:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #f0f4fa;
  --text: #1f2937;
  --muted: #5f6c80;
  --border: #ffffff;
  --accent: #0f4c81;
  --accent-strong: #0a3558;
  --shadow: 0 12px 30px rgba(15, 76, 129, 0.1);
}

body.dark {
  --bg: #0e1623;
  --surface: #0e1623;
  --surface-soft: #1d2838;
  --text: #e6ebf4;
  --muted: #a7b4c7;
  --border: #0e1623;
  --accent: #6fb5ff;
  --accent-strong: #9dcfff;
  --shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(15, 76, 129, 0.14), transparent 48%),
    radial-gradient(circle at bottom right, rgba(42, 124, 196, 0.12), transparent 42%),
    var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: inherit;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 1100;
  padding: 0.65rem 0.9rem;
  border-radius: 8px;
  background: var(--accent-strong);
  color: #ffffff;
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: min(980px, 92vw);
  margin: 0 auto;
}

.site-header {
  background: var(--surface);
  width: 100%;
}

.site-header .container {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0 clamp(1rem, 3vw, 2.5rem);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
  padding: 0.75rem 0;
  flex-wrap: wrap;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  text-decoration: none;
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: clamp(1.05rem, 2.5vw, 1.35rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.025em;
  white-space: nowrap;
  z-index: 1;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: flex-end;
  margin-left: auto;
  z-index: 1;
}

.header-right .site-nav {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.site-nav ul,
.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.site-nav a,
.footer-links a {
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  text-decoration: none;
  color: var(--muted);
  border-radius: 5px;
  padding: 0.35rem 0.7rem;
  font-size: 0.92rem;
}

.site-nav a[aria-current="page"] {
  color: var(--text);
  font-weight: 700;
  background: var(--surface-soft);
}

.site-nav a:hover,
.site-nav a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--text);
  border-color: var(--border);
  background: var(--surface-soft);
}

.theme-toggle {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text);
  border-radius: 10px;
  padding: 0;
  inline-size: 2.75rem;
  block-size: 2.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  white-space: nowrap;
  text-indent: -9999px;
  font: inherit;
  font-size: 1rem;
  cursor: pointer;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  color: var(--accent);
}

.theme-toggle::before {
  content: "☾";
  font-family: Helvetica, Arial, sans-serif;
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 1;
  color: currentColor;
  text-indent: 0;
}

body.dark .theme-toggle::before {
  content: "☀";
}

.site-main {
  flex: 1;
  padding: 2.5rem 0;
}

.main-centered {
  display: flex;
  align-items: center;
}

.home-stack {
  display: grid;
  gap: 1.5rem;
}

.home-hero {
  padding: clamp(1.6rem, 2.2vw + 1rem, 2.6rem);
}

.hero-copy {
  max-width: 60ch;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0;
}

.section-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.95rem;
}

.section-link:hover,
.section-link:focus-visible {
  color: var(--accent-strong);
  text-decoration: underline;
}

.panel.recent-posts-section {
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: clamp(1.6rem, 2.2vw + 1rem, 2.6rem);
}

#recent-posts-list {
  min-block-size: 8.5rem;
}

.recent-posts-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  margin-top: 1.8rem;
}

.recent-post-item {
  min-width: 0;
  border-top: 0;
  padding: 0;
}

.recent-post-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.recent-post-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 0 0 0.8rem;
}

.recent-post-item h3 {
  margin: 0;
  font-size: 1.06rem;
  line-height: 1.3;
  transition: color 0.2s ease;
}

.recent-post-link:hover h3,
.recent-post-link:focus-visible h3 {
  color: var(--accent);
}

.panel {
  background: var(--surface);
  border-radius: 18px;
  padding: clamp(1.3rem, 2vw + 1rem, 2.2rem);
  box-shadow: var(--shadow);
}

