/* Shared stylesheet for the Pryglass pages (index, privacy, support).
   Plain CSS, no external resources. Light and dark follow the system setting. */

:root {
  color-scheme: light dark;
  --ink: #14161c;
  --muted: #555b69;
  --accent: #1d4ed8;
  --accent-ink: #ffffff;
  --band: #1e3a8a;
  --band-ink: #f5f7ff;
  --band-muted: #c9d5f5;
  --paper: #f6f7f9;
  --card: #ffffff;
  --line: #d8dce4;
  --soft: #eef1f7;
  --code-bg: #e9ecf3;
  --warn-bg: #fff7e6;
  --warn-line: #e9c46a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #eceef3;
    --muted: #a9b0bf;
    --accent: #8fb0ff;
    --accent-ink: #0d1330;
    --band: #111a3a;
    --band-ink: #f2f4fb;
    --band-muted: #b3c0e6;
    --paper: #0e1015;
    --card: #171a22;
    --line: #2c3240;
    --soft: #1b2030;
    --code-bg: #232939;
    --warn-bg: #2a2413;
    --warn-line: #7a6424;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow-wrap: break-word;
}

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--card);
  color: var(--ink);
  padding: 0.5rem 0.75rem;
  z-index: 10;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

header.band {
  background: var(--band);
  color: var(--band-ink);
  padding: 2.25rem 1rem 2rem;
}
header.band .wrap,
nav.top .wrap,
main,
footer.site .wrap {
  max-width: 46rem;
  margin: 0 auto;
}
header.band h1 {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.02em;
}
header.band p {
  margin: 0.45rem 0 0;
  color: var(--band-muted);
  font-size: 1rem;
}

nav.top {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 0 1rem;
}
nav.top ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
}
nav.top li { margin: 0; }
nav.top a {
  display: inline-block;
  padding: 0.7rem 0;
  color: var(--ink);
  text-decoration: none;
  font-weight: 550;
}
nav.top a:hover { text-decoration: underline; }
nav.top a[aria-current="page"] {
  color: var(--accent);
  box-shadow: inset 0 -3px 0 var(--accent);
}

main { padding: 2rem 1rem 3rem; }

h2 {
  font-size: 1.2rem;
  line-height: 1.3;
  margin: 2.25rem 0 0.6rem;
  scroll-margin-top: 1rem;
}
h3 {
  font-size: 1.02rem;
  margin: 1.5rem 0 0.4rem;
  scroll-margin-top: 1rem;
}
p, li { color: var(--ink); }
.lede { font-size: 1.08rem; }
.muted, .updated { color: var(--muted); }
.updated { font-size: 0.92rem; margin: 0 0 1.25rem; }
ul, ol { padding-left: 1.3rem; }
li { margin: 0.35rem 0; }

a { color: var(--accent); text-underline-offset: 0.15em; }
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

code {
  font: 0.9em/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--code-bg);
  border-radius: 4px;
  padding: 0.05em 0.3em;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1rem 1.15rem;
  margin: 1rem 0;
}
.card > :first-child { margin-top: 0; }
.card > :last-child { margin-bottom: 0; }

.summary { background: var(--soft); }

.note {
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  margin: 1rem 0;
}
.note > :first-child { margin-top: 0; }
.note > :last-child { margin-bottom: 0; }

.grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 40rem) {
  .grid.two { grid-template-columns: 1fr 1fr; }
  .grid.two .card { margin: 0; }
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0 0;
}
.button {
  display: inline-block;
  padding: 0.65rem 1.1rem;
  border-radius: 10px;
  font-weight: 600;
  text-decoration: none;
  background: var(--band-ink);
  color: var(--band);
  border: 1px solid transparent;
}
.button.ghost {
  background: transparent;
  color: var(--band-ink);
  border-color: var(--band-muted);
}
.button:hover { text-decoration: underline; }

/* Data table: a normal table on wide screens, stacked rows on phones. */
table.data {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
table.data caption {
  text-align: left;
  font-weight: 600;
  padding: 0 0 0.4rem;
}
table.data th,
table.data td {
  text-align: left;
  vertical-align: top;
  padding: 0.65rem 0.8rem;
  border-top: 1px solid var(--line);
}
table.data thead th {
  border-top: 0;
  background: var(--soft);
  font-size: 0.88rem;
}
@media (max-width: 40rem) {
  table.data,
  table.data tbody,
  table.data tr,
  table.data td,
  table.data th { display: block; width: 100%; }
  table.data thead { position: absolute; left: -9999px; }
  table.data tr { border-top: 1px solid var(--line); padding: 0.4rem 0; }
  table.data tr:first-child { border-top: 0; }
  table.data td,
  table.data tbody th { border-top: 0; padding: 0.3rem 0.8rem; }
  table.data td[data-label]::before {
    content: attr(data-label);
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--muted);
  }
}

details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  margin: 0.6rem 0;
  padding: 0 1rem;
}
details[open] { padding-bottom: 0.75rem; }
summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.75rem 0;
  list-style-position: outside;
}
details > :not(summary):first-of-type { margin-top: 0.1rem; }

.toc {
  columns: 1;
  padding-left: 1.3rem;
}
@media (min-width: 40rem) { .toc { columns: 2; column-gap: 2rem; } }
.toc li { break-inside: avoid; margin: 0.2rem 0; }

footer.site {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  padding: 1.25rem 1rem 2.5rem;
}
footer.site p { color: var(--muted); margin: 0.3rem 0; }
footer.site a { color: var(--muted); }

@media print {
  nav.top, .cta, .skip { display: none; }
  header.band { background: none; color: #000; padding: 0 0 1rem; }
  header.band p { color: #333; }
  body { background: #fff; color: #000; }
}

main > h2:first-child { margin-top: 0; }