:root{--font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--bg-app: #F8FAFC;--bg-card: #FFFFFF;--bg-dark: #0F172A;--bg-topbar: #1E293B;--border: #E2E8F0;--border-focus: #3B82F6;--text-main: #0F172A;--text-muted: #64748B;--primary: #2563EB;--primary-hover: #1D4ED8;--accent: #0EA5E9;--success: #16A34A;--warning: #D97706;--danger: #DC2626;--radius: 8px}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;font-family:var(--font-family);color:var(--text-main);background:var(--bg-app);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{cursor:pointer;transition:color .15s ease,background-color .15s ease,border-color .15s ease,opacity .15s ease,transform .12s ease}button:active{transform:scale(.97)}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid rgba(59,130,246,.28);outline-offset:2px}.topbar{height:68px;padding:0 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