/* 
  biannel.site - Cadernos de Observação
  Unique editorial warm lifestyle design - 2026
  Completely custom, no frameworks, sharp yet warm aesthetic
*/

:root {
  --cream: #FAF3E8;
  --sand: #F8EDE0;
  --brown: #2F2520;
  --terracotta: #B85C38;
  --olive: #556B4F;
  --gold: #D4A373;
  --text-light: #5C524A;
  --border: #EDE4D8;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--cream);
  color: var(--brown);
  line-height: 1.75;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  line-height: 1.2;
  color: var(--brown);
}

h1 { font-size: 3.2rem; }
h2 { font-size: 2.1rem; }
h3 { font-size: 1.55rem; }

a {
  color: var(--terracotta);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: #8C3F26;
}

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header - unique floating warm bar */
header {
  background-color: var(--brown);
  color: #F5EDE4;
  padding: 18px 0;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid #463A32;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: Georgia, serif;
  font-size: 1.65rem;
  font-weight: 700;
  color: #F5EDE4;
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: #D4C9B8;
  font-size: 0.95rem;
  font-weight: 500;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover {
  color: #F5EDE4;
  border-bottom-color: var(--terracotta);
}

.nav-links a.active {
  color: #F5EDE4;
  border-bottom-color: var(--gold);
}

/* Hero - asymmetric editorial */
.hero {
  background: linear-gradient(145deg, #FAF3E8 0%, #F5E8D8 100%);
  padding: 120px 0 100px;
  border-bottom: 1px solid var(--border);
}

.hero-content {
  max-width: 820px;
}

.hero h1 {
  font-size: 3.8rem;
  margin-bottom: 24px;
  line-height: 1.1;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-light);
  max-width: 620px;
  margin-bottom: 40px;
}

.btn {
  display: inline-block;
  background-color: var(--terracotta);
  color: white;
  padding: 14px 36px;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn:hover {
  background-color: #8C3F26;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border: 2px solid var(--terracotta);
  color: var(--terracotta);
  padding: 12px 32px;
}

.btn-outline:hover {
  background: var(--terracotta);
  color: white;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-alt {
  background-color: #F5E8D8;
}

.section-title {
  font-size: 2.35rem;
  margin-bottom: 48px;
  position: relative;
  display: inline-block;
}

.section-title:after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--terracotta);
}

/* Asymmetric home layout */
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: start;
}

.intro-text {
  font-size: 1.1rem;
}

.intro-text p {
  margin-bottom: 22px;
}

.side-notes {
  background: white;
  border: 1px solid var(--border);
  padding: 32px;
  border-radius: 3px;
}

.side-notes h3 {
  font-size: 1.35rem;
  margin-bottom: 24px;
  color: var(--olive);
}

.note-item {
  display: block;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  color: var(--brown);
  font-size: 1.02rem;
}

.note-item:last-child {
  border-bottom: none;
}

.note-item:hover {
  color: var(--terracotta);
}

/* Article cards - unique style */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.article-card {
  background: white;
  border: 1px solid var(--border);
  border-left: 5px solid var(--terracotta);
  padding: 32px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  color: inherit;
  display: block;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px rgba(47, 37, 32, 0.06);
}

.article-card h3 {
  font-size: 1.45rem;
  margin-bottom: 14px;
  line-height: 1.3;
}

.article-card .meta {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 16px;
  display: block;
}

.article-card p {
  color: var(--text-light);
  font-size: 1rem;
  line-height: 1.7;
}

/* Reading page layout */
.reading-container {
  max-width: 780px;
  margin: 0 auto;
}

.article-header {
  text-align: center;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}

.article-header h1 {
  font-size: 2.85rem;
  margin-bottom: 16px;
}

.article-meta {
  color: var(--text-light);
  font-size: 0.95rem;
}

.article-body {
  font-size: 1.08rem;
  line-height: 1.85;
}

.article-body p {
  margin-bottom: 26px;
}

.article-body h2 {
  margin-top: 52px;
  margin-bottom: 20px;
  font-size: 1.85rem;
}

.pullquote {
  font-family: Georgia, serif;
  font-size: 1.45rem;
  line-height: 1.5;
  color: var(--olive);
  border-left: 4px solid var(--gold);
  padding-left: 28px;
  margin: 48px 0;
  font-style: italic;
}

/* About page - unique narrative */
.about-hero {
  background: var(--brown);
  color: #F5EDE4;
  padding: 90px 0;
  text-align: center;
}

.about-hero h1 {
  color: #F5EDE4;
  font-size: 3.1rem;
}

.about-content {
  max-width: 820px;
  margin: 0 auto;
}

.story-block {
  margin-bottom: 64px;
}

.story-block h2 {
  color: var(--terracotta);
  margin-bottom: 18px;
}

/* Contact form - clean */
.contact-form {
  max-width: 620px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  background: white;
  font-size: 1rem;
  border-radius: 3px;
  font-family: inherit;
  transition: border-color 0.2s;
}

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

.form-group textarea {
  min-height: 160px;
  resize: vertical;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-top: 8px;
}

/* Thank you page */
.thank-you {
  text-align: center;
  padding: 120px 20px;
  max-width: 620px;
  margin: 0 auto;
}

.thank-you h1 {
  font-size: 2.8rem;
  margin-bottom: 20px;
}

.thank-you p {
  font-size: 1.2rem;
  color: var(--text-light);
}

/* Footer */
footer {
  background: var(--brown);
  color: #C9B9A8;
  padding: 60px 0 40px;
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
}

.footer-col h4 {
  color: #EDE4D8;
  margin-bottom: 18px;
  font-size: 1rem;
}

.footer-col a {
  color: #C9B9A8;
  display: block;
  margin-bottom: 8px;
}

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

.address {
  line-height: 1.6;
}

.legal-links {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid #463A32;
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.legal-links a {
  color: #A38E7A;
  font-size: 0.85rem;
}

.copyright {
  text-align: center;
  margin-top: 40px;
  font-size: 0.8rem;
  color: #8C7663;
}

/* Responsive */
@media (max-width: 900px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  h1 { font-size: 2.6rem; }
  .hero h1 { font-size: 3rem; }
  
  .nav-links {
    gap: 20px;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 0 18px;
  }
  
  .hero {
    padding: 80px 0 70px;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .nav-links {
    display: none; /* simple for now, or can enhance with JS but keep minimal */
  }
  
  .logo {
    font-size: 1.45rem;
  }
}

/* Small decorative elements */
.decor-line {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--terracotta), transparent);
  margin: 40px 0;
}

.svg-icon {
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}