@charset "UTF-8";

/* =========================================================
   佐隆板金住宅リフォーム - TOPページ (index.css)
   v2: ヒーロースライドショー / 演出強化
   ========================================================= */

/* ---- ヒーロー ---- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -1; background: var(--ink); }
.hero__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.8s var(--ease);
}
.hero__slide.is-active { opacity: 1; }
.hero__slide img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.08);
}
.hero__slide.is-active img {
  animation: heroZoom 9s linear forwards;
}
@keyframes heroZoom { from { transform: scale(1.08); } to { transform: scale(1); } }
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(100deg,
    rgba(18, 24, 20, 0.84) 0%,
    rgba(18, 24, 20, 0.6) 42%,
    rgba(18, 24, 20, 0.22) 100%);
}
.hero__overlay::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 30%;
  background: linear-gradient(180deg, transparent, rgba(18,24,20,0.55));
}

.hero__inner { color: #fff; padding-top: var(--header-h); position: relative; }

/* 入場演出はローダー明け（body.is-ready）に開始 */
.hero__kicker {
  font-family: var(--serif);
  font-size: 0.84rem;
  letter-spacing: 0.3em;
  color: rgba(255,255,255,0.85);
  margin-bottom: 32px;
  padding-left: 48px;
  position: relative;
  opacity: 0;
}
.hero__kicker::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 32px; height: 1px; background: rgba(255,255,255,0.7);
  transform: scaleX(0);
  transform-origin: left;
}
.is-ready .hero__kicker { animation: heroUp 1s var(--ease-out) 0.25s forwards; }
.is-ready .hero__kicker::before { animation: heroLine 0.9s var(--ease-out) 0.7s forwards; }
@keyframes heroLine { to { transform: scaleX(1); } }

.hero__title {
  font-family: var(--serif);
  font-size: clamp(2.5rem, 7.5vw, 4.8rem);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: 0.06em;
  font-feature-settings: "palt";
}
.hero__line { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }
.hero__line span {
  display: block;
  transform: translateY(112%);
}
.is-ready .hero__line:nth-child(1) span { animation: heroReveal 1.15s var(--ease-expo) 0.45s forwards; }
.is-ready .hero__line:nth-child(2) span { animation: heroReveal 1.15s var(--ease-expo) 0.62s forwards; }
@keyframes heroReveal { to { transform: none; } }

.hero__lead {
  margin-top: 32px;
  font-size: clamp(0.94rem, 2vw, 1.08rem);
  line-height: 2.15;
  color: rgba(255,255,255,0.92);
  text-shadow: 0 1px 18px rgba(18,24,20,0.4);
  opacity: 0;
}
.is-ready .hero__lead { animation: heroUp 1s var(--ease-out) 1.05s forwards; }

.hero__actions {
  margin-top: 46px;
  display: flex; gap: 16px; flex-wrap: wrap;
  opacity: 0;
}
.is-ready .hero__actions { animation: heroUp 1s var(--ease-out) 1.2s forwards; }

.hero__badges {
  margin-top: 42px;
  display: flex; flex-wrap: wrap; gap: 14px 28px;
  opacity: 0;
}
.is-ready .hero__badges { animation: heroUp 1s var(--ease-out) 1.35s forwards; }
.hero__badges li {
  position: relative;
  font-size: 0.86rem;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.92);
  padding-left: 26px;
}
.hero__badges li::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%) rotate(45deg);
  width: 9px; height: 9px;
  border-right: 1.5px solid var(--moss-soft); border-bottom: 1.5px solid var(--moss-soft);
}
@keyframes heroUp { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

/* 縦書きの英字（右端の飾り） */
.hero__side {
  position: absolute;
  right: 34px;
  bottom: 40px;
  writing-mode: vertical-rl;
  font-family: var(--en);
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  color: rgba(255,255,255,0.55);
  opacity: 0;
}
.is-ready .hero__side { animation: heroSide 1.2s var(--ease-out) 1.6s forwards; }
@keyframes heroSide { from { opacity: 0; transform: translateY(26px); } to { opacity: 1; transform: none; } }

