body,
html {
  height: 100%;
  margin: 0;
  font-family: "Sarabun", sans-serif;
}

.panel {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: white;
  overflow: auto;
  background:
    linear-gradient(45deg, #000000, #690202cc, #6902022a, #ff9b9b00),
    url("https://images.unsplash.com/photo-1549719386-74dfcbf7dbed?q=80&w=1000&auto=format&fit=crop")
    no-repeat center center;
  background-size: cover;
}

.content{
  position: relative;
  display: flex;
  align-items: center;
  flex-direction: column;
}

.login-box {
  background-color: #fffffff2;
  padding: 40px;
  border-radius: 15px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 15px 35px #00000033;
}

.login-title {
  color: #b60a2a;
  font-weight: 600;
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 30px;
}

.form-label {
  color: #333;
  font-weight: 500;
  margin-bottom: 8px;
}

.form-control {
  border-radius: 10px;
  height: 50px;
  padding-left: 20px;
}

.btn-red {
  background: linear-gradient(to left, #d50000, #960b25);
  color: white;
  border-radius: 10px;
  font-weight: 500;
  padding: 12px;
  height: 50px;
  font-size: 1.1rem;
}

.btn-red:hover {
  background: linear-gradient(to right, #d50000, #960b25);
}

.small-link {
  font-size: 0.9rem;
  text-align: center;
  margin-top: 20px;
  color: #666;
}

.small-link a {
  color: #b60a2a;
  text-decoration: none;
  font-weight: 500;
}

.small-link a:hover {
  color: #ff4b2b;
  text-decoration: none;
}

@media (max-width: 768px) {
  .content {
    padding: 40px 20px;
  }

  .login-box {
    padding: 30px;
  }

  .panel {
    display: block;
  }
}