:root {
  --bg: #f5f7fb;
  --nav: #f53003;
  --accent: #ffffff;
  --card: #ffffff;
  --muted: #6b7280;
  --mono: "Courier New", Courier, monospace;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: Inter, Tahoma, Arial, sans-serif;
  background: var(--bg);
  color: #1f2937;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

ul, li {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

/* header */
header {
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  height: 64px;
  background-color: black;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  z-index: 40;
  box-shadow: 0 6px 18px rgba(2, 6, 23, 0.15);
}
#menuToggle {
  border: none;
  background-color: transparent;
  color: white;
  font-weight: bold;
  font-size: 20px;
  cursor: pointer;
  z-index: 100;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}
.logo {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
}
header .header-actions {
  color: #cbd5e1;
  font-size: 14px;
}

/* layout */
nav.sidebar {
  position: fixed;
  left: 0;
  top: 64px;
  bottom: 0;
  width: 280px;
  background: var(--nav);
  color: #d1d5db;
  padding: 18px 12px;
  overflow: auto;
  transition: transform 0.28s cubic-bezier(0.2, 0.9, 0.3, 1);
  z-index: 38;
  transform: translateX(0);
}
nav.sidebar.collapsed {
  transform: translateX(-280px);
}
nav .toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  padding: 8px;
  border-radius: 8px;
  color: #e6eefc;
  cursor: pointer;
  font-weight: 600;
}
nav .section-title {
  margin: 12px 8px 6px;
  color: #93c5fd;
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding-left: 8px;
}
nav a.item {
  display: block;
  padding: 10px 12px;
  margin: 6px;
  border-radius: 8px;
  text-decoration: none;
  color: inherit;
  transition: all 0.18s;
  font-size: 14px;
}
nav a.item:hover {
  background: rgb(26, 23, 23);
  color: #fff;
  transform: translateX(4px);
  border-left: 3px solid var(--accent);
}
nav a.item.active {
  background: rgba(0, 0, 0, 0.856);
  color: #fff;
  border-left: 3px solid var(--accent);
}

/* main content */
main {
  padding: 92px 36px 80px 36px;
  transition: padding-left 0.28s;
  padding-left: 36px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.card {
  background: var(--card);
  border-radius: 12px;
  box-shadow: 0 6px 18px rgba(20, 24, 40, 0.06);
  padding: 22px;
  margin-bottom: 26px;
  overflow: hidden;
}
#instalacao {
  display: flex;
  flex-flow: column;
  width: 100%;
  padding: 0;
  margin: 0;
}

h1,
h2,
h3 {
  margin: 0 0 12px 0;
  color: #0f1724;
}
h1 {
  font-size: 20px;
}
h2 {
  font-size: 18px;
  border-left: 4px solid var(--accent);
  padding-left: 12px;
}
p.lead {
  color: var(--muted);
  margin-top: 6px;
}

pre.cmd {
  background: #0b1220;
  color: #e6eefc;
  padding: 12px;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 13px;
  overflow: auto;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}
code.inline {
  background: #eef2ff;
  padding: 2px 6px;
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 13px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.badge {
  display: inline-block;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef2ff;
  color: #1e3a8a;
  font-weight: 600;
  font-size: 13px;
}
.muted {
  color: var(--muted);
  font-size: 13px;
}

/* table */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table th,
table td {
  padding: 8px 10px;
  border-bottom: 1px solid #eef2f7;
  text-align: left;
}
table th {
  background: #fbfdff;
  color: #0f1724;
  font-weight: 600;
}

/* helper note */
.note {
  background: #fff7ed;
  border-left: 4px solid #f59e0b;
  padding: 10px 12px;
  border-radius: 6px;
  color: #92400e;
  margin: 8px 0;
  font-size: 14px;
}

/* footer */
footer {
  max-width: 1100px;
  margin: 16px auto 40px;
  padding: 12px;
  color: var(--muted);
  text-align: center;
}

/* smooth scroll behavior and anchor highlight */
:target {
  scroll-margin-top: 110px;
}

/* overlay para mobile */
.overlay {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 37;
}

/* responsive */
@media (max-width: 980px) {
  nav.sidebar {
    transform: translateX(-280px);
    width: 280px;
  }
  nav.sidebar.show {
    transform: translateX(0);
  }
  main {
    padding: 96px 18px 60px 18px;
  }
  .overlay.active {
    display: block;
  }
}

/* small micro animations */
.pulse {
  animation: pulse 2.8s infinite;
}
@keyframes pulse {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 0.85;
  }
  100% {
    opacity: 1;
  }
}