/* ============================================================================
   ViaProc — LANDING PAGE • styles.css
   ----------------------------------------------------------------------------
   ► CONFIGURAÇÃO DE CORES E ESTILO
     Todas as variáveis editáveis estão no bloco :root abaixo.
     Mude aqui para alterar a identidade visual de toda a página.

   PALETA "Fluxo Petrol" — corporativa, tech e memorável (sem roxo genérico):
     - Ink   #0C1B2A  → fundo escuro / texto principal
     - Teal  #12B5A0  → cor de marca (fluxo / água)
     - Ocean #0E8FB8  → companheira do gradiente (azul oceano)
     - Coral #FF7A59  → acento quente para destaques
   ============================================================================ */

:root {
  /* —— CORES DA MARCA —— */
  --c-ink:        #0C1B2A;   /* azul petróleo profundo (fundos escuros / títulos) */
  --c-ink-soft:   #14283B;   /* variação do ink para superfícies escuras */
  --c-teal:       #12B5A0;   /* cor principal da marca */
  --c-ocean:      #0E8FB8;   /* azul oceano (par do gradiente) */
  --c-coral:      #FF7A59;   /* acento quente */
  --c-wa:         #25D366;   /* verde oficial do WhatsApp */
  --c-wa-dark:    #1da851;

  /* —— NEUTROS —— */
  --c-bg:         #FFFFFF;   /* fundo padrão */
  --c-bg-alt:     #F3F7F9;   /* fundo de seções alternadas */
  --c-text:       #1B2A38;   /* texto corpo */
  --c-text-soft:  #5A6B79;   /* texto secundário */
  --c-border:     #E3EBEF;   /* bordas suaves */
  --c-white:      #FFFFFF;

  /* —— GRADIENTE DE MARCA —— */
  --grad-brand: linear-gradient(135deg, #12B5A0 0%, #0E8FB8 100%);

  /* —— TIPOGRAFIA —— */
  --font-head: "Space Grotesk", system-ui, sans-serif;   /* títulos */
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif; /* texto */

  /* —— FORMA E SOMBRAS —— */
  --radius:     16px;
  --radius-sm:  10px;
  --shadow-sm:  0 2px 8px rgba(12, 27, 42, .06);
  --shadow-md:  0 10px 30px rgba(12, 27, 42, .10);
  --shadow-lg:  0 24px 60px rgba(12, 27, 42, .16);

  /* —— LAYOUT —— */
  --maxw:        1180px;
  --maxw-narrow: 760px;
  --gutter:      24px;
}

/* ----------------------------------------------------------------------------
   RESET / BASE
   ---------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; color: var(--c-ink); margin: 0 0 .4em; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); letter-spacing: -.02em; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); letter-spacing: -.01em; }
h3 { font-size: 1.2rem; }
p  { margin: 0 0 1rem; }
a  { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

/* ----------------------------------------------------------------------------
   LAYOUT UTILITÁRIOS
   ---------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.container-narrow { max-width: var(--maxw-narrow); }

.section { padding: clamp(64px, 9vw, 110px) 0; }
.section-alt  { background: var(--c-bg-alt); }
.section-dark { background: var(--c-ink); }
.section-dark h2, .section-dark h3 { color: #fff; }

.section-head { max-width: 680px; margin: 0 auto clamp(36px, 6vw, 60px); text-align: center; }
.section-lead { color: var(--c-text-soft); font-size: 1.08rem; }
.section-dark .section-lead { color: #aab8c4; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-teal);
  margin-bottom: .6rem;
}
.eyebrow-light { color: #4fd6c4; }

.grad-text {
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ----------------------------------------------------------------------------
   BOTÕES
   ---------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  padding: .8em 1.5em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, opacity .18s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(.99); }

.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: 0 8px 20px rgba(18, 181, 160, .28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(18, 181, 160, .38); }

.btn-ghost { background: transparent; color: var(--c-ink); border-color: var(--c-border); }
.btn-ghost:hover { border-color: var(--c-teal); color: var(--c-teal); transform: translateY(-2px); }

.btn-light { background: #fff; color: var(--c-ink); box-shadow: var(--shadow-md); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

.btn-sm    { padding: .6em 1.2em; font-size: .92rem; }
.btn-icon { padding: .55em; border-radius: 50%; aspect-ratio: 1; }
.btn-lg    { padding: .95em 1.9em; font-size: 1.08rem; }
.btn-block { width: 100%; margin-top: auto; }

