/* ========== VISUAL SKILL TREE SYSTEM ========== */
/* Complete styling for the visual skill tree system */

/* Respec button */
.skill-tree-respec-btn {
  width: 100%;
  padding: 12px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ff4444 0%, #cc0000 100%);
  color: white;
  border: 2px solid #ff6666;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.skill-tree-respec-btn:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff6666 0%, #ff2222 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(255, 68, 68, 0.4);
}

.skill-tree-respec-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: linear-gradient(135deg, #666 0%, #444 100%);
  border-color: #555;
}

/* Main container for all branches */
.skill-tree-visual-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 15px;
}

/* Individual branch */
.skill-tree-branch {
  background: var(--bg-card);
  border-radius: 12px;
  padding: 15px;
  position: relative;
  border: 2px solid var(--branch-color);
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.3);
  transition: all 0.3s ease;
}

.skill-tree-branch:hover {
  box-shadow: 0 0 25px var(--branch-color);
  transform: translateY(-2px);
}

/* Branch-specific colors */
.skill-branch-power {
  --branch-color: #ff4444;
  --branch-glow: rgba(255, 68, 68, 0.4);
}

.skill-branch-wealth {
  --branch-color: #ffd700;
  --branch-glow: rgba(255, 215, 0, 0.4);
}

.skill-branch-mastery {
  --branch-color: #00d4ff;
  --branch-glow: rgba(0, 212, 255, 0.4);
}

/* Branch header */
.skill-tree-branch-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--branch-color);
}

.skill-tree-branch-icon {
  font-size: 2rem;
  filter: drop-shadow(0 0 8px var(--branch-glow));
  animation: iconPulse 2s ease-in-out infinite;
}

@keyframes iconPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.skill-tree-branch-info {
  flex: 1;
}

.skill-tree-branch-name {
  font-size: 1.1rem;
  font-weight: bold;
  color: var(--branch-color);
  text-shadow: 0 0 10px var(--branch-glow);
  margin-bottom: 4px;
}

.skill-tree-branch-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.3;
}

/* Nodes container */
.skill-tree-nodes-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  z-index: 2;
  padding: 10px 0;
}

/* SVG connections */
.skill-tree-connections {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 1;
}

.skill-tree-connection {
  stroke: var(--border-subtle);
  stroke-width: 3;
  fill: none;
  opacity: 0.3;
  transition: all 0.3s ease;
}

.skill-tree-connection.connection-active {
  stroke: var(--branch-color);
  opacity: 1;
  filter: drop-shadow(0 0 4px var(--branch-glow));
  animation: connectionPulse 2s ease-in-out infinite;
}

@keyframes connectionPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Individual skill nodes */
.skill-tree-node {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  background: var(--bg-panel);
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.3s ease;
  position: relative;
  min-height: 60px;
}

/* Node types - different sizes and styles */
.skill-node-minor {
  border-left: 4px solid #888;
}

.skill-node-major {
  border-left: 4px solid #a855f7;
  background: linear-gradient(90deg, rgba(168, 85, 247, 0.1) 0%, var(--bg-panel) 100%);
}

.skill-node-keystone {
  border-left: 4px solid var(--branch-color);
  background: linear-gradient(90deg, var(--branch-glow) 0%, var(--bg-panel) 100%);
  box-shadow: inset 0 0 20px var(--branch-glow);
}

/* Node states */
.skill-node-locked {
  opacity: 0.4;
  cursor: not-allowed;
  filter: grayscale(80%);
}

.skill-node-available {
  border-color: var(--accent-gold);
  animation: nodeAvailable 1.5s ease-in-out infinite;
  cursor: pointer;
}

@keyframes nodeAvailable {
  0%, 100% {
    box-shadow: 0 0 0 rgba(255, 215, 0, 0);
    border-color: var(--accent-gold);
  }
  50% {
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.6);
    border-color: #ffeb3b;
  }
}

.skill-node-unlocked {
  background: linear-gradient(135deg, rgba(76, 175, 80, 0.2) 0%, var(--bg-panel) 100%);
  border-color: var(--accent-green);
  box-shadow: 0 0 10px rgba(76, 175, 80, 0.3);
}

.skill-node-unlocked .skill-node-icon {
  filter: drop-shadow(0 0 6px rgba(76, 175, 80, 0.8));
}

/* Node hover effects */
.skill-tree-node:hover:not(.skill-node-locked) {
  transform: translateX(5px);
  border-color: var(--branch-color);
  background: linear-gradient(90deg, var(--branch-glow) 0%, var(--bg-panel) 100%);
}

.skill-tree-node:hover:not(.skill-node-locked) .skill-node-tooltip {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* Node content */
.skill-node-icon {
  font-size: 1.8rem;
  min-width: 40px;
  text-align: center;
  transition: all 0.3s ease;
}

.skill-node-name {
  flex: 1;
  font-size: 0.9rem;
  font-weight: bold;
  color: var(--text-primary);
  line-height: 1.2;
}

.skill-node-cost {
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--accent-gold);
  min-width: 50px;
  text-align: right;
  padding: 4px 8px;
  background: rgba(255, 215, 0, 0.1);
  border-radius: 4px;
}

