/* AI Connect Hub - dashboard styles
   Palette: canvas #F5F6F8, surface #FFFFFF, ink #15171C, muted #5E6470, line #DDE1E7,
            signal #2848E8, live #127A52, caution #9A5B00, fault #B42318
   Type: Instrument Sans for everything, JetBrains Mono only for the MCP URL and codes. */
:root {
  --canvas: #F5F6F8; --surface: #FFFFFF; --ink: #15171C; --muted: #5E6470; --line: #DDE1E7;
  --signal: #2848E8; --signal-soft: #E8ECFF; --live: #127A52; --live-soft: #E3F4EC;
  --caution: #9A5B00; --caution-soft: #FFF3DC; --fault: #B42318; --fault-soft: #FDECEA;
  --radius-s: 6px; --radius-m: 10px; --radius-l: 16px;
  --font: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--canvas); color: var(--ink); font: 400 16px/1.55 var(--font); }
a { color: var(--signal); text-underline-offset: 2px; }
h1, h2, h3 { line-height: 1.2; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.75rem, 1.2rem + 1.6vw, 2.4rem); font-weight: 650; }
h2 { font-size: 1.3rem; font-weight: 600; }
h3 { font-size: 1.05rem; font-weight: 600; }
p { margin: 0; max-width: 68ch; }
.muted { color: var(--muted); }
.small { font-size: 0.875rem; }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; border-radius: 4px; }

/* layout */
.wrap { width: min(1120px, 100% - 40px); margin-inline: auto; }
.page { padding: 32px 0 80px; }
.stack > * + * { margin-top: var(--gap, 16px); }
.grid-main { display: grid; gap: 24px; grid-template-columns: minmax(0, 1fr) 320px; align-items: start; }
@media (max-width: 900px) { .grid-main { grid-template-columns: minmax(0, 1fr); } }

/* top bar */
.topbar { background: var(--surface); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.topbar .wrap { display: flex; align-items: center; gap: 28px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 650; color: var(--ink); text-decoration: none; }
.brand-mark { width: 26px; height: 26px; border-radius: 50%; border: 2px solid var(--ink); position: relative; }
.brand-mark::after { content: ""; position: absolute; inset: 5px; border-radius: 50%; background: var(--signal); }
.nav { display: flex; gap: 4px; flex: 1; overflow-x: auto; }
.nav a { color: var(--muted); text-decoration: none; padding: 8px 12px; border-radius: var(--radius-s); font-weight: 500; white-space: nowrap; }
.nav a:hover { color: var(--ink); background: var(--canvas); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--canvas); }
.who { display: flex; align-items: center; gap: 12px; font-size: 0.875rem; color: var(--muted); }
@media (max-width: 720px) { .who span { display: none; } .topbar .wrap { gap: 12px; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: 600 0.95rem/1 var(--font);
  padding: 11px 18px; border-radius: var(--radius-s); border: 1px solid transparent; cursor: pointer; text-decoration: none; white-space: nowrap; }
.btn-primary { background: var(--signal); color: #fff; }
.btn-primary:hover { background: #1D39C9; }
.btn-dark { background: var(--ink); color: #fff; }
.btn-quiet { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-quiet:hover { border-color: var(--muted); }
.btn-danger { background: var(--surface); color: var(--fault); border-color: #F1B8B2; }
.btn-danger:hover { background: var(--fault-soft); }
.btn-link { background: none; border: 0; color: var(--muted); padding: 6px 0; font: 500 0.9rem var(--font); cursor: pointer; text-decoration: underline; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
form.inline { display: inline; margin: 0; }

/* surfaces */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); padding: 24px; }
.chip { display: inline-flex; align-items: center; gap: 6px; font-size: 0.8rem; font-weight: 600; padding: 3px 10px; border-radius: 999px; background: var(--canvas); color: var(--muted); }
.chip-live { background: var(--live-soft); color: var(--live); }
.chip-caution { background: var(--caution-soft); color: var(--caution); }
.chip-fault { background: var(--fault-soft); color: var(--fault); }
.chip-signal { background: var(--signal-soft); color: var(--signal); }

/* flash */
.flash { border-radius: var(--radius-m); padding: 12px 16px; margin-bottom: 20px; border: 1px solid var(--line); background: var(--surface); }
.flash-success { border-color: #A6D9C0; background: var(--live-soft); }
.flash-error { border-color: #F1B8B2; background: var(--fault-soft); }

/* page header */
.page-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 24px; }
.page-head p { margin-top: 6px; }

/* setup steps (a real sequence) */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; list-style: none; padding: 0; margin: 0 0 24px;
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); overflow: hidden; }
.steps li { padding: 18px 20px; display: flex; gap: 14px; align-items: flex-start; }
.steps li + li { border-left: 1px solid var(--line); }
.step-num { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 650; font-size: 0.85rem;
  border: 1.5px solid var(--line); color: var(--muted); }
.steps .current .step-num { border-color: var(--signal); color: var(--signal); }
.steps .done .step-num { background: var(--live); border-color: var(--live); color: #fff; }
.steps .done h3 { color: var(--muted); }
.steps p { font-size: 0.875rem; color: var(--muted); margin-top: 2px; }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; } .steps li + li { border-left: 0; border-top: 1px solid var(--line); } }

