:root {
  --scene-max-width: 1300px;
  --turtle-width: 320px;
  --turtle-left: 20%;
  --turtle-bottom: 8%;
  --title-font-size: 46px;
  --about-title-font-size: 32px;
  --about-text-font-size: 18px;
  --level-font-size: 20px;
  --social-font-size: 16px;
  --right-side-left: 48%;
  --right-side-top: 18%;
  --right-side-width: 46%;
  --about-margin-top: 24px;
  --social-right: 40px;
  --social-bottom: 26px;
  --social-gap: 12px;
  --bg-color: #05060b;
  --accent-green: #4fd36b;
  --accent-yellow: #ffc94f;
  --accent-red: #ff5b5b;
  --panel-bg: rgba(0, 0, 0, 0.6);
  --text-main: #ffffff;
  --text-soft: #e5f4ec;
  --button-bg: rgba(0, 0, 0, 0.7);
  --button-border: #ffffff;
}

*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-color);
  color: var(--text-main);
  overflow: hidden;
}

.scene {
  position: relative;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.scene-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  filter: saturate(1.1);
}

.scene::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 20% 30%, rgba(0, 0, 0, 0), rgba(0, 0, 0, 0.45));
  z-index: -1;
}

.scene-inner {
  position: relative;
  max-width: var(--scene-max-width);
  width: 100%;
  height: 80vh;
  padding-inline: 24px;
}

.left-side {
  position: absolute;
  inset: 0;
}

.turtle-wrapper {
  position: absolute;
  left: var(--turtle-left);
  bottom: var(--turtle-bottom);
  width: var(--turtle-width);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: auto;
  cursor: pointer;
  animation: turtleIdle 4s ease-in-out infinite;
}

.turtle-image {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 10px 16px rgba(0, 0, 0, 0.7));
}

.level-counter {
  margin-top: 8px;
  padding: 4px 12px;
  font-size: var(--level-font-size);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-yellow);
  background: rgba(0, 0, 0, 0.75);
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.7);
}

.right-side {
  position: absolute;
  top: var(--right-side-top);
  left: var(--right-side-left);
  width: var(--right-side-width);
}

.hud {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--panel-bg);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  margin-bottom: 12px;
}

.hp-label {
  font-size: 12px;
  color: var(--accent-red);
  text-transform: uppercase;
}

.hp-bar {
  position: relative;
  width: 120px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  overflow: hidden;
}

.hp-fill {
  position: absolute;
  inset: 0;
  width: 85%;
  background: linear-gradient(90deg, var(--accent-green), #b6ff7f);
}

.hud-boost {
  margin-left: 8px;
  font-size: 12px;
  color: var(--text-soft);
}

.hero-title {
  font-size: var(--title-font-size);
  line-height: 1.1;
  margin-bottom: 8px;
  text-shadow: 0 0 10px rgba(0, 0, 0, 0.9);
  letter-spacing: 1px;
}

.about-block {
  margin-top: var(--about-margin-top);
  padding: 14px 16px 16px;
  background: var(--panel-bg);
  border-radius: 16px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.about-title {
  font-size: var(--about-title-font-size);
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 10px;
  color: var(--accent-yellow);
}

.about-text {
  font-size: var(--about-text-font-size);
  line-height: 1.4;
  color: var(--text-soft);
}

.socials {
  position: absolute;
  right: var(--social-right);
  bottom: var(--social-bottom);
  display: flex;
  gap: var(--social-gap);
}

.social-btn {
  font-size: var(--social-font-size);
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text-main);
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
}

.social-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 14px rgba(0, 0, 0, 0.7);
  background: rgba(0, 0, 0, 0.9);
  border-color: var(--accent-green);
}

.social-btn:active {
  transform: translateY(0px) scale(0.97);
}

@keyframes turtleIdle {
  0%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  50% {
    transform: translateX(-50%) translateY(-6px);
  }
}

@keyframes turtleDashRight {
  0% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateX(40px) translateY(-4px);
  }
  80% {
    transform: translateX(-50%) translateX(0) translateY(0);
  }
  100% {
    transform: translateX(-50%) translateY(0);
  }
}

@keyframes turtleDashLeft {
  0% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateX(-40px) translateY(-4px);
  }
  80% {
    transform: translateX(-50%) translateX(0) translateY(0);
  }
  100% {
    transform: translateX(-50%) translateY(0);
  }
}

.turtle-wrapper.dash-right,
.turtle-wrapper.dash-left {
  animation: none;
}

.turtle-wrapper.dash-right {
  animation: turtleDashRight 0.45s ease-out;
}

.turtle-wrapper.dash-left {
  animation: turtleDashLeft 0.45s ease-out;
}

.oneup {
  position: fixed;
  width: 90px;
  height: auto;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: oneupFloat 0.8s ease-out forwards;
  z-index: 9999;
}

@keyframes oneupFloat {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.6);
  }
  20% {
    opacity: 1;
    transform: translate(-50%, -70%) scale(1);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -130%) scale(1.1);
  }
}

.social-img {
  width: 60px;
  height: 60px;
  object-fit: contain;
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.2s ease;
}

.social-img:hover {
  transform: scale(1.15);
  filter: brightness(1.2);
}

.social-img:active {
  transform: scale(0.9);
}

@media (max-width: 768px) {
  :root {
    --turtle-width: 230px;
    --turtle-left: 50%;
    --turtle-bottom: 26%;
    --right-side-left: 50%;
    --right-side-top: 56%;
    --right-side-width: 88%;
    --title-font-size: 30px;
    --about-title-font-size: 22px;
    --about-text-font-size: 15px;
    --level-font-size: 16px;
    --social-font-size: 14px;
    --social-right: 50%;
    --social-bottom: 12px;
  }

  .right-side {
    transform: translateX(-50%);
  }

  .socials {
    transform: translateX(50%);
  }

  .scene-inner {
    padding-inline: 16px;
    height: 100vh;
  }
}