/* iso.me docs — shared styles (adapted from the site's doc template) */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --paper: #f5f4ef;
  --paper-deep: #ecebe4;
  --card: #ffffff;
  --ink: #1f1f1f;
  --ink-soft: #3a3a38;
  --mute: #85827e;
  --rule: #d2cfca;
  --rule-soft: #e3e0db;
  --accent: #3274f4;
  --accent-soft: rgba(50, 116, 244, 0.10);
  --lcd: #00c773;
  --lcd-bg: #e0e6d9;
  --warn-bg: #fdf3e4;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --display: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --radius: 4px;
}
body {
  font-family: var(--mono);
  background: var(--paper); color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
p a { text-decoration: underline; text-underline-offset: 0.18em; }
img { max-width: 100%; }

nav.top {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245, 244, 239, 0.92);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--rule);
}
.nav-inner {
  max-width: 880px; margin: 0 auto;
  padding: 14px 28px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-weight: 700;
  font-size: 0.95rem; letter-spacing: 0.04em;
  color: var(--ink);
}
.brand img {
  width: 26px; height: 26px;
  border-radius: var(--radius);
  border: 1px solid var(--rule);
}
.brand-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--lcd);
  box-shadow: 0 0 6px rgba(0, 199, 115, 0.6);
}
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 500;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--accent); padding-bottom: 2px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper) !important;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.btn:hover { background: var(--accent); border-color: var(--accent); text-decoration: none; }

.doc-head { max-width: 880px; margin: 0 auto; padding: 70px 28px 30px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 600;
  margin-bottom: 18px;
}
.eyebrow::before { content: ''; width: 22px; height: 1px; background: var(--mute); display: inline-block; }
h1 {
  font-family: var(--display);
  font-size: clamp(2.2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 14px;
  color: var(--ink);
}
.lede { color: var(--ink-soft); font-size: 1rem; max-width: 640px; margin-bottom: 8px; }
.meta-strip {
  display: flex; gap: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  margin-top: 28px;
}
.meta-strip > div { padding: 14px 18px; border-right: 1px solid var(--rule); flex: 1; }
.meta-strip > div:last-child { border-right: 0; }
.meta-strip .k {
  font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--mute); margin-bottom: 4px;
}
.meta-strip .v { font-size: 0.85rem; color: var(--ink); font-weight: 600; letter-spacing: 0.04em; }

.content { max-width: 880px; margin: 0 auto; padding: 30px 28px 80px; }
.doc-card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 48px 44px;
}
.doc-card h2 {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin: 38px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.doc-card h2:first-child { margin-top: 0; }
.doc-card h3 {
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 26px 0 8px;
  color: var(--ink);
}
.doc-card p, .doc-card li {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-bottom: 14px;
  line-height: 1.7;
}
.doc-card ul, .doc-card ol { list-style: none; padding-left: 0; margin-bottom: 14px; }
.doc-card li { padding-left: 22px; position: relative; margin-bottom: 8px; }
.doc-card li::before {
  content: '·'; color: var(--accent); font-weight: 700;
  position: absolute; left: 8px; top: -2px; font-size: 1.4rem;
}
.doc-card ol { counter-reset: item; }
.doc-card ol li::before {
  content: counter(item) '.'; counter-increment: item;
  color: var(--accent); font-weight: 700; font-size: 0.85rem;
  position: absolute; left: 0; top: 2px;
}
.doc-card strong { color: var(--ink); font-weight: 700; }
.doc-card code {
  background: var(--paper-deep);
  border: 1px solid var(--rule-soft);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 0.82em;
  color: var(--ink);
}

/* Callouts */
.callout {
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin: 18px 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.callout strong { color: var(--ink); }
.callout.warn { border-left-color: #c47f17; background: var(--warn-bg); }
.callout.pro {
  border-left-color: var(--lcd);
  background: var(--lcd-bg);
}
.callout p { margin-bottom: 0; font-size: 0.85rem; }

/* Tables */
table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.82rem; }
th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--rule-soft);
  color: var(--ink-soft);
  vertical-align: top;
}
th {
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mute);
  border-bottom: 1px solid var(--rule);
}
td strong { color: var(--ink); }

/* Docs index grid */
.guides { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 8px; }
.guide-card {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  padding: 22px 24px;
  display: flex; flex-direction: column; gap: 8px;
  position: relative;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.guide-card:hover { border-color: var(--accent); transform: translateY(-1px); text-decoration: none; }
.guide-card .num {
  font-size: 0.64rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--mute);
}
.guide-card h3 {
  font-family: var(--display); font-size: 1.08rem; font-weight: 750;
  color: var(--ink); margin: 0; letter-spacing: -0.01em;
}
.guide-card p { font-size: 0.8rem; color: var(--ink-soft); margin: 0; line-height: 1.55; }
.guide-card .tag {
  position: absolute; top: 18px; right: 18px;
  font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--lcd); font-weight: 600;
}
.guide-card .tag.pro { color: var(--accent); }

/* Prev / next pager */
.pager {
  display: flex; justify-content: space-between; gap: 14px;
  margin-top: 26px;
}
.pager a {
  flex: 1;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--card);
  padding: 14px 18px;
  font-size: 0.78rem;
  color: var(--ink-soft);
}
.pager a:hover { border-color: var(--accent); text-decoration: none; }
.pager .dir {
  display: block;
  font-size: 0.62rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--mute); margin-bottom: 4px;
}
.pager .title { color: var(--ink); font-weight: 600; }
.pager a.next { text-align: right; }

footer {
  border-top: 1px solid var(--rule);
  background: var(--paper-deep);
  padding: 32px 0;
}
.footer-inner {
  max-width: 880px; margin: 0 auto; padding: 0 28px;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 16px;
}
.footer-brand {
  font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--mute); display: flex; align-items: center; gap: 10px;
}
.footer-brand .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--lcd); }
.footer-links { display: flex; gap: 22px; }
.footer-links a {
  font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--mute);
}
.footer-links a:hover { color: var(--ink); text-decoration: none; }

@media (max-width: 640px) {
  .doc-head { padding: 50px 20px 20px; }
  .content { padding: 20px 20px 60px; }
  .doc-card { padding: 28px 22px; }
  .meta-strip { flex-direction: column; }
  .meta-strip > div { border-right: 0; border-bottom: 1px solid var(--rule); }
  .meta-strip > div:last-child { border-bottom: 0; }
  .nav-links a:not(.btn) { display: none; }
  .nav-links .btn { padding: 8px 12px; font-size: 0.7rem; letter-spacing: 0.1em; }
  .brand { font-size: 0.85rem; letter-spacing: 0.06em; }
  .brand img { width: 22px; height: 22px; }
  .guides { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}