/* =========================================================
   わくわくまなびランド - 共通スタイル
   カラーパレット:
     --pink-main:     #FF6BAD  (メインピンク)
     --pink-soft:     #FF8FAB  (ソフトピンク)
     --pink-pale:     #FFD6E8  (ペールピンク)
     --purple:        #9C1B5C  (濃いピンク/紫 - 文字)
     --sky:           #B3E5FC  (背景の空色)
     --rainbow-r:     #FF8A8A
     --rainbow-y:     #FFE27A
     --rainbow-g:     #A8E6A3
     --rainbow-b:     #89CFF0
     --rainbow-p:     #C5A9E8
   ========================================================= */

:root {
  --pink-main:  #FF6BAD;
  --pink-soft:  #FF8FAB;
  --pink-pale:  #FFD6E8;
  --purple:     #9C1B5C;
  --text-dark:  #333355;
  --sky:        #B3E5FC;
  --sky-light:  #E3F6FD;
  --rainbow-r:  #FF8A8A;
  --rainbow-y:  #FFE27A;
  --rainbow-g:  #A8E6A3;
  --rainbow-b:  #89CFF0;
  --rainbow-p:  #C5A9E8;
  --shadow-pink: 0 8px 24px rgba(255, 143, 171, 0.35);
  --radius-lg: 24px;
  --radius-md: 16px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Hiragino Maru Gothic ProN", "Rounded Mplus 1c",
               "M PLUS Rounded 1c", "Noto Sans JP", "Yu Gothic",
               "メイリオ", sans-serif;
  color: var(--text-dark);
  line-height: 1.75;
  background: linear-gradient(180deg, var(--sky) 0%, var(--sky-light) 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* -------- 背景の雲 & 星（装飾） -------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(circle at 10% 15%, rgba(255,255,255,0.9) 0 18px, transparent 19px),
    radial-gradient(circle at 85% 12%, rgba(255,255,255,0.75) 0 22px, transparent 23px),
    radial-gradient(circle at 20% 85%, rgba(255,255,255,0.65) 0 16px, transparent 17px),
    radial-gradient(circle at 70% 75%, rgba(255,255,255,0.8) 0 20px, transparent 21px);
  pointer-events: none;
  z-index: -1;
  filter: blur(1px);
}

/* -------- ヘッダー -------- */
.site-header {
  background: linear-gradient(135deg, var(--pink-soft), var(--pink-main));
  padding: 20px 24px;
  box-shadow: var(--shadow-pink);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .inner {
  max-width: 1040px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.logo-link {
  text-decoration: none;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 1px;
  text-shadow: 0 2px 6px rgba(156, 27, 92, 0.4);
}

.logo-link .logo-emoji {
  font-size: 28px;
  filter: drop-shadow(0 2px 2px rgba(0,0,0,0.15));
}

.site-nav ul {
  display: flex;
  gap: 6px;
  list-style: none;
  flex-wrap: wrap;
  justify-content: center;
}

.site-nav a {
  display: inline-block;
  padding: 8px 16px;
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 15px;
  border-radius: 999px;
  background: rgba(255,255,255,0.18);
  transition: background .2s, transform .2s;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: #fff;
  color: var(--purple);
  transform: translateY(-2px);
}

/* -------- メイン -------- */
main {
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 20px 60px;
}

.hero {
  text-align: center;
  padding: 60px 24px 48px;
  background: rgba(255,255,255,0.92);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-pink);
  margin-bottom: 40px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -60px; left: -60px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--rainbow-y) 0%, transparent 70%);
  opacity: 0.6;
}
.hero::after {
  content: "";
  position: absolute;
  bottom: -60px; right: -60px;
  width: 220px; height: 220px;
  background: radial-gradient(circle, var(--pink-pale) 0%, transparent 70%);
}

.hero h1 {
  color: var(--purple);
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 900;
  letter-spacing: 2px;
  margin-bottom: 14px;
  text-shadow: 0 2px 4px rgba(255,255,255,0.9);
  position: relative;
}

.hero .tagline {
  color: var(--pink-main);
  font-size: clamp(16px, 3vw, 20px);
  font-weight: 700;
  margin-bottom: 24px;
  position: relative;
}

.hero .lead {
  color: var(--text-dark);
  max-width: 640px;
  margin: 0 auto 28px;
  font-size: 16px;
  position: relative;
}

