@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
  --gb-lightest: #9BBC0F;
  --gb-light: #8BAC0F;
  --gb-dark: #306230;
  --gb-darkest: #0F380F;
  --device-body: #2a2a2e;
  --device-body-light: #3a3a40;
  --device-accent: #1a1a1e;
  --device-btn: #4a4a52;
  --device-btn-active: #3a3a42;
}

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

body {
  background: #111;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  font-family: 'Press Start 2P', monospace;
  overflow: hidden;
}

#device {
  background: var(--device-body);
  border-radius: 24px 24px 40px 40px;
  padding: 16px 20px 24px;
  box-shadow:
    0 0 0 3px var(--device-accent),
    0 8px 32px rgba(0,0,0,0.6),
    inset 0 1px 0 rgba(255,255,255,0.05);
  position: relative;
  width: 360px;
  user-select: none;
}

#device-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 8px 12px;
}

#device-label {
  color: var(--gb-light);
  font-size: 14px;
  letter-spacing: 4px;
  text-shadow: 0 0 8px rgba(139, 172, 15, 0.4);
}

#device-model {
  color: #555;
  font-size: 8px;
  letter-spacing: 2px;
}

#screen-frame {
  background: var(--device-accent);
  border-radius: 8px;
  padding: 8px;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.5);
}

#screen-bezel {
  background: var(--gb-lightest);
  border-radius: 4px;
  padding: 2px;
  position: relative;
  overflow: hidden;
}

#screen-bezel::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 10;
}

#game-container {
  width: 304px;
  height: 304px;
  position: relative;
  image-rendering: pixelated;
}

#game-container canvas {
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

#controls {
  padding: 16px 8px 8px;
}

#btn-row-top {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.device-btn {
  background: var(--device-btn);
  border: none;
  border-radius: 50%;
  width: 72px;
  height: 72px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  box-shadow:
    0 3px 0 var(--device-accent),
    0 4px 8px rgba(0,0,0,0.3);
  transition: all 0.08s ease;
  font-family: 'Press Start 2P', monospace;
  position: relative;
}

.device-btn:active {
  transform: translateY(2px);
  box-shadow:
    0 1px 0 var(--device-accent),
    0 2px 4px rgba(0,0,0,0.3);
  background: var(--device-btn-active);
}

.device-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-icon {
  color: var(--gb-light);
  font-size: 16px;
  font-weight: bold;
}

.btn-label {
  color: #888;
  font-size: 6px;
  letter-spacing: 1px;
}

#info-panel {
  padding: 8px;
  margin-top: 4px;
}

#stats-display {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 12px;
  color: #777;
  font-size: 7px;
  padding: 4px 8px;
}

.stat-item {
  display: flex;
  justify-content: space-between;
  padding: 2px 0;
}

.stat-label {
  color: #555;
}

.stat-value {
  color: var(--gb-light);
}

.stat-full {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--gb-light);
  font-size: 8px;
  padding: 4px 0;
  border-bottom: 1px solid #333;
  margin-bottom: 2px;
}

/* Upgrade Panel */
#upgrade-panel {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--device-body);
  border-radius: 0 0 40px 40px;
  padding: 12px 16px 24px;
  z-index: 20;
  box-shadow: 0 -4px 16px rgba(0,0,0,0.4);
  transition: transform 0.3s ease, opacity 0.3s ease;
  max-height: 70%;
  overflow-y: auto;
}

#upgrade-panel.hidden {
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
}

#upgrade-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--gb-light);
  font-size: 10px;
  letter-spacing: 2px;
  padding-bottom: 8px;
  border-bottom: 1px solid #444;
  margin-bottom: 8px;
}

#close-upgrades {
  background: none;
  border: none;
  color: #888;
  font-size: 20px;
  cursor: pointer;
  font-family: 'Press Start 2P', monospace;
}

#close-upgrades:hover {
  color: var(--gb-light);
}

.upgrade-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px;
  margin-bottom: 4px;
  background: var(--device-accent);
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s;
}

.upgrade-item:hover {
  background: #222;
}

.upgrade-item.cannot-afford {
  opacity: 0.5;
}

.upgrade-info {
  flex: 1;
}

.upgrade-name {
  color: var(--gb-light);
  font-size: 7px;
  margin-bottom: 4px;
}

.upgrade-desc {
  color: #666;
  font-size: 6px;
}

.upgrade-cost {
  color: var(--gb-lightest);
  font-size: 8px;
  white-space: nowrap;
  margin-left: 8px;
}

.upgrade-level {
  color: #555;
  font-size: 6px;
  margin-left: 8px;
}

/* Toast */
#toast-container {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--gb-darkest);
  color: var(--gb-lightest);
  padding: 8px 16px;
  border-radius: 4px;
  font-family: 'Press Start 2P', monospace;
  font-size: 8px;
  border: 1px solid var(--gb-dark);
  animation: toastIn 0.3s ease, toastOut 0.3s ease 2s forwards;
  text-align: center;
}

@keyframes toastIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes toastOut {
  from { opacity: 1; }
  to { opacity: 0; transform: translateY(-10px); }
}

/* Scrollbar for upgrade panel */
#upgrade-panel::-webkit-scrollbar {
  width: 4px;
}

#upgrade-panel::-webkit-scrollbar-track {
  background: var(--device-accent);
}

#upgrade-panel::-webkit-scrollbar-thumb {
  background: var(--gb-dark);
  border-radius: 2px;
}

/* Mobile responsive */
@media (max-height: 700px) {
  #device {
    transform: scale(0.85);
    transform-origin: center center;
  }
}

@media (max-width: 380px) {
  #device {
    width: 100vw;
    border-radius: 0;
    min-height: 100vh;
  }
}