/* AI connection page layout only.
 *
 * Palette, reset, header and footer come from /styles.css, which this page
 * loads first. Every colour here is one of its tokens: nothing redeclares a
 * token and no colour is written by hand, so this page cannot drift into a
 * palette of its own. The sign-in sheet is the same markup as on the other
 * page that signs in, and is drawn the same way. */
button, input, select, textarea { font: inherit; }
[hidden] { display: none !important; }

button.header-cta { border: 0; cursor: pointer; }

.ai-shell { max-width: 860px; margin: 0 auto; padding: 40px 22px 74px; }
.ai-intro { max-width: 680px; margin-bottom: 28px; }
.ai-eyebrow { margin: 0 0 9px; color: var(--accent); font-size: 12px; font-weight: 800; letter-spacing: .1em; }
.ai-intro h1 { margin: 0; font-size: clamp(30px, 4vw, 44px); line-height: 1.18; letter-spacing: -.045em; }
.ai-intro > p { margin: 14px 0 0; color: var(--muted); font-size: 16px; }

.ai-step { margin-top: 18px; padding: 22px; border: 1px solid var(--line); border-radius: 20px;
  background: var(--card); box-shadow: var(--shadow-sm); }
.ai-step h2 { margin: 0 0 10px; font-size: 19px; letter-spacing: -.025em; }
.ai-step > p { margin: 0 0 12px; font-size: 15px; }
.ai-status { min-height: 0; margin: 10px 0 0 !important; color: var(--muted); font-size: 13px; }
.ai-status:empty { display: none; }
.ai-status.is-error { color: var(--accent); }
.ai-note { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.ai-hint { margin: 4px 0 0; color: var(--soft); font-size: 12px; }
.ai-label { display: block; margin: 0 0 6px; color: var(--ink-soft); font-size: 13px; font-weight: 700; }

.ai-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px;
  border: 1px solid var(--ink); border-radius: 12px; background: var(--ink); color: var(--card);
  font-size: 14px; font-weight: 700; cursor: pointer; white-space: nowrap; }
.ai-button:hover { background: var(--ink-soft); border-color: var(--ink-soft); }
.ai-button.secondary { background: var(--card); color: var(--ink); border-color: var(--line); }
.ai-button.secondary:hover { border-color: var(--soft); }
.ai-button.quiet { background: transparent; color: var(--accent); border-color: transparent; padding: 0 10px; }
.ai-button.quiet:hover { background: var(--accent-soft); }
.ai-button:disabled { cursor: not-allowed; opacity: .5; }

.ai-select, .ai-input { width: 100%; min-height: 44px; padding: 0 12px; border: 1px solid var(--line);
  border-radius: 11px; background: var(--card); color: var(--ink); }
textarea.ai-input { padding: 10px 12px; min-height: 120px; resize: vertical; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.ai-select:disabled { background: var(--sunken); color: var(--ink); }

.pill { display: inline-flex; align-items: center; padding: 2px 9px; border-radius: 999px; background: var(--sunken);
  color: var(--ink-soft); font-size: 11.5px; font-weight: 700; white-space: nowrap; }
.pill.is-ok { background: var(--positive-bg); color: var(--positive); }
.pill.is-warn { background: var(--warning-bg); color: var(--warning); }

.connection-list { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.connection-item { padding: 16px; border: 1px solid var(--line-soft); border-radius: 16px; background: var(--bg); }
.connection-item + .connection-item { margin-top: 0; }
.connection-head { display: flex; align-items: center; gap: 8px; }
.connection-head strong { font-size: 16px; }
.connection-meta { margin: 4px 0 0; color: var(--muted); font-size: 13px; overflow-wrap: anywhere; }
.connection-actions { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 8px; margin-top: 12px; }

.connect-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.connect-head h2 { margin: 0; }
.connect-body { margin-top: 8px; }
.connect-form { display: flex; flex-direction: column; gap: 12px; margin-top: 12px; }
.connect-form > .ai-button { align-self: flex-start; }
.connect-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.device-code { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 12px; padding: 14px 16px;
  border: 1px dashed var(--accent-border); border-radius: 14px; background: var(--accent-soft); }
.device-code-value { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 24px; font-weight: 700;
  letter-spacing: .12em; color: var(--ink); }

