/* ============================================================
   NextCatalyst合同会社 コーポレートサイト
   style.css
   ============================================================ */

/* ---------- リセット・基本設定 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #1a2a4a;
  --color-primary-dark: #111d35;
  --color-primary-light: #243a6a;
  --color-accent: #FFE930;
  --color-accent-dark: #d4bf00;
  --color-accent-light: #FFD000;
  --color-accent-text: #1a2a4a; /* 黄色背景上のテキスト色（ネイビー） */
  --color-white: #ffffff;
  --color-bg: #f8f9fb;
  --color-bg-alt: #eef1f6;
  --color-text: #2d3748;
  --color-text-sub: #5a6a7e;
  --color-border: #d1d9e6;
  --color-success: #27ae60;
  --color-error: #e53e3e;

  --font-base: 'Noto Sans JP', sans-serif;
  --font-size-base: 16px;
  --line-height-base: 1.8;

  --max-width: 1100px;
  --section-padding: 80px 20px;
  --radius: 8px;
  --shadow: 0 4px 20px rgba(26, 42, 74, 0.08);
  --shadow-hover: 0 8px 32px rgba(26, 42, 74, 0.14);
  --transition: 0.25s ease;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  line-height: var(--line-height-base);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-light);
}

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

ul, ol {
  list-style: none;
}

/* ---------- ユーティリティ ---------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: var(--section-padding);
}

.section--alt {
  background: var(--color-bg);
}

.section--dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-accent);
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  margin-bottom: 16px;
}

.section--dark .section-title {
  color: var(--color-white);
}

.section-lead {
  font-size: 1.05rem;
  color: var(--color-text-sub);
  max-width: 100%;
  margin-bottom: 48px;
}

.section--dark .section-lead {
  color: rgba(255,255,255,0.75);
}

.text-center {
  text-align: center;
}

.text-center .section-lead {
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 700;
  font-family: var(--font-base);
  letter-spacing: 0.03em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-text);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  color: var(--color-accent-text);
  box-shadow: 0 4px 16px rgba(255,233,48,0.5);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn--outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline-dark:hover {
  background: var(--color-accent);
  color: var(--color-accent-text);
  border-color: var(--color-accent);
}

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 1px 8px rgba(26,42,74,0.06);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.site-logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: none;
}

.site-logo__img {
  height: 40px;
  width: 40px;
  object-fit: contain;
  border-radius: 6px;
  flex-shrink: 0;
}

.site-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-logo__en {
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}

.site-logo__ja {
  font-size: 0.65rem;
  color: var(--color-text-sub);
  font-weight: 400;
  letter-spacing: 0.08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav__list {
  display: flex;
  gap: 28px;
}

.site-nav__link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text);
  letter-spacing: 0.02em;
  position: relative;
  padding-bottom: 2px;
}

.site-nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--color-primary);
}

.site-nav__link:hover::after,
.site-nav__link.is-active::after {
  width: 100%;
}

.site-nav__cta {
  font-size: 0.85rem;
  padding: 10px 20px;
}

/* ハンバーガー */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-menu {
  display: none;
}

/* ---------- フッター ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
  padding: 48px 20px 24px;
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: start;
}

.site-footer__brand {}

.site-footer__logo {
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
  display: block;
}

.site-footer__desc {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}

.site-footer__nav {
  display: flex;
  gap: 48px;
}

.site-footer__nav-group {}

.site-footer__nav-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 12px;
}

.site-footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.site-footer__nav-list a {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
  padding: 6px 0;
  display: inline-block;
}

.site-footer__nav-list a:hover {
  color: var(--color-white);
}

.site-footer__bottom {
  max-width: var(--max-width);
  margin: 32px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer__copy {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
}

.site-footer__legal {
  display: flex;
  gap: 20px;
}

.site-footer__legal a {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
  padding: 6px 8px;
}

