:root {
  color-scheme: dark;
  --sans: "IBM Plex Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --serif: "IBM Plex Serif", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  --bg: #0b1016;
  --bg-raised: #121a23;
  --bg-panel: #17212c;
  --bg-sunk: #080c11;
  --fg: #d9e1e8;
  --fg-strong: #f7fafc;
  --muted: #91a1af;
  --faint: #667887;
  --line: #2a3947;
  --line-strong: #455867;
  --accent: #ff9d2e;
  --accent-strong: #ffc15f;
  --accent-soft: rgba(255, 157, 46, 0.12);
  --cyan: #72dfca;
  --cyan-soft: rgba(114, 223, 202, 0.1);
  --danger: #ff786f;
  --on-accent: #201306;
  --shadow: rgba(0, 0, 0, 0.35);
  --grid: rgba(255, 255, 255, 0.025);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f0e9;
  --bg-raised: #fffdf7;
  --bg-panel: #e9e5dc;
  --bg-sunk: #ddd8ce;
  --fg: #26313a;
  --fg-strong: #111920;
  --muted: #596873;
  --faint: #78858d;
  --line: #c9c2b6;
  --line-strong: #9f998f;
  --accent: #ba5800;
  --accent-strong: #8c3f00;
  --accent-soft: rgba(186, 88, 0, 0.1);
  --cyan: #006f68;
  --cyan-soft: rgba(0, 111, 104, 0.08);
  --danger: #a52d29;
  --on-accent: #fff;
  --shadow: rgba(31, 28, 22, 0.15);
  --grid: rgba(26, 31, 34, 0.045);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 20px; }
body {
  min-width: 320px;
  margin: 0;
  background-color: var(--bg);
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 32px 32px;
  color: var(--fg);
  font-family: var(--sans);
  line-height: 1.75;
}
a { color: var(--accent-strong); text-underline-offset: 3px; }
.item-link { color: inherit; text-decoration-line: underline; text-decoration-color: var(--cyan); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.item-link:hover { color: var(--cyan); text-decoration-color: var(--accent-strong); }
a:hover { color: var(--cyan); }
button, input, select { font: inherit; }
button, select { cursor: pointer; }
code, .mono { font-family: var(--mono); }
.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;
}

.masthead {
  border-bottom: 1px solid var(--line);
  background-color: var(--bg-raised);
  box-shadow: 0 14px 40px var(--shadow);
}
.masthead__inner {
  width: min(1280px, calc(100% - 40px));
  min-height: 116px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 18px;
}
.mark { flex: none; filter: drop-shadow(0 7px 16px var(--shadow)); }
.masthead__copy { min-width: 0; margin-right: auto; }
.eyebrow {
  margin: 0 0 4px;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
}
.masthead h1 { margin: 0; color: var(--fg-strong); font-size: clamp(22px, 3vw, 34px); line-height: 1.25; }
.tagline { margin: 5px 0 0; color: var(--muted); font-size: 13px; }
.tagline code { color: var(--accent-strong); }

.theme-switch { display: inline-flex; flex: none; margin: 0; padding: 0; border: 1px solid var(--line); background-color: var(--bg-sunk); }
.theme-switch:empty { display: none; }
.theme-switch__option { position: relative; }
.theme-switch__option + .theme-switch__option { border-left: 1px solid var(--line); }
.theme-switch__option input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: pointer; }
.theme-switch__option span { display: block; padding: 6px 12px; color: var(--muted); font-size: 11px; white-space: nowrap; }
.theme-switch__option input:checked + span { background-color: var(--accent); color: var(--on-accent); }
.theme-switch__option input:focus-visible + span { outline: 2px solid var(--cyan); outline-offset: 2px; }

