/* Pharma Lab — Shared Styles
 * Dark theme with violet/crimson/amber accents, glassmorphism, responsive
 */

:root {
  --bg-deep: #050510;
  --bg-card: rgba(12, 12, 32, 0.7);
  --pharma-violet: #8b5cf6;
  --pharma-crimson: #f43f5e;
  --pharma-amber: #f59e0b;
  --pharma-cyan: #06b6d4;
  --text-primary: #e8e8f0;
  --text-secondary: #7c7c9e;
  --glass-border: rgba(255, 255, 255, 0.06);
  --border-glow: rgba(139, 92, 246, 0.15);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* Background effects */
.bg-mesh {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -2;
  background:
    radial-gradient(circle at 20% 20%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(244, 63, 94, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.04) 0%, transparent 50%);
  animation: meshMove 25s ease-in-out infinite alternate;
}
@keyframes meshMove { 0% { transform: scale(1) rotate(0deg); } 100% { transform: scale(1.15) rotate(-3deg); } }

.scanlines {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1;
  background: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(139, 92, 246, 0.012) 3px, rgba(139, 92, 246, 0.012) 6px);
  pointer-events: none;
}

.grid-pattern {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: -1;
  background-image: linear-gradient(rgba(139, 92, 246, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(139, 92, 246, 0.03) 1px, transparent 1px);
  background-size: 70px 70px; pointer-events: none;
  mask-image: radial-gradient(circle at center, black 30%, transparent 100%);
}

/* Navigation */
.nav { display: flex; align-items: center; justify-content: space-between; padding: 14px 32px; border-bottom: 1px solid var(--glass-border); flex-wrap: wrap; gap: 10px; }
.nav a { color: var(--pharma-violet); text-decoration: none; font-weight: 600; font-size: 13px; }
.nav-title { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--text-secondary); }

/* Simulation Container */
.sim-container { display: grid; grid-template-columns: 1fr 340px; gap: 20px; max-width: 1400px; margin: 0 auto; padding: 20px; }

/* Canvas Area */
.canvas-wrap { background: var(--bg-card); border-radius: 16px; padding: 20px; position: relative; border: 1px solid var(--glass-border); }
canvas { width: 100%; border-radius: 8px; background: #0a0a1a; display: block; }

/* Stats Overlay */
.stats { position: absolute; top: 30px; left: 30px; display: flex; flex-direction: column; gap: 6px; z-index: 5; }
.stat { font-size: 11px; color: var(--text-secondary); font-family: 'JetBrains Mono', monospace; }
.stat span { color: var(--pharma-violet); font-weight: 700; font-size: 13px; }

/* Controls Panel */
.controls { background: var(--bg-card); border-radius: 16px; padding: 24px; display: flex; flex-direction: column; gap: 16px; border: 1px solid var(--glass-border); }
.controls h3 { font-size: 12px; color: var(--pharma-violet); text-transform: uppercase; letter-spacing: 1.5px; font-family: 'JetBrains Mono', monospace; margin-bottom: 4px; }
.control-group { display: flex; flex-direction: column; gap: 6px; }
.control-group label { font-size: 11px; color: var(--text-secondary); display: flex; justify-content: space-between; font-family: 'JetBrains Mono', monospace; }
.control-group input[type="range"] { width: 100%; accent-color: var(--pharma-violet); cursor: pointer; }
.control-group select { background: var(--bg-deep); color: var(--text-primary); border: 1px solid var(--glass-border); padding: 8px 12px; border-radius: 8px; font-size: 13px; font-family: 'Inter', sans-serif; }
.control-group input[type="number"] { background: var(--bg-deep); color: var(--text-primary); border: 1px solid var(--glass-border); padding: 8px 12px; border-radius: 8px; font-size: 13px; font-family: 'JetBrains Mono', monospace; width: 100%; }

/* Buttons */
.btn { padding: 10px 16px; border-radius: 8px; border: none; font-weight: 600; cursor: pointer; font-size: 13px; transition: all 0.2s; font-family: 'Inter', sans-serif; }
.btn:hover { opacity: 0.8; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--pharma-violet), #6d28d9); color: #fff; }
.btn-secondary { background: transparent; color: var(--text-primary); border: 1px solid var(--glass-border); }
.btn-secondary:hover { border-color: var(--pharma-violet); }
.btn-row { display: flex; gap: 8px; flex-wrap: wrap; }

/* Math Panel */
.math-panel { background: var(--bg-card); border-radius: 16px; padding: 24px; margin-top: 20px; grid-column: 1 / -1; border: 1px solid var(--glass-border); }
.math-panel h3 { font-size: 12px; color: var(--pharma-violet); margin-bottom: 14px; text-transform: uppercase; letter-spacing: 1.5px; font-family: 'JetBrains Mono', monospace; }
.math-panel pre { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--text-secondary); background: #0a0a1a; padding: 16px; border-radius: 8px; overflow-x: auto; line-height: 1.7; border: 1px solid var(--glass-border); }

/* Overlay */
.overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); border-radius: 16px; z-index: 10; }
.overlay span { font-size: 48px; font-weight: 800; color: #fff; letter-spacing: 4px; font-family: 'JetBrains Mono', monospace; }

/* Checkbox toggle */
.toggle-group { display: flex; align-items: center; gap: 10px; padding: 8px 0; }
.toggle-group input[type="checkbox"] { accent-color: var(--pharma-violet); width: 16px; height: 16px; cursor: pointer; }
.toggle-group label { font-size: 12px; color: var(--text-secondary); cursor: pointer; }

/* Responsive */
@media (max-width: 900px) { .sim-container { grid-template-columns: 1fr; } }

/* Scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-deep); }
::-webkit-scrollbar-thumb { background: rgba(139, 92, 246, 0.25); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(139, 92, 246, 0.45); }