html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    background: #252529;
    color: #dddddd;
    font-family: 'Inter', system-ui, sans-serif;
}

#out {
    width: 100vw;
    height: 100vh;
}

.splash {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #888;
    font-size: 14px;
}

.landing-form {
    width: min(420px, calc(100vw - 32px));
    margin: 64px auto;
    padding: 24px 32px;
    background: #2e2e34;
    border: 1px solid #3a3a40;
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    box-sizing: border-box;
}

.landing-form h1 {
    margin: 0 0 4px;
    font-size: 20px;
    font-weight: 600;
    color: #f0f0f0;
}

.landing-form .subtitle {
    margin: 0 0 20px;
    color: #999;
    font-size: 13px;
}

.landing-form label {
    display: block;
    margin: 14px 0;
    font-size: 13px;
    color: #aaa;
}

.landing-form input {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 8px 10px;
    background: #1d1d22;
    border: 1px solid #3a3a40;
    border-radius: 4px;
    color: #ddd;
    font-family: Consolas, Menlo, monospace;
    font-size: 14px;
    box-sizing: border-box;
}

.landing-form input:focus {
    outline: none;
    border-color: #5a8fbb;
    background: #25252b;
}

.landing-form input:invalid:not(:placeholder-shown):not(:focus) {
    border-color: #c45c5c;
}

.landing-form details {
    margin: 16px 0 8px;
    padding-top: 12px;
    border-top: 1px solid #3a3a40;
}

.landing-form summary {
    cursor: pointer;
    color: #888;
    font-size: 13px;
    padding: 4px 0;
    user-select: none;
}

.landing-form summary:hover {
    color: #ccc;
}

.landing-form button {
    display: block;
    width: 100%;
    margin-top: 20px;
    padding: 10px 16px;
    background: #4a7ba8;
    border: none;
    border-radius: 4px;
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
}

.landing-form button:hover {
    background: #5a8fbb;
}

.landing-form button:active {
    background: #3e6890;
}

.landing-form .note {
    margin: 16px 0 0;
    font-size: 11px;
    color: #777;
    text-align: center;
}