/* Sistema Gestão — erpbr.info */
:root {
  --primary: #4A5568;
  --accent: #68D391;
  --bg: #F8FAF7;
  --text: #1A202C;
  --muted: #A0AEC0;
  --white: #FFFFFF;
  --border: #E2E8F0;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --container: 720px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --line-height: 1.6;
  --line-height-tight: 1.3;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

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

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

a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

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

h1 { font-size: 1.75rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }

p {
  margin-top: 0;
  margin-bottom: var(--space-4);
}

ul, ol {
  margin-top: 0;
  margin-bottom: var(--space-4);
  padding-left: var(--space-5);
}

li {
  margin-bottom: var(--space-2);
}

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

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

/* Header — minimal */
.site-header {
  border-bottom: 1px solid var(--border);
  background-color: var(--white);
  padding: var(--space-4) 0;
}

.site-header .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.site-logo {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}

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

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  cursor: pointer;
  color: var(--text);
}

.menu-toggle svg {
  width: 20px;
  height: 20px;
}

/* Nav — horizontal underline */
.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.site-nav a {
  text-decoration: none;
  color: var(--primary);
  font-size: 0.9375rem;
  padding-bottom: var(--space-1);
  border-bottom: 2px solid transparent;
}

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

.site-nav {
  display: none;
  width: 100%;
  padding-top: var(--space-3);
}

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

/* Main */
main {
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
}

/* Hero — text-only-lead */
.hero {
  margin-bottom: var(--space-5);
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--primary);
  margin-bottom: var(--space-3);
}

.hero h1 {
  margin-bottom: var(--space-3);
}

.hero-desc {
  color: var(--primary);
  font-size: 1rem;
  max-width: 56ch;
}

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

.article-list li {
  counter-increment: article-counter;
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}

.article-list li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.article-list-item {
  display: grid;
  gap: var(--space-3);
}

.article-list-number::before {
  content: counter(article-counter, decimal-leading-zero);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.article-thumb {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--white);
  border: 1px solid var(--border);
}

.article-thumb img,
.article-thumb svg {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.article-title {
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
}

.article-title a {
  text-decoration: none;
  color: var(--text);
}

.article-title a:hover {
  color: var(--primary);
}

.article-excerpt {
  color: var(--primary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-3);
}

.article-meta {
  font-size: 0.8125rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  align-items: center;
}

.article-meta .author {
  color: var(--primary);
}

/* Cards — flat */
.card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.card-flat {
  background-color: transparent;
  border: none;
  padding: 0;
}

/* Article page — narrow reading */
.article-header {
  margin-bottom: var(--space-5);
}

.article-header h1 {
  font-size: 1.75rem;
  margin-bottom: var(--space-3);
}

.article-body {
  max-width: 65ch;
}

.article-body h2 {
  margin-top: var(--space-5);
  margin-bottom: var(--space-3);
}

.article-body h3 {
  margin-top: var(--space-4);
  margin-bottom: var(--space-2);
}

.article-featured-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-5);
  border: 1px solid var(--border);
}

.article-featured-img img,
.article-featured-img svg {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* Author byline — minimal name only */
.author-byline {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.author-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border);
}

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

.author-name {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}

/* Related articles */
.related-articles {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
}

.related-articles h2 {
  font-size: 1.125rem;
  margin-bottom: var(--space-4);
}

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

.related-list li {
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}

.related-list li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

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

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

.related-list .meta {
  font-size: 0.8125rem;
  color: var(--muted);
  margin-top: var(--space-1);
}

/* Buttons — text-link only */
.btn-link {
  display: inline;
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  cursor: pointer;
}

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

.text-link {
  font-size: 0.9375rem;
  font-weight: 500;
}

/* Page content */
.page-header {
  margin-bottom: var(--space-5);
}

.page-header h1 {
  margin-bottom: var(--space-3);
}

.page-content {
  max-width: 65ch;
}

.page-content h2 {
  margin-top: var(--space-5);
  margin-bottom: var(--space-3);
}

/* Contact form */
.contact-form label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--space-1);
  color: var(--text);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: var(--white);
  color: var(--text);
  margin-bottom: var(--space-4);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-info {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border);
}

/* Footer — minimal single */
.site-footer {
  border-top: 1px solid var(--border);
  background-color: var(--white);
  padding: var(--space-5) 0;
  margin-top: var(--space-5);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-4);
}

.footer-nav a {
  font-size: 0.8125rem;
  text-decoration: none;
  color: var(--primary);
}

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

.footer-copy {
  font-size: 0.8125rem;
  color: var(--muted);
  margin: 0;
}

/* Cookie — inline footer note */
.cookie-notice {
  font-size: 0.75rem;
  color: var(--muted);
  padding: var(--space-3) 0 0;
  border-top: 1px solid var(--border);
  margin-top: var(--space-3);
  line-height: 1.5;
}

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

/* Articles archive */
.archive-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.archive-list li {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

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

/* Utility */
.text-muted {
  color: var(--muted);
  font-size: 0.875rem;
}

.section-title {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin-bottom: var(--space-4);
}

/* Media queries */
@media (min-width: 480px) {
  h1 { font-size: 2rem; }
  .hero-lead { font-size: 1.25rem; }
  .article-header h1 { font-size: 2rem; }
}

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

  .site-nav {
    display: block;
    width: auto;
    padding-top: 0;
  }

  .article-list-item {
    grid-template-columns: 200px 1fr;
    align-items: start;
  }

  .article-list-number::before {
    grid-column: 1 / -1;
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .container {
    padding-left: var(--space-5);
    padding-right: var(--space-5);
  }

  .article-list-item {
    grid-template-columns: 240px 1fr;
  }
}