@import url("https://fonts.googleapis.com/css2?family=M+PLUS+1:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: light;
  --page-bg: #f7f5ef;
  --page-paper: #fffefa;
  --page-text: #23231f;
  --page-muted: #6d6b63;
  --page-line: #d9d5ca;
  --page-accent: #292925;
  --page-accent-text: #ffffff;
  --page-max: 1040px;
  --page-reading: 740px;
  --page-heading: "Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", serif;
  --page-body: "Hiragino Sans", "Yu Gothic UI", "BIZ UDPGothic", sans-serif;
}

html[data-page-theme="paper"] {
  --page-bg: #ffffff;
  --page-paper: #ffffff;
  --page-text: #2b2d30;
  --page-muted: #686c72;
  --page-line: #dedfe2;
  --page-accent: #2b2d30;
  --page-heading: "M PLUS 1", "Hiragino Sans", "BIZ UDPGothic", "Yu Gothic UI", sans-serif;
  --page-body: "M PLUS 1", "Hiragino Sans", "BIZ UDPGothic", "Yu Gothic UI", sans-serif;
}

html[data-page-accent="ocean"] { --page-accent: #166081; --page-accent-text: #fff; }
html[data-page-accent="moss"] { --page-accent: #496247; --page-accent-text: #fff; }
html[data-page-accent="ember"] { --page-accent: #a7432f; --page-accent-text: #fff; }

html[data-page-theme="editorial"] {
  --page-bg: #eeeae2;
  --page-paper: #f9f6ef;
  --page-text: #1d1d1a;
  --page-muted: #706d65;
  --page-line: #cec9bd;
  --page-max: 1160px;
  --page-reading: 790px;
}

html[data-page-theme="notebook"] {
  --page-bg: #e9ece6;
  --page-paper: #f8f5e9;
  --page-text: #253029;
  --page-muted: #667069;
  --page-line: #c8cfc4;
  --page-heading: "Hiragino Sans", "Yu Gothic UI", sans-serif;
}

html[data-page-theme="midnight"] {
  color-scheme: dark;
  --page-bg: #111214;
  --page-paper: #191b1e;
  --page-text: #f0eee8;
  --page-muted: #aaa9a4;
  --page-line: #34373b;
  --page-accent: #e8e4da;
  --page-accent-text: #151618;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--page-bg);
  color: var(--page-text);
  font-family: var(--page-body);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.page-skip-link { position: fixed; left: 16px; top: -80px; z-index: 100; padding: 10px 14px; background: var(--page-accent); color: var(--page-accent-text); }
.page-skip-link:focus { top: 16px; }

.page-site-header {
  border-bottom: 1px solid var(--page-line);
  background: color-mix(in srgb, var(--page-bg) 94%, transparent);
}

.page-site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  width: min(calc(100% - 40px), var(--page-max));
  min-height: 76px;
  margin-inline: auto;
}

.page-site-brand {
  overflow: hidden;
  font-family: var(--page-heading);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page-site-nav { display: flex; align-items: center; gap: 24px; overflow-x: auto; }
.page-site-nav a { flex: 0 0 auto; color: var(--page-muted); font-size: 0.86rem; text-decoration: none; }
.page-site-nav a:hover { color: var(--page-text); }

.page-flashes { position: fixed; top: 88px; left: 50%; z-index: 40; width: min(calc(100% - 32px), 620px); transform: translateX(-50%); }
.page-flash { margin-bottom: 8px; padding: 11px 16px; border: 1px solid var(--page-line); background: var(--page-paper); }
.page-flash--danger, .page-flash--warning { border-color: #b97157; }

.page-site-main {
  width: min(calc(100% - 40px), var(--page-max));
  min-height: calc(100vh - 210px);
  margin-inline: auto;
  padding: clamp(48px, 8vw, 108px) 0;
}

.page-site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(calc(100% - 40px), var(--page-max));
  margin-inline: auto;
  padding: 28px 0 36px;
  border-top: 1px solid var(--page-line);
  color: var(--page-muted);
  font-size: 0.78rem;
}

