/*
Theme Name: あおば工務店
Theme URI: http://corporate-demo.local
Author: NAOKI
Description: 建設・工務店向けの自作コーポレートテーマ（練習用）。お知らせ・施工実績を管理画面から更新できる動的サイト。
Version: 1.0.0
Text Domain: aoba-koumuten
*/

/* ===== カラー・基本設定（変数） ===== */
:root {
  --green: #2e7d32;
  --green-dark: #1b5e20;
  --green-light: #e8f3e9;
  --beige: #f5f1e8;
  --text: #2b2b2b;
  --muted: #6b6b6b;
  --line: #e3e3df;
  --white: #ffffff;
  --max: 1080px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Noto Sans JP", system-ui, sans-serif;
  color: var(--text);
  line-height: 1.8;
  background: var(--white);
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--green-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* ===== ボタン ===== */
.btn {
  display: inline-block;
  background: var(--green);
  color: #fff;
  padding: 14px 28px;
  border-radius: 6px;
  font-weight: 700;
  transition: background .2s;
}
.btn:hover { background: var(--green-dark); text-decoration: none; color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--green-dark);
  border: 2px solid var(--green);
}
.btn-outline:hover { background: var(--green); color: #fff; }

/* ===== ヘッダー ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(4px);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.site-logo { font-size: 1.35rem; font-weight: 700; color: var(--green-dark); }
.site-logo small { display: block; font-size: .68rem; color: var(--muted); font-weight: 400; letter-spacing: .15em; }

.nav ul { list-style: none; display: flex; gap: 28px; margin: 0; padding: 0; }
.nav a { color: var(--text); font-weight: 500; }
.nav a:hover { color: var(--green); text-decoration: none; }

.menu-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 40px; height: 40px; padding: 8px;
}
.menu-toggle span { display: block; height: 2px; background: var(--text); margin: 6px 0; transition: .3s; }
.menu-toggle.is-open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-toggle.is-open span:nth-child(2) { opacity: 0; }
.menu-toggle.is-open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== ヒーロー ===== */
.hero {
  background: linear-gradient(120deg, var(--green-dark), var(--green));
  color: #fff;
  padding: 96px 0;
  text-align: center;
}
.hero h1 { font-size: 2.4rem; margin: 0 0 16px; line-height: 1.5; }
.hero p { font-size: 1.1rem; opacity: .95; margin: 0 0 32px; }
.hero .btn { background: #fff; color: var(--green-dark); }
.hero .btn:hover { background: var(--beige); }

/* ===== セクション共通 ===== */
.section { padding: 72px 0; }
.section.alt { background: var(--beige); }
.section-head { text-align: center; margin-bottom: 48px; }
.section-head h2 { font-size: 1.9rem; margin: 0 0 8px; color: var(--green-dark); }
.section-head .en { display: block; color: var(--green); font-size: .8rem; letter-spacing: .2em; font-weight: 700; }

/* ===== サービスカード ===== */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 32px 24px; text-align: center;
}
.card .icon { font-size: 2.4rem; margin-bottom: 12px; }
.card h3 { margin: 0 0 10px; color: var(--green-dark); }
.card p { color: var(--muted); margin: 0; font-size: .95rem; }

/* ===== 施工実績グリッド ===== */
.works-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.work-item { background: #fff; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.work-thumb { aspect-ratio: 4 / 3; background: var(--green-light); display: flex; align-items: center; justify-content: center; color: var(--green); font-size: 2rem; }
.work-thumb img { width: 100%; height: 100%; object-fit: cover; }
.work-body { padding: 16px 18px; }
.work-body h3 { margin: 0 0 6px; font-size: 1.05rem; }
.work-body p { margin: 0; color: var(--muted); font-size: .9rem; }

/* ===== お知らせ一覧 ===== */
.news-list { list-style: none; margin: 0 auto; padding: 0; max-width: 760px; }
.news-list li { border-bottom: 1px solid var(--line); }
.news-list a { display: flex; gap: 20px; padding: 18px 4px; color: var(--text); align-items: baseline; }
.news-list a:hover { text-decoration: none; color: var(--green-dark); }
.news-date { color: var(--muted); font-size: .85rem; white-space: nowrap; min-width: 96px; }
.news-title { flex: 1; }

/* ===== 中央寄せの「もっと見る」 ===== */
.more { text-align: center; margin-top: 40px; }

/* ===== CTA ===== */
.cta { background: var(--green-dark); color: #fff; text-align: center; padding: 64px 0; }
.cta h2 { font-size: 1.8rem; margin: 0 0 12px; }
.cta p { margin: 0 0 28px; opacity: .9; }
.cta .btn { background: #fff; color: var(--green-dark); }

/* ===== 記事・固定ページ本文 ===== */
.page-head { background: var(--green-light); padding: 56px 0; text-align: center; }
.page-head h1 { margin: 0; color: var(--green-dark); font-size: 2rem; }
.entry { max-width: 760px; margin: 0 auto; padding: 56px 0; }
.entry .meta { color: var(--muted); font-size: .9rem; margin-bottom: 20px; }
.entry h2 { color: var(--green-dark); border-left: 4px solid var(--green); padding-left: 12px; }
.entry img { border-radius: 8px; margin: 16px 0; }
.back-link { display: inline-block; margin-top: 40px; }

/* ===== フッター ===== */
.site-footer { background: #222; color: #cfcfcf; padding: 48px 0 24px; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 24px; }
.footer-brand { font-size: 1.2rem; color: #fff; font-weight: 700; }
.footer-info { font-size: .9rem; line-height: 1.9; }
.footer-copy { text-align: center; margin-top: 32px; font-size: .8rem; color: #999; }

/* ===== レスポンシブ（スマホ） ===== */
@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .nav {
    position: absolute; top: 72px; left: 0; right: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height .3s;
  }
  .nav.is-open { max-height: 400px; }
  .nav ul { flex-direction: column; gap: 0; }
  .nav li { border-top: 1px solid var(--line); }
  .nav a { display: block; padding: 16px 20px; }
  .cards, .works-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.8rem; }
  .hero { padding: 64px 0; }
  .news-list a { flex-direction: column; gap: 2px; }
}