/* Custom styles that complement Tailwind */

/* Gradient text utility */
.text-gradient {
  background: linear-gradient(135deg, #f1f5f9 0%, #60a5fa 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-accent {
  background: linear-gradient(135deg, #60a5fa, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Slide transitions */
.slide-enter {
  animation: slideIn 0.45s ease forwards;
}

.slide-leave {
  animation: slideOut 0.35s ease forwards;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideOut {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(-50px);
  }
}

/* Reverse direction */
.slide-enter-reverse {
  animation: slideInReverse 0.45s ease forwards;
}

.slide-leave-reverse {
  animation: slideOutReverse 0.35s ease forwards;
}

@keyframes slideInReverse {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideOutReverse {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(50px);
  }
}

/* Quote decoration */
.quote-mark::before {
  content: '\201C';
  position: absolute;
  top: -30px;
  left: -10px;
  font-size: 5rem;
  line-height: 1;
  opacity: 0.3;
}

/* Bullet list custom markers */
.slide-bullet {
  position: relative;
  padding-left: 1.75rem;
}

.slide-bullet::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: #3b82f6;
}

/* Progress bar transition */
.progress-bar {
  transition: width 0.4s ease;
}

/* Overview grid thumbnail */
.overview-thumb {
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.overview-thumb:hover {
  transform: scale(1.04);
}

/* Navigation arrows auto-hide */
.nav-arrows {
  opacity: 0;
  transition: opacity 0.3s ease;
}

body:hover .nav-arrows {
  opacity: 1;
}

/* Code highlighting colors */
.code-keyword { color: #ff7b72; }
.code-string { color: #a5d6ff; }
.code-comment { color: #8b949e; font-style: italic; }
.code-function { color: #d2a8ff; }
.code-number { color: #79c0ff; }