/* Ieru English blog stylesheet. Generated pages under /blog/ reference this
   file as ../blog.css?v=blog-1; bump the cache-buster together with visual
   changes. Design source: approved article mock v6 (white-only, colored
   chips, step cards, details/summary reveal). */

:root {
  --bg: #ffffff;
  --surface: #f7f8fc;
  --ink: #26244e;
  --ink-2: #5a5780;
  --ink-3: #9a98b0;
  --line: #ebebf3;
  --navy: #151050;
  --sky: #3b82f6;
  --sky-bg: #eaf2ff;
  --sun: #ffcf33;
  --sun-bg: #fff6d9;
  --coral: #ff5d54;
  --coral-bg: #ffecea;
  --mint: #10b981;
  --mint-bg: #e7f8f1;
  --card: #ffffff;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", system-ui, sans-serif;
  font-size: 17.5px;
  line-height: 1.95;
}
header.site { border-bottom: 1px solid var(--line); }
.site-in {
  max-width: 42rem;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  font-weight: 800;
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.site a.trial {
  font-size: 13px;
  color: #fff;
  text-decoration: none;
  background: var(--coral);
  border-radius: 99px;
  padding: 7px 16px;
  font-weight: 800;
}
.hero {
  max-width: 42rem;
  margin: 0 auto;
  padding: 30px 20px 6px;
  position: relative;
}
.hero .dots {
  position: absolute;
  right: 24px;
  top: 18px;
  font-size: 20px;
  letter-spacing: 6px;
  user-select: none;
}
.crumb { font-size: 12px; color: var(--ink-3); margin: 0 0 8px; }
.crumb a { color: var(--ink-3); }
h1 {
  font-size: 28px;
  line-height: 1.5;
  margin: 0 0 8px;
  font-weight: 800;
  text-wrap: balance;
}
h1 .u { box-shadow: inset 0 -0.45em 0 var(--sun); }
.meta { font-size: 12.5px; color: var(--ink-3); margin-bottom: 6px; }
main { max-width: 42rem; margin: 0 auto; padding: 10px 20px 72px; }
.lead { font-size: 18px; margin: 14px 0 22px; }
p { margin: 0 0 18px; }
b { font-weight: 800; }
h2 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  line-height: 1.55;
  margin: 46px 0 14px;
  font-weight: 800;
}
.chip {
  flex: none;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 14px;
  font-weight: 800;
}
.chip.c1 { background: var(--sky); }
.chip.c2 { background: var(--coral); }
.chip.c3 { background: var(--mint); }
mark {
  background: linear-gradient(transparent 58%, var(--sun) 58%, var(--sun) 94%, transparent 94%);
  color: inherit;
  padding: 0 1px;
  font-weight: 700;
}
sup.fn { font-size: 10.5px; color: var(--ink-3); font-weight: 600; }
sup.fn a { color: var(--ink-3); text-decoration: none; }
.speech {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--surface);
  border-radius: 16px;
  padding: 16px 18px;
  margin: 22px 0;
}
.speech svg { flex: none; }
.speech p { margin: 0; font-size: 15.5px; color: var(--ink-2); }
.point {
  background: var(--mint-bg);
  border-radius: 14px;
  padding: 16px 20px;
  margin: 24px 0;
  font-size: 16.5px;
  font-weight: 600;
}
.point .em { color: var(--mint); font-weight: 800; }
.steps { display: grid; gap: 10px; margin: 22px 0; }
.step {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 16px 18px;
  box-shadow: 0 2px 8px rgba(38, 36, 78, 0.05);
}
.step .no {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
}
.step:nth-child(1) .no { background: var(--sky); }
.step:nth-child(2) .no { background: var(--coral); }
.step:nth-child(3) .no { background: var(--mint); }
.step h3 { margin: 0 0 2px; font-size: 16.5px; }
.step p { margin: 0; font-size: 14px; color: var(--ink-2); }
.try {
  border: 2px solid var(--sky);
  border-radius: 18px;
  padding: 20px 22px;
  margin: 30px 0;
  background: var(--sky-bg);
}
.try .tag {
  display: inline-block;
  background: var(--sky);
  color: #fff;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.06em;
  border-radius: 99px;
  padding: 3px 12px;
  margin-bottom: 8px;
}
.try h3 { margin: 0 0 4px; font-size: 17.5px; }
.try .sub { font-size: 13px; color: var(--ink-2); margin-bottom: 12px; }
.qcard {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px;
}
.qcard .ja { font-size: 21px; font-weight: 800; margin: 0 0 12px; }
.qcard details summary {
  cursor: pointer;
