@charset "UTF-8";

/* ── Announce bar ── */
.announce-bar {
  background: var(--c-orange);
  color: var(--c-white);
  text-align: center;
  padding: var(--sp-2) var(--container-pad);
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  line-height: 1.6;
}

/* ── Site header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-navy);
  box-shadow: var(--shadow-md);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  height: 64px;
}
.site-logo {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--c-white);
  text-decoration: none;
  line-height: 1.3;
  max-width: 280px;
}
.site-logo:hover { color: var(--c-gray-200); text-decoration: none; }

/* Desktop nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
.site-nav a {
  color: rgba(255,255,255,.85);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  padding: var(--sp-2) var(--sp-3);
  border-radius: var(--r-sm);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--trans-fast), color var(--trans-fast);
}
.site-nav a:hover { background: rgba(255,255,255,.12); color: var(--c-white); text-decoration: none; }
.site-nav .nav-cta {
  background: var(--c-orange);
  color: var(--c-white);
  border-radius: var(--r-md);
  padding: var(--sp-2) var(--sp-4);
  font-weight: var(--fw-bold);
}
.site-nav .nav-cta:hover { background: var(--c-orange-dark); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--sp-2);
  z-index: 200;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: transform var(--trans-base), opacity var(--trans-base);
}
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(86vw, 360px);
  height: 100dvh;
  background: #08172b;
  z-index: 300;
  display: flex;
  flex-direction: column;
  padding: 0;
  padding-bottom: env(safe-area-inset-bottom, 0);
  transform: translateX(100%);
  transition: transform .3s cubic-bezier(.4, 0, .2, 1);
  overflow-y: auto;
  overscroll-behavior: contain;
  box-shadow: -8px 0 40px rgba(0, 0, 0, .55);
}
.mobile-nav.is-open { transform: translateX(0); }

/* Drawer header (injected by menu.js) */
.mobile-nav__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  flex-shrink: 0;
  background: rgba(255, 255, 255, .03);
}
.mobile-nav__logo {
  font-size: .7rem;
  font-weight: 700;
  color: rgba(255, 255, 255, .85);
  line-height: 1.45;
  max-width: calc(100% - 52px);
}
.mobile-nav__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 8px;
  color: #fff;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  flex-shrink: 0;
  font-family: var(--ff-sans);
  transition: background .2s;
}
.mobile-nav__close:hover { background: rgba(255, 255, 255, .22); }

.mobile-nav__list { display: flex; flex-direction: column; }
.mobile-nav__list a {
  display: block;
  color: var(--c-white);
  font-size: var(--fs-lg);
  font-weight: var(--fw-medium);
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  text-decoration: none;
  transition: background var(--trans-fast);
}
.mobile-nav__list a:hover { background: rgba(255,255,255,.08); color: var(--c-white); text-decoration: none; }

.mobile-nav__cta {
  margin-top: auto;
  padding: var(--sp-6) 20px;
  padding-bottom: max(var(--sp-6), env(safe-area-inset-bottom, 0));
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

/* Overlay backdrop (injected by menu.js) */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .55);
  z-index: 290;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}
.mobile-nav-overlay.is-open {
  opacity: 1;
  pointer-events: auto;
  touch-action: none;
}

/* ── Hero ── */
.hero {
  position: relative;
  overflow: hidden;
}
/* picture 要素をブロック化して img と同じフロー確保 */
.hero__picture {
  display: block;
}
.hero__img {
  display: block;
  width: 100%;
  height: 560px;           /* PC: 迫力のある高さ */
  object-fit: cover;
  /* 1692x929 (16:9) 横長画像: 右側のショベルカー・建物が見えるよう右寄せ */
  object-position: right center;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  /* 左側を濃く: テキストを読みやすくしつつ右に写真が見える */
  background: linear-gradient(
    108deg,
    rgba(17,30,51,.93) 0%,
    rgba(17,30,51,.82) 42%,
    rgba(17,30,51,.28) 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top:    var(--sp-10);
  padding-bottom: var(--sp-10);
  padding-left:   clamp(1.5rem, 6vw, 4rem);
  padding-right:  clamp(1.5rem, 6vw, 4rem);
  max-width: 680px;
}
.hero__title {
  font-size: clamp(1.1rem, 2.8vw, 1.875rem);
  color: var(--c-white);
  margin-bottom: var(--sp-5);
  text-shadow: 0 2px 8px rgba(0,0,0,.55);
  line-height: 1.55;
}
.hero__desc {
  color: rgba(255,255,255,.90);
  font-size: var(--fs-base);
  line-height: 1.85;
  margin-bottom: var(--sp-7);
  text-shadow: 0 1px 4px rgba(0,0,0,.40);
}
.hero__actions { display: flex; gap: var(--sp-4); flex-wrap: wrap; }

