/* ============================================================
   たびるん 公式サイト 共通スタイル
   ============================================================ */

/* ── リセット & ベース ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --mint:        #23BFAF;
  --mint-light:  #DDF6F1;
  --mint-dark:   #0F9D8E;
  --beige:       #FFF8EF;
  --beige-dark:  #FFF0DC;
  --text:        #1F2937;
  --text-sub:    #6B7280;
  --text-light:  #9CA3AF;
  --accent:      #F6A66A;
  --white:       #FFFFFF;
  --border:      #E5E7EB;
  --shadow:      0 4px 24px rgba(0,0,0,0.08);
  --radius:      16px;
  --radius-sm:   8px;
  --max-w:       1100px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Zen Maru Gothic', -apple-system, BlinkMacSystemFont,
               'Hiragino Sans', 'Noto Sans JP', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* スクロールで浮かび上がる演出 */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--mint); text-decoration: none; }
a:hover { color: var(--mint-dark); }

/* ── ユーティリティ ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section--beige { background: var(--beige); }
.section--mint-light { background: var(--mint-light); }

.section-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--mint);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 16px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-sub);
  max-width: 560px;
}
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ── ボタン ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: transform .15s, box-shadow .15s, background .15s;
  text-decoration: none;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0,0,0,0.15); }
.btn--primary { background: var(--mint); color: var(--white); }
.btn--primary:hover { background: var(--mint-dark); color: var(--white); }
.btn--outline { background: transparent; color: var(--mint); border: 2px solid var(--mint); }
.btn--outline:hover { background: var(--mint); color: var(--white); }

/* ストアボタン */
.store-buttons { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--text);
  color: var(--white);
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: background .15s, transform .15s;
  border: none;
  cursor: default;
}
.store-btn:hover { background: #374151; color: var(--white); transform: translateY(-1px); }
.store-btn--soon { background: var(--text-light); cursor: default; }
.store-btn--soon:hover { transform: none; box-shadow: none; background: var(--text-light); }
.store-btn--sm { padding: 10px 16px; font-size: 13px; }

/* ── ヘッダー ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  height: 64px;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
}
.header-logo-icon {
  width: 36px;
  height: 36px;
  background: var(--mint);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
}
.header-nav { display: flex; align-items: center; gap: 28px; }
.header-nav a {
  font-size: 14px;
  color: var(--text-sub);
  font-weight: 500;
  white-space: nowrap;
}
.header-nav a:hover { color: var(--mint); }
.header-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.header-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .2s;
}

/* モバイルメニュー */
.mobile-menu {
  display: none;
  position: fixed;
  inset: 64px 0 0 0;
  background: white;
  z-index: 99;
  padding: 24px 20px;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid var(--border);
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  display: block;
  padding: 14px 12px;
  font-size: 16px;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

/* ── フッター ── */
.site-footer {
  background: var(--text);
  color: rgba(255,255,255,.7);
  padding: 56px 0 32px;
}
.footer-top {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  color: white;
  margin-bottom: 10px;
}
.footer-logo-icon {
  width: 32px;
  height: 32px;
  background: var(--mint);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: white;
}
.footer-tagline { font-size: 13px; margin-bottom: 20px; }
.footer-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 32px; }
.footer-nav a { font-size: 13px; color: rgba(255,255,255,.6); }
.footer-nav a:hover { color: var(--mint); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: 12px;
  flex-wrap: wrap;
  gap: 8px;
}
.footer-sns { display: flex; gap: 16px; }
.footer-sns a { color: rgba(255,255,255,.5); font-size: 13px; }
.footer-sns a:hover { color: white; }

/* ── ヒーロー ── */
.hero {
  background:
    radial-gradient(ellipse 60% 50% at 85% 10%, rgba(35,191,175,.10), transparent),
    radial-gradient(ellipse 50% 40% at 5% 85%, rgba(246,166,106,.12), transparent),
    var(--beige);
  padding: 72px 0 0;
  overflow: hidden;
  position: relative;
}

/* ヒーローの散りばめ装飾（PDFテーマの世界観） */
.hero-deco {
  position: absolute;
  font-size: 22px;
  color: var(--mint);
  opacity: .25;
  pointer-events: none;
  animation: floaty 6s ease-in-out infinite;
}
.hero-deco--2 { animation-delay: -2s; color: var(--accent); }
.hero-deco--3 { animation-delay: -4s; }
@keyframes floaty {
  0%, 100% { transform: translateY(0) rotate(-6deg); }
  50%      { transform: translateY(-12px) rotate(6deg); }
}
@media (max-width: 768px) { .hero-deco { display: none; } }
.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero-text { padding-bottom: 72px; }
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--mint-light);
  color: var(--mint-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 50px;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 20px;
  color: var(--text);
}
.hero-title span { color: var(--mint); }
.hero-desc {
  font-size: 16px;
  color: var(--text-sub);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-mockup {
  display: flex;
  justify-content: center;
  align-items: flex-end;
}

