.tll-qa{--tll-qa-primary:#3E64DE;--tll-qa-accent:#B6DFDA;--tll-qa-bg:#F6F8FC;--tll-qa-surface:#fff;--tll-qa-text:#172033;--tll-qa-muted:#667085;--tll-qa-border:#DDE3EE;--tll-qa-radius:16px;box-sizing:border-box;width:100%;max-width:100%;padding:clamp(14px,2vw,24px);border:1px solid var(--tll-qa-border);border-radius:calc(var(--tll-qa-radius) + 4px);background:var(--tll-qa-bg);color:var(--tll-qa-text);font:inherit}.tll-qa *{box-sizing:border-box}.tll-qa-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;margin-bottom:18px}.tll-qa-heading h2{margin:2px 0 6px;color:var(--tll-qa-text);font-size:clamp(22px,3vw,30px);line-height:1.15}.tll-qa-heading p{margin:0;color:var(--tll-qa-muted)}.tll-qa-eyebrow{display:block;color:var(--tll-qa-primary);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.tll-qa-count{display:inline-flex;align-items:center;justify-content:center;min-height:34px;padding:7px 11px;border:1px solid var(--tll-qa-border);border-radius:999px;background:var(--tll-qa-surface);color:var(--tll-qa-muted);font-size:12px;font-weight:700;white-space:nowrap}.tll-qa-panel,.tll-qa-reply{margin:0 0 14px;border:1px solid var(--tll-qa-border);border-radius:var(--tll-qa-radius);background:var(--tll-qa-surface);overflow:hidden}.tll-qa-panel>summary,.tll-qa-reply>summary{display:flex;align-items:center;gap:9px;padding:13px 15px;list-style:none;cursor:pointer;color:var(--tll-qa-text);font-weight:750}.tll-qa-panel>summary::-webkit-details-marker,.tll-qa-reply>summary::-webkit-details-marker{display:none}.tll-qa-panel>summary>.dashicons,.tll-qa-reply>summary>.dashicons{color:var(--tll-qa-primary)}.tll-qa-chevron{position:relative;width:18px;height:18px;margin-left:auto}.tll-qa-chevron:before,.tll-qa-chevron:after{content:"";position:absolute;top:50%;left:50%;width:8px;height:1.5px;border-radius:2px;background:currentColor;transition:transform .15s ease}.tll-qa-chevron:before{transform:translate(-50%,-50%)}.tll-qa-chevron:after{transform:translate(-50%,-50%) rotate(90deg)}details[open]>.tll-qa-chevron:after,details[open]>summary .tll-qa-chevron:after{transform:translate(-50%,-50%)}.tll-qa-form{display:grid;gap:14px;padding:0 15px 15px;border-top:1px solid var(--tll-qa-border)}.tll-qa-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding-top:14px}.tll-qa-form>label{display:grid;gap:6px}.tll-qa-form label>span,.tll-qa-context-card>span{color:var(--tll-qa-text);font-size:12px;font-weight:750}.tll-qa-form label small{color:var(--tll-qa-muted);font-weight:500}.tll-qa-form input,.tll-qa-form select,.tll-qa-form textarea{display:block;width:100%;min-width:0;max-width:100%;padding:10px 11px;border:1px solid var(--tll-qa-border);border-radius:10px;background:var(--tll-qa-surface);color:var(--tll-qa-text);font:inherit;box-shadow:none}.tll-qa-form textarea{resize:vertical}.tll-qa-form input:focus,.tll-qa-form select:focus,.tll-qa-form textarea:focus{border-color:var(--tll-qa-primary);outline:2px solid color-mix(in srgb,var(--tll-qa-primary) 16%,transparent)}.tll-qa-context-card{display:grid;gap:4px;padding:11px 12px;border:1px solid var(--tll-qa-border);border-radius:10px;background:color-mix(in srgb,var(--tll-qa-primary) 4%,var(--tll-qa-surface))}.tll-qa-context-card>span{color:var(--tll-qa-muted)}.tll-qa-form-actions{display:flex;justify-content:flex-end}.tll-qa-button{appearance:none;display:inline-flex;align-items:center;justify-content:center;gap:7px;min-height:40px;padding:8px 