:root {
  --navy: #0f3566;
  --blue: #1677ff;
  --blue-dark: #0958d9;
  --ink: #1f2a37;
  --muted: #5b6676;
  --line: #e3e8ef;
  --bg: #f7f9fc;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(15, 53, 102, 0.06), 0 8px 24px rgba(15, 53, 102, 0.08);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: system-ui, -apple-system, 'Segoe UI', Tahoma, 'Noto Sans Arabic', 'Noto Sans', Arial, sans-serif;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}
html[lang='fa'] body,
html[lang='ar'] body {
  font-family: Tahoma, 'Segoe UI', 'Noto Sans Arabic', system-ui, Arial, sans-serif;
  line-height: 1.95;
}
/* Every language is in the page; only the chosen one is shown. */
html:not([lang='en']) .en,
html:not([lang='fa']) .fa,
html:not([lang='es']) .es,
html:not([lang='ar']) .ar {
  display: none !important;
}
a {
  color: var(--blue-dark);
}
.wrap {
  width: min(860px, 100% - 40px);
  margin-inline: auto;
}

header.top {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.bar {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--navy);
  text-decoration: none;
  margin-inline-end: auto;
}
.brand img {
  width: 38px;
  height: 38px;
  border-radius: 10px;
}
.lang {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 999px;
  padding: 6px 12px;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
}
.lang:hover {
  border-color: var(--blue);
}
.btn {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 8px 16px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  background: var(--blue);
  color: #fff;
}
.btn:hover {
  background: var(--blue-dark);
}
.lang:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(22, 119, 255, 0.45);
  outline-offset: 2px;
}

main.wrap {
  padding: 40px 0 56px;
}
.back {
  display: inline-block;
  margin-bottom: 18px;
  text-decoration: none;
  color: var(--muted);
  font-size: 0.95rem;
}
.back:hover {
  color: var(--navy);
}
html[dir='rtl'] .back .arrow {
  display: inline-block;
  transform: scaleX(-1);
}
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 36px 40px;
}
h1 {
  margin: 0 0 4px;
  color: var(--navy);
  font-size: clamp(1.7rem, 4vw, 2.3rem);
  line-height: 1.25;
}
html[lang='fa'] h1,
html[lang='ar'] h1 {
  line-height: 1.6;
}
.updated {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 0.92rem;
}
h2 {
  margin: 28px 0 6px;
  color: var(--navy);
  font-size: 1.15rem;
}
p {
  margin: 0 0 12px;
}
.disclaimer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
}

footer {
  padding: 8px 0 40px;
  color: var(--muted);
  font-size: 0.9rem;
}
footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}
footer a {
  color: var(--muted);
}

@media (max-width: 600px) {
  .card {
    padding: 24px 20px;
  }
  .btn {
    display: none;
  }
}