@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap";:root{--color-bg-primary: #0a0e1a;--color-bg-secondary: #111827;--color-bg-card: rgba(17, 24, 39, .6);--color-bg-card-hover: rgba(17, 24, 39, .85);--color-bg-glass: rgba(255, 255, 255, .03);--color-bg-glass-hover: rgba(255, 255, 255, .06);--color-border: rgba(255, 255, 255, .08);--color-border-hover: rgba(255, 255, 255, .15);--gradient-accent: linear-gradient(135deg, #7c3aed, #06b6d4);--gradient-accent-hover: linear-gradient(135deg, #8b5cf6, #22d3ee);--gradient-subtle: linear-gradient(135deg, rgba(124, 58, 237, .15), rgba(6, 182, 212, .15));--gradient-glow: linear-gradient(135deg, rgba(124, 58, 237, .3), rgba(6, 182, 212, .3));--color-text-primary: #f1f5f9;--color-text-secondary: #94a3b8;--color-text-muted: #64748b;--color-text-accent: #a78bfa;--color-text-accent-alt: #22d3ee;--color-success: #34d399;--color-success-bg: rgba(52, 211, 153, .1);--color-warning: #fbbf24;--color-error: #f87171;--color-info: #60a5fa;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 40px rgba(124, 58, 237, .15), 0 0 80px rgba(6, 182, 212, .08);--shadow-glow-strong: 0 0 60px rgba(124, 58, 237, .25), 0 0 120px rgba(6, 182, 212, .12);--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 4rem;--space-4xl: 6rem;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 2.5rem;--font-size-5xl: 3.5rem;--transition-fast: .15s ease;--transition-base: .25s ease;--transition-slow: .4s ease;--transition-spring: .5s cubic-bezier(.34, 1.56, .64, 1);--z-dropdown: 100;--z-sticky: 200;--z-modal: 300;--z-toast: 400;--max-width: 1200px;--nav-height: 64px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);background-color:var(--color-bg-primary);color:var(--color-text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden}body:before{content:"";position:fixed;top:-40%;left:-20%;width:80%;height:80%;background:radial-gradient(ellipse,rgba(124,58,237,.06) 0%,transparent 70%);pointer-events:none;z-index:-1}body:after{content:"";position:fixed;bottom:-40%;right:-20%;width:80%;height:80%;background:radial-gradient(ellipse,rgba(6,182,212,.05) 0%,transparent 70%);pointer-events:none;z-index:-1}a{color:var(--color-text-accent);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-text-accent-alt)}img{max-width:100%;height:auto;display:block}button{font-family:inherit;cursor:pointer;border:none;outline:none}input,select,textarea{font-family:inherit;border:none;outline:none}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.2;color:var(--color-text-primary)}h1{font-size:var(--font-size-4xl);font-weight:800;letter-spacing:-.03em}h2{font-size:var(--font-size-2xl);letter-spacing:-.02em}h3{font-size:var(--font-size-xl)}p{color:var(--color-text-secondary);line-height:1.7}.text-gradient{background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.text-muted{color:var(--color-text-muted)}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 var(--space-lg)}.section{padding:var(--space-4xl) 0}.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-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.gap-xl{gap:var(--space-xl)}.grid{display:grid}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--color-bg-primary)}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:#fff3}::selection{background:#7c3aed4d;color:var(--color-text-primary)}@media(max-width:768px){h1{font-size:var(--font-size-3xl)}h2{font-size:var(--font-size-xl)}.container{padding:0 var(--space-md)}}@media(max-width:480px){h1{font-size:var(--font-size-2xl)}html{font-size:14px}}.nav{position:sticky;top:0;z-index:var(--z-sticky);height:var(--nav-height);display:flex;align-items:center;justify-content:space-between;padding:0 var(--space-xl);background:#0a0e1acc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--color-border)}.nav-logo{display:flex;align-items:center;gap:var(--space-sm);font-size:var(--font-size-xl);font-weight:800;color:var(--color-text-primary);text-decoration:none}.nav-logo