:root {
  --bg: #f4f1ea;
  --bg-card: #fbf9f4;
  --ink: #1a1a1a;
  --ink-soft: #4a4a4a;
  --ink-faint: #8a8a85;
  --rule: #1a1a1a;
  --rule-soft: #d8d3c7;
  --accent: #cc3300;
  --verified: #2d6a4f;
  --shaky: #b8860b;
  --wrong: #c1272d;
  --sponsor: #a89f8c;
}

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

body {
  font-family: 'Inter Tight', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Noto Color Emoji';
  background: var(--bg);
  color: var(--ink);
  line-height: 1.55;
  font-size: 17px;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: radial-gradient(circle at 20% 30%, rgba(0,0,0,0.015) 1px, transparent 1px),
                    radial-gradient(circle at 80% 70%, rgba(0,0,0,0.015) 1px, transparent 1px);
  background-size: 3px 3px, 5px 5px;
  pointer-events: none; z-index: 0;
}

/* ============ TOP NAV ============ */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
  padding: 14px 40px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-family: 'Fraunces', serif;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.02em;
  display: flex; align-items: center; gap: 10px;
}
.brand::before {
  content: '';
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 50%;
}
.brand-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faint);
  margin-left: 4px;
}
.nav-crumbs {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
}
.nav-crumbs span { color: var(--ink-faint); }
.nav-crumbs a { color: var(--ink-soft); text-decoration: none; }
.nav-crumbs a:hover { color: var(--accent); }

.nav-settings {
  font-size: 17px;
  color: var(--ink-faint);
  text-decoration: none;
  line-height: 1;
  padding: 4px 6px;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
}
.nav-settings:hover,
.nav-settings.active { color: var(--accent); }

/* ============ ARTICLE ============ */
.article {
  max-width: 820px;
  margin: 0 auto;
  padding: 56px 40px 200px;
  position: relative; z-index: 1;
}

.channel-line {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin-bottom: 18px;
  display: flex; align-items: center; gap: 14px;
}
.channel-dot {
  width: 6px; height: 6px; background: var(--accent); border-radius: 50%;
}

h1 {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 58px;
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin-bottom: 22px;
  font-variation-settings: "opsz" 144;
}
h1 em {
  font-style: italic;
  font-variation-settings: "opsz" 144;
  font-weight: 500;
}

.positioning {
  font-family: 'Fraunces', serif;
  font-style: italic;
  font-weight: 400;
  font-size: 22px;
  line-height: 1.45;
  color: var(--ink-soft);
  margin-bottom: 36px;
  max-width: 640px;
}

/* ============ TRUST READOUT ============ */
.readout {
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  padding: 22px 0;
  margin-bottom: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.readout-cell {
  display: flex; flex-direction: column; gap: 6px;
}
.readout-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faint);
}
.readout-value {
  font-family: 'Fraunces', serif;
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.readout-value .strike {
  text-decoration: line-through;
  text-decoration-thickness: 1px;
  color: var(--ink-faint);
  font-size: 18px;
  margin-right: 6px;
}
.readout-value .badges {
  font-size: 16px; display: inline-flex; gap: 8px; margin-left: 4px;
}
.bdg-v { color: var(--verified); font-weight: 600; }
.bdg-s { color: var(--shaky); font-weight: 600; }
.bdg-w { color: var(--wrong); font-weight: 600; }
.bdg-p { color: var(--ink-faint); font-weight: 600; }

.factcheck-btn {
  display: inline-block;
  margin-top: 6px;
  padding: 4px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--accent);
  border-radius: 3px;
  cursor: pointer;
  letter-spacing: 0.03em;
  transition: background 0.15s, color 0.15s;
}
.factcheck-btn:hover:not(:disabled) { background: var(--accent); color: white; }
.factcheck-btn:disabled { opacity: 0.5; cursor: default; }
.factcheck-error { color: #c1272d; font-size: 0.78rem; margin-top: 4px; max-width: 280px; }

/* ============ ACT ============ */
.act {
  margin-bottom: 64px;
}
.act-head {
  display: flex; align-items: baseline; gap: 18px;
  margin-bottom: 32px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--rule);
}
.act-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.12em;
}
.act-title {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 28px;
  letter-spacing: -0.015em;
  flex: 1;
}
.act-time {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
}

