:root {
  color-scheme: light;
  --ink: #38251b;
  --muted: #705b4f;
  --paper: #fffaf3;
  --surface: #ffffff;
  --leaf: #8a4f28;
  --leaf-dark: #60351d;
  --mint: #f1e1cf;
  --sun: #d99a32;
  --sun-soft: #fff0c9;
  --line: #dfcdbc;
  --danger: #a13b32;
  --shadow: 0 18px 50px rgb(70 39 22 / 11%);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 18px;
  line-height: 1.6;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 85% 4%, rgb(217 154 50 / 22%), transparent 26rem),
    var(--paper);
}

button,
input,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: var(--leaf);
  text-underline-offset: 0.18em;
}

:focus-visible {
  outline: 3px solid #4e2b18;
  outline-offset: 3px;
  box-shadow: 0 0 0 6px #ffd76a;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.6rem 0.9rem;
  color: white;
  background: var(--leaf-dark);
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 1.2rem;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.25rem 0;
}

.brand {
  display: inline-flex;
  gap: 0.7rem;
  align-items: center;
  color: var(--ink);
  font-weight: 800;
  text-decoration: none;
}

.brand__mark {
  display: grid;
  min-width: 4.2rem;
  min-height: 2.5rem;
  padding: 0.3rem 0.55rem;
  place-items: center;
  color: white;
  border-radius: 0.7rem 0.7rem 0.7rem 0.15rem;
  background: var(--leaf);
  letter-spacing: 0.04em;
}

.header-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-weight: 700;
  white-space: nowrap;
}

.site-nav {
  display: flex;
  gap: 0.25rem;
  align-items: center;
  justify-content: center;
}

.site-nav__link {
  min-height: 44px;
  padding: 0.52rem 0.78rem;
  color: var(--muted);
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 800;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav__link:hover,
.site-nav__link[aria-current="page"] {
  color: var(--leaf-dark);
  background: var(--mint);
}

.header-actions {
  display: flex;
  gap: 0.7rem;
  align-items: center;
}

.header-install,
.text-button {
  min-height: 44px;
  padding: 0.45rem 0.75rem;
  color: var(--leaf-dark);
  border: 1px solid var(--line);
  border-radius: 0.7rem;
  background: var(--surface);
  font: inherit;
  font-size: 0.84rem;
  font-weight: 800;
  cursor: pointer;
}

.header-install {
  white-space: nowrap;
}

main,
.site-footer {
  width: min(1180px, calc(100% - 2rem));
  margin-inline: auto;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(360px, 1.12fr);
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
  min-height: 31rem;
  padding: 3rem 0 4rem;
}

.kicker,
.eyebrow {
  margin: 0 0 0.45rem;
  color: var(--leaf);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 1.2rem;
  font-size: clamp(2.7rem, 7vw, 5.3rem);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

h1 span {
  color: var(--leaf);
}

.hero__intro {
  max-width: 35rem;
  color: var(--muted);
  font-size: 1.12rem;
}

.search-panel {
  padding: clamp(1.4rem, 4vw, 2.2rem);
  border: 1px solid var(--line);
  border-radius: 1.6rem;
  background: rgb(255 255 255 / 92%);
  box-shadow: var(--shadow);
}

.search-form > label {
  display: block;
  margin-bottom: 0.65rem;
  font-size: 1.1rem;
  font-weight: 800;
}

.search-form__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.6rem;
}

input,
select {
  min-height: 3.25rem;
  padding: 0.7rem 0.9rem;
  color: var(--ink);
  border: 2px solid #bfa58f;
  border-radius: 0.8rem;
  background: white;
}

input {
  width: 100%;
  font-size: 1.05rem;
}

input:disabled,
select:disabled {
  cursor: wait;
  opacity: 0.65;
}

.filter-row {
  display: flex;
  gap: 0.7rem;
  align-items: center;
  margin-top: 0.8rem;
}

.filter-row label {
  font-weight: 750;
}

.filter-row select {
  min-height: 2.7rem;
  padding-block: 0.35rem;
}

.button {
  min-width: 44px;
  min-height: 44px;
  padding: 0.68rem 1rem;
  border: 0;
  border-radius: 0.75rem;
  font-weight: 800;
  cursor: pointer;
}

.button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.button--primary {
  color: white;
  background: var(--leaf);
}

.button--primary:hover:not(:disabled) {
  background: var(--leaf-dark);
}

.button--secondary,
.button--audio {
  color: var(--leaf-dark);
  border: 1px solid var(--line);
  background: var(--mint);
}

