/* ============================================================
   AVENZA DIGITAL RD — Hoja de estilos principal
   Diseño original, tema oscuro corporativo
   ============================================================ */
:root{
  --bg:#0a0f1a;
  --bg2:#0e1626;
  --panel:#111c30;
  --panel2:#16233c;
  --line:#1f2f4d;
  --txt:#e8eef8;
  --muted:#94a5c0;
  --accent:#00d1b2;      /* verde-turquesa */
  --accent2:#ffb02e;     /* ámbar */
  --link:#5fd4ff;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Segoe UI',system-ui,-apple-system,Roboto,Arial,sans-serif;
  background:linear-gradient(180deg,var(--bg) 0%,var(--bg2) 100%);
  color:var(--txt);line-height:1.6;font-size:16px;
}
img{max-width:100%;display:block}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1180px,92%);margin-inline:auto}

/* ---------- Topbar ---------- */
.topbar{border-bottom:1px solid var(--line);font-size:.85rem;color:var(--muted)}
.topbar .container{display:flex;justify-content:space-between;gap:1rem;padding:.4rem 0;flex-wrap:wrap}
.topbar a{color:var(--muted)}

/* ---------- Header / Nav ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(10,15,26,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.7rem 0}
.brand{display:flex;align-items:center;gap:.6rem}
.brand svg{height:38px;width:auto}
.main-nav ul{display:flex;list-style:none;gap:.2rem}
.main-nav a{display:block;padding:.55rem .85rem;border-radius:9px;color:var(--txt);font-weight:600;font-size:.92rem}
.main-nav a:hover{background:var(--panel);text-decoration:none;color:var(--accent)}
.btn{display:inline-block;padding:.7rem 1.4rem;border-radius:10px;font-weight:700;font-size:.95rem;border:0;cursor:pointer;text-align:center}
.btn-accent{background:linear-gradient(90deg,#00d1b2,#00b3e6);color:#03261f}
.btn-accent:hover{filter:brightness(1.1);text-decoration:none}
.btn-outline{background:transparent;border:1px solid var(--accent);color:var(--accent)}
.btn-outline:hover{background:rgba(0,209,178,.08);text-decoration:none}
.btn-sm{padding:.45rem .9rem;font-size:.85rem}
.nav-toggle{display:none;background:none;border:1px solid var(--line);color:var(--txt);font-size:1.3rem;border-radius:8px;padding:.3rem .7rem;cursor:pointer}

/* ---------- Hero ---------- */
.hero{padding:4.2rem 0 3rem;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(600px 300px at 85% 0%,rgba(0,209,178,.14),transparent 60%),
  radial-gradient(500px 260px at 10% 100%,rgba(255,176,46,.08),transparent 60%);}
.hero .container{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:2.5rem;align-items:center}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);border:1px solid rgba(0,209,178,.35);padding:.3rem .8rem;border-radius:99px;margin-bottom:1.1rem}
.hero h1{font-size:clamp(1.9rem,4vw,3rem);line-height:1.15;margin-bottom:1rem}
.hero h1 span{color:var(--accent)}
.hero p.lead{color:var(--muted);font-size:1.08rem;max-width:34rem;margin-bottom:1.6rem}
.hero-cta{display:flex;gap:.8rem;flex-wrap:wrap;margin-bottom:1.6rem}
.hero-stats{display:flex;gap:1.6rem;flex-wrap:wrap}
.hstat b{display:block;font-size:1.35rem;color:var(--accent2)}
.hstat span{font-size:.82rem;color:var(--muted)}
.hero-art{position:relative}
.tower-card{background:linear-gradient(145deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;box-shadow:var(--shadow)}
.spec-row{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding:.45rem 0;font-size:.9rem}
.spec-row:last-child{border-bottom:0}
.spec-row span:first-child{color:var(--muted)}

/* ---------- Secciones genéricas ---------- */
.section{padding:3.4rem 0}
.section.alt{background:rgba(14,22,38,.55)}
.sec-head{max-width:46rem;margin-bottom:2rem}
.sec-head.center{margin-inline:auto;text-align:center}
.kicker{color:var(--accent);font-weight:700;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase}
.sec-head h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:.4rem 0 .5rem}
.sec-head p{color:var(--muted)}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:1.3rem}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:1.3rem}

/* Tarjetas */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;transition:transform .18s,border-color .18s}
.card:hover{transform:translateY(-3px);border-color:rgba(0,209,178,.5)}
.card h3{font-size:1.05rem;margin:.7rem 0 .4rem}
.card p{color:var(--muted);font-size:.93rem}
.icon-badge{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:rgba(0,209,178,.12);color:var(--accent);font-size:1.35rem}
.icon-badge.amber{background:rgba(255,176,46,.12);color:var(--accent2)}
.icon-badge.blue{background:rgba(95,212,255,.12);color:var(--link)}

/* Chips solución */
.solution-card{display:flex;flex-direction:column;gap:.5rem}
.solution-card .tags{display:flex;gap:.4rem;flex-wrap:wrap;margin-top:auto}
.tag{font-size:.75rem;background:var(--panel2);border:1px solid var(--line);color:var(--muted);border-radius:99px;padding:.18rem .6rem}

