/* =========================================================
   ネイビー電設 共通スタイル
   構成: 1.変数 2.リセット 3.共通部品 4.ヘッダー 5.フッター
         6.トップ 7.下層ページ 8.フォーム 9.PC向け調整
   色や余白を変えたい時は「1.変数」だけ編集すればOKです
   ========================================================= */

/* 1. 変数 ------------------------------------------------ */
:root {
  --navy: #0b2545;
  --navy-light: #13315c;
  --accent: #f5b700;
  --text: #1f2937;
  --muted: #6b7280;
  --bg: #ffffff;
  --bg-soft: #f3f6fa;
  --border: #dbe3ee;
  --radius: 10px;
  --max-width: 1080px;
  --gap: 24px;
  --font: "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;
}

/* 2. リセット -------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.8; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy-light); }
h1, h2, h3 { line-height: 1.4; color: var(--navy); margin: 0 0 .6em; }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

/* 3. 共通部品 -------------------------------------------- */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 16px; }
.section { padding: 56px 0; }
.section--soft { background: var(--bg-soft); }
.section__title { text-align: center; font-size: 1.5rem; margin-bottom: 2rem; }
.section__title::after { content: ""; display: block; width: 48px; height: 4px; background: var(--accent); margin: 12px auto 0; border-radius: 2px; }
.grid { display: grid; gap: var(--gap); grid-template-columns: 1fr; }
.card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.card h3 { font-size: 1.1rem; }
.card--img { padding: 0; overflow: hidden; }
.card--img .card__body { padding: 20px; }
.tag { display: inline-block; font-size: .75rem; background: var(--bg-soft); color: var(--navy); padding: 2px 10px; border-radius: 99px; margin-bottom: 8px; }
.btn { display: inline-block; padding: 14px 32px; border-radius: 99px; background: var(--accent); color: var(--navy); font-weight: 700; text-decoration: none; border: 0; cursor: pointer; font-size: 1rem; font-family: inherit; }
.btn:hover { filter: brightness(.95); }
.btn--navy { background: var(--navy); color: #fff; }
.center { text-align: center; }
.skip-link { position: absolute; left: -999px; }
.skip-link:focus { left: 8px; top: 8px; background: #fff; padding: 8px; z-index: 100; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* 4. ヘッダー -------------------------------------------- */
.site-header { position: sticky; top: 0; z-index: 50; background: #fff; border-bottom: 1px solid var(--border); }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-weight: 700; font-size: 1.15rem; color: var(--navy); text-decoration: none; display: flex; align-items: center; gap: 8px; }
.logo svg { width: 28px; height: 28px; }
.nav-toggle { background: none; border: 0; padding: 8px; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 24px; height: 2px; background: var(--navy); position: relative; content: ""; }
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after { position: absolute; top: 7px; }
.global-nav { display: none; position: absolute; top: 64px; left: 0; right: 0; background: #fff; border-bottom: 1px solid var(--border); }
.global-nav.is-open { display: block; }
.global-nav a { display: block; padding: 14px 16px; color: var(--navy); text-decoration: none; border-top: 1px solid var(--border); font-weight: 600; }
.global-nav a[aria-current="page"] { color: var(--navy-light); background: var(--bg-soft); }

/* 5. フッター -------------------------------------------- */
.site-footer { background: var(--navy); color: #fff; padding: 40px 0 24px; font-size: .9rem; }
.site-footer a { color: #fff; }
.site-footer__nav { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 16px 0 24px; }
.copyright { font-size: .8rem; opacity: .7; margin: 0; }

/* 6. トップ ---------------------------------------------- */
.hero { background: linear-gradient(135deg, var(--navy), var(--navy-light)); color: #fff; padding: 64px 0; }
.hero .container { display: grid; gap: 32px; align-items: center; }
.hero h1 { color: #fff; font-size: 1.75rem; }
.hero p { opacity: .9; }
.hero__img { max-width: 420px; margin: 0 auto; }
.feature__num { color: var(--accent); font-weight: 700; font-size: 1.6rem; display: block; }
.cta { background: var(--navy); color: #fff; text-align: center; padding: 56px 0; }
.cta h2 { color: #fff; }

/* 7. 下層ページ ------------------------------------------ */
.page-title { background: var(--navy); color: #fff; padding: 40px 0; }
.page-title h1 { color: #fff; font-size: 1.6rem; margin: 0; }
.page-title p { margin: 8px 0 0; opacity: .85; }
.breadcrumb { font-size: .8rem; padding: 12px 0; color: var(--muted); }
.breadcrumb a { color: var(--muted); }
.info-table { width: 100%; border-collapse: collapse; }
.info-table th, .info-table td { padding: 14px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.info-table th { width: 30%; background: var(--bg-soft); color: var(--navy); white-space: nowrap; }
.timeline li { padding: 8px 0 8px 16px; border-left: 3px solid var(--accent); margin-left: 4px; }
.service-list li { display: flex; gap: 20px; align-items: flex-start; }

/* 8. フォーム -------------------------------------------- */
.form { max-width: 640px; margin: 0 auto; }
.form__row { margin-bottom: 20px; }
.form label, .form legend { display: block; font-weight: 700; margin-bottom: 6px; color: var(--navy); }
.required { background: #c0392b; color: #fff; font-size: .7rem; padding: 2px 6px; border-radius: 4px; margin-left: 6px; }
.form input[type="text"], .form input[type="tel"], .form input[type="email"], .form select, .form textarea {
  width: 100%; padding: 12px; font-size: 1rem; font-family: inherit; border: 1px solid var(--border); border-radius: 6px; background: #fff;
}
.form textarea { min-height: 160px; resize: vertical; }
.form__error { color: #c0392b; font-size: .85rem; margin: 4px 0 0; min-height: 1.2em; }
.form__notice { background: var(--bg-soft); border-radius: var(--radius); padding: 16px; font-size: .9rem; margin-bottom: 24px; }
.form__result { margin-top: 20px; padding: 16px; border-radius: var(--radius); background: #e8f5e9; display: none; }
.form__result.is-show { display: block; }

/* 9. PC向け調整 ------------------------------------------ */
@media (min-width: 768px) {
  .section { padding: 80px 0; }
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .hero .container { grid-template-columns: 1.2fr 1fr; }
  .hero h1 { font-size: 2.2rem; }
  .nav-toggle { display: none; }
  .global-nav { display: block; position: static; border: 0; }
  .global-nav ul { display: flex; gap: 4px; }
  .global-nav a { border: 0; padding: 8px 14px; border-radius: 6px; }
  .global-nav .nav-cta { background: var(--accent); }
}