.suggestions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  align-items: center;
  margin-top: 1rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.suggestions button {
  min-height: 2.2rem;
  padding: 0.25rem 0.7rem;
  color: var(--leaf-dark);
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  cursor: pointer;
}

.suggestion-list {
  display: contents;
}

.suggestions .suggestions__shuffle {
  color: var(--muted);
  border-style: dashed;
  background: var(--mint);
  font-weight: 750;
}

.search-status {
  min-height: 1.7rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-weight: 650;
}

.search-status[data-kind="error"] {
  color: var(--danger);
}

.search-status[data-kind="success"] {
  color: var(--leaf);
}

.text-data-status {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.55rem 0.8rem;
  align-items: center;
  margin-top: 0.9rem;
  padding: 0.8rem 0.9rem;
  border: 1px solid #d8c4b0;
  border-radius: 0.85rem;
  background: #fff8ef;
}

.text-data-status__copy {
  display: grid;
  gap: 0.15rem;
}

.text-data-status__copy span {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.text-data-status progress {
  grid-column: 1 / -1;
  width: 100%;
  height: 0.55rem;
  accent-color: var(--leaf);
}

.text-data-status[data-kind="ready"] {
  border-color: #9fc9b8;
  background: var(--mint);
}

.text-data-status[data-kind="error"] {
  border-color: #e1aaa4;
  background: #fff0ed;
}

.text-data-status[data-kind="error"] strong {
  color: var(--danger);
}

.text-data-status[data-kind="ready"] progress,
.text-data-status[data-kind="error"] progress {
  display: none;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0 0 4rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--surface);
}

.stats div {
  display: grid;
  gap: 0.1rem;
  padding: 1.2rem;
  text-align: center;
}

.stats div + div {
  border-left: 1px solid var(--line);
}

.stats strong {
  color: var(--leaf);
  font-size: 1.8rem;
  line-height: 1.2;
}

.stats span {
  color: var(--muted);
  font-size: 0.88rem;
}

.results {
  display: grid;
  gap: 1.2rem;
  scroll-margin-top: 1rem;
}

.results:not(:empty) {
  margin-bottom: 2rem;
}

.result-card,
.empty-state {
  padding: clamp(1.2rem, 4vw, 2rem);
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: var(--surface);
  box-shadow: 0 8px 30px rgb(23 49 43 / 6%);
}

.result-card__header {
  display: flex;
  gap: 1rem;
  align-items: start;
  justify-content: space-between;
  margin-bottom: 1.1rem;
}

.result-card__title {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  line-height: 1.2;
}

.result-card__speech-note {
  max-width: 34rem;
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.comparison-list {
  display: grid;
  gap: 0.75rem;
}

.comparison {
  display: grid;
  grid-template-columns: minmax(9rem, 0.65fr) minmax(16rem, 1.8fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border-radius: 0.9rem;
  background: #fff9f2;
}

.comparison--matched {
  border: 2px solid var(--leaf);
  background: #fff5e8;
}

.match-badge {
  width: max-content;
  padding: 0.12rem 0.48rem;
  color: white;
  border-radius: 999px;
  background: var(--leaf);
  font-size: 0.7rem;
  font-weight: 850;
}

.results__more {
  justify-self: center;
  min-width: min(18rem, 100%);
}

.comparison__words {
  display: grid;
  gap: 0.05rem;
}

.comparison__hanji {
  font-size: 1.35rem;
}

.comparison__pronunciation {
  color: var(--leaf);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.variant-details {
  display: grid;
  gap: 0.35rem;
}

.variant-detail {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.variant-detail strong {
  color: var(--ink);
}

.variant-detail--pronunciation {
  color: var(--leaf-dark);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.accent-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.accent-tag {
  padding: 0.18rem 0.55rem;
  color: #653b1e;
  border-radius: 999px;
  background: var(--sun-soft);
  font-size: 0.78rem;
  font-weight: 750;
}

.comparison__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: center;
  justify-content: end;
}

.source-link,
.audio-unavailable {
  font-size: 0.82rem;
}

.audio-unavailable {
  color: var(--muted);
}

.offline-card {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 2rem;
  align-items: center;
  margin: 4rem 0;
  padding: clamp(1.4rem, 5vw, 2.8rem);
  color: white;
  border-radius: 1.4rem;
  background: var(--leaf-dark);
}

.offline-card h2 {
  margin-bottom: 0.6rem;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.2;
}

.offline-card .eyebrow {
  color: #b8ead8;
}

.offline-card__action {
  padding: 1rem;
  color: var(--ink);
  border-radius: 1rem;
  background: white;
  text-align: center;
}

