/* === TUTORIAL MENU OVERLAY === */

.tutorial-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.tutorial-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  animation: tutorialMenuFadeIn 0.2s ease-out;
}

@keyframes tutorialMenuFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* === PANEL === */

.tutorial-menu-panel {
  position: relative;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.98) 0%, rgba(30, 41, 59, 0.98) 100%);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 20px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  width: 90vw;
  max-width: 900px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  backdrop-filter: blur(12px);
  animation: tutorialMenuSlideIn 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes tutorialMenuSlideIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* === HEADER === */

.tutorial-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.tutorial-menu-title {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.tutorial-menu-icon {
  width: 32px;
  height: 32px;
  color: rgba(59, 130, 246, 0.9);
}

.tutorial-menu-title h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 600;
  background: linear-gradient(120deg, #60a5fa 0%, #818cf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tutorial-menu-close {
  background: transparent;
  border: none;
  color: rgba(148, 163, 184, 0.8);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: all 0.2s ease;
}

.tutorial-menu-close:hover {
  background: rgba(148, 163, 184, 0.1);
  color: rgba(226, 232, 240, 1);
  transform: scale(1.1);
}

/* === CONTENT === */

.tutorial-menu-content {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
  min-height: 0;
}

/* === LIST VIEW === */

.tutorial-menu-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tutorial-card {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.15);
  border-radius: 14px;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}

.tutorial-card:hover {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(59, 130, 246, 0.4);
  transform: translateX(4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.tutorial-card-interactive {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(99, 102, 241, 0.15) 100%);
  border-color: rgba(59, 130, 246, 0.4);
}

.tutorial-card-interactive:hover {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.25) 0%, rgba(99, 102, 241, 0.25) 100%);
  border-color: rgba(59, 130, 246, 0.6);
}

.tutorial-card-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(59, 130, 246, 0.1);
  border-radius: 12px;
}

.tutorial-card-content {
  flex: 1;
  min-width: 0;
}

.tutorial-card-content h3 {
  margin: 0 0 0.5rem 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: rgba(226, 232, 240, 0.95);
}

.tutorial-card-content p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.5;
  color: rgba(148, 163, 184, 0.9);
}

.tutorial-card-btn {
  padding: 0.625rem 1.5rem;
  background: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);
  border: none;
  border-radius: 10px;
  color: white;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.tutorial-card-btn:hover {
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
  transform: translateY(-2px);
}

.tutorial-card-btn:active {
  transform: translateY(0);
}

/* === SEPARATOR === */

.tutorial-menu-separator {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0;
  color: rgba(148, 163, 184, 0.6);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tutorial-menu-separator::before,
.tutorial-menu-separator::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(148, 163, 184, 0.2),
    transparent
  );
}

/* === GUIDE VIEW === */

.tutorial-guide-view {
  animation: guideSlideIn 0.3s ease-out;
}

@keyframes guideSlideIn {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.tutorial-guide-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(51, 65, 85, 0.5);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 8px;
  color: rgba(226, 232, 240, 0.9);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 1.5rem;
}

.tutorial-guide-back:hover {
  background: rgba(51, 65, 85, 0.7);
  border-color: rgba(148, 163, 184, 0.3);
  transform: translateX(-4px);
}

.tutorial-guide-header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.tutorial-guide-icon {
  font-size: 4rem;
  margin-bottom: 1rem;
}

.tutorial-guide-header h2 {
  margin: 0 0 0.5rem 0;
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(120deg, #60a5fa 0%, #818cf8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tutorial-guide-subtitle {
  margin: 0;
  font-size: 1.125rem;
  color: rgba(148, 163, 184, 0.9);
  line-height: 1.6;
}

.tutorial-guide-content {
  color: rgba(203, 213, 225, 0.95);
  line-height: 1.7;
}

.tutorial-guide-content h3 {
  margin: 2rem 0 1rem 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: rgba(226, 232, 240, 1);
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(59, 130, 246, 0.3);
}

.tutorial-guide-content h4 {
  margin: 1.5rem 0 0.75rem 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: rgba(147, 197, 253, 0.95);
}

.tutorial-guide-content p {
  margin: 0.75rem 0;
  font-size: 0.95rem;
}

.tutorial-guide-content strong {
  color: rgba(226, 232, 240, 1);
  font-weight: 600;
}

.tutorial-guide-content ul,
.tutorial-guide-content ol {
  margin: 0.75rem 0;
  padding-left: 1.5rem;
}

.tutorial-guide-content li {
  margin: 0.5rem 0;
  font-size: 0.95rem;
}

.tutorial-guide-content code {
  padding: 0.2rem 0.4rem;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 4px;
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  color: rgba(147, 197, 253, 0.95);
}

.tutorial-guide-content kbd {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  background: rgba(51, 65, 85, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.3);
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  font-family: 'Courier New', monospace;
  font-size: 0.875rem;
  color: rgba(226, 232, 240, 0.95);
  font-weight: 600;
}

/* === GUIDE SECTIONS === */

.guide-section {
  margin-bottom: 2.5rem;
}

.guide-card {
  background: rgba(15, 23, 42, 0.5);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 12px;
  padding: 1.5rem;
  margin: 1rem 0;
}

.guide-tip {
  background: rgba(34, 197, 94, 0.08);
  border-left: 3px solid rgba(34, 197, 94, 0.5);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

.guide-example {
  background: rgba(168, 85, 247, 0.08);
  border-left: 3px solid rgba(168, 85, 247, 0.5);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
}

/* === RESPONSIVE === */

@media (max-width: 768px) {
  .tutorial-menu-panel {
    width: 95vw;
    max-height: 90vh;
  }

  .tutorial-menu-header {
    padding: 1rem 1.25rem;
  }

  .tutorial-menu-title h2 {
    font-size: 1.25rem;
  }

  .tutorial-menu-content {
    padding: 1.25rem;
  }

  .tutorial-card {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .tutorial-card-btn {
    width: 100%;
  }

  .tutorial-guide-header h2 {
    font-size: 1.5rem;
  }
}