/* ============================================================
   OMZ STYLE — main.css
   Next.js + shadcn/ui デザインを WordPress テーマとして再現
============================================================ */

/* ============================================================
   1. CSS 変数（デザイントークン）
============================================================ */
:root {
  /* カラー */
  --background:       #ffffff;
  --foreground:       #1a1a1a;
  --primary:          #2563eb;
  --primary-hover:    #1d4ed8;
  --primary-fg:       #ffffff;
  --card:             #ffffff;
  --muted:            #f0f7ff;
  --muted-foreground: #737373;
  --border:           #e5e5e5;
  --ring:             #93c5fd;

  /* タイポグラフィ */
  --font-sans: 'Noto Sans JP', system-ui, -apple-system, sans-serif;

  /* 角丸 */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 10px;
  --radius-xl: 14px;

  /* シャドウ */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);

  /* スペーシング */
  --section-py:    80px;
  --section-py-sm: 48px;
  --container-max: 1200px;
  --container-px:  24px;

  /* ヘッダー高さ */
  --header-h: 68px;
}

/* ============================================================
   2. リセット・ベース
============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-h);
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

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

ul, ol { list-style: none; }

/* ============================================================
   3. ユーティリティ
============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.pc-only { display: none; }

@media (min-width: 768px) {
  .pc-only { display: inline; }
}

/* ============================================================
   4. ボタン
============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
}

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

/* サイズ */
.btn--sm  { font-size: 0.875rem; padding: 6px 16px; }
.btn--md  { font-size: 0.9375rem; padding: 10px 24px; }
.btn--lg  { font-size: 1rem; padding: 14px 32px; border-radius: var(--radius-lg); }

/* バリアント */
.btn--primary {
  background: var(--primary);
  color: var(--primary-fg);
  border-color: var(--primary);
}
.btn--primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: var(--primary-fg);
}

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

/* ============================================================
   5. セクション共通
============================================================ */
.section {
  padding-block: var(--section-py);
  background: var(--background);
}

.section--muted {
  background: var(--muted);
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--foreground);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1rem;
  color: var(--muted-foreground);
  line-height: 1.8;
}

.no-content {
  text-align: center;
  color: var(--muted-foreground);
  padding: 40px 0;
}

@media (max-width: 767px) {
  .section { padding-block: var(--section-py-sm); }
  .section-header { margin-bottom: 36px; }
}

/* ============================================================
   6. ヘッダー
============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.site-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-logo img { height: 32px; width: auto; }

/* PC ナビ */
.site-nav { display: none; }

@media (min-width: 768px) {
  .site-nav { display: flex; align-items: center; }
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--foreground);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  transition: background 0.15s, color 0.15s;
}

.nav-link:hover {
  background: var(--muted);
  color: var(--primary);
}

.nav-link--cta {
  background: var(--primary);
  color: var(--primary-fg) !important;
  padding: 8px 20px;
  font-weight: 600;
}

.nav-link--cta:hover {
  background: var(--primary-hover);
  color: var(--primary-fg) !important;
}

/* ハンバーガー */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 6px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background 0.15s;
}

.hamburger:hover { background: var(--muted); }

.hamburger__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--foreground);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ハンバーガーアクティブ状態 */
.hamburger.is-active .hamburger__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.hamburger.is-active .hamburger__bar:nth-child(2) {
  opacity: 0;
}
.hamburger.is-active .hamburger__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 768px) {
  .hamburger { display: none; }
}

/* モバイルメニュー */
.mobile-menu {
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  background: var(--background);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease;
}

.mobile-menu.is-open {
  max-height: 400px;
}

.mobile-nav-list {
  padding: 12px 0 20px;
}

.mobile-nav-link {
  display: block;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--foreground);
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}

.mobile-nav-link:hover {
  background: var(--muted);
  color: var(--primary);
}

.mobile-nav-link--cta {
  margin: 16px 24px 0;
  display: block;
  text-align: center;
  background: var(--primary);
  color: var(--primary-fg) !important;
  border-radius: var(--radius-md);
  border: none;
  padding: 14px 24px;
  font-weight: 600;
}

.mobile-nav-link--cta:hover {
  background: var(--primary-hover);
  color: var(--primary-fg) !important;
}

/* ============================================================
   7. ヒーロー
============================================================ */
.section-hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--header-h);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: 80px;
  max-width: 720px;
}

