* { box-sizing: border-box; }

html {
  min-width: 320px;
  min-height: 100%;
  background: #000;
  color-scheme: dark;
  /* Silver-ratio rhythm: each second step is approximately x1.414. */
  --font-size-meta: 10px;
  --font-size-small: 12px;
  --font-size-base: 14px;
  --font-size-emphasis: 17px;
  --font-size-display: 20px;
  --line-height-base: 1.414;
  --space-3xs: 2px;
  --space-2xs: 3px;
  --space-xs: 4px;
  --space-sm: 6px;
  --space-md: 8px;
  --space-lg: 11px;
  --space-xl: 16px;
  --space-2xl: 23px;
  --space-3xl: 32px;
  --space-4xl: 45px;
  --control-height: 32px;
  --angora-font-family: "MS PGothic", "ＭＳ Ｐゴシック", Osaka, Arial, sans-serif;
}

html[data-font="gothic"] {
  --angora-font-family: system-ui, "Yu Gothic", "游ゴシック", Meiryo, sans-serif;
}

html[data-font="mincho"] {
  --angora-font-family: "Yu Mincho", "游明朝", "Hiragino Mincho ProN", serif;
}

html[data-font="monospace"] {
  --angora-font-family: "MS Gothic", "ＭＳ ゴシック", Osaka-Mono, monospace;
}

body {
  min-height: 100vh;
  margin: 0;
  color: #d7d7d7;
  background: #000;
  font-family: var(--angora-font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
}

a {
  color: #eee;
  text-decoration: none;
}

a:visited { color: #eee; }
a:hover, a:focus { color: #fff; text-decoration: underline; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

:where(a, button, input, select, textarea, summary):focus-visible {
  outline: 1px dotted #bbb;
  outline-offset: var(--space-3xs);
}

main {
  position: relative;
  width: 100%;
  min-height: 100vh;
  padding: var(--space-xl);
  background: #000;
}

.account-link {
  position: absolute;
  top: var(--space-3xs);
  right: var(--space-xl);
  color: #aaa;
  font-size: var(--font-size-small);
  line-height: var(--font-size-base);
}

.account-link:visited { color: #aaa; }

.board-tools {
  position: absolute;
  top: var(--space-3xs);
  left: var(--space-xl);
  display: flex;
  gap: var(--space-lg);
  font-size: var(--font-size-small);
  line-height: var(--font-size-base);
}

.board-tools a { color: #aaa; }
.board-tools a:visited { color: #aaa; }

.site-nav {
  display: flex;
  min-height: 24px;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid #303030;
  color: #aaa;
  font-size: var(--font-size-small);
}

.site-nav a {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  color: #aaa;
}

.site-nav a:visited { color: #aaa; }

.site-footer {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  padding: var(--space-xl) 0 var(--space-xs);
  font-size: var(--font-size-small);
}

.site-footer a,
.site-footer a:visited {
  color: #aaa;
}

.topics {
  margin: 0;
  padding: 0;
  list-style: none;
  min-height: calc(100vh - var(--space-3xl));
  background: #161616;
  border-top: 1px solid #303030;
  border-right: 1px solid #303030;
  border-left: 1px solid #303030;
}

.topics li {
  position: relative;
  min-height: var(--space-4xl);
  padding: var(--space-sm) var(--space-lg);
  border-bottom: 1px solid #303030;
  background: #171717;
}

.topics li:nth-child(even) { background: #1a1a1a; }

.topics li:hover { background: #232323; }
.topics .empty-topic:hover { background: #171717; }

.title {
  min-height: var(--font-size-display);
  color: #e3e3e3;
  font-size: var(--font-size-base);
  line-height: var(--font-size-display);
}

.meta {
  margin-top: var(--space-3xs);
  color: #8e8e8e;
  font-family: Tahoma, Arial, "MS PGothic", sans-serif;
  font-size: var(--font-size-meta);
  line-height: var(--font-size-base);
}