svg{width:28px;height:28px}.nav-links{display:flex;align-items:center;gap:var(--space-lg);list-style:none}.nav-links a{font-size:var(--font-size-sm);font-weight:500;color:var(--color-text-secondary);transition:color var(--transition-fast);position:relative}.nav-links a:hover,.nav-links a.active{color:var(--color-text-primary)}.nav-links a.active:after{content:"";position:absolute;bottom:-4px;left:0;width:100%;height:2px;background:var(--gradient-accent);border-radius:var(--radius-full)}.nav-mobile-toggle{display:none;background:none;color:var(--color-text-primary);font-size:var(--font-size-xl);padding:var(--space-sm)}@media(max-width:768px){.nav-links{display:none;position:absolute;top:var(--nav-height);left:0;right:0;flex-direction:column;background:#0a0e1af2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);padding:var(--space-lg);border-bottom:1px solid var(--color-border)}.nav-links.open{display:flex}.nav-mobile-toggle{display:block}}.footer{padding:var(--space-3xl) var(--space-xl) var(--space-xl);border-top:1px solid var(--color-border);background:#0a0e1a80}.footer-inner{max-width:var(--max-width);margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:var(--space-2xl)}.footer-brand p{margin-top:var(--space-sm);font-size:var(--font-size-sm);max-width:300px}.footer-col h4{font-size:var(--font-size-sm);font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted);margin-bottom:var(--space-md)}.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:var(--space-sm)}.footer-col a{font-size:var(--font-size-sm);color:var(--color-text-secondary)}.footer-col a:hover{color:var(--color-text-primary)}.footer-bottom{max-width:var(--max-width);margin:var(--space-2xl) auto 0;padding-top:var(--space-lg);border-top:1px solid var(--color-border);display:flex;justify-content:space-between;align-items:center;font-size:var(--font-size-xs);color:var(--color-text-muted)}.privacy-badge{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-sm);background:var(--color-success-bg);color:var(--color-success);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:500}@media(max-width:768px){.footer-inner{grid-template-columns:1fr 1fr}}@media(max-width:480px){.footer-inner{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:var(--space-sm);text-align:center}}.dropzone{position:relative;border:2px dashed var(--color-border);border-radius:var(--radius-xl);padding:var(--space-4xl) var(--space-xl);text-align:center;cursor:pointer;transition:all var(--transition-base);background:var(--color-bg-glass);overflow:hidden}.dropzone:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--gradient-subtle);opacity:0;transition:opacity var(--transition-base);border-radius:var(--radius-xl)}.dropzone:hover,.dropzone.drag-over,.dropzone:focus-within{border-color:#7c3aed80;box-shadow:var(--shadow-glow)}.dropzone:hover:before,.dropzone.drag-over:before,.dropzone:focus-within:before{opacity:1}.dropzone-icon{position:relative;z-index:1;width:64px;height:64px;margin:0 auto var(--space-lg);display:flex;align-items:center;justify-content:center;border-radius:var(--radius-lg);background:var(--gradient-subtle);color:var(--color-text-accent);font-size:var(--font-size-3xl);transition:transform var(--transition-spring)}.dropzone:hover .dropzone-icon,.dropzone.drag-over .dropzone-icon{transform:scale(1.1) translateY(-4px)}.dropzone-title{position:relative;z-index:1;font-size:var(--font-size-lg);font-weight:600;margin-bottom:var(--space-sm)}.dropzone-subtitle{position:relative;z-index:1;font-size:var(--font-size-sm);color:var(--color-text-muted)}.dropzone-subtitle span{color:var(--color-text-accent);font-weight:500}.dropzone input[type=file]{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer;z-index:2}.format-selector{display:flex;gap:var(--space-sm);flex-wrap:wrap}.format-pill{padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-full);font-size:var(--font-size-sm);font-weight:600;background:var(--color-bg-glass);color:var(--color-text-secondary);border:1px solid var(--color-border);transition:all