:root{--bg:#fff;--bg-subtle:#f9fafb;--bg-muted:#f3f4f6;--bg-hero:#f9fafb;--bg-footer:#f9fafb;--border:#e5e7eb;--border-hover:#d1d5db;--text:#111827;--text-secondary:#6b7280;--text-muted:#9ca3af;--accent-green:#10b981;--accent-red:#ef4444;--accent-amber:#f59e0b;--accent-blue:#6366f1;--r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-2xl:24px;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 1px 3px #0000000d, 0 1px 2px #00000008;--shadow-md:0 4px 6px -1px #0000000f, 0 2px 4px #00000008;--shadow-lg:0 10px 25px -5px #00000012;--shadow-xl:0 20px 50px -12px #0000001a;--container:1080px;--nav-h:60px;--ease:cubic-bezier(.4, 0, .2, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 24px)}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;min-height:100dvh;font-family:Outfit,-apple-system,system-ui,sans-serif;overflow-x:hidden}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-3px)}}@keyframes pulse-dot{0%,to{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1.2)}}@keyframes pulse{0%,to{opacity:.6}50%{opacity:.25}}@keyframes check-draw{0%{stroke-dashoffset:24px;opacity:0}40%{opacity:1}to{stroke-dashoffset:0;opacity:1}}@keyframes shield-pulse{0%,to{opacity:.7;transform:scale(1)}50%{opacity:1;transform:scale(1.08)}}@keyframes arrow-flow{0%{opacity:0;transform:translate(-6px)}50%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(6px)}}.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 1.5rem}.section{padding:6rem 0}.section--muted{background:var(--bg-subtle)}.section-header{text-align:center;max-width:520px;margin-bottom:3.5rem;margin-left:auto;margin-right:auto}.section-header h2{letter-spacing:-.03em;color:var(--text);margin-bottom:.625rem;font-size:clamp(1.5rem,3vw,2rem);font-weight:700}.section-header p{color:var(--text-secondary);font-size:1rem;font-weight:400;line-height:1.6}.section-label{text-transform:uppercase;letter-spacing:.12em;color:var(--accent-blue);margin-bottom:.75rem;font-size:.75rem;font-weight:600;display:inline-block}.navbar{z-index:100;height:var(--nav-h);-webkit-backdrop-filter:blur(16px);transition:border-color .2s var(--ease);background:#ffffffe0;border-bottom:1px solid #0000;position:sticky;top:0}.navbar--scrolled{border-bottom-color:var(--border)}.navbar-inner{height:100%;max-width:var(--container);justify-content:space-between;align-items:center;margin:0 auto;padding:0 1.5rem;display:flex}.navbar-brand{color:var(--text);align-items:center;gap:10px;text-decoration:none;display:flex}.navbar-logo{flex-shrink:0;width:28px;height:28px}.navbar-name{letter-spacing:-.02em;font-size:1.0625rem;font-weight:700}.navbar-links{align-items:center;gap:2.25rem;list-style:none;display:flex}.navbar-links a{color:var(--text-secondary);font-size:1rem;font-weight:500;text-decoration:none;transition:color .15s}.navbar-links a:hover{color:var(--text)}.navbar-cta{background:var(--accent-blue);color:#fff;border-radius:var(--r-sm);cursor:pointer;transition:all .15s var(--ease);border:none;align-items:center;gap:6px;padding:8px 18px;font-family:Outfit,sans-serif;font-size:.9375rem;font-weight:600;text-decoration:none;display:inline-flex}.navbar-cta:hover{background:#4f46e5;transform:translateY(-1px);box-shadow:0 4px 12px #6366f140}.navbar-toggle{cursor:pointer;color:var(--text);background:0 0;border:none;padding:4px;display:none}@media (max-width:768px){.navbar-links{display:none}.navbar-toggle{display:flex}.navbar-cta{display:none}}@keyframes slideLeft{0%{opacity:0;transform:translate(20px)scale(.96)}to{opacity:1;transform:translate(0)scale(1)}}.mobile-menu-backdrop{display:none}@media (max-width:768px){.mobile-menu-backdrop{-webkit-backdrop-filter:blur(8px);z-index:98;background:#0006;width:100vw;height:100vh;animation:.2s ease-out fadeIn;display:block;position:fixed;top:0;left:0}}.mobile-menu{top:calc(var(--nav-h) + 12px);width:300px;height:auto;max-height:calc(100vh - var(--nav-h) - 24px);z-index:99;-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);background:#ffffffd9;border-radius:16px;padding:1.5rem;animation:.3s cubic-bezier(.16,1,.3,1) slideLeft;display:none;position:fixed;right:12px;overflow-y:auto;box-shadow:0 16px 40px #0000001f}@media (max-width:768px){.mobile-menu{display:block}}.mobile-menu-links{border:1px solid var(--border);border-radius:var(--r-md);flex-direction:column;gap:0;margin-bottom:1.25rem;list-style:none;display:flex;overflow:hidden}.mobile-menu-links li a{color:var(--text);border-bottom:1px solid var(--border);padding:.875rem 1.125rem;font-size:.9375rem;font-weight:500;text-decoration:none;transition:background .15s,color .15s;display:block}.mobile-menu-links li:last-child a{border-bottom:none}.mobile-menu-links li a:hover{background:var(--bg-subtle);color:var(--accent-blue)}.mobile-menu-auth{flex-direction:column;gap:.625rem;display:flex}.mobile-menu-email{color:var(--text-secondary);text-align:center;text-overflow:ellipsis;white-space:nowrap;padding:.5rem 0;font-size:.8125rem;font-weight:500;overflow:hidden}.mobile-menu-btn{border-radius:var(--r-sm);cursor:pointer;width:100%;transition:all .15s var(--ease);text-align:center;padding:.75rem 1rem;font-family:Outfit,sans-serif;font-size:.9375rem;font-weight:600}.mobile-menu-btn--outline{border:1.5px solid var(--border);color:var(--text);background:0 0}.mobile-menu-btn--outline:hover{border-color:var(--border-hover);background:var(--bg-subtle)}.mobile-menu-btn--primary{background:var(--accent-blue);color:#fff;border:none;box-shadow:0 4px 12px #6366f133}.mobile-menu-btn--primary:hover{background:#4f46e5}.hero{background:var(--bg-hero);text-align:center;border-bottom:1px solid var(--border);padding:6rem 0 5rem;position:relative}.hero-inner{max-width:var(--container);margin:0 auto;padding:0 1.5rem;position:relative}.hero-eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--accent-blue);background:#6366f10f;border:1px solid #6366f11f;border-radius:999px;align-items:center;gap:8px;margin-bottom:2rem;padding:6px 16px;font-size:.75rem;font-weight:600;display:inline-flex}.hero-eyebrow-dot{background:var(--accent-green);border-radius:50%;width:6px;height:6px}.hero h1{letter-spacing:-.04em;color:var(--text);max-width:720px;margin-bottom:1.5rem;margin-left:auto;margin-right:auto;font-size:clamp(2.5rem,5.5vw,4rem);font-weight:800;line-height:1.05}.hero-description{color:var(--text-secondary);max-width:520px;margin:0 auto 3rem;font-size:1.125rem;font-weight:400;line-height:1.65}.hero-metrics{justify-content:center;gap:4rem;margin-bottom:3.5rem;display:flex}.hero-metric{flex-direction:column;align-items:center;display:flex}.hero-metric-value{letter-spacing:-.02em;color:var(--text);font-size:1.75rem;font-weight:800}.hero-metric-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em;margin-top:3px;font-size:.75rem;font-weight:500}.hero-card{max-width:640px;animation:slideUp .5s var(--ease);margin:0 auto}@media (max-width:640px){.hero{padding:4rem 0 3rem}.hero-metrics{gap:2rem}}.main-card{background:var(--bg);border:1px solid var(--border);border-radius:var(--r-2xl);padding:1.75rem}@keyframes