/* ---------- Catálogo productos ---------- */
.filters{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:1.6rem}
.filter-btn{background:var(--panel);border:1px solid var(--line);color:var(--muted);border-radius:99px;padding:.42rem 1rem;font-size:.85rem;cursor:pointer;font-weight:600}
.filter-btn.active{background:rgba(0,209,178,.15);border-color:var(--accent);color:var(--accent)}
.product-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:1.4rem}
.product-card{background:linear-gradient(160deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;display:flex;flex-direction:column;gap:.8rem;position:relative}
.product-card .visual{height:120px;border-radius:10px;display:grid;place-items:center;background:
  radial-gradient(180px 90px at 50% 100%,rgba(0,209,178,.18),transparent 70%),var(--bg2);border:1px solid var(--line)}
.product-card .visual svg{height:76px;width:auto;opacity:.95}
.badge{position:absolute;top:1rem;right:1rem;font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;border-radius:6px;padding:.2rem .55rem;background:rgba(255,176,46,.16);color:var(--accent2)}
.badge.best{background:rgba(0,209,178,.16);color:var(--accent)}
.product-card h3{font-size:1.12rem;line-height:1.3}
.product-card .subtitle{color:var(--muted);font-size:.86rem;margin-top:-.55rem}
.plist{list-style:none;font-size:.88rem;display:flex;flex-direction:column;gap:.35rem}
.plist li{display:flex;gap:.55rem;align-items:baseline}
.plist b{color:var(--muted);font-weight:600;min-width:5.4rem;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em}
.price-block{margin-top:auto;padding-top:.9rem;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:.6rem}
.price-label{font-size:.75rem;color:var(--muted)}
.price{font-size:1.35rem;font-weight:800;color:var(--accent)}
.price small{font-size:.8rem;color:var(--muted);font-weight:500}
.p-actions{display:flex;gap:.5rem;flex-wrap:wrap}
.note-muted{color:var(--muted);font-size:.82rem;margin-top:1.2rem}

/* ---------- Pasos "Cómo funciona" ---------- */
.steps{counter-reset:paso;display:grid;gap:1.2rem;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;position:relative}
.step::before{counter-increment:paso;content:counter(paso);position:absolute;top:-14px;left:1.3rem;width:30px;height:30px;border-radius:50%;background:linear-gradient(90deg,#00d1b2,#00b3e6);color:#04231d;font-weight:800;display:grid;place-items:center;font-size:.9rem}
.step h3{font-size:1rem;margin:.5rem 0 .35rem}
.step p{color:var(--muted);font-size:.9rem}

/* ---------- Tabla comparativa ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table.compare{width:100%;border-collapse:collapse;font-size:.88rem;min-width:640px}
table.compare th,table.compare td{padding:.75rem .9rem;text-align:left;border-bottom:1px solid var(--line)}
table.compare thead th{background:var(--panel2);color:var(--txt);white-space:nowrap}
table.compare tbody tr:last-child td{border-bottom:0}
table.compare td{color:var(--muted)}
table.compare td:first-child{color:var(--txt);font-weight:600}

/* ---------- Financiamiento dos columnas ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:1.3rem}
.check-list{list-style:none;display:flex;flex-direction:column;gap:.55rem;font-size:.92rem;color:var(--muted)}
.check-list li::before{content:"✔";color:var(--accent);margin-right:.55rem;font-weight:700}

/* ---------- CTA banda ---------- */
.cta-band{background:linear-gradient(120deg,rgba(0,209,178,.12),rgba(0,179,230,.10));border:1px solid rgba(0,209,178,.3);border-radius:var(--radius);padding:2.2rem;text-align:center}
.cta-band h2{margin-bottom:.5rem}
.cta-band p{color:var(--muted);margin-bottom:1.3rem}

/* ---------- Formularios ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form-grid .full{grid-column:1/-1}
label{font-size:.82rem;color:var(--muted);display:block;margin-bottom:.3rem;font-weight:600}
input,select,textarea{width:100%;background:var(--bg2);border:1px solid var(--line);color:var(--txt);border-radius:9px;padding:.65rem .8rem;font-size:.92rem;font-family:inherit}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
.field-msg{display:none;background:rgba(0,209,178,.12);border:1px solid rgba(0,209,178,.4);color:var(--accent);border-radius:9px;padding:.8rem 1rem;margin-top:1rem;font-size:.9rem}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:3rem;padding:2.6rem 0 1.4rem;background:#080d16}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:2rem;margin-bottom:1.8rem}
.site-footer h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.1em;color:var(--txt);margin-bottom:.8rem}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:.45rem;font-size:.9rem}
.site-footer a{color:var(--muted)}
.site-footer p{color:var(--muted);font-size:.9rem}
.footer-bottom{border-top:1px solid var(--line);padding-top:1.2rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;color:var(--muted);font-size:.8rem}

/* ---------- Modal experto ---------- */
.modal-mask{position:fixed;inset:0;background:rgba(4,8,15,.75);display:none;align-items:center;justify-content:center;z-index:100;padding:1rem}
.modal-mask.open{display:flex}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.8rem;width:min(480px,100%);position:relative;box-shadow:var(--shadow)}
.modal h3{margin-bottom:.4rem}
.modal p{color:var(--muted);font-size:.9rem;margin-bottom:1rem}
.modal-close{position:absolute;top:.8rem;right:.9rem;background:none;border:0;color:var(--muted);font-size:1.3rem;cursor:pointer}

/* ---------- Responsive ---------- */
@media(max-width:940px){
  .hero .container{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr}
  .main-nav{position:fixed;inset:64px 0 auto 0;background:var(--bg2);border-bottom:1px solid var(--line);display:none;padding:1rem 4%}
  .main-nav.open{display:block}
  .main-nav ul{flex-direction:column}
  .nav-toggle{display:block}
}
@media(max-width:600px){
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .topbar .container{justify-content:center}
}