:root{
    --navy:#0E1B2B; --navy2:#15243A;
    --teal:#1C9DD9;      /* celeste para fondos claros */
    --teal-d:#137AAE;    /* teal oscuro: hover, activos */
    --teal-soft:#6CC9F2; /* celeste para fondos oscuros */
    --ink:#13202F; --muted:#5b6472; --line:#e4ebf2;
    --bg:#ffffff; --bg-soft:#f5f8fc; --mint:#e7f4fb; --amber:#f0a818;
    --radius:16px; --radius-sm:10px; --maxw:1140px;
    --shadow:0 10px 30px rgba(31,42,68,.08); --shadow-lg:0 24px 60px rgba(31,42,68,.14);
  }
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
  h1,h2,h3,h4,.font-display{font-family:'Space Grotesk','Inter',sans-serif;line-height:1.15;color:var(--navy)}
  a{color:inherit;text-decoration:none}
  img,svg{max-width:100%;display:block}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
  .sec{padding:88px 0}
  .eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin-bottom:14px}
  .lead{color:var(--muted);font-size:1.12rem;max-width:620px}
  .center{text-align:center}
  .center .lead{margin-left:auto;margin-right:auto}

  /* Buttons */
  .btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:1rem;
    padding:14px 26px;border-radius:999px;border:1.5px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
  .btn-primary{background:var(--teal);color:#fff;box-shadow:0 8px 22px rgba(28,157,217,.32)}
  .btn-primary:hover{background:var(--teal-d);transform:translateY(-2px)}
  .btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:#fff}
  .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
  .btn-outline{background:#fff;border-color:var(--line);color:var(--navy)}
  .btn-outline:hover{border-color:var(--teal);color:var(--teal)}
  .btn-wa{background:#25D366;color:#fff;box-shadow:0 8px 22px rgba(37,211,102,.32)}
  .btn-wa:hover{background:#1da851;transform:translateY(-2px)}

  /* Header */
  header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:70px}
  .logo{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.25rem;color:var(--navy)}
  .logo .mark{width:34px;height:34px;flex:none}
  .logo-full{height:46px;width:auto;display:block}
  .logo b{color:var(--teal)}
  .nav-links{display:flex;align-items:center;gap:28px}
  .nav-links a{font-weight:500;font-size:.97rem;color:var(--navy2)}
  .nav-links a:hover{color:var(--teal)}
  .nav-cta{display:flex;align-items:center;gap:14px}
  .menu-btn{display:none;background:none;border:none;cursor:pointer}

  /* Hero */
  .hero{position:relative;background:radial-gradient(120% 120% at 80% 0%,#173b5e 0%,var(--navy) 55%);color:#fff;overflow:hidden}
  .hero:after{content:"";position:absolute;inset:0;background:
    radial-gradient(40% 50% at 90% 80%,rgba(28,157,217,.30),transparent 70%);pointer-events:none}
  .hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:50px;align-items:center;padding-top:74px;padding-bottom:84px}
  .hero h1{color:#fff;font-size:3.05rem;letter-spacing:-.5px}
  .hero h1 .hl{color:var(--teal-soft)}
  .hero p{color:#cdd6e6;font-size:1.2rem;margin:22px 0 30px;max-width:540px}
  .hero-cta{display:flex;gap:14px;flex-wrap:wrap}
  .hero-badges{display:flex;gap:22px;margin-top:30px;flex-wrap:wrap}
  .hero-badges span{display:flex;align-items:center;gap:8px;font-size:.92rem;color:#aeb9cd}
  .hero-badges svg{flex:none}

