/* ===============================
   三陽建設 — Common Styles
   Palette: Deep Navy × Corporate Blue × Ivory
   =============================== */

:root{
  --navy:#0a2540;         /* メインの濃紺 */
  --blue:#1e5fa8;         /* コーポレートブルー */
  --blue-2:#2a7dc9;       /* ハイライトブルー */
  --blue-soft:#e7f0fa;    /* 薄い青（背景アクセント）*/
  --ivory:#f6f4ef;        /* 温かみのある紙色 */
  --paper:#ffffff;
  --ink:#0f1a2b;
  --mute:#6b7280;
  --line:#e5e7eb;
  --line-soft:#eef1f5;
  --accent:#c9a35b;       /* 補助:控えめゴールド（見出しの装飾用）*/
  --max: 1200px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family: "Noto Sans JP","Zen Kaku Gothic New",system-ui,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.7;
  font-feature-settings:"palt";
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}

/* ---- Typography ---- */
.serif{font-family:"Noto Serif JP",serif}
.mono{font-family:"JetBrains Mono",monospace}
.eyebrow{
  font-family:"JetBrains Mono",monospace;
  font-size:11px;
  letter-spacing:.28em;
  color:var(--blue);
  text-transform:uppercase;
  display:inline-flex;align-items:center;gap:12px;
}
.eyebrow::before{content:"";width:28px;height:1px;background:var(--blue)}

h1,h2,h3,h4{font-family:"Noto Serif JP",serif;font-weight:900;line-height:1.35;letter-spacing:.02em;color:var(--navy)}

.section-title{
  font-size:36px;line-height:1.4;margin:12px 0 20px;
}
.section-title small{
  display:block;font-family:"JetBrains Mono",monospace;
  font-size:11px;letter-spacing:.3em;color:var(--blue);
  font-weight:400;margin-bottom:8px;text-transform:uppercase;
}
.section-lead{color:#374151;font-size:15px;max-width:640px;line-height:2}

/* ---- Header ---- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line-soft);
  transition:background .2s ease, border-color .2s ease;
}
/* ロゴを使うため、on-hero でも白背景を維持（ヒーロー写真の上に白い帯が乗る形） */
.site-header.on-hero{
  background:rgba(255,255,255,.75);
  backdrop-filter:blur(14px);
  border-bottom-color:transparent;
}

/* ロゴ画像（ヘッダー）: SVG（ベクター、どんなサイズでも鮮明） */
.brand-logo{
  display:block !important;
  height:36px !important;
  width:auto !important;
  object-fit:contain;
}

.nav-inner{
  max-width:var(--max);margin:0 auto;padding:12px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  color:var(--navy);
  transition:color .2s ease;
}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:34px;height:34px;background:var(--blue);position:relative;flex:none}
.brand-mark::before,.brand-mark::after{
  content:"";position:absolute;background:#fff;
}
.brand-mark::before{left:6px;right:6px;top:50%;height:2px;transform:translateY(-50%)}
.brand-mark::after{top:6px;bottom:6px;left:50%;width:2px;transform:translateX(-50%)}
.brand-jp{font-family:"Noto Serif JP";font-weight:900;font-size:16px;letter-spacing:.1em;line-height:1.2}
.brand-en{font-family:"JetBrains Mono";font-size:9px;letter-spacing:.25em;color:var(--mute);margin-top:2px}

.menu{display:flex;gap:28px;font-size:13px;font-weight:500}
.menu a{position:relative;padding:4px 0}
.menu a:hover{color:var(--blue)}

.header-cta{
  border:1px solid var(--blue);
  color:var(--blue);
  padding:10px 18px;font-size:12px;font-weight:700;letter-spacing:.1em;
  border-radius:2px;background:transparent;
  display:inline-flex;align-items:center;gap:8px;
  transition:all .2s ease;
}
.header-cta:hover{background:var(--blue);color:#fff}

