#reportBtn { position: relative; }
.support-badge { position:absolute;top:1px;right:1px;box-sizing:border-box;min-width:14px;height:14px;padding:0 3px;border-radius:8px;background:#b42336;color:#fff;font:700 9px/14px 'Nunito',sans-serif;text-align:center;pointer-events:none; }
.support-badge[hidden], #supportModal[hidden], #supportModal [hidden] { display:none !important; }
#supportModal { --support-text:#202938;--support-muted:#526076;--support-border:#d8dfe8;--support-accent:#253d5a;position:fixed;inset:0;z-index:70;background:rgba(15,23,42,.55);display:flex;align-items:center;justify-content:center;padding:20px;color:var(--support-text);font-family:'Nunito',sans-serif; }
#supportModal * { box-sizing:border-box; }
.support-panel { width:min(980px,100%);height:min(760px,92dvh);background:#fff;border-radius:20px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 70px rgba(0,0,0,.22); }
.support-heading { display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 22px;border-bottom:1px solid var(--support-border); }
.support-heading h2 { margin:0;font:800 22px/1.3 'Nunito',sans-serif; }
.support-heading p { margin:4px 0 0;color:var(--support-muted);font-size:13px; }
.support-button { border:1px solid var(--support-border);border-radius:10px;padding:10px 14px;min-height:44px;background:#fff;color:var(--support-text);font:700 14px/1.3 'Nunito',sans-serif;cursor:pointer; }
.support-button:hover { background:#f1f5f9; }
.support-button:disabled { opacity:.55;cursor:wait; }
.support-button.primary { background:var(--support-accent);border-color:var(--support-accent);color:#fff; }
#supportModal :focus-visible { outline:3px solid #608aba;outline-offset:2px; }
.support-body { display:grid;grid-template-columns:300px minmax(0,1fr);min-height:0;flex:1; }
.support-sidebar { min-width:0;overflow:auto;border-right:1px solid var(--support-border);padding:14px; }
.support-toolbar { display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px; }
.support-thread-list { display:flex;flex-direction:column;gap:8px; }
.support-thread { display:block;width:100%;padding:13px;text-align:left;border:1px solid var(--support-border);background:#fff;border-radius:12px;cursor:pointer;color:var(--support-text);font:14px/1.4 'Nunito',sans-serif;overflow-wrap:anywhere; }
.support-thread[aria-current='true'] { border-color:var(--support-accent);background:#f0f4f8; }
.support-thread strong { display:block;font-size:14px; }
.support-thread p { margin:6px 0; }
.support-thread small { display:block;color:var(--support-muted);font-size:12px; }
.support-unread { color:#a21930;font-weight:800; }
.support-conversation { min-width:0;min-height:0;display:flex;flex-direction:column; }
.support-thread-heading { padding:14px 20px;border-bottom:1px solid var(--support-border);display:flex;align-items:center;gap:12px; }
.support-thread-heading h3 { margin:0;font-size:18px; }
.support-thread-heading p { margin:3px 0 0;font-size:13px;color:var(--support-muted); }
.support-messages { flex:1;overflow:auto;overscroll-behavior:contain;padding:20px;min-height:0; }
.support-message { margin:0 35px 15px 0;padding:13px 15px;background:#f1f5f9;border-radius:13px;overflow-wrap:anywhere; }
.support-message.from-student { margin:0 0 15px 35px;background:#e9f0f6; }
.support-message header { display:flex;justify-content:space-between;gap:12px;color:var(--support-muted);font-size:12px;margin-bottom:7px; }
.support-message p { white-space:pre-wrap;margin:0;font-size:15px;line-height:1.55; }
.support-attachment { display:block;margin-top:10px;color:var(--support-accent);font-size:13px; }
.support-attachment img { display:block;max-width:100%;max-height:240px;border-radius:8px;margin-top:6px; }
.support-composer { border-top:1px solid var(--support-border);padding:14px 20px; }
.support-composer label { font-weight:700;font-size:13px;display:block;margin-bottom:5px; }
.support-composer textarea { width:100%;min-height:72px;max-height:150px;resize:vertical;border:1px solid var(--support-border);border-radius:10px;padding:10px;color:var(--support-text);background:#fff;font:15px/1.45 'Nunito',sans-serif; }
.support-compose-actions { display:flex;justify-content:space-between;align-items:end;gap:10px;margin-top:8px; }
.support-compose-actions input { max-width:230px;width:100%;font:12px 'Nunito',sans-serif; }
.support-status { min-height:20px;font-size:13px;color:var(--support-muted);padding:6px 20px;margin:0; }
.support-status.error { color:#a21930; }
.support-empty { color:var(--support-muted);font-size:14px;line-height:1.5;padding:24px 12px;text-align:center; }
.support-mobile-back { display:none; }
.support-more { margin-top:10px;width:100%; }
@media(max-width:650px) {
    #supportModal { padding:8px; }
    .support-panel { height:96dvh;border-radius:14px; }
    .support-heading { padding:14px; }
    .support-heading h2 { font-size:20px; }
    .support-heading p { font-size:12px;max-width:235px; }
    .support-body { grid-template-columns:minmax(0,1fr); }
    .support-sidebar { border-right:0; }
    .support-conversation { display:none; }
    #supportModal[data-view='thread'] .support-sidebar { display:none; }
    #supportModal[data-view='thread'] .support-conversation { display:flex; }
    .support-mobile-back { display:inline-block; }
    .support-messages { padding:14px; }
    .support-message { margin-right:12px; }
    .support-message.from-student { margin-left:12px; }
    .support-composer { padding:10px 14px; }
    .support-compose-actions { align-items:start; }
    .support-compose-actions input { max-width:175px; }
    .support-thread-heading { padding:10px 14px; }
}
.support-guest-link { margin:12px; font-size:13px; }
.support-guest-link[hidden] { display:none!important; }
.support-guest-link summary { cursor:pointer; min-height:36px; padding:8px 0; }
.support-guest-link p { margin:8px 0; line-height:1.5; }
.support-guest-link form { display:grid; gap:8px; }
.support-guest-link input { min-width:0; width:100%; min-height:44px; box-sizing:border-box; border:1px solid #cbd5e1; border-radius:8px; padding:8px; }
.support-guest-link button { min-height:44px; }
.support-guest-link :focus-visible { outline:2px solid #5b21b6; outline-offset:3px; }