  list-style: none;
  display: inline-block;
  background: var(--navy);
  color: #fff;
  border-radius: 99px;
  padding: 8px 20px;
  font-size: 13.5px;
  font-weight: 800;
  user-select: none;
}
.qcard details summary::-webkit-details-marker { display: none; }
.qcard .en { margin-top: 12px; font-size: 21px; font-weight: 800; color: var(--mint); }
.qcard .alt { font-size: 13.5px; color: var(--ink-2); margin-top: 2px; }
.qcard .tip { font-size: 13px; color: var(--ink-3); margin-top: 6px; }
.cta {
  margin: 44px 0 0;
  background: var(--navy);
  border-radius: 22px;
  padding: 30px 24px;
  text-align: center;
}
.cta .face { margin-bottom: 12px; }
.cta h3 { margin: 0 0 6px; font-size: 18.5px; color: #fff; }
.cta p { margin: 0 0 16px; font-size: 13.5px; color: #cfcbee; }
.cta a {
  display: inline-block;
  background: var(--coral);
  color: #fff;
  text-decoration: none;
  border-radius: 99px;
  padding: 14px 34px;
  font-size: 15.5px;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(255, 93, 84, 0.4);
}
.cta .sub { font-size: 11.5px; color: #a5a0d6; margin-top: 12px; }
.author {
  display: flex;
  gap: 14px;
  align-items: center;
  background: var(--surface);
  border-radius: 16px;
  padding: 16px 18px;
  margin: 40px 0 0;
}
.author svg { flex: none; }
.author .who { flex: 1; }
.author .name { font-size: 14px; font-weight: 800; margin: 0; }
.author .bio { font-size: 12.5px; color: var(--ink-2); line-height: 1.6; margin: 0; }
.author .follow {
  flex: none;
  background: #000;
  color: #fff;
  text-decoration: none;
  border-radius: 99px;
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 800;
}
@media (max-width: 560px) {
  .author { flex-wrap: wrap; }
  .author .follow { width: 100%; text-align: center; }
}
.postnav { display: flex; gap: 10px; margin: 40px 0 0; }
.postnav a {
  flex: 1;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--ink);
  background: var(--card);
}
.postnav .dir {
  font-size: 11px;
  color: var(--ink-3);
  font-weight: 700;
  letter-spacing: 0.06em;
}
.postnav .t {
  font-size: 13.5px;
  font-weight: 700;
  line-height: 1.5;
  margin-top: 2px;
  display: block;
}
.postnav a.next { text-align: right; }
.reco { margin-top: 36px; }
.reco h3 {
  font-size: 15px;
  margin: 0 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.reco h3::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: var(--sun);
}
.reco-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.reco a {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  text-decoration: none;
  color: var(--ink);
  background: var(--card);
  box-shadow: 0 2px 8px rgba(38, 36, 78, 0.04);
}
.reco .t {
  display: block;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.55;
  margin-top: 3px;
}
.reco .m { display: block; font-size: 11.5px; color: var(--ink-3); margin-top: 6px; }
@media (max-width: 560px) {
  .reco-grid { grid-template-columns: 1fr; }
  .postnav { flex-direction: column; }
}
.posts { display: grid; gap: 12px; margin: 8px 0 0; }
.posts a {
  display: block;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--ink);
  background: var(--card);
  box-shadow: 0 2px 8px rgba(38, 36, 78, 0.04);
}
.posts .m { display: block; font-size: 12px; color: var(--ink-3); }
.posts .t {
  display: block;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.55;
  margin-top: 4px;
}
.posts .ex {
  display: block;
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.75;
  margin-top: 6px;
}
.fns {
  margin-top: 52px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  font-size: 12.5px;
  color: var(--ink-3);
  line-height: 1.7;
}
.fns h3 { font-size: 11.5px; letter-spacing: 0.08em; margin: 0 0 6px; }
.fns ol { margin: 0; padding-left: 18px; }
footer.site-f { border-top: 1px solid var(--line); }
.site-f-in {
  max-width: 42rem;
  margin: 0 auto;
  padding: 20px;
  font-size: 12px;
  color: var(--ink-3);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.site-f-in a { color: var(--ink-3); }
@media (max-width: 560px) {
  body { font-size: 16.5px; }
  h1 { font-size: 24px; }
}