.kicker {
  margin: 0 0 0.4rem;
  color: var(--accent);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  margin: 0 0 0.8rem;
  color: var(--text);
}

h1 {
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  font-weight: 300;
}

h2 {
  font-size: clamp(1.3rem, 2.2vw, 1.7rem);
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.hero-summary {
	margin-bottom: 1.4rem;
	max-width: 56ch;
}

.home-focus {
	margin: 1.6rem 0;
	padding: 1rem 1.1rem;
	border-left: 3px solid var(--accent);
	background: var(--surface-soft);
	border-radius: 0 10px 10px 0;
}

.home-focus h2 {
	font-size: 1.05rem;
	margin-bottom: 0.45rem;
}

.home-focus ul {
	margin: 0;
	padding-left: 1.2rem;
	color: var(--muted);
}

.home-actions {
	display: flex;
	gap: 0.65rem;
	flex-wrap: wrap;
	margin-bottom: 1.5rem;
}

.home-action {
	display: inline-flex;
	align-items: center;
	gap: 0.5rem;
}

.home-action svg {
	width: 1rem;
	height: 1rem;
	fill: currentColor;
}

.home-about p {
	max-width: 68ch;
}

.quick-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.quick-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.08rem;
  background: var(--surface-soft);
}

.quick-links a:hover,
.quick-links a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.quick-links a:before {
  line-height: 1;
}

.quick-links svg {
  width: 1.15rem;
  height: 1.15rem;
  fill: currentColor;
}

.site-footer {
  background: var(--surface);
  margin-top: auto;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  flex-wrap: wrap;
}

.footer-text {
  color: var(--muted);
  font-size: 0.9rem;
}

.blog-toolbar {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin: 1.3rem 0 1rem;
}

.blog-search,
.blog-category {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-soft);
  color: var(--text);
  font: inherit;
  padding: 0.55rem 0.75rem;
}

.blog-search {
  width: min(420px, 100%);
  flex: 1;
}

.blog-category {
  min-width: 220px;
}

.blog-reset-link,
.back-link {
  color: var(--accent);
  font-size: 0.9rem;
  text-decoration: none;
}

.blog-reset-link:hover,
.blog-reset-link:focus-visible,
.back-link:hover,
.back-link:focus-visible {
  color: var(--accent-strong);
  text-decoration: underline;
}

.blog-status {
  margin: 0 0 1rem;
  font-size: 0.92rem;
}

.blog-status.is-error {
  color: #c24141;
}

.is-hidden {
  display: none !important;
}

.blog-post-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem;
}

.blog-post-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-soft);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.blog-post-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.blog-post-link {
  display: block;
  padding: 1rem;
  text-decoration: none;
}

.blog-post-thumb {
  border-radius: 10px;
  overflow: hidden;
  margin: 0 0 0.75rem;
  aspect-ratio: 16 / 9;
  background: rgba(128, 153, 185, 0.2);
}

.blog-post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.blog-post-thumb picture {
  display: block;
  width: 100%;
  height: 100%;
}

.blog-post-meta,
.blog-article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 0.6rem;
}

.breadcrumbs {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	margin: 0 0 1.25rem;
	color: var(--muted);
	font-size: 0.9rem;
}

.article-discovery {
	margin: 3rem auto 0;
	max-width: 896px;
	border-top: 1px solid var(--border);
	padding-top: 2rem;
}

.article-related-list {
	display: grid;
	gap: 0.75rem;
	margin: 1rem 0 0;
	padding: 0;
	list-style: none;
}

.article-related-list li {
	display: flex;
	justify-content: space-between;
	gap: 1rem;
	padding: 0.85rem 1rem;
	border: 1px solid var(--border);
	border-radius: 0.75rem;
}

.article-related-list span,
.article-neighbor span {
	color: var(--muted);
	font-size: 0.85rem;
}

.article-neighbor-nav {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1rem;
	max-width: 896px;
	margin: 2rem auto 0;
}