.site-nav {
  width: min(1280px, calc(100% - 40px));
  margin: 0 auto;
  padding-top: 10px;
  display: flex;
  flex-wrap: wrap;
}
.site-nav a {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-bottom: 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  text-decoration: none;
}
.site-nav a + a { border-left: 0; }
.site-nav a:hover { color: var(--accent-strong); }
.site-nav a[aria-current="page"] { background-color: var(--bg); color: var(--fg-strong); box-shadow: inset 0 3px 0 var(--accent); }

main { width: min(1280px, calc(100% - 40px)); margin: 0 auto; padding: 34px 0 70px; }
.page-intro { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 30px; align-items: end; margin-bottom: 28px; }
.page-intro h2 { margin: 0; color: var(--fg-strong); font-size: clamp(28px, 5vw, 48px); line-height: 1.15; letter-spacing: -.03em; }
.page-intro p { max-width: 750px; margin: 12px 0 0; color: var(--muted); }
.build-stamp { padding: 10px 13px; border: 1px solid var(--line); background-color: var(--bg-raised); color: var(--muted); font-family: var(--mono); font-size: 11px; }

.ad-slot { width: min(970px, 100%); margin: 0 auto; text-align: center; }
.ad-slot__label { display: none; margin: 32px 0 6px; color: var(--muted); font-size: 11px; letter-spacing: .16em; }
.ad-slot:has(ins[data-ad-status="filled"]) .ad-slot__label { display: block; }
.ad-slot .adsbygoogle { max-width: 100%; }
.ad-slot ins[data-ad-status="unfilled"] { display: none !important; }
.ad-slot--top .ad-slot__label { margin-top: 8px; }
.ad-slot--top.is-reserving { min-height: 130px; margin-bottom: 14px; }
.ad-slot--top:has(ins[data-ad-status="unfilled"]) { min-height: 0; margin-bottom: 0; }

.controls { padding: 18px; border: 1px solid var(--line); background-color: var(--bg-raised); box-shadow: 0 12px 30px var(--shadow); }
.controls__grid { display: grid; grid-template-columns: minmax(240px, 2fr) repeat(3, minmax(140px, 1fr)); gap: 12px; }
.field { display: grid; gap: 5px; }
.field label { color: var(--muted); font-size: 11px; letter-spacing: .08em; }
.field input, .field select {
  width: 100%;
  min-height: 43px;
  padding: 8px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background-color: var(--bg-sunk);
  color: var(--fg-strong);
}
.field input:focus, .field select:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.controls__footer { display: flex; align-items: center; gap: 15px; margin-top: 13px; }
.result-count { margin-right: auto; color: var(--muted); font-family: var(--mono); font-size: 12px; }
.button {
  min-height: 40px;
  padding: 8px 15px;
  border: 1px solid var(--line-strong);
  background-color: var(--bg-panel);
  color: var(--fg-strong);
}
.button:hover { border-color: var(--accent); color: var(--accent-strong); }
.button--primary { border-color: var(--accent); background-color: var(--accent); color: var(--on-accent); font-weight: 700; }
.button--primary:hover { background-color: var(--accent-strong); color: var(--on-accent); }

