/* BlogFlow AI — the site's reading-first white, charcoal and gray interface.
   Operate/read: scope above conversation, compact composer below; no decorative elevation. */
.bfai { --ai-ink:#20242b; --ai-muted:#565e69; --ai-line:#d6dbe1; --ai-paper:#fff; --ai-soft:#f4f5f7; color:var(--ai-ink); font:15px/1.7 system-ui,-apple-system,"Segoe UI",sans-serif; text-align:left; }
.bfai *, .bfai *::before, .bfai *::after { box-sizing:border-box; }
.bfai [hidden] { display:none!important; }
.bfai .bfai-sr-only { position:absolute; width:1px; height:1px; padding:0; overflow:hidden; clip-path:inset(50%); white-space:nowrap; }
.bfai button { min-height:44px; margin:0; padding:9px 14px; border:1px solid var(--ai-line); border-radius:0; background:var(--ai-paper); color:var(--ai-ink); font:inherit; font-size:14px; font-weight:500; line-height:1.5; cursor:pointer; box-shadow:none; text-transform:none; }
.bfai .bfai-launcher { position:fixed; right:24px; bottom:calc(24px + env(safe-area-inset-bottom)); z-index:99990; display:grid; place-items:center; width:56px; height:56px; padding:0; background:var(--ai-ink); color:#fff; border:0; }
.bfai .bfai-launcher img { display:block; width:56px; height:56px; max-width:none; margin:0; padding:0; border:0; border-radius:0; box-shadow:none; }
.bfai .bfai-panel { position:fixed; z-index:100001; right:24px; bottom:24px; display:flex; flex-direction:column; width:500px; max-width:calc(100vw - 48px); height:min(840px,calc(var(--bfai-height,100dvh) - 80px)); border:1px solid var(--ai-line); background:var(--ai-paper); overflow:hidden; }
.bfai .bfai-header { display:flex; flex:none; align-items:center; gap:4px; padding:16px 20px 8px; }
.bfai h2 { flex:1; margin:0; padding:0; border:0; color:var(--ai-ink); font:inherit; font-size:20px; line-height:1.4; font-weight:700; }
.bfai .bfai-header button { flex:none; min-height:44px; padding:8px; border:0; background:transparent; color:var(--ai-muted); font-size:12px; }
.bfai .bfai-brand { flex:1; min-width:0; }
.bfai #bfai-context { margin:3px 0 0; font-size:12px; color:var(--ai-muted); }
.bfai .bfai-header .bfai-close { width:44px; display:grid; place-items:center; }
.bfai svg { display:block; flex:none; }
.bfai .bfai-scopes { display:flex; flex:none; gap:4px; margin:0 20px 4px; padding:0; background:transparent; }
.bfai .bfai-scopes button { flex:1; min-width:0; min-height:44px; padding:8px 4px; border:0; background:transparent; color:var(--ai-muted); font-size:13px; }
.bfai .bfai-scopes button[aria-pressed=true] { color:var(--ai-ink); background:#eceef1; font-weight:700; }
.bfai .bfai-log { flex:1 1 auto; min-height:0; overflow:auto; overscroll-behavior:contain; padding:20px 24px; scrollbar-color:#a4aab3 var(--ai-soft); scrollbar-width:thin; }
.bfai p { margin:0; }
.bfai .bfai-welcome { padding:4px 0 24px; }
.bfai .bfai-welcome h3 { margin:0 0 12px; padding:0; border:0; font:inherit; font-size:22px; font-weight:500; line-height:1.5; color:var(--ai-ink); }
.bfai .bfai-intro { max-width:38ch; margin:0 0 20px; color:var(--ai-muted); font-size:14px; line-height:1.8; word-break:keep-all; overflow-wrap:anywhere; }
.bfai .bfai-message { margin:0 0 28px; padding:0; border:0; background:transparent; }
.bfai .bfai-message-user { margin-left:32px; padding:12px 16px; background:var(--ai-soft); }
