/* =========================================================
   Internet Assistance LLC — Hoja de estilos principal
   Diseño liviano, mobile-first, sin dependencias externas.
   ========================================================= */

:root{
  /* Paleta telecomunicaciones */
  --blue-600:#1463ff;
  --blue-700:#0b4fd6;
  --blue-900:#0a2540;
  --blue-050:#eef4ff;
  --ink:#16243b;
  --ink-soft:#42526b;
  --gray-050:#f5f7fb;
  --gray-100:#eaeef6;
  --gray-200:#d8e0ee;
  --white:#ffffff;
  /* Acento de conversión */
  --green-500:#16c172;
  --green-600:#0fb36b;
  --green-700:#0a8f54;
  --cyan-400:#27c0e6;

  --shadow-sm:0 1px 2px rgba(10,37,64,.06),0 2px 6px rgba(10,37,64,.06);
  --shadow-md:0 8px 24px rgba(10,37,64,.10);
  --shadow-lg:0 18px 48px rgba(10,37,64,.16);

  --radius:16px;
  --radius-sm:10px;
  --radius-pill:999px;

  --maxw:1160px;
  --gutter:clamp(18px,4vw,40px);

  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,"Inter","Noto Sans",sans-serif;

  --t-fast:.18s ease;
  --t:.28s cubic-bezier(.2,.7,.2,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--white);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{max-width:100%;height:auto;display:block}
a{color:var(--blue-700);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{line-height:1.18;color:var(--blue-900);margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800}
h2{font-size:clamp(1.5rem,3.4vw,2.3rem);font-weight:800}
h3{font-size:clamp(1.18rem,2.2vw,1.45rem);font-weight:700}
p{margin:0 0 1rem}
ul,ol{margin:0 0 1rem;padding-left:1.25rem}
li{margin:.3rem 0}
strong{color:var(--blue-900)}

.container{max-width:var(--maxw);margin:0 auto;padding-inline:var(--gutter)}
.section{padding-block:clamp(48px,7vw,84px)}
.section--tint{background:var(--gray-050)}
.section--blue{background:linear-gradient(160deg,var(--blue-900),#06407d);color:#dceaff}
.section--blue h2,.section--blue h3{color:#fff}
.section--blue strong,.section--blue b,.hero strong,.hero b{color:#fff}
.eyebrow{
  display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--blue-600);margin-bottom:.7rem;
}
.section--blue .eyebrow{color:var(--cyan-400)}
.lead{font-size:1.15rem;color:var(--ink-soft);max-width:62ch}
.center{text-align:center}
.center .lead{margin-inline:auto}
.muted{color:var(--ink-soft)}
.tiny{font-size:.85rem;line-height:1.5}

/* ---------- Skip link ---------- */
.skip{position:absolute;left:-999px;top:0;background:var(--blue-900);color:#fff;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip:focus{left:0}

/* ---------- Botones de llamada (CTA) ---------- */
.btn{
  --glow:rgba(22,193,114,.45);
  display:inline-flex;align-items:center;gap:.5rem;justify-content:center;
  background:linear-gradient(180deg,var(--green-500),var(--green-600));
  color:#fff;font-weight:800;font-size:1.18rem;letter-spacing:.01em;
  padding:.92rem 1.8rem;border-radius:var(--radius-pill);
  box-shadow:0 6px 18px var(--glow);
  transition:transform var(--t-fast),box-shadow var(--t-fast),filter var(--t-fast);
  border:none;cursor:pointer;text-decoration:none;
  white-space:nowrap;max-width:100%;line-height:1.1;
}
.btn>span{white-space:nowrap}
.btn:hover{transform:translateY(-2px);box-shadow:0 12px 26px var(--glow);filter:brightness(1.04);text-decoration:none}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:3px solid #fff;outline-offset:3px}
.btn .ico{width:22px;height:22px;flex:0 0 auto}
.btn--ghost{
  background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.5);
  box-shadow:none;--glow:transparent;
}
.btn--blue{background:linear-gradient(180deg,var(--blue-600),var(--blue-700));--glow:rgba(20,99,255,.4)}
.btn--lg{font-size:clamp(1.05rem,calc(1rem + 1.2vw),1.35rem);padding:1.05rem clamp(1.3rem,4vw,2.2rem)}
.btn--block{display:flex;width:100%;padding-inline:1rem}

