:root{
  --bg:#ffffff;
  --text:#1f2937;
  --muted:#64748b;
  --line:#e2e8f0;
  --soft:#f7f9fc;
  --brand:#1f3b87;
  --shadow: 0 14px 34px rgba(2,6,23,.08);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color:var(--text);
  background:var(--bg);
}

img{ max-width:100%; display:block; }

.container{
  width:min(1120px, calc(100% - 48px));
  margin:0 auto;
}
.narrow{ width:min(560px, calc(100% - 48px)); margin:0 auto; }

/* Header */
.header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(226,232,240,.85);
}
.header-inner{
  height:80px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand{ display:flex; align-items:center; text-decoration:none; }
.logo{ height:56px; width:auto; }

.nav{
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:wrap;
  justify-content:center;
}
.nav a{
  color:var(--text);
  text-decoration:none;
  font-weight:650;
  font-size:14px;
  padding:10px 10px;
  border-radius:10px;
}
.nav a:hover{ background:rgba(15,23,42,.06); }

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:12px 16px;
  border-radius:12px;
  font-weight:700;
  text-decoration:none;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
}
.btn-primary{ background:var(--brand); color:#fff; }
.btn-primary:hover{ filter:brightness(.95); }
.btn-ghost{
  background:transparent;
  color:#fff;
  border-color: rgba(255,255,255,.45);
}
.btn-ghost:hover{ background: rgba(255,255,255,.10); }
.full{ width:100%; }

/* Typography */
.h2{ font-size:38px; margin:0 0 10px; letter-spacing:-0.02em; color:var(--brand); }
.h3{ font-size:16px; margin:0 0 8px; color:var(--text); }
.p{ margin:0; color:var(--muted); line-height:1.55; }
.lead{ margin: 0 0 26px; color:var(--muted); line-height:1.6; }

.tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--brand);
  margin-bottom:10px;
}

/* Layout */
.section{ padding: 92px 0; }
.section.soft{ background:var(--soft); }

.grid-2{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 40px;
  align-items:center;
}
.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

/* Hero */
.hero{
  position:relative;
  min-height: calc(100vh - 80px);
  display:flex;
  align-items:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background: url("../img/hero-asv.jpg") center/cover no-repeat;
  transform: scale(1.02);
}
.hero-overlay{
  position:absolute;
  inset:0;
  background: linear-gradient(90deg, rgba(2,6,23,.72) 0%, rgba(2,6,23,.35) 55%, rgba(2,6,23,.15) 100%);
}
.hero-content{ position:relative; z-index:1; }
.hero-box{
  max-width: 760px;
  padding: 28px 26px;
  border-radius: 18px;
  color:#fff;
  background: rgba(2,6,23,.18);
  border: 1px solid rgba(255,255,255,.18);
  backdrop-filter: blur(10px);
}
.hero-kicker{
  margin:0 0 10px;
  letter-spacing:.12em;
  text-transform:uppercase;
  font-size:12px;
  opacity:.92;
}
.hero-title{
  margin:0 0 10px;
  font-size: 54px;
  letter-spacing:-0.03em;
  line-height:1.02;
}
.hero-subtitle{
  margin:0 0 18px;
  font-size:16px;
  opacity:.95;
  line-height:1.6;
}
.hero-actions{ display:flex; gap:12px; flex-wrap:wrap; }

/* Cards */
.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius: 12px;
  padding: 22px;
  box-shadow: 0 1px 0 rgba(2,6,23,.02);
}
.date{
  display:block;
  font-size:12px;
  color:var(--muted);
  margin-bottom:10px;
  letter-spacing:.04em;
}

/* Method (2x2 como tu primera foto) */
.method-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  margin-top: 34px;
}
.method-item{
  padding: 10px 0;
  border-left: 1px solid rgba(226,232,240,.85);
  padding-left: 16px;
}
.method-n{
  display:block;
  font-size:32px;
  color:#d6dde9;
  margin-bottom: 8px;
  font-weight:800;
  letter-spacing:-0.02em;
}
.method-image{
  background: #eef3fb;
  border-radius: 14px;
  overflow:hidden;
  border:1px solid rgba(226,232,240,.85);
  box-shadow: var(--shadow);
}
.method-image img{ width:100%; height:auto; }

/* Form */
.form{ display:grid; gap:14px; margin-top: 18px; }
.field span{
  display:block;
  font-weight:750;
  font-size:13px;
  margin-bottom:8px;
  color: var(--text);
}
input, textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:12px;
  padding: 12px 12px;
  font-size:14px;
  outline:none;
  background:#fff;
  color: var(--text);
}
input:focus, textarea:focus{
  border-color: rgba(31,59,135,.45);
  box-shadow: 0 0 0 4px rgba(31,59,135,.10);
}
textarea{ resize: vertical; min-height: 140px; }

/* Footer */
.footer{
  border-top:1px solid var(--line);
  padding: 22px 0;
  color: var(--muted);
  background:#fff;
}
.footer-inner{ display:flex; justify-content:flex-start; }

/* WhatsApp floating */
.wa-float{
  position:fixed;
  right:24px;
  bottom:24px;
  width:60px;
  height:60px;
  border-radius:999px;
  background:#25D366;
  display:flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  z-index:99999;
  box-shadow:0 10px 28px rgba(0,0,0,.22);
  border:1px solid rgba(255,255,255,.22);
}
.wa-float:focus{ outline:none; box-shadow:0 0 0 6px rgba(31,59,135,.16), 0 10px 28px rgba(0,0,0,.22); }
.wa-icon{ font-size:28px; line-height:1; color:#fff; }

/* Responsive */
@media (max-width: 980px){
  .header-inner{ height:auto; padding: 14px 0; }
  .logo{ height:48px; }
  .hero-title{ font-size: 40px; }
  .grid-2{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .method-grid{ grid-template-columns: 1fr; }
}

/* Modal confirmación */
.modal{
  position:fixed;
  inset:0;
  display:none;
  z-index:100000;
}
.modal.is-open{ display:block; }

.modal-backdrop{
  position:absolute;
  inset:0;
  background: rgba(2,6,23,.55);
  backdrop-filter: blur(3px);
}

.modal-card{
  position:relative;
  width:min(520px, calc(100% - 48px));
  margin: 16vh auto 0;
  background:#fff;
  border-radius:16px;
  border:1px solid rgba(226,232,240,.9);
  box-shadow: 0 24px 60px rgba(2,6,23,.22);
  padding: 22px 22px 18px;
  text-align:center;
}

.modal-icon{
  width:52px;
  height:52px;
  border-radius:999px;
  margin: 4px auto 12px;
  display:flex;
  align-items:center;
  justify-content:center;
  background: rgba(31,59,135,.10);
  color: var(--brand);
  font-weight: 900;
  font-size: 22px;
}

.modal-title{
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--text);
}

.modal-desc{
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.55;
}

.modal-actions{
  display:flex;
  justify-content:center;
}