.app-shell,.app-shell #conteudo{height:100dvh;overflow:hidden}.study-page{position:relative;height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--color-bg-page)}.learning-header{position:relative;z-index:40;height:72px;display:flex;flex:none;align-items:center;gap:20px;border-bottom:1px solid var(--color-border-subtle);background:#fffffff5;padding:0 28px;backdrop-filter:blur(10px)}.study-exit{min-height:44px;display:inline-flex;flex:none;align-items:center;gap:7px;border:1px solid var(--color-border-subtle);border-radius:var(--radius-md);background:#f1efea;padding:9px 13px;color:var(--color-text-secondary);font-size:13px;font-weight:500}.study-exit:hover{background:#e9e5dd;color:var(--color-text-primary)}.header-divider{width:1px;height:34px;flex:none;background:var(--color-border-subtle)}.course-heading{min-width:0;flex:1}.course-heading-line{display:flex;align-items:center;gap:9px}.course-heading 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var(--color-border-subtle);background:#fff}#sidebar-root{height:100%}.sidebar-scroll{height:100%;overflow-y:auto;padding:18px 14px 28px;scrollbar-color:var(--color-border-strong) transparent;scrollbar-width:thin}.sidebar-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding:0 4px}.sidebar-top h2{font-size:14px}.sidebar-collapse{width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--color-border-subtle);border-radius:var(--radius-sm);background:#f1efea;color:var(--color-text-secondary);cursor:pointer}.sidebar-progress{display:flex;align-items:center;gap:9px;margin-bottom:16px;border:1px solid #f0ece4;border-radius:var(--radius-md);background:var(--color-surface-2);padding:9px 11px}.sidebar-progress .progress-track{flex:1;height:8px}.sidebar-progress 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#d3e9a3;background:var(--color-progress-track)}.result-banner.success h2,.result-banner.success p{color:var(--color-progress-ink)}.result-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px}.review-link{min-height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--color-border-strong);border-radius:var(--radius-lg);background:#fff;padding:11px 17px;color:var(--color-text-primary);font-size:12px;font-weight:500}.certificate-ready{border:1px solid #d3e9a3;border-radius:var(--radius-xl);background:var(--green-50);padding:24px;text-align:center}.certificate-ready strong{display:block;color:var(--color-progress-ink);font-family:var(--font-display);font-size:18px}.certificate-ready>span{display:block;margin-top:5px;color:#3f6212;font-family:var(--font-mono);font-size:12px}.certificate-ready .btn{margin-top:16px}.cert-summary{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border:1px 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