/* Raiz & Folha — arvorebr.info
   Design: photo-reportage | forest-sage palette */

:root {
  --color-forest: #2a4a3c;
  --color-forest-deep: #1a3028;
  --color-sage: #7a9a88;
  --color-sage-light: #b8cdbf;
  --color-sage-muted: #d4e2d8;
  --color-cream: #f6f4ef;
  --color-cream-dark: #ebe8e0;
  --color-ink: #1e2a24;
  --color-ink-soft: #4a5c52;
  --color-ink-muted: #6b7d72;
  --color-white: #ffffff;
  --color-border: rgba(42, 74, 60, 0.14);
  --color-overlay: rgba(26, 48, 40, 0.72);

  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 900px;
  --radius-pill: 28px;
  --radius-sm: 12px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --rail-width: 220px;
  --header-height: 72px;
  --transition: 0.25s ease;
}

[data-theme="dark"] {
  --color-cream: #141c18;
  --color-cream-dark: #1e2a24;
  --color-ink: #e8ede9;
  --color-ink-soft: #b8c8bc;
  --color-ink-muted: #8a9e92;
  --color-border: rgba(184, 205, 191, 0.12);
  --color-sage-muted: #2a3d34;
  --color-white: #1a2420;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-cream);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

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

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

[data-theme="dark"] a {
  color: var(--color-sage-light);
}

[data-theme="dark"] a:hover {
  color: var(--color-sage);
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* Header — centered-logo */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-cream);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.header-logo {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
}

.header-logo a {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-ink);
  text-decoration: none;
}

.header-logo span {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
}

.menu-toggle,
.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-ink);
  transition: background var(--transition), border-color var(--transition);
}

.menu-toggle:hover,
.theme-toggle:hover {
  background: var(--color-sage-muted);
}

.menu-toggle svg,
.theme-toggle svg {
  width: 18px;
  height: 18px;
}

.theme-icon-dark { display: none; }
[data-theme="dark"] .theme-icon-light { display: none; }
[data-theme="dark"] .theme-icon-dark { display: block; }

/* Mobile drawer — vertical nav */
.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  width: 280px;
  height: 100vh;
  background: var(--color-cream);
  border-right: 1px solid var(--color-border);
  z-index: 200;
  transform: translateX(-100%);
  transition: transform var(--transition);
  padding: calc(var(--header-height) + var(--space-lg)) var(--space-lg) var(--space-lg);
  overflow-y: auto;
}

.nav-drawer.is-open {
  transform: translateX(0);
}

.nav-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 150;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.nav-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.nav-drawer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.nav-drawer a {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--color-ink);
  text-decoration: none;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.nav-drawer a:hover {
  color: var(--color-sage);
}

/* Main */
main {
  flex: 1;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-ink);
}

h1 { font-size: 2.4rem; margin-bottom: var(--space-md); }
h2 { font-size: 1.75rem; margin-bottom: var(--space-sm); }
h3 { font-size: 1.35rem; margin-bottom: var(--space-sm); }

.lead {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-lg);
}

.prose p {
  margin-bottom: var(--space-md);
}

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

/* Hero carousel — single, no autoplay */
.hero-carousel {
  position: relative;
  margin-bottom: var(--space-xl);
}

.hero-slide {
  display: none;
}

.hero-slide.is-active {
  display: block;
}

.hero-image {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  max-height: 520px;
  overflow: hidden;
}

.hero-image img,
.hero-image svg {
  width: 100%;
  height: 520px;
  object-fit: cover;
}

.hero-caption {
  max-width: var(--container);
  margin: var(--space-md) auto 0;
  padding: 0 var(--space-md);
}

.hero-caption h2 {
  font-size: 2rem;
  margin-bottom: var(--space-xs);
}

.hero-caption h2 a {
  color: var(--color-ink);
  text-decoration: none;
}

.hero-caption h2 a:hover {
  color: var(--color-sage);
}

.hero-caption .meta {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-sm);
}

.hero-caption p {
  color: var(--color-ink-soft);
  max-width: 60ch;
}

.carousel-controls {
  display: flex;
  gap: var(--space-sm);
  max-width: var(--container);
  margin: var(--space-md) auto 0;
  padding: 0 var(--space-md);
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 1px solid var(--color-sage);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: background var(--transition);
}

.carousel-dot.is-active,
.carousel-dot:hover {
  background: var(--color-sage);
}

.carousel-arrow {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  cursor: pointer;
  color: var(--color-ink);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.carousel-arrow:hover {
  background: var(--color-sage-muted);
}

/* Cards — stacked-text-below, pill radius */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .card-grid--three {
    grid-template-columns: repeat(3, 1fr);
  }
}

