/* Public sign-in help. Light theme, plain layout. */
:root { color-scheme: light; --bg: #f6f4f2; --panel: #fff; --text: #1a1516; --muted: #5c5457; --border: #d9d0d3; --accent: #c4002f; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 1rem/1.6 "Segoe UI", system-ui, sans-serif; }
.help { width: min(100% - 2rem, 46rem); margin: 2rem auto 3rem; padding: 1.75rem; background: var(--panel); border: 1px solid var(--border); border-top: 3px solid var(--accent); }
.help-kicker { margin: 0; color: var(--accent); font: 700 0.75rem/1.2 ui-monospace, monospace; letter-spacing: 0.08em; text-transform: uppercase; }
h1 { margin: 0.5rem 0 0.75rem; font-size: clamp(1.5rem, 4vw, 1.9rem); line-height: 1.2; letter-spacing: -0.02em; }
h2 { margin: 2rem 0 0.5rem; font-size: 1.2rem; }
.help-lead { color: var(--muted); }
.help-toc { border: 1px solid var(--border); padding: 0.5rem 1rem; }
.help-toc ol { margin: 0; padding-left: 1.2rem; }
a { color: var(--accent); }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
li { margin: 0.2rem 0; }
figure { margin: 1rem 0; }
figure img { display: block; max-width: 100%; height: auto; border: 1px solid var(--border); background: #fff; }
figcaption { margin-top: 0.35rem; color: var(--muted); font-size: 0.85rem; }
.help-back { margin-top: 2rem; }

.help-key { margin: 0.5rem 0 0; padding-left: 1.6rem; font-size: 0.95rem; }
.help-key li { margin: 0.2rem 0; }
.help-key li::marker { color: #dc1428; font-weight: 700; }