:root {
  --bg: #f9f9f7;
  --surface: #ffffff;
  --text: #1f2421;
  --muted: #6b716d;
  --faint: #9aa09c;
  --border: #e3e5e1;
  --accent: #3f9b52;
  --accent-strong: #2f7a3f;
  --accent-soft: #e5f3e7;
  --link: #2a6fb0;
  --mark: #fff1a8;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.06);
  --font-ja: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Noto Sans JP', 'Yu Gothic', Meiryo,
    sans-serif;
  --font: system-ui, -apple-system, 'Segoe UI', Roboto, var(--font-ja);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #161917;
    --surface: #1e2220;
    --text: #e6e9e7;
    --muted: #a0a7a2;
    --faint: #6f7671;
    --border: #2e3431;
    --accent: #5cb86e;
    --accent-strong: #7fcf8e;
    --accent-soft: #23352a;
    --link: #7fb4ea;
    --mark: #5a4d12;
    --shadow: none;
    color-scheme: dark;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}

:lang(ja) {
  font-family: var(--font-ja);
}

a {
  color: var(--link);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ---- header & search ---- */

.site-header {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 16px 12px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.logo:hover {
  text-decoration: none;
}

.logo-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 1.3rem;
  font-weight: 500;
}

.search {
  display: flex;
  flex: 1;
  min-width: 0;
  border: 2px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.search:focus-within {
  border-color: var(--accent);
}

.search input {
  flex: 1;
  min-width: 0;
  padding: 10px 14px;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 1.25rem;
  outline: none;
}

.search button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 0 14px;
  font-size: 1rem;
}

.search button:hover,
.radical-toggle[aria-expanded='true'] {
  color: var(--accent-strong);
}

.search .search-button {
  background: var(--accent);
  color: #fff;
}

.search .search-button:hover {
  background: var(--accent-strong);
  color: #fff;
}

/* ---- radical picker ---- */

.radical-panel {
  max-width: 1100px;
  margin: 0 auto 8px;
  padding: 0 16px;
}

.radical-picker {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  padding: 12px;
}

.radical-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 8px;
}

.radical-toolbar .reset {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  padding: 2px 10px;
  cursor: pointer;
}

.radical-grid,
.radical-results {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
}

.radical-results {
  max-height: 180px;
  overflow-y: auto;
  margin-bottom: 8px;
}

.radical-results:empty {
  display: none;
}

.radical-grid {
  max-height: 220px;
  overflow-y: auto;
}

.radical-picker button.radical,
.radical-picker button.kanji {
  width: 32px;
  height: 32px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0;
}

.radical-picker button.kanji {
  font-size: 1.3rem;
  width: 36px;
  height: 36px;
}

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

.radical-picker button[aria-pressed='true'] {
  background: var(--accent);
  color: #fff;
}

.radical-picker button:disabled {
  color: var(--faint);
  opacity: 0.35;
  cursor: default;
}

.stroke-count {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  height: 32px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.75rem;
  font-weight: 600;
}

.radical-results .more {
  align-self: center;
  color: var(--muted);
  font-size: 0.875rem;
  padding: 0 8px;
}

/* ---- handwriting ---- */

.handwriting-panel {
  display: flex;
  gap: 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  padding: 12px;
}

.handwriting-left {
  flex: none;
  width: min(300px, 100%);
}

.handwriting-pad-frame {
  position: relative;
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: 8px;
  /* dashed center guides, like practice paper */
  background:
    linear-gradient(var(--border), var(--border)) center / 100% 1px no-repeat,
    linear-gradient(var(--border), var(--border)) center / 1px 100% no-repeat,
    var(--bg);
}

.handwriting-pad {
  display: block;
  width: 100%;
  height: 100%;
  color: var(--text);
  touch-action: none;
  cursor: crosshair;
}

.handwriting-buttons {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}

.handwriting-buttons button {
  flex: 1;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  padding: 6px;
  cursor: pointer;
}

.handwriting-right {
  flex: 1;
  min-width: 0;
}

.handwriting-hint,
.handwriting-status {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 8px;
}

.candidate-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  margin-bottom: 8px;
}

