/* ===================================================================
   コエファーム(KoeFarm) 公開サイト共通スタイル
   自己完結（外部CDN・外部フォント・外部JS不使用）
   ライト/ダーク両対応・スマホファースト
   =================================================================== */

:root {
  --color-primary: #2E8B4E;
  --color-primary-dark: #226B3B;
  --color-primary-light: #4CAF6E;
  --color-accent: #E8A33D;

  --color-bg: #FAFAF7;
  --color-bg-alt: #F0F5F1;
  --color-surface: #FFFFFF;
  --color-text: #1B2A20;
  --color-text-muted: #4A5D50;
  --color-border: #DCE5DE;
  --color-link: #226B3B;
  --color-code-bg: #F0F5F1;

  --shadow-sm: 0 1px 3px rgba(20, 40, 25, 0.08);
  --shadow-md: 0 4px 16px rgba(20, 40, 25, 0.10);

  --radius: 12px;
  --max-width: 880px;

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #4CAF6E;
    --color-primary-dark: #6FC98A;
    --color-primary-light: #3E9A5D;
    --color-accent: #F0B65A;

    --color-bg: #10160F;
    --color-bg-alt: #161F17;
    --color-surface: #1A2419;
    --color-text: #EAF1E9;
    --color-text-muted: #A9BBAB;
    --color-border: #2B3A2C;
    --color-link: #7BD196;
    --color-code-bg: #202B21;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
  }
}

/* テーマ手動切替に対応する場合のためのオーバーライドフック */
:root[data-theme="dark"] {
  --color-primary: #4CAF6E;
  --color-primary-dark: #6FC98A;
  --color-primary-light: #3E9A5D;
  --color-accent: #F0B65A;
  --color-bg: #10160F;
  --color-bg-alt: #161F17;
  --color-surface: #1A2419;
  --color-text: #EAF1E9;
  --color-text-muted: #A9BBAB;
  --color-border: #2B3A2C;
  --color-link: #7BD196;
  --color-code-bg: #202B21;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
}

:root[data-theme="light"] {
  --color-primary: #2E8B4E;
  --color-primary-dark: #226B3B;
  --color-primary-light: #4CAF6E;
  --color-accent: #E8A33D;
  --color-bg: #FAFAF7;
  --color-bg-alt: #F0F5F1;
  --color-surface: #FFFFFF;
  --color-text: #1B2A20;
  --color-text-muted: #4A5D50;
  --color-border: #DCE5DE;
  --color-link: #226B3B;
  --color-code-bg: #F0F5F1;
  --shadow-sm: 0 1px 3px rgba(20, 40, 25, 0.08);
  --shadow-md: 0 4px 16px rgba(20, 40, 25, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Yu Gothic", "Noto Sans JP", Meiryo, sans-serif;
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

a:hover,
a:focus-visible {
  color: var(--color-primary-dark);
}

/* ------------------------------------------------------------------
   サイトヘッダー
   ------------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: saturate(150%) blur(6px);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-text);
  text-decoration: none;
}

.brand:hover {
  color: var(--color-primary);
}

.brand__mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.site-nav a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--color-primary);
}

/* ------------------------------------------------------------------
   レイアウト共通
   ------------------------------------------------------------------ */
main {
  display: block;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.doc {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.doc__meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.doc__updated {
  display: inline-block;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

section {
  margin-bottom: 2.2em;
}

h1 {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  line-height: 1.4;
  margin: 0 0 0.5em;
  font-weight: 800;
}

h2 {
  font-size: 1.3rem;
  line-height: 1.5;
  margin: 1.8em 0 0.7em;
  padding-top: 0.6em;
  border-top: 1px solid var(--color-border);
  font-weight: 700;
}

section:first-of-type h2:first-child,
h1 + p + h2 {
  border-top: none;
  padding-top: 0;
}

h3 {
  font-size: 1.08rem;
  margin: 1.4em 0 0.5em;
  font-weight: 700;
}

p {
  margin: 0 0 1em;
}

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}

li {
  margin-bottom: 0.4em;
}

strong {
  color: var(--color-text);
  font-weight: 700;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2em 0;
}

code {
  background: var(--color-code-bg);
  border-radius: 4px;
  padding: 0.15em 0.4em;
  font-size: 0.9em;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

/* ------------------------------------------------------------------
   テーブル（横スクロール対応）
   ------------------------------------------------------------------ */
.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 0 0 1.4em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

table {
  border-collapse: collapse;
  width: 100%;
  min-width: 560px;
  font-size: 0.92rem;
}

caption {
  caption-side: bottom;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  padding: 8px 12px;
  text-align: left;
}

th, td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

thead th {
  background: var(--color-bg-alt);
  font-weight: 700;
  white-space: nowrap;
}

tbody tr:last-child th,
tbody tr:last-child td {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--color-bg-alt);
}

/* ------------------------------------------------------------------
   ヒーロー（トップページ）
   ------------------------------------------------------------------ */
.hero {
  background:
    radial-gradient(circle at 15% 0%, color-mix(in srgb, var(--color-primary) 14%, transparent), transparent 55%),
    var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 20px 56px;
  text-align: center;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 0.85rem;
  color: var(--color-primary-dark);
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.hero h1 {
  font-size: clamp(1.7rem, 5.4vw, 2.6rem);
  font-weight: 800;
  margin: 0 0 0.6em;
  color: var(--color-text);
}

