* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background-color: #f5f5f5;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  background: #ffffff;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  max-width: 560px;
  width: 100%;
}

/* Header verde */
.header {
  background-color: #006847;
  padding: 32px 40px 24px;
  text-align: center;
}

.logo {
  font-size: 28px;
  font-weight: 900;
  letter-spacing: 1px;
  color: #ffffff;
}

.tagline {
  color: rgba(255,255,255,0.80);
  font-size: 13px;
  margin-top: 6px;
}

/* Barra bandera mexicana */
.flag-bar {
  display: flex;
  height: 5px;
}

.flag-green {
  flex: 1;
  background-color: #006847;
}

.flag-white {
  flex: 1;
  background-color: #ffffff;
  border-top: 1px solid #e0e0e0;
  border-bottom: 1px solid #e0e0e0;
}

.flag-red {
  flex: 1;
  background-color: #CE1126;
}

/* Contenido */
.content {
  padding: 40px;
}

.state {
  text-align: center;
}

.state.hidden {
  display: none;
}

h1 {
  font-size: 22px;
  color: #1a1a1a;
  margin-bottom: 12px;
}

.state p {
  font-size: 15px;
  color: #444444;
  line-height: 1.6;
  margin-bottom: 24px;
}

/* Iconos circulares */
.icon-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: bold;
  color: #ffffff;
  margin-bottom: 20px;
}

.icon-circle.success {
  background-color: #006847;
}

.icon-circle.error {
  background-color: #CE1126;
}

/* Botón */
.btn-primary {
  display: inline-block;
  background-color: #006847;
  color: #ffffff;
  text-decoration: none;
  font-size: 16px;
  font-weight: bold;
  padding: 16px 40px;
  border-radius: 12px;
  letter-spacing: 0.5px;
  border: none;
  cursor: pointer;
  margin-top: 8px;
}

.btn-primary:hover {
  background-color: #005538;
}

.hint {
  font-size: 12px;
  color: #888;
  margin-top: 16px !important;
}

/* Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid #e0e0e0;
  border-top-color: #006847;
  border-radius: 50%;
  margin: 0 auto 20px;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Inputs */
input[type="password"] {
  width: 100%;
  padding: 14px 16px;
  font-size: 15px;
  border: 2px solid #e0e0e0;
  border-radius: 12px;
  margin-bottom: 12px;
  outline: none;
  transition: border-color 0.2s;
}

input[type="password"]:focus {
  border-color: #006847;
}

/* Error inline */
.error {
  background-color: #fff5f5;
  border-left: 4px solid #CE1126;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
  color: #CE1126;
  font-size: 14px;
  text-align: left;
}

.error.hidden {
  display: none;
}

/* Footer */
.footer {
  background-color: #f9f9f9;
  border-top: 1px solid #eeeeee;
  padding: 20px 40px;
  text-align: center;
}

.footer p {
  font-size: 12px;
  color: #aaaaaa;
  margin-bottom: 6px;
}

.footer a {
  color: #006847;
  text-decoration: none;
}

/* Responsive */
@media (max-width: 480px) {
  .header {
    padding: 24px 20px 18px;
  }
  
  .content {
    padding: 28px 20px;
  }
  
  .footer {
    padding: 16px 20px;
  }
  
  .btn-primary {
    padding: 14px 28px;
    font-size: 15px;
  }
}