  /* Hero diagram */
  .diagram{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:22px;padding:26px;box-shadow:var(--shadow-lg)}
  .diagram-title{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:#8fa0bd;margin-bottom:18px;font-weight:600}
  .node{display:flex;align-items:center;gap:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:14px 16px;margin-bottom:0}
  .node .ic{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;flex:none;background:rgba(108,201,242,.16)}
  .node h4{color:#fff;font-size:1rem;margin-bottom:2px}
  .node p{color:#9fabc2;font-size:.85rem;margin:0}
  .connector{height:26px;width:2px;background:linear-gradient(var(--teal-soft),rgba(108,201,242,.2));margin:7px 0 7px 36px;position:relative}
  .connector:after{content:"";position:absolute;left:-3px;bottom:-1px;width:8px;height:8px;border-right:2px solid var(--teal-soft);border-bottom:2px solid var(--teal-soft);transform:rotate(45deg)}
  .connector:before{content:"";position:absolute;left:-3px;top:0;width:8px;height:8px;border-radius:50%;background:#9bdcff;box-shadow:0 0 10px 2px rgba(108,201,242,.85);opacity:0;animation:flow 4.6s ease-in-out infinite}
  .connector:nth-child(3):before{animation-delay:.5s}
  .connector:nth-child(5):before{animation-delay:1.5s}
  .connector:nth-child(7):before{animation-delay:2.5s}
  .node{transition:border-color .4s,background .4s;transform-origin:center}
  .node:nth-child(2){animation:nodeGlow 4.6s ease-in-out infinite}
  .node:nth-child(4){animation:nodeGlow 4.6s ease-in-out infinite 1s}
  .node:nth-child(6){animation:nodeGlow 4.6s ease-in-out infinite 2s}
  .node:nth-child(8){animation:nodeGlow 4.6s ease-in-out infinite 3s}
  .pulse{width:9px;height:9px;border-radius:50%;background:var(--teal-soft);margin-left:auto;box-shadow:0 0 0 0 rgba(108,201,242,.6);animation:pulse 4.6s ease-in-out infinite}
  .node:nth-child(2) .pulse{animation-delay:0s}
  .node:nth-child(4) .pulse{animation-delay:1s}
  .node:nth-child(6) .pulse{animation-delay:2s}
  .node:nth-child(8) .pulse{animation-delay:3s}
  @keyframes pulse{0%{box-shadow:0 0 0 0 rgba(108,201,242,.55)}10%{box-shadow:0 0 0 9px rgba(108,201,242,0)}100%{box-shadow:0 0 0 0 rgba(108,201,242,0)}}
  @keyframes flow{0%{transform:translateY(-2px);opacity:0}4%{opacity:1}14%{transform:translateY(24px);opacity:1}18%{transform:translateY(24px);opacity:0}100%{transform:translateY(24px);opacity:0}}
  @keyframes nodeGlow{0%{border-color:rgba(255,255,255,.1);background:rgba(255,255,255,.07);transform:scale(1)}5%{border-color:rgba(108,201,242,.55);background:rgba(108,201,242,.12);transform:scale(1.022)}14%{border-color:rgba(255,255,255,.1);background:rgba(255,255,255,.07);transform:scale(1)}100%{border-color:rgba(255,255,255,.1);background:rgba(255,255,255,.07);transform:scale(1)}}
  @media (prefers-reduced-motion:reduce){.pulse,.connector:before,.node,.band-diagram .float{animation:none}}

  /* Trust */
  .trust{background:var(--navy2);color:#cdd6e6;text-align:center;padding:18px 0;font-weight:500}
  .trust b{color:#fff}

  /* Problem */
  .pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:36px}
  .pain{display:flex;gap:14px;align-items:flex-start;background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
  .pain .x{width:30px;height:30px;border-radius:8px;background:#fdecec;color:#d2453f;display:grid;place-items:center;flex:none;font-weight:700}
  .pain p{margin:0;color:var(--navy2);font-weight:500}

  /* Services */
  .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:42px}
  .card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:.2s}
  .card:hover{border-color:var(--teal);box-shadow:var(--shadow);transform:translateY(-4px)}
  .card .ic{width:54px;height:54px;border-radius:14px;display:grid;place-items:center;background:var(--mint);margin-bottom:18px}
  .card h3{font-size:1.22rem;margin-bottom:10px}
  .card p{color:var(--muted);font-size:.98rem;margin-bottom:16px}
  .card .more{color:var(--teal);font-weight:600;font-size:.95rem}

