@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323:wght@400&display=swap');

:root {
  --px: 2px;
  --red: #ff3a3a;
  --orange: #ff8c00;
  --yellow: #ffe600;
  --green: #00ff88;
  --cyan: #00e5ff;
  --blue: #1a6fff;
  --purple: #cc44ff;
  --mars: #c1440e;
  --mars2: #e8722a;
  --dark: #0a0a0f;
  --darker: #050508;
  --panel: #111122;
  --panel2: #1a1a33;
  --border: #3344aa;
  --text: #e0e8ff;
  --dim: #667799;
}

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

body {
  background: var(--darker);
  color: var(--text);
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  overflow: hidden;
  width: 100vw; height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
}

canvas { display: block; }

#game-container {
  position: relative;
  width: 900px; height: 600px;
  border: 4px solid var(--border);
  box-shadow: 0 0 40px #1a6fff44, inset 0 0 40px #00000088;
  background: var(--dark);
  overflow: hidden;
}

/* PIXEL SCANLINES */
#game-container::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(0,0,0,0.08) 3px, rgba(0,0,0,0.08) 4px);
  pointer-events: none; z-index: 9999;
}

.screen {
  position: absolute; inset: 0;
  display: none;
  flex-direction: column;
  align-items: center; justify-content: center;
}
.screen.active { display: flex; }

/* =================== TITLE SCREEN =================== */
#screen-title {
  background: var(--darker);
}
#title-canvas { position: absolute; inset: 0; }
.title-content {
  position: relative; z-index: 10;
  display: flex; flex-direction: column; align-items: center; gap: 20px;
}
.title-logo {
  font-size: 32px; color: var(--orange);
  text-shadow: 4px 4px 0 #7a2000, 0 0 20px var(--orange);
  letter-spacing: 4px;
  animation: titlePulse 2s infinite;
}
.title-sub {
  font-size: 11px; color: var(--cyan);
  letter-spacing: 6px;
  text-shadow: 0 0 10px var(--cyan);
}
@keyframes titlePulse {
  0%,100% { text-shadow: 4px 4px 0 #7a2000, 0 0 20px var(--orange); }
  50% { text-shadow: 4px 4px 0 #7a2000, 0 0 40px var(--yellow); }
}
.pixel-btn {
  font-family: 'Press Start 2P', monospace;
  font-size: 10px;
  background: var(--panel);
  color: var(--yellow);
  border: 3px solid var(--yellow);
  padding: 10px 20px;
  cursor: pointer;
  text-shadow: 2px 2px 0 #7a5500;
  box-shadow: 4px 4px 0 #7a5500;
  transition: all 0.1s;
  image-rendering: pixelated;
}
.pixel-btn:hover {
  background: var(--yellow);
  color: var(--dark);
  transform: translate(-2px,-2px);
  box-shadow: 6px 6px 0 #7a5500;
}
.pixel-btn:active { transform: translate(2px,2px); box-shadow: 2px 2px 0 #7a5500; }
.pixel-btn.green { color: var(--green); border-color: var(--green); box-shadow: 4px 4px 0 #006633; text-shadow: 2px 2px 0 #006633; }
.pixel-btn.green:hover { background: var(--green); color: var(--dark); }
.pixel-btn.red { color: var(--red); border-color: var(--red); box-shadow: 4px 4px 0 #660000; text-shadow: 2px 2px 0 #660000; }
.pixel-btn.red:hover { background: var(--red); color: var(--dark); }
.pixel-btn.cyan { color: var(--cyan); border-color: var(--cyan); box-shadow: 4px 4px 0 #006677; text-shadow: 2px 2px 0 #006677; }
.pixel-btn.cyan:hover { background: var(--cyan); color: var(--dark); }
.pixel-btn.orange { color: var(--orange); border-color: var(--orange); box-shadow: 4px 4px 0 #7a3000; text-shadow: 2px 2px 0 #7a3000; }
.pixel-btn.orange:hover { background: var(--orange); color: var(--dark); }

.panel-box {
  background: var(--panel);
  border: 3px solid var(--border);
  padding: 16px;
  box-shadow: inset 0 0 20px #00000066, 4px 4px 0 #000033;
}

.section-title {
  font-size: 9px; color: var(--cyan);
  border-bottom: 2px solid var(--border);
  padding-bottom: 8px; margin-bottom: 12px;
  letter-spacing: 3px;
  text-shadow: 0 0 8px var(--cyan);
}