.hero-sub {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.1);
  padding: 4px 14px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--foreground);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--muted-foreground);
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
}

/* ============================================================
   8. 事業内容
============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 600px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
}

.service-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.service-card__icon {
  color: var(--primary);
  margin-bottom: 20px;
}

.service-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--foreground);
}

.service-card__desc {
  font-size: 0.9375rem;
  color: var(--muted-foreground);
  line-height: 1.8;
}

/* ============================================================
   9. 業務実績
============================================================ */
.works-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
}

@media (min-width: 600px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .works-grid { grid-template-columns: repeat(3, 1fr); }
}

.work-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.work-card__thumb {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  background: var(--muted);
}

.work-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.work-card:hover .work-card__img {
  transform: scale(1.04);
}

.work-card__body {
  padding: 20px 24px 24px;
}

.work-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--foreground);
}

.work-card__desc {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  line-height: 1.7;
}

/* ============================================================
   10. 会社概要
============================================================ */
.about-table-wrap {
  max-width: 760px;
  margin-inline: auto;
}

.about-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 1rem;
}

.about-table th,
.about-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.about-table th {
  width: 160px;
  font-weight: 600;
  color: var(--muted-foreground);
  white-space: nowrap;
  background: var(--background);
}

.about-table td {
  color: var(--foreground);
  background: var(--card);
}

@media (max-width: 520px) {
  .about-table th,
  .about-table td {
    display: block;
    width: 100%;
    padding: 12px 16px;
  }
  .about-table th {
    padding-bottom: 4px;
    border-bottom: none;
    font-size: 0.8125rem;
  }
}

/* ============================================================
   11. お問い合わせ
============================================================ */
.contact-form-wrap {
  max-width: 640px;
  margin-inline: auto;
}

/* WPForms スタイル上書き */
.wpforms-container .wpforms-form .wpforms-field-label {
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--foreground);
  margin-bottom: 6px;
}

.wpforms-container .wpforms-form input[type="text"],
.wpforms-container .wpforms-form input[type="email"],
.wpforms-container .wpforms-form select,
.wpforms-container .wpforms-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--foreground);
  background: var(--card);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.wpforms-container .wpforms-form input:focus,
.wpforms-container .wpforms-form select:focus,
.wpforms-container .wpforms-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.wpforms-container .wpforms-form textarea {
  min-height: 140px;
  resize: vertical;
}

.wpforms-container .wpforms-form .wpforms-submit {
  background: var(--primary) !important;
  color: var(--primary-fg) !important;
  border: none !important;
  padding: 14px 40px !important;
  font-size: 1rem !important;
  font-weight: 600 !important;
  border-radius: var(--radius-md) !important;
  cursor: pointer;
  transition: background 0.2s !important;
  font-family: var(--font-sans) !important;
}

.wpforms-container .wpforms-form .wpforms-submit:hover {
  background: var(--primary-hover) !important;
}

/* プレースホルダー（WPForms未インストール時） */
.contact-placeholder {
  background: var(--muted);
  border: 2px dashed var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  text-align: center;
  line-height: 1.8;
  color: var(--muted-foreground);
}

.contact-placeholder code {
  background: var(--border);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.875rem;
  color: var(--foreground);
}

.contact-placeholder .btn {
  margin-top: 24px;
}

/* ============================================================
   12. フッター
============================================================ */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding-top: 56px;
}

.footer-inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand { flex: 1; min-width: 200px; }

.footer-logo {
  filter: brightness(0) invert(1);
  opacity: 0.9;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: 0.9375rem;
  color: #cbd5e1;
}

.footer-nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
}

.footer-nav-list a {
  font-size: 0.9375rem;
  color: #94a3b8;
  transition: color 0.2s;
}

.footer-nav-list a:hover { color: #ffffff; }

.footer-bottom {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: 20px var(--container-px);
  text-align: center;
}

.copyright {
  font-size: 0.875rem;
  color: #64748b;
}

/* ============================================================
   13. メインコンテンツのトップマージン（ヘッダー固定分）
============================================================ */
.site-main {
  padding-top: var(--header-h);
}

/* ヒーローセクションはpadding-topで対処済みなのでsection-heroには適用しない */
.section-hero {
  padding-top: 0;
  margin-top: calc(-1 * var(--header-h));
}