/* ========================================
   かんたん使い方ガイド — モバイルファースト
   配色: アクセント1色 + ニュートラル
   ======================================== */

:root {
  --sug-bg: #faf8f5;
  --sug-bg-alt: #f3f1ed;
  --sug-surface: #ffffff;
  --sug-border: #e5e1da;
  --sug-text: #2d2a26;
  --sug-text-sub: #5c5752;
  --sug-text-muted: #8a847c;
  --sug-accent: #e07850;
  --sug-accent-soft: rgba(224, 120, 80, 0.1);
  --sug-accent-dark: #c85e3a;
  --sug-muted-bg: #f3f1ed;
  --sug-radius: 14px;
  --sug-radius-sm: 10px;
  --sug-shadow: 0 2px 12px rgba(45, 42, 38, 0.05);
  --sug-font-display: "Fraunces", "Noto Sans JP", Georgia, serif;
  --sug-font-body: "Work Sans", "Noto Sans JP", sans-serif;
  --sug-header-offset: 72px;
  --sug-max: 640px;
  --sug-step-size: 40px;
  --sug-touch-min: 48px;
}

.sug-page {
  min-height: 100vh;
  background: var(--sug-bg);
  padding: calc(var(--sug-header-offset) + 8px) 14px 88px;
  font-family: var(--sug-font-body);
  color: var(--sug-text);
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

.sug-wrap {
  max-width: var(--sug-max);
  margin: 0 auto;
}

/* ----- ヒーロー（モバイル優先・画像はmd以上） ----- */
.sug-hero {
  background: var(--sug-surface);
  border: 1px solid var(--sug-border);
  border-radius: var(--sug-radius);
  padding: 20px 16px;
  margin-bottom: 20px;
  box-shadow: var(--sug-shadow);
}

.sug-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--sug-accent-dark);
  margin-bottom: 8px;
}

.sug-hero-title {
  font-family: var(--sug-font-display);
  font-size: clamp(1.5rem, 7vw, 1.85rem);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 10px;
}

.sug-hero-lead {
  font-size: 1rem;
  color: var(--sug-text-sub);
  margin: 0;
}

.sug-hero-lead strong {
  color: var(--sug-text);
}

.sug-overview {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 16px;
}

.sug-overview-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 12px;
  align-items: center;
  padding: 12px 14px;
  background: var(--sug-muted-bg);
  border-radius: var(--sug-radius-sm);
  border: 1px solid var(--sug-border);
}

.sug-overview-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  background: var(--sug-accent);
  color: #fff;
}

.sug-overview-label {
  display: block;
  font-size: 1rem;
  font-weight: 700;
}

.sug-overview-desc {
  font-size: 0.82rem;
  color: var(--sug-text-muted);
}

/* ----- パス選択 eSIM / SIMカード ----- */
.sug-path-input,
.sug-os-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.sug-path-tabs,
.sug-os-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 20px;
}

.sug-path-tab,
.sug-os-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: var(--sug-touch-min);
  padding: 14px 10px;
  border-radius: var(--sug-radius-sm);
  border: 2px solid var(--sug-border);
  background: var(--sug-surface);
  cursor: pointer;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 700;
  transition: border-color 0.15s, background 0.15s;
}

.sug-os-tab i {
  font-size: 1.35rem;
  color: var(--sug-text-muted);
}

.sug-os-tab small {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--sug-text-muted);
}

#sug-path-esim:checked ~ .sug-path-tabs label[for="sug-path-esim"],
#sug-path-psim:checked ~ .sug-path-tabs label[for="sug-path-psim"] {
  border-color: var(--sug-accent);
  background: var(--sug-accent-soft);
}

.sug-panel {
  display: none;
}

#sug-path-esim:checked ~ .sug-panel-esim,
#sug-path-psim:checked ~ .sug-panel-psim {
  display: block;
}

