:root{font-family:Helvetica Now Display,Helvetica Neue,Helvetica,Arial,sans-serif;color:#000;background:#f4f4f4;line-height:1.5;--surface: #ffffff;--surface-muted: #f2f2f2;--border: #e5e5e5;--border-strong: #dadada;--muted: #4d4d4d;--subtle: #7e7e7e;--accent: #95bf1f;--accent-soft: rgba(149, 191, 31, .1);--sidebar: #ffffff;--radius-sm: 15px;--radius-md: 25px;--radius-lg: 30px;--shadow: 0 20px 33px rgba(0, 0, 0, .05)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:#f4f4f4}.fade-in{animation:fadeInUp .35s ease-out}.stack{display:flex;flex-direction:column;gap:20px}.layout{display:grid;grid-template-columns:280px 1fr;min-height:100vh;transition:grid-template-columns .2s ease}.layout--sidebar-collapsed{grid-template-columns:80px 1fr}.main-surface{padding:20px;min-width:0}.page-header{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:20px;padding:20px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md)}.page-header-heading{display:flex;align-items:flex-start;gap:12px;min-width:0}.page-header-menu{display:none;width:40px;height:40px;margin:0;padding:0;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fafafa;color:var(--muted);align-items:center;justify-content:center;flex-shrink:0;box-shadow:none;transform:none}.page-header-menu:hover:not(:disabled){background:var(--surface-muted);transform:none;box-shadow:none}.page-header-menu-bars,.page-header-menu-bars:before,.page-header-menu-bars:after{display:block;width:16px;height:2px;background:currentColor;border-radius:2px;position:relative}.page-header-menu-bars:before,.page-header-menu-bars:after{content:"";position:absolute;left:0}.page-header-menu-bars:before{top:-5px}.page-header-menu-bars:after{top:5px}.page-header h1{margin:4px 0 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