*{margin:0;padding:0;box-sizing:border-box}body{background:#111;color:#eee;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.app{max-width:480px;margin:0 auto;min-height:100vh;padding:0 12px 24px}.login-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:24px}.login-screen h1{font-size:2rem;color:#f7b731;letter-spacing:2px}.login-screen input{width:100%;max-width:300px;padding:14px 16px;background:#ffffff0f;border:1px solid rgba(255,255,255,.15);border-radius:8px;color:#fff;font-size:16px;outline:none}.login-screen input:focus{border-color:#f7b731}.login-screen .login-btn{width:100%;max-width:300px;padding:14px;background:linear-gradient(135deg,#f7b731,#e09800);border:none;border-radius:8px;color:#111;font-size:16px;font-weight:700;cursor:pointer;min-height:44px}.login-error{color:#e74c3c;font-size:14px}.header{display:flex;align-items:center;justify-content:space-between;padding:16px 0 12px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:16px}.header h1{font-size:1.2rem;color:#f7b731;letter-spacing:1px}.header-right{display:flex;align-items:center;gap:8px}.header-badge{background:#ffffff14;padding:4px 10px;border-radius:12px;font-size:12px;color:#aaa;font-family:SF Mono,Fira Code,monospace}.nav-btn{background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:8px 12px;color:#eee;font-size:16px;cursor:pointer;min-height:44px;min-width:44px;display:flex;align-items:center;justify-content:center}.nav-btn:active{background:#ffffff1f}.logout-btn{background:none;border:1px solid rgba(255,255,255,.1);border-radius:8px;padding:8px 10px;color:#888;font-size:12px;cursor:pointer;min-height:44px}.mode-toggle{display:flex;gap:8px;margin-bottom:16px}.mode-btn{flex:1;padding:14px;border-radius:10px;font-size:15px;font-weight:700;cursor:pointer;min-height:44px;border:2px solid transparent;background:#ffffff0a;color:#888;transition:all .15s}.mode-btn.buy-active{background:#e74c3c26;border-color:#e74c3c;color:#e74c3c}.mode-btn.sell-active{background:#2ecc7126;border-color:#2ecc71;color:#2ecc71}.snap-btn{width:100%;padding:16px;background:linear-gradient(135deg,#f7b731,#e09800);border:none;border-radius:12px;color:#111;font-size:17px;font-weight:700;cursor:pointer;min-height:52px;margin-bottom:16px}.snap-btn:disabled{opacity:.4;cursor:not-allowed}.snap-btn:active:not(:disabled){transform:scale(.98)}.scanning{text-align:center;padding:20px;color:#f7b731;font-size:15px;animation:pulse 1.2s ease-in-out infinite}@keyframes pulse{0%,to{opacity:.4}50%{opacity:1}}.card-item{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:12px;margin-bottom:8px;display:flex;align-items:center;gap:10px}.card-info{flex:1;min-width:0}.card-name{font-weight:700;font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-sub{font-size:12px;color:#888;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-price-input{width:80px;padding:8px;background:#ffffff0f;border:1px solid rgba(255,255,255,.15);border-radius:6px;color:#fff;font-family:SF Mono,Fira Code,monospace;font-size:15px;text-align:right;outline:none}.card-price-input:focus{border-color:#f7b731}.card-price-input.needs-price{border-color:#e74c3c;border-width:2px}.card-remove{background:none;border:none;color:#666;font-size:18px;cursor:pointer;padding:8px;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}.batch-summary{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:14px;margin:12px 0;text-align:center}.batch-summary .count{font-size:14px;color:#aaa}.batch-summary .needs-pricing{color:#e74c3c;font-size:13px;margin-top:4px}.batch-summary .total{font-size:22px;font-weight:700;font-family:SF Mono,Fira