  /* Integration band */
  .band{background:linear-gradient(135deg,#0E2A45,#125E94);color:#fff;border-radius:24px;padding:54px 48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
  .band h2{color:#fff;font-size:2rem}
  .band p{color:#bfe0f4;font-size:1.1rem;margin-top:16px}
  .flow{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap}
  .band-diagram{width:100%;height:auto;max-width:520px;margin:0 auto;display:block}
  .band-diagram .float{animation:floaty 5s ease-in-out infinite;will-change:transform}
  .band-diagram .f2{animation-delay:1.2s}
  .band-diagram .f3{animation-delay:.6s}
  .band-diagram .f4{animation-delay:1.8s}
  @keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
  .chip{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:12px 14px;font-weight:600;font-size:.9rem;color:#fff;display:flex;align-items:center;gap:8px}
  .arrow{color:var(--teal-soft);font-size:1.3rem;font-weight:700}

  /* Why / pillars */
  .pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:42px}
  .pillar .n{font-family:'Space Grotesk';font-weight:700;color:var(--teal);font-size:1.7rem;margin-bottom:6px}
  .pillar h3{font-size:1.08rem;margin-bottom:8px}
  .pillar p{color:var(--muted);font-size:.94rem}

  /* Process */
  .steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;margin-top:46px;position:relative}
  .steps:before{content:"";position:absolute;top:24px;left:12.5%;right:12.5%;height:2px;background:var(--teal);opacity:.45;border-radius:2px}
  .step{position:relative;z-index:1;text-align:center}
  .step-head{height:50px;margin-bottom:18px}
  .step .b{width:50px;height:50px;border-radius:50%;background:var(--teal);color:#fff;display:grid;place-items:center;font-family:'Space Grotesk';font-weight:700;font-size:1.2rem;margin:0 auto}
  .step h3{font-size:1.06rem;margin-bottom:6px}
  .step p{color:var(--muted);font-size:.93rem;padding:0 14px}

  /* Pricing */
  .plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
  .plan{border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;background:#fff;position:relative;display:flex;flex-direction:column}
  .plan.feat{border-color:var(--teal);box-shadow:var(--shadow);transform:scale(1.03)}
  .plan .tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--teal);color:#fff;font-size:.75rem;font-weight:700;padding:5px 14px;border-radius:999px;letter-spacing:.04em}
  .plan h3{font-size:1.3rem;margin-bottom:6px}
  .plan .who{color:var(--muted);font-size:.92rem;min-height:42px;margin-bottom:18px}
  .plan .price{font-family:'Space Grotesk';font-weight:700;color:var(--navy);font-size:1.5rem}
  .plan .price small{display:block;font-family:'Inter';font-weight:500;color:var(--muted);font-size:.82rem;margin-top:2px}
  .plan .mo{margin:14px 0 20px;padding-top:14px;border-top:1px solid var(--line);color:var(--navy2);font-weight:600}
  .plan .mo span{color:var(--muted);font-weight:400;font-size:.88rem}
  .plan .btn{justify-content:center;margin-top:auto}
  .price-note{text-align:center;color:var(--muted);font-size:.92rem;margin-top:24px}

  /* Calculator */
  .calc{background:var(--navy);border-radius:24px;color:#fff;padding:48px 44px;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;overflow:hidden}
  .calc h2{color:#fff;font-size:2rem}
  .calc p.sub{color:#aeb9cd;margin-top:14px;font-size:1.05rem}
  .calc .field{margin-bottom:18px}
  .calc label{display:block;font-size:.9rem;color:#cdd6e6;margin-bottom:8px;font-weight:500}
  .calc input[type=range]{width:100%;accent-color:var(--teal-soft)}
  .calc .rowval{display:flex;justify-content:space-between;align-items:baseline}
  .calc .rowval b{font-family:'Space Grotesk';font-size:1.15rem;color:var(--teal-soft)}
  .result{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:28px}
  .result .big{font-family:'Space Grotesk';font-weight:700;font-size:2.6rem;color:var(--teal-soft);line-height:1}
  .result .lbl{color:#aeb9cd;font-size:.9rem;margin-top:6px}
  .result hr{border:none;border-top:1px solid rgba(255,255,255,.12);margin:20px 0}
  .result .small{color:#8fa0bd;font-size:.82rem;margin-top:14px}