/* ============ TOPIC CARD ============ */
.topic {
  margin-bottom: 38px;
  padding-left: 28px;
  position: relative;
}
.topic-badge {
  position: absolute;
  left: 0; top: 4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px;
  font-weight: 700;
}
.topic-badge.verified { background: var(--verified); color: white; }
.topic-badge.shaky { background: var(--shaky); color: white; }
.topic-badge.wrong { background: var(--wrong); color: white; }
.topic-badge.pending { background: var(--ink-faint); color: white; }

.topic-head {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 14px;
}
.topic-title {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 22px;
  letter-spacing: -0.01em;
}
.topic-time {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  white-space: nowrap;
  margin-left: 16px;
}

/* ============ CLAIM LINES ============ */
.claims {
  list-style: none;
}
.claim {
  padding: 11px 0;
  border-bottom: 1px dotted var(--rule-soft);
  display: flex;
  gap: 14px;
  align-items: flex-start;
  cursor: pointer;
  transition: background 0.15s ease, padding 0.15s ease;
  position: relative;
}
.claim:hover {
  background: rgba(204, 51, 0, 0.04);
  padding-left: 10px;
  padding-right: 10px;
  margin-left: -10px;
  margin-right: -10px;
}
.claim:hover .claim-play {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.claim:hover .claim-time {
  color: var(--accent);
}
.claim-play {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  transition: all 0.2s ease;
  margin-top: 2px;
}
.claim-play svg {
  width: 9px; height: 9px;
  margin-left: 1px;
}
.claim-body {
  flex: 1;
}
.claim-text {
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--ink);
}
.claim.shaky .claim-text {
  font-style: italic;
  color: var(--ink-soft);
}
.claim.wrong .claim-text {
  text-decoration: line-through;
  text-decoration-color: var(--wrong);
  text-decoration-thickness: 1px;
  color: var(--ink-faint);
}
.claim-correction {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--wrong);
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.5;
}
.claim-correction::before {
  content: '→ ';
  font-weight: 700;
}
.claim-note {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--shaky);
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.5;
}
.claim-note::before {
  content: '⚠ ';
  font-weight: 700;
}
.claim-time {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--ink-faint);
  white-space: nowrap;
  padding-top: 8px;
  transition: color 0.15s ease;
}
.claim-flag {
  flex-shrink: 0;
  margin-top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 8px;
  font-weight: 700;
}
.claim-flag.verified { background: var(--verified); color: white; }
.claim-flag.shaky { background: var(--shaky); color: white; }
.claim-flag.wrong { background: var(--wrong); color: white; }
.claim-flag.pending { background: var(--ink-faint); color: white; }

/* ============ CLAIM EXPANSION ============ */
.claim-expansion {
  display: none;
  margin-top: 14px;
  padding: 18px 22px 20px;
  background: var(--bg-card);
  border-left: 2px solid var(--accent);
  font-family: 'Fraunces', serif;
  font-size: 16.5px;
  line-height: 1.65;
  color: var(--ink);
  position: relative;
  width: 100%;
}
.claim.open {
  background: rgba(204, 51, 0, 0.04) !important;
  padding-left: 10px !important;
  padding-right: 10px !important;
  margin-left: -10px;
  margin-right: -10px;
  flex-wrap: wrap;
}
.claim.open .claim-play {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}
.claim.open .claim-expansion {
  display: block;
  animation: expandIn 0.25s ease;
}
@keyframes expandIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.claim-expansion p {
  margin-bottom: 12px;
}
.claim-expansion p:last-of-type {
  margin-bottom: 16px;
}
.claim-expansion-factcheck {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dotted var(--rule-soft);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12.5px;
  line-height: 1.6;
  font-style: normal;
}
.claim-expansion-factcheck.shaky { color: var(--shaky); }
.claim-expansion-factcheck.wrong { color: var(--wrong); }
.claim-expansion-factcheck strong {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 10.5px;
  display: block;
  margin-bottom: 6px;
}
.claim-watch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: var(--ink);
  color: var(--bg);
  border: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.15s ease;
  margin-top: 4px;
}
.claim-watch:hover {
  background: var(--accent);
}
.claim-watch svg {
  width: 9px; height: 9px;
  margin-left: 1px;
}
.claim-watch-time {
  opacity: 0.7;
  font-size: 10px;
  margin-left: 4px;
  letter-spacing: 0.08em;
}
.claim-close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  color: var(--ink-faint);
  font-size: 20px;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
}
.claim-close:hover { color: var(--accent); }

/* ============ SPONSOR / CUT MARKERS ============ */
.cut {
  display: flex; align-items: center; gap: 18px;
  margin: 24px 0;
  color: var(--sponsor);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}
.cut::before, .cut::after {
  content: ''; flex: 1; height: 1px;
  background: repeating-linear-gradient(90deg, var(--sponsor) 0 4px, transparent 4px 8px);
}

