:root {
  --dark: #3a3335;
  --gold: #d8b93c;
  --cream: #fbf5f3;
  --gray: #c1c1c1;
  --text: #666;
  --radius: 20px;
  --head: 'Space Grotesk', system-ui, sans-serif;
  --serif: 'Libre Baskerville', Georgia, serif;
  --body: 'Open Sans', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body { font-family: var(--body); font-size: 15px; line-height: 1.7; color: var(--text); background: #fff; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--head); color: var(--dark); line-height: 1.2; font-weight: 600; }
h2 { font-size: clamp(30px, 4vw, 42px); margin-bottom: 48px; }
h2 em, h1 em { font-family: var(--serif); font-style: italic; font-weight: 400; }
.center { text-align: center; }

.container { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.section { padding: 100px 0; }
.dark { background: var(--dark); }
.dark h2 { color: #fff; }
.gray { background: var(--gray); }

.eyebrow { font-family: var(--head); font-size: 10px; font-weight: 600; letter-spacing: .5em; text-transform: uppercase; color: var(--dark); text-align: center; margin-bottom: 12px; }
.eyebrow.left { text-align: left; }
.eyebrow.gold { color: var(--gold); }
.eyebrow.light { color: #fff; }

.btn { display: inline-block; background: var(--gold); color: var(--dark); font-family: var(--head); font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; padding: 18px 36px; border-radius: 100px; transition: transform .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(216,185,60,.35); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; background: var(--cream); box-shadow: 0 1px 0 rgba(0,0,0,.06); }
.nav-inner { display: flex; align-items: center; gap: 32px; height: 64px; }
.nav-logo img { height: 34px; width: auto; }
.nav-links { display: flex; gap: 20px; }
.nav-links a { font-family: var(--head); font-size: 13px; font-weight: 600; color: var(--dark); }
.nav-links a:hover { color: var(--gold); }
.nav-toggle { display: none; margin-left: auto; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--dark); margin: 5px 0; transition: .2s; }

/* Hero */
.hero { padding: 160px 0 110px; background: linear-gradient(180deg, var(--dark) 0%, rgba(2,2,2,.53) 47%, #fff 100%), url('/assets/img/hero.jpg') center/cover; }
.hero h1 { font-size: clamp(56px, 9vw, 96px); color: #fff; font-weight: 700; margin-bottom: 20px; }
.hero-sub { font-family: var(--head); font-size: 22px; font-weight: 600; color: #fff; margin-bottom: 14px; }
.hero-claim { color: #fff; font-size: 15px; margin-bottom: 36px; }
.hero-claim em { font-family: var(--serif); }

.services { display: grid; grid-template-columns: 1fr 1fr 2.1fr; gap: 32px; margin-top: 56px; }
.service { position: relative; min-height: 360px; border-radius: 10px; overflow: hidden; padding: 24px 20px; display: flex; flex-direction: column; justify-content: flex-end; background: linear-gradient(180deg, rgba(255,255,255,0) 0%, #fff 100%), var(--bg) center/cover; box-shadow: 0 20px 40px rgba(0,0,0,.18); transition: transform .3s; }
.service:hover { transform: translateY(-4px); }
.service-wide { background: linear-gradient(180deg, rgba(255,255,255,0) 0%, #fff 100%), var(--bg) center bottom/cover; }
.service-icon { width: 30px; height: 30px; fill: #111; margin-bottom: 8px; }
.service h3 { font-size: 18px; margin-bottom: 8px; }
.service-wide h3 { font-size: 30px; }
.service p { font-size: 14px; color: var(--dark); line-height: 1.6; }
.service em { font-family: var(--serif); font-size: 13px; }

/* Steps */
.steps { list-style: none; display: grid; grid-template-columns: 1fr 1fr; grid-auto-flow: column; grid-template-rows: repeat(3, auto); gap: 32px 64px; }
.steps li { display: flex; gap: 22px; align-items: flex-start; }
.steps img { flex: none; margin-top: 4px; }
.steps h3 { font-size: 21px; margin-bottom: 8px; }
.steps p { font-size: 15px; }

