/* 4. SECCIONES — estilos propios de cada bloque de la página. */
/* Encabezado */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(251,248,243,.94); backdrop-filter: blur(8px); border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s; }
.site-header.is-scrolled { border-color: var(--line); box-shadow: 0 4px 20px rgba(20,35,58,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 1rem; }
.brand { display: flex; align-items: center; gap: .7rem; text-decoration: none; }
.brand svg { width: 38px; height: 38px; }
.brand-text { display: flex; flex-direction: column; line-height: 1; }
.brand-name { font-family: var(--serif); font-size: 1.5rem; letter-spacing: .2em; font-weight: 600; }
.brand-sub { font-size: .62rem; letter-spacing: .42em; color: var(--gold-text); margin-top: .3rem; font-weight: 600; }
.site-nav { display: flex; align-items: center; gap: 1.6rem; }
.site-nav a:not(.btn) { text-decoration: none; font-size: .95rem; font-weight: 500; padding: .3rem 0; border-bottom: 2px solid transparent; }
.site-nav a:not(.btn):hover { border-color: var(--gold); }
.nav-toggle { display: none; background: none; border: 2px solid var(--navy); border-radius: 10px; width: 44px; height: 44px; cursor: pointer; color: var(--navy); }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 20px; height: 2px; background: currentColor; margin: auto; position: relative; content: ""; }
.nav-toggle span::before { position: absolute; top: -6px; left: 0; }
.nav-toggle span::after { position: absolute; top: 6px; left: 0; }
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav { position: absolute; top: 72px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: var(--paper); border-bottom: 1px solid var(--line); padding: .5rem 1rem 1.2rem; display: none; }
  .site-nav.is-open { display: flex; }
  .site-nav a:not(.btn) { padding: .9rem 0; border-bottom: 1px solid var(--line); }
  .site-nav .btn { margin-top: 1rem; }
}

/* Hero */
.hero { position: relative; overflow: hidden; background: linear-gradient(180deg, var(--cream), var(--paper)); padding: clamp(3rem, 7vw, 6rem) 0 clamp(3.5rem, 8vw, 6.5rem); }
.hero::before { content: ""; position: absolute; right: -10%; top: -20%; width: 70%; height: 140%; background: radial-gradient(ellipse at 70% 30%, rgba(243,217,160,.75), rgba(243,217,160,0) 62%); pointer-events: none; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center; }
.hero h1 em { font-style: normal; color: var(--gold-text); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin: 2rem 0 1.5rem; }
.hero-note { font-size: .92rem; color: var(--muted); }
.hero-card { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 1.6rem; box-shadow: 0 24px 60px rgba(20,35,58,.12); }
.hero-card h2 { font-size: .8rem; font-family: var(--sans); letter-spacing: .16em; text-transform: uppercase; color: var(--gold-text); margin-bottom: 1rem; }
.compare { display: grid; gap: 1rem; }
.compare > div { border-radius: 12px; padding: 1rem 1.1rem; }
.compare .before { background: var(--cream); }
.compare .after { background: var(--navy); color: #eef1f6; }
.compare strong { display: block; font-family: var(--serif); font-size: 1.1rem; margin-bottom: .4rem; }
.compare .after strong { color: var(--light); }
.compare ul { margin: 0; padding-left: 1.1rem; font-size: .95rem; line-height: 1.5; }
.compare li { margin-bottom: .25rem; }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; } }

/* Transformación */
.transform-item { border-top: 1px solid rgba(255,255,255,.18); padding-top: 1.1rem; }
.transform-item h3 { font-size: 1.15rem; color: var(--light); margin-bottom: .3rem; }
.transform-item p { color: #c9d2e0; margin: 0; font-size: 1rem; }
.diff { margin-top: 3rem; padding: 1.6rem 1.8rem; border: 1px solid rgba(243,217,160,.4); border-radius: var(--radius); }
.diff p { margin: 0; font-size: 1.1rem; }
.diff strong { color: var(--light); }

/* Servicios */
.service { position: relative; }
.service-num { font-family: var(--serif); font-size: 2.6rem; color: var(--gold); line-height: 1; margin-bottom: .6rem; }
.service ul { padding-left: 1.1rem; margin: .8rem 0; color: var(--muted); font-size: .98rem; }
.service .tag { display: inline-block; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--gold-text); font-weight: 600; margin-top: .4rem; }

/* Método */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; counter-reset: s; list-style: none; padding: 0; margin: 0; }
.step { position: relative; padding-top: 1.6rem; border-top: 2px solid var(--gold); }
.step::before { counter-increment: s; content: "0" counter(s); font-family: var(--serif); font-size: 1rem; color: var(--gold-text); position: absolute; top: -.85rem; left: 0; background: var(--paper); padding-right: .6rem; font-weight: 600; }
.section--cream .step::before { background: var(--cream); }
.step h3 { margin-bottom: .4rem; }
.step p { color: var(--muted); font-size: 1rem; }
@media (max-width: 900px) { .steps { grid-template-columns: 1fr; } }

/* Caso */
.case-grid { display: grid; grid-template-columns: minmax(0, 52rem); gap: 3rem; align-items: start; }
.timeline { list-style: none; padding: 0; margin: 2rem 0 0; border-left: 2px solid rgba(243,217,160,.45); }
.timeline li { position: relative; padding: 0 0 1.6rem 1.6rem; }
.timeline li::before { content: ""; position: absolute; left: -7px; top: .5rem; width: 12px; height: 12px; border-radius: 50%; background: var(--light); }
.timeline h3 { font-size: 1.15rem; color: var(--light); margin-bottom: .2rem; }
.timeline p { margin: 0; color: #c9d2e0; }
.case-side { display: grid; gap: 1rem; }
.disclaimer { font-size: .88rem; color: #aab6c8; margin-top: 1.5rem; }
@media (max-width: 900px) { .case-grid { grid-template-columns: 1fr; } }

/* Footer, WhatsApp, CTA móvil */
.site-footer { background: #0d1828; color: #b8c3d4; padding: 3rem 0 6rem; font-size: .95rem; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 2rem; }
.site-footer a { color: #e6ebf3; }
.site-footer .brand-name { color: #fff; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-legal { margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.12); font-size: .85rem; }
.wa-float { position: fixed; right: 16px; bottom: 16px; z-index: 60; display: flex; align-items: center; gap: .5rem; background: #1f8f55; color: #fff; text-decoration: none; padding: .8rem 1.1rem; border-radius: 999px; font-weight: 600; box-shadow: 0 8px 24px rgba(0,0,0,.25); transition: transform .2s; }
.wa-float:hover { transform: translateY(-2px); }
.wa-float svg { width: 24px; height: 24px; fill: currentColor; }
@media (max-width: 600px) { .wa-float span { display: none; } .wa-float { padding: .9rem; } }

.footer-logo { filter: invert(1) hue-rotate(180deg); }
.tagline { font-family: var(--serif); color: var(--gold-text); }
.narrow-text { max-width: 720px; }