/*
 * Manga style catalogue: white paper, black ink, grey screentone.
 * The only colour is the focus outline. Mobile first; wider layouts are in
 * the media queries near the end.
 */

:root {
  --paper: #fff;
  --ink: #111;
  --ink-soft: #3d3d3d;
  --ink-muted: #595959;
  --grey-1: #f3f3f3;
  --grey-2: #dcdcdc;
  --tone-bg: #ebebeb;
  --tone-dot: #9a9a9a;
  --focus: #0a5cff;
  --tap: 2.75rem;
  --radius: .375rem;
  color-scheme: light;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: system-ui, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  overflow-wrap: break-word;
}

::selection {
  background: var(--ink);
  color: var(--paper);
}

h1,
h2 {
  margin: 0 0 .5em;
  font-weight: 800;
  line-height: 1.35;
  word-break: auto-phrase;
  overflow-wrap: anywhere;
}

h1 {
  font-size: 1.625rem;
}

h2 {
  padding-left: .5rem;
  border-left: .375rem solid var(--ink);
  font-size: 1.1875rem;
}

p {
  margin: 0 0 1em;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration-thickness: .08em;
  text-underline-offset: .2em;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

/* Frame: header, breadcrumb, main, footer */

.wrap {
  width: 100%;
  max-width: 75rem;
  margin-right: auto;
  margin-left: auto;
  padding-right: 1rem;
  padding-left: 1rem;
}

main {
  flex: 1 0 auto;
  padding-top: 1.25rem;
  padding-bottom: 3rem;
}

.site-header {
  border-bottom: 3px solid var(--ink);
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .25rem .75rem;
  min-height: 3.75rem;
  padding-top: .25rem;
  padding-bottom: .25rem;
}

.site-name {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  font-size: 1.125rem;
  font-weight: 800;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
}

.lang-switch {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  min-width: var(--tap);
  min-height: var(--tap);
  padding: 0 1rem;
  border: 2px solid var(--ink);
  border-radius: 999px;
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0;
  padding: .25rem 0 0;
  list-style: none;
  font-size: .875rem;
  line-height: 1.4;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  min-width: 0;
}

.breadcrumb a,
.breadcrumb [aria-current="page"] {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  overflow-wrap: anywhere;
}

.breadcrumb [aria-current="page"] {
  font-weight: 700;
}

.breadcrumb .sep {
  margin: 0 .625em;
  color: var(--ink-muted);
}

.site-footer {
  border-top: 3px solid var(--ink);
  color: var(--ink-soft);
  font-size: .8125rem;
}

.site-footer .wrap {
  padding-top: 1.25rem;
  padding-bottom: 2rem;
}

.site-footer p {
  margin: 0;
}

.site-footer .footer-api {
  margin-bottom: .75rem;
  font-size: .9375rem;
  font-weight: 700;
}

.site-footer .footer-api a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
}

/* API guide (/api) */
.api-doc {
  max-width: 48rem;
}

.api-doc section {
  margin-top: 2rem;
}

.api-doc pre {
  margin: 0 0 .75rem;
  padding: .625rem .875rem;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--grey-1);
  /* 長い URL もスマホの幅で折り返して、横にスクロールしなくても全部読めるようにする */
  white-space: pre-wrap;
}

.api-doc code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .9375rem;
  overflow-wrap: anywhere;
}

.api-doc ol,
.api-doc ul {
  margin: 0 0 1em;
  padding-left: 1.5rem;
}

.api-doc li + li {
  margin-top: .375rem;
}

.api-doc .fields dt {
  margin-top: .875rem;
  font-weight: 700;
}

.api-doc .fields dd {
  margin: .125rem 0 0;
  color: var(--ink-soft);
}

.api-doc .examples a {
  display: inline-block;
  padding: .25rem 0;
}

/* Buttons, read-only fields and copy messages */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: .5rem 1.25rem;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.button-primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 4px 4px 0 var(--tone-dot);
}

.button-large {
  width: 100%;
  min-height: 3.5rem;
  padding: .75rem 1.5rem;
  font-size: 1.125rem;
}

.field-label {
  font-size: .875rem;
  font-weight: 700;
}

.url-input,
.prompt-text {
  display: block;
  width: 100%;
  min-width: 0;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--grey-1);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  overflow-wrap: anywhere;
  -webkit-appearance: none;
  appearance: none;
}

.url-input {
  min-height: var(--tap);
  padding: .5rem .75rem;
}

.prompt-text {
  min-height: 10rem;
  padding: .75rem .875rem;
  line-height: 1.7;
  resize: vertical;
}

.copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem 1rem;
  margin-top: .75rem;
}

.copy-status {
  justify-self: start;
  font-size: .875rem;
  font-weight: 700;
  line-height: 1.5;
}

/* A small speech balloon while a message is shown. */
.copy-status:not(:empty) {
  padding: .25rem .875rem;
  border: 2px solid var(--ink);
  border-radius: 1.25rem;
  background: var(--paper);
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.card-grid > li {
  display: flex;
  min-width: 0;
}