14px;border:1px solid var(--tll-qa-primary);border-radius:10px;background:var(--tll-qa-primary);color:#fff;font:inherit;font-weight:750;cursor:pointer}.tll-qa-button:hover,.tll-qa-button:focus{filter:brightness(.94);color:#fff}.tll-qa-button .dashicons{width:17px;height:17px;font-size:17px}.tll-qa-list{display:grid;gap:12px}.tll-qa-thread{padding:15px;border:1px solid var(--tll-qa-border);border-radius:var(--tll-qa-radius);background:var(--tll-qa-surface);box-shadow:0 4px 16px rgba(15,23,42,.035)}.tll-qa-thread:target{border-color:var(--tll-qa-primary);box-shadow:0 0 0 2px color-mix(in srgb,var(--tll-qa-primary) 14%,transparent)}.tll-qa-thread-top{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.tll-qa-person{display:flex;align-items:center;gap:10px;min-width:0}.tll-qa-person img{display:block;flex:0 0 auto;border-radius:50%;object-fit:cover}.tll-qa-person>div{display:grid;min-width:0}.tll-qa-person strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--tll-qa-text);font-size:13px}.tll-qa-person span{color:var(--tll-qa-muted);font-size:11px}.tll-qa-status{display:inline-flex;align-items:center;min-height:28px;padding:5px 9px;border-radius:999px;font-size:11px;font-weight:800;white-space:nowrap}.tll-qa-status.is-pending{background:#fff8e6;color:#9a6700}.tll-qa-status.is-answered{background:#ecfdf3;color:#067647}.tll-qa-context-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:13px 0 0}.tll-qa-context-line>span{display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border-radius:999px;background:var(--tll-qa-bg);color:var(--tll-qa-muted);font-size:11px;font-weight:650}.tll-qa-context-line .dashicons{width:14px;height:14px;font-size:14px;color:var(--tll-qa-primary)}.tll-qa-message{margin-top:13px;color:var(--tll-qa-text);font-size:14px;line-height:1.65}.tll-qa-assignee{margin-top:11px;color:var(--tll-qa-muted);font-size:11px}.tll-qa-answer-list{display:grid;gap:9px;margin-top:14px;padding-top:14px;border-top:1px solid var(--tll-qa-border)}.tll-qa-answer{display:grid;gap:9px;padding:12px;border-left:3px solid var(--tll-qa-accent);border-radius:0 10px 10px 0;background:color-mix(in srgb,var(--tll-qa-accent) 16%,var(--tll-qa-surface));color:var(--tll-qa-text);font-size:14px;line-height:1.6}.tll-qa-answer .tll-qa-person strong{font-size:12px}.tll-qa-reply{margin:14px 0 0;background:var(--tll-qa-bg)}.tll-qa-reply .tll-qa-form{background:var(--tll-qa-surface)}.tll-qa-empty{display:grid;place-items:center;gap:7px;min-height:180px;padding:28px;border:1px dashed var(--tll-qa-border);border-radius:var(--tll-qa-radius);background:var(--tll-qa-surface);color:var(--tll-qa-muted);text-align:center}.tll-qa-empty>.dashicons{width:32px;height:32px;font-size:32px;color:var(--tll-qa-primary)}.tll-qa-empty strong{color:var(--tll-qa-text)}.tll-qa-notice,.tll-qa-login{margin-bottom:14px;padding:11px 13px;border:1px solid var(--tll-qa-border);border-radius:10px;background:#fff;color:#172033}.tll-qa-notice.is-success{border-color:#abefc6;background:#ecfdf3;color:#067647}.tll-qa-notice.is-error{border-color:#fecdca;background:#fef3f2;color:#b42318}@media(max-width:650px){.tll-qa-heading{display:grid}.tll-qa-count{justify-self:start}.tll-qa-form-grid{grid-template-columns:1fr}.tll-qa-thread-top{align-items:flex-start}.tll-qa{padding:12px}.tll-qa-form-actions{justify-content:stretch}.tll-qa-button{width:100%}}

/* Threaded Q&A conversations (v1.36.0) */
.tll-qa-answer.is-student-message{
