/* ==========================================================
   竈猫電信 / KAMANEKO DENSHIN — site stylesheet
   ----------------------------------------------------------
   Single file, no build step. Colors are taken from the logo:
   ink #32241e on off-white #fbfaf6.
   ========================================================== */

:root {
  --bg:        #fbfaf6;   /* off-white, same as the logo background */
  --ink:       #32241e;   /* logo line color */
  --ink-soft:  #5f534d;   /* secondary text */
  --ink-faint: #9a918b;   /* captions, meta */
  --line:      #e4e0d8;   /* hairlines */
  --surface:   #f4f2ec;   /* subtle panel */

  --serif: "Hiragino Mincho ProN", "Hiragino Mincho Pro", "Yu Mincho", "YuMincho",
           "Noto Serif JP", "Noto Serif CJK JP", "Times New Roman", serif;
  --sans:  "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "YuGothic",
           "Noto Sans JP", "Noto Sans CJK JP", -apple-system, BlinkMacSystemFont,
           "Helvetica Neue", Arial, sans-serif;

  --measure: 42rem;       /* max text width */
  --gutter: 1.25rem;
}

/* ---------- reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.9;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex; flex-direction: column;
}
main { flex: 1 0 auto; }
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: underline; text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; letter-spacing: 0.04em; line-height: 1.5; margin: 0; }
p { margin: 0 0 1.4em; }
ul, ol { padding-left: 1.4em; margin: 0 0 1.4em; }
li + li { margin-top: 0.4em; }
hr { border: 0; border-top: 1px solid var(--line); margin: 3rem 0; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- layout ---------- */
.wrap { width: min(100% - 2 * var(--gutter), var(--measure)); margin-inline: auto; }
.wrap--wide { width: min(100% - 2 * var(--gutter), 60rem); margin-inline: auto; }

.site-header {
  border-bottom: 1px solid var(--line);
}
.site-header .wrap--wide {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 1rem 0;
}
.brand { display: inline-flex; align-items: center; gap: 0.7rem; text-decoration: none; }
.brand img { width: 2.2rem; height: auto; }
.brand span { font-family: var(--serif); font-size: 1.05rem; letter-spacing: 0.12em; white-space: nowrap; }
@media (max-width: 48em) {
  .site-header .wrap--wide { flex-direction: column; align-items: flex-start; gap: 0.6rem; padding: 0.9rem 0; }
  .nav { gap: 0.1rem 1.1rem; }
  .nav a { font-size: 0.88rem; }
}

.nav { display: flex; flex-wrap: wrap; gap: 0.2rem 1.4rem; margin: 0; padding: 0; list-style: none; }
.nav a { text-decoration: none; font-size: 0.92rem; color: var(--ink-soft); padding: 0.3em 0; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); border-bottom: 1px solid var(--ink); }
.lang { font-size: 0.82rem; color: var(--ink-faint); text-decoration: none; letter-spacing: 0.08em; }
.lang:hover { color: var(--ink); }

main { padding: 4rem 0 5rem; }
@media (min-width: 48em) { main { padding: 5.5rem 0 7rem; } }

.site-footer {
  border-top: 1px solid var(--line);
  padding: 3rem 0 3.5rem;
  color: var(--ink-faint);
  font-size: 0.85rem;
}
.site-footer .wrap--wide {
  display: flex; flex-wrap: wrap; gap: 1.5rem 3rem;
  align-items: flex-end; justify-content: space-between;
}
.site-footer img { width: 9rem; height: auto; opacity: 0.9; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.3rem 1.4rem; }
.site-footer li { margin: 0; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }
.site-footer small { display: block; margin-top: 0.8rem; }

/* ---------- hero (top page) ---------- */
.hero { text-align: center; padding-bottom: 4rem; }
.hero__logo { width: min(100%, 26rem); margin: 0 auto 2.5rem; }
.hero h1 { font-size: 1.75rem; letter-spacing: 0.2em; }
.hero .en { font-family: var(--serif); letter-spacing: 0.28em; font-size: 0.85rem; color: var(--ink-soft); margin: 0.6rem 0 2rem; }
.hero .lead { font-size: 1.02rem; color: var(--ink-soft); max-width: 32rem; margin-inline: auto; }

/* ---------- sections & typography ---------- */
.section { padding: 2.5rem 0; }
.section + .section { border-top: 1px solid var(--line); }
.section h2 { font-size: 1.3rem; margin-bottom: 1.4rem; }
.page-title { font-size: 1.7rem; margin-bottom: 0.5rem; }
.page-title + .sub { color: var(--ink-faint); font-family: var(--serif); letter-spacing: 0.18em; font-size: 0.82rem; margin-bottom: 3rem; }
h3 { font-size: 1.08rem; margin: 2.2rem 0 0.8rem; }
.meta { color: var(--ink-faint); font-size: 0.85rem; }
.note { color: var(--ink-soft); font-size: 0.92rem; }

/* definition list used on 事業者情報 */
.dl { margin: 0; display: grid; grid-template-columns: 1fr; gap: 0; }
.dl > div { display: grid; grid-template-columns: 9rem 1fr; gap: 1rem; padding: 1rem 0; border-top: 1px solid var(--line); }
.dl > div:last-child { border-bottom: 1px solid var(--line); }
.dl dt { color: var(--ink-soft); font-size: 0.9rem; }
.dl dd { margin: 0; }
@media (max-width: 36em) { .dl > div { grid-template-columns: 1fr; gap: 0.2rem; } }

/* cards (apps) */
.cards { display: grid; gap: 1.25rem; grid-template-columns: 1fr; padding: 0; margin: 0; list-style: none; }
@media (min-width: 40em) { .cards { grid-template-columns: repeat(2, 1fr); } }
.card { border: 1px solid var(--line); padding: 1.5rem; background: var(--bg); }
.card h3 { margin: 0 0 0.4rem; }
.card p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }
.card a { text-decoration: none; }
.card a:hover h3 { text-decoration: underline; text-underline-offset: 0.25em; }
.card--empty { grid-column: 1 / -1; color: var(--ink-faint); text-align: center; padding: 3rem 1.5rem; border-style: dashed; }
.tag { display: inline-block; font-size: 0.75rem; letter-spacing: 0.1em; color: var(--ink-faint); border: 1px solid var(--line); padding: 0.1em 0.6em; margin-bottom: 0.7rem; }

/* contact */
.contact-mail { font-family: var(--serif); font-size: 1.25rem; letter-spacing: 0.04em; word-break: break-all; }
.btn {
  display: inline-block; border: 1px solid var(--ink); padding: 0.7em 1.6em;
  text-decoration: none; font-size: 0.95rem; letter-spacing: 0.08em;
}
.btn:hover { background: var(--ink); color: var(--bg); }

/* link list (e.g. privacy for each app) */
.linklist { list-style: none; padding: 0; margin: 0; }
.linklist li { padding: 0.8rem 0; border-top: 1px solid var(--line); margin: 0; }
.linklist li:last-child { border-bottom: 1px solid var(--line); }

/* 404 */
.notfound { text-align: center; }
.notfound img { width: 9rem; margin: 0 auto 2rem; opacity: 0.9; }

/* print */
@media print { .site-header, .site-footer { display: none; } main { padding: 0; } }