:root {
  --primario: #f2691c;
  --secundario: #0e1f45;
  --acento: #1f9e94;
  --fondo: #f4f1ea;
  --tarjeta: #ffffff;
  --texto: #0e1f45;
  --texto-suave: #5b6478;
  --exito: #1f9e94;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(circle at top, #ffffff, var(--fondo));
  color: var(--texto);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.tarjeta {
  width: 100%;
  max-width: 480px;
  background: var(--tarjeta);
  border-radius: 20px;
  padding: 32px 28px;
  border: 1px solid rgba(14, 31, 69, 0.08);
  box-shadow: 0 20px 60px rgba(14, 31, 69, 0.18);
}

.logo {
  display: block;
  max-width: 140px;
  margin: 0 auto 16px;
  border-radius: 12px;
}

h1 {
  text-align: center;
  font-size: 1.6rem;
  margin: 0 0 8px;
  color: var(--secundario);
}

.subtitulo {
  text-align: center;
  color: var(--texto-suave);
  margin-bottom: 24px;
}

.premios {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}

.premios li {
  background: rgba(31, 158, 148, 0.1);
  border: 1px solid rgba(31, 158, 148, 0.3);
  border-radius: 12px;
  padding: 10px 14px;
  margin-bottom: 8px;
  font-size: 0.95rem;
  color: var(--secundario);
}

.btn {
  display: block;
  width: 100%;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: 12px;
  padding: 14px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-facebook {
  background: #1877f2;
  color: white;
  margin-bottom: 16px;
}

.btn-primario {
  background: var(--primario);
  color: white;
}

.btn-primario:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.check-fila {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
  background: rgba(14, 31, 69, 0.04);
  padding: 12px 14px;
  border-radius: 12px;
}

.check-fila input {
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 1px;
  accent-color: var(--primario);
}

.check-fila label {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.35;
}

.oculto {
  display: none !important;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--texto-suave);
  margin-bottom: 6px;
}

input[type="text"],
input[type="tel"],
input[type="email"] {
  width: 100%;
  padding: 13px 14px;
  border-radius: 10px;
  border: 1px solid rgba(14, 31, 69, 0.18);
  background: rgba(14, 31, 69, 0.03);
  color: var(--texto);
  margin-bottom: 16px;
  font-size: 16px; /* evita zoom automático en iOS */
}

.mensaje-exito {
  text-align: center;
}

.mensaje-exito h1 {
  color: var(--secundario);
}

.mensaje-exito .icono {
  font-size: 3rem;
  margin-bottom: 12px;
}

.mensaje-error {
  color: #dc2626;
  font-size: 0.85rem;
  margin: -8px 0 16px;
  display: none;
}

.pie {
  text-align: center;
  font-size: 0.75rem;
  color: var(--texto-suave);
  margin-top: 20px;
  opacity: 0.85;
}

.ruleta-marco {
  background: var(--secundario);
  border: 2px solid var(--primario);
  border-radius: 14px;
  padding: 28px 16px;
  overflow: hidden;
  margin-bottom: 8px;
  box-shadow: inset 0 0 20px rgba(242, 105, 28, 0.35);
}

.ruleta-texto {
  text-align: center;
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: transform 0.05s linear;
}

.ruleta-texto.girando {
  animation: parpadeo 0.12s infinite;
}

.ruleta-texto.gano {
  color: var(--primario);
  text-shadow: 0 0 12px rgba(242, 105, 28, 0.6);
  animation: rebote 0.4s ease;
}

@keyframes parpadeo {
  0%, 100% { opacity: 1; transform: translateY(0); }
  50% { opacity: 0.6; transform: translateY(-2px); }
}

@keyframes rebote {
  0% { transform: scale(0.85); }
  60% { transform: scale(1.08); }
  100% { transform: scale(1); }
}

.premio-ganado {
  text-align: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primario);
  margin: 8px 0 16px;
}

@media (max-width: 360px) {
  .tarjeta { padding: 22px 16px; border-radius: 16px; }
  h1 { font-size: 1.25rem; }
  .btn { padding: 13px; font-size: 0.95rem; }
}