.bfai .bfai-speaker { margin:0 0 8px; color:var(--ai-muted); font-size:12px; font-weight:500; }
.bfai .bfai-answer,.bfai .bfai-question-text { white-space:pre-wrap; overflow-wrap:anywhere; font-size:15px; line-height:1.9; }
.bfai .bfai-question-text { font-size:14px; line-height:1.7; }
.bfai h4 { margin:22px 0 6px; padding:0; border:0; font:inherit; font-size:13px; line-height:1.5; font-weight:700; }
.bfai ul { margin:0; padding:0; list-style:none; }
.bfai li { margin:0; padding:5px 0; font-size:13px; overflow-wrap:anywhere; }
.bfai a { color:var(--ai-ink); text-decoration:underline; text-underline-offset:4px; text-decoration-thickness:1px; }
.bfai .bfai-form { flex:0 0 auto; min-height:0; max-height:57%; overflow:auto; overscroll-behavior:contain; padding:14px 20px 12px; background:var(--ai-soft); scrollbar-color:#a4aab3 var(--ai-soft); scrollbar-width:thin; }
.bfai .bfai-shortcuts { display:flex; flex-direction:column; gap:8px; margin:0; }
.bfai .bfai-shortcuts button { min-height:68px; padding:12px 16px; text-align:left; border:0; font-size:14px; background:var(--ai-soft); }
.bfai .bfai-shortcuts button > span { font-weight:600; }
.bfai .bfai-shortcuts small { display:block; margin-top:3px; color:var(--ai-muted); font-size:12px; line-height:1.6; font-weight:400; }
.bfai label { display:block; margin:0 0 6px; font-size:12px; font-weight:500; }
.bfai .bfai-composer { display:flex; align-items:center; gap:4px; padding:5px; border:1px solid #9ca4af; background:var(--ai-paper); }
.bfai textarea { display:block; width:100%; min-width:0; resize:vertical; min-height:68px; max-height:160px; margin:0; padding:10px 12px; border:1px solid #9ca4af; border-radius:0; background:#fff; color:var(--ai-ink); font:inherit; font-size:16px; line-height:1.6; box-shadow:none; caret-color:var(--ai-ink); }
.bfai textarea::placeholder { color:#626b76; opacity:1; }
.bfai .bfai-composer textarea { flex:1; min-height:60px; padding:8px; border:0; }
.bfai .bfai-composer button { position:relative; isolation:isolate; display:grid; place-items:center; flex:0 0 44px; height:44px; padding:8px; background:transparent; color:#fff; border:0; }
.bfai .bfai-composer button::before { content:""; position:absolute; inset:4px; z-index:-1; background:var(--ai-ink); pointer-events:none; }
/* A 36px visual send surface sits within its unchanged 44px touch target. */
.bfai select { display:block; width:100%; min-height:42px; margin:0 0 10px; padding:8px; border:1px solid #9ca4af; border-radius:0; background:#fff; color:var(--ai-ink); font:inherit; font-size:14px; box-shadow:none; }
.bfai .bfai-note { margin:6px 0 8px; color:var(--ai-muted); font-size:12px; line-height:1.7; overflow-wrap:anywhere; }
.bfai #bfai-notice { display:flex; flex-wrap:wrap; justify-content:space-between; gap:2px 12px; margin:8px 0 4px; word-break:keep-all; }
.bfai .bfai-length-note { white-space:nowrap; }
.bfai .bfai-scope-note { margin:0 0 10px; }
.bfai .bfai-consent { display:flex; align-items:flex-start; gap:8px; margin:8px 0; font-size:12px; line-height:1.7; color:var(--ai-muted); }
.bfai .bfai-consent input { flex:none; width:16px; height:16px; margin:2px 0 0; accent-color:var(--ai-ink); }
.bfai .bfai-privacy { margin:0; color:var(--ai-muted); font-size:12px; }
.bfai summary { cursor:pointer; padding:5px 0; min-height:30px; }
