:root{--navy:#102a43;--navy2:#163b5c;--teal:#0e8f83;--mint:#e6f5f2;--bg:#f4f7fa;--text:#243b53;--muted:#6b7c8f;--line:#dce5ed;--white:#fff;--danger:#b42318;--shadow:0 8px 30px rgba(16,42,67,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.5 system-ui,-apple-system,"Segoe UI",sans-serif}a{color:var(--teal);text-decoration:none}button,input,select,textarea{font:inherit}.app-shell{min-height:100vh}.sidebar{position:fixed;inset:0 auto 0 0;width:250px;background:linear-gradient(180deg,var(--navy),#0b2237);color:#fff;padding:22px 16px;display:flex;flex-direction:column;z-index:10}.brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:19px;font-weight:700;padding:0 8px 23px}.brand>span,.login-brand{display:grid;place-items:center;background:var(--teal);width:42px;height:42px;border-radius:12px;font-size:23px}.brand small{display:block;color:#9fb3c8;font-size:11px;font-weight:500}.sidebar nav{display:grid;gap:3px;overflow:auto}.sidebar 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