/* =========================================================
   passlo 公式サイト 共通スタイル
   デザイン方針: 信頼・クリーン系（白背景・余白多め・青紫グラデは要所だけ）
   ブランドグラデ: #67C6FF → #A08DFF → #B17CFF
   ========================================================= */

/* ---------- デザイントークン ---------- */
:root {
  /* ブランドカラー */
  --c-cyan: #67C6FF;
  --c-purple: #A08DFF;
  --c-deep: #B17CFF;
  --gradient: linear-gradient(135deg, var(--c-cyan) 0%, var(--c-purple) 55%, var(--c-deep) 100%);
  --gradient-soft: linear-gradient(135deg, rgba(103,198,255,.12) 0%, rgba(160,141,255,.12) 55%, rgba(177,124,255,.12) 100%);

  /* テキスト・背景（真っ黒を避け濃いネイビーグレー） */
  --c-ink: #1d2433;
  --c-ink-soft: #4a5468;
  --c-ink-faint: #7b8499;
  --c-bg: #ffffff;
  --c-bg-soft: #f6f8fb;
  --c-border: #e7ebf2;
  --c-card: #ffffff;

  /* 角丸・影 */
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(29,36,51,.04), 0 2px 8px rgba(29,36,51,.05);
  --shadow-md: 0 4px 12px rgba(29,36,51,.06), 0 12px 32px rgba(29,36,51,.07);

  /* レイアウト */
  --maxw: 1120px;
  --gutter: 24px;

  /* フォント */
  --font: "Inter", "Helvetica Neue", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
}

/* ---------- リセット ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-ink);
  background: var(--c-bg);
  line-height: 1.75;
  font-size: 16px;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

/* ---------- 共通レイアウト ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: 88px 0; }
.section--soft { background: var(--c-bg-soft); }
.center { text-align: center; }
.lead { color: var(--c-ink-soft); font-size: 1.125rem; max-width: 640px; }
.center .lead { margin-left: auto; margin-right: auto; }

/* 見出し */
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--c-purple); margin-bottom: 14px;
}
h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); font-weight: 800; line-height: 1.2; letter-spacing: -.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); font-weight: 800; line-height: 1.25; letter-spacing: -.01em; }
h3 { font-size: 1.2rem; font-weight: 700; }
.section-head { margin-bottom: 48px; }

/* グラデーション文字 */
.grad-text {
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px; border-radius: 999px; font-weight: 700; font-size: .98rem;
  cursor: pointer; border: 1px solid transparent; transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn--primary { background: var(--gradient); color: #fff; box-shadow: 0 6px 18px rgba(160,141,255,.35); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 10px 26px rgba(160,141,255,.45); }
.btn--ghost { background: #fff; color: var(--c-ink); border-color: var(--c-border); box-shadow: var(--shadow-sm); }
.btn--ghost:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--lg { padding: 16px 34px; font-size: 1.05rem; }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; }
.center .btn-row { justify-content: center; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.82); backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--c-border);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.25rem; letter-spacing: -.01em; }
.brand img { width: 32px; height: 32px; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--c-ink-soft); font-weight: 600; font-size: .95rem; transition: color .15s; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--c-ink); }
.header-actions { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--c-ink); margin: 5px 0; border-radius: 2px; transition: .2s; }

/* ---------- ヒーロー ---------- */
.hero { position: relative; padding: 80px 0 72px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -20% 30% auto -10%; height: 520px;
  background: radial-gradient(50% 50% at 50% 50%, rgba(160,141,255,.22), transparent 70%);
  z-index: 0; pointer-events: none;
}
.hero .container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero__copy h1 { margin-bottom: 22px; }
.hero__copy .lead { margin-bottom: 32px; }
.hero__media img { border-radius: var(--r-lg); box-shadow: var(--shadow-md); border: 1px solid var(--c-border); }

/* ---------- 信頼バッジ帯 ---------- */
.trustbar { border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); background: var(--c-bg-soft); }
.trustbar ul { display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; padding: 26px 0; }
.trustbar li { display: flex; align-items: center; gap: 10px; color: var(--c-ink-soft); font-weight: 600; font-size: .95rem; }
.trustbar svg { width: 22px; height: 22px; color: var(--c-purple); flex-shrink: 0; }