/* =================== LEVEL 1: MISSION PLANNING =================== */
#screen-l1 { background: var(--dark); padding: 10px 20px 8px; gap: 6px; justify-content: flex-start; padding-top: 10px; overflow: hidden; }
.mission-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 6px; width: 860px;
}
.mission-item {
  background: var(--panel);
  border: 3px solid var(--border);
  padding: 7px 10px;
  cursor: pointer;
  transition: all 0.1s;
  position: relative;
}
.mission-item:hover { border-color: var(--cyan); }
.mission-item.selected { border-color: var(--green); background: #112211; }
.mission-item.selected::after {
  content: '✓'; position: absolute; top: 4px; right: 8px;
  color: var(--green); font-size: 12px;
}
.mission-item-title { font-size: 7px; color: var(--yellow); margin-bottom: 3px; }
.mission-item-desc { font-family: 'VT323', monospace; font-size: 13px; color: var(--dim); line-height: 1.2; }
.mission-checklist {
  display: flex; gap: 6px; flex-wrap: wrap; justify-content: center;
}
.check-item {
  font-size: 6px; padding: 3px 6px;
  background: var(--panel2); border: 2px solid var(--border);
}
.check-item.done { border-color: var(--green); color: var(--green); }

/* =================== LEVEL 2: LAUNCH =================== */
#screen-l2 { background: var(--darker); }
#launch-canvas { position: absolute; inset: 0; }
.launch-ui {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 12px; z-index: 10;
}
.launch-btn {
  font-family: 'Press Start 2P', monospace; font-size: 8px;
  width: 80px; height: 50px;
  border: 3px solid; cursor: pointer;
  transition: all 0.1s;
  display: flex; align-items: center; justify-content: center;
  text-align: center; line-height: 1.4;
}
.launch-btn.inactive { background: #222; border-color: #444; color: #444; cursor: not-allowed; }
.launch-btn.ready { background: #112211; border-color: var(--green); color: var(--green); animation: btnPulse 1s infinite; }
.launch-btn.pressed { background: var(--green); border-color: var(--green); color: var(--dark); }
.launch-btn.error { background: #221111; border-color: var(--red); color: var(--red); animation: btnShake 0.3s; }
@keyframes btnPulse { 0%,100% { box-shadow: 0 0 8px currentColor; } 50% { box-shadow: 0 0 20px currentColor; } }
@keyframes btnShake { 0%,100% { transform: translateX(0); } 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }
.launch-status {
  position: absolute; top: 20px; left: 50%; transform: translateX(-50%);
  font-size: 9px; color: var(--cyan); z-index: 10;
  text-shadow: 0 0 10px var(--cyan); letter-spacing: 2px;
}
.countdown-display {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  font-size: 80px; color: var(--red);
  text-shadow: 0 0 40px var(--red);
  z-index: 10; display: none;
}

/* =================== LEVEL 3: ASTEROID FIELD =================== */
#screen-l3 { background: var(--darker); }
#asteroid-canvas { position: absolute; inset: 0; }
.asteroid-ui {
  position: absolute; top: 16px; left: 20px; right: 20px;
  display: flex; justify-content: space-between; z-index: 10;
}
.hud-box {
  background: #00000088; border: 2px solid var(--border);
  padding: 6px 10px; font-size: 8px;
}
.hud-label { color: var(--dim); margin-bottom: 4px; }
.hud-val { color: var(--cyan); }
.progress-bar-outer {
  width: 200px; height: 12px;
  background: #222; border: 2px solid var(--border); position: relative;
}
.progress-bar-inner {
  height: 100%; background: var(--green);
  transition: width 0.3s;
}
.asteroid-msg {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  font-size: 9px; color: var(--yellow); z-index: 10;
  text-shadow: 0 0 10px var(--yellow);
}

/* =================== LEVEL 4: ROVER =================== */
#screen-l4 { background: var(--mars); }
#rover-canvas { position: absolute; inset: 0; }
.rover-ui {
  position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 10px; z-index: 10;
}
.rover-btn {
  font-family: 'Press Start 2P', monospace; font-size: 7px;
  width: 90px; height: 44px;
  border: 3px solid var(--yellow); background: #331100;
  color: var(--yellow); cursor: pointer;
  transition: all 0.1s; text-align: center; padding: 4px;
}
.rover-btn:hover { background: #553300; }
.rover-btn:active { transform: scale(0.95); }
.rover-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.rover-hud {
  position: absolute; top: 10px; left: 10px; right: 10px;
  display: flex; justify-content: space-between; z-index: 10;
}
.oxy-bar {
  width: 120px; height: 10px; background: #222;
  border: 2px solid var(--cyan);
}
.oxy-fill { height: 100%; background: var(--cyan); transition: width 0.5s; }

