* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #1a1a3e 0%, #2d1b4e 50%, #1a2e3e 100%);
  min-height: 100vh;
  color: #333;
  display: flex;
  flex-direction: column;
}

.app-container {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
  width: 100%;
}

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

.header h1 {
  color: white;
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.header p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
}

h3 {
  font-size: 1.1rem;
  color: #333;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Kanban board */
.top-section {
  margin-bottom: 2rem;
}

.kanban-section {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  overflow-x: auto;
}

.kanban-board {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  min-width: 600px;
}

.kanban-column {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 0.75rem;
  min-height: 100px;
  transition: all 0.3s;
}

.kanban-column.active {
  background: #eef6ff;
  box-shadow: 0 0 0 2px #3498db;
}

.col-header {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #888;
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #e0e0e0;
}

.col-content {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.kanban-card {
  padding: 0.6rem 0.75rem;
  background: white;
  border-radius: 6px;
  border-left: 4px solid #3498db;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.3s;
}

.kanban-card.result {
  font-weight: 700;
  text-transform: uppercase;
}

/* Bottom content */
.bottom-content {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 2rem;
}

@media (max-width: 1000px) {
  .bottom-content {
    grid-template-columns: 1fr;
  }
}

.left-panel, .right-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.role-section,
.actions-section,
.controls-section,
.log-section,
.explainer-section {
  background: white;
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

/* Role selector */
.role-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.role-btn {
  padding: 0.6rem 0.75rem;
  border: 2px solid #e0e0e0;
  border-radius: 8px;
  background: white;
  color: #666;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.role-btn:hover { border-color: #999; }

.role-btn.active { border-color: #3498db; background: #e8f4fd; color: #2980b9; }

.role-btn[data-role="recruiter"].active { border-color: #3498db; background: #e8f4fd; color: #3498db; }
.role-btn[data-role="engineer"].active { border-color: #e67e22; background: #fef5e7; color: #e67e22; }
.role-btn[data-role="manager"].active { border-color: #8e44ad; background: #f4ecf7; color: #8e44ad; }
.role-btn[data-role="candidate"].active { border-color: #27ae60; background: #eafaf1; color: #27ae60; }

.role-desc {
  font-size: 0.85rem;
  color: #888;
  font-style: italic;
}

/* Action cards */
.actions-container {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.action-card {
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 1rem;
  transition: all 0.2s;
}

.action-card.enabled { border-color: #bee5eb; background: #f8f9fa; }
.action-card.disabled { opacity: 0.5; }

.action-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.4rem;
}

.action-name { font-weight: 600; font-size: 0.95rem; }

.action-role {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.action-desc {
  font-size: 0.8rem;
  color: #888;
  margin-bottom: 0.75rem;
}

.btn {
  padding: 0.6rem 1rem;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
}

.btn-action { background: #3498db; color: white; }
.btn-action:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.btn-action:disabled { background: #e0e0e0; color: #999; cursor: not-allowed; }
.btn-secondary { background: #e9ecef; color: #495057; width: auto; }
.btn-secondary:hover { background: #dee2e6; }

.no-actions {
  text-align: center;
  color: #999;
  padding: 2rem;
  font-size: 0.9rem;
}

/* Event log */
.log-section h3 { display: flex; justify-content: space-between; }

.btn-clear {
  background: none;
  border: none;
  color: #888;
  font-size: 0.8rem;
  cursor: pointer;
}

.btn-clear:hover { color: #333; }

.event-log {
  max-height: 250px;
  overflow-y: auto;
  font-size: 0.85rem;
  line-height: 1.6;
}

.log-entry {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 2px;
  background: #f8f9fa;
}

.log-entry.info { background: #f0fff4; color: #276749; }

.log-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Explainer */
.explainer-content {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #555;
}

.explainer-content p { margin-bottom: 0.75rem; }
.explainer-content ul { margin: 0.75rem 0; padding-left: 1.5rem; }
.explainer-content li { margin-bottom: 0.5rem; }
.explainer-content strong { color: #333; }