.catalog { margin-top: 20px; }
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.entry-card {
  min-width: 0;
  padding: 17px;
  border: 1px solid var(--line);
  background-color: var(--bg-raised);
  box-shadow: inset 3px 0 0 transparent;
}
.entry-card:hover { border-color: var(--line-strong); box-shadow: inset 3px 0 0 var(--accent); }
.entry-card__top { display: flex; align-items: flex-start; gap: 14px; }
.entry-card__image { flex: none; width: 78px; height: 78px; padding: 5px; border: 1px solid var(--line); background-color: var(--bg-sunk); object-fit: contain; }
.entry-card__head { display: flex; flex: 1; min-width: 0; align-items: flex-start; gap: 10px; }
.entry-card__title { min-width: 0; margin-right: auto; }
.entry-card h3 { margin: 0; color: var(--fg-strong); font-size: 17px; line-height: 1.4; }
.entry-card__en { display: block; margin-top: 2px; color: var(--faint); font-family: var(--mono); font-size: 10px; overflow-wrap: anywhere; }
.badge { flex: none; display: inline-flex; align-items: center; min-height: 22px; padding: 2px 7px; border: 1px solid var(--line-strong); color: var(--muted); font-family: var(--mono); font-size: 9px; letter-spacing: .06em; text-transform: uppercase; }
.badge--accent { border-color: var(--accent); color: var(--accent-strong); }
.badge--cyan { border-color: var(--cyan); color: var(--cyan); }
.entry-card__summary { display: -webkit-box; min-height: 3.4em; margin: 12px 0; overflow: hidden; color: var(--muted); font-size: 12px; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.metrics { display: flex; flex-wrap: wrap; gap: 6px; margin: 11px 0 14px; }
.metric { padding: 4px 7px; background-color: var(--bg-sunk); color: var(--muted); font-family: var(--mono); font-size: 10px; }
.metric strong { color: var(--fg-strong); font-weight: 500; }
.flow { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); gap: 8px; align-items: center; min-height: 48px; margin: 12px 0; }
.flow__side { display: flex; flex-wrap: wrap; gap: 5px; }
.flow__arrow { color: var(--accent); font-family: var(--mono); }
.chip { padding: 3px 6px; border: 1px solid var(--line); background-color: var(--bg-sunk); color: var(--fg); font-size: 10px; }
.entry-card__actions { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.entry-card__id { min-width: 0; overflow: hidden; color: var(--faint); font-family: var(--mono); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.load-more { display: block; min-width: 190px; margin: 25px auto 0; }
.empty { padding: 44px 20px; border: 1px dashed var(--line-strong); color: var(--muted); text-align: center; }
.empty strong { display: block; color: var(--fg-strong); }
.empty code { display: block; width: fit-content; max-width: 100%; margin: 14px auto; padding: 8px 10px; overflow-wrap: anywhere; background-color: var(--bg-sunk); color: var(--cyan); text-align: left; }
.empty .button { display: inline-block; margin-top: 4px; text-decoration: none; }

.detail-dialog { width: min(800px, calc(100% - 28px)); max-height: min(840px, calc(100vh - 36px)); padding: 0; border: 1px solid var(--line-strong); border-radius: 0; background-color: var(--bg-raised); color: var(--fg); box-shadow: 0 24px 80px rgba(0, 0, 0, .65); }
.detail-dialog--item { width: min(1050px, calc(100% - 28px)); }
.detail-dialog::backdrop { background: rgba(2, 6, 9, .76); backdrop-filter: blur(3px); }
.detail-dialog__head { position: sticky; top: 0; z-index: 2; display: flex; align-items: flex-start; gap: 15px; padding: 20px 22px; border-bottom: 1px solid var(--line); background-color: var(--bg-raised); }
.detail-dialog__head div { min-width: 0; margin-right: auto; }
.detail-dialog h2 { margin: 0; color: var(--fg-strong); line-height: 1.35; }
.detail-dialog__en { color: var(--muted); font-family: var(--mono); font-size: 11px; }
.icon-button { width: 40px; height: 40px; border: 1px solid var(--line); background-color: var(--bg-panel); color: var(--fg); font-size: 22px; }
.detail-dialog__body { padding: 22px; }
.detail-dialog__intro { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 20px; align-items: center; margin-bottom: 22px; }
.detail-dialog__intro p { margin: 0; }
.detail-dialog__image { width: 150px; height: 150px; padding: 8px; border: 1px solid var(--line); background-color: var(--bg-sunk); object-fit: contain; }
.detail-dialog__body h3 { margin: 28px 0 9px; color: var(--accent-strong); font-size: 15px; }
.detail-dialog__body h3:first-child { margin-top: 0; }
.detail-dialog__body p { color: var(--muted); }
.item-recipes + .item-recipes { margin-top: 28px; }
.item-recipes__empty { margin: 0; padding: 12px 14px; border: 1px dashed var(--line); background-color: var(--bg-sunk); }
.item-recipe-table-wrap { max-width: 100%; overflow-x: auto; }
.item-recipe-table { min-width: 760px; }
.item-recipe-name { min-width: 180px; text-align: left; }
.item-recipe-name strong, .item-recipe-name small { display: block; }
.item-recipe-name small { margin-top: 3px; color: var(--faint); font-family: var(--mono); font-size: 9px; font-weight: 400; overflow-wrap: anywhere; }
.detail-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 0; }
.detail-list div { padding: 10px 12px; border: 1px solid var(--line); background-color: var(--bg-sunk); }
.detail-list dt { color: var(--faint); font-size: 10px; }
.detail-list dd { margin: 2px 0 0; color: var(--fg-strong); }
.data-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.data-table th, .data-table td { padding: 9px 10px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.data-table th { background-color: var(--bg-panel); color: var(--muted); font-weight: 500; }

