/* ============================================
   Lograna — landing estática
   Paleta extraída del logotipo:
   azul de marca #0B5394 sobre fondo claro
   ============================================ */

:root{
  /* marca */
  --brand:#0B5394;
  --brand-dark:#083C6D;
  --brand-mid:#2E6CA8;
  --brand-tint:#DFE9F2;
  --brand-line:#BFD3E6;

  /* neutros, con matiz azulado heredado del logo (#0B5394) */
  --ink:#16212B;
  --body:#3C4954;
  --muted:#63707C;
  --line:#D6E0E9;
  --line-soft:#E7EEF4;
  --surface:#F1F5F9;
  /* El fondo se mantiene deliberadamente por debajo del blanco: el nav es
     casi blanco y necesita que la pagina no se le acerque, o ambos tonos
     se confunden al hacer scroll. */
  --page:#DFE9F2;
  --page-alt:#D3E0EC;
  --white:#FFFFFF;

  --r-sm:6px;
  --r:10px;
  --r-lg:14px;

  --shadow-sm:0 1px 2px rgba(16,32,48,.05);
  --shadow:0 8px 26px -18px rgba(16,32,48,.32);
  --max:1080px;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--page);
  color:var(--body);
  font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.68;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4{
  font-family:"Source Serif 4",Georgia,serif;
  font-weight:600;
  line-height:1.18;
  letter-spacing:-.012em;
  color:var(--ink);
  margin:0;
}

h1{font-size:clamp(2.3rem,5.4vw,3.7rem)}
h2{font-size:clamp(1.65rem,3.2vw,2.35rem);max-width:19ch}
h3{font-size:1.16rem;letter-spacing:-.005em}

p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{display:block}
button,input,select,textarea{font:inherit;color:inherit}

::selection{background:var(--brand);color:#fff}

:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:3px}

.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--brand);color:#fff;padding:.7rem 1.1rem;font-weight:500;
}
.skip:focus{left:0}

.wrap{width:100%;max-width:var(--max);margin-inline:auto;padding-inline:clamp(1.15rem,4vw,2rem)}

/* ---------- hero ---------- */
/* El degradado nunca llega al blanco: se queda dentro de la familia
   azul-gris para que el nav blanco siga leyéndose encima. */
.hero{
  padding:clamp(3.4rem,7vw,5.5rem) 0 clamp(3.5rem,7vw,5.5rem);
  background:linear-gradient(180deg,var(--page-alt) 0%,var(--page) 100%);
}
.hero__inner{
  display:grid;
  grid-template-columns:1.06fr .94fr;
  gap:clamp(2.4rem,5vw,4rem);
  align-items:center;
}

.eyebrow{
  display:inline-block;
  font-size:.76rem;font-weight:500;letter-spacing:.085em;
  text-transform:uppercase;color:var(--brand);
}

.hero__title{margin:1.1rem 0 0}
.hero__title::after{
  content:"";display:block;width:52px;height:2px;
  background:var(--brand);margin-top:1.5rem;
}

.lead{
  margin-top:1.5rem;
  font-size:clamp(1.02rem,1.5vw,1.1rem);
  color:var(--muted);
  max-width:50ch;
}

.hero__actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}

.stats{
  display:grid;grid-template-columns:repeat(3,auto);
  gap:clamp(1.3rem,3.5vw,2.6rem);
  margin:2.8rem 0 0;padding-top:1.7rem;
  border-top:1px solid var(--line);
  justify-content:start;
}
.stats div{margin:0}
.stats dt{
  font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:.25rem;
}
.stats dd{
  margin:0;font-family:"Source Serif 4",Georgia,serif;
  font-size:clamp(1.45rem,2.4vw,1.85rem);font-weight:600;
  color:var(--brand);
}

/* ---------- botones ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  padding:.82rem 1.35rem;
  border:1px solid transparent;border-radius:var(--r-sm);
  font-weight:500;font-size:.92rem;
  cursor:pointer;white-space:nowrap;
  transition:background .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn svg{
  width:16px;height:16px;fill:none;stroke:currentColor;
  stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
  transition:transform .2s ease;
}
.btn:hover svg{transform:translateX(3px)}

