:root {
  --primary: #1E88E5;
  --accent:  #FFC107;
  --bg:      #F4F7FA;
  --text:    #263238;
  --card:    #FFFFFF;
  --face:    #5E60CE;
  --plate:   #24907D;
  --searchrag: #1E88E5;
  --websurf: #43B0F1;
  --mainpass: #FFD600;
  --qrcode: #263238;
  --mermaid: #43B0F1;
  --vision: #1976D2;
}

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

body {
  font-family: 'Segoe UI', Tahoma, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  background-color: var(--primary);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.menu-toggle {
  display: none;
  font-size: 1.5rem;
  color: #fff;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-links {
  list-style: none;
  display: flex;
}

.nav-links li {
  margin-right: 1rem;
}

.nav-links li:last-child {
  margin-right: 0;
}

.nav-links a {
  text-decoration: none;
  color: #fff;
  font-weight: 500;
  transition: opacity 0.2s ease;
}

.nav-links a:hover {
  opacity: 0.8;
}

/* Hero */
.hero {
  text-align: center;
  padding: 4rem 1rem;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto;
}

/* Sistema cards */
.systems {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.card {
  background-color: var(--card);
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.09);
  padding: 1.7rem 1.3rem 1.3rem 1.3rem;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 340px;
  border-left: 5px solid var(--primary);
  animation: fadein 0.8s;
}

.card:hover {
  transform: translateY(-7px) scale(1.012);
  box-shadow: 0 8px 24px rgba(30,136,229,0.15);
  z-index: 2;
}

.card h2 {
  margin-bottom: 0.6rem;
  color: var(--primary);
  font-size: 1.45rem;
  font-weight: bold;
}

.card p {
  margin-bottom: 1rem;
  font-size: 1.08rem;
  font-weight: 400;
}

.card ul {
  list-style: disc outside;
  padding-left: 1.2rem;
  margin-bottom: 1.1rem;
  font-size: 1.01rem;
}

.card ul li {
  margin-bottom: 0.45rem;
}

.card .btn-primary {
  margin-top: auto;
}

/* Bordas coloridas específicas por produto */
.card-searchrag  { border-left-color: var(--searchrag);}
.card-websurf    { border-left-color: var(--websurf);}
.card-mainpass   { border-left-color: var(--mainpass);}
.card-qrcode     { border-left-color: var(--qrcode);}
.card-mermaid    { border-left-color: var(--mermaid);}
.card-vision     { border-left-color: var(--vision);}
.card-faces      { border-left-color: var(--face);}
.card-places     { border-left-color: var(--plate);}

/* Animação fade */
@keyframes fadein {
  from { opacity: 0; transform: translateY(16px);}
  to   { opacity: 1; transform: none;}
}

/* Card Icons - Padrão para todos */
.card-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.8rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 50%, #fff 100%);
  box-shadow: 0 1px 7px rgba(0,0,0,0.10);
  flex-shrink: 0;
}
.card-icon span {
  display: block;
}

/* Search & RAG: lupa + documento */
.icon-searchrag {
  width: 28px; height: 28px; position: relative;
}
.icon-searchrag::before {
  content: '';
  position: absolute;
  left: 3px; top: 5px;
  width: 13px; height: 17px;
  background: #fff;
  border-radius: 2px;
  border: 2px solid #1E88E5;
}
.icon-searchrag::after {
  content: '';
  position: absolute;
  right: 0; bottom: 2px;
  width: 8px; height: 8px;
  border: 3px solid #1E88E5;
  border-radius: 50%;
  background: #fff;
}

/* Web Surf: globo/internet */
.icon-websurf {
  width: 28px; height: 28px; position: relative;
  background: #fff;
  border-radius: 50%;
  border: 2px solid #43B0F1;
}
.icon-websurf::before {
  content: '';
  position: absolute;
  left: 6px; top: 13px;
  width: 16px; height: 2px;
  background: #43B0F1;
  border-radius: 1px;
}
.icon-websurf::after {
  content: '';
  position: absolute;
  left: 13px; top: 6px;
  width: 2px; height: 16px;
  background: #43B0F1;
  border-radius: 1px;
}

/* Main Pass: chave */
.icon-mainpass {
  width: 28px; height: 28px; position: relative;
}
.icon-mainpass::before {
  content: '';
  position: absolute;
  left: 2px; top: 10px;
  width: 16px; height: 6px;
  background: #FFD600;
  border-radius: 3px 12px 12px 3px;
  border: 2px solid #FFD600;
}
.icon-mainpass::after {
  content: '';
  position: absolute;
  right: 2px; top: 12px;
  width: 8px; height: 8px;
  background: #fff;
  border: 2px solid #FFD600;
  border-radius: 50%;
}

