* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: #0f0f0f;
    color: #e0e0e0;
    line-height: 1.5;
}

.nav {
    background: #1a1a2e;
    border-bottom: 1px solid #333;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
}
.nav .brand { font-weight: 700; font-size: 1.1rem; color: #fff; margin-right: auto; }
.link { background: none; border: none; color: #aaa; font-size: 0.9rem; cursor: pointer; }
.link:hover { color: #fff; }

.container { max-width: 560px; margin: 0 auto; padding: 1.5rem 1rem; }
h1 { font-size: 1.3rem; color: #fff; margin-bottom: 1rem; }

.choices { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.75rem; }
.choice {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    text-align: left;
    padding: 1.25rem 1rem;
    background: #1a1a2e;
    border: 2px solid #333;
    border-radius: 10px;
    color: inherit;
    font: inherit;
    cursor: pointer;
}
.choice .title { font-size: 1.15rem; font-weight: 700; color: #fff; }
.choice .desc { font-size: 0.85rem; color: #888; }
.choice.active { border-color: #2563eb; background: #172554; }
.choice:focus-visible { outline: 2px solid #6cb4ee; outline-offset: 2px; }

.status { margin-top: 1rem; font-size: 0.85rem; color: #888; min-height: 1.5em; }

.alert { padding: 0.75rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.alert-error { background: #3a1a1a; border: 1px solid #dc2626; color: #f87171; }

@media (max-width: 520px) {
    .choices { grid-template-columns: 1fr; }
}

/* ---- login gate (see auth.js) ---- */
.login-gate {
    position: fixed;
    inset: 0;
    background: var(--bg, #111);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}
.login-box {
    width: 100%;
    max-width: 22rem;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.login-box h1 { margin: 0 0 .5rem; font-size: 1.25rem; }
.login-box label { font-size: .8rem; opacity: .75; }
.login-box input {
    padding: .6rem .7rem;
    font-size: 1rem; /* >=16px stops iOS zooming the page on focus */
    border-radius: .4rem;
    border: 1px solid rgba(128,128,128,.4);
    background: rgba(128,128,128,.08);
    color: inherit;
}
.login-box button {
    margin-top: .5rem;
    padding: .65rem;
    font-size: 1rem;
    border-radius: .4rem;
    cursor: pointer;
}
.login-box button[disabled] { opacity: .6; cursor: default; }
.login-error { color: #e5484d; min-height: 1.2em; margin: .25rem 0 0; font-size: .85rem; }