.page-site-footer a { text-decoration: none; }
.page-site-footer-meta { display: flex; gap: 18px; }

.page-home-content,
.page-article { max-width: var(--page-reading); margin-inline: auto; }

.page-home-heading,
.page-article-heading { margin-bottom: clamp(44px, 7vw, 82px); }

.page-home-heading--site { max-width: 850px; margin-bottom: clamp(64px, 11vw, 132px); }
.page-home-heading h1,
.page-article-heading h1,
.page-blog-heading h1 {
  margin: 0;
  font-family: var(--page-heading);
  font-size: clamp(2.5rem, 7vw, 5.7rem);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

html[data-page-theme="editorial"] .page-home-heading h1,
html[data-page-theme="editorial"] .page-article-heading h1 { font-size: clamp(3.1rem, 9vw, 7rem); }
html[data-page-theme="notebook"] .page-home-heading h1,
html[data-page-theme="notebook"] .page-article-heading h1 { font-weight: 600; letter-spacing: -0.045em; }

.page-home-heading p,
.page-article-heading > p {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--page-muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
}

.page-prose {
  font-size: clamp(1rem, 1.4vw, 1.08rem);
  line-height: 2;
  overflow-wrap: anywhere;
}

.page-prose h2,
.page-prose h3,
.page-prose h4 {
  margin: 2.7em 0 0.85em;
  font-family: var(--page-heading);
  line-height: 1.35;
}

.page-prose h2 { padding-bottom: 0.4em; border-bottom: 1px solid var(--page-line); font-size: 1.75em; }
.page-prose h3 { font-size: 1.35em; }
.page-prose p,
.page-prose ul,
.page-prose ol,
.page-prose blockquote { margin: 1.35em 0; }
.page-prose a { color: var(--page-accent); text-underline-offset: 0.2em; }
.page-prose blockquote { padding-left: 22px; border-left: 2px solid var(--page-accent); color: var(--page-muted); }
.page-prose code { padding: 0.12em 0.36em; background: color-mix(in srgb, var(--page-text) 8%, transparent); font-family: Consolas, monospace; font-size: 0.92em; }
.page-prose pre { max-width: 100%; padding: 18px; overflow: auto; background: #1d1f21; color: #f2f0e8; }
.page-prose pre code { padding: 0; background: transparent; color: inherit; }
.page-prose hr { margin: 3.5em 0; border: 0; border-top: 1px solid var(--page-line); }
.page-table-scroll {
  width: 100%;
  margin: 2em 0;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border-radius: 10px;
  background: var(--page-paper);
  scrollbar-width: thin;
}
.page-table-scroll:focus-visible { outline: 2px solid var(--page-accent); outline-offset: 3px; }
.page-prose table { width: max-content; min-width: 100%; border-collapse: separate; border-spacing: 0; }
.page-prose :is(th, td) { min-width: 130px; padding: 13px 16px; border-bottom: 1px solid var(--page-line); text-align: left; vertical-align: middle; }
.page-prose th { background: color-mix(in srgb, var(--page-text) 6%, var(--page-paper)); font-size: 0.88em; font-weight: 700; }
.page-prose tbody tr:last-child td { border-bottom: 0; }
.page-prose tbody tr:hover td { background: color-mix(in srgb, var(--page-accent) 5%, var(--page-paper)); }
.page-inline-media { display: block; width: auto; max-width: min(180px, 42vw); max-height: 130px; border-radius: 7px; object-fit: cover; }
.page-inline-media-missing { color: var(--page-muted); font-size: 0.82em; }
.page-action-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin: 1.4em 0;
  padding: 10px 20px;
  border-radius: 7px;
  background: var(--page-accent);
  color: var(--page-accent-text) !important;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
}
.page-action-button:hover { filter: brightness(0.92); }
.page-action-button:focus-visible { outline: 2px solid var(--page-text); outline-offset: 3px; }
.page-action-button.is-disabled { opacity: 0.55; cursor: not-allowed; }

