/* BUREAU */

* {
  box-sizing: border-box;
}

:root {
  --bureau-green: #225e57;
  --field-bg: var(--bureau-green);
  --field-ink: #ffffff;
  --window-bg: #ffffff;
  --window-ink: var(--bureau-green);
  --window-border: #ffffff;
  --font-family: Arial, sans-serif;
  --text-size: clamp(1.04rem, 0.245vw + 0.98rem, 1.28rem);
  --nav-size: var(--text-size);
  --text-line: 167%;
  --page-pad-x: max(1.25rem, env(safe-area-inset-left));
  --page-pad-y: max(1.25rem, env(safe-area-inset-top));
  --page-pad-right: max(1.25rem, env(safe-area-inset-right));
  --content-width: 780px;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background-color: var(--field-bg);
  min-height: 100%;
  min-height: 100dvh;
  line-break: strict;
  overflow-wrap: break-word;
  hanging-punctuation: allow-end;
}

h1,
h2,
h3 {
  word-break: auto-phrase;
}

::selection {
  background: var(--bureau-green);
  color: #ffffff;
}

::-moz-selection {
  background: var(--bureau-green);
  color: #ffffff;
}

a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

.site-nav ::selection,
.game-screen ::selection {
  background: var(--field-ink);
  color: var(--field-bg);
}

html,
body {
  margin: 0;
  padding: 0;
  background-color: var(--field-bg);
  min-height: 100%;
  min-height: 100dvh;
}

body {
  font-family: var(--font-family);
}

#about-text {
  padding: var(--page-pad-y) var(--page-pad-right) max(1.25rem, env(safe-area-inset-bottom)) var(--page-pad-x);
  overflow: auto;
  width: 100%;
  min-height: 100dvh;
  background-color: var(--field-bg);
}

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

.chat-log {
  max-width: var(--content-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chat-message {
  border: 2px solid var(--window-border);
  padding: 1rem 1.25rem;
  background: var(--window-bg);
}

.chat-body {
  font-size: var(--text-size);
  line-height: var(--text-line);
  color: var(--window-ink);
  text-wrap: pretty;
}

.chat-body p,
.chat-body a,
.chat-body h1,
.chat-body h2,
.chat-body h3 {
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

.chat-body h1,
.chat-body h2 {
  margin: 0;
}

.chat-body h2 + p,
.chat-body h2 + .work-list {
  margin-top: 0.75rem;
}

.chat-body a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.chat-body p {
  margin: 0;
}

.chat-body > p + p {
  margin-top: 1.25rem;
}

.chat-body h1 + p {
  margin-top: 0.75rem;
}

.chat-body summary {
  cursor: pointer;
}

.chat-body summary + p {
  margin-top: 0.75rem;
}

body.work .work-heading {
  margin: 0;
}

body.work .work-meta {
  font-size: inherit;
  line-height: inherit;
}

.site-nav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  font-size: var(--nav-size);
  line-height: var(--text-line);
  color: var(--field-ink);
}

.site-nav a {
  color: var(--field-ink);
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.site-nav-end {
  justify-content: flex-end;
}

.work-index-header {
  display: flex;
  flex-wrap: nowrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem 1rem;
}

.work-index-header h1 {
  margin: 0;
  flex-shrink: 0;
}

.work-index-section + .work-index-section {
  margin-top: 1.25rem;
}

.work-index-many .chat-message:nth-child(1) {
  padding-bottom: 0.75rem;
}

.work-index-many .chat-message:nth-child(2) {
  margin-top: calc(-1rem - 2px);
  border-top: 0;
  padding-top: 0;
}

.work-list {
  margin: 0;
  padding: 0;
}

.work-list-item + .work-list-item {
  margin-top: 0.65rem;
}

#work-list-empty {
  margin: 0;
}

.work-list-note {
  margin: 0.75rem 0 0;
  font-size: var(--nav-size);
  line-height: var(--text-line);
}

.work-sort {
  display: flex;
  flex-wrap: nowrap;
  align-items: baseline;
  justify-content: flex-end;
  flex-shrink: 0;
  gap: 0.35rem 0.65rem;
  margin-left: auto;
  font-size: var(--nav-size);
  line-height: var(--text-line);
  white-space: nowrap;
}

.work-sort[hidden] {
  display: none !important;
}

.work-sort button {
  font: inherit;
  line-height: inherit;
  color: var(--field-ink);
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.work-sort button[aria-pressed='true'] {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.work-sort button:focus {
  outline: none;
}

.work-sort button:focus-visible {
  outline: 2px solid var(--bureau-green);
  outline-offset: 2px;
}

.work-list a {
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.work-list-date {
  margin-left: 0.35em;
  text-decoration: none;
}

.work-list-number {
  margin-right: 0.5em;
  font-variant-numeric: tabular-nums;
}

.site-nav-work {
  justify-content: space-between;
}

.site-nav-work .work-nav-start,
.site-nav-work .work-nav-end {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem 1rem;
}

.site-nav-work .work-nav-end {
  justify-content: flex-end;
  text-align: right;
}

