:root {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

body {
    margin: 0;
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: #0b1220;
    color: #e8eefc;
}

.card {
    width: min(640px, 92vw);
    padding: 24px;
    border: 1px solid #22304d;
    border-radius: 14px;
    background: #0f1a33;
}

label {
    display: block;
    margin-top: 14px;
    margin-bottom: 6px;
    opacity: 0.9;
}

input {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid #2a3a5f;
    background: #0b1220;
    color: #e8eefc;
}

button {
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid #2a3a5f;
    background: transparent;
    color: #e8eefc;
    cursor: pointer;
}

button:hover {
    border-color: #3a4f7c;
}

.message {
    margin-top: 14px;
    min-height: 1.4em;
    /* estää layoutin “pomppimisen” */
}

.message--error {
    color: #ffb4b4;
}

.message--ok {
    color: #b8ffcb;
}