.provider-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 12px; }
.provider-card { display: flex; flex-direction: column; gap: 8px; padding: 16px; border: 1px solid var(--line-soft);
  border-radius: 16px; background: var(--bg); }
.provider-head { display: flex; align-items: center; gap: 8px; }
.provider-head strong { font-size: 16px; }
.provider-badges { display: flex; flex-wrap: wrap; gap: 6px; }
.provider-detail { margin: 0; color: var(--warning); font-size: 12.5px; }
.provider-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 4px; }
.provider-more { margin-top: 14px; }
.provider-more summary { min-height: 44px; display: flex; align-items: center; color: var(--ink-soft);
  font-size: 14px; font-weight: 700; cursor: pointer; }

.ai-shell .footer { margin-top: 40px; }

/* The sign-in sheet: the same markup and look on every page that signs in. */
.signin-sheet { position: fixed; inset: 0; z-index: 40; display: flex; align-items: center; justify-content: center;
  padding: 24px; background: rgba(26, 29, 33, .34); opacity: 0; transition: opacity .22s ease;
  -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px); }
.signin-sheet.is-open { opacity: 1; }
.signin-inner { position: relative; width: 100%; max-width: 400px; min-height: 480px; display: flex;
  flex-direction: column; align-items: center; justify-content: center; padding: 30px 26px 22px;
  border-radius: 22px; background: var(--bg); box-shadow: var(--shadow);
  transform: translateY(14px) scale(.985); transition: transform .26s cubic-bezier(.22, .61, .36, 1); }
.signin-sheet.is-open .signin-inner { transform: none; }
.sheet-close { position: absolute; top: 16px; left: 16px; width: 40px; height: 40px; display: inline-flex;
  align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: 50%;
  background: var(--card); cursor: pointer; }
.sheet-close svg { width: 16px; height: 16px; fill: none; stroke: var(--ink-soft); stroke-width: 2; stroke-linecap: round; }
.signin-body { width: 100%; display: flex; flex-direction: column; align-items: center; }
.signin-mark { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
  border-radius: 50%; background: var(--ink); }
.signin-mark svg { width: 26px; height: 26px; fill: none; stroke: var(--card); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.signin-body h2 { margin: 22px 0 30px; font-size: 21px; font-weight: 600; letter-spacing: -.01em; }
.doors { width: 100%; display: flex; flex-direction: column; gap: 9px; }
.door { width: 100%; min-height: 50px; border: 0; border-radius: 12px; background: var(--hairline);
  color: var(--ink); font-size: 15px; font-weight: 600; cursor: pointer; transition: background .14s ease; }
.door:hover { background: var(--line-soft); }
.otp-block { width: 100%; margin-top: 12px; display: flex; flex-direction: column; gap: 9px; }
.method-tabs { display: flex; gap: 6px; margin: 10px 0; }
.method-tabs button { flex: 1; min-height: 44px; padding: 0 10px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--card); color: var(--muted); font-size: 13px; font-weight: 700; cursor: pointer; }
.method-tabs button.is-selected { border-color: var(--ink); color: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
.signin-body form { width: 100%; margin-top: 10px; }
.form-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 7px; }
.form-row input { min-width: 0; min-height: 44px; padding: 0 11px; border: 1px solid var(--line); border-radius: 11px;
  background: var(--card); color: var(--ink); }
.form-row button { min-height: 44px; padding: 0 12px; border: 0; border-radius: 11px; background: var(--ink-soft);
  color: var(--card); font-size: 12px; font-weight: 750; cursor: pointer; }
.form-status, .social-status { min-height: 18px; margin: 8px 0 0; color: var(--muted); font-size: 12px; text-align: center; }
.form-status.is-error, .social-status.is-error { color: var(--accent); }
.legal { margin: 26px 0 0; max-width: 340px; color: var(--soft); font-size: 12px; line-height: 1.6; text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

@media (max-width: 700px) {
  .provider-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 560px) {
  .ai-shell { padding: 28px 16px 46px; }
  .ai-intro h1 { font-size: 28px; }
  .ai-intro > p { font-size: 14px; }
  .ai-step { padding: 18px 16px; border-radius: 18px; }
  .connection-actions { grid-template-columns: minmax(0, 1fr) auto; }
  .connection-actions .ai-select { grid-column: 1 / -1; }
  .device-code-value { font-size: 20px; }
}

@media (max-width: 900px) {
  .signin-sheet { padding: 0; }
  .signin-inner { max-width: none; min-height: 100%; border-radius: 0; justify-content: flex-start; padding-top: 84px; }
}

@media (prefers-reduced-motion: reduce) {
  .signin-sheet, .signin-inner, .door { transition: none; }
  .signin-inner { transform: none; }
}