/* MCP URL panel: the one bold element */
.plug { background: var(--ink); color: #fff; border-radius: var(--radius-l); padding: 26px 28px; }
.plug-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: baseline; }
.plug p { color: #B7BCC7; }
.plug-url { margin-top: 18px; display: flex; gap: 10px; align-items: stretch; }
.plug-url code { flex: 1; min-width: 0; font: 500 0.92rem/1.4 var(--mono); background: #23262E; border: 1px solid #343844;
  border-radius: var(--radius-s); padding: 12px 14px; overflow-x: auto; white-space: nowrap; color: #E9ECF3; }
.plug-url .btn { background: #fff; color: var(--ink); }
.plug-url .btn.copied { background: #8FE3BC; }
.plug-locked code { color: #6D7382; filter: blur(3px); user-select: none; }
.sockets { display: flex; gap: 6px; align-items: center; }
.socket { width: 12px; height: 12px; border-radius: 50%; border: 1.5px solid #5B6070; }
.socket.on { background: #5BD39C; border-color: #5BD39C; }
.plug details { margin-top: 16px; border-top: 1px solid #2E323C; padding-top: 14px; }
.plug summary { cursor: pointer; font-weight: 600; color: #fff; }
.plug ol { margin: 12px 0 0; padding-left: 20px; color: #C9CED8; }
.plug ol li + li { margin-top: 6px; }
.plug .hint { margin-top: 12px; font-size: 0.875rem; }

/* tools list */
.tools { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); }
.tools-group { padding: 14px 24px 6px; font-size: 0.9rem; font-weight: 600; color: var(--muted); border-top: 1px solid var(--line); }
.tools-group:first-child { border-top: 0; }
.tool { display: grid; grid-template-columns: 22px minmax(0, 1fr) auto; gap: 16px; align-items: center; padding: 16px 24px; }
.tool + .tool { border-top: 1px dashed var(--line); }
.tool .socket { width: 18px; height: 18px; border: 2px solid var(--line); }
.tool.is-on .socket { background: var(--live); border-color: var(--live); box-shadow: 0 0 0 4px var(--live-soft); }
.tool.is-warn .socket { border-color: var(--caution); background: var(--caution-soft); }
.tool-name { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.tool p { font-size: 0.9rem; color: var(--muted); margin-top: 2px; }
.tool .meta { font-size: 0.85rem; margin-top: 4px; }
.tool .meta.on { color: var(--live); }
.tool .meta.warn { color: var(--caution); }
@media (max-width: 600px) { .tool { grid-template-columns: 18px 1fr; } .tool-action { grid-column: 2; } }

/* sidebar */
.meter { height: 8px; background: var(--canvas); border-radius: 999px; overflow: hidden; margin: 10px 0 6px; }
.meter span { display: block; height: 100%; background: var(--signal); border-radius: inherit; }
.meter.high span { background: var(--caution); }
.kv { display: flex; justify-content: space-between; gap: 12px; font-size: 0.92rem; padding: 8px 0; border-top: 1px solid var(--line); }
.kv:first-of-type { border-top: 0; }

/* plans */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); padding: 26px; display: flex; flex-direction: column; gap: 14px; }
.plan.current { border: 2px solid var(--signal); }
.plan .price { font-size: 1.9rem; font-weight: 650; letter-spacing: -0.02em; }
.plan ul { margin: 0; padding-left: 20px; color: var(--muted); }
.plan .pay { display: grid; gap: 10px; margin-top: auto; }
.notice { border-radius: var(--radius-m); padding: 12px 16px; background: var(--caution-soft); color: #5E3A00; font-size: 0.92rem; margin-bottom: 20px; }

/* tables */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-l); }
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-weight: 600; color: var(--muted); background: #FAFBFC; }
tr:last-child td { border-bottom: 0; }
code.inline { font: 500 0.85rem var(--mono); background: var(--canvas); padding: 2px 6px; border-radius: 4px; }

/* forms */
label { font-weight: 600; font-size: 0.92rem; display: block; margin-bottom: 6px; }
input[type=text] { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius-s); width: 100%; max-width: 280px; }

/* landing */
.hero { padding: 72px 0 48px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 1.4rem + 3vw, 3.6rem); font-weight: 650; letter-spacing: -0.03em; line-height: 1.05; }
.hero .lede { font-size: 1.15rem; color: var(--muted); margin-top: 18px; }
.hero .actions { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; padding-top: 40px; } }
.how { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; padding: 40px 0; border-top: 1px solid var(--line); list-style: none; margin: 0; }
.how li { padding: 0; }
.how .step-num { margin-bottom: 12px; border-color: var(--ink); color: var(--ink); }
.how p { color: var(--muted); margin-top: 6px; }
@media (max-width: 760px) { .how { grid-template-columns: 1fr; } }
.footer { border-top: 1px solid var(--line); padding: 24px 0; font-size: 0.875rem; color: var(--muted); }
.footer .wrap { display: flex; gap: 20px; flex-wrap: wrap; }
.prose h2 { margin: 28px 0 8px; }
.prose p, .prose li { color: #2E323B; max-width: 72ch; }
.prose p + p { margin-top: 12px; }

@media (prefers-reduced-motion: no-preference) {
  .tool.is-on .socket { transition: box-shadow .3s ease; }
}

/* connect buttons: clear but calmer than the page's primary action */
.btn-connect { background: var(--signal-soft); color: var(--signal); border-color: #C7D0FF; }
.btn-connect:hover { background: #DCE2FF; border-color: var(--signal); }
.topbar .wrap { min-width: 0; }
.nav { min-width: 0; }