:root{--purple-50:#faf5ff;--purple-100:#f3e8ff;--purple-200:#e9d5ff;--purple-500:#6c3fc7;--purple-600:#4c00a4;--purple-700:#3b0080;--purple-800:#2d0063;--lime-300:#d4f053;--lime-400:#c5e533;--lime-500:#a8c41c;--radius-xs:4px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-full:9999px;--transition-fast:.12s ease;--transition-base:.2s ease}[data-theme=light]{--bg-body:#f5f3f7;--bg-surface:#fff;--bg-surface-hover:#faf8fc;--bg-input:#f1eef5;--bg-dropzone:#fff;--bg-dropzone-hover:#faf5ff;--accent:var(--purple-600);--accent-hover:var(--purple-700);--accent-subtle:var(--purple-50);--accent-border:var(--purple-200);--accent-text:var(--purple-600);--lime:var(--lime-400);--lime-subtle:#c5e5331f;--text-1:#1a1225;--text-2:#5c5470;--text-3:#9a8faa;--border:#e4dfe9;--border-strong:#d0c9da;--success:#16a34a;--success-subtle:#16a34a14;--error:#dc2626;--error-subtle:#dc26260f;--shadow-xs:0 1px 2px #5028780a;--shadow-sm:0 2px 8px #5028780f;--shadow-md:0 4px 16px #50287814;--shadow-focus:0 0 0 3px #6c3fc72e;--header-bg:#f5f3f7d9}[data-theme=dark]{--bg-body:#110e18;--bg-surface:#1c1726;--bg-surface-hover:#241e30;--bg-input:#1c1726;--bg-dropzone:#1c1726;--bg-dropzone-hover:#241e30;--accent:#b48efa;--accent-hover:#c9acfd;--accent-subtle:#b48efa1a;--accent-border:#b48efa40;--accent-text:#c9acfd;--lime:var(--lime-300);--lime-subtle:#d4f0531a;--text-1:#ede8f4;--text-2:#a89bbe;--text-3:#6e6384;--border:#2d2640;--border-strong:#3d3458;--success:#4ade80;--success-subtle:#4ade801a;--error:#f87171;--error-subtle:#f8717114;--shadow-xs:0 1px 2px #0003;--shadow-sm:0 2px 8px #0000004d;--shadow-md:0 4px 16px #00000059;--shadow-focus:0 0 0 3px #b48efa40;--header-bg:#110e18d9}*,:before,:after{box-sizing:border-box;margin:0;padding:0}[hidden]{display:none!important}html{-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;font-size:16px}body{background:var(--bg-body);color:var(--text-1);min-height:100vh;transition:background var(--transition-base), color var(--transition-base);flex-direction:column;display:flex}body:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(at 15% 10%,#6c3fc712 0%,#0000 55%),radial-gradient(at 85% 90%,#c5e5330d 0%,#0000 55%);position:fixed;inset:0}.container{width:100%;max-width:880px;margin:0 auto;padding:0 20px}.header{z-index:100;background:var(--header-bg);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--border);transition:background var(--transition-base);position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;height:56px;display:flex}.logo{align-items:center;gap:9px;display:flex}.logo-icon{border-radius:var(--radius-sm);background:var(--lime);color:#1a1225;justify-content:center;align-items:center;width:34px;height:34px;display:flex}[data-theme=dark] .logo-icon{background:var(--lime);color:#1a1225;border:none}.logo-text{letter-spacing:-.03em;color:var(--text-1);font-size:1.05rem;font-weight:800}.theme-toggle{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--bg-surface);width:36px;height:36px;color:var(--text-2);cursor:pointer;transition:all var(--transition-fast);justify-content:center;align-items:center;display:flex}.theme-toggle:hover{color:var(--accent-text);border-color:var(--accent-border);background:var(--accent-subtle)}[data-theme=light] .icon-sun,[data-theme=dark] .icon-moon{display:none}.hero{text-align:center;z-index:1;padding:44px 0 24px;position:relative}.hero-title{letter-spacing:-.03em;margin-bottom:8px;font-size:clamp(1.5rem,3.5vw,2.2rem);font-weight:800;line-height:1.2}.accent-text{color:var(--accent-text)}.hero-subtitle{color:var(--text-2);max-width:460px;margin:0 auto;font-size:.95rem;line-height:1.6}.dropzone-wrapper{z-index:1;margin-bottom:20px;position:relative}.dropzone{border:2px dashed var(--border-strong);border-radius:var(--radius-lg);text-align:center;cursor:pointer;background:var(--bg-dropzone);transition:all var(--transition-base);padding:40px 24px}.dropzone:hover,.dropzone.drag-over{border-color:var(--accent);background:var(--bg-dropzone-hover);box-shadow:var(--shadow-focus)}.dropzone.drag-over{border-style:solid}.dropzone:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.dropzone-icon{color:var(--accent-text);transition:transform var(--transition-base);margin-bottom:12px}.dropzone:hover .dropzone-icon{transform:translateY(-3px)}.dropzone-text{margin-bottom:2px;font-size:1.05rem;font-weight:700}.dropzone-subtext{color:var(--text-2);font-size:.9rem}.dropzone-hint{color:var(--text-3);margin-top:8px;font-size:.78rem}.settings-bar{z-index:1;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--shadow-xs);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px;padding:14px 20px;animation:.25s slideDown;display:flex;position:relative}@keyframes 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10px;font-family:inherit;font-size:.85rem;font-weight:600}.select:hover{border-color:var(--accent-border)}.select:focus{box-shadow:var(--shadow-focus);outline:none}.slider-wrapper{align-items:center;gap:8px;display:flex}.slider{appearance:none;background:var(--border);cursor:pointer;border-radius:2px;outline:none;width:110px;height:4px}.slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;width:16px;height:16px;transition:transform