:root{--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#eef2ff;--text:#374151;--text-light:#6b7280;--text-heading:#111827;--bg:#f9fafb;--card-bg:#fff;--border:#e5e7eb;--error:#ef4444;--success:#10b981;--success-bg:#ecfdf5;color:var(--text);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{min-height:100dvh}#root{max-width:480px;min-height:100dvh;margin:0 auto}.meal-form{flex-direction:column;gap:20px;padding:20px 0;display:flex}.meal-form fieldset{border:none;flex-direction:column;gap:20px;margin:0;padding:0;display:flex}.meal-form fieldset:disabled{opacity:.5;pointer-events:none}.field{flex-direction:column;gap:6px;display:flex}.field label{color:var(--text-heading);font-size:13px;font-weight:600}.field input,.field select{border:1px solid var(--border);background:var(--card-bg);color:var(--text-heading);-webkit-appearance:none;border-radius:10px;outline:none;padding:12px;font-size:16px;transition:border-color .2s}.field input:focus,.field select:focus{border-color:var(--primary)}.amount-wrap{align-items:center;display:flex;position:relative}.amount-wrap input{text-align:right;width:100%;padding-right:36px;font-size:20px;font-weight:600}.amount-wrap .unit{color:var(--text-light);pointer-events:none;font-size:15px;position:absolute;right:12px}.card-options{gap:8px;display:flex}.card-btn{border:1.5px solid var(--border);background:var(--card-bg);color:var(--text);cursor:pointer;border-radius:10px;flex:1;padding:10px 0;font-size:15px;font-weight:500;transition:all .2s}.card-btn.selected{border-color:var(--primary);background:var(--primary-light);color:var(--primary);font-weight:600}.file-upload{border:2px dashed var(--border);cursor:pointer;border-radius:12px;justify-content:center;align-items:center;padding:32px 16px;transition:border-color .2s;display:flex}.file-upload:hover{border-color:var(--primary)}.file-upload input{display:none}.file-upload-text{color:var(--text-light);font-size:14px}.preview-wrap{display:inline-block;position:relative}.preview-img{object-fit:contain;border:1px solid var(--border);border-radius:10px;width:100%;max-height:240px}.remove-btn{color:#fff;cursor:pointer;background:#0009;border:none;border-radius:6px;padding:4px 12px;font-size:13px;position:absolute;top:8px;right:8px}.result-msg{text-align:center;border-radius:10px;padding:12px;font-size:14px;font-weight:500}.result-msg.success{background:var(--success-bg);color:var(--success)}.result-msg.error{color:var(--error);background:#fef2f2}.submit-btn{background:var(--primary);color:#fff;cursor:pointer;border:none;border-radius:12px;padding:14px;font-size:16px;font-weight:600;transition:background .2s}.submit-btn:hover:not(:disabled){background:var(--primary-hover)}.submit-btn:disabled{opacity:.6;cursor:not-allowed}.history{flex-direction:column;gap:12px;padding:16px 0;display:flex}.history-status{text-align:center;color:var(--text-light);padding:40px 0;font-size:14px}.history-status.error{color:var(--error)}.history-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:14px 16px}.history-top{justify-content:space-between;align-items:center;margin-bottom:6px;display:flex}.history-date{color:var(--text-heading);font-size:14px;font-weight:600}.history-member{color:var(--primary);background:var(--primary-light);border-radius:6px;padding:2px 8px;font-size:13px;font-weight:500}.history-amount{color:var(--text-heading);margin-bottom:6px;font-size:20px;font-weight:700}.history-bottom{color:var(--text-light);gap:8px;font-size:13px;display:flex}.history-receipt-link{color:var(--primary);margin-top:8px;font-size:13px;text-decoration:none;display:inline-block}.app{padding:0 16px 32px}.app-header{text-align:center;padding:24px 0 0}.app-header h1{color:var(--text-heading);margin-bottom:2px;font-size:22px;font-weight:700}.subtitle{color:var(--text-light);margin-bottom:16px;font-size:13px}.tab-nav{border-bottom:2px solid var(--border);gap:0;display:flex}.tab-nav button{color:var(--text-light);cursor:pointer;background:0 0;border:none;border-bottom:2px solid #0000;flex:1;margin-bottom:-2px;padding:10px 0;font-size:15px;font-weight:500;transition:all .2s}.tab-nav button.active{color:var(--primary);border-bottom-color:var(--primary)}