/* OSパネル（各セクション内） */
.sug-os-group .sug-os-panel {
  display: none;
}

.sug-os-group #sug-os-iphone-esim:checked ~ .sug-os-panel-iphone,
.sug-os-group #sug-os-android-esim:checked ~ .sug-os-panel-android,
.sug-os-group #sug-os-iphone-apn-esim:checked ~ .sug-os-panel-iphone,
.sug-os-group #sug-os-android-apn-esim:checked ~ .sug-os-panel-android,
.sug-os-group #sug-os-iphone-insert-psim:checked ~ .sug-os-panel-iphone,
.sug-os-group #sug-os-android-insert-psim:checked ~ .sug-os-panel-android,
.sug-os-group #sug-os-iphone-psim:checked ~ .sug-os-panel-iphone,
.sug-os-group #sug-os-android-psim:checked ~ .sug-os-panel-android {
  display: block;
}

.sug-os-group #sug-os-iphone-esim:checked ~ .sug-os-tabs label[for="sug-os-iphone-esim"],
.sug-os-group #sug-os-android-esim:checked ~ .sug-os-tabs label[for="sug-os-android-esim"],
.sug-os-group #sug-os-iphone-apn-esim:checked ~ .sug-os-tabs label[for="sug-os-iphone-apn-esim"],
.sug-os-group #sug-os-android-apn-esim:checked ~ .sug-os-tabs label[for="sug-os-android-apn-esim"],
.sug-os-group #sug-os-iphone-insert-psim:checked ~ .sug-os-tabs label[for="sug-os-iphone-insert-psim"],
.sug-os-group #sug-os-android-insert-psim:checked ~ .sug-os-tabs label[for="sug-os-android-insert-psim"],
.sug-os-group #sug-os-iphone-psim:checked ~ .sug-os-tabs label[for="sug-os-iphone-psim"],
.sug-os-group #sug-os-android-psim:checked ~ .sug-os-tabs label[for="sug-os-android-psim"] {
  border-color: var(--sug-accent);
  background: var(--sug-accent-soft);
}

.sug-os-group #sug-os-iphone-esim:checked ~ .sug-os-tabs label[for="sug-os-iphone-esim"] i,
.sug-os-group #sug-os-android-esim:checked ~ .sug-os-tabs label[for="sug-os-android-esim"] i,
.sug-os-group #sug-os-iphone-apn-esim:checked ~ .sug-os-tabs label[for="sug-os-iphone-apn-esim"] i,
.sug-os-group #sug-os-android-apn-esim:checked ~ .sug-os-tabs label[for="sug-os-android-apn-esim"] i,
.sug-os-group #sug-os-iphone-insert-psim:checked ~ .sug-os-tabs label[for="sug-os-iphone-insert-psim"] i,
.sug-os-group #sug-os-android-insert-psim:checked ~ .sug-os-tabs label[for="sug-os-android-insert-psim"] i,
.sug-os-group #sug-os-iphone-psim:checked ~ .sug-os-tabs label[for="sug-os-iphone-psim"] i,
.sug-os-group #sug-os-android-psim:checked ~ .sug-os-tabs label[for="sug-os-android-psim"] i {
  color: var(--sug-accent);
}

.sug-os-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--sug-text-muted);
  margin: 16px 0 10px;
  letter-spacing: 0.04em;
}

/* ----- フェーズ ----- */
.sug-phase {
  margin-bottom: 28px;
  scroll-margin-top: calc(var(--sug-header-offset) + 12px);
}

.sug-phase-head {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--sug-accent);
}

.sug-phase-num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--sug-accent-dark);
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.sug-phase-title {
  font-family: var(--sug-font-display);
  font-size: clamp(1.25rem, 5vw, 1.45rem);
  font-weight: 700;
  margin: 0 0 4px;
  line-height: 1.35;
}

.sug-phase-sub {
  margin: 0;
  font-size: 0.9rem;
  color: var(--sug-text-sub);
}

/* ----- ステップ ----- */
.sug-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sug-steps--gap-top {
  margin-top: 16px;
}

.sug-step {
  background: var(--sug-surface);
  border: 1px solid var(--sug-border);
  border-radius: var(--sug-radius);
  padding: 16px 14px;
}

.sug-step-action {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--sug-text);
  margin-bottom: 6px;
  line-height: 1.45;
}

.sug-step-action::before {
  content: "▶ ";
  color: var(--sug-accent);
}

.sug-step-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 10px;
}

.sug-step-text {
  margin: 0 0 10px;
  font-size: 0.92rem;
  color: var(--sug-text-sub);
}