  /* About */
  .about{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:center}
  .about .photo{aspect-ratio:1;border-radius:24px;background:linear-gradient(135deg,var(--mint),#cfe6f5);display:grid;place-items:center;color:var(--teal);border:1px solid var(--line);overflow:hidden}
  .about .photo img{width:100%;height:100%;object-fit:cover;display:block}
  .about h2{font-size:2rem;margin-bottom:18px}
  .about p{color:var(--navy2);margin-bottom:14px}

  /* Final CTA */
  .final{background:linear-gradient(120deg,var(--teal-d),var(--teal));color:#fff;text-align:center;border-radius:24px;padding:60px 40px}
  .final h2{color:#fff;font-size:2.2rem}
  .final p{color:#e4f4fd;font-size:1.15rem;margin:14px auto 28px;max-width:540px}
  .final .btn-primary{background:#fff;color:var(--teal-d);box-shadow:0 8px 22px rgba(0,0,0,.18)}
  .final .btn-primary:hover{background:#eef8ff}

  /* Footer */
  footer{background:var(--navy);color:#aeb9cd;padding:62px 0 26px}
  .fcols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px}
  footer h4{color:#fff;font-size:.95rem;margin-bottom:16px;letter-spacing:.02em}
  footer a{color:#aeb9cd;font-size:.95rem;display:block;margin-bottom:10px}
  footer a:hover{color:var(--teal-soft)}
  .fbrand .logo{color:#fff;margin-bottom:14px}
  .fbrand p{font-size:.95rem;max-width:280px}
  .fsocial{display:flex;gap:12px;margin-top:16px}
  .fsocial a{width:38px;height:38px;border-radius:10px;background:rgba(255,255,255,.08);display:grid;place-items:center;margin:0}
  .fsocial a:hover{background:var(--teal)}
  .social-row a[aria-label="WhatsApp"]{background:#25D366}
  .social-row a[aria-label="WhatsApp"]:hover{background:#1da851}
  .fbottom{border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#7e8aa0}

  /* WhatsApp float */
  .wa{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:#25D366;display:grid;place-items:center;box-shadow:0 8px 24px rgba(37,211,102,.45);z-index:60;transition:.2s}
  .wa:hover{transform:scale(1.08)}

  /* Responsive */
  @media(max-width:900px){
    .hero .wrap{grid-template-columns:1fr;gap:36px;padding-top:48px;padding-bottom:56px}
    .hero h1{font-size:2.3rem}
    .cards,.pillars,.steps,.plans{grid-template-columns:1fr}
    .band,.calc,.about{grid-template-columns:1fr;gap:28px;padding:36px 26px}
    .pain-grid{grid-template-columns:1fr}
    .fcols{grid-template-columns:1fr 1fr;gap:26px}
    .steps:before{display:none}
    .nav-links{display:none}
    .menu-btn{display:block}
    .nav-links.open{display:flex;position:absolute;top:70px;left:0;right:0;flex-direction:column;background:#fff;padding:18px 22px;gap:16px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
    .plan.feat{transform:none}
    .sec{padding:62px 0}
  }
  @media(max-width:560px){
    .hero h1{font-size:1.95rem}
    .fcols{grid-template-columns:1fr}
    .hero-cta .btn{flex:1;justify-content:center}
  }

/* ===== Páginas internas ===== */
.pagehead{background:radial-gradient(120% 120% at 80% 0%,#173b5e,var(--navy));color:#fff;padding:66px 0 58px;text-align:center;position:relative;overflow:hidden}
.pagehead:after{content:"";position:absolute;inset:0;background:radial-gradient(40% 60% at 90% 90%,rgba(28,157,217,.28),transparent 70%);pointer-events:none}
.pagehead .wrap{position:relative;z-index:2}
.pagehead .eyebrow{color:var(--teal-soft)}
.pagehead h1{color:#fff;font-size:2.6rem;max-width:820px;margin:6px auto 0;letter-spacing:-.5px}
.pagehead p{color:#cdd6e6;font-size:1.18rem;max-width:660px;margin:16px auto 0}
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px}
.checkitem{display:flex;gap:12px;align-items:flex-start;background:var(--bg-soft);border:1px solid var(--line);border-radius:12px;padding:15px 18px}
.checkitem svg{flex:none;margin-top:2px}
.checkitem p{margin:0;color:var(--navy2);font-weight:500}
.faq{max-width:760px;margin:26px auto 0}
.faq details{border:1px solid var(--line);border-radius:12px;padding:2px 20px;margin-bottom:12px;background:#fff}
.faq summary{cursor:pointer;font-weight:600;color:var(--navy);padding:16px 0;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--teal);font-weight:700}
.faq details[open] summary:after{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq p{color:var(--muted);padding:14px 0;margin:0}
.twocol{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.form{max-width:560px;margin:0 auto;display:grid;gap:14px}
.form input,.form textarea{width:100%;padding:13px 16px;border:1px solid var(--line);border-radius:12px;font-family:inherit;font-size:1rem;background:#fff}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--teal)}
.form .btn{justify-content:center}
.note{color:var(--muted);font-size:.9rem;text-align:center;margin-top:10px}
@media(max-width:900px){.checklist{grid-template-columns:1fr}.twocol{grid-template-columns:1fr;gap:26px}.pagehead h1{font-size:2rem}}

