/* =========================================================
   スマホ管理Pro 紹介サイト スタイルシート
   design-spec.md のトークン・コンポーネント定義に準拠
   ========================================================= */

/* ---------- 0. トークン ---------- */
:root {
  color-scheme: light;

  /* 紙・インク */
  --paper: #FAFAF7;
  --surface: #FFFFFF;
  --ink: #1B2430;

  /* 罫線・枠線 */
  --rule: #D9D4C7;
  --border: #E4E1D8;

  /* くぼみ・補助 */
  --well: #F1EEE3;
  --muted: #5B6472;
  --muted-loose: #718096;
  --muted-weak: #A0AEC0;

  /* アクセント */
  --accent: #6366F1;
  --accent-strong: #4338CA;
  --accent-wash: #EEF0FD;

  /* 意味色 */
  --success: #276749;
  --success-wash: #EAF6EF;
  --warning: #DD6B20;
  --warning-wash: #FDF3E7;
  --danger: #E53E3E;
  --danger-wash: #FDECEC;

  /* カテゴリ識別色 */
  --cat-contract: #6366F1;
  --cat-device: #8B5CF6;
  --cat-internet: #0891B2;
  --cat-mnp: #F59E0B;
  --cat-subscription: #EC4899;

  /* ヒーロー原価カード */
  --ledger-bg: #000000;
  --ledger-label: #C7D2FE;
  --ledger-fill: rgba(255, 255, 255, 0.12);
  --ledger-divider: rgba(255, 255, 255, 0.25);
  --ledger-shadow: 0 20px 40px rgba(0, 0, 0, 0.32);

  /* 共通影(弱) */
  --shadow-soft: 0 24px 48px rgba(27, 36, 48, 0.16);

  /* タイポグラフィ */
  font-family: system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", sans-serif;
  font-size: 16px;

  --lh-body: 1.75;
  --lh-lead: 1.7;
  --lh-tight: 1.3;
  --lh-legal: 1.9;

  --text-micro: 0.75rem;
  --text-small: 0.875rem;
  --text-body: 1rem;
  --text-lead: clamp(1.05rem, 0.97rem + 0.4vw, 1.25rem);
  --text-h3: clamp(1.15rem, 1.05rem + 0.5vw, 1.375rem);
  --text-h2: clamp(1.5rem, 1.2rem + 1.3vw, 2.125rem);
  --text-h1: clamp(1.875rem, 1.35rem + 2.2vw, 2.875rem);
  --text-display: clamp(2.5rem, 1.7rem + 3.2vw, 4.5rem);

  /* コンテナ余白 */
  --container-pad: 20px;
}

@media (min-width: 640px) {
  :root { --container-pad: 32px; }
}
@media (min-width: 1024px) {
  :root { --container-pad: max(5vw, calc((100vw - 1120px) / 2)); }
}

/* ---------- 1. リセット / ベース ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  line-height: var(--lh-body);
  font-size: var(--text-body);
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; height: auto; }
a { color: inherit; }
a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
h1, h2, h3, h4 {
  margin: 0;
  line-height: var(--lh-tight);
  font-weight: 700;
  text-wrap: balance;
  font-feature-settings: "palt" 1;
}
p { margin: 0; }
p, .lead {
  text-wrap: pretty;
}
ul, ol { margin: 0; }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.tabular { font-variant-numeric: tabular-nums; }

/* ---------- 2. レイアウトユーティリティ ---------- */
.container {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: var(--container-pad);
}
.section {
  padding-block: clamp(48px, 8vw, 96px);
}
.section--tight { padding-block: clamp(40px, 6vw, 72px); }
.section__head {
  max-width: 65ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}
.section__eyebrow {
  display: block;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--accent-strong);
  margin-bottom: 0.5rem;
}
.section__title {
  font-size: var(--text-h2);
  margin-bottom: 0.75rem;
}
.section__lead {
  font-size: var(--text-lead);
  line-height: var(--lh-lead);
  color: var(--ink);
  max-width: 65ch;
}
.prose { max-width: 65ch; }
.prose p + p { margin-top: 1em; }