.planner-layout { display: grid; grid-template-columns: minmax(280px, 360px) minmax(0, 1fr); gap: 20px; align-items: start; }
.planner-panel { padding: 20px; border: 1px solid var(--line); background-color: var(--bg-raised); }
.planner-panel h3 { margin: 0 0 16px; color: var(--fg-strong); }
.planner-panel .field + .field { margin-top: 12px; }
.planner-note { margin: 18px 0 0; color: var(--muted); font-size: 12px; }
.planner-results { min-width: 0; }
.planner-summary { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 13px; }
.planner-step { margin-bottom: 10px; padding: 16px; border: 1px solid var(--line); background-color: var(--bg-raised); }
.planner-step__head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 300px); gap: 15px; align-items: center; }
.planner-step h3 { margin: 0; color: var(--fg-strong); }
.planner-step p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.planner-step select { width: 100%; min-height: 38px; border: 1px solid var(--line); background-color: var(--bg-sunk); color: var(--fg); }
.raw-inputs { margin-top: 20px; padding: 18px; border: 1px solid var(--cyan); background-color: var(--cyan-soft); }
.raw-inputs h3 { margin: 0 0 10px; color: var(--cyan); }
.warning { padding: 12px 14px; border-left: 3px solid var(--danger); background-color: var(--bg-panel); color: var(--muted); }

.guide-layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 30px; align-items: start; }
.guide-sidebar { align-self: stretch; }
.guide-sidebar__sticky { position: sticky; top: 18px; padding: 18px; border: 1px solid var(--line); background-color: var(--bg-raised); }
.guide-sidebar p { margin: 0 0 10px; color: var(--faint); font-family: var(--mono); font-size: 10px; letter-spacing: .12em; }
.guide-sidebar ol { margin: 0; padding-left: 22px; }
.guide-sidebar li + li { margin-top: 5px; }
.guide-sidebar a { color: var(--muted); font-size: 12px; text-decoration: none; }
.guide-sidebar a:hover { color: var(--accent-strong); }
.guide-content { min-width: 0; }
.guide-section { scroll-margin-top: 20px; padding: 26px clamp(20px, 4vw, 42px); border: 1px solid var(--line); background-color: var(--bg-raised); }
.guide-section + .guide-section { margin-top: 14px; }
.guide-section h2 { margin: 0 0 14px; color: var(--fg-strong); font-size: clamp(22px, 3vw, 31px); }
.guide-section h3 { margin: 25px 0 9px; color: var(--accent-strong); }
.guide-section p, .guide-section li { color: var(--muted); }
.formula { padding: 16px; border-left: 3px solid var(--accent); background-color: var(--bg-sunk); color: var(--fg-strong); font-family: var(--mono); overflow-x: auto; }
.callout { padding: 16px 18px; border: 1px solid var(--cyan); background-color: var(--cyan-soft); }

.prose { width: min(850px, 100%); margin: 0 auto; }
.prose section { margin-top: 28px; padding: 24px; border: 1px solid var(--line); background-color: var(--bg-raised); }
.prose h2 { margin: 0 0 12px; color: var(--fg-strong); }
.prose h3 { color: var(--accent-strong); }
.prose p, .prose li { color: var(--muted); }

