:root{--navy: #1f3a5f;--navy-2: #2f6db0;--orange: #e0913a;--ink: #1c2630;--muted: #6b7785;--line: #e3e8ee;--bg: #f4f6f9;--card: #ffffff;--good: #2e7d52;--danger: #c0392b;--radius: 14px;--shadow: 0 1px 3px rgba(20, 40, 70, .08), 0 6px 18px rgba(20, 40, 70, .06)}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--ink);font-family:Sarabun,Noto Sans Thai,Segoe UI,system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.5;-webkit-text-size-adjust:100%}button{font-family:inherit;cursor:pointer}input,textarea,button{font-size:16px}.app-shell{min-height:100%;display:flex;flex-direction:column}.app-header{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 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