/* Sol em Foco — solbr.info | tropical-bright / data-light-newsroom */

:root {
  --space-xs: 12px;
  --space-sm: 24px;
  --space-md: 36px;
  --space-lg: 48px;
  --space-xl: 72px;
  --radius: 14px;
  --radius-sm: 12px;
  --radius-lg: 16px;
  --container: 720px;
  --font-sans: "Source Sans 3", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --transition: 0.25s ease;

  --c-bg: #faf9f6;
  --c-surface: #ffffff;
  --c-text: #1a2332;
  --c-muted: #5a6478;
  --c-border: #e2e6ed;
  --c-accent: #0d9488;
  --c-accent-2: #f97316;
  --c-accent-3: #eab308;
  --c-header-bg: rgba(250, 249, 246, 0.92);
  --c-overlay: rgba(26, 35, 50, 0.55);
  --c-tag: #0d9488;
  --c-link: #0f766e;
  --c-link-hover: #f97316;
  --c-btn-ghost: rgba(13, 148, 136, 0.08);
  --c-btn-ghost-hover: rgba(13, 148, 136, 0.16);
  --c-cookie-bg: #ffffff;
  --c-shadow: 0 4px 24px rgba(26, 35, 50, 0.06);
  --c-duotone-a: #0d9488;
  --c-duotone-b: #f97316;
}

[data-theme="dark"] {
  --c-bg: #0f1419;
  --c-surface: #1a2332;
  --c-text: #e8ecf1;
  --c-muted: #94a3b8;
  --c-border: #2d3748;
  --c-accent: #2dd4bf;
  --c-accent-2: #fb923c;
  --c-accent-3: #facc15;
  --c-header-bg: rgba(15, 20, 25, 0.94);
  --c-overlay: rgba(0, 0, 0, 0.65);
  --c-tag: #2dd4bf;
  --c-link: #5eead4;
  --c-link-hover: #fb923c;
  --c-btn-ghost: rgba(45, 212, 191, 0.1);
  --c-btn-ghost-hover: rgba(45, 212, 191, 0.2);
  --c-cookie-bg: #1a2332;
  --c-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --c-duotone-a: #2dd4bf;
  --c-duotone-b: #fb923c;
}

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

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--c-text);
  background: var(--c-bg);
  transition: background var(--transition), color var(--transition);
}

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

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

a:hover { color: var(--c-link-hover); }

.container {
  width: min(100% - var(--space-sm) * 2, var(--container));
  margin-inline: auto;
}

/* —— Header: minimal-header + sticky-shrink-on-scroll —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--c-header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
  transition: padding var(--transition), box-shadow var(--transition);
}

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

.site-header.is-shrunk .header-inner { padding-block: var(--space-xs); }
.site-header.is-shrunk .logo-text { font-size: 1.125rem; }

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--c-text);
}

.logo svg { width: 36px; height: 36px; flex-shrink: 0; }

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  transition: font-size var(--transition);
}

.logo-tag {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--c-accent);
  display: block;
  line-height: 1.2;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-btn-ghost);
  color: var(--c-text);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.theme-toggle:hover { background: var(--c-btn-ghost-hover); }

.theme-toggle svg { width: 20px; height: 20px; }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-btn-ghost);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--c-text);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-decoration: none;
  color: var(--c-muted);
}

.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--c-accent); }

/* —— Buttons: subtle-ghost —— */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-btn-ghost);
  color: var(--c-text);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}

.btn:hover {
  background: var(--c-btn-ghost-hover);
  color: var(--c-text);
}

/* —— Tags: bracket-label —— */
.tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-tag);
}

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

.meta-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-muted);
}

/* —— Hero: hero-grid / bento-grid —— */
.hero-grid {
  padding-block: var(--space-lg) var(--space-md);
}

.hero-grid__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: var(--space-sm);
}

.hero-grid__lead {
  grid-column: 1 / -1;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: flex-end;
}