.card {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  min-width: 0;
  border: 2px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
}

.card-thumb {
  display: block;
  position: relative;
  flex: none;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-bottom: 2px solid var(--ink);
  background-color: var(--grey-1);
}

.card-thumb img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card-body {
  display: flex;
  flex: 1 1 auto;
  flex-direction: column;
  gap: .25rem;
  padding: .5rem .625rem .625rem;
}

.card-title {
  font-size: .9375rem;
  font-weight: 800;
  line-height: 1.4;
  word-break: auto-phrase;
  overflow-wrap: anywhere;
}

.card-path {
  font-size: .75rem;
  font-weight: 700;
  line-height: 1.4;
  overflow-wrap: anywhere;
}

.card-summary {
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  color: var(--ink-soft);
  font-size: .8125rem;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.card-count {
  align-self: flex-start;
  margin-top: auto;
  padding: 0 .5rem;
  border: 1px solid var(--ink);
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 700;
  line-height: 1.6;
}

/* Screentone: grey dots on light grey (45° grid), fading out towards the top left. */
.tone,
.error-panel::before {
  background-color: var(--tone-bg);
  background-image:
    linear-gradient(160deg, rgba(255, 255, 255, .8), rgba(255, 255, 255, 0) 60%),
    radial-gradient(circle, var(--tone-dot) 1.5px, transparent 2px),
    radial-gradient(circle, var(--tone-dot) 1.5px, transparent 2px);
  background-position: 0 0, 0 0, 5px 5px;
  background-size: 100% 100%, 10px 10px, 10px 10px;
}

/* Top page */

.intro {
  margin-bottom: 1.5rem;
}

.lead {
  margin: 0;
  color: var(--ink-soft);
}

/* Explanatory samples keep their original framing; thumbnails alone use a padded 3:4 box. */
.sample-pair { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.5rem; }
.sample-pair figure { min-width: 0; margin: 0; }
.sample-pair figcaption { font-weight: 700; margin-top: .5rem; }
.sample-pair .sample-image { width: 100%; height: auto; }
@media (min-width: 48em) {
  .sample-pair { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
  .node.has-sample.has-pair {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    grid-template-areas: "sample sample" "prompt actions";
    grid-template-rows: auto auto;
  }
}

/* Style page */

.node {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.75rem;
}

.level-label {
  display: inline-block;
  margin: 0 0 .5rem;
  padding: .125rem .625rem;
  background: var(--ink);
  color: var(--paper);
  font-size: .8125rem;
  font-weight: 700;
  line-height: 1.6;
}

.node-summary {
  margin: 0;
  color: var(--ink-soft);
}

/* The category path right above the title and the id below it: a title alone does not identify a style. */
.node-path ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  margin: 0 0 .125rem;
  padding: 0;
  list-style: none;
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.5;
}

.node-path li {
  display: flex;
  align-items: center;
  min-width: 0;
}

.node-path a,
.node-path [aria-current="page"] {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  overflow-wrap: anywhere;
}

.node-path .sep {
  margin: 0 .5em;
}

.node-path .sep,
.card-path {
  color: var(--ink-muted);
}

.node-id {
  margin: .5rem 0 0;
  color: var(--ink-soft);
  font-size: .875rem;
}

.node-id code,
.same-title-list code {
  overflow-wrap: anywhere;
}

/* The same-name notice sits in the bottom section, under the API URL (the owner's request, 2026-09-28). */
.same-title-notice {
  margin: 0 0 .75rem;
  padding: .5rem .75rem;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  font-size: .9375rem;
  font-weight: 700;
}

.same-title {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 3px solid var(--ink);
}

.same-title-list {
  margin: 0;
  padding-left: 1.25rem;
}

.same-title-list li {
  margin: .25rem 0;
}

.same-title-list a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  overflow-wrap: anywhere;
}

.copy-note,
.use-style-note,
.search-hint {
  margin: .5rem 0 0;
  color: var(--ink-soft);
  font-size: .875rem;
}

.use-style {
  margin-bottom: 1.5rem;
}

/* Hidden field used for a moment by the copy buttons (older browsers). */
.copy-scratch {
  position: fixed;
  top: 0;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.header-links {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: flex-end;
  gap: .5rem;
  margin-left: auto;
}

.header-search {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap);
  padding: 0 .5rem;
  font-size: .9375rem;
  font-weight: 700;
}

.search-form {
  margin: 0 0 1.5rem;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: .5rem;
  align-items: center;
}

.search-input {
  width: 100%;
  min-height: var(--tap);
  padding: .5rem .75rem;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font: inherit;
}

.search-results h2 {
  margin-top: .5rem;
}

.url-field {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .5rem;
}

.url-field .field-label,
.url-field .copy-status {
  grid-column: 1 / -1;
}

.sample-image {
  width: 100%;
  border: 2px solid var(--ink);
  background: var(--tone-bg);
}