/* pulso suave del CTA */
@keyframes pulseGlow{0%,100%{box-shadow:0 6px 18px rgba(22,193,114,.35)}50%{box-shadow:0 6px 26px rgba(22,193,114,.6)}}
.btn--pulse{animation:pulseGlow 2.6s ease-in-out infinite}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--gray-100);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:68px}
.brand{display:flex;align-items:center;gap:.6rem;font-weight:800;color:var(--blue-900);font-size:1.12rem;letter-spacing:-.02em}
.brand:hover{text-decoration:none}
.brand .mark{width:34px;height:34px;flex:0 0 auto}
.brand small{display:block;font-size:.62rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--blue-600)}
.nav{display:flex;align-items:center;gap:.2rem}
.nav a{
  color:var(--ink);font-weight:600;font-size:.95rem;padding:.5rem .7rem;border-radius:8px;
  transition:background var(--t-fast),color var(--t-fast);
}
.nav a:hover{background:var(--blue-050);color:var(--blue-700);text-decoration:none}
.nav a[aria-current="page"]{color:var(--blue-700)}
.header-cta{margin-left:.4rem}
.header-cta .btn{font-size:1rem;padding:.6rem 1.1rem}
.nav-toggle{display:none;background:none;border:1px solid var(--gray-200);border-radius:10px;padding:.5rem;cursor:pointer}
.nav-toggle svg{width:24px;height:24px;color:var(--blue-900)}

@media(max-width:960px){
  .nav-toggle{display:inline-flex}
  .nav{
    position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--gray-100);box-shadow:var(--shadow-md);
    padding:.6rem var(--gutter) 1rem;gap:.1rem;display:none;
  }
  .nav.open{display:flex}
  .nav a{padding:.8rem .6rem;border-bottom:1px solid var(--gray-050)}
  .header-cta{display:none}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--blue-900);color:#eaf2ff}
.hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(60% 70% at 78% 18%,rgba(39,192,230,.30),transparent 60%),
    radial-gradient(50% 60% at 18% 90%,rgba(20,99,255,.40),transparent 60%),
    linear-gradient(160deg,#06294f,#0a2540 60%,#072a55);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(24px,5vw,56px);align-items:center;padding-block:clamp(46px,8vw,90px)}
.hero h1{color:#fff}
.hero .lead{color:#c6dbff}
.hero-cta{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;margin:1.5rem 0 1rem}
.hero-links{display:flex;flex-wrap:wrap;gap:.4rem 1.3rem;font-size:.95rem;margin-top:.4rem}
.hero-links a{color:#aacbff;font-weight:600}
.hero-disclaimer{font-size:.85rem;color:#9fc0f0;max-width:54ch;border-left:2px solid rgba(39,192,230,.6);padding-left:.9rem;margin-top:1.6rem}
.hero-art{position:relative}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;text-align:center}.hero-cta,.hero-links{justify-content:center}.hero-disclaimer{margin-inline:auto;text-align:left}.hero-art{order:-1;max-width:420px;margin:0 auto}}

/* ---------- Banda de confianza ---------- */
.trust{display:grid;grid-template-columns:repeat(5,1fr);gap:1rem;text-align:center}
.trust .item{padding:.4rem}
.trust .item svg{width:30px;height:30px;margin:0 auto .5rem;color:var(--blue-600)}
.trust .item span{display:block;font-weight:700;font-size:.92rem;color:var(--blue-900)}
@media(max-width:760px){.trust{grid-template-columns:repeat(2,1fr);gap:1.4rem}}

/* ---------- Cards genéricas ---------- */
.grid{display:grid;gap:1.4rem}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:960px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{
  background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);
  padding:1.5rem;box-shadow:var(--shadow-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:var(--blue-050)}
.card .card-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:var(--blue-050);margin-bottom:1rem}
.card .card-ico svg{width:28px;height:28px;color:var(--blue-700)}
.card h3{margin-bottom:.4rem}
.card p{color:var(--ink-soft);margin-bottom:1rem}
.card .price-note{font-size:.82rem;color:var(--ink-soft);background:var(--gray-050);border-radius:8px;padding:.5rem .7rem;margin-bottom:1rem}

