.course-page,.lesson-page{max-width:1100px}
.lesson-documents{display:grid;gap:var(--space-3);margin-block:var(--space-5);padding:var(--space-5);border:1px solid var(--border-subtle);border-radius:var(--radius-card);background:var(--bg-panel)}.lesson-documents h3{margin:0}.lesson-document-card{display:flex;align-items:center;justify-content:space-between;gap:var(--space-4);padding:var(--space-4);border:1px solid var(--border-subtle);border-radius:12px;background:var(--bg-card)}.lesson-document-card>div{display:grid;gap:.3rem}.lesson-document-card span{color:var(--text-secondary);font-size:.86rem}@media(max-width:600px){.lesson-document-card{align-items:stretch;flex-direction:column}.lesson-document-card button{width:100%}}
.course-page-head{display:flex;justify-content:space-between;gap:var(--space-5);align-items:flex-end;margin-bottom:var(--space-6)}
.course-page-head p,.course-detail-header p{color:var(--text-secondary);line-height:var(--line-body);max-width:760px}
.course-module-mount{display:grid;gap:var(--space-6)}
.subject-filters{display:flex;gap:var(--space-2);flex-wrap:wrap}
.subject-chip{display:inline-flex;align-items:center;min-height:42px;padding:var(--space-2) var(--space-4);border:1px solid var(--line);border-radius:var(--radius-pill);background:var(--surface);color:var(--text-primary);text-decoration:none;font-weight:800;font-size:var(--font-small);transition:background var(--transition-fast),color var(--transition-fast),border-color var(--transition-fast)}
.subject-chip.active,.subject-chip:hover{background:var(--brand-deep);color:var(--text-on-dark);border-color:var(--brand-deep)}
.subject-group{display:grid;gap:var(--space-3)}
.subject-group>p{margin-top:-4px;color:var(--text-secondary);line-height:1.6}
.course-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--space-4)}
.course-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:var(--card-padding);display:flex;flex-direction:column;gap:var(--space-3);min-width:0;box-shadow:var(--shadow-sm);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),transform var(--transition-fast)}
.course-card:hover{border-color:var(--betooth-highlight-line);box-shadow:var(--shadow-md);transform:translateY(-2px)}
.course-card p{color:var(--text-secondary);line-height:1.6;margin:0}
.course-meta,.course-facts,.lesson-meta{display:flex;gap:var(--space-3);flex-wrap:wrap;margin:0}
.course-meta div,.course-facts div,.lesson-meta div{background:var(--surface-soft);border:1px solid transparent;border-radius:var(--radius-md);padding:var(--space-3)}
.course-meta dt,.course-facts dt,.lesson-meta dt{font-size:13px;color:var(--text-secondary);font-weight:600;letter-spacing:normal}
.course-meta dd,.course-facts dd,.lesson-meta dd{margin:3px 0 0;font-weight:800;color:var(--text-primary)}
.course-cta{margin-top:auto;display:inline-flex;justify-content:center;text-decoration:none}
.course-progress-block{display:grid;gap:var(--space-2)}
.course-progress-meta{display:flex;justify-content:space-between;gap:10px;font-size:13px;color:var(--text-secondary)}
.course-progress-meta strong{color:var(--text-primary)}
.course-progress{width:100%;height:10px;accent-color:var(--brand-deep);border:0;border-radius:var(--radius-pill);overflow:hidden}
.course-progress::-webkit-progress-bar{background:var(--surface-soft-strong);border-radius:20px}
.course-progress::-webkit-progress-value{background:var(--brand-deep);border-radius:20px}
.course-progress::-moz-progress-bar{background:var(--brand-deep);border-radius:20px}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:var(--space-2);list-style:none;margin:0;padding:0;font-size:var(--font-small);color:var(--text-secondary)}
.breadcrumb li{display:flex;gap:var(--space-2);align-items:center}
.breadcrumb li[data-separator]::after{content:attr(data-separator);color:var(--brand-light)}
.breadcrumb a{color:var(--muted);font-weight:800}
.course-detail-header,.lesson-header{display:grid;gap:var(--space-3)}
.course-detail-header h2,.lesson-header h2{margin-bottom:0}
.app .course-page .course-detail-header h2{font-size:clamp(22px,2vw,28px);line-height:1.35;overflow-wrap:anywhere}
