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20px;border:none;background:none;cursor:pointer;font-size:14px;font-weight:500;color:var(--sd-text-2);border-bottom:3px solid transparent;margin-bottom:-2px;border-radius:0;transition:color .15s,border-color .15s}.course-tab:hover{color:var(--sd-blue)}.course-tab-active{color:var(--sd-blue);border-bottom-color:var(--sd-blue)}.ex-contact-form{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.ex-label{font-size:13px;font-weight:600;color:var(--sd-text)}.ex-input{padding:9px 12px;border:1px solid var(--sd-border);border-radius:var(--sd-radius);font-size:14px;font-family:var(--sd-font);color:var(--sd-text);background:var(--sd-surface);outline:none;transition:border-color .15s}.ex-input:focus{border-color:var(--sd-blue)}.ex-input:disabled{background:var(--sd-bg);color:var(--sd-text-2)}.ex-contact-preview{margin-top:4px;background:var(--sd-bg);border:1px solid var(--sd-border);border-radius:var(--sd-radius);padding:12px;font-size:13px}.ex-contact-preview pre{margin:6px 0 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var(--sd-border);flex-wrap:wrap;align-items:baseline}.notif-header-row:last-child{border-bottom:none}.notif-header-highlight{background:var(--sd-blue-light)}.notif-header-key{font-weight:600;color:var(--sd-text);flex-shrink:0;font-family:monospace}.notif-header-val{color:var(--sd-text-2);font-family:monospace;word-break:break-all;font-size:12px}.ex-shex-quiz{display:flex;flex-direction:column;gap:14px}.shex-question{font-size:15px;font-weight:500;color:var(--sd-text);line-height:1.5;background:var(--sd-bg);border-radius:var(--sd-radius);padding:12px 14px;font-family:monospace}.shex-options{display:flex;flex-direction:column;gap:8px}.shex-option{padding:10px 14px;border:2px solid var(--sd-border);border-radius:var(--sd-radius);background:var(--sd-surface);cursor:pointer;font-size:14px;text-align:left;color:var(--sd-text);transition:border-color .15s,background 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14px}.lcs-check{color:var(--sd-green);font-size:16px;flex-shrink:0;margin-top:1px}.lcs-content{display:flex;flex-direction:column;gap:2px}.lcs-label{font-size:13px;font-weight:600;color:var(--sd-text)}.lcs-value{font-size:12px;color:var(--sd-text-2);word-break:break-all}.mark-complete-prompt{font-size:15px;color:var(--sd-text);line-height:1.6;margin-bottom:16px}.mark-complete-prompt a{color:var(--sd-blue)}.ex-acl-result{display:flex;flex-direction:column;gap:10px}