/* ============================================
   有限会社ウイング - メインスタイルシート
   ============================================ */

/* --- Google Fonts & 変数定義 --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700;900&family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* カラーパレット */
  --color-navy:       #0f1f3d;
  --color-navy-mid:   #1a2f52;
  --color-charcoal:   #2c3444;
  --color-steel:      #3a5278;
  --color-blue:       #2563a8;
  --color-blue-light: #3b7dd8;
  --color-accent:     #1e6fa8;
  --color-green:      #1d5c47;
  --color-white:      #ffffff;
  --color-offwhite:   #f5f6f8;
  --color-lightgray:  #e8eaee;
  --color-gray:       #9aa0ad;
  --color-darkgray:   #4a5568;
  --color-text:       #1a1e2e;
  --color-text-light: #5a6275;

  /* タイポグラフィ */
  --font-ja: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', 'Meiryo', sans-serif;
  --font-en: 'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* スペーシング */
  --section-padding: 100px 0;
  --section-padding-sm: 60px 0;
  --container-max: 1200px;
  --container-pad: 0 40px;

  /* シャドウ */
  --shadow-sm:  0 2px 8px rgba(0,0,0,.06);
  --shadow-md:  0 4px 20px rgba(0,0,0,.10);
  --shadow-lg:  0 8px 40px rgba(0,0,0,.14);

  /* ボーダー */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 6px;

  /* トランジション */
  --transition: .3s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-ja);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a  { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }

/* --- コンテナ --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--container-pad);
}

/* ============================================
   ヘッダー / グローバルナビ
   ============================================ */
#site-header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 31, 61, .96);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: background var(--transition), box-shadow var(--transition);
}
#site-header.scrolled {
  background: rgba(10, 20, 45, .98);
  box-shadow: 0 2px 20px rgba(0,0,0,.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px;
}

/* ロゴ */
.site-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}
.site-logo .logo-en {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 800;
  letter-spacing: .12em;
  color: var(--color-white);
}
.site-logo .logo-ja {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: .14em;
  color: rgba(255,255,255,.6);
}

/* グローバルナビ */
.gnav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.gnav-list {
  display: flex;
  align-items: center;
  gap: 2px;
}
.gnav-list a {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .08em;
  color: rgba(255,255,255,.82);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.gnav-list a:hover,
.gnav-list a.active {
  color: var(--color-white);
  background: rgba(255,255,255,.08);
}

/* ヘッダーCTA */
.header-cta {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-tel {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.2;
}
.header-tel .tel-label {
  font-size: 9.5px;
  letter-spacing: .1em;
  color: rgba(255,255,255,.55);
}
.header-tel .tel-number {
  font-family: var(--font-en);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--color-white);
}
.header-tel .tel-number i {
  font-size: 14px;
  margin-right: 4px;
  color: var(--color-blue-light);
}

.btn-contact-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-blue);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,.15);
  transition: background var(--transition);
}
.btn-contact-header:hover {
  background: var(--color-blue-light);
}

/* ハンバーガーボタン */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* スマホメニュー */
.mobile-nav {
  display: none;
  position: fixed;
  top: 72px; left: 0;
  width: 100%;
  height: calc(100vh - 72px);
  background: rgba(10, 20, 45, .98);
  z-index: 999;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .35s ease;
}
.mobile-nav.open { transform: translateX(0); }
.mobile-nav-inner {
  padding: 32px 28px;
}
.mobile-nav-list li { border-bottom: 1px solid rgba(255,255,255,.07); }
.mobile-nav-list a {
  display: block;
  padding: 16px 4px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,.88);
  letter-spacing: .06em;
}
.mobile-nav-cta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 32px;
}
.mobile-nav-cta a {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
}
.mobile-cta-tel {
  background: var(--color-charcoal);
  color: var(--color-white);
  border: 1px solid rgba(255,255,255,.15);
}
.mobile-cta-contact {
  background: var(--color-blue);
  color: var(--color-white);
}

