/* arta-la-exp — Classical Latin. Accent = oxblood. */

:root {
  --bg: #0d0d0d;
  --surface: #141414;
  --text: #ffffff;
  --muted: #a0a0a0;
  --correct: #22c55e;
  --wrong: #ef4444;
  --accent: #9b2335;
  --accent-dim: rgba(155, 35, 53, 0.2);
  --accent-border: rgba(155, 35, 53, 0.5);
  --locked: #4a4a4a;
  --radius: 8px;
  --font: "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  padding: 0.75rem 1rem 2rem;
  line-height: 1.45;
}

.container {
  max-width: min(96vw, 42rem);
  margin: 0 auto;
}

.util-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.4rem 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--accent-border);
  font-size: 0.78rem;
  color: var(--muted);
}

.util-bar .brand,
.util-bar .brand-btn {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-family: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}
.util-bar .brand-btn:hover {
  text-decoration: underline;
}

.util-bar .sep {
  opacity: 0.4;
}

.util-btn {
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--accent-border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}
.util-bar #btn-go-home {
  margin-left: auto;
}
body.in-practice #btn-go-home {
  display: none;
}
.practice-exit {
  margin-top: 0.85rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--accent-border);
}
.practice-head-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.65rem;
  margin: 0.35rem 0 0.55rem;
  font-size: 0.92rem;
}
.practice-head-line .ph-la {
  font-weight: 700;
  color: var(--accent);
}
.practice-head-line .ph-en {
  color: var(--text);
  font-weight: 600;
}
.practice-head-line .ph-score {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.8rem;
  font-variant-numeric: tabular-nums;
}

.util-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.util-btn[aria-pressed="true"] {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

h1 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  letter-spacing: -0.02em;
}

.sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 1.25rem;
}

.sub strong {
  color: var(--text);
  font-weight: 600;
}

.card {
  background: var(--surface);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin-bottom: 1rem;
}

.card h2 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 0.65rem;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.rail-label,
.tree-legend {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.tree-legend {
  text-transform: none;
  letter-spacing: 0;
  font-size: 0.82rem;
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.level-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.level-btn {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.level-btn[aria-pressed="true"] {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
}

.level-btn.is-locked {
  opacity: 0.45;
  cursor: not-allowed;
  border-color: var(--locked);
}

/* Alex's birthday line under the title (only through his link). */
.home-dedication {
  margin: -0.4rem 0 0.9rem;
  font-style: italic;
  color: var(--accent);
}

/* A level with no live units yet: browsable (Themāta shows what is coming),
   but quieter than one you can practise. */
.level-btn.is-soon {
  opacity: 0.6;
  border-style: dashed;
}
.level-btn.is-soon[aria-pressed="true"] {
  opacity: 1;
}

.stub-teaches {
  margin: 0.4rem 0 0.2rem;
}
.stub-words {
  font-style: italic;
  color: var(--muted);
}

.level-btn .tag {
  display: block;
  font-size: 0.62rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  opacity: 0.85;
}

/* Path list */
.path-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.path-item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  width: 100%;
  text-align: left;
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.55rem 0.65rem;
  border-radius: 6px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  cursor: pointer;
}

.path-item:hover:not(:disabled) {
  border-color: var(--accent-border);
  background: var(--accent-dim);
}

.path-item[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.path-item:disabled {
  opacity: 0.55;
  cursor: default;
}

.path-item .n {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  min-width: 1.4rem;
  padding-top: 0.12rem;
}

.path-item .meta {
  flex: 1;
  min-width: 0;
}

.path-item .title {
  font-weight: 600;
}

.path-item .title-cz {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.82rem;
}

.path-item .note {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 0.15rem;
}

.path-item .status {
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
  padding-top: 0.15rem;
}

.path-item .status.is-fruit {
  color: var(--correct);
}

.path-item .status.is-live {
  color: var(--accent);
}

.path-item .status.is-planned {
  color: var(--locked);
}

/* Roots strip */
.roots-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.root-chip {
  flex: 1 1 5.5rem;
  min-width: 5rem;
  padding: 0.45rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background: rgba(0, 0, 0, 0.25);
  font-size: 0.75rem;
}

.root-chip .name {
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.root-chip .bar {
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.root-chip .bar > i {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 2px;
  transition: width 0.25s ease;
}

.root-chip .pct {
  font-size: 0.68rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

