/* AI141: quiet chat canvas, readable in both themes, no bottom navigation. */
.ach141{--chat-line:color-mix(in srgb,currentColor 16%,transparent);--chat-soft:color-mix(in srgb,#198b84 8%,transparent);max-width:950px;margin:0 auto;padding:12px 0 32px;color:var(--ink,#173e36)}
.ach141-header{display:flex;align-items:center;gap:14px;margin:0 0 22px}.ach141-header h1{font-family:inherit;font-size:30px;margin:0;line-height:1.2}.ach141-header p{margin:4px 0 0;font-size:14px;opacity:.8}.ach141-header>.button{margin-left:auto}.ach141-avatar{display:grid;place-items:center;width:52px;height:52px;flex-shrink:0;border-radius:18px;background:linear-gradient(135deg,#087d72,#1766a2);color:#fff;font-size:28px;box-shadow:0 5px 18px #087d7225}.ach141-toolbar{display:flex;gap:9px;align-items:center;padding:12px 0;border-bottom:1px solid var(--chat-line)}.ach141-toolbar .button,.ach141-composer .button{min-height:44px;padding:10px 15px;font-size:14px}.ach141-toolbar select{flex:1;width:0;min-width:90px;max-width:400px;padding:10px;border:1px solid var(--chat-line);border-radius:14px;background:var(--panel,#fff);color:inherit;min-height:44px}.ach141-chat{padding:22px 0}.ach141-welcome{text-align:center;padding:30px 12px}.ach141-welcome>span{font-size:45px;color:#10887e}.ach141-welcome h2{font-family:inherit;font-size:29px;margin:14px 0}.ach141-welcome p{font-size:16px;opacity:.8}.ach141-suggestions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:26px auto 0;max-width:680px}.ach141-suggestions button{border:1px solid var(--chat-line);background:var(--panel,#fff);color:inherit;border-radius:18px;padding:18px;text-align:left;font:inherit;font-size:14px;line-height:1.5;cursor:pointer}.ach141-message{position:relative;margin:0 0 22px;padding:19px 21px;border-radius:23px;overflow-wrap:anywhere}.ach141-user{background:var(--chat-soft);margin-left:12%;border:1px solid var(--chat-line)}.ach141-assistant{padding-left:4px;padding-right:4px}.ach141-speaker{font-size:12px;font-weight:800;letter-spacing:.04em;margin-bottom:9px;opacity:.8}.ach141-body{font-size:16px;line-height:1.75;overflow-wrap:anywhere}.ach141-heading{display:inline-block;margin:12px 0 3px;font-size:1.1em}.ach141-body code{font-size:.9em;background:var(--chat-soft);border-radius:5px;padding:2px 4px}.ach141-body pre{white-space:pre;max-width:100%;overflow:auto;padding:18px;border:1px solid var(--chat-line);border-radius:14px;background:var(--chat-soft)}.ach141-body pre code{padding:0;background:none}.ach141-copy{font:inherit;font-size:12px;background:transparent;color:inherit;border:1px solid var(--chat-line);border-radius:9px;padding:7px 11px;margin-top:10px;cursor:pointer}.ach141-sources{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px}.ach141-sources a{font-size:12px;background:var(--chat-soft);color:inherit;border:1px solid var(--chat-line);padding:7px 10px;border-radius:10px;text-decoration:none}.ach141-composer{border:1px solid var(--chat-line);border-radius:24px;padding:14px;background:var(--panel,#fff);box-shadow:0 5px 24px #123e3408}.ach141-composer textarea{border:0;box-shadow:none;background:transparent;color:inherit;padding:8px;width:100%;min-height:86px;resize:vertical;max-height:300px;font:inherit;font-size:16px;line-height:1.6;box-sizing:border-box}.ach141-composer textarea:focus{outline:2px solid #258d85;outline-offset:2px;border-radius:10px}.ach141-compose-actions{display:flex;gap:9px;align-items:center;flex-wrap:wrap;margin-top:8px}.ach141-upload{position:relative;cursor:pointer;display:inline-flex;align-items:center;overflow:hidden;margin:0}.ach141-upload input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%;height:100%}.ach141-keyhint{flex:1;font-size:11px;opacity:.65}.ach141-pending{background:var(--chat-soft);padding:18px;border-radius:20px;overflow-wrap:anywhere;margin-bottom:16px}.ach141-thinking{font-size:14px;opacity:.8}.ach141-settings{border-top:1px solid var(--chat-line);padding:15px 0;margin-top:20px;font-size:13px}.ach141-settings summary{cursor:pointer;font-weight:700}.ach141-settings p{font-size:12px;line-height:1.7;opacity:.8}.ach141-options{display:grid;gap:16px;margin-top:18px}.ach141-options input:not([type=checkbox]){width:100%;box-sizing:border-box}.ach141-check{display:flex;gap:9px;align-items:center;font-size:13px}.ach141-check input{width:18px;height:18px;flex-shrink:0;accent-color:#0d8076}.ach141 [hidden]{display:none!important}#ach141-status{font-size:13px;line-height:1.6;min-height:24px;margin:12px 5px;overflow-wrap:anywhere}#ach141-attachment{display:flex;gap:10px;align-items:center;padding:8px;margin-bottom:10px;border:1px solid var(--chat-line);border-radius:13px}#ach141-attachment img{width:60px;height:60px;object-fit:cover;border-radius:10px}#ach141-attachment span{flex:1;font-size:13px;overflow-wrap:anywhere}#ach141-attachment button{background:transparent;color:inherit;border:0;font-size:24px;padding:12px}.ach141 :focus-visible{outline:3px solid #258d85;outline-offset:3px}
:root[data-theme=dark] .ach141,body.dark .ach141{color:#e8f3ef;--chat-soft:#143e38;--chat-line:#56746d}:root[data-theme=dark] .ach141-composer,:root[data-theme=dark] .ach141-toolbar select,:root[data-theme=dark] .ach141-suggestions button{background:#152d28;color:#e8f3ef}:root[data-theme=dark] .ach141-welcome>span{color:#83d6c6}
@media(max-width:600px){.ach141{padding:4px 0 20px}.ach141-header{gap:10px;margin-bottom:12px}.ach141-header h1{font-size:26px}.ach141-header p{font-size:12px}.ach141-header>.button{font-size:12px;padding:10px}.ach141-avatar{width:44px;height:44px;border-radius:15px}.ach141-toolbar{gap:6px;flex-wrap:wrap}.ach141-toolbar .button{padding:9px;font-size:12px}.ach141-toolbar select{font-size:13px;min-width:80px}.ach141-welcome{padding:24px 0}.ach141-welcome h2{font-size:25px}.ach141-suggestions{gap:8px}.ach141-suggestions button{padding:13px;font-size:13px;border-radius:16px}.ach141-user{margin-left:5%;padding:15px}.ach141-body{font-size:16px}.ach141-keyhint{display:none}.ach141-compose-actions>#ach141-send{margin-left:auto}.ach141-composer{padding:10px;border-radius:21px}.ach141-options input{font-size:16px}.ach141-chat{padding:12px 0}}
@media(prefers-reduced-motion:reduce){.ach141 *{scroll-behavior:auto!important}}