/* 下部バー：スクロール + スライド番号 */
.hero__bottom {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 0 0 34px;
  pointer-events: none;
  opacity: 0;
}
.is-ready .hero__bottom { animation: heroUp 1s var(--ease-out) 1.5s forwards; }
.hero__scroll {
  pointer-events: auto;
  position: relative;
  left: 50%;
  transform: translateX(-50%);
  display: inline-block;
  font-family: var(--en);
  font-size: 0.66rem; letter-spacing: 0.34em;
  color: rgba(255,255,255,0.8);
  writing-mode: vertical-rl;
}
.hero__scroll::after {
  content: ""; display: block;
  width: 1px; height: 48px; margin: 12px auto 0;
  background: rgba(255,255,255,0.6);
  animation: scrollline 1.9s var(--ease) infinite;
  transform-origin: top;
}
@keyframes scrollline {
  0% { transform: scaleY(0); } 50% { transform: scaleY(1); }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
.hero__count {
  position: absolute;
  left: 30px;
  bottom: 2px;
  display: flex;
  gap: 18px;
  font-family: var(--en);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: rgba(255,255,255,0.45);
}
.hero__count li { position: relative; padding-bottom: 8px; transition: color 0.5s var(--ease); }
.hero__count li::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: #fff;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease);
}
.hero__count li.is-active { color: #fff; }
.hero__count li.is-active::after { transform: scaleX(1); }

/* ---- 実績バンド ---- */
.trust { background: var(--ink); color: #fff; padding: 64px 0; position: relative; overflow: hidden; }
.trust::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(circle at 85% 10%, rgba(93,125,106,0.16), transparent 55%);
  pointer-events: none;
}
.trust__grid { display: grid; grid-template-columns: repeat(4, 1fr); position: relative; }
.trust__item {
  text-align: center;
  padding: 8px 20px;
  border-right: 1px solid rgba(255,255,255,0.12);
}
.trust__item:last-child { border-right: none; }
.trust__num {
  display: flex; align-items: baseline; justify-content: center; gap: 4px;
  font-family: var(--en);
  line-height: 1;
  color: #fff;
}
.trust__num em { font-style: normal; font-size: clamp(2.8rem, 6vw, 4rem); font-weight: 500; }
.trust__unit { font-size: 1.05rem; color: var(--moss-soft); font-family: var(--serif); }
.trust__label { display: block; margin-top: 14px; font-size: 0.8rem; letter-spacing: 0.1em; color: rgba(255,255,255,0.7); }

/* ---- 理念 ---- */
.intro { overflow: hidden; }
.intro__inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 80px; align-items: center;
}
.intro__media { position: relative; border-radius: 4px; }
.intro__media img {
  width: 100%; aspect-ratio: 4 / 5; object-fit: cover;
  border-radius: 4px; box-shadow: var(--shadow-md);
}
.intro__media-cap {
  position: absolute; left: -14px; bottom: 36px;
  writing-mode: vertical-rl;
  font-family: var(--en); font-size: 0.74rem; letter-spacing: 0.3em;
  color: #fff; background: var(--moss); padding: 16px 9px;
  z-index: 3;
}
.intro__en {
  font-family: var(--en); font-size: 0.9rem; letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--moss-soft); margin-bottom: 22px;
  display: flex; align-items: center; gap: 14px;
}
.intro__en::after { content: ""; width: 48px; height: 1px; background: var(--moss-soft); opacity: 0.6; }
.intro__title {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  font-weight: 600; line-height: 1.6; margin-bottom: 30px;
  font-feature-settings: "palt";
}
.intro__body { color: var(--ink-soft); font-size: 0.97rem; }

/* ---- お悩み訴求 ---- */
.worries__grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  max-width: 980px; margin: 0 auto;
}
.worry {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 34px 28px 34px 66px;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.7;
  letter-spacing: 0.03em;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease);
}
.worry:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: var(--moss-soft); }
.worry::before {
  content: "?";
  position: absolute; left: 24px; top: 32px;
  width: 27px; height: 27px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--en); font-size: 1rem;
  color: #fff; background: var(--moss); border-radius: 50%;
}
.worries__cta { text-align: center; margin-top: 52px; }
.worries__cta p { font-size: 0.96rem; color: var(--ink-soft); margin-bottom: 26px; }

