@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&display=swap');

:root{
  --paper:#ffffff;
  --surface:#eef7f2;
  --surface-strong:#e0f1e8;
  --ink:#1a1a2e;
  --ink-soft:#546e7a;
  --ink-faint:#7c8a92;
  --rule:#e0e6e2;
  --rule-soft:#eef2ef;
  --primary:#1f7a4d;
  --primary-strong:#145c39;
  --primary-soft:#e4f5ec;
  --grad: linear-gradient(135deg, #2f9d68 0%, #7dd9a0 100%);
  --shadow: 0 4px 32px rgba(0,0,0,.06);
  --radius: 20px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--paper); color:var(--ink-soft);
  font-family:'Montserrat', 'Helvetica Neue', sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{ font-family:'Montserrat', sans-serif; font-weight:800; color:var(--ink); line-height:1.15; letter-spacing:-.02em; text-wrap:balance; margin:0; }
p{ margin:0 0 1rem; max-width:62ch; }
a{ color:var(--primary); }
img{ max-width:100%; display:block; }
.mono{ font-family:'Montserrat', monospace; font-variant-numeric:tabular-nums; }
:focus-visible{ outline:3px solid var(--primary-strong); outline-offset:2px; border-radius:4px; }
.container{ max-width:1180px; margin:0 auto; padding:0 1.5rem; }
.visually-hidden{ position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }
.skip-link{ position:absolute; left:-999px; top:0; background:var(--ink); color:#fff; padding:.7rem 1.1rem; z-index:200; border-radius:0 0 8px 0; }
.skip-link:focus{ left:0; }

/* ---------- Header — calco exacto de delphosinnovation.com, medido con getComputedStyle en el sitio real:
   header 100px alto (bar padding 15px 0), fondo #fff sin borde, container 1340px con padding 20px,
   grid 2 columnas (izq=logo auto, der=flex-end), logo renderizado a 190px de ancho, enlaces
   Montserrat 15px/400, line-height 70px, padding 0 15px, color #000, hover verde de marca. ---------- */
header.site{
  position:sticky; top:0; z-index:100; background:#ffffff;
}
.nav-row{
  display:grid; grid-template-columns:auto 1fr; align-items:center; gap:20px;
  max-width:1340px; margin:0 auto; padding:15px 20px; min-height:70px;
}
.nav-left{ display:flex; align-items:center; }
.nav-right{ display:flex; align-items:center; justify-content:flex-end; gap:1.25rem; }
.brand{ display:flex; align-items:center; gap:.6rem; text-decoration:none; }
.brand img{ height:auto; width:190px; }
nav.main{ display:flex; align-items:center; }
nav.main a{
  color:#000000; text-decoration:none; font-weight:400; font-size:15px; font-family:'Montserrat', sans-serif;
  line-height:70px; padding:0 15px; letter-spacing:normal; text-transform:none;
  border-radius:4px; transition:color .2s linear, background-color .2s linear;
}
nav.main a:hover{ color:var(--primary); background-color:var(--surface); }
.btn{
  display:inline-flex; align-items:center; gap:.5rem; font-weight:600; font-size:.9rem;
  padding:13px 26px; border-radius:9px; text-decoration:none; border:2px solid transparent;
  font-family:'Montserrat', sans-serif; transition:transform .12s ease, box-shadow .12s ease;
}
.btn-primary{ background:var(--primary); color:#fff; }
.btn-primary:hover{ background:var(--primary-strong); }
.btn-ghost{ background:transparent; color:var(--primary-strong); border-color:var(--primary-soft); }
.btn-ghost:hover{ border-color:var(--primary); }
.btn-lg{ padding:1rem 1.7rem; font-size:1.02rem; }
.header-cta{ display:none; }
@media (min-width:760px){ .header-cta{ display:inline-flex; } }

