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(hover:hover){.hover\:border-border-hover:hover{border-color:var(--color-border-hover)}.hover\:border-danger-hover:hover{border-color:var(--color-danger-hover)}.hover\:border-text-body:hover{border-color:var(--color-text-body)}.hover\:bg-btn-primary-hover:hover{background-color:var(--color-btn-primary-hover)}.hover\:bg-danger-hover:hover{background-color:var(--color-danger-hover)}.hover\:bg-surface-alt:hover{background-color:var(--color-surface-alt)}.hover\:bg-surface-hover:hover{background-color:var(--color-surface-hover)}.hover\:bg-text-body:hover{background-color:var(--color-text-body)}.hover\:text-text-primary:hover{color:var(--color-text-primary)}.hover\:opacity-75:hover{opacity:.75}}.focus-visible\:outline-2:focus-visible{outline-style:var(--tw-outline-style);outline-width:2px}.focus-visible\:outline-offset-2:focus-visible{outline-offset:2px}.focus-visible\:outline-offset-4:focus-visible{outline-offset:4px}.focus-visible\:outline-focus-ring:focus-visible{outline-color:var(--color-focus-ring)}.active\:scale-\[0\.98\]:active{scale:.98}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}@media (prefers-reduced-motion:no-preference){.motion-safe\:animate-pulse{animation:var(--animate-pulse)}}@media not all and (width>=40rem){.max-sm\:w-16{width:calc(var(--spacing) * 16)}.max-sm\:px-0\.5{padding-inline:calc(var(--spacing) * .5)}}@media (width>=900px){.min-\[900px\]\:col-auto{grid-column:auto}.min-\[900px\]\:grid-cols-\[82px_minmax\(0\,1fr\)_auto\]{grid-template-columns:82px minmax(0,1fr) auto}}@media (width>=40rem){.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:text-xl{font-size:var(--text-xl);line-height:var(--tw-leading,var(--text-xl--line-height))}}@media (width>=48rem){.md\:gap-4{gap:calc(var(--spacing) * 4)}.md\:p-5{padding:calc(var(--spacing) * 5)}}.\[\&\:last-child\>\*\]\:border-b-0:last-child>*{border-bottom-style:var(--tw-border-style);border-bottom-width:0}}:root{--density-card-padding:16px;--density-section-gap:12px;--density-body-weight:400;--density-touch-min:48px;--btn-height-sm:36px;--btn-height-md:40px;--btn-height-lg:48px;--btn-font-size:14px;--btn-font-weight:500;--btn-disabled-opacity:.45}@media (width>=1024px){:root{--density-card-padding:24px;--density-section-gap:16px;--density-body-weight:300;--density-touch-min:36px}}body{font-family:var(--font-body);color:var(--color-text-primary);letter-spacing:-.005em;line-height:1.7;font-weight:var(--density-body-weight)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);letter-spacing:-.01em;color:var(--color-text-primary);line-height:1.35}.tp-hero-page{background:var(--color-surface);text-align:center;justify-content:center;align-items:center;min-height:100dvh;padding:64px 32px;display:flex}.tp-hero-inner{width:100%;max-width:880px}.tp-hero-label{color:var(--color-text-muted);font-size:var(--type-label-en-size);font-weight:var(--type-label-en-weight);letter-spacing:var(--type-label-en-tracking);text-transform:var(--type-label-en-transform);margin:0}.tp-hero-title{color:var(--color-text-primary);font-size:var(--type-hero-size);font-weight:var(--type-hero-weight);line-height:var(--type-hero-leading);letter-spacing:var(--type-hero-tracking);text-wrap:balance;margin:20px 0 0}.tp-hero-caption{max-width:640px;color:var(--color-text-body);font-size:var(--type-body-landing-size);line-height:var(--type-body-landing-leading);text-wrap:balance;margin:24px auto 0}.tp-hero-cta{flex-wrap:wrap;justify-content:center;gap:12px;margin-top:40px;display:flex}.tp-btn-landing{border:1px solid