/* css/sections/header.css */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  transition: background-color var(--transition-smooth), padding var(--transition-smooth), box-shadow var(--transition-smooth);
  padding: var(--space-lg) 0;
  background-color: transparent;
}

.header--sticky {
  background-color: oklch(95.07% 0.005 50 / 0.85); /* --color-base com transparência */
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: var(--space-sm) 0;
  box-shadow: var(--shadow-ambient);
  border-bottom: 1px solid oklch(73.55% 0.134 83.18 / 0.15);
}

.header__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.header__logo-img {
  height: 48px;
  width: auto;
  transition: height var(--transition-smooth);
}

.header--sticky .header__logo-img {
  height: 38px;
}

.header__nav {
  display: flex;
  align-items: center;
}

.header__list {
  display: flex;
  gap: var(--space-xl);
}

.header__link {
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--size-small);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-contrast); /* Branco por padrão sobre o Hero escuro */
  text-decoration: none;
  position: relative;
  padding: var(--space-xs) 0;
  transition: color var(--transition-smooth);
}

.header__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-gold-primary);
  transition: width var(--transition-smooth);
}

.header__link:hover {
  color: var(--color-gold-primary);
}

.header__link:hover::after,
.header__link--active::after {
  width: 100%;
}

.header__link--active {
  color: var(--color-gold-primary);
  font-weight: var(--weight-semibold);
}

/* Cor do link no estado Sticky (fundo claro) */
.header--sticky .header__link {
  color: var(--color-text-main);
}

/* Hamburguer Menu (Mobile) */
.header__toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  z-index: 1100;
}

.header__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-contrast); /* Branco por padrão no topo */
  transition: transform var(--transition-smooth), opacity var(--transition-smooth), background-color var(--transition-smooth);
}

/* Toggle escuro quando sticky ou quando o menu móvel estiver aberto */
.header--sticky .header__toggle span,
.header__toggle--open span {
  background-color: var(--color-text-main);
}

/* Mobile Breakpoint */
@media (max-width: 767px) {
  .header__toggle {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-base);
    box-shadow: var(--shadow-panel);
    padding: var(--space-4xl) var(--space-2xl) var(--space-2xl);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    transition: right var(--transition-smooth);
    z-index: 1050;
  }

  .header__nav--open {
    right: 0;
  }

  .header__list {
    flex-direction: column;
    gap: var(--space-2xl);
    width: 100%;
  }

  .header__link {
    font-size: 1.1rem;
    width: 100%;
    display: block;
    color: var(--color-text-main); /* Escuro para legibilidade no drawer claro */
    border-bottom: 1px solid oklch(91.68% 0.007 50);
    padding-bottom: var(--space-sm);
  }

  /* Hamburguer transformado em X */
  .header__toggle--open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .header__toggle--open span:nth-child(2) {
    opacity: 0;
  }

  .header__toggle--open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}