var(--transition-fast);border-radius:50%}.slider::-webkit-slider-thumb:hover{transform:scale(1.15)}.slider::-moz-range-thumb{background:var(--accent);cursor:pointer;border:none;border-radius:50%;width:16px;height:16px}.slider-value{color:var(--accent-text);min-width:34px;font-size:.8rem;font-weight:700}.settings-actions{gap:8px;display:flex}.btn{border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;border:none;justify-content:center;align-items:center;gap:7px;padding:9px 18px;font-family:inherit;font-size:.82rem;font-weight:700;display:inline-flex}.btn:active{transform:scale(.97)}.btn-primary{background:var(--lime);color:#1a1225}.btn-primary:hover{background:var(--lime-500);box-shadow:var(--shadow-sm)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-ghost{color:var(--text-2);background:0 0}.btn-ghost:hover{color:var(--text-1);background:var(--accent-subtle)}.btn-lg{border-radius:var(--radius-md);width:100%;padding:13px 28px;font-size:.9rem}.btn-sm{padding:5px 12px;font-size:.75rem}.overall-progress{z-index:1;margin-bottom:20px;animation:.25s slideDown;position:relative}.progress-bar-track{background:var(--border);border-radius:2px;height:4px;margin-bottom:6px;overflow:hidden}.progress-bar-fill{background:var(--lime);width:0%;height:100%;transition:width var(--transition-base);border-radius:2px}.progress-text{color:var(--text-2);text-align:center;font-size:.8rem}.file-grid{z-index:1;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-bottom:20px;display:grid;position:relative}.file-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-md);transition:all var(--transition-base);animation:.3s backwards cardIn;overflow:hidden}@keyframes cardIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.file-card:hover{box-shadow:var(--shadow-md);border-color:var(--accent-border);transform:translateY(-2px)}.file-card-preview{aspect-ratio:4/3;background:var(--bg-input);justify-content:center;align-items:center;width:100%;display:flex;position:relative;overflow:hidden}.file-card-preview img{object-fit:cover;width:100%;height:100%}.file-card-preview .placeholder-icon{color:var(--text-3)}.file-card-status{border-radius:var(--radius-full);background:var(--bg-surface);border:1px solid var(--border);width:26px;height:26px;box-shadow:var(--shadow-xs);justify-content:center;align-items:center;font-size:.75rem;display:flex;position:absolute;top:8px;right:8px}.status-pending{color:var(--text-3)}.status-converting{color:var(--accent-text)}.status-done{color:var(--success)}.status-error{color:var(--error)}.spinner{border:2px solid #0000;border-top-color:currentColor;border-radius:50%;width:14px;height:14px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.file-card-info{padding:10px 14px}.file-card-name{white-space:nowrap;text-overflow:ellipsis;margin-bottom:4px;font-size:.8rem;font-weight:700;overflow:hidden}.file-card-meta{justify-content:space-between;align-items:center;gap:6px;display:flex}.file-card-size{color:var(--text-3);font-size:.72rem}.file-card-size .converted-size{color:var(--success);font-weight:700}.file-card-actions{gap:4px;display:flex}.download-section{z-index:1;margin-bottom:28px;animation:.25s slideDown;position:relative}.main{flex:1;position:relative}.footer{border-top:1px solid var(--border);z-index:1;padding:20px 0;position:relative}.footer-inner{text-align:center;flex-direction:column;align-items:center;gap:6px;display:flex}.privacy-badge{background:var(--success-subtle);color:var(--success);border-radius:var(--radius-full);align-items:center;gap:6px;padding:4px 12px;font-size:.75rem;font-weight:600;display:inline-flex}.footer-text{color:var(--text-3);font-size:.75rem}@media (width<=640px){.hero{padding:32px 0 18px}.dropzone{padding:30px 14px}.settings-bar{flex-direction:column;align-items:stretch;padding:12px 14px}.settings-group{flex-direction:column;align-items:flex-start}.settings-actions{justify-content:stretch}.settings-actions .btn{flex:1}.file-grid{grid-template-columns:1fr}.slider{width:90px}}.toast{opacity:0;z-index:1000;border-radius:var(--radius-md);text-align:center;max-width:480px;box-shadow:var(--shadow-md);pointer-events:none;padding:10px 20px;font-size:.84rem;font-weight:600;transition:opacity .3s,transform .3s;position:fixed;bottom:24px;left:50%;transform:translate(-50%)translateY(20px)}.toast-visible{opacity:1;transform:translate(-50%)translateY(0)}.toast-warning{color:#92400e;background:#fef3c7;border:1px solid #fde68a}.toast-error{color:#991b1b;background:#fee2e2;border:1px solid #fecaca}[data-theme=dark] .toast-warning{color:#fde68a;background:#422006;border-color:#854d0e}[data-theme=dark] .toast-error{color:#fecaca;background:#450a0a;border-color:#991b1b}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}