html[data-theme=light]{--bg: #f6f8fc;--card: #ffffff;--elev: #ffffff;--text: #0f172a;--muted: #475569;--line: #e5e9f2;--brand: #3b82f6;--brand-strong: #1d4ed8;--accent: #10b981;--warning: #f59e0b;--danger: #ef4444}html[data-theme=dark]{--bg: #0e1220;--card: #151a2a;--elev: #141a26;--text: #e8eef7;--muted: #8a93a4;--line: #253048;--brand: #4f9cff;--brand-strong: #3a86ff;--accent: #22d3ee;--warning: #fbbf24;--danger: #f87171}:root{--space-xs: .5rem;--space-sm: 1rem;--space-md: 1.5rem;--space-lg: 2rem;--space-xl: 3rem;--space-2xl: 4rem;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--transition-fast: .15s ease-in-out;--transition-medium: .25s ease-in-out;--transition-slow: .35s ease-in-out}*{margin:0;padding:0;box-sizing:border-box}html{font-family:var(--font-family);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth}body{background-color:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}h1{font-size:2rem;font-weight:var(--font-weight-bold);line-height:1.2}h2{font-size:1.5rem;font-weight:var(--font-weight-semibold);line-height:1.3}h3{font-size:1.25rem;font-weight:var(--font-weight-semibold);line-height:1.4}p{line-height:1.6;color:var(--muted)}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-md)}@media (max-width: 768px){.container{padding:0 var(--space-sm)}}.header{background-color:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.header-content{display:flex;align-items:center;justify-content:space-between;padding:var(--space-sm) 0;gap:var(--space-md)}.logo{display:flex;align-items:center;gap:var(--space-xs);font-weight:var(--font-weight-bold);color:var(--text);text-decoration:none}.logo img{width:32px;height:32px;flex-shrink:0}.logo h1{font-size:1.25rem;margin:0}.privacy-badge{display:flex;align-items:center;gap:var(--space-xs);background-color:var(--accent);color:#fff;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-lg);font-size:.875rem;font-weight:var(--font-weight-medium)}.privacy-icon{font-size:.75rem}.mode-toggle{display:flex;align-items:center;gap:var(--space-xs)}.mode-label{font-size:.875rem;font-weight:var(--font-weight-medium);color:var(--muted)}.theme-toggle{display:flex;align-items:center;gap:var(--space-xs)}.btn-ghost{background:transparent;border:1px solid transparent;padding:var(--space-xs);border-radius:var(--radius-md);cursor:pointer;transition:var(--transition-medium);font-size:1.2rem}.btn-ghost:hover{background-color:var(--elev);border-color:var(--line)}.btn-ghost:focus-visible{outline:2px solid var(--brand);outline-offset:2px}.toggle-switch{position:relative;display:inline-block;width:48px;height:24px}.toggle-switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--line);transition:var(--transition-medium);border-radius:12px}.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;bottom:3px;background-color:#fff;transition:var(--transition-medium);border-radius:50%}input:checked+.slider{background-color:var(--brand)}input:checked+.slider:before{transform:translate(24px)}.main{flex:1;padding:var(--space-md) 0}.upload-section{margin-bottom:var(--space-lg)}.benefits-section{background:linear-gradient(135deg,#3b82f60d,#10b9810d);border:1px solid var(--line);border-radius:var(--radius-xl);padding:var(--space-2xl);margin-bottom:var(--space-xl);position:relative;overflow:hidden}.benefits-section:before{content:"";position:absolute;top:-50%;right:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(59,130,246,.1) 0%,transparent 70%);pointer-events:none}.benefits-header{text-align:center;margin-bottom:var(--space-2xl);position:relative;z-index:1}.benefits-header h2{font-size:2.5rem;font-weight:var(--font-weight-bold);background:linear-gradient(135deg,var(--brand),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-sm)}.benefits-header p{font-size:1.25rem;color:var(--muted);font-weight:var(--font-weight-medium)}.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:var(--space-lg);margin-bottom:var(--space-2xl);position:relative;z-index:1}.benefit-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-lg);text-align:center;transition:var(--transition-medium);position:relative;overflow:hidden;box-shadow:0 4px 12px #0000000d}.benefit-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--brand),var(--accent));transform:scaleX(0);transition:var(--transition-medium)}.benefit-card:hover{transform:translateY(-4px);box-shadow:0 12px 24px #0000001a;border-color:var(--brand)}.benefit-card:hover:before{transform:scaleX(1)}.benefit-icon{font-size:3rem;margin-bottom:var(--space-md);display:inline-block;animation:float 3s ease-in-out