/* About */
.about { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; margin-bottom: 80px; }
.about-title { text-align: center; }
.about-title h2 { margin-bottom: 0; }
.about-text { color: #fff; font-size: 15px; text-align: center; border-left: 3px solid var(--gold); padding-left: 24px; }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 60px; margin-bottom: 80px; }
.stat { background: #fff; border-radius: var(--radius); padding: 56px 28px; text-align: center; }
.stat strong { display: block; font-family: var(--head); font-size: 40px; font-weight: 600; color: var(--dark); margin-bottom: 16px; line-height: 1.1; }
.stat span { display: block; font-family: var(--head); font-size: 15px; font-weight: 600; color: var(--dark); line-height: 1.5; }
.stat-gray { background: var(--gray); }
.stat-gold { background: var(--gold); }

.projects { display: grid; grid-template-columns: repeat(4, 1fr); gap: 60px; margin: 0 -30px; }
.projects img { aspect-ratio: 400 / 516; object-fit: cover; width: 100%; border-radius: 20px; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
.projects figcaption { text-align: center; margin-top: 16px; }
.projects figcaption em { display: block; color: var(--gold); font-size: 15px; }
.projects figcaption span { font-size: 13px; color: #777; }

/* Testimonials */
.testimonials { display: grid; grid-template-columns: 1fr 1fr; gap: 56px 60px; }
.testimonials blockquote { border-radius: var(--radius); padding: 60px 56px 48px; min-height: 290px; text-align: center; display: flex; flex-direction: column; justify-content: center; background: linear-gradient(180deg, var(--dark) 0%, rgba(58,51,53,.79) 50%, rgba(255,255,255,0) 100%), var(--bg) center/cover; background-color: var(--gray); }
.testimonials p { font-family: var(--head); font-weight: 600; font-size: 18px; color: #fff; line-height: 1.5; margin-bottom: 28px; }
.testimonials cite { font-style: normal; font-size: 12px; color: #fff; }

/* FAQ */
.faq { display: grid; gap: 28px; }
.faq details { border: 2px solid rgba(255,255,255,.4); border-radius: 12px; transition: background .2s; }
.faq details[open] { background: var(--dark); border-color: var(--dark); }
.faq summary { list-style: none; cursor: pointer; font-family: var(--head); font-weight: 600; font-size: 20px; color: var(--dark); padding: 26px 64px 26px 26px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 26px; top: 50%; transform: translateY(-50%); font-size: 26px; font-weight: 700; }
.faq details[open] summary { color: #fff; }
.faq details[open] summary::after { content: '−'; }
.faq details p { padding: 0 26px 26px; color: #ddd; font-size: 14px; }
.faq details p a { color: var(--gold); text-decoration: underline; }

/* CTA */
.cta { padding: 110px 0 120px; text-align: center; background: linear-gradient(180deg, var(--dark) 0%, rgba(0,0,0,0) 100%), url('/assets/img/cta.jpg') center top/cover; }
.cta h2 { color: #fff; font-family: var(--serif); font-size: clamp(38px, 6vw, 72px); max-width: 780px; margin: 0 auto 48px; line-height: 1.35; }
.social { display: flex; justify-content: center; gap: 12px; margin-top: 64px; }
.social a { width: 52px; height: 52px; border-radius: 50%; background: var(--gold); display: grid; place-items: center; transition: transform .2s; }
.social a:hover { transform: scale(1.08); }
.social svg { width: 22px; height: 22px; fill: var(--dark); }

