:root{--teal: #0f766e;--teal-dark: #0b5a54;--bg: #f6f7f8;--card: #ffffff;--line: #e6e8ea;--text: #14181b;--muted: #6b7280;--red: #dc2626}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text)}button{font:inherit;cursor:pointer}input,select{font:inherit;width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;background:#fff;margin:6px 0 12px}.app{max-width:520px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column;background:var(--bg)}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:var(--teal);color:#fff;position:sticky;top:0;z-index:5}.brand{font-weight:700;letter-spacing:.3px}.link{background:none;border:none;color:#d7f0ec;text-decoration:underline}.screen{flex:1;padding-bottom:72px}.pad{padding:16px}.muted{color:var(--muted)}.small{font-size:12px}.search{margin:12px;width:calc(100% - 24px)}.list{list-style:none;margin:0;padding:0}.row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);background:var(--card)}.row-title{font-weight:600}.row-sub{color:var(--muted);font-size:13px;margin-top:2px}.row-side{display:flex;flex-direction:column;align-items:flex-end;gap:4px}.badge{background:#e7f5f3;color:var(--teal-dark);border-radius:999px;padding:4px 10px;font-size:13px;font-weight:600;white-space:nowrap}.badge.low{background:#fdecec;color:var(--red)}.tabbar{position:fixed;bottom:0;left:0;right:0;max-width:520px;margin:0 auto;display:flex;background:#fff;border-top:1px solid var(--line)}.tab{flex:1;padding:14px 4px;border:none;background:none;color:var(--muted);font-size:13px}.tab.active{color:var(--teal);font-weight:700;box-shadow:inset 0 2px 0 var(--teal)}.primary{width:100%;padding:14px;border:none;border-radius:12px;background:var(--teal);color:#fff;font-weight:700}.primary:disabled{opacity:.6}.primary.sticky{position:sticky;bottom:80px;margin-top:16px}.order-list{margin-top:8px}.order-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.qty{width:72px;margin:0;text-align:center}.notice{background:#eef6ff;border:1px solid #cfe3fb;color:#1e3a8a;border-radius:10px;padding:12px;margin-top:12px}.error{color:var(--red)}.login{max-width:420px;margin:0 auto;padding:48px 20px;text-align:center}.brand-lg{color:var(--teal);margin-bottom:4px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:20px;margin-top:20px;text-align:left}.card label{font-size:13px;color:var(--muted)}