/* AdFibra - hoja de estilo de marca. Azul #004AFF como senal; alineacion a la izquierda. */
:root{
  --bg:#ffffff; --surface:#ffffff; --band:#f4f7ff; --ink:#14171f; --muted:#5b6478;
  --line:#e4e9f7; --brand:#004aff; --brand-strong:#0039cc; --on-brand:#ffffff;
  --deep:#021233; --deep-ink:#eaf0ff; --deep-muted:#9fb0d6;
  --font-display:"Poppins",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --maxw:1140px;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0a1020; --surface:#111a30; --band:#0e1526; --ink:#eaf0ff; --muted:#9aa7c2;
  --line:#22304f; --brand:#2f6bff; --brand-strong:#5a8bff; --on-brand:#ffffff; color-scheme:dark;
}}
:root[data-theme="dark"]{
  --bg:#0a1020; --surface:#111a30; --band:#0e1526; --ink:#eaf0ff; --muted:#9aa7c2;
  --line:#22304f; --brand:#2f6bff; --brand-strong:#5a8bff; --on-brand:#ffffff; color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);line-height:1.6;-webkit-font-smoothing:antialiased;font-size:16px}
h1,h2,h3{font-family:var(--font-display);font-weight:700;line-height:1.1;text-wrap:balance;margin:0}
p{margin:0}
img{max-width:100%}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);border:0}
.wrap{max-width:var(--maxw);margin-inline:auto;padding-left:max(20px,env(safe-area-inset-left,0px));padding-right:max(20px,env(safe-area-inset-right,0px))}
.logo-svg{display:block;height:34px;width:auto}
.logo-svg .wm{fill:var(--ink)} .logo-svg .dot{fill:var(--brand)}
.logo-svg.on-deep .wm{fill:#fff} .logo-svg.on-deep .dot{fill:#4d8cff}

/* botones */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-display);font-weight:600;font-size:15px;border-radius:10px;padding:11px 18px;border:1px solid transparent;cursor:pointer;transition:background .15s ease,transform .05s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:var(--on-brand)}
.btn-primary:hover{background:var(--brand-strong)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:15px 26px;font-size:17px;border-radius:12px}

/* cabecera */
header.site{position:sticky;top:env(safe-area-inset-top,0px);z-index:40;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:24px;min-height:68px}
.nav .menu{display:flex;gap:22px;margin-left:12px;flex:1}
.nav .menu a{color:var(--muted);font-weight:500;font-size:15px;padding:6px 0;border-bottom:2px solid transparent}
.nav .menu a:hover,.nav .menu a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--brand)}
.nav .actions{display:flex;align-items:center;gap:14px}
.link-cli{color:var(--ink);font-weight:600;font-size:15px}
.burger{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:44px;height:44px;color:var(--ink);cursor:pointer}
.burger svg{width:22px;height:22px;display:block;margin:auto}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--band);border-bottom:1px solid var(--line)}
.hero-fibra{position:absolute;inset:0;width:100%;height:100%;display:block;pointer-events:none}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;padding-block:72px 84px;align-items:center}
.hero .lead{max-width:34ch}
.tagline{font-family:var(--font-display);font-weight:700;letter-spacing:.01em;font-size:clamp(2.6rem,6vw,4rem);line-height:1.02}
.tagline .plus{color:var(--brand)}
.hero p.sub{margin-top:18px;font-size:clamp(1.05rem,2.4vw,1.25rem);color:var(--muted);max-width:42ch}
.hero-art{position:relative;min-height:300px}

