/* styles.css */
/* ======================
   Pulso Landing — UI orientada a conversión
   ====================== */
:root{
  --primary:#0f766e;
  --primary-600:#0d9488;
  --text:#0f172a;
  --muted:#475569;
  --bg:#f8fafc;
  --surface:#ffffff;
  --surface-alt:#f1f5f9;
  --border:#e2e8f0;
  --accent:#16a34a;
  --radius:12px;
  --gap:16px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--text);background:var(--bg);line-height:1.45;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}

/* Containers & Sections */
.container{width:100%;max-width:1100px;margin:0 auto;padding:0 16px}
.section{padding:32px 0}
.section h2{margin:0 0 8px 0;line-height:1.12}
.muted{color:var(--muted)}
.center{text-align:center}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 16px;border-radius:10px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-weight:700;min-height:46px;transition:transform .12s, box-shadow .12s, background .12s}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-600);border-color:var(--primary-600)}
.btn.outline{background:transparent;border:1.5px solid var(--text)}
.btn.outline:hover{background:var(--surface-alt)}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:8px}

/* Mini helper text */
.mini{font-size:12px;margin-top:6px}

/* Nav */
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.nav .links{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.nav a{color:var(--text)}
.nav .btn{min-height:40px}

/* Mobile toggle */
.nav-toggle{display:none;position:relative;width:40px;height:36px;border:1px solid var(--border);border-radius:10px;background:var(--surface);cursor:pointer}
.nav-toggle span{position:absolute;left:9px;right:9px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s,opacity .2s,top .2s}
.nav-toggle span:nth-child(1){top:11px}
.nav-toggle span:nth-child(2){top:17px}
.nav-toggle span:nth-child(3){top:23px}

/* Mobile overlay full width */
.mobile-nav{position:fixed;inset:0;background:rgba(0,0,0,.45);backdrop-filter:saturate(1.1) blur(2px);display:none;z-index:999}
.mobile-nav.open{display:block}
.mobile-sheet{position:absolute;inset:0;background:#fff;display:flex;flex-direction:column}
.mobile-head{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;border-bottom:1px solid var(--border)}
.mobile-head .close{border:1px solid var(--border);background:var(--surface-alt);border-radius:10px;padding:8px 10px;cursor:pointer}
.mobile-links{display:flex;flex-direction:column;gap:12px;padding:16px}
.mobile-link{padding:10px 6px;border-bottom:1px solid var(--border)}
.mobile-cta{margin-top:8px}
body.menu-open{overflow:hidden}

/* Hero */
.hero{background:linear-gradient(130deg, var(--primary) 0%, var(--primary-600) 60%, #10b981 120%);color:#fff;padding:24px 0}
.hero-inner{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:center}
.hero-copy h1{margin:0 0 6px 0;font-size:clamp(26px, 4.6vw, 40px);line-height:1.06}
.hero-copy p{margin:6px 0 10px 0;color:#e6fffb}
.roi-claim{margin:4px 0 0 0;opacity:.95}
.hero .kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:8px 0}
.kpi{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:10px;padding:10px}
.kpi b{display:block}
.kpi span{opacity:.9;font-size:13px}
.cta-row{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0}
.note{opacity:.9}
.trust{opacity:.95;margin:6px 0 0 0}

.hero-visual .phone-card{background:#fff;color:var(--text);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.2)}
.phone-head,.phone-foot{background:var(--surface-alt);border-bottom:1px solid var(--border);padding:10px}
.phone-foot{border-top:1px solid var(--border);border-bottom:0}
.phone-list{list-style:none;margin:0;padding:12px}
.phone-list li+li{margin-top:8px}
.up{color:var(--accent);font-weight:700}
.phone-card.compact .phone-list{padding:10px}
.phone-card.compact .phone-list li{font-size:14px}
.phone-actions{display:flex;gap:8px;padding:0 12px 12px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:6px 10px;font-size:12px}