  border-left-color:var(--tll-qa-primary);
  background:color-mix(in srgb,var(--tll-qa-primary) 7%,var(--tll-qa-surface));
  margin-left:clamp(12px,4vw,42px);
}
.tll-qa-answer.is-teacher-message{
  margin-right:clamp(12px,4vw,42px);
}
.tll-qa-followup{
  margin-top:12px;
  background:color-mix(in srgb,var(--tll-qa-primary) 3%,var(--tll-qa-surface));
}
.tll-qa-followup>summary{
  color:var(--tll-qa-primary);
}
@media(max-width:650px){
  .tll-qa-answer.is-student-message,.tll-qa-answer.is-teacher-message{margin-left:0;margin-right:0}
}

/* Resolved discussions (v1.39.0) */
.tll-qa-status.is-resolved{background:#eef2f6;color:#344054}
.tll-qa-resolve-form{display:flex;justify-content:flex-end;margin-top:10px}
.tll-qa-button-secondary{border-color:var(--tll-qa-border);background:var(--tll-qa-surface);color:var(--tll-qa-text)}
.tll-qa-button-secondary:hover,.tll-qa-button-secondary:focus{border-color:var(--tll-qa-primary);background:color-mix(in srgb,var(--tll-qa-primary) 6%,var(--tll-qa-surface));color:var(--tll-qa-primary);filter:none}
.tll-qa-resolved-note{display:flex;align-items:flex-start;gap:8px;margin-top:12px;padding:10px 12px;border:1px solid var(--tll-qa-border);border-radius:10px;background:color-mix(in srgb,var(--tll-qa-muted) 6%,var(--tll-qa-surface));color:var(--tll-qa-muted);font-size:12px;line-height:1.5}
.tll-qa-resolved-note .dashicons{width:16px;height:16px;flex:0 0 16px;font-size:16px;color:var(--tll-qa-muted)}
@media(max-width:650px){.tll-qa-resolve-form{justify-content:stretch}.tll-qa-resolve-form .tll-qa-button{width:100%}}

/* Design System radius/padding tokens (v2.3.0) */
.tll-qa{--tll-qa-pad:16px;padding:var(--tll-qa-pad)}
.tll-qa-card,.tll-qa-thread,.tll-qa-form,.tll-qa-notice{padding:var(--tll-qa-pad);border-radius:var(--tll-qa-radius)}
.tll-qa button,.tll-qa input,.tll-qa select,.tll-qa textarea{border-radius:max(4px,calc(var(--tll-qa-radius) * .65))}
/* Beta 1: direct image attachments for Q&A. */
.tll-qa-attachment-field{display:grid!important;gap:8px!important}
.tll-qa-file-picker{position:relative;display:grid!important;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:10px;align-items:center;padding:12px 14px;border:1px dashed var(--tll-qa-border);border-radius:11px;background:color-mix(in srgb,var(--tll-qa-primary) 3%,var(--tll-qa-surface));cursor:pointer;overflow:hidden}
.tll-qa-file-picker>.dashicons{grid-row:1/3;width:24px;height:24px;font-size:24px;color:var(--tll-qa-primary)}
.tll-qa-file-picker>strong{font-size:12px;color:var(--tll-qa-text)}
.tll-qa-file-picker>small{font-size:10px;color:var(--tll-qa-muted)}
.tll-qa-file-picker input[type=file]{position:absolute!important;inset:0;width:100%!important;height:100%!important;opacity:0;cursor:pointer;padding:0!important;border:0!important}
.tll-qa-image-preview{display:flex!important;flex-wrap:wrap;gap:7px;min-height:0}
.tll-qa-image-preview:empty{display:none!important}
.tll-qa-image-preview img,.tll-qa-attachments img{display:block;width:76px;height:76px;border-radius:9px;object-fit:cover;border:1px solid var(--tll-qa-border);background:var(--tll-qa-bg)}
.tll-qa-attachments{display:flex;flex-wrap:wrap;gap:7px;margin-top:10px}
.tll-qa-attachments a{display:block;border-radius:9px;overflow:hidden}
.tll-qa-file-error{display:block;color:#b42318;font-size:10px;font-weight:700}
@media(max-width:650px){.tll-qa-image-preview img,.tll-qa-attachments img{width:68px;height:68px}}