/* ============ CHAT FOOTER ============ */
.chat-footer {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 40px 64px;
  border-top: 2px solid var(--rule);
  margin-top: 40px;
}
.chat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faint);
  margin-bottom: 14px;
}
.chat-input {
  width: 100%;
  padding: 18px 22px;
  border: 1px solid var(--rule);
  background: var(--bg-card);
  font-family: 'Fraunces', serif;
  font-size: 18px;
  font-style: italic;
  color: var(--ink);
  border-radius: 0;
  outline: none;
  transition: border-color 0.15s ease;
}
.chat-input:focus { border-color: var(--accent); }
.chat-input::placeholder { color: var(--ink-faint); }
.chat-input:disabled { opacity: 0.5; }

.chat-messages {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.chat-q {
  background: var(--rule);
  color: var(--bg);
  padding: 11px 18px;
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px;
  align-self: flex-end;
  max-width: 80%;
}

.chat-a {
  background: var(--bg-card);
  border: 1px solid var(--rule-soft);
  padding: 16px 20px;
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px;
  line-height: 1.65;
  align-self: flex-start;
  max-width: 90%;
  white-space: pre-wrap;
}

.chat-a.loading { color: var(--ink-faint); font-style: italic; }
.chat-a.error   { color: var(--wrong); }

/* ============ VIDEO PANEL ============ */
.video-panel {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 440px;
  background: #1a1a1a;
  border: 1px solid var(--ink);
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
  z-index: 100;
  transform: translateY(120%);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}
.video-panel.open {
  transform: translateY(0);
}
.video-panel-head {
  padding: 12px 16px;
  display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid #333;
  color: #f4f1ea;
}
.video-panel-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.video-panel-close {
  background: none; border: none; color: #f4f1ea;
  font-size: 18px; cursor: pointer; line-height: 1;
  padding: 0; width: 24px; height: 24px;
}
.video-frame {
  width: 100%; aspect-ratio: 16/9;
  background: #000;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
.video-frame::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #2a2a2a 0%, #0a0a0a 100%);
}
.video-frame-content {
  position: relative; z-index: 1;
  text-align: center;
  color: #888;
}
.video-frame-play {
  width: 56px; height: 56px;
  border: 2px solid #888;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 12px;
}
.video-frame-play svg { width: 20px; height: 20px; margin-left: 3px; }
.video-frame-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.video-meta {
  padding: 14px 16px;
  color: #d4cfc1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  line-height: 1.6;
}
.video-meta-claim {
  color: #fff;
  font-family: 'Fraunces', serif;
  font-size: 14px;
  font-style: italic;
  margin-bottom: 8px;
  font-weight: 400;
}
.video-meta-range {
  color: var(--accent);
}

/* ============ HINT ============ */
.hint {
  position: fixed;
  bottom: 24px;
  left: 24px;
  background: var(--ink);
  color: var(--bg);
  padding: 12px 18px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.05em;
  z-index: 90;
  max-width: 280px;
  line-height: 1.5;
  animation: hintIn 0.5s ease 1s both;
}
.hint strong { color: var(--accent); }
@keyframes hintIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.hint-close {
  position: absolute; top: 6px; right: 8px;
  background: none; border: none; color: var(--bg-card);
  font-size: 14px; cursor: pointer; line-height: 1;
}

/* ============ HOME SCREEN ============ */
.home-layout {
  display: flex;
  height: calc(100vh - 57px);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.home-sidebar {
  width: 220px;
  flex-shrink: 0;
  border-right: 1px solid var(--rule);
  overflow-y: auto;
  padding: 24px 0 40px;
}

.sidebar-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--ink-faint);
  padding: 0 20px 12px;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-right: 14px;
}
.sidebar-header .sidebar-label { padding-bottom: 12px; }

.sidebar-sync-btn {
  font-size: 14px;
  background: none;
  border: none;
  color: var(--ink-faint);
  cursor: pointer;
  padding: 2px 4px;
  line-height: 1;
  transition: color 0.15s;
  margin-bottom: 10px;
}
.sidebar-sync-btn:hover:not(:disabled) { color: var(--accent); }
.sidebar-sync-btn:disabled { opacity: 0.4; cursor: default; }
.sidebar-sync-btn.spinning { animation: spin 1.2s linear infinite; color: var(--accent); }
@keyframes spin { to { transform: rotate(360deg); } }

