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

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #23243a 0%, #3a3d5c 100%);
  color: #f0f0f5;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.container {
  background: rgba(0, 0, 0, 0.2);
  width: 100%;
  max-width: 450px;
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px);
  transition: transform 0.3s ease;
}

.container:hover {
  transform: translateY(-4px);
}

.form-title {
  font-size: 1.6rem;
  font-weight: bold;
  text-align: center;
  margin-bottom: 1.2rem;
  color: #e2e2ff;
}

.input-group {
  position: relative;
  margin: 1.2rem 0;
}

input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
  padding: 0.5rem 1rem;
  font-size: 1rem;
  color: #eef;
}

input::placeholder {
  color: transparent;
}

input:focus {
  border-bottom: 2px solid #a0c4ff;
  outline: none;
}

label {
  position: absolute;
  left: 1rem;
  top: 0.5rem;
  color: rgba(255, 255, 255, 0.7);
  pointer-events: none;
  transition: 0.3s ease all;
}

input:focus ~ label,
input:not(:placeholder-shown) ~ label {
  top: -0.75rem;
  font-size: 0.85rem;
  color: #a0c4ff;
}

button {
  width: 100%;
  padding: 0.75rem;
  margin-top: 1rem;
  background-color: #5a6aff;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: background 0.3s;
}

button:hover {
  background-color: #3f4fc4;
}

.recover a,
.links button {
  color: #a0c4ff;
}

.recover a:hover,
.links button:hover {
  color: #eef;
}

.links {
  display: flex;
  justify-content: space-between;
  margin-top: 1rem;
  font-weight: bold;
}

.messageDiv {
  background-color: #a0c4ff;
  color: #23243a;
  padding: 0.8rem 1rem;
  margin: 1rem 0;
  border-radius: 5px;
  font-size: 1rem;
  animation: fadeOut 6s forwards;
}

@keyframes fadeOut {
  0%, 80% { opacity: 1; }
  100% { opacity: 0; }
}

/* ---------- Media Queries for Responsiveness ---------- */

/* Small phones: up to 480px */
@media only screen and (max-width: 480px) {
  .container {
    padding: 1rem;
    max-width: 100%;
  }
  .form-title {
    font-size: 1.4rem;
  }
  button {
    font-size: 1rem;
    padding: 0.6rem;
  }
}

/* Medium phones/tablets: up to 768px */
@media only screen and (max-width: 768px) {
  body {
    padding: 10px;
  }
  .container {
    max-width: 90%;
  }
  .form-title {
    font-size: 1.5rem;
  }
}