:root {
  color-scheme: light;
  --ink: #17312b;
  --muted: #52665f;
  --paper: #fbfaf4;
  --surface: #ffffff;
  --leaf: #1f5b4f;
  --leaf-dark: #17463d;
  --mint: #dceee5;
  --sun: #f2b94b;
  --sun-soft: #fff1ca;
  --line: #cfddd6;
  --danger: #a33d2d;
  --shadow: 0 18px 50px rgb(23 49 43 / 10%);
  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(242 185 75 / 20%), 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: 4px solid var(--sun);
  outline-offset: 3px;
}

.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: flex;
  align-items: center;
  justify-content: space-between;
  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 {
  font-weight: 700;
}

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

.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 #9fb8ae;
  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[data-speech-state="unavailable"] {
  cursor: not-allowed;
}

.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);
}

.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;
}

.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(11rem, 1fr) minmax(12rem, 1.25fr) auto;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border-radius: 0.9rem;
  background: #f4f8f5;
}

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

.comparison__hanji {
  font-size: 1.35rem;
}

.comparison__tailo {
  color: var(--leaf);
  font-family: ui-monospace, "SFMono-Regular", Consolas, monospace;
  font-size: 0.95rem;
  font-weight: 700;
}

.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: #624810;
  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 p {
  margin: 0.7rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.fine-print {
  margin-bottom: 0;
  color: #c9ded6;
  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);
}

.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: #102d27;
  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: #c9ded6;
  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) {
  .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 {
    display: none;
  }

  .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%;
  }
}

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