@import url("https://fonts.googleapis.com/css2?family=Cinzel:wght@400;700&display=swap");

:root {
  --font-primary: "Cinzel", serif;
  --bg-dark: #101118;
  --ring-bg: #212332;
  --ring-border: #3c3f58;
  --text-primary: #dfe3f0;
  --text-secondary: #8b949e;

  --accent-green: #00ff6a;
  --accent-green-dark: #00a344;
  --accent-red: #ff1f4c;
  --accent-red-dark: #a8001f;
  --accent-blue-glow: #1f6feb;
  --accent-white-glow: #ffffff;

  --lock-size: clamp(300px, 80vmin, 500px);
}

body {
  background: var(--bg-dark);
  font-family: var(--font-primary);
  margin: 0;
  color: var(--text-primary);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

.game-container {
  width: 100%;
  height: 100dvh;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

#lock-wrapper {
  position: relative;
  width: var(--lock-size);
  height: var(--lock-size);
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 0.2s ease-in-out;
}

.lock {
  position: relative;
  width: 100%;
  height: 100%;
}

.ring,
.target-zone,
#lock-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
}

.ring {
  background: var(--ring-bg);
  border: 2px solid var(--ring-border);
  transition: box-shadow 0.3s ease-out, border-color 0.3s ease-out,
    transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s ease-out;
}

#ring-outer {
  width: 100%;
  height: 100%;
}
#ring-middle {
  width: 76%;
  height: 76%;
}
#ring-inner {
  width: 52%;
  height: 52%;
}

.ring.success {
  border-color: var(--accent-green);
  box-shadow: 0 0 15px var(--accent-green),
    inset 0 0 10px var(--accent-green-dark);
  animation: success-pulse 0.8s ease-out;
}

.target-zone {
  background: conic-gradient(
    var(--accent-green) 0deg,
    var(--accent-green) 0deg,
    transparent 0deg
  );
  opacity: 0;
  transition: opacity 0.4s ease-out;
}
.target-zone.active {
  opacity: 1;
  filter: drop-shadow(0 0 8px var(--accent-green));
}
.target-zone::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--ring-bg);
}
#target-outer {
  width: 100%;
  height: 100%;
}
#target-outer::before {
  width: calc(100% - 24%);
  height: calc(100% - 24%);
}
#target-middle {
  width: 76%;
  height: 76%;
}
#target-middle::before {
  width: calc(100% - 31.5%);
  height: calc(100% - 31.5%);
}
#target-inner {
  width: 52%;
  height: 52%;
}
#target-inner::before {
  width: calc(100% - 46%);
  height: calc(100% - 46%);
}

#needle-container {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
}

#needle {
  /* Container for the line and highlight pseudo-elements */
  width: 4px;
  height: 50%;
  position: absolute;
  left: calc(50% - 2px);
  top: 0;
}

#needle::before {
  /* The base, dimmer line */
  content: "";
  position: absolute;
  width: 2px;
  left: 1px; /* Center the 2px line inside the 4px container */
  bottom: 0;
  background: var(--accent-red-dark);
  height: var(--needle-line-height, 0%);
  transition: height 0.2s ease-out;
}

#needle::after {
  /* The bright highlight segment */
  content: "";
  position: absolute;
  width: 4px;
  left: 0;
  background: var(--accent-red);
  border-radius: 2px;
  box-shadow: 0 0 10px var(--accent-red-dark), 0 0 15px var(--accent-red);
  top: var(--needle-highlight-top, 0%);
  height: var(--needle-highlight-height, 0%);
  transition: top 0.2s ease-out, height 0.2s ease-out;
}

#lock-center {
  width: 28%;
  height: 28%;
  background: var(--bg-dark);
  border: 2px solid var(--ring-border);
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1),
    opacity 0.5s ease-out;
}

.ui-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  pointer-events: none;
}