.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--brand-dark)}

.btn--outline{background:transparent;border-color:var(--brand-line);color:var(--brand)}
.btn--outline:hover{border-color:var(--brand);background:var(--brand-tint)}

.btn--full{width:100%}

/* ---------- panel de datos ---------- */
.hero__panel{display:flex;justify-content:flex-end}

.telemetry{
  width:100%;max-width:370px;
  padding:1.5rem;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--white);
  box-shadow:var(--shadow);
}
.telemetry__head{
  display:flex;align-items:flex-start;justify-content:space-between;gap:1rem;
  padding-bottom:1.1rem;margin-bottom:1.2rem;
  border-bottom:1px solid var(--line-soft);
}
.telemetry__farm{font-weight:600;color:var(--ink);font-size:.95rem;line-height:1.4}
.telemetry__zone{font-size:.78rem;color:var(--muted);margin-top:.1rem}
.pill{
  display:inline-flex;align-items:center;gap:.4rem;flex:none;
  font-size:.72rem;font-weight:500;color:var(--brand-dark);
  padding:.24rem .58rem;border-radius:100px;
  border:1px solid var(--brand-line);background:var(--brand-tint);
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);flex:none}

.reading{margin-bottom:1.3rem}
.reading__label{
  font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);
}
.reading__value{
  font-family:"Source Serif 4",Georgia,serif;
  font-size:2.6rem;font-weight:600;color:var(--brand);
  line-height:1.1;margin-top:.15rem;
}
.reading__unit{font-size:1.3rem;margin-left:.1rem}
.reading__scale{
  display:flex;justify-content:space-between;
  font-size:.7rem;color:var(--muted);margin-top:.35rem;
}
.reading__bar{
  height:5px;border-radius:100px;background:var(--brand-tint);
  margin-top:.55rem;overflow:hidden;
}
.reading__bar i{
  display:block;height:100%;width:var(--v);
  background:var(--brand);border-radius:100px;
}

.telemetry__rows{list-style:none;margin:0 0 1.3rem;padding:0;display:grid;gap:.1rem}
.telemetry__rows li{
  display:flex;justify-content:space-between;align-items:baseline;gap:1rem;
  font-size:.85rem;color:var(--muted);
  padding:.55rem 0;border-bottom:1px solid var(--line-soft);
}
.telemetry__rows li:last-child{border-bottom:0}
.telemetry__rows b{font-weight:500;color:var(--ink)}

.chart__label{
  font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--muted);margin-bottom:.7rem;
}
.chart__bars{display:flex;align-items:flex-end;gap:.3rem;height:52px}
.chart__bars i{
  flex:1;height:var(--h);min-height:3px;border-radius:2px 2px 0 0;
  background:var(--brand-line);
}
.chart__bars i:nth-child(6),
.chart__bars i:nth-child(7){background:var(--brand-mid)}

/* ---------- secciones ---------- */
.section{padding:clamp(3.6rem,7vw,5.8rem) 0}
/* El blanco se reserva para las cards y los formularios: son elementos
   realzados. Las secciones se alternan dentro de la familia azul-gris,
   para que al hacer scroll la pagina no derive hacia el blanco. */
.section--contact{background:var(--page-alt);border-top:1px solid var(--brand-line)}

.section__head{margin-bottom:clamp(2.2rem,4vw,3.2rem)}
.section__head h2{margin-top:.9rem}
.section__head .lead{margin-top:1rem}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem}

.card{
  padding:1.7rem 1.55rem;
  border:1px solid var(--line);
  border-radius:var(--r);
  background:var(--white);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.card:hover{border-color:var(--brand-line);box-shadow:var(--shadow)}

