:root {
  --bg-dark: #0f172a; /* Slate 900 */
  --bg-card: rgba(30, 41, 59, 0.7); /* Slate 800 */
  --text-main: #f8fafc; /* Slate 50 */
  --text-muted: #94a3b8; /* Slate 400 */
  --accent-primary: #3b82f6; /* Blue 500 */
  --accent-secondary: #8b5cf6; /* Violet 500 */
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-highlight: rgba(255, 255, 255, 0.05);
}

.bg-purple {
  background-color: rgba(168, 85, 247, var(--bs-bg-opacity, 1)) !important;
}
.text-purple {
  color: #a855f7 !important;
}

body.dark-theme {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: 'Plus Jakarta Sans', sans-serif;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Dynamic Mesh Background */
body.dark-theme::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(59, 130, 246, 0.08), transparent 40%),
              radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.08), transparent 30%);
  z-index: -1;
  pointer-events: none;
}

.glass-nav {
  background: rgba(15, 23, 42, 0.75) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  position: relative;
  z-index: 1050;
}

.glass-nav .dropdown-menu {
  z-index: 1060 !important;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5) !important;
  background: rgba(15, 23, 42, 0.95) !important;
}

.glass-nav .navbar-brand, .glass-nav .nav-link {
  color: var(--text-main) !important;
  font-weight: 500;
  transition: color 0.3s ease;
}

.glass-nav .nav-link:hover {
  color: var(--accent-primary) !important;
}

.text-gradient {
  background: linear-gradient(to right, var(--accent-primary), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--glass-highlight), transparent);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
  border-color: rgba(255,255,255,0.2);
}

.btn-premium {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #fff;
  border: none;
  font-weight: 600;
  border-radius: 8px;
  padding: 0.6rem 1.5rem;
  transition: all 0.3s ease;
  box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-premium:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
  color: #fff;
}

.btn-premium:active {
  transform: scale(0.96);
}

.btn-premium:disabled {
  background: #334155;
  box-shadow: none;
  color: #94a3b8;
  cursor: not-allowed;
  transform: none;
}

.monaco-wrapper {
  position: relative;
  border-radius: 12px;
  padding: 2px;
  background: linear-gradient(135deg, var(--glass-border), rgba(255,255,255,0.02));
  transition: background 0.3s ease;
}

.monaco-wrapper:focus-within {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
}

.monaco-container {
  border-radius: 10px;
  overflow: hidden;
  background: #1e1e1e; /* Monaco dark background */
}

/* Monaco Cursor & Font Alignment Fixes */
.monaco-editor, .monaco-editor * {
  letter-spacing: normal !important;
}

.monaco-editor .view-line {
  letter-spacing: normal !important;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: #475569;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

/* Animations */
@keyframes slideUp {
  0% { opacity: 0; transform: translateY(30px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  0% { opacity: 0; }
  100% { opacity: 1; }
}