/* Grupo SISP — Landing
   Paleta: negro carbón + oro institucional (del logo SISP) */

:root{
  --black:#0A0A0A;
  --ink:#111112;
  --ink-2:#17181A;
  --line:rgba(233,184,36,.16);
  --line-soft:rgba(255,255,255,.09);
  --gold:#E9B824;
  --gold-dim:#C79A16;
  --white:#F7F6F3;
  --muted:#A6A5A1;
  --wa:#25D366;

  --f-head:'Archivo',system-ui,sans-serif;
  --f-body:'Inter',system-ui,-apple-system,sans-serif;

  --wrap:1180px;
  --r:14px;
  --shadow:0 18px 50px rgba(0,0,0,.55);
  --ease:cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;background:var(--black);color:var(--white);
  font-family:var(--f-body);font-size:1rem;line-height:1.65;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--f-head);font-weight:800;line-height:1.08;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,8.2vw,4.1rem)}
h2{font-size:clamp(1.65rem,5.4vw,2.6rem)}
h3{font-size:1.16rem;font-weight:600;letter-spacing:-.01em}
p{margin:0 0 1rem}
em{font-style:normal;color:var(--gold)}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:20px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:var(--gold);color:#000;padding:10px 14px;z-index:99;border-radius:8px}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px}

.eyebrow{
  font-family:var(--f-head);font-weight:600;font-size:.72rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gold);margin:0 0 .9rem;
}

/* ---------- Nav ---------- */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(10,10,10,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s;
}
.nav.is-stuck{border-bottom-color:var(--line);background:rgba(10,10,10,.92)}
.nav__in{display:flex;align-items:center;gap:1rem;min-height:62px}
.brand{display:flex;align-items:center;gap:.6rem;color:var(--gold);margin-right:auto}
.brand__mark{width:28px;height:28px;flex:0 0 auto}
.brand__txt{font-family:var(--f-head);font-weight:500;font-size:.9rem;letter-spacing:.14em;color:var(--white)}
.brand__txt b{color:var(--gold);font-weight:800}
.nav__links{display:none;gap:1.6rem;font-size:.88rem;color:var(--muted)}
.nav__links a{transition:color .2s}
.nav__links a:hover{color:var(--gold)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  font-family:var(--f-head);font-weight:600;font-size:.95rem;letter-spacing:.01em;
  padding:.95rem 1.4rem;border-radius:100px;border:1px solid transparent;
  background:var(--gold);color:#0A0A0A;cursor:pointer;
  transition:transform .25s var(--ease),background .25s,box-shadow .25s;
}
.btn svg{width:19px;height:19px}
.btn:hover{transform:translateY(-2px)}
.btn--sm{padding:.6rem 1.05rem;font-size:.83rem}
.btn--wa{background:var(--wa);color:#04240F}
.btn--wa:hover{background:#2ee473;box-shadow:0 10px 30px rgba(37,211,102,.28)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.28);color:var(--white)}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold)}
.btn--full{width:100%}
.nav__cta{display:none}
.link{
  font-family:var(--f-head);font-weight:600;font-size:.9rem;color:var(--gold);
  display:inline-block;margin-top:.35rem;transition:opacity .2s,transform .2s var(--ease);
}
.link:hover{opacity:.75;transform:translateX(3px)}

/* ---------- Hero ---------- */
.hero{position:relative;isolation:isolate;overflow:hidden;min-height:clamp(560px,88svh,780px);display:flex;align-items:flex-end}
.hero__img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:38% 50%;z-index:-2}
.hero__veil{
  position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(180deg,rgba(10,10,10,.86) 0%,rgba(10,10,10,.35) 35%,rgba(10,10,10,.92) 78%,var(--black) 100%),
    radial-gradient(90% 60% at 20% 90%,rgba(233,184,36,.10),transparent 70%);
}
.hero__in{padding-block:clamp(2.5rem,9vw,5rem)}
.hero h1{max-width:22ch;text-shadow:0 2px 24px rgba(0,0,0,.55)}
.lead{font-size:clamp(1rem,3.5vw,1.16rem);color:#DCDAD4;max-width:52ch}
.hero__cta{display:flex;flex-direction:column;gap:.7rem;margin:1.6rem 0 1.8rem}
.trust{list-style:none;margin:0;padding:1.2rem 0 0;border-top:1px solid var(--line);display:grid;gap:.55rem;font-size:.86rem;color:var(--muted)}
.trust b{color:var(--white);font-weight:600}

