:root{--font-family:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs:.7rem;--font-size-sm:.8rem;--font-size-base:.9rem;--font-size-md:1rem;--font-size-lg:1.25rem;--font-size-xl:1.5rem;--font-size-2xl:2rem;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--transition-fast:.15s ease;--transition-base:.25s ease;--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 12px #00000014, 0 2px 4px #0000000a;--shadow-lg:0 12px 40px #0000001a, 0 4px 12px #0000000f;--shadow-glow:0 0 30px #6366f126;--color-single:#6366f1;--color-single-bg:#6366f11a;--color-2pk:#f59e0b;--color-2pk-bg:#f59e0b1a;--color-4pk:#10b981;--color-4pk-bg:#10b9811a}:root,[data-theme=light]{--bg-primary:#f8f9fc;--bg-secondary:#fff;--bg-tertiary:#f1f3f8;--bg-hover:#eef0f6;--border-color:#e2e5ef;--border-subtle:#eef0f6;--text-primary:#1a1d2e;--text-secondary:#5a5f7a;--text-tertiary:#8b90a8;--accent:#6366f1;--accent-hover:#5558e6;--accent-soft:#6366f114;--glass-bg:#ffffffbf;--glass-border:#ffffff80;--table-stripe:#6366f108;--table-hover:#6366f10f}[data-theme=dark]{--bg-primary:#0f1117;--bg-secondary:#181a24;--bg-tertiary:#1f2230;--bg-hover:#262938;--border-color:#2a2d3e;--border-subtle:#222538;--text-primary:#e8eaf0;--text-secondary:#9da1b8;--text-tertiary:#6b6f88;--accent:#818cf8;--accent-hover:#6d78f4;--accent-soft:#818cf81a;--glass-bg:#181a24cc;--glass-border:#2a2d3e99;--table-stripe:#818cf808;--table-hover:#818cf812;--shadow-sm:0 1px 3px #0003, 0 1px 2px #00000026;--shadow-md:0 4px 12px #00000040, 0 2px 4px #00000026;--shadow-lg:0 12px 40px #00000059, 0 4px 12px #0003;--shadow-glow:0 0 40px #818cf81f;--color-single:#818cf8;--color-single-bg:#818cf81f;--color-2pk:#fbbf24;--color-2pk-bg:#fbbf241f;--color-4pk:#34d399;--color-4pk-bg:#34d3991f}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-family);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background var(--transition-slow), color var(--transition-base);min-height:100vh;line-height:1.6}.app{flex-direction:column;min-height:100vh;display:flex}.main{width:100%;max-width:1400px;padding:var(--space-lg) var(--space-lg) var(--space-2xl);flex:1;margin:0 auto}.header{z-index:100;background:var(--glass-bg);-webkit-backdrop-filter:blur(20px)saturate(180%);border-bottom:1px solid var(--border-subtle);transition:background var(--transition-base);position:sticky;top:0}.header-inner{max-width:1400px;padding:var(--space-md) var(--space-lg);justify-content:space-between;align-items:center;margin:0 auto;display:flex}.logo{align-items:center;gap:var(--space-md);display:flex}.logo-icon{border-radius:var(--radius-md);background:linear-gradient(135deg, var(--accent), #a78bfa);color:#fff;justify-content:center;align-items:center;width:44px;height:44px;display:flex;box-shadow:0 4px 16px #6366f14d}.logo h1{font-size:var(--font-size-lg);letter-spacing:-.02em;font-weight:800;line-height:1.2}.logo-subtitle{font-size:var(--font-size-xs);color:var(--text-tertiary);letter-spacing:.04em;text-transform:uppercase;font-weight:500}.theme-toggle{border-radius:var(--radius-md);border:1px solid var(--border-color);background:var(--bg-secondary);width:42px;height:42px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.theme-toggle:hover{border-color:var(--accent);color:var(--accent);box-shadow:var(--shadow-sm);transform:scale(1.05)}.icon-sun,.icon-moon{transition:all var(--transition-base);position:absolute}[data-theme=light] .icon-sun{opacity:1;transform:rotate(0)scale(1)}[data-theme=light] .icon-moon{opacity:0;transform:rotate(-90deg)scale(.5)}[data-theme=dark] .icon-sun{opacity:0;transform:rotate(90deg)scale(.5)}[data-theme=dark] .icon-moon{opacity:1;transform:rotate(0)scale(1)}.upload-section{margin-bottom:var(--space-xl)}.upload-zone{border:2px dashed var(--border-color);border-radius:var(--radius-xl);padding:var(--space-2xl) var(--space-xl);text-align:center;cursor:pointer;transition:all var(--transition-base);background:var(--bg-secondary);position:relative;overflow:hidden}.upload-zone:before{content:"";background:linear-gradient(135deg, var(--accent-soft), transparent, #a78bfa0d);opacity:0;transition:opacity var(--transition-base);position:absolute;inset:0}.upload-zone:hover,.upload-zone.drag-over{border-color:var(--accent);box-shadow:var(--shadow-glow);transform:translateY(-2px)}.upload-zone:hover:before,.upload-zone.drag-over:before{opacity:1}.upload-zone.drag-over{border-style:solid}.upload-icon{color:var(--text-tertiary);margin-bottom:var(--space-md);transition:all var(--transition-base)}.upload-zone:hover .upload-icon,.upload-zone.drag-over .upload-icon{color:var(--accent);transform:translateY(-4px)}.upload-zone h2{font-size:var(--font-size-xl);margin-bottom:var(--space-sm);font-weight:700;position:relative}.upload-zone p{color:var(--text-secondary);font-size:var(--font-size-base);position:relative}.upload-hint{margin-top:var(--space-sm);font-size:var(--font-size-sm)!important;color:var(--text-tertiary)!important}.file-info{margin-top:var(--space-md);justify-content:center;display:flex}.file-chip{align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:var(--accent-soft);color:var(--accent);border-radius:var(--radius-full);font-size:var(--font-size-sm);border:1px