.header-files{margin-left:auto;margin-right:8px;position:relative}
.header-files>summary{display:flex;align-items:center;justify-content:center;width:44px;height:44px;font-size:26px;border:1px solid var(--border);border-radius:12px;cursor:pointer;list-style:none}
.header-files>summary::-webkit-details-marker{display:none}
.header-files>summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.header-file-panel{position:absolute;top:52px;right:0;z-index:25;width:230px;max-width:calc(100vw - 140px);padding:8px;background:var(--bg);border:1px solid var(--border);border-radius:14px;box-shadow:0 8px 24px #0002}
.header-files:not([open])>.header-file-panel{display:none}
.header-files #attach{width:100%;height:auto;min-height:44px;font-size:14px;text-align:left;padding:10px;border-radius:8px;line-height:1.4}
.header-files #saved-file{width:100%;max-width:100%;min-height:44px;font-size:13px}
.header-files #saved-file[hidden]{display:none!important}
.header-file-panel{max-height:60dvh;overflow:auto}
.header-file-panel .file-help{margin:8px 4px 0;padding-top:8px;border-top:1px solid var(--border);max-height:none;overflow:visible;font-size:12px}
.header-file-panel .file-help summary{min-height:44px;display:flex;align-items:center;cursor:pointer}
.header-file-panel .file-help p{line-height:1.5}
.account-settings.account-avatar{display:flex;align-items:center;justify-content:center;background:transparent;color:var(--muted);border:1px solid var(--border);text-decoration:none;font-size:23px;min-width:44px;min-height:44px;border-radius:12px}
.account-settings.account-avatar:hover{background:var(--hover);color:var(--text)}
.account-settings.account-avatar:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.answer-actions,.answer-ratings{display:flex;align-items:center;gap:4px;flex-wrap:wrap}
.answer-actions{margin-top:10px;color:var(--muted)}
.answer-actions .copy,.answer-ratings button{display:inline-flex;align-items:center;justify-content:center;min-width:36px;min-height:36px;width:36px;height:36px;padding:0;margin:0;border:0;border-radius:8px;background:transparent;box-shadow:none;color:var(--muted);font-size:0;cursor:pointer}
.answer-actions .copy::before{content:'⧉';font-size:20px;line-height:1}
.answer-ratings .rating-up::before{content:'👍';font-size:15px;filter:grayscale(1);opacity:.65}
.answer-ratings .rating-down::before{content:'👎';font-size:15px;filter:grayscale(1);opacity:.65}
.answer-actions .copy[data-copy-state='copied']::before{content:'✓'}
.answer-actions .copy[data-copy-state='failed']{width:auto;padding:0 8px;font-size:12px}
.answer-actions .copy[data-copy-state='failed']::before{content:none}
.answer-actions .copy:hover:not(:disabled),.answer-ratings button:hover:not(:disabled){background:var(--hover);color:var(--text);box-shadow:none}
.answer-actions button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.answer-ratings small{font-size:12px;line-height:1.5}
@media(pointer:coarse){.answer-actions .copy,.answer-ratings button{min-width:44px;min-height:44px;width:44px;height:44px}}
header #preferences{margin-left:0}
#preferences>div{max-width:calc(100vw - 32px);max-height:65dvh;overflow:auto}
#preferences .web-toggle{justify-content:flex-start;min-height:44px;font-size:13px}
#preferences #saved-file{width:100%;max-width:100%;min-height:44px;margin-bottom:8px}
#preferences #saved-file[hidden]{display:none!important}
#preferences .file-help{margin:8px 0 0;max-height:none;overflow:visible}
#preferences #toolbox{margin:12px 0 0;padding-top:10px;border-top:1px solid var(--border)}
#preferences #toolbox summary{border:0;padding:8px 0;min-height:36px}
#preferences #toolbox[open]>div{position:static;max-width:100%;padding:4px 0;border:0;background:transparent;box-shadow:none}
#preferences #action-tools button{display:block;width:100%;min-height:44px;text-align:left;margin:2px 0}
#form.single-composer{display:flex;align-items:flex-end;gap:8px;padding:8px;border:1px solid var(--border);border-radius:24px;box-shadow:none}
#form.single-composer #input{flex:1;min-width:0;width:auto;min-height:44px;padding:10px 8px;font-size:16px;line-height:1.5}
#form.single-composer .composer-tools{flex:0 0 auto;align-self:flex-end}
#form.single-composer .tools-left{display:none}
#form.single-composer #send{width:44px;height:44px;min-width:44px;min-height:44px;font-size:25px}
@media(max-width:700px){
 header{gap:4px}
 .header-files{margin-right:2px}
 #preferences summary{padding:10px 8px}
 .header-left{flex-shrink:1}
 #form.single-composer{padding:5px;gap:4px}
}