/* ===== Betão — header.css : sticky header, nav, ações CTA ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(18, 19, 22, .96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: var(--header-h);
  max-width: var(--container);
  margin: 0 auto;
  padding: .55rem var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  text-decoration: none;
  color: var(--color-text);
  flex-shrink: 0;
}

.brand__mark {
  width: 40px;
  height: 40px;
  border-radius: 11px;
  background: var(--color-dark);
  border: 1px solid rgba(242, 97, 1, .45);
  display: grid;
  place-items: center;
  box-shadow: 0 6px 18px rgba(242, 97, 1, .22);
  overflow: hidden;
}

.brand__mark img { width: 26px; height: 26px; }

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand__name {
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: -.02em;
  color: var(--color-text);
}

.brand__tag {
  font-size: .66rem;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: .08em;
}

.brand__tag em {
  font-style: normal;
  color: var(--color-primary);
  font-weight: 700;
}

.main-nav {
  display: none;
  margin-left: var(--space-4);
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: .15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: .45rem .85rem;
  border-radius: var(--radius-pill);
  color: var(--color-muted);
  font-size: .92rem;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition), background var(--transition);
}

.main-nav a:hover,
.main-nav a.is-active {
  color: var(--color-text);
  background: rgba(255, 255, 255, .05);
}

.main-nav a.is-active { color: var(--color-primary); }

.header-icons {
  display: none;
  align-items: center;
  gap: .35rem;
  margin-left: auto;
}

.icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-muted);
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition), transform var(--transition);
  text-decoration: none;
}

.icon-btn:hover {
  color: var(--color-primary);
  border-color: rgba(242, 97, 1, .4);
  transform: translateY(-1px);
}

.icon-btn svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; }

.balance-widget {
  display: none;
  align-items: center;
  gap: .55rem;
  padding: .42rem .85rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  margin-right: .35rem;
}

.balance-widget__label {
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--color-muted);
}

.balance-widget__value {
  font-size: .92rem;
  font-weight: 800;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin-left: auto;
}

.header-actions .btn { min-height: 42px; padding: .55rem 1.05rem; font-size: .88rem; }

.burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  cursor: pointer;
  margin-left: auto;
}

.burger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 1100;
  background: rgba(10, 11, 13, .72);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(86vw, 340px);
  height: 100%;
  background: var(--color-dark);
  border-left: 1px solid var(--color-border);
  padding: var(--space-5) var(--space-4) calc(var(--bottomnav-h) + var(--space-5));
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform .28s ease;
}

.mobile-menu.is-open .mobile-menu__panel { transform: translateX(0); }

.mobile-menu__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.mobile-menu__close {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
}

.mobile-menu nav ul {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
}

.mobile-menu nav a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: .65rem .85rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
}

.mobile-menu nav a:hover,
.mobile-menu nav a.is-active {
  color: var(--color-primary);
  background: rgba(242, 97, 1, .1);
}

.mobile-menu__cta {
  display: grid;
  gap: .65rem;
}

/* ---- Header-top disclaimer strip ---- */
.header-note {
  background: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
  font-size: .76rem;
  color: var(--color-muted);
  text-align: center;
  padding: .45rem var(--space-4);
}

.header-note strong { color: var(--color-text); }

@media (min-width: 861px) {
  .burger { display: none; }
  .main-nav { display: block; }
  .header-actions { margin-left: auto; }
  .balance-widget { display: inline-flex; }
}

@media (min-width: 1100px) {
  .header-icons { display: flex; margin-left: var(--space-3); }
  .header-actions { margin-left: var(--space-3); }
}