.sidebar-sync-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  padding: 0 20px 8px;
  line-height: 1.5;
  min-height: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-sync-status.running { color: var(--ink-faint); font-style: italic; }
.sidebar-sync-status.done    { color: var(--verified); }
.sidebar-sync-status.error   { color: var(--wrong); }

.sidebar-ch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 20px;
  cursor: pointer;
  border-left: 2px solid transparent;
  gap: 8px;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.sidebar-ch:hover { background: rgba(204, 51, 0, 0.05); }
.sidebar-ch.active {
  border-left-color: var(--accent);
  background: rgba(204, 51, 0, 0.06);
}

.sidebar-ch-name {
  font-family: 'Inter Tight', sans-serif;
  font-size: 13.5px;
  color: var(--ink-soft);
  line-height: 1.3;
  flex: 1;
}
.sidebar-ch.active .sidebar-ch-name { color: var(--ink); font-weight: 600; }

.sidebar-ch-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-faint);
  flex-shrink: 0;
}

.sidebar-ch-del {
  display: none;
  align-items: center;
  justify-content: center;
  width: 20px; height: 20px;
  flex-shrink: 0;
  background: none;
  border: none;
  color: var(--ink-faint);
  font-size: 17px;
  line-height: 1;
  cursor: pointer;
  border-radius: 2px;
  transition: color 0.12s ease, background 0.12s ease;
  padding: 0;
}
.sidebar-ch:hover .sidebar-ch-del { display: flex; }
.sidebar-ch-del:hover { color: var(--wrong); background: rgba(193,39,45,0.1); }

.home-main {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.home-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 28px;
  border-bottom: 1px solid var(--rule-soft);
  flex-shrink: 0;
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 10;
}

.home-search {
  flex: 1;
  padding: 9px 14px;
  border: 1px solid var(--rule-soft);
  background: var(--bg-card);
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px;
  color: var(--ink);
  outline: none;
  border-radius: 0;
  transition: border-color 0.15s ease;
}
.home-search:focus { border-color: var(--accent); }
.home-search::placeholder { color: var(--ink-faint); }

.sort-tabs {
  display: flex;
  border: 1px solid var(--rule-soft);
  flex-shrink: 0;
}

.sort-tab {
  padding: 8px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: transparent;
  border: none;
  color: var(--ink-faint);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s ease, color 0.12s ease;
}
.sort-tab + .sort-tab { border-left: 1px solid var(--rule-soft); }
.sort-tab:hover { background: rgba(204, 51, 0, 0.05); color: var(--ink-soft); }
.sort-tab.active { background: var(--ink); color: var(--bg); }
.sort-tab-filter { border-left: 2px solid var(--rule-soft) !important; color: var(--ink-faint); }
.sort-tab-filter.active { background: var(--verified); color: white; }

.home-list { flex: 1; padding: 4px 0; }

.home-loading, .home-empty {
  padding: 48px 28px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}

.vrow {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 28px;
  border-bottom: 1px solid var(--rule-soft);
  transition: background 0.1s ease;
  min-width: 0;
}
.vrow:hover { background: var(--bg-card); }

.vrow-channel {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  width: 130px;
  flex-shrink: 0;
  line-height: 1.4;
}

.vrow-body {
  flex: 1;
  min-width: 0;
}

.vrow-title {
  font-family: 'Fraunces', serif;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.vrow-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin-top: 3px;
}

.vrow-read {
  flex-shrink: 0;
  padding: 5px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--accent);
  color: white;
  text-decoration: none;
  transition: opacity 0.15s ease;
}
.vrow-read:hover { opacity: 0.82; }

.vrow-unread {
  flex-shrink: 0;
  padding: 5px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  border: 1px solid var(--rule-soft);
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
}
.vrow-unread:hover { color: var(--ink-soft); border-color: var(--ink-soft); }

.home-pagination {
  padding: 16px 28px;
  border-top: 1px solid var(--rule-soft);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  background: var(--bg);
}

.pag-btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 6px 12px;
  background: transparent;
  border: 1px solid var(--rule-soft);
  color: var(--ink-soft);
  cursor: pointer;
  transition: border-color 0.12s ease, color 0.12s ease;
}
.pag-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.pag-btn:disabled { opacity: 0.35; cursor: default; }

.pag-info {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}

/* ============ DELETE MODAL ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal {
  background: var(--bg-card);
  border: 1px solid var(--rule);
  padding: 32px 36px 28px;
  max-width: 420px;
  width: calc(100% - 48px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}

