/* Shared PTE Teacher assistant for AmitTools subpages. Namespaced to avoid app styles. */
#at-chat-root{position:fixed;inset:auto 16px 16px auto;z-index:2140000000;font:14px/1.5 system-ui,-apple-system,Segoe UI,sans-serif;color:#172441}
#at-chat-root *{box-sizing:border-box}
#at-chat-root .at-launch{border:1px solid #8ea4d6;background:linear-gradient(125deg,#192c60,#445dd7);color:white;padding:12px 18px;border-radius:50px;box-shadow:0 14px 32px #192c6040;font:700 14px/1.2 inherit;cursor:pointer;display:flex;gap:8px;align-items:center;float:right}
#at-chat-root .at-window{width:min(390px,calc(100vw - 24px));height:min(580px,calc(100dvh - 90px));background:#fff;border:1px solid #d9e1f6;border-radius:20px;box-shadow:0 22px 70px #0b1b4750;display:flex;flex-direction:column;overflow:hidden;margin-bottom:12px;clear:both}
#at-chat-root .at-window[hidden]{display:none}
#at-chat-root .at-head{background:linear-gradient(120deg,#162754,#3a55ba);color:#fff;padding:16px;display:flex;align-items:center;gap:10px}
#at-chat-root .at-head-title{flex:1;min-width:0}
#at-chat-root .at-head strong{font-size:16px}
#at-chat-root .at-status{display:block;font-size:12px;color:#dce6ff}
#at-chat-root .at-close{font-size:22px;background:transparent;color:white;border:0;cursor:pointer;padding:0 5px}
#at-chat-root .at-log{padding:16px;flex:1;overflow:auto;overscroll-behavior:contain;display:flex;flex-direction:column;gap:12px;background:#f7f9ff}
#at-chat-root .at-msg{padding:10px 12px;max-width:92%;border-radius:14px;white-space:pre-wrap;overflow-wrap:anywhere;font-size:13px}
#at-chat-root .at-msg.assistant{background:#fff;align-self:flex-start;border:1px solid #e1e7f4}
#at-chat-root .at-msg.user{background:#e1e8ff;align-self:flex-end}
#at-chat-root .at-suggestions{display:flex;gap:6px;padding:9px 12px;overflow-x:auto}
#at-chat-root .at-suggestions button{white-space:nowrap;border:1px solid #dce4f4;border-radius:30px;background:#fff;padding:5px 9px;color:#233e79;cursor:pointer;font-size:12px}
#at-chat-root .at-form{display:flex;align-items:end;gap:8px;padding:10px 12px;border-top:1px solid #e7ebf5;margin:0}
#at-chat-root .at-input{flex:1;resize:none;min-height:43px;max-height:105px;border:1px solid #cfd8ed;border-radius:12px;padding:10px;font:inherit;background:#fff;color:#172441}
#at-chat-root .at-send{height:43px;border:0;border-radius:11px;background:#3d56b9;color:#fff;padding:0 13px;cursor:pointer;font:inherit;font-weight:700}
#at-chat-root button:focus-visible,#at-chat-root textarea:focus-visible{outline:3px solid #96acff;outline-offset:2px}
#at-chat-root button:disabled{opacity:.55;cursor:wait}
#at-chat-root .at-note{font-size:11px;color:#637089;margin:0;padding:0 14px 12px}
@media(max-width:520px){#at-chat-root{right:9px;bottom:9px}#at-chat-root .at-window{width:calc(100vw - 18px);height:min(620px,calc(100dvh - 85px))}}