.skill-node-unlocked .skill-node-cost {
  color: var(--accent-green);
  background: rgba(76, 175, 80, 0.1);
}

/* Tooltip */
.skill-node-tooltip {
  position: absolute;
  left: calc(100% + 15px);
  top: 50%;
  transform: translateY(-50%) translateX(-10px);
  background: rgba(26, 26, 46, 0.98);
  border: 2px solid var(--branch-color);
  border-radius: 8px;
  padding: 12px;
  min-width: 220px;
  max-width: 300px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  pointer-events: none;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.tooltip-header {
  font-size: 1rem;
  font-weight: bold;
  color: var(--branch-color);
  margin-bottom: 8px;
  text-shadow: 0 0 8px var(--branch-glow);
}

.tooltip-desc {
  font-size: 0.85rem;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.tooltip-cost {
  font-size: 0.8rem;
  color: var(--accent-gold);
  margin-bottom: 6px;
}

.tooltip-special {
  font-size: 0.8rem;
  color: var(--accent-purple);
  margin-bottom: 6px;
  font-style: italic;
  padding: 4px 8px;
  background: rgba(168, 85, 247, 0.1);
  border-radius: 4px;
  border-left: 3px solid var(--accent-purple);
}

.tooltip-requires {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

/* Responsive design */
@media (max-width: 1400px) {
  .skill-tree-visual-container {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .skill-tree-branch {
    max-width: 600px;
    margin: 0 auto;
  }

  .skill-node-tooltip {
    left: auto;
    right: calc(100% + 15px);
    transform: translateY(-50%) translateX(10px);
  }

  .skill-tree-node:hover:not(.skill-node-locked) .skill-node-tooltip {
    transform: translateY(-50%) translateX(0);
  }
}

@media (max-width: 768px) {
  .skill-tree-nodes-container {
    gap: 10px;
  }

  .skill-tree-node {
    padding: 8px;
    min-height: 50px;
  }

  .skill-node-icon {
    font-size: 1.4rem;
    min-width: 30px;
  }

  .skill-node-name {
    font-size: 0.8rem;
  }

  .skill-node-tooltip {
    position: fixed;
    left: 50% !important;
    right: auto !important;
    top: 50% !important;
    transform: translate(-50%, -50%) !important;
    max-width: 90vw;
  }
}

/* Keystone node special animation */
@keyframes keystoneGlow {
  0%, 100% {
    box-shadow: inset 0 0 20px var(--branch-glow), 0 0 0 rgba(255, 255, 255, 0);
  }
  50% {
    box-shadow: inset 0 0 30px var(--branch-glow), 0 0 20px var(--branch-glow);
  }
}

.skill-node-keystone.skill-node-unlocked {
  animation: keystoneGlow 2s ease-in-out infinite;
}

.skill-node-keystone .skill-node-icon {
  font-size: 2rem;
}

.skill-node-keystone .skill-node-name {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Synergy nodes special styling */
.skill-tree-node[data-synergy="true"] {
  border: 2px dashed var(--accent-purple);
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.2) 0%, var(--bg-panel) 100%);
}

.skill-tree-node[data-synergy="true"]:hover {
  border-style: solid;
  box-shadow: 0 0 20px rgba(168, 85, 247, 0.6);
}

/* Points display enhancement */
#skillTreePointsDisplay {
  font-size: 1.3rem;
  font-weight: bold;
  text-shadow: 0 0 10px var(--accent-cyan-glow);
  animation: pointsPulse 2s ease-in-out infinite;
}

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

/* Loading animation */
@keyframes skillTreeLoad {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.skill-tree-branch {
  animation: skillTreeLoad 0.5s ease-out;
}

.skill-tree-branch:nth-child(1) { animation-delay: 0.1s; }
.skill-tree-branch:nth-child(2) { animation-delay: 0.2s; }
.skill-tree-branch:nth-child(3) { animation-delay: 0.3s; }

/* Success feedback */
.skill-node-just-unlocked {
  animation: skillUnlock 0.6s ease-out;
}

@keyframes skillUnlock {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Connection drawing animation */
@keyframes drawConnection {
  from {
    stroke-dashoffset: 100;
  }
  to {
    stroke-dashoffset: 0;
  }
}

.skill-tree-connection {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: drawConnection 0.8s ease-out forwards;
}

/* Header enhancements */
.skill-tree-header {
  margin-bottom: 20px;
}

.skill-tree-header h3 {
  margin: 0 0 8px 0;
  color: var(--accent-purple);
  font-size: 1.3rem;
  text-shadow: 0 0 10px var(--accent-purple-glow);
}

.skill-tree-points {
  color: var(--accent-cyan);
  font-size: 1rem;
  margin-bottom: 15px;
  padding: 10px;
  background: rgba(0, 212, 255, 0.1);
  border-radius: 6px;
  border-left: 4px solid var(--accent-cyan);
}

/* Accessibility improvements */
.skill-tree-node:focus {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

.skill-tree-respec-btn:focus {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

/* Dark mode optimizations */
@media (prefers-color-scheme: dark) {
  .skill-tree-branch {
    background: rgba(18, 18, 31, 0.95);
  }

  .skill-node-tooltip {
    background: rgba(18, 18, 31, 0.98);
  }
}