.work-nav-prev[hidden],
.work-nav-next[hidden] {
  display: none !important;
}

.work-nav-prev,
.work-nav-next {
  transition: opacity 0.15s ease;
}

.work-nav-prev.work-nav-pressed,
.work-nav-next.work-nav-pressed {
  opacity: 0.55;
}

/* 作品本文 — 形式別（docs/work-formats.txt を参照） */

body.work .work-body {
  --work-block-gap: 1.25rem;
}

body.work .work-body h2,
body.work .work-body h3 {
  margin: 0;
  font-weight: inherit;
}

body.work .work-body h2 + *,
body.work .work-body h3 + * {
  margin-top: 0.75rem;
}

body.work .work-body em {
  font-style: italic;
}

body.work .work-body ruby {
  ruby-position: over;
}

body.work .work-body a {
  color: inherit;
}

/* エッセイ（散文） */

body.work .work-format-essay > * + * {
  margin-top: var(--work-block-gap);
}

body.work .work-format-essay h2 {
  margin-top: 2rem;
}

body.work .work-format-essay h2:first-child {
  margin-top: 0;
}

body.work .work-format-essay h3 {
  margin-top: 1.5rem;
}

/* 詩 */

body.work .work-format-poetry {
  --work-block-gap: 0;
}

body.work .work-format-poetry .work-stanza + .work-stanza {
  margin-top: 1.25rem;
}

body.work .work-format-poetry .work-line {
  margin: 0;
  white-space: pre-wrap;
}

body.work .work-format-poetry .work-line + .work-line {
  margin-top: 0.15rem;
}

body.work .work-format-poetry .work-poem-note {
  margin-top: 1.25rem;
  font-size: var(--nav-size);
}

/* 短歌 */

body.work .work-format-tanka .work-tanka {
  margin: 0;
}

body.work .work-format-tanka .work-tanka + .work-tanka {
  margin-top: 1.25rem;
}

body.work .work-format-tanka .work-tanka-line {
  margin: 0;
  white-space: pre-wrap;
}

body.work .work-format-tanka .work-tanka-line + .work-tanka-line {
  margin-top: 0.15rem;
}

/* 俳句（詩・短歌テンプレート内でも使用可） */

body.work .work-haiku .work-haiku-line {
  margin: 0;
  white-space: pre-wrap;
}

body.work .work-haiku .work-haiku-line + .work-haiku-line {
  margin-top: 0.15rem;
}

body.work .work-haiku + .work-haiku {
  margin-top: 1.25rem;
}

/* 小説 */

body.work .work-format-novel p {
  margin: 0;
}

body.work .work-format-novel .work-paragraph + .work-paragraph,
body.work .work-format-novel .work-paragraph + .work-dialogue,
body.work .work-format-novel .work-dialogue + .work-paragraph,
body.work .work-format-novel .work-dialogue + .work-dialogue,
body.work .work-format-novel .work-scene-break + *,
body.work .work-format-novel * + .work-scene-break {
  margin-top: var(--work-block-gap);
}

body.work .work-format-novel .work-dialogue-speaker {
  margin: 0 0 0.15rem;
  font-size: var(--nav-size);
}

body.work .work-format-novel .work-scene-break {
  margin: 0;
  text-align: center;
}

/* 評論 */

body.work .work-format-criticism > * + * {
  margin-top: var(--work-block-gap);
}

body.work .work-format-criticism h2 {
  margin-top: 2rem;
}

body.work .work-format-criticism h2:first-child {
  margin-top: 0;
}

body.work .work-format-criticism .work-scene-break {
  text-align: center;
}

body.work .work-format-criticism .work-quote {
  margin: 0;
  padding: 0 0 0 1rem;
  border-left: 2px solid var(--bureau-green);
}

body.work .work-format-criticism .work-quote + .work-citation {
  margin-top: 0.5rem;
  font-size: var(--nav-size);
}

body.work .work-format-criticism .work-note {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--bureau-green);
  font-size: var(--nav-size);
}

body.work .work-format-criticism .work-note ol {
  margin: 0.5rem 0 0;
  padding-left: 1.5rem;
}

body.work .work-format-criticism .work-note li + li {
  margin-top: 0.35rem;
}

body.work .work-format-criticism .work-note-ref a {
  text-decoration: none;
}

body.work .work-format-criticism .work-note-return {
  margin-right: 0.35em;
  text-decoration: none;
}

body.work .work-format-criticism .work-note li,
body.work .work-format-criticism .work-note-ref a {
  transition: background-color 0.3s ease;
}

body.work .work-format-criticism .work-note li:target,
body.work .work-format-criticism .work-note-ref a:target {
  background-color: rgba(34, 94, 87, 0.14);
}

@media (prefers-reduced-motion: reduce) {
  body.work .work-format-criticism .work-note li,
  body.work .work-format-criticism .work-note-ref a {
    transition: none;
  }
}

