:root{--navy:#0b1220;--blue:#3551a4;--blue2:#edf1fb;--bg:#f5f7fb;--text:#101828;--muted:#667085;--line:#e4e7ec;--green:#17845b;--red:#c4324d;--amber:#ad6800}*{box-sizing:border-box}html{font-size:14px}body{margin:0;background:var(--bg);color:var(--text);font-family:'Be Vietnam Pro',Arial,sans-serif}.app-shell{min-height:100vh}#sidebar{position:fixed;inset:0 auto 0 0;width:268px;background:var(--navy);color:#fff;padding:22px 16px;display:flex;flex-direction:column;z-index:20}.brand{display:flex;align-items:center;gap:11px;padding:0 8px 20px}.brand>b,.auth-brand>b{width:40px;height:40px;background:var(--blue);display:grid;place-items:center;border-radius:10px;font-size:20px}.brand span,.auth-brand div{display:flex;flex-direction:column}.brand strong,.auth-brand strong{letter-spacing:2px}.brand small,.auth-brand 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