var(--transition-base);cursor:pointer;text-transform:uppercase;letter-spacing:.03em}.format-pill:hover{background:var(--color-bg-glass-hover);border-color:var(--color-border-hover);color:var(--color-text-primary)}.format-pill.active{background:var(--gradient-accent);border-color:transparent;color:#fff;box-shadow:0 4px 16px #7c3aed4d}.slider-group{display:flex;flex-direction:column;gap:var(--space-sm)}.slider-header{display:flex;justify-content:space-between;align-items:center}.slider-label{font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-primary)}.slider-value{font-size:var(--font-size-sm);font-weight:700;color:var(--color-text-accent);min-width:40px;text-align:right}.slider-input{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:6px;border-radius:var(--radius-full);background:var(--color-bg-secondary);outline:none;transition:background var(--transition-fast)}.slider-input::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--gradient-accent);cursor:pointer;box-shadow:0 2px 8px #7c3aed66;transition:transform var(--transition-spring)}.slider-input::-webkit-slider-thumb:hover{transform:scale(1.2)}.slider-input::-moz-range-thumb{width:20px;height:20px;border-radius:50%;background:var(--gradient-accent);cursor:pointer;border:none;box-shadow:0 2px 8px #7c3aed66}.preview-panel{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg);padding:var(--space-lg);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.preview-box{display:flex;flex-direction:column;gap:var(--space-sm)}.preview-label{font-size:var(--font-size-xs);font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted)}.preview-image-container{position:relative;width:100%;aspect-ratio:16/10;border-radius:var(--radius-md);overflow:hidden;background:var(--color-bg-primary);display:flex;align-items:center;justify-content:center;border:1px solid var(--color-border)}.preview-image-container img{max-width:100%;max-height:100%;object-fit:contain}.preview-placeholder{color:var(--color-text-muted);font-size:var(--font-size-sm)}.preview-info{display:flex;gap:var(--space-md);font-size:var(--font-size-xs);color:var(--color-text-muted)}.preview-info .size-badge{padding:2px 8px;border-radius:var(--radius-full);background:var(--color-bg-glass);font-weight:600}.preview-info .size-badge.reduced{background:var(--color-success-bg);color:var(--color-success)}@media(max-width:600px){.preview-panel{grid-template-columns:1fr}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-md) var(--space-xl);font-size:var(--font-size-base);font-weight:600;border-radius:var(--radius-md);transition:all var(--transition-base);cursor:pointer;border:none;text-decoration:none}.btn-primary{background:var(--gradient-accent);color:#fff;box-shadow:0 4px 16px #7c3aed4d}.btn-primary:hover{background:var(--gradient-accent-hover);box-shadow:0 6px 24px #7c3aed66;transform:translateY(-2px)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}.btn-secondary{background:var(--color-bg-glass);color:var(--color-text-secondary);border:1px solid var(--color-border)}.btn-secondary:hover{background:var(--color-bg-glass-hover);border-color:var(--color-border-hover);color:var(--color-text-primary)}.btn-lg{padding:var(--space-lg) var(--space-2xl);font-size:var(--font-size-lg);border-radius:var(--radius-lg)}.btn-icon{font-size:var(--font-size-xl)}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-lg)}.tool-card{position:relative;display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-xl);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:all var(--transition-base);text-decoration:none;color:inherit;overflow:hidden}.tool-card:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:var(--gradient-subtle);opacity:0;transition:opacity