/* ===========================================================
   OKENATECH — Site institucional v1
   Paleta: azul royal (#1A3AB8) + cyan (#00B8D4)
   Tom: moderno/startup + sério + comprometido
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --preto: #0a0a0a;
  --preto-2: #141414;
  --preto-3: #1f1f1f;
  --branco: #ffffff;
  --creme: #f5f5f5;
  --cinza: #999;
  --cinza-claro: #ccc;
  --azul: #1A3AB8;
  --azul-claro: #2563eb;
  --azul-escuro: #102670;
  --cyan: #00B8D4;
  --cyan-claro: #22d3ee;
  --container: 1200px;
  --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--branco);
  color: var(--preto);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: var(--azul); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--cyan); }

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

/* ===========================================================
   HEADER — fixo, branco, sombra sutil
   =========================================================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(26, 58, 184, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-img {
  width: 200px;
  height: auto;
}

.logo-text {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 1.5px;
  color: var(--azul);
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.5px;
  color: var(--preto);
  transition: color .2s;
}
.nav a:hover { color: var(--azul); }

.nav .nav-cta {
  font-weight: 700;
  font-size: 13px;
  padding: 10px 22px;
  background: var(--azul);
  color: var(--branco);
  border-radius: 999px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: all .2s;
}
.nav .nav-cta:hover { background: var(--cyan); color: var(--branco); }

.menu-toggle {
  display: none;
  font-size: 28px;
  background: transparent;
  border: none;
  color: var(--azul);
  cursor: pointer;
}

/* ===========================================================
   HERO — clean, azul, com gradiente sutil
   =========================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
  background: linear-gradient(180deg, #ffffff 0%, #f0f4ff 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top right, rgba(0, 184, 212, 0.08), transparent 60%),
    radial-gradient(ellipse at bottom left, rgba(26, 58, 184, 0.08), transparent 60%);
  z-index: 0;
}

.hero-inner {
  text-align: center;
  position: relative;
  z-index: 2;
}

.hero-logo {
  width: clamp(420px, 65vw, 640px);
  margin: 0 auto 48px;
}

/* v1.4: removida — texto agora está embutido na logo */
/* .hero-impact-tagline */

.hero-impact {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: clamp(32px, 4.5vw, 52px);
  letter-spacing: -0.5px;
  line-height: 1.1;
  color: var(--preto);
  margin-bottom: 24px;
}

/* v1.2: "O que criamos..." — segunda frase de impacto (azul royal) */
.hero-impact-secondary {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: clamp(28px, 3.6vw, 44px);
  letter-spacing: -0.5px;
  line-height: 1.15;
  color: var(--azul);
  margin-bottom: 24px;
}

.hero-subtitle {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: clamp(15px, 1.6vw, 18px);
  color: #4a5568;
  max-width: 680px;
  margin: 0 auto 48px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===========================================================
   BUTTONS
   =========================================================== */
.btn {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  transition: all .2s ease;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--azul);
  color: var(--branco);
}
.btn-primary:hover {
  background: var(--cyan);
  color: var(--branco);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 184, 212, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--preto);
  border-color: rgba(26, 58, 184, 0.3);
}
.btn-ghost:hover {
  border-color: var(--azul);
  background: var(--azul);
  color: var(--branco);
}

.btn-lg { padding: 18px 40px; font-size: 16px; }

/* ===========================================================
   SECTIONS
   =========================================================== */
.section { padding: 100px 0; }
.section-alt { background: #f8faff; }

.eyebrow {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--cyan);
  margin-bottom: 16px;
  text-align: center;
  text-transform: uppercase;
}

.section-title {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.5px;
  line-height: 1.15;
  text-align: center;
  margin-bottom: 24px;
  color: var(--preto);
}

.section-subtitle {
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  font-size: 17px;
  color: #4a5568;
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

/* ===========================================================
   SERVICES — grid 3 colunas
   =========================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--branco);
  border: 1px solid rgba(26, 58, 184, 0.08);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--azul), var(--cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}

