/* Fornalha Viva — biomassabr.digital
   Archetype: community-journal | Palette: warm-earth */

:root {
  --fv-soil: #2f241c;
  --fv-bark: #4a3728;
  --fv-bark-soft: #6b5344;
  --fv-terracotta: #b85c38;
  --fv-terracotta-deep: #8f4528;
  --fv-ember: #d4784a;
  --fv-hay: #e6d9c4;
  --fv-cream: #f3ebe0;
  --fv-wheat: #faf5ec;
  --fv-stone: #9a8b7a;
  --fv-stone-light: #b8a99a;
  --fv-border: #d9cbb8;
  --fv-border-strong: #c4b29c;
  --fv-pull: #ebe2d4;
  --fv-white: #fffdf9;
  --fv-focus: #b85c38;

  --fv-font-display: "Times New Roman", "Liberation Serif", Times, serif;
  --fv-font-body: "Segoe UI", "Helvetica Neue", system-ui, -apple-system, sans-serif;
  --fv-font-label: "Segoe UI", system-ui, sans-serif;

  --fv-space-1: 8px;
  --fv-space-2: 16px;
  --fv-space-3: 24px;
  --fv-space-4: 32px;
  --fv-space-5: 48px;

  --fv-radius: 6px;
  --fv-radius-sm: 4px;
  --fv-radius-lg: 8px;

  --fv-container: 960px;
  --fv-header-h: 72px;
  --fv-cookie-h: 48px;

  --fv-ease: 0.22s ease;
}

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

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

body {
  margin: 0;
  font-family: var(--fv-font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--fv-soil);
  background: var(--fv-cream);
  -webkit-font-smoothing: antialiased;
}

body.has-cookie {
  padding-top: var(--fv-cookie-h);
}

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

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

a:hover,
a:focus-visible {
  color: var(--fv-terracotta-deep);
}

h1, h2, h3, h4 {
  font-family: var(--fv-font-display);
  font-weight: 600;
  line-height: 1.25;
  color: var(--fv-bark);
}

h1 { font-size: clamp(1.75rem, 4vw, 2.35rem); }
h2 { font-size: clamp(1.35rem, 3vw, 1.75rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 var(--fv-space-2); }

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--fv-space-2);
  padding: var(--fv-space-1) var(--fv-space-2);
  background: var(--fv-bark);
  color: var(--fv-wheat);
  z-index: 9999;
  border-radius: var(--fv-radius-sm);
}

.skip-link:focus {
  top: var(--fv-space-2);
}

.container {
  width: min(100% - var(--fv-space-4), var(--fv-container));
  margin-inline: auto;
}

/* Cookie top-strip */
.cookie-strip {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--fv-bark);
  color: var(--fv-hay);
  font-size: 0.875rem;
  transform: translateY(-100%);
  transition: transform var(--fv-ease);
}

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

.cookie-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--fv-space-2);
  max-width: var(--fv-container);
  margin-inline: auto;
  padding: var(--fv-space-1) var(--fv-space-4);
  min-height: var(--fv-cookie-h);
}

.cookie-strip a {
  color: var(--fv-ember);
}

.cookie-strip .btn-outlined {
  border-color: var(--fv-hay);
  color: var(--fv-hay);
  padding: 6px var(--fv-space-2);
  font-size: 0.8125rem;
}

.cookie-strip .btn-outlined:hover {
  background: var(--fv-hay);
  color: var(--fv-bark);
}

/* Header: logo-left, nav-right */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: var(--fv-wheat);
  border-bottom: 1px solid var(--fv-border);
}

body.has-cookie .site-header {
  top: var(--fv-cookie-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--fv-space-3);
  min-height: var(--fv-header-h);
}

.site-logo {
  font-family: var(--fv-font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--fv-bark);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

.site-tagline {
  display: none;
  margin: 0;
  font-family: var(--fv-font-label);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fv-stone);
}

