/* ==========================================================================
   Clínica Dentária Graça Ferraz — Folha de Estilos: Serviços (servicos-v2)
   Linguagem: Índice de Cuidado (Editorial Institucional, Calma e Documental)
   Padrão Visual de Elite — Refinamento Editorial Impeccable
   ========================================================================== */

:root {
  /* Paleta de Cores e Superfícies (Tokens Oficiais) */
  --bg-base: #F4F0EA;
  --bg-surface: #FFFDF9;
  --bg-archive: #E9E5DD;
  --bg-dark: #1E1D1A;
  
  --text-main: #1E1D1A;
  --text-secondary: #544E47;
  --text-muted: #736C64;
  --text-light: #F4F0EA;
  --text-light-secondary: #D8D0C6;
  
  --border-line: #D8D0C6;
  --border-subtle: rgba(216, 208, 198, 0.5);
  --border-dark-line: #3E3B35;
  
  --action: #6E5647;
  --action-hover: #574438;
  --documental: #36545A;
  --documental-light: #4A727A;
  --documental-bg: rgba(54, 84, 90, 0.06);

  /* Tipografia */
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Espaçamentos e Estrutura */
  --container-max: 1200px;
  --header-height: 80px;
  --section-padding-y: clamp(4.5rem, 7.5vw, 7.5rem);
  --section-padding-y-sm: clamp(3rem, 5vw, 5rem);
  --radius-sm: 3px;
  --radius-md: 6px;
  --transition-default: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg-base);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  padding-bottom: 0;
}

@media (max-width: 768px) {
  body {
    padding-bottom: 86px; /* Espaço para a barra móvel fixa */
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-default), opacity var(--transition-default), border-color var(--transition-default), background-color var(--transition-default);
}

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

address {
  font-style: normal;
}

/* Âncoras com Scroll Margin Top Respeitando o Header */
#hero,
#indice-servicos,
#areas-cuidado,
#como-funciona,
#faq,
#contacto,
#avaliacao-e-diagnostico,
#prevencao-e-acompanhamento,
#implantologia,
#estetica-dentaria,
#alinhamento-dentario,
#branqueamento-dentario {
  scroll-margin-top: calc(var(--header-height) + 1.75rem);
}

/* Acessibilidade: Skip Link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--bg-dark);
  color: var(--text-light);
  padding: 0.75rem 1.25rem;
  z-index: 1000;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: top var(--transition-default);
}

.skip-link:focus {
  top: 1rem;
  outline: 2px solid var(--action);
  outline-offset: 2px;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 4vw, 2.5rem);
  padding-right: clamp(1.25rem, 4vw, 2.5rem);
}

/* --------------------------------------------------------------------------
   Tipografia Editorial
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--documental);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(2.15rem, 4.2vw, 3.25rem);
  margin-bottom: 1.125rem;
  line-height: 1.12;
}

.section-support {
  font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.62;
}

/* --------------------------------------------------------------------------
   Botões e Ações
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 46px;
  padding: 0.6875rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: all var(--transition-default);
  cursor: pointer;
  text-align: center;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--action);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--action);
  color: #FFFFFF;
  border: 1px solid var(--action);
}

.btn-primary:hover {
  background-color: var(--action-hover);
  border-color: var(--action-hover);
}

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

.btn-secondary:hover {
  background-color: rgba(30, 29, 26, 0.04);
  border-color: var(--text-main);
}

.btn-dark-secondary {
  background-color: transparent;
  color: var(--text-light);
  border: 1px solid var(--border-dark-line);
}

.btn-dark-secondary:hover {
  background-color: rgba(244, 240, 234, 0.08);
  border-color: var(--text-light-secondary);
}

/* --------------------------------------------------------------------------
   Header Institucional
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(244, 240, 234, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-line);
  z-index: 90;
  height: var(--header-height);
  display: flex;
  align-items: center;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.brand-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  border: 1px solid var(--border-line);
}

.brand-info {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.2;
}

.brand-location {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.nav-desktop {
  display: none;
  align-items: center;
  gap: 1.75rem;
}

