:root{--navy: #1B2F5E;--gold: #C9963A;--light-blue: #E8EDF7;--success: #2e7d32;--danger: #c62828;--warn: #e65100;--bg: #f4f6fb;--surface: #ffffff;--border: #d0d7e8;--text: #1a1a2e;--text-muted: #5a6580;--topbar-h: 56px;--subbar-h: 36px;--bottom-h: 48px;--radius: 6px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);--shadow-lg: 0 10px 25px rgba(0,0,0,.18)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;font-size:14px;line-height:1.5;color:var(--text);background:var(--bg)}.app-shell{display:flex;flex-direction:column;height:100vh}.topbar{position:sticky;top:0;z-index:100;height:var(--topbar-h);background:var(--navy);border-bottom:3px solid var(--gold);display:flex;align-items:center;padding:0 16px;gap:12px;flex-shrink:0}.topbar-brand{display:flex;align-items:center;gap:8px;flex-shrink:0}.topbar-brand 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