/* ================================
   COMPACT SKILLS SECTION
   ================================ */

.skills-section-compact {
  padding: var(--space-16) 0;
  background: linear-gradient(180deg, #f9fafb 0%, #ffffff 100%);
}

/* Workflow Tabs */
.workflow-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  margin: var(--space-12) 0 var(--space-8);
  flex-wrap: wrap;
}

.workflow-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: white;
  border: 2px solid #e5e7eb;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: var(--font-semibold);
  color: var(--text-secondary);
  position: relative;
  overflow: hidden;
}

.workflow-tab::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.workflow-tab:hover {
  border-color: var(--primary-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.workflow-tab.active {
  border-color: var(--primary-color);
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: var(--shadow-lg);
}

.workflow-tab.active::before {
  opacity: 0;
}

.tab-number {
  width: 24px;
  height: 24px;
  background: var(--primary-color);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  flex-shrink: 0;
}

.workflow-tab.active .tab-number {
  background: rgba(255, 255, 255, 0.2);
  color: white;
}

.tab-name {
  font-size: var(--text-sm);
  white-space: nowrap;
}

.tab-arrow {
  color: var(--text-secondary);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  margin: 0 var(--space-1);
}

/* Workflow Content */
.workflow-content {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-lg);
  border: 1px solid #e5e7eb;
  min-height: 200px;
}

.workflow-panel {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}

.workflow-panel.active {
  display: block;
}

.panel-title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  margin-bottom: var(--space-6);
  text-align: center;
}

/* Skills Row */
.skills-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: center;
  align-items: center;
}

/* Skill Chips */
.skill-chip {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: #f9fafb;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  transition: all 0.2s ease;
  cursor: default;
  position: relative;
  overflow: hidden;
}

.skill-chip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.skill-chip:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: white;
}

.skill-chip:hover::before {
  transform: scaleX(1);
}

/* Proficiency-based styling */
.skill-chip.expert {
  border-left: 4px solid #10b981;
}

.skill-chip.advanced {
  border-left: 4px solid #3b82f6;
}

.skill-chip.intermediate {
  border-left: 4px solid #8b5cf6;
}

.skill-chip img {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.skill-chip span {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.skill-chip .sub {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  font-weight: var(--font-normal);
  margin-left: var(--space-1);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */

/* Tablet: 768px - 1023px */
@media (max-width: 1023px) {
  .workflow-tabs {
    gap: var(--space-1);
    margin: var(--space-8) 0 var(--space-6);
  }
  
  .workflow-tab {
    padding: var(--space-2) var(--space-3);
  }
  
  .tab-number {
    width: 20px;
    height: 20px;
    font-size: var(--text-xs);
  }
  
  .tab-name {
    font-size: var(--text-xs);
  }
  
  .tab-arrow {
    font-size: var(--text-base);
    margin: 0 var(--space-1);
  }
  
  .workflow-content {
    padding: var(--space-6);
  }
  
  .panel-title {
    font-size: var(--text-lg);
    margin-bottom: var(--space-4);
  }
  
  .skills-row {
    gap: var(--space-3);
  }
  
  .skill-chip {
    padding: var(--space-2) var(--space-3);
  }
  
  .skill-chip img {
    width: 20px;
    height: 20px;
  }
  
  .skill-chip span {
    font-size: var(--text-xs);
  }
}

/* Mobile: < 768px */
@media (max-width: 767px) {
  .skills-section-compact {
    padding: var(--space-12) 0;
  }
  
  .workflow-tabs {
    flex-direction: column;
    gap: var(--space-2);
    margin: var(--space-6) 0 var(--space-4);
  }
  
  .tab-arrow {
    transform: rotate(90deg);
    margin: var(--space-1) 0;
  }
  
  .workflow-tab {
    width: 100%;
    max-width: 200px;
    justify-content: center;
  }
  
  .workflow-content {
    padding: var(--space-4);
    margin: 0 var(--space-2);
  }
  
  .panel-title {
    font-size: var(--text-base);
    margin-bottom: var(--space-3);
  }
  
  .skills-row {
    gap: var(--space-2);
    justify-content: flex-start;
  }
  
  .skill-chip {
    padding: var(--space-2);
    flex: 1;
    min-width: 120px;
    justify-content: center;
  }
  
  .skill-chip img {
    width: 18px;
    height: 18px;
  }
  
  .skill-chip span {
    font-size: var(--text-xs);
  }
  
  .skill-chip .sub {
    display: none; /* Hide sub-skills on mobile for space */
  }
}

/* Small mobile: < 480px */
@media (max-width: 479px) {
  .workflow-content {
    padding: var(--space-3);
    margin: 0 var(--space-1);
  }
  
  .skills-row {
    flex-direction: column;
    gap: var(--space-2);
  }
  
  .skill-chip {
    width: 100%;
    min-width: auto;
    justify-content: flex-start;
  }
}

/* ================================
   ACCESSIBILITY & FOCUS STATES
   ================================ */

.workflow-tab:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.skill-chip:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .workflow-tab,
  .skill-chip,
  .workflow-panel {
    transition: none;
  }
  
  .workflow-panel {
    animation: none;
  }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .workflow-tab {
    border-width: 3px;
  }
  
  .skill-chip {
    border-width: 3px;
  }
}