/* Penduses site. One file, no build step, no external fonts. Light and dark via prefers-color-scheme. */

:root {
  color-scheme: light dark;
  --bg: #f7f8f5;
  --surface: #ffffff;
  --surface-alt: #edf0ea;
  --text: #14201c;
  --muted: #46564f;
  --border: #d3dad1;
  --accent: #0a6c5b;
  --accent-hover: #085a4c;
  --accent-soft: #dcefe9;
  --on-accent: #ffffff;
  --code-bg: #101a17;
  --code-text: #e4efe9;
  --code-muted: #93aba1;
  --warn-bg: #fff3cf;
  --warn-border: #d9a91c;
  --warn-text: #4d3a00;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(20, 32, 28, 0.06), 0 4px 16px rgba(20, 32, 28, 0.05);
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b1210;
    --surface: #111b18;
    --surface-alt: #0e1714;
    --text: #e6efea;
    --muted: #9fb3aa;
    --border: #25352f;
    --accent: #3fd6b5;
    --accent-hover: #6be6ca;
    --accent-soft: #12302a;
    --on-accent: #06231d;
    --code-bg: #070d0b;
    --code-text: #e4efe9;
    --code-muted: #7f978d;
    --warn-bg: #2b2410;
    --warn-border: #8a6d16;
    --warn-text: #f3d987;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
}

img, svg { max-width: 100%; height: auto; }

a { color: var(--accent); text-underline-offset: 0.15em; }
a:hover { color: var(--accent-hover); }

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

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5.2vw, 3.1rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.3em; }
li { margin-bottom: 0.35em; }

code, pre { font-family: var(--mono); font-size: 0.92em; }
:not(pre) > code {
  background: var(--accent-soft);
  padding: 0.1em 0.35em;
  border-radius: 5px;
  overflow-wrap: anywhere;
}

.container {
  width: 100%;
  max-width: 68rem;
  margin-inline: auto;
  padding-inline: 1rem;
}
@media (min-width: 40rem) { .container { padding-inline: 1.5rem; } }
.container.narrow { max-width: 68rem; }
.narrow > * { max-width: 46rem; }
.narrow > .table-wrap { max-width: none; }

.skip-link {
  position: absolute;
  left: 0.5rem;
  top: -4rem;
  background: var(--accent);
  color: var(--on-accent);
  padding: 0.6rem 1rem;
  border-radius: 6px;
  z-index: 100;
}
.skip-link:focus { top: 0.5rem; color: var(--on-accent); }

/* ---- header ---- */
.site-header { border-bottom: 1px solid var(--border); background: var(--surface); }
.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
  padding-block: 0.75rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}
.brand:hover { color: var(--accent); }
.brand-mark { color: var(--accent); flex: none; }
.main-nav { margin-inline-start: auto; }
.main-nav ul { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; list-style: none; margin: 0; padding: 0; }
.main-nav li { margin: 0; }
.main-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  padding: 0.4rem 0;
  display: inline-block;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover { color: var(--text); }
.main-nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); }
.btn.header-cta { display: none; }
@media (min-width: 60rem) { .btn.header-cta { display: inline-block; } }
@media (max-width: 39.99rem) {
  .main-nav { margin-inline-start: 0; width: 100%; }
  .main-nav ul { gap: 0.1rem 0.85rem; }
  .main-nav a { font-size: 0.95rem; }
}

/* ---- buttons ---- */
.btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  padding: 0.8rem 1.25rem;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); color: var(--on-accent); }
.btn-secondary { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn-secondary:hover { background: var(--accent-soft); color: var(--accent-hover); }
.btn-sm { padding: 0.5rem 0.9rem; font-size: 0.95rem; }
.btn-block { display: block; width: 100%; }

/* ---- draft banner ---- */
.draft-banner {
  background: var(--warn-bg);
  color: var(--warn-text);
  border-bottom: 2px solid var(--warn-border);
  padding-block: 0.65rem;
  font-size: 0.98rem;
}
.todo {
  background: var(--warn-bg);
  color: var(--warn-text);
  border: 1px dashed var(--warn-border);
  border-radius: 4px;
  padding: 0 0.3em;
}