.ach141 .sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}.ach141-toolbar #ach141-delete{flex:0 0 36px;min-width:36px;padding:7px}.ach141-toolbar #ach141-new{white-space:nowrap}.ach141-toolbar #ach141-export{white-space:nowrap}

/* AI142 optional web search */
.ach142-search-controls{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;padding:10px 4px;border-top:1px solid var(--chat-line)}.ach142-search-controls label{margin:0;font-size:14px}.ach142-search-controls span{font-size:12px;opacity:.85}#ach142-search-options{padding:12px 4px;display:grid;grid-template-columns:minmax(0,1fr) 145px;gap:10px}#ach142-search-options label{font-size:12px;min-width:0}#ach142-search-options input,#ach142-search-options select{width:100%;min-width:0;box-sizing:border-box;border:1px solid var(--chat-line);border-radius:12px;background:var(--chat-soft);color:inherit;padding:11px;font:inherit;font-size:16px}#ach142-search-options small{grid-column:1/-1;font-size:11px;line-height:1.65;opacity:.8}.ach142-search-summary{margin-top:14px;border:1px solid var(--chat-line);padding:12px;border-radius:14px;font-size:13px;overflow-wrap:anywhere}.ach142-search-summary summary{cursor:pointer;font-weight:700}.ach142-search-summary p{font-size:12px;line-height:1.7}.ach142-search-summary>a{display:block;color:inherit;margin-top:10px;padding:8px 0;text-decoration:underline}.ach142-search-summary small{display:block;font-size:11px;opacity:.8}.ach142-search-summary [hidden]{display:none!important}@media(max-width:480px){#ach142-search-options{grid-template-columns:minmax(0,1fr)}.ach142-search-controls{gap:8px}.ach142-search-controls span{font-size:11px}}

.ach142-search-controls input[type=checkbox]{box-sizing:border-box;min-height:18px!important;width:18px!important;height:18px!important;padding:0!important;margin:0;appearance:auto}