/* DNA course — shared minimal styles for the landing page and lectures index. */ :root { --fg: #1a1a1a; --fg-muted: #555; --fg-faint: #888; --bg: #fafafa; --accent: #b22222; --rule: #e3e3e3; --max-width: 760px; --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic UI", Meiryo, sans-serif; --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace; } * { box-sizing: border-box; } html, body { margin: 0; padding: 0; background: var(--bg); color: var(--fg); font-family: var(--font-body); font-size: 17px; line-height: 1.6; } body { max-width: var(--max-width); margin: 0 auto; padding: 3rem 1.25rem 4rem; } header.course-header { border-bottom: 1px solid var(--rule); padding-bottom: 1.5rem; margin-bottom: 2rem; } header.course-header h1 { margin: 0; font-size: 2rem; letter-spacing: -0.01em; } header.course-header .subtitle-ja { display: block; margin-top: 0.4rem; font-size: 1rem; color: var(--fg-muted); font-weight: 400; } header.course-header .meta { margin-top: 1.2rem; font-size: 0.92rem; color: var(--fg-muted); } header.course-header .meta span + span::before { content: " · "; color: var(--fg-faint); } main section { margin-bottom: 2.5rem; } h2 { font-size: 1.15rem; letter-spacing: 0.02em; text-transform: uppercase; color: var(--fg-muted); margin: 2rem 0 0.75rem; } p { margin: 0 0 1rem; } a { color: var(--accent); text-decoration: none; border-bottom: 1px solid transparent; } a:hover { border-bottom-color: var(--accent); } ul.lectures { list-style: none; padding: 0; margin: 0; } ul.lectures li { border-top: 1px solid var(--rule); padding: 1rem 0; } ul.lectures li:last-child { border-bottom: 1px solid var(--rule); } ul.lectures .lecture-title { font-weight: 600; font-size: 1.05rem; } ul.lectures .lecture-meta { display: block; margin-top: 0.2rem; font-size: 0.88rem; color: var(--fg-muted); } ul.lectures .lecture-status-stub { color: var(--fg-faint); font-style: italic; } footer { margin-top: 4rem; padding-top: 1.5rem; border-top: 1px solid var(--rule); font-size: 0.85rem; color: var(--fg-faint); } code, pre { font-family: var(--font-mono); font-size: 0.95em; } /* Compass-driven content states */ .compass-placeholder { color: var(--fg-faint); font-style: italic; } html.compass-loaded .compass-placeholder { color: inherit; font-style: inherit; } .compass-error { margin-top: 1rem; padding: 0.75rem 1rem; background: #fff7f7; border: 1px solid #f0d4d4; border-radius: 6px; font-size: 0.9rem; color: var(--accent); } .compass-error small { display: block; margin-top: 0.3rem; color: var(--fg-faint); font-size: 0.8rem; } /* Roster (instructors & contributors) */ h3.people-role { margin: 1.2rem 0 0.25rem; font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--fg-muted); font-weight: 600; } p.people-list { margin: 0 0 0.5rem; line-height: 1.7; } /* Bilingual content — show one language at a time, toggled at the level */ html[lang="en"] [lang="ja"]:not(.lang-always), html[lang="ja"] [lang="en"]:not(.lang-always) { display: none; } button.lang-toggle { position: fixed; top: 1rem; right: 1rem; z-index: 10; padding: 0.35rem 0.7rem; background: #fff; border: 1px solid var(--rule); border-radius: 999px; font: inherit; font-size: 0.8rem; letter-spacing: 0.02em; color: var(--fg-muted); cursor: pointer; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04); } button.lang-toggle:hover { color: var(--fg); border-color: var(--fg-muted); } button.lang-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; } button.lang-toggle kbd { margin-left: 0.4rem; padding: 0 0.3rem; border: 1px solid var(--rule); border-radius: 3px; font-family: var(--font-mono); font-size: 0.7rem; color: var(--fg-faint); } @media (max-width: 520px) { body { padding: 2rem 1rem 3rem; font-size: 16px; } header.course-header h1 { font-size: 1.6rem; } }