.message {
  position: absolute;
  top: 15%;
  font-size: 1.5rem;
  color: var(--text-secondary);
  text-shadow: 0 0 5px black;
  opacity: 0;
  transition: opacity 0.5s ease-out;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  justify-content: center;
  align-items: center;
  pointer-events: all;
  opacity: 1;
  transition: opacity 0.5s ease-out;
}
.overlay.hidden {
  opacity: 0;
  pointer-events: none;
}
.overlay-box {
  background: linear-gradient(145deg, #1e2a3b, #101620);
  padding: 30px 40px;
  border-radius: 12px;
  border: 1px solid var(--ring-border);
  text-align: center;
  max-width: 90%;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.4);
  animation: fade-in-up 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.overlay-box h1 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: clamp(2rem, 10vw, 3rem);
}
.overlay-box h2 {
  color: var(--text-primary);
  margin-top: 0;
  font-size: 1.8rem;
}
.fullscreen-prompt-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}
.overlay-box .win-text {
  color: var(--accent-green);
  text-shadow: 0 0 15px var(--accent-green-dark);
}
.overlay-box .fail-text {
  color: var(--accent-red);
  text-shadow: 0 0 15px var(--accent-red-dark);
}
.overlay-box p {
  color: var(--text-secondary);
  font-size: clamp(1rem, 4vw, 1.2rem);
  margin-bottom: 25px;
  max-width: 300px;
}
.action-btn {
  padding: 15px 30px;
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: clamp(1.2rem, 5vw, 1.5rem);
  border: 1px solid var(--ring-border);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text-primary);
  background-color: var(--bg-dark);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  transition: all 0.2s ease;
}
.action-btn:hover {
  background-color: var(--ring-bg);
  border-color: var(--accent-blue-glow);
  box-shadow: 0 0 10px var(--accent-blue-glow);
}
.action-btn:active {
  transform: scale(0.98);
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.difficulty-control {
  margin: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.difficulty-control label {
  font-size: 1.2rem;
  color: var(--text-secondary);
}
#difficulty-value {
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.3rem;
}
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 80%;
  max-width: 250px;
  height: 8px;
  background: var(--bg-dark);
  border-radius: 5px;
  border: 1px solid var(--ring-border);
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--text-primary);
  border-radius: 50%;
  border: 2px solid var(--bg-dark);
  box-shadow: 0 0 5px var(--accent-blue-glow);
  transition: background-color 0.2s ease;
}
input[type="range"]:hover::-webkit-slider-thumb {
  background: var(--accent-white-glow);
}
input[type="range"]::-moz-range-track {
  width: 100%;
  height: 8px;
  background: var(--bg-dark);
  border-radius: 5px;
  border: 1px solid var(--ring-border);
}
input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--text-primary);
  border-radius: 50%;
  border: 2px solid var(--bg-dark);
  box-shadow: 0 0 5px var(--accent-blue-glow);
  transition: background-color 0.2s ease;
}
input[type="range"]:hover::-moz-range-thumb {
  background: var(--accent-white-glow);
}

#lock-unlocked-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5%;
  height: 5%;
  background: var(--accent-white-glow);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
  box-shadow: 0 0 20px 10px var(--accent-white-glow),
    0 0 40px 20px var(--accent-blue-glow);
  transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1),
    opacity 0.7s ease-out;
}
#lock-wrapper.unlocked #ring-outer {
  transform: translate(-50%, -50%) scale(1.5);
  opacity: 0;
}
#lock-wrapper.unlocked #ring-middle {
  transform: translate(-50%, -50%) scale(1.8);
  opacity: 0;
}
#lock-wrapper.unlocked #ring-inner {
  transform: translate(-50%, -50%) scale(2.1);
  opacity: 0;
}
#lock-wrapper.unlocked #lock-center {
  transform: translate(-50%, -50%) scale(0);
  opacity: 0;
}
#lock-wrapper.unlocked #lock-unlocked-glow {
  transform: translate(-50%, -50%) scale(10);
  opacity: 1;
}

@keyframes success-pulse {
  0% {
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    transform: translate(-50%, -50%) scale(1.02);
  }
  100% {
    transform: translate(-50%, -50%) scale(1);
  }
}
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes screen-shake {
  0%,
  100% {
    transform: translate(0, 0) rotate(0);
  }
  25% {
    transform: translate(5px, -5px) rotate(1deg);
  }
  50% {
    transform: translate(-5px, 5px) rotate(-1deg);
  }
  75% {
    transform: translate(5px, 5px) rotate(1deg);
  }
}
#lock-wrapper.shake {
  animation: screen-shake 0.3s ease-in-out;
}

#orientation-lock {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--bg-dark);
  z-index: 1000;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px;
}
#orientation-lock .overlay-box::before {
  content: "⟲";
  font-family: sans-serif;
  font-size: 5rem;
  margin-bottom: 20px;
  display: block;
  color: var(--text-secondary);
}
@media screen and (orientation: landscape) and (max-height: 600px) {
  #orientation-lock {
    display: flex;
  }
}