.meta a {
  color: #aaa;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.mark {
  display: inline-block;
  width: var(--font-size-base);
  height: var(--font-size-base);
  border: 1px outset #777;
  color: #fff;
  background: #3b3b3b;
  font: bold var(--font-size-meta)/var(--font-size-small) Arial, sans-serif;
  text-align: center;
  vertical-align: 1px;
}

@media (max-width: 600px) {
  main { padding: var(--space-sm); }
  .account-link { right: var(--space-xs); }
  .board-tools { left: var(--space-xs); }
  .topics { min-height: calc(100vh - 20px); }
  .topics li { padding-right: var(--space-sm); padding-left: var(--space-md); }
}

.board-page [hidden] { display: none !important; }

.board-page button,
.board-page input,
.board-page select,
.board-page textarea {
  border-radius: 0;
  font: inherit;
}

.board-page button {
  min-height: var(--control-height);
  padding: var(--space-xs) var(--space-lg);
  border: 1px outset #777;
  color: #ddd;
  background: #333;
  cursor: pointer;
}

.board-page button:active { border-style: inset; }
.board-page button:disabled { color: #777; cursor: wait; }

.board-page input,
.board-page select,
.board-page textarea {
  border: 1px inset #555;
  color: #ddd;
  background: #080808;
}

.board-page input,
.board-page select { min-height: var(--control-height); padding: var(--space-xs) var(--space-sm); }

.board-page textarea {
  display: block;
  width: 100%;
  margin: var(--space-xs) 0 var(--space-sm);
  padding: var(--space-md);
  resize: vertical;
  tab-size: 4;
  white-space: pre-wrap;
}

.board-main {
  max-width: 980px;
  margin: 0 auto;
  padding-top: var(--space-xl);
}

.page-nav { flex-wrap: wrap; }

.legal-main { max-width: 760px; }

.legal-document { padding: var(--space-xl); }
.legal-document h1 { margin-bottom: var(--space-xs); }
.legal-document h2 {
  margin: var(--space-xl) 0 var(--space-sm);
  color: #ddd;
  font-size: var(--font-size-base);
}
.legal-document p,
.legal-document li { line-height: 1.7; }
.legal-document p { margin: 0 0 var(--space-md); }
.legal-document ul { margin: 0; padding-left: var(--space-2xl); }
.legal-date { color: #888; font-size: var(--font-size-small); }
.legal-operator { margin: 0; }
.legal-operator div { display: grid; grid-template-columns: 5em 1fr; gap: var(--space-md); }
.legal-operator dt { color: #888; }
.legal-operator dd { margin: 0; overflow-wrap: anywhere; }

.panel,
.thread-heading,
.reply-form {
  padding: var(--space-lg) var(--space-xl);
  border: 1px solid #303030;
  background: #171717;
}

.panel h1,
.thread-heading h1 {
  margin: 0 0 var(--space-lg);
  color: #e3e3e3;
  font-size: var(--font-size-base);
  line-height: var(--font-size-display);
}

.thread-og-image {
  display: block;
  width: 160px;
  height: 90px;
  float: right;
  margin-left: var(--space-lg);
  object-fit: cover;
  border: 1px solid #303030;
}

.panel label,
.reply-form > label {
  display: block;
  margin: var(--space-md) 0 var(--space-2xs);
  color: #aaa;
  font-size: var(--font-size-small);
}

#thread-title,
#search-query { width: min(620px, 100%); }

.hint,
.message,
.thread-heading p,
.archive-notice {
  color: #8e8e8e;
  font-size: var(--font-size-small);
  line-height: var(--font-size-base);
}

.message { min-height: var(--font-size-base); }
.message.error { color: #d88; }

.search-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin: var(--space-md) 0;
}

.search-options label { margin: 0; }
.search-options select { display: block; margin-top: var(--space-2xs); }

