/* ==========================================================
   エリーナ公式サイト スタイルシート
   色・文字サイズは冒頭の変数でまとめて管理しています。
   ========================================================== */

:root {
  /* ブランドカラー（obakeron_brand_design_sheet.png を基準） */
  --color-ivory: #fffbf3;
  --color-white: #ffffff;
  --color-green: #52a662;
  --color-green-dark: #3a7c48;
  --color-green-pale: #e7f3e9;
  --color-lavender: #cbc2da;
  --color-lavender-dark: #8f7fae;
  --color-lavender-pale: #f1eef8;
  --color-pink: #f6d7de;
  --color-pink-dark: #e0a3b3;
  --color-text: #3a3a3a;
  --color-text-soft: #5c5c5c;
  --color-border: #e7e0d3;

  /* 文字サイズ */
  --font-body: 19px;
  --font-small: 17px;
  --font-h1: clamp(2rem, 5vw, 2.6rem);
  --font-h2: clamp(1.6rem, 4vw, 2.05rem);
  --font-h3: 1.3rem;

  --line-height: 1.85;
  --max-width: 1080px;
  --max-width-text: 760px;
  --radius: 18px;
  --header-offset: 64px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-ivory);
  color: var(--color-text);
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  font-size: var(--font-body);
  line-height: var(--line-height);
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3 {
  color: var(--color-green-dark);
  line-height: 1.5;
  margin: 0 0 0.6em;
}

h1 { font-size: var(--font-h1); }
h2 { font-size: var(--font-h2); text-align: center; }
h3 { font-size: var(--font-h3); }

p {
  margin: 0 0 1em;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

section[id] {
  scroll-margin-top: var(--header-offset);
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
}

/* ---------------- ヘッダー ---------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 251, 243, 0.94);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(4px);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}

.brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.1rem;
  font-weight: 700;
  color: var(--color-green-dark);
  text-decoration: none;
  line-height: 1.2;
}

.brand-main {
  font-size: 1.16rem;
  letter-spacing: 0.02em;
}

.brand-sub {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-text-soft);
}

.site-nav {
  display: flex;
  gap: 1.4rem;
  flex-wrap: wrap;
}

.site-nav a {
  text-decoration: none;
  font-size: 1rem;
  color: var(--color-text-soft);
  font-weight: 600;
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--color-green-dark);
}

/* ---------------- ボタン共通 ---------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0.7em 1.6em;
  border-radius: 999px;
  font-size: 1.05rem;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
  cursor: pointer;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-green);
  color: var(--color-white);
  box-shadow: 0 6px 16px rgba(82, 166, 98, 0.3);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-green-dark);
  border-color: var(--color-green);
}

.btn-ghost {
  background: var(--color-lavender-pale);
  color: var(--color-lavender-dark);
  border-color: var(--color-lavender);
}

.btn.is-pending,
a.is-pending {
  opacity: 0.55;
  cursor: default;
  box-shadow: none;
}
.btn.is-pending:hover {
  transform: none;
}

/* ---------------- 1. ファーストビュー ---------------- */

.hero {
  padding: 3.5rem 1.5rem 4rem;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 3rem;
  flex-wrap: wrap;
}

.hero-text {
  flex: 1 1 420px;
  min-width: 280px;
}

.hero-text h1 {
  margin-bottom: 0.7em;
}

.hero-lead {
  color: var(--color-text-soft);
  font-size: 1.05rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.hero-character {
  flex: 0 0 auto;
  width: min(300px, 60vw);
  margin: 0 auto;
}

.hero-character img {
  width: 100%;
  height: auto;
}

/* ---------------- 2. こんなことをしています ---------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.6rem;
  margin-top: 2.2rem;
}

.card {
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
  border: 1px solid var(--color-border);
}

.card h3 {
  color: var(--color-green-dark);
}

.card p {
  margin: 0;
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.activities-note {
  text-align: center;
  margin-top: 1.8rem;
  font-weight: 700;
  font-size: var(--font-small);
  color: var(--color-lavender-dark);
  background: var(--color-lavender-pale);
  border-radius: var(--radius);
  padding: 0.9rem 1.4rem;
  max-width: var(--max-width-text);
  margin-left: auto;
  margin-right: auto;
}