/* 日記 */

body.work .work-format-diary .work-diary-entry + .work-diary-entry {
  margin-top: 2rem;
}

body.work .work-format-diary .work-diary-date {
  margin: 0 0 0.75rem;
  font-size: var(--nav-size);
}

body.work .work-format-diary .work-diary-entry p {
  margin: 0;
}

body.work .work-format-diary .work-diary-entry p + p {
  margin-top: var(--work-block-gap);
}

/* その他 */

body.work .work-format-other .work-passage + .work-passage {
  margin-top: var(--work-block-gap);
}

body.work .work-format-criticism .work-quote p {
  margin: 0;
}

body.work .work-format-other ul {
  margin: 0;
  padding-left: 1.5rem;
}

body.work .work-format-other .work-passage > * + * {
  margin-top: 0.75rem;
}

body.work .work-format-other .work-passage > *:first-child {
  margin-top: 0;
}

body.work .work-format-other pre {
  margin: 0;
  font: inherit;
  line-height: var(--text-line);
  white-space: pre-wrap;
  word-break: break-word;
}

@media screen and (min-width: 769px) {
  :root {
    --content-width: 820px;
  }
}

@media screen and (max-width: 768px) {
  :root {
    --text-size: clamp(0.94rem, 0.18vw + 0.88rem, 1.06rem);
  }

  .chat-message {
    padding: 0.875rem 1rem;
  }
}

body.home:not(.typed) {
  overflow: hidden;
  height: 100%;
  touch-action: manipulation;
}

.blink {
  animation: game-blink 1.1s ease-in-out infinite;
}

@keyframes game-blink {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.2;
  }
}

.game-screen {
  position: fixed;
  inset: 0;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100dvh;
  padding:
    max(1.25rem, env(safe-area-inset-top))
    max(1.25rem, env(safe-area-inset-right))
    max(1.25rem, env(safe-area-inset-bottom))
    max(1.25rem, env(safe-area-inset-left));
  box-sizing: border-box;
  background-color: var(--field-bg);
  color: var(--field-ink);
}

.game-screen .title-art {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.game-stage {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  width: 100%;
  max-width: var(--content-width);
}

body.home:not(.game-started) .game-screen .chat-message {
  visibility: hidden;
}

.game-title-name {
  position: fixed;
  left: var(--page-pad-x);
  bottom: max(1.25rem, env(safe-area-inset-bottom));
  margin: 0;
  font-size: var(--nav-size);
  line-height: var(--text-line);
  letter-spacing: 0.12em;
  color: var(--field-ink);
}

.game-screen .chat-message {
  max-height: calc(100dvh - 5rem - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  overflow: hidden;
}

.game-screen .chat-body {
  max-height: calc(100dvh - 7.5rem - env(safe-area-inset-top) - env(safe-area-inset-bottom));
  min-height: 1.67em;
  min-height: 1lh;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.game-screen .chat-body:empty::before {
  content: '\200b';
}

.dialogue-next {
  margin: 0;
  text-align: right;
  font-size: var(--text-size);
  line-height: var(--text-line);
  color: var(--field-ink);
}

.game-screen .dialogue-next[hidden] {
  display: block !important;
  visibility: hidden;
}

.game-input {
  position: fixed;
  inset: 0;
  z-index: 6;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: transparent;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.game-input:focus,
.game-input:focus-visible,
.game-input:active {
  background: transparent;
  outline: none;
}

body.home.typed .game-input,
body.home.typed .game-screen {
  display: none;
}

body.home.typed {
  touch-action: auto;
}

@media (prefers-reduced-motion: reduce) {
  .blink {
    animation: none;
  }

  .game-screen,
  .game-input {
    display: none;
  }
}

/* X 添付画像用（/x/remind/）— トップの会話画面を静止した1コマとして 1200×630（og-image と同比率）に収める */
html:has(body.x-remind) {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100dvh;
}

body.x-remind {
  position: relative;
  margin: 0;
  padding: 0;
  width: 1200px;
  height: 630px;
  overflow: hidden;
  --text-size: 1.3125rem;
  --content-width: 860px;
}

body.x-remind .game-screen {
  position: absolute;
  inset: 0;
  min-height: 0;
  padding: 2.75rem 3.25rem;
}

body.x-remind .game-stage {
  gap: 1.125rem;
}

body.x-remind .game-screen .chat-message,
body.x-remind .game-screen .chat-body {
  max-height: none;
  overflow: visible;
}

body.x-remind .chat-body > p + p {
  margin-top: 0.875rem;
}

/* 静止画なので ▼ は点滅させず出しっぱなしにする */
body.x-remind .blink {
  animation: none;
}

@media (prefers-reduced-motion: reduce) {
  body.x-remind .game-screen {
    display: flex;
  }
}

@media print {
  .site-nav,
  .work-sort,
  .game-screen,
  .game-input {
    display: none !important;
  }

  html,
  body,
  .chat-message {
    background: #ffffff !important;
  }

  .chat-body {
    color: #000000 !important;
  }

  .chat-message {
    border: none;
    padding: 0;
  }

  .chat-log {
    gap: 1.5rem;
  }
}