/* ============================================
   ALT Contábil — Header / Nav / Mobile Menu
   ============================================ */

/* --- Fixed Top Container --- */
.alt-top-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
}

/* --- Announcement Bar --- */
.alt-announcement {
  background: linear-gradient(90deg, #ECE5D3, #FFFFFF);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
}
.alt-announcement__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 9px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  position: relative;
  font-size: 0.86rem;
  font-weight: 600;
  flex-wrap: wrap;
}
.alt-announcement__live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.alt-announcement__dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-red);
  animation: altPulse 1.6s infinite;
}
.alt-announcement__live-text { font-weight: 800; }
.alt-announcement__close {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(22,37,12,0.12);
  border: none;
  color: var(--color-primary-dark);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-size: 1rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Header --- */
.alt-header {
  backdrop-filter: blur(10px);
  transition: background .3s, box-shadow .3s;
}
.alt-header__inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.alt-header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.alt-header__logo img {
  width: auto;
}

/* --- Desktop Navigation --- */
.alt-nav {
  display: flex;
  align-items: center;
  gap: 30px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.96rem;
  color: var(--color-accent-light);
}
.alt-nav a {
  position: relative;
}
.alt-nav__indicator {
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: opacity .25s, transform .25s;
  transform-origin: left;
}
.alt-nav__reality { color: var(--color-white); font-weight: 700; }

/* --- Header CTA --- */
.alt-header-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.alt-header-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 22px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.92rem;
  border-radius: 11px;
  box-shadow: 0 8px 22px rgba(236,229,211,0.32);
  transition: transform .2s, box-shadow .2s;
}

/* --- Burger Button --- */
.alt-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 11px;
  background: rgba(245,243,234,0.12);
  border: 1px solid rgba(245,243,234,0.25);
  color: var(--color-accent-light);
  flex-direction: column;
  gap: 4px;
}
.alt-burger__line {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-accent-light);
  border-radius: 2px;
}

/* --- Mobile Menu --- */
.alt-mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(22,37,12,0.97);
  backdrop-filter: blur(8px);
  display: none;
  flex-direction: column;
  padding: 26px 28px;
  animation: altFadeUp .35s ease;
}
.alt-mobile-menu.is-open {
  display: flex;
}
.alt-mobile-menu__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 42px;
}
.alt-mobile-menu__top img { height: 44px; }
.alt-mobile-menu__close {
  background: rgba(245,243,234,0.12);
  border: none;
  color: var(--color-accent-light);
  width: 46px;
  height: 46px;
  border-radius: 11px;
  font-size: 1.6rem;
}
.alt-mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-accent-light);
}
.alt-mobile-menu__link {
  padding: 12px 0;
  border-bottom: 1px solid rgba(245,243,234,0.1);
}
.alt-mobile-menu__link--last {
  padding: 12px 0;
  border-bottom: none;
}
.alt-mobile-menu__link--reality { color: var(--color-white); }
.alt-mobile-menu__cta {
  margin-top: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 16px;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  border-radius: 12px;
}

/* --- Header/Nav Responsive --- */
@media (max-width: 768px) {
  .alt-announcement__inner {
    display: none;
    font-size: 0.78rem;
    padding: 8px 40px 8px 16px;
    text-align: center;
  }
  .alt-header__inner {
    padding: 10px 16px;
  }
  .alt-header__logo img {
    height: 36px;
  }
}

@media (max-width: 480px) {
  .alt-announcement__inner {
    font-size: 0.72rem;
    gap: 6px;
    padding: 7px 36px 7px 12px;
  }
  .alt-announcement__close {
    right: 10px;
    width: 20px;
    height: 20px;
    font-size: 0.85rem;
  }
  .alt-header__inner {
    padding: 10px 12px;
  }
  .alt-mobile-menu {
    padding: 20px 16px;
  }
  .alt-mobile-menu__nav {
    font-size: 1.3rem;
  }
}