.hero-grid__lead img,
.hero-grid__lead svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-grid__lead::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--c-overlay) 0%, transparent 60%);
}

.hero-grid__lead-content {
  position: relative;
  z-index: 1;
  padding: var(--space-md);
  max-width: 85%;
}

.hero-grid__lead h1 {
  margin: var(--space-xs) 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
}

.hero-grid__lead h1 a {
  color: inherit;
  text-decoration: none;
}

.hero-grid__lead h1 a:hover { color: var(--c-accent-3); }

.hero-grid__lead .meta-date { color: rgba(255,255,255,0.8); }

.hero-grid__cell {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 180px;
  display: flex;
  align-items: flex-end;
}

.hero-grid__cell img,
.hero-grid__cell svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-grid__cell::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--c-overlay) 0%, transparent 70%);
}

.hero-grid__cell-content {
  position: relative;
  z-index: 1;
  padding: var(--space-sm);
}

.hero-grid__cell h2 {
  margin: 6px 0 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
}

.hero-grid__cell h2 a {
  color: #fff;
  text-decoration: none;
}

.hero-grid__cell h2 a:hover { color: var(--c-accent-3); }

/* —— Section headings —— */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--c-border);
}

.section-head h2 {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

/* —— Article list: horizontal-rows —— */
.article-rows { list-style: none; margin: 0; padding: 0; }

.article-row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: var(--space-sm);
  padding-block: var(--space-sm);
  border-bottom: 1px solid var(--c-border);
  align-items: start;
}

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

.article-row__thumb {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-surface);
}

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

.article-row__body h3 {
  margin: 0 0 6px;
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
}

.article-row__body h3 a {
  color: var(--c-text);
  text-decoration: none;
}

.article-row__body h3 a:hover { color: var(--c-accent); }

.article-row__excerpt {
  margin: 0 0 var(--space-xs);
  font-size: 0.9375rem;
  color: var(--c-muted);
  line-height: 1.55;
}

.article-row__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
}

/* —— Cards: image-overlay (bento) —— */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-block: var(--space-md);
}

.bento-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: flex-end;
}

.bento-card img,
.bento-card svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.bento-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--c-overlay) 0%, transparent 65%);
}

.bento-card__content {
  position: relative;
  z-index: 1;
  padding: var(--space-sm);
}

.bento-card__content h3 {
  margin: 6px 0 0;
  font-size: 0.9375rem;
  font-weight: 600;
}

.bento-card__content h3 a {
  color: #fff;
  text-decoration: none;
}

/* —— Page layouts —— */
.page-main { padding-block: var(--space-md) var(--space-xl); }

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

.page-header h1 {
  margin: 0 0 var(--space-xs);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-header .lead {
  margin: 0;
  font-size: 1.125rem;
  color: var(--c-muted);
  line-height: 1.6;
}

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

.article-content h2 {
  margin: var(--space-md) 0 var(--space-xs);
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1.3;
}

.article-content h3 {
  margin: var(--space-sm) 0 var(--space-xs);
  font-size: 1.125rem;
  font-weight: 600;
}

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

.article-content ul, .article-content ol {
  margin: 0 0 var(--space-sm);
  padding-left: var(--space-sm);
}

.article-content li { margin-bottom: 6px; }

.article-content blockquote {
  margin: var(--space-sm) 0;
  padding: var(--space-sm) var(--space-md);
  border-left: 3px solid var(--c-accent);
  background: var(--c-btn-ghost);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-style: italic;
  color: var(--c-muted);
}

.article-content .data-callout {
  margin: var(--space-sm) 0;
  padding: var(--space-sm);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

.article-content .data-callout strong {
  display: block;
  font-size: 1.5rem;
  color: var(--c-accent);
  margin-bottom: 4px;
}

.article-header {
  margin-bottom: var(--space-md);
}

.article-header h1 {
  margin: var(--space-xs) 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  line-height: 1.25;
}