/* ============================================
   フッター
   ============================================ */
#site-footer {
  background: var(--color-navy);
  color: rgba(255,255,255,.75);
  padding: 60px 0 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 60px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px 50px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand .logo-en {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: .12em;
  color: var(--color-white);
}
.footer-brand .logo-ja {
  font-size: 11px;
  letter-spacing: .14em;
  color: rgba(255,255,255,.5);
  margin-bottom: 20px;
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.9;
  color: rgba(255,255,255,.6);
}
.footer-brand address {
  margin-top: 16px;
  font-style: normal;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  line-height: 1.8;
}
.footer-tel-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-white) !important;
  margin-top: 10px;
}
.footer-tel-link i { color: var(--color-blue-light); font-size: 16px; }

.footer-nav h4 {
  font-size: 11px;
  font-family: var(--font-en);
  letter-spacing: .16em;
  color: rgba(255,255,255,.4);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-nav ul li { margin-bottom: 10px; }
.footer-nav ul a {
  font-size: 13px;
  color: rgba(255,255,255,.65);
  transition: color var(--transition);
}
.footer-nav ul a::before {
  content: '— ';
  font-size: 10px;
  color: var(--color-blue-light);
  margin-right: 4px;
}
.footer-nav ul a:hover { color: var(--color-white); }

.footer-bottom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 20px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  color: rgba(255,255,255,.35);
}
.footer-bottom a { color: rgba(255,255,255,.45); }
.footer-bottom a:hover { color: rgba(255,255,255,.7); }

/* ============================================
   共通セクション
   ============================================ */

/* ページヘッダー（各下層ページ） */
.page-hero {
  position: relative;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 72px;
  overflow: hidden;
  background: var(--color-navy);
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(15,31,61,.85) 0%, rgba(26,47,82,.7) 100%),
    url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1600&q=80') center/cover no-repeat;
  background-blend-mode: multiply;
}
.page-hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-blue-light));
}
.page-hero-content {
  position: relative;
  text-align: center;
}
.page-hero-en {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .3em;
  color: var(--color-blue-light);
  display: block;
  margin-bottom: 12px;
}
.page-hero h1 {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: .06em;
}

/* セクションラベル */
.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.section-label-en {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .28em;
  color: var(--color-blue);
}
.section-label::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-blue);
  flex-shrink: 0;
}

/* セクションタイトル */
.section-title {
  font-size: clamp(22px, 3.5vw, 34px);
  font-weight: 700;
  color: var(--color-navy);
  letter-spacing: .03em;
  line-height: 1.45;
  margin-bottom: 16px;
}
.section-title.white { color: var(--color-white); }
.section-title.center { text-align: center; }

.section-lead {
  font-size: 15px;
  line-height: 2;
  color: var(--color-text-light);
  max-width: 680px;
}
.section-lead.center {
  text-align: center;
  margin: 0 auto;
}
.section-lead.white { color: rgba(255,255,255,.75); }

/* セクション区切り線 */
.section-divider {
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-blue), var(--color-blue-light));
  margin: 16px 0 32px;
}
.section-divider.center { margin: 16px auto 32px; }

/* ============================================
   ボタン
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .06em;
  padding: 13px 28px;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
}
.btn-primary:hover {
  background: var(--color-blue-light);
  border-color: var(--color-blue-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(37,99,168,.3);
}
.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: var(--color-white);
}
.btn-outline-dark {
  background: transparent;
  color: var(--color-blue);
  border-color: var(--color-blue);
}
.btn-outline-dark:hover {
  background: var(--color-blue);
  color: var(--color-white);
}
.btn-sm {
  font-size: 12.5px;
  padding: 9px 20px;
}

/* ============================================
   カード共通
   ============================================ */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-lightgray);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.card-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.card-body { padding: 24px; }
.card-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .15em;
  color: var(--color-blue);
  background: rgba(37,99,168,.08);
  padding: 3px 10px;
  border-radius: 2px;
  margin-bottom: 10px;
}
.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 10px;
  line-height: 1.5;
}
.card-text {
  font-size: 13.5px;
  color: var(--color-text-light);
  line-height: 1.85;
}

