/* Anual Brasil — research-publication editorial stylesheet */

/* 1. Design tokens */
:root {
  --primary: #283618;
  --accent: #606C38;
  --bg: #FEFAE0;
  --text: #1A1A0E;
  --muted: #7A8450;
  --border: #D4D0B8;
  --surface: #F5F0D6;

  --space-xs: 12px;
  --space-sm: 24px;
  --space-md: 36px;
  --space-lg: 48px;
  --space-xl: 72px;

  --radius: 2px;
  --container: 1140px;

  --font-serif: Georgia, "Times New Roman", Times, serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --line-height: 1.65;
  --transition: 0.2s ease;
}

/* 2. Minimal reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: var(--line-height);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--accent);
}

ul,
ol {
  padding-left: 1.25rem;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote {
  margin: 0 0 var(--space-xs);
}

/* 3. Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--primary);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.375rem, 3vw, 2rem); }
h3 { font-size: clamp(1.125rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

.lead {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 42rem;
}

.meta {
  font-size: 0.875rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

/* 4. Layout / grid */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-sm);
}

.grid {
  display: grid;
  gap: var(--space-sm);
}

.grid-12 {
  grid-template-columns: repeat(12, 1fr);
}

.col-span-12 { grid-column: span 12; }
.col-span-8 { grid-column: span 12; }
.col-span-4 { grid-column: span 12; }
.col-span-6 { grid-column: span 12; }

.section {
  padding-block: var(--space-lg);
}

.section--tight {
  padding-block: var(--space-md);
}

/* 5. Components */

/* Header — centered-logo */
.site-header {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-block: var(--space-sm);
  gap: var(--space-xs);
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.site-logo:hover {
  color: var(--accent);
}

/* Nav — horizontal-underline */
.site-nav {
  width: 100%;
}

.site-nav__toggle {
  display: block;
  margin-inline: auto;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--space-xs) var(--space-sm);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--primary);
  cursor: pointer;
}

.site-nav__list {
  display: none;
  list-style: none;
  margin: 0;
  padding: var(--space-xs) 0 0;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs) var(--space-sm);
}

.site-nav__list.is-open {
  display: flex;
}

.site-nav__link {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--text);
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  border-bottom-color: var(--accent);
  color: var(--primary);
}

/* Hero — split-image-text */
.hero {
  padding-block: var(--space-lg);
}

.hero__grid {
  display: grid;
  gap: var(--space-md);
  align-items: center;
}

.hero__image {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.hero__image img,
.hero__image svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__tag {
  margin-bottom: var(--space-xs);
}

.hero__title {
  margin-bottom: var(--space-xs);
}

.hero__excerpt {
  margin-bottom: var(--space-sm);
  max-width: 38rem;
}

/* Tag — bracket-label */
.tag {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.tag::before { content: "["; }
.tag::after { content: "]"; }

/* Button — text-link-only */
.btn-link {
  display: inline-block;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: var(--font-sans);
}

.btn-link:hover {
  color: var(--accent);
}

/* Cards — bordered, vertical-cards */
.card-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.card {
  display: grid;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  transition: border-color var(--transition);
}

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

.card__thumb {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.card__thumb img,
.card__thumb svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.card__title a {
  text-decoration: none;
  color: var(--primary);
}

.card__title a:hover {
  color: var(--accent);
}

.card__excerpt {
  font-size: 0.9375rem;
  color: var(--muted);
  margin-bottom: var(--space-xs);
}

/* Featured story — homepage */
.featured {
  padding-block: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.featured__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: var(--space-xs);
}

/* Article — pull-quote-led */
.article-header {
  padding-block: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.article-pull-quote {
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  line-height: 1.4;
  color: var(--primary);
  border-left: 3px solid var(--accent);
  padding-left: var(--space-sm);
  margin-block: var(--space-md);
  font-style: italic;
}

.article-body {
  padding-block: var(--space-md);
}

.article-body p {
  margin-bottom: var(--space-sm);
}

.article-body h2 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.article-body blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  border-left: 2px solid var(--border);
  padding-left: var(--space-sm);
  margin-block: var(--space-sm);
  color: var(--muted);
}

