/* Professional B&W Industrial Design System */
:root {
  --bg: #000000;
  --text: #ffffff;
  --accent: #ffffff;
  --border: #333333;
  --card-bg: #111111;
  --input-bg: #050505;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* Industrial Sharp Edges */
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  display: flex;
  min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
  width: 280px;
  border-right: 1px solid var(--border);
  padding: 3rem 2rem;
  background: var(--bg);
}

.sidebar h1 {
  font-size: 1.2rem;
  letter-spacing: 0.3em;
  border-bottom: 3px solid var(--text);
  padding-bottom: 0.5rem;
  margin-bottom: 3rem;
}

.sidebar nav ul {
  list-style: none;
}

.sidebar nav li a {
  color: var(--text);
  text-decoration: none;
  display: block;
  padding: 1rem 0;
  text-transform: uppercase;
  font-weight: bold;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  border-bottom: 1px solid #111;
  transition: color 0.2s;
}

.sidebar nav li a:hover {
  color: #888;
}

/* Main Content Area */
.main-content {
  flex: 1;
  padding: 4rem;
}

h2 {
  font-size: 2.5rem;
  text-transform: uppercase;
  font-weight: 900;
  margin-bottom: 2rem;
  letter-spacing: -0.02em;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 2rem;
  margin-bottom: 2rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.stat-value {
  font-size: 3.5rem;
  font-weight: 900;
  display: block;
}

.btn {
  background: var(--text);
  color: var(--bg);
  border: none;
  padding: 1rem 2rem;
  font-weight: bold;
  text-transform: uppercase;
  cursor: pointer;
  display: inline-block;
  text-decoration: none;
}

.btn:hover {
  opacity: 0.8;
}