/* ============================================================
   STAR GAME — style.css
   Aesthetic: Dark neon-arcade with glassmorphism panels
   ============================================================ */

/* ---- CSS VARIABLES ---- */
:root {
  --bg:          #04030f;
  --surface:     rgba(255,255,255,0.05);
  --border:      rgba(255,255,255,0.12);
  --accent:      #f7c948;
  --accent2:     #ff4fa3;
  --accent3:     #4ff7c1;
  --danger:      #ff3c3c;
  --text:        #e8e0ff;
  --text-dim:    rgba(232,224,255,0.45);
  --glow-gold:   0 0 18px #f7c948aa, 0 0 40px #f7c94840;
  --glow-pink:   0 0 18px #ff4fa3aa, 0 0 40px #ff4fa340;
  --glow-teal:   0 0 18px #4ff7c1aa, 0 0 40px #4ff7c140;
  --glow-red:    0 0 18px #ff3c3caa, 0 0 40px #ff3c3c40;
  --font-head:   'Orbitron', monospace;
  --font-body:   'Rajdhani', sans-serif;
  --radius:      16px;
  --radius-sm:   8px;
}

/* ---- RESET ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* ---- BACKGROUND CANVAS ---- */
#bgCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ============================================================
   SCREENS
   ============================================================ */
.screen {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: none;
  align-items: center;
  justify-content: center;
}
.screen.active { display: flex; }

/* ============================================================
   START SCREEN
   ============================================================ */
#startScreen {
  background: radial-gradient(ellipse at 50% 30%, #1a0a3a 0%, #04030f 70%);
}

.screen-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  padding: 32px 24px;
  width: min(480px, 95vw);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px #7c3aed30, inset 0 1px 0 rgba(255,255,255,0.08);
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-star {
  font-size: 2.2rem;
  color: var(--accent);
  filter: drop-shadow(0 0 12px #f7c948);
  animation: spinStar 4s linear infinite;
}

@keyframes spinStar {
  0%   { transform: rotate(0deg) scale(1); }
  50%  { transform: rotate(180deg) scale(1.2); }
  100% { transform: rotate(360deg) scale(1); }
}

.game-title {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 6vw, 3rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  background: linear-gradient(135deg, #f7c948, #ff4fa3, #4ff7c1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  filter: drop-shadow(0 0 20px #f7c94870);
}

.tagline {
  font-size: 0.95rem;
  color: var(--text-dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 300;
  margin-top: -12px;
}

/* High score preview */
.highscore-preview {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px 20px;
  background: rgba(247,201,72,0.1);
  border: 1px solid rgba(247,201,72,0.25);
  border-radius: 50px;
}
.hs-label {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--accent);
  font-family: var(--font-head);
}
#startHighScore {
  font-family: var(--font-head);
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 700;
}

/* Difficulty */
.section-label {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--text-dim);
  font-family: var(--font-head);
  text-align: center;
}

.difficulty-select { display: flex; flex-direction: column; gap: 10px; width: 100%; align-items: center; }

.diff-buttons { display: flex; gap: 10px; }

.diff-btn {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 10px 22px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
}
.diff-btn:hover { color: var(--text); border-color: var(--accent); box-shadow: var(--glow-gold); }
.diff-btn.active[data-diff="easy"]   { background: #1a3a1a; border-color: var(--accent3); color: var(--accent3); box-shadow: var(--glow-teal); }
.diff-btn.active[data-diff="medium"] { background: #3a2a0a; border-color: var(--accent);  color: var(--accent);  box-shadow: var(--glow-gold); }
.diff-btn.active[data-diff="hard"]   { background: #3a0a1a; border-color: var(--accent2); color: var(--accent2); box-shadow: var(--glow-pink); }

/* Buttons */
.btn-primary {
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 14px 36px;
  border-radius: 50px;
  border: 2px solid var(--accent);
  background: linear-gradient(135deg, #f7c94820, #ff4fa310);
  color: var(--accent);
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  box-shadow: var(--glow-gold);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #f7c94840, #ff4fa330);
  transform: translateY(-2px);
  box-shadow: 0 0 30px #f7c948cc, 0 0 60px #f7c94840;
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  padding: 10px 24px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
}
.btn-secondary:hover { color: var(--text); border-color: var(--accent3); box-shadow: var(--glow-teal); }

/* Pulse animation for start button */
.pulse-btn {
  animation: pulsate 2s ease-in-out infinite;
}
@keyframes pulsate {
  0%, 100% { box-shadow: var(--glow-gold); }
  50%       { box-shadow: 0 0 40px #f7c948dd, 0 0 80px #f7c94870; }
}

/* Instructions */
.instructions {
  font-size: 0.8rem;
  color: var(--text-dim);
  text-align: center;
  line-height: 1.8;
  font-weight: 300;
}

/* ============================================================
   GAME SCREEN
   ============================================================ */
#gameScreen {
  flex-direction: column;
  background: #04030f;
}

