:root {
  --primary: #b7657b;
  --primary-soft: #f5eaed;
  --soft: #fff3f5;
  --accent: #d7a86e;
  --ink: #2d1b22;
  --surface: #ffffff;
  --muted: color-mix(in srgb, var(--ink), white 38%);
  --line: color-mix(in srgb, var(--primary), white 78%);
  --shadow: 0 28px 80px rgba(0, 0, 0, .14);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 10%, color-mix(in srgb, var(--accent), transparent 80%), transparent 32rem),
    linear-gradient(135deg, var(--surface), var(--soft));
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { width: 100%; display: block; object-fit: cover; }
button, input, textarea, select { font: inherit; }
.section-pad { padding: clamp(4.5rem, 8vw, 8rem) clamp(1.1rem, 5vw, 5rem); }
.site-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1rem, 5vw, 4rem);
  backdrop-filter: blur(24px);
  background: color-mix(in srgb, var(--surface), transparent 18%);
  border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 20%);
}
.brand { display: inline-flex; align-items: center; gap: .75rem; font-weight: 900; letter-spacing: -.03em; }
.brand-mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 14px; color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--primary), transparent 70%);
}
.main-nav { display: flex; align-items: center; gap: 1.1rem; font-size: .94rem; color: var(--muted); }
.main-nav a:hover { color: var(--primary); }
.nav-cta { padding: .75rem 1rem; border-radius: 999px; color: white !important; background: var(--ink); }
.menu-toggle { display: none; border: 0; background: transparent; padding: .5rem; }
.menu-toggle span { display: block; width: 24px; height: 2px; margin: 5px 0; background: var(--ink); }
.hero {
  min-height: 86vh; display: grid; grid-template-columns: minmax(0, .92fr) minmax(320px, 1.08fr);
  align-items: center; gap: clamp(2rem, 5vw, 5rem); padding-top: clamp(3rem, 8vw, 6rem);
}
.eyebrow { text-transform: uppercase; letter-spacing: .16em; font-weight: 850; color: var(--primary); font-size: .78rem; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(3rem, 8vw, 6.9rem); line-height: .88; letter-spacing: -.08em; margin-bottom: 1.3rem; }
h2 { font-size: clamp(2rem, 5vw, 4.6rem); line-height: .94; letter-spacing: -.06em; margin-bottom: 1rem; }
h3 { font-size: 1.25rem; letter-spacing: -.03em; }
.hero-text, .section-heading p, .split-copy p, .solution-copy p, .showcase-copy p, .contact-copy p { color: var(--muted); font-size: clamp(1rem, 1.6vw, 1.18rem); line-height: 1.75; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 48px; padding: .9rem 1.25rem; border-radius: 999px; border: 1px solid transparent;
  font-weight: 850; cursor: pointer; transition: transform .25s ease, box-shadow .25s ease, background .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--accent)); color: white; box-shadow: 0 18px 38px color-mix(in srgb, var(--primary), transparent 70%); }
.btn-secondary { background: color-mix(in srgb, var(--surface), transparent 5%); border-color: var(--line); color: var(--ink); }
.hero-media { position: relative; }
.hero-media img { aspect-ratio: 4 / 3; border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.floating-card {
  position: absolute; left: -1.4rem; bottom: 2rem; width: min(280px, 80%);
  padding: 1rem; border-radius: 22px; background: rgba(255,255,255,.72); backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,.52); box-shadow: var(--shadow);
}
.floating-card strong, .floating-card span { display:block; }
.floating-card span { color: var(--muted); font-size: .88rem; margin-top:.25rem; }
.stats-band {
  width: min(1120px, calc(100% - 2rem)); margin: -2rem auto 0; padding: 1rem;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  border-radius: 28px; background: color-mix(in srgb, var(--surface), transparent 8%); box-shadow: var(--shadow);
}
.stats-band article { padding: 1.2rem; border-radius: 20px; background: var(--primary-soft); }
.stats-band strong { display:block; font-size: clamp(1.7rem, 4vw, 3rem); letter-spacing:-.06em; color: var(--primary); }
.stats-band span { color: var(--muted); }
.split-section { display: grid; grid-template-columns: .4fr 1.1fr .7fr; gap: 2rem; align-items: start; }
.section-label { color: var(--primary); font-weight: 900; writing-mode: vertical-rl; text-transform: uppercase; letter-spacing: .2em; }
.insight-card, .service-card, .step, .plan, .quote, .faq-item, .lead-form {
  background: color-mix(in srgb, var(--surface), transparent 4%); border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: 0 18px 50px rgba(0,0,0,.07);
}
.insight-card { padding: 1.5rem; }
.insight-card span { color: var(--primary); font-weight: 900; }