/* comprobador de cobertura */
.cover{margin-top:30px;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;box-shadow:0 18px 50px -28px rgba(0,38,120,.45)}
.cover h2{font-size:1.05rem;font-weight:600;font-family:var(--font-body)}
.cover form{display:flex;gap:10px;margin-top:12px}
.cover input{flex:1;min-width:0;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:11px;padding:14px 15px;font-size:16px;font-family:var(--font-body)}
.cover input::placeholder{color:var(--muted)}
.cover .hint{margin-top:10px;font-size:13px;color:var(--muted)}
.cover .result{margin-top:12px;font-size:15px;background:var(--band);border:1px solid var(--line);border-radius:11px;padding:12px 14px}
.cover .result b{color:var(--brand)}
.badges{display:flex;flex-wrap:wrap;gap:8px 18px;margin-top:24px;list-style:none;padding:0}
.badges li{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;font-weight:500}
.badges svg{width:18px;height:18px;color:var(--brand);flex:none}

/* secciones */
section{padding-block:76px}
.band{background:var(--band)}
.sec-head{max-width:46ch}
.sec-head h2{font-size:clamp(1.8rem,3.6vw,2.5rem)}
.sec-head p{margin-top:12px;color:var(--muted);font-size:1.08rem}

/* hero interior de paginas */
.page-hero{background:var(--band);border-bottom:1px solid var(--line)}
.page-hero .wrap{padding-block:56px 48px}
.page-hero .crumbs{font-size:.85rem;color:var(--muted);margin-bottom:14px}
.page-hero .crumbs a:hover{color:var(--brand)}
.page-hero h1{font-size:clamp(2rem,4.4vw,3rem);max-width:20ch}
.page-hero p{margin-top:14px;color:var(--muted);font-size:1.12rem;max-width:52ch}
.page-hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}

/* prosa de contenido */
.prose{max-width:68ch;color:var(--ink)}
.prose h2{font-size:1.5rem;margin:36px 0 12px}
.prose h3{font-size:1.15rem;margin:24px 0 8px}
.prose p{margin:0 0 14px;color:var(--muted)}
.prose ul{color:var(--muted);padding-left:20px;margin:0 0 16px}
.prose li{margin:6px 0}
.prose strong{color:var(--ink)}

/* tarifas */
.prods{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:40px;align-items:stretch}
.prod{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;padding:26px;background:var(--surface)}
.prod .k{font-family:var(--font-display);font-weight:600;font-size:1.3rem}
.prod .d{color:var(--muted);margin-top:8px;font-size:.98rem;flex:1}
.prod .price{margin-top:20px;display:flex;align-items:baseline;gap:4px}
.prod .price .num{font-family:var(--font-display);font-weight:700;font-size:2.1rem;line-height:1;font-variant-numeric:tabular-nums}
.prod .price .cur{font-weight:700;font-size:1.2rem}
.prod .price .per{color:var(--muted);font-size:.9rem;margin-left:2px}
.prod ul{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-direction:column;gap:9px}
.prod li{display:flex;gap:9px;font-size:.95rem}
.prod li svg{width:17px;height:17px;color:var(--brand);flex:none;margin-top:3px}
.prod .btn{margin-top:22px;width:100%}
.prod.feat{background:var(--brand);border-color:var(--brand);color:var(--on-brand);box-shadow:0 24px 60px -30px rgba(0,74,255,.7)}
.prod.feat .d,.prod.feat .price .per{color:rgba(255,255,255,.82)}
.prod.feat li svg{color:#fff}
.prod.feat .tag{align-self:flex-start;background:rgba(255,255,255,.18);color:#fff;font-size:.72rem;font-weight:600;letter-spacing:.04em;padding:5px 10px;border-radius:999px;margin-bottom:14px}
.prod.feat .btn-primary{background:#fff;color:var(--brand)}
.prod.feat .btn-primary:hover{background:#eaf0ff}
.fineprint{margin-top:18px;color:var(--muted);font-size:.85rem;max-width:60ch}

/* valores */
.vals{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 36px;margin-top:40px}
.val{display:flex;flex-direction:column;gap:10px}
.val .ic{width:46px;height:46px;border-radius:12px;background:color-mix(in srgb,var(--brand) 12%,transparent);display:flex;align-items:center;justify-content:center;color:var(--brand)}
.val .ic svg{width:24px;height:24px}
.val h3{font-size:1.12rem;font-family:var(--font-display);font-weight:600}
.val p{color:var(--muted);font-size:.97rem}

