/* Header — Light premium chrome
   Transparente no Hero · glass branco no scroll. Logo slate · Code cyan. */
.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  background-color: var(--header-bg-top);
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--duration-normal) var(--ease-out),
    box-shadow var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-out),
    backdrop-filter var(--duration-normal) var(--ease-out);
}

.header--scrolled {
  background-color: var(--header-bg-scrolled);
  border-bottom-color: rgba(226, 232, 240, 0.85);
  backdrop-filter: blur(var(--header-blur)) saturate(1.35);
  -webkit-backdrop-filter: blur(var(--header-blur)) saturate(1.35);
  box-shadow: var(--header-shadow-scrolled);
}

/* Menu aberto: fundo sólido (sem backdrop-filter) —
   filter/backdrop no .header cria containing block e prende o drawer fixed. */
.header--menu-open {
  background-color: var(--color-bg-elevated);
  border-bottom-color: var(--color-border-light);
  box-shadow: var(--header-shadow-scrolled);
}

.header__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: var(--space-4);
  height: var(--header-height);
}

.header__logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  min-height: 2.75rem;
}

.header__wordmark {
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.04em;
  color: var(--color-text-primary);
  line-height: 1;
}

.header__wordmark-accent {
  color: var(--color-accent-500);
}

.header__nav {
  display: none;
}

.header__nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
}

.header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 2.75rem;
  padding-block: var(--space-2);
  font-size: var(--text-body-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
}

.header__nav-link:hover {
  color: var(--color-accent-600);
}

.header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.4rem;
  height: 1px;
  background-color: var(--color-accent-500);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--duration-normal) var(--ease-out);
}

.header__nav-link.is-active {
  color: var(--color-text-primary);
}

.header__nav-link.is-active::after {
  transform: scaleX(1);
}

.header__nav-link:focus-visible {
  outline: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-focus);
}

.header__actions {
  display: none;
  align-items: center;
  justify-self: end;
}

.header__cta {
  flex-shrink: 0;
  min-height: 2.5rem;
  padding-inline: var(--space-5);
  font-size: var(--text-body-sm);
  border-radius: var(--radius-md);
  box-shadow: none;
}

@media (hover: hover) {
  .header__cta:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-accent);
  }
}

.header__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  justify-self: end;
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  transition: background-color var(--duration-fast) var(--ease-out);
}

.header__toggle:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.header__toggle-icon {
  width: 1.5rem;
  height: 1.5rem;
}

.header__toggle-icon--close {
  display: none;
}

.header--menu-open .header__toggle-icon--open,
.header__toggle.is-active .header__toggle-icon--open {
  display: none;
}

.header--menu-open .header__toggle-icon--close,
.header__toggle.is-active .header__toggle-icon--close {
  display: block;
}

/* Tablet drawer (mobile ≤767 usa bottom sheet; overlay oculto lá) */
.header__overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  background-color: var(--color-bg-base);
  visibility: hidden;
  opacity: 0;
  transition:
    opacity var(--duration-normal) var(--ease-out),
    visibility var(--duration-normal) var(--ease-out);
}

.header--menu-open .header__overlay {
  visibility: visible;
  opacity: 1;
}

.header__drawer {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 28rem;
  margin-inline: auto;
  padding-top: calc(var(--header-height) + var(--space-8));
  padding-inline: var(--gutter-mobile);
  padding-bottom: max(var(--space-8), env(safe-area-inset-bottom));
}

.header__drawer-label {
  margin-bottom: var(--space-4);
  font-size: var(--text-overline);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-overline);
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.header__drawer-nav {
  flex: 1;
  overflow-y: auto;
}

.header__drawer-list {
  display: flex;
  flex-direction: column;
}

.header__drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 3.25rem;
  padding-block: var(--space-3);
  font-size: var(--text-body-lg);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-light);
  transition: color var(--duration-fast) var(--ease-out);
}

.header__drawer-link.is-active {
  color: var(--color-text-accent);
}

.header__drawer-link:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.header__drawer-chevron {
  flex-shrink: 0;
  width: 1.125rem;
  height: 1.125rem;
  color: var(--color-text-tertiary);
}

.header__drawer-cta {
  padding-top: var(--space-8);
}

.header__drawer-meta {
  margin-top: var(--space-4);
  text-align: center;
  font-size: var(--text-body-sm);
  line-height: var(--line-height-body-sm);
  color: var(--color-text-tertiary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition:
    background-color var(--duration-fast) var(--ease-out),
    box-shadow var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  color: var(--color-text-on-accent);
  background-color: var(--color-accent-500);
}

.btn--primary:hover {
  background-color: var(--color-accent-600);
  box-shadow: var(--shadow-btn-primary-hover);
}

@media (hover: hover) {
  .btn--primary:hover,
  .btn--whatsapp:hover {
    transform: translateY(-1px);
  }
}

.btn--secondary {
  color: var(--color-text-primary);
  background-color: transparent;
  border: 1px solid var(--color-border-default);
}