.ico-wa { flex-shrink: 0; }

/* ----------------------------------------------------------------------------
   HEADER
   ---------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.site-header.scrolled { border-bottom-color: var(--c-border); box-shadow: var(--shadow-sm); }

.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }

.logo { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-head); font-weight: 700; }

.logo-mark { display: block; flex-shrink: 0; }

.logo-text { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; font-size: 1.35rem; color: var(--c-ink); letter-spacing: -.01em; font-weight: 800; }

.main-nav { display: flex; gap: 28px; }
.main-nav a { font-weight: 500; color: var(--c-text-soft); position: relative; transition: color .2s; }
.main-nav a:hover { color: var(--c-ink); }
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; height: 2px; width: 0;
  background: var(--grad-brand); transition: width .25s ease;
}
.main-nav a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: 8px; }


/* Botão hamburguer (mobile) */
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--c-ink); border-radius: 2px; transition: .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Menu mobile */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 12px var(--gutter) 22px;
  background: #fff;
  border-bottom: 1px solid var(--c-border);
}
.mobile-nav a { padding: 12px 4px; font-weight: 500; color: var(--c-text); border-bottom: 1px solid var(--c-border); }
.mobile-nav a:last-child { border: 0; margin-top: 10px; }
.mobile-nav.open { display: flex; }

/* ----------------------------------------------------------------------------
   HERO
   ---------------------------------------------------------------------------- */
.hero { position: relative; padding: clamp(54px, 8vw, 96px) 0 clamp(64px, 9vw, 104px); overflow: hidden; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 70% at 85% 0%, rgba(18, 181, 160, .14), transparent 60%),
    radial-gradient(55% 60% at 0% 100%, rgba(14, 143, 184, .12), transparent 60%),
    var(--c-bg);
}
.hero-inner { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }

.badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .82rem; font-weight: 600; font-family: var(--font-head);
  color: var(--c-ink);
  background: #fff; border: 1px solid var(--c-border);
  padding: 7px 14px; border-radius: 999px; box-shadow: var(--shadow-sm);
  margin-bottom: 22px;
}
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-teal); box-shadow: 0 0 0 4px rgba(18,181,160,.18); }

.hero-sub { font-size: 1.18rem; color: var(--c-text-soft); max-width: 540px; margin-bottom: 28px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 38px; }

.hero-trust { display: flex; gap: 32px; flex-wrap: wrap; }
.hero-trust li { display: flex; flex-direction: column; }
.hero-trust strong { font-family: var(--font-head); font-size: 1.7rem; color: var(--c-ink); }
.hero-trust span { font-size: .88rem; color: var(--c-text-soft); }

/* Mockup de chat */
.hero-visual { display: flex; justify-content: center; }
.chat-mock {
  width: 100%; max-width: 360px;
  background: #fff; border-radius: 24px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--c-border);
  animation: float 6s ease-in-out infinite;
}
.chat-head { display: flex; align-items: center; gap: 12px; padding: 16px; background: var(--c-ink); color: #fff; }
.chat-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--grad-brand); display: grid; place-items: center; font-family: var(--font-head); font-weight: 700; }
.chat-head strong { display: block; font-size: .98rem; }
.chat-status { font-size: .76rem; color: #4fd6c4; }
.chat-body { padding: 18px; background: #ECF3F4; display: flex; flex-direction: column; gap: 10px; min-height: 280px; }
.bubble { max-width: 80%; padding: 10px 14px; border-radius: 16px; font-size: .92rem; box-shadow: var(--shadow-sm); }
.bubble.in  { background: #fff; border-bottom-left-radius: 4px; align-self: flex-start; }
.bubble.out { background: #D6F6E5; border-bottom-right-radius: 4px; align-self: flex-end; }
.bubble.typing { display: inline-flex; gap: 4px; align-self: flex-start; }
.bubble.typing span { width: 7px; height: 7px; border-radius: 50%; background: #9bb0bd; animation: blink 1.4s infinite; }
.bubble.typing span:nth-child(2) { animation-delay: .2s; }
.bubble.typing span:nth-child(3) { animation-delay: .4s; }

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes blink { 0%, 60%, 100% { opacity: .3; } 30% { opacity: 1; } }