.social-row{display:flex;gap:12px;margin-top:12px}
.social-row a{width:44px;height:44px;border-radius:12px;background:var(--navy);display:grid;place-items:center;transition:.2s}
.social-row a:hover{background:var(--teal);transform:translateY(-2px)}

/* ===== Servicios (rich) ===== */
.ic-lg{width:62px;height:62px;border-radius:16px;background:var(--mint);display:grid;place-items:center;margin-bottom:18px}
.svc-tag{display:inline-block;font-family:'Space Grotesk';font-weight:700;color:var(--teal);font-size:.95rem;letter-spacing:.04em;margin-bottom:6px}
.statband{display:grid;grid-template-columns:repeat(4,1fr);background:var(--navy);border-radius:20px;overflow:hidden;margin-top:8px}
.statband > div{padding:26px 20px;text-align:center;border-right:1px solid rgba(255,255,255,.08)}
.statband > div:last-child{border-right:none}
.statband b{display:block;font-family:'Space Grotesk';color:var(--teal-soft);font-size:1.5rem;margin-bottom:4px}
.statband span{color:#aeb9cd;font-size:.92rem}
@media(max-width:760px){.statband{grid-template-columns:1fr 1fr}.statband > div:nth-child(2){border-right:none}}

/* ===== Ajustes responsive (navegación y grillas) ===== */
.cards.duo{grid-template-columns:repeat(2,minmax(0,1fr))}
@media(max-width:760px){.cards.duo{grid-template-columns:1fr}}
@media(max-width:900px){.twocol.rev>div:first-child{order:2}}
@media(max-width:560px){
  .nav-cta .btn{font-size:.82rem;padding:9px 13px}
  .statband{grid-template-columns:1fr}
  .statband > div{border-right:none;border-bottom:1px solid rgba(255,255,255,.08)}
  .pagehead h1{font-size:1.7rem}
  .band{padding:30px 22px}
}
@media(max-width:560px){.logo-full{height:34px}}
@media(max-width:900px){.steps{gap:38px}}
@media(max-width:560px){.btn{white-space:normal;max-width:100%}}
@media(max-width:560px){.nav-cta .btn{display:none}}

/* Confirmación de formulario */
.form-ok{background:var(--mint);border:1px solid #bfe0f4;border-radius:16px;padding:34px 26px;text-align:center}
.form-ok .ok-ic{width:58px;height:58px;border-radius:50%;background:var(--teal);display:grid;place-items:center;margin:0 auto 14px;box-shadow:0 8px 20px rgba(28,157,217,.3)}
.form-ok h3{color:var(--navy);font-size:1.35rem;margin-bottom:8px}
.form-ok p{color:var(--muted);margin:0}

/* FAQ */
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden}
.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-family:'Space Grotesk','Inter',sans-serif;font-weight:600;font-size:1.05rem;color:var(--navy);display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:1.5rem;font-weight:400;color:var(--teal);line-height:1;flex:none;transition:transform .2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--teal-d)}
.faq-item p{padding:0 22px 20px;color:var(--muted);margin:0}

/* Accesibilidad: foco visible por teclado */
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,[tabindex]:focus-visible{
  outline:3px solid var(--teal-soft);outline-offset:2px;border-radius:4px}
.btn:focus-visible{outline:3px solid var(--navy);outline-offset:3px}