/* Node detail */
.node-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.btn {
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
  cursor: pointer;
}

.btn:hover {
  background: rgba(214, 86, 184, 0.3);
}

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

.btn-ghost {
  background: transparent;
  border-color: var(--accent-border);
  color: var(--muted);
}

.btn-ghost:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.pill {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--accent-border);
  color: var(--muted);
  margin-right: 0.35rem;
}

.pill.live {
  color: var(--accent);
  border-color: var(--accent);
}

.pill.fruit {
  color: var(--correct);
  border-color: var(--correct);
}

/* Practice */
/* Practice ladder — RUPL port (clickable steps + stage banner) */
.ladder-wrap {
  margin-bottom: 0.55rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--accent-border);
}

.ladder {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.2rem 0.15rem;
  margin-bottom: 0.4rem;
}

.ladder-step {
  font-family: inherit;
  font-size: 0.68rem;
  font-weight: 600;
  padding: 0.22rem 0.45rem;
  border-radius: 4px;
  border: 1px solid var(--accent-border);
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.ladder-step.is-current {
  color: #0d0d0d;
  border-color: var(--accent);
  background: var(--accent);
}

.ladder-step.is-done {
  color: var(--correct);
  border-color: rgba(34, 197, 94, 0.55);
  background: rgba(34, 197, 94, 0.1);
}

.ladder-arrow {
  color: var(--muted);
  opacity: 0.45;
  font-size: 0.7rem;
  padding: 0 0.1rem;
  user-select: none;
}

.stage-banner {
  padding: 0.35rem 0.55rem;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background: var(--accent-dim);
}

.stage-banner-title {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.01em;
}

.stage-banner-sub {
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 0.12rem;
  line-height: 1.3;
}

.unit-gloss {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.35rem;
}

.nav {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.85rem;
  flex-wrap: wrap;
}

.nav .btn {
  flex: 1;
  text-align: center;
  min-width: 6rem;
}

.btn.primary {
  background: var(--accent);
  color: #0d0d0d;
  border-color: var(--accent);
  font-weight: 600;
}

.btn.primary:hover {
  filter: brightness(1.08);
}

button.link,
a.link,
.link {
  font-family: inherit;
  font-size: 0.82rem;
  padding: 0.35rem 0;
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 3px;
}

button.link:hover {
  color: var(--accent);
}

.gap-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.4rem;
  margin: 0.85rem 0;
  font-size: 1.35rem;
  font-weight: 600;
}

.gap-stem {
  color: var(--muted);
  letter-spacing: 0.01em;
}

.gap-input {
  width: 5.5rem;
  min-width: 4rem;
  font-family: inherit;
  font-size: 1.2rem;
  font-weight: 700;
  text-align: center;
  padding: 0.4rem 0.45rem;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: #0a0a0a;
  color: var(--accent);
}

.gap-input:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.ladder-review-badge {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #7eb6e0;
  border: 1px solid rgba(86, 156, 214, 0.45);
  background: rgba(86, 156, 214, 0.12);
  padding: 0.22rem 0.45rem;
  border-radius: 4px;
  margin-right: 0.15rem;
}

.practice-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem 1rem;
  margin-bottom: 0.75rem;
}

.practice-head h2 {
  margin: 0;
  flex: 1;
}

.practice-prompt {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.practice-hint {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
}

.practice-hint .sound {
  color: var(--accent);
}

.intro-card {
  margin-bottom: 1rem;
}

.intro-card h3 {
  font-size: 1rem;
  margin: 0 0 0.4rem;
}

.intro-card p {
  margin: 0 0 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.intro-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin: 0.5rem 0;
}

.intro-table th,
.intro-table td {
  border: 1px solid var(--accent-border);
  padding: 0.35rem 0.45rem;
  text-align: left;
  vertical-align: top;
}

.intro-table th {
  color: var(--accent);
  font-weight: 600;
  background: rgba(214, 86, 184, 0.08);
}

.intro-ex {
  margin: 0.35rem 0;
  font-size: 0.9rem;
}

.intro-ex .cz {
  color: var(--accent);
  font-weight: 600;
}

.intro-ex .en {
  color: var(--muted);
}

/* Two-column match (rupl / rue style) */
.match {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 0.45rem;
  margin: 0.35rem 0 0.5rem;
}

