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auto 1fr var(--footer-height);grid-template-columns:var(--sidebar-w) 1fr}.app-header{grid-area:header}.side-toggle{display:inline-flex}.pending-banner{grid-area:banner;position:static;top:0}.side-nav{display:flex;flex-direction:column;gap:2px;grid-area:sidebar;width:var(--sidebar-w);background:var(--gray-50);border-right:1px solid var(--gray-200);padding:8px 0;overflow-y:auto;transition:width var(--transition)}.side-nav .nav-item{display:flex;align-items:center;gap:12px;padding:10px 18px;background:none;border:none;color:var(--gray-500);font-size:13px;cursor:pointer;white-space:nowrap;transition:background var(--transition),color var(--transition)}.side-nav .nav-item:hover{background:var(--gray-100)}.side-nav .nav-item i{font-size:18px;width:20px;text-align:center;filter:grayscale(.55);transition:filter var(--transition),transform var(--transition)}.side-nav .nav-item.active{color:var(--gray-800);font-weight:600;background:var(--gray-100)}.side-nav .nav-item.active i{filter:grayscale(0);transform:scale(1.12)}.app-shell.side-collapsed .nav-label{display:none}.app-shell.side-collapsed .side-nav .nav-item{justify-content:center;padding:12px 0}.app-main{grid-area:main;padding:16px;overflow-y:auto}.app-footer{display:flex;align-items:center;gap:8px;grid-area:footer;padding:0 16px;border-top:1px solid var(--gray-200);background:var(--gray-50);font-size:12px;color:var(--gray-500)}.bottom-nav{display:none}.fab{bottom:calc(var(--footer-height) + 16px)}.modal{max-width:640px;border-radius:var(--radius)}}