.sug-step-figure {
  margin: 12px 0;
  border-radius: var(--sug-radius-sm);
  overflow: hidden;
  border: 1px solid var(--sug-border);
}

.sug-step-figure img {
  width: 100%;
  height: auto;
  display: block;
}

.sug-step-figure figcaption {
  padding: 8px 10px;
  font-size: 0.78rem;
  color: var(--sug-text-muted);
  background: var(--sug-muted-bg);
}

.sug-do-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sug-do-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
}

.sug-do-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 16px;
  height: 16px;
  border: 2px solid var(--sug-accent);
  border-radius: 4px;
  background: var(--sug-accent-soft);
}

.sug-method {
  padding: 14px;
  margin-bottom: 10px;
  border-radius: var(--sug-radius-sm);
  border: 1px solid var(--sug-border);
  background: var(--sug-muted-bg);
}

.sug-method:last-child {
  margin-bottom: 0;
}

.sug-method-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  background: var(--sug-accent);
  color: #fff;
  margin-bottom: 8px;
}

.sug-method-tag--alt {
  background: var(--sug-text-sub);
}

.sug-method h4 {
  margin: 0 0 8px;
  font-size: 0.95rem;
  font-weight: 700;
}

.sug-method p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--sug-text-sub);
  line-height: 1.55;
}

/* 最重要ボックス（APN） */
.sug-critical {
  margin: 20px 0;
  padding: 18px 16px;
  border-radius: var(--sug-radius);
  border: 3px solid var(--sug-accent);
  background: var(--sug-surface);
}

.sug-critical-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 800;
  color: #fff;
  background: var(--sug-accent);
  padding: 6px 12px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.sug-critical-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0 0 10px;
  line-height: 1.4;
}

.sug-critical-text {
  margin: 0 0 12px;
  font-size: 0.92rem;
  color: var(--sug-text-sub);
  line-height: 1.6;
}

.sug-critical-text strong {
  color: var(--sug-text);
}

/* 注意 */
.sug-note {
  display: flex;
  gap: 10px;
  padding: 12px;
  border-radius: var(--sug-radius-sm);
  margin-top: 12px;
  font-size: 0.88rem;
  line-height: 1.55;
  border: 1px solid var(--sug-border);
  background: var(--sug-muted-bg);
  color: var(--sug-text-sub);
}

.sug-note--strong {
  border-color: var(--sug-accent);
  background: var(--sug-accent-soft);
  color: var(--sug-text);
}

.sug-note-icon {
  flex-shrink: 0;
  color: var(--sug-accent);
}

.sug-note p {
  margin: 0;
}

.sug-note strong {
  color: var(--sug-text);
}

.sug-carrier-list {
  margin: 8px 0 0;
  padding-left: 1.1em;
  font-size: 0.88rem;
}

.sug-carrier-list li {
  margin-bottom: 4px;
}

/* CTA */
.sug-cta-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 14px;
}

.sug-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--sug-touch-min);
  padding: 14px 18px;
  border-radius: var(--sug-radius-sm);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  width: 100%;
}

.sug-btn--primary {
  background: var(--sug-accent);
  color: #fff;
}

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

.sug-btn--ghost {
  background: var(--sug-surface);
  color: var(--sug-text);
  border: 1px solid var(--sug-border);
}

.sug-btn--ghost:hover {
  border-color: var(--sug-accent);
  color: var(--sug-accent-dark);
}

.sug-fork {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 10px 0;
}

.sug-fork-card {
  padding: 14px;
  border: 1px solid var(--sug-border);
  border-radius: var(--sug-radius-sm);
  background: var(--sug-muted-bg);
}

.sug-fork-card h4 {
  margin: 0 0 6px;
  font-size: 0.95rem;
}

.sug-fork-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--sug-text-sub);
}

/* モバイル目次（横スクロール） */
.sug-mobile-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 8px;
  margin-bottom: 16px;
  scrollbar-width: none;
}

.sug-mobile-nav::-webkit-scrollbar {
  display: none;
}

.sug-mobile-nav a {
  flex-shrink: 0;
  padding: 10px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  border-radius: 999px;
  border: 1px solid var(--sug-border);
  background: var(--sug-surface);
  color: var(--sug-text-sub);
}

