:root {
  /* Dark by default — warm ink paper, terracotta accent */
  --bg: #14110e;
  --paper: #1c1814;
  --ink: #efe6d8;
  --muted: #a39888;
  --line: #3a342c;
  --accent: #c96b5a;
  --good: #6aab7f;
  --chip: #2a241c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.45 "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  direction: ltr;
  color-scheme: dark;
}

.page {
  max-width: 920px;
  min-height: 100dvh;
  margin: 0 auto;
  padding: 2.6rem 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
}

.lang-switch {
  display: inline-flex;
  gap: 0.15rem;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 0.1rem;
}

.lang-btn {
  font: inherit;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: transparent;
  border: 0;
  padding: 0.15rem 0.45rem;
  cursor: pointer;
}

.lang-btn:hover {
  color: var(--ink);
}

.lang-btn.is-active {
  color: var(--bg);
  background: var(--accent);
}

.home-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.82rem;
  letter-spacing: 0.02em;
  border-bottom: 1px dotted transparent;
  white-space: nowrap;
}

.home-link:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.ver {
  flex-shrink: 0;
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.site-foot {
  margin-top: auto;
  padding-top: min(42vh, 18rem);
  padding-bottom: 0.2rem;
  border-top: 0;
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  color: color-mix(in srgb, var(--muted) 42%, transparent);
  min-height: 0;
}

.site-foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
  justify-content: center;
  align-items: center;
}

.legal-link {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted transparent;
}

.legal-link:hover,
.legal-link:focus-visible {
  color: var(--muted);
  border-bottom-color: color-mix(in srgb, var(--muted) 55%, transparent);
}

.composer-row {
  display: flex;
  align-items: stretch;
  gap: 0.55rem;
  width: 100%;
}

.composer {
  position: relative;
  flex: 1 1 auto;
  min-width: 0;
  /* Matches input-frame.html: padding + 1.25rem type ≈ 3.35rem */
  height: 3.35rem;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--paper);
  transition: height 0.22s ease, border-color 0.15s ease;
}

.composer.is-loading {
  height: 3.35rem;
  border-color: var(--line);
}

.composer.is-error {
  height: 3.35rem;
  border-color: var(--accent);
}

.composer.is-ready {
  /* Keep the shell border — the iframe input is borderless so a second
     inset border cannot be clipped by the iframe viewport. */
  height: 3.35rem;
  border-color: var(--line);
  background: var(--paper);
}

.composer.is-ready.is-focused {
  border-color: var(--accent);
}

.input-host {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.input-host[hidden] {
  display: none;
}

.qframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
  color-scheme: dark;
}

.prefs-toggle {
  flex: 0 0 auto;
  width: 3.35rem;
  align-self: stretch;
  min-height: 3.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--paper);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.composer-row.is-loading .prefs-toggle,
.composer-row.is-error .prefs-toggle {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
}

.prefs-toggle:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.prefs-toggle[aria-expanded="true"] {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

.prefs-toggle-icon {
  display: block;
}

.status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

/* Progress lives inside the composer shell (same box as the future input). */
.lex-load {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.35rem;
  margin: 0;
  padding: 0 0.95rem;
  border: 0;
  background: transparent;
  pointer-events: none;
}

.lex-load[hidden],
.composer.is-ready .lex-load {
  display: none;
}

.lex-load-label {
  margin: 0;
  font-size: 0.82rem;
  letter-spacing: 0.01em;
  color: var(--accent);
  text-align: center;
}

.lex-load-label[hidden] {
  display: none;
}

.lex-load-track {
  position: relative;
  height: 0.28rem;
  border: 0;
  background: var(--chip);
  overflow: hidden;
  flex-shrink: 0;
  border-radius: 1px;
}

.lex-load-fill {
  height: 100%;
  width: 0%;
  background: color-mix(in srgb, var(--accent) 85%, #8a4034);
  transform-origin: left center;
  transition: width 0.14s linear;
}

.lex-load-track.is-indeterminate .lex-load-fill {
  width: 38%;
  transition: none;
  animation: lex-indeterminate 1.05s ease-in-out infinite;
}

.lex-load.is-error .lex-load-track {
  display: none;
}

.lex-load.is-error .lex-load-label {
  display: block;
}

@keyframes lex-indeterminate {
  0% { transform: translateX(-130%); }
  100% { transform: translateX(280%); }
}

.panels[hidden],
.results[hidden] {
  display: none;
}

.prefs-drawer {
  margin: 0.75rem 0 0.15rem;
}

.prefs-drawer[hidden] {
  display: none;
}

.prefs {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  margin: 0;
}

.prefs-panel {
  border: 1px solid var(--line);
  background: var(--paper);
}

.prefs-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.4rem 0.65rem;
  border-bottom: 1px solid var(--line);
}

.prefs-panel-title {
  font-size: 0.82rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.pref {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.82rem;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  min-width: 0;
}

.pref.check {
  display: grid;
  grid-template-columns: 1.1rem 1fr;
  align-items: start;
  gap: 0.45rem;
  margin: 0;
  line-height: 1.35;
}

