* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body 
{
  background: #e2e8f0;
  color: #1e293b;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  overflow: hidden;
}

#game-app 
{
  position: relative;
  width: 1024px;
  height: 600px;
  border-radius: 12px;
  border: 2px solid #cbd5e1;
  box-shadow: 0 12px 32px rgb(0, 0, 0);
  overflow: hidden;
  background: #f8fafc;
}

canvas 
{
  display: block;
  background: #f8fafc;
}

.overlay-panel 
{
  position: absolute;
  inset: 0;
  background: rgba(248, 250, 252, 0.95);
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
  z-index: 10;
  transition: opacity 0.2s ease;
}

.title-primary 
{
  font-size: 3rem;
  letter-spacing: -0.5px;
  color: #0284c7;
  margin-bottom: 4px;
}

.title-secondary 
{
  font-size: 1.1rem;
  color: #c54d0c;
  letter-spacing: 4px;
  font-weight: 700;
  margin-bottom: 18px;
}

h2 
{
  font-size: 1.8rem;
  color: #0f172a;
  margin-bottom: 16px;
}

.description
 {
  font-size: 1rem;
  color: #3b4555;
  line-height: 1.6;
  max-width: 520px;
  margin-bottom: 24px;
}

.card-controls
 {
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  padding: 18px 24px;
  margin-bottom: 16px;
  width: 100%;
  max-width: 520px;
  box-shadow: 0 2px 8px rgba(6, 6, 6, 0.02);
}

.row-control 
{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid #f1f5f9;
}

.row-control:last-child
 {
  border-bottom: none;
}

.key-binding 
{
  font-weight: 700;
  color: #0284c7;
  background: #f0f9ff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
}

.key-desc 
{
  color: #334155;
  font-size: 0.95rem;
}

.tip-text 
{
  font-size: 0.88rem;
  color: #64748b;
  margin-bottom: 24px;
  max-width: 500px;
}

.sector-grid 
{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-bottom: 28px;
  width: 100%;
  max-width: 440px;
}

.sector-option
 {
  padding: 12px 0;
  font-size: 1rem;
  font-weight: 700;
  color: #334155;
  background: #ffffff;
  border: 2px solid #cbd5e1;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.sector-option:hover 
{
  border-color: #0284c7;
  color: #0284c7;
}

.sector-option.active 
{
  background: #0284c7;
  color: #ffffff;
  border-color: #0284c7;
}


.action-btn 
{
  padding: 12px 30px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #fefefe;
  background: #1c9fe0;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(8, 95, 138, 0.25);
  transition: transform 0.12s ease, background-color 0.12s ease;
}

.action-btn:hover 
{
  background: #0369a1;
  transform: translateY(-1px);
}

.launch-btn 
{
  background: #f6681c;
  box-shadow: 0 4px 12px rgba(160, 58, 3, 0.25);
}

.launch-btn:hover
 {
  background: #a13206;
}

.hidden {
  display: none !important;
}