.insight-card p { color: var(--muted); line-height: 1.7; }
.solution, .showcase, .contact { display: grid; grid-template-columns: .95fr 1.05fr; gap: clamp(2rem, 5vw, 5rem); align-items: center; }
.visual-stack { position: relative; min-height: 520px; }
.visual-stack img { position: absolute; border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.visual-stack img:first-child { width: 72%; height: 72%; left: 0; top: 0; }
.visual-stack img:last-child { width: 62%; height: 58%; right: 0; bottom: 0; border: 10px solid var(--surface); }
.benefit-list { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: .9rem; }
.benefit-list li { display: grid; grid-template-columns: .75fr 1.25fr; gap: 1rem; padding: 1rem; border-radius: 18px; background: var(--primary-soft); }
.benefit-list strong { color: var(--primary); }
.benefit-list span { color: var(--muted); }
.section-heading { max-width: 850px; margin: 0 auto 2.4rem; text-align: center; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.service-card { padding: 1.25rem; min-height: 210px; transition: transform .25s ease, border-color .25s ease; }
.service-card:hover { transform: translateY(-6px); border-color: color-mix(in srgb, var(--primary), white 35%); }
.service-card span { display:inline-grid; place-items:center; width:48px; height:48px; border-radius:16px; background: var(--primary-soft); color: var(--primary); font-weight:900; }
.service-card p, .step p, .plan p, .quote p { color: var(--muted); line-height: 1.65; }
.showcase-card img { aspect-ratio: 1.15; border-radius: var(--radius-xl); box-shadow: var(--shadow); }
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.step { padding: 1.2rem; position: relative; overflow: hidden; }
.step::before { content:""; position:absolute; inset:auto -20% -30% auto; width:120px; height:120px; border-radius:50%; background: color-mix(in srgb, var(--accent), transparent 72%); }
.step small { color: var(--primary); font-weight: 900; text-transform: uppercase; letter-spacing: .12em; }
.plans-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; align-items: stretch; }
.plan { padding: 1.4rem; display:flex; flex-direction:column; }
.plan.featured { background: linear-gradient(145deg, var(--ink), var(--primary)); color: white; transform: translateY(-14px); }
.plan.featured p, .plan.featured .plan-tag { color: rgba(255,255,255,.78); }
.plan-tag { color: var(--primary); font-size:.78rem; font-weight:900; text-transform:uppercase; letter-spacing:.13em; }
.price { font-size: 2.3rem; color: var(--primary); font-weight: 950; letter-spacing: -.06em; margin: .6rem 0; }
.plan.featured .price { color:white; }
.btn-plan { margin-top: auto; background: var(--primary-soft); color: var(--ink); }
.quotes-grid { display:grid; grid-template-columns: repeat(3,1fr); gap:1rem; }
.quote { padding: 1.5rem; }
.quote strong { color: var(--primary); }
.faq-list { width:min(900px,100%); margin:0 auto; display:grid; gap:.75rem; }
.faq-item { overflow:hidden; }
.faq-item button { width:100%; border:0; background:transparent; display:flex; align-items:center; justify-content:space-between; padding:1.2rem; cursor:pointer; color:var(--ink); font-weight:900; text-align:left; }
.faq-item p { max-height:0; margin:0; overflow:hidden; padding:0 1.2rem; color:var(--muted); line-height:1.65; transition:max-height .25s ease, padding .25s ease; }
.faq-item.active p { max-height:170px; padding:0 1.2rem 1.2rem; }
.lead-form { padding: 1.3rem; display:grid; gap:1rem; }
.lead-form label { display:grid; gap:.45rem; font-weight:800; color:var(--ink); }
.lead-form input, .lead-form select, .lead-form textarea { width:100%; border:1px solid var(--line); border-radius:16px; padding: .9rem 1rem; background: color-mix(in srgb, var(--surface), transparent 2%); color:var(--ink); outline:none; }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { border-color: var(--primary); box-shadow:0 0 0 4px color-mix(in srgb, var(--primary), transparent 84%); }
.form-status { margin:0; color:var(--primary); font-weight:800; }
.final-cta { width:min(1100px, calc(100% - 2rem)); margin: 0 auto 4rem; text-align:center; padding: clamp(2.2rem, 6vw, 5rem); border-radius: 38px; color:white; background: linear-gradient(135deg, var(--ink), var(--primary)); box-shadow: var(--shadow); }
.final-cta .eyebrow { color: color-mix(in srgb, var(--accent), white 20%); }
.final-cta h2 { max-width: 820px; margin-left:auto; margin-right:auto; }
.site-footer { padding: 2rem clamp(1rem, 5vw, 4rem); display:flex; justify-content:space-between; gap:1rem; color:var(--muted); border-top:1px solid var(--line); }
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .12s; }

