/* =============================================================================
   brand.css — Estilos globales de la marca Portera
   Cargado por todas las páginas via Layout.astro (non-blocking media swap).
   ========================================================================== */

:root{
  --indigo:#252651;
  --gunmetal:#3D3D3D;
  --denim:#778DA9;
  --steel:#99A1A6;
  --ivory:#F8F4E3;
  --ivory-soft:#FBF9EE;
  --line:rgba(37,38,81,.12);
  --shadow-sm:0 1px 2px rgba(37,38,81,.06), 0 2px 8px rgba(37,38,81,.06);
  --shadow-md:0 4px 12px rgba(37,38,81,.08), 0 12px 28px rgba(37,38,81,.10);
  --r-sm:8px; --r-md:14px; --r-lg:22px;
  --space-1:.5rem; --space-2:1rem; --space-3:1.5rem; --space-4:2rem;
  --space-5:3rem; --space-6:4rem; --space-7:6rem;
}

/* ─── Reset y base ─── */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Mulish',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  font-size:16px;
  line-height:1.6;
  color:var(--gunmetal);
  background:var(--ivory);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}

/* ─── Tipografías ─── */
.brand-mark{font-family:'Sree Krushnadevaraya',serif;letter-spacing:.5px}
h1,h2,h3,h4{margin:0 0 .6em;color:var(--indigo);line-height:1.2;font-weight:600}
h1{font-family:'Sree Krushnadevaraya',serif;font-weight:400;letter-spacing:.5px}
h2,h3,h4{font-family:'Josefin Sans',sans-serif}
h1{font-size:clamp(2.4rem,7vw,4rem)}
h2{font-size:clamp(1.7rem,4.2vw,2.4rem);letter-spacing:.5px}
h3{font-size:clamp(1.15rem,2.4vw,1.35rem);letter-spacing:.3px}
p{margin:0 0 1em}
small{color:var(--denim)}

.eyebrow{
  font-family:'Josefin Sans',sans-serif;
  text-transform:uppercase;
  letter-spacing:2.5px;
  font-size:.78rem;
  font-weight:600;
  color:var(--denim);
  margin-bottom:.6rem;
  display:inline-block;
}

/* ─── Layout base ─── */
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 1.25rem}
section{padding:var(--space-6) 0}
@media(min-width:768px){section{padding:var(--space-7) 0}}

/* ─── Botones ─── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.55rem;
  padding:.95rem 1.6rem;
  font-family:'Josefin Sans',sans-serif;
  font-weight:600;font-size:1rem;letter-spacing:.5px;
  border-radius:999px;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
  text-align:center;line-height:1;
  min-height:48px;
}
.btn-primary{background:var(--indigo);color:var(--ivory);box-shadow:var(--shadow-sm)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);background:#2e3066}
.btn-light{background:var(--ivory);color:var(--indigo)}
.btn-light:hover{transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{background:transparent;color:var(--indigo);border:1.5px solid var(--indigo)}
.btn-ghost:hover{background:var(--indigo);color:var(--ivory)}
.btn-wa{background:#1f8a4c;color:#fff}
.btn-wa:hover{background:#1a7841;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn:disabled{opacity:.6;cursor:wait;transform:none}
.btn svg{flex:0 0 auto}

/* ─── Header ─── */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(248,244,227,.92);
  backdrop-filter:saturate(140%) blur(8px);
  -webkit-backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:.85rem 0}
.logo{display:inline-flex;align-items:center;gap:.55rem;color:var(--indigo)}
.logo-text{font-family:'Sree Krushnadevaraya',serif;font-size:1.6rem;letter-spacing:.5px;line-height:1;color:inherit}
.logo-mark{flex:0 0 auto}
.nav-cta{display:none}
@media(min-width:640px){.nav-cta{display:inline-flex}}

/* ─── Footer ─── */
.site-footer{
  background:var(--indigo);color:var(--ivory);
  padding:3rem 0 2rem;
}
.footer-grid{
  display:grid;gap:2rem;
  grid-template-columns:1fr;
}
@media(min-width:720px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
.footer-brand .logo{color:var(--ivory)}
.footer-brand .logo-text{color:var(--ivory)}
.footer-brand p{color:rgba(248,244,227,.78);max-width:24rem;margin-top:.5rem}
.footer-title{
  font-family:'Josefin Sans',sans-serif;
  font-size:.82rem;letter-spacing:2px;text-transform:uppercase;
  color:rgba(248,244,227,.7);margin-bottom:1rem;font-weight:600;
}
.footer-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.6rem}
.footer-list a{display:inline-flex;align-items:center;gap:.6rem;color:var(--ivory);opacity:.92}
.footer-list a:hover{opacity:1;text-decoration:underline}
.footer-bottom{
  margin-top:2.5rem;padding-top:1.3rem;
  border-top:1px solid rgba(248,244,227,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:1rem;
  font-size:.85rem;color:rgba(248,244,227,.65);
}

/* ─── Utilidades ─── */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.fade-in{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease}
.fade-in.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .fade-in{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto !important}
}