/* ── sp-what override ── */
.sp-what-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.sp-what-box { margin-top: 2.5rem; }

/* ── Por qué Build ── */
.build-why { padding: 72px 5%; background: var(--bg2); border-top: 1px solid var(--border); }
.build-why-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.4rem; margin-top: 2.8rem; }
.build-why-card { background: #fff; border: 1px solid var(--border); border-radius: 12px; padding: 1.8rem 1.6rem; display: flex; flex-direction: column; gap: .7rem; transition: box-shadow .25s, transform .25s; }
.build-why-card:hover { box-shadow: 0 8px 28px rgba(0,0,0,.07); transform: translateY(-3px); }
.build-why-card .bwyc-ico { font-size: 1.8rem; color: var(--g2); }
.build-why-card .bwyc-ico::before { margin: 0 !important; font-size: 1.8rem; color: var(--g2); }
.build-why-card h3 { font-size: .95rem; font-weight: 700; color: var(--bk); margin: 0; }
.build-why-card p { font-size: .85rem; color: var(--muted); line-height: 1.7; margin: 0; }

/* ── Métricas ── */
.build-metrics { padding: 60px 5%; background: var(--bk); }
.build-metrics-inner { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 2rem; max-width: 900px; margin: 0 auto; text-align: center; }
.build-metric-item .bm-num { font-size: 2.4rem; font-weight: 800; color: var(--g); line-height: 1; }
.build-metric-item .bm-label { font-size: .82rem; color: rgba(255,255,255,.65); margin-top: .4rem; line-height: 1.4; }

/* ── Capacidades (4 productos) ── */
.build-products { padding: 72px 5%; background: #fff; }
.build-products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; margin-top: 2.8rem; max-width: 980px; margin-left: auto; margin-right: auto; }
.build-prod-card { display: flex; flex-direction: column; gap: .8rem; }
.build-prod-ico { font-size: 2rem; color: var(--g2); }
.build-prod-ico::before { margin: 0 !important; font-size: 2rem; color: var(--g2); }
.build-prod-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--bk); margin: 0; }
.build-prod-card p { font-size: .85rem; color: var(--muted); line-height: 1.75; margin: 0; }
.build-prod-tag { display: inline-block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--g2); background: rgba(123,191,62,.1); border-radius: 20px; padding: .2rem .7rem; width: fit-content; }

/* ── Cómo funciona ── */
.build-how { padding: 72px 5%; background: var(--bg2); border-top: 1px solid var(--border); }
.build-how-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 3rem; position: relative; }
.build-how-steps::before { content: ''; position: absolute; top: 28px; left: 16.5%; right: 16.5%; height: 2px; background: linear-gradient(90deg, var(--g), var(--o)); z-index: 0; }
.build-how-step { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 0 1.4rem; position: relative; z-index: 1; }
.build-how-step .bhs-num { width: 56px; height: 56px; border-radius: 50%; background: #fff; border: 2px solid var(--g); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; font-weight: 800; color: var(--g2); margin-bottom: 1rem; box-shadow: 0 0 0 4px var(--bg2); }
.build-how-step h4 { font-size: 1rem; font-weight: 700; color: var(--bk); margin-bottom: .4rem; }
.build-how-step p { font-size: .88rem; color: var(--muted); line-height: 1.6; }

/* ── Comparación ── */
.build-compare { padding: 72px 5%; background: #fff; }
.build-compare-table { max-width: 820px; margin: 2.5rem auto 0; border-radius: 12px; overflow: hidden; border: 1px solid var(--border); }
.build-compare-head { display: grid; grid-template-columns: 1.3fr 1fr 1fr; background: var(--bk); color: #fff; }
.build-compare-head div { padding: 1rem 1.2rem; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; }
.build-compare-head .col-old { color: var(--o); }
.build-compare-head .col-new { color: var(--g); }
.build-compare-row { display: grid; grid-template-columns: 1.3fr 1fr 1fr; border-top: 1px solid var(--border); }
.build-compare-row:nth-child(even) { background: var(--bg2); }
.build-compare-row div { padding: .9rem 1.2rem; font-size: .85rem; color: var(--txt); display: flex; align-items: center; gap: .5rem; }
.build-compare-row div:first-child { font-weight: 600; color: var(--bk); }
.build-compare-row .chk-no { color: var(--o); font-weight: 600; }
.build-compare-row .chk-yes { color: var(--g2); font-weight: 700; }

/* ── FAQ ── */
.build-faq { padding: 72px 5%; background: var(--bg2); border-top: 1px solid var(--border); }
.faq-list { max-width: 760px; margin: 2.5rem auto 0; display: flex; flex-direction: column; gap: .75rem; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.faq-q { padding: 1.2rem 1.4rem; font-size: .95rem; font-weight: 600; color: var(--bk); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem; user-select: none; }
.faq-q::after { content: '+'; font-size: 1.3rem; font-weight: 300; color: var(--g2); flex-shrink: 0; transition: transform .3s; }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .3s; padding: 0 1.4rem; font-size: .88rem; color: var(--muted); line-height: 1.75; }
.faq-item.open .faq-a { max-height: 300px; padding: 0 1.4rem 1.2rem; }

/* ── MOBILE ── */
@media (max-width: 768px) {
  .sp-hero { flex-direction: column; padding: 90px 5% 50px; min-height: unset; gap: 2rem; }
  .sp-hero-inner { max-width: 100%; }
  .sp-hero h1 { font-size: 1.8rem; }
  .sp-what-inner { grid-template-columns: 1fr !important; gap: 2rem; }
  .sp-what-box { margin-top: 0; }
  .build-why { padding: 48px 5%; }
  .build-why-grid { grid-template-columns: 1fr; gap: 1rem; }
  .build-metrics-inner { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
  .build-products { padding: 48px 5%; }
  .build-products-grid { grid-template-columns: 1fr; }
  .build-how { padding: 48px 5%; }
  .build-how-steps { grid-template-columns: 1fr; gap: 2rem; }
  .build-how-steps::before { display: none; }
  .build-compare { padding: 48px 5%; overflow-x: auto; }
  .build-compare-table { min-width: 560px; }
  .build-faq { padding: 48px 5%; }
  .build-why .centered,
  .build-how .centered,
  .build-compare .centered,
  .build-faq .centered { text-align: left; }
  .build-why .sec-title,
  .build-how .sec-title,
  .build-compare .sec-title,
  .build-faq .sec-title { font-size: 1.5rem; }
}
@media (max-width: 480px) {
  .build-metrics-inner { grid-template-columns: 1fr; }
  .build-compare-table { min-width: 480px; }
}