/* ============================================================
   Stone Solutions — stones index + stone detail pages
   ============================================================ */

/* ---------- Dark blueprint hero ---------- */
.stone-hero {
  position: relative; background: var(--dark-2); color: var(--bg);
  padding: 88px var(--pad) 96px; overflow: hidden;
}
.stone-hero::before {
  content: ''; position: absolute; inset: 0;
  background: url('../assets/images/UrQqewjnRWVW1vMmm3dcpF3MF4.svg') center / cover no-repeat;
  opacity: .12; pointer-events: none;
}
.stone-hero__in { position: relative; max-width: 760px; }
.stone-hero h1 {
  font-size: clamp(44px, 4.9vw, 70px); font-weight: 500; line-height: 1.02;
  letter-spacing: -0.054em; text-transform: uppercase;
}
.stone-hero__sub {
  font-size: 15px; line-height: 1.5; color: rgba(255, 255, 255, .75);
  margin-top: 24px; max-width: 340px;
}

/* ---------- Index: stones grid ---------- */
.sx-wrap { padding: 44px var(--pad) 80px; }
.sx-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px 24px; }
.sx-card { display: block; background: var(--white); padding: 14px 12px 12px; border: 1px solid var(--line-soft); }
.sx-card h3 { font-size: 15px; font-weight: 500; text-transform: uppercase; letter-spacing: -0.01em; margin-bottom: 14px; }
.sx-card__media { overflow: hidden; }
.sx-card__media img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; transition: transform .7s ease; }
.sx-card:hover .sx-card__media img { transform: scale(1.04); }

/* ---------- Detail: ideal for ---------- */
.ideal { display: grid; grid-template-columns: 1fr 1.06fr; margin: 32px var(--pad) 0; }
.ideal__media { min-height: 100%; }
.ideal__media img { width: 100%; height: 100%; object-fit: cover; }
.ideal__panel { background: #101010; color: var(--bg); padding: 84px 48px 90px; }
.ideal__panel h2 { font-size: 24px; letter-spacing: -0.02em; margin-bottom: 34px; }
.ideal .acc__item { border-color: rgba(255, 255, 255, .14); }
.ideal .acc__head { color: var(--bg); }
.ideal .acc__ico { opacity: .6; }
.ideal .acc__plus::before, .ideal .acc__plus::after { background: var(--bg); }
.ideal .acc__body-in { color: rgba(255, 255, 255, .72); padding-left: 30px; }

/* ---------- Detail: overview statement ---------- */
.stone-overview { padding: 120px var(--pad) 100px; text-align: center; }
.stone-overview .display { max-width: 1020px; margin: 0 auto; }
.stone-overview p {
  max-width: 620px; margin: 44px auto 0;
  font-size: 15px; line-height: 1.6; color: var(--ink-80);
}

/* ---------- Detail: range nav + about ---------- */
.stone-about { display: grid; grid-template-columns: 300px minmax(0, 640px); gap: 90px; padding: 30px var(--pad) 110px; align-items: start; justify-content: center; }
.range-nav { position: sticky; top: 110px; background: #101010; color: var(--bg); padding: 26px 26px 32px; }
.range-nav__h {
  font-size: 15px; font-weight: 500; text-transform: uppercase; letter-spacing: -0.01em;
  border-bottom: 1px solid rgba(255, 255, 255, .35); padding-bottom: 12px; margin-bottom: 16px;
}
.range-nav a { display: block; font-size: 14px; text-transform: uppercase; padding: 8px 0; color: rgba(255, 255, 255, .78); }
.range-nav a:hover { color: var(--white); }
.range-nav a.is-current { color: var(--white); text-decoration: underline; text-underline-offset: 4px; }
.about-block + .about-block { margin-top: 44px; }
.about-block h3 { font-size: 17px; font-weight: 700; text-transform: uppercase; letter-spacing: -0.01em; margin-bottom: 14px; }
.about-block p { font-size: 15px; line-height: 1.6; color: var(--ink-80); }

/* ---------- Detail: why stone solutions ---------- */
.stone-why { display: grid; grid-template-columns: 1fr 1.3fr; gap: 80px; padding: 20px var(--pad) 120px; }
.stone-why__left { position: sticky; top: 110px; align-self: start; max-width: 360px; }
.stone-why__left h2 { margin: 12px 0 18px; }
.stone-why__left > p { font-size: 15px; color: var(--ink-80); margin-bottom: 26px; }
.feat { display: grid; grid-template-columns: 64px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line-soft); }
.feat:first-child { padding-top: 0; }
.feat__num { font-size: 34px; font-weight: 500; letter-spacing: -0.04em; line-height: 1; color: var(--ink-50); }
.feat h3 { font-size: 15px; font-weight: 700; text-transform: uppercase; letter-spacing: -0.01em; margin-bottom: 10px; }
.feat p { font-size: 15px; line-height: 1.55; color: var(--ink-80); }

