/* ==========================================================================
   Strada Seg - Proteção Veicular - Landing Page
   CSS puro (sem frameworks) - linguagem visual inspirada em
   Apple / Stripe / Linear: muito espaço em branco, tipografia moderna,
   micro animações, sombras discretas e cantos generosos.
   Inclui suporte a modo claro/escuro via [data-theme].
   ========================================================================== */

/* ----- 1. Reset básico ----- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

ul,
ol {
  list-style: none;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

::selection {
  background-color: rgba(79, 70, 229, 0.16);
  color: var(--color-text);
}

/* ----- 2. Variáveis (design tokens) ----- */
:root {
  /* Paleta da marca Strada Seg: azul marinho, branco e laranja */
  --color-primary: #0b2545;
  --color-primary-dark: #071830;
  --color-primary-tint: rgba(11, 37, 69, 0.07);
  --color-accent: #d59a2e;
  --color-accent-dark: #b9800f;
  --color-whatsapp: #25d366;

  --color-text: #0a0a0b;
  --color-text-light: #64748b;
  --color-text-faint: #94a3b8;

  --color-bg: #ffffff;
  --color-bg-alt: #f6f7fa;
  --color-border: rgba(10, 10, 11, 0.08);
  --color-border-strong: rgba(10, 10, 11, 0.14);

  /* Cor de fundo dos "chips" do logo, extraída do arquivo original,
     para o logotipo se integrar sem bordas visíveis. */
  --logo-chip-bg: #2a4972;

  /* Superfícies translúcidas que dependem do tema (header, menu mobile) */
  --header-bg: rgba(255, 255, 255, 0.7);
  --header-bg-scrolled: rgba(255, 255, 255, 0.85);
  --nav-mobile-bg: rgba(255, 255, 255, 0.98);
  --hover-tint: rgba(10, 10, 11, 0.045);

  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Sombras discretas, em camadas — estilo Stripe */
  --shadow-xs: 0 1px 2px rgba(10, 10, 11, 0.04);
  --shadow-sm: 0 1px 3px rgba(10, 10, 11, 0.06), 0 1px 2px rgba(10, 10, 11, 0.04);
  --shadow-md: 0 8px 20px -4px rgba(10, 10, 11, 0.08), 0 2px 6px rgba(10, 10, 11, 0.04);
  --shadow-lg: 0 24px 48px -12px rgba(10, 10, 11, 0.14);
  --shadow-glow: 0 12px 24px -6px rgba(11, 37, 69, 0.45);

  /* Easing premium (mesmo espírito Linear: entrada rápida, saída suave) */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --transition: all 0.3s var(--ease);
  --transition-fast: all 0.18s var(--ease);

  --container-width: 1180px;
}

/* ----- 2.1 Tema escuro -----
   Ativado via [data-theme="dark"] no <html> (ver script.js).
   Mantém as cores de marca (navy/laranja) como acento e inverte
   apenas a escala neutra (fundos, texto, bordas, superfícies). */
[data-theme="dark"] {
  --color-primary: #3b6bb0;
  --color-primary-dark: #2c5289;
  --color-primary-tint: rgba(59, 107, 176, 0.16);
  --color-accent: #e3ab3d;

  --color-text: #f1f3f7;
  --color-text-light: #a3aec2;
  --color-text-faint: #6c7690;

  --color-bg: #0c1220;
  --color-bg-alt: #101828;
  --color-border: rgba(255, 255, 255, 0.09);
  --color-border-strong: rgba(255, 255, 255, 0.16);

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 20px -4px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 24px 48px -12px rgba(0, 0, 0, 0.55);

  --header-bg: rgba(12, 18, 32, 0.72);
  --header-bg-scrolled: rgba(12, 18, 32, 0.92);
  --nav-mobile-bg: rgba(16, 24, 40, 0.98);
  --hover-tint: rgba(255, 255, 255, 0.06);
}

/* Transição suave ao alternar o tema */
body,
.header,
.card,
.about-card,
.step,
.contact-form,
.coverage-card,
.form-group input,
.form-group select,
.form-group textarea {
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}