var(--transition-base)}.tool-card:hover{border-color:var(--color-border-hover);box-shadow:var(--shadow-glow);transform:translateY(-4px)}.tool-card:hover:before{opacity:1}.tool-card-icon{position:relative;z-index:1;width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);background:var(--gradient-subtle);font-size:var(--font-size-2xl)}.tool-card-title{position:relative;z-index:1;font-size:var(--font-size-lg);font-weight:700;color:var(--color-text-primary)}.tool-card-desc{position:relative;z-index:1;font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.5}.tool-card-arrow{position:relative;z-index:1;margin-top:auto;display:flex;align-items:center;gap:var(--space-xs);font-size:var(--font-size-sm);font-weight:600;color:var(--color-text-accent);transition:gap var(--transition-base)}.tool-card:hover .tool-card-arrow{gap:var(--space-sm)}.glass-card{background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);padding:var(--space-xl)}.faq-section{max-width:800px;margin:0 auto}.faq-item{border-bottom:1px solid var(--color-border)}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:var(--space-lg) 0;background:none;color:var(--color-text-primary);font-size:var(--font-size-base);font-weight:600;text-align:left;cursor:pointer;transition:color var(--transition-fast)}.faq-question:hover{color:var(--color-text-accent)}.faq-chevron{font-size:var(--font-size-sm);color:var(--color-text-muted);transition:transform var(--transition-base)}.faq-item.open .faq-chevron{transform:rotate(180deg)}.faq-answer{max-height:0;overflow:hidden;transition:max-height var(--transition-slow),padding var(--transition-slow)}.faq-item.open .faq-answer{max-height:300px;padding-bottom:var(--space-lg)}.faq-answer p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.7}.related-tools{display:flex;gap:var(--space-md);flex-wrap:wrap}.related-tool-link{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--color-bg-glass);border:1px solid var(--color-border);border-radius:var(--radius-full);font-size:var(--font-size-sm);color:var(--color-text-secondary);transition:all var(--transition-base)}.related-tool-link:hover{background:var(--color-bg-glass-hover);border-color:var(--color-border-hover);color:var(--color-text-primary)}.ad-slot{display:none;width:100%;max-width:728px;margin:var(--space-xl) auto;min-height:90px;align-items:center;justify-content:center;background:var(--color-bg-glass);border:1px dashed var(--color-border);border-radius:var(--radius-md);color:var(--color-text-muted);font-size:var(--font-size-xs)}.processing-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:var(--z-modal);background:#0a0e1ad9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);align-items:center;justify-content:center;flex-direction:column;gap:var(--space-lg)}.processing-overlay.active{display:flex}.spinner{width:48px;height:48px;border:3px solid var(--color-border);border-top-color:#7c3aed;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.processing-text{font-size:var(--font-size-lg);font-weight:600;color:var(--color-text-primary)}.toast{position:fixed;bottom:var(--space-xl);right:var(--space-xl);z-index:var(--z-toast);padding:var(--space-md) var(--space-lg);background:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-md);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);color:var(--color-text-primary);font-size:var(--font-size-sm);font-weight:500;box-shadow:var(--shadow-lg);transform:translateY(100px);opacity:0;transition:all var(--transition-base)}.toast.show{transform:translateY(0);opacity:1}.toast.success{border-color:#34d3994d}.stats-bar{display:flex;justify-content:center;gap:var(--space-3xl);padding:var(--space-xl) 0}.stat-item{text-align:center}.stat-value{font-size:var(--font-size-3xl);font-weight:800;background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.stat-label{font-size:var(--font-size-xs);color:var(--color-text-muted);text-transform:uppercase;letter-spacing:.05em;margin-top:var(--space-xs)}@media(max-width:480px){.stats-bar{gap:var(--space-xl)}.stat-value{font-size:var(--font-size-2xl)}}.cookie-banner{position:fixed;bottom:var(--space-lg);left:50%;transform:translate(-50%,50px);width:90%;max-width:650px;background:#111827f2;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-md) var(--space-lg);z-index:var(--z-toast);box-shadow:var(--shadow-lg),var(--shadow-glow);opacity:0;pointer-events:none;transition:opacity