/* =========================================================
   LAB 28 — Estilos do site
   Identidade: minimalista, tech, clean
   Cores: #4A4A4A (cinza grafite), #00AEEF (ciano), #FFFFFF
   ========================================================= */

/* Reset & base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --color-dark: #4A4A4A;
  --color-darker: #2E2E2E;
  --color-accent: #00AEEF;
  --color-accent-dark: #0090C9;
  --color-light: #D8D8D8;
  --color-bg: #FFFFFF;
  --color-bg-alt: #FAFAFA;
  --color-bg-dark: #1E1E1E;

  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-display: 'Inter', sans-serif;

  --tracking-wide: 0.18em;
  --tracking-mid: 0.08em;

  --max-w: 1200px;
  --radius: 4px;
  --transition: 200ms ease;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-dark);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; height: auto; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-dark); }

/* ===== Layout containers ===== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

section { padding: 80px 0; }
@media (max-width: 768px) { section { padding: 56px 0; } }

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-light);
  z-index: 100;
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.nav-logo img { height: 42px; width: auto; }
.nav-menu {
  display: flex;
  gap: 36px;
  list-style: none;
}
.nav-menu a {
  color: var(--color-dark);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: var(--tracking-mid);
  text-transform: uppercase;
  position: relative;
  padding: 4px 0;
}
.nav-menu a:hover,
.nav-menu a.active { color: var(--color-accent); }
.nav-menu a.active::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-dark);
  margin: 6px 0;
  transition: var(--transition);
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: white;
    flex-direction: column;
    gap: 0;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-light);
  }
  .nav-menu.open { display: flex; }
  .nav-menu li { width: 100%; }
  .nav-menu a { display: block; padding: 14px 24px; }
}

/* ===== Hero (Home) ===== */
.hero {
  padding: 100px 24px 80px;
  text-align: center;
  position: relative;
}
.hero-logo {
  max-width: 420px;
  margin: 0 auto 28px;
}
.hero-slogan {
  font-size: 12px;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-top: 96px;
  font-weight: 400;
}
.hero-tagline {
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 200;
  color: var(--color-dark);
  max-width: 720px;
  margin: 0 auto 16px;
  line-height: 1.45;
}
.hero-tagline .accent { color: var(--color-accent); font-weight: 200; }

/* ===== Section titles ===== */
.section-title {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 300;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-dark);
  text-align: center;
  margin-bottom: 12px;
}
.section-subtitle {
  text-align: center;
  color: var(--color-dark);
  opacity: 0.7;
  max-width: 620px;
  margin: 0 auto 48px;
  font-size: 15px;
}
.section-divider {
  width: 40px; height: 1px;
  background: var(--color-accent);
  margin: 16px auto 32px;
}

/* ===== Botões de contato (CTA grid) ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 820px;
  margin: 0 auto;
}
@media (max-width: 600px) { .contact-grid { grid-template-columns: 1fr; } }

.cta-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px 28px;
  background: white;
  border: 1px solid var(--color-light);
  border-radius: var(--radius);
  color: var(--color-dark);
  transition: all var(--transition);
  text-align: left;
}
.cta-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 174, 239, 0.12);
  color: var(--color-dark);
}
.cta-card .icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0, 174, 239, 0.08);
  border-radius: var(--radius);
  color: var(--color-accent);
}
.cta-card .icon svg { width: 24px; height: 24px; }
.cta-card .label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
  color: var(--color-accent);
  font-weight: 500;
  margin-bottom: 2px;
}
.cta-card .value {
  font-size: 15px;
  font-weight: 400;
  color: var(--color-dark);
}

/* ===== Diferenciais (3 colunas) ===== */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 768px) { .features { grid-template-columns: 1fr; } }

.feature {
  text-align: center;
  padding: 24px;
}
.feature .icon-large {
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
}
.feature .icon-large svg { width: 48px; height: 48px; }
.feature h3 {
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
  color: var(--color-dark);
  margin-bottom: 12px;
}
.feature p {
  font-size: 14px;
  color: var(--color-dark);
  opacity: 0.75;
  line-height: 1.6;
}

/* ===== Page hero (interior pages) ===== */
.page-hero {
  padding: 80px 24px 40px;
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(24px, 3.5vw, 32px);
  font-weight: 200;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-dark);
}
.page-hero p {
  margin-top: 16px;
  color: var(--color-dark);
  opacity: 0.7;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Bloco com imagem ===== */
.media-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 768px) { .media-text { grid-template-columns: 1fr; gap: 32px; } }
.media-text img { border-radius: var(--radius); }
.media-text h2 {
  font-size: 22px;
  font-weight: 300;
  letter-spacing: var(--tracking-mid);
  text-transform: uppercase;
  margin-bottom: 16px;
  color: var(--color-dark);
}
.media-text p { margin-bottom: 16px; font-size: 15px; }
.media-text .accent { color: var(--color-accent); }