/* Variantes visuales por estructura */
.layout-luxury-editorial .hero { grid-template-columns: 1.08fr .92fr; }
.layout-luxury-editorial h1 { font-family: Georgia, serif; font-weight: 500; }
.layout-neo-dashboard, .layout-surveillance-tech, .layout-conversion-market { background: radial-gradient(circle at 80% 0%, color-mix(in srgb, var(--accent), transparent 65%), transparent 30rem), var(--ink); color: var(--surface); }
.layout-neo-dashboard .site-header, .layout-surveillance-tech .site-header, .layout-conversion-market .site-header { background: color-mix(in srgb, var(--ink), transparent 12%); border-color: color-mix(in srgb, var(--surface), transparent 86%); }
.layout-neo-dashboard .main-nav, .layout-surveillance-tech .main-nav, .layout-conversion-market .main-nav, .layout-neo-dashboard .hero-text, .layout-surveillance-tech .hero-text, .layout-conversion-market .hero-text { color: rgba(255,255,255,.72); }
.layout-neo-dashboard .service-card, .layout-surveillance-tech .service-card, .layout-conversion-market .service-card, .layout-neo-dashboard .plan, .layout-surveillance-tech .plan, .layout-conversion-market .plan, .layout-neo-dashboard .quote, .layout-surveillance-tech .quote, .layout-conversion-market .quote, .layout-neo-dashboard .faq-item, .layout-surveillance-tech .faq-item, .layout-conversion-market .faq-item, .layout-neo-dashboard .lead-form, .layout-surveillance-tech .lead-form, .layout-conversion-market .lead-form { background: color-mix(in srgb, var(--surface), transparent 88%); border-color: rgba(255,255,255,.13); color: var(--surface); }
.layout-neo-dashboard .service-card p, .layout-surveillance-tech .service-card p, .layout-conversion-market .service-card p, .layout-neo-dashboard .section-heading p, .layout-surveillance-tech .section-heading p, .layout-conversion-market .section-heading p, .layout-neo-dashboard .quote p, .layout-surveillance-tech .quote p, .layout-conversion-market .quote p { color: rgba(255,255,255,.68); }
.layout-bold-portfolio .hero { grid-template-columns: .82fr 1.18fr; }
.layout-bold-portfolio h1 { text-transform: uppercase; }
.layout-clean-service .hero-media img, .layout-thermal-flow .hero-media img { border-radius: 56px 8px 56px 8px; }
.layout-learning-grid .service-grid { grid-template-columns: repeat(2, 1fr); }
.layout-learning-grid .service-card { min-height: 160px; }
.layout-executive-menu .service-grid .service-card:nth-child(2n), .layout-soft-luxury .service-grid .service-card:nth-child(2n) { transform: translateY(18px); }

