:root{--bg: #f7f6f3;--panel: #ffffff;--border: #e3e1da;--text: #24221e;--muted: #6e6a61;--accent: #30587f;--accent-strong: #274a6b;--accent-text: #ffffff;--error: #a23b38;--error-bg: #fbf1f0;--code-bg: #f2f0ec;--shadow: 0 1px 2px rgb(36 34 30 / 6%);color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--bg: #17191d;--panel: #1e2126;--border: #2d3138;--text: #e7e5e0;--muted: #9b988f;--accent: #86aed4;--accent-strong: #a3c3e2;--accent-text: #10151b;--error: #d98a86;--error-bg: #2a1f1e;--code-bg: #23262c;--shadow: none}}*{box-sizing:border-box}html,body{height:100%}body{margin:0;display:flex;flex-direction:column;background:var(--bg);color:var(--text);font:15px/1.5 -apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.topbar{display:flex;align-items:center;gap:1rem;padding:.65rem 1rem;border-bottom:1px solid var(--border);background:var(--panel)}.brand{display:flex;align-items:baseline;gap:.75rem;min-width:0}.wordmark{margin:0;font-family:Georgia,Times New 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0;cursor:pointer}.viewtab[aria-pressed=true]{color:var(--text);border-bottom-color:var(--accent);font-weight:600}@media(max-width:800px){.tagline{display:none}.viewtabs{display:flex}.split{grid-template-columns:minmax(0,1fr)}.pane-editor{border-right:0}body[data-view=editor] .pane-preview,body[data-view=preview] .pane-editor{display:none}.btn,.viewtab{min-height:44px}.btn-primary kbd{display:none}}.foot{border-top:1px solid var(--border);background:var(--panel);padding:.5rem 1rem}.foot p{margin:0;font-size:.78rem;color:var(--muted)}.foot a{color:inherit}