/* ---------- Hero ---------- */
.hero{ padding:4.5rem 0 4rem; position:relative; overflow:hidden; }
.hero::before{
  content:""; position:absolute; top:-140px; right:-160px; width:520px; height:520px; border-radius:50%;
  background:var(--grad); opacity:.14; filter:blur(10px);
}
.hero-grid{ position:relative; display:grid; gap:3rem; align-items:center; grid-template-columns:1.15fr .85fr; }
@media (max-width:900px){ .hero-grid{ grid-template-columns:1fr; } }
.eyebrow{
  display:inline-flex; align-items:center; gap:.5rem; font-size:.78rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  color:var(--primary-strong); background:var(--primary-soft); padding:.4rem .8rem; border-radius:999px; margin-bottom:1.1rem;
}
.hero h1{ font-size:clamp(2rem,3.5vw,3.2rem); font-weight:800; line-height:1.1; letter-spacing:-.03em; margin-bottom:20px; max-width:16ch; }
.hero .lede{ font-size:1rem; color:var(--ink-soft); line-height:1.75; max-width:460px; margin-bottom:36px; }
.hero-ctas{ display:flex; gap:1rem; flex-wrap:wrap; margin-bottom:1.6rem; }
.hero-trust{ display:flex; gap:1.6rem; flex-wrap:wrap; font-size:.85rem; color:var(--ink-faint); }
.hero-trust strong{ color:var(--ink); }

.demo-card{
  background:var(--paper); border:1px solid var(--rule); border-radius:20px; box-shadow:var(--shadow); padding:1.4rem;
}
.demo-card .tab-row{ display:flex; gap:.5rem; margin-bottom:1rem; }
.demo-dot{ width:10px; height:10px; border-radius:50%; background:var(--rule); }
.demo-compare{ display:grid; grid-template-columns:1fr 1fr; gap:.9rem; }
.demo-panel{ border-radius:12px; padding:.9rem; font-size:.8rem; }
.demo-panel.before{ background:#fbeeee; border:1px solid #f0d3d3; }
.demo-panel.after{ background:var(--primary-soft); border:1px solid #cdeadb; }
.demo-panel .label{ font-weight:700; font-size:.7rem; text-transform:uppercase; letter-spacing:.05em; margin-bottom:.5rem; display:block; }
.demo-panel.before .label{ color:#a24444; }
.demo-panel.after .label{ color:var(--primary-strong); }
.demo-line{ height:8px; border-radius:4px; background:currentColor; opacity:.28; margin-bottom:.45rem; }
.demo-caption{ margin-top:1rem; font-size:.82rem; color:var(--ink-faint); text-align:center; }

/* ---------- Section shell ---------- */
section{ padding:4.5rem 0; }
section.tinted{ background:var(--surface); }
.section-head{ max-width:640px; margin:0 auto 56px; text-align:center; }
.section-head .eyebrow{ margin-bottom:.9rem; }
.section-head h2{ font-size:clamp(1.7rem,4vw,2.4rem); font-weight:800; letter-spacing:-.02em; margin:0 0 12px; }
.section-head p{ color:var(--ink-soft); font-size:1rem; margin:0; }

/* ---------- Servicios ---------- */
.services-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); gap:1.3rem; }
.svc-card{
  background:var(--paper); border:1px solid var(--rule); border-radius:var(--radius); padding:1.6rem 1.5rem 1.7rem;
  display:flex; flex-direction:column; box-shadow:var(--shadow); text-decoration:none; color:inherit;
  transition:transform .15s ease, border-color .15s ease;
}
.svc-card:hover{ transform:translateY(-3px); border-color:var(--primary); }
.svc-card.featured{ border-color:var(--primary); background:linear-gradient(180deg,#fff, var(--primary-soft) 220%); }
.svc-tag{ font-size:.68rem; font-weight:700; letter-spacing:.06em; text-transform:uppercase; color:var(--primary-strong); margin-bottom:.6rem; }
.svc-card h3{ font-size:1.18rem; margin-bottom:.5rem; }
.svc-card p{ color:var(--ink-soft); font-size:.92rem; margin-bottom:1rem; }
.svc-price{ font-family:'Montserrat'; font-weight:700; font-variant-numeric:tabular-nums; font-size:1.05rem; color:var(--ink); margin-top:auto; padding-top:.9rem; border-top:1px solid var(--rule-soft); }
.svc-price span{ font-size:.78rem; color:var(--ink-faint); font-family:'Montserrat'; }
.svc-arrow{ margin-top:.7rem; font-size:.85rem; font-weight:700; color:var(--primary-strong); }

/* ---------- Cómo funciona ---------- */
.steps{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); gap:1.4rem; counter-reset:step; }
.step{ position:relative; padding-left:.2rem; }
.step .num{
  font-family:'Montserrat'; font-weight:700; font-variant-numeric:tabular-nums; font-size:.85rem; color:#fff; background:var(--primary);
  width:34px; height:34px; border-radius:50%; display:flex; align-items:center; justify-content:center; margin-bottom:1rem;
}
.step h3{ font-size:1.05rem; margin-bottom:.5rem; }
.step p{ font-size:.9rem; color:var(--ink-soft); }