/* ---------- カードグリッド ---------- */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--r-md);
  padding: 28px; box-shadow: var(--shadow-sm); transition: transform .15s ease, box-shadow .15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card .icon {
  width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
  background: var(--gradient-soft); color: var(--c-purple); margin-bottom: 16px;
}
.card .icon svg { width: 24px; height: 24px; }
.card h3 { margin-bottom: 8px; }
.card p { color: var(--c-ink-soft); font-size: .96rem; }

/* ---------- 機能（ジグザグ） ---------- */
.feature-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; margin-bottom: 72px; }
.feature-row:nth-child(even) .feature-row__media { order: -1; }
.feature-row__media img { border-radius: var(--r-lg); box-shadow: var(--shadow-md); border: 1px solid var(--c-border); }
.feature-row h3 { font-size: 1.5rem; margin-bottom: 12px; }
.feature-row p { color: var(--c-ink-soft); }

/* ---------- 図解（ゼロ知識フロー） ---------- */
.flow { display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; margin-top: 16px; }
.flow__step { text-align: center; max-width: 200px; }
.flow__icon { width: 72px; height: 72px; margin: 0 auto 14px; border-radius: 18px; display: grid; place-items: center; background: var(--gradient-soft); color: var(--c-purple); }
.flow__icon svg { width: 36px; height: 36px; }
.flow__step h4 { font-weight: 700; margin-bottom: 6px; }
.flow__step p { color: var(--c-ink-soft); font-size: .9rem; }
.flow__arrow { color: var(--c-ink-faint); font-size: 1.5rem; }

/* ---------- 料金 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
/* 5プラン: 既定は5列（広い画面用に専用コンテナで幅を確保）。中間幅で3列・2列へ段階的に折り返す */
.price-grid--5 { grid-template-columns: repeat(5, 1fr); gap: 16px; }
.price-grid--5 .price-card { padding: 24px 20px; }
.price-grid--5 .price-card .price { font-size: 1.9rem; }
.price-grid--5 .price-card .price small { font-size: .8rem; }
.price-grid--5 .price-card ul.feats li { font-size: .86rem; }
/* 5プランのセクションだけ少し広いコンテナで、5枚を1段に収める */
.pricing-wide { max-width: 1240px; }
@media (max-width: 1100px) { .price-grid--5 { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px)  { .price-grid--5 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px)  { .price-grid--5 { grid-template-columns: 1fr; } }
.price-card { background: #fff; border: 1px solid var(--c-border); border-radius: var(--r-lg); padding: 32px; box-shadow: var(--shadow-sm); position: relative; }
.price-card--featured { border-color: transparent; box-shadow: 0 0 0 2px var(--c-purple), var(--shadow-md); }
.price-card .badge { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--gradient); color: #fff; font-size: .78rem; font-weight: 700; padding: 5px 14px; border-radius: 999px; }
.price-card .plan { font-weight: 700; color: var(--c-ink-soft); }
.price-card .price { font-size: 2.6rem; font-weight: 800; line-height: 1.1; margin: 10px 0 4px; }
.price-card .price small { font-size: .95rem; font-weight: 600; color: var(--c-ink-faint); }
.price-card .price-note { color: var(--c-ink-faint); font-size: .9rem; margin-bottom: 20px; }
.price-card ul.feats { margin: 20px 0; display: grid; gap: 10px; }
.price-card ul.feats li { display: flex; gap: 10px; color: var(--c-ink-soft); font-size: .94rem; }
.price-card ul.feats li::before { content: "✓"; color: var(--c-purple); font-weight: 800; }
.price-card .btn { width: 100%; }

/* 比較表（6列・狭い画面では横スクロール） */
.compare-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.compare { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: .92rem; min-width: 560px; }
.compare th, .compare td { padding: 12px 10px; border-bottom: 1px solid var(--c-border); text-align: center; white-space: nowrap; }
.compare th:first-child, .compare td:first-child { text-align: left; color: var(--c-ink-soft); white-space: normal; }
.compare thead th { font-weight: 700; }
.compare .yes { color: var(--c-purple); font-weight: 800; }
.compare .no { color: var(--c-ink-faint); }

/* ---------- ダウンロード ---------- */
.dl-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.dl-card { text-align: center; }
.dl-card .icon { margin: 0 auto 14px; }
.dl-soon { margin-top: 28px; text-align: center; color: var(--c-ink-faint); }

