/* ============================================================
   Examen de capacitación — estilos
   ============================================================ */
:root{
  --oro:#d4a017; --oro-osc:#b8860b; --acero:#0f1c2e; --acero2:#1b2c44;
  --tinta:#0f1c2e; --gris:#475569; --suave:#64748b; --borde:#e2e8f0;
  --fondo:#f5f7fa; --blanco:#fff; --ok:#16a34a; --radio:16px;
  --sombra:0 4px 6px -1px rgba(15,28,46,.07),0 2px 4px -2px rgba(15,28,46,.05);
  --sombra-lg:0 22px 44px -14px rgba(15,28,46,.28);
  --trans:.25s cubic-bezier(.4,0,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:'Inter',system-ui,sans-serif;color:var(--tinta);background:var(--fondo);line-height:1.6;-webkit-font-smoothing:antialiased;}
h1,h2,h3,.font-h{font-family:'Plus Jakarta Sans',sans-serif;line-height:1.2;}

/* Header */
.ex-header{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  background:var(--acero);color:#fff;padding:16px 24px;}
.ex-logo{display:inline-flex;align-items:center;gap:11px;font-family:'Plus Jakarta Sans';font-weight:800;font-size:1.05rem;}
.ex-logo strong{color:var(--oro);}
.ex-mark{width:40px;height:40px;display:grid;place-items:center;background:#fff;border-radius:10px;overflow:hidden;padding:2px;}
.ex-mark img{width:100%;height:100%;object-fit:contain;}
.ex-tag{font-size:.8rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#cbd5e1;
  background:rgba(255,255,255,.08);padding:6px 14px;border-radius:999px;}

/* Layout */
.ex-main{max-width:760px;margin:0 auto;padding:30px 18px 50px;}
.ex-card{background:#fff;border:1px solid var(--borde);border-radius:var(--radio);box-shadow:var(--sombra);padding:30px 30px 34px;}
.ex-sub{color:var(--gris);font-size:1.02rem;}

/* Intro / código de acceso */
.ex-intro{text-align:center;}
.ex-intro h1{font-size:1.9rem;font-weight:800;margin-bottom:10px;}
.ex-candado{width:74px;height:74px;margin:0 auto 14px;display:grid;place-items:center;border-radius:50%;
  background:rgba(212,160,23,.14);color:var(--oro-osc);font-size:1.9rem;}
.ex-form-cod{max-width:380px;margin:22px auto;text-align:left;}
.ex-form-cod label{display:block;font-weight:700;margin-bottom:8px;color:var(--acero);}
.ex-form-cod input{width:100%;padding:14px 16px;border:1.5px solid var(--borde);border-radius:11px;font-size:1.15rem;
  font-family:'Plus Jakarta Sans',sans-serif;letter-spacing:2px;text-transform:uppercase;text-align:center;margin-bottom:14px;}
.ex-form-cod input:focus{outline:none;border-color:var(--oro);box-shadow:0 0 0 4px rgba(212,160,23,.15);}
.ex-form-cod .ex-btn{width:100%;}
.ex-areas{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:24px 0 18px;}
.ex-area{display:flex;flex-direction:column;gap:4px;border:1.5px solid var(--borde);border-radius:14px;padding:20px 18px;
  color:var(--tinta);text-decoration:none;transition:var(--trans);background:#fff;}
.ex-area:hover{border-color:var(--oro);transform:translateY(-4px);box-shadow:var(--sombra-lg);}
.ex-area .ico{font-size:2rem;}
.ex-area h3{font-size:1.2rem;margin-top:6px;}
.ex-area p{color:var(--suave);font-size:.9rem;flex-grow:1;}
.ex-area .ir{margin-top:8px;color:var(--oro-osc);font-weight:700;font-size:.92rem;}

.ex-aviso{display:flex;align-items:center;gap:10px;background:#eff6ff;border:1px solid #bfdbfe;color:#1e3a8a;
  padding:12px 16px;border-radius:10px;font-size:.92rem;margin-top:8px;}
.ex-aviso i{color:#2563eb;}

/* Encabezado del examen */
.ex-volver,.ex-volver-fin{display:inline-flex;align-items:center;gap:7px;color:var(--suave);font-weight:600;
  font-size:.9rem;text-decoration:none;margin-bottom:16px;transition:var(--trans);}
.ex-volver:hover{color:var(--oro-osc);}
.ex-titulo{display:flex;align-items:center;gap:16px;margin-bottom:18px;}
.ex-area-ico{flex:none;width:58px;height:58px;display:grid;place-items:center;border-radius:14px;
  background:var(--acero);color:var(--oro);font-size:1.5rem;}
.ex-titulo h1{font-size:1.6rem;font-weight:800;}

