/* ============================================
   Global Tecnologia — Novo Site
   Paleta baseada na logo: #003366 → #2E8BC0 → #4DA8DA
   ============================================ */

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --azul-escuro: #003366;
  --azul-medio: #2E8BC0;
  --azul-claro: #4DA8DA;
  --branco: #FFFFFF;
  --cinza-fundo: #F5F7FA;
  --cinza-texto: #4A4A4A;
  --cinza-leve: #E8ECF0;
  --sombra-card: 0 2px 12px rgba(0, 51, 102, 0.07);
  --sombra-hover: 0 6px 24px rgba(0, 51, 102, 0.13);
  --transicao: 0.25s ease;
  --max-width: 1200px;
  --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--cinza-texto);
  line-height: 1.6;
  background: var(--branco);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== HEADER ========== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--cinza-leve);
  transition: box-shadow var(--transicao);
}
.header.scrolled { box-shadow: 0 2px 16px rgba(0, 51, 102, 0.08); }

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

.logo-link { text-decoration: none; }
.logo { height: 42px; width: auto; }

/* ========== NAV ========== */
.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--azul-escuro); border-radius: 2px;
  transition: var(--transicao);
}

.nav-list {
  display: flex; align-items: center; gap: 32px;
  list-style: none;
}

.nav-list a {
  text-decoration: none; color: var(--azul-escuro);
  font-weight: 500; font-size: 15px;
  transition: color var(--transicao);
}
.nav-list a:hover { color: var(--azul-medio); }

.btn-nav {
  background: var(--azul-escuro);
  color: var(--branco) !important;
  padding: 10px 24px; border-radius: 8px;
  transition: background var(--transicao);
}
.btn-nav:hover { background: var(--azul-medio); }

/* ========== HERO ========== */
.hero {
  padding: 160px 0 100px;
  background: linear-gradient(175deg, var(--azul-escuro) 0%, #004A8F 50%, var(--azul-medio) 100%);
  color: var(--branco); text-align: center;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700; line-height: 1.15;
  margin-bottom: 20px; letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  max-width: 680px; margin: 0 auto 32px;
  opacity: 0.9; line-height: 1.7;
}

.hero-tags { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.hero-tags span {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.25);
  padding: 8px 20px; border-radius: 50px;
  font-size: 14px; font-weight: 500;
  backdrop-filter: blur(4px);
}

/* ========== NÚMEROS ========== */
.numbers { background: var(--branco); padding: 60px 0; border-bottom: 1px solid var(--cinza-leve); }

.numbers-grid { display: flex; justify-content: center; gap: 80px; flex-wrap: wrap; }
.number-card { text-align: center; }

.number-value {
  display: block; font-size: 2.8rem;
  font-weight: 700; color: var(--azul-escuro); line-height: 1;
  margin-bottom: 8px;
}

.number-label { font-size: 15px; color: var(--cinza-texto); font-weight: 500; }

/* ========== SEÇÕES ========== */
.section-title {
  text-align: center;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700; color: var(--azul-escuro);
  margin-bottom: 48px; position: relative;
}
.section-title::after {
  content: ''; display: block;
  width: 56px; height: 3px;
  background: linear-gradient(90deg, var(--azul-medio), var(--azul-claro));
  margin: 14px auto 0; border-radius: 2px;
}

.services { padding: 80px 0; background: var(--cinza-fundo); }
.markets { padding: 80px 0; background: var(--branco); }
.technologies { padding: 80px 0; background: var(--cinza-fundo); }

/* ========== CARDS ========== */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }

.card {
  background: var(--branco);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--sombra-card);
  border: 1px solid var(--cinza-leve);
  transition: transform var(--transicao), box-shadow var(--transicao);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--sombra-hover); }

.service-card h3, .tech-card h3, .pillar h3 {
  font-size: 1.15rem; font-weight: 600;
  color: var(--azul-escuro); margin-bottom: 12px;
}

.card p { font-size: 14px; line-height: 1.7; color: var(--cinza-texto); }

/* ========== ÍCONES ========== */
.card-icon { font-size: 2rem; margin-bottom: 16px; display: block; }
.card-icon svg { width: 48px; height: 48px; display: block; }

