/* Craft Brasil — editorial stylesheet (craftbr.click) */

:root {
  --primary: #2D3142;
  --accent: #BFC0C0;
  --bg: #FFFFFF;
  --text: #1F2430;
  --muted: #8D99AE;
  --border: #E4E6EA;
  --border-light: #F0F1F3;
  --space-2xs: 8px;
  --space-xs: 12px;
  --space-sm: 24px;
  --space-md: 36px;
  --space-lg: 48px;
  --space-xl: 72px;
  --space-2xl: 96px;
  --radius: 0;
  --container: 720px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --line-height: 1.7;
  --line-height-tight: 1.28;
  --line-height-heading: 1.22;
  --transition: 0.18s ease;
  --shadow-none: none;
}

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

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: var(--line-height);
  color: var(--text);
  background-color: var(--bg);
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

h1,
h2,
h3,
h4 {
  color: var(--primary);
  line-height: var(--line-height-heading);
  font-weight: 600;
  margin-top: 0;
}

h1 {
  font-size: clamp(1.75rem, 4.2vw, 2.3125rem);
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(1.375rem, 3vw, 1.6875rem);
  margin-bottom: var(--space-xs);
}

h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-xs);
}

p {
  margin: 0 0 var(--space-sm);
}

ul,
ol {
  margin: 0 0 var(--space-sm);
  padding-left: 1.35rem;
}

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

li:last-child {
  margin-bottom: 0;
}

blockquote {
  margin: var(--space-md) 0;
  padding-left: var(--space-sm);
  border-left: 3px solid var(--accent);
  color: var(--muted);
  font-style: normal;
}

hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: var(--space-lg) 0;
}

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

/* Accessibility skip */
.skip-link {
  position: absolute;
  top: -120%;
  left: var(--space-sm);
  background: var(--primary);
  color: var(--bg);
  padding: var(--space-xs) var(--space-sm);
  z-index: 300;
  text-decoration: none;
  font-size: 0.875rem;
}

.skip-link:focus {
  top: var(--space-xs);
  color: var(--bg);
}

/* Site header — minimal */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: var(--space-sm) 0;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  position: relative;
}

.site-logo {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -0.018em;
  white-space: nowrap;
}

.site-logo:hover,
.site-logo:focus-visible {
  color: var(--primary);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.menu-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav {
  display: none;
  position: absolute;
  top: calc(100% + 1px);
  left: calc(-1 * var(--space-sm));
  right: calc(-1 * var(--space-sm));
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: var(--space-sm);
  box-shadow: var(--shadow-none);
}

.main-nav.is-open {
  display: block;
}

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
}

.nav-list a {
  display: block;
  padding: var(--space-xs) 0;
  text-decoration: none;
  color: var(--text);
  border-bottom: 2px solid transparent;
  font-size: 0.9375rem;
  transition: color var(--transition), border-color var(--transition);
}

.nav-list a:hover,
.nav-list a[aria-current="page"] {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* Main layout */
main {
  padding: var(--space-lg) 0 var(--space-xl);
  flex: 1;
  min-height: 50vh;
}

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

.page-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: var(--space-xs);
}

.page-lead {
  font-size: 1.1875rem;
  color: var(--muted);
  max-width: 38em;
  line-height: var(--line-height);
}

/* Hero — text-only lead */
.hero {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.hero-title {
  margin-bottom: var(--space-sm);
  max-width: 18ch;
}

.hero-text {
  font-size: 1.1875rem;
  color: var(--muted);
  max-width: 36em;
}

/* Numbered article feed */
.feed-section {
  margin-bottom: var(--space-xl);
}

.section-heading {
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

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

.article-feed-item {
  counter-increment: craft-feed;
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
}

.article-feed-item:first-child {
  padding-top: 0;
}

.article-feed-item:last-child {
  border-bottom-color: var(--border-light);
}

.article-feed-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.article-feed-link::before {
  content: counter(craft-feed, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--muted);
  display: block;
  margin-bottom: var(--space-xs);
  letter-spacing: 0.04em;
}

.article-feed-title {
  font-size: 1.25rem;
  color: var(--primary);
  margin: 0 0 var(--space-xs);
  font-weight: 600;
  line-height: var(--line-height-tight);
}

.article-feed-link:hover .article-feed-title,
.article-feed-link:focus-visible .article-feed-title {
  color: var(--muted);
}

.article-meta {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-sm);
  letter-spacing: 0.02em;
}

.article-meta time {
  font-variant-numeric: tabular-nums;
}

.article-excerpt {
  margin: var(--space-xs) 0 0;
  color: var(--text);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* Content sections — airy spacing */
.content-section {
  margin-bottom: var(--space-xl);
}

