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figcaption{font-size:var(--font-size-small);color:var(--color-muted)}.lesson-video-captions{justify-content:space-between;align-items:flex-start;gap:var(--space-2);max-width:720px;display:flex}.lesson-video-caption,.lesson-video-caption-off{flex:1;min-height:3em;margin:0;line-height:1.5}.lesson-video-captions .button[aria-pressed=true]{background:var(--color-primary-soft);border-color:var(--color-primary-border);color:var(--color-primary)}.preview-video-note{margin:0 0 var(--space-2);color:var(--color-muted)}.preview-video-choices{gap:var(--space-1);flex-wrap:wrap;max-width:720px;display:flex}.preview-video-choices .button[aria-pressed=true]{background:var(--color-primary-soft);border-color:var(--color-primary-border);color:var(--color-primary)}.item{border-top:1px solid var(--color-line);padding-top:var(--space-3);margin-top:var(--space-1)}.item:first-child{border-top:0;margin-top:0;padding-top:0}.item-number{color:var(--color-primary)}.item .field .input{max-width:240px}.table-form .col-period{width:96px}.item-help:empty{display:none}.item-help .button{color:var(--color-primary)}.ordering-list{gap:var(--space-2);counter-reset:step;flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.ordering-row{align-items:center;gap:var(--space-2);padding:var(--space-1) var(--space-1) var(--space-1) var(--space-3);border:1px solid var(--color-line-strong);border-radius:var(--radius);background:var(--color-surface);counter-increment:step;display:flex}.ordering-row:before{content:counter(step);background:var(--color-primary-soft);width:24px;height:24px;color:var(--color-primary);font-size:var(--font-size-small);border-radius:50%;flex:none;place-items:center;font-weight:700;display:inline-grid}.ordering-row .text{flex:1;min-width:0}.attempt-footer{padding-top:var(--space-3);border-top:1px solid 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var(--space-4);background:var(--color-surface);border-top:1px solid var(--color-line);position:sticky;bottom:0}@media (width<=767px){.dialog{border-radius:var(--radius) var(--radius) 0 0;max-width:100vw;max-height:92dvh;margin:auto 0 0}.dialog .form-actions .button{flex:1}}.catalog-tree ul{padding-left:var(--space-3);margin:0;list-style:none}.catalog-tree>ul{padding-left:0}.catalog-tree li{margin:var(--space-1) 0}.catalog-tree>ul>li>strong{margin-top:var(--space-2);display:block}.catalog-tree .choice small{margin-left:var(--space-1)}.progress{align-items:center;gap:var(--space-2);display:flex}.progress-bar{background:var(--color-line);border-radius:999px;width:160px;height:8px;overflow:hidden}.progress-bar>span{background:var(--color-primary);height:100%;display:block}.progress-value{text-align:right;font-variant-numeric:tabular-nums;min-width:32px}@media (width<=767px){.progress{flex:1 0 100%}.progress-bar{flex:1;width:auto}}.filter-bar{gap:0 var(--space-3);grid-template-columns:repeat(auto-fit,minmax(220px,1fr));align-items:start;display:grid}.filter-static{gap:var(--space-1);margin:0 0 var(--space-3);flex-direction:column;display:flex}.filter-static small{color:var(--color-muted)}.filter-row{align-items:center;gap:var(--space-2) var(--space-4);margin-bottom:var(--space-3);flex-wrap:wrap;display:flex}.status-filter{gap:var(--space-2);border:0;flex-wrap:wrap;margin:0;padding:0;display:flex}.status-option{align-items:center;gap:var(--space-1);min-height:var(--control-h);padding:0 var(--space-3);border:1px solid var(--color-line-strong);background:var(--color-surface);cursor:pointer;border-radius:999px;font-weight:600;display:inline-flex}.status-option input{width:24px;height:24px;accent-color:var(--color-primary);margin:0}.status-option[data-selected=true]{border-color:var(--color-primary);background:var(--color-primary-soft);color:var(--color-primary)}.status-option:has(input:focus-visible){outline:2px solid var(--color-focus);outline-offset:2px}.check-inline{align-items:center;gap:var(--space-2);min-height:var(--control-h);cursor:pointer;display:inline-flex}.check-inline input{width:24px;height:24px;accent-color:var(--color-primary);margin:0}.library-total{margin:0 0 var(--space-2);color:var(--color-muted)}.library-chapter{margin-bottom:var(--space-4)}.library-chapter>h2{margin:0 0 var(--space-2)}.lesson-list{gap:var(--space-2);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.lesson-card{padding:var(--space-3) var(--space-4);border:1px solid var(--color-line);border-radius:var(--radius);background:var(--color-surface)}.lesson-head{justify-content:space-between;align-items:center;gap:var(--space-2) var(--space-3);flex-wrap:wrap;display:flex}.lesson-main,.segment-main{gap:var(--space-1);flex-direction:column;flex:280px;min-width:0;display:flex}.lesson-title{font-size:var(--font-size-base);margin:0}.lesson-card .meta{align-items:center;gap:var(--space-1) var(--space-2);flex-wrap:wrap;display:flex}.segment-list{margin:var(--space-2) 0 0;border-top:1px solid var(--color-line);padding:0;list-style:none}.segment-row{justify-content:space-between;align-items:center;gap:var(--space-2) var(--space-3);padding:var(--space-2) 0;border-bottom:1px solid var(--color-line);flex-wrap:wrap;display:flex}.segment-row:last-child{border-bottom:0;padding-bottom:0}.library-more{margin-top:var(--space-3);justify-content:center}@media (width<=767px){.lesson-card{padding:var(--space-3)}.lesson-head>.button,.segment-row>.button{flex:1 0 100%}}.auth-layout-split{--font-size-small:14px;--font-size-base:16px;--font-size-input:16px;--font-size-h1:24px;--font-size-display:36px;--line-height:1.5;--line-height-tight:1.2;--control-h:var(--control-h-relaxed);font-size:var(--font-size-base);line-height:var(--line-height)}.auth-switch{margin:var(--space-3) 0 0;color:var(--color-muted)}.auth-intro{display:none}@media (width<=767px){.auth-layout-split{--control-h:44px}}@media (width>=1024px){.auth-layout-split{place-items:center stretch;gap:var(--space-5);grid-template-columns:minmax(0,1fr) 320px;max-width:800px;margin:0 auto;padding:0}.app-main:has(>.auth-layout-split){align-content:center;display:grid}.auth-intro{display:block}.auth-tagline{margin:0 0 var(--space-3);font-size:var(--font-size-display);font-weight:700;line-height:var(--line-height-tight);text-wrap:balance}.auth-lead{margin:0 0 var(--space-5);color:var(--color-muted)}.auth-layout-split .auth-card{padding:var(--space-4)}.auth-steps{gap:var(--space-3);flex-direction:column;margin:0;padding:0;list-style:none;display:flex}.auth-steps li{align-items:center;gap:var(--space-3);display:flex}.auth-step-icon{border-radius:var(--radius);background:var(--color-primary-soft);width:40px;height:40px;color:var(--color-primary);flex:none;place-items:center;display:inline-grid}.auth-step-icon .icon{width:20px;height:20px}}