@media (min-width: 640px) {
  .site-tagline {
    display: block;
    margin-right: auto;
    margin-left: var(--fv-space-2);
  }
}

.nav-toggle {
  display: flex;
  align-items: center;
  gap: var(--fv-space-1);
  padding: var(--fv-space-1) var(--fv-space-2);
  font-family: var(--fv-font-label);
  font-size: 0.875rem;
  background: transparent;
  border: 1px solid var(--fv-border-strong);
  border-radius: var(--fv-radius-sm);
  color: var(--fv-bark);
  cursor: pointer;
}

.nav-toggle:hover {
  border-color: var(--fv-terracotta);
}

.main-nav {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--fv-space-3);
}

.main-nav a {
  font-family: var(--fv-font-label);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--fv-bark-soft);
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--fv-terracotta);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* Vertical mobile drawer */
@media (max-width: 719px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(280px, 85vw);
    height: 100vh;
    flex-direction: column;
    padding: var(--fv-space-5) var(--fv-space-3);
    background: var(--fv-wheat);
    border-left: 1px solid var(--fv-border);
    transform: translateX(100%);
    transition: transform var(--fv-ease);
    z-index: 950;
    gap: var(--fv-space-2);
  }

  body.has-cookie .main-nav {
    padding-top: calc(var(--fv-cookie-h) + var(--fv-space-3));
  }

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

  .main-nav a {
    display: block;
    padding: var(--fv-space-2) 0;
    border-bottom: 1px solid var(--fv-border);
    font-size: 1.0625rem;
  }
}

@media (min-width: 720px) {
  .nav-toggle {
    display: none;
  }
}

/* Buttons: outlined */
.btn-outlined {
  display: inline-block;
  padding: 10px var(--fv-space-3);
  font-family: var(--fv-font-label);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--fv-terracotta);
  background: transparent;
  border: 1.5px solid var(--fv-terracotta);
  border-radius: var(--fv-radius);
  text-decoration: none;
  cursor: pointer;
  transition: background var(--fv-ease), color var(--fv-ease);
}

.btn-outlined:hover {
  background: var(--fv-terracotta);
  color: var(--fv-wheat);
}

/* Tags: underline-text */
.tag {
  font-family: var(--fv-font-label);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--fv-terracotta);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 2px;
}

/* Hero: split-image-text */
.hero-split {
  display: grid;
  gap: var(--fv-space-4);
  padding-block: var(--fv-space-5);
  align-items: center;
}

@media (min-width: 720px) {
  .hero-split {
    grid-template-columns: 1fr 1fr;
    gap: var(--fv-space-4);
  }
}

.hero-kicker {
  font-family: var(--fv-font-label);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fv-stone);
  margin: 0 0 var(--fv-space-1);
}

.hero-title {
  margin: 0 0 var(--fv-space-2);
}

.hero-deck {
  font-size: 1.0625rem;
  color: var(--fv-bark-soft);
  margin-bottom: var(--fv-space-2);
}

.hero-meta {
  font-size: 0.875rem;
  color: var(--fv-stone);
  margin: 0;
}

.hero-split__image img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--fv-radius-lg);
  border: 1px solid var(--fv-border);
}

/* 8-col asymmetric grid */
.grid-8 {
  display: grid;
  gap: var(--fv-space-4);
}

@media (min-width: 720px) {
  .grid-8 {
    grid-template-columns: repeat(8, 1fr);
  }

  .col-main { grid-column: span 5; }
  .col-side { grid-column: span 3; }
  .col-full { grid-column: 1 / -1; }
}

/* Home intro */
.home-intro {
  padding-block: var(--fv-space-4);
  border-top: 1px solid var(--fv-border);
}

.home-intro p {
  font-size: 1.0625rem;
}

.section-title {
  font-size: 1.25rem;
  margin: 0 0 var(--fv-space-3);
  padding-bottom: var(--fv-space-1);
  border-bottom: 2px solid var(--fv-terracotta);
  display: inline-block;
}

