/* ========================================
   TETRA BLOCKS DELUXE - Premium Stylesheet
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Share+Tech+Mono&display=swap');

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --cyan:    #00FFFF;
  --yellow:  #FFE500;
  --purple:  #CC00FF;
  --green:   #00FF66;
  --red:     #FF2244;
  --blue:    #0088FF;
  --orange:  #FF8800;
  --bg:      #03040f;
  --panel-bg: rgba(5, 10, 30, 0.85);
  --panel-border: rgba(0, 200, 255, 0.3);
  --text:    #c8e0ff;
}

html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Share Tech Mono', 'Courier New', monospace;
  user-select: none;
  -webkit-user-select: none;
}

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

/* ===========================
   START SCREEN
   =========================== */
#start-screen {
  flex-direction: column;
  background: var(--bg);
  overflow: hidden;
}

#rain-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.35;
  pointer-events: none;
}

.start-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 32px 20px;
  max-width: 480px;
  width: 100%;
}

/* Logo */
.game-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1;
  text-align: center;
}
.logo-tetra {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(42px, 10vw, 72px);
  color: var(--cyan);
  text-shadow:
    0 0 10px var(--cyan),
    0 0 30px var(--cyan),
    0 0 60px rgba(0,255,255,0.5);
  letter-spacing: 8px;
}
.logo-blocks {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(38px, 9vw, 64px);
  color: var(--purple);
  text-shadow:
    0 0 10px var(--purple),
    0 0 30px var(--purple),
    0 0 60px rgba(204,0,255,0.5);
  letter-spacing: 6px;
}
.logo-deluxe {
  font-family: 'Orbitron', sans-serif;
  font-weight: 400;
  font-size: clamp(14px, 4vw, 22px);
  color: var(--yellow);
  text-shadow:
    0 0 8px var(--yellow),
    0 0 20px rgba(255,229,0,0.6);
  letter-spacing: 14px;
  margin-top: 4px;
}

/* High Score */
.high-score-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: rgba(0,255,255,0.05);
  border: 1px solid rgba(0,255,255,0.2);
  border-radius: 8px;
  padding: 10px 30px;
}
.hs-label {
  font-size: 11px;
  letter-spacing: 3px;
  color: rgba(200,224,255,0.6);
}
.hs-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--yellow);
  text-shadow: 0 0 15px var(--yellow);
}

/* Controls grid */
.controls-hint {
  width: 100%;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 14px 16px;
}
.controls-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 8px 12px;
}
.ctrl-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(200,224,255,0.7);
}
.ctrl-item kbd {
  background: rgba(0,255,255,0.1);
  border: 1px solid rgba(0,255,255,0.35);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: inherit;
  font-size: 11px;
  color: var(--cyan);
  white-space: nowrap;
}

/* ===========================
   BUTTONS
   =========================== */
.neon-btn {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 3px;
  padding: 12px 36px;
  border-radius: 6px;
  border: 2px solid var(--cyan);
  background: rgba(0,255,255,0.08);
  color: var(--cyan);
  cursor: pointer;
  text-shadow: 0 0 8px var(--cyan);
  box-shadow: 0 0 12px rgba(0,255,255,0.25), inset 0 0 12px rgba(0,255,255,0.05);
  transition: all 0.15s ease;
  text-transform: uppercase;
  white-space: nowrap;
}
.neon-btn:hover {
  background: rgba(0,255,255,0.18);
  box-shadow: 0 0 25px rgba(0,255,255,0.5), inset 0 0 20px rgba(0,255,255,0.1);
  transform: translateY(-1px);
}
.neon-btn:active { transform: translateY(1px); }

.btn-primary {
  border-color: var(--cyan);
  color: var(--cyan);
  font-size: 16px;
  padding: 14px 48px;
}
.btn-sound {
  border-color: var(--green);
  color: var(--green);
  text-shadow: 0 0 8px var(--green);
  box-shadow: 0 0 12px rgba(0,255,102,0.25);
  font-size: 12px;
  padding: 8px 20px;
}
.btn-small {
  padding: 6px 14px;
  font-size: 16px;
  letter-spacing: 0;
}

/* ===========================
   GAME SCREEN
   =========================== */
#game-screen { background: var(--bg); }

#game-wrapper {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  padding: 12px;
  width: 100%;
  height: 100vh;
  max-width: 900px;
  margin: 0 auto;
}

/* Side Panels */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 130px;
  flex-shrink: 0;
  padding-top: 8px;
}

.panel-section {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.panel-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--cyan);
  text-shadow: 0 0 8px var(--cyan);
  margin-bottom: 4px;
}

/* Stat blocks */
.score-section { gap: 8px; }
.stat-block {
  width: 100%;
  text-align: center;
  padding: 4px 0;
  border-bottom: 1px solid rgba(0,200,255,0.1);
}
.stat-block:last-child { border-bottom: none; }
.stat-label {
  font-size: 9px;
  letter-spacing: 2px;
  color: rgba(200,224,255,0.5);
  margin-bottom: 2px;
}
.stat-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}