/* スマホモックアップ */
.phone-frame {
  width: 260px;
  background: #1a1a1a;
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.25);
  position: relative;
}
.phone-notch {
  width: 80px;
  height: 24px;
  background: #1a1a1a;
  border-radius: 0 0 16px 16px;
  margin: 0 auto 4px;
}
.phone-screen {
  background: white;
  border-radius: 28px;
  overflow: hidden;
  height: 460px;
  display: flex;
  flex-direction: column;
}
.phone-screen > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
}
.app-header-bar {
  background: white;
  padding: 12px 14px 8px;
  border-bottom: 1px solid #f0f0f0;
}
.app-trip-title {
  font-size: 13px;
  font-weight: 700;
  color: #1F2937;
}
.app-trip-date {
  font-size: 10px;
  color: #9CA3AF;
  margin-top: 1px;
}
.app-tabs {
  display: flex;
  background: white;
  border-bottom: 1px solid #f0f0f0;
  overflow-x: auto;
  scrollbar-width: none;
}
.app-tabs::-webkit-scrollbar { display: none; }
.app-tab {
  flex-shrink: 0;
  padding: 8px 10px;
  font-size: 9px;
  font-weight: 600;
  color: #9CA3AF;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.app-tab.active {
  color: #23BFAF;
  border-bottom-color: #23BFAF;
}
.app-content {
  flex: 1;
  overflow: hidden;
  padding: 12px;
  background: #FAFAFA;
}
.app-day-header {
  background: #23BFAF;
  color: white;
  font-size: 9px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 6px;
  margin-bottom: 6px;
}
.app-item {
  background: white;
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 5px;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.app-item-time {
  font-size: 8px;
  color: #9CA3AF;
  margin-top: 1px;
  min-width: 24px;
}
.app-item-info { flex: 1; }
.app-item-title { font-size: 9px; font-weight: 600; color: #1F2937; }
.app-item-place { font-size: 8px; color: #9CA3AF; margin-top: 1px; }
.app-item-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #23BFAF;
  margin-top: 3px;
  flex-shrink: 0;
}
.app-bottom-tab {
  background: white;
  border-top: 1px solid #f0f0f0;
  display: flex;
  padding: 6px 0 8px;
}
.app-bottom-tab-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 8px;
  color: #9CA3AF;
}
.app-bottom-tab-item.active { color: #23BFAF; }
.app-bottom-tab-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

/* ── 機能カード ── */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.feature-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: box-shadow .2s, transform .2s;
}
.feature-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}
.feature-icon {
  width: 52px;
  height: 52px;
  background: var(--mint-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 24px;
}
.feature-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.feature-desc { font-size: 14px; color: var(--text-sub); line-height: 1.65; }

/* ── アプリ画面 ── */
.screens-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 48px;
}
.screen-card {
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.screen-title-bar {
  background: var(--mint);
  color: white;
  font-size: 11px;
  font-weight: 700;
  padding: 8px 12px;
  text-align: center;
}
.screen-body {
  padding: 12px;
  background: #FAFAFA;
  min-height: 160px;
}
.screen-row {
  background: white;
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 6px;
  font-size: 10px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.screen-row-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--mint);
  flex-shrink: 0;
}
.screen-check {
  width: 12px;
  height: 12px;
  border: 1.5px solid #ddd;
  border-radius: 3px;
  flex-shrink: 0;
}
.screen-check.checked {
  background: var(--mint);
  border-color: var(--mint);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── アプリ実スクリーンショット ── */
.shots-scroller {
  display: flex;
  gap: 28px;
  margin-top: 48px;
  padding: 8px 4px 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.shots-scroller::-webkit-scrollbar { height: 8px; }
.shots-scroller::-webkit-scrollbar-thumb {
  background: rgba(0,0,0,.15);
  border-radius: 4px;
}
.shot {
  flex: 0 0 auto;
  width: 236px;
  margin: 0;
  scroll-snap-align: center;
  text-align: center;
}
.shot img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 26px;
  box-shadow: 0 12px 30px rgba(0,0,0,.14);
  border: 1px solid rgba(0,0,0,.06);
  background: #fff;
}
.shot figcaption {
  margin-top: 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-sub);
}
@media (max-width: 640px) {
  .shot { width: 208px; }
  .shots-scroller { gap: 20px; }
}

