/* SEO page, AI SEO example (Evan 2026-10-01): a running chat where Your Business is the top pick. The header is a
   real dropdown: ChatGPT, Claude, Gemini, Grok or Perplexity re-skins the chat to that product's look (layout,
   colors, fonts, composer; wordmarks as text, no logos). Every look is a set of variables under [data-ai].
   Brand colors are kept true here, including Claude's orange (Evan 2026-10-01: an exception to the no-orange rule,
   like the Google colors in the hero).
   js/seo-ai.js: data-ai on .sai, data-step 0..4 on each round (.sai-x). */
.sai { --bg: #fff; --ink: #0d0d0d; --muted: #8f8f8f; --soft: #5d5d5d; --line: #e5e5e5;
  --ubub: #f4f4f4; --ubub-ink: #0d0d0d; --ubub-r: 18px;
  --comp-bg: #fff; --comp-line: #e5e5e5; --comp-r: 28px; --comp-shadow: 0 4px 16px rgba(0,0,0,.06);
  --send: #0d0d0d; --send-ink: #fff; --send-off: #d7d7d7;
  --acc: #10a37f; --acc-ink: #fff; --acc-tint: #effaf6; --card: #f7f7f7; --card-ink: #8f8f8f; --card-soft: #a3a3a3;
  --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue", Arial, sans-serif; --ans-font: var(--font);
  position: relative; display: flex; flex-direction: column; margin: 0; height: 600px; border: 1px solid var(--line); border-radius: 18px;
  background: var(--bg); overflow: hidden; font: 15px/1.6 var(--font); color: var(--ink); transition: background .4s, color .4s, border-color .4s; }
.sai[data-ai="claude"] { --bg: #faf9f5; --ink: #141413; --muted: #8a8780; --soft: #5e5b52; --line: #e8e5dc;
  --ubub: #f0eee6; --ubub-ink: #141413; --ubub-r: 14px;
  --comp-bg: #fff; --comp-line: #e2ded3; --comp-r: 14px; --comp-shadow: 0 2px 8px rgba(20,20,19,.05);
  --send: #c96442; --send-off: #e5c9bd; --acc: #c96442; --acc-tint: #fbf1ec; --card: #f0eee6; --card-ink: #8a8780; --card-soft: #a5a299;
  --ans-font: Georgia, "Times New Roman", serif; }
.sai[data-ai="gemini"] { --ink: #1f1f1f; --muted: #747775; --soft: #444746; --line: #e3e3e3;
  --ubub: #e9eef6; --ubub-ink: #1f1f1f; --ubub-r: 24px 4px 24px 24px;
  --comp-bg: #f0f4f9; --comp-line: #f0f4f9; --comp-r: 32px; --comp-shadow: 0 2px 8px -2px rgba(0,0,0,.16);
  --send: #0b57d0; --send-off: #c4c7c5; --acc: #0b57d0; --acc-tint: #eef3fd; --card: #f0f4f9; --card-ink: #747775; --card-soft: #8e918f;
  --font: "Google Sans", Arial, sans-serif; }
.sai[data-ai="grok"] { --bg: #131211; --ink: #fcfcfc; --muted: #8d8b87; --soft: #b8b5b0; --line: #2a2927;
  --ubub: #2a2927; --ubub-ink: #fcfcfc; --ubub-r: 22px;
  --comp-bg: #201f1d; --comp-line: rgba(252,252,252,.08); --comp-r: 24px; --comp-shadow: none;
  --send: #fcfcfc; --send-ink: #131211; --send-off: #3a3936; --acc: #fcfcfc; --acc-ink: #131211; --acc-tint: #1c1b19;
  --card: #1c1b19; --card-ink: #6f6f6f; --card-soft: #5c5c5c; }
.sai[data-ai="perplexity"] { --bg: #fcfcf9; --ink: #13343b; --muted: #8a9a9c; --soft: #4b6066; --line: #e5e5df;
  --ubub: transparent; --ubub-ink: #13343b; --ubub-r: 0;
  --comp-bg: #fff; --comp-line: #dfdfd8; --comp-r: 16px; --comp-shadow: 0 1px 4px rgba(19,52,59,.06);
  --send: #20808d; --send-off: #cfd6d6; --acc: #20808d; --acc-tint: #ecf6f6; --card: #f3f3ee; --card-ink: #8a9a9c; --card-soft: #a3afb0; }

