/* Конституция РФ — стили для страницы правового справочника */
@import url("https://fonts.googleapis.com/css2?family=PT+Sans:wght@400;600;700&family=PT+Serif:ital,wght@0,400;0,700;1,400&display=swap");

:root {
  --color-bg: #f8f6f1;
  --color-paper: #fffef9;
  --color-text: #1a1a1a;
  --color-text-muted: #4a4a4a;
  --color-accent: #2c5282;
  --color-accent-hover: #1a365d;
  --color-border: #e2dfd9;
  --color-highlight-bg: #e8f0f7;
  --font-sans: "PT Sans", "Helvetica Neue", Arial, sans-serif;
  --font-serif: "PT Serif", "Georgia", serif;
  --nav-width: 12rem;
  --content-max: 42rem;
  --space: 1.25rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  background: linear-gradient(180deg, #2c5282 0%, #1a365d 100%);
  color: #fff;
  padding: 1.5rem var(--space) 2rem;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.site-header h1 {
  margin: 0 0 0.35em;
  font-family: var(--font-sans);
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.chapter-title {
  margin: 0;
  font-size: 1rem;
  opacity: 0.92;
  font-weight: 400;
}

.layout {
  display: flex;
  flex: 1;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 0 var(--space);
}

/* Боковая навигация по статьям */
.article-nav {
  flex-shrink: 0;
  width: var(--nav-width);
  padding: var(--space) 0;
  position: sticky;
  top: 0;
  max-height: 100vh;
  overflow-y: auto;
}

.article-nav h2 {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin: 0 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.article-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.article-nav li {
  margin: 0;
}

.article-nav a {
  display: block;
  padding: 0.35rem 0;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-accent);
  text-decoration: none;
  border-radius: 4px;
  transition: color 0.15s, background 0.15s;
}

.article-nav a:hover {
  color: var(--color-accent-hover);
  background: rgba(44, 82, 130, 0.08);
}

.article-nav a:active {
  color: var(--color-accent-hover);
}

/* Основной контент */
.content {
  flex: 1;
  min-width: 0;
  padding: var(--space) 0 3rem;
  margin-left: 2rem;
}

.article {
  background: var(--color-paper);
  padding: 1.5rem 1.75rem;
  margin-bottom: 1.25rem;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--color-border);
}

.article--highlight {
  border-left: 4px solid var(--color-accent);
  background: var(--color-highlight-bg);
}

.article h2 {
  margin: 0 0 1rem;
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-accent);
}

.article p {
  margin: 0 0 0.75em;
}

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

.site-footer {
  padding: 1rem var(--space) 1.5rem;
  text-align: center;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  background: var(--color-paper);
  border-top: 1px solid var(--color-border);
}

/* Адаптив: на узких экранах навигация сверху */
@media (max-width: 768px) {
  .layout {
    flex-direction: column;
    padding: 0 1rem;
  }

  .article-nav {
    position: static;
    width: 100%;
    max-height: none;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 0.5rem;
  }

  .article-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem 0.75rem;
  }

  .article-nav a {
    padding: 0.25rem 0.5rem;
  }

  .content {
    margin-left: 0;
    padding-top: 0.5rem;
  }

  .article {
    padding: 1.25rem 1.25rem;
  }

  body {
    font-size: 16px;
  }
}