/* Общие стили страниц «О сервисе» и «Политика конфиденциальности» */
/* Темы: data-theme="dark" | data-theme="light" на <html> */

:root,
[data-theme="dark"] {
  --bg: #0f1115;
  --card: #161920;
  --border: #1c1f26;
  --text: #e8eaed;
  --muted: #9aa0a6;
  --accent: #4a9eff;
  --heading: #ffffff;
  --toggle-bg: #1c1f26;
  --toggle-border: #2a2f3a;
}

[data-theme="light"] {
  --bg: #f4f6f9;
  --card: #ffffff;
  --border: #e2e6ee;
  --text: #1a1d24;
  --muted: #5f6673;
  --accent: #2b6cb0;
  --heading: #0f1115;
  --toggle-bg: #ffffff;
  --toggle-border: #d0d5dd;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  color-scheme: dark light;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  padding: 32px 16px 64px;
  min-height: 100vh;
  transition: background 0.2s ease, color 0.2s ease;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
}

/* Шапка */
header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

header .top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

header a.back {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
}

header a.back:hover {
  text-decoration: underline;
}

h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
  color: var(--heading);
}

.lead,
.updated {
  color: var(--muted);
  font-size: 1.05rem;
}

.updated {
  font-size: 0.9rem;
}

/* Заголовки секций */
h2 {
  font-size: 1.15rem;
  font-weight: 600;
  margin: 36px 0 12px;
  color: var(--heading);
}

p,
ul {
  margin-bottom: 14px;
}

ul {
  padding-left: 1.25rem;
}

li {
  margin-bottom: 6px;
}

strong {
  color: var(--heading);
  font-weight: 600;
}

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

a:hover {
  text-decoration: underline;
}

/* Карточки */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 22px;
  margin: 16px 0;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.card p:last-child {
  margin-bottom: 0;
}

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

/* Блок возможностей (about) */
.features {
  display: grid;
  gap: 12px;
  margin: 16px 0;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 18px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.feature span.icon {
  font-size: 1.35rem;
  line-height: 1;
  flex-shrink: 0;
}

.feature strong {
  display: block;
  color: var(--heading);
  margin-bottom: 2px;
}

.feature p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--muted);
}

/* Переключатель темы */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--toggle-bg);
  border: 1px solid var(--toggle-border);
  border-radius: 999px;
  padding: 6px 12px 6px 10px;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
  font-family: inherit;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  user-select: none;
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-toggle .theme-icon {
  font-size: 1rem;
  line-height: 1;
}

/* Подвал */
footer {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

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

footer p + p {
  margin-top: 8px;
}

/* Мобильная адаптация */
@media (max-width: 480px) {
  body {
    padding: 20px 12px 48px;
  }

  h1 {
    font-size: 1.45rem;
  }

  .card,
  .feature {
    padding: 14px 16px;
  }
}

/* Language selector + top controls */
.top-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.lang-wrap {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.lang-wrap .lang-label {
  white-space: nowrap;
}

.lang-wrap select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--toggle-bg);
  color: var(--text);
  border: 1px solid var(--toggle-border);
  border-radius: 8px;
  padding: 6px 28px 6px 10px;
  font-size: 0.85rem;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239aa0a6' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  min-width: 110px;
}

.lang-wrap select:focus {
  outline: none;
  border-color: var(--accent);
}

@media (max-width: 480px) {
  header .top-row {
    flex-direction: column;
    align-items: flex-start;
  }
  .top-controls {
    width: 100%;
    justify-content: space-between;
  }
}