.match-col {
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
}

button.m {
  font-family: inherit;
  font-size: 0.76rem;
  line-height: 1.2;
  padding: 0.28rem 0.4rem;
  border-radius: 5px;
  border: 1px solid var(--accent-border);
  background: #0a0a0a;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  width: 100%;
  min-height: 0;
}

button.m:hover:not(:disabled):not(.done) {
  border-color: var(--accent);
}

button.m.sel {
  background: var(--accent);
  color: #0d0d0d;
  border-color: var(--accent);
  font-weight: 600;
}

button.m.done {
  opacity: 1;
  border-color: var(--correct);
  background: rgba(34, 197, 94, 0.12);
  color: var(--correct);
  text-decoration: line-through;
  text-decoration-thickness: 1px;
  pointer-events: none;
  cursor: default;
  font-weight: 600;
  padding-top: 0.22rem;
  padding-bottom: 0.22rem;
}

button.m.wrong {
  border-color: var(--wrong);
  color: var(--wrong);
}

/* Two columns still fit a 390px phone (tiles wrap); stacking split each
   pair across a long scroll. Stack only on very narrow screens. */
@media (max-width: 340px) {
  .match {
    grid-template-columns: 1fr;
  }
}

.chip {
  font-family: inherit;
  font-size: 0.8rem;
  padding: 0.3rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--accent-border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.chip:hover {
  border-color: var(--accent);
}

.chip.is-selected {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}

.chip.is-correct {
  border-color: var(--correct);
  color: var(--correct);
}

.chip.is-wrong {
  border-color: var(--wrong);
  color: var(--wrong);
}

.choices {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin: 0.75rem 0;
}

.choice {
  font-family: inherit;
  text-align: left;
  font-size: 0.9rem;
  padding: 0.55rem 0.7rem;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}

.choice .knum {
  display: inline-block;
  min-width: 1.1rem;
  margin-right: 0.35rem;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--accent);
  opacity: 0.9;
}

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

.choice.is-correct {
  border-color: var(--correct);
  color: var(--correct);
  background: rgba(34, 197, 94, 0.1);
}

.choice.is-wrong {
  border-color: var(--wrong);
  color: var(--wrong);
  background: rgba(239, 68, 68, 0.08);
}

.input-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.input-row input {
  flex: 1 1 12rem;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.5rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background: #0a0a0a;
  color: var(--text);
}

.input-row input:focus {
  outline: none;
  border-color: var(--accent);
}

.feedback {
  font-size: 0.9rem;
  margin: 0.5rem 0 0.75rem;
  min-height: 1.3em;
}

.feedback.ok {
  color: var(--correct);
}

.feedback.bad {
  color: var(--wrong);
}

.score-line {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.foot {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 1.5rem;
}

/* ---- Minimalist home (rupl-exp model · Latin chrome) ---- */
.home-title {
  margin: 0 0 0.5rem;
  font-size: 1.45rem;
  font-weight: 650;
}
.home-intro {
  margin: 0 0 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
  max-width: 28rem;
  line-height: 1.4;
}
.home-intro strong {
  color: var(--text);
}
.home-minimal .level-rail {
  margin-bottom: 0.75rem;
}
.home-actions-card {
  margin-bottom: 0.85rem;
}
.home-next-line {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
}
.home-next-line .muted {
  color: var(--muted);
  font-weight: 400;
}
.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.home-btn {
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.45rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--accent-border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
}
.home-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}
.home-btn-primary,
.home-btn.is-active {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.home-hint {
  margin: 0.65rem 0 0;
  font-size: 0.82rem;
  color: var(--muted);
}
.home-panel-scroll {
  max-height: min(50vh, 22rem);
  overflow: auto;
  margin-top: 0.35rem;
}
.home-more-block {
  margin-top: 0.5rem;
}
.quiet-details > summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 600;
  font-size: 0.9rem;
}
.quiet-summary-meta {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.82rem;
}
.level-btn.is-current {
  border-color: var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
}
.level-meters {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.75rem 0;
}
.meter-block .meter-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
}
.meter-frac {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.meter-track {
  height: 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.meter-fill {
  height: 100%;
  border-radius: 999px;
  background: color-mix(in srgb, var(--correct, #22c55e) 82%, transparent);
  transition: width 0.4s ease;
}
.case-ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin: 0.5rem 0;
}
.case-ref-table th,
.case-ref-table td {
  border: 1px solid var(--accent-border);
  padding: 0.4rem 0.5rem;
  text-align: left;
}
.case-ref-table th {
  color: var(--accent);
  font-weight: 600;
}
.howto-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.howto-overlay[hidden] {
  display: none !important;
}
.howto-panel {
  background: var(--surface);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  max-width: 26rem;
  width: 100%;
  max-height: min(90vh, 32rem);
  overflow: auto;
}
.howto-panel h2 {
  margin: 0 0 0.35rem;
  color: var(--accent);
  font-size: 1.15rem;
}
.howto-lead {
  font-size: 0.82rem;
  color: var(--muted);
  margin: 0 0 0.5rem;
}
.howto-steps {
  margin: 0.75rem 0 0;
  padding-left: 1.2rem;
  font-size: 0.92rem;
  line-height: 1.4;
}
.howto-steps li {
  margin-bottom: 0.5rem;
}
.howto-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}
#review-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
#review-list .path-item {
  width: 100%;
}

