/* Demonstração — academic-stone editorial */

:root {
  --primary: #242423;
  --accent: #F5CB5C;
  --bg: #E8EDDF;
  --text: #333533;
  --muted: #A4AC86;
  --white: #fafaf8;
  --border: rgba(36, 36, 35, 0.12);
  --shadow: 0 2px 12px rgba(36, 36, 35, 0.08);
  --shadow-hover: 0 4px 20px rgba(36, 36, 35, 0.12);
  --container: 720px;
  --space-xs: 12px;
  --space-sm: 24px;
  --space-md: 36px;
  --space-lg: 48px;
  --space-xl: 72px;
  --radius: 1px;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "Consolas", "Liberation Mono", monospace;
  --header-height: 64px;
  --header-height-shrink: 48px;
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 18px;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  color: var(--muted);
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.25;
  color: var(--primary);
  margin-top: 0;
}

h1 { font-size: 2.25rem; margin-bottom: var(--space-sm); }
h2 { font-size: 1.5rem; margin-bottom: var(--space-xs); margin-top: var(--space-md); }
h3 { font-size: 1.2rem; margin-bottom: var(--space-xs); margin-top: var(--space-sm); }

p { margin: 0 0 1.25em; }

ul, ol {
  margin: 0 0 1.25em;
  padding-left: 1.5em;
}

li { margin-bottom: 0.5em; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

/* Mono accent labels */
.label,
.tag,
.meta-label,
.toc-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tag {
  display: inline-block;
  color: var(--muted);
}

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

/* Header — minimal, sticky shrink */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: padding var(--transition), box-shadow var(--transition);
}

.site-header.is-shrunk {
  box-shadow: var(--shadow);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  padding: var(--space-sm);
  min-height: var(--header-height);
  transition: min-height var(--transition), padding var(--transition);
}

.site-header.is-shrunk .site-header__inner {
  min-height: var(--header-height-shrink);
  padding-top: var(--space-xs);
  padding-bottom: var(--space-xs);
}

.site-logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: font-size var(--transition);
}

.site-header.is-shrunk .site-logo {
  font-size: 1.15rem;
}

.site-nav {
  display: flex;
  gap: var(--space-sm);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--primary);
  text-decoration: underline;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  cursor: pointer;
  color: var(--primary);
  border-radius: var(--radius);
}

/* Hero — text-only lead */
.hero {
  padding: var(--space-xl) 0 var(--space-lg);
}

.hero__label {
  color: var(--muted);
  margin-bottom: var(--space-xs);
}

.hero__title {
  max-width: 18ch;
}

.hero__lead {
  font-size: 1.15rem;
  color: var(--text);
  max-width: 42ch;
  margin-top: var(--space-sm);
}

.hero__meta {
  margin-top: var(--space-md);
  color: var(--muted);
  font-size: 0.85rem;
}

/* Feed — numbered list, shadowed cards, no images */
.feed {
  padding-bottom: var(--space-xl);
}

.feed__heading {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
}

.feed-list {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: feed-counter;
}

.feed-item {
  counter-increment: feed-counter;
  margin-bottom: var(--space-md);
}

.feed-card {
  display: block;
  background: var(--white);
  padding: var(--space-md);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
  padding-left: calc(var(--space-md) + 2rem);
}

.feed-card:hover {
  box-shadow: var(--shadow-hover);
  color: inherit;
}

.feed-card::before {
  content: counter(feed-counter, decimal-leading-zero);
  position: absolute;
  left: var(--space-sm);
  top: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

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

.feed-card__title {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  color: var(--primary);
  margin: 0 0 var(--space-xs);
  line-height: 1.3;
}

.feed-card__excerpt {
  font-size: 0.95rem;
  color: var(--text);
  margin: 0 0 var(--space-xs);
}

.feed-card__meta {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Magazine breakout */
.breakout {
  width: calc(100% + var(--space-lg));
  margin-left: calc(var(--space-lg) / -2);
  padding: var(--space-md);
  background: var(--white);
  border-left: 3px solid var(--accent);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

@media (max-width: 800px) {
  .breakout {
    width: 100%;
    margin-left: 0;
  }
}

