:root{--navy: #0f172a;--slate: #1e293b;--gray: #475569;--light: #f1f5f9;--blue: #3b82f6;--cyan: #06b6d4;--green: #10b981;--amber: #f59e0b;--red: #ef4444;--purple: #8b5cf6;--border: #e2e8f0;--text: #1e293b;--text-muted: #64748b;--pink: #ec4899;--bottom-nav-h: 52px;--bottom-nav-expanded-h: 88px}.app-shell{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;background:#f8fafc;width:100%;max-width:100%;overflow-x:hidden}.app-shell.nav-expanded{--bottom-nav-h: var(--bottom-nav-expanded-h)}.main-content{flex:1;padding-bottom:calc(var(--bottom-nav-h) + env(safe-area-inset-bottom));padding-top:44px;width:100%;max-width:100%;overflow-x:hidden}.top-status{position:fixed;top:8px;right:12px;z-index:200;display:flex;align-items:center;gap:8px}.user-badge{font-size:12px;color:var(--navy);background:#eef2ff;border:1px solid #c7d2fe;border-radius:999px;padding:4px 10px}.logout-btn{border:1px solid var(--border);background:#fff;color:var(--text-muted);border-radius:8px;padding:4px 8px;font-size:12px;cursor:pointer}.bottom-nav-shell{position:fixed;bottom:0;left:0;right:0;z-index:100;width:100%;max-width:100%;padding-bottom:env(safe-area-inset-bottom)}.nav-expand-btn{display:flex;align-items:center;justify-content:center;gap:6px;margin:0 auto 8px;min-height:44px;padding:8px 18px;border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--text);box-shadow:0 4px 16px #0f172a1f;cursor:pointer;font-size:13px;font-weight:600}.nav-expand-btn:hover{color:var(--purple);border-color:#ddd6fe;background:#faf5ff}.nav-expand-icon{font-size:16px;line-height:1}.bottom-nav{background:#fff;border-top:1px solid var(--border);box-shadow:0 -2px 12px #0000000a;width:100%;max-width:100%}.nav-collapse-btn{display:flex;flex-direction:column;align-items:center;gap:2px;width:100%;padding:6px 0 2px;border:none;background:transparent;color:var(--text-muted);cursor:pointer}.collapse-bar{width:36px;height:4px;border-radius:999px;background:#cbd5e1}.collapse-text{font-size:10px;line-height:1.2}.nav-items{display:flex;justify-content:space-around;align-items:flex-end;padding:0 4px 8px}.nav-item{display:flex;flex-direction:column;align-items:center;gap:2px;text-decoration:none;color:var(--text-muted);font-size:10px;padding:4px 12px;border-radius:8px;transition:all .2s}.nav-item.active{color:var(--purple)}.nav-item.active .nav-icon{transform:scale(1.15)}.nav-icon{font-size:20px;transition:transform .2s}.nav-label{font-weight:500}.nav-item:hover{color:var(--purple);background:#f5f3ff}@media (max-width: 768px){.main-content{padding-top:40px}}@media (max-width: 480px){.top-status{top:4px;left:8px;right:auto;max-width:calc(100vw - 16px);flex-wrap:wrap;gap:6px}.user-badge{max-width:min(52vw,200px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:10px;padding:4px 8px}.logout-btn{min-height:44px;min-width:44px;padding:8px 12px;font-size:12px}.main-content{padding-top:52px}.nav-items{padding-left:0;padding-right:0;gap:0}.nav-item{padding:4px 2px;min-height:44px;min-width:0;flex:1;justify-content:center}.nav-icon{font-size:18px}.nav-label{font-size:10px;white-space:nowrap;line-height:1.2}}