/* ============================================================
   base.css — reset, variables globales, tipografía y
   componentes compartidos (botones, formularios, reveal).
   Se carga SIEMPRE en primer lugar.
   ============================================================ */

:root{
  /* Color */
  --bg:#05060d;
  --bg-2:#0a0a18;
  --orange:#e8673a;
  --orange-soft:#f2895f;
  --white:#ffffff;
  --t-90:rgba(255,255,255,.92);
  --t-70:rgba(255,255,255,.72);
  --t-50:rgba(255,255,255,.5);
  --t-35:rgba(255,255,255,.35);
  --t-18:rgba(255,255,255,.18);
  --line:rgba(255,255,255,.1);
  --line-soft:rgba(255,255,255,.06);
  --glass:rgba(14,16,30,.55);
  --glass-2:rgba(20,22,40,.5);
  /* Tipografía */
  --serif:Georgia,'Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,'SF Mono',SFMono-Regular,Menlo,Consolas,'Liberation Mono',monospace;
  /* Movimiento y layout */
  --ease:cubic-bezier(.2,.9,.3,1);
  --maxw:1200px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:auto;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--t-90);
  font-family:var(--sans);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:rgba(232,103,58,.35);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* ---------- 3D CANVAS + VIGNETTE ---------- */
#scene{position:fixed;inset:0;z-index:0;display:block}
#vignette{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:
    radial-gradient(120% 90% at 50% 40%, transparent 0%, transparent 42%, rgba(3,4,10,.55) 78%, rgba(2,3,8,.9) 100%),
    linear-gradient(to bottom, rgba(3,4,10,.55) 0%, transparent 18%, transparent 82%, rgba(2,3,8,.75) 100%);
}
#grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

#progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:60;
  background:linear-gradient(90deg,#c9451d,var(--orange),#ffb27a);
  box-shadow:0 0 12px rgba(232,103,58,.7);
  transition:width .08s linear;
}

main,nav,footer{position:relative;z-index:10}

/* ---------- LAYOUT GLOBAL ---------- */
section{position:relative;padding:clamp(80px,11vh,140px) clamp(18px,4vw,44px)}
.wrap{max-width:var(--maxw);margin:0 auto;width:100%}
.kicker{
  font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--orange);margin-bottom:20px;display:inline-flex;align-items:center;gap:10px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--orange);opacity:.6}
h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.08;color:var(--white)}
.em{font-style:italic;color:var(--orange)}
.em-u{font-style:italic;color:var(--orange);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:6px;text-decoration-color:rgba(232,103,58,.55)}

/* ---------- REVEAL (scroll-in) ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}
.reveal.d2{transition-delay:.16s}
.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}

/* ---------- BOTONES (compartido) ---------- */
.btn{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.04em;
  padding:10px 18px;border-radius:999px;cursor:pointer;border:1px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s,color .3s;
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
}
.btn-primary{
  background:linear-gradient(180deg,var(--orange-soft),var(--orange));
  color:#1a0d06;font-weight:600;box-shadow:0 6px 22px rgba(232,103,58,.32);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(232,103,58,.5)}
.btn-ghost{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--white)}
.btn-ghost:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}

/* ---------- FORMULARIO EMAIL (compartido: hero, magnet, final) ---------- */
.email-form{display:flex;gap:10px;max-width:480px;background:var(--glass);border:1px solid var(--line);
  border-radius:999px;padding:6px 6px 6px 20px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transition:border-color .3s,box-shadow .3s}
.email-form:focus-within{border-color:rgba(232,103,58,.5);box-shadow:0 0 0 4px rgba(232,103,58,.1)}
.email-form input{flex:1;background:transparent;border:none;outline:none;color:var(--white);font-family:var(--sans);font-size:15px}
.email-form input::placeholder{color:var(--t-35)}
.email-form .btn-primary{padding:11px 22px}
.form-meta{font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;color:var(--t-35);margin-top:16px}
.form-meta span{color:var(--t-50)}

/* ---------- CABECERA DE SECCIÓN (compartido) ---------- */
.sec-head{max-width:60ch;margin-bottom:56px}
.sec-head h2{font-size:clamp(30px,4.6vw,54px);letter-spacing:-.01em}
.sec-head p{color:var(--t-50);font-size:clamp(15px,1.7vw,18px);margin-top:18px;max-width:52ch}