/* ---------- 3. ヘッダー ---------- */
.site-header {
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 56px;
  padding-block: 8px;
}
@media (min-width: 640px) {
  .site-header__inner { min-height: 64px; }
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 44px;
  font-weight: 700;
  font-size: var(--text-h3);
  text-decoration: none;
}
.brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: block;
}
.brand span { font-feature-settings: "palt" 1; }
.site-header__cta { flex: none; }

/* ---------- 4. ボタン / Google Playバッジ ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.875rem 1.75rem;
  border-radius: 12px;
  background: var(--accent-strong);
  color: #fff;
  font-weight: 700;
  font-size: var(--text-body);
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(27, 36, 48, 0.08);
  transition: transform 150ms ease-out, box-shadow 150ms ease-out;
}
.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.25);
}
.btn-primary:focus-visible {
  outline: 2px solid #fff;
  outline-offset: -4px;
}
@media (prefers-reduced-motion: reduce) {
  .btn-primary { transition: none; }
  .btn-primary:hover, .btn-primary:focus-visible { transform: none; }
}

.play-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 4px;
  text-decoration: none;
  border-radius: 10px;
}
.play-badge img {
  display: block;
  height: var(--badge-h, 40px);
  width: auto;
}
.play-badge__fallback[hidden] { display: none; }
.play-badge__fallback {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 44px;
  padding: 0.6rem 1.25rem;
  background: #000;
  color: #fff;
  border-radius: 10px;
  font-weight: 700;
  font-size: var(--text-small);
  line-height: 1.3;
}
.play-badge__fallback svg { flex: none; }
.play-badge--sm { --badge-h: 36px; }
.play-badge--md { --badge-h: 44px; }
.play-badge--lg { --badge-h: 52px; }
.play-badge--sm .play-badge__fallback,
.play-badge--md .play-badge__fallback { padding: 0.5rem 1rem; }

/* ---------- 5. ヒーロー ---------- */
.hero {
  padding-block: clamp(40px, 7vw, 88px);
}
.hero__grid {
  display: grid;
  gap: clamp(32px, 6vw, 56px);
}
.hero__copy { max-width: 46ch; }
.hero__title {
  font-size: var(--text-h1);
  margin-bottom: 1.25rem;
}
.hero__lead {
  font-size: var(--text-lead);
  line-height: var(--lh-lead);
  color: var(--ink);
  margin-bottom: 1.75rem;
}
.hero__cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}
.hero__cta-note {
  font-size: var(--text-small);
  color: var(--muted);
}
.hero__visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero__ledger {
  margin-top: 20px;
  width: 100%;
  display: flex;
  justify-content: center;
}
@media (min-width: 768px) {
  .hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }
  .hero__visual { align-items: flex-end; }
  .hero__ledger {
    justify-content: flex-end;
    margin-top: -56px;
    margin-right: 8%;
  }
}