/* ---- First-fruit payoff (tick + meter; from RUE/RUPL pattern) ---- */
.fruit-payoff {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.15rem;
  padding: 2.25rem 1rem 1.75rem;
  min-height: 14rem;
}
.fruit-payoff-tick {
  width: 56px;
  height: 56px;
}
.fruit-payoff-tick svg {
  display: block;
}
.fruit-payoff-tick circle {
  fill: none;
  stroke: var(--correct, #22c55e);
  stroke-width: 2;
  opacity: 0.35;
}
.fruit-payoff-tick path {
  fill: none;
  stroke: var(--correct, #22c55e);
  stroke-width: 2.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-dasharray: 40;
  stroke-dashoffset: 40;
  transition: stroke-dashoffset 0.5s ease 0.08s;
}
.fruit-payoff-tick.is-drawn path {
  stroke-dashoffset: 0;
}
.fruit-payoff-kind {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.fruit-payoff-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.55rem 0.75rem;
}
.fruit-payoff-level {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius, 8px);
  border: 1px solid var(--accent);
  background: var(--accent-dim);
  color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
  min-width: 3rem;
  text-align: center;
  line-height: 1.2;
}
.fruit-payoff-stats {
  font-size: 1.05rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  letter-spacing: 0.02em;
}
.fruit-payoff-stats .fruit-payoff-dot {
  color: var(--muted);
  font-weight: 500;
  margin: 0 0.15rem;
}
.fruit-payoff-meter {
  width: min(100%, 22rem);
  margin: 0;
}
.fruit-payoff-meter .meter-track {
  height: 0.55rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.fruit-payoff-meter .meter-fill {
  height: 100%;
  border-radius: 999px;
  transition: width 1.25s cubic-bezier(0.22, 1, 0.36, 1);
  background: color-mix(in srgb, var(--correct, #22c55e) 82%, transparent);
}

/* Remembered (review) meter — cooler accent than first-learn green */
.meter-remembered .meter-fill {
  background: color-mix(in srgb, #569cd6 75%, transparent);
}
.fruit-payoff-scores {
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0;
}
.fruit-payoff-pack {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}
.fruit-payoff-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 0.35rem;
}
@media (prefers-reduced-motion: reduce) {
  .fruit-payoff-tick path {
    transition: none;
    stroke-dashoffset: 0;
  }
  .fruit-payoff-meter .meter-fill {
    transition: none;
  }
}

.meters-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 0.75rem;
  margin-bottom: 0.5rem;
}
.meters-title { font-size: 0.85rem; font-weight: 600; }
.meters-sub { font-size: 0.72rem; color: var(--muted); }
.meters-sub strong { color: var(--accent); }
.meter-row {
  display: grid;
  grid-template-columns: 5.6rem 1fr 4.6rem;
  align-items: center;
  gap: 0.45rem 0.55rem;
  margin-bottom: 0.35rem;
}
.meter-learned .meter-fill { background: var(--accent); }
.meter-mastered .meter-fill { background: rgba(34, 197, 94, 0.75); }
.meter-count {
  font-size: 0.72rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
  line-height: 1.2;
}
.meter-pct { display: block; color: var(--accent); font-weight: 700; font-size: 0.82rem; }
.meters-hint { font-size: 0.78rem; color: var(--muted); }
.progress-transfer { margin-top: 0.75rem; }
.progress-transfer-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.4rem; }
.case-block { margin-bottom: 1rem; }
.case-head { font-weight: 600; }
.case-pl { color: var(--accent); }
.case-en { color: var(--muted); font-weight: 500; }
.case-job { font-size: 0.9rem; color: var(--muted); margin: 0.25rem 0 0.4rem; }
.case-triggers { margin: 0; padding-left: 1.1rem; }
.case-triggers li { margin: 0.2rem 0; }