/* ── PDFセクション ── */
.pdf-section-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.pdf-preview {
  background: white;
  border-radius: var(--radius);
  box-shadow: 0 16px 48px rgba(0,0,0,.12);
  overflow: hidden;
  aspect-ratio: 210/297;
  max-width: 280px;
  margin: 0 auto;
}
.pdf-preview-cover {
  background: linear-gradient(160deg, #DDF6F1 0%, #FFF8EF 100%);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}
.pdf-preview-badge {
  font-size: 10px;
  font-weight: 700;
  color: var(--mint);
  letter-spacing: .1em;
  margin-bottom: 8px;
}
.pdf-preview-title {
  font-size: 22px;
  font-weight: 900;
  color: var(--text);
  margin-bottom: 6px;
}
.pdf-preview-date { font-size: 10px; color: var(--text-sub); margin-bottom: 16px; }
.pdf-preview-divider {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--mint);
  font-size: 11px;
  margin-bottom: 16px;
}
.pdf-preview-beach {
  width: 80%;
  height: 60px;
  position: relative;
}
.pdf-feature-list {
  list-style: none;
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.pdf-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text-sub);
}
.pdf-feature-list li::before {
  content: '';
  width: 20px;
  height: 20px;
  background: var(--mint-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2323BFAF'%3E%3Cpath d='M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z'/%3E%3C/svg%3E");
  background-size: 14px;
  background-repeat: no-repeat;
  background-position: center;
  margin-top: 2px;
}

/* ── しおりテーマ ショーケース ── */
.theme-covers {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 56px;
  padding: 20px 0 36px;
}
.theme-cover {
  width: 168px;
  aspect-ratio: 210 / 297;
  border-radius: 10px;
  box-shadow: 0 14px 40px rgba(31,41,55,.18);
  overflow: hidden;
  flex-shrink: 0;
  transition: transform .35s cubic-bezier(.2,.8,.3,1.2), box-shadow .3s;
  position: relative;
}
.theme-cover:nth-child(1) { transform: rotate(-7deg) translateY(10px); z-index: 1; }
.theme-cover:nth-child(2) { transform: rotate(-2deg); z-index: 2; margin-left: -28px; }
.theme-cover:nth-child(3) { transform: rotate(3deg);  z-index: 3; margin-left: -28px; }
.theme-cover:nth-child(4) { transform: rotate(8deg) translateY(12px); z-index: 4; margin-left: -28px; }
.theme-cover:hover {
  transform: rotate(0deg) translateY(-14px) scale(1.06);
  z-index: 10;
  box-shadow: 0 24px 56px rgba(31,41,55,.28);
}
.theme-cover svg { width: 100%; height: 100%; display: block; }
.theme-names {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}
.theme-name-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 16px;
  border-radius: 50px;
  background: var(--white);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-sub);
}
.theme-name-chip .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

/* ── 表紙エディタ紹介 ── */
.editor-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.editor-card {
  background: var(--white);
  border: 1.5px dashed rgba(35,191,175,.45);
  border-radius: 20px;
  padding: 26px 22px;
  text-align: center;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
.editor-card:hover {
  transform: translateY(-4px);
  border-color: var(--mint);
  box-shadow: 0 10px 30px rgba(35,191,175,.12);
}
.editor-card-icon { font-size: 34px; margin-bottom: 12px; }
.editor-card-title { font-size: 16px; font-weight: 800; margin-bottom: 8px; }
.editor-card-desc { font-size: 13.5px; color: var(--text-sub); line-height: 1.7; }
.font-samples {
  display: flex;
  justify-content: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 12px;
}
.font-sample {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 50px;
  background: var(--mint-light);
  color: var(--mint-dark);
}

/* ── FAQ ── */
.faq-list { margin-top: 40px; max-width: 720px; margin-left: auto; margin-right: auto; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
  overflow: hidden;
}
.faq-q {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  gap: 12px;
}
.faq-q:hover { background: #fafafa; }
.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--mint-light);
  color: var(--mint);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
  transition: transform .2s;
}
.faq-item.is-open .faq-icon { transform: rotate(45deg); }
.faq-a {
  display: none;
  padding: 0 20px 18px;
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  background: white;
}
.faq-item.is-open .faq-a { display: block; }

/* ── 特徴 ── */
.traits-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.trait-item { text-align: center; }
.trait-icon {
  width: 64px;
  height: 64px;
  background: var(--mint-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 28px;
}
.trait-title { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
.trait-desc { font-size: 13px; color: var(--text-sub); line-height: 1.7; }

