:root{--navy:#061a35;--navy2:#0a2a54;--blue:#1684ff;--cyan:#35c9ff;--gold:#f5bd39;--green:#22c77a;--red:#ff5b6e;--ink:#12233b;--muted:#66758a;--bg:#eef5fb;--line:#dbe7f1;--white:#fff;--shadow:0 10px 28px rgba(14,46,80,.09)}*{box-sizing:border-box}body{margin:0;font-family:Arial,sans-serif;color:var(--ink);background:var(--bg)}button,input{font:inherit}a{color:var(--blue)}.app-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}aside{background:linear-gradient(180deg,var(--navy),var(--navy2));color:#fff;padding:24px 16px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}.logo{display:grid;grid-template-columns:42px 1fr;align-items:center;margin:0 7px 30px}.logo>span,.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,var(--gold),#fff0a0);color:var(--navy);font-weight:bold}.logo b{font-size:18px}.logo 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