/* Arbor — joined tree (canopy + soil + roots) */
.arbor-host {
  margin-top: 0.5rem;
}
.arbor-stage-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}
.arbor-stage-btn {
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.3rem 0.45rem;
  border-radius: 6px;
  border: 1px solid var(--accent-border);
  background: rgba(0, 0, 0, 0.25);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  min-width: 3.6rem;
}
.arbor-stage-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}
.arbor-stage-btn.is-current {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--text);
}
.arbor-stage-tag {
  font-size: 0.62rem;
  font-weight: 500;
  color: var(--muted);
  text-transform: lowercase;
}
.arbor-stage-btn.is-current .arbor-stage-tag {
  color: color-mix(in srgb, var(--accent) 80%, white);
}
.arbor-wrap {
  margin: 0;
}
.arbor-caption {
  margin: 0 0 0.25rem;
  font-size: 0.88rem;
  color: var(--text);
}
.arbor-caption2 {
  margin: 0 0 0.65rem;
  font-size: 0.78rem;
  color: var(--muted);
}
.arbor-svg-host {
  border-radius: var(--radius);
  border: 1px solid var(--accent-border);
  background: #0a0a0a;
  overflow: hidden;
  line-height: 0;
}
.arbor-svg {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(72vh, 640px);
}
.arbor-svg .tree-root:hover,
.arbor-svg .tree-knot:hover,
.arbor-svg .tree-tap:hover {
  filter: brightness(1.25);
}
.arbor-meta {
  margin: 0.55rem 0 0;
  font-size: 0.75rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.4rem;
  align-items: baseline;
}
.arbor-meta strong {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.arbor-meta-sep {
  opacity: 0.45;
}

.foot code {
  color: var(--accent);
  font-size: 0.72rem;
}

#boot-error {
  border-color: var(--wrong);
  color: var(--wrong);
}

/* Smoke flags (rupl-exp model) */
.smoke-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin: 0 0 0.45rem;
  padding: 0.25rem 0;
}
/* display:flex above beats the UA [hidden] rule — without this the Flag
   toolbar showed with author tools off. */
.smoke-toolbar[hidden] {
  display: none;
}

.smoke-toolbar .smoke-flag-btn,
.smoke-toolbar .smoke-flag-list {
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--accent);
  background: #0d0d0d;
  color: var(--accent);
  cursor: pointer;
}

.smoke-toolbar .smoke-flag-btn:hover,
.smoke-toolbar .smoke-flag-list:hover {
  background: var(--accent);
  color: #0d0d0d;
}

.smoke-toolbar-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-left: 0.15rem;
}

.smoke-flag-list.has-flags,
[data-smoke-badge].has-flags {
  border-color: var(--accent) !important;
  color: var(--accent) !important;
  font-weight: 700;
}

.util-btn.has-flags {
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 700;
}

.smoke-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(0, 0, 0, 0.65);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 1.25rem 0.75rem;
  overflow: auto;
}

.smoke-overlay[hidden] {
  display: none !important;
}

.smoke-panel {
  width: min(32rem, 100%);
  margin-top: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem 1.15rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
}

.smoke-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
}

.smoke-panel-head h2 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--accent);
}

.smoke-close,
.btn-ghost.smoke-close {
  font-family: inherit;
  font-size: 0.85rem;
  background: transparent;
  border: 1px solid var(--accent-border);
  color: var(--muted);
  border-radius: 6px;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
}

.smoke-close:hover {
  color: var(--text);
  border-color: var(--accent);
}

.smoke-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 0.75rem;
  line-height: 1.4;
}

.smoke-meta {
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
  line-height: 1.45;
}

.smoke-line {
  margin-top: 0.25rem;
  color: var(--text);
  word-break: break-word;
}

