/* ==========================================================================
   BEM Modern Dark Theme Design System (Blue & Light Blue Accents)
   ========================================================================== */

:root {
  --app-bg-primary: #080c18;
  --app-bg-secondary: #0f172a;
  --app-bg-elevated: #1e293b;
  --app-border-color: #334155;
  --app-border-active: #0284c7;

  --app-color-text-main: #f8fafc;
  --app-color-text-muted: #94a3b8;
  
  --app-color-blue: #0284c7;
  --app-color-light-blue: #38bdf8;
  --app-color-cyan-glow: rgba(56, 189, 248, 0.4);
  --app-color-card-shadow: rgba(2, 132, 199, 0.15);
  
  --app-color-gold: #facc15;
  --app-color-green: #10b981;
  --app-color-purple: #c084fc;
  --app-color-red: #ef4444;
}

body {
  background-color: var(--app-bg-primary) !important;
  color: var(--app-color-text-main) !important;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

/* Animations */
@keyframes neonPulse {
  0% { box-shadow: 0 0 10px rgba(56, 189, 248, 0.2), inset 0 0 10px rgba(56, 189, 248, 0.05); }
  50% { box-shadow: 0 0 20px rgba(56, 189, 248, 0.45), inset 0 0 15px rgba(56, 189, 248, 0.1); }
  100% { box-shadow: 0 0 10px rgba(56, 189, 248, 0.2), inset 0 0 10px rgba(56, 189, 248, 0.05); }
}

@keyframes floatElement {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-4px); }
  100% { transform: translateY(0px); }
}

/* BEM: App Layout & Cards */
.app-card {
  background: var(--app-bg-secondary);
  border: 1px solid var(--app-border-color);
  border-radius: 14px;
  padding: 14px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.app-card--elevated {
  background: var(--app-bg-elevated);
}

.app-card--glow {
  border-color: var(--app-color-light-blue);
  box-shadow: 0 4px 25px var(--app-color-card-shadow);
}

.app-card--interactive:hover {
  border-color: var(--app-color-light-blue);
  box-shadow: 0 6px 25px var(--app-color-cyan-glow);
  transform: translateY(-2px);
}

/* BEM: Badges */
.app-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.app-badge--blue {
  background: rgba(2, 132, 199, 0.2);
  color: var(--app-color-light-blue);
  border: 1px solid var(--app-color-blue);
}

.app-badge--gold {
  background: rgba(250, 204, 21, 0.2);
  color: var(--app-color-gold);
  border: 1px solid var(--app-color-gold);
}

.app-badge--green {
  background: rgba(16, 185, 129, 0.2);
  color: var(--app-color-green);
  border: 1px solid var(--app-color-green);
}

/* BEM: Action Buttons */
.app-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  padding: 7px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  border: none;
}

.app-btn--primary {
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  color: #ffffff;
  border: 1px solid var(--app-color-light-blue);
  box-shadow: 0 2px 10px rgba(2, 132, 199, 0.3);
}

.app-btn--primary:hover {
  background: linear-gradient(135deg, #38bdf8 0%, #0284c7 100%);
  color: #042f2e;
  box-shadow: 0 0 15px var(--app-color-light-blue);
  transform: translateY(-1px);
}

.app-btn--outline {
  background: transparent;
  color: var(--app-color-light-blue);
  border: 1px solid var(--app-border-color);
}

.app-btn--outline:hover {
  background: rgba(56, 189, 248, 0.1);
  border-color: var(--app-color-light-blue);
  color: #ffffff;
}

/* BEM: Scratch & Blockly Modules */
.blockly-wrapper {
  background: radial-gradient(circle at 50% 30%, #172554 0%, #0b0f19 70%, #030712 100%);
  border-radius: 14px;
  border: 1px solid #0284c7;
  margin-bottom: 14px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(2, 132, 199, 0.25), inset 0 0 15px rgba(56, 189, 248, 0.08);
}

.blockly-header {
  background: rgba(15, 23, 42, 0.9);
  padding: 8px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #1e293b;
  backdrop-filter: blur(4px);
}

.blockly-header__title {
  font-size: 12px;
  color: var(--app-color-light-blue);
  font-weight: bold;
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.4);
}

.blockly-header__hint {
  font-size: 11px;
  color: var(--app-color-text-muted);
}

.blockly-container {
  height: 195px;
  width: 100%;
  position: relative;
  touch-action: none;
}

/* BEM: Simulators */
.sim-arena {
  border-radius: 14px;
  margin-bottom: 14px;
  position: relative;
  user-select: none;
  touch-action: none;
  -webkit-user-select: none;
  background: radial-gradient(circle at 50% 20%, #1e1b4b 0%, #090d16 60%, #030712 100%) !important;
  border: 2px solid var(--app-color-blue);
  box-shadow: 0 0 20px rgba(2, 132, 199, 0.2);
}

.sim-arena__stars {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(1.5px 1.5px at 20px 30px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 40px 70px, #38bdf8, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 90px 40px, #facc15, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 160px 120px, #ffffff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 230px 30px, #a855f7, rgba(0,0,0,0)),
    radial-gradient(1.5px 1.5px at 290px 80px, #38bdf8, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 320px 160px, #ffffff, rgba(0,0,0,0));
  background-repeat: repeat;
  background-size: 340px 250px;
  opacity: 0.85;
  pointer-events: none;
}