/* ----- 3. Base ----- */
body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  color: var(--color-text);
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  color: var(--color-text-light);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: 24px;
}

/* Foco visível acessível, discreto e consistente */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ----- 4. Utilitários ----- */
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-pill);
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #34d399;
  box-shadow: 0 0 0 4px rgba(52, 211, 153, 0.25);
}

.section {
  padding: 128px 0;
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section__header {
  max-width: 640px;
  margin: 0 auto 72px;
  text-align: center;
}

.section__header h2 {
  font-size: clamp(1.75rem, 2.6vw, 2.5rem);
  margin-bottom: 16px;
}

.section__lead {
  color: var(--color-text-light);
  font-size: 1.1rem;
}

/* Classes usadas pelo JS para animações de entrada ao rolar a página */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ----- 5. Botões (estilo premium, pill-shaped) ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.94rem;
  transition: var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 1px 2px rgba(10, 10, 11, 0.06);
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--ghost {
  background-color: rgba(255, 255, 255, 0.06);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 15px 32px;
  font-size: 1rem;
}

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

.btn--whatsapp {
  background-color: var(--color-whatsapp);
  color: #fff;
  margin-top: 28px;
}

.btn--whatsapp:hover {
  filter: brightness(1.05);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -6px rgba(37, 211, 102, 0.4);
}

/* ----- 6. Header ----- */
.header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 1000;
  background-color: var(--header-bg);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: var(--transition-fast);
}

.header.is-scrolled {
  border-bottom-color: var(--color-border);
  background-color: var(--header-bg-scrolled);
  box-shadow: var(--shadow-xs);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
}

/* "Chip" com a cor de fundo do arquivo de logo original, para a logomarca
   se integrar sem deixar um retângulo visível sobre o header claro. */
.logo__badge {
  display: flex;
  align-items: center;
  background-color: var(--logo-chip-bg);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
}

.logo__img {
  display: block;
  height: 26px;
  width: auto;
}

.footer .logo__badge {
  background-color: transparent;
  padding: 0;
}

.footer .logo__img {
  height: 34px;
}

.nav {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav__link {
  display: inline-block;
  font-size: 0.89rem;
  font-weight: 500;
  color: var(--color-text-light);
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--color-text);
  background-color: var(--hover-tint);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.header__phone {
  font-size: 0.87rem;
  font-weight: 500;
  color: var(--color-text-light);
  display: none;
  transition: var(--transition-fast);
}

.header__phone:hover {
  color: var(--color-text);
}

.header__actions .btn {
  padding: 10px 20px;
  font-size: 0.87rem;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
}

.nav__toggle span {
  height: 2px;
  width: 100%;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: var(--transition-fast);
}

/* ----- 6.1 Botão de tema (claro/escuro) ----- */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-text);
  border-color: var(--color-border-strong);
  background-color: var(--color-bg-alt);
}

.theme-toggle__icon {
  width: 19px;
  height: 19px;
}

.theme-toggle__icon--moon {
  display: none;
}

[data-theme="dark"] .theme-toggle__icon--sun {
  display: none;
}

[data-theme="dark"] .theme-toggle__icon--moon {
  display: block;
}

/* ----- 7. Hero ----- */
.hero {
  position: relative;
  padding: 176px 0 128px;
  background: #05050a;
  color: #fff;
  overflow: hidden;
}

/* Banner de cobertura nacional como plano de fundo do hero (atrás do texto) */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}

/* Degradê escuro por cima da foto: garante contraste do texto sem
   depender só de text-shadow. Mais escuro à esquerda (onde fica o texto),
   mais transparente à direita (onde a foto "respira"). */
.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(100deg, rgba(3, 5, 12, 0.97) 0%, rgba(3, 5, 12, 0.92) 32%, rgba(3, 5, 12, 0.62) 60%, rgba(3, 5, 12, 0.28) 100%),
    linear-gradient(0deg, rgba(3, 5, 12, 0.55) 0%, rgba(3, 5, 12, 0) 30%);
}