.smoke-label {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.65rem;
}

.smoke-label select,
.smoke-label .type-in {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  font-family: inherit;
  font-size: 0.9rem;
  padding: 0.4rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--accent-border);
  background: #0a0a0a;
  color: var(--text);
}

.smoke-actions {
  display: flex;
  margin-top: 0.5rem;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.smoke-status {
  font-size: 0.8rem;
  margin: 0.65rem 0 0;
}

.smoke-status.ok {
  color: var(--correct);
}

.smoke-status.bad {
  color: var(--wrong);
}

.smoke-list {
  max-height: min(50vh, 22rem);
  overflow: auto;
  margin-bottom: 0.75rem;
  border-top: 1px solid var(--accent-border);
}

.smoke-row {
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--accent-border);
  font-size: 0.82rem;
}

.smoke-row-head {
  font-weight: 600;
  color: var(--text);
}

.smoke-row-snip {
  color: var(--muted);
  margin-top: 0.15rem;
}

.smoke-row-typed,
.smoke-row-note {
  margin-top: 0.2rem;
  color: var(--muted);
}

.link.smoke-rm {
  font-family: inherit;
  background: none;
  border: none;
  color: var(--muted);
  text-decoration: underline;
  font-size: 0.78rem;
  cursor: pointer;
  padding: 0;
  margin-top: 0.25rem;
}

.link.smoke-rm:hover {
  color: var(--wrong);
}

.smoke-fallback-ta {
  width: 100%;
  min-height: 6rem;
  margin-top: 0.5rem;
  font-family: ui-monospace, monospace;
  font-size: 0.75rem;
  background: #0a0a0a;
  color: var(--text);
  border: 1px solid var(--accent-border);
  border-radius: 4px;
  padding: 0.5rem;
}

/* ---- Tabulae · paradigm reference (2026-08-17) ---- */
.ref-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.ref-block {
  margin: 0.6rem 0;
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  padding: 0.5rem 0.8rem;
}

.ref-block summary {
  cursor: pointer;
}

.ref-exemplar {
  color: var(--muted);
  font-size: 0.85em;
  margin-left: 0.35rem;
}

.ref-table {
  border-collapse: collapse;
  margin: 0.6rem 0;
  width: 100%;
  max-width: 34rem;
}

.ref-table th,
.ref-table td {
  border: 1px solid var(--accent-dim);
  padding: 0.3rem 0.6rem;
  text-align: left;
  font-size: 0.92rem;
}

.ref-table thead th {
  color: var(--accent);
  font-weight: 600;
}

.ref-form.ref-later {
  color: var(--locked);
}

.ref-later-mark {
  font-size: 0.68em;
  color: var(--locked);
  border: 1px solid var(--locked);
  border-radius: 999px;
  padding: 0 0.35em;
  margin-left: 0.3em;
  vertical-align: middle;
}

.ref-drill {
  margin: 0.6rem 0 0.3rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  background: var(--accent-dim);
}

.ref-drill-cue {
  font-weight: 600;
  margin: 0 0 0.45rem;
}

.ref-drill-n {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.85em;
  margin-left: 0.4rem;
}

.ref-drill-input {
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  padding: 0.4rem 0.6rem;
  font-size: 1rem;
  margin-right: 0.5rem;
  width: 12rem;
  max-width: 55%;
}

.ref-drill-fb.is-ok {
  color: var(--correct);
}

.ref-drill-fb.is-wrong {
  color: var(--wrong);
}

.ref-drill-score {
  margin: 0 0 0.5rem;
}

.ref-drill-correction {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin: 0.3rem 0 0.6rem;
}

/* ---- Nova verba · word register (2026-08-17) ---- */
.lex-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0;
}

.lex-line {
  padding: 0.3rem 0;
  border-bottom: 1px solid var(--accent-dim);
  font-size: 0.95rem;
  line-height: 1.5;
}

.lex-line:last-child {
  border-bottom: none;
}

.lex-fam {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
}

.lex-fam-plain {
  color: var(--muted);
}

.match-tag {
  font-size: 0.62em;
  color: var(--muted);
  border: 1px solid var(--accent-dim);
  border-radius: 999px;
  padding: 0.05em 0.5em;
  margin-left: 0.5em;
  vertical-align: middle;
  white-space: nowrap;
}

.level-anchor {
  color: var(--muted);
  font-size: 0.82rem;
  margin: -0.5rem 0 1rem;
  font-style: italic;
}