.sai figcaption { position: absolute; top: 15px; right: 14px; margin: 0; z-index: 4; } /* look: .ex-badge rule in the shared CSS */
.sai[data-ai="grok"] figcaption { background: #fff; color: #000; }
.sai-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Header: the AI picker */
.sai-bar { position: relative; z-index: 5; padding: 10px 10px 6px; }
.sai-pick { display: inline-flex; align-items: center; gap: 4px; padding: 6px 10px; border: 0; border-radius: 10px; background: transparent; color: var(--ink);
  font: 500 17px/1.2 var(--font); cursor: pointer; transition: background .2s; }
.sai-pick:hover, .sai-pick[aria-expanded="true"] { background: color-mix(in srgb, var(--ink) 7%, transparent); }
.sai-pick:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }
.sai-pick svg { width: 16px; height: 16px; color: var(--muted); transition: transform .2s; }
.sai-pick[aria-expanded="true"] svg { transform: rotate(180deg); }
.sai-menu { position: absolute; top: 46px; left: 10px; min-width: 210px; margin: 0; padding: 6px; list-style: none; border-radius: 14px; background: #fff; color: #0d0d0d;
  box-shadow: 0 12px 32px rgba(0,0,0,.16), 0 0 0 1px rgba(0,0,0,.06); }
.sai-menu[hidden] { display: none; }
.sai-menu button { display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 12px; border: 0; border-radius: 9px;
  background: none; color: inherit; font: 400 15px/1.3 ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif; text-align: left; cursor: pointer; }
.sai-menu button:hover, .sai-menu button:focus-visible { background: #f2f2f2; outline: none; }
.sai-menu button[aria-checked="true"]::after { content: ""; width: 7px; height: 12px; margin-right: 3px; border: solid #0d0d0d; border-width: 0 2px 2px 0; transform: rotate(45deg) translate(-2px, -2px); }

/* Thread */
.sai-body { flex: 1; min-height: 0; overflow: hidden; padding: 6px 20px 8px;
  -webkit-mask-image: linear-gradient(transparent, #000 28px); mask-image: linear-gradient(transparent, #000 28px); }
.sai-x { padding-bottom: 26px; }
.sai-q { margin: 0 0 18px auto; width: fit-content; max-width: 80%; padding: 9px 16px; border-radius: var(--ubub-r); background: var(--ubub); color: var(--ubub-ink);
  opacity: 0; transform: translateY(18px) scale(.97); transform-origin: 100% 100%; transition: opacity .3s, transform .45s cubic-bezier(.22,1,.36,1); }
.sai[data-ai="claude"] .sai-q { font-family: var(--ans-font); }
.sai[data-ai="perplexity"] .sai-q { margin: 4px 0 14px; max-width: none; padding: 0; font-size: 23px; line-height: 1.3; transform-origin: 0 100%; }
.sai-x:not([data-step="0"]) .sai-q { opacity: 1; transform: none; }
.sai-search { display: none; font-size: 15px; background: linear-gradient(90deg, var(--muted) 0%, var(--muted) 40%, var(--ink) 50%, var(--muted) 60%, var(--muted) 100%) 0 0 / 300% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent; animation: sai-shimmer 1.4s linear infinite; }
@keyframes sai-shimmer { from { background-position: 100% 0; } to { background-position: 0 0; } }
.sai-x[data-step="1"] .sai-search { display: block; }
.sai-a { display: none; font-family: var(--ans-font); }
.sai-x[data-step="2"] .sai-a, .sai-x[data-step="3"] .sai-a, .sai-x[data-step="4"] .sai-a { display: block; }
.sai[data-ai="perplexity"] .sai-a::before { content: "Answer"; display: block; margin-bottom: 6px; font: 500 14px/1.4 var(--font); color: var(--ink); }
.sai-lead { margin: 0 0 14px; font-size: 15.5px; line-height: 1.6; }

