/* === Diseño base con variables === */
:root{
  --brand:#1d74f2;
  --brand-2:#0ea5e9;
  --success:#16a34a;
  --success-2:#22c55e;
  --danger:#c0392b;
  --text:#111827;
  --muted:#6b7280;
  --bg:#f5f7fb;
  --card:#ffffff;
  --border:#e5e7eb;
  --border-soft:#eef1f5;
  --radius:12px;
  --shadow:0 10px 30px rgba(2,6,23,.08);
  --space:12px;
  --input-focus:0 0 0 4px rgba(29,116,242,.12);
}

/* === Layout === */
*{ box-sizing:border-box }
body{
  font-family: Arial, sans-serif;
  color:#111827;
  background:#f5f7fb !important;
  min-height:100vh;
  display:flex; justify-content:center; align-items:center;
  padding:20px;
}

form{
  background:#ffffff !important;
  padding:30px;
  border-radius:12px;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
  max-width:560px; width:100%;
}

/* === Tipografía y secciones === */
h2{ margin:0 0 4px 0; font-size:26px }
.subtitle{ color:var(--muted); margin:0 0 16px 0; font-size:14px }
label{ color:var(--text); display:block; margin-top:14px }
label.small{ font-size:0.9em; color:var(--muted) }

.section-title{
  margin:18px 0 6px; font-weight:700;
}
.hr{ height:1px; background:rgba(2,6,23,.06); margin:14px 0 }

/* === Controles === */
input[type="text"], input[type="email"], select{
  width:100%;
  padding:12px 12px;
  margin:8px 0 4px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  outline:none;
  transition:border .15s, box-shadow .15s, background .15s;
}
input:focus, select:focus{ border-color:var(--brand); box-shadow:var(--input-focus) }
select:disabled{ background:#eee; color:#777; cursor:not-allowed; }

/* errores */
.error{ color:var(--danger); font-size:0.95em; min-height:1.2em; }
.field-error{
  color:var(--danger); font-size:0.9em; min-height:1.1em;
  display:flex; gap:6px; align-items:flex-start;
}
.field-error::before{ content:""; line-height:1 }
input.invalid{ border:1px solid var(--danger) }

/* === Botón primario === */
#submitBtn{
  width:100%;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#fff; font-weight:700; border:none;
  padding:12px 16px; margin-top:20px; /* más espacio con reCAPTCHA */
  border-radius:12px; cursor:pointer;
  box-shadow:0 10px 24px rgba(29,116,242,.24);
  transition:transform .08s, filter .15s, box-shadow .15s;
  display:block;           /* centrado horizontal */
  margin-left:auto;
  margin-right:auto;
}
#submitBtn:hover{ filter:brightness(1.03) }
#submitBtn:active{ transform:translateY(1px) scale(.998) }
#submitBtn:disabled{ filter:grayscale(.2) brightness(.9); cursor:not-allowed }

/* === Botón moderno de subir archivo === */
.visually-hidden{
  position:absolute !important; width:1px; height:1px;
  padding:0; margin:-1px; overflow:hidden;
  clip: rect(0 0 0 0); white-space:nowrap; border:0;
}
.upload-wrap{
  margin:6px 0 2px;
  display:flex; justify-content:center;
}
.upload-btn{
  --btn-radius: 12px;
  position: relative;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 12px 16px;
  border-radius: var(--btn-radius);
  background: linear-gradient(135deg,#4f46e5,#0ea5e9);
  color: #fff; font-weight: 700;
  cursor: pointer; user-select: none;
  box-shadow: 0 8px 20px rgba(14,165,233,.25);
  transition: transform .15s ease, box-shadow .2s ease, filter .2s ease;
  overflow: hidden;
}
.upload-btn:hover{
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(14,165,233,.32);
  filter: brightness(1.02);
}
.upload-btn:focus-visible{
  outline: none; box-shadow:0 0 0 4px rgba(14,165,233,.22), 0 0 0 1px #0ea5e9;
}
.upload-btn .btn-shimmer{
  content:""; position:absolute; inset:0;
  background: linear-gradient(110deg, transparent 20%, rgba(255,255,255,.18) 45%, transparent 60%);
  transform: translateX(-120%); transition: transform .6s ease;
}
.upload-btn:hover .btn-shimmer{ transform: translateX(120%) }
.upload-icon{ width: 20px; height: 20px; fill: currentColor; opacity: .95; }
.upload-btn.has-file{
  background: linear-gradient(135deg,var(--success-2),var(--success));
  box-shadow: 0 8px 20px rgba(34,197,94,.28);
  animation: pop .25s ease-out;
}
@keyframes pop{ 0%{transform:scale(.98)} 70%{transform:scale(1.02)} 100%{transform:scale(1)} }

/* info archivo */
.helper{ color:var(--muted); font-size:12px; text-align:center; margin-top:6px }
.file-info{
  margin-top: 8px; font-size: .92em; color: var(--text);
  text-align:center;
}
.file-info::before{ content:" "; }

/* === Fix robusto para centrar reCAPTCHA === */
.captcha-box{
  display: grid !important;
  place-items: center !important;   /* centra horizontal y vertical */
  width: 100%;
  text-align: center !important;    /* asegura centrado si el recaptcha es inline */
  margin-top: 20px;
}

.captcha-box > * {
  margin: 0 auto !important;        /* fuerza centrado en hijos directos */
}

.g-recaptcha{
  display: inline-block !important;
  float: none !important;
  margin: 0 auto !important;
  transform-origin: center;
}

html, body {
  background-color: #ffffff !important;
  color: #111827 !important;
  -webkit-appearance: none !important;
  forced-color-adjust: none !important;
}