:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-card: #283446;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #3b82f6;--accent-hover: #2563eb;--border-color: #334155;--success: #22c55e;--error: #ef4444;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--font-family: "Inter", system-ui, -apple-system, sans-serif}[data-theme=light]{--bg-primary: #f8fafc;--bg-secondary: #ffffff;--bg-card: #f1f5f9;--text-primary: #0f172a;--text-secondary: #64748b;--accent-primary: #3b82f6;--accent-hover: #2563eb;--border-color: #e2e8f0}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.5;transition:background-color .3s ease,color .3s ease;min-height:100vh}button{cursor:pointer;border:none;background:none;font-family:inherit}a{text-decoration:none;color:inherit}.container{max-width:1200px;margin:0 auto;padding:0 1rem}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-center{justify-content:center}.justify-between{justify-content:space-between}.gap-2{gap:.5rem}.gap-4{gap:1rem}.w-full{width:100%}.btn{padding:.5rem 1rem;border-radius:var(--radius-md);font-weight:500;transition:all .2s}.btn-primary{background-color:var(--accent-primary);color:#fff}.btn-primary:hover{background-color:var(--accent-hover)}.btn-outline{border:1px solid var(--border-color);color:var(--text-primary)}.btn-outline:hover{background-color:var(--bg-secondary)}.card{background-color:var(--bg-secondary);border-radius:var(--radius-lg);padding:1.5rem;border:1px solid var(--border-color)}.uploader-container{border:2px dashed var(--border-color);border-radius:var(--radius-lg);padding:3rem 1.5rem;text-align:center;cursor:pointer;transition:all .2s ease;background-color:var(--bg-card);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}.uploader-container:hover{border-color:var(--accent-primary);background-color:var(--bg-secondary)}.uploader-container.dragging{border-color:var(--accent-primary);background-color:#3b82f61a;transform:scale(1.01)}.icon-wrapper{color:var(--accent-primary);background-color:#3b82f61a;padding:1rem;border-radius:50%;margin-bottom:.5rem}.uploader-title{font-size:1.25rem;font-weight:600;color:var(--text-primary)}.uploader-subtitle{font-size:.875rem;color:var(--text-secondary)}.settings-container{margin:1.5rem 0}.settings-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.settings-title{font-size:1.1rem;font-weight:600;color:var(--text-primary)}.quality-value{font-family:monospace;font-size:1.1rem;font-weight:700;color:var(--accent-primary);background-color:#3b82f61a;padding:.25rem .75rem;border-radius:var(--radius-sm)}.range-wrapper{margin-bottom:.75rem}.quality-slider{width:100%;height:6px;background:var(--bg-primary);border-radius:var(--radius-sm);outline:none;appearance:none;cursor:pointer}.quality-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--accent-primary);cursor:pointer;transition:background .15s ease-in-out;border:2px solid var(--bg-card)}.quality-slider::-moz-range-thumb{width:20px;height:20px;border:0;border-radius:50%;background:var(--accent-primary);cursor:pointer;transition:background .15s ease-in-out;border:2px solid var(--bg-card)}.range-labels{display:flex;justify-content:space-between;font-size:.8rem;color:var(--text-secondary);margin-top:.5rem}.settings-description{font-size:.875rem;color:var(--text-secondary)}.results-container{margin-top:2rem}.results-title{font-size:1.25rem;font-weight:600;margin-bottom:1rem;color:var(--text-primary)}.results-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}.result-card{padding:1rem;display:flex;flex-direction:column;gap:1rem}.result-preview{display:flex;align-items:center;gap:.75rem}.file-icon-wrapper{background-color:var(--bg-primary);padding:.75rem;border-radius:var(--radius-md);color:var(--text-secondary)}.file-info{flex:1;min-width:0}.file-name{font-size:.9rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:.25rem;color:var(--text-primary)}.file-status{display:flex}.status-badge{font-size:.75rem;padding:.125rem .5rem;border-radius:999px;display:flex;align-items:center;gap:.25rem}.status-badge.processing{background-color:#3b82f61a;color:var(--accent-primary)}.status-badge.success{background-color:#22c55e1a;color:var(--success)}.status-badge.error{background-color:#ef44441a;color:var(--error)}.metrics-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.5rem;background-color:var(--bg-primary);padding:.75rem;border-radius:var(--radius-md)}.metric{display:flex;flex-direction:column;align-items:center}.metric-label{font-size:.7rem;color:var(--text-secondary);text-transform:uppercase}.metric-value{font-size:.85rem;font-weight:600;color:var(--text-primary)}.metric.highlight .metric-value{color:var(--success)}.btn-sm{padding:.4rem .75rem;font-size:.875rem}.compression-info{font-size:.7rem;color:var(--text-secondary);text-align:center}.error-message{font-size:.8rem;color:var(--error);padding:.5rem;background-color:#ef44441a;border-radius:var(--radius-sm)}.animate-spin{animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.features-section{padding:4rem 