.article-neighbor {
	display: grid;
	gap: 0.3rem;
	padding: 1rem;
	border: 1px solid var(--border);
	border-radius: 0.75rem;
}

.article-neighbor-next {
	text-align: right;
}

@media (max-width: 640px) {
	.article-related-list li,
	.article-neighbor-nav {
		grid-template-columns: 1fr;
	}

	.article-related-list li {
		display: grid;
	}

	.article-neighbor-next {
		text-align: left;
	}
}

.blog-post-category {
  background: #475569;
  color: #ffffff;
  border-radius: 999px;
  padding: 0.12rem 0.62rem;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.blog-post-category.category-go {
  background: #00add8;
  color: #172033;
}

.blog-post-category.category-python {
  background: #3776ab;
}

.blog-post-category.category-firebase {
  background: #ff8f00;
  color: #172033;
}

.blog-post-category.category-css {
  background: #264de4;
}

.blog-post-category.category-js {
  background: #d4a017;
  color: #1b1605;
}

.blog-post-category.category-html {
  background: #c2410c;
}

.blog-post-category.category-dados {
  background: #0f766e;
}

.blog-post-category.category-geral {
  background: #64748b;
}

.blog-post-date {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.blog-post-link h3 {
  margin: 0 0 0.4rem;
  font-size: 1.12rem;
}

.blog-post-summary {
  margin: 0;
  font-size: 0.95rem;
}

.blog-empty {
  margin-top: 1rem;
}

.blog-pagination {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.button,
button,
input,
select,
textarea {
  font-family: inherit;
}

.button {
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--text);
  border-radius: 10px;
  padding: 0.45rem 0.85rem;
  min-height: 2.75rem;
  cursor: pointer;
}

.button:hover,
.button:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.blog-page-info {
  color: var(--muted);
  font-size: 0.88rem;
}

.blog-article {
  margin-top: 1rem;
}

.comments-panel {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.comments-panel-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.comments-panel-header h3 {
  margin-bottom: 0.25rem;
}

.comments-policy,
.comments-help,
.comments-noscript,
.comments-empty,
.comments-status,
.comment-date {
  color: var(--muted);
}

.comments-policy,
.comments-help,
.comments-noscript,
.comments-empty,
.comments-status {
  font-size: 0.94rem;
}

.comments-status.is-error {
  color: #c24141;
}

.comments-list {
  display: grid;
  gap: 0.85rem;
  margin-bottom: 1.25rem;
}

.comment-item {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}

.comment-item-header {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 0.55rem;
}

.comment-author {
  color: var(--text);
}

.comment-date {
  font-size: 0.83rem;
}

.comment-message {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.comments-form {
  display: grid;
  gap: 1rem;
}

.comments-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.comments-field {
  display: grid;
  gap: 0.45rem;
}

.comments-field span {
  font-size: 0.92rem;
  color: var(--text);
}

.comments-field input,
.comments-field textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--text);
  padding: 0.7rem 0.8rem;
}

.comments-field textarea {
  resize: vertical;
  min-height: 8rem;
}

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

.comments-actions {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.blog-article section {
  display: block;
}

.blog-article-cover {
  margin: 0 0 1rem;
  border-radius: 12px;
  overflow: hidden;
}

.blog-article-cover img,
.blog-article img {
  max-width: 100%;
  height: auto;
  display: block;
}

.blog-article-cover picture {
  display: block;
}

.blog-article figure,
.content-prose figure {
  margin: 0 auto 1rem;
  text-align: center;
}

.blog-article figure img,
.content-prose figure img {
  margin: 0 auto;
}

.blog-article figcaption,
.content-prose figcaption {
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.blog-article p,
.blog-article li,
.blog-article blockquote {
  color: var(--muted);
}

.blog-article a,
.content-prose a {
  color: var(--accent);
}

.blog-article a:hover,
.blog-article a:focus-visible,
.content-prose a:hover,
.content-prose a:focus-visible {
  color: var(--accent-strong);
}

