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

:root {
  --bg-dark: #1a1a2e;
  --bg-panel: #16213e;
  --bg-card: #1f2940;
  --accent: #e94560;
  --accent-hover: #ff6b6b;
  --text: #eee;
  --text-dim: #aaa;
  --border: #333;
  --success: #4ade80;
  --warning: #fbbf24;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  min-height: 100vh;
  overflow: hidden;
}

.app {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

header {
  background: var(--bg-panel);
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 15px;
}

header h1 {
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--accent), #f39c12);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.toolbar {
  background: var(--bg-panel);
  padding: 10px 20px;
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
}

.tool-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.tool-group label {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.tool-btn {
  width: 40px;
  height: 40px;
  border: 2px solid var(--border);
  background: var(--bg-card);
  border-radius: 8px;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.2s;
}

.tool-btn:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}

.tool-btn.active {
  border-color: var(--accent);
  background: var(--accent);
}

.action-btn {
  padding: 8px 16px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.action-btn:hover {
  border-color: var(--accent);
  background: var(--accent);
}

.action-btn.danger:hover {
  background: #dc2626;
  border-color: #dc2626;
}

select, input[type="range"] {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
}

.main-content {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
}

.map-container {
  flex: 1;
  position: relative;
  background: #1e3a5f;
  overflow: hidden;
}

#mapCanvas, #cityCanvas {
  position: absolute;
  top: 0;
  left: 0;
}

#cityCanvas {
  z-index: 10;
}

.sidebar {
  width: 350px;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.3s;
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: 20;
}

.sidebar.open {
  transform: translateX(0);
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  font-size: 1.2rem;
}

.close-btn {
  width: 30px;
  height: 30px;
  border: none;
  background: transparent;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  border-radius: 4px;
}

.close-btn:hover {
  background: var(--accent);
}

.sidebar-content {
  flex: 1;
  overflow-y: auto;
  padding: 15px;
}

.city-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.city-card {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 12px;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}

.city-card:hover {
  border-color: var(--accent);
  transform: translateX(-5px);
}

.city-card h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 5px;
}

.city-card .stats {
  display: flex;
  gap: 15px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.city-card .resources {
  margin-top: 8px;
  font-size: 1rem;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.8);
  z-index: 100;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.modal.open {
  display: flex;
}

.modal-content {
  background: var(--bg-panel);
  border-radius: 12px;
  padding: 25px;
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content.modal-large {
  max-width: 800px;
}

.modal-content h2 {
  margin-bottom: 20px;
  color: var(--accent);
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 1rem;
}

.form-group textarea {
  resize: vertical;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-row {
  display: flex;
  gap: 15px;
}

.form-row .form-group {
  flex: 1;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 5px 10px;
  background: var(--bg-card);
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--text);
}

.checkbox-group input:checked + label,
.checkbox-group label:has(input:checked) {
  background: var(--accent);
}

.modal-buttons {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}

.btn-save, .btn-cancel, .btn-delete {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  transition: all 0.2s;
}

.btn-save {
  background: var(--accent);
  color: white;
}

.btn-save:hover {
  background: var(--accent-hover);
}

.btn-cancel {
  background: var(--bg-card);
  color: var(--text);
}

.btn-cancel:hover {
  background: #444;
}

.btn-delete {
  background: #dc2626;
  color: white;
}

.btn-delete:hover {
  background: #ef4444;
}

/* Timeline */
.timeline-controls {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
}

.timeline {
  max-height: 50vh;
  overflow-y: auto;
  padding-right: 10px;
}

.timeline-event {
  display: flex;
  gap: 15px;
  padding: 15px;
  background: var(--bg-card);
  border-radius: 8px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: all 0.2s;
  border-left: 4px solid var(--accent);
}

.timeline-event:hover {
  transform: translateX(5px);
}

.timeline-event.guerra { border-left-color: #dc2626; }
.timeline-event.paz { border-left-color: #4ade80; }
.timeline-event.desastre { border-left-color: #f97316; }
.timeline-event.descubrimiento { border-left-color: #3b82f6; }
.timeline-event.coronación { border-left-color: #eab308; }
.timeline-event.muerte { border-left-color: #6b7280; }
.timeline-event.nacimiento { border-left-color: #ec4899; }
.timeline-event.construcción { border-left-color: #8b5cf6; }
.timeline-event.magia { border-left-color: #06b6d4; }

.timeline-year {
  min-width: 80px;
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--accent);
}

.timeline-content h4 {
  margin-bottom: 5px;
}

.timeline-content .meta {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.timeline-content p {
  margin-top: 8px;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* City markers */
.city-marker {
  position: absolute;
  transform: translate(-50%, -50%);
  font-size: 24px;
  cursor: pointer;
  filter: drop-shadow(2px 2px 3px rgba(0,0,0,0.5));
  transition: transform 0.2s;
  z-index: 15;
}

.city-marker:hover {
  transform: translate(-50%, -50%) scale(1.3);
}

.city-marker .label {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  font-size: 12px;
  background: rgba(0,0,0,0.7);
  padding: 2px 6px;
  border-radius: 3px;
  color: white;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

/* Empty states */
.empty-state {
  text-align: center;
  color: var(--text-dim);
  padding: 40px 20px;
}

.empty-state p {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 768px) {
  .toolbar {
    padding: 10px;
    gap: 10px;
  }
  
  .sidebar {
    width: 100%;
  }
  
  .modal-content {
    padding: 15px;
  }
}