:root{--primary-color:#007aff;--bg-color:#f2f2f7;--card-bg:#fff;--text-color:#1c1c1e;--text-secondary:#8e8e93;--border-color:#e5e5ea;--danger-color:#ff3b30;--success-color:#34c759;--shadow:0 4px 16px #0000000f}@media (prefers-color-scheme:dark){:root{--primary-color:#0a84ff;--bg-color:#000;--card-bg:#1c1c1e;--text-color:#f2f2f7;--text-secondary:#8e8e93;--border-color:#38383a;--shadow:0 4px 16px #0000004d}}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);-webkit-font-smoothing:antialiased;padding-bottom:80px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a,button,input,select{touch-action:manipulation}.app-container{max-width:1200px;margin:0 auto;padding:16px}.glass-card{background:var(--card-bg);box-shadow:var(--shadow);border:1px solid var(--border-color);border-radius:16px;margin-bottom:20px;padding:20px}.top-nav{justify-content:flex-start;align-items:center;gap:30px;display:flex}.nav-buttons{flex:1;gap:8px;display:flex}.nav-item{cursor:pointer;color:var(--text-color);background:0 0;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:10px 16px;font-weight:600;transition:all .2s;display:flex}.nav-item.active{background:var(--primary-color);color:#fff}.hamburger-btn{display:none}@media (width<=768px){body{padding-bottom:20px}header.glass-card{border-radius:0;margin:-16px -16px 20px;padding:20px;box-shadow:0 4px 12px #0000000d}.hamburger-btn{color:var(--text-color);cursor:pointer;z-index:2000;background:0 0;border:none;display:block}.nav-buttons{background:var(--bg-color);z-index:1000;flex-direction:column;justify-content:flex-start;width:85%;max-width:320px;padding:80px 20px 20px;transition:left .3s cubic-bezier(.4,0,.2,1);position:fixed;top:0;bottom:0;left:-100%;box-shadow:4px 0 24px #00000026}.nav-buttons.open{left:0}.nav-item{border-radius:12px;flex-direction:row;justify-content:flex-start;min-width:100%;padding:16px;font-size:1.1rem}.nav-item.active{color:var(--primary-color);background:#007aff1a}.nav-item svg{margin-right:12px}}.grid-layout{grid-template-columns:1fr;gap:20px;display:grid}@media (width>=768px){.grid-layout{grid-template-columns:350px 1fr}.hide-text-desktop span{display:none}}h1,h2,h3{letter-spacing:-.02em;margin-bottom:1rem;font-weight:700}input,select,button{font-family:inherit;font-size:1rem}.form-group{margin-bottom:16px}.form-group label{color:var(--text-color);margin-bottom:6px;font-size:.9rem;font-weight:600;display:block}.form-control{border:1px solid var(--border-color);background:var(--bg-color);width:100%;color:var(--text-color);border-radius:12px;min-height:44px;padding:14px 16px;transition:all .2s}.form-control:focus{border-color:var(--primary-color);outline:none;box-shadow:0 0 0 3px #007aff33}.btn{cursor:pointer;border:none;border-radius:12px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:12px 20px;font-weight:600;transition:transform .1s,opacity .2s;display:inline-flex}.btn:active{transform:scale(.97)}.btn-primary{background-color:var(--primary-color);color:#fff}.btn-success{background-color:var(--success-color);color:#fff}.btn-danger{background-color:var(--danger-color);color:#fff}.icon-btn{width:40px;height:40px;color:var(--text-color);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;transition:all .2s;display:inline-flex}.icon-btn:hover{background:#0000000d}.icon-btn:active{transform:scale(.92)}@media (prefers-color-scheme:dark){.icon-btn:hover{background:#ffffff1a}}.category-group{margin-bottom:24px}.category-title{letter-spacing:-.01em;margin-bottom:12px;padding-left:4px;font-size:1.3rem;font-weight:700}.item-list{flex-direction:column;gap:12px;display:flex}.shopping-item{background:var(--card-bg);border:1px solid var(--border-color);border-radius:16px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:16px;display:flex;box-shadow:0 2px 8px #0000000a}.shopping-item.bought{opacity:.5}.badge{background:var(--primary-color);color:#fff;border-radius:12px;margin-left:8px;padding:2px 8px;font-size:.8rem;font-weight:700}.autocomplete-wrapper{position:relative}.autocomplete-dropdown{background:var(--card-bg);border:1px solid var(--border-color);z-index:100;max-height:250px;box-shadow:var(--shadow);border-radius:12px;margin-top:8px;position:absolute;top:100%;left:0;right:0;overflow-y:auto}.autocomplete-item{cursor:pointer;border-bottom:1px solid var(--border-color);padding:14px 16px;font-weight:500}.autocomplete-item:last-child{border-bottom:none}.autocomplete-item:hover{background:var(--bg-color)}