ring-pulse{0%,to{box-shadow:0 0 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var(--ease);background:linear-gradient(135deg,#6366f10f,#6366f11f);border:1px solid #6366f11a;border-radius:14px;justify-content:center;align-items:center;display:flex}.upload-zone:hover .upload-zone-pdf-badge{background:linear-gradient(135deg,#6366f11a,#6366f12e);transform:scale(1.04)}.upload-zone-arrow{background:var(--bg-muted);border:1px solid var(--border);width:28px;height:28px;color:var(--text-muted);border-radius:8px;justify-content:center;align-items:center;animation:3s ease-in-out infinite float;display:flex}.upload-zone-ring{border:2px solid var(--accent-blue);width:56px;height:56px;color:var(--accent-blue);background:#6366f114;border-radius:50%;justify-content:center;align-items:center;animation:1.5s ease-in-out infinite ring-pulse;display:flex}.upload-zone-text{margin-bottom:.75rem}.upload-zone-title{color:var(--text);letter-spacing:-.01em;margin-bottom:.25rem;font-size:1.0625rem;font-weight:700}.upload-zone-subtitle{color:var(--text-muted);font-size:.9375rem;line-height:1.45}.upload-zone-formats{background:var(--bg-subtle);border:1px solid var(--border);border-radius:8px;align-items:center;gap:6px;padding:5px 12px;display:inline-flex}.upload-zone-format-tag{color:var(--text-secondary);align-items:center;gap:3px;font-family:JetBrains Mono,monospace;font-size:.75rem;font-weight:600;display:inline-flex}.upload-zone-format-divider{color:var(--border-hover);font-size:.75rem}.upload-zone-format-limit{color:var(--text-muted);font-size:.75rem;font-weight:500}.upload-zone-error{color:#dc2626;background:#ef44440d;border:1px solid #ef44441f;border-radius:8px;align-items:center;gap:6px;padding:5px 12px;font-size:.875rem;font-weight:600;display:inline-flex}.upload-file-card{border-radius:var(--r-md);animation:slideUp .25s var(--ease);background:linear-gradient(135deg,#f0fdf4,#ecfdf5);border:1px solid #bbf7d0;align-items:center;gap:12px;padding:.875rem 1rem;display:flex}.upload-file-icon{width:40px;height:40px;color:var(--accent-green);background:#10b9811a;border:1px solid #10b98126;border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.upload-file-details{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.upload-file-name{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:.875rem;font-weight:600;overflow:hidden}.upload-file-meta{align-items:center;gap:6px;display:flex}.upload-file-size{color:var(--text-secondary);font-family:JetBrains Mono,monospace;font-size:.75rem}.upload-file-type{text-transform:uppercase;letter-spacing:.06em;color:#059669;background:#10b9811a;border-radius:3px;padding:1px 5px;font-size:.6875rem;font-weight:700}.upload-file-status{color:var(--accent-green);flex-shrink:0;align-items:center;display:flex}.upload-file-remove{cursor:pointer;color:var(--text-muted);background:0 0;border:none;border-radius:6px;flex-shrink:0;padding:6px;transition:all .15s}.upload-file-remove:hover{color:var(--accent-red);background:#ef44440f}.verify-btn{border-radius:var(--r-sm);cursor:pointer;width:100%;transition:all .2s var(--ease);border:none;justify-content:center;align-items:center;gap:8px;margin-top:1rem;padding:.8125rem 1.5rem;font-family:Outfit,sans-serif;font-size:.9375rem;font-weight:600;display:flex;position:relative;overflow:hidden}.verify-btn--active{background:var(--accent-blue);color:#fff;box-shadow:0 1px 3px #6366f126}.verify-btn--active:hover{background:#4f46e5;transform:translateY(-1px);box-shadow:0 6px 20px #6366f140}.verify-btn--active:active{transform:translateY(0);box-shadow:0 1px 3px #6366f126}.verify-btn--loading{background:var(--bg-subtle);color:var(--text-muted);cursor:not-allowed;border:1px solid var(--border)}.verify-btn--disabled{background:var(--bg-muted);color:var(--text-muted);border:1px solid var(--border);cursor:not-allowed}.verify-btn-icon{align-items:center;display:flex}.verify-btn-arrow{opacity:.7;font-size:1rem;transition:transform .15s,opacity .15s}.verify-btn--active:hover .verify-btn-arrow{opacity:1;transform:translate(2px)}.verify-btn-spinner{align-items:center;animation:.8s linear infinite spin;display:flex}.verify-btn-text{align-items:center;display:flex}.verify-btn-dots span{animation:1.4s ease-in-out infinite dot-bounce;display:inline-block}.verify-btn-dots span:nth-child(2){animation-delay:.2s}.verify-btn-dots span:nth-child(3){animation-delay:.4s}.result-banner{border-radius:var(--r-md);border:1px solid;padding:1.25rem;animation:.25s slideUp}.result-banner--success{background:#f0fdf4;border-color:#dcfce7}.result-banner--error{background:#fef2f2;border-color:#fecaca}.result-banner--warning{background:#fffbeb;border-color:#fde68a}.result-banner-header{align-items:flex-start;gap:10px;display:flex}.result-banner-icon{border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.result-banner--success .result-banner-icon{color:#16a34a;background:#dcfce7}.result-banner--error .result-banner-icon{color:#dc2626;background:#fee2e2}.result-banner--warning .result-banner-icon{color:#d97706;background:#fef3c7}.result-banner-title{margin-bottom:2px;font-size:1.0625rem;font-weight:700}.result-banner--success .result-banner-title{color:#15803d}.result-banner--error .result-banner-title{color:#b91c1c}.result-banner--warning .result-banner-title{color:#b45309}.result-banner-subtitle{color:var(--text-secondary);font-size:.9375rem;line-height:1.5}.signer-list{flex-direction:column;gap:4px;margin-top:.75rem;display:flex}.signer-item{background:var(--bg);border:1px solid var(--border);border-radius:6px;align-items:center;gap:8px;padding:8px 10px;display:flex}.signer-status-dot{border-radius:50%;flex-shrink:0;width:6px;height:6px}.signer-status-dot--valid{background:var(--accent-green)}.signer-status-dot--invalid{background:var(--accent-red)}.signer-status-dot--unknown{background:var(--accent-amber)}.signer-info{flex:1;min-width:0}.signer-cn{color:var(--text);white-space:nowrap;text-overflow:ellipsis;font-size:.875rem;font-weight:600;overflow:hidden}.signer-meta{color:var(--text-muted);font-family:JetBrains Mono,monospace;font-size:.75rem}.signer-badge{letter-spacing:.04em;text-transform:uppercase;border-radius:4px;flex-shrink:0;padding:2px 6px;font-size:.6875rem;font-weight:700}.signer-badge--valid{color:#15803d;background:#dcfce7}.signer-badge--invalid{color:#b91c1c;background:#fee2e2}.signer-badge--unknown{color:#92400e;background:#fef3c7}.download-btn{border-radius:var(--r-sm);background:var(--accent-green);color:#fff;cursor:pointer;border:none;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:.75rem;padding:.75rem;font-family:Outfit,sans-serif;font-size:.9375rem;font-weight:600;text-decoration:none;transition:all .15s;display:flex}.download-btn:hover{background:#059669;transform:translateY(-1px);box-shadow:0 4px 12px #10b98133}.reset-btn{border:1px solid var(--border);border-radius:var(--r-sm);width:100%;color:var(--text-muted);cursor:pointer;background:0 0;margin-top:.375rem;padding:.625rem;font-family:Outfit,sans-serif;font-size:.875rem;font-weight:500;transition:all 