.content-section:last-child {
  margin-bottom: 0;
}

.featured-block,
.related-block {
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

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

.related-list li {
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--border);
  margin: 0;
}

.related-list li:last-child {
  border-bottom: none;
}

.related-list a {
  text-decoration: none;
  color: var(--primary);
  font-weight: 500;
  font-size: 0.96875rem;
}

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

/* Article reading — minimalist */
.article-header {
  margin-bottom: var(--space-lg);
}

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

.article-body h2 {
  margin-top: var(--space-lg);
}

.article-body h3 {
  margin-top: var(--space-md);
}

.article-updated {
  margin-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.article-author {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border);
  font-size: 0.9375rem;
  color: var(--muted);
}

.author-name {
  font-weight: 600;
  color: var(--primary);
}

/* Flat info cards */
.info-card {
  padding: var(--space-sm);
  border: 1px solid var(--border);
  margin-bottom: var(--space-sm);
  border-radius: var(--radius);
  background: var(--bg);
}

.info-card h3 {
  margin-top: 0;
  font-size: 1rem;
}

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

/* Contact page */
.contact-block {
  margin-top: var(--space-md);
}

.contact-email {
  font-family: var(--font-mono);
  font-size: 1rem;
  word-break: break-all;
  color: var(--primary);
}

/* Legal / policy prose */
.legal-body h2 {
  margin-top: var(--space-lg);
}

.legal-body h2:first-of-type {
  margin-top: var(--space-md);
}

.legal-body ul {
  padding-left: 1.5rem;
}

/* Articles index */
.articles-index .article-feed-item {
  padding: var(--space-sm) 0;
}

/* Abstract editorial figures — no-image minimal */
.editorial-figure {
  margin: var(--space-lg) 0;
  color: var(--accent);
}

.editorial-figure svg {
  width: 100%;
  height: auto;
}

.thumb-figure {
  margin: var(--space-md) 0 var(--space-lg);
}

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

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

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

.footer-nav a {
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--muted);
}

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

.footer-copy {
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 0;
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

.cookie-notice {
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 0;
  padding-top: var(--space-xs);
  border-top: 1px solid var(--border);
  line-height: 1.55;
  cursor: pointer;
}

.cookie-notice[hidden] {
  display: none;
}

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

/* Utility classes */
.prose-narrow {
  max-width: 38em;
}

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

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

/* Definition list for contact */
.dl-plain {
  margin: var(--space-md) 0;
}

.dl-plain dt {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: var(--space-2xs);
}

.dl-plain dd {
  margin: 0 0 var(--space-sm);
  font-size: 1rem;
}

/* Table — comparison snippets in articles */
.data-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-md) 0;
  font-size: 0.9375rem;
}

.data-table th,
.data-table td {
  padding: var(--space-xs) var(--space-2xs);
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

.data-table th {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 500;
}

/* Print styles */
@media print {
  .site-header,
  .site-footer,
  .menu-toggle,
  .cookie-notice,
  .skip-link {
    display: none;
  }

  main {
    padding: 0;
  }

  a {
    text-decoration: underline;
  }
}

/* Breakpoint: small phones landscape / large phones */
@media (min-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero-title {
    max-width: none;
  }

  .page-label {
    font-size: 0.75rem;
  }

  .article-meta {
    font-size: 0.75rem;
  }
}

/* Breakpoint: tablet */
@media (min-width: 768px) {
  .menu-toggle {
    display: none;
  }

  .main-nav {
    display: block;
    position: static;
    border: none;
    padding: 0;
    background: transparent;
    left: auto;
    right: auto;
  }

  .nav-list {
    flex-direction: row;
    gap: var(--space-sm);
    align-items: center;
  }

  .nav-list a {
    padding: var(--space-xs) 0;
    white-space: nowrap;
  }

  .site-header {
    position: static;
  }

  .header-inner {
    flex-wrap: nowrap;
  }

  .hero {
    margin-bottom: var(--space-2xl);
  }

  .feed-section {
    margin-bottom: var(--space-2xl);
  }
}

/* Breakpoint: desktop */
@media (min-width: 1024px) {
  body {
    font-size: 1.125rem;
  }

  main {
    padding: var(--space-xl) 0 var(--space-2xl);
  }

  .site-logo {
    font-size: 1.125rem;
  }

  .hero-text,
  .page-lead {
    font-size: 1.25rem;
  }

  .article-feed-title {
    font-size: 1.3125rem;
  }

  .content-section {
    margin-bottom: var(--space-2xl);
  }

  .data-table {
    font-size: 1rem;
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms;
  }
}