/* ============================================================
   Skip link
   ============================================================ */
.skip-link{
  position: fixed; top: -60px; left: 16px; z-index: 999;
  background: var(--surface); color: var(--text);
  padding: 10px 18px; border-radius: var(--r-sm);
  border: 1px solid var(--border-strong);
  transition: top .2s;
}
.skip-link:focus{ top: 16px; }

/* ============================================================
   Header / Navegação
   ============================================================ */
.site-header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding-block: 18px;
  transition: padding var(--t-med) var(--ease-soft), background var(--t-med) var(--ease-soft), border-color var(--t-med) var(--ease-soft), backdrop-filter var(--t-med) var(--ease-soft);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled{
  padding-block: 12px;
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.site-header__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand{ display: inline-flex; align-items: center; gap: 10px; }
.brand__logo{ height: 30px; width: auto; display: block; }

.main-nav{ display: flex; align-items: center; gap: 26px; }
.main-nav a{
  font-size: 14px; font-weight: 500; color: var(--text-muted);
  position: relative;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease-soft);
}
.main-nav a::after{
  content:''; position: absolute; left:0; right:0; bottom: -6px; height: 1px;
  background: var(--gradient-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t-fast) var(--ease-soft);
}
.main-nav a:hover{ color: var(--text); }
.main-nav a:hover::after{ transform: scaleX(1); }

.site-header__actions{ display: flex; align-items: center; gap: 12px; }

.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px; height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border-strong);
  background: var(--surface);
}
.nav-toggle span{ width: 18px; height: 1.5px; background: var(--text); margin-inline: auto; transition: transform var(--t-fast), opacity var(--t-fast); }
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav{
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: 0;
  overflow: hidden;
  padding-inline: var(--container-pad);
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: max-height var(--t-med) var(--ease-soft), padding var(--t-med) var(--ease-soft);
}
.mobile-nav.is-open{ max-height: 420px; padding-block: 12px 20px; border-bottom-color: var(--border); }
.mobile-nav a{
  padding: 12px 4px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

@media (max-width: 920px){
  .main-nav{ display: none; }
  .hide-mobile{ display: none; }
  .nav-toggle{ display: flex; }
}
@media (min-width: 921px){
  .mobile-nav{ display: none; }
}

/* ============================================================
   Botão flutuante mobile
   ============================================================ */
.fab-cta{
  position: fixed;
  bottom: 18px; left: 50%;
  transform: translateX(-50%);
  display: none;
  align-items: center; gap: 8px;
  padding: 13px 22px;
  border-radius: var(--r-full);
  background: var(--gradient-brand);
  color: #fff; font-size: 14px; font-weight: 600;
  box-shadow: var(--shadow-lg);
  z-index: 90;
}
@media (max-width: 640px){ .fab-cta{ display: inline-flex; } }

/* ============================================================
   Botão flutuante WhatsApp
   ============================================================ */
.whatsapp-fab{
  position: fixed;
  right: 20px; bottom: 20px;
  z-index: 95;
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.whatsapp-fab__bubble{
  background: rgba(15,23,42,.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #fff;
  font-size: 13.5px; font-weight: 600;
  padding: 10px 16px;
  border-radius: var(--r-full);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
}
.whatsapp-fab__icon{
  width: 54px; height: 54px;
  border-radius: 50%;
  background: #25d366;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  flex-shrink: 0;
  box-shadow: var(--shadow-lg), 0 0 0 0 rgba(37,211,102,.35);
  transition: transform var(--t-fast) var(--ease-soft);
  animation: whatsappPulse 2.6s ease-in-out infinite;
}
.whatsapp-fab:hover .whatsapp-fab__icon{ transform: scale(1.06); }
@keyframes whatsappPulse{
  0%, 100%{ box-shadow: var(--shadow-lg), 0 0 0 0 rgba(37,211,102,.35); }
  50%{ box-shadow: var(--shadow-lg), 0 0 0 8px rgba(37,211,102,0); }
}
@media (max-width: 640px){ .whatsapp-fab{ bottom: 88px; } }
@media (max-width: 480px){
  .whatsapp-fab__bubble{ display: none; }
  .whatsapp-fab{ right: 16px; }
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer{
  padding-block: 72px 32px;
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}
.site-footer__top{
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.site-footer__brand{ max-width: 320px; }
.site-footer__tag{ margin-top: 16px; font-size: 14.5px; color: var(--text-muted); }
.site-footer__by{ margin-top: 12px; font-size: 13px; color: var(--text-faint); }
.site-footer__col{ display: flex; flex-direction: column; gap: 12px; }
.site-footer__col h4{ font-size: 13px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; font-weight: 600; }
.site-footer__col a{ font-size: 14.5px; color: var(--text-muted); transition: color var(--t-fast); }
.site-footer__col a:hover{ color: var(--text); }
.site-footer__bottom{
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px; font-size: 13px; color: var(--text-faint); flex-wrap: wrap; gap: 12px;
}
.site-footer__legal{ display: flex; gap: 20px; }
.site-footer__legal a{ color: var(--text-faint); }
.site-footer__legal a:hover{ color: var(--text-muted); }

@media (max-width: 820px){
  .site-footer__top{ grid-template-columns: 1fr 1fr; row-gap: 36px; }
  .site-footer__brand{ grid-column: 1 / -1; max-width: none; }
}

/* ============================================================
   Chip / Tag
   ============================================================ */
.chip{
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  border-radius: var(--r-full);
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 13px; font-weight: 500;
  color: var(--text-muted);
}

/* ============================================================
   Mockup "navegador" para representar a plataforma sem fotos
   ============================================================ */
.mockup{
  /* Mockups de produto mantêm a estética "dark UI" mesmo com o site em
     tema claro — reforça a sensação de captura de tela real do app.
     As variáveis abaixo sobrescrevem localmente o tema claro para tudo
     que estiver dentro do mockup (kanban, chat, sidebar do painel etc). */
  --text: #f3f4f8;
  --text-muted: #a7abc0;
  --text-faint: #6c7086;
  --border: rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.16);
  --surface-2: #232838;
  --bg-elevated: #171a25;

  border-radius: var(--r-lg);
  border: 1px solid rgba(255,255,255,.16);
  background: linear-gradient(180deg, #1a1d2b, #12141f);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255,255,255,.02);
  overflow: hidden;
}
.mockup__bar{
  display: flex; align-items: center; gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-strong);
  background: rgba(255,255,255,.035);
}
.mockup__dot{ width: 9px; height: 9px; border-radius: 50%; background: var(--border-strong); }
.mockup__title{ margin-left: 10px; font-size: 12px; color: var(--text-faint); }
.mockup__body{ padding: 22px; }