/* ===== Serviços ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
@media (max-width: 900px) { .services-grid { grid-template-columns: 1fr; } }

.service-card {
  background: var(--color-bg-alt);
  padding: 36px 28px;
  border-radius: var(--radius);
  border-top: 2px solid var(--color-accent);
}
.service-card h3 {
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
  color: var(--color-dark);
  margin-bottom: 20px;
}
.service-card ul { list-style: none; }
.service-card li {
  padding: 8px 0;
  border-bottom: 1px solid var(--color-light);
  font-size: 14px;
  color: var(--color-dark);
  display: flex; justify-content: space-between; align-items: center;
}
.service-card li:last-child { border-bottom: none; }
.service-card .express-badge {
  font-size: 9px;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
  border: 1px solid var(--color-accent);
  padding: 2px 6px;
  border-radius: 2px;
  margin-left: 8px;
}

/* Botão genérico */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}
.btn:hover { background: var(--color-accent-dark); color: white; transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
}
.btn-outline:hover { background: var(--color-accent); color: white; }
.btn svg { width: 16px; height: 16px; }
.center { text-align: center; }

/* ===== Galeria ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
@media (max-width: 768px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .gallery-grid { grid-template-columns: 1fr; } }

.gallery-item {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}
.gallery-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 400ms ease;
}
.gallery-item:hover img { transform: scale(1.05); }
.gallery-item::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,174,239,0.15));
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery-item:hover::after { opacity: 1; }

/* ===== Lightbox simples ===== */
.lightbox {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 1000;
  align-items: center; justify-content: center;
  padding: 24px;
  cursor: pointer;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 90vh; object-fit: contain; }
.lightbox-close {
  position: absolute; top: 20px; right: 24px;
  background: none; border: none; color: white;
  font-size: 32px; cursor: pointer; line-height: 1;
}

/* ===== Contato page ===== */
.contact-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 768px) { .contact-info { grid-template-columns: 1fr; } }

.contact-block { margin-bottom: 28px; }
.contact-block h3 {
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
  color: var(--color-accent);
  margin-bottom: 8px;
}
.contact-block p, .contact-block a {
  font-size: 15px;
  color: var(--color-dark);
  line-height: 1.5;
}

.map-embed {
  width: 100%;
  height: 360px;
  border: 1px solid var(--color-light);
  border-radius: var(--radius);
}

/* ===== Form (download tabela) ===== */
.download-section {
  background: var(--color-bg-alt);
  padding: 60px 24px;
  border-radius: var(--radius);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}
.download-section h3 {
  font-size: 18px;
  font-weight: 400;
  letter-spacing: var(--tracking-mid);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.download-section p {
  color: var(--color-dark);
  opacity: 0.75;
  margin-bottom: 28px;
  font-size: 14px;
}

.form-grid {
  display: grid;
  gap: 14px;
  text-align: left;
  margin-bottom: 20px;
}
.form-grid label {
  display: block;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-mid);
  color: var(--color-dark);
  margin-bottom: 6px;
  font-weight: 500;
}
.form-grid input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-light);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-dark);
  background: white;
  transition: border-color var(--transition);
}
.form-grid input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-success {
  display: none;
  padding: 24px;
  background: rgba(0,174,239,0.08);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  color: var(--color-dark);
}
.form-success.show { display: block; }
.form-success a { font-weight: 500; }

/* ===== Footer ===== */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 60px 24px 32px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  max-width: var(--max-w);
  margin: 0 auto 40px;
}
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr; gap: 32px; } }

.footer-grid h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
  margin-bottom: 16px;
  font-weight: 500;
}
.footer-grid p, .footer-grid a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
}
.footer-grid a:hover { color: var(--color-accent); }
.footer-logo { max-width: 140px; margin-bottom: 16px; }

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ===== WhatsApp floating button ===== */
.wpp-float {
  position: fixed;
  bottom: 24px; right: 24px;
  width: 56px; height: 56px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
  z-index: 99;
  transition: transform var(--transition);
}
.wpp-float:hover { transform: scale(1.1); color: white; }
.wpp-float svg { width: 28px; height: 28px; }