var(--transition-slow),transform var(--transition-slow)}.cookie-banner.active{transform:translate(-50%);opacity:1;pointer-events:all}.cookie-banner-content{display:flex;align-items:center;justify-content:space-between;gap:var(--space-lg)}.cookie-banner-text{display:flex;align-items:flex-start;gap:var(--space-sm);text-align:left}.cookie-banner-text span{font-size:1.3rem;line-height:1}.cookie-banner-text p{font-size:var(--font-size-sm);color:var(--color-text-secondary);line-height:1.5;margin:0}.cookie-policy-link{color:var(--color-text-accent);text-decoration:underline}.cookie-policy-link:hover{color:var(--color-text-primary)}.cookie-banner-actions{display:flex;gap:var(--space-sm);flex-shrink:0}@media(max-width:640px){.cookie-banner-content{flex-direction:column;align-items:stretch;gap:var(--space-md)}.cookie-banner-actions{justify-content:flex-end}}.hero{text-align:center;padding:var(--space-4xl) 0 var(--space-2xl)}.hero h1{margin-bottom:var(--space-lg)}.hero-subtitle{font-size:var(--font-size-lg);color:var(--color-text-secondary);max-width:600px;margin:0 auto var(--space-2xl)}.hero-badge{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-xs) var(--space-md);background:var(--gradient-subtle);border:1px solid rgba(124,58,237,.2);border-radius:var(--radius-full);font-size:var(--font-size-xs);font-weight:600;color:var(--color-text-accent);margin-bottom:var(--space-xl)}.tool-page{padding:var(--space-2xl) 0}.tool-header{text-align:center;margin-bottom:var(--space-2xl)}.tool-header h1{margin-bottom:var(--space-md)}.tool-header p{max-width:600px;margin:0 auto;font-size:var(--font-size-lg)}.tool-body{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:var(--space-xl)}.tool-controls{display:flex;flex-wrap:wrap;align-items:center;gap:var(--space-lg)}.tool-actions{display:flex;justify-content:center;gap:var(--space-md);margin-top:var(--space-md)}.steps-section{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);padding:var(--space-2xl) 0}.step-card{text-align:center;padding:var(--space-xl)}.step-number{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:var(--gradient-accent);color:#fff;font-size:var(--font-size-base);font-weight:800;margin-bottom:var(--space-md)}.step-card h3{margin-bottom:var(--space-sm);font-size:var(--font-size-base)}.step-card p{font-size:var(--font-size-sm)}@media(max-width:600px){.steps-section{grid-template-columns:1fr}}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--space-lg)}.feature-item{display:flex;gap:var(--space-md);padding:var(--space-lg);background:var(--color-bg-glass);border:1px solid var(--color-border);border-radius:var(--radius-md)}.feature-icon{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:var(--gradient-subtle);font-size:var(--font-size-xl)}.feature-text h3{font-size:var(--font-size-sm);font-weight:600;margin-bottom:var(--space-xs)}.feature-text p{font-size:var(--font-size-xs);color:var(--color-text-muted)}.dimension-inputs{display:flex;align-items:center;gap:var(--space-md)}.dimension-field{display:flex;flex-direction:column;gap:var(--space-xs)}.dimension-field label{font-size:var(--font-size-xs);font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--color-text-muted)}.dimension-field input{width:120px;padding:var(--space-sm) var(--space-md);background:var(--color-bg-secondary);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-primary);font-size:var(--font-size-base);font-weight:600;transition:border-color var(--transition-fast)}.dimension-field input:focus{border-color:#7c3aed80}.lock-ratio-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--color-bg-glass);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text-accent);font-size:var(--font-size-lg);cursor:pointer;transition:all var(--transition-fast);margin-top:var(--space-lg)}.lock-ratio-btn.locked{background:var(--gradient-subtle);border-color:#7c3aed4d}.lock-ratio-btn:hover{border-color:var(--color-border-hover)}