/* Тестовый сайт AI-стартапа в горнодобывающей отрасли
   Тёплая палитра, минимализм, только системные шрифты */

:root {
  --bg: #faf6f0;
  --bg-soft: #f2eadf;
  --ink: #2b2420;
  --ink-soft: #5c524a;
  --muted: #8a7f74;
  --line: #e4d9ca;
  --accent: #c2641f;
  --accent-dark: #9a4d14;
  --card: #fffdf9;
  --max: 1040px;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--accent-dark);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

h1, h2, h3 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.6em;
}

h1 { font-size: 2.3rem; }
h2 { font-size: 1.5rem; margin-top: 2.2rem; }
h3 { font-size: 1.15rem; }

p {
  margin: 0 0 1em;
}

ul, ol {
  padding-left: 1.3em;
  margin: 0 0 1.2em;
}

li {
  margin-bottom: 0.35em;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  background: var(--bg-soft);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Шапка */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 18px;
  padding-bottom: 18px;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.01em;
}

.brand:hover,
.brand:focus-visible {
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 22px;
}

.site-nav li {
  margin: 0;
}

.site-nav a {
  color: var(--ink-soft);
  font-size: 0.97rem;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  color: var(--accent-dark);
  text-decoration: none;
}

.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* Основное содержимое */

main {
  flex: 1 0 auto;
  padding: 56px 0 72px;
}

.lead {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 44rem;
}

.hero {
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 24px;
}

.hero h1 {
  max-width: 20ch;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 14px;
}

.button {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 500;
  margin-top: 8px;
}

.button:hover,
.button:focus-visible {
  background: var(--accent-dark);
  color: #fff;
  text-decoration: none;
}

.button-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  margin-left: 10px;
}

.button-ghost:hover,
.button-ghost:focus-visible {
  background: var(--bg-soft);
  color: var(--accent-dark);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin: 24px 0 8px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 22px 16px;
}

.card h3 {
  margin-bottom: 0.4em;
}

.card p {
  color: var(--ink-soft);
  font-size: 0.97rem;
  margin-bottom: 0.4em;
}

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
  margin: 24px 0;
}

.stat {
  padding: 18px 0 0;
  border-top: 2px solid var(--accent);
}

.stat strong {
  display: block;
  font-size: 1.9rem;
  font-weight: 600;
  line-height: 1.1;
}

.stat span {
  color: var(--muted);
  font-size: 0.92rem;
}

.prose {
  max-width: 46rem;
}

.prose h2:first-child {
  margin-top: 0;
}

.quiet {
  color: var(--muted);
  font-size: 0.92rem;
}

/* Заметки */

.note {
  border-top: 1px solid var(--line);
  padding: 28px 0 8px;
  max-width: 46rem;
}

.note:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.note h2 {
  margin-top: 0;
}

.note time {
  display: block;
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 10px;
}

/* Команда */

.people {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.people li {
  margin: 0;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.people strong {
  display: block;
}

.people span {
  color: var(--ink-soft);
  font-size: 0.93rem;
}

/* Страница 404 */

.not-found {
  text-align: center;
  padding: 40px 0;
}

.not-found .code {
  font-size: 5rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.03em;
}

.not-found p {
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
}

/* Подвал */

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 24px;
  padding-top: 22px;
  padding-bottom: 26px;
}

.site-footer ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 18px;
}

.site-footer li {
  margin: 0;
}

.site-footer a {
  color: var(--ink-soft);
}

@media (max-width: 600px) {
  html { font-size: 16px; }
  h1 { font-size: 1.85rem; }
  main { padding: 36px 0 56px; }
  .site-nav ul { gap: 16px; }
  .button-ghost { margin-left: 0; margin-top: 10px; }
}