/* ----------------------------------------------------------------------------
   FAIXA DE TECNOLOGIAS
   ---------------------------------------------------------------------------- */
.strip { border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); background: var(--c-bg-alt); }
.strip-inner { padding: 28px 0; text-align: center; }
.strip-label { display: block; font-size: .82rem; letter-spacing: .05em; text-transform: uppercase; color: var(--c-text-soft); margin-bottom: 16px; }
.strip-logos { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 40px; }
.strip-logos li { font-family: var(--font-head); font-weight: 600; font-size: 1.15rem; color: #8295a3; transition: color .2s; cursor: pointer; }
.strip-logos li:hover { color: var(--c-ink); }

/* ----------------------------------------------------------------------------
   CARDS GENÉRICOS
   ---------------------------------------------------------------------------- */
.card {
  background: #fff;
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: transparent; }

.card-icon {
  width: 54px; height: 54px; border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(18, 181, 160, .1); color: var(--c-teal);
  margin-bottom: 16px;
}
.service-card p { color: var(--c-text-soft); margin: 0; }

/* ----------------------------------------------------------------------------
   COMO FUNCIONA — passos
   ---------------------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding: 28px 22px; background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius); }
.step-num {
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 12px;
  font-family: var(--font-head); font-weight: 700; color: #fff;
  background: var(--grad-brand);
  margin-bottom: 14px;
}
.step p { color: var(--c-text-soft); margin: 0; }

/* ----------------------------------------------------------------------------
   CENÁRIOS — cards de demonstração (seção principal)
   ---------------------------------------------------------------------------- */
.scenario-card { position: relative; overflow: hidden; }
.scenario-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 5px; background: var(--grad-brand);
  opacity: .9;
}
.scenario-art {
  width: 64px; height: 64px; border-radius: 18px;
  display: grid; place-items: center;
  color: #fff; margin-bottom: 18px;
  background: var(--grad-brand);
  box-shadow: 0 8px 18px rgba(18,181,160,.28);
}
/* Variação de cor por tema do cenário */
.scenario-card[data-theme="restaurante"] .scenario-art { background: linear-gradient(135deg, #FF7A59, #F25C45); box-shadow: 0 8px 18px rgba(242,92,69,.28); }
.scenario-card[data-theme="barbearia"]   .scenario-art { background: linear-gradient(135deg, #2E3A59, #16203A); box-shadow: 0 8px 18px rgba(22,32,58,.30); }
.scenario-card[data-theme="hotelaria"]   .scenario-art { background: var(--grad-brand); }

.scenario-card h3 { font-size: 1.35rem; }
.scenario-card p { color: var(--c-text-soft); }
.scenario-tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 22px; }
.scenario-tags li {
  font-size: .78rem; font-weight: 600; color: var(--c-text-soft);
  background: var(--c-bg-alt); border: 1px solid var(--c-border);
  padding: 4px 11px; border-radius: 999px;
}

/* ----------------------------------------------------------------------------
   CENÁRIOS — destaque central da página
   Fundo com leve brilho de marca para esta ser a secção que mais sobressai.
   ---------------------------------------------------------------------------- */
.section-feature {
  position: relative;
  background:
    radial-gradient(70% 80% at 50% -10%, rgba(18, 181, 160, .10), transparent 60%),
    var(--c-bg);
}

/* ----------------------------------------------------------------------------
   VANTAGENS — 4 pilares de benefício (seção escura)
   ---------------------------------------------------------------------------- */
.pillar {
  padding: 30px 26px;
  border-radius: var(--radius);
  background: var(--c-ink-soft);
  border: 1px solid rgba(255, 255, 255, .07);
  transition: transform .25s ease, border-color .25s ease;
}
.pillar:hover { transform: translateY(-6px); border-color: rgba(18, 181, 160, .5); }
.pillar-icon {
  display: grid; place-items: center;
  width: 56px; height: 56px; border-radius: 16px;
  font-size: 1.7rem; line-height: 1;
  background: rgba(18, 181, 160, .14);
  margin-bottom: 16px;
}
.pillar h3 { color: #fff; }
.pillar p { color: #aab8c4; margin: 0; }

/* ----------------------------------------------------------------------------
   FAQ
   ---------------------------------------------------------------------------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 4px 20px; }
.faq-item summary {
  cursor: pointer; list-style: none;
  font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; color: var(--c-ink);
  padding: 16px 0; position: relative; padding-right: 32px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%);
  font-size: 1.4rem; color: var(--c-teal); transition: transform .25s;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item p { color: var(--c-text-soft); margin: 0 0 16px; }

