/* ============================================
   SKILLS SECTION STYLES - PROFESSIONAL & PASSIONATE
   ============================================ */
.skills-section {
  padding: 0.5rem;
  margin-bottom: 4rem;
  animation: fadeInUp 0.6s ease-out;
  animation-delay: 0.1s;
}

.skills-section .section-header {
  text-align: center;
  margin-bottom: 2rem;
}

.skills-section .section-title {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
  position: relative;
  display: inline-block;
}

.skills-section .section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 2px;
}

.skills-section .section-subtitle {
  color: var(--text-light);
  font-size: 1rem;
  margin-top: 1rem;
}

/* Skills View Toggle */
.skills-view-toggle {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.skills-view-toggle .toggle-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 10px;
  color: var(--text-light);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
}

.skills-view-toggle .toggle-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.skills-view-toggle .toggle-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.skills-view-toggle .toggle-btn i {
  width: 18px;
  height: 18px;
}

/* Skills Container */
.skills-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Category Groups */
.skills-category-group {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 0.6rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  position: relative;
  overflow: visible;
}

.skills-category-group::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.skills-category-group:hover {
  box-shadow: 0 10px 40px rgba(99, 102, 241, 0.15);
  transform: translateY(-2px);
}

.skills-category-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.75rem;
}

.skills-category-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.skills-category-icon i {
  width: 24px;
  height: 24px;
}

.skills-category-header h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin: 0;
}

.skills-category-header span {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-left: auto;
  background: var(--bg-secondary);
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
}

/* ===============================
   CARD VIEW STYLES (Default)
   =============================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

/* Individual Skill Card */
.skill-card {
  background: var(--bg-secondary);
  border-radius: 16px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border: 2px solid transparent;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  padding: 2px;
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.skill-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s ease;
}

.skill-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2);
  border-color: rgba(99, 102, 241, 0.2);
}

.skill-card:hover::before {
  opacity: 1;
}

.skill-card:hover::after {
  left: 100%;
}

.skill-card-icon {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(99, 102, 241, 0.05));
  color: var(--primary);
  margin-bottom: 1rem;
  transition: all 0.4s ease;
  position: relative;
}

.skill-card-icon::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.skill-card:hover .skill-card-icon {
  transform: scale(1.1) rotate(5deg);
  color: white;
}

.skill-card:hover .skill-card-icon::before {
  opacity: 1;
}

.skill-card-icon i {
  width: 32px;
  height: 32px;
}

.skill-card-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.5rem 0;
  transition: color 0.3s ease;
}

.skill-card:hover .skill-card-name {
  color: var(--primary);
}

.skill-card-category {
  font-size: 0.85rem;
  color: var(--text-light);
  margin: 0;
}

.skill-card-proficiency {
  margin-top: 1rem;
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.skill-card-proficiency .proficiency-label {
  display: block;
  text-align: right;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  width: fit-content;
  flex-shrink: 0;
}

.skill-card-proficiency .proficiency-bar {
  flex: 1;
  width: auto;
  height: 12px;
  background: var(--border);
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.skill-card-proficiency .proficiency-fill {
  height: 100%;
  border-radius: 6px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.skill-card-proficiency .proficiency-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to bottom, rgba(255,255,255,0.25), transparent);
  border-radius: 6px 6px 0 0;
}

/* ===============================
   LIST VIEW STYLES
   =============================== */
.skills-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  overflow: visible;
}

.skill-list-item {
  background: var(--bg-secondary);
  border-radius: 14px;
  padding: 1.25rem 3rem 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  border: 2px solid transparent;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  cursor: pointer;
}

.skill-list-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--secondary));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.skill-list-item::after {
  content: '';
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  opacity: 0;
  transition: all 0.3s ease;
}

.skill-list-item:hover {
  transform: translateX(8px);
  border-color: rgba(99, 102, 241, 0.3);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.1);
}

.skill-list-item:hover::before {
  opacity: 1;
}

.skill-list-item:hover::after {
  opacity: 1;
}

.skill-list-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(99, 102, 241, 0.05));
  color: var(--primary);
  flex-shrink: 0;
  transition: all 0.4s ease;
}