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0;border:none;align-items:center;gap:4px;margin-top:.375rem;font-family:Outfit,sans-serif;font-size:.75rem;font-weight:500;text-decoration:none;display:inline-flex}.pdf-preview-open:hover{text-decoration:underline}.info-strip{border-top:1px solid var(--border);flex-wrap:wrap;justify-content:center;gap:1.25rem;padding-top:.875rem;display:flex}.info-strip-item{color:var(--text-muted);align-items:center;gap:4px;font-size:.75rem;display:flex}.info-strip-item svg{flex-shrink:0;width:11px;height:11px}.divider{background:var(--border);height:1px;margin:.875rem 0}.showcase{background:var(--bg);padding:6rem 0}.showcase-row{justify-content:center;align-items:center;gap:0;max-width:900px;margin:0 auto;display:flex}.showcase-card{border-radius:var(--r-xl);border:1px solid var(--border);background:#fff;flex:1;max-width:380px;position:relative;overflow:hidden}.showcase-card img{width:100%;height:auto;display:block}.showcase-card-header{text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);align-items:center;gap:8px;padding:10px 14px;font-size:.8125rem;font-weight:700;display:flex}.showcase-card-header--before{color:#dc2626;background:#ef444408}.showcase-card-header--before .showcase-card-header-dot{background:#dc2626;border-radius:50%;width:6px;height:6px}.showcase-card-header--after{color:#059669;background:#10b98108}.showcase-card-header--after .showcase-card-header-dot{background:#059669;border-radius:50%;width:6px;height:6px}.showcase-chain{flex-direction:column;justify-content:center;align-items:center;gap:8px;min-width:100px;padding:0 1.5rem;display:flex}.chain-dot{background:var(--border-hover);border-radius:50%;width:6px;height:6px}.chain-dot:first-child{animation:2s ease-in-out infinite pulse-dot}.chain-dot:nth-child(2){animation:2s ease-in-out .25s infinite pulse-dot}.chain-dot:nth-child(3){animation:2s ease-in-out .5s infinite pulse-dot}.chain-shield{color:var(--accent-blue);animation:2.5s ease-in-out infinite shield-pulse}.chain-arrow{color:var(--text-muted);animation:1.5s ease-in-out infinite arrow-flow}.chain-arrow:nth-child(7){animation-delay:.15s}.chain-arrow:nth-child(8){animation-delay:.3s}.chain-check{color:var(--accent-green)}.chain-check path{stroke-dasharray:24;stroke-dashoffset:24px;animation:2s ease-in-out infinite check-draw}@media (max-width:768px){.showcase-row{flex-direction:column;gap:0}.showcase-chain{flex-direction:row;min-width:auto;padding:1rem 0}}.steps-grid{background:var(--border);border:1px solid var(--border);border-radius:var(--r-lg);grid-template-columns:repeat(3,1fr);gap:1px;display:grid;overflow:hidden}.step-card{background:var(--bg);text-align:center;padding:2.25rem 1.75rem;transition:background .15s}.step-card:hover{background:var(--bg-subtle)}.step-number{background:var(--accent-blue);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;margin-bottom:1rem;font-size:.9375rem;font-weight:700;display:inline-flex}.step-card h3{color:var(--text);letter-spacing:-.01em;margin-bottom:.375rem;font-size:1.125rem;font-weight:700}.step-card p{color:var(--text-secondary);font-size:.9375rem;line-height:1.6}@media (max-width:768px){.steps-grid{grid-template-columns:1fr}}.features-grid{grid-template-columns:repeat(2,1fr);gap:1rem;display:grid}.feature-card{border:1px solid var(--border);border-radius:var(--r-md);background:var(--bg);align-items:flex-start;gap:1rem;padding:1.5rem;transition:all 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