/* LEADS FIRST CLASS Landing — THINK DESIGN シリーズ共通テーマ(SQUEEZER 準拠) */

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

:root {
  --primary: #1c3d6e;       /* royal navy — ボタン/見出し/アクセント */
  --primary-dark: #13294c;
  --gold: #c19a3e;          /* first-class gold — ワードマーク/ハイライト */
  --gold-soft: #f1e7cc;
  --dark: #101a30;          /* フッター/ロゴ/濃色見出し */
  --text: #384252;
  --muted: #6b7280;
  --border: #e5e8f0;
  --bg: #f2f6fc;            /* cool light paper */
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }

/* ---- ヘッダー ---- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
}
.header-container {
  max-width: 1080px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  font-size: 18px;
  font-weight: 800;
  line-height: 1;
  color: var(--dark);
  letter-spacing: .06em;
}
.logo .light { color: var(--gold); margin-left: .2em; }
nav ul { display: flex; list-style: none; gap: 1.4rem; }
nav a { color: var(--text); font-size: 14px; font-weight: 500; transition: color .2s; }
nav a:hover { color: var(--primary); }
.mobile-menu-toggle { display: none; background: none; border: none; color: var(--dark); font-size: 1.5rem; cursor: pointer; }

/* ---- ボタン ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity .15s, transform .1s, background .15s;
  white-space: nowrap;
  background: var(--primary);
  color: #fff;
  border: 1px solid transparent;
}
.btn:hover { opacity: .9; }
.btn:active { transform: scale(.97); }
.btn-gold { background: linear-gradient(160deg, #d8b45e, var(--gold)); color: #1a1204; }
.btn-outline {
  background: none;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--bg); opacity: 1; }

/* ---- ヒーロー ---- */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #eef3fb 0%, #f8fbff 100%);
  padding: 56px 24px;
}
.hero-inner {
  max-width: 1080px;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.hero-text { text-align: left; }
.hero-text h1 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--dark);
  letter-spacing: .02em;
  margin-bottom: 18px;
}
.hero-text h1 .light { color: var(--primary); }
.hero-text h1 .gold { color: var(--gold); }
.hero-lead {
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 14px;
  line-height: 1.5;
}
.hero-sub { font-size: 15px; color: var(--muted); margin-bottom: 28px; line-height: 1.9; }
.hero-image img { width: 100%; height: auto; animation: heroFloat 4s ease-in-out infinite; }
@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-12px); }
}
@media (prefers-reduced-motion: reduce) { .hero-image img { animation: none; } }

.cta { display: flex; gap: 12px; flex-wrap: wrap; }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .18em;
  color: var(--gold);
  margin-bottom: 14px;
}

/* ---- セクション共通 ---- */
.section { padding: 80px 24px; }
.section--white { background: #fff; }
.section.alt, .section--bg { background: var(--bg); }
.inner { max-width: 1080px; margin: 0 auto; }
.section-title {
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 800;
  color: var(--primary);
  text-align: center;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}
.section-lead { text-align: center; color: var(--muted); font-size: 15px; max-width: 720px; margin: 0 auto 40px; line-height: 1.9; }
.note { text-align: center; font-size: 13px; color: var(--muted); margin-top: 12px; }

/* ---- 特徴カード ---- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 24px;
  text-align: center;
  transition: transform .2s, box-shadow .2s;
}
.section.alt .card { background: #fff; }
.card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(28,61,110,0.16); }
.card .ic { font-size: 36px; margin-bottom: 16px; }
.card h3 { color: var(--dark); font-size: 17px; font-weight: 700; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 14px; line-height: 1.7; }
.card .tag {
  display: inline-block; margin-bottom: 12px; padding: 3px 10px; border-radius: 999px;
  font-size: 11px; font-weight: 700; letter-spacing: .04em;
  background: var(--gold-soft); color: #8a6d1f;
}

/* ---- ステップ ---- */
.steps { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
}
.section.alt .step { background: var(--bg); }
.step .num {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  display: flex; align-items: center; justify-content: center;
}
.step h4 { color: var(--dark); font-size: 15px; margin: 3px 0 4px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.step code { background: #e6edf9; color: var(--primary-dark); padding: 2px 6px; border-radius: 4px; font-size: .9em; }

/* ---- 料金 ---- */
.plans { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; max-width: 720px; margin: 0 auto; }
.plan {
  background: #fff; border: 1px solid var(--border); border-radius: 14px; padding: 30px 26px;
  display: flex; flex-direction: column;
}
.plan.feature { border-color: var(--gold); box-shadow: 0 12px 30px rgba(193,154,62,0.16); position: relative; }
.plan.feature::before {
  content: "PRIORITY"; position: absolute; top: 16px; right: 18px;
  font-size: 11px; font-weight: 700; letter-spacing: .12em; color: var(--gold);
}
.plan .cls { font-size: 12px; font-weight: 700; letter-spacing: .14em; color: var(--muted); }
.plan h3 { font-size: 22px; color: var(--dark); margin: 6px 0 2px; }
.plan .price { font-size: 30px; font-weight: 800; color: var(--primary); margin: 6px 0 2px; }
.plan .price small { font-size: 13px; font-weight: 500; color: var(--muted); }
.plan ul { list-style: none; margin: 16px 0 22px; padding: 0; display: grid; gap: 9px; }
.plan li { font-size: 14px; color: var(--text); padding-left: 22px; position: relative; }
.plan li::before { content: "✓"; position: absolute; left: 0; color: #3c8f6b; font-weight: 800; }
.plan .btn { margin-top: auto; width: 100%; }

/* ---- FAQ ---- */
.faq-item {
  max-width: 760px;
  margin: 0 auto 14px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
}
.section.alt .faq-item { background: var(--bg); }
.faq-item h4 { color: var(--dark); font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.faq-item p { color: var(--muted); font-size: 14px; margin: 0; line-height: 1.8; }

/* ---- フッター ---- */
footer { background: var(--dark); color: #fff; padding: 40px 24px; }
.footer-container {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  text-align: center;
}
.footer-logo { font-size: 20px; font-weight: 800; letter-spacing: .06em; }
.footer-logo .light { color: var(--gold); margin-left: .2em; }
.footer-links { display: flex; gap: 8px 24px; flex-wrap: wrap; justify-content: center; }
.footer-links a { color: #9ca3af; font-size: 13px; }
.footer-links a:hover { color: #fff; }
.copyright { color: #6b7280; font-size: 12px; }
.copyright a { color: #9ca3af; }

/* ---- スクロールアップ ---- */
.scroll-up {
  position: fixed;
  right: 24px; bottom: 24px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  z-index: 90;
}
.scroll-up:hover { background: var(--primary-dark); }

/* ---- レスポンシブ ---- */
@media (max-width: 768px) {
  .mobile-menu-toggle { display: block; order: 3; }
  nav { order: 2; }
  nav ul {
    display: none;
    position: absolute;
    top: 60px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem 24px;
    gap: 1rem;
  }
  nav ul.show { display: flex; }
  .hero-inner { grid-template-columns: 1fr; gap: 36px; }
  .hero-image { order: -1; max-width: 360px; margin: 0 auto; }
  .hero-text { text-align: center; }
  .cta { justify-content: center; }
  .cards { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; max-width: 420px; }
  .section { padding: 56px 20px; }
}