/* ---- hero ---- */
.hero { padding-block: 2.5rem 3rem; border-bottom: 1px solid var(--border); }
.hero-inner { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 56rem) {
  .hero { padding-block: 4rem 4.5rem; }
  .hero-inner { grid-template-columns: 1.15fr 1fr; gap: 3rem; }
}
.hero h1 { font-size: clamp(1.75rem, 4.2vw, 2.55rem); }
.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.lead { font-size: 1.2rem; color: var(--muted); max-width: 40rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-block: 1.5rem 0.75rem; }
.fineprint { font-size: 0.9rem; color: var(--muted); margin: 0.5rem 0 0; }
.page-head { padding-block: 2.5rem 1rem; }
.page-head .lead { margin-bottom: 0; }

.ip-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
}
.ip-label { margin: 0 0 0.25rem; color: var(--muted); font-size: 0.95rem; }
.ip-value { margin: 0 0 0.5rem; font-size: clamp(1.6rem, 6vw, 2.4rem); font-weight: 700; }
.ip-value code { background: none; padding: 0; color: var(--accent); font-size: inherit; }
.ip-note { margin: 0; color: var(--muted); font-size: 0.9rem; }

/* flow diagram: an ordered list whose items are joined by arrows */
.flow {
  display: grid;
  gap: 2.25rem;
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  counter-reset: none;
}
.flow-node {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.9rem 1rem;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-align: center;
}
.flow-node span { color: var(--muted); font-size: 0.9rem; line-height: 1.35; }
.flow-node code { background: none; padding: 0; font-weight: 700; color: var(--accent); font-size: 1.05rem; overflow-wrap: anywhere; }
.flow-node-accent { border-color: var(--accent); background: var(--accent-soft); }
.flow-node + .flow-node::before {
  content: "\2193";
  position: absolute;
  top: -1.9rem;
  left: 50%;
  transform: translateX(-50%);
  color: var(--accent);
  font-size: 1.5rem;
  line-height: 1;
}
.flow-both .flow-node + .flow-node::before { content: "\2195"; }
@media (min-width: 40rem) and (max-width: 55.99rem) {
  .flow { grid-template-columns: repeat(3, 1fr); gap: 2.25rem; }
  .flow-node + .flow-node::before { content: "\2192"; top: 50%; left: -1.75rem; transform: translateY(-50%); }
  .flow-both .flow-node + .flow-node::before { content: "\2194"; }
}

/* ---- sections ---- */
.section { padding-block: 3rem; }
.section-alt { background: var(--surface-alt); border-block: 1px solid var(--border); }
.section-head { margin-bottom: 1.75rem; max-width: 46rem; }
.section-head p { color: var(--muted); margin-bottom: 0; }

.grid { display: grid; gap: 1.25rem; }
@media (min-width: 40rem) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 56rem) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.card > :last-child { margin-bottom: 0; }
.product-card { display: flex; flex-direction: column; }
.product-card .tag { align-self: flex-start; }
.product-card .cta-row { margin-top: auto; }
.card-lead { color: var(--muted); }
.card-price { margin: 0.5rem 0 0; }
.card-price strong { font-size: 1.5rem; }
.tag {
  display: inline-block;
  margin: 0 0 0.6rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}
.check-list { list-style: none; padding: 0; }
.check-list li { position: relative; padding-left: 1.6rem; }
.check-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.feature h3 { margin-bottom: 0.3rem; }
.feature p { color: var(--muted); margin: 0; }

/* steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 1.25rem; counter-reset: step; }
@media (min-width: 48rem) { .steps { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 48rem) { .steps.steps-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 64rem) { .steps.steps-4 { grid-template-columns: repeat(4, 1fr); } }
.steps li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 0;
}
.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.steps p { color: var(--muted); margin: 0; }

