:root{--bg-color: #f4f8fb;--bg-secondary: #e7f1f6;--bg-card: #ffffff;--text-color: #102a43;--text-secondary: #5c7088;--text-muted: #8a9bb0;--border-color: #d1e3f0;--accent-primary: #005f99;--accent-secondary: #00a8cc;--accent-tertiary: #14d1c5;--accent-success: #29b37b;--success: #29b37b;--error: #ef476f;--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(255, 255, 255, .4);--gradient-primary: linear-gradient(135deg, #005f99, #00a8cc);--gradient-secondary: linear-gradient(135deg, #00a8cc, #14d1c5);--gradient-tertiary: linear-gradient(135deg, #005f99, #14d1c5);--success-color: #29b37b;--button-text: #ffffff;--shadow-sm: 0 1px 4px rgba(0, 0, 0, .06);--shadow-md: 0 4px 10px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 30px rgba(0, 0, 0, .12);--shadow-xl: 0 20px 45px rgba(0, 95, 153, .18);--shadow-2xl: 0 25px 60px rgba(0, 95, 153, .25)}.app{min-height:100vh;background:transparent;color:var(--text-color)}.app.dark-mode{--bg-color: #050b14;--bg-secondary: #07101d;--bg-card: #0d1928;--text-color: #f5f7fa;--text-secondary: #a8b3c6;--text-muted: #7c8696;--border-color: #182636;--accent-primary: #00a8cc;--accent-secondary: #14d1c5;--accent-tertiary: #4dd3ff;--accent-success: #33e0a0;--success: #33e0a0;--error: #ff5c8a;--glass-bg: rgba(7, 17, 32, .9);--glass-border: rgba(95, 184, 255, .3);--shadow-xl: 0 20px 50px rgba(0, 0, 0, .7)}.ocean-grid{position:fixed;inset:0;z-index:-1;background:radial-gradient(circle at 0 0,rgba(0,168,204,.18),transparent 55%),radial-gradient(circle at 100% 0,rgba(20,209,197,.2),transparent 55%),radial-gradient(circle at 0 100%,rgba(0,95,153,.22),transparent 55%),radial-gradient(circle at 100% 100%,rgba(0,52,89,.3),transparent 55%),linear-gradient(#ffffff08,#ffffff08);pointer-events:none}.ocean-grid:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:80px 80px;mix-blend-mode:soft-light;opacity:.7;animation:gridDrift 40s linear infinite}.ocean-grid:after{content:"";position:absolute;inset:-50%;background-image:radial-gradient(circle,rgba(20,209,197,.45) 1px,transparent 1px);background-size:120px 120px;opacity:.22;animation:particlesDrift 60s linear infinite}@keyframes gridDrift{0%{transform:translateZ(0)}to{transform:translate3d(40px,40px,0)}}@keyframes particlesDrift{0%{transform:translateZ(0) rotate(0)}to{transform:translate3d(-60px,-40px,0) rotate(360deg)}}.app-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:0 0 20px 20px;box-shadow:var(--shadow-lg);position:sticky;top:0;z-index:10}.header-nav{display:flex;gap:.5rem;background:var(--glass-bg);padding:.375rem;border-radius:16px;border:2px solid var(--glass-border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-md)}.nav-btn{padding:.6rem 1.1rem;background:transparent;border:1px solid transparent;border-radius:12px;color:var(--text-secondary);font-weight:600;font-size:.85rem;cursor:pointer;transition:all .3s ease;text-transform:uppercase;letter-spacing:.6px}.nav-btn:hover{background:var(--bg-secondary);color:var(--accent-primary)}.section{background:var(--bg-card);border-radius:20px;padding:2rem;margin-bottom:2rem;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border);box-shadow:var(--shadow-xl);animation:fadeIn .5s ease-out}.section-header h2{font-size:2rem;font-weight:700;margin-bottom:.5rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-header p{color:var(--text-secondary);font-size:1.05rem;margin:0}.upload-panel{background:var(--glass-bg);border:2px dashed var(--border-color);border-radius:16px;padding:1.5rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s ease;position:relative;overflow:hidden}.upload-panel:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.15),transparent);transition:left .6s}.upload-panel:hover{border-color:var(--accent-primary);transform:translateY(-4px);box-shadow:var(--shadow-lg)}.file-info{background:var(--bg-secondary);border-radius:12px;padding:1rem;border:1px