:root{
  --blue-900:#002855;
  --blue:#009fe3;
  --ink:#153243;
  --muted:#f4f6f8;
  --bg:#ffffff;
  --card-r:16px;
  --shadow:0 12px 28px rgba(2,12,27,.08);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, "Helvetica Neue", Arial;
  color:var(--ink);
  background:linear-gradient(180deg,var(--muted),#fff);
  -webkit-font-smoothing:antialiased;
  padding-top:72px;
}
.container{max-width:920px;margin:24px auto;padding:0 16px}
.card{background:var(--bg);border-radius:var(--card-r);box-shadow:var(--shadow);border:1px solid rgba(2,12,27,.05)}
.topbar{position:fixed;top:0;left:0;right:0;background:linear-gradient(90deg,var(--blue-900),var(--blue));color:#fff;z-index:1000;box-shadow:0 6px 20px rgba(0,0,0,.12)}
.topbar__inner{max-width:920px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;gap:12px}
.brand{display:flex;align-items:center;gap:10px}
.logo{width:44px;height:44px;border-radius:50%;object-fit:cover;background:#fff;border:3px solid rgba(255,255,255,.6)}
.brand__text{display:flex;flex-direction:column;line-height:1.1}
.brand__text strong{font-size:.95rem}
.brand__text span{font-size:.78rem;opacity:.9}

.wizard-box{padding:18px}
.wizard-head h1{margin:4px 0 6px;font-size:1.25rem;color:var(--blue-900)}
.wizard-head p{margin:0 0 10px;color:#4a6170}

/* Stepper with line and checks */
.stepper{position:relative;list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:0;padding:14px 8px}
.stepper::before{content:"";position:absolute;left:42px;right:42px;top:29px;height:2px;background:#d9e4ea;z-index:0}
.stepper li{position:relative;display:flex;align-items:center;gap:10px;z-index:1}
.stepper .circle{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;background:#eaf3f8;color:var(--blue-900);font-weight:700;border:2px solid #d9e4ea}
.stepper small{font-weight:700;opacity:.7}
.stepper li.active .circle{background:linear-gradient(90deg,var(--blue-900),var(--blue));color:#fff;border-color:transparent}
.stepper li.done .circle{background:linear-gradient(90deg,var(--blue-900),var(--blue));color:#fff;border-color:transparent}
.stepper li.done .circle::before{content:"✓";font-weight:900}
.stepper li.active small{opacity:1}
.stepper li.done small{opacity:1}

/* Form */
.form-card{padding:16px}
fieldset{border:none;margin:0 0 16px;padding:0}
legend{font-weight:700;color:var(--blue-900);margin-bottom:10px;border-bottom:1px solid rgba(0,0,0,.06);padding-bottom:8px}
.row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.col{display:flex;flex-direction:column}
label{font-size:.95rem;color:#304a5a;margin-bottom:6px}
input[type="text"],input[type="email"],input[type="tel"],input[type="date"],select,textarea{
  padding:12px 12px;border-radius:12px;border:1px solid #d6e6ef;background:#fff;font-size:1rem;
  transition:border-color .18s, box-shadow .18s;
}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 6px 20px rgba(0,159,227,.14)}
input.invalid,select.invalid,textarea.invalid{border-color:#c62828;box-shadow:0 6px 18px rgba(198,40,40,.12)}
textarea{min-height:110px;resize:vertical}
.hidden{display:none!important}
.checkboxes{display:flex;gap:12px;flex-wrap:wrap;margin:8px 0 12px}
.inline{display:flex;gap:12px;align-items:center;margin:8px 0}
.is-disabled{opacity:.6;cursor:not-allowed}
.hint{font-size:.9rem;color:#546e7a;margin-top:6px}

.right{text-align:right;margin-top:8px;color:var(--blue-900);font-weight:700}

/* Companion block */
.companion-block{background:#f7fbff;border:1px solid rgba(0,159,227,.08);padding:12px;border-radius:12px;margin-bottom:12px}
.companion-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.remove-companion{border:none;background:transparent;color:#d7263d;font-weight:700;cursor:pointer}

/* Buttons */
.wizard-actions{display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:10px;margin-top:10px}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(90deg,var(--blue-900),var(--blue));
  border:none;color:#fff;padding:12px 18px;border-radius:12px;cursor:pointer;
  font-weight:700;box-shadow:0 10px 28px rgba(0,159,227,.18);text-decoration:none
}
.btn-primary:hover{filter:brightness(1.04)}
.btn-lg{padding:14px 22px}
.btn-outline{
  background:transparent;border:1.5px solid var(--blue);color:var(--blue);
  padding:10px 14px;border-radius:10px;cursor:pointer;font-weight:700
}
.btn-outline:hover{background:rgba(0,159,227,.08)}

/* Summary */
.summary{padding:14px}
.summary h3{margin:0 0 8px;color:var(--blue-900)}
.summary-table{width:100%;border-collapse:separate;border-spacing:0 8px}
.summary-table th{width:40%;text-align:left;color:var(--blue-900)}
.summary-table td,.summary-table th{background:#f8fbff;padding:10px 12px;border-radius:10px;border:1px solid rgba(0,159,227,.08)}

/* Responsive */
@media (max-width:900px){
  .row{grid-template-columns:1fr}
  .wizard-actions{grid-template-columns:1fr 1fr;gap:8px}
}

.mensaje-error {
  margin-top: 10px;
  padding: 10px 14px;
  border: 1px solid #c62828;
  background: #ffebee;
  color: #b71c1c;
  border-radius: 8px;
  font-size: 0.95rem;
  animation: aparecer .3s ease-out;
}

@keyframes aparecer {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}