.hero h1 em {
  font-style: normal;
  color: var(--color-primary-dark);
}

.hero__lead {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 46em;
  margin: 0 auto 2em;
}

.hero__ctas {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.hero__note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ------------------------------------------------------------------
   ボタン / App Store バッジ
   ------------------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: #fff;
}

.appstore-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #000;
  color: #fff;
  border-radius: 12px;
  padding: 10px 20px;
  text-decoration: none;
  border: 1px solid #000;
  box-shadow: var(--shadow-md);
}

.appstore-badge:hover {
  background: #1a1a1a;
  color: #fff;
  opacity: 0.92;
}

/* App Store公開前の暫定表示（リンクではない span）。
   押せるように見えると誤解を招くので、明示的にトーンを落として hover を殺す。
   App ID が確定してリンクへ戻したら、この2ルールは不要になる。 */
.appstore-badge--pending,
.btn--pending {
  cursor: default;
  opacity: 0.72;
  box-shadow: none;
}

.appstore-badge--pending:hover,
.btn--pending:hover {
  transform: none;
  opacity: 0.72;
}

.appstore-badge__icon {
  font-size: 1.6rem;
  line-height: 1;
}

.appstore-badge__text {
  text-align: left;
  line-height: 1.25;
}

.appstore-badge__small {
  display: block;
  font-size: 0.7rem;
  opacity: 0.85;
}

.appstore-badge__big {
  display: block;
  font-size: 1.05rem;
  font-weight: 700;
  font-family: -apple-system, sans-serif;
}

@media (prefers-color-scheme: dark) {
  .appstore-badge {
    background: #fff;
    color: #000;
    border-color: #fff;
  }
  .appstore-badge:hover {
    background: #eaeaea;
    color: #000;
  }
}

:root[data-theme="dark"] .appstore-badge {
  background: #fff;
  color: #000;
  border-color: #fff;
}

/* ------------------------------------------------------------------
   価値3本柱
   ------------------------------------------------------------------ */
.pillars {
  padding: 60px 0;
}

.pillars__head {
  text-align: center;
  max-width: 40em;
  margin: 0 auto 40px;
}

.pillars__head h2 {
  border: none;
  padding: 0;
  margin: 0 0 0.5em;
  font-size: clamp(1.4rem, 3.6vw, 1.9rem);
}

.pillars__head p {
  color: var(--color-text-muted);
  margin: 0;
}

.pillar-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 720px) {
  .pillar-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px 22px;
  box-shadow: var(--shadow-sm);
}

.pillar-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary-dark);
  font-weight: 800;
  margin-bottom: 14px;
}

.pillar-card h3 {
  margin: 0 0 0.5em;
  font-size: 1.1rem;
}

.pillar-card p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 0.96rem;
}

/* ------------------------------------------------------------------
   セクション（ストーリー・無料訴求など）
   ------------------------------------------------------------------ */
.section {
  padding: 56px 0;
}

.section--alt {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section h2 {
  border: none;
  padding: 0;
  font-size: clamp(1.35rem, 3.4vw, 1.8rem);
  margin: 0 0 0.8em;
}

.story {
  display: grid;
  gap: 24px;
}

.story__badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 4px 14px;
  margin-bottom: 14px;
}

.story p {
  color: var(--color-text-muted);
}

.story p strong {
  color: var(--color-text);
}

.free-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.free-box h2 {
  margin-top: 0;
}

.free-box ul {
  list-style: none;
  padding: 0;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  justify-content: center;
  margin: 18px 0 24px;
  text-align: left;
}

.free-box li {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.free-box li::before {
  content: "✓ ";
  color: var(--color-primary);
  font-weight: 800;
}

/* ------------------------------------------------------------------
   最終CTA
   ------------------------------------------------------------------ */
.final-cta {
  text-align: center;
  padding: 60px 0 70px;
}

.final-cta h2 {
  border: none;
  padding: 0;
  font-size: clamp(1.4rem, 3.6vw, 1.9rem);
}

.final-cta p {
  color: var(--color-text-muted);
  max-width: 34em;
  margin: 0 auto 28px;
}

/* ------------------------------------------------------------------
   FAQ (サポートページ)
   ------------------------------------------------------------------ */
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}

.faq-item h3 {
  margin: 0 0 0.5em;
  font-size: 1rem;
  color: var(--color-primary-dark);
}

.faq-item p {
  margin: 0;
  color: var(--color-text-muted);
}

.contact-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 26px;
  margin: 1.5em 0;
}

.contact-card a {
  font-weight: 700;
}

/* ------------------------------------------------------------------
   サイトフッター
   ------------------------------------------------------------------ */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  margin-top: 40px;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 40px;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
}

.footer-links a {
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.footer-meta {
  margin: 0;
  line-height: 1.7;
}

.footer-meta a {
  color: var(--color-text-muted);
}

@media (max-width: 480px) {
  .hero__inner {
    padding: 48px 16px 44px;
  }
  .doc {
    padding: 28px 16px 60px;
  }
}