* {
  box-sizing: border-box;
}

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

body {
  background: #d9d6d0;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  font-family: Georgia, "Times New Roman", serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 255, 255, 0.34), transparent 34%),
    radial-gradient(circle at 78% 26%, rgba(255, 255, 255, 0.22), transparent 28%),
    radial-gradient(circle at 34% 74%, rgba(0, 0, 0, 0.065), transparent 30%),
    radial-gradient(circle at 70% 82%, rgba(0, 0, 0, 0.055), transparent 24%),
    repeating-linear-gradient(
      18deg,
      rgba(255, 255, 255, 0.11) 0 1px,
      rgba(0, 0, 0, 0.045) 1px 2px,
      transparent 2px 5px
    ),
    repeating-linear-gradient(
      102deg,
      rgba(255, 255, 255, 0.08) 0 1px,
      rgba(0, 0, 0, 0.038) 1px 2px,
      transparent 2px 6px
    );
  opacity: 0.52;
  mix-blend-mode: multiply;
  z-index: 2;
}

#app {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100vh;
  overflow: hidden;
  background: #d9d6d0;
}

#app canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.ui-panel {
  position: fixed;
  bottom: 36px;
  left: 36px;
  z-index: 3;
  width: min(252px, calc(100vw - 48px));
  padding: 20px 22px 18px;
  background: rgba(250, 247, 241, 0.88);
  backdrop-filter: blur(32px) saturate(160%);
  -webkit-backdrop-filter: blur(32px) saturate(160%);
  border: 1px solid rgba(0, 0, 0, 0.07);
  box-shadow:
    0 1px 2px rgba(0, 0, 0, 0.04),
    0 4px 16px rgba(0, 0, 0, 0.06),
    0 20px 56px rgba(0, 0, 0, 0.07);
}

.ui-kicker,
.ui-seed {
  margin: 0;
  color: #9a8c7c;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 8.5px;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

.ui-title {
  margin: 8px 0 0;
  color: #1a1510;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 22px;
  line-height: 1.06;
  font-weight: 400;
  letter-spacing: 0.01em;
}

.ui-seed {
  display: flex;
  gap: 0.55ch;
  margin-top: 12px;
  font-size: 9px;
  letter-spacing: 0.22em;
}

#seed-value {
  color: #6a5e52;
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum";
}

.ui-rule {
  margin: 18px 0 16px;
  height: 1px;
  background: rgba(0, 0, 0, 0.08);
}

.ui-actions {
  display: flex;
  gap: 8px;
}

.ui-button {
  appearance: none;
  flex: 1;
  border: 1px solid transparent;
  background: transparent;
  color: #1a1510;
  min-height: 0;
  padding: 11px 10px;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background-color 120ms ease,
    border-color 120ms ease,
    color 120ms ease,
    transform 120ms ease;
}

.ui-button:hover {
  transform: translateY(-1px);
}

.ui-button-primary {
  background: #1a1510;
  border-color: #1a1510;
  color: #f5f0e4;
}

.ui-button-primary:hover {
  background: #2e261c;
  border-color: #2e261c;
}

.ui-button:not(.ui-button-primary) {
  border-color: rgba(26, 21, 16, 0.26);
}

.ui-button:not(.ui-button-primary):hover {
  background: rgba(26, 21, 16, 0.05);
  border-color: rgba(26, 21, 16, 0.42);
}

@media (max-width: 720px) {
  .ui-panel {
    bottom: 24px;
    left: 20px;
    right: 20px;
    width: calc(100vw - 32px);
    padding: 24px;
  }

  .ui-kicker,
  .ui-seed {
    font-size: 9px;
  }
}