:root{--bg: #f6f3ee;--panel: #ffffff;--ink: #1c1917;--muted: #6b6560;--line: #e2ddd5;--accent: #0f766e;--accent-ink: #ffffff;--accent-soft: #d8efec;--warn: #b45309;--danger: #b91c1c;--ok: #15803d;--mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--sans: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;--serif: Georgia, "Times New Roman", serif;--radius: 14px;color-scheme:light}@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg: #141311;--panel: #1e1c19;--ink: #f1ede6;--muted: #a39c92;--line: #332f2a;--accent: #2dd4bf;--accent-ink: #062a27;--accent-soft: #15302d;--warn: #f59e0b;--danger: #f87171;--ok: #4ade80;color-scheme:dark}}:root[data-theme=dark]{--bg: #141311;--panel: #1e1c19;--ink: #f1ede6;--muted: #a39c92;--line: #332f2a;--accent: #2dd4bf;--accent-ink: #062a27;--accent-soft: #15302d;--warn: #f59e0b;--danger: #f87171;--ok: #4ade80;color-scheme:dark}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans)}body{min-height:100vh;-webkit-text-size-adjust:100%}a{color:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.seo-static{max-width:760px;margin:0 auto;padding:24px 16px;line-height:1.55}.seo-static h1{font-family:var(--serif);font-weight:600}.visually-hidden{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.btn{border:1px solid var(--line);background:var(--panel);color:var(--ink);border-radius:10px;padding:8px 12px;font:inherit;cursor:pointer;display:inline-flex;align-items:center;gap:6px;text-decoration:none}.btn:hover:not(:disabled){border-color:var(--accent)}.btn:disabled{opacity:.5;cursor:default}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}.btn.small{padding:4px 8px;font-size:.85rem}.btn.icon{padding:8px 10px;font-size:1.1rem;line-height:1}.btn.ghost{border-color:transparent;background:transparent}.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--panel);flex-wrap:wrap}.seg button{border:0;background:transparent;color:var(--ink);padding:8px 12px;font:inherit;cursor:pointer}.seg button[aria-checked=true],.seg button[aria-selected=true]{background:var(--accent);color:var(--accent-ink);font-weight:600}.seg button+button{border-left:1px solid var(--line)}label.chk{display:inline-flex;align-items:center;gap:6px;color:var(--muted);font-size:.9rem;cursor:pointer}label.chk input{accent-color:var(--accent)}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}.muted{color:var(--muted)}.note{padding:12px 14px;border:1px dashed var(--line);border-radius:12px;color:var(--muted);font-size:.9rem}.note code,code{font-family:var(--mono)}progress{accent-color:var(--accent)}