:root{
  --ink:#111111;
  --ink-soft:#3a3a3a;
  --muted:#8a8a8a;
  --line:#e6e3dd;
  --paper:#f7f5f0;      /* blanco roto, aire heritage */
  --card:#ffffff;
  --accent:#8a1c22;     /* granate El Ganso, uso puntual */
  --ok:#1d6b3a;
  --radius:14px;
  --maxw:640px;
  --font:"Helvetica Neue",Helvetica,Arial,"Segoe UI",system-ui,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.5;
  min-height:100vh;
}

/* ---------- barra de progreso ---------- */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--ink);z-index:50;transition:width .45s cubic-bezier(.22,1,.36,1)}

/* ---------- cabecera ---------- */
.brand{
  display:flex;align-items:center;gap:12px;
  padding:26px 24px;max-width:var(--maxw);margin:0 auto;
}
.brand .logo{width:40px;height:auto;color:var(--ink);flex:none}
.brand .wm{font-weight:800;letter-spacing:.28em;font-size:15px;text-transform:uppercase}
.brand .tag{
  margin-left:auto;font-size:11px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);border:1px solid var(--line);padding:5px 10px;border-radius:999px;
}

/* ---------- lienzo ---------- */
.stage{
  max-width:var(--maxw);margin:0 auto;padding:8px 24px 120px;
  min-height:calc(100vh - 92px);display:flex;flex-direction:column;justify-content:center;
}
.step{animation:fade .5s cubic-bezier(.22,1,.36,1)}
@keyframes fade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}

.eyebrow{font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}
.q{font-size:clamp(26px,4.4vw,38px);line-height:1.12;font-weight:800;letter-spacing:-.01em;margin:0 0 10px}
.sub{font-size:16px;color:var(--ink-soft);margin:0 0 30px;max-width:52ch}
.hint{font-size:13px;color:var(--muted);margin-top:14px}

/* ---------- opciones ---------- */
.options{display:flex;flex-direction:column;gap:12px;margin:6px 0 8px}
.opt{
  display:flex;align-items:center;gap:14px;
  border:1.5px solid var(--line);background:var(--card);
  border-radius:var(--radius);padding:17px 18px;cursor:pointer;
  font-size:16px;font-weight:500;color:var(--ink);
  transition:border-color .15s,background .15s,transform .06s;
  text-align:left;width:100%;
}
.opt:hover{border-color:var(--ink)}
.opt:active{transform:scale(.995)}
.opt .box{
  width:22px;height:22px;flex:none;border:1.5px solid #cfccc4;border-radius:6px;
  display:grid;place-items:center;transition:all .15s;
}
.opt.multi .box{border-radius:6px}
.opt:not(.multi) .box{border-radius:50%}
.opt .box svg{width:13px;height:13px;opacity:0;transform:scale(.6);transition:all .15s;color:#fff}
.opt.on{border-color:var(--ink);background:#fbfaf7}
.opt.on .box{background:var(--ink);border-color:var(--ink)}
.opt.on .box svg{opacity:1;transform:none}
.opt .k{
  margin-left:auto;font-size:11px;color:var(--muted);border:1px solid var(--line);
  border-radius:6px;padding:2px 7px;font-weight:600
}

/* ---------- inputs ---------- */
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;font-weight:600}
.input,.select,.ta{
  width:100%;border:1.5px solid var(--line);background:var(--card);border-radius:12px;
  padding:15px 16px;font-size:16px;font-family:inherit;color:var(--ink);
  transition:border-color .15s;
}
.input:focus,.select:focus,.ta:focus{outline:none;border-color:var(--ink)}
.ta{resize:vertical;min-height:96px}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23111' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;padding-right:42px}
.err{color:var(--accent);font-size:13px;margin-top:10px;min-height:18px}

/* ---------- navegación ---------- */
.nav{
  position:fixed;left:0;right:0;bottom:0;background:linear-gradient(to top,var(--paper) 62%,transparent);
  padding:18px 24px 22px;
}
.nav-in{max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;gap:14px}
.btn{
  font-family:inherit;font-size:15px;font-weight:700;letter-spacing:.02em;
  border-radius:12px;padding:15px 30px;cursor:pointer;border:1.5px solid var(--ink);
  transition:all .15s;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#000}
.btn-primary:disabled{background:#c9c6bf;border-color:#c9c6bf;cursor:not-allowed}
.btn-ghost{background:transparent;color:var(--ink)}
.btn-ghost:hover{background:#efece5}
.spacer{flex:1}
.count{font-size:12px;color:var(--muted);letter-spacing:.08em}
.enter-hint{font-size:12px;color:var(--muted)}
.enter-hint b{color:var(--ink-soft)}

/* ---------- final ---------- */
.done{text-align:center;padding:20px 0}
.done .mark{width:74px;height:74px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;margin:0 auto 24px}
.done .mark svg{width:34px;height:34px}
.done h2{font-size:30px;font-weight:800;margin:0 0 10px}
.done p{color:var(--ink-soft);font-size:16px;max-width:44ch;margin:0 auto 8px}

/* ---------- ya respondido ---------- */
.notice{background:#fbf7ee;border:1px solid #eadfc4;border-radius:12px;padding:16px 18px;font-size:14px;color:#6b5a2e;margin-bottom:24px}

@media (max-width:520px){
  .brand{padding:20px 18px}
  .brand .tag{display:none}
  .stage{padding:4px 18px 130px}
}