/* ---------- Segmentos ---------- */
.seg-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(230px,1fr)); gap:1.2rem; }
.seg-card{ background:var(--paper); border:1px solid var(--rule); border-radius:var(--radius); padding:1.4rem; }
.seg-card .seg-icon{ font-size:1.4rem; margin-bottom:.7rem; display:block; }
.seg-card h3{ font-size:1.02rem; margin-bottom:.4rem; }
.seg-card p{ font-size:.87rem; color:var(--ink-soft); margin:0; }

/* ---------- Stats ---------- */
.stats-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(200px,1fr)); gap:1px; background:var(--rule); border:1px solid var(--rule); border-radius:var(--radius); overflow:hidden; }
.stat-tile{ background:var(--paper); padding:1.5rem 1.4rem; }
.stat-tile .num{ font-family:'Montserrat'; font-size:2rem; font-weight:500; color:var(--primary-strong); display:block; }
.stat-tile .lbl{ font-size:.85rem; color:var(--ink-soft); margin-top:.5rem; display:block; }

/* ---------- FAQ ---------- */
.faq{ max-width:820px; }
.faq-item{ border-bottom:1px solid var(--rule); }
.faq-item summary{
  cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between;
  padding:1.15rem 0; font-weight:700; font-size:1.02rem; gap:1rem;
}
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:"+"; font-family:'Montserrat'; font-size:1.3rem; color:var(--primary); flex-shrink:0; }
.faq-item[open] summary::after{ content:"–"; }
.faq-item p{ padding-bottom:1.2rem; color:var(--ink-soft); max-width:70ch; }

/* ---------- Contacto ---------- */
.contact-wrap{ display:grid; grid-template-columns:1fr 1fr; gap:3rem; align-items:start; }
@media (max-width:860px){ .contact-wrap{ grid-template-columns:1fr; } }
.contact-form{ display:grid; gap:1rem; background:var(--paper); border:1px solid var(--rule); border-radius:var(--radius); padding:1.6rem; box-shadow:var(--shadow); }
.field{ display:grid; gap:.4rem; }
.field label{ font-size:.85rem; font-weight:600; color:var(--ink-soft); }
.field input, .field select, .field textarea{
  border:1px solid var(--rule); border-radius:8px; padding:.7rem .85rem; font:inherit; color:var(--ink); background:#fff;
}
.field textarea{ min-height:100px; resize:vertical; }
.contact-side h3{ font-size:1.15rem; margin-bottom:.7rem; }
.contact-side ul{ padding-left:1.1rem; color:var(--ink-soft); }
.contact-side li{ margin-bottom:.5rem; }

/* ---------- CTA banda ---------- */
.cta-band{ background:var(--ink); color:#fff; text-align:center; padding:3.6rem 0; }
.cta-band h2{ color:#fff; font-size:clamp(1.5rem,3vw,2rem); margin-bottom:.8rem; }
.cta-band p{ color:#c7cdd1; margin:0 auto 1.6rem; }

/* ---------- Footer ---------- */
footer.site{ background:var(--surface); border-top:1px solid var(--rule); padding:3rem 0 1.6rem; }
.foot-grid{ display:grid; grid-template-columns:1.3fr 1fr 1fr 1fr; gap:2rem; margin-bottom:2rem; }
@media (max-width:760px){ .foot-grid{ grid-template-columns:1fr; } }
.foot-grid h4{ font-size:.82rem; text-transform:uppercase; letter-spacing:.05em; color:var(--ink-faint); margin-bottom:.9rem; }
.foot-grid ul{ list-style:none; padding:0; margin:0; display:grid; gap:.6rem; }
.foot-grid a{ color:var(--ink-soft); text-decoration:none; font-size:.92rem; }
.foot-grid a:hover{ color:var(--primary-strong); }
.foot-bottom{ border-top:1px solid var(--rule); padding-top:1.4rem; display:flex; justify-content:space-between; flex-wrap:wrap; gap:.8rem; font-size:.8rem; color:var(--ink-faint); }

@media (max-width:760px){
  nav.main{ display:none; }
}