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

.card-bordered {
  display: grid;
  gap: var(--fv-space-3);
  padding: var(--fv-space-3);
  margin-bottom: var(--fv-space-2);
  background: var(--fv-wheat);
  border: 1px solid var(--fv-border);
  border-radius: var(--fv-radius);
  transition: border-color var(--fv-ease);
}

.card-bordered:hover {
  border-color: var(--fv-border-strong);
}

@media (min-width: 560px) {
  .card-bordered {
    grid-template-columns: 160px 1fr;
    align-items: start;
  }
}

.card-bordered__thumb img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--fv-radius-sm);
}

.card-bordered__title {
  margin: var(--fv-space-1) 0;
  font-size: 1.125rem;
}

.card-bordered__title a {
  color: var(--fv-bark);
  text-decoration: none;
}

.card-bordered__title a:hover {
  color: var(--fv-terracotta);
  text-decoration: underline;
}

.card-bordered__excerpt {
  font-size: 0.9375rem;
  color: var(--fv-bark-soft);
  margin-bottom: var(--fv-space-1);
}

.card-bordered__meta {
  font-size: 0.8125rem;
  color: var(--fv-stone);
  margin: 0;
}

/* Author: inline-byline */
.author-byline {
  font-size: 0.875rem;
  color: var(--fv-stone);
}

.author-name {
  font-weight: 600;
  color: var(--fv-bark-soft);
}

/* Sidebar left-rail */
.left-rail {
  padding: var(--fv-space-3);
  background: var(--fv-pull);
  border: 1px solid var(--fv-border);
  border-radius: var(--fv-radius);
}

.left-rail h3 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 var(--fv-space-2);
  color: var(--fv-stone);
}

.left-rail ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.left-rail li {
  margin-bottom: var(--fv-space-2);
  padding-bottom: var(--fv-space-2);
  border-bottom: 1px solid var(--fv-border);
}

.left-rail li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.left-rail a {
  font-size: 0.9375rem;
  color: var(--fv-bark);
  text-decoration: none;
}

.left-rail a:hover {
  text-decoration: underline;
}

/* Featured + feed layout */
.feed-section {
  padding-block: var(--fv-space-4);
}

.feed-layout {
  display: grid;
  gap: var(--fv-space-4);
}

@media (min-width: 720px) {
  .feed-layout {
    grid-template-columns: 5fr 3fr;
  }
}

.editorial-note {
  padding: var(--fv-space-3);
  background: var(--fv-wheat);
  border-left: 3px solid var(--fv-terracotta);
  border-radius: 0 var(--fv-radius-sm) var(--fv-radius-sm) 0;
}

.editorial-note h3 {
  margin-top: 0;
  font-size: 1rem;
}

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

/* Article layout: sidebar left */
.article-layout {
  display: grid;
  gap: var(--fv-space-4);
  padding-block: var(--fv-space-4);
}

@media (min-width: 720px) {
  .article-layout {
    grid-template-columns: 200px 1fr;
    align-items: start;
  }
}

.article-toc {
  position: sticky;
  top: calc(var(--fv-header-h) + var(--fv-space-2));
}

body.has-cookie .article-toc {
  top: calc(var(--fv-header-h) + var(--fv-cookie-h) + var(--fv-space-2));
}

.article-toc__title {
  font-family: var(--fv-font-label);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fv-stone);
  margin: 0 0 var(--fv-space-2);
}

.article-toc ol {
  margin: 0;
  padding-left: var(--fv-space-2);
  font-size: 0.875rem;
}

.article-toc a {
  color: var(--fv-bark-soft);
  text-decoration: none;
}

.article-toc a:hover,
.article-toc a.is-active {
  color: var(--fv-terracotta);
  text-decoration: underline;
}

.article-header {
  margin-bottom: var(--fv-space-3);
}

.article-byline {
  font-size: 0.9375rem;
  color: var(--fv-stone);
  margin: var(--fv-space-2) 0 0;
}

