/* ─── Base ─── */

body {
  background-color: var(--color-branco-papel);
  color: var(--color-preto);
  font-family: var(--font-epilogue);
}

/* ─── Container ─── */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ─── Header ─── */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--color-branco-papel);
  display: flex;
  align-items: center;
  padding-inline: var(--container-pad);
  border-bottom: 1px solid var(--color-preto);
  transition: background-color 0.4s ease;
}

/* HOME: começa Amarelito e vira Branco Papel ao rolar */
.site-header--home {
  background-color: var(--color-amarelito);
}

.site-header--home.is-scrolled {
  background-color: var(--color-branco-papel);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.site-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.site-header__logo {
  display: block;
  width: 160px;
}

.site-header__logo img {
  width: 100%;
  height: auto;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.site-header__nav a {
  font-family: var(--font-epilogue);
  font-weight: var(--weight-medium);
  font-size: 1.0625rem; /* ~17px, igual ao "edição 01" */
  text-transform: lowercase;
  letter-spacing: var(--ls-title-sm);
  color: var(--color-preto);
  line-height: var(--line-height-min);
  transition: opacity 0.15s ease;
}

.site-header__nav a:hover {
  opacity: 0.5;
}

/* ─── Hamburger ─── */

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-vermelho);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ─── Offset para o header fixo ─── */

.page-content {
  padding-top: var(--header-height);
}

/* ─── Grids ─── */

.grid-textos {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
}

.grid-autores {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

/* ─── Seção genérica ─── */

.section {
  padding-block: var(--space-xl);
}

.section--flush {
  padding-block: 0;
}

/* ─── Largura de leitura ─── */

.reading-width {
  max-width: 72ch;
  margin-inline: auto;
}

/* ─── Traço vermelho decorativo antes de títulos ─── */

.section-label {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: '';
  display: block;
  width: 2rem;
  height: 2px;
  background-color: var(--color-vermelho);
  flex-shrink: 0;
}

/* ─── Responsividade ─── */

@media (max-width: 768px) {
  :root {
    --container-pad: 1rem;
  }

  .site-header__nav {
    display: none;
  }

  .site-header__logo {
    width: 110px;
  }

  .grid-textos {
    grid-template-columns: repeat(2, 1fr);
  }

  .grid-autores {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .site-header__logo {
    width: 90px;
  }
}