:root {
  --paper: #f7f3ec;
  --paper-2: #efe8dc;
  --ink: #2b2a27;
  --sub: #6b665d;
  --line: #d8cfbf;
  --accent: #a8552f;
  --accent-ink: #8c4425;
  --green: #5f7f5a;
  --white: #fffdf9;
  --mincho: "Shippori Mincho B1", serif;
  --gothic: "Zen Kaku Gothic New", system-ui, sans-serif;
  --wrap: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--gothic);
  font-size: 16px;
  line-height: 1.9;
  letter-spacing: .03em;
  -webkit-text-size-adjust: 100%;
}
img, svg { max-width: 100%; }
a { color: var(--accent-ink); }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

/* header */
.site-head {
  position: sticky; top: 0; z-index: 10;
  background: rgba(247, 243, 236, .92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid transparent;
}
.site-head.scrolled { border-bottom-color: var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-family: var(--mincho); font-weight: 700; font-size: 17px; letter-spacing: .08em; }
.logo small { font-family: var(--gothic); font-weight: 500; font-size: 11px; color: var(--sub); letter-spacing: .1em; }
.nav { display: flex; gap: 22px; font-size: 14px; }
.nav a { color: var(--ink); text-decoration: none; }
.nav a:hover, .nav a[aria-current] { color: var(--accent); }
@media (max-width: 760px) { .nav { display: none; } }

/* type */
h1, h2, h3 { font-family: var(--mincho); font-weight: 700; line-height: 1.45; letter-spacing: .05em; margin: 0; }
.kicker { display: inline-block; font-size: 12px; letter-spacing: .25em; color: var(--accent); margin-bottom: 20px; font-weight: 500; }
.big { font-size: clamp(30px, 5.4vw, 56px); }
.mid { font-size: clamp(26px, 3.8vw, 40px); }
.body { max-width: 34em; color: var(--ink); margin: 24px 0 0; }
.body + .body { margin-top: 12px; }
.muted { color: var(--sub); }
.source { font-size: 12px; color: var(--sub); margin-top: 16px; }

/* buttons */
.btns { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 36px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px; border-radius: 999px;
  font-size: 15px; font-weight: 500; text-decoration: none;
  border: 1px solid var(--ink); color: var(--ink); background: transparent;
  transition: background .2s, color .2s;
}
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); color: #fff; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(3px); }

/* scenes */
.scene { padding: 120px 0; position: relative; }
.scene.tint { background: var(--paper-2); }
.scene.dark { background: #2f2c27; color: #f1ece3; }
.scene.dark .muted, .scene.dark .source { color: #b9b1a3; }
.scene.dark a { color: #f0b48f; }
@media (max-width: 600px) { .scene { padding: 80px 0; } }

/* hero */
.hero { min-height: calc(100svh - 60px); display: flex; align-items: center; padding: 48px 0 72px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; width: 100%; }
.hero h1 { font-size: clamp(34px, 5.4vw, 64px); line-height: 1.35; }
.nw { white-space: nowrap; }
.hero .lead { font-size: clamp(15px, 1.6vw, 18px); margin-top: 28px; max-width: 30em; }
.hero-art { width: 100%; }
@media (max-width: 860px) {
  .hero { min-height: auto; padding-top: 32px; }
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { max-width: 420px; justify-self: center; order: -1; }
}

/* baton line drawing */
.draw path.baton { stroke-dasharray: 600; stroke-dashoffset: 600; animation: draw 2.4s .4s ease forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
@media (prefers-reduced-motion: reduce) {
  .draw path.baton { animation: none; stroke-dashoffset: 0; }
  html { scroll-behavior: auto; }
}

/* number facts */
.facts { display: flex; gap: 48px; flex-wrap: wrap; margin-top: 48px; }
.fact .num { font-family: var(--mincho); font-size: clamp(44px, 6vw, 72px); line-height: 1; color: var(--accent); }
.fact .num small { font-size: .4em; margin-left: 4px; color: var(--ink); }
.scene.dark .fact .num small { color: #f1ece3; }
.fact .cap { font-size: 13px; color: var(--sub); margin-top: 10px; }
.fact .arrow-r { font-family: var(--mincho); font-size: 32px; color: var(--sub); align-self: center; }

/* two column */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; gap: 40px; } }

/* paper mock */
.paper-stack { position: relative; aspect-ratio: 210 / 297; max-width: 360px; margin: 0 auto; width: 100%; }
.paper-stack .pg {
  position: absolute; inset: 0; background: #fff; border: 1px solid var(--line);
  box-shadow: 0 10px 30px rgba(60, 40, 20, .08);
  padding: 9% 9%;
}
.paper-stack .pg:nth-child(1) { transform: rotate(-5deg) translate(-6%, 3%); }
.paper-stack .pg:nth-child(2) { transform: rotate(3deg) translate(5%, 1%); }
.pg .t { font-family: var(--mincho); font-weight: 700; font-size: clamp(20px, 3vw, 28px); letter-spacing: .1em; }
.pg .k { font-size: 10px; letter-spacing: .25em; color: var(--accent); }
.pg .m { font-family: var(--mincho); font-size: 12px; line-height: 1.8; margin-top: 12%; }
.pg .rule { height: 1px; background: var(--ink); margin: 14% 0 6%; width: 70%; }
.pg .row { height: 7%; border: 1px solid var(--line); border-top: 0; }
.pg .row:first-of-type { border-top: 1px solid var(--line); }