.modal-title {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 26px;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}

.modal-channel {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-faint);
  margin-bottom: 20px;
}

.modal-body {
  font-family: 'Inter Tight', sans-serif;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--ink-soft);
  margin-bottom: 28px;
}
.modal-body strong { color: var(--wrong); font-weight: 600; }

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.modal-cancel-btn {
  padding: 8px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: transparent;
  border: 1px solid var(--rule-soft);
  color: var(--ink-soft);
  cursor: pointer;
  transition: border-color 0.12s ease;
}
.modal-cancel-btn:hover:not(:disabled) { border-color: var(--ink); }
.modal-cancel-btn:disabled { opacity: 0.4; cursor: default; }

.modal-del-btn {
  padding: 8px 18px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--wrong);
  border: 1px solid var(--wrong);
  color: white;
  cursor: pointer;
  transition: opacity 0.12s ease;
}
.modal-del-btn:hover:not(:disabled) { opacity: 0.82; }
.modal-del-btn:disabled { opacity: 0.45; cursor: default; }

/* ============ QUIZ SECTION ============ */
.quiz-section {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 40px 80px;
  border-top: 2px solid var(--rule);
}

.quiz-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faint);
  margin-bottom: 20px;
}

.quiz-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.quiz-start-btn {
  align-self: flex-start;
  padding: 12px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--accent);
  color: white;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease;
}
.quiz-start-btn:hover { opacity: 0.82; }

.quiz-loading {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
  font-style: italic;
}

.quiz-error {
  font-family: 'Inter Tight', sans-serif;
  font-size: 14px;
  color: var(--wrong);
  padding: 12px 16px;
  border: 1px solid var(--wrong);
  background: rgba(193, 39, 45, 0.06);
}

.quiz-progress {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faint);
}

.quiz-topic-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.quiz-question-text {
  font-family: 'Fraunces', serif;
  font-size: 22px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.quiz-answer {
  width: 100%;
  padding: 16px 20px;
  border: 1px solid var(--rule);
  background: var(--bg-card);
  font-family: 'Inter Tight', sans-serif;
  font-size: 16px;
  color: var(--ink);
  line-height: 1.6;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s ease;
  border-radius: 0;
}
.quiz-answer:focus { border-color: var(--accent); }
.quiz-answer::placeholder { color: var(--ink-faint); }
.quiz-answer:disabled { opacity: 0.6; }

.quiz-submit-btn {
  align-self: flex-start;
  padding: 12px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--ink);
  color: var(--bg);
  border: none;
  cursor: pointer;
  transition: background 0.15s ease;
}
.quiz-submit-btn:hover:not(:disabled) { background: var(--accent); }
.quiz-submit-btn:disabled { opacity: 0.5; cursor: default; }

.quiz-verdict {
  padding: 18px 22px;
  border-left: 3px solid;
  background: var(--bg-card);
}
.quiz-verdict.correct  { border-color: var(--verified); }
.quiz-verdict.partial  { border-color: var(--shaky); }
.quiz-verdict.incorrect { border-color: var(--wrong); }

.quiz-verdict-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 700;
  margin-bottom: 8px;
}
.correct  .quiz-verdict-label { color: var(--verified); }
.partial  .quiz-verdict-label { color: var(--shaky); }
.incorrect .quiz-verdict-label { color: var(--wrong); }

.quiz-verdict-explanation {
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-soft);
  white-space: pre-wrap;
}

.quiz-next-btn {
  align-self: flex-start;
  padding: 12px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--ink);
  color: var(--bg);
  border: none;
  cursor: pointer;
  transition: background 0.15s ease;
}
.quiz-next-btn:hover { background: var(--accent); }

.quiz-score {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 64px;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
}

.quiz-score-pct {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--ink-faint);
  margin-bottom: 32px;
}

.quiz-result-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 10px 0;
  border-bottom: 1px dotted var(--rule-soft);
}

.quiz-result-icon {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: white;
  margin-top: 2px;
}
.quiz-result-icon.correct   { background: var(--verified); }
.quiz-result-icon.partial   { background: var(--shaky); }
.quiz-result-icon.incorrect { background: var(--wrong); }

.quiz-result-q {
  font-family: 'Inter Tight', sans-serif;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
}

.quiz-result-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
  flex-wrap: wrap;
}

.quiz-back-btn {
  padding: 12px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: transparent;
  color: var(--ink-soft);
  border: 1px solid var(--rule-soft);
  cursor: pointer;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.quiz-back-btn:hover { border-color: var(--ink); color: var(--ink); }