/* Footer */
.footer { background: linear-gradient(180deg, var(--dark) 0%, #000 100%); padding: 72px 0 32px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.footer h4 { color: #fff; font-size: 17px; margin-bottom: 28px; }
.footer a, .footer small { display: block; color: #fff; font-size: 14px; line-height: 2; }
.footer a:hover { color: var(--gold); }
.footer small { font-style: italic; color: #999; }
.footer .gold { color: var(--gold); }
.copy { text-align: center; color: #777; font-size: 12px; margin-top: 56px; }

/* Responsive */
@media (max-width: 980px) {
  .services { grid-template-columns: 1fr 1fr; }
  .service-wide { grid-column: 1 / -1; }
  .stats { gap: 24px; }
  .projects { grid-template-columns: repeat(2, 1fr); gap: 40px; margin: 0; }
  .testimonials { gap: 32px; }
}

@media (max-width: 760px) {
  .section { padding: 72px 0; }
  h2 { margin-bottom: 36px; }
  .nav-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--cream); box-shadow: 0 10px 20px rgba(0,0,0,.08); }
  .nav-links a { padding: 14px 20px; border-top: 1px solid rgba(0,0,0,.05); }
  .nav.open .nav-links { display: flex; }
  .nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .hero { padding: 100px 0 72px; }
  .services { grid-template-columns: 1fr; gap: 20px; }
  .service { min-height: 280px; }
  .service-wide h3 { font-size: 24px; }
  .steps { grid-template-columns: 1fr; grid-auto-flow: row; grid-template-rows: none; }
  .about { grid-template-columns: 1fr; gap: 32px; margin-bottom: 56px; }
  .stats { grid-template-columns: 1fr; margin-bottom: 56px; }
  .stat { padding: 40px 24px; }
  .projects { gap: 24px; }
  .testimonials { grid-template-columns: 1fr; }
  .testimonials blockquote { padding: 44px 28px; min-height: 240px; }
  .testimonials p { font-size: 16px; }
  .faq summary { font-size: 17px; padding: 20px 52px 20px 20px; }
  .faq summary::after { right: 20px; }
  .faq details p { padding: 0 20px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px 20px; }
}

/* Antes / después */
.ba-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px 24px; }
.ba-frame { position: relative; aspect-ratio: 2 / 3; border-radius: var(--radius); overflow: hidden; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.ba-frame img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.ba-before { clip-path: inset(0 calc(100% - var(--pos)) 0 0); }
.ba-frame::after { content: ''; position: absolute; top: 0; bottom: 0; left: var(--pos); width: 3px; margin-left: -1.5px; background: #fff; box-shadow: 0 0 8px rgba(0,0,0,.4); pointer-events: none; }
.ba-frame input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; cursor: ew-resize; touch-action: pan-y; }
.ba-tag { position: absolute; top: 12px; font-family: var(--head); font-size: 10px; font-weight: 700; letter-spacing: .15em; text-transform: uppercase; color: #fff; background: rgba(58,51,53,.75); padding: 4px 10px; border-radius: 100px; pointer-events: none; }
.ba-tag-l { left: 12px; }
.ba-tag-r { right: 12px; background: var(--gold); color: var(--dark); }
.ba figcaption { text-align: center; margin-top: 14px; }
.ba figcaption em { font-family: var(--serif); font-size: 14px; color: var(--dark); }
@media (max-width: 760px) { .ba-grid { grid-template-columns: 1fr 1fr; gap: 24px 14px; } .ba figcaption em { font-size: 12px; } }
.ba[hidden] { display: none; }
.ba-pager { display: flex; justify-content: center; align-items: center; gap: 20px; margin-top: 40px; }
.ba-pager[hidden] { display: none; }
.ba-pager button { width: 48px; height: 48px; border-radius: 50%; border: 0; background: var(--gold); color: var(--dark); font-size: 20px; font-weight: 700; cursor: pointer; transition: transform .2s; }
.ba-pager button:hover { transform: scale(1.08); }
.ba-page { font-family: var(--head); font-weight: 600; color: var(--dark); min-width: 48px; text-align: center; }