:root {
  --bg-color: #050505;
  --card-bg: rgba(20, 20, 20, 0.6);
  --border-color: rgba(255, 255, 255, 0.08);
  --accent-color: #00ffaa;
  --accent-glow: rgba(0, 255, 170, 0.2);
  --text-main: #ffffff;
  --text-dim: #888888;
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --sidebar-width: 260px;
  --glass-blur: 15px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

/* Glassmorphism Background */
body::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -10%;
  width: 50%;
  height: 50%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  filter: blur(80px);
  z-index: -1;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  height: 100%;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(var(--glass-blur));
  border-right: 1px solid var(--border-color);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  z-index: 10;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--accent-color);
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-item {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-item:hover, .nav-item.active {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.nav-item.active {
  border-left: 3px solid var(--accent-color);
}

/* Main Content */
.main-content {
  flex: 1;
  padding: 2rem 3rem;
  overflow-y: auto;
  position: relative;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.welcome h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.welcome p {
  color: var(--text-dim);
}

/* Grid System */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 1.5rem;
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-5px);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  font-weight: 600;
}

.status-badge {
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
}

.status-online {
  background: rgba(0, 255, 170, 0.1);
  color: var(--accent-color);
  border: 1px solid rgba(0, 255, 170, 0.2);
}

.service-stat {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.service-desc {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Custom Buttons */
.btn-primary {
  background: var(--accent-color);
  color: #000;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 700;
  text-decoration: none;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  box-shadow: 0 0 20px var(--accent-glow);
  transform: scale(1.02);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.card {
  animation: fadeIn 0.5s ease forwards;
}