/* ---------- 6. 電話フレーム / スクリーンショット ---------- */
.phone-frame {
  background: #15171C;
  border-radius: 36px;
  padding: 10px;
  box-shadow: var(--shadow-soft);
  width: 100%;
  max-width: 260px;
}
@media (min-width: 768px) {
  .phone-frame { max-width: 320px; }
}
@media (min-width: 1024px) {
  .phone-frame { max-width: 340px; }
}
.phone-frame__notch {
  width: 56px; height: 5px;
  background: rgba(255, 255, 255, 0.35);
  border-radius: 3px;
  margin: 0 auto 8px;
}
.shot {
  position: relative;
  aspect-ratio: 9 / 19.5;
  border-radius: 26px;
  overflow: hidden;
  background: var(--well);
  display: flex;
  align-items: center;
  justify-content: center;
}
.shot img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.shot__fallback {
  padding: 16px;
  text-align: center;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- 7. ヒーロー黒カード（唯一の派手要素） ---------- */
.ledger-card {
  background: var(--ledger-bg);
  color: #fff;
  border-radius: 24px;
  padding: clamp(20px, 4vw, 32px);
  box-shadow: var(--ledger-shadow);
  max-width: 360px;
  width: 100%;
}
.ledger-card__label {
  font-size: var(--text-micro);
  color: var(--ledger-label);
  letter-spacing: 0.02em;
  margin-bottom: 0.5rem;
  font-weight: 500;
}
.ledger-card__amount {
  display: flex;
  align-items: flex-end;
  gap: 0.25rem;
  font-variant-numeric: tabular-nums;
}
.ledger-card__currency { font-size: 1.25rem; font-weight: 800; }
.ledger-card__number { font-size: var(--text-display); font-weight: 900; line-height: 1; }
.ledger-card__unit { font-size: 0.9rem; color: var(--ledger-label); padding-bottom: 0.35rem; }
.ledger-card__breakdown {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  background: var(--ledger-fill);
  border-radius: 14px;
  padding: 12px;
  margin-top: 1rem;
}
.ledger-card__item { text-align: center; }
.ledger-card__item + .ledger-card__item { border-left: 1px solid var(--ledger-divider); }
.ledger-card__item-label { font-size: var(--text-micro); color: var(--ledger-label); }
.ledger-card__item-amount { font-size: var(--text-small); font-weight: 800; font-variant-numeric: tabular-nums; }
.ledger-card__caption {
  margin-top: 0.75rem;
  font-size: var(--text-micro);
  color: var(--ledger-label);
  opacity: 0.85;
}

/* ---------- 8. 罫線リスト ---------- */
.ledger-list { border-top: 1px solid var(--border); }
.ledger-list__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--rule);
}
.ledger-list__row:last-child { border-bottom: none; }

/* ---------- 9. 共感セクション ---------- */
.empathy__lead {
  font-size: var(--text-lead);
  color: var(--ink);
  margin-bottom: 1.75rem;
  max-width: 60ch;
}
.empathy__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.empathy__item {
  font-size: var(--text-h3);
  font-weight: 500;
  line-height: var(--lh-lead);
  padding-left: 1rem;
  border-left: 1px solid var(--rule);
}
.empathy__item:first-child { border-left: none; padding-left: 0; }
@media (min-width: 640px) {
  .empathy__list { grid-template-columns: 1fr 1fr; }
  .empathy__item:nth-child(3) { border-left: none; padding-left: 0; }
}
@media (min-width: 1024px) {
  .empathy__list { grid-template-columns: repeat(4, 1fr); }
  .empathy__item:nth-child(2),
  .empathy__item:nth-child(3) { border-left: 1px solid var(--rule); padding-left: 1rem; }
}

/* ---------- 10. 機能6枚（帳簿グリッド） ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.feature-grid__cell {
  background: var(--paper);
  padding: 24px;
}
@media (min-width: 640px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 1024px) {
  .feature-grid { grid-template-columns: repeat(3, 1fr); }
  .feature-grid__cell { padding: 32px; }
}
.icon-well {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--well);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}
.icon-well svg {
  width: 22px;
  height: 22px;
  stroke: var(--ink);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.feature-grid__head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.feature-grid__title {
  font-size: var(--text-h3);
  font-weight: 700;
}
.feature-grid__desc {
  font-size: var(--text-small);
  color: var(--ink);
  line-height: var(--lh-body);
}
.chip-premium {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: var(--text-micro);
  font-weight: 700;
  color: var(--accent-strong);
  background: var(--accent-wash);
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
}
.chip-premium svg {
  width: 12px;
  height: 12px;
  stroke: var(--accent-strong);
  fill: none;
  stroke-width: 2;
}

