:root {
  --bg: #fff7ec;
  --bg-accent: #ffebd3;
  --surface: #ffffff;
  --surface-sub: #fff1e2;
  --ink: #4a3b32;
  --ink-sub: #8a7566;
  --line: #eadbcd;
  --primary: #ff8a5b;
  --primary-ink: #c4532a;
  --primary-soft: #ffd8c6;
  --shadow: 0 6px 20px rgba(120, 80, 50, 0.1);
  --radius: 22px;
  color-scheme: light;
}


* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", "Hiragino Sans", "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--primary-ink); }

.wrap { width: 100%; max-width: 1040px; margin: 0 auto; padding: 0 20px; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 20px; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav { display: flex; gap: 18px; align-items: center; font-size: 14px; font-weight: 700; }
.nav a { color: var(--ink-sub); text-decoration: none; }
.nav a:hover { color: var(--ink); }
.nav .btn-sm { color: #fff; background: var(--primary); padding: 6px 16px; border-radius: 999px; }
@media (max-width: 640px) { .nav .hide-sp { display: none; } }

/* ---------- buttons ---------- */
.store-buttons { display: flex; flex-wrap: wrap; gap: 12px; }
.store-btn {
  display: inline-flex; align-items: center; gap: 10px;
  min-height: 54px; padding: 8px 22px;
  border-radius: 14px; text-decoration: none;
  background: #1d1d1f; color: #fff; font-weight: 700; line-height: 1.2;
  transition: transform .15s ease;
}
.store-btn:hover { transform: translateY(-2px); }
.store-btn svg { width: 24px; height: 24px; flex: none; fill: currentColor; }
.store-btn small { display: block; font-size: 11px; font-weight: 500; opacity: .8; }
.store-btn.is-soon { background: var(--surface); color: var(--ink-sub); border: 2px dashed var(--line); pointer-events: none; }

/* ---------- hero ---------- */
.hero { padding: 56px 0 40px; background: radial-gradient(circle at 80% 20%, var(--bg-accent), transparent 60%); }
.hero .wrap { display: grid; grid-template-columns: 1.05fr 1fr; gap: 32px; align-items: center; }
.hero-icon { width: 88px; height: 88px; border-radius: 22px; box-shadow: var(--shadow); margin-bottom: 18px; }
.hero h1 { font-size: clamp(44px, 9vw, 76px); line-height: 1.05; margin: 0 0 6px; font-weight: 900; letter-spacing: .02em; }
.hero h1 small { display: block; font-size: 15px; color: var(--ink-sub); font-weight: 700; letter-spacing: .12em; margin-top: 8px; }
.hero .lead { font-size: clamp(18px, 2.6vw, 22px); font-weight: 700; margin: 18px 0 8px; }
.hero p { color: var(--ink-sub); margin: 0 0 26px; }
.hero-art { position: relative; }
.hero-art img { width: 100%; animation: float 5s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-8px); } }
@media (prefers-reduced-motion: reduce) { .hero-art img { animation: none; } }
@media (max-width: 760px) {
  .hero { padding-top: 32px; }
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 420px; margin: 0 auto; }
}

/* ---------- sections ---------- */
section { padding: 64px 0; }
.section-alt { background: var(--surface-sub); }
.eyebrow { color: var(--primary-ink); font-weight: 800; font-size: 13px; letter-spacing: .15em; margin: 0 0 4px; }
h2 { font-size: clamp(26px, 4.4vw, 36px); line-height: 1.35; margin: 0 0 14px; font-weight: 900; }
.section-lead { color: var(--ink-sub); margin: 0 0 32px; max-width: 640px; }
.center { text-align: center; }
.center .section-lead { margin-left: auto; margin-right: auto; }

/* rules */
.rules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.rule { background: var(--surface); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); text-align: center; display: flex; flex-direction: column; justify-content: center; }
.rule h3 { margin: 12px 0 4px; font-size: 18px; }
.rule p { margin: 0; color: var(--ink-sub); font-size: 14px; }
.mini-grid { display: grid; gap: 4px; margin: 0 auto; width: max-content; }
.mini-grid.row { grid-template-columns: repeat(9, 26px); }
.mini-grid.col { grid-template-columns: 15px; gap: 1px; }
.mini-grid.box { grid-template-columns: repeat(3, 40px); }
.mini-grid img { width: 100%; border-radius: 6px; }
.mini-grid.col img { border-radius: 4px; }
.mini-grid.box img { border-radius: 9px; }
@media (max-width: 760px) {
  .rules { grid-template-columns: 1fr; }
  .mini-grid.row { grid-template-columns: repeat(9, 28px); }
}

/* cats */
.cats { display: grid; grid-template-columns: repeat(9, 1fr); gap: 10px; }
.cat { text-align: center; font-size: 13px; font-weight: 700; color: var(--ink-sub); }
.cat img { width: 100%; max-width: 96px; margin: 0 auto 6px; background: var(--surface); border-radius: 20px; box-shadow: var(--shadow); transition: transform .2s ease; }
.cat img:hover { transform: rotate(-6deg) scale(1.06); }
@media (max-width: 760px) { .cats { grid-template-columns: repeat(3, 1fr); max-width: 360px; margin: 0 auto; } }