/* Progreso */
.ex-progreso-wrap{display:flex;align-items:center;gap:12px;margin-bottom:26px;}
.ex-progreso{flex:1;height:9px;background:var(--borde);border-radius:999px;overflow:hidden;}
.ex-progreso-barra{height:100%;width:0;background:linear-gradient(90deg,var(--oro),var(--oro-osc));transition:width .3s ease;}
.ex-progreso-txt{flex:none;font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:.9rem;color:var(--acero);min-width:48px;text-align:right;}

/* Preguntas */
.ex-preg{border:1.5px solid var(--borde);border-radius:14px;padding:18px 20px;margin-bottom:16px;transition:var(--trans);}
.ex-preg.ok{border-color:#bbf7d0;background:#f7fef9;}
.ex-preg legend{font-family:'Plus Jakarta Sans';font-weight:700;color:var(--acero);font-size:1.05rem;
  display:flex;align-items:flex-start;gap:11px;padding:0 4px;}
.ex-preg .num{flex:none;width:26px;height:26px;border-radius:7px;background:var(--acero);color:var(--oro);
  font-size:.85rem;display:grid;place-items:center;font-weight:800;margin-top:1px;}
.ex-op{display:flex;align-items:center;gap:12px;padding:11px 14px;margin-top:10px;border:1.5px solid var(--borde);
  border-radius:10px;cursor:pointer;transition:var(--trans);}
.ex-op:hover{border-color:var(--oro);background:#fffdf5;}
.ex-op input{position:absolute;opacity:0;}
.ex-op .marca{flex:none;width:20px;height:20px;border:2px solid #cbd5e1;border-radius:50%;display:grid;place-items:center;transition:var(--trans);}
.ex-op input:checked + .marca{border-color:var(--oro);background:var(--oro);}
.ex-op input:checked + .marca::after{content:"";width:8px;height:8px;background:#fff;border-radius:50%;}
.ex-op input:checked ~ .txt{font-weight:600;color:var(--acero);}
.ex-op:has(input:checked){border-color:var(--oro);background:#fffaf0;}

/* Botón */
.ex-btn{width:100%;margin-top:10px;display:inline-flex;align-items:center;justify-content:center;gap:9px;
  background:var(--oro);color:#1a1300;border:none;border-radius:11px;padding:15px;font-family:'Plus Jakarta Sans';
  font-size:1.05rem;font-weight:700;cursor:pointer;transition:var(--trans);box-shadow:0 10px 22px -8px rgba(212,160,23,.7);}
.ex-btn:hover{background:var(--oro-osc);transform:translateY(-2px);}
.ex-btn:disabled{opacity:.7;cursor:wait;transform:none;}
.ex-nota{color:#dc2626;font-weight:600;text-align:center;margin-top:12px;min-height:1.2em;}

/* Pantalla final */
.ex-final{text-align:center;}
.ex-check{width:84px;height:84px;margin:0 auto 10px;display:grid;place-items:center;border-radius:50%;
  background:#dcfce7;color:var(--ok);font-size:2.4rem;}
.ex-final h1{font-size:1.7rem;font-weight:800;margin-bottom:10px;}
.ex-codigo{margin:22px auto;max-width:420px;background:var(--acero);color:#fff;border-radius:14px;padding:22px;}
.ex-codigo .et{display:block;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:#94a3b8;margin-bottom:8px;}
.ex-codigo strong{display:block;font-family:'Plus Jakarta Sans';font-size:2rem;letter-spacing:2px;color:var(--oro);}
.ex-copiar{margin-top:14px;background:rgba(255,255,255,.1);color:#fff;border:1px solid rgba(255,255,255,.2);
  padding:9px 18px;border-radius:9px;font-weight:600;cursor:pointer;transition:var(--trans);}
.ex-copiar:hover{background:rgba(255,255,255,.2);}
.ex-volver-fin{justify-content:center;margin:22px auto 0;color:var(--oro-osc);}

/* Footer */
.ex-footer{text-align:center;color:var(--suave);font-size:.85rem;padding:24px 16px 36px;}

@media (max-width:560px){
  .ex-card{padding:22px 18px 26px;}
  .ex-titulo h1{font-size:1.35rem;}
}