.candidate-source {
  width: 100%;
  color: var(--muted);
  font-size: 0.75rem;
}

.candidate {
  width: 48px;
  height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
}

.candidate:first-of-type {
  border-color: var(--accent);
}

.candidate:hover {
  background: var(--accent-soft);
}

.panel-loading {
  color: var(--muted);
}

@media (max-width: 560px) {
  .handwriting-panel {
    flex-direction: column;
  }

  .handwriting-left {
    width: 100%;
  }
}

/* ---- Anki ---- */

.anki-panel {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  padding: 12px 16px;
  max-width: 640px;
}

.panel-title {
  font-size: 1rem;
  margin: 0 0 8px;
}

.anki-settings p {
  margin: 0 0 10px;
}

.anki-settings label {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  font-size: 0.9rem;
}

.anki-settings label > :first-child {
  flex: none;
}

.anki-settings select,
.anki-settings input {
  flex: 1;
  min-width: 0;
  padding: 4px 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  font: inherit;
}

.anki-settings button {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text);
  padding: 6px 12px;
  margin-top: 8px;
  cursor: pointer;
  font: inherit;
}

.anki-settings button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.anki-status.error {
  color: #c0392b;
}

.anki-status.ok {
  color: var(--accent-strong);
}

.anki-fields {
  margin: 8px 0;
  padding-left: 12px;
  border-left: 2px solid var(--border);
}

.hint {
  color: var(--muted);
  font-size: 0.85rem;
}

.anki-advanced summary {
  color: var(--muted);
  font-size: 0.85rem;
  cursor: pointer;
  margin-top: 10px;
}

/* the + / ✓ control on each entry */
.anki {
  display: inline-block;
  position: relative;
  vertical-align: middle;
  margin-left: 6px;
}

.anki-button {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent-strong);
  font-size: 1rem;
  line-height: 1;
  cursor: pointer;
  list-style: none;
}

.anki-button::-webkit-details-marker {
  display: none;
}

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

.anki-button:disabled {
  opacity: 0.4;
  cursor: default;
}

.anki[data-state='present'] .anki-button {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.anki[data-state='error'] .anki-button {
  color: #c0392b;
}

.anki-menu-items {
  position: absolute;
  z-index: 10;
  top: 30px;
  left: 0;
  display: flex;
  flex-direction: column;
  min-width: 150px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 4px 12px rgb(0 0 0 / 0.15);
  overflow: hidden;
}

.anki-menu-items button {
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 8px 12px;
  text-align: left;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}

.anki-menu-items button:hover {
  background: var(--accent-soft);
}

.entry-head .anki {
  display: block;
  margin: 8px 0 0;
}

/* ---- results ---- */

.content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 8px 16px 48px;
  min-height: 50vh;
}

.content[aria-busy='true'] {
  opacity: 0.6;
  transition: opacity 0.2s 0.15s;
}

.columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 40px;
  align-items: start;
}

.columns > :only-child {
  grid-column: 1 / -1;
}

.results-heading {
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
  margin: 12px 0 0;
}

.results-heading .count,
.results-heading .searched-as {
  font-weight: 400;
}

.no-results,
.error {
  color: var(--muted);
  padding: 24px 0;
}

/* sentence */

.sentence {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 8px 0 16px;
  padding: 12px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 1.4rem;
}

.token {
  padding: 2px 6px;
  border-radius: 6px;
}

a.token {
  color: var(--text);
  border-bottom: 2px solid var(--accent);
  border-radius: 6px 6px 0 0;
}

a.token:hover {
  text-decoration: none;
  background: var(--accent-soft);
}

a.token.selected {
  background: var(--accent);
  color: #fff;
}

.token.unknown {
  color: var(--muted);
}

/* sentence words */

.sentence rt {
  font-size: 0.5em;
}

.sentence-word {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 16px;
}

.sentence-word:target {
  background: linear-gradient(90deg, var(--accent-soft), transparent 60%);
}

.sentence-word-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
}

.sentence-word-text {
  font-size: 1.6rem;
  line-height: 1.4;
}

.sentence-word-head .badge {
  margin-top: 0;
}

.dictionary-form {
  font-size: 1.1rem;
  color: var(--muted);
}

.dictionary-form a {
  color: var(--text);
}

.chain {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.compact-senses {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
}