/* ---------- Detail: inspiration ---------- */
.stone-insp { background: #101010; color: var(--bg); padding: 110px 0 0; }
.stone-insp__head { display: grid; grid-template-columns: 1.35fr 1fr; gap: 60px; align-items: end; padding: 0 var(--pad) 80px; }
.stone-insp__head .eyebrow { color: var(--w-50); margin-bottom: 16px; }
.stone-insp__head h2 { font-size: clamp(26px, 2.6vw, 36px); }
.stone-insp__head h2::after { content: ''; display: block; width: 100px; height: 2px; background: var(--bg); margin-top: 24px; }
.stone-insp__head > p { font-size: 15px; line-height: 1.55; color: rgba(255, 255, 255, .85); max-width: 380px; justify-self: end; }
.insp-strip { display: flex; }
.insp-strip img { flex: 1 1 0; min-width: 0; height: clamp(160px, 22vw, 300px); object-fit: cover; }

/* ---------- Detail: collection ---------- */
.coll { padding: 110px var(--pad) 40px; }
.coll-head { margin-bottom: 34px; }
.coll-head .eyebrow { margin-bottom: 14px; }
.coll-head__row { display: grid; grid-template-columns: 1fr 340px; gap: 40px; align-items: end; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.coll-head__row h2::after { content: ''; display: block; width: 100px; height: 2px; background: var(--ink); margin-top: 20px; }
.coll-head__row > p { font-size: 15px; line-height: 1.55; color: var(--ink-80); }
.coll-head__cta { display: flex; justify-content: flex-end; margin-top: 22px; }

/* belief strip */
.belief {
  position: relative; background: var(--dark-2); color: var(--bg);
  text-align: center; padding: 120px 40px; margin-top: 24px; overflow: hidden;
}
.belief::before {
  content: ''; position: absolute; inset: 0;
  background: url('../assets/images/UrQqewjnRWVW1vMmm3dcpF3MF4.svg') center / cover no-repeat;
  opacity: .14; pointer-events: none;
}
.belief p { position: relative; font-size: 17px; line-height: 1.55; max-width: 560px; margin: 0 auto; }
.belief__lead { font-weight: 700; }
.belief__rest { color: rgba(255, 255, 255, .82); margin-top: 20px !important; }

/* collection items */
.coll-items { padding: 0 var(--pad) 60px; }
.coll-item {
  display: grid;
  grid-template-columns: auto minmax(0, 660px) 340px;
  grid-template-rows: auto 1fr;
  grid-template-areas:
    "meta img name"
    "meta img desc";
  gap: 18px 40px;
  justify-content: center;
  border-top: 1px solid var(--line-soft);
  padding: 48px 0 72px;
}
.coll-item__meta { grid-area: meta; }
.coll-item__label { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.coll-item__num { font-size: 44px; font-weight: 500; letter-spacing: -0.04em; line-height: 1; margin-top: 6px; }
.coll-item__name { grid-area: name; align-self: start; font-size: 20px; font-weight: 500; text-transform: uppercase; letter-spacing: -0.02em; }
.coll-item__img { grid-area: img; width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.coll-item__desc { grid-area: desc; align-self: start; font-size: 15px; line-height: 1.6; color: var(--ink-80); }
@media (max-width: 900px) {
  .coll-item { grid-template-columns: 1fr; grid-template-areas: "meta" "name" "img" "desc"; gap: 18px; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .stone-about { grid-template-columns: 1fr; gap: 50px; justify-content: stretch; }
  .range-nav { position: static; }
  .stone-why { grid-template-columns: 1fr; gap: 40px; }
  .stone-why__left { position: static; }
}
@media (max-width: 900px) {
  .sx-grid { grid-template-columns: 1fr 1fr; }
  .ideal { grid-template-columns: 1fr; }
  .ideal__media img { aspect-ratio: 4 / 3; height: auto; }
  .ideal__panel { padding: 56px 26px 64px; }
  .stone-insp__head { grid-template-columns: 1fr; gap: 30px; }
  .stone-insp__head > p { justify-self: start; }
  .insp-strip { flex-wrap: wrap; }
  .insp-strip img { flex: 1 1 33%; }
  .coll-head__row { grid-template-columns: 1fr; }
  .coll-item__body { grid-template-columns: 1fr; padding: 0; }
}
@media (max-width: 560px) {
  .sx-grid { grid-template-columns: 1fr; }
  .coll-item__head { flex-direction: column; align-items: flex-start; gap: 14px; }
}

/* index card hover: cursor-follow badge + entry-point fill sweep
   (same interaction as the home tiles; driven by initStoneCardFx) */
.sx-card { position: relative; overflow: hidden; }
.sx-card h3 { transition: color .3s ease .06s; }
.sx-card.fx-on:hover h3 { color: var(--bg); }
.sx-card h3, .sx-card__media { position: relative; z-index: 1; }
.sx-card .stone-card__badge { top: 50%; }