/* ============ SIDEBAR ADD CHANNEL ============ */
.home-sidebar {
  display: flex;
  flex-direction: column;
}

.sidebar-add {
  padding: 16px 20px 24px;
  border-top: 1px solid var(--rule-soft);
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-add-input {
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--rule-soft);
  background: var(--bg-card);
  font-family: 'Inter Tight', sans-serif;
  font-size: 13px;
  color: var(--ink);
  outline: none;
  transition: border-color 0.15s;
  border-radius: 0;
}
.sidebar-add-input:focus { border-color: var(--accent); }
.sidebar-add-input::placeholder { color: var(--ink-faint); }

.sidebar-add-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  color: var(--ink-faint);
  letter-spacing: 0.03em;
  line-height: 1.4;
}

.sidebar-add-btn {
  width: 100%;
  padding: 7px 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--accent);
  color: white;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s;
}
.sidebar-add-btn:hover:not(:disabled) { opacity: 0.82; }
.sidebar-add-btn:disabled { opacity: 0.45; cursor: default; }

.sidebar-add-progress {
  height: 2px;
  background: var(--rule-soft);
  overflow: hidden;
  display: none;
  margin: 0 -20px;
}
.sidebar-add-progress.running { display: block; }
.sidebar-add-progress.running::after {
  content: '';
  display: block;
  height: 100%;
  width: 35%;
  background: var(--accent);
  animation: addBar 1.8s ease-in-out infinite;
}
@keyframes addBar {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(360%); }
}

.sidebar-add-foot {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  min-height: 16px;
}

.sidebar-add-status {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: 0.03em;
}
.sidebar-add-status.running { color: var(--ink-faint); font-style: italic; }
.sidebar-add-status.done    { color: var(--verified); }
.sidebar-add-status.error   { color: var(--wrong); }

.sidebar-add-cancel {
  display: none;
  flex-shrink: 0;
  padding: 1px 7px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: transparent;
  border: 1px solid var(--rule-soft);
  color: var(--ink-faint);
  cursor: pointer;
  transition: border-color 0.12s, color 0.12s;
  line-height: 1.6;
}
.sidebar-add-cancel.visible { display: block; }
.sidebar-add-cancel:hover { border-color: var(--wrong); color: var(--wrong); }

.sidebar-add-warning {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9.5px;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--shaky);
  padding: 6px 8px;
  background: rgba(184, 134, 11, 0.07);
  border-left: 2px solid var(--shaky);
}

/* ============ ANALYZE BAR ============ */
.analyze-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 28px;
  background: rgba(45, 106, 79, 0.06);
  border-bottom: 1px solid rgba(45, 106, 79, 0.18);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.analyze-bar-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  flex: 1;
  min-width: 0;
}

.analyze-bar-step {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--ink-faint);
  font-style: italic;
  flex: 1;
}

.analyze-bar-done {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10.5px;
  color: var(--verified);
}

.analyze-bar-error {
  color: var(--wrong);
}

.analyze-bar-btn {
  padding: 5px 12px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: var(--verified);
  color: white;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity 0.15s;
  flex-shrink: 0;
}
.analyze-bar-btn:hover { opacity: 0.82; }

.analyze-bar-cancel {
  padding: 4px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: transparent;
  border: 1px solid var(--rule-soft);
  color: var(--ink-faint);
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.12s, color 0.12s;
}
.analyze-bar-cancel:hover { border-color: var(--wrong); color: var(--wrong); }

/* ============ SETTINGS PAGE ============ */
.settings-page {
  display: flex;
  justify-content: center;
  padding: 60px 40px 120px;
  position: relative;
  z-index: 1;
}

.settings-card {
  width: 100%;
  max-width: 520px;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  padding: 40px 44px 48px;
}

.settings-title {
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 38px;
  letter-spacing: -0.02em;
  margin-bottom: 40px;
}

.settings-section {
  margin-bottom: 36px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--rule-soft);
}
.settings-section:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.settings-section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-faint);
  margin-bottom: 10px;
}

.settings-desc {
  font-family: 'Inter Tight', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 16px;
}

.settings-tabs {
  margin-bottom: 12px;
}

.settings-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin-top: 8px;
}

.settings-run-btn {
  padding: 10px 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  background: var(--ink);
  color: var(--bg);
  border: none;
  cursor: pointer;
  transition: background 0.15s;
  margin-top: 4px;
}
.settings-run-btn:hover:not(:disabled) { background: var(--accent); }
.settings-run-btn:disabled { opacity: 0.5; cursor: default; }

