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var(--border-color);border-radius:.5rem;box-shadow:0 4px 12px #00000026;min-width:200px;padding:.5rem 0;margin-top:.5rem;z-index:1000}.dropdown-menu a{display:block;padding:.75rem 1.5rem;color:var(--text-color);text-decoration:none;font-weight:500;font-size:1rem;transition:background .2s,color .2s}.dropdown-menu a:hover{background:var(--bg-light);color:var(--primary-color)}.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;background:none;border:none;cursor:pointer;padding:4px;width:36px}.hamburger-bar{display:block;height:2px;width:100%;background:var(--text-color, #1e293b);border-radius:2px;transition:transform .2s,opacity .2s}.mobile-menu{display:none}@media (max-width: 768px){.header-container{padding:0 1rem;display:grid;grid-template-columns:36px 1fr 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2rem;text-align:center;overflow:hidden;height:calc(100vh - 220px);display:flex;align-items:center;justify-content:center;width:100%;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%)}.hero-video{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;z-index:0;pointer-events:none}.hero-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#0000004d;z-index:1}.hero-container{position:relative;max-width:1400px;margin-left:auto;margin-right:auto;z-index:2;padding-left:2rem;padding-right:2rem;text-align:center;box-sizing:border-box;width:100%;min-width:0}.hero-title{font-size:clamp(2rem,4vw,8rem);font-weight:700;margin:0 auto 1.5rem;line-height:1.1;text-shadow:0 2px 8px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.2);white-space:normal;color:#fffffffa;text-align:center;display:block;width:100vw;padding:0;margin-left:calc(-50vw + 50%);margin-right:calc(-50vw + 50%);box-sizing:border-box}.hero-subtitle{font-size:1.25rem;margin:0 0 2.5rem;opacity:.92;line-height:1.6;text-shadow:0 2px 8px rgba(0,0,0,.4),0 4px 16px rgba(0,0,0,.2);color:#fffffff2;text-align:center;display:block;width:100%;padding:0;margin-left:0;margin-right:0;box-sizing:border-box;flex-shrink:0}.hero-cta{display:inline-block;background:#fff;color:var(--primary-color);padding:1rem 2.5rem;border-radius:.5rem;text-decoration:none;font-weight:600;font-size:1.1rem;transition:background .2s,color .2s;margin:0 auto}.hero-cta:hover{background:var(--bg-light)}@media (min-width: 1024px){.hero-title{white-space:nowrap}}@media (max-width: 768px){.hero{padding:4.5rem 1.5rem;height:auto;min-height:unset}.hero-title{font-size:clamp(1.75rem,8vw,2.5rem);width:100%;margin-left:0;margin-right:0}.hero-subtitle{font-size:1.1rem}.hero-cta{padding:.875rem 2rem;font-size:1rem}}.why-digital-sign-intro{padding:5rem 2rem;background:var(--bg-light)}@media (max-width: 768px){.why-digital-sign-intro{padding:3rem 1.5rem}}.why-digital-sign-page{padding:5rem 2rem;background:var(--bg-light);min-height:100vh}@media (max-width: 768px){.why-digital-sign-page{padding:3rem 1.5rem}}.why-choose-sign123-page{padding:5rem 2rem;background:var(--bg-light);min-height:100vh}@media (max-width: 768px){.why-choose-sign123-page{padding:3rem 1.5rem}}.how-it-works-page{padding:5rem 2rem;background:var(--bg-light);min-height:100vh}.steps-list{display:flex;flex-direction:column;gap:2rem;margin-bottom:4rem}.step-item{display:flex;flex-direction:row;align-items:flex-start;gap:2rem;padding:2rem;background:#fff;border-radius:.5rem;box-shadow:0 1px 3px #0000001a;transition:box-shadow .2s}.step-item:hover{box-shadow:0 4px 12px #00000026}.step-number{flex-shrink:0;width:5rem;height:5rem;background:var(--primary-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:3rem;font-weight:700}.step-content