body {
    font-family: Arial, sans-serif;
    background: #f5f8f3;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    color: #1f2937;
}

.card {
    background: white;
    padding: 30px;
    border-radius: 14px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    width: 320px;
}

h2 {
    margin: 0 0 20px;
    color: #166534;
    text-align: center;
}

input {
    width: 100%;
    padding: 10px;
    margin-bottom: 12px;
    border-radius: 8px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 8px;
    background: #166534;
    color: white;
    font-weight: bold;
    cursor: pointer;
}

button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.error {
    color: #b91c1c;
    font-size: 13px;
    margin-top: 10px;
    text-align: center;
}

.ok {
    color: #166534;
    font-size: 13px;
    margin-top: 10px;
    text-align: center;
}

.link-box {
    margin-top: 14px;
    text-align: center;
    font-size: 14px;
}

.link-box.small {
    margin-top: 10px;
    font-size: 13px;
}

.link-box a {
    color: #166534;
    font-weight: bold;
    text-decoration: none;
}

.link-box.small a {
    color: #6b7280;
    font-weight: normal;
}