:root {
  --bg: #070b14;
  --panel: #101827;
  --panel-light: #162033;
  --blue: #1f6feb;
  --blue-dark: #0b3d91;
  --orange: #ff6a00;
  --text: #f5f7fb;
  --muted: #aeb8c7;
  --border: #263247;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: #030712;
  border-right: 1px solid var(--border);
  padding: 24px;
}

.logo {
  margin-bottom: 32px;
}

.logo h1 {
  font-size: 22px;
  margin: 0;
  color: white;
}

.logo p {
  color: var(--muted);
  font-size: 13px;
}

.nav a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  padding: 13px 14px;
  border-radius: 10px;
  margin-bottom: 8px;
}

.nav a:hover,
.nav a.active {
  background: var(--blue-dark);
  color: white;
}

.main {
  padding: 32px;
}

.hero {
  background: linear-gradient(135deg, #061b3f, #0b3d91);
  border: 1px solid var(--border);
  border-bottom: 6px solid var(--orange);
  border-radius: 20px;
  padding: 36px;
  margin-bottom: 28px;
}

.hero h2 {
  font-size: 38px;
  margin: 0 0 10px;
}

.hero p {
  color: #dbe8ff;
  line-height: 1.7;
}

.badge {
  display: inline-block;
  background: rgba(255, 106, 0, 0.15);
  color: #ffb27a;
  border: 1px solid rgba(255, 106, 0, 0.4);
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: bold;
  margin-top: 10px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.card {
  background: linear-gradient(180deg, var(--panel), var(--panel-light));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
}

.card h3 {
  margin-top: 0;
  color: white;
}

.card p,
.card li {
  color: var(--muted);
  line-height: 1.7;
}

.card.accent {
  border-left: 6px solid var(--orange);
}

.section-title {
  color: white;
  border-bottom: 3px solid var(--orange);
  padding-bottom: 10px;
  margin-top: 35px;
}

.checklist li {
  margin-bottom: 10px;
}

.quote {
  font-size: 22px;
  font-style: italic;
  border-left: 5px solid var(--orange);
  padding-left: 18px;
  color: white;
}

@media (max-width: 850px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
  }

  .hero h2 {
    font-size: 30px;
  }

  .main {
    padding: 18px;
  }
}