.offline-card__action .button {
  width: 100%;
}

.offline-card__action .button + .button {
  margin-top: 0.65rem;
}

.offline-card__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: center;
  margin-top: 0.6rem;
}

.offline-card__controls .text-button {
  min-height: 36px;
  padding: 0.25rem 0.65rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.offline-card__action p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.fine-print {
  margin-bottom: 0;
  color: #f2d8c4;
  font-size: 0.82rem;
}

.about {
  display: grid;
  grid-template-columns: 0.8fr 1.5fr;
  gap: 3rem;
  margin: 5rem 0;
  scroll-margin-top: 2rem;
}

.about h2 {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.25;
}

.about__grid {
  display: grid;
  gap: 1rem;
}

.about__grid article {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}

.about__grid h3 {
  margin-bottom: 0.3rem;
}

.about__grid p {
  margin-bottom: 0;
  color: var(--muted);
}

.learning-view {
  min-height: 35rem;
  padding: clamp(1.5rem, 5vw, 3.5rem) 0 5rem;
}

.learning-view:focus-visible,
.results:focus-visible {
  outline: 0;
  box-shadow: none;
}

.learning-shell {
  display: grid;
  gap: 1.2rem;
  width: min(780px, 100%);
  margin-inline: auto;
}

.learning-card {
  padding: clamp(1.25rem, 5vw, 2.25rem);
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.learning-card h1,
.learning-card h2 {
  margin-bottom: 0.65rem;
  font-size: clamp(1.75rem, 5vw, 2.8rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.learning-card h3 {
  margin-bottom: 0.45rem;
}

.learning-lead,
.learning-muted {
  color: var(--muted);
}

.learning-storage-warning {
  margin: 0.8rem 0;
  padding: 0.75rem 0.9rem;
  color: var(--danger);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, white);
  border-radius: 0.75rem;
  background: #fff4f1;
  font-weight: 750;
}

.learning-lead {
  font-size: 1.05rem;
}

.learning-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.25rem;
}

.learning-actions .button {
  flex: 1 1 10rem;
}

.challenge-accent {
  display: grid;
  grid-template-columns: auto minmax(10rem, 1fr);
  gap: 0.7rem;
  align-items: center;
  margin-top: 1rem;
  font-weight: 800;
}

.challenge-accent select {
  width: 100%;
}

.learning-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.7rem;
  margin: 1.25rem 0;
}

.learning-stat {
  display: grid;
  gap: 0.15rem;
  padding: 0.9rem 0.55rem;
  border-radius: 0.9rem;
  background: #fff8ef;
  text-align: center;
}

.learning-stat strong {
  color: var(--leaf);
  font-size: 1.45rem;
}

.learning-stat span {
  color: var(--muted);
  font-size: 0.78rem;
}

.quiz-head {
  display: flex;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.quiz-progress {
  width: 100%;
  height: 0.55rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--mint);
}

.quiz-progress > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--leaf);
}

.quiz-prompt {
  padding: 1.3rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: #fff8ef;
  text-align: center;
}

.quiz-audio-button {
  width: min(22rem, 100%);
  min-height: 4.2rem;
  color: white;
  border: 0;
  border-radius: 1rem;
  background: var(--leaf);
  font: inherit;
  font-size: 1.15rem;
  font-weight: 850;
  cursor: pointer;
}

.quiz-hint {
  min-height: 2rem;
  margin: 0.8rem 0 0;
  color: var(--leaf-dark);
  font-weight: 750;
}

.quiz-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1rem;
}

.quiz-option {
  min-height: 4rem;
  padding: 0.8rem;
  color: var(--ink);
  border: 2px solid var(--line);
  border-radius: 0.9rem;
  background: var(--surface);
  font: inherit;
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
}

.quiz-option:hover:not(:disabled) {
  border-color: var(--leaf);
  background: var(--mint);
}

.quiz-option:disabled {
  cursor: default;
  opacity: 1;
}

.quiz-option.is-correct {
  color: white;
  border-color: var(--leaf);
  background: var(--leaf);
}

.quiz-option.is-wrong {
  color: white;
  border-color: var(--danger);
  background: var(--danger);
}

.quiz-feedback {
  margin-top: 1rem;
  padding: 1rem;
  border-radius: 0.9rem;
  background: var(--sun-soft);
}

.quiz-feedback[data-correct="true"] {
  background: var(--mint);
}

.quiz-feedback__result {
  margin-bottom: 0.35rem;
  font-size: 1.15rem;
  font-weight: 900;
}