/* ---------- 11. 画面紹介（横スクロール） ---------- */
.screens-wrap { position: relative; }
.screens {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 8px var(--container-pad) 24px;
  scrollbar-width: none;
  list-style: none;
  margin: 0;
}
.screens::-webkit-scrollbar { display: none; }
.screens__item {
  flex: 0 0 78vw;
  max-width: 280px;
  scroll-snap-align: center;
}
@media (min-width: 640px) {
  .screens__item { flex-basis: 320px; }
}
@media (min-width: 1024px) {
  .screens__item { flex-basis: 340px; }
}
.screens__caption {
  margin-top: 10px;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--ink);
}
.screens__caption strong { font-weight: 700; }

/* ---------- 12. 年間レポート ---------- */
.annual {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
}
@media (min-width: 1024px) {
  .annual { grid-template-columns: 1fr 1fr; align-items: center; }
}
.annual__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: var(--text-micro);
  font-weight: 700;
  color: var(--accent-strong);
  background: var(--accent-wash);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.annual__badge svg { width: 12px; height: 12px; stroke: var(--accent-strong); fill: none; stroke-width: 2; }
.annual__title { font-size: var(--text-h2); margin-bottom: 0.9rem; }
.annual__text { font-size: var(--text-body); line-height: var(--lh-body); max-width: 60ch; }

.annual-preview {
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 24px;
}
.annual-preview__total {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  background: var(--ledger-bg);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: 10px;
  font-weight: 800;
  margin-bottom: 1.25rem;
}
.annual-preview__total small { font-size: var(--text-micro); color: var(--ledger-label); font-weight: 500; }
.annual-preview__bars { display: flex; flex-direction: column; gap: 0.75rem; }
.annual-preview__bar-row {
  display: grid;
  grid-template-columns: 6.5em 1fr;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-small);
}
.annual-preview__bar-track {
  height: 8px;
  border-radius: 4px;
  background: var(--well);
  overflow: hidden;
}
.annual-preview__bar-fill { height: 100%; border-radius: 4px; }

/* ---------- 13. 料金比較表 ---------- */
.pricing { max-width: 720px; margin-inline: auto; }
.pricing__intro {
  text-align: center;
  color: var(--muted);
  font-size: var(--text-small);
  margin-bottom: 2rem;
  max-width: 60ch;
  margin-inline: auto;
}
.pricing__table {
  width: 100%;
  border-collapse: collapse;
  display: none;
}
.pricing__table th,
.pricing__table td {
  text-align: left;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--rule);
  font-size: var(--text-small);
  vertical-align: top;
}
.pricing__table thead th {
  font-size: var(--text-h3);
  font-weight: 700;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1rem;
}
.pricing__table td:first-child,
.pricing__table th:first-child {
  color: var(--ink);
  font-weight: 500;
  width: 42%;
}
.pricing__col--premium { background: var(--accent-wash); }
.pricing__pill {
  display: inline-block;
  background: var(--accent-strong);
  color: #fff;
  font-size: var(--text-micro);
  font-weight: 700;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  margin-bottom: 0.4rem;
}
.pricing__check { stroke: var(--accent); fill: none; stroke-width: 2; width: 16px; height: 16px; vertical-align: -3px; }
.pricing__dash { color: var(--muted); }
.pricing__note {
  margin-top: 1.5rem;
  font-size: var(--text-micro);
  color: var(--muted);
  line-height: var(--lh-body);
}

.pricing__blocks { display: grid; gap: 20px; }
.pricing__block {
  border: 1px solid var(--border);
  padding: 20px;
  background: var(--surface);
}
.pricing__block--premium { background: var(--accent-wash); border-color: var(--accent); }
.pricing__block-title {
  font-size: var(--text-h3);
  font-weight: 700;
  margin-bottom: 0.9rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.pricing__block .ledger-list { border-top: 1px solid var(--rule); }
.pricing__block .ledger-list__row {
  border-bottom: 1px solid var(--rule);
  align-items: flex-start;
}
.pricing__block .ledger-list__row:last-child { border-bottom: none; }
.pricing__block-cta { margin-top: 1.25rem; display: flex; }