/* ----------------------------------------------------------------------------
   CTA FINAL
   ---------------------------------------------------------------------------- */
.cta-final { background: var(--c-bg-alt); }
.cta-box {
  text-align: center;
  background: var(--c-ink);
  color: #fff;
  border-radius: 28px;
  padding: clamp(40px, 6vw, 72px);
  position: relative; overflow: hidden;
}
.cta-box::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(60% 120% at 80% 0%, rgba(18,181,160,.25), transparent 55%);
}
.cta-box h2 { color: #fff; position: relative; }
.cta-box p { color: #b6c3cd; max-width: 480px; margin: 0 auto 28px; position: relative; }
.cta-box .btn { position: relative; }

/* ----------------------------------------------------------------------------
   FOOTER
   ---------------------------------------------------------------------------- */
.site-footer { background: var(--c-ink); color: #aab8c4; padding: 64px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 36px; }
.footer-brand p { margin-top: 14px; max-width: 280px; }
.footer-brand .logo-text { color: #fff; }
.footer-col h4 { color: #fff; font-size: 1rem; margin-bottom: 14px; }
.footer-col a { display: block; padding: 6px 0; color: #aab8c4; transition: color .2s; }
.footer-col a:hover { color: var(--c-teal); }
.footer-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  margin-top: 44px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1);
  font-size: .88rem;
}
.footer-bottom p { margin: 0; }

/* ----------------------------------------------------------------------------
   BOTÃO WHATSAPP FLUTUANTE
   ---------------------------------------------------------------------------- */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 62px; height: 62px; border-radius: 50%;
  background: var(--c-wa);
  display: grid; place-items: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, .45);
  transition: transform .2s ease, box-shadow .2s ease;
}
.wa-float:hover { transform: scale(1.08); box-shadow: 0 14px 32px rgba(37, 211, 102, .55); }
.wa-float svg { position: relative; z-index: 2; }

/* Pulso suave */
.wa-pulse {
  position: absolute; inset: 0; border-radius: 50%;
  background: var(--c-wa); z-index: 1;
  animation: pulse 2.2s ease-out infinite;
}
@keyframes pulse {
  0%   { transform: scale(1);   opacity: .6; }
  70%  { transform: scale(1.8); opacity: 0; }
  100% { transform: scale(1.8); opacity: 0; }
}

/* Tooltip */
.wa-tooltip {
  position: absolute; right: 74px; top: 50%; transform: translateY(-50%) translateX(8px);
  background: var(--c-ink); color: #fff;
  font-size: .85rem; font-weight: 600; white-space: nowrap;
  padding: 8px 13px; border-radius: 8px;
  opacity: 0; pointer-events: none;
  transition: opacity .2s ease, transform .2s ease;
  box-shadow: var(--shadow-md);
}
.wa-tooltip::after {
  content: ""; position: absolute; right: -5px; top: 50%; transform: translateY(-50%);
  border-left: 6px solid var(--c-ink); border-top: 5px solid transparent; border-bottom: 5px solid transparent;
}
.wa-float:hover .wa-tooltip { opacity: 1; transform: translateY(-50%) translateX(0); }

/* ----------------------------------------------------------------------------
   ANIMAÇÃO DE REVEAL NO SCROLL
   ---------------------------------------------------------------------------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }
/* Pequeno escalonamento entre itens de uma mesma grade */
.grid .reveal:nth-child(2) { transition-delay: .08s; }
.grid .reveal:nth-child(3) { transition-delay: .16s; }
.grid .reveal:nth-child(4) { transition-delay: .24s; }

/* ============================================================================
   THEME TOGGLE (sun · switch · moon) – checkbox-driven
   ============================================================================ */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
}

/* Esconde o checkbox nativo mas mantém acessível */
.theme-toggle-input {
  position: absolute;
  width: 1px;
  height: 1px;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}
.theme-toggle-input:focus-visible + .theme-toggle-sun {
  outline: 2px solid var(--c-teal);
  outline-offset: 2px;
  border-radius: 6px;
}

/* ---- Ícones (sol / lua) ---- */
.theme-toggle-icon {
  display: block;
  flex-shrink: 0;
  color: var(--c-text-soft);
  transition: color .25s ease;
}
/* Sol: destaque no light mode (checkbox unchecked) */
.theme-toggle-input:not(:checked) ~ .theme-toggle-sun {
  color: var(--c-teal);
}
/* Lua: destaque no dark mode (checkbox checked) */
.theme-toggle-input:checked ~ .theme-toggle-moon {
  color: var(--c-teal);
}