/* Article list page */
.article-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: article-counter;
}

.article-grid li {
  counter-increment: article-counter;
  margin-bottom: var(--space-md);
}

.article-grid--spaced {
  margin-top: var(--space-md);
}

/* Page sections */
.page-section {
  padding: var(--space-lg) 0 var(--space-xl);
}

.page-section--narrow {
  max-width: var(--container);
  margin: 0 auto;
}

.prose {
  max-width: 65ch;
}

.prose--wide {
  max-width: none;
}

/* Article layout — minimalist reading + sticky TOC */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: var(--space-lg);
  align-items: start;
  padding: var(--space-lg) 0 var(--space-xl);
}

.article-main {
  min-width: 0;
}

.article-header {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
}

.article-header h1 {
  font-size: 2rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-sm);
  align-items: center;
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: var(--muted);
}

.article-author {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--primary);
}

.article-body h2 {
  scroll-margin-top: calc(var(--header-height) + var(--space-sm));
}

.article-body p.lead {
  font-size: 1.12rem;
  line-height: 1.65;
}

.article-updated {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

/* Sticky TOC */
.article-toc {
  position: sticky;
  top: calc(var(--header-height) + var(--space-sm));
  padding: var(--space-sm);
  border-left: 1px solid var(--border);
}

.article-toc__title {
  color: var(--muted);
  margin-bottom: var(--space-xs);
}

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

.article-toc li {
  margin-bottom: 0.4em;
}

.article-toc a {
  font-size: 0.78rem;
  text-decoration: none;
  color: var(--muted);
  line-height: 1.4;
  display: block;
}

.article-toc a:hover,
.article-toc a.is-active {
  color: var(--primary);
  text-decoration: underline;
}

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

.related h2 {
  font-size: 1.1rem;
  margin-top: 0;
}

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

.related li {
  margin-bottom: var(--space-xs);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
}

.related a {
  text-decoration: none;
  font-family: var(--font-serif);
  font-size: 1rem;
}

.related a:hover {
  text-decoration: underline;
}

/* Contact form — editorial text links only, no buttons */
.contact-email {
  font-family: var(--font-mono);
  font-size: 1rem;
}

.contact-block {
  margin-bottom: var(--space-md);
}

/* Footer — minimal single */
.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--space-md) 0 var(--space-lg);
  margin-top: auto;
}

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

.site-footer__brand {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: var(--space-xs);
}

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

.site-footer__links a {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--muted);
}

.site-footer__links a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.site-footer__copy {
  font-size: 0.75rem;
  color: var(--muted);
  font-family: var(--font-mono);
}

/* Cookie corner popup */
.cookie-notice {
  position: fixed;
  bottom: var(--space-sm);
  right: var(--space-sm);
  max-width: 320px;
  background: var(--primary);
  color: var(--white);
  padding: var(--space-sm);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  z-index: 200;
  transform: translateY(calc(100% + var(--space-lg)));
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.cookie-notice.is-visible {
  transform: translateY(0);
  opacity: 1;
}

.cookie-notice.is-hidden {
  display: none;
}

.cookie-notice p {
  font-size: 0.82rem;
  line-height: 1.5;
  margin-bottom: var(--space-xs);
}

.cookie-notice a {
  color: var(--accent);
}

.cookie-notice__actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-xs);
}

.cookie-notice__accept,
.cookie-notice__decline {
  background: none;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 0;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cookie-notice__decline {
  color: var(--muted);
}

/* Decorative hero SVG */
.hero-illustration {
  margin-top: var(--space-md);
  opacity: 0.6;
  max-width: 280px;
}

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

.text-muted {
  color: var(--muted);
}

/* Responsive */
@media (max-width: 768px) {
  html { font-size: 16px; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: var(--space-sm);
    gap: var(--space-xs);
  }

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

  .nav-toggle {
    display: block;
  }

  .site-header__inner {
    position: relative;
    flex-wrap: wrap;
  }

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

  .article-toc {
    position: static;
    border-left: none;
    border-top: 1px solid var(--border);
    padding-top: var(--space-sm);
    order: -1;
  }

  h1 { font-size: 1.75rem; }
}