@media (min-width: 960px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 0.25rem 0;
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link.is-active {
  color: var(--text-main);
  font-weight: 600;
}

.nav-link.is-active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--documental);
  border-radius: 1px;
}

.header-actions {
  display: none;
  align-items: center;
  gap: 1.25rem;
}

@media (min-width: 960px) {
  .header-actions {
    display: flex;
  }
}

.header-phone {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.5rem;
  min-height: 44px;
}

.header-phone:hover {
  color: var(--text-main);
}

.mobile-menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  color: var(--text-main);
  border-radius: var(--radius-sm);
}

.mobile-menu-toggle:focus-visible {
  outline: 2px solid var(--action);
}

@media (min-width: 960px) {
  .mobile-menu-toggle {
    display: none;
  }
}

/* Drawer Mobile */
.mobile-menu-drawer {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: auto;
  height: calc(100vh - var(--header-height));
  height: calc(100dvh - var(--header-height));
  background-color: var(--bg-base);
  border-top: 1px solid var(--border-line);
  padding: 1.5rem clamp(1.25rem, 4vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
  z-index: 85;
  overflow-y: auto;
  overscroll-behavior: contain;
}

.mobile-menu-drawer.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-menu-drawer .nav-link {
  font-size: 1.125rem;
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(216, 208, 198, 0.4);
}

.mobile-menu-drawer-actions {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* --------------------------------------------------------------------------
   1. Secção Hero (#hero)
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: clamp(2.5rem, 5vw, 4.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 6rem);
  border-bottom: 1px solid var(--border-line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 4.5rem;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-location-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--documental);
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.hero-title {
  font-size: clamp(2.4rem, 4.8vw, 3.85rem);
  line-height: 1.1;
  margin-top: 0.5rem;
  margin-bottom: 1.35rem;
}

.hero-support {
  font-size: clamp(1.0625rem, 1.6vw, 1.25rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 580px;
  margin-bottom: 1.75rem;
}

.hero-trust-line {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  color: var(--documental);
  margin-bottom: 2.25rem;
  padding-left: 1rem;
  border-left: 2px solid var(--documental);
  line-height: 1.4;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.hero-media-wrapper {
  position: relative;
}

.hero-image-frame {
  width: 100%;
  max-height: 520px;
  overflow: hidden;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-line);
  background-color: var(--bg-archive);
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 5;
}

/* --------------------------------------------------------------------------
   2. Secção Índice de Serviços (#indice-servicos) — Estrutura Editorial Aberta
   -------------------------------------------------------------------------- */
.index-section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-line);
}

.index-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 960px) {
  .index-layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 5rem;
    align-items: start;
  }
}

.index-sidebar {
  display: flex;
  flex-direction: column;
}

@media (min-width: 960px) {
  .index-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 2.5rem);
  }
}

.index-context-note {
  display: inline-block;
  font-size: 0.8125rem;
  color: var(--documental);
  background-color: var(--documental-bg);
  padding: 0.5rem 0.75rem;
  border-left: 2px solid var(--documental);
  border-radius: 2px;
  margin-top: 1.5rem;
  font-weight: 500;
  line-height: 1.5;
}

.index-nav-content {
  display: flex;
  flex-direction: column;
  gap: 2.75rem;
}

.index-group-block {
  border-top: 1px solid var(--border-line);
  padding-top: 1.5rem;
}

.index-group-heading {
  font-size: 1.25rem;
  color: var(--documental);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
}

.index-group-num {
  font-size: 0.9375rem;
  font-family: var(--font-body);
  font-weight: 600;
  opacity: 0.7;
}

.index-items-list {
  display: flex;
  flex-direction: column;
}

.index-item-link {
  display: block;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: padding-left var(--transition-default), color var(--transition-default);
}

.index-item-link:last-child {
  border-bottom: none;
}

.index-item-link:hover, .index-item-link:focus-visible {
  padding-left: 0.5rem;
}

.index-item-link.is-featured .index-item-title-text {
  color: var(--documental);
}