/* list of five */
.five { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.five li { background: var(--paper); padding: 24px 20px 28px; }
.five .n { font-family: var(--mincho); color: var(--accent); font-size: 14px; }
.five h3 { font-size: 19px; margin: 8px 0 10px; }
.five p { font-size: 13.5px; line-height: 1.8; margin: 0; color: var(--sub); }
@media (max-width: 900px) { .five { grid-template-columns: 1fr 1fr; } .five li:last-child { grid-column: 1 / -1; } }
@media (max-width: 520px) { .five { grid-template-columns: 1fr; } }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; margin-top: 48px; }
.card { background: var(--white); border: 1px solid var(--line); padding: 28px 24px; display: flex; flex-direction: column; gap: 10px; }
.card h3 { font-size: 20px; }
.card p { margin: 0; font-size: 14px; color: var(--sub); line-height: 1.85; }
.card .tag { align-self: flex-start; font-size: 11px; letter-spacing: .1em; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--green); color: var(--green); }
.card .icon { width: 44px; height: 44px; }
a.card { text-decoration: none; color: var(--ink); transition: border-color .2s, transform .2s; }
a.card:hover { border-color: var(--accent); transform: translateY(-2px); }
a.card .more { margin-top: auto; padding-top: 8px; color: var(--accent-ink); font-size: 14px; }

/* rules */
.rule-list { list-style: none; padding: 0; margin: 40px 0 0; display: grid; gap: 0; border-top: 1px solid rgba(241, 236, 227, .25); }
.rule-list li { display: grid; grid-template-columns: 3em 1fr; padding: 20px 0; border-bottom: 1px solid rgba(241, 236, 227, .25); font-size: 17px; }
.rule-list li span { font-family: var(--mincho); color: #f0b48f; }
.scene:not(.dark) .rule-list { border-top-color: var(--line); }
.scene:not(.dark) .rule-list li { border-bottom-color: var(--line); }
.scene:not(.dark) .rule-list li span { color: var(--accent); }

/* wards */
.wards { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; margin-top: 40px; list-style: none; padding: 0; }
.wards li { border: 1px solid var(--line); background: var(--white); padding: 14px 16px; font-family: var(--mincho); font-size: 18px; display: flex; flex-direction: column; }
.wards li small { font-family: var(--gothic); font-size: 11px; color: var(--sub); }
.wards li.on { border-color: var(--accent); }
.wards li.on small { color: var(--accent); }

/* tables */
.tbl-wrap { overflow-x: auto; margin-top: 32px; -webkit-overflow-scrolling: touch; }
table.tbl { border-collapse: collapse; width: 100%; min-width: 560px; font-size: 14px; background: var(--white); }
.tbl th, .tbl td { border: 1px solid var(--line); padding: 12px 14px; text-align: left; vertical-align: top; line-height: 1.75; }
.tbl th { background: var(--paper-2); font-weight: 500; }

/* sub pages */
.page-head { padding: 72px 0 40px; }
.page-head h1 { font-size: clamp(30px, 5vw, 48px); }
.page-head .body { color: var(--sub); }
.section { padding: 56px 0; border-top: 1px solid var(--line); }
.section h2 { font-size: clamp(22px, 3vw, 28px); margin-bottom: 8px; }
.prose { max-width: 40em; }
.prose p { margin: 16px 0 0; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 16px 0 0; }
.prose li { margin: 6px 0; }
.note { border-left: 3px solid var(--accent); background: var(--white); padding: 14px 18px; font-size: 14px; color: var(--sub); margin-top: 24px; max-width: 46em; }

/* contact */
.contact-box { border: 1px solid rgba(241, 236, 227, .35); padding: 40px; margin-top: 40px; display: grid; gap: 8px; max-width: 640px; }
.contact-box .mail { font-family: var(--mincho); font-size: clamp(20px, 3vw, 28px); color: #fff; text-decoration: none; word-break: break-all; }
.contact-box .mail:hover { color: #f0b48f; }
@media (max-width: 600px) { .contact-box { padding: 24px; } }

/* footer */
.site-foot { background: #24221e; color: #b9b1a3; font-size: 13px; padding: 48px 0 40px; }
.site-foot .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-foot a { color: #e6dfd2; text-decoration: none; }
.site-foot a:hover { color: #f0b48f; }
.site-foot nav { display: flex; gap: 18px; flex-wrap: wrap; }

/* reveal */
.rv { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } }
.no-js .rv { opacity: 1; transform: none; }

@media (max-width: 600px) { .paper-stack { max-width: 76%; } }
.section .rule-list { border-top-color: var(--line); }
.section .rule-list li { border-bottom-color: var(--line); }
.section .rule-list li span { color: var(--accent); }
@media (max-width: 600px) { .page-head h1 { font-size: 26px; } }