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0 3px var(--clay-10)}.sign-card-video{aspect-ratio:3/4;background:linear-gradient(160deg, var(--sage-20) 0%, var(--ink-10) 100%);flex-direction:column;justify-content:center;align-items:center;gap:8px;display:flex}.sign-card-label{background:var(--white);border-top:1px solid var(--ink-10);text-align:center;padding:.5rem .75rem}.confidence-bar-track{background:var(--ink-10);border-radius:99px;height:4px;overflow:hidden}.confidence-bar-fill{background:var(--clay);border-radius:99px;height:100%;transition:width .6s cubic-bezier(.4,0,.2,1)}.facial-marker-row{border-bottom:1px solid var(--ink-10);grid-template-columns:90px 1fr auto;align-items:center;gap:12px;padding:.55rem 0;display:grid}.facial-marker-row:last-child{border-bottom:none}.facial-marker-track{background:var(--ink-10);border-radius:99px;height:3px;overflow:hidden}.facial-marker-fill{background:var(--mustard);border-radius:99px;height:100%;transition:width .8s cubic-bezier(.4,0,.2,1)}.timeline-item{grid-template-columns:24px 1fr;gap:0 16px;display:grid;position:relative}.timeline-line{background:var(--ink-10);width:2px;position:absolute;top:32px;bottom:-8px;left:11px}.timeline-dot{border:2px solid var(--ink-10);background:var(--ivory);z-index:1;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:24px;height:24px;display:flex;position:relative}.timeline-dot.sign{border-color:var(--clay)}.timeline-dot.face{border-color:var(--mustard)}.timeline-dot.final{border-color:var(--slate);background:var(--slate)}.page-header{border-bottom:1px solid var(--ink-10);margin-bottom:2rem;padding:2.5rem 0 1.5rem}.navbar{z-index:100;background:var(--ivory-80);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--ink-10);position:sticky;top:0}.navbar-inner{justify-content:space-between;align-items:center;height:60px;display:flex}.nav-link{color:var(--ink-60);transition:color var(--transition), border-color var(--transition);border-bottom:1.5px solid #0000;padding:.25rem 0;font-size:.875rem;font-weight:500;text-decoration:none}.nav-link:hover{color:var(--ink)}.nav-link.active{color:var(--ink);border-bottom-color:var(--clay)}.nav-link:focus-visible{outline:2px solid var(--clay);outline-offset:2px;border-radius:2px}.logo-mark{align-items:center;gap:10px;text-decoration:none;display:flex}.logo-mark .wordmark{font-family:var(--font-sans);letter-spacing:-.03em;color:var(--ink);font-size:1.15rem;font-weight:800}.section{padding:clamp(4rem,8vw,8rem) 0}.section-sm{padding:clamp(2.5rem,5vw,4rem) 0}.feature-number{font-family:var(--font-serif);color:var(--ink-10);letter-spacing:-.03em;font-size:3.5rem;font-style:italic;line-height:1}.hero-visual{background:var(--ink);border-radius:var(--radius-lg);position:relative;overflow:hidden}.meaning-eq{flex-direction:column;align-items:flex-start;gap:0;display:flex}.meaning-row{border-bottom:1px solid var(--ink-10);align-items:center;gap:12px;padding:.75rem 0;display:flex}.meaning-row:last-child{border-bottom:none}.meaning-icon-box{border-radius:var(--radius-sm);flex-shrink:0;justify-content:center;align-items:center;width:40px;height:40px;display:flex}.comm-loop{flex-direction:column;align-items:center;gap:0;display:flex}.comm-step{text-align:center;flex-direction:column;align-items:center;display:flex}.comm-step-box{border:1.5px solid var(--ink-10);border-radius:var(--radius-md);background:var(--white);min-width:200px;padding:.7rem 2rem}.comm-arrow{background:linear-gradient(to bottom, var(--ink-10), var(--clay));width:2px;height:28px;position:relative}.comm-arrow:after{content:"";border-left:5px solid #0000;border-right:5px solid #0000;border-top:7px solid var(--clay);position:absolute;bottom:0;left:50%;transform:translate(-50%)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--ink-30);border-radius:99px}::selection{background:var(--clay-20);color:var(--ink)}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}.hero-grid{grid-template-columns:1fr;align-items:center;gap:clamp(2rem,4vw,4rem);display:grid}@media (width>=769px){.hero-grid{grid-template-columns:1fr 1fr}}@media (width<=768px){.hide-mobile{display:none!important}.webcam-frame{border-radius:var(--radius-md)}}@media (width>=769px){.show-mobile-only{display:none!important}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}