/* ---- Track (fundo do switch) ---- */
.theme-toggle-track {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 44px;
  height: 26px;
  padding: 2px;
  border-radius: 999px;
  background: var(--c-border);
  transition: background .3s ease;
  flex-shrink: 0;
}
.theme-toggle:hover .theme-toggle-track {
  background: #c8d5db;
}
.theme-toggle-input:checked ~ .theme-toggle-track {
  background: var(--c-teal);
}
.theme-toggle:hover .theme-toggle-input:checked ~ .theme-toggle-track {
  background: #0fa090;
}

/* ---- Thumb (bolinha que desliza) ---- */
.theme-toggle-thumb {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0,0,0,.15);
  transition: transform .3s cubic-bezier(.4,0,.2,1);
  transform: translateX(0);
}
.theme-toggle-input:checked ~ .theme-toggle-track .theme-toggle-thumb {
  transform: translateX(18px);
}

/* ============================================================================
   ANTI-FLASH DE IDIOMA
   body fica invisível até o i18n aplicar as traduções (evita flash pt-PT → outro)
   ============================================================================ */
html.lang-pending body { visibility: hidden; }

/* ============================================================================
   LANG SWITCH (seletor de idioma com bandeiras)
   ============================================================================ */
.lang-switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.lang-switch-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 8px;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  background: var(--c-bg);
  cursor: pointer;
  color: var(--c-text-soft);
  font-family: var(--font-head);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .02em;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
  -webkit-user-select: none;
  user-select: none;
}
.lang-switch-btn:hover {
  border-color: var(--c-teal);
  color: var(--c-ink);
}
.lang-switch-btn:focus-visible {
  outline: 2px solid var(--c-teal);
  outline-offset: 2px;
}

.lang-flag {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  line-height: 0;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 0 0 1px rgba(0,0,0,.08);
}
.lang-flag svg { display: block; }

.lang-code { line-height: 1; }

.lang-caret {
  flex-shrink: 0;
  transition: transform .2s ease;
  margin-left: 1px;
}
.lang-switch.open .lang-caret { transform: rotate(180deg); }

/* —— Dropdown —— */
.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 120;
  display: none;
  min-width: 180px;
  padding: 6px;
  margin: 0;
  list-style: none;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
}
.lang-switch.open .lang-dropdown { display: block; }

.lang-dropdown li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 500;
  color: var(--c-text);
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.lang-dropdown li:hover { background: var(--c-bg-alt); }
.lang-dropdown li:focus-visible {
  outline: 2px solid var(--c-teal);
  outline-offset: -2px;
}
.lang-dropdown li.is-active {
  color: var(--c-teal);
  font-weight: 600;
  background: rgba(18, 181, 160, .08);
}
.lang-dropdown li.is-active::after {
  content: "✓";
  margin-left: auto;
  font-weight: 700;
}

/* —— Dark mode —— */
[data-theme="dark"] .lang-switch-btn {
  background: var(--c-ink-soft);
  border-color: var(--c-border);
  color: var(--c-text-soft);
}
[data-theme="dark"] .lang-switch-btn:hover {
  border-color: var(--c-teal);
  color: #fff;
}
[data-theme="dark"] .lang-dropdown {
  background: var(--c-ink-soft);
  border-color: var(--c-border);
}
[data-theme="dark"] .lang-dropdown li:hover { background: rgba(255,255,255,.06); }
[data-theme="dark"] .lang-dropdown li.is-active { background: rgba(18, 181, 160, .15); }
[data-theme="dark"] .lang-flag { box-shadow: 0 0 0 1px rgba(255,255,255,.12); }

/* ============================================================================

/* —— Variáveis de cor invertidas —— */
[data-theme="dark"] {
  --c-bg:       #0C1B2A;
  --c-bg-alt:   #101F2E;
  --c-text:     #E8EDF2;
  --c-text-soft:#94A3B2;
  --c-border:   #1E3347;
  --c-ink-soft: #162535;
  --shadow-sm:  0 2px 8px rgba(0,0,0,.25);
  --shadow-md:  0 10px 30px rgba(0,0,0,.35);
  --shadow-lg:  0 24px 60px rgba(0,0,0,.45);
}