.skill-list-item:hover .skill-list-icon {
  background: var(--primary);
  color: white;
  transform: scale(1.1);
}

.skill-list-icon i {
  width: 24px;
  height: 24px;
}

.skill-list-info {
  flex: 1;
  min-width: 0;
}

.skill-list-name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.25rem 0;
  transition: color 0.3s ease;
}

.skill-list-item:hover .skill-list-name {
  color: var(--primary);
}

.skill-list-category {
  font-size: 0.85rem;
  color: var(--text-light);
  margin: 0;
}

.skill-list-proficiency {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  min-width: 450px;
}

.skill-list-proficiency .proficiency-bar {
  width: 100%;
  height: 10px;
  background: var(--border);
  border-radius: 5px;
  position: relative;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

.skill-list-proficiency .proficiency-fill {
  height: 100%;
  border-radius: 5px;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  min-width: 250px;
}

.skill-list-proficiency .proficiency-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 50%;
  background: linear-gradient(to bottom, rgba(255,255,255,0.25), transparent);
  border-radius: 5px 5px 0 0;
}

.skill-list-proficiency .proficiency-label {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

.skill-list-proficiency .proficiency-pin {
  position: absolute;
  top: 50%;
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, var(--accent), #f97316);
  border-radius: 50% 50% 50% 0;
  transform: translateY(-50%) rotate(-45deg) translateX(50%);
  opacity: 0;
  transition: opacity 0.2s ease;
  box-shadow: 2px 2px 4px rgba(245, 158, 11, 0.5);
  z-index: 20;
  pointer-events: none;
  right: 0;
}

.skill-list-proficiency .proficiency-bar:hover .proficiency-pin,
.skill-list-proficiency:hover .proficiency-pin {
  opacity: 1;
}

/* ===============================
   PERCENTAGE DISPLAY STYLES
   =============================== */
.proficiency-percentage {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text);
  background: var(--bg-secondary);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  min-width: 42px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* ===============================
   PROFICIENCY COLORS
   =============================== */
.proficiency-fill.beginner {
  background: linear-gradient(90deg, #94a3b8, #64748b);
}

.proficiency-label.beginner {
  background: linear-gradient(90deg, #94a3b8, #64748b);
  color: #ffffff;
}

.proficiency-fill.intermediate {
  background: linear-gradient(90deg, #3b82f6, #2563eb);
}

.proficiency-label.intermediate {
  background: linear-gradient(90deg, #3b82f6, #2563eb);
  color: #ffffff;
}

.proficiency-fill.advanced {
  background: linear-gradient(90deg, var(--primary), #818cf8);
}

.proficiency-label.advanced {
  background: linear-gradient(90deg, var(--primary), #818cf8);
  color: #ffffff;
}

.proficiency-fill.expert {
  background: linear-gradient(90deg, var(--secondary), #34d399);
}

.proficiency-label.expert {
  background: linear-gradient(90deg, var(--secondary), #34d399);
  color: #ffffff;
}

/* ===============================
   ANIMATIONS
   =============================== */
@keyframes skillCardEnter {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes skillGlow {
  0%, 100% {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.3);
  }
  50% {
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.6);
  }
}

@keyframes progressFill {
  from {
    width: 0;
  }
}

.skill-card {
  animation: skillCardEnter 0.6s ease-out backwards;
}

.skill-card:nth-child(1) { animation-delay: 0.05s; }
.skill-card:nth-child(2) { animation-delay: 0.1s; }
.skill-card:nth-child(3) { animation-delay: 0.15s; }
.skill-card:nth-child(4) { animation-delay: 0.2s; }
.skill-card:nth-child(5) { animation-delay: 0.25s; }
.skill-card:nth-child(6) { animation-delay: 0.3s; }
.skill-card:nth-child(7) { animation-delay: 0.35s; }
.skill-card:nth-child(8) { animation-delay: 0.4s; }
.skill-card:nth-child(9) { animation-delay: 0.45s; }
.skill-card:nth-child(10) { animation-delay: 0.5s; }
.skill-card:nth-child(11) { animation-delay: 0.55s; }
.skill-card:nth-child(12) { animation-delay: 0.6s; }

