.walkthrough-main { padding: 48px 0 64px; }
.walkthrough-main h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
.walkthrough-main h2 { font-size: 1.6rem; }
.walkthrough-note { color: var(--muted); max-width: 800px; font-size: .95rem; }
.walkthrough-note a { color: var(--accent); text-decoration: underline; }
.walkthrough-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 32px; align-items: start; }
.question-panel, .source-panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; min-width: 0; }
.example-questions { display: grid; gap: 10px; margin: 20px 0 28px; }
.example-questions button { text-align: left; padding: 12px 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--ink); cursor: pointer; }
.example-questions button[aria-pressed="true"] { border-color: var(--accent); background: var(--soft); color: var(--accent-dark); font-weight: 700; }
.example-questions button:focus-visible, .source-panel summary:focus-visible, .source-link:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
.example-answer { background: var(--navy); color: white; padding: 22px; border-radius: 12px; }
.example-answer p { color: #dbe7fb; }
.example-answer .source-link { display: inline-block; color: #a9c5ff; text-decoration: underline; margin-right: 12px; }
.source-panel > p { color: var(--muted); }
.source-panel details { border-top: 1px solid var(--line); padding: 14px 0; scroll-margin-top: 90px; }
.source-panel summary { cursor: pointer; font-weight: 700; }
.source-panel details p { color: var(--muted); font-size: .95rem; }
.source-panel details a { color: var(--accent); text-decoration: underline; font-size: .9rem; }
.walkthrough-next { margin-top: 40px; padding: 30px; background: var(--soft); border-radius: var(--radius); }
.walkthrough-next p { color: var(--muted); max-width: 740px; }
@media(max-width: 760px) { .walkthrough-grid { grid-template-columns: 1fr; } .question-panel, .source-panel, .walkthrough-next { padding: 22px; } .walkthrough-main { padding-top: 30px; } }