.article-header .dek {
  font-size: 1.125rem;
  color: var(--c-muted);
  line-height: 1.55;
  margin: 0 0 var(--space-sm);
}

.article-header__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  align-items: center;
}

/* —— Sidebar: sticky-toc + author-bio-box —— */
.article-sidebar { position: relative; }

.sticky-toc {
  position: sticky;
  top: calc(var(--space-xl) + 20px);
  padding: var(--space-sm);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.sticky-toc h2 {
  margin: 0 0 var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.sticky-toc ol {
  margin: 0;
  padding: 0 0 0 1rem;
  font-size: 0.8125rem;
  line-height: 1.6;
}

.sticky-toc a {
  color: var(--c-muted);
  text-decoration: none;
}

.sticky-toc a:hover,
.sticky-toc a.is-active { color: var(--c-accent); }

.author-bio-box {
  margin-top: var(--space-sm);
  padding: var(--space-sm);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.author-bio-box__avatar {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: var(--space-xs);
}

.author-bio-box__avatar svg { width: 100%; height: 100%; }

.author-bio-box h3 {
  margin: 0 0 4px;
  font-size: 0.9375rem;
  font-weight: 600;
}

.author-bio-box .role {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--c-accent);
  margin: 0 0 var(--space-xs);
}

.author-bio-box p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--c-muted);
  line-height: 1.5;
}

/* —— Prose pages —— */
.prose h2 {
  margin: var(--space-md) 0 var(--space-xs);
  font-size: 1.25rem;
  font-weight: 700;
}

.prose h3 {
  margin: var(--space-sm) 0 var(--space-xs);
  font-size: 1.0625rem;
  font-weight: 600;
}

.prose p { margin: 0 0 var(--space-sm); }
.prose ul, .prose ol { margin: 0 0 var(--space-sm); padding-left: var(--space-sm); }
.prose li { margin-bottom: 6px; }

/* —— Contact form —— */
.contact-form {
  display: grid;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  color: var(--c-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-sans);
  font-size: 1rem;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  color: var(--c-text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--c-accent);
}

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

.contact-info {
  margin-top: var(--space-md);
  padding: var(--space-sm);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
}

.contact-info p { margin: 0; }

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

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.footer-col h3 {
  margin: 0 0 var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.footer-col p {
  margin: 0 0 var(--space-xs);
  font-size: 0.875rem;
  color: var(--c-muted);
  line-height: 1.55;
}

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

.footer-col li { margin-bottom: 6px; }

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

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

.footer-bottom {
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--c-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-xs);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--c-muted);
}

/* —— Cookie: corner-popup —— */
.cookie-popup {
  position: fixed;
  bottom: var(--space-sm);
  right: var(--space-sm);
  z-index: 200;
  max-width: 360px;
  padding: var(--space-sm);
  background: var(--c-cookie-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  box-shadow: var(--c-shadow);
  transform: translateY(calc(100% + var(--space-sm)));
  opacity: 0;
  transition: transform 0.4s ease, opacity 0.4s ease;
}

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

.cookie-popup p {
  margin: 0 0 var(--space-xs);
  font-size: 0.875rem;
  color: var(--c-muted);
  line-height: 1.5;
}

.cookie-popup__actions {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

/* —— Utility —— */
.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;
}

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

/* —— Responsive —— */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--c-header-bg);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--c-border);
    padding: var(--space-sm);
    display: none;
  }

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

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
  }

  .hero-grid__layout { grid-template-columns: 1fr; }
  .hero-grid__lead { min-height: 260px; }

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

  .sticky-toc { position: static; }

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

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

  .article-row {
    grid-template-columns: 80px 1fr;
  }
}

@media (max-width: 480px) {
  .cookie-popup {
    left: var(--space-xs);
    right: var(--space-xs);
    bottom: var(--space-xs);
    max-width: none;
  }
}