.service-card:hover {
  border-color: rgba(26, 58, 184, 0.3);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(26, 58, 184, 0.08);
}
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  font-size: 40px;
  margin-bottom: 20px;
  display: block;
}

.service-card h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 22px;
  color: var(--preto);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 15px;
  color: #4a5568;
  line-height: 1.6;
}

/* ===========================================================
   CASES — grid 4 colunas
   =========================================================== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.case-card {
  background: var(--branco);
  border: 1px solid rgba(26, 58, 184, 0.08);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all .3s ease;
}

.case-card:hover {
  border-color: var(--cyan);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px rgba(0, 184, 212, 0.1);
}

.case-tag {
  display: inline-block;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--cyan);
  background: rgba(0, 184, 212, 0.1);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.case-card h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 20px;
  color: var(--preto);
  margin-bottom: 10px;
}

.case-card p {
  font-size: 13px;
  color: #4a5568;
  margin-bottom: 16px;
  line-height: 1.5;
}

.case-card a {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--azul);
}

/* ===========================================================
   STACK — grid 4 colunas
   =========================================================== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 32px;
}

.stack-category {
  background: var(--branco);
  border: 1px solid rgba(26, 58, 184, 0.08);
  border-radius: var(--radius);
  padding: 32px 28px;
}

.stack-category h3 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.stack-category ul {
  list-style: none;
}

.stack-category li {
  padding: 10px 0;
  border-bottom: 1px solid rgba(26, 58, 184, 0.06);
  font-size: 14px;
  color: #4a5568;
}
.stack-category li:last-child { border-bottom: none; }
.stack-category li::before {
  content: '→ ';
  color: var(--azul);
  font-weight: 700;
  margin-right: 6px;
}

/* ===========================================================
   CTA SECTION
   =========================================================== */
.section-cta {
  text-align: center;
  background: linear-gradient(135deg, var(--azul) 0%, var(--azul-escuro) 100%);
  color: var(--branco);
}
.section-cta .section-title { color: var(--branco); }
.section-cta .section-subtitle { color: rgba(255,255,255,0.85); }
.section-cta .btn-primary {
  background: var(--branco);
  color: var(--azul);
}
.section-cta .btn-primary:hover {
  background: var(--cyan);
  color: var(--branco);
}

/* ===========================================================
   FOOTER
   =========================================================== */
.footer {
  background: var(--preto);
  color: var(--creme);
  padding: 80px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 64px;
  margin-bottom: 64px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
}

.footer-logo-okena {
  width: 160px;
  height: auto;
}

.footer-holding-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  text-decoration: none;
  transition: opacity .2s ease;
}

.footer-holding-link:hover { opacity: 0.85; }

.footer-logo-lmg {
  width: 120px;
  height: auto;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.footer-cols .footer-title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-cols a {
  display: block;
  font-size: 13px;
  color: var(--cinza-claro);
  margin-bottom: 8px;
  transition: color .2s;
}
.footer-cols a:hover { color: var(--branco); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 32px;
  text-align: center;
}
.footer-bottom p {
  font-size: 12px;
  color: var(--cinza);
  letter-spacing: 1.5px;
}

/* ===========================================================
   RESPONSIVE
   =========================================================== */
@media (max-width: 900px) {
  .nav { display: none; }
  .menu-toggle { display: block; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    background: var(--branco);
    padding: 32px 24px;
    border-bottom: 1px solid rgba(26, 58, 184, 0.15);
    gap: 20px;
  }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); gap: 24px 32px; }
  .footer-brand {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    width: 100%;
  }
  .footer-logo-okena, .footer-logo-lmg { width: 120px; }
}

@media (max-width: 600px) {
  .header-inner { height: 64px; gap: 10px; padding: 0 16px; }
  .logo-img { width: 160px; }
  .logo-text { font-size: 14px; }
  .hero { padding: 100px 0 60px; }
  .hero-logo { width: 280px; margin-bottom: 24px; }
  .hero-impact { font-size: 26px; }
  .section { padding: 60px 0; }
  .footer-cols { grid-template-columns: repeat(2, 1fr); }
}