infinite}.benefit-card:nth-child(2n) .benefit-icon{animation-delay:-1s}.benefit-card:nth-child(3n) .benefit-icon{animation-delay:-2s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.benefit-card h3{font-size:1.25rem;font-weight:var(--font-weight-semibold);color:var(--text);margin-bottom:var(--space-sm)}.benefit-card p{color:var(--muted);line-height:1.6;font-size:.95rem}.stats-showcase{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-xl);position:relative;z-index:1;box-shadow:0 8px 24px #0000000f;max-width:600px;margin:0 auto}.stat-item{text-align:center;padding:var(--space-md);display:flex;flex-direction:column;align-items:center;justify-content:center}.stat-number{font-size:2.5rem;font-weight:var(--font-weight-bold);background:linear-gradient(135deg,var(--brand),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-xs);display:block;line-height:1.1;order:1}.stat-label{font-size:.875rem;color:var(--muted);font-weight:var(--font-weight-medium);text-transform:uppercase;letter-spacing:.5px;line-height:1.3;order:2;text-align:center;max-width:120px}.dropzone{border:2px dashed var(--line);border-radius:var(--radius-lg);padding:var(--space-2xl);text-align:center;background:linear-gradient(180deg,rgba(59,130,246,.03),transparent);cursor:pointer;transition:var(--transition-medium);position:relative;overflow:hidden;box-shadow:0 4px 12px #0000000d}.dropzone:hover,.dropzone:focus{border-color:var(--brand);background:linear-gradient(180deg,rgba(59,130,246,.07),transparent);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.dropzone.dragover{border-color:var(--brand);background:linear-gradient(180deg,rgba(59,130,246,.07),transparent);color:#fff;transform:scale(1.02)}.dropzone-content{pointer-events:none}.upload-icon{font-size:3rem;margin-bottom:var(--space-md);opacity:.8}.dropzone h2{margin-bottom:var(--space-sm)}.dropzone p{margin-bottom:var(--space-lg);color:var(--muted)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);border:none;border-radius:var(--radius-md);font-size:.875rem;font-weight:var(--font-weight-medium);text-decoration:none;cursor:pointer;transition:var(--transition-medium);pointer-events:auto;white-space:nowrap}.btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}.btn-primary{background-color:var(--brand);color:#fff;border-color:var(--brand-strong);min-height:40px}.btn-primary:hover:not(:disabled){background-color:var(--brand-strong);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background-color:#fff;color:var(--text);border:1px solid var(--line);min-height:40px}.btn-secondary:hover:not(:disabled){background-color:var(--elev);border-color:var(--line);color:#000}.btn-secondary{color:#000}.btn-danger{background-color:var(--danger);color:#fff}.btn-danger:hover:not(:disabled){background-color:#dc2626}.btn-preset{background-color:var(--elev);color:var(--text);border:1px solid var(--line);padding:var(--space-sm) var(--space-md);font-size:.75rem;min-height:40px}.btn-preset:hover:not(:disabled){background-color:var(--brand);color:#fff;border-color:var(--brand)}.btn-small{padding:var(--space-xs) var(--space-sm);font-size:.75rem}.btn:disabled{opacity:.5;cursor:not-allowed}:focus-visible{outline:2px solid var(--brand);outline-offset:2px}#fileInput{display:none!important}.as-label{display:inline-flex;align-items:center;justify-content:center;cursor:pointer;-webkit-user-select:none;user-select:none}.controls{background-color:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-lg);margin-bottom:var(--space-lg);display:grid;gap:var(--space-md);grid-template-columns:repeat(auto-fit,minmax(200px,1fr));box-shadow:0 8px 24px #0206170f}.control-group{display:flex;flex-direction:column;gap:var(--space-xs)}.control-group label{font-size:.875rem;font-weight:var(--font-weight-medium);color:var(--text)}.control-group select,.control-group 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-1;display:flex;flex-wrap:wrap;gap:var(--space-xs)}.action-buttons{grid-column:1 / -1;display:flex;gap:var(--space-sm);flex-wrap:wrap;padding:var(--space-md);margin:var(--space-sm) 0}.progress-container{margin-bottom:var(--space-lg);background-color:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-md);box-shadow:0 8px 24px #0206170f}.progress-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-sm);font-size:.875rem;font-weight:var(--font-weight-medium)}#progressBar{width:100%;height:8px;border-radius:var(--radius-sm);border:none;background-color:var(--line)}#progressBar::-webkit-progress-bar{background-color:var(--line);border-radius:var(--radius-sm)}#progressBar::-webkit-progress-value{background-color:var(--brand);border-radius:var(--radius-sm);transition:var(--transition-medium)}#progressBar::-moz-progress-bar{background-color:var(--brand);border-radius:var(--radius-sm)}.images-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--space-md);margin-bottom:var(--space-lg)}.image-item{background-color:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-md);transition:var(--transition-medium);box-shadow:0 