.skill-list-item {
  animation: skillCardEnter 0.5s ease-out backwards;
}

.skill-list-item:nth-child(1) { animation-delay: 0.03s; }
.skill-list-item:nth-child(2) { animation-delay: 0.06s; }
.skill-list-item:nth-child(3) { animation-delay: 0.09s; }
.skill-list-item:nth-child(4) { animation-delay: 0.12s; }
.skill-list-item:nth-child(5) { animation-delay: 0.15s; }
.skill-list-item:nth-child(6) { animation-delay: 0.18s; }
.skill-list-item:nth-child(7) { animation-delay: 0.21s; }
.skill-list-item:nth-child(8) { animation-delay: 0.24s; }
.skill-list-item:nth-child(9) { animation-delay: 0.27s; }
.skill-list-item:nth-child(10) { animation-delay: 0.3s; }

/* Animate progress bars on scroll */
.skill-card.proficiency-animated .proficiency-fill,
.skill-list-item.proficiency-animated .proficiency-fill {
  animation: progressFill 1.5s ease-out forwards;
}

/* Hover effect for skill cards - Passionate glow */
.skill-card:hover .skill-card-icon {
  animation: skillGlow 1s ease-in-out infinite;
}

/* Category hover effect */
.skills-category-group:hover .skills-category-icon {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

/* ===============================
   RESPONSIVE DESIGN
   =============================== */
@media (max-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .skills-section .section-title {
    font-size: 1.75rem;
  }
  
  .skills-category-group {
    padding: 0.5rem;
  }
  
  .skills-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.75rem;
  }
  
  .skill-card {
    padding: 1.25rem;
  }
  
  .skill-card-icon {
    width: 56px;
    height: 56px;
  }
  
  .skill-card-icon i {
    width: 28px;
    height: 28px;
  }
  
  .skill-list-item {
    flex-wrap: wrap;
    padding: 1rem 1.25rem;
  }
  
  .skill-list-proficiency {
    display: flex;
    width: 100%;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
    padding-top: 0.5rem;
    min-width: 0;
  }
  
  .skill-list-proficiency .proficiency-bar {
    flex: 1;
    margin-right: 1rem;
  }
  
  .skills-view-toggle {
    flex-wrap: wrap;
  }
  
  .skills-view-toggle .toggle-btn {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .skills-section .section-title {
    font-size: 1.5rem;
  }
  
  .skills-section {
    padding: 0.25rem;
  }
  
  .skills-category-group {
    padding: 0.5rem;
  }
  
  .skills-category-header {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
    padding-bottom: 0.5rem;
  }
  
  .skills-category-header span {
    margin-left: 0;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
  }
  
  .skill-list-item {
    flex-wrap: wrap;
    padding: 0.75rem;
  }
  
  .skill-list-proficiency {
    display: flex;
    width: 100%;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    margin-top: 0.5rem;
    gap: 0.5rem;
    min-width: 0;
  }
  
  .skill-list-proficiency .proficiency-bar {
    flex: 1;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    min-width: 0;
    overflow: hidden;
  }
  
  .skill-list-proficiency .proficiency-fill {
    height: 100%;
    min-width: 0;
    border-radius: 3px;
  }
  
  .skill-list-proficiency .proficiency-label {
    font-size: 0.7rem;
    text-align: right;
    white-space: nowrap;
    padding: 0;
    flex-shrink: 0;
  }
  
  .skill-list-proficiency .proficiency-pin {
    display: none;
  }
}

/* Hide/Show based on view type */
.skills-grid.hidden {
  display: none;
}

.skills-list.hidden {
  display: none;
}

/* Empty state */
.skills-empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-light);
}

.skills-empty-state i {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.skills-empty-state h3 {
  font-size: 1.25rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.skills-empty-state p {
  font-size: 0.95rem;
}