:root{--bg: #ffffff;--surface: #ffffff;--surface-2: #f3f4f6;--input-bg: #ffffff;--text: #111827;--muted: #6b7280;--border: #e5e7eb;--accent: #166534;--accent-contrast: #ffffff;--danger: #dc2626;--ok: #166534;--warn: #b45309;--radius: 8px;--font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 1px 3px rgba(0, 0, 0, .08);--focus: rgba(22, 101, 52, .3)}@media(prefers-color-scheme:dark){:root{--bg: #0b0d10;--surface: #15181d;--surface-2: #1d2127;--input-bg: #15181d;--text: #e6e8eb;--muted: #9aa1ac;--border: #2a2f37;--accent: #4ade80;--accent-contrast: #052e16;--danger: #f04438;--ok: #4ade80;--warn: #f59e0b;--shadow: 0 1px 2px rgba(0, 0, 0, .4);--focus: rgba(74, 222, 128, .4)}}*{box-sizing:border-box}html,body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.55}.app,.shell{position:relative;z-index:2}.app{max-width:760px;margin:0 auto;padding:0 16px 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