.sug-mobile-nav a:hover {
  border-color: var(--sug-accent);
  color: var(--sug-accent-dark);
}

/* FAQ */
.sug-trouble {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--sug-border);
}

.sug-trouble-title {
  font-family: var(--sug-font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0 0 14px;
}

.sug-faq {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sug-faq details {
  background: var(--sug-surface);
  border: 1px solid var(--sug-border);
  border-radius: var(--sug-radius-sm);
}

.sug-faq summary {
  padding: 16px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  list-style: none;
  min-height: var(--sug-touch-min);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sug-faq summary::-webkit-details-marker {
  display: none;
}

.sug-faq summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--sug-accent);
}

.sug-faq details[open] summary::after {
  content: "−";
}

.sug-faq-answer {
  padding: 0 16px 16px;
  font-size: 0.9rem;
  color: var(--sug-text-sub);
}

.sug-faq-answer a {
  color: var(--sug-accent-dark);
  text-decoration: underline;
}

.sug-footer-cta {
  margin-top: 32px;
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--sug-text);
  border-radius: var(--sug-radius);
  color: #fff;
}

.sug-footer-cta h2 {
  font-size: 1.15rem;
  margin: 0 0 8px;
  width: 100%;
}

.sug-footer-lines {
  width: 100%;
  max-width: 520px;
  margin: 0 0 18px;
  padding: 0 4px;
  text-wrap: pretty;
}

.sug-footer-lines p {
  margin: 0 0 10px;
  font-size: 0.92rem;
  line-height: 1.7;
  opacity: 0.92;
}

.sug-footer-lines p:last-child {
  margin-bottom: 0;
}

.sug-footer-cta .sug-cta-row {
  flex-direction: column;
  align-items: stretch;
  width: 100%;
  max-width: 280px;
  margin-top: 0;
}

.sug-footer-cta .sug-btn {
  width: 100%;
}

.sug-footer-cta .sug-btn--ghost {
  background: #fff;
  border: none;
  color: var(--sug-text);
}

.sug-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  font-size: 0.875rem;
  color: var(--sug-text-sub);
  margin-bottom: 12px;
}

.sug-back:hover {
  color: var(--sug-accent);
}

.sug-layout .sug-nav {
  display: none;
}

/* タブレット以上 */
@media (min-width: 600px) {
  :root {
    --sug-max: 720px;
    --sug-step-size: 44px;
  }

  .sug-page {
    padding-left: 20px;
    padding-right: 20px;
  }

  .sug-overview {
    flex-direction: row;
  }

  .sug-overview-item {
    flex: 1;
    grid-template-columns: 1fr;
    text-align: center;
    padding: 14px 10px;
  }

  .sug-overview-num {
    margin: 0 auto 8px;
  }

  .sug-cta-row {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sug-btn {
    width: auto;
    min-width: 200px;
  }

  .sug-fork {
    flex-direction: row;
  }

  .sug-fork-card {
    flex: 1;
  }
}

@media (min-width: 960px) {
  :root {
    --sug-max: 1120px;
    --sug-header-offset: 88px;
  }

  .sug-mobile-nav {
    display: none;
  }

  .sug-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 28px;
    align-items: start;
  }

  .sug-layout .sug-nav {
    display: block;
    position: sticky;
    top: calc(var(--sug-header-offset) + 12px);
    align-self: start;
    width: 200px;
    height: fit-content;
    max-height: calc(100vh - var(--sug-header-offset) - 24px);
    overflow-y: auto;
    padding: 14px;
    background: var(--sug-surface);
    border: 1px solid var(--sug-border);
    border-radius: var(--sug-radius);
    z-index: 2;
  }

  .sug-nav-title {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--sug-text-muted);
    margin: 0 0 10px;
  }

  .sug-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .sug-nav-list li {
    margin-bottom: 4px;
  }

  .sug-nav-link {
    display: block;
    padding: 8px 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--sug-text-sub);
    border-radius: 6px;
  }

  .sug-nav-link:hover {
    background: var(--sug-muted-bg);
    color: var(--sug-accent-dark);
  }
}

@media (prefers-reduced-motion: reduce) {
  .sug-path-tab,
  .sug-os-tab,
  .sug-btn {
    transition: none;
  }
}