:root {
  color-scheme: light dark;
  --text: #1c1b19;
  --muted: #6b6860;
  --bg: #fbfaf7;
  --line: #dedbd3;
  --link: #1f4fa3;
  --danger: #b3261e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --text: #e9e6df;
    --muted: #a19d93;
    --bg: #171614;
    --line: #36342f;
    --link: #8fb4f2;
    --danger: #e5776f;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1.125rem;
  line-height: 1.6;
}

main {
  max-width: 38rem;
  margin: 0 auto;
  padding: 4rem 1.25rem 5rem;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: 2.5rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
  line-height: 1.3;
}

p {
  margin: 0 0 1rem;
}

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

.lead {
  color: var(--muted);
  font-size: 1.25rem;
  line-height: 1.45;
}

.manifest {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

.tag {
  margin-left: 0.4rem;
  padding: 0.1rem 0.5rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 400;
  vertical-align: middle;
}

@media (max-width: 30rem) {
  main {
    padding-top: 2.5rem;
  }

  h1 {
    font-size: 2rem;
  }
}

/* Шапка и подвал */

.site-header,
.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 38rem;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  font-size: 1rem;
}

.site-header .brand {
  color: var(--text);
  font-weight: 600;
  text-decoration: none;
}

.account {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-width: 0;
}

.account form {
  margin: 0;
}

.account-name {
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.site-footer {
  padding-bottom: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-header + main {
  padding-top: 2rem;
}

/* Формы и кнопки */

.button,
.link-button,
input[type="text"] {
  font: inherit;
}

.button {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--text);
  border-radius: 0.5rem;
  background: var(--text);
  color: var(--bg);
  cursor: pointer;
  text-decoration: none;
}

.button.danger {
  border-color: var(--danger);
  background: var(--danger);
  color: #fff;
}

.link-button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--link);
  cursor: pointer;
  text-decoration: underline;
}

input[type="text"] {
  flex: 1;
  min-width: 0;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
  background: var(--bg);
  color: var(--text);
}

.inline-form,
.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1rem;
}

.block {
  margin-top: 2rem;
}

.muted {
  color: var(--muted);
  font-size: 1rem;
}

.notice {
  padding: 0.75rem 1rem;
  border: 1px solid var(--line);
  border-radius: 0.5rem;
}

.error {
  color: var(--danger);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}