.site-footer__legal a:hover {
  color: rgba(255,255,255,0.8);
}

/* ---------- ヒーローセクション ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 60%, #1e4a8a 100%);
  color: var(--color-white);
  padding: 100px 20px 90px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -80px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: rgba(255,255,255,0.03);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -160px;
  left: -100px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: rgba(255,255,255,0.04);
  pointer-events: none;
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero__label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-accent);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 24px;
  border: 1px solid var(--color-accent-dark);
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero__title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: rgba(255,255,255,0.78);
  max-width: 560px;
  line-height: 1.85;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* ---------- サービスカード（トップ）---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  background: var(--color-accent);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
}

.service-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.service-card__body {
  font-size: 0.9rem;
  color: var(--color-text-sub);
  line-height: 1.8;
  flex-grow: 1;
  margin-bottom: 20px;
}

/* ---------- 特徴ブロック ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 48px;
}

.feature-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.feature-item__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  background: rgba(255, 233, 48, 0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.feature-item__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.feature-item__body {
  font-size: 0.87rem;
  color: var(--color-text-sub);
  line-height: 1.75;
}

/* ---------- 代表紹介（トップ） ---------- */
.about-preview {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: end;
}

.about-preview__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.about-preview__name {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.about-preview__role {
  font-size: 0.88rem;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.about-preview__text {
  font-size: 0.93rem;
  color: var(--color-text-sub);
  line-height: 1.85;
  margin-bottom: 28px;
}

/* ---------- CTAバナー ---------- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: 72px 20px;
  text-align: center;
}

.cta-banner__title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.cta-banner__sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.72);
  margin-bottom: 36px;
}

.cta-banner__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- ページヘッダー（下層ページ共通） ---------- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  padding: 64px 20px 56px;
  color: var(--color-white);
}

.page-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.page-header__breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 20px;
}

.page-header__breadcrumb a {
  color: rgba(255,255,255,0.55);
  transition: color var(--transition);
}

.page-header__breadcrumb a:hover {
  color: var(--color-white);
}

.page-header__breadcrumb span {
  opacity: 0.5;
}

.page-header__title {
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 12px;
}

.page-header__sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.72);
}

/* ---------- ミッション（company.html） ---------- */
.mission-wrap {
  max-width: 920px;
  margin: 0 auto;
}

.mission-statement {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px 48px;
  box-shadow: var(--shadow);
  text-align: center;
  margin-bottom: 32px;
}

.mission-statement__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.5;
  margin-bottom: 28px;
}

.mission-statement__body {
  font-size: 0.95rem;
  color: var(--color-text-sub);
  line-height: 1.9;
}

.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.mission-item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
}

.mission-item__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.mission-item__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.mission-item__body {
  font-size: 0.82rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

/* ---------- 会社概要テーブル ---------- */
.company-table-wrap {
  overflow-x: auto;
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.93rem;
}

.company-table th,
.company-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
  line-height: 1.7;
}

.company-table th {
  background: var(--color-bg);
  color: var(--color-primary);
  font-weight: 600;
  white-space: nowrap;
  width: 200px;
}

.company-table td {
  color: var(--color-text);
}

.company-table tr:last-child th,
.company-table tr:last-child td {
  border-bottom: none;
}

.company-note {
  font-size: 0.82rem;
  color: var(--color-text-sub);
  margin-top: 16px;
  padding-left: 1em;
  position: relative;
}

.company-note::before {
  content: '※';
  position: absolute;
  left: 0;
}

/* ---------- サービス詳細 ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 64px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--color-border);
}

.service-detail:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.service-detail--reverse {
  direction: rtl;
}

.service-detail--reverse > * {
  direction: ltr;
}

.service-detail__visual {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 60%, #1a3a6a 100%);
  border-radius: 16px;
  aspect-ratio: 4 / 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--color-accent);
}

.service-detail__visual-icon {
  font-size: 4rem;
}

.service-detail__visual-label {
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.8;
}

