/* ============================================================
   LAYOUT - Header + Footer + Buttons compartilhados por todas
   as paginas publicas (landing, entrar, cadastro, legal, etc)
   ============================================================ */

/* ========== PADRAO DE PONTINHOS ========== */
html {
  background-color: #F7F8FA;
  background-image: radial-gradient(circle at 2px 2px, rgba(28, 42, 78, 0.22) 1.4px, transparent 1.8px);
  background-size: 26px 26px;
}
body.page-public {
  background: transparent;
}
body.page-public > main {
  background: transparent;
}

/* ========== BUTTONS ========== */

.btn {
  font-family: var(--font-body);
  font-weight: var(--weight-semibold);
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  line-height: 1;
  transition: background var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              transform var(--transition-fast);
}
.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn--sm { font-size: var(--type-1); padding: 0 14px; height: 36px; }
.btn--md { font-size: var(--type-2); padding: 0 18px; height: 44px; }
.btn--lg { font-size: var(--type-3); padding: 0 28px; height: 52px; }
.btn--xl { font-size: var(--type-3); padding: 0 36px; height: 60px; font-weight: var(--weight-bold); }
.btn--block { width: 100%; }

/* Primary - laranja. color fixo em todos estados pra override o global a:hover */
.btn--primary,
.btn--primary:hover,
.btn--primary:focus,
.btn--primary:active,
.btn--primary:visited { color: var(--color-white); }
.btn--primary { background: var(--color-primary); }
.btn--primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-glow-primary);
}
.btn--primary:active:not(:disabled) {
  background: var(--color-primary-active);
  transform: translateY(1px);
}

/* Ghost - neutral */
.btn--ghost,
.btn--ghost:hover,
.btn--ghost:focus,
.btn--ghost:active,
.btn--ghost:visited { color: var(--color-navy); }
.btn--ghost {
  background: transparent;
  border-color: var(--border-default);
}
.btn--ghost:hover:not(:disabled) {
  border-color: var(--color-gray-500);
  background: var(--color-gray-50);
}

/* White - pra CTAs em backgrounds escuros */
.btn--white,
.btn--white:hover,
.btn--white:focus,
.btn--white:active,
.btn--white:visited { color: var(--color-primary); }
.btn--white { background: var(--color-white); }
.btn--white:hover:not(:disabled) { background: var(--color-gray-50); }

/* ========== SITE HEADER ========== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  transition: background var(--transition-base), border-color var(--transition-base);
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(248, 249, 250, 0.92);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
/* Compensa header fixo pra conteudo nao ficar escondido no topo */
body.page-public > main { padding-top: var(--header-height); }
.site-header__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  height: 100%;
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.site-header__brand { display: flex; align-items: center; text-decoration: none; }
.site-header__nav {
  display: flex;
  gap: var(--space-6);
  flex: 1;
  justify-content: center;
}
.site-header__nav a {
  color: var(--color-gray-700);
  font-size: var(--type-1);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.site-header__nav a:hover { color: var(--color-navy); }
.site-header__cta {
  display: flex;
  gap: var(--space-3);
  margin-left: auto;
}
.site-header__menu {
  display: none;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 0;
  cursor: pointer;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}
.site-header__menu span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
}

@media (max-width: 900px) {
  .site-header__nav {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--space-6);
    gap: var(--space-4);
    box-shadow: var(--shadow-lg);
  }
  .site-header__nav.is-open { display: flex; }
  .site-header__cta { display: none; }
  .site-header__menu { display: flex; }
}

/* ========== SITE FOOTER ========== */

.site-footer {
  background: var(--color-navy);
  color: var(--color-gray-300);
  padding: var(--space-24) 0 var(--space-12);
  margin-top: auto;
}
.site-footer__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
}
.site-footer nav h4 {
  font-family: var(--font-body);
  font-size: var(--type-0);
  font-weight: var(--weight-bold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
  margin: 0 0 var(--space-4);
}
.site-footer nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.site-footer nav a {
  color: var(--color-gray-300);
  text-decoration: none;
  font-size: var(--type-1);
  transition: color var(--transition-fast);
}
.site-footer nav a:hover { color: var(--color-white); }
.site-footer__brand { display: flex; flex-direction: column; gap: var(--space-3); }
.site-footer__brand img { width: max-content; }
.site-footer__brand p {
  color: var(--color-gray-300);
  font-size: var(--type-1);
  margin: 0;
}
.site-footer__legal {
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-10) var(--container-padding) 0;
  margin-top: var(--space-10);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  font-size: var(--type-0);
  color: var(--color-gray-500);
  gap: var(--space-4);
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .site-footer__legal {
    flex-direction: column;
    text-align: center;
  }
}

/* ========== BODY LAYOUT (public pages sticky footer) ========== */

body.page-public {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
body.page-public > main { flex: 1; }

/* ========== SKIP LINK (a11y) ========== */

.skip-link {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.skip-link:focus {
  position: fixed;
  left: var(--space-4);
  top: var(--space-4);
  width: auto;
  height: auto;
  padding: var(--space-3) var(--space-4);
  background: var(--color-navy);
  color: var(--color-white);
  z-index: 9999;
  border-radius: var(--radius-md);
}

/* ========== OVERLINE (label pattern) ========== */

.overline {
  font-family: var(--font-body);
  font-weight: var(--weight-bold);
  font-size: var(--type-0);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray-500);
  margin: 0 0 var(--space-3);
}

/* ========== CONTAINER ========== */

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