/**
 * RepSkills.ai - Retro Video Game Classroom Aesthetic
 *
 * 1980s-90s educational computer games inspired visual style
 * Playful elements: pixel-art icons, achievement feedback, level/XP metaphors
 * Classroom references: "Training Room", "Lesson Select", "Achievement Unlocked"
 */

/* Retro Pixel Font Usage */
.retro-text {
  font-family: var(--font-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Pixel Border Effect */
.pixel-border {
  border: 4px solid var(--color-access-white);
  box-shadow:
    0 0 0 2px var(--color-nightwatch),
    0 0 0 6px var(--color-primary);
  image-rendering: pixelated;
}

/* CRT Screen Effect */
.crt-effect {
  position: relative;
  overflow: hidden;
}

.crt-effect::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.15),
    rgba(0, 0, 0, 0.15) 1px,
    transparent 1px,
    transparent 2px
  );
  pointer-events: none;
  z-index: 10;
}

.crt-effect::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
  pointer-events: none;
  z-index: 11;
}

/* Scanline Animation */
@keyframes scanline {
  0% {
    transform: translateY(-100%);
  }
  100% {
    transform: translateY(100%);
  }
}

.scanline {
  position: absolute;
  width: 100%;
  height: 10px;
  background: rgba(255, 255, 255, 0.05);
  animation: scanline 8s linear infinite;
  pointer-events: none;
  z-index: 12;
}

/* Retro Button (arcade-style) */
.btn-retro {
  font-family: var(--font-accent);
  text-transform: uppercase;
  background: linear-gradient(180deg, var(--color-signal-yellow) 0%, #D69A00 100%);
  color: var(--color-nightwatch);
  border: 4px solid var(--color-nightwatch);
  box-shadow:
    0 4px 0 rgba(0, 0, 0, 0.3),
    inset 0 -2px 0 rgba(0, 0, 0, 0.2);
  text-shadow: 1px 1px 0 rgba(255, 255, 255, 0.5);
}

.btn-retro:hover {
  background: linear-gradient(180deg, #FFD633 0%, #E0A500 100%);
  transform: translateY(2px);
  box-shadow:
    0 2px 0 rgba(0, 0, 0, 0.3),
    inset 0 -2px 0 rgba(0, 0, 0, 0.2);
}

.btn-retro:active {
  transform: translateY(4px);
  box-shadow: none;
}

/* Difficulty Rating (stars/levels) */
.difficulty-rating {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.difficulty-star {
  width: 20px;
  height: 20px;
  background: var(--color-signal-yellow);
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.difficulty-star-empty {
  background: rgba(255, 255, 255, 0.2);
}

/* Level Badge */
.level-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--color-nightwatch);
  border: 3px solid var(--color-beacon-green);
  border-radius: var(--radius-md);
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  color: var(--color-beacon-green);
  text-shadow: 0 0 10px var(--color-beacon-green);
}

/* XP Bar */
.xp-bar-container {
  width: 100%;
  height: 24px;
  background: var(--color-nightwatch);
  border: 3px solid var(--color-access-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.xp-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-beacon-green) 0%, var(--color-signal-yellow) 100%);
  transition: width 1s ease-out;
  position: relative;
}

.xp-bar-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 10px,
    rgba(255, 255, 255, 0.1) 10px,
    rgba(255, 255, 255, 0.1) 20px
  );
}

.xp-bar-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  color: var(--color-access-white);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.8);
  z-index: 1;
}

/* Achievement Unlocked */
.achievement {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: linear-gradient(135deg, var(--color-nightwatch) 0%, #3D2B5F 100%);
  border: 3px solid var(--color-signal-yellow);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 20px rgba(255, 198, 26, 0.5);
  animation: achievement-popup 0.5s ease-out;
}

@keyframes achievement-popup {
  0% {
    transform: scale(0.8) translateY(20px);
    opacity: 0;
  }
  70% {
    transform: scale(1.05) translateY(-5px);
  }
  100% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.achievement-icon {
  width: 48px;
  height: 48px;
  background: var(--color-signal-yellow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  flex-shrink: 0;
}

.achievement-content {
  flex: 1;
}

.achievement-title {
  font-family: var(--font-accent);
  font-size: var(--text-lg);
  color: var(--color-signal-yellow);
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.achievement-description {
  font-size: var(--text-sm);
  color: var(--color-access-white);
  opacity: 0.9;
}

/* Blink Animation (retro cursor) */
@keyframes blink {
  0%, 50% {
    opacity: 1;
  }
  51%, 100% {
    opacity: 0;
  }
}

.blink {
  animation: blink 1s step-end infinite;
}

/* Glow Effect (neon text) */
.neon-glow {
  text-shadow:
    0 0 5px var(--color-beacon-green),
    0 0 10px var(--color-beacon-green),
    0 0 15px var(--color-beacon-green),
    0 0 20px var(--color-beacon-green);
}

/* Pixel-perfect Icons */
.pixel-icon {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}

/* Classroom/Education Theme */
.classroom-header {
  text-align: center;
  padding: var(--space-2xl);
  background: var(--color-nightwatch);
  border-bottom: 4px solid var(--color-signal-yellow);
}

.classroom-title {
  font-family: var(--font-accent);
  font-size: var(--text-4xl);
  color: var(--color-beacon-green);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  text-shadow: 0 0 10px var(--color-beacon-green);
}

.classroom-subtitle {
  font-family: var(--font-body);
  font-size: var(--text-lg);
  color: var(--color-access-white);
  opacity: 0.9;
}

/* Score Display (retro game style) */
.score-display {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-nightwatch);
  border: 3px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.score-label {
  font-family: var(--font-accent);
  font-size: var(--text-xs);
  color: var(--color-access-white);
  opacity: 0.7;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.score-value {
  font-family: var(--font-accent);
  font-size: var(--text-4xl);
  color: var(--color-signal-yellow);
  line-height: 1;
  text-shadow: 0 0 10px var(--color-signal-yellow);
}

/* Power-Up / Bonus Indicator */
.powerup {
  display: inline-block;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-beacon-green);
  color: var(--color-nightwatch);
  font-family: var(--font-accent);
  font-size: var(--text-sm);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
  }
  50% {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

/* 8-bit style confetti */
.confetti-particle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: var(--color-signal-yellow);
  animation: confetti-fall 3s ease-out forwards;
}

@keyframes confetti-fall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}