/* ============================================
   フェードインアニメーション
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: .1s; }
.fade-in-delay-2 { transition-delay: .2s; }
.fade-in-delay-3 { transition-delay: .3s; }
.fade-in-delay-4 { transition-delay: .4s; }
.fade-in-delay-5 { transition-delay: .5s; }

/* ============================================
   CTA セクション共通
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-mid) 60%, var(--color-steel) 100%);
  padding: 90px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 80% 50%, rgba(37,99,168,.18) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section .section-label { justify-content: center; }
.cta-section .section-label-en { color: rgba(255,255,255,.5); }
.cta-section .section-label::before { background: rgba(255,255,255,.3); }
.cta-section h2 {
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: .04em;
  margin-bottom: 16px;
  line-height: 1.55;
}
.cta-section p {
  font-size: 15px;
  color: rgba(255,255,255,.7);
  margin-bottom: 40px;
}
.cta-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.btn-cta-tel {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,.08);
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,.3);
  padding: 14px 30px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .06em;
  transition: all var(--transition);
}
.btn-cta-tel:hover {
  background: rgba(255,255,255,.14);
  border-color: rgba(255,255,255,.6);
}
.btn-cta-tel .tel-num {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .04em;
}

/* ============================================
   グリッドユーティリティ
   ============================================ */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ============================================
   テーブル
   ============================================ */
.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.info-table th,
.info-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-lightgray);
  text-align: left;
  vertical-align: top;
}
.info-table th {
  width: 200px;
  background: var(--color-offwhite);
  font-weight: 600;
  color: var(--color-navy);
  font-size: 13.5px;
}
.info-table td { color: var(--color-text); }

/* ============================================
   フォーム
   ============================================ */
.form-group { margin-bottom: 24px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-navy);
  margin-bottom: 8px;
}
.form-required {
  display: inline-block;
  font-size: 10px;
  background: var(--color-blue);
  color: var(--color-white);
  padding: 1px 6px;
  border-radius: 2px;
  margin-left: 6px;
  vertical-align: middle;
}
.form-optional {
  display: inline-block;
  font-size: 10px;
  background: var(--color-lightgray);
  color: var(--color-gray);
  padding: 1px 6px;
  border-radius: 2px;
  margin-left: 6px;
  vertical-align: middle;
}
.form-control {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid #d0d5de;
  border-radius: var(--radius-md);
  font-family: var(--font-ja);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(37,99,168,.12);
}
textarea.form-control { resize: vertical; min-height: 140px; }
select.form-control { cursor: pointer; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--color-text-light);
  cursor: pointer;
}
.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-blue);
  flex-shrink: 0;
}

/* ============================================
   レスポンシブ
   ============================================ */
@media (max-width: 1024px) {
  .header-inner { padding: 0 24px; }
  .gnav-list { gap: 0; }
  .gnav-list a { font-size: 11.5px; padding: 5px 8px; }
  .header-tel { display: none; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 40px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
    --container-pad: 0 20px;
  }

  .gnav       { display: none; }
  .hamburger  { display: flex; }
  .mobile-nav { display: block; }
  .btn-contact-header { display: none; }

  .header-inner { height: 64px; padding: 0 20px; }
  .mobile-nav { top: 64px; height: calc(100vh - 64px); }

  .footer-inner { grid-template-columns: 1fr; gap: 36px; padding: 0 20px 40px; }
  .footer-bottom { padding: 16px 20px; flex-direction: column; gap: 8px; text-align: center; }

  .grid-2 { grid-template-columns: 1fr; gap: 20px; }
  .grid-3 { grid-template-columns: 1fr; gap: 20px; }
  .grid-4 { grid-template-columns: 1fr; gap: 16px; }

  .page-hero { height: 240px; }

  .cta-buttons { flex-direction: column; }
  .btn-cta-tel, .btn-primary, .btn-outline { width: 100%; max-width: 320px; justify-content: center; }

  .info-table th { width: 120px; }
}

@media (max-width: 480px) {
  .header-inner { padding: 0 16px; }
  .container { padding: 0 16px; }
}