/* code */
.example { margin-bottom: 2.25rem; }
.example > p { color: var(--muted); }
.code-block { margin: 0 0 1rem; border-radius: var(--radius); overflow: hidden; background: var(--code-bg); }
.code-block figcaption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0.9rem;
  color: var(--code-muted);
  font-family: var(--mono);
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.code-block pre {
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  color: var(--code-text);
  font-size: 0.88rem;
  line-height: 1.55;
  tab-size: 2;
}
.code-block pre code { background: none; padding: 0; font-size: inherit; }
.copy-btn {
  font: inherit;
  font-size: 0.8rem;
  color: var(--code-text);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 6px;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
}
.copy-btn:hover { background: rgba(255, 255, 255, 0.1); }
.code-block :focus-visible { outline-color: #6be6ca; }
.note { color: var(--muted); font-size: 0.98rem; }
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}
.plan-loc { margin: 0.5rem 0 0; color: var(--muted); font-size: 0.92rem; }
.grid + .note, .plans + .note { margin-top: 1.25rem; }

/* pricing */
.plans { display: grid; gap: 1.25rem; margin-bottom: 1.75rem; }
@media (min-width: 40rem) { .plans-2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 48rem) { .plans-3 { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 40rem) and (max-width: 47.99rem) { .plans-3 { grid-template-columns: repeat(2, 1fr); } }
.plan {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.plan h3 { margin-bottom: 0.25rem; }
.plan-price { margin: 0; }
.plan-price .amount { font-size: 2.4rem; font-weight: 800; letter-spacing: -0.02em; }
.plan-price .per { color: var(--muted); font-size: 0.9rem; }
.plan-sub { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.92rem; }
.plan-list { list-style: none; padding: 0; margin: 1.1rem 0 1.5rem; }
.plan-list li { position: relative; padding-left: 1.5rem; }
.plan-list li::before { content: "\2713"; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.plan .btn { margin-top: auto; }

.notice {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-block: 1.5rem;
}
.notice > :last-child, .notice ul { margin-bottom: 0; }
.notice h2, .notice h3 { font-size: 1.15rem; }

/* FAQ */
.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  padding: 1rem 1.25rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 1.4rem; line-height: 1; }
.faq details[open] summary::after { content: "\2212"; }
.faq details > p { padding: 0 1.25rem 1rem; margin: 0; color: var(--muted); }

/* docs list */
.doc-list { list-style: none; padding: 0; margin: 0 0 2rem; }
.doc-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 0.5rem;
}
.doc-list .tag { margin: 0; }

/* docs navigation */
.docs-nav { margin-bottom: 2rem; }
.docs-nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.docs-nav a {
  display: inline-block;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font-size: 0.92rem;
  text-decoration: none;
}
.docs-nav a:hover { border-color: var(--accent); color: var(--accent); }
.docs-toc { margin: 0 0 2rem; padding-left: 1.25rem; }
.docs-toc li { margin-bottom: 0.25rem; }

/* legal pages */
.prose { font-size: 1.02rem; }
.prose h1 { margin-bottom: 0.25rem; }
.prose h2 { margin-top: 2rem; font-size: 1.35rem; }
.legal-meta { color: var(--muted); font-size: 0.95rem; margin-bottom: 1.5rem; }
.table-wrap { overflow-x: auto; margin-bottom: 1.5rem; }
table { border-collapse: collapse; width: 100%; min-width: 36rem; font-size: 0.95rem; }
th, td { text-align: left; vertical-align: top; padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border); }
th { background: var(--surface-alt); font-weight: 600; }

/* footer */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); padding-block: 2.5rem 1.5rem; margin-top: 0; }
.footer-grid { display: grid; gap: 1.75rem; }
@media (min-width: 40rem) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 60rem) { .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; } }
.footer-title { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin-bottom: 0.6rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.4rem; }
.site-footer a { color: var(--text); }
.site-footer a:hover { color: var(--accent); }
.footer-about p { color: var(--muted); max-width: 26rem; }
.brand-line { margin-bottom: 0.4rem; }
.footer-about .brand-line { color: var(--text); }
.copyright { margin: 2rem 0 0; color: var(--muted); font-size: 0.9rem; }

@media print {
  .site-header, .site-footer, .skip-link, .cta-row, .copy-btn { display: none; }
  body { background: #fff; color: #000; }
}