.ranking-panel { margin-bottom: var(--space-md); }
.ranking-periods { display: flex; gap: var(--space-sm); }
.ranking-periods button {
  min-width: var(--control-height);
  min-height: var(--space-2xl);
  padding: var(--space-2xs) var(--space-md);
}
.ranking-periods button[aria-pressed="true"] { border-style: inset; color: #fff; }
.ranking-position { color: #aaa; font-family: Tahoma, Arial, sans-serif; }

.search-results {
  margin: var(--space-md) 0 0;
  padding: 0;
  list-style: none;
}

.search-results li {
  padding: var(--space-md) var(--space-3xs);
  border-top: 1px solid #303030;
}

.result-meta {
  margin: var(--space-2xs) 0 0;
  color: #888;
  font-size: var(--font-size-small);
  line-height: var(--font-size-base);
}

.result-snippet {
  margin: var(--space-sm) 0 0;
  overflow: hidden;
  color: inherit;
  font: inherit;
  white-space: pre-wrap;
}

.thread-heading { margin-bottom: var(--space-md); }
.thread-heading h1 { margin-bottom: var(--space-xs); }
.thread-heading p { margin: 0; }
.part-nav { display: flex; flex-wrap: wrap; gap: var(--space-md); margin: 0 0 var(--space-md); font-size: var(--font-size-meta); }
.part-nav strong { color: #ddd; font-weight: normal; }
.archive-notice { margin: 0 0 var(--space-md); padding: var(--space-md) var(--space-lg); border: 1px solid #303030; }

.thread-actions,
.post-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-left: var(--space-md);
}

.thread-actions { margin: var(--space-sm) 0 0; }

.pending-thread-actions { gap: var(--space-lg); }

.board-page .thread-vote {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 0 var(--space-2xs);
  border: 0;
  background: transparent;
  font: inherit;
  font-size: var(--font-size-small);
  line-height: var(--font-size-base);
  text-decoration: none;
}

.board-page .white-flag { color: #aaa; }
.board-page .red-flag { color: #e05252; }
.board-page .thread-vote:hover,
.board-page .thread-vote:focus { color: #fff; text-decoration: underline; }
.board-page .thread-vote.selected { font-weight: bold; text-decoration: underline; }

.board-page .action-link {
  display: inline-flex;
  min-height: 24px;
  align-items: center;
  padding: 0 var(--space-2xs);
  border: 0;
  color: #aaa;
  background: transparent;
  font-size: var(--font-size-small);
  line-height: var(--font-size-base);
  text-decoration: none;
}

.board-page .action-link:hover,
.board-page .action-link:focus {
  color: #fff;
  text-decoration: underline;
}

.board-page .gold-flag { color: #d4af37; }
.board-page .white-rating { color: #ddd; }
.board-page .gold-flag:hover,
.board-page .gold-flag:focus { color: #f0d76a; }
.board-page .white-rating:hover,
.board-page .white-rating:focus { color: #fff; }
.board-page .action-link.selected { font-weight: bold; text-decoration: underline; }

.board-page .flag-link,
.board-page .flag-link:hover,
.board-page .flag-link:focus {
  color: #e05252;
}

.flag-hidden-notice {
  margin: 0;
  color: #888;
  font-size: var(--font-size-meta);
  line-height: var(--font-size-base);
}

.thread-heading + .flag-hidden-notice { margin: 0 0 var(--space-md); }

.flag-hidden-post { min-height: var(--space-3xl); }

.deleted-post {
  color: #777;
  font-style: italic;
}

.moderation-modal {
  position: fixed;
  z-index: 30;
  inset: 0;
  display: grid;
  place-items: center;
  padding: var(--space-lg);
  background: rgb(0 0 0 / 78%);
}

.moderation-dialog {
  width: min(430px, 100%);
  max-height: calc(100dvh - var(--space-3xl));
  overflow: auto;
  padding: var(--space-xl);
  border: 1px solid #555;
  background: #171717;
  box-shadow: 3px 3px 0 #000;
}