/* tarjeta de paquete */
.pkg{display:flex;flex-direction:column}
.pkg .badge{align-self:flex-start;background:var(--blue-050);color:var(--blue-700);font-weight:700;font-size:.74rem;letter-spacing:.08em;text-transform:uppercase;padding:.28rem .7rem;border-radius:var(--radius-pill);margin-bottom:.9rem}
.pkg ul{list-style:none;padding:0;margin:0 0 1rem}
.pkg ul li{display:flex;gap:.55rem;align-items:flex-start;color:var(--ink-soft);margin:.5rem 0}
.pkg ul li svg{width:18px;height:18px;color:var(--green-600);flex:0 0 auto;margin-top:.28rem}
.pkg .btn{margin-top:auto;font-size:1.05rem;padding:.8rem 1rem}

/* ---------- Pasos "Cómo funciona" ---------- */
.steps{counter-reset:step;display:grid;gap:1.2rem;grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.steps{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}
.step{position:relative;background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);padding:1.5rem 1.3rem 1.3rem}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:-14px;left:1.3rem;font-weight:800;font-size:.9rem;color:#fff;background:linear-gradient(180deg,var(--blue-600),var(--blue-700));padding:.28rem .6rem;border-radius:var(--radius-pill);box-shadow:var(--shadow-sm)}
.step h3{font-size:1.1rem;margin:.4rem 0 .3rem}
.step p{color:var(--ink-soft);margin:0;font-size:.96rem}

/* ---------- Lista de beneficios ---------- */
.benefits{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem 1.6rem}
@media(max-width:820px){.benefits{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.benefits{grid-template-columns:1fr}}
.benefit{display:flex;gap:.8rem;align-items:flex-start}
.benefit svg{width:26px;height:26px;color:var(--green-600);flex:0 0 auto;margin-top:.2rem}
.benefit b{display:block;color:var(--blue-900)}
.benefit span{color:var(--ink-soft);font-size:.95rem}

/* ---------- GEO ---------- */
.geo-wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,48px);align-items:center}
@media(max-width:860px){.geo-wrap{grid-template-columns:1fr}}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:.4rem 0 1rem}
.chip{background:#fff;border:1px solid var(--gray-200);color:var(--blue-900);font-weight:600;font-size:.85rem;padding:.35rem .8rem;border-radius:var(--radius-pill);transition:transform var(--t-fast),border-color var(--t-fast)}
.chip:hover{transform:translateY(-2px);border-color:var(--blue-600)}
.section--blue .chip{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.25);color:#eaf2ff}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius-sm);margin-bottom:.7rem;box-shadow:var(--shadow-sm);overflow:hidden}
.faq summary{cursor:pointer;font-weight:700;color:var(--blue-900);padding:1.05rem 3rem 1.05rem 1.2rem;position:relative;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:1.2rem;top:50%;transform:translateY(-50%);font-size:1.5rem;font-weight:400;color:var(--blue-600);transition:transform var(--t-fast)}
.faq details[open] summary::after{content:"–"}
.faq .answer{padding:0 1.2rem 1.1rem;color:var(--ink-soft)}

/* ---------- CTA final ---------- */
.cta-final{background:linear-gradient(150deg,var(--blue-900),#0a4ea0);color:#eaf2ff;border-radius:var(--radius);padding:clamp(32px,5vw,56px);text-align:center;box-shadow:var(--shadow-lg);position:relative;overflow:hidden}
.cta-final::after{content:"";position:absolute;inset:0;background:radial-gradient(50% 80% at 80% 10%,rgba(39,192,230,.25),transparent 60%);pointer-events:none}
.cta-final h2{color:#fff;position:relative}
.cta-final p{color:#c6dbff;max-width:56ch;margin-inline:auto;position:relative}
.cta-final .btn{position:relative;margin-top:1rem}

/* ---------- Disclaimer box ---------- */
.disclaimer{background:var(--blue-050);border:1px solid var(--gray-200);border-left:4px solid var(--blue-600);border-radius:var(--radius-sm);padding:1.1rem 1.3rem;font-size:.92rem;color:var(--ink-soft)}
.disclaimer strong{color:var(--blue-900)}