.service-detail__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-accent);
  padding: 4px 16px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.service-detail__title {
  font-size: 1.55rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  line-height: 1.35;
}

.service-detail__body {
  font-size: 0.93rem;
  color: var(--color-text-sub);
  line-height: 1.85;
  margin-bottom: 24px;
}

.service-detail__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.service-detail__list-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.88rem;
  color: var(--color-text);
}

.service-detail__list-item::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ---------- 代表プロフィール ---------- */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-accent-dark);
}

.timeline-item__year {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.timeline-item__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.timeline-item__body {
  font-size: 0.88rem;
  color: var(--color-text-sub);
  line-height: 1.75;
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.cert-item__icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  width: 48px;
  text-align: center;
}

.cert-item__badge {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  object-fit: contain;
}

.cert-item__text {
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.5;
}

.message-card {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: 16px;
  padding: 48px 48px;
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.message-card::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 32px;
  font-size: 10rem;
  color: rgba(255,255,255,0.05);
  font-family: Georgia, serif;
  line-height: 1;
}

.message-card__body {
  font-size: 1rem;
  line-height: 2;
  color: rgba(255,255,255,0.9);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.message-card__sig {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  position: relative;
  z-index: 1;
}

.message-card__sig strong {
  color: var(--color-white);
  font-size: 1.05rem;
}

.skills-section {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}

.skills-section__title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
}

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.skill-tag {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: 100px;
  transition: background var(--transition), color var(--transition);
}

.skill-tag:hover {
  background: var(--color-accent);
  color: var(--color-accent-text);
  border-color: var(--color-accent-dark);
}

/* ---------- お問い合わせフォーム ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}

.contact-form-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-required {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--color-error);
  background: rgba(229,62,62,0.08);
  padding: 2px 6px;
  border-radius: 4px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.93rem;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent-dark);
  box-shadow: 0 0 0 3px rgba(255,233,48,0.25);
}

.form-input.is-error,
.form-textarea.is-error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(229,62,62,0.1);
}

.form-textarea {
  height: 180px;
  resize: vertical;
}

.form-error-msg {
  display: none;
  font-size: 0.85rem;
  color: var(--color-error);
  margin-top: 6px;
}

.form-error-msg.is-visible {
  display: block;
}

.form-submit {
  display: flex;
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 1rem;
}

.form-note {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin-top: 12px;
  text-align: center;
}

.form-note a {
  color: var(--color-primary);
}

/* アラート */
.alert {
  padding: 16px 20px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1.6;
}

.alert--success {
  background: rgba(39,174,96,0.08);
  border: 1px solid rgba(39,174,96,0.25);
  color: #1d6d3e;
}

.alert--error {
  background: rgba(229,62,62,0.07);
  border: 1px solid rgba(229,62,62,0.2);
  color: #9b1c1c;
}

/* サイドバー */
.contact-sidebar {}

.contact-info-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 20px;
}

.contact-info-card__title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 16px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-item__label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-sub);
  letter-spacing: 0.06em;
}

.contact-info-item__value {
  font-size: 0.9rem;
  color: var(--color-text);
  font-weight: 500;
}

.contact-info-item__value a {
  color: var(--color-accent);
}

/* ---------- プライバシーポリシー ---------- */
.privacy-content {
  max-width: 780px;
  margin: 0 auto;
}

.privacy-section {
  margin-bottom: 48px;
}

.privacy-section__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

.privacy-section__body {
  font-size: 0.93rem;
  color: var(--color-text);
  line-height: 1.9;
}

.privacy-section__body p {
  margin-bottom: 12px;
}

.privacy-section__body p:last-child {
  margin-bottom: 0;
}

.privacy-list {
  margin: 12px 0 12px 0;
  padding-left: 1.4em;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.privacy-list li {
  list-style: disc;
  font-size: 0.93rem;
  color: var(--color-text);
  line-height: 1.7;
}

.privacy-date {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  text-align: right;
  margin-bottom: 40px;
}