/* pasos */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px;counter-reset:paso;list-style:none;padding:0}
.step{position:relative;padding:26px 24px;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
.step::before{counter-increment:paso;content:counter(paso);font-family:var(--font-display);font-weight:700;color:var(--brand);font-size:1.1rem;display:inline-flex;width:38px;height:38px;border-radius:10px;align-items:center;justify-content:center;background:color-mix(in srgb,var(--brand) 12%,transparent)}
.step h3{margin-top:16px;font-size:1.1rem;font-family:var(--font-display);font-weight:600}
.step p{margin-top:8px;color:var(--muted);font-size:.96rem}

/* faq */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:26px 40px;margin-top:40px}
.faq .qa h3{font-size:1.08rem;font-family:var(--font-display);font-weight:600}
.faq .qa p{margin-top:8px;color:var(--muted);font-size:.98rem}

/* formulario de contacto */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:8px;max-width:640px}
.field{display:flex;flex-direction:column;gap:6px}
.field.full{grid-column:1 / -1}
.field label{font-size:.9rem;font-weight:600}
.field input,.field textarea,.field select{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:11px;padding:13px 14px;font-size:16px;font-family:var(--font-body)}
.field textarea{min-height:120px;resize:vertical}
.form-note{font-size:.82rem;color:var(--muted);margin-top:10px}
.alert{border-radius:11px;padding:14px 16px;margin-bottom:18px;border:1px solid var(--line)}
.alert-ok{background:color-mix(in srgb,var(--brand) 8%,var(--surface));border-color:var(--brand);color:var(--ink)}
.alert-err{background:#fff2f2;border-color:#f3b4b4;color:#8a1f1f}

/* cta */
.cta{background:var(--deep);color:var(--deep-ink)}
.cta .wrap{padding-block:64px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta h2{color:#fff;font-size:clamp(1.7rem,3.4vw,2.3rem);max-width:20ch}
.cta p{color:var(--deep-muted);margin-top:10px;max-width:42ch}
.cta .btn-primary{background:#fff;color:var(--deep)}
.cta .btn-primary:hover{background:#eaf0ff}
.cta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}

/* ciudades (enlazado interno) */
.city-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:8px 18px;margin-top:28px;list-style:none;padding:0}
.city-grid a{color:var(--muted);font-size:.92rem;padding:5px 0;display:block}
.city-grid a:hover{color:var(--brand)}

/* pie */
footer.site{background:var(--deep);color:var(--deep-muted);padding-block:56px 32px}
.fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:34px}
.fcol h4{color:#fff;font-size:.95rem;font-family:var(--font-display);font-weight:600;margin:0 0 14px}
.fcol a{display:block;color:var(--deep-muted);padding:5px 0;font-size:.93rem}
.fcol a:hover{color:#fff}
.fabout p{color:var(--deep-muted);font-size:.92rem;margin-top:14px;max-width:32ch}
.contact-block{margin-top:14px;font-size:.93rem;line-height:1.9}
.contact-block b{color:#fff;font-weight:600}
.fbar{border-top:1px solid rgba(255,255,255,.1);margin-top:36px;padding-top:20px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:.85rem;color:var(--deep-muted)}
.fbar a{color:var(--deep-muted)} .fbar a:hover{color:#fff}

@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;padding-block:48px 56px}
  .hero-art{display:none}
  .prods,.vals,.steps,.faq,.form-grid{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr 1fr}
  .nav .menu{display:none}
  .burger{display:block}
  .nav .actions .link-cli{display:none}
}
@media (max-width:520px){.cover form{flex-direction:column}.cover .btn{width:100%}.fgrid{grid-template-columns:1fr}}