8px 24px #0206170f}.image-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg)}.image-preview{width:100%;height:200px;object-fit:cover;border-radius:var(--radius-md);margin-bottom:var(--space-sm);background-color:#f1f5f9}.image-info{margin-bottom:var(--space-md)}.image-name{font-weight:var(--font-weight-medium);margin-bottom:var(--space-xs);word-break:break-word}.image-stats{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-xs);font-size:14px;color:var(--muted)}.stat-item{display:flex;justify-content:space-between}.size-reduction{grid-column:1 / -1;text-align:center;padding:var(--space-xs);border-radius:var(--radius-sm);font-weight:var(--font-weight-medium)}.size-reduction.positive{background-color:#10b9811a;color:var(--accent)}.size-reduction.negative{background-color:#ef44441a;color:var(--danger)}.format-badge{display:inline-block;background-color:#3b82f61a;color:var(--brand);padding:2px 6px;border-radius:4px;font-size:10px;font-weight:600;text-transform:uppercase;margin-left:var(--space-xs)}.image-actions{display:flex;gap:var(--space-xs);flex-wrap:wrap}.error-state{border-color:var(--danger)}.error-message{color:var(--danger);font-size:.875rem;margin-bottom:var(--space-sm)}.modal{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#000c;z-index:1000;display:flex;align-items:center;justify-content:center;padding:var(--space-md)}.modal-content{background-color:var(--card);border-radius:var(--radius-lg);max-width:90vw;max-height:90vh;overflow:auto;border:1px solid var(--line)}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-md);border-bottom:1px solid var(--line)}.modal-close{background:none;border:none;font-size:1.5rem;cursor:pointer;color:var(--muted);transition:var(--transition-medium)}.modal-close:hover{color:var(--text)}.compare-container{padding:var(--space-md)}.compare-slider{position:relative;width:100%;max-width:800px;margin:0 auto var(--space-md);border-radius:var(--radius-md);overflow:hidden;background-color:var(--line)}.compare-before,.compare-after{position:relative;width:100%;height:400px}.compare-after{position:absolute;top:0;left:0;width:50%;overflow:hidden}.compare-before img,.compare-after img{width:100%;height:100%;object-fit:contain;display:block}.compare-after img{width:200%}.compare-label{position:absolute;top:var(--space-sm);left:var(--space-sm);background-color:#000000b3;color:#fff;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);font-size:.875rem;font-weight:var(--font-weight-medium)}.compare-handle{position:absolute;top:0;bottom:0;left:50%;width:4px;background-color:#fff;cursor:ew-resize;transform:translate(-2px);z-index:10}.compare-handle:before{content:"";position:absolute;top:50%;left:50%;width:32px;height:32px;background-color:#fff;border-radius:50%;transform:translate(-50%,-50%);box-shadow:var(--shadow-md)}.compare-handle:after{content:"⟷";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);color:var(--color-text-primary);font-weight:var(--font-weight-bold);z-index:1}.compare-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:var(--space-md);padding:var(--space-md);background-color:var(--elev);border-radius:var(--radius-md)}.stat{text-align:center}.stat-label{display:block;font-size:.875rem;color:var(--muted);margin-bottom:var(--space-xs)}.toast{position:fixed;bottom:var(--space-md);right:var(--space-md);background-color:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-md);box-shadow:var(--shadow-xl);z-index:1001;max-width:400px;animation:slideInUp var(--transition-medium)}.toast-content{display:flex;align-items:center;justify-content:space-between;gap:var(--space-sm)}@keyframes slideInUp{0%{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}.vitals-debug{position:fixed;bottom:var(--space-sm);left:var(--space-sm);background-color:#000c;color:#fff;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);font-size:.75rem;font-family:monospace;z-index:1002;display:flex;gap:var(--space-sm)}.footer{background-color:var(--card);border-top:1px solid var(--line);padding:var(--space-xl) 0;margin-top:auto}.footer-content{display:flex;flex-direction:column;gap:var(--space-md);text-align:center}.footer-links{display:flex;justify-content:center;gap:var(--space-md);flex-wrap:wrap}.footer-links