body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f4f5f7;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

.login-box {
    background: #fff;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    width: 100%;
    max-width: 340px;
    text-align: center;
}

h1 {
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    color: #1a1a1a;
}

form {
    display: flex;
    flex-direction: column;
    text-align: left;
}

label {
    font-size: 0.85rem;
    color: #444;
    margin-bottom: 0.3rem;
    margin-top: 0.8rem;
}

input {
    padding: 0.6rem;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 1rem;
}

button {
    margin-top: 1.5rem;
    padding: 0.7rem;
    background: #2563eb;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    cursor: pointer;
}

button:hover {
    background: #1d4ed8;
}

.error {
    background: #fee2e2;
    color: #b91c1c;
    padding: 0.6rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

a {
    display: inline-block;
    margin-top: 1rem;
    color: #2563eb;
    text-decoration: none;
}