:root{--color-primary: #E2231A;--color-primary-dark: #B71C13;--color-primary-light: #FFE1DF;--color-text: #1f1f23;--color-text-muted: #5f6368;--color-bg: #f5f5f7;--color-surface: #ffffff;--color-border: #e3e3e6;--color-success: #1f8a3a;--color-warning: #b78103;--color-danger: #c0271e;--color-info: #1c4fa6;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.06);font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5;color:var(--color-text);background-color:var(--color-bg);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html,body,#root{margin:0;padding:0;min-height:100vh;background:var(--color-bg);color:var(--color-text)}a{color:var(--color-primary);text-decoration:none;font-weight:500}a:hover{color:var(--color-primary-dark)}h1,h2,h3,h4{color:var(--color-text);margin-top:0}button{font-family:inherit;font-size:1rem;font-weight:500;cursor:pointer;border:1px solid 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var(--color-primary-light)}label{display:block;font-size:13px;color:var(--color-text-muted);margin-bottom:4px;font-weight:500}.error-banner{background:#fdecea;color:var(--color-danger);border:1px solid #f5c6c2;padding:10px 14px;border-radius:6px;font-size:14px;margin-bottom:12px}.success-banner{background:#e7f6ec;color:var(--color-success);border:1px solid #b9e0c4;padding:10px 14px;border-radius:6px;font-size:14px;margin-bottom:12px}.info-banner{background:#e7f0fa;color:var(--color-info);border:1px solid #b9d2ee;padding:10px 14px;border-radius:6px;font-size:14px;margin-bottom:12px}.app-layout{display:flex;min-height:100vh}.sidebar{width:260px;background:#1a1a1f;color:#fff;display:flex;flex-direction:column;box-shadow:2px 0 8px #00000014}.sidebar-header{padding:18px 18px 14px;border-bottom:1px solid rgba(255,255,255,.08)}.brand{display:flex;align-items:center;gap:10px;background:#fff;padding:8px 10px;border-radius:6px}.brand-logo{height:28px;width:auto;display:block}.brand-sub{margin-top:8px;font-size:11px;color:#ffffff8c;text-transform:uppercase;letter-spacing:.6px}.sidebar-nav{flex:1;padding:12px 0;overflow-y:auto}.nav-item{display:flex;align-items:center;padding:11px 18px;color:#ffffffbf;text-decoration:none;border-left:3px solid transparent;font-size:14px;font-weight:500;transition:background .15s,color .15s}.nav-item:hover{background:#ffffff0d;color:#fff}.nav-item.active{background:#e2231a24;color:#fff;border-left-color:var(--color-primary)}.nav-icon{width:22px;margin-right:10px;text-align:center;font-size:16px}.sidebar-footer{padding:14px 16px;border-top:1px solid rgba(255,255,255,.08)}.user-info{margin-bottom:12px;padding:10px;background:#ffffff0a;border-radius:6px}.user-name{font-size:13px;font-weight:600}.user-role{margin-top:2px;font-size:11px;color:#fff9;text-transform:uppercase;letter-spacing:.6px}.logout-btn{width:100%;padding:9px;background:transparent;border:1px solid rgba(255,255,255,.18);color:#ffffffd9;border-radius:6px;font-size:13px;cursor:pointer}.logout-btn:hover{background:#e2231a2e;border-color:var(--color-primary)}.main-content{flex:1;overflow-y:auto;background:var(--color-bg)}.page-shell{max-width:1200px;margin:0 auto;padding:24px}.page-shell h1{font-size:22px;margin:0 0 18px}.mobile-menu-toggle,.overlay{display:none}@media(max-width:768px){.sidebar{position:fixed;left:-260px;top:0;bottom:0;height:100vh;z-index:1001;transition:transform .25s ease-in-out}.sidebar.open{transform:translate(260px)}.main-content{width:100%}.mobile-menu-toggle{display:block;position:fixed;top:12px;left:12px;z-index:1002;background:#1a1a1f;color:#fff;border:none;padding:8px 12px;border-radius:6px;font-size:18px;cursor:pointer}.overlay{position:fixed;inset:0;background:#00000080;z-index:1000}.overlay.visible{display:block}.page-shell{padding:56px 16px 16px}}.card{background:var(--color-surface);border:1px solid 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label{display:flex;align-items:center;gap:8px;background:#fafafa;padding:10px 12px;border-radius:6px;border:1px solid var(--color-border);cursor:pointer;font-size:14px;color:var(--color-text);margin:0}.attendee-checklist input[type=checkbox]{width:auto;margin:0;transform:scale(1.2)}.attendee-checklist label.done{background:#def7e6;border-color:#b6e3c4}.account-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:20px;margin-bottom:16px;max-width:600px}.account-info{line-height:1.9;font-size:14px}.account-info .lbl{color:var(--color-text-muted);display:inline-block;min-width:80px}#root{width:100%;min-height:100vh;margin:0;padding:0;text-align:left}.auth-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(ellipse at top right,rgba(226,35,26,.08),transparent 50%),radial-gradient(ellipse at bottom left,rgba(226,35,26,.04),transparent 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