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var(--tb-color-border-subtle);justify-content:space-between;align-items:center;height:66px;padding:0 18px 0 20px;display:flex}.tb-canvas-preview__header>div{gap:4px;display:grid}.tb-canvas-preview__header strong{font-size:13px;font-weight:600}.tb-canvas-preview__stage{height:430px;position:relative;overflow:hidden}.tb-canvas-grid{background-color:var(--tb-color-bg-canvas);background-image:radial-gradient(var(--tb-color-canvas-grid) .75px, transparent .75px);background-position:0 0;background-size:18px 18px}.tb-canvas-preview__edges{fill:none;height:100%;stroke:var(--tb-color-edge-default);stroke-width:1.3px;width:100%;position:absolute;top:0;left:0}.tb-node{background:var(--tb-color-bg-surface);border:1px solid var(--tb-color-border-default);border-radius:var(--tb-radius-lg);box-shadow:var(--tb-shadow-subtle);min-height:96px;width:var(--tb-node-width-default);padding:17px 18px 15px;position:relative;overflow:hidden}.tb-node__status{background:var(--tb-color-node-plan);width:3px;height:100%;position:absolute;top:0;left:0}.tb-node--fact .tb-node__status{background:var(--tb-color-node-fact)}.tb-node--generate .tb-node__status{background:var(--tb-color-node-generate)}.tb-node--review .tb-node__status{background:var(--tb-color-node-review)}.tb-node--accepted .tb-node__status{background:var(--tb-color-node-accepted)}.tb-node--error .tb-node__status{background:var(--tb-color-node-error)}.tb-node__eyebrow{color:var(--tb-color-text-tertiary);font-family:var(--tb-font-family-latin);letter-spacing:.12em;font-size:9px;font-weight:650}.tb-node h2{margin:8px 0 3px;font-size:14px;font-weight:600}.tb-node 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var(--tb-color-border-default);border-radius:var(--tb-radius-md);align-content:center;gap:5px;min-height:76px;padding:14px 16px;display:grid;position:relative}.tb-auth-context__node--wide{grid-column:1/-1}.tb-auth-context__node i{background:var(--tb-color-node-plan);width:3px;height:100%;position:absolute;top:0;left:0}.tb-auth-context__node:nth-child(2) i{background:var(--tb-color-node-generate)}.tb-auth-context__node:nth-child(3) i{background:var(--tb-color-node-review)}.tb-auth-context__node span{color:var(--tb-color-text-tertiary);font-size:11px}.tb-auth-context__node strong{font-size:13px;font-weight:600}.tb-mode-comparison{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:40px;display:grid}.tb-mode-comparison article{background:var(--tb-color-bg-surface);border:1px solid var(--tb-color-border-default);border-radius:var(--tb-radius-lg);min-height:170px;padding:20px}.tb-mode-comparison h2{margin:20px 0 7px;font-size:15px;font-weight:600}.tb-mode-comparison p{color:var(--tb-color-text-tertiary);margin:0;font-size:12px;line-height:1.7}.tb-auth-card{background:var(--tb-color-bg-surface);border:1px solid var(--tb-color-border-default);border-radius:var(--tb-radius-xl);box-shadow:var(--tb-shadow-floating);padding:34px}.tb-auth-card__heading h2{letter-spacing:-.025em;margin:10px 0 6px;font-size:25px;font-weight:620}.tb-auth-card__heading p{color:var(--tb-color-text-tertiary);margin:0;font-size:13px}.tb-auth-form{gap:17px;margin-top:28px;display:grid}.tb-field{gap:7px;display:grid}.tb-field>span{color:var(--tb-color-text-secondary);font-size:12px;font-weight:550}.tb-field input{background:var(--tb-color-bg-surface-subtle);border:1px solid var(--tb-color-border-default);border-radius:var(--tb-radius-md);height:44px;transition:background-color var(--tb-duration-fast) var(--tb-ease-standard), border-color var(--tb-duration-fast) var(--tb-ease-standard), box-shadow var(--tb-duration-fast) var(--tb-ease-standard);width:100%;padding:0 13px}.tb-field 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var(--tb-color-border-default);width:var(--tb-asset-panel-width)}.tb-agent-panel{background:var(--tb-color-bg-surface);border-left:1px solid var(--tb-color-border-default);width:var(--tb-agent-panel-width)}@keyframes tb-spin{to{transform:rotate(360deg)}}@media (max-width:1040px){.tb-hero{grid-template-columns:1fr;padding-top:72px}.tb-hero__copy{max-width:680px}.tb-hero__visual{max-width:760px}.tb-auth-layout{grid-template-columns:minmax(0,1fr) 400px;gap:48px}}@media (max-width:820px){.tb-auth-layout{max-width:500px;padding-top:50px;display:block}.tb-auth-context{display:none}.tb-feature-strip{grid-template-columns:1fr}.tb-feature-strip article+article{border-left:0;border-top:1px solid var(--tb-color-border-subtle);padding-left:0}}@media (max-width:640px){.tb-topbar--marketing,.tb-auth-topbar{padding:0 18px}.tb-topbar--marketing .tb-theme-toggle span,.tb-auth-topbar .tb-theme-toggle span,.tb-topbar--marketing 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