solid #0000;font-weight:600;animation:.3s chipIn;display:inline-flex}@keyframes chipIn{0%{opacity:0;transform:translateY(8px)scale(.95)}to{opacity:1;transform:translateY(0)scale(1)}}.clear-btn{width:22px;height:22px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);background:#00000014;border:none;border-radius:50%;justify-content:center;align-items:center;display:flex}[data-theme=dark] .clear-btn{background:#ffffff1a}.clear-btn:hover{color:#ef4444;background:#ef444426}.results-section{animation:.5s fadeUp}@keyframes fadeUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.stats-bar{gap:var(--space-md);margin-bottom:var(--space-lg);grid-template-columns:repeat(4,1fr);display:grid}.stat{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-lg) var(--space-md);text-align:center;transition:all var(--transition-fast)}.stat:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.stat-value{font-size:var(--font-size-2xl);color:var(--accent);margin-bottom:var(--space-xs);font-weight:800;line-height:1;display:block}.stat-label{font-size:var(--font-size-xs);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;font-weight:600}.table-wrapper{background:var(--bg-secondary);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);margin-bottom:var(--space-lg);overflow:hidden}.data-table{border-collapse:collapse;width:100%;font-size:var(--font-size-sm)}.data-table thead{z-index:10;position:sticky;top:0}.data-table th{background:var(--bg-tertiary);padding:var(--space-md) var(--space-md);text-align:left;font-weight:700;font-size:var(--font-size-xs);text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);border-bottom:2px solid var(--border-color);white-space:nowrap}.data-table td{padding:var(--space-sm) var(--space-md);border-bottom:1px solid var(--border-subtle);transition:background var(--transition-fast);white-space:nowrap}.data-table tbody tr:nth-child(2n){background:var(--table-stripe)}.data-table tbody tr{transition:background var(--transition-fast)}.data-table tbody tr:hover{background:var(--table-hover)}.pack-badge{border-radius:var(--radius-full);font-size:var(--font-size-xs);letter-spacing:.02em;align-items:center;padding:2px 10px;font-weight:700;display:inline-flex}.pack-badge.single{background:var(--color-single-bg);color:var(--color-single)}.pack-badge.pack-2{background:var(--color-2pk-bg);color:var(--color-2pk)}.pack-badge.pack-4{background:var(--color-4pk-bg);color:var(--color-4pk)}.sku-cell{align-items:center;gap:var(--space-sm);display:flex}.sku-text{font-family:SF Mono,Fira Code,Consolas,monospace;font-size:var(--font-size-xs);font-weight:500}.price-cell{font-variant-numeric:tabular-nums;font-weight:600}.price-cell.amazon{color:var(--accent)}.markup-badge{border-radius:var(--radius-full);font-size:var(--font-size-xs);align-items:center;gap:3px;padding:2px 8px;font-weight:700;display:inline-flex}.markup-badge.markup-ok{color:#10b981;background:#10b9811f}.markup-badge.markup-warn{color:#f59e0b;background:#f59e0b1f}[data-theme=dark] .markup-badge.markup-ok{color:#34d399;background:#34d39926}[data-theme=dark] .markup-badge.markup-warn{color:#fbbf24;background:#fbbf2426}.markup-expected{color:var(--text-tertiary);margin-top:1px;font-size:.6rem;font-weight:500;display:block}.download-bar-top{margin-bottom:var(--space-lg)}.download-bar{justify-content:center;display:flex}.btn-download{align-items:center;gap:var(--space-sm);padding:var(--space-md) var(--space-xl);background:linear-gradient(135deg, var(--accent), #a78bfa);color:#fff;border-radius:var(--radius-md);font-size:var(--font-size-base);font-weight:700;font-family:var(--font-family);cursor:pointer;transition:all var(--transition-fast);border:none;display:inline-flex;box-shadow:0 4px 20px #6366f14d}.btn-download:hover{transform:translateY(-2px);box-shadow:0 8px 30px #6366f166}.btn-download:active{transform:translateY(0)}.footer{text-align:center;padding:var(--space-lg);color:var(--text-tertiary);font-size:var(--font-size-sm);border-top:1px solid var(--border-subtle)}.footer p{justify-content:center;align-items:center;gap:var(--space-xs);display:flex}@media (width<=768px){.header-inner{padding:var(--space-sm) var(--space-md)}.logo h1{font-size:var(--font-size-md)}.logo-subtitle{display:none}.main{padding:var(--space-md)}.upload-zone{padding:var(--space-xl) var(--space-md)}.upload-zone h2{font-size:var(--font-size-lg)}.stats-bar{gap:var(--space-sm);grid-template-columns:repeat(2,1fr)}.stat{padding:var(--space-md) var(--space-sm)}.stat-value{font-size:var(--font-size-xl)}.table-wrapper{border-radius:var(--radius-md);overflow-x:auto}.data-table th,.data-table td{padding:var(--space-sm);font-size:var(--font-size-xs)}.btn-download{width:100%;padding:var(--space-md);justify-content:center}}@media (width<=480px){.logo-icon{width:36px;height:36px}.logo-icon svg{width:20px;height:20px}.upload-icon svg{width:36px;height:36px}}