/* ---------------- 3. 本をのぞいてみる（本棚一覧） ---------------- */

.bookshelf {
  display: grid;
  grid-template-columns: repeat(6, minmax(90px, 120px));
  justify-content: center;
  gap: 22px 14px;
  margin-top: 2.2rem;
}

.shelf-book {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: var(--color-text);
  transition: transform 0.15s ease;
}

.shelf-book:hover,
.shelf-book:focus-visible {
  transform: translateY(-3px);
}

.shelf-book.is-pending {
  opacity: 0.6;
}

.shelf-book.is-pending:hover {
  transform: none;
}

.shelf-cover {
  width: 100%;
  aspect-ratio: 7 / 10;
  background: var(--color-lavender-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 6px 14px rgba(58, 58, 58, 0.12);
}

.shelf-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.shelf-cover.placeholder {
  border: 2px dashed var(--color-lavender);
  box-shadow: none;
}

.shelf-cover.placeholder svg {
  width: 28px;
  height: 28px;
  color: var(--color-lavender-dark);
  opacity: 0.7;
}

.shelf-title {
  margin-top: 0.6rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text-soft);
  text-align: center;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.bookshelf-more {
  display: flex;
  margin: 2.4rem auto 0;
}

/* ---------------- 4. 講座で学んでみる ---------------- */

.section-lead {
  text-align: center;
  color: var(--color-text-soft);
  max-width: var(--max-width-text);
  margin: 0 auto 2.2rem;
}

.udemy-panel {
  max-width: var(--max-width-text);
  margin: 0 auto;
  text-align: center;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2.4rem 1.8rem;
}

.udemy-panel .section-lead {
  margin-bottom: 1.6rem;
}

.udemy-panel .btn {
  margin: 0 auto;
}

/* ---------------- 5. 作品・クリエイティブ活動 ---------------- */

.creative {
  padding-top: 3.2rem;
  padding-bottom: 3.2rem;
}

.mini-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.mini-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.4rem;
}

.mini-card p {
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.mini-card .btn {
  min-height: 46px;
  font-size: 0.98rem;
  padding: 0.55em 1.1em;
}

/* ---------------- 6. 出版のこと、話してみる ---------------- */

.publishing {
  max-width: var(--max-width);
  text-align: center;
}

.publishing-layout {
  display: grid;
  grid-template-columns: 230px 1fr;
  grid-template-areas:
    "lead  lead"
    "label label"
    "img   list"
    "ctas  ctas";
  column-gap: 3rem;
  row-gap: 1.6rem;
  align-items: start;
  width: fit-content;
  margin: 0 auto;
}

.publishing-layout > .section-lead { grid-area: lead; margin-bottom: 0; }
.publishing-layout > .publishing-label { grid-area: label; margin: 0 auto; }
.publishing-layout > .publishing-points { grid-area: list; align-self: center; margin: 0; }
.publishing-layout > .publishing-ctas { grid-area: ctas; }

.publishing-illustration {
  grid-area: img;
  align-self: center;
  justify-self: center;
  width: 230px;
}

.publishing-illustration img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 10px 24px rgba(58, 58, 58, 0.12);
}

.publishing-label {
  font-weight: 700;
  color: var(--color-green-dark);
}

.publishing-points {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.9rem;
  max-width: 480px;
  text-align: left;
}

.publishing-points li {
  background: var(--color-green-pale);
  border-radius: 14px;
  padding: 0.9rem 1.2rem;
  font-weight: 600;
  color: var(--color-green-dark);
}

.publishing .btn {
  margin: 0 auto;
}

.publishing-ctas {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
}

.publishing-note {
  color: var(--color-text-soft);
  font-size: var(--font-small);
  margin: 0;
}

/* ---------------- お手伝いできること ---------------- */

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.4rem;
  margin-top: 2.2rem;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.8rem 1.6rem;
}

.service-card:first-child {
  grid-row: span 2;
}

.service-card p {
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.service-card .service-concept {
  color: var(--color-green-dark);
  font-weight: 700;
  font-size: 1.05rem;
}