.index-item-title-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
}

.index-item-title-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.2;
}

.index-item-link:hover .index-item-title-text {
  color: var(--documental);
}

.index-item-arrow {
  color: var(--documental);
  font-size: 1.125rem;
  transition: transform var(--transition-default);
  flex-shrink: 0;
}

.index-item-link:hover .index-item-arrow {
  transform: translateX(5px);
}

.index-item-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-top: 0.35rem;
  max-width: 620px;
}

.index-footer-note {
  margin-top: 2rem;
  padding: 1rem 1.25rem;
  background-color: var(--bg-archive);
  border-left: 2px solid var(--documental);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   3. Secção Áreas de Cuidado (#areas-cuidado) — Capítulos Editoriais com Eixo
   -------------------------------------------------------------------------- */
.areas-section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  border-bottom: 1px solid var(--border-line);
}

.areas-header {
  margin-bottom: 4rem;
  max-width: 780px;
}

.areas-detail-list {
  display: flex;
  flex-direction: column;
}

.area-chapter {
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--border-line);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  transition: background-color var(--transition-default);
}

@media (min-width: 860px) {
  .area-chapter {
    grid-template-columns: 140px 1fr;
    gap: 3.5rem;
    align-items: baseline;
  }
}

.area-num {
  font-family: var(--font-display);
  font-size: clamp(3rem, 5vw, 4.5rem);
  color: var(--documental);
  line-height: 0.95;
  font-weight: 400;
  opacity: 0.85;
}

.area-chapter-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.area-chapter-title {
  font-size: clamp(1.75rem, 2.8vw, 2.35rem);
  line-height: 1.15;
}

.area-chapter-body {
  font-size: clamp(1.0625rem, 1.4vw, 1.2rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 700px;
}

/* Diferenciação sutil entre as fases do cuidado */
.area-chapter.is-phase-recovery {
  background-color: rgba(54, 84, 90, 0.03);
  padding-left: clamp(1rem, 2.5vw, 2rem);
  padding-right: clamp(1rem, 2.5vw, 2rem);
  border-left: 3px solid var(--documental);
  margin: 0.5rem 0;
}

.areas-final-note {
  margin-top: 3.5rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-line);
  border-left: 3px solid var(--action);
  font-size: 0.9375rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   4. Secção Como Começa o Cuidado (#como-funciona) — Principal Momento Escuro
   -------------------------------------------------------------------------- */
.how-it-works-section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  background-color: var(--bg-dark);
  color: var(--text-light);
  border-bottom: 1px solid var(--border-dark-line);
}

.how-it-works-section h2, .how-it-works-section h3 {
  color: var(--text-light);
}

.how-header {
  margin-bottom: 3.5rem;
  max-width: 780px;
}

.how-header .section-eyebrow {
  color: var(--text-light-secondary);
}

.how-header .section-support {
  color: var(--text-light-secondary);
}

.steps-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 3.5rem;
  position: relative;
}

@media (min-width: 860px) {
  .steps-timeline {
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
  }

  .steps-timeline::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 24px;
    right: 24px;
    height: 1px;
    background-color: var(--border-dark-line);
    z-index: 1;
  }
}

.step-card {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background-color: var(--bg-dark);
  border: 1px solid var(--border-dark-line);
  color: var(--text-light);
  font-family: var(--font-display);
  font-size: 1.35rem;
  border-radius: 50%;
  margin-bottom: 0.5rem;
}

.step-title {
  font-size: 1.35rem;
  line-height: 1.25;
}

.step-body {
  font-size: 0.9375rem;
  color: var(--text-light-secondary);
  line-height: 1.6;
}

.how-actions-wrapper {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  align-items: flex-start;
  padding-top: 2rem;
  border-top: 1px solid var(--border-dark-line);
}

.how-prudence-note {
  font-size: 0.875rem;
  color: var(--text-light-secondary);
  font-style: italic;
}

/* --------------------------------------------------------------------------
   5. Secção FAQ e Confiança (#faq)
   -------------------------------------------------------------------------- */
.faq-section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-line);
}

.faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}

@media (min-width: 960px) {
  .faq-layout {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: start;
    gap: 4.5rem;
  }
}

.faq-header {
  margin-bottom: 2.5rem;
}

.faq-accordion {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border-line);
}

.faq-item {
  border-bottom: 1px solid var(--border-line);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  padding: 1.375rem 0;
  min-height: 48px;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-main);
  transition: color var(--transition-default);
}

.faq-trigger:hover {
  color: var(--documental);
}

.faq-trigger:focus-visible {
  outline: 2px solid var(--action);
  outline-offset: 2px;
}

.faq-icon {
  flex-shrink: 0;
  margin-left: 1rem;
  transition: transform var(--transition-default);
  color: var(--documental);
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
}

.faq-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-panel-inner {
  padding-bottom: 1.5rem;
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.65;
}

/* Bloco Lateral de Confiança */
.faq-trust-card {
  background-color: var(--bg-archive);
  border: 1px solid var(--border-line);
  border-radius: var(--radius-sm);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.faq-trust-phrase {
  font-family: var(--font-display);
  font-size: 1.75rem;
  line-height: 1.2;
  color: var(--documental);
}

.faq-trust-body {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   6. Secção Contacto e Fecho (#contacto) — Presença Leve, Clara e Acolhedora
   -------------------------------------------------------------------------- */
.contact-section {
  padding-top: var(--section-padding-y);
  padding-bottom: var(--section-padding-y);
  background-color: var(--bg-surface);
  color: var(--text-main);
  border-bottom: 1px solid var(--border-line);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3.5rem;
}

@media (min-width: 860px) {
  .contact-grid {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 5rem;
    align-items: start;
  }
}

.contact-col-actions {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.contact-title {
  font-size: clamp(2.15rem, 3.8vw, 3rem);
  line-height: 1.12;
}

.contact-support {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 520px;
}

.contact-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.5rem;
}

.contact-closing-line {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-style: italic;
  color: var(--documental);
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-line);
}

.contact-col-details {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  padding-left: 0;
}

@media (min-width: 860px) {
  .contact-col-details {
    padding-left: 2rem;
    border-left: 1px solid var(--border-line);
  }
}

.contact-detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.contact-detail-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--documental);
  font-weight: 600;
}

.contact-detail-value {
  font-size: 1.0625rem;
  color: var(--text-main);
  line-height: 1.5;
}

.contact-phone-highlight {
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-phone-highlight:hover {
  color: var(--action);
}

.contact-link-external {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--documental);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: color var(--transition-default);
}

.contact-link-external:hover {
  color: var(--documental-light);
}

/* --------------------------------------------------------------------------
   Rodapé Institucional
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: #161513;
  color: var(--text-light);
  padding-top: clamp(3rem, 5vw, 4.5rem);
  padding-bottom: clamp(3rem, 5vw, 4.5rem);
  border-top: 1px solid var(--border-dark-line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 3rem;
  }
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}

.footer-brand-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-light);
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 600;
  color: var(--text-light-secondary);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9375rem;
  color: var(--text-light-secondary);
  transition: color var(--transition-default);
}

.footer-link:hover {
  color: var(--text-light);
}

.footer-link.is-active {
  color: var(--text-light);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Barra de Ação Móvel Fixa (Mobile Sticky Bar)
   -------------------------------------------------------------------------- */
.mobile-sticky-bar {
  display: none;
}

@media (max-width: 768px) {
  .mobile-sticky-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(244, 240, 234, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-line);
    padding: 0.75rem clamp(1.25rem, 4vw, 2.5rem);
    padding-bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    z-index: 80;
    box-shadow: 0 -4px 16px rgba(30, 29, 26, 0.05);
  }

  .mobile-sticky-bar .btn {
    width: 100%;
    min-height: 44px;
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
  }
}

/* --------------------------------------------------------------------------
   Animações Suaves e Scroll Reveal
   -------------------------------------------------------------------------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1), transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-in-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in-up {
    opacity: 1 !important;
    transform: none !important;
  }
}