/* ひらがなならべ!! の Web ページ共通スタイル。
   配色はアプリ本体の AppColor.swift と揃えてある */
:root {
  --bg: #eefada;
  --bg-deep: #cfd9bd;
  --ink: #29301f;
  --muted: #6b7360;
  --card: #ffffff;
  --green: #00cd09;
  --blue: #6686ff;
  --red: #9c0a0d;
  --accent: #33996f;
  --orange: #fa8c1a;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Maru Gothic ProN",
    "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  line-height: 1.8;
  color: var(--ink);
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  background-attachment: fixed;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--accent); }

/* ---------------- ヘッダ ---------------- */

.hero {
  text-align: center;
  padding: 56px 0 32px;
}

.hero img.mascot {
  width: 132px;
  height: auto;
  display: block;
  margin: 0 auto 12px;
}

.hero h1 {
  font-size: clamp(30px, 7vw, 46px);
  margin: 0 0 8px;
  letter-spacing: 0.04em;
}

.hero p.tagline {
  font-size: clamp(15px, 3.4vw, 19px);
  color: var(--muted);
  margin: 0 auto 28px;
  max-width: 30em;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 8px;
}

.badge {
  background: rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
}

/* ---------------- スクリーンショット ---------------- */

.shots {
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 24px 0 8px;
}

.shots figure {
  margin: 0;
  width: min(240px, 42vw);
}

.shots img {
  width: 100%;
  height: auto;
  border-radius: 22px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
  display: block;
  background: var(--card);
}

.shots figcaption {
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  margin-top: 10px;
}

/* ---------------- 特徴カード ---------------- */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 32px 0;
}

.feature {
  background: rgba(255, 255, 255, 0.78);
  border-radius: 22px;
  padding: 22px;
}

.feature h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.feature p {
  margin: 0;
  font-size: 14.5px;
  color: var(--muted);
}

/* ---------------- 文書ページ ---------------- */

.doc {
  background: rgba(255, 255, 255, 0.86);
  border-radius: 22px;
  padding: 28px clamp(20px, 5vw, 40px);
  margin: 32px 0 48px;
}

.doc h1 { font-size: clamp(22px, 5vw, 28px); margin-top: 0; }
.doc h2 { font-size: 18px; margin-top: 32px; }
.doc p, .doc li { font-size: 15px; }
.doc ol, .doc ul { padding-left: 22px; }
.doc li { margin-bottom: 6px; }

.meta {
  color: var(--muted);
  font-size: 13px;
}

/* ---------------- フッタ ---------------- */

footer {
  text-align: center;
  padding: 32px 0 48px;
  font-size: 13.5px;
  color: var(--muted);
}

footer nav {
  display: flex;
  gap: 8px 18px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.lang-switch {
  text-align: right;
  padding-top: 16px;
  font-size: 13px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #23271c;
    --bg-deep: #171a13;
    --ink: #ecefe4;
    --muted: #a8b09c;
    --card: #2c3126;
  }
  .badge, .feature, .doc { background: rgba(255, 255, 255, 0.07); }
  .shots img { background: var(--card); }
}