/*
 * Layout público — header, footer, hero e containers de seção.
 * Usado apenas por index.php e dev/componentes.php.
 * Não é compartilhado com estilo/css/style.css (admin.php).
 */

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-family-base);
  color: var(--color-text);
  background: var(--color-bg);
  margin: 0;
}

.site-container {
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}

/* ---------- Header público ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-surface);
  border-bottom: 1px solid transparent;
  transition: box-shadow .2s ease, border-color .2s ease;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--color-border);
}

@media (prefers-reduced-motion: reduce) {
  .site-header {
    transition: none;
  }
}

.site-header__inner {
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  text-decoration: none;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-md);
}

.site-header__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.site-header__brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__nav a:not(.btn) {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
}

.site-header__nav a:not(.btn):hover {
  color: var(--color-primary);
}

/* ---------- Hero ---------- */

.hero {
  padding-block: var(--space-8);
}

.hero__inner {
  max-width: var(--content-max-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-7);
  align-items: center;
}

.hero__title {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-title);
  margin: 0 0 var(--space-4);
}

.hero__subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-long);
  margin: 0 0 var(--space-5);
  max-width: 46ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__art {
  width: 100%;
  height: auto;
}

@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero__subtitle {
    max-width: none;
    margin-inline: auto;
  }
  .hero__actions {
    justify-content: center;
  }
  .hero__art {
    max-width: 360px;
    margin-inline: auto;
  }
}

/* ---------- Seções ---------- */

.section {
  padding-block: var(--space-7);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

.section__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  margin: 0 0 var(--space-2);
}

.section__description {
  color: var(--color-text-secondary);
  margin: 0;
}

/* ---------- Footer público ---------- */

.site-footer {
  text-align: center;
  padding: var(--space-5) var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  border-top: 1px solid var(--color-border);
}

.site-footer p {
  margin: 0;
}