:root{color:#121212;font-synthesis:none;text-rendering:optimizelegibility;background:#f5f5f5;font-family:Segoe UI,sans-serif}:root[data-theme=dark]{color:#fff;background:#121212}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button:focus-visible,a:focus-visible,select:focus-visible{outline-offset:2px;outline:3px solid #1976d2}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}:root{--background:#f5f5f5;--surface:#fff;--surface-muted:#fafafa;--text:#121212;--text-muted:#555;--border:#ddd;--accent:#d62828;--accent-contrast:#fff}:root[data-theme=dark]{--background:#121212;--surface:#1e1e1e;--surface-muted:#2b2b2b;--text:#fff;--text-muted:#bdbdbd;--border:#454545;--accent:#ef5350;--accent-contrast:#121212}.app-shell{background:var(--background);min-height:100vh;color:var(--text)}.app-header{background:var(--surface);border-bottom:1px solid var(--border);align-items:center;gap:24px;min-height:64px;padding:0 24px;display:flex}.brand{color:var(--text);font-size:22px;font-weight:700;text-decoration:none}nav{flex:1;gap:4px;display:flex}.nav-link{color:var(--text-muted);border-radius:4px;align-items:center;gap:8px;padding:10px 12px;text-decoration:none;display:inline-flex}.nav-link:hover,.nav-link.active{color:var(--text);background:var(--surface-muted)}.nav-link.active{box-shadow:inset 0 -2px var(--accent)}.page-content{width:min(1400px,100%);margin:0 auto;padding:32px 24px 48px}.page-header{justify-content:space-between;gap:16px;margin-bottom:32px;display:flex}.page-header h1{margin:0 0 8px;font-size:32px}.page-header p,.metric-card span{color:var(--text-muted)}.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;display:grid}.metric-card,.panel{background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:20px}.metric-card strong{margin-top:8px;font-size:28px;display:block}.panel{margin-top:16px}.empty-state,.error-state{border:1px dashed var(--border);color:var(--text-muted);text-align:center;border-radius:6px;padding:32px}.error-state{border-color:var(--accent);color:var(--text)}.primary-button{background:var(--accent);color:var(--accent-contrast);cursor:pointer;border:0;border-radius:4px;padding:10px 14px;font-weight:700}.theme-select{border:1px solid var(--border);background:var(--surface);max-width:150px;min-height:36px;color:var(--text);border-radius:4px;padding:6px 8px}@media (width<=720px){.app-header{flex-wrap:wrap;align-items:flex-start;gap:12px;padding:12px 16px}nav{order:3;width:100%;overflow-x:auto}.page-content{padding:24px 16px 40px}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-header{flex-direction:column}}.item-form{flex-direction:column;gap:20px;max-width:560px;display:flex}.form-field{flex-direction:column;gap:6px;display:flex}.form-field label{font-weight:600}.form-field input,.form-field textarea{border:1px solid var(--border);background:var(--surface);color:var(--text);font:inherit;border-radius:4px;padding:10px 12px}.form-field textarea{resize:vertical;min-height:80px}.form-row{flex-wrap:wrap;gap:16px;display:flex}.form-row .form-field{flex:220px}.form-actions{align-items:center;gap:12px;display:flex}.secondary-button{border:1px solid var(--border);background:var(--surface);color:var(--text);cursor:pointer;border-radius:4px;align-items:center;padding:10px 14px;font-weight:700;text-decoration:none;display:inline-flex}.inventory-list{flex-direction:column;gap:12px;margin:0;padding:0;list-style:none;display:flex}.inventory-list li{border:1px solid var(--border);background:var(--surface);border-radius:6px;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.inventory-list .item-meta{flex-direction:column;gap:4px;display:flex}.inventory-list .item-meta span{color:var(--text-muted);font-size:14px}.expiration-badge{white-space:nowrap;border-radius:999px;align-items:center;padding:4px 10px;font-size:13px;font-weight:700;display:inline-flex}.expiration-badge.Healthy{color:#1b7f37;background:#e3f5e6}.expiration-badge.ExpiringSoon{color:#8a6400;background:#fff2cc}.expiration-badge.Expired{color:#b3261e;background:#fde3e3}.expiration-badge.NotTracked{background:var(--surface-muted);color:var(--text-muted)}:root[data-theme=dark] .expiration-badge.Healthy{color:#7fd996;background:#1b3a24}:root[data-theme=dark] .expiration-badge.ExpiringSoon{color:#f0c869;background:#3a2f0f}:root[data-theme=dark] .expiration-badge.Expired{color:#f28b8b;background:#3a1717}.item-details dl{grid-template-columns:max-content 1fr;gap:8px 16px;margin:0 0 20px;display:grid}.item-details dt{color:var(--text-muted)}.item-details dd{margin:0}.modal-overlay{z-index:100;background:#0009;justify-content:center;align-items:center;padding:16px;display:flex;position:fixed;inset:0}.modal{width:min(420px,100%);margin:0}.modal-thumbnail{background:var(--surface-muted);width:64px;height:64px;color:var(--text-muted);border-radius:6px;justify-content:center;align-items:center;margin-bottom:12px;display:flex}.modal dl{grid-template-columns:max-content 1fr;gap:8px 16px;margin:16px 0;display:grid}.modal dt{color:var(--text-muted)}.modal dd{margin:0}@media (width<=720px){.form-row{flex-direction:column}}.scanner{flex-direction:column;gap:16px;max-width:480px;display:flex}.scanner-video{background:#000;border-radius:6px;width:100%;max-height:360px}