.service-note {
  background: var(--color-green-pale);
  border-radius: 12px;
  padding: 0.8rem 1rem;
}

.plan-list {
  display: grid;
  gap: 0.9rem;
  margin-top: 1.2rem;
}

.plan-item {
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 1rem;
  background: var(--color-ivory);
}

.plan-item strong {
  display: block;
  color: var(--color-green-dark);
}

.price-note {
  color: var(--color-lavender-dark);
  font-weight: 700;
}

.plan-item p {
  margin: 0.5rem 0 0;
}

.plan-toggle-wrap {
  margin-top: 0.8rem;
}

.plan-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  width: fit-content;
  min-height: 40px;
  padding: 0.5em 1.1em;
  border-radius: 999px;
  border: 2px solid var(--color-green);
  color: var(--color-green-dark);
  font-weight: 700;
  font-size: 0.92rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.plan-toggle::-webkit-details-marker {
  display: none;
}

.plan-toggle:hover {
  background: var(--color-green-pale);
}

.plan-toggle-icon {
  display: inline-block;
  transition: transform 0.15s ease;
  font-size: 0.75em;
}

.plan-toggle-wrap[open] .plan-toggle-icon {
  transform: rotate(180deg);
}

.plan-detail {
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--color-border);
}

.plan-price-sub {
  color: var(--color-text-soft);
  font-size: var(--font-small);
  margin: 0.2rem 0 0;
}

.plan-detail-concept {
  color: var(--color-green-dark);
  font-weight: 700;
  margin: 1rem 0 0;
}

.plan-detail-heading {
  color: var(--color-green-dark);
  font-weight: 700;
  font-size: 0.95rem;
  margin: 1rem 0 0.4rem;
}

.plan-detail-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.plan-detail-list li {
  margin-bottom: 0.3rem;
}

.plan-detail-important {
  margin: 1rem 0 0;
  padding: 0.8rem 1rem;
  background: var(--color-lavender-pale);
  border-radius: 12px;
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.plan-detail-note {
  margin: 1rem 0 0;
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.plan-detail-extend {
  margin: 0.4rem 0 0;
  color: var(--color-lavender-dark);
  font-weight: 700;
  font-size: var(--font-small);
}

.plan-detail-actions {
  margin: 1.2rem 0 0;
}

.plan-detail-actions .btn {
  min-height: 46px;
  font-size: 0.98rem;
  padding: 0.55em 1.1em;
}

.monitor-tones {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 0.8rem 0 0;
}

.monitor-tone {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 1rem 0.5rem;
  text-align: center;
}

.monitor-tone-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 0.6rem;
  border-radius: 50%;
  display: block;
}

.monitor-tone-title {
  font-weight: 700;
  color: var(--color-green-dark);
  margin: 0 0 0.4rem;
  font-size: 14px;
  white-space: nowrap;
}

.monitor-tone-desc {
  color: var(--color-text-soft);
  font-size: 0.85rem;
  margin: 0;
  text-align: left;
}

/* 一部のブラウザ環境でも確実に閉じた状態を隠すための保険 */
.plan-toggle-wrap:not([open]) .plan-detail {
  display: none;
}

.collab-example {
  margin-top: 1.6rem;
  padding-top: 1.6rem;
  border-top: 1px dashed var(--color-border);
  text-align: center;
}

.collab-example-label {
  font-weight: 700;
  color: var(--color-lavender-dark);
  font-size: var(--font-small);
  margin: 0 0 1rem;
}

.collab-cover {
  display: block;
  width: 140px;
  aspect-ratio: 7 / 10;
  margin: 0 auto 1rem;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 18px rgba(58, 58, 58, 0.1);
}

.collab-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collab-title {
  font-weight: 700;
  color: var(--color-green-dark);
  margin: 0 0 0.4rem;
}

.collab-author {
  color: var(--color-text-soft);
  font-size: var(--font-small);
  margin: 0 0 0.4rem;
}

.collab-subtitle {
  color: var(--color-text-soft);
  font-size: var(--font-small);
  margin: 0 0 0.9rem;
}