/* ---- 事業内容 ---- */
.services-preview { position: relative; }
.services-grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px;
}
.service-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.45s var(--ease);
}
.service-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); border-color: var(--moss-soft); }
.service-card__img {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}
.service-card__img::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(18,24,20,0.28));
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.service-card:hover .service-card__img::after { opacity: 1; }
.service-card__img img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.8s var(--ease);
}
.service-card:hover .service-card__img img { transform: scale(1.06); }
.service-card__body { padding: 30px 30px 36px; flex: 1; }
.service-card__no {
  font-family: var(--en); font-size: 0.95rem; letter-spacing: 0.14em;
  color: var(--moss-soft);
  display: inline-flex; align-items: center; gap: 10px;
}
.service-card__no::after { content: ""; width: 26px; height: 1px; background: var(--moss-soft); opacity: 0.6; }
.service-card h3 {
  font-family: var(--serif); font-size: 1.26rem; font-weight: 600;
  margin: 14px 0 14px; letter-spacing: 0.05em;
}
.service-card h3 small {
  display: block; font-size: 0.7rem; font-weight: 400;
  letter-spacing: 0.2em; color: var(--ink-mute); margin-top: 7px;
  font-family: var(--sans);
}
.service-card p { font-size: 0.88rem; color: var(--ink-soft); }
.card-link { position: absolute; inset: 0; z-index: 2; }

.service-card--more {
  background: linear-gradient(160deg, var(--moss), var(--moss-dark));
  color: #fff; border-color: var(--moss);
  display: flex; flex-direction: column; justify-content: center;
  padding: 44px 34px;
  position: relative;
  overflow: hidden;
}
.service-card--more::after {
  content: "+";
  position: absolute;
  right: -10px; bottom: -36px;
  font-family: var(--en);
  font-size: 9rem;
  line-height: 1;
  color: rgba(255,255,255,0.08);
  pointer-events: none;
}
.service-card--more h3 { color: #fff; margin-top: 0; }
.service-card--more p { color: rgba(255,255,255,0.82); }

/* ---- 施工事例 ---- */
.works-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.work-card {
  background: #fff; border: 1px solid var(--line); border-radius: 4px;
  overflow: hidden;
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease);
}
.work-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-md); }
.work-card__img { aspect-ratio: 4 / 3; overflow: hidden; position: relative; }
.work-card__img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(18, 24, 20, 0.22);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.work-card:hover .work-card__img::after { opacity: 1; }
.work-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.8s var(--ease); }
.work-card:hover .work-card__img img { transform: scale(1.08); }
.work-card__body { padding: 22px 24px 26px; }
.work-card__tag {
  display: inline-block; font-size: 0.68rem; letter-spacing: 0.1em;
  color: var(--moss); border: 1px solid var(--moss-soft); border-radius: 2px;
  padding: 3px 11px; margin-bottom: 14px;
}
.work-card__body h3 { font-size: 0.98rem; font-weight: 500; letter-spacing: 0.03em; }

/* ---- 選ばれる理由 ---- */
.reasons { position: relative; overflow: hidden; }
.reasons__grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.reason {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 48px 44px 44px;
  overflow: hidden;
  transition: border-color 0.45s var(--ease), background 0.45s var(--ease);
}
.reason::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px; background: var(--moss);
  transform: scaleY(0); transform-origin: top;
  transition: transform 0.5s var(--ease);
}
.reason:hover { border-color: var(--moss-soft); background: #fff; }
.reason:hover::before { transform: scaleY(1); }
.reason__no {
  position: absolute;
  right: 22px; top: 6px;
  font-family: var(--en);
  font-size: 4.6rem;
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
  opacity: 0.06;
  letter-spacing: 0;
  transition: opacity 0.45s var(--ease), color 0.45s var(--ease);
}
.reason:hover .reason__no { opacity: 0.14; color: var(--moss); }
.reason h3 {
  font-family: var(--serif); font-size: 1.3rem; font-weight: 600;
  margin: 0 0 14px; letter-spacing: 0.04em;
  position: relative;
}
.reason p { font-size: 0.9rem; color: var(--ink-soft); position: relative; }

