:root{--bg: #FBFAF6;--surface: #FFFFFF;--surface-sunk: #F6F4ED;--text: #2C2C2A;--muted: #6B6A63;--faint: #9A988F;--border: #E7E3D8;--border-strong: #D8D3C6;--grid: #EFEBE0;--accent: #0F6E56;--accent-weak: #E1F5EE;--accent-ink: #04342C;--accent-fill: rgba(15, 110, 86, .1);--warn-bg: #FAF3E2;--warn-border: #E8D8AE;--warn-text: #7A5B12;--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;--font-mono: ui-monospace, "SFMono-Regular", "Menlo", monospace;--radius-control: 6px;--radius-card: 8px;--radius-window: 10px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-sans);font-size:13px;line-height:1.5}.app-header{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) 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