.menu-toggle{display:none}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:14px 24px;font-size:13px;font-weight:700;letter-spacing:.08em;
  border-radius:2px;transition:all .2s ease;
  border:1px solid transparent;
}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--navy)}
.btn-ghost{border-color:var(--blue);color:var(--blue);background:transparent}
.btn-ghost:hover{background:var(--blue);color:#fff}
.btn-arrow::after{content:"→";transition:transform .2s ease}
.btn-arrow:hover::after{transform:translateX(4px)}

/* ---- Sections ---- */
section{padding:96px 0}
.bg-ivory{background:var(--ivory)}
.bg-navy{background:var(--navy);color:#fff}
.bg-navy h1,.bg-navy h2,.bg-navy h3,.bg-navy h4{color:#fff}
.bg-blue-soft{background:var(--blue-soft)}

/* ---- Footer ---- */
.site-footer{background:var(--ivory);color:#4b5563;padding:72px 0 24px;border-top:1px solid var(--line)}
.footer-logo{
  display:block !important;
  height:48px !important;
  width:auto !important;
  margin-bottom:20px;
}
.site-footer h4{font-family:"JetBrains Mono";font-size:11px;font-weight:400;letter-spacing:.25em;color:var(--blue);margin-bottom:16px;text-transform:uppercase}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:56px;padding-bottom:56px;border-bottom:1px solid var(--line)}
.footer-brand p{margin-top:20px;font-size:13px;color:#6b7280;line-height:2}
.footer-links{list-style:none;font-size:14px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#374151}
.footer-links a:hover{color:var(--blue)}
.footer-bottom{display:flex;justify-content:space-between;padding-top:24px;font-size:12px;color:var(--mute);font-family:"JetBrains Mono"}

/* ---- Utilities ---- */
.divider{height:1px;background:var(--line);margin:80px 0}
.tag-pill{
  display:inline-block;padding:4px 12px;border-radius:2px;
  background:var(--blue-soft);color:var(--blue);
  font-size:11px;font-weight:700;letter-spacing:.1em;
}

/* ---- Page Hero (下層) ---- */
.page-hero{
  position:relative;height:340px;color:#fff;overflow:hidden;background:var(--navy);
  padding-top:70px;
}
.page-hero .bg{position:absolute;inset:0;opacity:.35}
.page-hero .bg img{width:100%;height:100%;object-fit:cover}
.page-hero .inner{
  position:relative;z-index:2;max-width:var(--max);margin:0 auto;padding:60px 24px 0;
  height:100%;display:flex;flex-direction:column;justify-content:center;gap:14px;
}
.page-hero .crumb{
  font-family:"JetBrains Mono";font-size:11px;letter-spacing:.2em;
  color:rgba(255,255,255,.75);
}
.page-hero .crumb a{color:inherit}
.page-hero .crumb a:hover{color:#7cb8ff}
.page-hero h1{color:#fff;font-size:44px;line-height:1.3}
.page-hero h1 small{
  display:block;font-family:"JetBrains Mono";font-size:12px;letter-spacing:.3em;
  color:#7cb8ff;font-weight:400;margin-bottom:8px;text-transform:uppercase;
}

/* ---- 汎用テーブル ---- */
.info-table{width:100%;border-collapse:collapse;font-size:14px}
.info-table th,.info-table td{padding:20px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);line-height:1.9}
.info-table th{width:200px;color:var(--navy);font-weight:700;background:var(--blue-soft)}

/* ---- Image Slots ----
   <image-slot> は shadow DOM で :host{display:inline-block;position:relative} が固定。
   .slot-fill を付けたスロットは、親コンテナの幅・高さを埋める。
   親コンテナ側で position:relative + サイズ確保（aspect-ratio や inset:0）を担当。 */
image-slot.slot-fill{
  width:100%;
  height:100%;
  vertical-align:top;
}
/* image-slot を親コンテナに fill させる
   :host{display:inline-block;position:relative} を確実に上書きするため !important */
image-slot.slot-fill{
  position:absolute !important;
  inset:0 !important;
  width:100% !important;
  height:100% !important;
  display:block !important;
}

