:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #07100d;
  color: #effff6;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 15%, rgba(70, 190, 128, 0.15), transparent 30rem),
    radial-gradient(circle at 85% 5%, rgba(133, 82, 255, 0.14), transparent 28rem),
    #07100d;
}

button,
input {
  font: inherit;
}

.shell {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 30px 0 44px;
}

.hero {
  display: flex;
  gap: 24px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 20px;
}

.eyebrow {
  margin: 0 0 7px;
  color: #7cf7b4;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 4.7rem);
  letter-spacing: -0.055em;
  line-height: 0.95;
}

.intro {
  max-width: 620px;
  margin: 14px 0 0;
  color: #afc8ba;
  line-height: 1.55;
}

.hero-note {
  max-width: 250px;
  margin: 0;
  padding: 12px 14px;
  border: 1px solid rgba(124, 247, 180, 0.2);
  border-radius: 16px;
  color: #bde7ce;
  background: rgba(10, 28, 20, 0.72);
  line-height: 1.4;
}

.world-card {
  overflow: hidden;
  border: 1px solid rgba(178, 255, 213, 0.14);
  border-radius: 24px;
  background: rgba(5, 17, 12, 0.86);
  box-shadow: 0 24px 90px rgba(0, 0, 0, 0.34);
}

#world {
  display: block;
  width: 100%;
  height: clamp(390px, 62vh, 650px);
  touch-action: manipulation;
  cursor: crosshair;
  background:
    radial-gradient(circle at center, rgba(27, 58, 43, 0.42), transparent 65%),
    #06100c;
}

.stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: rgba(177, 255, 212, 0.1);
}

.stat {
  padding: 14px 16px;
  background: #091710;
}

.stat strong {
  display: block;
  font-size: 1.32rem;
}

.stat span {
  color: #799b88;
  font-size: 0.78rem;
}

.control-panel {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
  margin-top: 16px;
}

.controls,
.actions {
  border: 1px solid rgba(178, 255, 213, 0.12);
  border-radius: 20px;
  background: rgba(9, 23, 16, 0.8);
}

.controls {
  display: grid;
  gap: 15px;
  padding: 18px;
}

.control {
  display: grid;
  grid-template-columns: 118px 1fr 44px;
  gap: 12px;
  align-items: center;
}

.control label,
.control output {
  color: #bdd6c7;
  font-size: 0.86rem;
}

.control output {
  text-align: right;
}

input[type="range"] {
  width: 100%;
  accent-color: #77efac;
}

.actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 18px;
}

button {
  min-height: 48px;
  border: 1px solid rgba(178, 255, 213, 0.16);
  border-radius: 14px;
  color: #effff6;
  background: #10291c;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}

button:hover {
  transform: translateY(-1px);
  background: #173824;
}

button.primary {
  color: #05200f;
  border-color: transparent;
  background: #7cf7b4;
  font-weight: 800;
}

.footer-note {
  margin: 16px 4px 0;
  color: #6e8c7b;
  font-size: 0.85rem;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 18px, 1180px);
    padding-top: 20px;
  }

  .hero {
    display: block;
  }

  .hero-note {
    max-width: none;
    margin-top: 16px;
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat:last-child {
    grid-column: 1 / -1;
  }

  .control-panel {
    grid-template-columns: 1fr;
  }

  .control {
    grid-template-columns: 92px 1fr 38px;
  }

  .actions {
    grid-template-columns: 1fr;
  }
}