/* Oboeru printables — screen styles. The print sheets keep their own CSS; this is the web copy. */
:root {
  --indigo-900:#1b1f3b; --indigo-700:#2d3561; --indigo-500:#3f4c8a;
  --indigo-300:#7b88b8; --indigo-100:#c8cde6; --indigo-50:#eceef7;
  --verm-600:#c4432b; --verm-500:#e05a3a; --verm-100:#fdddd4;
  --sage-700:#2f6b52; --sage-500:#5b9a7d; --sage-100:#d4eddf;
  --warm-white:#faf9f7; --wg-100:#f2f0ed; --wg-300:#d4d0ca;
  --wg-500:#8a857d; --wg-700:#4a4640; --wg-900:#2a2724;
  --jp:"Noto Sans JP","Hiragino Sans","Yu Gothic",sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--warm-white); color: var(--wg-900);
  font-family: "Inter",-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size: 17px; line-height: 1.6;
}
a { color: var(--indigo-700); }
img { max-width: 100%; height: auto; }

.wrap { width: min(880px, calc(100% - 40px)); margin-inline: auto; }
.wrap-wide { width: min(1180px, calc(100% - 40px)); margin-inline: auto; }

/* ── site chrome ── */
.site-header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  min-height: 76px; border-bottom: 1px solid rgba(212,208,202,.72);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700;
         font-size: 1.08rem; letter-spacing: -.03em; text-decoration: none; color: var(--indigo-900); }
.brand-mark {
  position: relative; display: inline-grid; place-items: center; width: 36px; height: 36px;
  border-radius: 11px; background: linear-gradient(135deg,var(--indigo-500),var(--indigo-700));
  color: #fff; font-family: var(--jp); font-size: 20px; line-height: 1;
}
.brand-mark .spark { position: absolute; top: 7px; right: 8px; width: 7px; height: 7px;
                     border-radius: 50%; background: var(--verm-500); }
.site-header nav { display: flex; align-items: center; gap: 18px; font-size: .95rem; }
.site-header nav a { text-decoration: none; color: var(--wg-700); }
.site-header nav a:hover { color: var(--indigo-700); }
.nav-cta { padding: 8px 15px; border-radius: 999px; background: var(--indigo-900); color: #fff !important; }

footer.site-footer { margin-top: 64px; padding: 28px 0 44px; border-top: 1px solid var(--wg-300);
                     color: var(--wg-500); font-size: .88rem; }
footer.site-footer a { color: var(--wg-700); }

/* ── page head ── */
.crumbs { margin: 26px 0 0; font-size: .85rem; color: var(--wg-500); }
.crumbs a { color: var(--wg-500); }
h1 { font-size: clamp(1.9rem, 5vw, 2.7rem); line-height: 1.12; letter-spacing: -.025em;
     color: var(--indigo-900); margin: 12px 0 10px; font-weight: 700; }
h1 .jp { font-family: var(--jp); }
.lede { font-size: 1.08rem; color: var(--wg-700); margin: 0 0 22px; }

/* ── download call to action ── */
.download {
  display: flex; gap: 20px; align-items: center; flex-wrap: wrap;
  background: var(--indigo-50); border: 1px solid var(--indigo-100);
  border-top: 3px solid var(--indigo-900); border-radius: 4px; padding: 18px 20px; margin-bottom: 30px;
}
.download img { width: 116px; border: 1px solid var(--wg-300); background: #fff; flex: none; }
.download .d-copy { flex: 1 1 260px; }
.download h2 { font-size: 1.1rem; margin: 0 0 4px; color: var(--indigo-900); border: 0; padding: 0; }
.download p { margin: 0 0 12px; font-size: .93rem; color: var(--wg-700); }
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 999px; text-decoration: none;
  background: var(--verm-500); color: #fff; font-weight: 700; font-size: .95rem;
}
.btn:hover { background: var(--verm-600); }
.btn.ghost { background: transparent; color: var(--indigo-700); border: 1.5px solid var(--indigo-300); }

/* ── the sheet content, restyled for reading on a screen ── */
.sheet-content h2 {
  font-size: 1.22rem; font-weight: 700; color: var(--indigo-900); letter-spacing: -.01em;
  margin: 34px 0 12px; padding-left: 11px; border-left: 4px solid var(--verm-500);
}
.sheet-content h2 .rom { font-size: .8rem; }

