html,
body {
  height: 100%;
}

body {
  display: flex;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 40px;
  background-color: #f5f7fa;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: #333;
}

.login-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(135deg, #e0eafc 0%, #cfdef3 100%);
    opacity: 0.6;
}

.form-signin {
  width: 100%;
  max-width: 420px;
  padding: 15px;
  margin: auto;
}

.card {
    border: none;
    box-shadow: 0 10px 25px rgba(0,0,0,0.05);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
}

.form-floating .form-control {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    background-color: #f8f9fa;
}

.form-floating .form-control:focus {
    background-color: #fff;
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.15);
}

.btn-login {
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 12px;
    border-radius: 8px;
    background-image: linear-gradient(to right, #0d6efd, #0b5ed7);
    border: none;
    transition: all 0.2s ease-in-out;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(13, 110, 253, 0.3);
}

.text-muted {
    font-weight: 300;
}