.pref.check input[type="checkbox"] {
  margin: 0.15rem 0 0;
  accent-color: var(--accent);
}

.prefs-sliders > summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  font-size: 0.82rem;
  color: var(--muted);
  padding: 0.4rem 0.65rem;
  letter-spacing: 0.02em;
}

.prefs-sliders > summary::-webkit-details-marker {
  display: none;
}

.prefs-sliders > summary::before {
  content: "▸";
  display: inline-block;
  width: 1em;
  color: var(--accent);
}

.prefs-sliders[open] > summary::before {
  content: "▾";
}

.prefs-sliders > summary:hover {
  color: var(--ink);
}

.prefs-matrix {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem 1.4rem;
  padding: 0.65rem;
}

.prefs-sliders .prefs-matrix {
  padding: 0.65rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 620px) {
  .prefs-matrix {
    grid-template-columns: 1fr;
  }
}

.pref.range {
  display: grid;
  grid-template-columns: minmax(7.5rem, 9.5rem) 1fr 2.4rem;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
}

.pref.range input[type="range"] {
  width: 100%;
  min-width: 0;
  accent-color: var(--accent);
}

.pref-reset {
  border-bottom: 1px dotted transparent;
}

.pref-reset:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.pref-val {
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--ink);
  font-size: 0.8rem;
}

.prefs-reset-all {
  font: inherit;
  font-size: 0.78rem;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--line);
  padding: 0.15rem 0.5rem;
  cursor: pointer;
  border-radius: 2px;
  flex-shrink: 0;
}

.prefs-reset-all:hover {
  border-color: var(--accent);
}

.results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.2rem;
}

.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
  contain: content;
}

@media (max-width: 760px) {
  .panels { grid-template-columns: 1fr; }
}

.panel {
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 0.9rem 1rem 1.1rem;
  min-height: 12rem;
}

.panel-units {
  min-height: 0;
  padding: 0.75rem 0.9rem 0.85rem;
}

.panel-rhymes {
  min-height: 12rem;
}

.panel h2 {
  margin: 0 0 0.7rem;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.meta { letter-spacing: 0; text-transform: none; font-weight: 400; }

.analysis-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.9rem;
  direction: ltr;
  unicode-bidi: isolate;
}

.ipa,
.sentence-ipa,
.reading-ipa {
  font-family: "Noto Sans", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-feature-settings: "kern" 1;
  color: var(--muted);
  font-size: 1.02rem;
  direction: ltr;
  unicode-bidi: isolate;
  word-break: break-word;
}

.analysis-row .sentence-ipa {
  margin: 0;
  font-size: 0.95rem;
}

.sentence-bits {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem 0.65rem;
  direction: ltr;
  unicode-bidi: isolate;
}

.word-inline {
  display: inline-flex;
  flex-direction: row;
  gap: 0.28rem;
  direction: ltr;
}

.bit {
  background: var(--chip);
  padding: 0.15rem 0.4rem;
  font-size: 0.82rem;
}

.bit.stress {
  outline: 1px solid var(--accent);
}

.source-marks {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.src-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.15rem;
  height: 1.15rem;
  color: var(--muted);
  opacity: 0.78;
}

.src-mark svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.25;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.src-mark.src-db {
  color: color-mix(in srgb, var(--good) 70%, var(--muted));
}

.src-mark.src-algo {
  color: color-mix(in srgb, var(--accent) 55%, var(--muted));
}

.units {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.unit-choice {
  appearance: none;
  display: block;
  width: 100%;
  margin: 0;
  padding: 0.4rem 0.45rem;
  border: 1px solid transparent;
  border-radius: 2px;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, opacity 0.15s ease;
}

.unit-choice.is-solo {
  cursor: default;
  padding: 0;
  border-color: transparent;
  background: transparent;
}

.unit-choice:not(.is-solo):not(.is-active) {
  opacity: 0.62;
}

.unit-choice:not(.is-solo):not(.is-active):hover,
.unit-choice:not(.is-solo):not(.is-active):focus-visible {
  opacity: 1;
  border-color: var(--line);
}

.unit-choice.is-active {
  opacity: 1;
  border-color: var(--good);
  background: color-mix(in srgb, var(--good) 10%, transparent);
}

.rhyme {
  display: grid;
  grid-template-columns: 3.6rem 1fr;
  gap: 0.45rem;
  align-items: baseline;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
}

.rhyme:last-child { border-bottom: 0; }

.pct {
  font-variant-numeric: tabular-nums;
  color: var(--good);
  font-size: 0.9rem;
}

.rhyme .name { font-size: 1.05rem; }

.rhyme .sub {
  font-family: "Noto Sans", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-feature-settings: "kern" 1;
  color: var(--muted);
  font-size: 0.8rem;
  direction: ltr;
  unicode-bidi: isolate;
  word-break: break-word;
  margin-top: 0.12rem;
}

.kind {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-left: 0.35rem;
}

.empty { color: var(--muted); }

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}