/* ---------- Stats band ---------- */
.band{background:linear-gradient(180deg,#0D0D0E,#0A0A0A);border-block:1px solid var(--line-soft)}
.stats{display:grid;gap:1.6rem;padding-block:2.6rem}
.stat p{font-size:.85rem;color:var(--muted);margin:.35rem 0 0;max-width:34ch}
.stat__n{font-family:var(--f-head);font-weight:800;font-size:2.6rem;color:var(--gold);line-height:1}
.stat__u{font-family:var(--f-head);font-weight:600;font-size:1.05rem;color:var(--gold-dim);margin-left:.2rem}

/* ---------- Sections ---------- */
.sec{padding-block:clamp(3.4rem,10vw,6.5rem)}
.sec--alt{background:var(--ink)}
.sec--cta{background:
  radial-gradient(120% 90% at 100% 0%,rgba(233,184,36,.09),transparent 60%),var(--ink-2)}
.sec__head{max-width:62ch;margin-bottom:2.4rem}
.sec__sub{color:var(--muted)}

/* Cards */
.cards{display:grid;gap:1.3rem}
.card{
  background:var(--ink-2);border:1px solid var(--line-soft);border-radius:var(--r);
  overflow:hidden;transition:border-color .3s,transform .35s var(--ease);
}
.card:hover{border-color:var(--line);transform:translateY(-4px)}
.card__media{aspect-ratio:16/10;overflow:hidden;background:#000}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.card:hover .card__media img{transform:scale(1.05)}
.card__body{padding:1.35rem 1.25rem 1.5rem}
.card__body p{font-size:.92rem;color:var(--muted)}
.ticks{list-style:none;margin:0 0 .9rem;padding:0;display:grid;gap:.45rem;font-size:.87rem}
.ticks li{position:relative;padding-left:1.35rem;color:#CFCDC7}
.ticks li::before{
  content:"";position:absolute;left:0;top:.52em;width:8px;height:8px;
  background:var(--gold);transform:rotate(45deg);
}

/* Nosotros / misión-visión-valores */
.mv{display:grid;gap:1rem}
.mv__card{
  position:relative;padding:1.5rem 1.3rem;border-radius:var(--r);
  background:linear-gradient(180deg,rgba(233,184,36,.05),rgba(255,255,255,.015));
  border:1px solid var(--line-soft);border-top:2px solid var(--gold);
  transition:border-color .3s,transform .35s var(--ease);
}
.mv__card:hover{border-color:var(--line);border-top-color:var(--gold);transform:translateY(-3px)}
.mv__tag{
  display:inline-block;margin-bottom:.7rem;
  font-family:var(--f-head);font-weight:800;font-size:.74rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--gold);
}
.mv__card p{margin:0;font-size:.93rem;color:#C9C7C1}
.values{list-style:none;margin:0 0 .9rem;padding:0;display:flex;flex-wrap:wrap;gap:.4rem}
.values li{
  font-family:var(--f-head);font-weight:600;font-size:.8rem;
  padding:.3rem .7rem;border-radius:100px;
  background:rgba(233,184,36,.1);border:1px solid var(--line);color:var(--gold);
}
.pledge{
  margin:2rem 0 0;padding-top:1.5rem;border-top:1px solid var(--line-soft);
  font-family:var(--f-head);font-weight:500;font-size:clamp(1.02rem,3.2vw,1.28rem);
  line-height:1.45;max-width:60ch;color:#E6E4DE;
}

/* Split / filtros */
.split{display:grid;gap:2.4rem}
.split__txt p{color:var(--muted)}
.quote{
  border-left:2px solid var(--gold);padding:.2rem 0 .2rem 1rem;
  color:var(--white);font-size:1rem;font-style:italic;margin-top:1.3rem;
}
.filters{list-style:none;margin:0;padding:0;display:grid;gap:.2rem;counter-reset:f}
.filters li{display:flex;gap:1rem;padding:1.05rem .2rem;border-top:1px solid var(--line-soft)}
.filters li:last-child{border-bottom:1px solid var(--line-soft)}
.filters span{font-family:var(--f-head);font-weight:800;color:var(--gold);font-size:.9rem;min-width:2ch}
.filters b{font-weight:600;font-size:.98rem}
.filters p{margin:.15rem 0 0;font-size:.86rem;color:var(--muted)}