/* ========== MERCADO TAG ========== */
.market-tag {
  display: inline-block;
  background: linear-gradient(90deg, var(--azul-medio), var(--azul-claro));
  color: var(--branco);
  padding: 6px 18px; border-radius: 50px;
  font-size: 13px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
  margin-bottom: 16px;
}

/* ========== TECH GRID ========== */
.tech-grid { grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

/* ========== PILARES SECUNDÁRIOS ========== */
.pillars-grid { display: flex; gap: 24px; margin-top: 48px; justify-content: center; }
.pillar {
  background: var(--branco);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--sombra-card);
  border: 1px solid var(--cinza-leve);
  flex: 1; max-width: 480px;
}
.pillar h3 { color: var(--azul-medio); margin-bottom: 12px; }

/* ========== CTA ========== */
.cta {
  background: linear-gradient(175deg, var(--azul-escuro) 0%, #004A8F 50%, var(--azul-medio) 100%);
  color: var(--branco); text-align: center;
}

.cta .cta-inner { padding: 80px 0 24px; }
.cta h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700; margin-bottom: 16px;
}
.cta p {
  font-size: 1.1rem;
  max-width: 560px; margin: 0 auto 36px;
  opacity: 0.92; line-height: 1.7;
}

/* ========== IFRAME ISA — dynamic shrink on scroll up ========== */
.cta.isa-section {
  position: relative;
  z-index: 1;
}

.cta-wrapper {
  position: relative;
  width: calc(100% - 48px);
  margin: 24px auto 0;
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;
  box-shadow: 0 -2px 24px rgba(0, 0, 0, 0.15);
}

.isa-iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 300px;
  border: none;
  background: #fff;
}

.isa-fallback {
  display: none;
  position: absolute;
  inset: 0;
  padding: 60px 40px;
  text-align: center;
  color: var(--azul-escuro);
  background: rgba(0, 51, 102, 0.85);
}

.isa-fallback h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
  color: var(--branco);
}

.isa-fallback p {
  font-size: 1rem;
  opacity: 0.85;
}

.isa-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: absolute;
  inset: 0;
  gap: 24px;
  background: rgba(0, 51, 102, 0.85);
}

.isa-loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid rgba(255, 255, 255, 0.2);
  border-top-color: var(--azul-claro);
  border-radius: 50%;
  animation: isa-spin 1s linear infinite;
}

@keyframes isa-spin {
  to { transform: rotate(360deg); }
}

.isa-loading p {
  color: var(--branco);
  font-size: 1rem;
  opacity: 0.9;
}

/* ========== FOOTER ========== */
.footer {
  background: var(--azul-escuro);
  color: rgba(255, 255, 255, 0.7);
  padding: 32px 0; text-align: center; font-size: 14px;
}
.footer-inner p { margin-bottom: 4px; }

/* ========== SCROLL REVEAL ========== */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* ========== RESPONSIVO ========== */
@media (max-width: 768px) {
  .header-inner { height: 64px; }

  .nav-toggle { display: flex; }

  .nav-list {
    position: fixed; top: 64px; left: 0; right: 0;
    background: var(--branco);
    flex-direction: column; gap: 0; padding: 12px 0;
    border-bottom: 1px solid var(--cinza-leve);
    box-shadow: 0 8px 24px rgba(0, 51, 102, 0.1);
    transform: translateY(-120%); opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    pointer-events: none;
  }
  .nav-list.open { transform: translateY(0); opacity: 1; pointer-events: all; }

  .nav-list li { width: 100%; }
  .nav-list a { display: block; padding: 14px 28px; font-size: 16px; }
  .btn-nav { text-align: center; margin: 8px 20px; }

  .hero { padding: 130px 0 72px; }
  .numbers-grid { gap: 40px; }
  .cards-grid, .tech-grid { grid-template-columns: 1fr; }
  .pillars-grid { flex-direction: column; }
  .pillar { max-width: none; }
  .services, .markets, .technologies, .cta { padding: 60px 0; }
}

@media (max-width: 480px) {
  .numbers-grid { gap: 32px; }
  .number-value { font-size: 2.2rem; }
}