Code,monospace;color:#f7b731;margin-top:6px}.action-row{display:flex;gap:8px;margin-top:12px}.clear-btn{flex:1;padding:14px;background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:10px;color:#aaa;font-size:15px;font-weight:600;cursor:pointer;min-height:48px}.complete-btn{flex:2;padding:14px;border:none;border-radius:10px;font-size:15px;font-weight:700;cursor:pointer;min-height:48px}.complete-btn:disabled{opacity:.3;cursor:not-allowed}.complete-btn.sell{background:linear-gradient(135deg,#2ecc71,#1fa85a);color:#fff}.complete-btn.buy{background:linear-gradient(135deg,#e74c3c,#c0392b);color:#fff}.overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#000000d9;display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}.overlay-box{background:#1a1a1a;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:28px;max-width:360px;width:100%;text-align:center}.overlay-box h2{font-size:18px;margin-bottom:12px}.overlay-box .amount{font-size:32px;font-weight:700;font-family:SF Mono,Fira Code,monospace;color:#f7b731;margin:12px 0}.overlay-box .detail{color:#888;font-size:14px;margin-bottom:20px}.overlay-btns{display:flex;gap:10px}.overlay-btns button{flex:1;padding:14px;border-radius:10px;font-size:15px;font-weight:700;cursor:pointer;min-height:48px}.overlay-back{background:#ffffff0f;border:1px solid rgba(255,255,255,.1);color:#aaa}.overlay-confirm{background:linear-gradient(135deg,#2ecc71,#1fa85a);border:none;color:#fff}.overlay-confirm.buy{background:linear-gradient(135deg,#e74c3c,#c0392b)}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:#2ecc71;color:#fff;padding:14px 24px;border-radius:12px;font-weight:700;font-size:15px;z-index:200;animation:slideUp .3s ease-out;white-space:nowrap}.toast.buy{background:#e74c3c}@keyframes slideUp{0%{transform:translate(-50%) translateY(40px);opacity:0}to{transform:translate(-50%) translateY(0);opacity:1}}.view-header{display:flex;align-items:center;gap:12px;padding:16px 0 12px;border-bottom:1px solid rgba(255,255,255,.08);margin-bottom:16px}.back-btn{background:none;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#eee;font-size:18px;cursor:pointer;min-width:44px;min-height:44px;display:flex;align-items:center;justify-content:center}.view-header h1{flex:1;font-size:1.1rem;color:#f7b731}.search-bar{width:100%;padding:12px 14px;background:#ffffff0f;border:1px solid rgba(255,255,255,.1);border-radius:10px;color:#fff;font-size:15px;margin-bottom:14px;outline:none}.search-bar:focus{border-color:#f7b731}.stat-boxes{display:flex;gap:8px;margin-bottom:16px}.stat-box{flex:1;background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:14px;text-align:center}.stat-box .label{font-size:12px;color:#888;margin-bottom:4px}.stat-box .value{font-size:20px;font-weight:700;font-family:SF Mono,Fira Code,monospace}.stat-box .value.green{color:#2ecc71}.stat-box .value.amber{color:#f7b731}.stat-box .value.red{color:#e74c3c}.inv-item{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:12px;margin-bottom:6px;display:flex;justify-content:space-between;align-items:center}.inv-item .inv-name{font-weight:700;font-size:14px}.inv-item .inv-sub{font-size:11px;color:#888;margin-top:2px}.inv-item .inv-price{font-family:SF Mono,Fira Code,monospace;font-weight:700;font-size:15px;color:#2ecc71}.log-entry{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:10px;padding:12px;margin-bottom:6px}.log-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}.log-badge{padding:3px 8px;border-radius:6px;font-size:11px;font-weight:700;text-transform:uppercase}.log-badge.sell{background:#2ecc7133;color:#2ecc71}.log-badge.buy{background:#e74c3c33;color:#e74c3c}.log-amount{font-family:SF Mono,Fira Code,monospace;font-weight:700;font-size:16px}.log-amount.sell{color:#2ecc71}.log-amount.buy{color:#e74c3c}.log-detail{font-size:12px;color:#888}.log-cards{font-size:12px;color:#666;margin-top:4px}.data-btns{display:flex;gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,.08)}.data-btn{flex:1;padding:12px;background:#ffffff0a;border:1px solid rgba(255,255,255,.1);border-radius:8px;color:#aaa;font-size:13px;cursor:pointer;min-height:44px}.empty-state{text-align:center;color:#555;padding:40px 20px;font-size:14px}.file-input{display:none}