:root {
  --paper: #f7f5f0; --surface: #fffdf8; --ink: #1a1d24; --ink-soft: #565b66;
  --line: #e3ded3; --accent: #0f766e; --accent-ink: #ffffff; --accent-soft: #d7ebe8;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14161b; --surface: #1c1f26; --ink: #eef0f3; --ink-soft: #a2a8b4;
    --line: #2c313b; --accent: #2dd4bf; --accent-ink: #06201d; --accent-soft: #10312d;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.6 "IBM Plex Sans", system-ui, sans-serif;
}
h1, h2, h3 { font-family: "Space Grotesk", system-ui, sans-serif; line-height: 1.15; text-wrap: balance; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); letter-spacing: -.02em; }
h2 { font-size: 1.6rem; letter-spacing: -.01em; }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
a { color: var(--accent); }
.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: .92em; }
.muted { color: var(--ink-soft); }
.small { font-size: .88rem; }
.wrap { max-width: 1040px; margin: 0 auto; padding-inline: 20px; }
.narrow { max-width: 440px; }
.section { padding-block: 56px; }

.site-header { border-bottom: 1px solid var(--line); background: var(--surface); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-block: 14px; }
.brand { font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.25rem; color: var(--ink); text-decoration: none; }
.beta { font-family: "IBM Plex Mono", monospace; font-size: .7rem; font-weight: 500; color: var(--accent); background: var(--accent-soft); border-radius: 20px; padding: 2px 8px; margin-left: 8px; vertical-align: middle; }
nav { display: flex; align-items: center; gap: 20px; }
nav a { color: var(--ink-soft); text-decoration: none; }
nav a:hover { color: var(--ink); }

.button { display: inline-block; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: var(--radius); padding: 12px 20px; font: 600 1rem "IBM Plex Sans", sans-serif; text-decoration: none; cursor: pointer; }
nav .button.small, .button.small { padding: 7px 14px; font-size: .9rem; color: var(--accent-ink); }
.button:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.link { color: var(--ink-soft); }

.hero { padding-block: 72px 40px; }
.eyebrow { font-family: "IBM Plex Mono", monospace; font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.lede { font-size: 1.15rem; max-width: 62ch; color: var(--ink-soft); }
.actions { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-top: 28px; }

.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps li { counter-increment: step; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.steps li::before { content: counter(step); display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 7px; background: var(--accent); color: var(--accent-ink); font: 700 .9rem "Space Grotesk", sans-serif; margin-bottom: 12px; }
.steps p, .reasons p, .tier .muted { color: var(--ink-soft); margin: 0; }
.reasons { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }

.tiers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-block: 20px; }
.tier { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.tier.featured { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.price { font: 700 2rem "Space Grotesk", sans-serif; margin: 4px 0 6px; }
.price span { font: 400 .9rem "IBM Plex Sans", sans-serif; color: var(--ink-soft); }
.tier ul { padding-left: 18px; margin: 14px 0 0; color: var(--ink-soft); font-size: .93rem; }

.closing { text-align: center; }
.closing p { color: var(--ink-soft); }

.stack { display: flex; flex-direction: column; gap: 10px; margin-top: 20px; }
label { font-weight: 500; }
input { font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); }

.site-footer { border-top: 1px solid var(--line); margin-top: 40px; font-size: .9rem; color: var(--ink-soft); }

@media (max-width: 820px) {
  .steps, .reasons { grid-template-columns: 1fr; }
  .tiers { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .tiers { grid-template-columns: 1fr; }
  nav { gap: 12px; }
}

/* --- account pages --------------------------------------------------------- */
.wide { max-width: 760px; }
.inline { display: inline; margin: 0; }
.error { background: #fbe9e7; color: #8a1c0b; border-radius: var(--radius); padding: 10px 14px; }
.notice { background: var(--accent-soft); color: var(--ink); border-radius: var(--radius); padding: 10px 14px; }
.callout { background: var(--surface); border: 1px solid var(--accent); border-radius: var(--radius); padding: 20px 22px; margin-block: 24px; }
pre { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; overflow-x: auto; }
pre code { font-family: "IBM Plex Mono", ui-monospace, monospace; font-size: .88rem; white-space: pre; }
pre.secret { border-color: var(--accent); user-select: all; }
section h2 { margin-top: 36px; }
.pairs { display: grid; grid-template-columns: max-content 1fr; gap: 6px 16px; margin: 0 0 1em; }
.pairs dt { font-weight: 500; }
.pairs dd { margin: 0; overflow-wrap: anywhere; }
table.list { width: 100%; border-collapse: collapse; margin-block: 12px; font-size: .95rem; }
table.list th, table.list td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.list th { font-weight: 500; color: var(--ink-soft); font-size: .85rem; }
tr.pending td { color: var(--ink-soft); font-style: italic; }
.row-actions { text-align: right; white-space: nowrap; }
.row-form { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-block: 16px; }
.row-form input { flex: 1 1 220px; }
select { font: inherit; padding: 10px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); color: var(--ink); }
.button.ghost { background: transparent; color: var(--accent); border: 1px solid var(--line); }
.button.danger { color: #b3261e; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
@media (prefers-color-scheme: dark) {
  .error { background: #3b1510; color: #ffb4a9; }
  .button.danger { color: #ffb4a9; }
}