solid var(--border-color);margin-top:1rem}.control-btn{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:1rem;border:none;border-radius:12px;cursor:pointer;font-weight:600;font-size:.9rem;min-width:120px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .25s ease,box-shadow .25s ease}.clear-btn{background:var(--bg-card);color:var(--text-color);border:1px solid var(--border-color)}.tab-btn{display:flex;align-items:center;gap:.5rem;flex:1;padding:.8rem 1rem;background:transparent;border:none;border-radius:12px;color:var(--text-secondary);cursor:pointer;transition:all .3s ease;font-weight:500;justify-content:center}.tab-btn:hover{background:var(--bg-secondary);color:var(--text-color)}.tab-btn.active{background:var(--gradient-secondary);color:#fff;border:1px solid rgba(20,209,197,.9);animation:neonPulse 2.2s infinite ease-in-out}.comparison-content{background:var(--bg-card);border-radius:16px;min-height:400px;border:1px solid var(--border-color);overflow:hidden}.raw-content{background-color:var(--bg-secondary);padding:1rem;border-radius:8px;border:1px solid var(--border-color);height:calc(100% - 3rem);overflow:auto;font-family:Courier New,monospace;font-size:.9rem;line-height:1.4;white-space:pre-wrap;word-wrap:break-word}.metadata-list{margin:0;padding:0}.metadata-list .metadata-item{display:grid;grid-template-columns:auto 1fr;gap:.5rem;margin-bottom:.5rem;padding:.5rem;background-color:var(--bg-secondary);border-radius:6px}@media(max-width:768px){.app-main{padding:1rem}.app-header{padding:1rem;flex-wrap:wrap;gap:1rem}.header-nav{justify-content:center;flex-wrap:wrap;width:100%;gap:.25rem}.nav-btn{padding:.4rem .7rem;font-size:.8rem}.comparison-tabs{flex-wrap:wrap}.tab-btn{flex:0 0 calc(50% - .25rem)}.upload-controls{flex-direction:row;gap:1rem}.control-btn{flex:1;min-width:auto}.diff-viewer,.raw-view{height:400px}.section{padding:1rem}.section-header h2{font-size:1.5rem}}:root{--bg-color: #f4f8fb;--bg-secondary: #e7f1f6;--bg-card: #ffffff;--text-color: #102a43;--text-secondary: #5c7088;--text-muted: #8a9bb0;--border-color: #d1e3f0;--accent-primary: #005f99;--accent-secondary: #00a8cc;--accent-tertiary: #14d1c5;--accent-success: #29b37b;--success: #29b37b;--error: #ef476f;--glass-bg: rgba(255, 255, 255, .75);--glass-border: rgba(255, 255, 255, .35);--gradient-primary: linear-gradient(135deg, #005f99, #00a8cc);--gradient-secondary: linear-gradient(135deg, #00a8cc, #14d1c5);--success-color: #29b37b;--button-text: #ffffff;--shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .08), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -2px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 95, 153, .18), 0 10px 10px -5px rgba(0, 95, 153, .12);--shadow-2xl: 0 25px 50px -12px rgba(0, 95, 153, .25)}body{margin:0;background:var(--bg-color);color:var(--text-color);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app{min-height:100vh;background:var(--bg-color);color:var(--text-color)}.app.dark-mode{--bg-color: #050b14;--bg-secondary: #07101d;--bg-card: #0d1928;--text-color: #f5f7fa;--text-secondary: #a8b3c6;--text-muted: #7c8696;--border-color: #182636;--accent-primary: #00a8cc;--accent-secondary: #14d1c5;--accent-tertiary: #4dd3ff;--accent-success: #33e0a0;--success: #33e0a0;--error: #ff5c8a;--glass-bg: rgba(7, 17, 32, .9);--glass-border: rgba(95, 184, 255, .3)}.app-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;background:var(--glass-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:0 0 20px 20px;box-shadow:var(--shadow-lg);position:sticky;top:0;z-index:100}.header-brand{display:flex;align-items:center;gap:1.25rem}.logo{width:48px;height:48px;background:var(--gradient-primary);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff;box-shadow:var(--shadow-md)}.logo-image{width:100%;height:100%;object-fit:contain;border-radius:12px}.brand-info