.bfai .bfai-privacy .bfai-note { margin:8px 0; }
.bfai .bfai-disclaimer { color:var(--ai-muted); font-size:11px; line-height:1.7; margin:4px 0 0; }
.bfai .bfai-code-fields { margin:0 0 12px; border:1px solid var(--ai-line); background:#fff; }
.bfai .bfai-code-fields summary { min-height:42px; padding:10px 12px; font-size:13px; color:var(--ai-ink); }
.bfai .bfai-code-hint { margin-left:8px; font-size:11px; color:var(--ai-muted); }
.bfai .bfai-code-body { padding:0 12px 4px; }
.bfai .bfai-code-body textarea { height:120px; min-height:96px; max-height:240px; font-family:Consolas,"SFMono-Regular",monospace; font-size:13px; line-height:1.7; white-space:pre; tab-size:2; }
.bfai .bfai-quiz { min-width:0; margin:22px 0; padding:12px; border:1px solid var(--ai-line); }
.bfai .bfai-quiz legend { padding:0 5px; color:var(--ai-ink); font-size:14px; font-weight:500; line-height:1.7; overflow-wrap:anywhere; }
.bfai .bfai-quiz button { display:block; width:100%; margin:6px 0; padding:10px; text-align:left; background:var(--ai-soft); border-color:var(--ai-soft); font-size:13px; overflow-wrap:anywhere; }
.bfai .bfai-quiz button:disabled { cursor:default; opacity:1; color:var(--ai-muted); }
.bfai .bfai-quiz button[data-correct=true] { background:var(--ai-ink); border-color:var(--ai-ink); color:#fff; }
.bfai .bfai-quiz p { margin-top:10px; font-size:13px; line-height:1.8; overflow-wrap:anywhere; }
.bfai .bfai-status { margin:0 0 10px; font-size:12px; line-height:1.7; color:var(--ai-ink); overflow-wrap:anywhere; }
.bfai .bfai-status:empty { display:none; }
.bfai .bfai-selection { position:fixed; z-index:100002; display:flex; flex-wrap:wrap; gap:4px; padding:4px; max-width:calc(100vw - 16px); border:1px solid #9ca4af; background:#fff; }
.bfai .bfai-selection button { min-height:40px; padding:8px 10px; border:0; font-size:12px; background:var(--ai-soft); }
.bfai :focus-visible { outline:2px solid #20242b; outline-offset:2px; }
.bfai button:disabled { opacity:.55; cursor:wait; }
.bfai ::selection { color:#fff; background:#404854; }
@media(min-width:1500px) { body.bfai-wide-open { padding-right:548px; } }
/* The actual welcome node controls compact desktop sizing. Removing it for an
   answer/quiz restores the established conversation height; reset restores it.
   Explicit form bounds keep long code and expanded consent reachable on short screens. */
@media(min-width:701px) {
 .bfai .bfai-panel:has(.bfai-welcome) { height:auto; max-height:min(840px,calc(var(--bfai-height,100dvh) - 80px)); }
 .bfai .bfai-panel:has(.bfai-welcome) .bfai-log { flex:0 1 auto; padding-bottom:16px; }
 .bfai .bfai-panel:has(.bfai-welcome) .bfai-welcome { padding-bottom:0; }
 .bfai .bfai-panel:has(.bfai-welcome) .bfai-form { max-height:min(478px,calc(var(--bfai-height,100dvh) * .57 - 45.6px)); }
}
@media(max-width:700px) {
 body.bfai-mobile-open { overflow:hidden; }
 .bfai .bfai-panel { top:var(--bfai-top,0px); right:0; bottom:auto; width:100%; max-width:100%; height:var(--bfai-height,100dvh); border:0; padding-top:env(safe-area-inset-top); padding-bottom:env(safe-area-inset-bottom); }
 .bfai .bfai-launcher { right:16px; bottom:calc(16px + env(safe-area-inset-bottom)); }
 .bfai .bfai-header { padding:12px 16px 8px; }
 .bfai .bfai-scopes { margin:0 16px 8px; }
 .bfai .bfai-log { padding:18px 16px; }
