/* ==========================================================================
   01  header + hero + 安心ストリップ   (参考画像 1)
   ========================================================================== */

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--header-h);
  background: var(--paper);
  border-bottom: 1px solid rgba(15, 74, 56, 0.08);
  transition:
    background-color 0.5s var(--ease),
    box-shadow 0.6s var(--ease);
}
.site-header.is-scrolled {
  background: rgba(253, 252, 248, 0.92);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  backdrop-filter: blur(12px) saturate(140%);
  box-shadow: 0 14px 30px -24px rgba(15, 74, 56, 0.6);
}
.site-header__in {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: block;
  line-height: 0;
  flex: none;
}
.logo img {
  width: auto;
  height: clamp(24px, 1.1rem + 0.9vw, 32px);
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: clamp(24px, 3.4vw, 52px);
}
.site-nav a {
  position: relative;
  display: inline-block;
  padding: 8px 2px;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
  color: var(--ink);
  transition: color 0.3s var(--ease);
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.55s var(--ease);
}
.site-nav a:hover,
.site-nav a[aria-current] {
  color: var(--g-950);
}
.site-nav a:hover::after,
.site-nav a[aria-current]::after {
  transform: scaleX(1);
}

/* hamburger */
.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  margin-right: -8px;
  border: 0;
  background: transparent;
  border-radius: var(--r);
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  border-radius: 2px;
  background: var(--g-950);
  transition:
    transform 0.55s var(--ease),
    opacity 0.3s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 27px; }
.menu-open .nav-toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 899px) {
  .nav-toggle {
    display: inline-block;
  }
  .site-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    padding: 4px var(--gutter) 28px;
    background: var(--paper);
    border-bottom: 1px solid var(--line-soft);
    box-shadow: 0 30px 40px -30px rgba(15, 74, 56, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition:
      opacity 0.45s var(--ease),
      transform 0.6s var(--ease),
      visibility 0s linear 0.6s;
  }
  .menu-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition-delay: 0s;
  }
  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .site-nav a {
    display: block;
    padding: 16px 2px;
    font-size: 1.0625rem;
    border-bottom: 1px solid var(--line-soft);
  }
  .site-nav a::after {
    display: none;
  }
  .menu-open {
    overflow: hidden;
  }
}

/* ---------- hero ---------- */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: clamp(540px, calc(100dvh - var(--header-h) - 104px), 820px);
  padding-block: clamp(56px, 7vw, 96px);
  overflow: hidden;
  color: #fff;
  isolation: isolate;
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
  border-radius: 0;
  transform-origin: 70% 40%;
  animation: hero-settle 2.6s var(--ease) both;
}
/* 樹木・住宅街のイメージを示す、緑の濃淡だけのプレースホルダー */
.hero__media.ph--deep {
  --ph-a: #1a5e46;
  --ph-b: #0d3d2e;
  background:
    radial-gradient(38% 46% at 82% 34%, rgba(126, 178, 140, 0.55), transparent 70%),
    radial-gradient(30% 40% at 62% 78%, rgba(78, 138, 104, 0.5), transparent 72%),
    radial-gradient(34% 44% at 20% 18%, rgba(70, 130, 96, 0.45), transparent 72%),
    linear-gradient(120deg, var(--ph-b) 0%, var(--ph-a) 55%, #3e8566 100%);
}
.hero__media .ph__img {
  z-index: 0;
  object-position: 62% 50%;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    90deg,
    rgba(9, 44, 33, 0.88) 0%,
    rgba(9, 44, 33, 0.72) 34%,
    rgba(9, 44, 33, 0.16) 62%,
    rgba(9, 44, 33, 0) 78%
  );
}
.hero .ph__cap {
  right: clamp(12px, 3vw, 44px);
  bottom: 14px;
  z-index: 1;
}

.hero__copy {
  max-width: 660px;
}
.hero__eyebrow {
  font-size: clamp(0.9375rem, 0.8rem + 0.5vw, 1.1875rem);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: #eaf3ec;
}
.hero__title {
  margin-top: clamp(14px, 1.6vw, 22px);
  color: #fff;
  font-size: clamp(2.375rem, 1.3rem + 3.7vw, 4.375rem);
  line-height: 1.25;
  letter-spacing: 0.015em;
  text-wrap: auto;
  text-shadow: 0 2px 24px rgba(6, 34, 25, 0.35);
}
.hero__lead {
  margin-top: clamp(20px, 2.4vw, 32px);
  font-size: clamp(1rem, 0.9rem + 0.45vw, 1.25rem);
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: 0.04em;
  color: #f1f7f3;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 20px;
  margin-top: clamp(28px, 3.4vw, 44px);
}
.btn--xl {
  min-height: clamp(64px, 5vw + 24px, 84px);
  padding-inline: clamp(24px, 2.4vw, 34px) clamp(22px, 2vw, 28px);
  font-size: clamp(1.125rem, 1rem + 0.5vw, 1.5rem);
  min-width: min(100%, 372px);
}
.btn__tel {
  display: grid;
  gap: 2px;
  line-height: 1.1;
  text-align: left;
}
.btn__tel small {
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--g-800);
}
.btn__tel b {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.5rem, 1.15rem + 1vw, 2rem);
  letter-spacing: 0.03em;
  color: var(--g-950);
}
.hero .btn--white {
  min-width: min(100%, 330px);
}
.hero .btn--white .ic {
  width: 30px;
  height: 30px;
  color: var(--g-900);
}

@keyframes hero-settle {
  from {
    transform: scale(1.07);
  }
  to {
    transform: scale(1);
  }
}

/* ---------- 安心ストリップ ---------- */
.hero-strip {
  background: var(--g-50);
  border-bottom: 1px solid var(--line-soft);
}
.hero-strip__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}
.hero-strip__item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 1.6vw, 22px);
  min-height: 104px;
  padding-block: 20px;
  font-size: clamp(1rem, 0.85rem + 0.6vw, 1.1875rem);
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--g-950);
}
.hero-strip__item + .hero-strip__item {
  border-left: 1px solid var(--line-soft);
}
.hero-strip__item .ic {
  width: clamp(32px, 3vw, 44px);
  height: clamp(32px, 3vw, 44px);
  color: var(--g-900);
}
.hero-strip__item span {
  text-wrap: pretty;
}

@media (max-width: 719px) {
  .hero {
    align-items: flex-end;
    min-height: 0;
    padding-block: 250px 44px;
  }
  .hero__media .ph__img {
    object-position: 72% 50%;
  }
  .hero__scrim {
    background: linear-gradient(
      180deg,
      rgba(9, 44, 33, 0.1) 0%,
      rgba(9, 44, 33, 0.72) 52%,
      rgba(9, 44, 33, 0.94) 100%
    );
  }
  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }
  .btn--xl,
  .hero .btn--white {
    min-width: 0;
    width: 100%;
  }
  .hero-strip__item {
    flex-direction: column;
    gap: 8px;
    min-height: 0;
    padding: 22px 12px;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero__media {
    animation: none;
  }
}