/* ====================================================================
   ESTILO F — "Editorial oscuro cálido": el dramatismo oscuro de A
   (charcoal cálido) + la terracota y formas redondeadas de B.
   Tema oscuro: aprovecha que sections.css es 100% variable-driven.
   ==================================================================== */
:root{
  --bg:#1d1a16;--surface:#272219;--ink:#f3efe7;--muted:#b3aa9c;--line:#3a342b;
  --accent:#c4683b;--accent-ink:#fff;--gold:#e0a83b;
  --radius:18px;--maxw:1180px;--pcar-ar:16/10;--btn-r:999px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:'Inter',system-ui,sans-serif;line-height:1.6}
img{max-width:100%;display:block}a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:'Sora',sans-serif;font-weight:700;line-height:1.08;letter-spacing:-.02em}

/* header */
.b-head{position:sticky;top:0;z-index:30;display:flex;justify-content:space-between;align-items:center;
  padding:16px 28px;background:rgba(20,18,14,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.b-logo{font-family:'Sora',sans-serif;font-weight:800;font-size:1.6rem;letter-spacing:-.04em;color:#fff}
.b-logo b{color:var(--accent)}
.b-logo img{height:34px;width:auto;display:block;filter:brightness(0) invert(1)}
.b-nav{display:flex;align-items:center}
.b-nav>a,.b-nav__item,.b-nav>.x-btn{margin-left:24px}
.b-nav a{font-weight:500;color:#cfc6b8}
.b-nav a:hover{color:#fff}
.b-nav .x-btn{padding:.6em 1.3em}
/* desplegable "Proyectos" (padre baja a la sección, hija va al listado) */
.b-nav__item{position:relative}
.b-nav__item::after{content:"";position:absolute;top:100%;left:0;right:0;height:26px}
.b-nav__item>a{display:inline-flex;align-items:center;gap:5px}
.b-nav__item>a::after{content:"▾";font-size:.7em;opacity:.6}
.b-sub{position:absolute;top:calc(100% + 18px);left:0;min-width:200px;display:none;
  background:rgba(20,18,14,.98);backdrop-filter:blur(8px);border:1px solid var(--line);border-radius:12px;
  padding:6px;box-shadow:0 16px 34px rgba(0,0,0,.5);z-index:40}
.b-nav__item:hover .b-sub,.b-nav__item:focus-within .b-sub{display:block}
.b-sub a{display:block;margin:0;padding:10px 14px;border-radius:8px;white-space:nowrap;color:#cfc6b8}
.b-sub a:hover{background:rgba(255,255,255,.08);color:#fff}

/* hero full-bleed */
.b-hero{position:relative;min-height:84vh;display:flex;align-items:flex-end;color:#fff;overflow:hidden}
.b-hero::before{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(to top,rgba(15,13,10,.9),rgba(15,13,10,.25) 55%,rgba(15,13,10,.45))}
.b-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.b-hero .inner{position:relative;z-index:2;padding:0 28px 64px;max-width:var(--maxw);margin:0 auto;width:100%}
.b-hero .eg{display:inline-block;background:var(--accent);color:#fff;padding:.45em 1em;border-radius:999px;font-size:.74rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin-bottom:20px}
.b-hero h1{font-size:clamp(2.6rem,6.5vw,5rem);max-width:18ch}
.b-hero .lead{margin-top:18px;max-width:46ch;font-size:1.15rem;color:#e8e2d6}
.b-hero .acts{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap}
.x-btn--w{background:#fff;color:#1d1a16}

/* stats — charcoal con números dorados */
.b-stats{max-width:var(--maxw);margin:-40px auto 0;padding:0 28px;position:relative;z-index:5;display:flex;gap:14px;flex-wrap:wrap}
.b-stat{flex:1;min-width:150px;background:var(--surface);border:1px solid var(--line);color:#fff;border-radius:var(--radius);padding:22px 24px}
.b-stat b{font-family:'Sora',sans-serif;font-size:1.8rem;display:block;color:var(--gold)}
.b-stat span{color:#b3aa9c;font-size:.9rem}

/* secciones: alternar fondo para dar aire en tema oscuro */
.sec:nth-of-type(even){background:#211d17}

/* proyectos: 2 columnas grandes */
#featuredProjects{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.card-project{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.35);transition:.18s}
.card-project:hover{transform:translateY(-5px);box-shadow:0 18px 44px rgba(0,0,0,.5)}
.card-project__body{padding:20px 24px 24px}
.card-project__body h3{font-size:1.35rem}
.tag{color:var(--accent);font-weight:700}

/* CTA + footer */
.b-cta{background:var(--accent);color:#fff;border-radius:var(--radius);margin:0 28px 70px;padding:60px 28px;text-align:center}
.b-cta h2{font-size:clamp(2rem,4vw,3rem)}
.b-cta p{color:#ffe6da;margin:14px 0 28px}
.b-foot{padding:46px 0;color:var(--muted);font-size:.9rem;border-top:1px solid var(--line)}
.b-foot .secwrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px}
.b-foot a{color:#f3efe7;font-weight:600}

/* hamburguesa (oculta en desktop) */
.b-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;color:#fff;z-index:40}
.b-toggle span{width:24px;height:2px;background:currentColor;display:block;transition:.25s}
.b-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.b-toggle.is-open span:nth-child(2){opacity:0}
.b-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:860px){
  #featuredProjects{grid-template-columns:1fr}
  .b-toggle{display:flex}
  .b-nav{position:absolute;top:100%;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;
    padding:6px 0;background:rgba(20,18,14,.98);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);box-shadow:0 14px 26px rgba(0,0,0,.4)}
  .b-nav.open{display:flex}
  .b-nav>a,.b-nav__item>a{margin:0;padding:14px 28px;color:#e8e2d6;border-top:1px solid var(--line)}
  .b-nav>a:first-child{border-top:0}
  .b-nav a:hover{color:#fff}
  .b-nav__item{margin:0;position:static}
  .b-nav__item::after,.b-nav__item>a::after{display:none}
  .b-sub{position:static;display:block;margin:0;padding:0;background:none;border:0;box-shadow:none;backdrop-filter:none}
  .b-sub a{padding:12px 28px 12px 46px;border-top:1px solid var(--line);color:#bdb4a4}
  .b-nav .x-btn{margin:12px 28px;justify-content:center}
}