*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}:root{--bg-primary: #0a0a0f;--bg-secondary: #12121a;--bg-card: rgba(18, 18, 30, .7);--bg-card-hover: rgba(24, 24, 40, .8);--bg-input: rgba(255, 255, 255, .04);--bg-input-focus: rgba(255, 255, 255, .08);--border-subtle: rgba(255, 255, 255, .06);--border-light: rgba(255, 255, 255, .1);--border-accent: rgba(129, 140, 248, .3);--text-primary: #e8e8ed;--text-secondary: #9898a8;--text-muted: #5a5a6e;--text-accent: #a5b4fc;--accent-1: #818cf8;--accent-2: #c084fc;--accent-gradient: linear-gradient(135deg, #818cf8, #c084fc);--accent-glow: rgba(129, 140, 248, .15);--success: #34d399;--success-bg: rgba(52, 211, 153, .1);--warning: #fbbf24;--danger: #f87171;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--shadow-card: 0 4px 24px rgba(0, 0, 0, .3), 0 0 0 1px var(--border-subtle);--shadow-elevated: 0 8px 40px rgba(0, 0, 0, .5), 0 0 0 1px var(--border-subtle)}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}body:before{content:"";position:fixed;top:0;left:0;right:0;bottom:0;background:radial-gradient(ellipse 80% 60% at 20% 10%,rgba(129,140,248,.08) 0%,transparent 60%),radial-gradient(ellipse 60% 50% at 80% 90%,rgba(192,132,252,.06) 0%,transparent 60%);pointer-events:none;z-index:0}.app{position:relative;z-index:1;max-width:1100px;margin:0 auto;padding:var(--space-xl) var(--space-lg);min-height:100vh;display:flex;flex-direction:column}.header{text-align:center;padding:var(--space-2xl) 0 var(--space-xl)}.logo{display:flex;align-items:center;justify-content:center;gap:var(--space-sm);margin-bottom:var(--space-sm)}.logo-icon{width:36px;height:36px}.logo h1{font-size:1.75rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;letter-spacing:-.02em}.subtitle{color:var(--text-secondary);font-size:.95rem;font-weight:300}.card{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-xl);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);box-shadow:var(--shadow-card);transition:border-color var(--transition-normal),box-shadow 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.6rem;background:#fbbf2414;border-radius:var(--radius-sm);border-left:2px solid var(--warning);line-height:1.4}.slider:disabled{opacity:.3;cursor:not-allowed}.slider:disabled::-webkit-slider-thumb{cursor:not-allowed;box-shadow:none}.quality-badge.disabled{opacity:.3}.quality-badge{font-size:.85rem;font-weight:600;color:var(--accent-1);background:var(--accent-glow);padding:.15rem .6rem;border-radius:999px;font-variant-numeric:tabular-nums}.format-buttons{display:flex;gap:var(--space-sm)}.format-btn{flex:1;padding:.5rem .75rem;font-family:inherit;font-size:.8rem;font-weight:500;background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}.format-btn:hover{border-color:var(--border-light);color:var(--text-primary)}.format-btn.active{background:var(--accent-glow);border-color:var(--accent-1);color:var(--accent-1)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:.7rem 1.5rem;font-family:inherit;font-size:.9rem;font-weight:500;border:none;border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-fast);outline:none}.btn svg{width:18px;height:18px}.btn-primary{background:var(--accent-gradient);color:#fff;box-shadow:0 2px 12px #818cf84d}.btn-primary:hover{box-shadow:0 4px 20px #818cf880;transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-light)}.btn-secondary:hover{background:var(--bg-input-focus);border-color:var(--accent-1)}.btn-success{background:linear-gradient(135deg,#34d399,#10b981);color:#fff;box-shadow:0 2px 12px #34d3994d}.btn-success:hover{box-shadow:0 4px 20px #34d39980;transform:translateY(-1px)}.action-buttons{display:flex;gap:var(--space-sm)}.action-buttons .btn{flex:1}.preview-card{display:flex;flex-direction:column}.preview-container{flex:1;min-height:300px;background:var(--bg-input);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;overflow:hidden;position:relative}.preview-placeholder p{color:var(--text-muted);font-size:.85rem;text-align:center;padding:var(--space-lg)}.preview-canvas{max-width:100%;max-height:100%;object-fit:contain;border-radius:var(--radius-sm)}.result-info{display:flex;gap:var(--space-md);margin-top:var(--space-md);padding:var(--space-md);background:var(--bg-input);border-radius:var(--radius-sm)}.result-item{flex:1;display:flex;flex-direction:column;gap:2px}.result-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}.result-value{font-size:.85rem;font-weight:600;color:var(--text-primary);font-variant-numeric:tabular-nums}.result-value.savings{color:var(--success)}.filename-row{margin-top:var(--space-sm)}.filename-input{width:100%;background:var(--bg-input);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);padding:.5rem 3rem .5rem .75rem;color:var(--text-primary);font-family:inherit;font-size:.85rem;outline:none;transition:border-color var(--transition-fast)}.filename-input:focus{border-color:var(--accent-1)}.filename-ext{position:absolute;right:.75rem;font-size:.75rem;color:var(--text-muted);pointer-events:none}.footer{margin-top:auto;padding:var(--space-2xl) 0 var(--space-md);text-align:center}.footer p{font-size:.78rem;color:var(--text-muted)}.btn-primary.processing{pointer-events:none;opacity:.8}.btn-primary.processing svg{animation:spin .8s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.editor-section{animation:fadeIn .4s ease}@media(max-width:840px){.editor-section{grid-template-columns:1fr}.app{padding:var(--space-md)}.header{padding:var(--space-lg) 0 var(--space-md)}}@media(max-width:480px){.dimension-inputs{flex-direction:column;align-items:stretch}.lock-btn{align-self:center;transform:rotate(90deg)}.action-buttons,.result-info{flex-direction:column}}