/* HUD */
#hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 900px;
  padding: 10px 16px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
  gap: 6px;
  z-index: 20;
}

.hud-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 60px;
}
.hud-center { min-width: 80px; }

.hud-label {
  font-family: var(--font-head);
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}

.hud-value {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.hud-timer {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
  text-shadow: var(--glow-gold);
  transition: color 0.3s;
}
.hud-timer.danger {
  color: var(--danger);
  text-shadow: var(--glow-red);
  animation: timerPulse 0.5s ease-in-out infinite;
}
@keyframes timerPulse {
  0%, 100% { transform: scale(1); }
  50%       { transform: scale(1.1); }
}

/* Powerup indicator */
.powerup-indicator {
  font-family: var(--font-head);
  font-size: 0.75rem;
  padding: 6px 16px;
  border-radius: 50px;
  background: rgba(79,247,193,0.15);
  border: 1px solid var(--accent3);
  color: var(--accent3);
  box-shadow: var(--glow-teal);
  z-index: 20;
  letter-spacing: 0.1em;
  transition: opacity 0.3s;
}
.hidden { opacity: 0; pointer-events: none; }

/* GAME AREA */
#gameArea {
  flex: 1;
  position: relative;
  width: 100%;
  max-width: 900px;
  overflow: hidden;
  cursor: crosshair;
  background: radial-gradient(ellipse at 50% 50%, #0d0720 0%, #04030f 100%);
}

/* Game controls bar */
#gameControls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 900px;
  padding: 8px 16px;
  background: rgba(255,255,255,0.03);
  border-top: 1px solid var(--border);
  z-index: 20;
}

.ctrl-btn {
  font-family: var(--font-head);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 7px 16px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.2s;
}
.ctrl-btn:hover { color: var(--text); border-color: var(--accent3); box-shadow: var(--glow-teal); }

.diff-badge {
  font-family: var(--font-head);
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  padding: 5px 14px;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--text-dim);
}

/* ============================================================
   GAME OBJECTS (Stars, Bombs, Power-ups)
   ============================================================ */

/* Base game object */
.game-obj {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  cursor: pointer;
  user-select: none;
  transition: transform 0.08s;
  will-change: transform;
}
.game-obj:active { transform: scale(0.85) !important; }

/* Stars */
.star-obj {
  width: 48px;
  height: 48px;
  font-size: 2rem;
  animation: starGlow 1.5s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 8px #f7c948);
}
@keyframes starGlow {
  from { filter: drop-shadow(0 0 6px #f7c948); transform: scale(1) rotate(0deg); }
  to   { filter: drop-shadow(0 0 16px #ff4fa3); transform: scale(1.1) rotate(15deg); }
}

/* Bombs */
.bomb-obj {
  width: 48px;
  height: 48px;
  font-size: 2rem;
  animation: bombBounce 0.8s ease-in-out infinite alternate;
  filter: drop-shadow(0 0 8px #ff3c3c);
}
@keyframes bombBounce {
  from { transform: scale(1) rotate(-5deg); }
  to   { transform: scale(1.05) rotate(5deg); filter: drop-shadow(0 0 14px #ff3c3c); }
}

/* Power-ups */
.powerup-obj {
  width: 44px;
  height: 44px;
  font-size: 1.6rem;
  background: rgba(255,255,255,0.08);
  border: 2px solid rgba(255,255,255,0.3);
  animation: powerupPulse 1s ease-in-out infinite;
}
@keyframes powerupPulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 10px rgba(255,255,255,0.3); }
  50%       { transform: scale(1.15); box-shadow: 0 0 24px rgba(255,255,255,0.6); }
}

/* Click explosion effect */
.click-burst {
  position: absolute;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247,201,72,0.8), transparent 70%);
  pointer-events: none;
  animation: burst 0.4s ease-out forwards;
  transform: translate(-50%, -50%);
}
@keyframes burst {
  0%   { transform: translate(-50%, -50%) scale(0); opacity: 1; }
  100% { transform: translate(-50%, -50%) scale(2.5); opacity: 0; }
}

.bomb-burst {
  background: radial-gradient(circle, rgba(255,60,60,0.9), rgba(255,120,0,0.5), transparent 70%);
}

/* Floating score text */
.float-score {
  position: absolute;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 1.4rem;
  pointer-events: none;
  animation: floatUp 0.9s ease-out forwards;
  transform: translate(-50%, -50%);
  text-shadow: 0 0 10px currentColor;
  z-index: 100;
}
@keyframes floatUp {
  0%   { transform: translate(-50%, -50%) scale(1.3); opacity: 1; }
  100% { transform: translate(-50%, -150%) scale(0.8); opacity: 0; }
}

/* Shake animation for damage */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  15%       { transform: translateX(-8px) rotate(-1deg); }
  30%       { transform: translateX(8px) rotate(1deg); }
  45%       { transform: translateX(-6px); }
  60%       { transform: translateX(6px); }
  75%       { transform: translateX(-3px); }
}
.shake { animation: shake 0.5s ease-in-out !important; }

