32px 36px;
  max-width: 540px;
  width: 90%;
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: fadeIn 0.4s ease;
}

.disclaimer-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-dim);
}

.disclaimer-body {
  font-size: 13px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-dim);
}
.disclaimer-body strong { color: var(--text); font-weight: 400; }

.disclaimer-checks {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.disclaimer-checks label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12px;
  color: var(--text-dim);
  font-weight: 300;
  cursor: pointer;
  line-height: 1.5;
}
.disclaimer-checks input[type="checkbox"] {
  margin-top: 2px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

#disclaimerAccept {
  background: var(--accent);
  color: #0a0b0d;
  border: none;
  border-radius: 4px;
  padding: 10px 20px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  align-self: flex-end;
  transition: background 0.2s, opacity 0.2s;
  opacity: 0.4;
}
#disclaimerAccept:not(:disabled) { opacity: 1; }
#disclaimerAccept:not(:disabled):hover { background: #d4b05f; }

/* ═══════════════════════════════════════════════════════
   APP
═══════════════════════════════════════════════════════ */
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  opacity: 0;
  pointer-events: none;
}
#app.visible { opacity: 1; pointer-events: auto; }

/* ── Header ── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 52px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  flex-shrink: 0;
  gap: 16px;
}

.header-left {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-shrink: 0;
}

.header-title {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--text);
}

.header-sub {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 300;
}

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

.nav-tab {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: none;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 4px 14px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.nav-tab:hover { color: var(--text); border-color: var(--border); }
.nav-tab.active { color: var(--accent); border-color: var(--accent-dim); }

.header-stats {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
}

.header-stat {
  color: var(--text-dim);
  cursor: default;
}

.header-stat-sep { color: var(--border); }

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  transition: background 0.3s, box-shadow 0.3s;
  flex-shrink: 0;
}
.status-dot.thinking {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 1s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.chunk-count {
  font-family: var(--mono);
  color: var(--accent-dim);
  font-size: 10px;
}

#logoutBtn {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 9px;
  cursor: pointer;
  letter-spacing: 0.08em;
  transition: color 0.2s, border-color 0.2s;
}
#logoutBtn:hover { color: var(--red); border-color: var(--red); }

/* ── Main layout — 2 columns ── */
#agentApp {
  display: grid;
  grid-template-columns: 260px 1px 1fr;
  height: calc(100vh - 52px);
  overflow: hidden;
}

.divider { background: var(--border); }

/* ═══════════════════════════════════════════════════════
   LEFT PANEL
═══════════════════════════════════════════════════════ */
.left-panel {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  background: var(--surface);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.left-section {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}

.left-section-title {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

/* ── Toggle switches ── */
.toggle-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.toggle-icon { font-size: 12px; }

.toggle-text {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
  flex: 1;
  letter-spacing: 0.04em;
}

.toggle-switch {
  position: relative;
  width: 28px;
  height: 16px;
  flex-shrink: 0;
}

.toggle-switch input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 8px;
  transition: background 0.2s;
  cursor: pointer;
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 10px;
  height: 10px;
  left: 3px;
  top: 3px;
  background: var(--text-muted);
  border-radius: 50%;
  transition: transform 0.2s, background 0.2s;
}
.toggle-switch input:checked + .toggle-slider { background: var(--accent-dim); }
.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(12px);
  background: var(--accent);
}

/* ── Accordion ── */
.accordion-group {
  margin-bottom: 6px;
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  padding: 5px 0;
  user-select: none;
}

.accordion-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-bottom: 3px;
  border-bottom: 1px solid;
}

.accordion-label.luxembourg  { color: #7ab3e8; border-color: #2a4a7a; }
.accordion-label.european-union { color: #a78bda; border-color: rgba(167,139,218,0.3); }
.accordion-label.france      { color: #d08ab0; border-color: #5a2a44; }
.accordion-label.ireland     { color: #6ecfa0; border-color: rgba(76,175,125,0.25); }
.accordion-label.other       { color: var(--text-muted); border-color: var(--border); }

.accordion-arrow {
  font-size: 8px;
  color: var(--text-muted);
  transition: transform 0.2s;
}
.accordion-arrow.open { transform: rotate(90deg); }

.accordion-body {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 6px 0 2px 0;
}
.accordion-body.open { display: flex; }

/* ── Doc chips in accordion ── */
.doc-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 3px 0;
}

.doc-chip-check {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  border: 1px solid var(--border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  transition: background 0.2s, border-color 0.2s;
}
.doc-chip.active .doc-chip-check {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.doc-chip.active .doc-chip-check::after { content: '✓'; }

.doc-chip-label {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--text-dim);
  line-height: 1.3;
  transition: color 0.2s;
}
.doc-chip.active .doc-chip-label { color: var(--text); }

/* ── Sources ── */
.sources-list {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.source-item {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
  line-height: 1.4;
  padding: 4px 8px;
  border-left: 2px solid var(--border);
  border-radius: 0 3px 3px 0;
  background: rgba(255,255,255,0.02);
  word-break: break-word;
}

