:root{--primary: #4F46E5;--primary-dark: #4338CA;--primary-light: #EEF2FF;--primary-glow: rgba(79, 70, 229, .15);--success: #10B981;--success-light: #D1FAE5;--success-dark: #065F46;--error: #EF4444;--error-light: #FEE2E2;--error-dark: #991B1B;--bg: #F0F2F8;--surface: #FFFFFF;--surface-2: #F8FAFC;--surface-hover: #F1F5F9;--border: #E2E8F0;--border-strong: #CBD5E1;--text: #0F172A;--text-2: #475569;--text-3: #94A3B8;--font-display: "Syne", sans-serif;--font-body: "DM Sans", sans-serif;--font-mono: "JetBrains Mono", monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--radius-xl: 18px;--radius-2xl: 24px;--radius-pill: 9999px;--shadow-xs: 0 1px 3px rgba(15,23,42,.04), 0 1px 2px rgba(15,23,42,.04);--shadow-sm: 0 2px 8px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.04);--shadow-md: 0 4px 16px rgba(15,23,42,.08), 0 2px 6px rgba(15,23,42,.04);--shadow-primary: 0 4px 14px rgba(79,70,229,.35);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--ease-out: cubic-bezier(.16, 1, .3, 1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-body);font-size:15px;line-height:1.55;color:var(--text);background:var(--bg);min-height:100vh;background-image:radial-gradient(ellipse 80% 50% at 50% -10%,rgba(79,70,229,.07) 0%,transparent 60%)}button{cursor:pointer;font-family:inherit}ul,ol{list-style:none}svg{display:block;flex-shrink:0}#app{min-height:100vh;display:flex;flex-direction:column}.app-header{position:sticky;top:0;z-index:50;background:#f0f2f8d9;-webkit-backdrop-filter:blur(16px) saturate(180%);backdrop-filter:blur(16px) saturate(180%);border-bottom:1px solid rgba(226,232,240,.8)}.header-inner{max-width:880px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;gap:16px}.logo{display:flex;align-items:center;gap:10px}.logo-icon svg{width:36px;height:36px}.logo-text{font-family:var(--font-display);font-size:20px;font-weight:700;letter-spacing:-.04em;color:var(--text)}.logo-text strong{color:var(--primary);font-weight:800}.header-tagline{font-size:12px;color:var(--text-3);letter-spacing:.01em}.app-main{flex:1;max-width:880px;width:100%;margin:0 auto;padding:40px 24px 80px;display:flex;flex-direction:column;gap:20px}.app-footer{text-align:center;padding:24px;font-size:12px;color:var(--text-3);border-top:1px solid var(--border)}.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 20px;border:none;border-radius:var(--radius-md);font-family:var(--font-body);font-size:14px;font-weight:600;letter-spacing:-.01em;transition:background .15s ease,transform .15s ease,box-shadow .15s ease,opacity .15s ease;white-space:nowrap;text-decoration:none}.btn svg{width:15px;height:15px}.btn-sm{padding:8px 14px;font-size:13px}.btn-sm svg{width:14px;height:14px}.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-primary)}.btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px);box-shadow:0 6px 20px #4f46e573}.btn-primary:active:not(:disabled){transform:translateY(0)}.btn-primary:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}.btn-secondary{background:var(--surface);color:var(--text);border:1.5px solid var(--border);box-shadow:var(--shadow-xs)}.btn-secondary:hover:not(:disabled){background:var(--surface-hover);border-color:var(--border-strong);transform:translateY(-1px);box-shadow:var(--shadow-sm)}.btn-secondary:disabled{opacity:.4;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--text-2);padding:10px 16px}.btn-ghost:hover{background:var(--error-light);color:var(--error)}.btn-compress{padding:12px 28px;font-size:15px}.drop-zone{position:relative;background:var(--surface);border:2px dashed var(--border-strong);border-radius:var(--radius-2xl);padding:72px 40px;text-align:center;cursor:default;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;overflow:hidden}.drop-zone-glow{position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(ellipse 70% 60% at 50% 0%,rgba(79,70,229,.05),transparent);pointer-events:none}.drop-zone.drag-over{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 4px var(--primary-glow),var(--shadow-md)}.drop-zone.drag-over .drop-zone-icon{color:var(--primary);transform:translateY(-6px) scale(1.08)}.drop-zone-content{position:relative;z-index:1}.drop-zone-icon{width:56px;height:56px;margin:0 auto 20px;color:var(--text-3);transition:color .25s ease,transform .35s var(--ease-spring)}.drop-zone-icon svg{width:100%;height:100%}.drop-zone-title{font-family:var(--font-display);font-size:26px;font-weight:800;letter-spacing:-.04em;color:var(--text);margin-bottom:8px}.drop-zone-subtitle{font-size:15px;color:var(--text-2);margin-bottom:28px}.drop-zone-buttons{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-bottom:20px}.drop-zone-hint{font-size:12px;color:var(--text-3);letter-spacing:.01em}.settings-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);overflow:hidden}.settings-row{padding:24px;display:flex;flex-direction:column;gap:20px}.settings-header{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}.settings-title{font-family:var(--font-display);font-size:15px;font-weight:700;letter-spacing:-.03em}.settings-note{font-size:12px;color:var(--text-3)}.level-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}@media(max-width:600px){.level-cards{grid-template-columns:repeat(2,1fr)}}.level-card{background:var(--surface-2);border:2px