.page-media {
  margin: 2.4em calc(min(0px, (var(--page-reading) - 92vw) / 2));
}
.page-media :is(img, video) { display: block; max-width: 100%; max-height: min(78vh, 900px); margin-inline: auto; object-fit: contain; }
.page-media figcaption { max-width: var(--page-reading); margin: 10px auto 0; color: var(--page-muted); font-size: 0.8rem; text-align: center; }
.page-media-missing { padding: 18px; border: 1px dashed var(--page-line); color: var(--page-muted); text-align: center; }

.page-home-posts { margin-top: clamp(64px, 10vw, 130px); }
.page-section-heading,
.page-blog-heading,
.page-comments-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
}
.page-section-heading h2,
.page-comments-heading h2,
.page-reactions h2 { margin: 0; font-family: var(--page-heading); font-size: 1.35rem; }
.page-section-heading a { color: var(--page-muted); font-size: 0.82rem; text-decoration: none; }

.page-post-list { border-top: 1px solid var(--page-line); }
.page-post-row { border-bottom: 1px solid var(--page-line); }
.page-post-row > a { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: start; padding: 26px 0; text-decoration: none; }
.page-post-row h3 { margin: 4px 0 0; font-family: var(--page-heading); font-size: clamp(1.25rem, 2.4vw, 1.8rem); line-height: 1.4; }
.page-post-row p { max-width: 700px; margin: 8px 0 0; color: var(--page-muted); }
.page-post-row time,
.page-post-category { color: var(--page-muted); font-size: 0.75rem; }

.page-blog-heading h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
.page-blog-heading > span { color: var(--page-muted); }
.page-blog-filter { display: grid; grid-template-columns: minmax(220px, 1fr) auto auto auto; gap: 8px; margin: 34px 0 14px; }
.page-blog-filter :is(input, select, button) { min-height: 46px; padding: 10px 13px; border: 1px solid var(--page-line); border-radius: 4px; background: var(--page-paper); color: var(--page-text); }
.page-blog-filter button { border-color: var(--page-accent); background: var(--page-accent); color: var(--page-accent-text); }
.page-tag-filter { display: flex; gap: 8px; margin-bottom: 38px; overflow-x: auto; }
.page-tag-filter a { flex: 0 0 auto; padding: 5px 10px; color: var(--page-muted); text-decoration: none; }
.page-tag-filter a.is-current { background: var(--page-accent); color: var(--page-accent-text); }

.page-blog-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-top: 1px solid var(--page-line); }
.page-blog-item { min-width: 0; border-bottom: 1px solid var(--page-line); }
.page-blog-item:nth-child(odd) { padding-right: 28px; border-right: 1px solid var(--page-line); }
.page-blog-item:nth-child(even) { padding-left: 28px; }
.page-blog-item > a { display: block; min-height: 260px; padding: 28px 0; text-decoration: none; }
.page-blog-item-top,
.page-blog-item-meta { display: flex; gap: 12px; color: var(--page-muted); font-size: 0.73rem; }
.page-blog-item-top { justify-content: space-between; }
.page-blog-item h2 { margin: 18px 0 10px; font-family: var(--page-heading); font-size: clamp(1.35rem, 2.7vw, 2rem); line-height: 1.35; }
.page-blog-item p { margin: 0; color: var(--page-muted); }
.page-blog-item-meta { margin-top: 26px; flex-wrap: wrap; }

.page-pagination { display: flex; justify-content: center; align-items: center; gap: 20px; margin-top: 40px; }
.page-pagination a { padding: 8px 12px; border-bottom: 1px solid var(--page-text); text-decoration: none; }
.page-pagination span { color: var(--page-muted); font-size: 0.85rem; }

.page-article-kicker { display: flex; gap: 14px; margin-bottom: 18px; color: var(--page-muted); font-size: 0.78rem; }
.page-article-tags { display: flex; gap: 8px; margin-top: 22px; flex-wrap: wrap; }
.page-article-tags a { color: var(--page-muted); font-size: 0.82rem; text-decoration: none; }