.quiz-feedback__word {
  margin-bottom: 0.25rem;
  font-size: 1.35rem;
  font-weight: 850;
}

.quiz-feedback__pronunciation {
  color: var(--leaf-dark);
  font-weight: 750;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 0.35rem;
  margin: 1.2rem 0;
}

.answer-grid span {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 0.35rem;
  background: var(--line);
  color: #fff;
  font-weight: 900;
  line-height: 1;
}

.answer-grid span[data-correct="true"] {
  background: var(--leaf);
}

.answer-grid span[data-correct="false"] {
  background: var(--danger);
}

.result-score {
  margin: 0.4rem 0;
  color: var(--leaf);
  font-size: clamp(3.6rem, 14vw, 6.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.06em;
}

.wrong-list {
  display: grid;
  gap: 0.7rem;
  margin: 1rem 0;
  padding: 0;
  list-style: none;
}

.wrong-list__item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.9rem;
  align-items: center;
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: #fff8ef;
}

.wrong-list__item strong,
.wrong-list__item span {
  display: block;
}

.wrong-list__item span {
  color: var(--muted);
  font-size: 0.86rem;
}

.mastery-dots {
  display: flex;
  gap: 0.25rem;
}

.mastery-dots i {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--line);
}

.mastery-dots i.on {
  background: var(--leaf);
}

.flashcard {
  min-height: 22rem;
  text-align: center;
}

.flashcard__front,
.flashcard__back {
  display: grid;
  gap: 0.75rem;
  min-height: 14rem;
  place-content: center;
}

.flashcard__pronunciation {
  color: var(--leaf);
  font-size: clamp(1.4rem, 5vw, 2.1rem);
  font-weight: 850;
}

.flashcard__answer {
  font-size: clamp(2.4rem, 10vw, 4.5rem);
  font-weight: 900;
  line-height: 1.1;
}

.learning-empty {
  padding: 1.25rem;
  border-radius: 0.9rem;
  background: #fff8ef;
  text-align: center;
}

.share-status {
  min-height: 1.6rem;
  margin-top: 0.6rem;
  color: var(--muted);
  font-size: 0.86rem;
}

.site-footer {
  padding: 2rem 0 7rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
}

.audio-dock {
  position: fixed;
  z-index: 50;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) minmax(16rem, 1.5fr) auto;
  gap: 1rem;
  align-items: center;
  width: min(900px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 0.8rem 1rem;
  color: white;
  border-radius: 1rem;
  background: #3f2417;
  box-shadow: 0 10px 45px rgb(0 0 0 / 28%);
}

.audio-dock[hidden] {
  display: none;
}

.audio-dock div {
  display: grid;
  line-height: 1.35;
}

.audio-dock span {
  color: #f2d8c4;
  font-size: 0.75rem;
}

.audio-dock audio {
  width: 100%;
}

.noscript {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  padding: 1rem;
  color: white;
  background: var(--danger);
  text-align: center;
}

@media (max-width: 850px) {
  .site-header {
    grid-template-columns: auto 1fr;
  }

  .site-nav {
    grid-column: 1 / -1;
    grid-row: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }

  .site-nav__link {
    padding-inline: 0.35rem;
    text-align: center;
  }

  .header-actions {
    justify-self: end;
  }

  .hero,
  .about,
  .offline-card {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 1rem;
    padding-top: 2rem;
  }

  .comparison {
    grid-template-columns: 1fr;
  }

  .comparison__actions {
    justify-content: start;
  }

  .audio-dock {
    grid-template-columns: 1fr auto;
  }

  .audio-dock audio {
    grid-column: 1 / -1;
    grid-row: 2;
  }
}

@media (max-width: 560px) {
  :root {
    font-size: 17px;
  }

  .header-link {
    font-size: 0.82rem;
  }

  .site-header {
    gap: 0.75rem;
  }

  .brand__mark {
    min-width: 3.9rem;
  }

  .header-install {
    padding-inline: 0.55rem;
  }

  .header-actions {
    gap: 0.35rem;
  }

  .search-form__row {
    grid-template-columns: 1fr;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .stats div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .result-card__header {
    display: grid;
  }

  .result-card__header .button {
    width: 100%;
  }

  .learning-stats {
    grid-template-columns: 1fr 1fr;
  }

  .challenge-accent {
    grid-template-columns: 1fr;
  }

  .quiz-options {
    grid-template-columns: 1fr;
  }

  .quiz-option {
    min-height: 3.55rem;
  }

  .wrong-list__item {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}