/* PETROHIDRO — base compartida por las 3 opciones */
:root{
  --ph-azul:#0081C3;        /* azul del logo (PETRO) */
  --ph-azul-portada:#0078B4;/* fondo de la portada del brochure: botones y texto blanco encima */
  --ph-azul-oscuro:#005A8C;
  --ph-celeste:#56ACDE;     /* HIDRO */
  --ph-claro:#91CDEF;       /* círculos de fondo del brochure */
  --ph-hielo:#EAF5FC;
  --ph-tinta:#0B2540;
  --ph-tinta-2:#33506B;
  --ph-borde:#D3E4F0;
  --ph-blanco:#FFFFFF;
  --wa:#189D4E;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ph-tinta);line-height:1.5;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
img{height:auto}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
[id]{scroll-margin-top:96px}
:focus-visible{outline:3px solid var(--ph-celeste);outline-offset:3px}
.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:12px;top:-60px;z-index:200;background:var(--ph-tinta);color:#fff;padding:10px 16px;border-radius:6px;text-decoration:none}
.skip:focus{top:12px}

/* ---------- Selector de idioma ---------- */
.lang{display:inline-flex;border:2px solid currentColor;border-radius:999px;padding:2px;gap:2px}
.lang button{border:0;background:transparent;cursor:pointer;min-width:44px;min-height:36px;border-radius:999px;font-weight:700;font-size:14px;letter-spacing:.5px;color:inherit}
.lang button[aria-pressed="true"]{background:currentColor}
.lang button[aria-pressed="true"] span{color:var(--lang-on,#fff)}

/* ---------- Menú móvil ---------- */
.nav-toggle{display:none;align-items:center;justify-content:center;width:48px;height:48px;border-radius:8px;border:2px solid currentColor;background:transparent;cursor:pointer}
.nav-toggle svg{width:24px;height:24px}
@media (max-width:960px){
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;width:100%;order:10}
  .site-nav.is-open{display:block}
  .site-nav ul{flex-direction:column;align-items:stretch!important;gap:0!important}
  .site-nav a{display:block;padding:14px 4px;border-top:1px solid rgba(127,160,190,.35)}
}

/* ---------- Redes ---------- */
.social{display:flex;flex-wrap:wrap;gap:10px}
.social a{width:46px;height:46px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;transition:transform .15s ease}
.social a:hover{transform:translateY(-2px)}
.social svg{width:21px;height:21px}

/* ---------- WhatsApp flotante ---------- */
.wa-float{position:fixed;right:18px;bottom:18px;z-index:150;display:inline-flex;align-items:center;gap:10px;background:var(--wa);color:#fff;text-decoration:none;font-weight:700;font-size:16px;padding:0 20px 0 14px;height:58px;border-radius:999px;box-shadow:0 8px 24px rgba(11,37,64,.28)}
.wa-float:hover{background:#12813F;color:#fff}
.wa-float svg{width:30px;height:30px;flex:0 0 auto}
@media (max-width:640px){
  .wa-float{padding:0;width:60px;height:60px;justify-content:center}
  .wa-float span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
}

/* ---------- Logos de clientes ---------- */
.logos{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:14px}
.logos li{background:#fff;border:1px solid var(--ph-borde);border-radius:10px;height:110px;display:flex;align-items:center;justify-content:center;padding:18px 22px}
/* Los logos del brochure vienen en baja resolución: se muestran más pequeños y en gris
   para que no se note el pixelado; recuperan su color al pasar el mouse.
   Cuando lleguen los logos originales en SVG/PNG grande, basta con reemplazar los archivos. */
.logos img{max-height:54px;max-width:100%;width:auto;object-fit:contain;filter:grayscale(1) brightness(.75) contrast(1.35);opacity:.85;transition:filter .2s,opacity .2s}
.logos li a{display:flex;align-items:center;justify-content:center;width:100%;height:100%;border-radius:8px}
.logos li:hover img,.logos li a:focus-visible img{filter:none;opacity:1}
.logos li:has(a):hover{border-color:var(--ph-azul-portada)}
/* Logos sin web oficial: siempre en gris */
.logos li:not(:has(a)) img,.logos li:not(:has(a)):hover img{filter:grayscale(1) brightness(.75) contrast(1.35);opacity:.85}
@media (hover:none){.logos img{filter:none;opacity:1}}
@media (max-width:480px){.logos{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.logos li{height:92px;padding:10px}}

/* ---------- Formularios ---------- */
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.form-grid .full{grid-column:1/-1}
@media (max-width:640px){.form-grid{grid-template-columns:minmax(0,1fr)}}
.field{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:15px}
.field input,.field select,.field textarea{width:100%;font-weight:400;font-size:16px;padding:14px;border:1px solid #8FAAC0;border-radius:8px;background:#fff;color:var(--ph-tinta)}
.field textarea{resize:vertical;min-height:120px}
.check{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.5}
.check input{width:20px;height:20px;margin:2px 0 0;flex:0 0 auto}
.form-status{font-weight:600;min-height:1.5em}

/* ---------- Fotos y espacios para foto ---------- */
.foto{width:100%;height:100%;object-fit:cover;border-radius:inherit}
.foto-pendiente{display:flex;align-items:center;justify-content:center;text-align:center;padding:20px;border:2px dashed #7FA9C9;background:var(--ph-hielo);color:var(--ph-azul-oscuro);font-weight:600;font-size:15px}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}