.about-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}

.sticky-aside {
  position: sticky;
  top: 88px;
}

/* ---------- レスポンシブ ---------- */
@media (max-width: 960px) {
  .site-nav__list,
  .site-nav__cta {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .mobile-menu {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 68px 0 0 0;
    background: var(--color-white);
    z-index: 99;
    padding: 32px 20px;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition);
    overflow-y: auto;
    border-top: 1px solid var(--color-border);
  }

  .mobile-menu.is-open {
    transform: translateX(0);
  }

  .mobile-menu__link {
    display: block;
    padding: 16px 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    transition: color var(--transition);
  }

  .mobile-menu__link:hover {
    color: var(--color-primary-light);
  }

  .mobile-menu__cta {
    margin-top: 24px;
    width: 100%;
    justify-content: center;
  }

  .about-layout {
    display: flex;
    flex-direction: column;
  }

  .sticky-aside {
    position: static;
    order: -1;
    width: 100%;
  }

  .sidebar-cta {
    display: none;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 56px 20px;
  }

  .services-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .about-preview {
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: start;
  }

  .mission-grid {
    grid-template-columns: 1fr;
  }

  .service-detail {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .service-detail--reverse {
    direction: ltr;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-form-card {
    padding: 28px 20px;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
  }

  .site-footer__nav {
    flex-direction: column;
    gap: 24px;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  /* .about-layout / .sticky-aside は960pxで定義済み */

  .message-card {
    padding: 32px 24px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 72px 20px 64px;
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .cta-banner__actions {
    flex-direction: column;
    align-items: center;
  }

  .mission-statement {
    padding: 24px 20px;
  }

  .company-table th {
    width: 100px;
    font-size: 0.82rem;
  }

  .company-table th,
  .company-table td {
    padding: 12px 12px;
  }

  .company-table td {
    font-size: 0.85rem;
  }

  .certs-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- その他 ---------- */
/* デフォルト定義はメディアクエリより前（1323行以前）に移動済み */

.profile-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  text-align: center;
}

.profile-card__avatar {
  width: 80px;
  height: 80px;
  background: var(--color-accent);
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-primary);
}

.profile-card__name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.profile-card__role {
  font-size: 0.8rem;
  color: var(--color-text-sub);
  margin-bottom: 20px;
}

.profile-card__divider {
  height: 1px;
  background: var(--color-border);
  margin: 16px 0;
}

.profile-card__item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.82rem;
  color: var(--color-text-sub);
  padding: 6px 0;
}

.profile-card__item-val {
  font-weight: 600;
  color: var(--color-text);
  text-align: right;
  max-width: 60%;
}

.section-intro {
  font-size: 0.95rem;
  color: var(--color-text-sub);
  line-height: 1.85;
  margin-bottom: 36px;
}

/* ---------- プロフィールセクション区切り ---------- */
.profile-section {
  margin-bottom: 56px;
}

.profile-section__role {
  font-size: 0.88rem;
  color: var(--color-text-sub);
  margin-bottom: 24px;
}

/* ---------- 保有資格リスト（サイドバー） ---------- */
.cert-list-sidebar {
  font-size: 0.82rem;
  text-align: left;
  line-height: 1.7;
}

.cert-list-sidebar__title {
  font-weight: 600;
  color: var(--color-text-sub);
  margin-bottom: 8px;
}

.cert-list-sidebar__items {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cert-list-sidebar__item {
  padding-left: 12px;
  position: relative;
}

.cert-list-sidebar__item::before {
  content: '·';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* ---------- アバター画像（サイドバー） ---------- */
.profile-card__avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* ---------- サイドバーCTAボタン ---------- */
.sidebar-cta {
  margin-top: 16px;
}

.sidebar-cta .btn {
  width: 100%;
  justify-content: center;
}

/* ---------- サービスカードリンク ---------- */
.service-card__link {
  font-size: 0.85rem;
  padding: 10px 20px;
  display: flex;
  width: 100%;
  justify-content: center;
}