.sources-empty {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  font-style: italic;
}

/* ═══════════════════════════════════════════════════════
   CHAT PANEL
═══════════════════════════════════════════════════════ */
.chat-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.message {
  display: flex;
  flex-direction: column;
  gap: 6px;
  animation: fadeIn 0.25s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.message-role {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-family: var(--mono);
}
.message.user .message-role { color: var(--accent-dim); }
.message.assistant .message-role { color: var(--blue); }

.message-content {
  line-height: 1.7;
  color: var(--text);
  font-weight: 300;
}
.message.user .message-content { color: var(--text-dim); font-style: italic; }
.message-content p { margin-bottom: 8px; }
.message-content p:last-child { margin-bottom: 0; }

/* Markdown content */
.message-content ul,
.message-content ol { padding-left: 20px; margin-bottom: 8px; }
.message-content li { margin-bottom: 4px; line-height: 1.6; }
.message-content ul ul,
.message-content ol ol { margin-top: 4px; margin-bottom: 4px; }
.message-content h1,
.message-content h2,
.message-content h3 { margin-top: 12px; margin-bottom: 6px; font-weight: 500; color: var(--text); }
.message-content h1 { font-size: 15px; }
.message-content h2 { font-size: 14px; }
.message-content h3 { font-size: 13px; }
.message-content table { border-collapse: collapse; width: 100%; margin-bottom: 10px; font-size: 12px; }
.message-content th,
.message-content td { border: 1px solid var(--border); padding: 6px 10px; text-align: left; }
.message-content th { background: var(--surface); color: var(--accent-dim); font-family: var(--mono); font-size: 11px; letter-spacing: 0.05em; }
.message-content strong { color: var(--text); font-weight: 500; }

/* Typing indicator */
.typing-indicator { display: flex; gap: 5px; align-items: center; padding: 4px 0; }
.typing-indicator span {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent);
  animation: bounce 1.2s ease-in-out infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes bounce {
  0%, 80%, 100% { transform: translateY(0); opacity: 0.4; }
  40% { transform: translateY(-5px); opacity: 1; }
}

/* Feedback */
.message-feedback {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
  opacity: 0;
  transition: opacity 0.3s;
}
.message:hover .message-feedback,
.message-feedback.voted,
.message-feedback.selecting { opacity: 1; }

.feedback-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-muted);
  font-size: 12px;
  padding: 2px 7px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
  line-height: 1.4;
}
.feedback-btn:hover { border-color: var(--accent-dim); color: var(--accent); }
.feedback-btn.active-up   { border-color: var(--green); color: var(--green); background: rgba(76,175,125,0.08); }
.feedback-btn.active-down { border-color: var(--red);   color: var(--red);   background: rgba(224,92,92,0.08); }

.feedback-comment {
  flex: 1;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 4px;
  outline: none;
  transition: border-color 0.2s;
}
.feedback-comment:focus { border-bottom-color: var(--accent-dim); }
.feedback-comment::placeholder { color: var(--text-muted); }

/* ── Input area ── */
.input-area {
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.input-row { display: flex; gap: 10px; align-items: flex-end; }

textarea {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 300;
  padding: 10px 14px;
  resize: none;
  min-height: 42px;
  max-height: 120px;
  line-height: 1.5;
  transition: border-color 0.2s;
  outline: none;
}
textarea:focus { border-color: var(--accent-dim); }
textarea::placeholder { color: var(--text-muted); }

button#send {
  background: var(--accent);
  color: #0a0b0d;
  border: none;
  border-radius: 6px;
  padding: 10px 18px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 0.05em;
  height: 42px;
  transition: background 0.2s, opacity 0.2s;
  white-space: nowrap;
}
button#send:hover { background: #d4b05f; }
button#send:disabled { opacity: 0.4; cursor: not-allowed; }

.input-hint {
  margin-top: 6px;
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--mono);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.conv-clear {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 3px;
  transition: color 0.2s;
}
.conv-clear:hover { color: var(--accent); }

/* Reader context banner */
.reader-context-banner {
  margin: 0 24px 0 24px;
  padding: 10px 14px;
  background: rgba(201,168,76,0.06);
  border: 1px solid var(--accent-dim);
  border-radius: 6px 6px 0 0;
  border-bottom: none;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.reader-context-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-dim);
  white-space: nowrap;
  padding-top: 2px;
}

.reader-context-text {
  font-family: var(--sans);
  font-size: 11px;
  color: var(--text-dim);
  line-height: 1.5;
  flex: 1;
  max-height: 80px;
  overflow-y: auto;
  font-style: italic;
}

.reader-context-clear {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0 4px;
  transition: color 0.2s;
  flex-shrink: 0;
}
.reader-context-clear:hover { color: var(--red); }

/* ═══════════════════════════════════════════════════════
   READER
═══════════════════════════════════════════════════════ */
#readerApp {
  overflow: hidden;
}

