body {
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(to right, #0f2027, #203a43, #2c5364);
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 420px;
    text-align: center;
    animation: fadeIn 0.6s ease-out;
}

.logo span {
    font-size: 3rem;
}

.title {
    font-size: 1.8rem;
    color: #203a43;
    margin: 0.3rem 0;
    font-weight: bold;
}



form {
    text-align: left;
}

label {
    display: block;
    font-size: 1rem;
    margin-bottom: 5px;
    color: #333;
}

input {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 1.3rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

input:focus {
    border-color: #007bff;
    outline: none;
}

button {
    width: 100%;
    padding: 12px;
    font-size: 1.1rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

button:hover {
    background-color: #0056b3;
}

.error {
    color: red;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    text-align: center;
    animation: shake 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes shake {
    0% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    50% { transform: translateX(5px); }
    75% { transform: translateX(-5px); }
    100% { transform: translateX(0); }
}