/* Grids & Cards */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px}
.list{margin:0;padding-left:18px}
.list.tight li+li{margin-top:6px}

/* Badges */
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badges.large .badge{font-size:13px}
.badge{display:inline-block;border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:6px 10px}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.step{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:6px}
.step b{font-size:15px}

/* Table */
.table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden}
.table th,.table td{border-bottom:1px solid var(--border);padding:12px;text-align:left}
.table tr:last-child th,.table tr:last-child td{border-bottom:0}
.table th{width:220px;background:var(--surface-alt)}

/* Pricing */
.prices{background:var(--surface-alt)}
.pricing{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:12px}
.price-card{background:#fff;border:2px solid var(--border);border-radius:14px;padding:16px;position:relative}
.price-card.highlight{border-color:var(--primary)}
.price{font-size:26px;font-weight:800;margin:6px 0}
.price-note{font-size:12px;color:var(--muted);margin-top:6px}
.price-sub{margin:0 0 6px 0}
.flag{position:absolute;top:10px;background:var(--surface-alt);border:1px solid var(--border);border-radius:999px;padding:4px 10px;font-size:12px}
.flag-left{left:10px}
.flag-right{right:10px}
.flag.solid{background:var(--primary);border-color:var(--primary);color:#fff}

/* ROI */
.roi{border:2px solid var(--border)}
.roi-head{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:6px}
.pill{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--surface);border-radius:999px;padding:6px 10px;font-size:12px}
.pill-save{border-color:rgba(22,163,74,.25);background:rgba(22,163,74,.08);color:#065f46}
.roi-form{display:grid;gap:10px;max-width:720px}
.roi-form input{padding:10px;border:1px solid var(--border);border-radius:10px;background:#fff}
.roi-row{display:flex;gap:8px;align-items:center}
.currency{width:64px;text-align:center}
.roi-result{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.roi-sub{font-size:12px;margin-top:2px}
.roi-result2{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:4px}
.roi-kpi{font-size:22px;font-weight:800}

/* ROI Advanced */
.roi-advanced{margin-top:8px}
.roi-advanced summary{cursor:pointer;font-weight:700}
.roi-adv-grid{display:grid;grid-template-columns:1fr;gap:10px;margin-top:8px}

/* Samples */
.sample .csv-card{border:1px dashed var(--border);border-radius:10px;padding:10px;background:#fff}
.csv-head{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,"Liberation Mono",monospace;font-size:12px;color:var(--muted);margin-bottom:6px}
.csv-row{font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,"Liberation Mono",monospace;font-size:13px}

/* FAQ */
.faq details{background:#fff;border:1px solid var(--border);border-radius:10px;padding:10px}
.faq details+details{margin-top:8px}
.faq summary{cursor:pointer;font-weight:700}

/* Form */
.form{display:grid;gap:10px;max-width:520px}
.form input,.form select,.form textarea{padding:12px;border:1px solid var(--border);border-radius:10px;background:#fff}
.form button{cursor:pointer}

/* Sticky CTA */
.sticky-cta{position:sticky;bottom:0;border-top:1px solid var(--border);background:#ffffffcc;backdrop-filter:saturate(1.2) blur(6px);padding:10px 0;transition:transform .2s ease}
.sticky-cta .inner{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.sticky-cta.hidden{transform:translateY(120%)}

/* Footer */
.footer{padding:24px 0;border-top:1px solid var(--border)}
.footer .cols{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* Responsive */
@media (max-width:900px){
  .nav-desktop{display:none !important;}
  .nav-toggle{display:inline-block;}
  .hero-inner{grid-template-columns:1fr}
  .hero-copy,.hero .cta-row{text-align:center}
  .cta-row{justify-content:center}
  .hero .kpis{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .grid-2{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .pricing{grid-template-columns:1fr}
  .roi-result,.roi-result2{grid-template-columns:1fr 1fr}
  .footer .cols{grid-template-columns:1fr}
}