:root{--bg: #f3f5f9;--card: #ffffff;--border: #e3e7ee;--text: #1a2233;--muted: #6b7280;--accent: #2563eb;--accent-soft: #e8f0fe;--green: #16a34a;--green-soft: #e6f6ec;--red: #dc2626;--red-soft: #fdeaea;--orange: #d97706;--orange-soft: #fdf1e0;--purple: #7c3aed;--sidebar-bg: #141b2d;--sidebar-text: #c6cddd;--sidebar-active: #2563eb;--radius: 10px;--shadow: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:-apple-system,Segoe UI,Prompt,Sarabun,sans-serif;background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}.app{display:flex;min-height:100vh}.sidebar{width:240px;min-width:240px;background:var(--sidebar-bg);color:var(--sidebar-text);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;overflow-y:auto}.sidebar-brand{padding:20px 20px 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