0;margin-top:2rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.feature-card{background-color:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);border:1px solid var(--border-color);transition:transform .2s ease,border-color .2s ease;display:flex;flex-direction:column;align-items:center;text-align:center}.feature-card:hover{transform:translateY(-5px);border-color:var(--accent-primary)}.feature-icon{color:var(--accent-primary);background-color:#3b82f61a;padding:1rem;border-radius:50%;margin-bottom:1.5rem;display:inline-flex}.feature-title{font-size:1.25rem;font-weight:600;margin-bottom:.75rem;color:var(--text-primary)}.feature-description{font-size:.95rem;color:var(--text-secondary);line-height:1.6}.settings-panel{background:var(--surface-2);padding:1rem;border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}.setting-group{display:flex;align-items:center;gap:1rem}.setting-label{font-weight:500;color:var(--text-secondary);white-space:nowrap}.select-input{background:var(--surface-1);border:1px solid var(--border);color:var(--text-primary);padding:.5rem 1rem;border-radius:6px;font-size:.95rem;outline:none;cursor:pointer;min-width:150px}.select-input:focus{border-color:var(--primary)}.results-list{display:flex;flex-direction:column;gap:1rem;margin-top:1.5rem}.result-item{background:var(--surface-2);padding:1rem;border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:1rem}.file-info{display:flex;align-items:center;gap:1rem;flex:1;min-width:0}.file-details{display:flex;flex-direction:column;min-width:0}.filename{font-weight:500;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.filesize{font-size:.8rem;color:var(--text-secondary)}.svg-icon{background:#ff990026;color:#f90;width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:8px;font-weight:700;font-size:.8rem;flex-shrink:0}.conversion-arrow{color:var(--text-secondary);display:flex;align-items:center;justify-content:center;padding:0 1rem}.file-status{min-width:150px;display:flex;justify-content:flex-end}.success-actions{display:flex;align-items:center;gap:1rem}.status-badge{padding:.25rem .75rem;border-radius:999px;font-size:.85rem;font-weight:500}.status-badge.processing{background:#3b82f626;color:#3b82f6}.status-badge.error{background:#ef444426;color:#ef4444}.status-badge.success{background:#22c55e26;color:#22c55e}.btn-icon{background:var(--primary);color:#fff;border:none;width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .2s}.btn-icon:hover{filter:brightness(1.1)}@media(max-width:600px){.result-item{flex-direction:column;align-items:flex-start}.conversion-arrow{transform:rotate(90deg);margin:.5rem 0;align-self:center}.file-status{width:100%;justify-content:space-between}}.tabs-container{display:flex;justify-content:center;margin-bottom:2rem}.tabs-list{display:flex;background:var(--bg-secondary);padding:4px;border-radius:12px;gap:4px;border:1px solid var(--border-color)}.tab-button{padding:.75rem 2rem;border:none;background:transparent;color:var(--text-secondary);font-weight:500;font-size:.95rem;border-radius:8px;cursor:pointer;transition:all .2s ease;-webkit-user-select:none;user-select:none;position:relative;overflow:hidden}.tab-button:hover{color:var(--text-primary);background:var(--bg-card)}.tab-button:active{transform:scale(.98)}.tab-button.active{background:var(--accent-primary);color:#fff;box-shadow:0 2px 4px #0003;font-weight:600}.app-layout{min-height:100vh;display:flex;flex-direction:column}.navbar{border-bottom:1px solid var(--border-color);background-color:var(--bg-secondary);padding:1rem 0;position:sticky;top:0;z-index:10}.navbar-content{display:flex;justify-content:space-between;align-items:center}.logo h1{font-size:1.5rem;font-weight:700;color:var(--text-primary);letter-spacing:-.5px}.text-accent{color:var(--accent-primary)}.main-content{flex:1;padding-top:2rem;padding-bottom:2rem;width:100%}.controls-section{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:1.5rem}.actions-bar{animation:fadeIn .3s ease-in-out}.footer{padding:2rem 0;border-top:1px solid var(--border-color);background-color:var(--bg-secondary);color:var(--text-secondary);font-size:.875rem;margin-top:auto}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:640px){.bulk-actions{flex-direction:column;gap:1rem;width:100%}.bulk-actions button{width:100%;justify-content:center}}.hero-section{text-align:center;padding:3rem 1rem;max-width:800px;margin:0 auto}.hero-title{font-size:3.5rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem;letter-spacing:-1px}.text-gradient{background:linear-gradient(135deg,var(--accent-primary) 0%,#a855f7 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);max-width:600px;margin:0 auto;line-height:1.6}@media(max-width:768px){.hero-title{font-size:2.5rem}}