@font-face {
  font-family: "Vazirmatn";
  src: url("../fonts/Vazirmatn-Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Vazirmatn";
  src: url("../fonts/Vazirmatn-Bold.ttf") format("truetype");
  font-weight: 700;
  font-display: swap;
}

:root {
  /* Blue sampled from the NIKAN wordmark in the logo (docs/logo.md, draft until approved) */
  --accent: #0046f0;
  --text: #111;
  --muted: #555;
  --line: #e4e7ee;
  --bg: #fff;
  --todo-bg: #fff4c2;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Vazirmatn", "Segoe UI", Tahoma, sans-serif;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
}

.wrap {
  max-inline-size: 960px;
  margin-inline: auto;
  padding-inline: 16px;
}

/* Header */
.site-header {
  border-block-end: 1px solid var(--line);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 12px;
}
.brand { display: block; line-height: 0; }
.brand img {
  block-size: 48px;
  inline-size: auto;
}
.lang {
  display: flex;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 15px;
}
.lang [aria-current="page"] { font-weight: 700; }
.lang .soon { color: var(--muted); }

/* Sections */
main section { padding-block: 40px; border-block-end: 1px solid var(--line); }
main section:last-child { border-block-end: 0; }
h1, h2 { line-height: 1.5; margin-block: 0 12px; }
h1 { font-size: 34px; color: var(--accent); }
h2 { font-size: 24px; }
.lead { font-size: 20px; margin-block: 0 12px; }
ul, ol { padding-inline-start: 1.5em; }
ol { list-style-type: persian; }
li { margin-block-end: 6px; }

a { color: var(--accent); }

/* Visible placeholder for anything not yet confirmed by Nikan Group */
.todo {
  background: var(--todo-bg);
  border-radius: 4px;
  padding-inline: 4px;
}

.site-footer {
  padding-block: 24px;
  font-size: 15px;
  color: var(--muted);
  border-block-start: 1px solid var(--line);
}

@media (min-width: 640px) {
  .brand img { block-size: 56px; }
  h1 { font-size: 42px; }
}