@media (min-width: 640px) {
  .pricing__table { display: table; }
  .pricing__blocks { display: none; }
}

/* ---------- 14. FAQ ---------- */
.faq { border-top: 1px solid var(--border); max-width: 720px; margin-inline: auto; }
.faq__item { border-bottom: 1px solid var(--rule); }
.faq__item summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
  padding: 1.125rem 0.25rem;
  cursor: pointer;
  font-size: var(--text-h3);
  font-weight: 500;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "";
  flex: none;
  width: 12px; height: 12px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(45deg);
  transition: transform 150ms ease-out;
}
.faq__item[open] summary::after { transform: rotate(-135deg); }
.faq__answer {
  padding: 0 0.25rem 1.25rem;
  color: var(--ink);
  font-size: var(--text-body);
  line-height: var(--lh-body);
  max-width: 65ch;
}
@media (prefers-reduced-motion: reduce) {
  .faq__item summary::after { transition: none; }
}

/* ---------- 15. 最終CTA ---------- */
.final-cta {
  text-align: center;
  padding-block: clamp(64px, 10vw, 96px);
}
.final-cta__title { font-size: var(--text-h2); margin-bottom: 1rem; }
.final-cta__text {
  font-size: var(--text-lead);
  color: var(--ink);
  max-width: 50ch;
  margin-inline: auto;
  margin-bottom: 2rem;
}
.final-cta__badge { display: flex; justify-content: center; }
.final-cta__note {
  margin-top: 1rem;
  font-size: var(--text-small);
  color: var(--muted);
}

/* ---------- 16. フッター ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 40px;
  background: var(--paper);
}
.site-footer__grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
@media (min-width: 640px) {
  .site-footer__grid {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
}
.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 44px;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.site-footer__brand img { width: 24px; height: 24px; border-radius: 6px; }
.site-footer__copyright {
  font-size: var(--text-small);
  color: var(--muted);
}
.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.site-footer__links a {
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--ink);
  font-size: var(--text-small);
}

/* ---------- 17. Legal ページ ---------- */
.legal {
  max-width: 720px;
  margin-inline: auto;
  padding: 48px 20px 96px;
  line-height: var(--lh-legal);
}
.legal h1 { font-size: var(--text-h1); margin-bottom: 0.5rem; }
.legal .legal__updated {
  color: var(--muted);
  font-size: var(--text-small);
  margin-bottom: 2.5rem;
  display: block;
}
.legal h2 {
  font-size: var(--text-h2);
  margin-top: 2.5em;
  margin-bottom: 0.75em;
  padding-top: 0.75em;
  border-top: 1px solid var(--border);
}
.legal h2:first-of-type { margin-top: 1.5em; }
.legal h3 { font-size: var(--text-h3); margin-top: 1.5em; margin-bottom: 0.5em; }
.legal p { margin-bottom: 1em; }
.legal ul, .legal ol { padding-left: 1.5em; margin-bottom: 1em; }
.legal li { margin-bottom: 0.5em; }
.legal li::marker { color: var(--muted); }
.legal a { color: var(--accent-strong); text-decoration: underline; text-underline-offset: 2px; }
.legal__back { display: inline-block; margin-top: 2rem; font-size: var(--text-small); }

/* ---------- 18. 404 ---------- */
.notfound {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 64px 20px;
  gap: 1rem;
}
.notfound__code {
  font-size: var(--text-display);
  font-weight: 900;
  color: var(--muted-weak);
  font-variant-numeric: tabular-nums;
}

/* ---------- 19. 印刷 ---------- */
@media print {
  .site-header, .site-footer, .play-badge { display: none; }
}