[data-theme="dark"] .theme-toggle-icon {
  color: #5A6B79;
}
[data-theme="dark"] .theme-toggle-input:not(:checked) ~ .theme-toggle-sun {
  color: #4fd6c4;
}
[data-theme="dark"] .theme-toggle-input:checked ~ .theme-toggle-moon {
  color: #4fd6c4;
}
[data-theme="dark"] .theme-toggle-track {
  background: #1E3347;
}
[data-theme="dark"] .theme-toggle-input:checked ~ .theme-toggle-track {
  background: var(--c-teal);
}

/* —— Componentes que precisam de ajustes extra no tema escuro —— */

[data-theme="dark"] body { background: var(--c-bg); }

[data-theme="dark"] .site-header {
  background: rgba(12, 27, 42, .88);
  border-bottom-color: var(--c-border);
}
[data-theme="dark"] .site-header.scrolled { border-bottom-color: var(--c-border); }

[data-theme="dark"] .logo-text { color: #fff; }

[data-theme="dark"] .main-nav a { color: var(--c-text-soft); }
[data-theme="dark"] .main-nav a:hover { color: #fff; }

/* Hero */
[data-theme="dark"] .hero-bg {
  background:
    radial-gradient(60% 70% at 85% 0%, rgba(18, 181, 160, .08), transparent 60%),
    radial-gradient(55% 60% at 0% 100%, rgba(14, 143, 184, .06), transparent 60%),
    var(--c-bg);
}
[data-theme="dark"] .badge { background: var(--c-ink-soft); color: #e0e6ed; border-color: var(--c-border); }
[data-theme="dark"] .hero-trust strong { color: #fff; }

/* Faixa de segmentos */
[data-theme="dark"] .strip { background: var(--c-bg-alt); border-color: var(--c-border); }
[data-theme="dark"] .strip-logos li:hover { color: #12B5A0; }

/* Cards */
[data-theme="dark"] .card { background: var(--c-ink-soft); border-color: var(--c-border); }
[data-theme="dark"] .card:hover { border-color: rgba(18,181,160,.3); }
[data-theme="dark"] .card-icon { background: rgba(18, 181, 160, .16); }
[data-theme="dark"] .section-alt { background: var(--c-bg-alt); }

/* Botão ghost */
[data-theme="dark"] .btn-ghost { color: #c8d6e0; border-color: var(--c-border); }
[data-theme="dark"] .btn-ghost:hover { color: #12B5A0; border-color: #12B5A0; }

/* Chat mock */
[data-theme="dark"] .chat-mock { background: #1a2d3d; border-color: var(--c-border); }
[data-theme="dark"] .chat-body { background: #122231; }
[data-theme="dark"] .bubble.in { background: #1e3347; color: #e0e6ed; }
[data-theme="dark"] .bubble.out { background: #1a4d3a; color: #d4f5e4; }

/* Títulos */
[data-theme="dark"] h1, [data-theme="dark"] h2, [data-theme="dark"] h3, [data-theme="dark"] h4 { color: #fff; }

/* Steps */
[data-theme="dark"] .step { background: var(--c-ink-soft); border-color: var(--c-border); }

/* FAQ */
[data-theme="dark"] .faq-item { background: var(--c-ink-soft); border-color: var(--c-border); }
[data-theme="dark"] .faq-item summary { color: #fff; }

/* Cenários — section-feature */
[data-theme="dark"] .section-feature {
  background:
    radial-gradient(70% 80% at 50% -10%, rgba(18, 181, 160, .06), transparent 60%),
    var(--c-bg);
}

/* CTA final */
[data-theme="dark"] .cta-final { background: var(--c-bg-alt); }

/* Menu mobile */
[data-theme="dark"] .mobile-nav { background: var(--c-ink-soft); border-color: var(--c-border); }
[data-theme="dark"] .mobile-nav a { border-color: var(--c-border); color: var(--c-text); }

/* Nav toggle (hamburguer) */
[data-theme="dark"] .nav-toggle span { background: #fff; }

/* ============================================================================
   RESPONSIVO (mobile-first ajustes)
   ---------------------------------------------------------------------------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps  { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .header-actions .btn { display: none; }
  .nav-toggle { display: flex; }
  .grid-3, .grid-4, .steps { grid-template-columns: 1fr; }
  .hero-trust { gap: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 420px) {
  .footer-grid { grid-template-columns: 1fr; }
  .hero-cta .btn { width: 100%; }
}

/* Respeita usuários que preferem menos movimento (acessibilidade) */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}