/* Red flash on damage */
.damage-flash {
  position: fixed;
  inset: 0;
  background: rgba(255,0,0,0.15);
  pointer-events: none;
  z-index: 999;
  animation: flashFade 0.4s ease-out forwards;
}
@keyframes flashFade {
  from { opacity: 1; }
  to   { opacity: 0; }
}

/* ============================================================
   MODALS (Pause / Game Over / Leaderboard)
   ============================================================ */
#pauseScreen, #gameOverScreen, #leaderboardModal {
  background: rgba(4,3,15,0.85);
  backdrop-filter: blur(12px);
}

.modal-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 36px 28px;
  width: min(420px, 92vw);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 0 60px #7c3aed40, inset 0 1px 0 rgba(255,255,255,0.06);
}

.modal-box h2 {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Game Over specific */
.go-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 7vw, 3rem);
  font-weight: 900;
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, var(--danger), #ff8c00);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 20px #ff3c3c80);
}

.go-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.go-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 20px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.go-stat.highlight {
  border-color: var(--accent);
  background: rgba(247,201,72,0.08);
  color: var(--accent);
  font-family: var(--font-head);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  box-shadow: var(--glow-gold);
}

.go-stat-label {
  font-family: var(--font-head);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
}
.go-stat-value {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 900;
  color: var(--text);
}

/* Name input */
.name-input-wrap { width: 100%; }
.name-input-wrap input {
  width: 100%;
  padding: 12px 18px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  text-align: center;
  transition: border-color 0.2s;
}
.name-input-wrap input::placeholder { color: var(--text-dim); }
.name-input-wrap input:focus { border-color: var(--accent3); box-shadow: var(--glow-teal); }

/* Leaderboard list */
.leaderboard-box { max-height: 85vh; overflow-y: auto; }

#leaderboardList {
  width: 100%;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#leaderboardList li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  font-family: var(--font-body);
  font-size: 1rem;
}
#leaderboardList li:nth-child(1) { border-color: #ffd700; background: rgba(255,215,0,0.08); }
#leaderboardList li:nth-child(2) { border-color: #c0c0c0; background: rgba(192,192,192,0.06); }
#leaderboardList li:nth-child(3) { border-color: #cd7f32; background: rgba(205,127,50,0.06); }

.lb-rank { font-family: var(--font-head); font-size: 0.9rem; color: var(--text-dim); min-width: 28px; }
.lb-name { flex: 1; padding: 0 12px; }
.lb-score { font-family: var(--font-head); font-weight: 700; color: var(--accent); }

/* ============================================================
   LEVEL UP OVERLAY
   ============================================================ */
.level-up-overlay {
  position: fixed;
  inset: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.level-up-overlay span {
  font-family: var(--font-head);
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  background: linear-gradient(135deg, var(--accent3), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 30px #4ff7c1cc);
  animation: levelUpAnim 1.2s ease-out forwards;
}
@keyframes levelUpAnim {
  0%   { transform: scale(0.5); opacity: 0; }
  30%  { transform: scale(1.15); opacity: 1; }
  70%  { transform: scale(1); opacity: 1; }
  100% { transform: scale(1.3); opacity: 0; }
}

/* ============================================================
   COUNTDOWN OVERLAY
   ============================================================ */
.countdown-overlay {
  position: fixed;
  inset: 0;
  z-index: 950;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(4,3,15,0.75);
  backdrop-filter: blur(6px);
}
.countdown-overlay span {
  font-family: var(--font-head);
  font-size: clamp(5rem, 20vw, 12rem);
  font-weight: 900;
  color: var(--accent);
  text-shadow: var(--glow-gold);
  animation: countPop 0.9s ease-out;
}
@keyframes countPop {
  0%   { transform: scale(2); opacity: 0; }
  30%  { transform: scale(0.9); opacity: 1; }
  80%  { transform: scale(1); opacity: 1; }
  100% { transform: scale(0.8); opacity: 0; }
}

/* ============================================================
   SCORE POPUP
   ============================================================ */
.score-popup {
  position: fixed;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--accent);
  text-shadow: var(--glow-gold);
  z-index: 500;
  pointer-events: none;
  transition: opacity 0.2s;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 480px) {
  .star-obj, .bomb-obj { width: 42px; height: 42px; font-size: 1.7rem; }
  .powerup-obj         { width: 38px; height: 38px; font-size: 1.4rem; }
  #hud { padding: 8px 10px; gap: 4px; }
  .hud-value { font-size: 1rem; }
  .hud-timer { font-size: 1.6rem; }
  .hud-label { font-size: 0.48rem; }
  .hud-block { min-width: 48px; }
  .diff-btn  { padding: 8px 14px; font-size: 0.68rem; }
  .screen-content { padding: 24px 16px; gap: 14px; }
}

@media (max-height: 600px) {
  .screen-content { padding: 16px; gap: 10px; }
  .game-title { font-size: 1.6rem; }
  .instructions { display: none; }
}