/* features */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature { background: var(--surface); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.feature .thumb { aspect-ratio: 16 / 10; background: var(--bg-accent); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.feature .thumb img { width: 100%; height: 100%; object-fit: cover; }
.feature .thumb img.contain { width: auto; height: 72%; object-fit: contain; }
.feature .body { padding: 18px 20px 22px; }
.feature h3 { margin: 0 0 6px; font-size: 18px; }
.feature p { margin: 0; color: var(--ink-sub); font-size: 14px; }
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }

/* costumes */
.costumes { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.costumes figure { margin: 0; width: 92px; text-align: center; font-size: 12px; color: var(--ink-sub); font-weight: 700; }
.costumes img { width: 92px; height: 92px; background: var(--surface); border-radius: 20px; box-shadow: var(--shadow); margin-bottom: 4px; }

/* plans */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.plan { background: var(--surface); border-radius: var(--radius); padding: 26px 24px; box-shadow: var(--shadow); border: 2px solid transparent; }
.plan.is-featured { border-color: var(--primary); }
.plan .tag { display: inline-block; background: var(--primary); color: #fff; font-size: 12px; font-weight: 800; padding: 2px 12px; border-radius: 999px; margin-bottom: 8px; }
.plan h3 { margin: 0; font-size: 20px; }
.plan .price { font-size: 26px; font-weight: 900; margin: 6px 0 14px; }
.plan .price small { font-size: 13px; color: var(--ink-sub); font-weight: 700; }
.plan ul { margin: 0; padding: 0; list-style: none; font-size: 14px; }
.plan li { padding: 5px 0 5px 26px; position: relative; border-top: 1px dashed var(--line); }
.plan li::before { content: "🐾"; position: absolute; left: 0; font-size: 13px; }
.note { font-size: 12px; color: var(--ink-sub); margin-top: 18px; }
@media (max-width: 860px) { .plans { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }

/* faq */
.faq { max-width: 760px; margin: 0 auto; }
.faq details { background: var(--surface); border-radius: 16px; padding: 4px 20px; margin-bottom: 12px; box-shadow: var(--shadow); }
.faq summary { cursor: pointer; font-weight: 800; padding: 14px 0; list-style: none; position: relative; padding-right: 28px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 10px; font-size: 22px; color: var(--primary-ink); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 16px; color: var(--ink-sub); font-size: 15px; }

/* cta */
.cta { text-align: center; }
.cta img { width: 120px; margin: 0 auto 12px; }
.cta .store-buttons { justify-content: center; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0 40px; font-size: 13px; color: var(--ink-sub); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.site-footer a { color: var(--ink-sub); text-decoration: none; }
.site-footer a:hover { color: var(--ink); text-decoration: underline; }

/* ---------- legal pages ---------- */
.legal { padding: 40px 0 72px; }
.legal .wrap { max-width: 800px; }
.legal .back { display: inline-block; font-size: 14px; font-weight: 700; text-decoration: none; margin-bottom: 18px; }
.legal h1 { font-size: clamp(26px, 5vw, 34px); line-height: 1.35; margin: 0 0 8px; font-weight: 900; }
.legal .meta { color: var(--ink-sub); font-size: 13px; margin: 0 0 28px; }
.legal .doc { background: var(--surface); border-radius: var(--radius); padding: clamp(20px, 5vw, 44px); box-shadow: var(--shadow); }
.legal h2 { font-size: 19px; margin: 34px 0 10px; padding-left: 12px; border-left: 5px solid var(--primary); line-height: 1.5; }
.legal h2:first-of-type { margin-top: 8px; }
.legal h3 { font-size: 16px; margin: 20px 0 6px; }
.legal p, .legal li { font-size: 15px; }
.legal ol, .legal ul { padding-left: 1.4em; }
.legal li { margin-bottom: 6px; }
.toc { background: var(--surface-sub); border-radius: 14px; padding: 14px 20px; margin: 0 0 8px; }
.toc ol { margin: 0; columns: 2; column-gap: 28px; }
.toc a { text-decoration: none; }
@media (max-width: 560px) { .toc ol { columns: 1; } }
.table-scroll { overflow-x: auto; margin: 10px 0 14px; }
.legal table { border-collapse: collapse; width: 100%; font-size: 14px; }
.legal th, .legal td { border: 1px solid var(--line); padding: 10px 12px; vertical-align: top; text-align: left; }
.legal thead th { background: var(--surface-sub); white-space: nowrap; }
.legal .kv th { width: 30%; background: var(--surface-sub); }
@media (max-width: 560px) {
  .legal .kv th, .legal .kv td { display: block; width: 100%; }
  .legal .kv th { border-bottom: 0; }
}
.legal .data-table { min-width: 620px; }
.end { text-align: right; margin-top: 28px; }