@media (max-width: 960px) {
  .menu-toggle { display:block; }
  .main-nav { position: fixed; inset: 72px 1rem auto 1rem; display:none; flex-direction:column; align-items:stretch; padding:1rem; border-radius:24px; background:var(--surface); box-shadow:var(--shadow); }
  .main-nav.open { display:flex; }
  .hero, .solution, .showcase, .contact, .split-section { grid-template-columns: 1fr; }
  .section-label { writing-mode: horizontal-tb; }
  .service-grid, .plans-grid, .quotes-grid, .timeline, .stats-band { grid-template-columns: 1fr; }
  .visual-stack { min-height: 420px; }
  .plan.featured { transform:none; }
  .site-footer { flex-direction:column; }
  h1 { font-size: clamp(2.8rem, 15vw, 5rem); }
}

@media (max-width: 620px) {
  .section-pad { padding-inline: 1rem; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .floating-card { position: static; margin-top: 1rem; width:100%; }
  .visual-stack img:first-child, .visual-stack img:last-child { position: static; width:100%; height:auto; margin-bottom:1rem; }
  .visual-stack { min-height:auto; }
  .benefit-list li { grid-template-columns: 1fr; }
}

/* Ajustes extra para variantes dark premium */
.layout-neo-dashboard .faq-item button,
.layout-surveillance-tech .faq-item button,
.layout-conversion-market .faq-item button,
.layout-neo-dashboard .step h3,
.layout-surveillance-tech .step h3,
.layout-conversion-market .step h3,
.layout-neo-dashboard .plan h3,
.layout-surveillance-tech .plan h3,
.layout-conversion-market .plan h3 { color: var(--surface); }

.layout-neo-dashboard .split-copy p,
.layout-surveillance-tech .split-copy p,
.layout-conversion-market .split-copy p,
.layout-neo-dashboard .solution-copy p,
.layout-surveillance-tech .solution-copy p,
.layout-conversion-market .solution-copy p,
.layout-neo-dashboard .showcase-copy p,
.layout-surveillance-tech .showcase-copy p,
.layout-conversion-market .showcase-copy p,
.layout-neo-dashboard .contact-copy p,
.layout-surveillance-tech .contact-copy p,
.layout-conversion-market .contact-copy p,
.layout-neo-dashboard .step p,
.layout-surveillance-tech .step p,
.layout-conversion-market .step p,
.layout-neo-dashboard .plan p,
.layout-surveillance-tech .plan p,
.layout-conversion-market .plan p,
.layout-neo-dashboard .faq-item p,
.layout-surveillance-tech .faq-item p,
.layout-conversion-market .faq-item p,
.layout-neo-dashboard .insight-card p,
.layout-surveillance-tech .insight-card p,
.layout-conversion-market .insight-card p { color: rgba(255,255,255,.72); }

.layout-neo-dashboard .insight-card,
.layout-surveillance-tech .insight-card,
.layout-conversion-market .insight-card,
.layout-neo-dashboard .stats-band,
.layout-surveillance-tech .stats-band,
.layout-conversion-market .stats-band { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.12); }

.layout-neo-dashboard .stats-band article,
.layout-surveillance-tech .stats-band article,
.layout-conversion-market .stats-band article,
.layout-neo-dashboard .benefit-list li,
.layout-surveillance-tech .benefit-list li,
.layout-conversion-market .benefit-list li { background: rgba(255,255,255,.08); }

.layout-neo-dashboard .benefit-list span,
.layout-surveillance-tech .benefit-list span,
.layout-conversion-market .benefit-list span,
.layout-neo-dashboard .stats-band span,
.layout-surveillance-tech .stats-band span,
.layout-conversion-market .stats-band span { color: rgba(255,255,255,.7); }

.layout-neo-dashboard .lead-form input,
.layout-neo-dashboard .lead-form select,
.layout-neo-dashboard .lead-form textarea,
.layout-surveillance-tech .lead-form input,
.layout-surveillance-tech .lead-form select,
.layout-surveillance-tech .lead-form textarea,
.layout-conversion-market .lead-form input,
.layout-conversion-market .lead-form select,
.layout-conversion-market .lead-form textarea { background: rgba(255,255,255,.94); color: var(--ink); }