:root {
  color-scheme: dark;
  --bg-top: #040613;
  --bg-bottom: #010204;
  --panel: rgba(12, 16, 32, 0.56);
  --panel-border: rgba(181, 223, 255, 0.18);
  --text: #f4f6ff;
  --muted: rgba(244, 246, 255, 0.72);
  --accent: #8fe6ff;
  --shadow: rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  overflow: hidden;
  background:
    radial-gradient(circle at 20% 20%, rgba(77, 160, 255, 0.22), transparent 32%),
    radial-gradient(circle at 80% 12%, rgba(106, 255, 231, 0.15), transparent 28%),
    linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
  color: var(--text);
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, serif;
}

#scene {
  display: block;
  width: 100vw;
  height: 100vh;
}

.hud {
  position: fixed;
  left: clamp(1rem, 2vw, 1.75rem);
  bottom: clamp(1rem, 2vw, 1.75rem);
  width: min(26rem, calc(100vw - 2rem));
  padding: 1rem 1.15rem 1.05rem;
  border: 1px solid var(--panel-border);
  border-radius: 1.25rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 38%),
    var(--panel);
  box-shadow: 0 1.4rem 3.6rem var(--shadow);
  backdrop-filter: blur(18px);
  pointer-events: none;
}

.admin-panel {
  position: fixed;
  top: clamp(1rem, 2vw, 1.75rem);
  right: clamp(1rem, 2vw, 1.75rem);
  width: min(24rem, calc(100vw - 2rem));
  padding: 1rem 1.05rem 1.1rem;
  border: 1px solid var(--panel-border);
  border-radius: 1.25rem;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), transparent 34%),
    rgba(7, 10, 23, 0.72);
  box-shadow: 0 1.4rem 3.6rem var(--shadow);
  backdrop-filter: blur(18px);
}

.admin-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.admin-title,
.admin-hint {
  margin: 0;
}

.admin-title {
  font-family: "SFMono-Regular", "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(244, 246, 255, 0.8);
}

.admin-button {
  border: 1px solid rgba(143, 230, 255, 0.35);
  border-radius: 999px;
  background: rgba(143, 230, 255, 0.1);
  color: var(--text);
  cursor: pointer;
  font-family: "SFMono-Regular", "SF Mono", "Menlo", "Consolas", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  padding: 0.55rem 0.9rem;
  text-transform: uppercase;
  transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.admin-button:hover,
.admin-button:focus-visible {
  background: rgba(143, 230, 255, 0.18);
  border-color: rgba(143, 230, 255, 0.55);
  outline: none;
}

.admin-button:active {
  transform: translateY(1px);
}

.admin-grid {
  display: grid;
  gap: 0.85rem;
}

.admin-control {
  display: grid;
  gap: 0.38rem;
}

.control-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.control-name,
.control-value,
.admin-hint {
  font-family: "SFMono-Regular", "SF Mono", "Menlo", "Consolas", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.control-name,
.control-value {
  font-size: 0.68rem;
}

.control-name {
  color: rgba(244, 246, 255, 0.72);
}

.control-value {
  color: var(--accent);
}

.admin-control input[type="range"] {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
}

.admin-hint {
  margin-top: 0.95rem;
  color: rgba(244, 246, 255, 0.58);
  font-size: 0.64rem;
  line-height: 1.5;
}

.eyebrow,
.controls,
.status,
.description,
h1 {
  margin: 0;
}

.eyebrow,
.controls,
.status {
  font-family: "SFMono-Regular", "SF Mono", "Menlo", "Consolas", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.7rem;
  margin-bottom: 0.45rem;
}

h1 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 0.94;
  text-wrap: balance;
}

.description {
  margin-top: 0.7rem;
  color: var(--muted);
  line-height: 1.45;
  max-width: 32ch;
}

.controls {
  margin-top: 1rem;
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.72rem;
}

.status {
  margin-top: 0.55rem;
  font-size: 0.72rem;
  color: rgba(143, 230, 255, 0.88);
}

.status[data-state="error"] {
  color: #ffbdb3;
}

@media (max-width: 640px) {
  .hud {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 0.75rem;
    width: auto;
  }

  .admin-panel {
    top: 0.75rem;
    left: 0.75rem;
    right: 0.75rem;
    width: auto;
  }
}