.collab-info .voice-badge {
  margin: 0 0 0.9rem;
}

.collab-info .btn {
  min-height: 46px;
  font-size: 0.98rem;
  padding: 0.55em 1.1em;
}

.work-note {
  text-align: center;
  margin: 2rem 0 0;
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.work-note a {
  color: var(--color-green-dark);
  font-weight: 700;
}

/* ---------------- お客様の声 ---------------- */

.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.voice-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.4rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.voice-quote {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
}

/* 人物アイコン：差し替える場合は img の src を変えるだけでOK */
.voice-avatar {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--color-lavender-pale);
}

.voice-bubble {
  position: relative;
  flex: 1;
  margin: 0;
  background: var(--color-green-pale);
  color: var(--color-text);
  font-weight: 600;
  border-radius: 14px;
  padding: 0.9rem 1rem 0.9rem 1.7rem;
}

.voice-bubble::before {
  content: "\201C";
  position: absolute;
  top: 0.3rem;
  left: 0.55rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.7rem;
  line-height: 1;
  color: var(--color-green-dark);
  opacity: 0.4;
}

.voice-badge {
  display: inline-block;
  width: fit-content;
  background: var(--color-lavender-pale);
  color: var(--color-lavender-dark);
  border-radius: 999px;
  padding: 0.3em 0.9em;
  font-weight: 700;
  font-size: 0.85rem;
}

.voice-book {
  color: var(--color-text-soft);
  font-weight: 600;
  font-size: 0.88rem;
  margin: 0;
}

.voice-name {
  color: var(--color-text);
  font-weight: 700;
  font-size: var(--font-small);
  margin: 0;
}

/* hidden な voice-card は、display:flex を上書きして確実に隠す */
.voice-card[hidden] {
  display: none;
}

.voices-more {
  display: flex;
  margin: 2.4rem auto 0;
}

/* ---------------- 出版サポート事例ページ（publishing-voices.html） ---------------- */

.voices-page-title {
  text-align: center;
  font-size: var(--font-h2);
}

.voices-breadcrumb {
  margin: 0 0 1.6rem;
}

.voices-breadcrumb a {
  color: var(--color-green-dark);
  font-weight: 700;
  text-decoration: none;
}

.voices-breadcrumb a:hover,
.voices-breadcrumb a:focus-visible {
  text-decoration: underline;
}

.voice-detail-list {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  max-width: var(--max-width-text);
  margin: 2.2rem auto 0;
}

.voice-detail-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.6rem 1.6rem;
}

.voice-detail-name {
  margin: 0;
  font-size: 21px;
}

.voice-detail-book {
  font-weight: 700;
  font-size: 19px;
  margin: 0.5rem 0 0;
}

.voice-detail-subtitle {
  color: var(--color-text-soft);
  font-weight: 400;
  font-size: 15px;
}

.voice-detail-card .voice-badge {
  margin: 0.6rem 0 0;
}

.voice-detail-quote {
  margin: 1rem 0;
  padding: 0.85rem 1.1rem;
  border-left: 4px solid var(--color-lavender);
  background: var(--color-lavender-pale);
  border-radius: 0 12px 12px 0;
}

.voice-detail-quote p {
  margin: 0 0 0.6em;
  font-size: 16px;
}

.voice-detail-quote p:last-child {
  margin-bottom: 0;
}

.voice-detail-card .plan-detail-heading {
  font-size: 17px;
}

.voice-detail-card .plan-detail-list {
  font-size: 16px;
}

.voice-detail-quote .plan-detail-heading:first-child {
  margin-top: 0;
}

.voice-detail-item-text {
  color: var(--color-text);
  font-size: 16px;
  margin: 0 0 1rem;
}

.voice-detail-quote .voice-detail-item-text:last-child {
  margin-bottom: 0;
}

.voice-detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.1rem;
}

.voice-detail-actions .btn {
  min-height: 46px;
  font-size: 0.98rem;
  padding: 0.55em 1.1em;
}

.voices-page-note {
  text-align: center;
  color: var(--color-text-soft);
  font-size: var(--font-small);
  margin: 2.4rem auto 0;
}