/* Answer cards: Your Business is the big top pick, the others small and grey */
.sai-cards { display: grid; gap: 8px; margin: 0 0 14px; font-family: var(--font); }
.sai-card { position: relative; padding: 10px 14px; border-radius: 14px; background: var(--card); opacity: 0; transform: translateY(8px); transition: opacity .35s, transform .5s cubic-bezier(.22,1,.36,1), box-shadow .6s, background .4s; }
.sai-card.in { opacity: 1; transform: none; }
.sai-card .sai-nm { font-size: 15px; font-weight: 500; color: var(--card-ink); }
.sai-card .sai-meta { font-size: 13px; color: var(--card-soft); }
.sai-card.you { padding: 16px 18px; border: 1.5px solid var(--acc); background: var(--acc-tint); transform: translateY(10px) scale(.96); }
.sai-card.you.in { transform: none; }
.sai-card.you.hl { box-shadow: 0 18px 40px color-mix(in srgb, var(--acc) 18%, transparent); }
.sai-card.you .sai-nm { font-size: 20px; line-height: 1.25; color: var(--ink); margin: 8px 0 4px; }
.sai-card.you .sai-meta { font-size: 13.5px; color: var(--soft); }
.sai-card.you .st { color: #fbbc04; letter-spacing: 1px; }
.sai-card.you p { margin: 8px 0 10px; font-size: 14.5px; line-height: 1.55; color: var(--soft); }
.sai-rec { display: inline-block; padding: 3px 10px; border-radius: 999px; background: var(--acc); color: var(--acc-ink); font-size: 11.5px; letter-spacing: .04em; }
.sai-card.you::after { content: ""; position: absolute; inset: -1.5px; border-radius: 15px; box-shadow: 0 0 0 2px var(--acc); opacity: 0; pointer-events: none; }
.sai-card.you.hl::after { animation: sai-ring .9s ease-out; }
@keyframes sai-ring { from { opacity: .9; inset: -1.5px; } to { opacity: 0; inset: -12px; border-radius: 24px; } }
.sai-cite { display: inline-block; padding: 1px 10px; border-radius: 999px; background: color-mix(in srgb, var(--ink) 6%, transparent); color: var(--soft); font-size: 12px; line-height: 20px;
  opacity: 0; transform: scale(.7); transition: opacity .3s, transform .35s cubic-bezier(.3,1.6,.5,1), background .3s, color .3s; }
.sai-x[data-step="3"] .sai-cite, .sai-x[data-step="4"] .sai-cite { opacity: 1; transform: none; background: var(--acc); color: var(--acc-ink); }
.sai-foot { display: flex; align-items: center; gap: 14px; opacity: 0; transition: opacity .4s; font-family: var(--font); }
.sai-x[data-step="4"] .sai-foot { opacity: 1; }
.sai-acts { display: flex; gap: 12px; color: var(--muted); }
.sai-acts svg { width: 17px; height: 17px; }
.sai-src { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px 3px 4px; border: 1px solid var(--line); border-radius: 999px; font-size: 13px; color: var(--soft); }
.sai-src i { width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid var(--bg); display: grid; place-items: center; font-size: 9px; font-style: normal; color: #fff; background: #1a73e8; }
.sai-src i + i { margin-left: -9px; background: var(--acc); color: var(--acc-ink); }

/* Composer */
.sai-in { margin: 0 14px 6px; padding: 10px 10px 10px 12px; border: 1px solid var(--comp-line); border-radius: var(--comp-r); background: var(--comp-bg); box-shadow: var(--comp-shadow);
  display: flex; align-items: center; gap: 10px; transition: background .4s, border-color .4s, border-radius .4s; }
.sai-in > svg { flex: none; width: 20px; height: 20px; color: var(--soft); }
.sai-field { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 15px; color: var(--ink); }
.sai-ph { color: var(--muted); }
.sai-field.has .sai-ph { display: none; }
.sai-caret { display: inline-block; width: 1px; height: 17px; vertical-align: -3px; background: var(--ink); animation: sai-blink 1s steps(1) infinite; }
.sai-field:not(.has) .sai-caret { display: none; }
@keyframes sai-blink { 50% { opacity: 0; } }
.sai-send { flex: none; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--send-off); color: var(--send-ink); transition: background .2s, transform .15s; }
.sai[data-ai="perplexity"] .sai-send, .sai[data-ai="claude"] .sai-send { border-radius: 10px; }
.sai-send svg { width: 16px; height: 16px; }
.sai-in.ready .sai-send { background: var(--send); }
.sai-in.press .sai-send { transform: scale(.86); }
.sai-note { margin: 0 0 10px; text-align: center; font-size: 11px; color: var(--muted); }

@media (max-width: 479px) { .sai-body { padding: 6px 14px 8px; } }
@media (prefers-reduced-motion: reduce) { .sai, .sai * { transition: none !important; animation: none !important; } }

/* Brand marks next to each name, in their real colors: ChatGPT, Claude and Perplexity shapes from Simple Icons,
   Gemini's sparkle from gstatic, Grok's mark from grok.com's own icon. */

.sai-logo { display: inline-grid; place-items: center; width: 22px; height: 22px; flex: none; color: var(--ink); }
.sai-logo svg { width: 20px; height: 20px; }
.sai-pick { gap: 8px; }
.sai-mi { display: inline-flex; align-items: center; gap: 10px; }
.sai-menu .sai-logo { color: #0d0d0d; }
.sai-pick .sai-logo, .sai-pick-l { transition: opacity .25s; }
.sai.swap .sai-pick .sai-logo, .sai.swap .sai-pick-l { opacity: 0; }
.sai-pick .sai-logo svg { width: 20px; height: 20px; color: var(--ink); transform: none; }   /* not the chevron rule */