* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: var(--fs-lg)/1.6 var(--font-ui); }
header { display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: center; padding: 20px 5%; border-bottom: 1px solid var(--border); }
a { color: var(--text); min-height: 44px; display: inline-flex; align-items: center; text-underline-offset: 4px; }
header span, .eyebrow, .role { font-size: var(--fs-xs); font-weight: 600; letter-spacing: var(--track-label); }
main { max-width: 960px; margin: auto; padding: 48px 24px; }
h1, h2 { font-family: var(--font-display); font-weight: 600; line-height: 1.2; }
h1 { font-size: var(--fs-5xl); letter-spacing: var(--track-tight); margin: 12px 0 24px; }
h2 { font-size: var(--fs-2xl); }
.intro { max-width: 720px; }
#progress { display: flex; flex-wrap: wrap; list-style: none; padding: 0; gap: 8px; margin: 32px 0; }
#progress li { flex: 1 1 130px; border-top: 3px solid var(--border); padding: 10px 0; font-size: var(--fs-sm); }
#progress li[aria-current="step"] { border-color: var(--text); font-weight: 600; }
#progress li[data-done="true"] { border-color: var(--live); }
.workspace { padding: 28px; border: 1px solid var(--border); border-radius: var(--radius-lg); background: var(--surface); }
.sample { padding: 16px 0; margin: 24px 0; border-block: 1px solid var(--border); }
.sample span, .sample strong { display: block; }
.sample span { font-size: var(--fs-sm); }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
button { min-height: 48px; padding: 12px 20px; border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); background: var(--surface); font: inherit; cursor: pointer; }
.actions button:first-child { background: var(--text); color: var(--bg); }
button:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--text); outline-offset: 4px; }
#feedback, #storage-note { font-weight: 600; }
aside { margin-block: 28px; }
aside h2 { font-size: var(--fs-xl); }
.footer { padding-top: 20px; border-top: 1px solid var(--border); }
.footer p { font-size: var(--fs-sm); }
dl { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
dd { margin: 0; }
@media (max-width: 640px) { main { padding: 28px 16px; } .workspace { padding: 20px; } .actions button { width: 100%; } dl { grid-template-columns: 1fr; } }