.page-reactions,
.page-comments { max-width: var(--page-reading); margin: 76px auto 0; padding-top: 28px; border-top: 1px solid var(--page-line); }
.page-reactions > div { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.page-reactions form { margin: 0; }
.page-reactions :is(button, a) { display: inline-flex; align-items: center; gap: 7px; min-height: 42px; padding: 8px 13px; border: 1px solid var(--page-line); border-radius: 999px; background: transparent; color: var(--page-text); text-decoration: none; }
.page-reactions :is(button, a):hover,
.page-reactions button.is-selected { border-color: var(--page-accent); background: var(--page-accent); color: var(--page-accent-text); }
.page-reactions b { font-variant-numeric: tabular-nums; }

.page-comment-form { display: grid; justify-items: end; gap: 10px; margin: 24px 0 34px; }
.page-comment-form label { width: 100%; }
.page-comment-form textarea,
.page-comment-reply textarea { width: 100%; resize: vertical; padding: 12px 0; border: 0; border-bottom: 1px solid var(--page-line); border-radius: 0; outline: 0; background: transparent; color: var(--page-text); }
.page-comment-form textarea:focus,
.page-comment-reply textarea:focus { border-color: var(--page-accent); }
.page-comment-form button,
.page-comment-reply button { padding: 9px 15px; border: 0; border-radius: 3px; background: var(--page-accent); color: var(--page-accent-text); }
.page-comment-login { display: inline-block; margin: 18px 0 32px; padding-bottom: 2px; border-bottom: 1px solid; text-decoration: none; }
.page-comment-list { border-top: 1px solid var(--page-line); }
.page-comment { padding: 24px 0; border-bottom: 1px solid var(--page-line); }
.page-comment header { display: flex; align-items: baseline; gap: 10px; }
.page-comment header time,
.page-comment header span { color: var(--page-muted); font-size: 0.72rem; }
.page-comment > p { margin: 8px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.page-comment-actions { display: flex; align-items: start; gap: 14px; margin-top: 12px; }
.page-comment-actions > form { margin: 0; }
.page-comment--reply { margin: 20px 0 0 24px; padding: 18px 0 0 18px; border-bottom: 0; border-left: 1px solid var(--page-line); }
.page-comment-reply { margin: 0; }
.page-comment-reply summary { width: fit-content; color: var(--page-muted); font-size: 0.78rem; cursor: pointer; list-style: none; }
.page-comment-reply form { display: grid; justify-items: end; gap: 8px; margin-top: 8px; }
.page-comment-delete { padding: 0; border: 0; background: transparent; color: var(--page-muted); font-size: 0.78rem; }
.page-comment-delete:hover { color: #a7432f; }
.page-empty { color: var(--page-muted); }

@media (max-width: 720px) {
  .page-prose :is(th, td) { min-width: 112px; padding: 11px 13px; }
  .page-action-button { width: 100%; }
  .page-site-header-inner { align-items: flex-start; flex-direction: column; gap: 10px; padding-block: 18px; }
  .page-site-nav { width: 100%; gap: 18px; }
  .page-site-main { padding-top: 52px; }
  .page-site-footer { align-items: flex-start; flex-direction: column; }
  .page-blog-filter { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .page-blog-search { grid-column: 1 / -1; }
  .page-blog-filter button { grid-column: 1 / -1; }
  .page-blog-grid { grid-template-columns: minmax(0, 1fr); }
  .page-blog-item:nth-child(odd),
  .page-blog-item:nth-child(even) { padding-inline: 0; border-right: 0; }
  .page-blog-item > a { min-height: 0; }
}

@media (max-width: 460px) {
  .page-site-header-inner,
  .page-site-main,
  .page-site-footer { width: min(calc(100% - 28px), var(--page-max)); }
  .page-blog-filter { grid-template-columns: minmax(0, 1fr); }
  .page-blog-search,
  .page-blog-filter button { grid-column: auto; }
  .page-post-row > a { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .page-comment--reply { margin-left: 8px; padding-left: 12px; }
}

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