/* Steps */
.steps{display:grid;gap:1rem}
.step{padding:1.4rem 1.3rem;background:var(--ink-2);border:1px solid var(--line-soft);border-radius:var(--r)}
.step span{
  display:inline-grid;place-items:center;width:34px;height:34px;margin-bottom:.8rem;
  border-radius:50%;background:rgba(233,184,36,.12);color:var(--gold);
  font-family:var(--f-head);font-weight:800;font-size:.95rem;border:1px solid var(--line);
}
.step p{margin:0;font-size:.88rem;color:var(--muted)}

/* Form */
.form-grid{display:grid;gap:2.4rem}
.contact-list{list-style:none;margin:1.6rem 0 0;padding:0;display:grid;gap:.85rem;font-size:.93rem}
.contact-list li{display:grid;gap:.1rem;padding-bottom:.85rem;border-bottom:1px solid var(--line-soft)}
.contact-list span{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);font-family:var(--f-head)}
.contact-list a{color:#E6E4DE;transition:color .2s}
.contact-list a:hover{color:var(--gold)}
.form{background:rgba(10,10,10,.6);border:1px solid var(--line);border-radius:var(--r);padding:1.4rem 1.25rem;box-shadow:var(--shadow)}
.field{margin-bottom:1rem;display:grid;gap:.4rem}
.field label{font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;font-family:var(--f-head);font-weight:600;color:#CFCDC7}
.field label em{color:var(--muted);letter-spacing:0;text-transform:none;font-size:.75rem}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:1rem;color:var(--white);
  background:#0F0F10;border:1px solid rgba(255,255,255,.14);border-radius:10px;
  padding:.85rem .9rem;transition:border-color .2s,background .2s;
}
.field textarea{resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#6E6D69}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);background:#131313}
.field.is-bad input,.field.is-bad select{border-color:#E4572E}
.err{color:#F08B6C;font-size:.78rem;min-height:0}
.form__note{margin:.8rem 0 0;font-size:.78rem;color:var(--muted);text-align:center}

/* FAQ */
.faq-wrap{max-width:840px}
.faq details{border-top:1px solid var(--line-soft);padding:.2rem 0}
.faq details:last-child{border-bottom:1px solid var(--line-soft)}
.faq summary{
  cursor:pointer;list-style:none;padding:1.05rem 2.2rem 1.05rem 0;position:relative;
  font-family:var(--f-head);font-weight:600;font-size:1rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:.35rem;top:1.45rem;width:9px;height:9px;
  border-right:2px solid var(--gold);border-bottom:2px solid var(--gold);
  transform:rotate(45deg);transition:transform .3s var(--ease);
}
.faq details[open] summary::after{transform:rotate(225deg)}
.faq details p{margin:0 0 1.1rem;color:var(--muted);font-size:.92rem;max-width:66ch}

/* Footer */
.foot{background:#070707;border-top:1px solid var(--line-soft);padding-block:2.6rem 1.4rem}
.foot__in{display:grid;gap:2rem}
.brand--foot{margin:0 0 .9rem}
.foot__tag{font-size:.85rem;color:var(--muted);margin:0}
.foot__cols{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
.foot__cols h4{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold);margin-bottom:.7rem;font-weight:600}
.foot__cols a{display:block;font-size:.87rem;color:var(--muted);padding:.18rem 0;transition:color .2s}
.foot__cols a:hover{color:var(--white)}
.foot__legal{
  margin-top:2rem;padding-top:1.1rem;border-top:1px solid rgba(255,255,255,.06);
  display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;font-size:.74rem;color:#6E6D69;
}