.settings-run-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.04em;
  margin-top: 10px;
}
.settings-run-status.running { color: var(--ink-faint); font-style: italic; }
.settings-run-status.error   { color: var(--wrong); }

/* page load animation */
.article > * {
  animation: fadeUp 0.6s ease both;
}
.article > *:nth-child(1) { animation-delay: 0.05s; }
.article > *:nth-child(2) { animation-delay: 0.1s; }
.article > *:nth-child(3) { animation-delay: 0.15s; }
.article > *:nth-child(4) { animation-delay: 0.2s; }
.article > *:nth-child(5) { animation-delay: 0.25s; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── On-demand build (Stage 4) ───────────────────────────────────────────── */
.ondemand-loading {
  padding: 64px 24px;
  text-align: center;
  color: var(--ink-faint);
  font-style: italic;
  max-width: 640px;
  margin: 32px auto;
}
.ondemand-loading p { margin: 0.5em 0; }
.ondemand-bar {
  height: 8px;
  background: var(--rule-soft);
  border-radius: 4px;
  overflow: hidden;
  margin: 20px auto 8px;
  max-width: 480px;
}
.ondemand-bar-fill {
  height: 100%;
  background: var(--accent);
  transition: width 0.4s ease;
  width: 0%;
}
.ondemand-elapsed { font-size: 12px; color: var(--ink-faint); }

.ondemand-error {
  padding: 32px;
  border-left: 4px solid var(--wrong);
  background: var(--bg-card);
  max-width: 640px;
  margin: 48px auto;
}
.ondemand-error h2 { margin-top: 0; color: var(--wrong); }
.ondemand-error .error-msg {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--wrong);
  background: var(--bg);
  padding: 8px 12px;
  border-radius: 4px;
  word-break: break-word;
}
.ondemand-error button {
  margin-top: 12px;
  padding: 8px 16px;
  border: 1px solid var(--rule);
  background: var(--bg);
  cursor: pointer;
}
.ondemand-error button:hover { background: var(--rule-soft); }
.ondemand-error code {
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 13px;
}

/* ── Mega Mentor (Stage 5.5) ────────────────────────────────────────────── */
.mentor-page {
  max-width: 760px;
  margin: 32px auto;
  padding: 0 24px 64px;
}
.mentor-page h1 { margin: 0 0 8px; }
.mentor-hint {
  color: var(--ink-faint);
  font-style: italic;
  font-size: 14px;
  margin: 0 0 16px;
}
.mentor-hint code {
  font-style: normal;
  background: var(--bg);
  padding: 1px 5px;
  border-radius: 3px;
}
.mentor-input {
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  font-size: 15px;
  font-family: inherit;
  resize: vertical;
  background: var(--bg-card);
  color: var(--ink);
}
.mentor-input:focus {
  outline: none;
  border-color: var(--accent);
}
.mentor-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 8px;
}
.mentor-shortcut { margin: 0; }

.mentor-loading {
  padding: 48px 24px;
  text-align: center;
  color: var(--ink-faint);
  font-style: italic;
}

.mentor-answer {
  background: var(--bg-card);
  padding: 20px 24px;
  border-radius: 6px;
  margin-top: 20px;
  line-height: 1.7;
  white-space: pre-wrap;
  font-size: 15px;
}
.mentor-source-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  padding: 0 2px;
}
.mentor-source-link:hover { text-decoration: underline; }

.mentor-verify-btn { margin-top: 12px; }
.mentor-verified {
  color: var(--verified);
  font-weight: 600;
  font-size: 14px;
  margin-top: 12px;
}

.mentor-sources-list {
  margin-top: 20px;
  font-size: 13px;
  border-top: 1px solid var(--rule-soft);
  padding-top: 16px;
}
.mentor-sources-label {
  font-weight: 600;
  color: var(--ink-soft);
  margin-bottom: 8px;
}
.mentor-source-line { padding: 4px 0; color: var(--ink-soft); }
.mentor-source-line a {
  color: var(--ink-soft);
  text-decoration: none;
}
.mentor-source-line a:hover {
  color: var(--accent);
  text-decoration: underline;
}
.mentor-timestamp { color: var(--ink-faint); font-size: 12px; }

.mentor-cost {
  font-size: 12px;
  color: var(--ink-faint);
  margin-top: 16px;
  text-align: right;
}

