/* Purin Bot Studio の公開ページ(アプリと同じ色) */
:root {
  --bg: #15141b;
  --bg-elev: #1c1b23;
  --panel: #201e28;
  --border: #2d2a36;
  --text: #ecebf1;
  --text-dim: #b9b6c4;
  --muted: #8a8698;
  --accent: #e7a6ba;
  --accent-strong: #f0b8c9;
  --accent-bg: #3a2731;
  --accent-border: #8c5a6b;
  --ok: #5fcf8e;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Sans", "Yu Gothic UI", "Segoe UI", "Meiryo", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent-strong); }
.wrap { max-width: 980px; margin: 0 auto; padding: 0 20px; }
.site-header { border-bottom: 1px solid var(--border); background: var(--bg); position: sticky; top: 0; z-index: 2; }
.site-header .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; margin-right: auto; }
.nav { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.nav a { color: var(--text-dim); text-decoration: none; font-size: 14px; }
.nav a:hover { color: var(--text); }
.btn {
  display: inline-block; padding: 12px 22px; border-radius: 10px;
  background: var(--accent); color: #2a1820 !important; font-weight: 700; text-decoration: none;
  border: 1px solid var(--accent);
}
.btn:hover { background: var(--accent-strong); }
.btn.ghost { background: transparent; color: var(--text) !important; border-color: var(--border); }
.btn.ghost:hover { border-color: var(--accent-border); }
.btn.small { padding: 6px 14px; font-size: 14px; }

.hero { padding: 72px 0 40px; text-align: center; }
.hero h1 { font-size: clamp(28px, 5vw, 44px); line-height: 1.35; margin: 0 0 16px; }
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p { color: var(--text-dim); max-width: 640px; margin: 0 auto 28px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero .sub { font-size: 13px; color: var(--muted); margin-top: 14px; }

.mock {
  margin: 40px auto 0; max-width: 760px; border: 1px solid var(--border); border-radius: 14px;
  background: var(--bg-elev); padding: 18px; text-align: left; box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.mock .block { border-radius: 8px; padding: 8px 12px; margin: 6px 0; font-size: 14px; font-weight: 600; width: fit-content; }
.mock .b1 { background: #6b4bb3; }
.mock .b2 { background: #2f7d63; margin-left: 22px; }
.mock .b3 { background: #b0603d; margin-left: 22px; }
.mock .chat { margin-top: 14px; border-top: 1px dashed var(--border); padding-top: 12px; font-size: 14px; color: var(--text-dim); }
.mock .chat b { color: var(--text); }

section { padding: 36px 0; }
section h2 { font-size: 24px; margin: 0 0 18px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.card { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 18px 20px; }
.card h3 { margin: 0 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--text-dim); font-size: 14.5px; }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.steps li { counter-increment: s; background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px 14px 58px; position: relative; }
.steps li::before {
  content: counter(s); position: absolute; left: 16px; top: 14px; width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent-bg); border: 1px solid var(--accent-border); color: var(--accent-strong);
  display: grid; place-items: center; font-weight: 700; font-size: 14px;
}

.doc { padding: 40px 0 56px; max-width: 820px; }
.doc h1 { font-size: 28px; margin: 0 0 8px; }
.doc h2 { font-size: 19px; margin: 32px 0 8px; padding-top: 8px; border-top: 1px solid var(--border); }
.doc .lead { color: var(--text-dim); }
.doc ol, .doc ul { padding-left: 1.4em; }
.doc li { margin: 4px 0; }
.updated { color: var(--muted); font-size: 14px; }

table.kv { width: 100%; border-collapse: collapse; margin-top: 16px; }
table.kv th, table.kv td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--border); }
table.kv th { width: 30%; color: var(--text-dim); font-weight: 600; background: var(--bg-elev); }
@media (max-width: 620px) {
  table.kv th, table.kv td { display: block; width: 100%; }
  table.kv th { border-bottom: none; padding-bottom: 4px; }
}

.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-top: 20px; }
.plan { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 22px; }
.plan.featured { border-color: var(--accent-border); }
.plan h3 { margin: 0; font-size: 18px; }
.plan .price { font-size: 34px; font-weight: 800; margin: 10px 0 4px; }
.plan .price small { font-size: 15px; font-weight: 500; color: var(--text-dim); }
.plan ul { padding-left: 1.2em; color: var(--text-dim); font-size: 15px; }
.badge { display: inline-block; font-size: 12px; padding: 1px 9px; border-radius: 999px; background: var(--accent-bg); border: 1px solid var(--accent-border); color: var(--accent-strong); margin-left: 6px; vertical-align: middle; }
.pay { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.pay span { font-size: 13px; padding: 2px 10px; border: 1px solid var(--border); border-radius: 6px; color: var(--text-dim); }
.box { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; }

.site-footer { border-top: 1px solid var(--border); padding: 28px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-bottom: 10px; }
.site-footer a { color: var(--text-dim); text-decoration: none; }
.site-footer a:hover { color: var(--text); text-decoration: underline; }
.site-footer p { margin: 4px 0; }
.site-footer .note { font-size: 12.5px; }
@media (max-width: 620px) {
  .site-header .wrap { flex-wrap: nowrap; min-height: 54px; }
  .nav a:not(.btn) { display: none; }
  .hero { padding-top: 44px; }
}