/* ---------- WhatsApp flotante ---------- */
.wa-float{
  position:fixed;right:16px;bottom:calc(72px + env(safe-area-inset-bottom));z-index:80;
  width:58px;height:58px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--wa);color:#04240F;
  box-shadow:0 10px 28px rgba(0,0,0,.45),0 0 0 0 rgba(37,211,102,.55);
  animation:pulse 2.8s infinite;
  transition:transform .25s var(--ease);
}
.wa-float svg{width:31px;height:31px}
.wa-float:hover{transform:scale(1.07)}
.wa-float__tip{
  position:absolute;right:calc(100% + 12px);white-space:nowrap;
  background:var(--white);color:#111;font-size:.8rem;font-weight:600;
  padding:.45rem .75rem;border-radius:8px;opacity:0;pointer-events:none;
  transform:translateX(6px);transition:opacity .25s,transform .25s var(--ease);
}
.wa-float:hover .wa-float__tip{opacity:1;transform:translateX(0)}
@keyframes pulse{
  0%{box-shadow:0 10px 28px rgba(0,0,0,.45),0 0 0 0 rgba(37,211,102,.5)}
  70%{box-shadow:0 10px 28px rgba(0,0,0,.45),0 0 0 16px rgba(37,211,102,0)}
  100%{box-shadow:0 10px 28px rgba(0,0,0,.45),0 0 0 0 rgba(37,211,102,0)}
}

/* ---------- Barra móvil ---------- */
.mobar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;gap:.5rem;padding:.55rem .7rem calc(.55rem + env(safe-area-inset-bottom));
  background:rgba(8,8,8,.94);backdrop-filter:blur(12px);border-top:1px solid var(--line);
  transform:translateY(110%);transition:transform .35s var(--ease);
}
.mobar.is-on{transform:translateY(0)}
.mobar__btn{
  flex:1;text-align:center;padding:.82rem .6rem;border-radius:100px;
  font-family:var(--f-head);font-weight:600;font-size:.9rem;
  border:1px solid rgba(255,255,255,.22);color:var(--white);
}
.mobar__btn--gold{background:var(--gold);color:#0A0A0A;border-color:var(--gold);flex:1.4}

/* ---------- Reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1;transform:none;transition:none}
  .wa-float{animation:none}
}

/* ---------- Responsive ---------- */
@media (min-width:600px){
  .hero__cta{flex-direction:row;flex-wrap:wrap}
  .trust{grid-template-columns:1fr 1fr}
  .mv{grid-template-columns:1fr 1fr}
  .stats{grid-template-columns:1fr 1fr;gap:2rem}
  .steps{grid-template-columns:1fr 1fr}
  .foot__cols{grid-template-columns:repeat(2,minmax(0,180px))}
}
@media (min-width:900px){
  .nav__links{display:flex}
  .nav__cta{display:inline-flex}
  .mobar{display:none}
  .wa-float{bottom:24px;right:24px;width:62px;height:62px}
  .cards{grid-template-columns:repeat(3,1fr)}
  .mv{grid-template-columns:repeat(3,1fr);gap:1.3rem}
  .stats{grid-template-columns:repeat(4,1fr)}
  .steps{grid-template-columns:repeat(4,1fr)}
  .split{grid-template-columns:1.05fr .95fr;gap:3.5rem;align-items:start}
  .form-grid{grid-template-columns:1fr 1fr;gap:3.5rem;align-items:start}
  .foot__in{grid-template-columns:1.2fr 1fr}
  .form{padding:2rem 1.9rem}
  .trust{grid-template-columns:repeat(3,1fr)}
}

/* Botón hamburguesa (oculto en escritorio) */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

/* Dibujo de las líneas del ícono hamburguesa */
.nav__hamburger,
.nav__hamburger::before,
.nav__hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--gold, #E9B824);
  position: relative;
  transition: background-color 0.3s ease, transform 0.3s ease;
}

.nav__hamburger::before,
.nav__hamburger::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 2px;
  background-color: var(--gold, #E9B824);
}

.nav__hamburger::before { top: -7px; }
.nav__hamburger::after { top: 7px; }

/* Animación del ícono a una "X" cuando el menú está abierto */
.nav.is-open .nav__hamburger {
  background-color: transparent;
}

.nav.is-open .nav__hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.nav.is-open .nav__hamburger::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Comportamiento responsivo para móviles */
@media (max-width: 768px) {
  .nav__toggle {
    display: block;
  }

  /* Ocultar menú por defecto en mobile */
  .nav__menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: #0f172a; /* Reemplaza con el color de fondo de tu barra de navegación */
    padding: 1.5rem;
    box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
  }

  /* Mostrar menú cuando JavaScript agrega la clase .is-open */
  .nav.is-open .nav__menu {
    display: block;
  }

  .nav__links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    text-align: center;
  }

  .nav__links .nav__cta {
    width: 100%;
    margin-top: 0.5rem;
  }
}