h3{font-size:1.5rem;color:var(--text-color);margin:0 0 .75rem;line-height:1.4}.step-content p{font-size:1.125rem;color:var(--text-light);margin:0;line-height:1.7}@media (max-width: 768px){.how-it-works-page{padding:3rem 1.5rem}.steps-list{gap:1.5rem;margin-bottom:3rem}.step-item{flex-direction:column;align-items:center;text-align:center;padding:1.5rem}.step-number{width:4rem;height:4rem;font-size:2.5rem}.step-content h3{font-size:1.25rem}.step-content p{font-size:1rem}}.about-page{padding:5rem 2rem;background:var(--bg-light);min-height:100vh}@media (max-width: 768px){.about-page{padding:3rem 1.5rem}}.privacy-policy-page{padding:4rem 2rem;min-height:60vh}.privacy-policy-container{max-width:900px;margin:0 auto}.privacy-policy-container h1{font-size:2.5rem;color:var(--text-color);margin-bottom:.5rem;text-align:center}.privacy-policy-container .last-updated{text-align:center;color:var(--text-light);margin-bottom:3rem;font-style:italic}.privacy-policy-container section{margin-bottom:2.5rem}.privacy-policy-container section h2{font-size:1.75rem;color:var(--text-color);margin-bottom:1rem;margin-top:2rem}.privacy-policy-container section h2:first-of-type{margin-top:0}.privacy-policy-container section h3{font-size:1.25rem;color:var(--text-color);margin-top:1.5rem;margin-bottom:.75rem}.privacy-policy-container section p{color:var(--text-light);line-height:1.7;margin-bottom:1rem;font-size:1.125rem}.privacy-policy-container section ul{margin:1rem 0;padding-left:2rem}.privacy-policy-container section ul li{color:var(--text-light);line-height:1.7;margin-bottom:.5rem;font-size:1.125rem}.privacy-policy-container section li strong{color:var(--text-color)}.privacy-policy-container section a{color:var(--primary-color);text-decoration:none;transition:color .2s}.privacy-policy-container section a:hover{color:var(--primary-dark);text-decoration:underline}@media (max-width: 768px){.privacy-policy-page{padding:3rem 1.5rem}.privacy-policy-container h1{font-size:2rem}.privacy-policy-container section h2{font-size:1.5rem}}.product-page{padding:4rem 2rem;min-height:60vh}.product-content{max-width:800px;margin:0 auto}.product-content .section-title{margin-top:3rem;margin-bottom:1rem}.product-content .section-title:first-of-type{margin-top:0}.feature-list{list-style:none;padding:0;margin:1.5rem 0}.feature-list li{padding:.75rem 0 .75rem 1.5rem;position:relative;color:var(--text-light);line-height:1.7}.feature-list li:before{content:"✓";position:absolute;left:0;color:var(--primary-color);font-weight:600}@media (max-width: 768px){.product-page{padding:3rem 1.5rem}}.signup{padding:5rem 2rem;background:#e8efff}.signup-container{max-width:600px;margin:0 auto;text-align:center;padding:0 1rem;box-sizing:border-box}.signup-form{text-align:left;width:100%;display:block}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-color)}.form-group input,.form-group textarea{width:100%;padding:.875rem;border:1px solid var(--border-color);border-radius:.5rem;font-size:1rem;font-family:inherit;transition:border-color .2s,box-shadow .2s;box-sizing:border-box}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #2563eb1a}.submit-button{width:100%;padding:1rem;background:var(--primary-color);color:#fff;border:none;border-radius:.5rem;font-size:1.1rem;font-weight:600;font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;cursor:pointer;transition:background .2s;box-sizing:border-box;margin-top:.5rem}.submit-button:hover:not(:disabled){background:var(--primary-dark)}.submit-button:disabled{opacity:.6;cursor:not-allowed}.success-message{margin-top:1rem;color:#10b981;font-weight:500;text-align:center}.error-message{margin-top:1rem;color:#ef4444;font-weight:500;text-align:center}@media (max-width: 768px){.signup{padding:3rem 1.5rem}}.signup-page{padding:4rem 2rem;min-height:60vh}@media (max-width: 768px){.signup-page{padding:3rem 1.5rem}}.contact-page{padding:5rem 2rem;background:#e8efff;min-height:60vh}.contact-container{max-width:700px;margin:0 auto;text-align:center;padding:0 1rem;box-sizing:border-box}.contact-form{text-align:left;width:100%;display:block}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}@media (max-width: 600px){.contact-page{padding:3rem 1.5rem}.form-row{grid-template-columns:1fr;gap:0}}.terms-of-use-page{padding:4rem 2rem;min-height:60vh}.terms-of-use-container{max-width:900px;margin:0 auto}.terms-of-use-container h1{font-size:2.5rem;color:var(--text-color);margin-bottom:.5rem;text-align:center}.terms-of-use-container .last-updated{text-align:center;color:var(--text-light);margin-bottom:3rem;font-style:italic}.terms-of-use-container section{margin-bottom:2.5rem}.terms-of-use-container section h2{font-size:1.75rem;color:var(--text-color);margin-bottom:1rem;margin-top:2rem}.terms-of-use-container section h2:first-of-type{margin-top:0}.terms-of-use-container section p{color:var(--text-light);line-height:1.7;margin-bottom:1rem;font-size:1.125rem}.terms-of-use-container section ul{margin:1rem 0;padding-left:2rem}.terms-of-use-container section ul li{color:var(--text-light);line-height:1.7;margin-bottom:.5rem;font-size:1.125rem}.terms-of-use-container section a{color:var(--primary-color);text-decoration:none;transition:color .2s}.terms-of-use-container section a:hover{color:var(--primary-dark);text-decoration:underline}@media (max-width: 768px){.terms-of-use-page{padding:3rem 1.5rem}.terms-of-use-container h1{font-size:2rem}.terms-of-use-container section h2{font-size:1.5rem}}.buy-page{padding:2rem 2rem 4rem;min-height:60vh}.buy-page .page-container{max-width:1000px;margin:0 auto;text-align:center}.buy-page .page-title{margin-bottom:1rem;font-size:3.5rem}.buy-page .text-body-intro{margin-bottom:1rem}.buy-quantity{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:.75rem;margin-top:1.25rem;margin-bottom:2.5rem}.buy-quantity label{font-size:1rem;font-weight:600;color:var(--text-color)}.buy-quantity-control{display:inline-flex;flex-direction:column;align-items:center;gap:0}.buy-quantity-btn{width:1.5rem;height:1.3rem;font-size:1rem;line-height:1;font-family:inherit;background:var(--bg-light);border:1px solid var(--border-color);border-radius:4px;cursor:pointer;color:var(--text-color);padding:0}.buy-quantity-btn:first-child{border-bottom:none;border-radius:4px 4px 0 0}.buy-quantity-btn:last-child{border-top:none;border-radius:0 0 4px 4px}.buy-quantity-btn:hover:not(:disabled){background:var(--border-color)}.buy-quantity-btn:disabled{opacity:.4;cursor:not-allowed}.buy-quantity-number{width:2.5rem;text-align:center;font-size:1rem;font-weight:600;border:1px solid var(--border-color);border-radius:0;padding:.2rem 0}.buy-error{color:#dc2626;margin-bottom:2rem;font-size:.95rem}.buy-tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;text-align:left}.buy-card{border:1px solid var(--border-color);border-radius:12px;padding:2rem;display:flex;flex-direction:column;gap:1.25rem;background:var(--bg-light);position:relative}.buy-card-highlight{border-color:var(--primary-color);box-shadow:0 4px 12px #2563eb26}.buy-badge{position:absolute;top:-.75rem;left:50%;transform:translate(-50%);color:#fff;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;padding:.35rem .75rem;border-radius:6px}.buy-badge-popular{background:var(--primary-color)}.buy-badge-value{background:var(--primary-dark)}.buy-card-name{font-size:1.5rem;font-weight:700;color:var(--text-color)}.buy-card-description{color:var(--text-light);line-height:1.6;font-size:.95rem}.buy-pricing{display:flex;flex-direction:column;gap:.5rem;padding:1.25rem;background:#fff;border-radius:8px;border:1px solid var(--border-color)}.buy-price-main{display:flex;flex-direction:row;justify-content:center;align-items:baseline;gap:.25rem}.buy-price-amount{font-size:2.75rem;font-weight:700;color:var(--primary-color)}.buy-price-label{font-size:.9rem;color:var(--text-light)}.buy-price-effective{font-size:.8rem;color:var(--text-light);text-align:center}.buy-cta{width:100%;justify-content:center;text-align:center;cursor:pointer;border:none;font-size:1rem;font-family:inherit}.buy-cta:disabled{opacity:.6;cursor:not-allowed}.buy-tiers-wrapper{position:relative}.buy-enterprise-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:#ffffffeb;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:2rem;opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:10;text-align:center}.buy-enterprise-overlay--visible{opacity:1;pointer-events:auto}.buy-enterprise-overlay p{font-size:1.2rem;font-weight:600;color:var(--text-color);max-width:500px}.buy-enterprise-overlay a{color:var(--primary-color);font-weight:600;text-decoration:underline;font-size:1.1rem}@media (max-width: 768px){.buy-tiers{grid-template-columns:1fr}}.order-confirmation-page{padding:6rem 2rem;min-height:60vh}.order-confirmation-container{max-width:600px;margin:0 auto;text-align:center}.order-confirmation-check{width:64px;height:64px;background:#dcfce7;border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;font-size:1.75rem;color:#16a34a}.order-confirmation-page .page-title{margin-bottom:1rem}.order-confirmation-page .text-body-intro{margin-bottom:1.5rem}.order-confirmation-next{color:var(--text-light);font-size:.95rem;line-height:1.7}.order-confirmation-next a{color:var(--primary-color);text-decoration:none}.order-confirmation-next a:hover{text-decoration:underline}.features{padding:5rem 2rem;background:#e8efff}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem}.feature-card{background:#fff;padding:2rem;border-radius:.5rem;box-shadow:0 1px 3px #0000001a;transition:box-shadow .2s}.feature-card:hover{box-shadow:0 4px 12px #00000026}@media (max-width: 768px){.features{padding:3rem 1.5rem}.features-grid{grid-template-columns:1fr;gap:1.5rem}}.three-things{padding:5rem 2rem;background:var(--bg-color)}.three-things-list{display:flex;flex-direction:row;gap:2rem;justify-content:center}.thing-item{display:flex;flex-direction:column;align-items:center;text-align:center;gap:1.5rem;padding:2rem;background:var(--bg-light);border-radius:.5rem;transition:box-shadow .2s;flex:1;max-width:300px}.thing-item:hover{box-shadow:0 4px 12px #0000001a}.thing-number{flex-shrink:0;width:5rem;height:5rem;background:var(--primary-color);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:3rem;font-weight:700}.thing-content h3{font-size:1.5rem;color:var(--text-color);margin:0 0 .75rem;line-height:1.4}.thing-content p{font-size:1.125rem;color:var(--text-light);margin:0;line-height:1.7}@media (max-width: 968px){.three-things-list{flex-direction:column;align-items:center}.thing-item{max-width:100%;width:100%}}@media (max-width: 768px){.three-things{padding:3rem 1.5rem}.thing-item{padding:1.5rem}.thing-number{width:4rem;height:4rem;font-size:2.5rem}.thing-content h3{font-size:1.25rem}.thing-content p{font-size:1rem}}.footer{background:var(--text-color);border-top:1px solid var(--border-color);padding:4rem 