/* MINIGAME */
#minigame-overlay {
  position: absolute; inset: 0; z-index: 20;
  background: #000000cc;
  display: none; flex-direction: column;
  align-items: center; justify-content: center; gap: 16px;
}
#minigame-overlay.active { display: flex; }
#minigame-canvas { border: 3px solid var(--orange); cursor: grab; }
#minigame-canvas:active { cursor: grabbing; }

/* UPGRADE SCREEN */
#upgrade-overlay {
  position: absolute; inset: 0; z-index: 20;
  background: #000000dd;
  display: none; flex-direction: column;
  align-items: center; justify-content: center; gap: 12px;
  padding: 20px;
}
#upgrade-overlay.active { display: flex; }
.upgrade-grid {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 8px;
  width: 760px;
}
.upgrade-card {
  background: var(--panel); border: 3px solid var(--border);
  padding: 10px; cursor: pointer; transition: all 0.1s;
}
.upgrade-card:hover { border-color: var(--yellow); }
.upgrade-card.maxed { border-color: var(--green); opacity: 0.7; cursor: default; }
.upgrade-card.selected-up { border-color: var(--yellow); background: #221100; }
.upgrade-name { font-size: 7px; color: var(--orange); margin-bottom: 4px; }
.upgrade-level { font-size: 6px; color: var(--dim); margin-bottom: 4px; }
.upgrade-cost { font-size: 7px; color: var(--yellow); }
.upgrade-stars { color: var(--yellow); font-size: 10px; }

/* =================== LEVEL 5: CAVE =================== */
#screen-l5 { background: var(--darker); }
#cave-canvas { position: absolute; inset: 0; }
.cave-hud {
  position: absolute; top: 10px; left: 10px; right: 10px;
  display: flex; justify-content: space-between; z-index: 10;
}
.artifact-count {
  font-size: 9px; color: var(--purple);
  text-shadow: 0 0 10px var(--purple);
}

/* =================== LEVEL 6: RETURN =================== */
#screen-l6 { background: var(--darker); }
#return-canvas { position: absolute; inset: 0; }

/* =================== LEVEL 7: SPLASHDOWN =================== */
#screen-l7 { background: var(--darker); }
#splash-canvas { position: absolute; inset: 0; }

/* =================== LEVEL 8: SCORE =================== */
#screen-l8 { background: var(--darker); padding: 20px; gap: 14px; }
.score-display {
  font-size: 36px; color: var(--yellow);
  text-shadow: 4px 4px 0 #7a5500, 0 0 30px var(--yellow);
}
.score-breakdown { display: flex; flex-direction: column; gap: 6px; }
.score-row { display: flex; justify-content: space-between; gap: 40px; font-size: 8px; }
.score-label { color: var(--dim); }
.score-val { color: var(--cyan); }
.leaderboard { width: 500px; }
.lb-row { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid var(--border); font-size: 8px; }
.lb-rank { color: var(--orange); width: 30px; }
.lb-name { color: var(--text); flex: 1; }
.lb-score { color: var(--yellow); }
.lb-row.highlight { background: #221100; }
#name-input {
  font-family: 'Press Start 2P', monospace; font-size: 10px;
  background: var(--panel); border: 3px solid var(--yellow);
  color: var(--yellow); padding: 8px 12px; outline: none; width: 220px;
  text-transform: uppercase;
}

/* STARS BACKGROUND utility */
.stars-bg { background: var(--darker); }

/* NOTIFICATION */
#notif {
  position: absolute; top: 60px; left: 50%; transform: translateX(-50%);
  background: #000000cc; border: 3px solid var(--yellow);
  color: var(--yellow); font-size: 8px; padding: 8px 16px;
  z-index: 100; display: none; white-space: nowrap;
  text-shadow: 0 0 10px var(--yellow);
}

/* Blinking cursor */
.blink { animation: blink 1s step-end infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.pixel-separator {
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}