.story-card {
  border-radius: var(--radius-pill);
  overflow: hidden;
  background: var(--color-white);
  border: 1px solid var(--color-border);
}

.story-card__image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

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

.story-card__body {
  padding: var(--space-md);
}

.story-card__body h3 {
  font-size: 1.15rem;
}

.story-card__body h3 a {
  color: var(--color-ink);
  text-decoration: none;
}

.story-card__body h3 a:hover {
  color: var(--color-sage);
}

.story-card__meta {
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-xs);
}

.story-card__excerpt {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  line-height: 1.55;
}

/* Numbered article list */
.numbered-list {
  list-style: none;
  counter-reset: article-counter;
  margin-bottom: var(--space-xl);
}

.numbered-list li {
  counter-increment: article-counter;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
}

.numbered-list li::before {
  content: counter(article-counter, decimal-leading-zero);
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 600;
  color: var(--color-sage);
  line-height: 1;
}

.numbered-list h2 {
  font-size: 1.4rem;
  margin-bottom: var(--space-xs);
}

.numbered-list h2 a {
  color: var(--color-ink);
  text-decoration: none;
}

.numbered-list h2 a:hover {
  color: var(--color-sage);
}

.numbered-list .meta {
  font-size: 0.8rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-xs);
}

.numbered-list .excerpt {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

/* Article — split-content-rail */
.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

@media (min-width: 900px) {
  .article-layout {
    grid-template-columns: var(--rail-width) 1fr;
    gap: var(--space-xl);
  }
}

.article-rail {
  order: 2;
}

@media (min-width: 900px) {
  .article-rail {
    order: 1;
    position: sticky;
    top: calc(var(--header-height) + var(--space-md));
    align-self: start;
  }
}

.article-rail nav ul {
  list-style: none;
}

.article-rail nav a {
  display: block;
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-left: 2px solid transparent;
  padding-left: var(--space-sm);
  transition: border-color var(--transition), color var(--transition);
}

.article-rail nav a:hover,
.article-rail nav a.is-active {
  color: var(--color-forest);
  border-left-color: var(--color-sage);
}

[data-theme="dark"] .article-rail nav a:hover,
[data-theme="dark"] .article-rail nav a.is-active {
  color: var(--color-sage-light);
}

.rail-author {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.rail-author__name {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  color: var(--color-ink);
}

.rail-author__label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-xs);
}

.article-content {
  order: 1;
}

@media (min-width: 900px) {
  .article-content {
    order: 2;
  }
}

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

.article-header .meta {
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-sm);
}

.article-header h1 {
  font-size: 2.2rem;
}

/* Full-bleed images */
.figure-full {
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.figure-full img,
.figure-full svg {
  width: 100%;
  max-height: 560px;
  object-fit: cover;
}

.figure-caption {
  max-width: var(--container);
  margin: var(--space-sm) auto 0;
  padding: 0 var(--space-md);
  font-size: 0.85rem;
  color: var(--color-ink-muted);
  font-style: italic;
}

/* Page sections */
.page-header {
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
}

.page-header h1 {
  font-size: 2.2rem;
}

.section {
  padding: var(--space-lg) 0;
}

.section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-ink-muted);
  margin-bottom: var(--space-md);
}

/* Featured story — homepage */
.featured-story {
  margin-bottom: var(--space-xl);
}

.featured-story__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-sage);
  margin-bottom: var(--space-sm);
}

/* Contact */
.contact-block {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.contact-block a {
  font-family: var(--font-serif);
  font-size: 1.25rem;
}

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

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-md);
  text-align: center;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
  color: var(--color-ink);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.footer-links a {
  color: var(--color-ink-soft);
  text-decoration: none;
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--color-sage);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-ink-muted);
}

/* Cookie bottom-bar */
.cookie-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-forest-deep);
  color: var(--color-cream);
  padding: var(--space-md) var(--space-lg);
  z-index: 300;
  transform: translateY(100%);
  transition: transform var(--transition);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.cookie-bar.is-visible {
  transform: translateY(0);
}

.cookie-bar p {
  font-size: 0.85rem;
  flex: 1;
  min-width: 200px;
  line-height: 1.5;
}

.cookie-bar a {
  color: var(--color-sage-light);
}

.cookie-actions {
  display: flex;
  gap: var(--space-sm);
}

.cookie-accept {
  background: var(--color-sage);
  color: var(--color-forest-deep);
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-md);
  font-size: 0.85rem;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background var(--transition);
}

.cookie-accept:hover {
  background: var(--color-sage-light);
}

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

.text-center { text-align: center; }
.mb-lg { margin-bottom: var(--space-lg); }
.mt-lg { margin-top: var(--space-lg); }