/* ── Cost dashboard + settings inputs (Stage 6) ─────────────────────────── */
.cost-dashboard { font-size: 14px; }
.cost-header {
  font-weight: 600;
  color: var(--ink);
  margin: 16px 0 4px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.cost-header .value {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
.cost-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 16px;
  margin: 4px 0 12px;
}
.cost-grid .label { color: var(--ink-faint); }
.cost-grid .value {
  font-variant-numeric: tabular-nums;
  text-align: right;
  font-weight: 600;
}
.cost-grid .label.component {
  padding-left: 12px;
  font-size: 13px;
}
.cost-sparkline {
  display: flex;
  gap: 3px;
  align-items: flex-end;
  height: 40px;
  margin-top: 16px;
  padding: 0 4px;
}
.cost-sparkline-bar {
  flex: 1;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
  min-height: 2px;
  transition: opacity 0.15s;
}
.cost-sparkline-bar.zero { background: var(--rule-soft); }
.cost-sparkline-bar:hover { opacity: 0.7; cursor: help; }

.limits-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  font-size: 14px;
}
.limits-row input[type=number] {
  width: 90px;
  padding: 6px 10px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  font-size: 14px;
  font-family: inherit;
  font-variant-numeric: tabular-nums;
}
.limits-row input[type=number]:focus {
  outline: none;
  border-color: var(--accent);
}
.engine-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 8px 0;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 4px;
}
.engine-row:hover { background: var(--bg); }
.engine-row input[type=radio] { margin-top: 4px; flex-shrink: 0; }
.engine-row span { font-size: 14px; line-height: 1.5; }

.engine-current {
  font-size: 12px;
  font-weight: 600;
  color: var(--verified);
  margin-left: 8px;
  text-transform: none;
}

/* ── Mobile (Stage 1.5) ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Nav: tighter padding, hide version tag, prevent crumb overflow */
  .nav { padding: 12px 16px; }
  .brand-tag { display: none; }
  .nav-crumbs {
    font-size: 10px;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  /* Home: stack sidebar above main, sidebar becomes a horizontal chip strip */
  .home-layout {
    flex-direction: column;
    height: auto;
    overflow: visible;
  }
  .home-sidebar {
    width: 100%;
    flex-direction: row;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 8px 12px;
    border-right: none;
    border-bottom: 1px solid var(--rule);
    gap: 8px;
    -webkit-overflow-scrolling: touch;
  }
  .home-sidebar > * { flex-shrink: 0; white-space: nowrap; }
  .sidebar-ch {
    padding: 6px 12px;
    border: 1px solid var(--rule-soft);
    border-radius: 16px;
    background: var(--bg-card);
  }
  .sidebar-ch.active {
    background: var(--ink);
    color: var(--bg);
    border-color: var(--ink);
  }

  /* Home: video list — single column, hide redundant channel column */
  .home-main { padding: 0; }
  .home-controls { padding: 12px 16px; flex-wrap: wrap; gap: 8px; }
  .vrow {
    padding: 12px 16px;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  .vrow-channel { display: none; }

  /* Video detail: tighter padding so text fills the screen */
  .article { padding: 24px 16px 120px; max-width: 100%; }

  /* Video popup: was fixed bottom-right with slide-up animation.
     On mobile: pin to top edge, full width, slide DOWN from above. */
  .video-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: auto;
    width: 100vw;
    max-width: 100vw;
    border-radius: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,.2);
    z-index: 100;
    transform: translateY(-100%);  /* hidden ABOVE the viewport */
  }
  .video-panel.open {
    transform: translateY(0);       /* slide down into view */
  }
  .video-frame { aspect-ratio: 16/9; width: 100%; height: auto; }

  /* Mega Mentor: tighter padding, prevent iOS Safari zoom-on-focus */
  .mentor-page { padding: 16px 16px 64px; margin: 16px auto; }
  .mentor-input { font-size: 16px; }
  .mentor-answer { padding: 16px; font-size: 14px; }

  /* Settings: tighter padding */
  .settings-page { padding: 24px 16px; }
  .settings-card { padding: 24px 20px; max-width: 100%; }

  /* Chat / Q&A: tighten bubble widths */
  .chat-q, .chat-a { max-width: 95%; padding: 10px 14px; }
  .chat-input { font-size: 16px; }  /* prevent iOS zoom */

  /* Larger touch targets — 44px minimum for buttons */
  button, .settings-run-btn { min-height: 44px; padding: 10px 16px; }
  .nav-settings { padding: 6px 10px; }

  /* Loading panels: full-width centering */
  .ondemand-loading, .ondemand-error { margin: 16px; padding: 24px 16px; max-width: 100%; }
}