:root {
  --bg: #fbf8f4;
  --paper: #ffffff;
  --ink: #3a3541;
  --muted: #6a6470;
  --primary: #6b5b95;       /* 白文字で十分なコントラスト（約5.9:1） */
  --primary-dark: #4a3d6e;
  --primary-soft: #efeaf5;
  --accent: #c98ba0;        /* 飾り用（見出しの下線など） */
  --mint: #4f7f6e;          /* 白文字で約4.6:1 */
  --sun: #f0e2c8;           /* バッジ。黒系の文字を載せる */
  --radius: 20px;
  --font: "M PLUS Rounded 1c", "Hiragino Maru Gothic ProN", "Hiragino Sans", "Yu Gothic", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--font); line-height: 1.8; }
img, svg { max-width: 100%; height: auto; }
.wrap { width: min(100% - 32px, 960px); margin-inline: auto; }

/* hero */
.hero { padding: 40px 0 56px; background: linear-gradient(180deg, var(--primary-soft), var(--bg)); }
.hero-inner { display: grid; gap: 24px; align-items: center; }
.badge { display: inline-block; padding: 4px 14px; border-radius: 999px; background: var(--sun); font-weight: 700; font-size: 0.85rem; margin: 0 6px 8px 0; }
.brand { font-size: 1rem; font-weight: 700; color: var(--primary); margin: 0 0 4px; }
.hero h1 { font-size: clamp(1.6rem, 5.4vw, 2.1rem); line-height: 1.4; margin: 0 0 12px; text-wrap: balance; }
.hero p { margin: 0 0 20px; color: var(--muted); }
.hero-art { justify-self: center; width: min(100%, 360px); }
@media (min-width: 760px) { .hero-inner { grid-template-columns: 1.2fr 1fr; } }

/* button */
.btn { display: inline-block; padding: 14px 32px; border-radius: 999px; background: var(--primary); color: #fff; font-weight: 700; text-decoration: none; box-shadow: 0 4px 0 var(--primary-dark); transition: transform .1s; }
.btn:hover { transform: translateY(2px); box-shadow: 0 2px 0 var(--primary-dark); }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }

/* sections */
.section { padding: 56px 0; }
.section:nth-of-type(even) { background: var(--paper); }
.section-title { font-size: 1.6rem; margin: 0 0 8px; text-align: center; }
.section-title::after { content: ""; display: block; width: 56px; height: 6px; border-radius: 3px; background: var(--accent); margin: 8px auto 0; }
.lead { text-align: center; color: var(--muted); margin: 0 0 32px; }
.card-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card { background: var(--paper); border: 2px solid var(--primary-soft); border-radius: var(--radius); padding: 20px; }
.section:nth-of-type(even) .card { background: var(--bg); }
.card h3 { margin: 0 0 8px; font-size: 1.05rem; color: var(--primary); }
.card p, .card ul { margin: 0; }
.card ul { padding-left: 1.2em; }

/* steps */
.steps { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); counter-reset: step; }
.step { position: relative; background: var(--paper); border-radius: var(--radius); padding: 24px 20px 20px; border: 2px solid var(--primary-soft); }
.step::before { counter-increment: step; content: counter(step); position: absolute; top: -14px; left: 16px; width: 32px; height: 32px; border-radius: 50%; background: var(--mint); color: #fff; font-weight: 700; display: grid; place-items: center; }
.step h3 { margin: 0 0 6px; }

/* voices */
.voice { display: grid; grid-template-columns: 56px 1fr; gap: 14px; background: var(--paper); border-radius: var(--radius); padding: 20px; border: 2px solid var(--primary-soft); }
.voice-avatar { width: 56px; height: 56px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 700; }
.voice-meta { font-size: 0.85rem; color: var(--muted); margin: 0 0 6px; }
.voice blockquote { margin: 0 0 8px; }
.voice-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; list-style: none; font-size: 0.8rem; }
.voice-tags li { background: var(--primary-soft); border-radius: 999px; padding: 2px 10px; }
.voice-note { text-align: center; font-size: 0.85rem; color: var(--muted); }

/* safety / faq / monitor */
.safety-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.faq details { background: var(--paper); border: 2px solid var(--primary-soft); border-radius: 16px; padding: 14px 18px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq details p { margin: 8px 0 0; color: var(--muted); }
.monitor { text-align: center; background: linear-gradient(180deg, var(--bg), var(--primary-soft)); }
.monitor .btn { margin-top: 16px; font-size: 1.1rem; }
.site-footer { padding: 24px 0 40px; text-align: center; font-size: 0.85rem; color: var(--muted); }

/* privacy page */
.prose { padding: 40px 0 56px; }
.prose h1 { font-size: 1.6rem; margin: 0 0 16px; }
.prose h2 { font-size: 1.15rem; margin: 28px 0 8px; color: var(--primary); }
.prose p, .prose li { color: var(--ink); }
.prose a { color: var(--primary); }

/* links inside prose pages: keep buttons and cards readable */
.prose a.btn { color: #fff; text-decoration: none; }
.prose a.card { display: block; text-decoration: none; color: var(--ink); }
.prose a.card h3 { color: var(--primary); }
.prose a.card p { color: var(--muted); }
.prose a.card:hover { border-color: var(--primary); }
.site-footer a { color: var(--primary); }

/* linked cards anywhere (top page column section) */
a.card { display: block; text-decoration: none; color: var(--ink); }
a.card p { color: var(--muted); }
a.card:hover { border-color: var(--primary); }

.lead a { color: var(--primary); }