2rem}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:2rem}.footer-links{display:flex;flex-direction:column;gap:.5rem}.footer-links a{color:#ffffffb3;text-decoration:none;font-size:.9rem;transition:color .2s}.footer-links a:hover{color:#ffffffe6;text-decoration:underline}.footer-logo{display:flex;justify-content:center;align-items:center}.footer-logo a{display:inline-block;text-decoration:none}.footer-logo-img{height:40px;width:auto;color:#fff}.footer-copyright{margin:0;color:#ffffffb3;font-size:.9rem;text-align:right}@media (max-width: 768px){.footer{padding:3rem 2rem}.footer-container{grid-template-columns:1fr;text-align:center;gap:2rem}.footer-logo{order:-1}.footer-copyright{text-align:center}.footer-links{align-items:center}}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1}*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2563eb;--primary-dark: #1e40af;--text-color: #1f2937;--text-light: #6b7280;--bg-color: #ffffff;--bg-light: #f9fafb;--border-color: #e5e7eb}body{font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:var(--text-color);line-height:1.6}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}h1,h2{font-family:"DM Serif Display",Georgia,serif}.page-title{font-size:2.5rem;text-align:center;margin-bottom:2rem;color:var(--text-color)}.section-title{font-size:2rem;color:var(--text-color);margin-bottom:1.5rem;font-weight:600}.card-title{font-size:1.5rem;margin-bottom:1rem;color:var(--primary-color)}.text-body{color:var(--text-light);line-height:1.7;font-size:1.125rem}.text-body a{color:var(--primary-color);text-decoration:none;transition:color .2s}.text-body a:hover{color:var(--primary-dark);text-decoration:underline}.text-body-large{color:var(--text-light);line-height:1.7;font-size:1.2rem}.text-body-intro{color:var(--text-light);line-height:1.7;font-size:1.3rem}.page-intro{max-width:800px;margin:0 auto 4rem;text-align:center}.page-intro p{color:var(--text-light);line-height:1.7;font-size:1.25rem;margin:0}.back-link{display:inline-block;color:var(--primary-color);text-decoration:none;font-weight:500;margin-bottom:2rem;transition:color .2s}.back-link:hover{color:var(--primary-dark);text-decoration:underline}.benefits-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:2rem;margin-bottom:4rem}.benefit-card{background:#fff;padding:2rem;border-radius:.5rem;box-shadow:0 1px 3px #0000001a;transition:box-shadow .2s}.benefit-card:hover{box-shadow:0 4px 12px #00000026}.benefit-card h3{font-size:1.5rem;margin-bottom:1rem;color:var(--primary-color)}.benefit-card p{color:var(--text-light);line-height:1.7;margin:0;font-size:1.125rem}.cta-section{text-align:center;padding:3rem 2rem;background:#fff;border-radius:.5rem;box-shadow:0 1px 3px #0000001a}.cta-text{font-size:1.5rem;color:var(--text-color);margin-bottom:1.5rem;font-weight:500}.cta-button{display:inline-block;background:var(--primary-color);color:#fff;padding:1rem 2.5rem;border-radius:.5rem;text-decoration:none;font-weight:600;font-size:1.1rem;font-family:DM Sans,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;transition:background .2s}.cta-button:hover{background:var(--primary-dark)}.page-container{max-width:1200px;margin:0 auto}.card{background:#fff;padding:2rem;border-radius:.5rem;box-shadow:0 1px 3px #0000001a}@media (max-width: 768px){.page-title{font-size:2rem;margin-bottom:1.5rem}.section-title{font-size:1.75rem;margin-bottom:1.25rem}.page-intro{margin-bottom:3rem}.page-intro p{font-size:1.1rem}.benefits-grid{grid-template-columns:1fr;gap:1.5rem;margin-bottom:3rem}.benefit-card{padding:1.5rem}.cta-section{padding:2rem 1.5rem}.cta-text{font-size:1.25rem}}