var(--color-btn-primary);border-radius:var(--radius-btn-landing);background:var(--color-btn-primary);min-height:56px;color:var(--color-surface);justify-content:center;align-items:center;padding:0 32px;font-size:16px;font-weight:600;text-decoration:none;display:inline-flex}.tp-btn-landing:hover{background:var(--color-btn-primary-hover)}.tp-btn-landing-secondary{border-color:var(--color-border);background:var(--color-surface);color:var(--color-text-body)}.tp-btn-landing-secondary:hover{border-color:var(--color-border-hover);background:var(--color-surface)}.tp-page{max-width:1184px;margin:0 auto;padding:32px 20px}.tp-page h1{font-size:var(--type-page-title-size);font-weight:var(--type-page-title-weight);line-height:var(--type-page-title-leading);letter-spacing:var(--type-page-title-tracking)}@media (width<=640px){.tp-hero-page{padding:48px 20px}.tp-hero-cta{flex-direction:column-reverse;align-items:stretch}}@keyframes tp-dialog-enter{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:none}}@keyframes tp-backdrop-enter{0%{opacity:0}to{opacity:1}}@keyframes tp-toast-enter{0%{opacity:0;translate:0 12px}to{opacity:1;translate:0}}.tp-join{background:var(--color-surface-alt);justify-content:center;align-items:center;min-height:100dvh;padding:48px 16px;display:flex}.tp-join-inner{text-align:center;width:100%;max-width:384px}.tp-join-inner h1{margin:0 0 16px;font-size:32px;font-weight:600;line-height:1.35}.tp-join-inner p{color:var(--color-text-body);font-size:14px}.tp-join-inner form{flex-direction:column;gap:16px;margin:24px 0 8px;display:flex}.tp-join-inner input{background:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;width:100%;min-width:0;height:48px;padding:0 16px}.tp-join-inner input:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:3px}.tp-join-inner input.tp-join-code{letter-spacing:.25em;text-align:center;text-transform:uppercase;height:56px;font:700 32px ui-monospace,monospace}.tp-join-summary{background:var(--color-surface-hover);border:1px solid var(--color-border);overflow-wrap:anywhere;border-radius:999px;margin-bottom:24px;padding:12px;font-size:13px!important}.tp-join-done>span{background:var(--color-success-bg);color:var(--color-success-text);border-radius:50%;justify-content:center;align-items:center;width:56px;height:56px;margin-bottom:24px;font-size:28px;display:inline-flex}.tp-join-inner #studentName{align-self:center;max-width:320px}.tp-join-inner #nameHint{color:var(--color-text-muted);font-size:12px}.tp-join-inner [role=alert]:empty{display:none}.tp-join-inner [role=alert]{color:var(--color-text-muted)}.tp-name-badge{background:var(--color-info-bg);width:48px;height:48px;color:var(--color-info-text);border-radius:50%;justify-content:center;align-items:center;margin-bottom:16px;display:inline-flex}.tp-save-status{border-bottom:1px solid var(--color-border);background:var(--color-surface);padding:4px 16px;font-size:13px}@media (width<=640px){.tp-join-inner h1{font-size:24px}}.tp-demo-banner{z-index:40;background:var(--color-warning-bg);color:var(--color-warning-text);border-bottom:1px solid var(--color-border);position:sticky;top:0}.tp-demo-banner-inner{flex-wrap:wrap;align-items:center;gap:12px;max-width:1144px;margin:0 auto;padding:8px 16px;display:flex}.tp-demo-banner-inner p{flex:1;min-width:200px;font-size:13px}.tp-demo-chip{background:var(--color-surface);border-radius:999px;padding:4px 12px;font-size:12px;font-weight:500}@media (width<=640px){.tp-demo-banner-inner p{flex-basis:100%}}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-duration{syntax:"*";inherits:false}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@keyframes pulse{50%{opacity:.5}}