.badge-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--pink-pale);
  color: var(--purple);
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  border: 2px solid var(--pink-soft);
}

/* -------- レインボー区切り線 -------- */
.rainbow-divider {
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--rainbow-r),
    var(--rainbow-y),
    var(--rainbow-g),
    var(--rainbow-b),
    var(--rainbow-p)
  );
  margin: 40px auto;
  max-width: 200px;
  opacity: 0.75;
}

/* -------- セクション -------- */
.section {
  background: rgba(255,255,255,0.92);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-pink);
}

.section h2 {
  color: var(--purple);
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 900;
  margin-bottom: 20px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.section h2::before {
  content: "";
  display: inline-block;
  width: 12px; height: 12px;
  background: var(--pink-main);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--pink-pale);
}

.section h3 {
  color: var(--pink-main);
  font-size: 20px;
  margin: 28px 0 10px;
  font-weight: 800;
}

.section p { margin-bottom: 14px; }
.section ul, .section ol { margin: 0 0 16px 24px; }
.section li { margin-bottom: 6px; }

/* -------- 機能カード -------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.feature-card {
  background: #fff;
  border: 3px solid var(--pink-pale);
  border-radius: var(--radius-md);
  padding: 20px 14px;
  text-align: center;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--pink-main);
  box-shadow: 0 10px 20px rgba(255, 107, 173, 0.25);
}

.feature-card .emoji {
  font-size: 40px;
  display: block;
  margin-bottom: 8px;
  line-height: 1;
}

.feature-card .title {
  color: var(--purple);
  font-weight: 800;
  font-size: 15px;
}

.feature-card .title small {
  display: block;
  margin-top: 4px;
  color: #8a6d80;
  font-weight: 600;
  font-size: 11px;
  line-height: 1.4;
}

/* -------- ボタン -------- */
.btn {
  display: inline-block;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--pink-soft), var(--pink-main));
  color: #fff;
  font-weight: 800;
  text-decoration: none;
  border-radius: 999px;
  border: none;
  font-size: 16px;
  cursor: pointer;
  box-shadow: var(--shadow-pink);
  transition: transform .15s, box-shadow .2s;
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 107, 173, 0.45);
}
.btn.btn-outline {
  background: #fff;
  color: var(--pink-main);
  border: 3px solid var(--pink-main);
  box-shadow: none;
}

/* -------- フォーム -------- */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-weight: 700;
  color: var(--purple);
  margin-bottom: 6px;
}
.form-group .required {
  color: var(--pink-main);
  margin-left: 4px;
  font-size: 12px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 2px solid var(--pink-pale);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: inherit;
  background: #fff;
  color: var(--text-dark);
  transition: border-color .15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--pink-main);
  box-shadow: 0 0 0 4px rgba(255, 143, 171, 0.2);
}
.form-group textarea { resize: vertical; min-height: 140px; }

.form-note {
  padding: 14px 18px;
  background: var(--sky-light);
  border-left: 4px solid var(--pink-main);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text-dark);
  margin-bottom: 20px;
}

/* -------- 表（利用規約など） -------- */
.doc-meta {
  font-size: 13px;
  color: #777;
  margin-bottom: 24px;
}

.section.doc p,
.section.doc li {
  font-size: 15px;
  line-height: 1.9;
}

/* -------- フッター -------- */
.site-footer {
  background: linear-gradient(180deg, transparent 0%, rgba(255, 143, 171, 0.15) 100%);
  padding: 40px 20px 30px;
  text-align: center;
  color: var(--text-dark);
  font-size: 13px;
}

.site-footer .footer-logo {
  font-weight: 900;
  color: var(--purple);
  font-size: 18px;
  margin-bottom: 8px;
}

.site-footer a {
  color: var(--pink-main);
  text-decoration: none;
  margin: 0 8px;
}
.site-footer a:hover { text-decoration: underline; }

/* -------- レスポンシブ -------- */
@media (max-width: 640px) {
  .site-header { padding: 14px 16px; }
  .logo-link { font-size: 18px; }
  .site-nav a { font-size: 13px; padding: 6px 12px; }
  main { padding: 24px 14px 40px; }
  .hero { padding: 40px 20px 32px; }
  .section { padding: 28px 20px; }
  .feature-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
  .feature-card .emoji { font-size: 32px; }
}

/* -------- アニメーション -------- */
@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.floaty { animation: floaty 3s ease-in-out infinite; display: inline-block; }