/* Connect landing page (W-083, C.16). Self-contained: system font stack, no
   external fonts, no JS. Light/dark via prefers-color-scheme; WCAG AA
   contrast in both; focus-visible rings; reduced-motion respected. */

:root {
  --bg: #f5f6f8;
  --bg-accent: radial-gradient(1200px 600px at 80% -10%, #e8edff 0%, transparent 60%),
               radial-gradient(900px 500px at -10% 110%, #eaf7f0 0%, transparent 55%);
  --surface: #ffffff;
  --ink: #16181d;
  --ink-2: #4b5160;
  --line: #e3e5ea;
  --accent: #2f5df5;
  --accent-ink: #ffffff;
  --accent-soft: #eef2ff;
  --mono-bg: #16181d;
  --mono-ink: #ffffff;
  --shadow: 0 1px 2px rgba(20, 22, 28, .05), 0 12px 40px rgba(20, 22, 28, .08);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1013;
    --bg-accent: radial-gradient(1200px 600px at 80% -10%, #17203a 0%, transparent 60%),
                 radial-gradient(900px 500px at -10% 110%, #12211a 0%, transparent 55%);
    --surface: #17191e;
    --ink: #f2f3f5;
    --ink-2: #a9afbd;
    --line: #262931;
    --accent: #7c9bff;
    --accent-ink: #0e1013;
    --accent-soft: #1b2340;
    --mono-bg: #f2f3f5;
    --mono-ink: #16181d;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 12px 40px rgba(0, 0, 0, .5);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg-accent), var(--bg);
  color: var(--ink);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

header.site {
  display: flex;
  align-items: center;
  padding: 20px clamp(20px, 5vw, 48px);
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.01em;
}
.wordmark em { font-style: normal; font-weight: 400; color: var(--ink-2); }

main {
  flex: 1;
  width: min(640px, calc(100% - 40px));
  margin: clamp(12px, 4vh, 48px) auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: clamp(24px, 5vw, 40px);
}

h1 {
  margin: 0 0 4px;
  font-size: clamp(24px, 4.5vw, 30px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.sub { margin: 6px 0 0; color: var(--ink-2); }
.sub + .sub { margin-top: 12px; }

.brand-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 8px;
}

.brand-logo {
  width: 72px; height: 72px;
  border-radius: 18px;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--surface);
  flex: none;
}

.brand-monogram {
  width: 72px; height: 72px;
  border-radius: 18px;
  background: var(--mono-bg);
  color: var(--mono-ink);
  display: grid;
  place-items: center;
  font-size: 32px;
  font-weight: 700;
  flex: none;
}

.idrow {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  align-items: baseline;
  margin: 20px 0 0;
  padding: 14px 16px;
  background: var(--accent-soft);
  border-radius: 12px;
}
.idrow dt { font-size: 13px; color: var(--ink-2); margin: 0; }
.idrow dd { margin: 0; }
.idrow code {
  font: 13px/1.4 ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  overflow-wrap: anywhere;
}

.steps {
  margin: 24px 0 0;
  padding: 0 0 0 0;
  list-style: none;
  counter-reset: step;
  display: grid;
  gap: 12px;
}
.steps li {
  counter-increment: step;
  display: flex;
  gap: 14px;
  align-items: baseline;
  color: var(--ink-2);
}
.steps li strong { color: var(--ink); }
.steps li::before {
  content: counter(step);
  flex: none;
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  display: grid;
  place-items: center;
  transform: translateY(4px);
}

.cta {
  display: inline-block;
  margin-top: 28px;
  padding: 12px 24px;
  border-radius: 12px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  text-decoration: none;
  transition: transform .12s ease, filter .12s ease;
}
.cta:hover { filter: brightness(1.07); }
.cta:active { transform: scale(.98); }
.cta.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
}

.support {
  background: transparent;
  border: 1px dashed var(--line);
  border-radius: 16px;
  padding: 18px 22px;
  color: var(--ink-2);
}
.support h2 { margin: 0 0 4px; font-size: 15px; color: var(--ink); }
.support p { margin: 0; font-size: 14px; }

a { color: var(--accent); }
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

footer.site {
  padding: 24px clamp(20px, 5vw, 48px) 32px;
  color: var(--ink-2);
  font-size: 13px;
}
footer.site nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
footer.site a { color: var(--ink-2); }
footer.site p { margin: 0; }

@media (prefers-reduced-motion: reduce) {
  .cta { transition: none; }
}

.session-strip {
  background: var(--accent-soft);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 18px;
  font-size: 14px;
}

.notice {
  border-radius: 12px;
  padding: 12px 18px;
  font-size: 14px;
  border: 1px solid var(--line);
}
.notice.ok   { background: var(--accent-soft); color: var(--ink); }
.notice.warn { background: transparent; color: var(--ink); border-style: dashed; }

h2.group {
  margin: 28px 0 8px;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ink-2);
}

dl.settings { margin: 0; display: grid; gap: 10px; }
dl.settings dt { font-size: 13px; color: var(--ink-2); }
dl.settings dd { margin: 0 0 6px; overflow-wrap: anywhere; }
.muted { color: var(--ink-2); }
.tag {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
}

.settings-form { display: grid; gap: 16px; margin-top: 8px; }
.settings-form label { display: grid; gap: 6px; font-size: 14px; color: var(--ink-2); }
.settings-form input[type=url],
.settings-form input[type=text] {
  font: inherit;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
}
.settings-form label.check {
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 6px 10px;
}
.settings-form label.check small { grid-column: 2; color: var(--ink-2); }
.settings-form .cta { justify-self: start; margin-top: 4px; }

.policy-doc .eyebrow {
  margin: 0 0 4px;
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}
.policy-doc hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 24px 0;
}
.policy-doc h2 {
  margin: 26px 0 8px;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.policy-doc p { color: var(--ink-2); }
dl.policy { display: grid; gap: 14px; margin: 12px 0 0; }
dl.policy dt { font-weight: 600; }
dl.policy dd { margin: 4px 0 0; color: var(--ink-2); }