/* ---------- Bloque telefónico de contacto ---------- */
.phone-block{text-align:center;background:#fff;border:1px solid var(--gray-100);border-radius:var(--radius);padding:2rem;box-shadow:var(--shadow-md)}
.phone-block .num{font-size:clamp(2rem,6vw,2.8rem);font-weight:800;color:var(--blue-900);letter-spacing:.01em;display:inline-block;margin:.4rem 0 1rem}
.phone-block .num:hover{text-decoration:none;color:var(--blue-700)}

/* ---------- Tabla de contenido (blog) ---------- */
.toc{background:var(--gray-050);border:1px solid var(--gray-100);border-radius:var(--radius-sm);padding:1.1rem 1.3rem;margin:1.5rem 0}
.toc strong{display:block;margin-bottom:.5rem;color:var(--blue-900)}
.toc ol{margin:0;padding-left:1.2rem}
.toc a{font-weight:600}

/* ---------- Artículo / contenido largo ---------- */
.prose{max-width:760px;margin:0 auto}
.prose h2{margin-top:2.2rem}
.prose h3{margin-top:1.6rem}
.prose img{border-radius:var(--radius);margin:1.5rem 0}
.breadcrumb{font-size:.85rem;color:var(--ink-soft);margin-bottom:1rem}
.breadcrumb a{color:var(--blue-700)}
.post-meta{color:var(--ink-soft);font-size:.9rem;margin-bottom:1.5rem}

.blog-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.blog-card .thumb{aspect-ratio:16/9;background:var(--blue-050);overflow:hidden}
.blog-card .thumb svg{width:100%;height:100%}
.blog-card .body{padding:1.3rem 1.4rem 1.5rem}
.blog-card h3{font-size:1.15rem}
.blog-card .body p{font-size:.95rem}

/* ---------- Footer ---------- */
.site-footer{background:var(--blue-900);color:#b8cbe6;padding-block:clamp(40px,6vw,64px) 0;font-size:.94rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem}
@media(max-width:860px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;margin-bottom:1rem}
.site-footer a:not(.btn){color:#b8cbe6;display:block;padding:.22rem 0}
.site-footer a:not(.btn):hover{color:#fff}
.site-footer .btn{margin-top:.4rem}
.footer-brand .brand{color:#fff}
.footer-brand .brand small{color:var(--cyan-400)}
.footer-contact{margin-top:1rem;line-height:1.7}
.footer-contact a.phone{font-size:1.2rem;font-weight:800;color:#fff}
.footer-disclaimer{border-top:1px solid rgba(255,255,255,.12);margin-top:2.4rem;padding:1.6rem 0;font-size:.82rem;color:#8fa6c6;line-height:1.6}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:1.2rem 0;display:flex;flex-wrap:wrap;justify-content:space-between;gap:.6rem;font-size:.82rem;color:#8fa6c6}

/* ---------- Botón flotante de llamada ---------- */
.float-call{
  position:fixed;right:18px;bottom:18px;z-index:100;
  display:inline-flex;align-items:center;gap:.5rem;
  background:linear-gradient(180deg,var(--green-500),var(--green-600));
  color:#fff;font-weight:800;font-size:1.05rem;
  padding:.8rem 1.25rem;border-radius:var(--radius-pill);
  box-shadow:0 10px 26px rgba(10,143,84,.5);
  animation:pulseGlow 2.6s ease-in-out infinite;
  transition:transform var(--t-fast);
}
.float-call:hover{transform:scale(1.04);text-decoration:none}
.float-call svg{width:22px;height:22px}
.float-call .lbl{}
@media(max-width:520px){.float-call .lbl{font-size:1rem}.float-call{right:12px;bottom:12px;padding:.75rem 1.1rem}}

/* ---------- Reveal al hacer scroll ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Legal layout ---------- */
.legal{max-width:820px;margin:0 auto}
.legal h2{font-size:1.4rem;margin-top:2rem}
.legal ul{color:var(--ink-soft)}
.update-date{color:var(--ink-soft);font-size:.9rem;margin-bottom:1.5rem}

/* ---------- Accesibilidad / motion ---------- */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal{opacity:1;transform:none}
}
:focus-visible{outline:3px solid var(--blue-600);outline-offset:2px;border-radius:4px}