 .bfai .bfai-form { padding:12px 16px 8px; }
}
@media(max-height:480px) {
 .bfai .bfai-header { padding-top:4px; padding-bottom:4px; }
 .bfai .bfai-scopes { margin-bottom:4px; }
 .bfai .bfai-form { max-height:54%; }
 .bfai .bfai-log { padding-top:10px; padding-bottom:10px; }
}
/* Public entry points reuse the site's square charcoal controls. Search remains a native form. */
.bfai-home-search { display:flex; flex-wrap:wrap; align-items:center; gap:12px; margin:0 0 24px; }
.bf-home-intro .bfai-home-search .search-form { margin:0; max-width:100%; }
.bf-home-intro .bfai-home-search .search-form { display:grid; grid-template-columns:minmax(0,1fr) 44px; border:0; background:transparent; }
.bf-home-intro .bfai-home-search .search-form > label:not(.bfai-search-choice) { border:1px solid var(--bf-line,#d6dbe1); }
.bf-home-intro .bfai-home-search .search-submit { border:1px solid var(--bf-line,#d6dbe1); }
.bf-home-intro .bfai-home-search .search-form .bfai-search-choice { grid-column:1 / -1; display:flex; align-items:center; gap:8px; min-height:44px; font-size:13px; font-weight:500; color:#565e69; cursor:pointer; }
.bfai-search-choice input { margin:0; accent-color:#20242b; }
.bf-home-intro .bfai-home-search { margin:20px 0 24px; }
.bf-home-intro .bfai-home-search .search-form { row-gap:4px; }
.bf-home-intro .bfai-home-search { width:100%; max-width:620px; }
.bf-home-intro .bfai-home-search .search-form { width:100%; }
.bf-home-intro .bfai-home-search .search-field { display:block; width:100%; max-width:100%; box-sizing:border-box; }
.bf-home-intro .bfai-home-search .bfai-home-consent { grid-column:1 / -1; padding:12px; border:1px solid #d6dbe1; background:#f4f5f7; }
.bf-home-intro .bfai-home-search .bfai-home-consent[hidden] { display:none; }
.bf-home-intro .bfai-home-search .bfai-home-consent label { display:flex; align-items:flex-start; gap:8px; font-size:13px; font-weight:500; line-height:1.7; }
.bfai-home-consent input { flex:none; margin:5px 0 0; accent-color:#20242b; }
.bf-home-intro .bfai-home-search .bfai-home-consent p { margin:8px 0 0; font-size:12px; line-height:1.8; color:#565e69; }
.bfai-home-consent .bfai-home-status:empty { display:none; }
.bfai-entry { display:inline-flex; align-items:center; justify-content:center; min-height:44px; padding:8px 16px; border:1px solid #20242b; background:#20242b; color:#fff; font-size:14px; font-weight:500; line-height:1.5; font-family:inherit; cursor:pointer; box-shadow:none; border-radius:0; }
.bfai-entry[hidden] { display:none; }
.bfai-entry:focus-visible { outline:2px solid #20242b; outline-offset:3px; }
/* In mobile code welcome only, give the unused reading space to the input form.
   Once an answer replaces the welcome node, normal conversation sizing returns. */
@media(max-width:700px) {
 .bfai .bfai-panel:has(.bfai-welcome):has([data-scope="code"][aria-pressed="true"]) .bfai-log { flex:0 1 auto; padding-bottom:12px; }
 .bfai .bfai-panel:has(.bfai-welcome):has([data-scope="code"][aria-pressed="true"]) .bfai-welcome { padding-bottom:0; }
 .bfai .bfai-panel:has(.bfai-welcome):has([data-scope="code"][aria-pressed="true"]) .bfai-intro { margin-bottom:0; }
 .bfai .bfai-panel:has(.bfai-welcome):has([data-scope="code"][aria-pressed="true"]) .bfai-form { flex:1 1 auto; max-height:none; }
}