.sample-figure {
  margin: 0;
}

.sample-figure figcaption {
  margin-top: .375rem;
  font-size: .875rem;
  font-weight: 700;
}

/* The sample and the comparison picture side by side (two columns already on a phone: 3:4 pictures
   of about 170px each are enough to see the difference, and the reader never scrolls between them). */
.compare-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}

.compare-note,
.compare-how {
  margin: .5rem 0 0;
  color: var(--ink-soft);
  font-size: .8125rem;
  overflow-wrap: anywhere;
}

.no-sample {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 9rem;
  padding: 1rem;
  border: 2px solid var(--ink);
}

.no-sample p {
  margin: 0;
  padding: .5rem 1.25rem;
  border: 2px solid var(--ink);
  border-radius: 1.5rem;
  background: var(--paper);
  font-weight: 700;
  text-align: center;
}

.tags {
  margin: 1.25rem 0 0;
  font-size: .875rem;
}

.tags dt {
  font-weight: 700;
}

.tags dd {
  margin: .25rem 0 0;
  color: var(--ink-soft);
  overflow-wrap: anywhere;
}

.sample-prompt {
  margin-top: 1.25rem;
  border: 2px solid var(--ink);
  border-radius: var(--radius);
}

.sample-prompt summary {
  min-height: var(--tap);
  padding: .625rem .875rem;
  font-weight: 700;
  line-height: 1.5;
  cursor: pointer;
}

.sample-prompt[open] summary {
  border-bottom: 2px solid var(--ink);
}

.sample-prompt p {
  margin: 0;
  padding: .75rem .875rem;
  font-size: .9375rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.node-head {
  margin-bottom: 1.5rem;
}

.children {
  margin: 0 0 2rem;
}

/* The prompt and the API URL come after the choices, separated by a rule. */
.children + .node {
  padding-top: 1.5rem;
  border-top: 3px solid var(--ink);
}

.children-note {
  color: var(--ink-soft);
}

/* Prompt language switch (日本語 / English) */
.prompt-langs ul {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0 0 .75rem;
  padding: 0;
  list-style: none;
}

.prompt-lang {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 6.5rem;
  min-height: var(--tap);
  padding: .25rem 1rem;
  border: 2px solid var(--ink);
  border-radius: 999px;
  font-size: .9375rem;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
}

.prompt-lang.current {
  background: var(--ink);
  color: var(--paper);
}

/* Error page */

.error-panel {
  max-width: 36rem;
  margin: 1rem auto;
  padding: 0 1.5rem 1.5rem;
  border: 3px solid var(--ink);
  box-shadow: 6px 6px 0 var(--ink);
}

.error-panel::before {
  content: "";
  display: block;
  height: 3.5rem;
  margin: 0 -1.5rem 1.25rem;
  border-bottom: 3px solid var(--ink);
}

.error-panel p:last-child {
  margin-bottom: 0;
}

/* Hover only with a real pointer, so a tap does not leave it stuck. */
@media (hover: hover) {
  a:hover {
    text-decoration-thickness: .15em;
  }

  .site-name:hover {
    text-decoration: underline;
  }

  .lang-switch:hover {
    background: var(--ink);
    color: var(--paper);
  }

  .button:hover {
    background: var(--grey-1);
  }

  .button-primary:hover {
    background: #333;
  }

  .card:hover {
    box-shadow: 4px 4px 0 var(--ink);
  }

  .card:hover .card-title {
    text-decoration: underline;
  }
}

.button:active {
  background: var(--grey-2);
}

.button-primary:active {
  background: #000;
  box-shadow: none;
}

@media (min-width: 30em) {
  .url-field {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 36em) {
  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }
}

@media (min-width: 40em) {
  .wrap {
    padding-right: 1.5rem;
    padding-left: 1.5rem;
  }
}

/* Wide screens */
@media (min-width: 48em) {
  main {
    padding-top: 2rem;
  }

  h1 {
    font-size: 2.125rem;
  }

  h2 {
    font-size: 1.3125rem;
  }

  /* The sample on the left; the prompt and, below it, the API URL on the right. */
  .node.has-sample {
    grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
    grid-template-rows: auto 1fr;
    grid-template-areas:
      "sample prompt"
      "sample actions";
    gap: 1.5rem 2.5rem;
    align-items: start;
  }

  /* With a comparison the sample column holds two pictures: give it half of the width. */
  .node.has-sample.has-compare {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .node.has-sample .sample {
    grid-area: sample;
  }

  .node.has-sample .prompt {
    grid-area: prompt;
  }

  .node.has-sample .actions {
    grid-area: actions;
  }

  .no-sample {
    aspect-ratio: 3 / 4;
  }

  .button-large {
    width: auto;
    min-width: 18rem;
  }
}

@media (min-width: 54em) {
  .card-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 70em) {
  .card-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}