/* ===============================================
   モバイル用ハンバーガーボタン
   =============================================== */
.menu-toggle{
  display:none;
  background:none;border:none;
  width:44px;height:44px;
  flex-direction:column;
  justify-content:center;align-items:center;
  gap:5px;padding:0;cursor:pointer;
  position:relative;z-index:110;
}
.menu-toggle span{
  display:block;width:24px;height:2px;
  background:var(--navy);
  transition:transform .3s ease, opacity .2s ease, background .2s ease;
  transform-origin:center;
}
.menu-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-active span:nth-child(2){opacity:0}
.menu-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===============================================
   モバイルメニュー（フルスクリーンオーバーレイ）
   =============================================== */
.mobile-menu{
  position:fixed;top:0;left:0;right:0;bottom:0;
  z-index:105;
  background:#fff;
  visibility:hidden;opacity:0;
  transition:opacity .3s ease, visibility 0s linear .3s;
  overflow-y:auto;
  -webkit-overflow-scrolling:touch;
}
.mobile-menu.is-open{
  visibility:visible;opacity:1;
  transition:opacity .3s ease;
}
.mm-inner{
  min-height:100%;
  display:flex;flex-direction:column;
  padding:0 24px 32px;
}
.mm-head{
  display:flex;justify-content:space-between;align-items:center;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.mm-logo{height:36px;width:auto}
.mm-close{
  width:44px;height:44px;
  background:none;border:none;
  font-size:28px;color:var(--navy);
  cursor:pointer;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.mm-nav{
  display:flex;flex-direction:column;
  margin-top:24px;
}
.mm-nav a{
  display:grid;
  grid-template-columns:44px 1fr 24px;
  gap:12px;align-items:center;
  padding:20px 4px;
  border-bottom:1px solid var(--line-soft);
  color:var(--navy);
  text-decoration:none;
  transition:background .15s ease;
}
.mm-nav a:hover{background:var(--blue-soft)}
.mm-num{
  font-family:"JetBrains Mono",monospace;
  font-size:11px;letter-spacing:.15em;
  color:var(--blue);
}
.mm-nav a span:nth-child(2){
  font-family:"Noto Serif JP",serif;
  font-weight:700;font-size:17px;
  letter-spacing:.05em;
}
.mm-arrow{color:var(--mute);font-family:"JetBrains Mono"}

.mm-sub{margin-top:32px}
.mm-camera{
  display:flex;flex-direction:column;
  gap:6px;padding:20px 24px;
  background:linear-gradient(135deg, var(--navy), #123659);
  color:#fff;text-decoration:none;
  border-radius:6px;
  font-family:"Noto Serif JP",serif;
  font-weight:700;font-size:16px;
}
.mm-camera-tag{
  font-family:"JetBrains Mono",monospace;
  font-size:10px;letter-spacing:.2em;
  color:#7cb8ff;font-weight:400;
}

.mm-footer{
  margin-top:auto;padding-top:32px;
  border-top:1px solid var(--line);
}
.mm-tel-lbl{
  font-family:"JetBrains Mono",monospace;
  font-size:11px;letter-spacing:.15em;
  color:var(--mute);margin-bottom:8px;
  text-align:center;
}
.mm-tel{
  display:flex;align-items:center;justify-content:center;
  gap:12px;
  padding:18px 24px;
  background:var(--blue);color:#fff;
  border-radius:6px;text-decoration:none;
}
.mm-tel-icon{font-size:20px}
.mm-tel-num{
  font-family:"Noto Serif JP",serif;
  font-weight:900;font-size:22px;letter-spacing:.02em;
}
.mm-line{
  display:flex;align-items:center;justify-content:center;
  gap:12px;
  padding:16px 24px;margin-top:10px;
  background:#06c755;color:#fff;
  border-radius:6px;text-decoration:none;
  transition:background .2s ease;
}
.mm-line:hover{background:#05a445;color:#fff}
.mm-line-icon{
  width:28px;height:28px;
  background:#fff;color:#06c755;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:900;font-size:15px;
}
.mm-line-txt{
  font-weight:700;font-size:15px;letter-spacing:.03em;
}