.site-footer { border-top: 1px solid var(--line); background-color: var(--bg-raised); }
.site-footer__inner { width: min(1280px, calc(100% - 40px)); margin: 0 auto; padding: 28px 0 38px; }
.footer-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; color: var(--muted); font-size: 11px; }
.footer-row nav { display: flex; flex-wrap: wrap; gap: 14px; margin-left: auto; }
.footer-row a { color: var(--muted); }
.sister-sites { display: grid; grid-template-columns: 210px minmax(0, 1fr); gap: 14px; margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--line); }
.sister-sites__intro { display: grid; align-content: start; }
.sister-sites__intro span, .sister-sites__code { color: var(--accent-strong); font-family: var(--mono); font-size: 9px; letter-spacing: .12em; }
.sister-sites__intro strong { color: var(--fg-strong); }
.sister-sites__intro small { color: var(--faint); }
.sister-sites__list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.sister-sites__item { display: grid; padding: 12px; border: 1px solid var(--line); color: var(--muted); text-decoration: none; }
.sister-sites__item + .sister-sites__item { border-left: 0; }
.sister-sites__item strong { color: var(--fg-strong); }
.sister-sites__item small { color: var(--muted); }
.sister-sites__item[aria-current="page"] { background-color: var(--accent-soft); box-shadow: inset 0 3px 0 var(--accent); }

@media (max-width: 1000px) {
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .controls__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .planner-layout { grid-template-columns: 1fr; }
  .planner-panel { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .planner-panel h3, .planner-panel .planner-note { grid-column: 1 / -1; }
  .planner-panel .field + .field { margin-top: 0; }
  .guide-layout { grid-template-columns: 1fr; }
  .guide-sidebar { align-self: auto; }
  .guide-sidebar__sticky { position: static; }
  .guide-sidebar ol { columns: 2; }
  .sister-sites { grid-template-columns: 1fr; }
  .sister-sites__list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sister-sites__item + .sister-sites__item { border-left: 1px solid var(--line); }
}

@media (max-width: 680px) {
  .masthead__inner, .site-nav, main, .site-footer__inner { width: min(100% - 24px, 1280px); }
  .masthead__inner { min-height: 0; padding: 16px 0; align-items: flex-start; flex-wrap: wrap; }
  .mark { width: 48px; height: 48px; }
  .masthead__copy { width: calc(100% - 66px); }
  .masthead h1 { font-size: 20px; letter-spacing: -.02em; }
  .theme-switch { margin-left: 66px; }
  .site-nav { gap: 5px; padding: 8px 0; }
  .site-nav a { flex: 1 1 calc(33.333% - 5px); min-height: 44px; padding: 7px 3px; border: 1px solid var(--line); text-align: center; }
  .site-nav a + a { border-left: 1px solid var(--line); }
  main { padding-top: 25px; }
  .page-intro { grid-template-columns: 1fr; gap: 12px; }
  .build-stamp { justify-self: start; }
  .controls { padding: 13px; }
  .controls__grid { grid-template-columns: 1fr; }
  .controls__footer { flex-wrap: wrap; }
  .result-count { width: 100%; }
  .card-grid { grid-template-columns: 1fr; }
  .entry-card__summary { min-height: auto; }
  .entry-card__image { width: 70px; height: 70px; }
  .detail-dialog__intro { grid-template-columns: 96px minmax(0, 1fr); gap: 13px; }
  .detail-dialog__image { width: 96px; height: 96px; padding: 5px; }
  .detail-list { grid-template-columns: 1fr; }
  .planner-panel { display: block; }
  .planner-panel .field + .field { margin-top: 12px; }
  .planner-step__head { grid-template-columns: 1fr; }
  .guide-sidebar ol { columns: 1; }
  .guide-section { padding: 21px 17px; }
  .sister-sites__list { grid-template-columns: 1fr; }
  .sister-sites__item + .sister-sites__item { border-top: 0; }
  .footer-row nav { width: 100%; margin-left: 0; }
}