/* ---------- サービス一覧フッターリンク ---------- */
.services-footer {
  margin-top: 40px;
  text-align: center;
}

/* ---------- 事業内容リスト（会社概要テーブル） ---------- */
.company-table__list {
  padding-left: 1.2em;
  list-style: disc;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ---------- お問い合わせ セクションヘッダー ---------- */
.contact-section-header {
  margin-bottom: 48px;
}

/* ---------- プライバシー同意フォームグループ ---------- */
.form-group--checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.form-group--checkbox__input {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 3px;
  cursor: pointer;
  accent-color: var(--color-accent);
}

.form-group--checkbox__label {
  font-size: 0.87rem;
  color: var(--color-text-sub);
  cursor: pointer;
  line-height: 1.6;
}

/* ---------- お問い合わせサイドバー 相談リスト ---------- */
.inquiry-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.inquiry-list__item {
  font-size: 0.85rem;
  color: var(--color-text);
  display: flex;
  gap: 8px;
  align-items: flex-start;
}

.inquiry-list__check {
  color: var(--color-primary);
  flex-shrink: 0;
  font-weight: 700;
}

/* ---------- お問い合わせサイドバー 紺色カード ---------- */
.contact-info-card--dark {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.contact-info-card--dark__body {
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

/* ---------- アラートアイコン ---------- */
.alert__icon {
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ---------- 代表紹介（トップ）ボタン列 ---------- */
.about-preview__cta {
  flex-shrink: 0;
}

.about-preview__cta .btn {
  white-space: nowrap;
}

/* ---------- 資格カード サブテキスト ---------- */
.cert-item__sub {
  font-size: 0.78rem;
  color: var(--color-text-sub);
  font-weight: 400;
}

/* ---------- プライバシーポリシー イントロ ---------- */
.privacy-intro {
  font-size: 0.93rem;
  color: var(--color-text);
  line-height: 1.9;
  margin-bottom: 48px;
}

/* ---------- プライバシーポリシー 末尾署名 ---------- */
.privacy-sig {
  font-size: 0.85rem;
  color: var(--color-text-sub);
  text-align: right;
  margin-top: 48px;
}

/* ============================================================
   アニメーション
   ============================================================ */

/* ---------- ページフェードイン ---------- */
/* JS未読み込み時は opacity:1 のままにして、コンテンツが見えない事態を防ぐ */
body {
  opacity: 1;
  transition: opacity 0.3s ease;
}

body.js-loaded {
  animation: pageFadeIn 0.3s ease both;
}

@keyframes pageFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ---------- ヒーローセクション 段階的フェードイン ---------- */
/* js-loaded が body に付いた時だけ有効。JS無効時は全要素が即表示される */

.js-loaded .hero__label {
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 0s;
}

.js-loaded .hero__title {
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 0.12s;
}

.js-loaded .hero__sub {
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 0.24s;
}

.js-loaded .hero__actions {
  animation: heroFadeUp 0.6s ease both;
  animation-delay: 0.34s;
}

@keyframes heroFadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ---------- スクロールフェードイン ---------- */
/* data-animate 属性を持つ要素の初期状態（js-loaded 時のみ非表示） */
.js-loaded [data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease-out,
    transform 0.6s ease-out;
  will-change: opacity, transform;
}

/* IntersectionObserver が is-animated を付けたら表示 */
.js-loaded [data-animate].is-animated {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- デスクトップ用改行：モバイルでは無効化 ---------- */
@media (max-width: 768px) {
  br.br-desktop {
    display: none;
  }
}

/* prefers-reduced-motion: reduce の時はアニメーション無効 */
@media (prefers-reduced-motion: reduce) {
  body.js-loaded {
    animation: none;
  }

  .js-loaded .hero__label,
  .js-loaded .hero__title,
  .js-loaded .hero__sub,
  .js-loaded .hero__actions {
    animation: none;
  }

  .js-loaded [data-animate] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}