.reader-layout {
  display: grid;
  grid-template-columns: 220px 1px 1fr 1px 1fr;
  height: 100%;
  overflow: hidden;
}

.reader-left-panel {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  overflow: hidden;
  border-right: none;
}

.reader-left-panel .left-section-title {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  flex-shrink: 0;
}

.reader-center-divider { background: var(--border); }

.reader-slot {
  display: flex;
  overflow: hidden;
  position: relative;
}

.reader-slot-empty {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  border: 1px dashed var(--border);
  margin: 24px;
  border-radius: 6px;
}

.reader-slot-content {
  width: 100%;
  overflow: hidden;
}

.reader-divider { background: var(--border); }

.reader-text {
  overflow-y: hidden;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.reader-doc-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.reader-doc-header-title {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

.reader-doc-header-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 2px;
}

.reader-close-btn {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 3px 9px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.reader-close-btn:hover { color: var(--red); border-color: var(--red); }

.reader-toc {
  overflow-y: auto;
  padding: 16px 12px;
  background: var(--surface);
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
  min-width: 200px;
  max-width: 220px;
}

.reader-doc-body {
  overflow-y: auto;
  flex: 1;
  padding: 24px 28px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.toc-item {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 3px;
  cursor: pointer;
  line-height: 1.4;
  transition: color 0.2s, background 0.2s;
  margin-bottom: 2px;
}
.toc-item:hover { color: var(--text); background: rgba(255,255,255,0.03); }
.toc-item.active { color: var(--accent); }
.toc-item.level-part { font-weight: 500; color: var(--text-dim); margin-top: 8px; }
.toc-item.level-chapter { padding-left: 12px; }
.toc-item.level-sub { padding-left: 20px; }
.toc-item.level-section { padding-left: 28px; }

.reader-picker {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
  cursor: grab;
}

.reader-picker-title {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.reader-picker-list { display: flex; gap: 8px; flex-wrap: wrap; }

.reader-doc-chip {
  font-family: var(--mono);
  font-size: 10px;
  padding: 4px 10px;
  border-radius: 20px;
  cursor: grab;
  transition: opacity 0.2s, transform 0.2s;
  user-select: none;
  white-space: nowrap;
}
.reader-doc-chip:hover { transform: translateY(-1px); opacity: 0.85; }
.reader-doc-chip.dragging { opacity: 0.5; cursor: grabbing; }

.reader-chunk {
  cursor: pointer;
  border-radius: 4px;
  padding: 8px;
  margin: -8px;
  transition: background 0.2s;
}
.reader-chunk:hover { background: rgba(255,255,255,0.02); }
.reader-chunk.selected {
  background: rgba(201,168,76,0.06);
  border-left: 2px solid var(--accent-dim);
  padding-left: 12px;
}

.ask-agent-btn {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--accent);
  background: rgba(201,168,76,0.08);
  border: 1px solid var(--accent-dim);
  border-radius: 3px;
  padding: 3px 10px;
  cursor: pointer;
  transition: background 0.2s;
}
.ask-agent-btn:hover { background: rgba(201,168,76,0.15); }

.reader-doc-body ul,
.reader-doc-body ol { padding-left: 24px; margin-bottom: 8px; }
.reader-doc-body li { margin-bottom: 4px; line-height: 1.7; }
.reader-doc-body h3,
.reader-doc-body h4,
.reader-doc-body h5 { font-family: var(--sans); font-weight: 500; color: var(--text); margin-top: 16px; margin-bottom: 8px; }
.reader-doc-body h3 { font-size: 13px; color: var(--accent-dim); }
.reader-doc-body h4 { font-size: 12px; }
.reader-doc-body h5 { font-size: 11px; }
.reader-doc-body p { margin-bottom: 8px; line-height: 1.7; }
.reader-doc-body strong { color: var(--text); font-weight: 500; }

.reader-hierarchy {
  font-family: var(--sans);
  font-weight: 500;
  margin-top: 24px;
  margin-bottom: 12px;
  padding-bottom: 6px;
  line-height: 1.4;
}
.reader-hierarchy.part {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 1px solid var(--border);
  margin-top: 32px;
}
.reader-hierarchy.chapter { font-size: 13px; color: var(--text); border-bottom: 1px solid rgba(255,255,255,0.06); }
.reader-hierarchy.sub-chapter { font-size: 12px; color: var(--text-dim); }
.reader-hierarchy.section { font-size: 11px; color: var(--accent-dim); font-style: italic; }

.reader-search-input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 11px;
  padding: 4px 10px;
  outline: none;
  width: 180px;
  transition: border-color 0.2s;
}
.reader-search-input:focus { border-color: var(--accent-dim); }
.reader-search-input::placeholder { color: var(--text-muted); }

mark.search-hit {
  background: rgba(201,168,76,0.35);
  color: var(--text);
  border-radius: 2px;
  padding: 0 1px;
}

/* reader-slot-content grid */
.reader-slot-content {
  display: grid;
  grid-template-columns: 200px 1px 1fr;
}