solid var(--border);border-radius:var(--radius-lg);padding:14px;text-align:left;cursor:pointer;transition:border-color .15s ease,background .15s ease,transform .2s var(--ease-spring),box-shadow .15s ease;display:flex;flex-direction:column;gap:10px}.level-card:hover{border-color:#4f46e573;background:var(--surface);transform:translateY(-2px);box-shadow:var(--shadow-md)}.level-card.selected{border-color:var(--primary);background:var(--primary-light);box-shadow:0 0 0 1px var(--primary),var(--shadow-sm);transform:translateY(-2px)}.level-card-top{display:flex;align-items:center;justify-content:space-between;gap:6px}.level-name{font-family:var(--font-display);font-size:14px;font-weight:700;letter-spacing:-.03em}.level-card.selected .level-name{color:var(--primary)}.level-badge{font-family:var(--font-mono);font-size:10px;font-weight:500;color:var(--primary);background:#4f46e51f;padding:2px 7px;border-radius:var(--radius-pill);white-space:nowrap}.level-bar{height:4px;background:var(--border);border-radius:var(--radius-pill);overflow:hidden}.level-fill{height:100%;background:linear-gradient(90deg,var(--primary),#818CF8);border-radius:var(--radius-pill);opacity:.35;transition:opacity .2s ease}.level-card.selected .level-fill{opacity:1}.level-desc{font-size:11px;color:var(--text-2);line-height:1.4}.settings-actions{display:flex;align-items:center;gap:10px;padding-top:4px;border-top:1px solid var(--border)}.file-queue{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm);overflow:hidden}.queue-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border)}.queue-title{font-family:var(--font-display);font-size:15px;font-weight:700;letter-spacing:-.03em}.queue-cols{display:grid;grid-template-columns:1fr 100px 160px 72px;padding:8px 24px;background:var(--surface-2);border-bottom:1px solid var(--border);font-size:11px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:.07em}.empty-state{padding:48px 24px;text-align:center;color:var(--text-3);font-size:14px}.file-row{display:grid;grid-template-columns:1fr 100px 160px 72px;align-items:center;padding:12px 24px;border-bottom:1px solid var(--border);transition:background .12s ease;animation:rowIn .2s var(--ease-out) both}@keyframes rowIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}.file-row:last-child{border-bottom:none}.file-row:hover{background:var(--surface-hover)}.file-info{display:flex;align-items:center;gap:10px;min-width:0}.file-icon{font-size:17px;line-height:1;flex-shrink:0}.file-name{font-size:14px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:-.01em}.file-size-orig,.file-size-comp{font-family:var(--font-mono);font-size:13px}.file-size-orig{color:var(--text-2)}.file-size-comp{color:var(--text);font-weight:500}.done-info{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;padding:3px 9px;border-radius:var(--radius-pill);font-family:var(--font-mono);font-size:11px;font-weight:500;white-space:nowrap}.badge-pending{background:#f1f5f9;color:var(--text-3)}.badge-success{background:var(--success-light);color:var(--success-dark)}.badge-error{background:var(--error-light);color:var(--error-dark);cursor:help}.progress-wrap{display:flex;flex-direction:column;gap:5px}.progress-bar{height:5px;background:var(--border);border-radius:var(--radius-pill);overflow:hidden}.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary) 0%,#818CF8 100%);border-radius:var(--radius-pill);transition:width .3s ease;position:relative;overflow:hidden}.progress-fill:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(90deg,transparent 0%,rgba(255,255,255,.45) 50%,transparent 100%);transform:translate(-100%);animation:shimmer 1.4s infinite}@keyframes shimmer{to{transform:translate(200%)}}.progress-label{font-family:var(--font-mono);font-size:11px;color:var(--text-3)}.file-actions{display:flex;align-items:center;justify-content:flex-end;gap:2px}.btn-icon{width:30px;height:30px;border:none;border-radius:var(--radius-sm);background:transparent;color:var(--text-3);display:flex;align-items:center;justify-content:center;transition:background .12s ease,color .12s ease}.btn-icon svg{width:15px;height:15px}.btn-download:hover{background:var(--primary-light);color:var(--primary)}.btn-remove:hover{background:var(--error-light);color:var(--error)}.summary-bar{display:flex;align-items:center;gap:10px;padding:14px 20px;background:var(--success-light);border:1px solid rgba(16,185,129,.25);border-radius:var(--radius-xl);font-size:14px;font-weight:500;color:var(--success-dark);animation:slideUp .3s var(--ease-out) both}@keyframes slideUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.summary-icon{width:20px;height:20px;color:var(--success)}.hidden{display:none!important}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-3)}:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}