.voices-back {
  display: flex;
  margin: 3rem auto 0;
}

/* ---------------- 7. エリーナってどんな人？ ---------------- */

.profile-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
  background: linear-gradient(180deg, var(--color-lavender-pale), var(--color-green-pale));
  border-radius: 28px;
  padding: 3rem 2rem;
}

.profile-character {
  margin: 0 auto 1.2rem;
}

.profile-lead {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-text);
}

.tag-list {
  list-style: none;
  padding: 0;
  margin: 1.6rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
}

.tag-list li {
  background: var(--color-lavender-pale);
  color: var(--color-lavender-dark);
  border-radius: 999px;
  padding: 0.5em 1.1em;
  font-weight: 700;
  font-size: var(--font-small);
}

/* ---------------- 8. SNS・発信 ---------------- */

.sns-character {
  width: 84px;
  height: auto;
  margin: 0 auto 0.8rem;
}

.sns-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.2rem;
  max-width: var(--max-width-text);
  margin: 2rem auto 0;
}

.sns-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60px;
  border-radius: var(--radius);
  background: var(--color-white);
  border: 2px solid var(--color-green);
  color: var(--color-green-dark);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  padding: 0.8rem 1.2rem;
  text-align: center;
  transition: transform 0.15s ease;
}

.sns-card:hover,
.sns-card:focus-visible {
  transform: translateY(-3px);
}

.sns-card-title {
  display: block;
}

.sns-card-sub {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  opacity: 0.75;
  margin-top: 0.2em;
}

.sns-card.is-pending {
  border-color: var(--color-border);
  color: var(--color-text-soft);
  background: var(--color-ivory);
}
.sns-card.is-pending:hover {
  transform: none;
}

/* ---------------- 8. フッター ---------------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 2.5rem 1.5rem 3rem;
  text-align: center;
  color: var(--color-text-soft);
  font-size: var(--font-small);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  color: var(--color-green-dark);
  font-weight: 700;
  margin-bottom: 0.4em;
  line-height: 1.35;
}

.footer-note {
  font-size: 0.9rem;
  color: #9a9a9a;
}

.footer-copy {
  margin: 0.6em 0 0;
  font-size: 0.85rem;
}

/* ---------------- レスポンシブ（スマホ） ---------------- */

@media (max-width: 720px) {
  :root {
    --font-body: 18px;
  }

  .section {
    padding: 2.4rem 1.2rem;
  }

  .hero {
    padding-top: 2.2rem;
  }

  .hero-inner {
    flex-direction: column-reverse;
    text-align: center;
    gap: 1.6rem;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .header-inner {
    justify-content: center;
    text-align: center;
  }

  .brand {
    align-items: center;
  }

  .site-nav {
    justify-content: center;
    gap: 0.8rem 1rem;
    font-size: 0.95rem;
  }

  h2 {
    margin-bottom: 0.5em;
  }

  /* 本棚をスマホでは1列3冊に */
  .bookshelf {
    grid-template-columns: repeat(3, minmax(75px, 90px));
    gap: 16px 8px;
  }

  .shelf-title {
    font-size: 0.8rem;
  }

  .mini-card-grid,
  .service-grid,
  .voice-grid,
  .monitor-tones {
    grid-template-columns: 1fr;
  }

  .service-card:first-child {
    grid-row: auto;
  }

  /* お仕事セクション */
  .work-note {
    margin-top: 1.4rem;
  }

  /* プロフィールを目立たせつつ余白は詰めすぎない */
  .profile-inner {
    padding: 2.2rem 1.4rem;
    border-radius: 22px;
  }

  /* 出版サポート事例ページ */
  .voice-detail-card {
    padding: 1.4rem 1.2rem;
  }

  /* Kindle出版 無料相談：挿絵はLINEボタンの下に */
  .publishing-layout {
    width: auto;
    grid-template-columns: 1fr;
    grid-template-areas:
      "lead"
      "label"
      "list"
      "ctas"
      "img";
  }

  .publishing-illustration {
    width: 200px;
  }
}