.blog-article ul,
.blog-article ol,
.content-prose ul,
.content-prose ol {
  margin: 0 0 1rem 1.2rem;
}

.blog-article code,
.content-prose code {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.1rem 0.32rem;
  color: var(--text);
}

.blog-article pre,
.content-prose pre {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.8rem;
  overflow-x: auto;
  margin: 0 0 1rem;
}

.blog-article pre code,
.content-prose pre code {
  display: block;
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0;
  color: var(--text);
  line-height: 1.55;
}

.content-prose h3,
.content-prose h4 {
  margin-top: 1.2rem;
}

.ad-slot {
  margin: 1rem 0 1.2rem;
  border-radius: 12px;
  overflow: hidden;
}

@media (max-width: 860px) {
  .blog-post-list {
    grid-template-columns: 1fr;
  }

  .recent-posts-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.2rem;
  }

  #recent-posts-list {
    min-block-size: 19rem;
  }

  .recent-post-item {
    padding-top: 1rem;
    border-top: 1px solid var(--border);
  }

  .recent-post-item:first-child {
    padding-top: 0;
    border-top: 0;
  }
}

@media (max-width: 720px) {
  body {
    padding-bottom: calc(4.25rem + env(safe-area-inset-bottom));
  }

  .site-main {
    padding: 1.25rem 0 2rem;
  }

  .main-centered {
    align-items: center;
  }

  .site-header .header-row {
    align-items: center;
    flex-direction: column;
    gap: 0.55rem;
    justify-content: center;
    min-height: auto;
    padding: 3.25rem 0 0.9rem;
  }

  .header-right {
    display: block;
    width: 100%;
    margin-left: 0;
  }

  .header-right .site-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: auto;
    bottom: 0;
    transform: none;
    width: 100%;
    margin: 0;
    padding: 0.35rem max(1rem, env(safe-area-inset-left)) calc(0.35rem + env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-right));
    background: var(--surface);
    border-top: 1px solid var(--surface-soft);
    box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.18);
    z-index: 1000;
  }

  .header-right .site-nav ul {
    justify-content: center;
    gap: 0.4rem;
  }

  .site-nav a {
    display: inline-flex;
    align-items: center;
    min-height: 2.5rem;
    padding: 0.45rem 0.78rem;
  }

  .theme-toggle {
    position: fixed;
    top: 0.75rem;
    right: 0.75rem;
    z-index: 1000;
    inline-size: 2.7rem;
    block-size: 2.7rem;
    padding: 0;
  }

  .site-nav ul {
    gap: 0.35rem;
  }

  .site-nav a,
  .footer-links a {
    font-size: 0.86rem;
  }

  .footer-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .panel {
    padding: clamp(1rem, 3.8vw + 0.4rem, 1.5rem);
    border-radius: 14px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .quick-links {
    justify-content: center;
  }

  .quick-links a {
    width: 2.85rem;
    height: 2.85rem;
  }

  .blog-search,
  .blog-category {
    width: 100%;
    min-width: 0;
    flex: initial;
  }

  .comments-form-grid {
    grid-template-columns: 1fr;
  }

  .comments-actions {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 720px) and (min-resolution: 2dppx), (max-width: 720px) and (-webkit-min-device-pixel-ratio: 2) {
  .site-nav a,
  .footer-links a {
    font-size: 0.95rem;
  }

  .theme-toggle {
    inline-size: 2.9rem;
    block-size: 2.9rem;
    padding: 0;
  }

  .button,
  .blog-search,
  .blog-category {
    min-height: 2.8rem;
    font-size: 1rem;
  }

  .blog-post-link h3 {
    font-size: 1.2rem;
  }

  .blog-post-summary,
  .blog-status,
  .blog-page-info {
    font-size: 0.98rem;
  }
}