.card__icon{
  width:40px;height:40px;display:grid;place-items:center;
  margin-bottom:1.15rem;
  border-radius:var(--r-sm);
  background:var(--brand-tint);
}
.card__icon svg{
  width:21px;height:21px;
  fill:none;stroke:var(--brand);stroke-width:1.5;
  stroke-linecap:round;stroke-linejoin:round;
}
.card h3{margin-bottom:.5rem}
.card p{color:var(--muted);font-size:.93rem}

.tags{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;margin:1.15rem 0 0;padding:0}
.tags li{
  font-size:.73rem;color:var(--muted);
  padding:.24rem .55rem;border-radius:var(--r-sm);
  background:var(--surface);border:1px solid var(--line-soft);
}

/* ---------- contacto ---------- */
.contact{
  display:grid;grid-template-columns:1fr 1fr;
  gap:clamp(2.2rem,4.5vw,3.8rem);align-items:start;
}
.contact__copy h2{margin:.9rem 0 0}
.contact__copy .lead{margin-top:1rem}

.contact__list{list-style:none;margin:2rem 0 0;padding:0;display:grid;max-width:400px}
.contact__list li{
  display:flex;justify-content:space-between;align-items:baseline;gap:1rem;
  padding:.8rem 0;border-bottom:1px solid var(--line);
}
.contact__list .k{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.contact__list a,.contact__list .v{font-size:.93rem;font-weight:500;color:var(--ink)}
.contact__list a{color:var(--brand);transition:color .18s ease}
.contact__list a:hover{color:var(--brand-dark)}

.form{
  padding:clamp(1.5rem,2.6vw,2rem);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--white);
  box-shadow:var(--shadow);
}
.field{display:grid;gap:.35rem;margin-bottom:1rem}
.row{display:grid;grid-template-columns:1fr 1fr;gap:.8rem}

.field label{font-size:.8rem;font-weight:500;color:var(--body)}

.field input,.field select,.field textarea{
  width:100%;
  padding:.72rem .85rem;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:var(--white);
  color:var(--ink);
  font-size:.93rem;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field textarea{resize:vertical;min-height:100px}
.field select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='%2363707C' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right .85rem center;
  background-size:11px;
  padding-right:2.1rem;
}
.field select option{background:#fff;color:var(--ink)}
.field input::placeholder,.field textarea::placeholder{color:#9AA4AD}

.field input:hover,.field select:hover,.field textarea:hover{border-color:#CFD6DD}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(11,83,148,.09);
}

.field.invalid input,.field.invalid select{border-color:#C0483B;box-shadow:0 0 0 3px rgba(192,72,59,.08)}
.err{color:#B03A2E;font-size:.75rem}

.form .btn{margin-top:.4rem}
.form__note{font-size:.75rem;color:var(--muted);text-align:center;margin-top:.85rem}
.form__ok{
  font-size:.85rem;color:var(--brand-dark);
  padding:.7rem .9rem;margin-top:.85rem;
  border:1px solid var(--brand-line);border-radius:var(--r-sm);
  background:var(--brand-tint);text-align:center;
}

/* ---------- footer ---------- */
.footer{background:var(--page-alt);border-top:1px solid var(--brand-line);padding:clamp(2.8rem,5vw,4rem) 0 1.8rem}
.footer__inner{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:clamp(1.8rem,3.5vw,3rem)}
.footer__logo{height:44px;width:auto;margin-bottom:.85rem;display:block}
.footer__brand p{font-size:.88rem;color:var(--muted);max-width:36ch}
.footer__col{display:grid;gap:.5rem;align-content:start}
.footer__col h4{
  font-family:Inter,sans-serif;
  font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);font-weight:500;margin-bottom:.25rem;
}
.footer__col a{font-size:.89rem;color:var(--body);width:fit-content;transition:color .18s ease}
.footer__col a:hover{color:var(--brand)}

.footer__bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:.4rem;
  margin-top:clamp(2rem,3.5vw,2.8rem);
  padding-top:1.4rem;
  border-top:1px solid var(--line-soft);
  font-size:.79rem;color:var(--muted);
}

