:root {
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --bg-color: #0f172a;
  --card-bg: rgba(30, 41, 59, 0.7);
  --card-border: rgba(255, 255, 255, 0.1);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --danger: #ef4444;
  --success: #10b981;
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-color);
  background-image: 
    radial-gradient(at 0% 0%, hsla(253,16%,7%,1) 0, transparent 50%), 
    radial-gradient(at 50% 0%, hsla(225,39%,30%,0.2) 0, transparent 50%), 
    radial-gradient(at 100% 0%, hsla(339,49%,30%,0.2) 0, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
}

/* Glasscard Utility */
.glass-panel {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Sidebar Navigation */
.sidebar {
  width: 280px;
  height: 100vh;
  position: fixed;
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  z-index: 10;
}

.sidebar-logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(to right, #818cf8, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

.nav-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 12px;
  transition: all 0.2s ease;
  font-weight: 500;
}

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

.nav-link.active {
  border-left: 4px solid var(--primary-color);
}

/* Main Content area */
.main-content {
  margin-left: 280px;
  padding: 2.5rem;
  width: calc(100% - 280px);
  min-height: 100vh;
}

/* Typography & General */
h1, h2, h3 {
  font-weight: 700;
  margin-bottom: 1rem;
}

p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--card-border);
  border-radius: 8px;
  color: var(--text-main);
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  color: #fff;
}

.btn-primary {
  background: var(--primary-color);
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

/* Tables */
.table-container {
  overflow-x: auto;
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 1rem;
  border-bottom: 1px solid var(--card-border);
}

th {
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.badge-success { color: var(--success); }
.badge-danger { color: var(--danger); }