/* QR Code Manager: mini qr code */
.icon-qrcode {
  width: 28px; height: 28px; position: relative;
  background: #fff;
  border: 2px solid #263238;
  border-radius: 6px;
}
.icon-qrcode::before, .icon-qrcode::after {
  content: '';
  position: absolute;
  background: #263238;
}
.icon-qrcode::before {
  left: 4px; top: 4px; width: 4px; height: 4px; border-radius: 1px;
}
.icon-qrcode::after {
  right: 4px; bottom: 4px; width: 4px; height: 4px; border-radius: 1px;
}
.icon-qrcode span {
  display: block; position: absolute; left: 12px; top: 12px; width: 4px; height: 4px;
  background: #263238; border-radius: 1px;
}

/* Mermaid IA: diagrama/fluxo */
.icon-mermaid {
  width: 28px; height: 28px; position: relative;
}
.icon-mermaid::before, .icon-mermaid::after {
  content: '';
  position: absolute; border-radius: 3px;
}
.icon-mermaid::before {
  left: 2px; top: 8px; width: 10px; height: 10px; background: #43B0F1;
  box-shadow: 12px 0 0 #43B0F1;
}
.icon-mermaid::after {
  left: 7px; top: 13px; width: 14px; height: 2px; background: #43B0F1;
}

/* Vision: olho/câmera */
.icon-vision {
  width: 28px; height: 28px; position: relative;
}
.icon-vision::before {
  content: '';
  position: absolute;
  left: 2px; top: 10px;
  width: 24px; height: 8px;
  background: #1976D2;
  border-radius: 20px / 7px;
}
.icon-vision::after {
  content: '';
  position: absolute;
  left: 10px; top: 13px;
  width: 8px; height: 8px;
  background: #fff;
  border-radius: 50%;
  border: 2px solid #1976D2;
}

/* Faces: rosto */
.icon-face {
  width: 28px; height: 28px; position: relative;
}
.icon-face::before, .icon-face::after {
  content: '';
  position: absolute;
  left: 50%; transform: translateX(-50%);
  background: var(--face);
  border-radius: 50%;
}
.icon-face::before {
  top: 4px;
  width: 20px; height: 20px;
  background: var(--face);
  box-shadow: 0 0 0 2px #fff;
}
.icon-face::after {
  top: 18px;
  width: 18px; height: 10px;
  background: none;
  border-bottom: 3px solid var(--face);
  border-radius: 0 0 10px 10px;
}
.icon-face span {
  display: block;
  position: absolute;
  width: 3px; height: 3px;
  background: #fff;
  top: 11px;
  border-radius: 50%;
}
.icon-face span:first-child { left: 10px; }
.icon-face span:last-child { left: 15px; }

/* Places: placa veicular */
.icon-plate {
  width: 28px;
  height: 20px;
  background: var(--plate);
  border-radius: 4px;
  position: relative;
  box-shadow: 0 0 0 2px #fff;
}
.icon-plate::before {
  content: '';
  display: block;
  position: absolute;
  top: 3px;
  left: 4px;
  width: 20px;
  height: 6px;
  background: #fff;
  border-radius: 2px;
}
.icon-plate::after {
  content: '';
  display: block;
  position: absolute;
  bottom: 3px;
  left: 4px;
  width: 20px;
  height: 6px;
  background: #fff;
  border-radius: 2px;
}

/* Botão */
.btn-primary {
  margin-top: auto;
  display: inline-block;
  background: var(--primary);
  color: #fff !important;
  padding: 0.6rem 1.5rem;
  border-radius: 100px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: 0.5px;
  transition: background 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 8px rgba(30,136,229,0.09);
  font-size: 1rem;
  border: none;
  cursor: pointer;
}
.btn-primary:hover, .btn-primary:focus {
  background: var(--accent);
  color: var(--primary) !important;
  box-shadow: 0 3px 12px rgba(255,193,7,0.14);
  outline: none;
}

/* Footer */
footer {
  text-align: center;
  padding: 1.5rem;
  background-color: var(--primary);
  color: #fff;
  font-size: 0.9rem;
}

/* Responsividade */
@media (max-width: 900px) {
  .systems {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 600px) {
  .systems {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  .card {
    padding: 1.1rem 0.7rem 1rem 0.7rem;
    min-height: 0;
  }
  .hero h1 {
    font-size: 2rem;
  }
  .btn-primary {
    width: 100%;
    padding: 0.8rem;
    font-size: 1.1rem;
  }
  .card-icon {
    width: 42px;
    height: 42px;
    margin-bottom: 0.5rem;
  }
}