/* astral ID fallback pages: deliberately plain, no JavaScript. The real UI is the SPA. */
:root { color-scheme: light dark; --fg: #1d1f24; --muted: #5b6270; --bg: #f6f7f9; --card: #fff; --line: #dfe2e8; --accent: #3a5bd9; --danger: #c0392b; }
@media (prefers-color-scheme: dark) { :root { --fg: #e8eaee; --muted: #9aa1ad; --bg: #14161a; --card: #1c1f25; --line: #2c3038; --accent: #7d97ff; --danger: #ff7b6b; } }
* { box-sizing: border-box; }
body { margin: 0; font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; background: var(--bg); color: var(--fg); }
main { max-width: 420px; margin: 8vh auto; padding: 0 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 28px; }
.brand { font-weight: 600; letter-spacing: .02em; color: var(--muted); margin: 0 0 18px; }
h1 { font-size: 1.35rem; margin: 0 0 8px; }
p { margin: 8px 0; color: var(--muted); }
label { display: block; font-size: .9rem; margin: 14px 0 6px; }
input[type=email], input[type=password], input[type=text] { width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: transparent; color: var(--fg); font: inherit; }
button, .button { display: inline-block; margin-top: 18px; width: 100%; padding: 10px 14px; border: 0; border-radius: 8px; background: var(--accent); color: #fff; font: inherit; font-weight: 600; cursor: pointer; text-align: center; text-decoration: none; }
button.secondary { background: transparent; color: var(--fg); border: 1px solid var(--line); }
.row { display: flex; gap: 10px; } .row > * { flex: 1; }
.error { color: var(--danger); font-size: .95rem; }
.links { margin-top: 16px; font-size: .9rem; } .links a { color: var(--accent); }
ul.codes { columns: 2; font-family: ui-monospace, Menlo, monospace; padding-left: 18px; }
code, .mono { font-family: ui-monospace, Menlo, monospace; word-break: break-all; }
dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; } dt { color: var(--muted); }