* {
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

body {
    background: linear-gradient(135deg, #667eea, #764ba2);
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
}

.login-container {
    background: white;
    padding: 2rem;
    width: 320px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.login-container h2 {
    text-align: center;
    margin-bottom: 1.5rem;
}

.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-weight: bold;
}

.input-group input {
    width: 100%;
    padding: 0.6rem;
    border-radius: 5px;
    border: 1px solid #ccc;
}

button {
    width: 100%;
    padding: 0.7rem;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1rem;
    cursor: pointer;
}

button:hover {
    background: #5a67d8;
}

.flash {
    background: #ffe0e0;
    border: 1px solid #ffaaaa;
    padding: 0.5rem;
    margin-bottom: 1rem;
    border-radius: 5px;
    color: #900;
    text-align: center;
}