.app .course-page .course-detail-header p{margin:0;line-height:1.6}
.section-heading{margin-top:8px}
.lesson-list{list-style:none;padding:0;margin:0;display:grid;gap:var(--space-3)}
.lesson-row{display:grid;grid-template-columns:auto 1fr auto;gap:var(--space-4);align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:var(--space-4);box-shadow:var(--shadow-sm);transition:border-color var(--transition-fast),background var(--transition-fast)}
.lesson-row:hover{border-color:var(--line-strong)}
.lesson-row.completed{border-color:var(--betooth-highlight-line);background:var(--betooth-highlight-surface)}
.lesson-order{width:40px;height:40px;border-radius:var(--radius-md);background:var(--surface-soft);color:var(--text-primary);display:grid;place-items:center;font-weight:900}
.lesson-row-content{min-width:0;display:grid;gap:4px}
.lesson-row{position:relative}
.lesson-title{display:flex;align-items:center;min-height:44px;overflow-wrap:anywhere}
.lesson-title::after{content:'';position:absolute;inset:0}
.lesson-row button,.lesson-row a:not(.lesson-title){position:relative;z-index:1}
.lesson-row:focus-within{outline:2px solid var(--border-active);outline-offset:3px}
.lesson-row-meta,.lesson-state{pointer-events:none}
.course-search-empty{grid-column:1/-1;display:grid;gap:12px;padding:16px;border-inline-start:2px solid var(--border-active)}
.course-search-empty[hidden]{display:none}
.course-search-empty p{margin:0;line-height:1.6}
.course-search-empty button{justify-self:start;min-height:44px}
.course-learning-state{margin:0;color:var(--text-secondary)}
.course-resume{justify-self:start;min-height:44px}
.app .course-page .course-cta,.app .course-page .pixel-card-details summary,.app .course-page .pixel-category-filters button{min-height:44px}
.app .course-page .pixel-category-filters button{min-width:44px}
.lesson-title{color:var(--text-primary);font-weight:900;text-decoration:none}
.lesson-title:hover{text-decoration:underline}
.lesson-row-meta,.lesson-state{font-size:13px;color:var(--text-secondary)}
.lesson-state{font-weight:800;text-align:right}
.lesson-content-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);padding:var(--card-padding);display:grid;gap:var(--space-3);box-shadow:var(--shadow-sm)}
.lesson-content-card>p{color:var(--text-secondary);line-height:var(--line-body)}
.lesson-placeholder{margin-top:var(--space-2);padding:var(--space-5);border-radius:var(--radius-lg);background:var(--surface-soft);border:1px dashed var(--line-strong)}
.lesson-placeholder p{color:var(--text-secondary);line-height:1.6;margin-bottom:0}
.lesson-completion-label{font-weight:800;color:var(--muted)!important}
.lesson-actions{display:flex;gap:var(--space-3);flex-wrap:wrap}
.lesson-navigation{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-4);border-top:1px solid var(--line);padding-top:var(--space-5)}
.lesson-navigation>div:last-child{text-align:right}
.lesson-navigation a{display:inline-flex;text-decoration:none;max-width:100%}
.module-state{padding:var(--card-padding);background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow-sm)}
.module-state p{color:var(--text-secondary);line-height:1.6}
.module-state a{display:inline-flex;text-decoration:none;margin-top:8px}
.storage-warning{margin:0;padding:var(--space-3) var(--space-4);background:var(--surface-orange);border:1px solid var(--warning-line);border-radius:var(--radius-md);color:var(--warning);font-size:var(--font-small);font-weight:700;line-height:1.5}
.storage-warning.compact{margin-top:12px}
.button-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}
.course-dashboard-cta{display:flex}
@media(max-width:760px){
  .course-grid{grid-template-columns:1fr}
  .lesson-row{grid-template-columns:auto 1fr}.lesson-state{grid-column:2;text-align:left}
  .lesson-navigation{grid-template-columns:1fr}.lesson-navigation>div:last-child{text-align:left}
  .lesson-navigation a{width:100%;justify-content:center}
  .course-facts,.lesson-meta{display:grid;grid-template-columns:1fr 1fr}
}
@media(max-width:480px){
  .course-card,.lesson-content-card{padding:19px}
  .course-facts,.lesson-meta{grid-template-columns:1fr}
  .subject-filters{gap:7px}
}