:root{--gold: #d4af37;--black: #1a1a1a;--white: #ffffff;--muted: #6b7280;--bg-light: #f8f9fa;--border: #e5e7eb;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07);--radius: 8px}*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:#1a1a1a;background:var(--bg-light)}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 20px;background:linear-gradient(135deg,var(--black) 0%,#2d2d2d 100%);color:var(--white);border-bottom:3px solid var(--gold);box-shadow:0 4px 12px #00000026;transition:all .3s ease}.topbar-brand{display:flex;align-items:center;gap:12px;flex:1}.topbar img{height:32px;width:auto;filter:drop-shadow(0 2px 4px rgba(0,0,0,.3));transition:transform .3s ease}.topbar img:hover{transform:scale(1.05)}.topbar .title{font-size:18px;font-weight:700;letter-spacing:.3px;text-shadow:0 2px 4px 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