/* ---------- Paleta y variables ---------- */
:root {
  --primary: #f9c300;          /* Amarillo corporativo */
  --secondary: #003366;        /* Azul oscuro sobrio */
  --bg-1: #ffffff;             /* Fondo blanco elegante */
  --bg-2: #f5f5f5;             /* Gris claro para degradado */
  --card-bg: rgba(255,255,255,.85);   /* Glass-card */
  --card-border: rgba(0,0,0,.08);
  --text: #111;
  --muted: #555;
  --radius: 20px;
  --shadow: 0 14px 32px rgba(0,0,0,.12);
}

*{
  box-sizing:border-box;
  margin:0;
  padding:0;
  font-family:"Inter",system-ui,sans-serif;
}

/* ---------- Layout base ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background:linear-gradient(135deg,var(--bg-2) 0%,var(--bg-1) 100%);
  color:var(--text);
  overflow-x:hidden;
}

/* ---------- Encabezado ---------- */
header{
  padding:2.5rem 1rem 3rem;
  text-align:center;
  position:relative;
}

header img{
  width:220px;
  max-width:90%;
  filter:drop-shadow(0 4px 8px rgba(0,0,0,.15));
}

.hero-title{
  margin-top:.9rem;
  font-size:1.55rem;
  font-weight:600;
  color:var(--secondary);
  text-shadow:0 2px 4px rgba(0,0,0,.18);
}

/* ---------- Tarjeta principal ---------- */
.card{
  width:clamp(320px,92%,460px);
  margin:-76px auto 2rem;
  padding:2.2rem 1.6rem 2.4rem;
  background:var(--card-bg);
  border:1px solid var(--card-border);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

/* ---------- Inputs ---------- */
.input-box{
  width:100%;
  padding:.95rem 1.15rem;
  font-size:1.05rem;
  border:1px solid #ccc;
  border-radius:12px;
  transition:border-color .2s, box-shadow .2s;
}

.input-box:focus{
  border-color:var(--primary);
  outline:none;
  box-shadow:0 0 0 3px rgba(249,195,0,.25);
}

/* ---------- Botones ---------- */
.btn{
  width:100%;
  padding:1rem;
  margin-top:1.15rem;
  font-size:1.05rem;
  font-weight:600;
  border:none;
  border-radius:12px;
  cursor:pointer;
  transition:transform .15s, box-shadow .2s;
}

.btn-main,
.btn-voucher{
  background:linear-gradient(135deg,var(--primary) 0%,#e0ae00 100%);
  color:#000;
}

.btn-pago{
  background:linear-gradient(135deg,var(--secondary) 0%,#001f4d 100%);
  color:#fff;
}

.btn:hover{
  transform:translateY(-2px);
  box-shadow:0 6px 14px rgba(0,0,0,.14);
}

.btn[disabled]{
  opacity:.55;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}

/* ---------- Estadísticas ---------- */
.stats{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1rem;
  margin:1.9rem 0;
}

.stat-box{
  background:rgba(255,255,255,.55);
  border:1px solid rgba(0,0,0,.05);
  border-radius:14px;
  padding:1.15rem;
  text-align:center;
  backdrop-filter:blur(6px);
}

.stat-title{
  font-size:.78rem;
  color:var(--muted);
}

.stat-value{
  font-size:1.55rem;
  font-weight:600;
  margin-top:.25rem;
  white-space:nowrap;
}

/* ---------- Mensaje de estado ---------- */
.msg{
  text-align:center;
  font-size:.96rem;
  min-height:24px;
  margin-bottom:.4rem;
}

/* ---------- Footer ---------- */
.footer{
  margin-top:auto;
  text-align:center;
  font-size:.8rem;
  color:#6e7683;
  padding:.9rem 1rem 1.4rem;
}

/* ---------- Escáner ---------- */
#scanner-wrapper{
  position:fixed;
  inset:0;
  display:none;
  background:rgba(0,0,0,.92);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  z-index:1000;
}

#scanner{
  width:90%;
  max-width:420px;
  border-radius:var(--radius);
}

#scanner-overlay{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,.65);
  -webkit-mask:radial-gradient(transparent 170px,#000 180px);
  mask:radial-gradient(transparent 170px,#000 180px);
}

#scanner-frame{
  position:absolute;
  width:340px;
  height:340px;
  border:4px solid var(--primary);
  border-radius:14px;
  pointer-events:none;
}

#laser{
  position:absolute;
  left:50%;
  top:calc(50% - 170px);
  width:4px;
  height:340px;
  background:var(--primary);
  animation:scan 2.8s linear infinite;
  transform:translateX(-50%);
}

@keyframes scan{
  0%{top:calc(50% - 170px);}
  50%{top:calc(50% + 170px);}
  100%{top:calc(50% - 170px);}
}

#scanner-logo{
  position:absolute;
  top:22px;
  left:50%;
  width:150px;
  transform:translateX(-50%);
}

/* ---------- Cierre escáner ---------- */
#close-scan{
  position:absolute;
  top:24px;
  right:24px;
  background:#fff;
  border:none;
  border-radius:50%;
  width:44px;
  height:44px;
  font-size:1.25rem;
  cursor:pointer;
  box-shadow:0 3px 8px rgba(0,0,0,.18);
}

/* ---------- Modal ---------- */
#modal{
  position:fixed;
  inset:0;
  display:none;
  background:rgba(0,0,0,.7);
  align-items:center;
  justify-content:center;
  z-index:2000;
}

.modal-box{
  background:#fff;
  width:90%;
  max-width:420px;
  border-radius:22px;
  padding:2rem 1.8rem 2.4rem;
  text-align:center;
  box-shadow:var(--shadow);
}

.radio-group{
  display:flex;
  justify-content:center;
  gap:2.2rem;
  margin-bottom:1.2rem;
}

/* ---------- Helpers ---------- */
.oculto{display:none;}

.input-box[readonly]{
  background:#f1f3f4;
  color:#555;
  cursor:not-allowed;
}

/* ---------- Responsive ---------- */
@media(max-width:480px){
  .hero-title{font-size:1.35rem;}
  .card{padding:1.9rem 1.4rem 2.1rem;}
}