/* ---------- 寄付 ---------- */
.donate-methods { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-top: 24px; }
.donate-methods .btn { background: #fff; border: 1px solid var(--c-border); color: var(--c-ink); box-shadow: var(--shadow-sm); }

/* ---------- 法務（プライバシー・利用規約） ---------- */
.legal { max-width: 760px; }
.legal h1 { margin-bottom: 6px; }
.legal .legal-updated { color: var(--c-ink-faint); font-size: .88rem; margin-bottom: 20px; }
.legal .lead { margin-bottom: 28px; }
.legal h2 { font-size: 1.18rem; margin: 32px 0 10px; padding-top: 8px; }
.legal p { color: var(--c-ink-soft); line-height: 1.9; margin-bottom: 12px; }
.legal ul { margin: 4px 0 16px; padding-left: 1.2em; display: grid; gap: 8px; }
.legal ul li { color: var(--c-ink-soft); line-height: 1.8; list-style: disc; }
.legal .legal-note { margin-top: 36px; padding-top: 16px; border-top: 1px solid var(--c-border); color: var(--c-ink-faint); font-size: .88rem; }

/* ---------- FAQ アコーディオン ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--c-border); border-radius: var(--r-md); background: #fff; overflow: hidden; }
.faq-item summary {
  cursor: pointer; list-style: none; padding: 20px 24px; font-weight: 700;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--c-purple); font-size: 1.4rem; font-weight: 400; transition: transform .2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-body { padding: 0 24px 22px; color: var(--c-ink-soft); }

/* ---------- フォーム ---------- */
.form { max-width: 560px; margin: 0 auto; display: grid; gap: 16px; }
.form label { font-weight: 600; font-size: .92rem; display: grid; gap: 6px; }
.form input, .form textarea {
  font: inherit; padding: 12px 14px; border: 1px solid var(--c-border); border-radius: var(--r-sm);
  background: #fff; color: var(--c-ink);
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--c-purple); border-color: transparent; }

/* ---------- CTA帯 ---------- */
.cta {
  background: var(--gradient); color: #fff; border-radius: var(--r-lg);
  padding: 56px 32px; text-align: center; margin: 0 auto;
}
.cta h2 { color: #fff; margin-bottom: 12px; }
.cta p { color: rgba(255,255,255,.9); margin-bottom: 26px; }
.cta .btn--primary { background: #fff; color: var(--c-deep); box-shadow: 0 6px 20px rgba(0,0,0,.18); }

/* バナー: 寄付の軽いお願い */
.support-strip { background: var(--c-bg-soft); border: 1px solid var(--c-border); border-radius: var(--r-md); padding: 24px 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.support-strip p { color: var(--c-ink-soft); }

/* ---------- フッター ---------- */
.site-footer { background: var(--c-bg-soft); border-top: 1px solid var(--c-border); padding: 56px 0 32px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.footer-brand .brand { margin-bottom: 12px; }
.footer-brand p { color: var(--c-ink-faint); font-size: .92rem; max-width: 260px; }
.footer-col h4 { font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; color: var(--c-ink-faint); margin-bottom: 14px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--c-ink-soft); font-size: .94rem; }
.footer-col a:hover { color: var(--c-ink); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--c-border); color: var(--c-ink-faint); font-size: .88rem; }
.footer-bottom .lang a { margin-left: 14px; }

/* ---------- レスポンシブ ---------- */
@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; gap: 40px; }
  .hero__media { order: -1; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .feature-row { grid-template-columns: 1fr; gap: 28px; }
  .feature-row:nth-child(even) .feature-row__media { order: 0; }
  .price-grid { grid-template-columns: 1fr; }
  .dl-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav, .header-actions .btn--ghost { display: none; }
  .nav-toggle { display: block; }
  .nav.open { display: flex; position: absolute; top: 68px; left: 0; right: 0; flex-direction: column; background: #fff; border-bottom: 1px solid var(--c-border); padding: 16px var(--gutter); gap: 16px; }
}
@media (max-width: 560px) {
  .section { padding: 60px 0; }
  .grid--2, .grid--3, .dl-grid { grid-template-columns: 1fr; }
  .trustbar ul { gap: 20px; }
  .flow { flex-direction: column; }
  .flow__arrow { transform: rotate(90deg); }
}