.moderation-dialog h2 { margin: 0 0 var(--space-md); font-size: var(--font-size-base); line-height: var(--font-size-display); }
.moderation-dialog > p { margin: 0 0 var(--space-md); color: #aaa; font-size: var(--font-size-meta); }
.moderation-dialog label { display: block; margin-bottom: var(--space-2xs); color: #aaa; font-size: var(--font-size-meta); }
.moderation-dialog textarea { margin-bottom: var(--space-xs); }
.moderation-buttons { display: flex; justify-content: flex-end; gap: var(--space-sm); }

.thread-posts {
  border-top: 1px solid #303030;
  border-right: 1px solid #303030;
  border-left: 1px solid #303030;
}

.thread-post {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid #303030;
  background: #171717;
}

.thread-post:nth-child(even) { background: #1a1a1a; }

.thread-post header {
  color: #999;
  font: 11px/16px Tahoma, Arial, sans-serif;
}

.post-number,
.post-identity { color: #aaa; }

.quote-link {
  margin-left: var(--space-sm);
  color: #aaa;
  font-size: var(--font-size-meta);
}

.quote-link:visited { color: #aaa; }
.quote-link:hover, .quote-link:focus { color: #fff; }

.post-body {
  margin: var(--space-sm) 0 0;
  overflow-x: auto;
  color: inherit;
  font: inherit;
  line-height: 1.5;
  tab-size: 4;
  white-space: pre-wrap;
  overflow-wrap: normal;
}

.post-body a { text-decoration: underline; text-underline-offset: 2px; }
.post-body .external-link { overflow-wrap: anywhere; }

.reply-form { margin-top: var(--space-md); }

#thread-title:focus,
#thread-body:focus,
#reply-body:focus {
  border-color: #555;
  box-shadow: none;
}

.reply-actions {
  display: flex;
  align-items: flex-end;
  flex-direction: column;
  gap: var(--space-xs);
  margin-top: var(--space-md);
}

.reply-actions button {
  width: 136px;
  min-height: var(--control-height);
  text-align: center;
}

.login-to-reply {
  margin: var(--space-md) 0 0;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid #303030;
  color: #8e8e8e;
  background: #171717;
  font-size: var(--font-size-meta);
  line-height: var(--font-size-base);
}

.login-to-reply a { margin: 0 var(--space-2xs); }

.external-link { text-decoration: underline; }

.post-image-link {
  display: block;
  width: fit-content;
  max-width: 100%;
  margin-top: var(--space-sm);
  line-height: 0;
}

.post-image-consent { display: block; margin-top: var(--space-sm); }
.board-page .image-consent { color: #888; }

.post-image {
  display: block;
  width: auto;
  height: auto;
  max-width: min(100%, 420px);
  max-height: min(55vh, 420px);
  object-fit: contain;
}

.anchor-preview {
  position: fixed;
  z-index: 20;
  width: min(420px, calc(100vw - 16px));
  max-height: min(260px, calc(100vh - 16px));
  overflow: auto;
  padding: var(--space-md) var(--space-lg);
  border: 1px solid #666;
  color: #d7d7d7;
  background: #111;
  box-shadow: 2px 2px 0 #000;
  pointer-events: none;
}

.anchor-preview[hidden] { display: none; }

.anchor-preview-meta {
  margin-bottom: var(--space-sm);
  color: #aaa;
  font: var(--font-size-meta)/var(--line-height-base) Tahoma, Arial, sans-serif;
}

.anchor-preview-body {
  margin: 0;
  color: inherit;
  font: inherit;
  tab-size: 4;
  white-space: pre-wrap;
}

@media (max-width: 600px) {
  .board-main { padding: var(--space-sm); }
  .thread-og-image {
    width: 112px;
    height: 63px;
    margin-left: var(--space-md);
  }
  .board-page input,
  .board-page select,
  .board-page textarea {
    /* Prevent iOS Safari from zooming and shifting the viewport on focus. */
    font-size: 16px;
  }
  .page-nav a,
  .board-page .thread-vote,
  .board-page .action-link {
    display: inline-flex;
    min-height: var(--space-2xl);
    align-items: center;
  }
  .reply-actions button { width: 136px; }
}