h1{margin:0;color:var(--accent-primary);font-size:1.75rem;font-weight:700;letter-spacing:-.25px}.tagline{font-size:.875rem;color:var(--text-secondary);font-weight:500;letter-spacing:.5px}.header-brand-credit{display:block;font-size:.6rem;color:var(--text-muted);font-weight:500;margin-top:.2rem;font-style:italic}.header-nav{display:flex;gap:.25rem;background:var(--glass-bg);padding:.375rem;border-radius:16px;border:2px solid var(--glass-border);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);box-shadow:var(--shadow-md)}.nav-btn{padding:.875rem 1.75rem;background:transparent;border:none;border-radius:12px;color:var(--text-secondary);font-weight:600;font-size:.9rem;cursor:pointer;transition:all .4s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;text-transform:uppercase;letter-spacing:.5px;text-decoration:none}.nav-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);transition:left .6s}.nav-btn:hover:before{left:100%}.nav-btn:hover{background:var(--glass-bg);color:var(--text-color);transform:translateY(-2px);box-shadow:var(--shadow-md)}.nav-btn.active{background:var(--accent-primary);color:#fff;box-shadow:var(--shadow-md);font-weight:600}.theme-toggle{width:44px;height:44px;background:var(--bg-color);border:1px solid var(--border-color);border-radius:12px;cursor:pointer;font-size:1.2rem;transition:all .3s ease;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-sm)}.theme-toggle:hover{background:var(--accent-primary);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md)}.app-main{padding:2rem;max-width:1400px;margin:0 auto;min-height:calc(100vh - 200px)}.section{background:var(--bg-card);border-radius:20px;padding:2rem;margin-bottom:2rem;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);box-shadow:var(--shadow-xl);transition:all .3s cubic-bezier(.4,0,.2,1);animation:fadeIn .5s ease-out}.section:hover{transform:translateY(-2px);box-shadow:var(--shadow-xl),0 0 40px #005f991f}.section-header{text-align:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border-color)}.section-header h2{font-size:2rem;font-weight:700;margin-bottom:.5rem;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.section-header p{color:var(--text-secondary);font-size:1.1rem;margin:0}.upload-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:2rem;margin-bottom:2rem;align-items:start}.upload-panel{background:var(--glass-bg);border:2px dashed var(--border-color);border-radius:16px;padding:1.5rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.upload-panel:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s}.upload-panel:hover:before{left:100%}.upload-panel:hover{border-color:var(--accent-primary);transform:translateY(-4px);box-shadow:var(--shadow-lg),0 0 30px #00a8cc40}.upload-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.upload-header h3{margin:0;color:var(--text-color);font-weight:600;font-size:1.1rem}.status-indicator{display:inline-flex;align-items:center;gap:.5rem;padding:.375rem .75rem;border-radius:20px;font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;min-width:70px;text-align:center}.status-indicator.success{background:#29b37b1a;color:var(--accent-success);border:1px solid var(--accent-success)}.status-indicator.warning{background:#14d1c51a;color:var(--accent-tertiary);border:1px solid var(--accent-tertiary)}.status-indicator.error{background:#ef476f1a;color:var(--error);border:1px solid var(--error)}.upload-area{position:relative;margin-bottom:1rem}.file-input{position:absolute;opacity:0;width:100%;height:100%;cursor:pointer;z-index:2}.file-label{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:120px;background:var(--bg-color);border:2px dashed var(--border-color);border-radius:12px;cursor:pointer;transition:all .3s ease;padding:1rem}.file-label:hover{background:var(--bg-secondary);border-color:var(--accent-primary)}.upload-icon{font-size:2rem;margin-bottom:.5rem;opacity:.6}.file-info{background:var(--bg-secondary);border-radius:12px;padding:1rem;border:1px