* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #0f0f0f;
  color: #ffffff;
}

/* Layout */
.layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 240px;
  background: #161616;
  padding: 30px 20px;
  border-right: 1px solid #2a2a2a;
}

.logo {
  margin-bottom: 40px;
  font-size: 20px;
  font-weight: bold;
}

.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.sidebar a {
  color: #cccccc;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 6px;
  transition: 0.2s ease;
}

.sidebar a:hover {
  background: #1f1f1f;
  color: #00bfff;
}

/* Active link */
.sidebar a.active {
  background: #00bfff;
  color: #000;
}

/* Main content */
.content {
  flex: 1;
  padding: 60px;
}

/* Responsive */
@media (max-width: 768px) {
  .layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid #2a2a2a;
  }

  .content {
    padding: 30px;
  }
}