/* Base */
*{box-sizing:border-box}
:root{
  --bg:#0b0b0b;
  --bg-soft:#131313;
  --text:#f4f4f4;
  --muted:#c7c7c7;
  --brand:#e63946;
  --brand-2:#ffd166;
}
html,body{margin:0;padding:0}
body{
  font-family: 'Montserrat',system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,sans-serif;
  color:var(--text);
  background:#0a0a0a;
  line-height:1.6;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none}
.container{width:min(1100px,92vw);margin-inline:auto}

/* Header + Hero */
.site-header{position:relative;color:white}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:12px 0;gap:16px}
.brand{font-weight:800;letter-spacing:.5px;color:white}
.nav{display:flex;gap:18px}
.nav a{color:white;opacity:.9}
.nav a:hover{opacity:1}
.nav-toggle{display:none;background:none;border:none;color:white;font-size:1.5rem;cursor:pointer}

.hero{position:relative;min-height:68vh;display:grid;place-items:center;overflow:hidden;border-bottom:1px solid #222}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.45),rgba(0,0,0,.75))}
.hero-content{position:relative;text-align:center;padding:48px 0}
.hero-content h1{font-size:clamp(28px,4vw,54px);margin:0 0 8px}
.hero-content p{color:var(--muted);margin:0 0 20px}
.btn{
  display:inline-block;background:var(--brand);color:white;border-radius:999px;
  padding:10px 18px;font-weight:600;transition:transform .12s ease,opacity .2s ease
}
.btn:hover{transform:translateY(-1px);opacity:.95}

/* Sections */
.section{padding:56px 0}
.section-muted{background:var(--bg-soft);border-top:1px solid #1f1f1f;border-bottom:1px solid #1f1f1f}
h2{font-size:clamp(22px,2.6vw,34px);margin:0 0 18px}

/* Split block */
.split{display:grid;grid-template-columns:1fr 1.05fr;gap:28px;align-items:center}
.split-text p{color:var(--muted)}

/* Grid 4 */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.links-cards .card{position:relative;border-radius:18px;overflow:hidden;border:1px solid #222;background:#0e0e0e}
.links-cards .card span{
  position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.6);
  padding:6px 10px;border-radius:999px;color:#fff;font-weight:600;font-size:.9rem
}
.links-cards .card img{aspect-ratio:4/3;object-fit:cover;filter:saturate(.9);transition:transform .25s ease}
.links-cards .card:hover img{transform:scale(1.04)}

/* Videos */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.video{position:relative;border-radius:16px;overflow:hidden;border:1px solid #222;background:#0e0e0e}
.video iframe{width:100%;aspect-ratio:16/9;border:0;display:block}

/* Form */
.form{display:grid;gap:12px;max-width:760px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form input,.form textarea{
  width:100%;padding:12px 14px;border-radius:12px;border:1px solid #2a2a2a;background:#0f0f0f;color:#fff
}
.form input::placeholder,.form textarea::placeholder{color:#8b8b8b}
.form button.btn{justify-self:start}

/* Footer */
.site-footer{padding:30px 0;background:#0a0a0a;border-top:1px solid #1a1a1a}
.footer-grid{display:flex;justify-content:space-between;align-items:center;gap:20px}
.footer-links{display:flex;gap:16px}
.footer-links a{color:#ddd}

/* WhatsApp FAB */
.whatsapp-fab{
  position:fixed;right:18px;bottom:18px;background:#25D366;color:#0a0a0a;font-weight:800;
  padding:12px 16px;border-radius:999px;border:2px solid #0a0a0a;box-shadow:0 6px 24px rgba(0,0,0,.35);
  z-index:1000
}

/* Responsive */
@media (max-width: 900px){
  .split{grid-template-columns:1fr;gap:18px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .video-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .nav{display:none;position:absolute;right:16px;top:56px;background:#0f0f0f;border:1px solid #242424;border-radius:14px;padding:10px 12px;flex-direction:column}
  .nav a{padding:8px 6px}
  .nav-toggle{display:inline-block}
  .nav.open{display:flex}
}

.footer {
  background:#111;
  padding: 20px 40px;
  color: #ccc;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}
.social-links a {
  margin-left: 15px;
  font-size: 1.5rem;
  color: #ccc;
  transition: color 0.3s ease;
}
.social-links a:hover {
  color: #fff;
}
.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 60px;
  height: 60px;
  background: #25d366; /* verde oficial WhatsApp */
  border-radius: 50%;
  box-shadow: 2px 2px 8px rgba(0,0,0,.3);
  z-index: 9999;

  display: flex;
  align-items: center;
  justify-content: center;

  transition: transform .2s ease, background-color .3s ease;
}
.whatsapp-float svg {
  width: 32px;
  height: 32px;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  background: #1ebe5c;
}

/* más chico en mobile */
@media (max-width: 480px){
  .whatsapp-float{ width: 50px; height: 50px; }
  .whatsapp-float svg{ width: 26px; height: 26px; }
}

:root { --header-h: 64px; }

.site-header{
  position: sticky; top:0; z-index:1000;
  background:#0f0f0f; border-bottom:1px solid #1f1f1f;
}
.nav-bar{
  max-width:1200px; margin:0 auto; padding:0 16px;
  height:var(--header-h);
  display:flex; align-items:center; justify-content:space-between;
}
.brand{ color:#fff; text-decoration:none; font-weight:800; letter-spacing:.3px; }

.nav-desktop{ display:none; gap:24px; }
.nav-desktop a{
  color:#cfcfcf; text-decoration:none; font-weight:600;
}
.nav-desktop a:hover{ color:#fff; }

/* Botón hamburguesa */
.nav-toggle{
  width:44px; height:44px; display:grid; place-items:center;
  color:#eaeaea; background:#1a1a1a; border:1px solid #262626;
  border-radius:10px; cursor:pointer;
}
.nav-toggle:focus-visible{ outline:2px solid #33c759; outline-offset:2px; }

/* Menú móvil desplegable (drawer) */
.mobile-menu{
  position:fixed; left:0; right:0; top:var(--header-h); bottom:0;
  background:#0f0f0f; padding:16px 20px;
  display:flex; flex-direction:column; gap:12px;

  /* estado cerrado */
  transform:translateY(-110%);
  opacity:0; visibility:hidden; pointer-events:none;
  transition:transform .25s ease, opacity .2s ease, visibility 0s linear .25s;
}
.mobile-menu.is-open{
  transform:translateY(0);
  opacity:1; visibility:visible; pointer-events:auto;
  transition:transform .25s ease, opacity .2s ease;
}
.mobile-menu a{
  display:block; padding:14px 12px; border-radius:10px;
  color:#e8e8e8; text-decoration:none; font-weight:700; background:#151515;
  border:1px solid #232323;
}
.mobile-menu a:hover{ background:#1b1b1b; }

/* Evitar scroll del body cuando el menú móvil está abierto */
body.nav-open{ overflow:hidden; }

/* Escritorio */
@media (min-width: 900px){
  .nav-desktop{ display:flex; }
  .nav-toggle, .mobile-menu{ display:none; }
}

/* Menú móvil cerrado por defecto */
.mobile-menu{
  display:none;
  position:fixed;
  inset:56px 0 0 0;       /* debajo del header */
  background:#111;
  padding:16px;
  z-index:1000;           /* por encima del contenido */
  flex-direction:column;
  gap:12px;
}
.mobile-menu.is-open{ display:flex; }

/* Asegurar que el header quede por encima de overlays */
.site-header{ position:sticky; top:0; z-index:1100; }