solid var(--border-color)}.info-item{display:flex;justify-content:space-between;margin-bottom:.5rem;padding:.25rem 0}.info-item:last-child{margin-bottom:0}.info-label{font-weight:600;color:var(--text-color)}.info-value{color:var(--text-secondary);word-break:break-all;font-weight:500;background:var(--glass-bg);padding:.25rem .5rem;border-radius:6px;font-size:.875rem}.upload-controls{display:flex;flex-direction:column;gap:1rem;align-self:center;justify-self:center}.control-btn{display:flex;align-items:center;justify-content:center;gap:.5rem;padding:1rem;border:none;border-radius:12px;cursor:pointer;font-weight:600;font-size:.9rem;transition:all .25s ease,box-shadow .25s ease;min-width:120px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.swap-btn{background:var(--accent-tertiary);color:#fff;box-shadow:var(--shadow-md)}.swap-btn:hover:not(:disabled),.clear-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 0 0 1px #14d1c566,0 0 18px #14d1c573,var(--shadow-md)}.clear-btn{background:var(--glass-bg);color:var(--text-color);border:1px solid var(--border-color)}.control-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.btn-icon{font-size:1rem}.next-step{text-align:center;margin-top:2rem;padding-top:1rem;border-top:1px solid var(--border-color)}.primary-btn{position:relative;display:inline-flex;align-items:center;gap:.75rem;background:var(--gradient-primary);color:#fff;border:none;padding:1rem 2rem;border-radius:12px;font-weight:600;font-size:1rem;cursor:pointer;transition:all .3s ease;box-shadow:var(--shadow-md)}.primary-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .6s}.primary-btn:hover:before{left:100%}.primary-btn:hover{transform:translateY(-4px) scale(1.02);box-shadow:var(--shadow-2xl),0 0 40px #00a8cc8c;background:var(--gradient-secondary)}.primary-btn:active{transform:translateY(-2px) scale(.98)}.comparison-tabs{display:flex;gap:.5rem;background:var(--glass-bg);padding:.75rem;border-radius:16px;margin-bottom:1.5rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--glass-border)}.tab-btn{display:flex;align-items:center;gap:.5rem;flex:1;padding:1rem;background:transparent;border:none;border-radius:12px;color:var(--text-secondary);cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);font-weight:500;justify-content:center;position:relative;overflow:hidden}.tab-btn:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.1),transparent);transition:left .5s}.tab-btn:hover:before{left:100%}.tab-btn:hover{background:var(--glass-bg);color:var(--text-color);transform:translateY(-1px)}@keyframes neonPulse{0%{box-shadow:0 0 #00a8cc99,0 0 18px #00a8cc99}50%{box-shadow:0 0 0 2px #14d1c5cc,0 0 26px #14d1c5e6}to{box-shadow:0 0 #00a8cc99,0 0 18px #00a8cc99}}.tab-btn.active{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));color:#fff;animation:neonPulse 2.2s infinite ease-in-out;transform:translateY(-2px)}.tab-icon{font-size:1.1rem}.comparison-content{background:var(--bg-color);border-radius:16px;min-height:500px;border:1px solid var(--border-color);overflow:hidden}.comparison-settings{display:flex;flex-wrap:wrap;gap:2rem;padding:1rem;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color);align-items:center}.settings-group{display:flex;align-items:center;gap:1rem}.settings-group label{font-weight:500;color:var(--text-color);white-space:nowrap}.comparison-select{padding:.75rem 1rem;border:2px solid var(--border-color);border-radius:12px;background-color:var(--bg-color);color:var(--text-color);font-size:.95rem;font-weight:500;min-width:220px;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);box-shadow:var(--shadow-sm)}.comparison-select:focus{outline:none;border-color:var(--accent-primary);box-shadow:var(--shadow-md),0 0 0 4px #00a8cc2e;transform:translateY(-1px)}.comparison-select:hover{border-color:var(--accent-secondary);box-shadow:var(--shadow-md)}.checkbox-label{display:flex;align-items:center;gap:.75rem;cursor:pointer;font-size:.95rem;font-weight:500;padding:.5rem .75rem;border-radius:8px;transition:all .3s ease}.checkbox-label:hover{background:var(--glass-bg)}.checkbox-label input[type=checkbox]{width:18px;height:18px;accent-color:var(--accent-primary);cursor:pointer;border-radius:4px;transition:all .3s ease}.checkbox-label input[type=checkbox]:checked{transform:scale(1.1)}.download-controls{display:flex;gap:1rem;padding:1rem;background-color:var(--bg-secondary);border-bottom:1px solid var(--border-color)}.download-controls button{padding:.5rem 1rem;background-color:var(--success-color);color:var(--button-text);border:none;border-radius:4px;cursor:pointer;font-size:.9rem;transition:all .3s ease}.download-controls button:hover{opacity:.9;transform:translateY(-1px)}.tab-content{min-height:400px;background-color:var(--bg-color)}.loading{display:flex;justify-content:center;align-items:center;height:200px;font-size:1.2rem;color:var(--text-secondary)}.diff-viewer{height:600px;overflow:auto}.raw-view{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding:1rem;height:580px}.raw-panel h4{margin:0 0 1rem;color:var(--text-color);padding-bottom:.5rem;border-bottom:1px solid var(--border-color)}.raw-content{background-color:var(--bg-secondary);padding:1rem;border-radius:4px;border:1px solid var(--border-color);height:calc(100% - 3rem);overflow:auto;font-family:Courier New,monospace;font-size:.9rem;line-height:1.4;white-space:pre-wrap;word-wrap:break-word}.metadata-view{display:grid;grid-template-columns:1fr 1fr;gap:2rem;padding:1rem}.metadata-panel h4{margin:0 0 1rem;color:var(--text-color);padding-bottom:.5rem;border-bottom:1px solid var(--border-color)}.metadata-list div{display:grid;grid-template-columns:auto 1fr;gap:.5rem;margin-bottom:.5rem;padding:.5rem;background-color:var(--bg-secondary);border-radius:4px}.metadata-list dt{font-weight:700;color:var(--text-color)}.metadata-list dd{margin:0;color:var(--text-secondary);word-break:break-all}.metadata-item{border-left:3px solid transparent!important}.metadata-item:hover{border-left-color:var(--accent-tertiary)!important;background:var(--bg-secondary)!important}.content-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;padding:2rem;margin-bottom:2rem;line-height:1.6}.content-card h3{color:var(--accent-primary);margin-top:2rem;margin-bottom:1rem}.content-card h3:first-child{margin-top:0}.content-card ul{margin:1rem 0;padding-left:1.5rem}.content-card li{margin-bottom:.5rem}.content-card a{color:var(--accent-primary);text-decoration:none}.content-card a:hover{text-decoration:underline}.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2rem}.contact-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;padding:1.5rem;text-align:center}.contact-icon{font-size:2rem;margin-bottom:1rem}.contact-link{color:var(--accent-primary);text-decoration:none;font-weight:600}.contact-link:hover{text-decoration:underline}.business-info{background:var(--bg-secondary);border-radius:6px;padding:1rem;margin-top:1rem}.business-info p{margin:.5rem 0}.sitemap-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:2rem}.sitemap-category{background:var(--bg-card);border:1px solid var(--border-color);border-radius:8px;padding:1.5rem}.sitemap-category h3{color:var(--accent-primary);margin-bottom:1rem;margin-top:0}.sitemap-category li{margin-bottom:.5rem}.sitemap-category a{color:var(--text-color);text-decoration:none;padding:.25rem 0;display:block;border-radius:4px}.sitemap-category a:hover{color:var(--accent-primary);background:var(--bg-secondary);padding-left:.5rem}.section-header h2{color:var(--accent-primary);margin-bottom:.5rem}.section-header p{color:var(--text-secondary);font-size:1.1rem}.app-footer:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--accent-primary),var(--accent-tertiary),var(--accent-success))}.footer-section