/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  user-select: none;
  -webkit-user-select: none;
}

body, html {
  width: 100%;
  height: 100%;
  min-height: 100%;
  overflow: hidden;
  font-family: 'Inter', sans-serif;
  background-color: #f4f6f8;
  touch-action: none; /* Prevent scroll on mobile */
  -webkit-tap-highlight-color: transparent;
}

body {
  min-height: 100dvh;
}

@media screen and (max-width: 1000px) {
  #game-container {
    width: 100vw;
    height: 100vh;
    min-height: 100vh;
  }
}

/* Game Container */
#game-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

#canvas-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#canvas-wrapper.rotate-landscape {
  position: absolute;
  width: 100vh;
  height: 100vw;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(90deg);
  transform-origin: center center;
}

canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

/* HUD Overlay */
.hud {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 30px;
  display: flex;
  justify-content: space-between;
  z-index: 10;
  pointer-events: none;
}

.stat {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 8px;
  background: rgba(15, 20, 30, 0.7);
  padding: 8px 16px;
  border-radius: 12px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  letter-spacing: 0.1em;
}

.stat span {
  font-weight: 800;
  color: #3867d6; /* Electric Blue */
}

.hud-center {
  text-align: center;
  opacity: 1;
  transition: opacity 0.5s ease;
}

#game-message {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  text-shadow: 0 4px 20px rgba(0,0,0,0.5);
  margin-bottom: 4px;
}

#sub-message {
  font-size: 16px;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* Controls */
.controls-container {
  position: absolute;
  bottom: 30px;
  width: 100%;
  padding: 0 40px;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  z-index: 10;
  pointer-events: none;
}

.control-area {
  pointer-events: auto;
  background: rgba(255,255,255,0.3);
  padding: 20px 15px;
  border-radius: 16px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.5);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.slider-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.slider-label {
  margin-top: 15px;
  font-weight: 700;
  color: #2c3e50;
  font-size: 14px;
  letter-spacing: 1px;
}

/* Vertical Sliders Styling */
input[type=range][orient=vertical],
input[type=range].vertical-slider {
  writing-mode: bt-lr; /* IE */
  -webkit-appearance: slider-vertical; /* WebKit */
  width: 24px;
  height: 180px;
  padding: 0;
  margin: 0;
  background: #dfe6e9;
  border-radius: 12px;
  outline: none;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid #a4b0be;
  box-shadow: 0 4px 6px rgba(0,0,0,0.2);
  cursor: pointer;
}

/* Result Overlay */
.menu-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(10, 15, 25, 0.82);
  backdrop-filter: blur(18px);
  padding: 40px 60px;
  border-radius: 28px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.4);
  border: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  z-index: 50;
  display: none;
}

#result-screen.active,
#start-screen.active {
  display: block;
  animation: popIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

#start-screen {
  background: rgba(255, 255, 255, 0.92);
  border: none;
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
  padding: 40px 60px;
  max-width: min(92vw, 420px);
  width: 100%;
}

#orientation-warning {
  display: none;
  pointer-events: none;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: min(92vw, 420px);
  padding: 28px 24px;
}

#orientation-warning.active {
  display: flex;
  pointer-events: auto;
}

#orientation-warning h1 {
  font-size: 28px;
  letter-spacing: 0.16em;
}

#orientation-warning p {
  font-size: 15px;
  color: rgba(255,255,255,0.78);
  line-height: 1.5;
}


.how-to-play {
  text-align: left;
  margin: 20px 0;
  color: #253745;
  font-size: 14px;
  line-height: 1.6;
  width: 100%;
}

.how-to-play p {
  font-weight: 700;
  margin-bottom: 10px;
}

.how-to-play ul {
  list-style: disc inside;
  margin: 0;
  padding-left: 16px;
}

.how-to-play li {
  margin-bottom: 8px;
}


.game-title {
  font-size: 48px;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 10px;
  letter-spacing: -1px;
  text-shadow: 0 0 20px rgba(255,255,255,0.1);
}

.game-subtitle {
  font-size: 18px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 40px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.start-pulse {
  background: linear-gradient(135deg, #3867d6, #4b7bec);
  font-size: 20px;
  letter-spacing: 2px;
  padding: 20px 48px;
  border: 1px solid rgba(255,255,255,0.2);
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(44, 62, 80, 0.4); }
  70% { box-shadow: 0 0 0 15px rgba(44, 62, 80, 0); }
  100% { box-shadow: 0 0 0 0 rgba(44, 62, 80, 0); }
}

@keyframes popIn {
  from { transform: translate(-50%, -50%) scale(0.8); opacity: 0; }
  to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

#result-title {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 15px;
  letter-spacing: 1px;
}

.result-stats p {
  font-size: 18px;
  color: rgba(255,255,255,0.7);
  margin: 12px 0;
  display: flex;
  justify-content: space-between;
  width: 280px;
  margin: 12px auto;
}

.result-stats span {
  font-weight: 800;
  color: #3867d6;
}

.score-added {
  font-size: 32px;
  font-weight: 700;
  color: #448b56;
  margin: 20px 0;
}

.action-btn {
  display: block;
  width: 100%;
  padding: 18px;
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  background: #3867d6;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  margin-top: 15px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 25px rgba(56, 103, 214, 0.3);
}

.action-btn:hover {
  background: #2c3e50;
  transform: translateY(-2px);
}

.action-btn.secondary {
  background: transparent;
  color: #576574;
  border: 2px solid #c8d6e5;
  box-shadow: none;
}

.action-btn.secondary:hover {
  background: #f1f2f6;
  color: #2c3e50;
}

/* Responsive tweaks */
@media (max-width: 768px) {
  body, html, #game-container {
    width: 100vw;
    height: 100dvh;
    min-height: 100dvh;
  }

  #game-container {
    overflow: hidden;
  }

  .hud {
    padding: 10px 12px;
    flex-direction: column;
    gap: 8px;
    align-items: stretch;
  }

  .hud-left,
  .hud-right {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .hud-center {
    order: 3;
  }

  .stat {
    font-size: 12px;
    padding: 6px 8px;
    margin-bottom: 0;
  }

  #game-message {
    font-size: 16px;
  }

  #sub-message {
    font-size: 10px;
  }

  .controls-container {
    padding: 0 12px 12px;
    bottom: max(12px, env(safe-area-inset-bottom));
    gap: 12px;
    flex-wrap: nowrap;
    justify-content: center;
  }

  .control-area {
    padding: 12px 10px;
    border-radius: 12px;
    width: 170px;
    min-width: 140px;
    margin: 0 8px;
  }

  input[type=range][orient=vertical], input[type=range].vertical-slider {
    height: 115px;
  }

  input[type=range]::-webkit-slider-thumb {
    width: 30px;
    height: 30px;
  }

  .menu-overlay,
  #start-screen {
    max-height: calc(100dvh - 24px);
    overflow-y: auto;
  }

  #start-screen {
    padding: 20px 16px;
    max-width: min(94vw, 420px);
    width: 100%;
  }

  .menu-overlay {
    width: min(92vw, 420px);
  }

  .game-title {
    font-size: 28px;
  }

  .game-subtitle {
    margin-bottom: 16px;
    font-size: 13px;
  }

  .how-to-play {
    font-size: 12px;
    margin: 12px 0;
  }

  .how-to-play ul {
    padding-left: 14px;
  }

  .start-pulse,
  .action-btn {
    padding: 14px 18px;
    font-size: 15px;
  }
}