/* ── Page Hero (interior pages) ── */
.page-hero {
  background: linear-gradient(135deg, var(--c-navy-dark) 0%, var(--c-navy) 100%);
  padding: var(--sp-12) 0;
  text-align: center;
}
.page-hero__title {
  font-size: clamp(var(--fs-2xl), 4vw, var(--fs-4xl));
  color: var(--c-white);
  line-height: 1.3;
  margin-bottom: 0;
}
.page-hero__title::after {
  content: '';
  display: block;
  width: 50px;
  height: 3px;
  background: var(--c-orange);
  margin: var(--sp-4) auto 0;
}

/* ── Campaign section ── */
.campaign-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  margin-top: var(--sp-8);
}
@media (max-width: 768px) { .campaign-grid { grid-template-columns: 1fr; } }

/* ── Contact CTA section ── */
.contact-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
  margin-top: var(--sp-8);
}
@media (max-width: 768px) { .contact-cols { grid-template-columns: 1fr; } }

/* ── Main content ── */
.content-img-block { margin-block: var(--sp-8); }
.content-img-block img { width: 100%; border-radius: var(--r-lg); }

/* ── Final CTA ── */
.final-cta-inner {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
}
.final-cta-inner .sec-title { margin-bottom: var(--sp-4); }
.final-cta-inner p { color: rgba(255,255,255,.8); font-size: var(--fs-lg); margin-bottom: var(--sp-8); }
.final-cta-actions { display: flex; gap: var(--sp-4); justify-content: center; flex-wrap: wrap; margin-bottom: var(--sp-6); }

/* ── Footer ── */
.site-footer { background: var(--c-gray-900); color: var(--c-gray-400); padding-block: var(--sp-12); }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-8);
  margin-bottom: var(--sp-8);
}
@media (max-width: 600px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand__name { color: var(--c-white); font-weight: var(--fw-bold); font-size: var(--fs-base); line-height: 1.5; margin-bottom: var(--sp-3); }
.footer-brand__text { font-size: var(--fs-sm); line-height: 1.7; }
.footer-nav__title { color: var(--c-white); font-weight: var(--fw-bold); font-size: var(--fs-sm); margin-bottom: var(--sp-3); }
.footer-nav__list { display: flex; flex-direction: column; gap: var(--sp-2); }
.footer-nav__list a { color: var(--c-gray-400); font-size: var(--fs-sm); text-decoration: none; transition: color var(--trans-fast); }
.footer-nav__list a:hover { color: var(--c-white); text-decoration: none; }
.footer-copy { border-top: 1px solid rgba(255,255,255,.08); padding-top: var(--sp-6); text-align: center; font-size: var(--fs-xs); color: var(--c-gray-600); }

/* ── Page top ── */
.page-top {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  width: 48px;
  height: 48px;
  background: var(--c-navy);
  color: var(--c-white);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  text-decoration: none;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans-base), transform var(--trans-fast), background var(--trans-fast);
  z-index: 90;
  font-size: 1.25rem;
  line-height: 1;
}
.page-top.is-visible { opacity: 1; pointer-events: auto; }
.page-top:hover { background: var(--c-navy-mid); color: var(--c-white); text-decoration: none; transform: translateY(-3px); }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .site-nav { display: none; }
  .hamburger { display: flex; }
}
@media (max-width: 768px) {
  .hero__img {
    height: 440px;
    /* スマホ: 中央寄せでショベルカーと建物を両方表示 */
    object-position: center center;
  }
  .hero__overlay {
    max-width: 100%;
    padding: var(--sp-6) var(--sp-5);
    /* スマホ: オーバーレイを薄め、画像の迫力を活かす */
    background: linear-gradient(
      to bottom,
      rgba(17,30,51,.55) 0%,
      rgba(17,30,51,.42) 55%,
      rgba(17,30,51,.32) 100%
    );
  }
  /* スマホ: text-shadow を強化して白文字の可読性を維持 */
  .hero__title {
    text-shadow: 0 2px 14px rgba(0,0,0,.75), 0 1px 4px rgba(0,0,0,.65);
  }
  .hero__desc {
    text-shadow: 0 1px 8px rgba(0,0,0,.70), 0 1px 3px rgba(0,0,0,.55);
  }
}
@media (max-width: 480px) {
  .hero__img { height: 380px; }
  /* 480px以下では説明文・サブボタンを非表示にして文字の重なりを防ぐ */
  .hero__desc { display: none; }
  .hero__actions .btn--outline { display: none; }
}