/* ---------- nav ---------- */
/* El nav es blanco y el fondo tambien es muy claro: la separacion no
   puede depender del tono, asi que la marca la sombra y el borde. */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--brand-line);
  box-shadow:0 1px 12px rgba(11,83,148,.07);
  backdrop-filter:saturate(180%) blur(10px);
  /* Estado desplegado: barra alta y lockup grande. */
  --nav-h:84px;
  --logo-h:42px;
  --logo-w:185px;
}
/* Estado compacto: barra delgada y solo el simbolo. */
.nav.is-compact{
  --nav-h:52px;
  --logo-h:30px;
  --logo-w:46px;
  box-shadow:0 2px 18px rgba(11,83,148,.13);
}
.nav__inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;height:var(--nav-h);transition:height .34s cubic-bezier(.4,0,.2,1)}

/* La marca intercambia el lockup largo por el simbolo al compacta la barra.
   Las dos imagenes van apiladas y se cruzan con un fundido; la caja encoge
   hasta el ancho del simbolo para que el texto no empuje al menu. */
.logo{display:inline-flex;align-items:center}
.logo__box{
  position:relative;display:block;overflow:hidden;
  height:var(--logo-h);width:var(--logo-w);
  transition:height .34s cubic-bezier(.4,0,.2,1),width .34s cubic-bezier(.4,0,.2,1);
}
.logo__box img{position:absolute;left:0;top:50%;transform:translateY(-50%);display:block;height:100%;width:auto;transition:opacity .3s ease,transform .34s cubic-bezier(.4,0,.2,1)}
.logo__mark{opacity:0;transform:translateY(-50%) scale(.9)}
.nav.is-compact .logo__full{opacity:0;transform:translateY(-50%) scale(.97);transition-delay:0s}
.nav.is-compact .logo__mark{opacity:1;transform:translateY(-50%) scale(1);transition-delay:.07s}

.nav__links{display:flex;align-items:center;gap:.2rem}
.nav__links a{
  padding:.45rem .75rem;border-radius:var(--r-sm);
  font-size:.89rem;color:var(--body);
  transition:color .18s ease,background .18s ease;
}
.nav__links a:hover{color:var(--brand);background:var(--brand-tint)}

.nav__burger{
  display:none;width:38px;height:38px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--white);cursor:pointer;padding:0;
  place-items:center;
}
.nav__burger span{
  display:block;width:15px;height:1.5px;background:var(--ink);border-radius:2px;
  transition:transform .25s ease,opacity .2s ease;
}
.nav__burger span+span{margin-top:4px}
.nav__burger[aria-expanded="true"] span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav__burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav__burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
.cards .reveal:nth-child(2),.contact .reveal:nth-child(2){transition-delay:.08s}
.cards .reveal:nth-child(3){transition-delay:.16s}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .hero__inner,.contact{grid-template-columns:1fr}
  .hero__panel{justify-content:flex-start}
  .telemetry{max-width:420px}
  .footer__inner{grid-template-columns:1fr 1fr}
  .footer__brand{grid-column:1/-1}
}

@media (max-width:740px){
  /* La barra es mas baja en movil, y el menu se ancla al borde inferior de
     la cabecera (top:100%) para que siga al alto durante la transicion. */
  .nav{--nav-h:74px;--logo-h:37px;--logo-w:163px}
  .nav.is-compact{--nav-h:50px;--logo-h:28px;--logo-w:44px}
  .nav__burger{display:grid}
  .nav__links{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:.1rem;
    padding:1rem clamp(1.15rem,4vw,2rem) 1.3rem;
    background:rgba(255,255,255,.98);
    border-bottom:1px solid var(--line);
    display:none;
  }
  .nav__links.open{display:flex}
  .nav__links a{padding:.7rem .75rem;font-size:1rem}
  .row{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr;gap:1.3rem}
  .stats div:last-child{grid-column:1/-1}
}

@media (max-width:520px){
  .footer__inner{grid-template-columns:1fr}
  .footer__bottom{flex-direction:column}
  .hero__actions .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    transition-duration:.01ms !important;
  }
  .reveal{opacity:1;transform:none}
}