li:before{content:"▶"!important;font-size:.75rem!important}.footer-brand{margin-top:.5rem;font-size:.85rem;color:var(--text-muted)}.footer-brand strong{color:var(--accent-primary);font-weight:700}.dark-mode ::-webkit-scrollbar{width:8px;height:8px}.dark-mode ::-webkit-scrollbar-track{background:var(--bg-secondary)}.dark-mode ::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.dark-mode ::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes 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0;color:var(--text-secondary);line-height:1.5}.format-specifications{margin:2rem 0;padding:2rem;background:var(--glass-bg);border-radius:16px;border:1px solid var(--glass-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-md)}.format-specifications h3{margin:0 0 1.5rem;color:var(--accent-primary);font-size:1.3rem}.format-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem}.format-category{padding:1.5rem;background:var(--bg-card);border-radius:12px;border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.format-category h4{margin:0 0 1rem;color:var(--accent-primary);font-size:1.1rem;padding-bottom:.5rem;border-bottom:2px solid var(--accent-tertiary)}.format-details{display:flex;flex-direction:column;gap:1rem}.format-item{padding:1rem;background:var(--bg-secondary);border-radius:8px;border-left:3px solid var(--accent-secondary)}.format-item strong{display:block;color:var(--accent-primary);font-size:.95rem;margin-bottom:.5rem}.format-item span{color:var(--text-secondary);font-size:.9rem;line-height:1.5}.technical-notes{padding:1.5rem;background:linear-gradient(135deg,#14d1c50d,#00a8cc0d);border-radius:12px;border:1px solid rgba(20,209,197,.2)}.technical-notes h4{margin:0 0 1rem;color:var(--accent-primary);font-size:1.1rem}.notes-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.note-item{padding:1rem;background:var(--bg-card);border-radius:8px;box-shadow:var(--shadow-sm)}.note-item strong{display:block;color:var(--accent-primary);font-size:.9rem;margin-bottom:.5rem}.note-item span{color:var(--text-secondary);font-size:.85rem;line-height:1.4}.comparison-guide{margin:2rem 0;padding:2rem;background:var(--glass-bg);border-radius:16px;border:1px solid var(--glass-border);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:var(--shadow-md)}.comparison-guide h3{margin:0 0 1.5rem;color:var(--accent-primary);font-size:1.3rem}.guide-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-bottom:2rem}.guide-item{display:flex;gap:1rem;padding:1.5rem;background:var(--bg-card);border-radius:12px;box-shadow:var(--shadow-sm);border:1px solid var(--border-color)}.guide-icon{font-size:1.5rem;flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--bg-secondary)}.guide-item .guide-content h4{margin:0 0 .5rem;color:var(--accent-primary);font-size:1rem}.guide-item .guide-content p{margin:0;color:var(--text-secondary);font-size:.9rem;line-height:1.5}.comparison-tips{padding:1.5rem;background:linear-gradient(135deg,#005f9908,#00a8cc08);border-radius:12px;border:1px solid rgba(0,95,153,.1)}.comparison-tips h4{margin:0 0 1rem;color:var(--accent-primary);font-size:1.1rem}.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1rem}.tip-item{padding:1rem;background:var(--bg-card);border-radius:8px;border-left:3px solid var(--accent-tertiary);box-shadow:var(--shadow-sm)}.tip-item strong{display:block;color:var(--accent-primary);font-size:.9rem;margin-bottom:.5rem}.tip-item span{color:var(--text-secondary);font-size:.85rem;line-height:1.4}@media(max-width:768px){.format-specifications,.comparison-guide,.input-guide-section{margin:1rem 0;padding:1.5rem}.format-grid,.guide-grid,.notes-grid,.tips-grid,.guide-content{grid-template-columns:1fr;gap:1rem}.guide-item{flex-direction:column;text-align:center;gap:.5rem}.format-category,.guide-item{padding:1rem}}