body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, Arial;
  background: radial-gradient(circle at top, #0f1117, #0b0c10);
  color: #eaeaea;
}

/* APP BUTTON */
.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.2s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
}

.primary {
  background: linear-gradient(135deg, #00e5ff, #b9a7ff);
  color: #0b0c10;
}

/* CARD SYSTEM (SaaS DEPTH) */
.card {
  background: #14151a;
  border: 1px solid #23242b;
  border-radius: 14px;
  padding: 18px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.35);
  transition: 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: #2f313a;
}

/* BADGES */
.badge {
  display: inline-block;
  font-size: 12px;
  padding: 4px 8px;
  border-radius: 6px;
  margin-top: 8px;
}

.installed {
  background: #00e5ff;
  color: #0b0c10;
}

.not-installed {
  background: #444;
  color: #fff;
}

/* TYPOGRAPHY HIERARCHY */
h1, h2, h3 {
  margin: 0 0 10px 0;
}

p {
  color: #a7a7a7;
  font-size: 14px;
  line-height: 1.5;
}

/* APP SHELL FEEL */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: #0f1016;
  padding: 20px;
  border-right: 1px solid #1c1d22;
}

.sidebar a {
  display: block;
  padding: 10px;
  color: #aaa;
  text-decoration: none;
  border-radius: 8px;
  margin-bottom: 6px;
}

.sidebar a:hover {
  background: #1a1b22;
  color: #00e5ff;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  color: #b9a7ff;
  margin-bottom: 25px;
}

.main {
  flex: 1;
  padding: 28px;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}