.btn--secondary:hover {
  background-color: color-mix(in srgb, var(--color-bg-elevated) 80%, transparent);
  border-color: color-mix(in srgb, var(--color-accent-500) 35%, var(--color-border-default));
}

.btn--ghost {
  color: var(--color-text-accent);
  background-color: transparent;
  border: 1px solid transparent;
}

.btn--ghost:hover {
  color: var(--color-accent-400);
  background-color: color-mix(in srgb, var(--color-accent-500) 8%, transparent);
}

.btn--ghost-light {
  color: var(--color-text-accent-light);
  background-color: transparent;
  border: 1px solid var(--color-border-default);
}

.btn--ghost-light:hover {
  color: var(--color-text-primary);
  background-color: color-mix(in srgb, var(--color-accent-500) 10%, transparent);
  border-color: var(--color-accent-500);
}

.btn--whatsapp {
  color: var(--color-text-on-accent);
  background-color: var(--color-accent-500);
}

.btn--whatsapp:hover {
  background-color: var(--color-accent-600);
  box-shadow: var(--shadow-btn-primary-hover);
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn--sm {
  min-height: 2.25rem;
  padding-inline: var(--space-4);
  font-size: var(--text-body-sm);
}

.btn--md {
  min-height: 2.75rem;
  padding-inline: var(--space-6);
  font-size: var(--text-body-sm);
}

.btn--lg {
  min-height: 3.25rem;
  padding-inline: var(--space-8);
  font-size: var(--text-body-md);
}

/* Card primitive — pages compose; do not invent parallel families */
.card {
  padding: var(--card-padding);
  background: transparent;
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  box-shadow: none;
}

.card--elevated {
  box-shadow: var(--shadow-sm);
}

.card--subtle {
  background: var(--color-bg-subtle);
  box-shadow: none;
}

.card--dark {
  background: var(--color-bg-elevated);
  border-color: var(--color-border-default);
  color: var(--color-text-primary);
}

.card--lg {
  padding: var(--card-padding-lg);
}

@media (hover: hover) {
  .card--interactive:hover {
    transform: translateY(var(--card-hover-lift));
    box-shadow: var(--shadow-md);
  }
}

.btn__icon {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
}

.btn--full {
  width: 100%;
}

.link-ghost {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-height: 2.75rem;
  font-size: var(--text-body-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-600);
  text-decoration: none;
  background-image: linear-gradient(currentColor, currentColor);
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0 1px;
  transition:
    color var(--duration-fast) var(--ease-out),
    gap var(--duration-fast) var(--ease-out),
    background-size var(--duration-normal) var(--ease-out);
}

.link-ghost__icon {
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
  transition: transform var(--duration-fast) var(--ease-out);
}

@media (hover: hover) {
  .link-ghost:hover {
    color: var(--color-accent-500);
    gap: var(--space-3);
    background-size: 100% 1px;
  }

  .link-ghost:hover .link-ghost__icon {
    transform: translateX(2px);
  }
}

/* Section header — padrão compartilhado entre seções */
.section-header {
  max-width: var(--section-header-max);
  margin-inline: auto;
  margin-bottom: var(--section-header-gap);
  text-align: center;
}

.section-header--left {
  margin-inline: 0;
  text-align: left;
  max-width: 36rem;
}

.section-header--inverse .section-header__title {
  color: var(--color-text-primary);
}

.section-header--inverse .section-header__subtitle {
  color: var(--color-text-secondary);
}

/* Lista de benefícios/features — marcador unificado */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.feature-list__item {
  position: relative;
  padding-left: 1.25rem;
  font-size: var(--text-body-sm);
  line-height: var(--line-height-body-sm);
  color: var(--color-text-secondary);
}

.feature-list__item::before {
  content: "";
  position: absolute;
  top: 0.5em;
  left: 0;
  width: 0.4375rem;
  height: 0.4375rem;
  border-radius: 50%;
  background-color: var(--color-accent-500);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.12);
}

.feature-list--inverse .feature-list__item {
  color: var(--color-text-secondary);
}

@media (min-width: 1024px) {
  .section-header {
    margin-bottom: var(--section-header-gap-lg);
  }

  .header__inner {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  }

  .header__logo {
    justify-self: start;
  }

  .header__nav {
    display: block;
    justify-self: center;
  }

  .header__actions {
    display: flex;
  }

  .header__toggle {
    display: none;
  }

  .header__overlay {
    display: none;
  }

  .header--menu-open .header__overlay {
    display: none;
  }
}

@media (hover: hover) {
  .header__nav-link:hover {
    color: var(--color-accent-600);
  }

  .header__nav-link:hover::after {
    transform: scaleX(1);
  }

  .header__nav-link.is-active:hover {
    color: var(--color-text-accent);
  }

  .header__toggle:hover {
    background-color: var(--color-secondary-100);
  }

  .header__drawer-link:hover {
    color: var(--color-text-accent);
  }
}