/* ====================================================
   VARIÁVEIS DE DESIGN
   ==================================================== */
:root {
  --color-charcoal: #333D47;
  --color-teal: #3ECFBE;
  --color-teal-dark: #2ab5a5;
  --color-white: #FFFFFF;
  --color-off-white: #F7F8FA;
  --color-gray-light: #E8EAED;
  --color-gray-mid: #9AA3AD;
  --color-gray-dark: #4A5568;
  --color-black-hero: #0D0D0D;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Espaçamentos */
  --section-py: 96px;
  --container-max: 1200px;
  --container-px: 24px;

  /* Transições */
  --transition-fast: 200ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;

  /* Header */
  --header-h: 72px;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

/* ====================================================
   RESET & BASE
   ==================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  color: var(--color-charcoal);
  background-color: var(--color-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul,
ol {
  list-style: none;
}

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

/* Cor teal reutilizável */
.teal {
  color: var(--color-teal);
}

/* ====================================================
   LAYOUT — CONTAINER
   ==================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* ====================================================
   HEADER
   ==================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  /* Inicia transparente; .scrolled é adicionado via JS */
  background: transparent;
  transition: background var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}

/* Estado com scroll */
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* Logo / Brand */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo {
  height: 112px;
  width: auto;
}

/* Nav desktop */
.nav-desktop {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-white);
  letter-spacing: 0.01em;
  transition: color var(--transition-fast);
  position: relative;
  white-space: nowrap;
}

/* Underline animado */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.nav-link:hover::after,
.nav-link:focus-visible::after {
  transform: scaleX(1);
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-teal);
  outline: none;
}

/* Após scroll, links ficam escuros */
.site-header.scrolled .nav-link {
  color: var(--color-charcoal);
}

.site-header.scrolled .nav-link:hover {
  color: var(--color-teal);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.site-header.scrolled .hamburger:hover {
  background: var(--color-off-white);
}

.hamburger-line {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base), background var(--transition-fast);
  transform-origin: center;
}

.site-header.scrolled .hamburger-line {
  background: var(--color-charcoal);
}

/* Animação hamburger → X */
.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.open .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Nav mobile */
.nav-mobile {
  display: none;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--color-gray-light);
  padding: 16px 24px 24px;
  position: absolute;
  top: var(--header-h);
  left: 0;
  right: 0;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-mobile.open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.nav-mobile-link {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-charcoal);
  padding: 12px 0;
  border-bottom: 1px solid var(--color-gray-light);
  transition: color var(--transition-fast);
}

.nav-mobile-link:last-child {
  border-bottom: none;
}

.nav-mobile-link:hover {
  color: var(--color-teal);
}

/* ====================================================
   HERO
   ==================================================== */
.hero {
  position: relative;
  height: 100svh;
  min-height: 600px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-image-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}

/* Overlay gradiente escuro para legibilidade */
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(13, 13, 13, 0.45) 0%,
    rgba(13, 13, 13, 0.20) 40%,
    rgba(13, 13, 13, 0.70) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  padding-bottom: 72px;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 300;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.5;
  max-width: 560px;
  margin-bottom: 48px;
  letter-spacing: 0.01em;
}

/* Links de navegação sobrepostos na hero */
.hero-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
}

.hero-nav-item {
  font-size: clamp(0.875rem, 1.5vw, 1rem);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  letter-spacing: 0.02em;
  text-transform: lowercase;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.hero-nav-item:hover {
  color: var(--color-teal);
  border-color: var(--color-teal);
}

/* ====================================================
   SEÇÕES — BASE
   ==================================================== */
.section {
  padding-block: var(--section-py);
}

.section--light {
  background: var(--color-white);
}

.section--dark-alt {
  background: var(--color-off-white);
}

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

/* Cabeçalho de seção */
.section-header {
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 12px;
}

.section-tag--light {
  color: rgba(62, 207, 190, 0.85);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-charcoal);
  letter-spacing: -0.02em;
}

.section-title--light {
  color: var(--color-white);
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-gray-dark);
  margin-top: 16px;
  max-width: 600px;
  line-height: 1.6;
}

.section-lead--light {
  color: rgba(255, 255, 255, 0.75);
}

/* Texto de lead dentro das seções */
.lead {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-charcoal);
  line-height: 1.5;
  margin-bottom: 16px;
}

/* ====================================================
   FEATURE LIST (setas)
   ==================================================== */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 1rem;
  color: var(--color-gray-dark);
  line-height: 1.5;
}

.feature-icon {
  flex-shrink: 0;
  color: var(--color-teal);
  font-size: 1rem;
  margin-top: 2px;
  font-weight: 700;
}

/* ====================================================
   NOTÍCIAS — dois colunas
   ==================================================== */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.col-text p {
  color: var(--color-gray-dark);
  margin-bottom: 20px;
  font-size: 1rem;
}

.col-label {
  font-size: 0.875rem !important;
  font-weight: 600 !important;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-charcoal) !important;
  margin-top: 32px !important;
  margin-bottom: 0 !important;
}

/* ====================================================
   PUBLICIDADE — grid de cards
   ==================================================== */
.pub-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}

.pub-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 36px;
  border: 1px solid var(--color-gray-light);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.pub-card:hover {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  border-color: var(--color-teal);
}

.pub-card-title {
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-bottom: 24px;
}

/* ====================================================
   COMO FUNCIONA — passos numerados
   ==================================================== */
.steps-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  counter-reset: steps;
  margin-bottom: 56px;
}

.step-item {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--color-gray-light);
  position: relative;
}