/* ===============================================
   モバイル下部固定CTA（電話+LINE+フォーム）
   =============================================== */
.mobile-sticky-cta{
  display:none;
  position:fixed;bottom:0;left:0;right:0;
  z-index:90;
  background:#fff;
  border-top:1px solid var(--line);
  padding:8px;
  grid-template-columns:1fr 1fr 1fr;
  gap:6px;
  box-shadow:0 -8px 24px -8px rgba(0,0,0,.12);
}
.msc-btn{
  display:flex;align-items:center;justify-content:center;
  gap:8px;
  padding:12px 6px;
  border-radius:6px;
  color:#fff;text-decoration:none;
  min-height:52px;
}
.msc-tel{background:var(--blue)}
.msc-line{background:#06c755}
.msc-form{background:var(--navy)}
.msc-icon{font-size:18px;flex:none;line-height:1}
.msc-line-icon{
  width:22px;height:22px;
  background:#fff;color:#06c755;
  border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:900;font-size:13px;
}
.msc-txt{display:flex;flex-direction:column;line-height:1.2;text-align:left}
.msc-lbl{font-size:9px;opacity:.85;letter-spacing:.08em;font-family:"JetBrains Mono",monospace}
.msc-val{font-size:13px;font-weight:700;margin-top:2px}

/* ===============================================
   Responsive - モバイル最適化
   =============================================== */
@media (max-width: 900px){
  /* ヘッダー */
  .menu, .header-cta{display:none}
  .menu-toggle{display:flex}
  .site-header .brand-logo{height:32px !important}
  .nav-inner{padding:10px 20px}

  /* 汎用セクション */
  section{padding:56px 0}
  .wrap{padding:0 20px}
  .section-title{font-size:24px;line-height:1.5}
  .section-title small{font-size:10px;margin-bottom:6px}
  .section-lead{font-size:14px;line-height:1.9}
  .eyebrow{font-size:10px;letter-spacing:.2em}
  .eyebrow::before{width:20px}

  /* フッター */
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .footer-logo{height:44px !important}
  .footer-bottom{flex-direction:column;gap:8px;text-align:center}

  /* Page hero (下層ページ) */
  .page-hero{height:220px;padding-top:60px}
  .page-hero .inner{padding:20px 20px 0}
  .page-hero h1{font-size:28px}
  .page-hero h1 small{font-size:10px}

  /* 汎用テーブル */
  .info-table th,.info-table td{display:block;width:100%;padding:12px 14px}
  .info-table th{background:var(--blue-soft);border-bottom:none}
  .info-table td{border-bottom:1px solid var(--line)}

  /* 下部CTAの分だけ body に padding 確保 */
  body{padding-bottom:72px}
  
  /* 下部固定CTAを表示 */
  .mobile-sticky-cta{display:grid}

  /* on-hero でもロゴが見えるよう白背景を強め */
  .site-header.on-hero{background:rgba(255,255,255,.92);backdrop-filter:blur(12px)}

  /* ボタン系 */
  .btn{padding:12px 20px;font-size:12px}
}

/* 小型スマホ（iPhone SEなど） */
@media (max-width: 400px){
  .site-header .brand-logo{height:28px !important}
  .nav-inner{padding:10px 16px}
  .wrap{padding:0 16px}
  .section-title{font-size:22px}
  .msc-val{font-size:13px}
  .mm-nav a span:nth-child(2){font-size:16px}
}