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

:root {
  --bg-dark: #1a1a2e;
  --bg-medium: #16213e;
  --bg-light: #0f3460;
  --accent: #e94560;
  --accent-green: #2ecc71;
  --accent-gold: #f39c12;
  --text-primary: #ecf0f1;
  --text-secondary: #bdc3c7;
  --text-muted: #7f8c8d;
  --card-bg: #2c3e50;
  --card-border: #34495e;
  --success: #27ae60;
  --danger: #c0392b;
  --star-filled: #f1c40f;
  --star-empty: #555;
}

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

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

button {
  cursor: pointer;
  border: none;
  padding: 10px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
}

button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

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

.btn-primary:hover {
  background: #d63851;
}

.btn-secondary {
  background: var(--bg-light);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

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

.btn-small {
  padding: 6px 12px;
  font-size: 12px;
}

input, select {
  padding: 10px 14px;
  border: 1px solid var(--card-border);
  border-radius: 6px;
  background: var(--card-bg);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

input:focus {
  border-color: var(--accent);
}

.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
}

.screen-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  width: 100%;
  max-width: 1200px;
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  animation: fadeIn 0.3s;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

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

@keyframes goalFlash {
  0%, 100% { background: transparent; }
  50% { background: rgba(46, 204, 113, 0.2); }
}