a{color:var(--muted);text-decoration:none;font-size:.875rem;transition:var(--transition-medium)}.footer-links a:hover{color:var(--brand)}.footer-text{font-size:.875rem;color:var(--muted)}.footer-text p{margin-bottom:var(--space-xs)}.footer-text p:last-child{margin-bottom:0}@media (max-width: 1024px){.images-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.controls{grid-template-columns:1fr}}@media (max-width: 768px){.header-content{flex-wrap:wrap;justify-content:center;text-align:center;gap:var(--space-sm)}.privacy-badge{order:3;flex-basis:100%;justify-content:center}.mode-toggle{flex-direction:column;align-items:center}.benefits-section{padding:var(--space-lg);margin-bottom:var(--space-lg)}.benefits-header h2{font-size:2rem}.benefits-header p{font-size:1.1rem}.benefits-grid{grid-template-columns:1fr;gap:var(--space-md)}.benefit-card{padding:var(--space-md)}.benefit-icon{font-size:2.5rem}.stats-showcase{grid-template-columns:1fr;gap:var(--space-md);padding:var(--space-lg);max-width:none}.stat-number{font-size:2rem}.dropzone{padding:var(--space-lg)}.upload-icon{font-size:2rem}h1{font-size:1.5rem}.dropzone h2{font-size:1.25rem}.images-grid{grid-template-columns:1fr}.action-buttons{flex-direction:column}.presets{justify-content:center}.modal-content{margin:var(--space-md);max-width:calc(100vw - 2rem);max-height:calc(100vh - 2rem)}.compare-before,.compare-after{height:300px}.toast{right:var(--space-sm);left:var(--space-sm);bottom:var(--space-sm);max-width:none}.footer-links{flex-direction:column;gap:var(--space-sm)}}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media print{.toast,.vitals-debug,.modal{display:none!important}}@media (prefers-contrast: high){:root{--color-border: #ffffff;--color-border-light: #ffffff}}.loading{opacity:.6;pointer-events:none}.loading:after{content:"";position:absolute;top:50%;left:50%;width:20px;height:20px;margin:-10px 0 0 -10px;border:2px solid var(--line);border-top:2px solid var(--brand);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--elev)}::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--muted)}.faq-section{background:linear-gradient(135deg,#3b82f608,#10b98108);border:1px solid var(--line);border-radius:var(--radius-xl);padding:var(--space-2xl);margin:var(--space-2xl) 0;position:relative;overflow:hidden}.faq-section:before{content:"";position:absolute;top:-50%;left:-50%;width:100%;height:100%;background:radial-gradient(circle,rgba(16,185,129,.08) 0%,transparent 70%);pointer-events:none}.faq-header{text-align:center;margin-bottom:var(--space-2xl);position:relative;z-index:1}.faq-header h2{font-size:2.25rem;font-weight:var(--font-weight-bold);background:linear-gradient(135deg,var(--brand),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:var(--space-sm)}.faq-header p{font-size:1.125rem;color:var(--muted);font-weight:var(--font-weight-medium)}.faq-grid{display:grid;gap:var(--space-md);max-width:800px;margin:0 auto;position:relative;z-index:1}.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:var(--transition-medium);box-shadow:0 4px 12px #0000000d}.faq-item:hover{transform:translateY(-2px);box-shadow:0 8px 24px #0000001a;border-color:var(--brand)}.faq-question{width:100%;padding:var(--space-lg);background:none;border:none;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:var(--space-md);font-size:1rem;font-weight:var(--font-weight-semibold);color:var(--text);transition:var(--transition-medium)}.faq-question:hover{background-color:var(--elev)}.faq-question:focus-visible{outline:2px solid var(--brand);outline-offset:-2px}.faq-question span:first-child{flex:1;line-height:1.5}.faq-icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;background-color:var(--brand);color:#fff;border-radius:50%;font-size:1.2rem;font-weight:var(--font-weight-bold);transition:var(--transition-medium);flex-shrink:0}.faq-question[aria-expanded=true] .faq-icon{transform:rotate(45deg);background-color:var(--accent)}.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease-out,padding .3s ease-out}.faq-item.active .faq-answer{max-height:200px;padding:0 var(--space-lg) var(--space-lg)}.faq-answer p{color:var(--muted);line-height:1.6;margin:0}@media (max-width: 768px){.faq-section{padding:var(--space-lg);margin:var(--space-lg) 0}.faq-header h2{font-size:1.75rem}.faq-header p{font-size:1rem}.faq-question{padding:var(--space-md);font-size:.95rem}.faq-item.active .faq-answer{padding:0 var(--space-md) var(--space-md)}.faq-icon{width:20px;height:20px;font-size:1rem}}::selection{background-color:#3b82f633;color:var(--text)}