/* Word Den — legal & support site. System fonts only: no third-party requests. */
:root {
  --bg: #f4f7fc;
  --surface: #ffffff;
  --ink: #1d2444;
  --muted: #5b6382;
  --line: #e1e6f0;
  --accent: #e8572a;
  --accent-ink: #ffffff;
  --link: #c94619;
  --soft: #fff3ec;
  --navy: #26305c;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12162b;
    --surface: #1b2140;
    --ink: #eef1fa;
    --muted: #a6aec8;
    --line: #2c345a;
    --accent: #ff7a45;
    --accent-ink: #1a1206;
    --tab-ink: #1a1206;
    --link: #ff9a6e;
    --soft: #2a2440;
    --navy: #ff7a45;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
a { color: var(--link); text-underline-offset: 2px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 6px; }

.top {
  max-width: 820px;
  margin: 0 auto;
  padding: 20px 16px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { border-radius: 9px; display: block; }
.brand span { display: flex; flex-direction: column; line-height: 1.15; }
.brand b { font-size: 18px; letter-spacing: -0.01em; }
.brand small { color: var(--muted); font-size: 13px; }

.langs { position: relative; }
.langs summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 14px;
  color: var(--ink);
}
.langs summary::-webkit-details-marker { display: none; }
.langs svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.6; }
.langs ul {
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 5;
  margin: 0;
  padding: 6px;
  list-style: none;
  min-width: 170px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(10, 16, 40, 0.15);
}
.langs li a { display: block; padding: 7px 10px; border-radius: 8px; color: var(--ink); text-decoration: none; font-size: 15px; }
.langs li a:hover { background: var(--soft); }
.langs li a[aria-current] { font-weight: 600; color: var(--link); }

.tabs {
  max-width: 820px;
  margin: 0 auto;
  padding: 8px 16px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
}
.tabs a {
  flex: none;
  padding: 7px 13px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
}
.tabs a:hover { color: var(--ink); background: var(--surface); }
.tabs a[aria-current] { background: var(--navy); color: var(--tab-ink, #fff); }

.doc {
  max-width: 820px;
  margin: 14px auto 0;
  padding: 28px 22px 36px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
}
@media (min-width: 860px) { .doc { padding: 40px 52px 48px; } }
@media (max-width: 852px) { .doc { margin-left: 16px; margin-right: 16px; } }

h1 { font-size: clamp(26px, 5vw, 34px); line-height: 1.2; margin: 0 0 6px; letter-spacing: -0.02em; }
h2 { font-size: 19px; line-height: 1.3; margin: 34px 0 8px; letter-spacing: -0.01em; scroll-margin-top: 16px; }
section > h2:first-child { margin-top: 34px; }
p, ul, ol { margin: 0 0 12px; }
ul, ol { padding-left: 22px; }
li { margin: 4px 0; }
.updated { color: var(--muted); font-size: 14px; margin-bottom: 20px; }
.note { font-size: 14px; color: var(--muted); background: var(--bg); border-radius: 10px; padding: 10px 14px; }

.summary { background: var(--soft); border-radius: 14px; padding: 4px 20px 8px; margin: 22px 0; }
.summary h2 { margin-top: 16px !important; }

.toc { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 6px 0 10px; margin: 24px 0 8px; }
.toc h2 { font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); margin: 12px 0 6px !important; }
.toc ol { list-style: none; padding: 0; columns: 2 260px; column-gap: 28px; font-size: 15px; }
.toc li { break-inside: avoid; }
.toc a { text-decoration: none; }
.toc a:hover { text-decoration: underline; }

.contact { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin: 22px 0 6px; }
.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-ink);
  text-decoration: none;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 12px;
  box-shadow: 0 4px 0 -1px rgba(150, 50, 10, 0.35);
}
.btn:hover { filter: brightness(1.05); }
.mail { font-weight: 500; overflow-wrap: anywhere; }

.qa { border-bottom: 1px solid var(--line); }
.qa summary { cursor: pointer; padding: 13px 26px 13px 0; font-weight: 600; position: relative; list-style: none; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; position: absolute; right: 2px; top: 10px; font-size: 20px; color: var(--muted); font-weight: 400; }
.qa[open] summary::after { content: "–"; }
.qa p { color: var(--ink); margin: 0 0 14px; }

.links { list-style: none; padding: 0; }
.links li { margin: 6px 0; }

.cards { display: grid; gap: 10px; margin-top: 22px; }
.card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-decoration: none;
  color: var(--ink);
}
.card:hover { border-color: var(--accent); background: var(--soft); }
.card span { color: var(--accent); font-size: 18px; }

.foot { max-width: 820px; margin: 0 auto; padding: 22px 16px 40px; color: var(--muted); font-size: 14px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 6px 18px; margin-bottom: 6px; }
.foot a { color: var(--muted); }