.rule { border: 1px solid var(--wg-300); border-left: 5px solid var(--indigo-500);
        background: #fff; padding: 12px 16px; margin-bottom: 8px; border-radius: 3px; }
.rule.g2 { border-left-color: var(--sage-500); }
.rule.g3 { border-left-color: var(--verm-500); }
.rule .who { font-weight: 700; color: var(--indigo-700); }
.rule.g2 .who { color: var(--sage-700); }
.rule.g3 .who { color: var(--verm-600); }

.table-wrap { overflow-x: auto; margin: 0 0 6px; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; min-width: 520px; background: #fff; }
table.dense { min-width: 560px; }
th, td { border: 1px solid var(--wg-300); padding: 7px 10px; text-align: center; vertical-align: middle; }
th { background: var(--indigo-50); color: var(--indigo-900); font-size: .82rem; font-weight: 600; }
.row-label { background: var(--indigo-50); color: var(--indigo-700); font-weight: 600; font-size: .82rem; }

.jp { font-family: var(--jp); font-size: 1.1rem; }
table.dense .jp { display: block; font-size: 1.15rem; line-height: 1.2; }
table.dense .rom { display: block; }
.rom { font-size: .78rem; color: var(--wg-500); font-style: italic; }
.en { font-size: .86rem; color: var(--wg-700); }
.hi { color: var(--verm-600); font-weight: 700; background: var(--verm-100); padding: 0 3px; border-radius: 3px; }
.arrow { color: var(--wg-500); width: 34px; }
.tag { font-weight: 700; font-size: .85rem; }
.tag small { display: block; font-weight: 400; font-size: .72rem; opacity: .8; }
.g1cell { background: var(--indigo-50); color: var(--indigo-700); }
.g2cell { background: var(--sage-100); color: var(--sage-700); }
.g3cell { background: var(--verm-100); color: var(--verm-600); }
.note { font-size: .85rem; color: var(--wg-500); margin: 6px 0 0; }

.patterns { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 8px; }
.patterns .pat { border: 1px solid var(--wg-300); border-left: 3px solid var(--indigo-300);
                 background: #fff; padding: 9px 13px; border-radius: 3px; font-size: .95rem; }
.patterns .pat b { font-family: var(--jp); font-weight: 700; color: var(--indigo-900); }

.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin-top: 20px; }
.box { border: 1px solid var(--wg-300); background: #fff; padding: 15px 18px; border-radius: 3px; font-size: .94rem; }
.box.warn { border-color: var(--verm-500); background: #fff8f5; }
.box h3 { font-size: 1rem; margin: 0 0 8px; color: var(--indigo-900); }
.box.warn h3 { color: var(--verm-600); }
.box p { margin: 7px 0; }

/* ── app pitch ── */
.app-cta {
  margin-top: 46px; background: var(--indigo-900); color: #fff; border-radius: 6px;
  padding: 30px 32px; display: flex; gap: 26px; align-items: center; flex-wrap: wrap;
}
.app-cta h2 { font-size: 1.45rem; margin: 0 0 8px; letter-spacing: -.02em; }
.app-cta p { margin: 0; color: var(--indigo-100); flex: 1 1 320px; }
.app-cta .cta-copy { flex: 1 1 340px; }
.app-cta img.badge { height: 54px; width: auto; }
.app-cta .store-row { display: flex; flex-wrap: wrap; align-items: center; gap: 24px; margin-top: 22px; }

/* ── other sheets ── */
.more { margin-top: 46px; }
.more h2 { font-size: 1.3rem; color: var(--indigo-900); margin: 0 0 14px; }
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 16px; }
.card {
  display: block; text-decoration: none; color: inherit; background: #fff;
  border: 1px solid var(--wg-300); border-radius: 5px; overflow: hidden; transition: border-color .15s;
}
.card:hover { border-color: var(--indigo-500); }
.card img { display: block; width: 100%; border-bottom: 1px solid var(--wg-300); }
.card .c-body { padding: 12px 14px; }
.card .c-kicker { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--wg-500); }
.card h3 { font-size: .98rem; margin: 3px 0 5px; color: var(--indigo-900); }
.card p { margin: 0; font-size: .84rem; color: var(--wg-700); line-height: 1.45; }

/* ── hub page ── */
.hub-hero { padding: 40px 0 8px; }
.hub-hero .eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: .78rem;
                     color: var(--verm-600); font-weight: 700; margin: 0 0 10px; }
.hub-hero p.lede { max-width: 660px; }
.series-head { margin: 40px 0 4px; font-size: 1.25rem; color: var(--indigo-900); }
.series-head + p { margin: 0 0 16px; color: var(--wg-700); font-size: .95rem; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .app-cta { padding: 24px 20px; }
  .download { padding: 15px 16px; }
}