.compact-senses li {
  margin: 2px 0;
}

.compact-senses .pos {
  margin-top: 6px;
}

.word-details {
  margin-top: 6px;
}

.word-details > summary {
  color: var(--link);
  cursor: pointer;
  font-size: 0.85rem;
}

.word-details .entry {
  padding: 12px 0 12px 12px;
  border-bottom: 0;
  border-left: 2px solid var(--border);
  margin-top: 8px;
}

/* entries */

.entry {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.headword {
  font-size: 2rem;
  line-height: 1.3;
  word-break: keep-all;
  overflow-wrap: anywhere;
}

.headword a {
  color: var(--text);
}

.headword a:hover {
  text-decoration: none;
  color: var(--accent-strong);
}

ruby rt {
  font-size: 0.45em;
  color: var(--muted);
}

.badge {
  display: inline-block;
  margin-top: 8px;
  padding: 1px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge.common {
  background: var(--accent);
  color: #fff;
}

.inflection {
  margin: 0 0 8px;
  padding: 6px 10px;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 6px 6px 0;
  font-size: 0.9rem;
}

.inflection .chain {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.senses {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sense {
  margin-bottom: 10px;
}

.pos {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  margin-top: 4px;
}

.sense-num {
  color: var(--faint);
}

.glosses {
  font-size: 1.1rem;
}

.sense-tags,
.sense-info {
  color: var(--muted);
  font-size: 0.85rem;
  margin-left: 8px;
}

.sense-tags {
  font-style: italic;
}

.examples {
  margin: 4px 0 0 18px;
  font-size: 0.9rem;
}

.examples summary {
  color: var(--link);
  cursor: pointer;
  font-size: 0.8rem;
}

.examples ul {
  list-style: none;
  padding: 0;
  margin: 4px 0;
}

.example p {
  margin: 0;
}

.example-ja {
  font-size: 1.05rem;
}

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

mark {
  background: var(--mark);
  color: inherit;
  border-radius: 2px;
}

.other-forms p {
  margin: 0;
}

.more-words {
  display: block;
  margin: 20px 0;
  padding: 10px;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

/* kanji sidebar */

.kanji-card {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

.kanji-char {
  font-size: 3.2rem;
  line-height: 1;
  text-align: center;
}

.kanji-char a {
  color: var(--text);
}

.kanji-meanings {
  margin: 0 0 4px;
  font-weight: 600;
  font-size: 1rem;
}

.kanji-readings {
  margin: 2px 0;
}

.label {
  color: var(--muted);
  margin-right: 4px;
}

.kanji-stats,
.kanji-parts {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}

/* stroke order */

.stroke-order {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.stroke-frame {
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg);
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.stroke-guide {
  stroke: var(--border);
  stroke-width: 1;
  stroke-dasharray: 3 3;
}

.stroke-done {
  stroke: var(--faint);
  stroke-width: 4;
}

.stroke-current {
  stroke: #d9412b;
  stroke-width: 5;
}

.stroke-start {
  fill: #d9412b;
  opacity: 0.5;
}

/* home */

.home {
  max-width: 640px;
  padding: 24px 0;
}

.intro {
  font-size: 1.1rem;
}

.examples-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 8px;
}

.examples-list li {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.examples-list a {
  font-size: 1.15rem;
}

.hint {
  color: var(--muted);
  font-size: 0.85rem;
}

/* footer & about */

.site-footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 40px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.8rem;
}

.site-footer p {
  margin: 4px 0;
}

.prose {
  max-width: 720px;
}

.prose h1 {
  font-size: 1.6rem;
}

.prose h2 {
  font-size: 1.15rem;
  margin-top: 28px;
}

.prose table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.9rem;
}

.prose th,
.prose td {
  text-align: left;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

/* ---- small screens ---- */

@media (max-width: 800px) {
  .columns {
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
  }

  .entry {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }
}

@media (max-width: 560px) {
  .site-header {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .search input {
    font-size: 1.1rem;
  }

  .search button {
    padding: 0 10px;
  }
}