.hero__inner {
  position: relative;
  z-index: 2;
}

.hero__content {
  max-width: 720px;
}

.hero__content h1 {
  font-size: clamp(2.1rem, 4.2vw, 3.4rem);
  color: #fff;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.55);
}

.hero__subtitle {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.15rem;
  max-width: 560px;
  margin-bottom: 40px;
  font-weight: 400;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.5);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 56px;
}

.hero__stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero__stats li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero__stats strong {
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.hero__stats span {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.65);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.5);
}


/* ----- 8. Sobre ----- */

/* Layout de 2 colunas reutilizado em "Sobre" e "Diferenciais" para combinar
   fotografia real com conteúdo. --reverse inverte a ordem (imagem à direita). */
.split-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 48px;
  align-items: center;
}

.split-grid--reverse {
  grid-template-columns: 1.15fr 1fr;
}

.split-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.split-media img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  display: block;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.about-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: left;
  transition: var(--transition);
}

.about-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: transparent;
}

.about-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  font-size: 1.5rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-tint);
  margin-bottom: 20px;
  transition: var(--transition);
}

.about-card:hover .about-card__icon {
  transform: scale(1.08) rotate(-4deg);
}

.about-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.about-card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
}

/* ----- 9. Segmentos (cards) ----- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.cards-grid--3 {
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 64px;
}

.card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  font-size: 1.7rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-tint);
  margin-bottom: 20px;
  transition: var(--transition);
}

.card:hover .card__icon {
  transform: scale(1.08) rotate(-4deg);
}

.card h3 {
  font-size: 1.08rem;
  margin-bottom: 8px;
}

.card p {
  font-size: 0.92rem;
  color: var(--color-text-light);
}

/* ----- 9.1 Coberturas e assistência 24h ----- */
.coverage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.coverage-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
}

.coverage-card__title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

.coverage-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 14px;
  font-size: 0.96rem;
  color: var(--color-text-light);
}

.coverage-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background-color: var(--color-accent);
}

.coverage-list li:last-child {
  margin-bottom: 0;
}

/* ----- 10. Diferenciais ----- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 48px;
}

.feature {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.feature__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.feature:hover .feature__icon {
  transform: translateY(-3px);
  border-color: var(--color-primary);
  background-color: var(--color-primary-tint);
}

.feature h3 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.feature p {
  font-size: 0.92rem;
  color: var(--color-text-light);
}

/* ----- 11. Como funciona (steps) ----- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step {
  position: relative;
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: left;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

/* Seta indicando a sequência dos passos. Fica só entre os cards
   (não depois do último) e muda de direção conforme o layout muda
   de linha (desktop/tablet) para coluna (mobile). */
.step:not(:last-child)::after {
  content: '\2192';
  position: absolute;
  top: 50%;
  right: -17px;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  line-height: 1;
  color: #fff;
  background-color: var(--color-accent);
  border-radius: 50%;
  border: 3px solid var(--color-bg-alt);
  z-index: 2;
}

/* Fundo laranja fixo + número escuro: garante contraste tanto no
   modo claro quanto no escuro (var(--color-text) sozinho invertia
   e deixava o número quase invisível no tema escuro). */
.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background-color: var(--color-accent);
  color: #14181f;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.step h3 {
  font-size: 1.02rem;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.88rem;
  color: var(--color-text-light);
}

/* ----- 12. Missão (faixa de destaque) ----- */
/* Faixa sempre no azul-marinho da marca, independente do tema ativo
   (mesmo tratamento do header/hero: elemento de identidade fixo). */
.mission {
  background: linear-gradient(135deg, #0b2545 0%, #071830 100%);
  padding: 100px 0;
  text-align: center;
  color: #fff;
}

.mission__eyebrow {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #d59a2e;
  margin-bottom: 20px;
}

.mission__quote {
  font-size: clamp(1.6rem, 3.4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 780px;
  margin: 0 auto 24px;
  color: #fff;
}

.mission__sub {
  max-width: 620px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.02rem;
}

