* {
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    margin: 0;
    padding: 0;
    background: #f3f4f6;
}

.container {
    max-width: 600px;
    margin: 1.5rem auto;
    padding: 1rem 1.25rem 1.5rem;
    background: #ffffff;
    border-radius: 0.9rem;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
}

h1 {
    font-size: 1.4rem;
    margin-top: 0;
    margin-bottom: 0.75rem;
}

label {
    display: block;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 0.45rem 0.6rem;
    margin-top: 0.15rem;
    border-radius: 0.5rem;
    border: 1px solid #d1d5db;
    font-size: 0.95rem;
}

button,
.button {
    display: inline-block;
    margin-top: 0.5rem;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    border: none;
    background: #2563eb;
    color: #ffffff;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}

button:hover,
.button:hover {
    background: #1d4ed8;
}

.error {
    margin-bottom: 0.75rem;
    padding: 0.5rem 0.7rem;
    border-radius: 0.6rem;
    background: #fee2e2;
    color: #b91c1c;
    font-size: 0.9rem;
}

.info {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: #4b5563;
}

.small {
    font-size: 0.8rem;
    color: #6b7280;
}