/* ── CTA ── */
.cta-section {
  background: linear-gradient(135deg, var(--mint) 0%, var(--mint-dark) 100%);
  padding: 80px 0;
  text-align: center;
  color: white;
}
.cta-title { font-size: clamp(24px, 4vw, 36px); font-weight: 800; margin-bottom: 12px; }
.cta-desc { font-size: 16px; opacity: .85; margin-bottom: 32px; }
.cta-section .store-btn { background: white; color: var(--mint-dark); }
.cta-section .store-btn:hover { background: #f0faf8; color: var(--mint-dark); }
.cta-section .store-btn--soon { background: rgba(255,255,255,.3); color: white; cursor: default; }

/* ── 内部ページ共通 ── */
.page-hero {
  background: var(--beige);
  padding: 56px 0 48px;
  text-align: center;
}
.page-hero-icon {
  width: 64px;
  height: 64px;
  background: var(--mint-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 28px;
}
.page-body { max-width: 800px; margin: 0 auto; padding: 56px 20px; }
.page-body h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin: 40px 0 12px;
  padding-top: 8px;
}
.page-body h2:first-child { margin-top: 0; }
.page-body p { font-size: 15px; color: var(--text-sub); line-height: 1.85; margin-bottom: 12px; }
.page-body ul { padding-left: 20px; margin-bottom: 12px; }
.page-body li { font-size: 15px; color: var(--text-sub); line-height: 1.8; }
.page-body .updated {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.page-body .section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 32px 0;
}

/* ── お問い合わせ ── */
.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 40px 0;
}
.contact-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: var(--text);
  transition: box-shadow .2s, transform .2s;
  display: block;
}
.contact-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); color: var(--text); }
.contact-card-icon { font-size: 28px; margin-bottom: 12px; }
.contact-card-title { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.contact-card-desc { font-size: 13px; color: var(--text-sub); }

/* ── 共有案内 ── */
.share-page {
  background: var(--beige);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}
.share-card {
  background: white;
  border-radius: 20px;
  padding: 40px 32px;
  max-width: 400px;
  width: 100%;
  box-shadow: var(--shadow);
  text-align: center;
}
.share-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}
.share-logo-icon {
  width: 40px;
  height: 40px;
  background: var(--mint);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: white;
}
.share-logo-name { font-size: 18px; font-weight: 800; color: var(--text); }
.share-illustration { font-size: 64px; margin-bottom: 20px; }
.share-title { font-size: 20px; font-weight: 800; color: var(--text); margin-bottom: 10px; }
.share-desc { font-size: 14px; color: var(--text-sub); line-height: 1.7; margin-bottom: 28px; }
.share-open-btn {
  display: block;
  width: 100%;
  padding: 16px;
  background: var(--mint);
  color: white;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  margin-bottom: 24px;
  transition: background .15s;
}
.share-open-btn:hover { background: var(--mint-dark); color: white; }
.share-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-light);
  font-size: 12px;
  margin-bottom: 20px;
}
.share-divider::before,
.share-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.share-install-note { font-size: 13px; color: var(--text-sub); margin-bottom: 14px; }
.share-reinstall { font-size: 12px; color: var(--text-light); margin-top: 16px; line-height: 1.6; }

/* ── 404 ── */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 32px 20px;
  background: var(--beige);
}

/* ── レスポンシブ ── */
@media (max-width: 900px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .traits-grid { grid-template-columns: repeat(2, 1fr); }
  .screens-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .header-nav { display: none; }
  .header-menu-btn { display: flex; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero { padding-top: 48px; }
  .hero-text { padding-bottom: 0; text-align: center; }
  .hero-text .store-buttons { justify-content: center; }
  .hero-mockup { padding: 40px 0 0; }
  .phone-frame { width: 220px; }
  .phone-screen { height: 390px; }
  .pdf-section-inner { grid-template-columns: 1fr; }
  .pdf-preview { order: -1; }
  .contact-cards { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .editor-highlights { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .theme-cover { width: 120px; }
  .theme-cover:nth-child(2),
  .theme-cover:nth-child(3),
  .theme-cover:nth-child(4) { margin-left: -20px; }
}

@media (max-width: 540px) {
  .feature-grid { grid-template-columns: 1fr; }
  .screens-grid { grid-template-columns: 1fr 1fr; }
  .traits-grid { grid-template-columns: 1fr 1fr; }
  .footer-nav { grid-template-columns: 1fr; }
}