/* ----- 13. Contato ----- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin: 4px 0 16px;
}

.contact-info p {
  color: var(--color-text-light);
  margin-bottom: 28px;
}

.contact-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.contact-form {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-tint);
}

.form-group textarea {
  resize: vertical;
}

.form-error {
  display: block;
  color: #dc2626;
  font-size: 0.8rem;
  min-height: 18px;
  margin-top: 6px;
}

.form-success {
  color: #059669;
  font-size: 0.9rem;
  text-align: center;
  margin-top: 18px;
  min-height: 20px;
}

/* ----- 14. Footer ----- */
.footer {
  background-color: #05050a;
  color: rgba(255, 255, 255, 0.7);
  padding-top: 80px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
}

.footer__brand p {
  margin: 18px 0 24px;
  font-size: 0.9rem;
  max-width: 320px;
  color: rgba(255, 255, 255, 0.5);
}

.footer__social {
  display: flex;
  gap: 12px;
}

.footer__social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  transition: var(--transition-fast);
}

.footer__social a:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  transform: translateY(-3px);
}

.footer__col h4 {
  color: #fff;
  font-size: 0.92rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer__col ul li {
  margin-bottom: 12px;
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
}

.footer__col a {
  transition: var(--transition-fast);
}

.footer__col a:hover {
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
}

.footer__bottom p {
  font-size: 0.8rem;
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
}

/* ----- 15. Botões flutuantes ----- */
.float-whatsapp {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--shadow-lg);
  z-index: 900;
  transition: var(--transition);
}

.float-whatsapp:hover {
  transform: scale(1.08) translateY(-2px);
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 92px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.05rem;
  box-shadow: var(--shadow-md);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}

.back-to-top:hover {
  background-color: var(--color-text);
  color: #fff;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ==========================================================================
   16. Responsividade
   ========================================================================== */

@media (min-width: 1300px) {
  .header__phone {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
}

@media (max-width: 1024px) {
  .about-grid,
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 44px;
  }

  /* Em 2 colunas, a seta depois do 2º card apontaria para o lado errado
     (o 3º card fica embaixo, não ao lado) — por isso ela vira uma seta
     para baixo, centralizada, em vez de ficar escondida. */
  .step:nth-child(2)::after {
    top: auto;
    right: 50%;
    bottom: -39px;
    transform: translateX(50%) rotate(90deg);
  }

  .coverage-grid {
    grid-template-columns: 1fr;
  }

  .split-grid {
    grid-template-columns: 1fr;
  }

  .split-grid--reverse .split-media {
    order: -1;
  }
}

/* Breakpoint elevado propositalmente: evita que o menu fique espremido
   entre a logo e os botões em telas médias (era a causa do desalinhamento) */
@media (max-width: 1180px) {
  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background-color: var(--nav-mobile-bg);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s var(--ease);
    justify-content: flex-start;
  }

  .nav.is-open {
    max-height: 480px;
  }

  .nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 24px 20px;
  }

  .nav__list li {
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link {
    display: block;
    padding: 16px 4px;
    border-radius: 0;
  }

  .nav__link:hover {
    background-color: transparent;
    padding-left: 10px;
  }

  .nav__toggle {
    display: flex;
  }

  .header__actions .btn--primary {
    display: none;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .section {
    padding: 88px 0;
  }

  .section__header {
    margin-bottom: 48px;
  }

  .about-grid,
  .cards-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .steps {
    row-gap: 44px;
  }

  /* Coluna única: todas as setas apontam para baixo, centralizadas
     entre um card e o próximo. */
  .step:not(:last-child)::after {
    top: auto;
    right: 50%;
    bottom: -39px;
    transform: translateX(50%) rotate(90deg);
  }

  .footer__inner {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 150px 0 80px;
  }

  .hero__cta {
    flex-direction: column;
  }

  .hero__stats {
    gap: 28px;
  }

  .contact-form {
    padding: 28px 24px;
  }

  .coverage-card {
    padding: 28px 24px;
  }

  .mission {
    padding: 72px 0;
  }
}