.step-item:first-child {
  border-top: 1px solid var(--color-gray-light);
}

.step-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-teal);
  line-height: 1;
  flex-shrink: 0;
  width: 72px;
  letter-spacing: -0.03em;
  opacity: 0.9;
}

.step-text {
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-charcoal);
  line-height: 1.5;
  padding-top: 8px;
}

/* Billing e intro */
.como-extra {
  padding-top: 16px;
}

.como-billing {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-gray-mid);
  letter-spacing: 0.03em;
  margin-bottom: 32px;
  text-transform: uppercase;
}

.como-intro {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-charcoal);
  margin-bottom: 32px;
  line-height: 1.5;
}

/* Grid de público-alvo */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.audience-grid li {
  font-size: 0.9375rem;
  color: var(--color-gray-dark);
  padding: 14px 20px;
  background: var(--color-off-white);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--color-teal);
  line-height: 1.4;
}

/* ====================================================
   COMBO ESPERTO
   ==================================================== */
.combo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.combo-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.4;
  transition: background var(--transition-base), border-color var(--transition-base);
}

.combo-item:hover {
  background: rgba(62, 207, 190, 0.10);
  border-color: rgba(62, 207, 190, 0.35);
}

.combo-check {
  color: var(--color-teal);
  font-size: 1.1rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ====================================================
   DIFERENCIAIS — grid de cards
   ==================================================== */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.diff-card {
  background: var(--color-off-white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid var(--color-gray-light);
  transition: box-shadow var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
  cursor: default;
}

.diff-card:hover {
  box-shadow: 0 12px 40px rgba(62, 207, 190, 0.12);
  border-color: var(--color-teal);
  transform: translateY(-4px);
}

.diff-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  background: rgba(62, 207, 190, 0.10);
  border-radius: var(--radius-sm);
  color: var(--color-teal);
  margin-bottom: 20px;
}

.diff-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-charcoal);
  margin-bottom: 8px;
  line-height: 1.3;
}

.diff-desc {
  font-size: 0.875rem;
  color: var(--color-gray-mid);
  line-height: 1.6;
}

/* ====================================================
   FOOTER
   ==================================================== */
.site-footer {
  background: var(--color-black-hero);
  padding-block: 80px 48px;
}

.footer-cta {
  text-align: center;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 48px;
}

.footer-cta-title {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.footer-cta-sub {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 36px;
}

.footer-email-btn {
  display: inline-block;
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: 600;
  color: var(--color-teal);
  border: 1.5px solid var(--color-teal);
  border-radius: 100px;
  padding: 16px 40px;
  letter-spacing: 0.01em;
  transition: background var(--transition-base), color var(--transition-base);
}

.footer-email-btn:hover {
  background: var(--color-teal);
  color: var(--color-charcoal);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-logo {
  height: 32px;
  width: auto;
  /* Inverte as cores escuras para ficarem brancas no fundo preto */
  filter: brightness(0) invert(1);
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.footer-logo:hover {
  opacity: 1;
}

.footer-instagram {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer-instagram:hover {
  color: var(--color-teal);
}

.footer-copy {
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.3);
}

/* ====================================================
   ANIMAÇÕES — FADE UP (controladas pelo JS)
   ==================================================== */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Delay escalonado para elementos no mesmo contexto */
.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }

/* Para os cards de diferencial, aplica delay via JS se necessário */
.diff-card.fade-up:nth-child(1) { transition-delay: 0.05s; }
.diff-card.fade-up:nth-child(2) { transition-delay: 0.10s; }
.diff-card.fade-up:nth-child(3) { transition-delay: 0.15s; }
.diff-card.fade-up:nth-child(4) { transition-delay: 0.20s; }
.diff-card.fade-up:nth-child(5) { transition-delay: 0.25s; }
.diff-card.fade-up:nth-child(6) { transition-delay: 0.30s; }
.diff-card.fade-up:nth-child(7) { transition-delay: 0.35s; }
.diff-card.fade-up:nth-child(8) { transition-delay: 0.40s; }

/* ====================================================
   RESPONSIVIDADE
   ==================================================== */

/* ---- Tablet (≤ 1024px) ---- */
@media (max-width: 1024px) {
  :root {
    --section-py: 72px;
  }

  .diff-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .combo-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .audience-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---- Tablet pequeno / Mobile (≤ 768px) ---- */
@media (max-width: 768px) {
  :root {
    --section-py: 56px;
    --header-h: 64px;
  }

  /* Header */
  .nav-desktop {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .nav-mobile {
    display: flex;
  }

  /* Hero */
  .hero-content {
    padding-bottom: 52px;
  }

  .hero-subtitle {
    margin-bottom: 32px;
  }

  .hero-nav-links {
    flex-direction: column;
    gap: 8px;
  }

  .hero-nav-item {
    font-size: 0.9rem;
  }

  /* Notícias */
  .two-col {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  /* Publicidade */
  .pub-grid {
    grid-template-columns: 1fr;
  }

  /* Como funciona */
  .step-number {
    font-size: 1.8rem;
    width: 52px;
  }

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

  /* Combo */
  .combo-grid {
    grid-template-columns: 1fr;
  }

  /* Diferenciais */
  .diff-grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
}

/* ---- Mobile pequeno (≤ 480px) ---- */
@media (max-width: 480px) {
  .footer-email-btn {
    font-size: 0.9rem;
    padding: 14px 28px;
  }
}

/* ====================================================
   ACESSIBILIDADE — foco visível
   ==================================================== */
:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
  border-radius: 3px;
}

/* Reduz animações para usuários que preferem */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }
}