.article-layout {
  display: grid;
  gap: var(--space-md);
}

/* Sidebar — sticky-toc */
.sidebar {
  align-self: start;
}

.sidebar-toc {
  position: sticky;
  top: calc(var(--space-xl) + 40px);
  padding: var(--space-sm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.sidebar-toc__title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: var(--space-xs);
}

.sidebar-toc__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-toc__list li {
  margin-bottom: 0.5rem;
}

.sidebar-toc__list a {
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--text);
}

.sidebar-toc__list a:hover {
  color: var(--accent);
}

/* Author — sidebar-bio-box */
.author-bio {
  margin-top: var(--space-sm);
  padding: var(--space-sm);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
}

.author-bio__header {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
  margin-bottom: var(--space-xs);
}

.author-bio__avatar {
  width: 56px;
  height: 56px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--surface);
}

.author-bio__name {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary);
}

.author-bio__role {
  font-size: 0.8125rem;
  color: var(--muted);
}

.author-bio__text {
  font-size: 0.875rem;
  color: var(--text);
  margin: 0;
}

/* Related articles */
.related {
  padding-block: var(--space-md);
  border-top: 1px solid var(--border);
}

.related__title {
  margin-bottom: var(--space-sm);
}

.related__list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related__list li {
  padding-block: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.related__list a {
  text-decoration: none;
  font-family: var(--font-serif);
  color: var(--primary);
}

.related__list a:hover {
  color: var(--accent);
}

/* Page header */
.page-header {
  padding-block: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  margin-bottom: var(--space-xs);
}

/* Prose pages */
.prose {
  max-width: 42rem;
  padding-block: var(--space-md);
}

.prose p,
.prose ul,
.prose ol {
  margin-bottom: var(--space-sm);
}

.prose h2 {
  margin-top: var(--space-md);
}

/* Contact form */
.contact-form {
  max-width: 32rem;
  padding-block: var(--space-md);
}

.form-group {
  margin-bottom: var(--space-sm);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  color: var(--primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: var(--space-xs);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* Footer — editorial-masthead */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding-block: var(--space-lg);
  margin-top: var(--space-xl);
}

.footer-masthead {
  text-align: center;
  margin-bottom: var(--space-md);
}

.footer-masthead__name {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.25rem;
}

.footer-masthead__tagline {
  font-size: 0.875rem;
  color: var(--muted);
  font-style: italic;
}

.footer-grid {
  display: grid;
  gap: var(--space-sm);
  text-align: center;
}

.footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-xs) var(--space-sm);
}

.footer-nav a {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--text);
}

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

.footer-meta {
  font-size: 0.8125rem;
  color: var(--muted);
}

.footer-meta a {
  color: var(--muted);
}

/* Cookie — inline-footer-note */
.cookie-notice {
  display: none;
  padding: var(--space-xs) var(--space-sm);
  border-top: 1px solid var(--border);
  background: var(--bg);
  font-size: 0.8125rem;
  color: var(--muted);
  text-align: center;
}

.cookie-notice.is-visible {
  display: block;
}

.cookie-notice p {
  margin: 0;
}

/* Image — 3:2-editorial */
.editorial-image {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-block: var(--space-sm);
  background: var(--surface);
}

.editorial-image img,
.editorial-image svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 6. Utility */
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.text-center { text-align: center; }

.mt-md { margin-top: var(--space-md); }

/* 7. Media queries — mobile-first */
@media (min-width: 480px) {
  .card {
    grid-template-columns: 180px 1fr;
    align-items: start;
  }
}

@media (min-width: 768px) {
  .site-nav__toggle {
    display: none;
  }

  .site-nav__list {
    display: flex;
  }

  .hero__grid {
    grid-template-columns: 1fr 1fr;
  }

  .col-span-8 { grid-column: span 8; }
  .col-span-4 { grid-column: span 4; }
  .col-span-6 { grid-column: span 6; }

  .article-layout {
    grid-template-columns: 1fr 280px;
  }

  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    text-align: left;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (min-width: 1024px) {
  .hero__grid--reverse .hero__content {
    order: -1;
  }

  .section {
    padding-block: var(--space-xl);
  }
}