/* Neon colors */
.neon-cyan   { color: var(--cyan);   text-shadow: 0 0 10px var(--cyan); }
.neon-yellow { color: var(--yellow); text-shadow: 0 0 10px var(--yellow); }
.neon-purple { color: var(--purple); text-shadow: 0 0 10px var(--purple); }
.neon-green  { color: var(--green);  text-shadow: 0 0 10px var(--green); }
.neon-red    { color: var(--red);    text-shadow: 0 0 10px var(--red); }

/* Hold / Next canvases */
#hold-canvas, #next-canvas {
  border-radius: 4px;
  background: rgba(0,0,0,0.3);
  display: block;
  margin: 0 auto;
}

/* Button section */
.btn-section {
  flex-direction: row;
  gap: 6px;
  padding: 6px;
}

/* Mobile controls */
.mobile-controls {
  display: none;
  flex-direction: column;
  gap: 6px;
}
.mob-btn {
  font-family: 'Orbitron', sans-serif;
  font-size: 13px;
  font-weight: 700;
  padding: 10px;
  width: 100%;
  border-radius: 6px;
  border: 1px solid var(--panel-border);
  background: rgba(0,255,255,0.07);
  color: var(--cyan);
  cursor: pointer;
  text-shadow: 0 0 6px var(--cyan);
  letter-spacing: 1px;
  -webkit-tap-highlight-color: transparent;
}
.mob-btn:active {
  background: rgba(0,255,255,0.2);
}

/* Main Canvas wrap */
#canvas-wrap {
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

#game-canvas {
  display: block;
  image-rendering: pixelated;
}

/* Combo / Action text */
.combo-text, .action-text {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  pointer-events: none;
  white-space: nowrap;
  transition: opacity 0.3s;
  text-align: center;
}
.combo-text {
  top: 15%;
  font-size: clamp(16px, 3vw, 26px);
  color: var(--orange);
  text-shadow: 0 0 15px var(--orange), 0 0 30px rgba(255,136,0,0.5);
  opacity: 0;
}
.action-text {
  top: 8%;
  font-size: clamp(14px, 2.5vw, 20px);
  color: var(--yellow);
  text-shadow: 0 0 15px var(--yellow);
  opacity: 0;
}

/* ===========================
   PAUSE OVERLAY
   =========================== */
#pause-overlay {
  background: rgba(3, 4, 15, 0.88);
  backdrop-filter: blur(6px);
  z-index: 20;
}

/* ===========================
   GAME OVER OVERLAY
   =========================== */
#gameover-overlay {
  background: rgba(3, 4, 15, 0.92);
  backdrop-filter: blur(8px);
  z-index: 20;
}

/* Shared overlay content */
.overlay-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 40px 50px;
  background: rgba(5, 10, 35, 0.95);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  box-shadow:
    0 0 40px rgba(0,200,255,0.15),
    inset 0 0 60px rgba(0,0,50,0.4);
  max-width: 420px;
  width: 90%;
}

.overlay-title {
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(28px, 7vw, 48px);
  letter-spacing: 4px;
  text-align: center;
}

/* Game over stats */
.go-stats {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  background: rgba(0,0,0,0.3);
  border-radius: 6px;
  padding: 12px 20px;
}
.go-stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0,200,255,0.1);
  padding: 5px 0;
}
.go-stat:last-child { border-bottom: none; }
.go-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: rgba(200,224,255,0.5);
}
.go-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 20px;
  font-weight: 700;
}

.new-record {
  font-family: 'Orbitron', sans-serif;
  font-size: 18px;
  font-weight: 900;
  color: var(--yellow);
  text-shadow: 0 0 20px var(--yellow), 0 0 40px rgba(255,229,0,0.4);
  letter-spacing: 3px;
  animation: pulse-record 0.8s ease-in-out infinite alternate;
}
@keyframes pulse-record {
  from { opacity: 0.7; transform: scale(0.97); }
  to   { opacity: 1.0; transform: scale(1.03); }
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 680px) {
  #game-wrapper { gap: 6px; padding: 6px; }
  .side-panel { width: 100px; }
  .stat-value { font-size: 15px; }

  .mobile-controls { display: flex; }

  .controls-hint { display: none; }
}

@media (max-width: 520px) {
  .side-panel { width: 80px; }
  .stat-value { font-size: 13px; }
  .panel-label { font-size: 9px; letter-spacing: 2px; }
  #hold-canvas { width: 80px; height: 80px; }
  #next-canvas  { width: 80px; height: 240px; }

  .logo-tetra  { font-size: 36px; }
  .logo-blocks { font-size: 30px; }
}

@media (max-height: 600px) and (orientation: landscape) {
  #game-wrapper { padding: 4px; gap: 6px; }
}