.article-figure {
  margin: var(--fv-space-3) 0;
}

.article-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--fv-radius-lg);
  border: 1px solid var(--fv-border);
}

.article-figure figcaption {
  font-size: 0.8125rem;
  color: var(--fv-stone);
  margin-top: var(--fv-space-1);
}

.article-body h2 {
  margin-top: var(--fv-space-4);
  margin-bottom: var(--fv-space-2);
}

.pull-quote {
  margin: var(--fv-space-4) 0;
  padding: var(--fv-space-3);
  background: var(--fv-pull);
  border-left: 4px solid var(--fv-terracotta);
  font-family: var(--fv-font-display);
  font-size: 1.125rem;
  font-style: italic;
  color: var(--fv-bark);
}

.pull-quote cite {
  display: block;
  margin-top: var(--fv-space-2);
  font-size: 0.8125rem;
  font-style: normal;
  color: var(--fv-stone);
}

.article-updated {
  font-size: 0.8125rem;
  color: var(--fv-stone);
  margin-top: var(--fv-space-4);
  padding-top: var(--fv-space-2);
  border-top: 1px solid var(--fv-border);
}

.author-box {
  display: flex;
  gap: var(--fv-space-2);
  margin-top: var(--fv-space-4);
  padding: var(--fv-space-3);
  border: 1px solid var(--fv-border);
  border-radius: var(--fv-radius);
  background: var(--fv-wheat);
}

.author-box img {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  flex-shrink: 0;
}

.author-box__name {
  font-weight: 600;
  margin: 0 0 4px;
}

.author-box__bio {
  font-size: 0.875rem;
  color: var(--fv-bark-soft);
  margin: 0;
}

/* Page templates */
.page-header {
  padding-block: var(--fv-space-4);
  border-bottom: 1px solid var(--fv-border);
}

.page-content {
  padding-block: var(--fv-space-4);
  max-width: 68ch;
}

.page-content--wide {
  max-width: none;
}

/* Contact form */
.contact-form {
  max-width: 480px;
}

.form-group {
  margin-bottom: var(--fv-space-3);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--fv-space-1);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px var(--fv-space-2);
  font-family: var(--fv-font-body);
  font-size: 1rem;
  border: 1px solid var(--fv-border-strong);
  border-radius: var(--fv-radius-sm);
  background: var(--fv-wheat);
  color: var(--fv-soil);
}

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

.form-notice {
  padding: var(--fv-space-2);
  background: var(--fv-pull);
  border-radius: var(--fv-radius-sm);
  font-size: 0.9375rem;
}

/* Footer: three-column */
.site-footer {
  margin-top: var(--fv-space-5);
  padding-block: var(--fv-space-5);
  background: var(--fv-bark);
  color: var(--fv-hay);
}

.site-footer a {
  color: var(--fv-ember);
}

.site-footer a:hover {
  color: var(--fv-wheat);
}

.footer-masthead {
  margin-bottom: var(--fv-space-4);
  padding-bottom: var(--fv-space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-logo {
  font-family: var(--fv-font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fv-wheat);
  text-decoration: none;
}

.footer-tagline {
  margin: var(--fv-space-1) 0 0;
  font-size: 0.875rem;
  color: var(--fv-stone-light);
}

.footer-grid {
  display: grid;
  gap: var(--fv-space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 560px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-col h3 {
  font-family: var(--fv-font-label);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fv-stone-light);
  margin: 0 0 var(--fv-space-2);
}

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

.footer-col li {
  margin-bottom: var(--fv-space-1);
}

.footer-col a {
  text-decoration: none;
  font-size: 0.9375rem;
}

.footer-col a:hover {
  text-decoration: underline;
}

.footer-bottom {
  margin: var(--fv-space-4) 0 0;
  padding-top: var(--fv-space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 0.8125rem;
  color: var(--fv-stone-light);
}

/* Articles index */
.articles-grid {
  padding-block: var(--fv-space-4);
}