/* ---- 施工の流れ（タイムライン） ---- */
.flow-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
  padding-top: 30px;
}
/* つなぐ線 */
.flow-list::before {
  content: "";
  position: absolute;
  left: 9%; right: 9%;
  top: 0;
  height: 1px;
  background: var(--line-strong);
}
.flow-item {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 50px 24px 32px;
  text-align: center;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
.flow-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-sm); border-color: var(--moss-soft); }
/* 番号ノード */
.flow-item::before {
  content: "";
  position: absolute;
  top: -35px;
  left: 50%;
  transform: translateX(-50%);
  width: 11px; height: 11px;
  background: var(--paper-2);
  border: 2px solid var(--moss);
  border-radius: 50%;
  z-index: 1;
}
.flow-item__step {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--en); font-size: 0.74rem; letter-spacing: 0.2em;
  color: var(--moss-soft);
  white-space: nowrap;
}
.flow-item h3 { font-family: var(--serif); font-size: 1.1rem; font-weight: 600; margin: 6px 0 12px; letter-spacing: 0.04em; }
.flow-item h3 small {
  font-size: 0.62rem; color: #fff; background: var(--moss);
  border-radius: 2px; padding: 2px 8px; margin-left: 8px;
  letter-spacing: 0.08em; vertical-align: middle;
  font-family: var(--sans); font-weight: 400;
}
.flow-item p { font-size: 0.84rem; color: var(--ink-soft); text-align: left; }

/* ---- reduced-motion 対応（ヒーローを常時表示） ---- */
@media (prefers-reduced-motion: reduce) {
  .hero__kicker,
  .hero__lead,
  .hero__actions,
  .hero__badges,
  .hero__bottom,
  .hero__side { opacity: 1 !important; animation: none !important; }
  .hero__kicker::before { transform: none !important; animation: none !important; }
  .hero__line span { transform: none !important; animation: none !important; }
  .hero__slide.is-active img { animation: none !important; transform: none; }
}

/* =========================================================
   レスポンシブ
   ========================================================= */
@media (max-width: 1100px) {
  .hero__side { display: none; }
}

@media (max-width: 1000px) {
  .intro__inner { grid-template-columns: 1fr; gap: 48px; }
  .intro__media { max-width: 480px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .works-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-list { grid-template-columns: repeat(2, 1fr); gap: 18px; padding-top: 0; }
  .flow-list::before { display: none; }
  .flow-item::before { display: none; }
}

@media (max-width: 760px) {
  .worries__grid { grid-template-columns: 1fr 1fr; }
  .trust__grid { grid-template-columns: 1fr 1fr; gap: 0; }
  .trust__item:nth-child(2) { border-right: none; }
  .trust__item:nth-child(1), .trust__item:nth-child(2) { border-bottom: 1px solid rgba(255,255,255,0.12); padding-bottom: 28px; }
  .trust__item:nth-child(3), .trust__item:nth-child(4) { padding-top: 28px; }
}

@media (max-width: 600px) {
  .hero { min-height: 94svh; }
  .hero__actions .btn { width: 100%; }
  .hero__badges { gap: 12px 18px; }
  .hero__count { left: 22px; }
  .services-grid { grid-template-columns: 1fr; }
  .works-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .work-card__body { padding: 14px 14px 18px; }
  .work-card__tag { margin-bottom: 8px; }
  .work-card__body h3 { font-size: 0.84rem; }
  .worries__grid { grid-template-columns: 1fr; }
  .reasons__grid { grid-template-columns: 1fr; gap: 18px; }
  .reason { padding: 38px 28px 34px; }
  .flow-list { grid-template-columns: 1fr; }
  .flow-item { text-align: left; padding: 30px 26px; }
  .flow-item__step { position: static; transform: none; display: block; margin-bottom: 8px; }
  .worry { padding: 26px 22px 26px 60px; }
  .worry::before { top: 26px; }
}