:root {
  --bg: #03060f;
  --panel: rgba(5, 11, 28, 0.64);
  --panel-border: rgba(255, 255, 255, 0.1);
  --text: #f2f6ff;
  --muted: #a7b5cf;
  --accent: #f6b56f;
  --cool: #84c6ff;
  --shadow: rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

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

body {
  overflow: hidden;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  background:
    radial-gradient(circle at 18% 22%, rgba(82, 145, 217, 0.3), transparent 28%),
    radial-gradient(circle at 80% 10%, rgba(246, 181, 111, 0.16), transparent 24%),
    radial-gradient(circle at 52% 84%, rgba(20, 50, 116, 0.28), transparent 30%),
    linear-gradient(180deg, #050a17 0%, #02040a 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: -20%;
  pointer-events: none;
  background:
    radial-gradient(circle at 30% 30%, rgba(132, 198, 255, 0.16), transparent 24%),
    radial-gradient(circle at 72% 28%, rgba(246, 181, 111, 0.12), transparent 18%),
    radial-gradient(circle at 56% 72%, rgba(22, 57, 126, 0.16), transparent 22%);
  filter: blur(48px);
}

.app-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
}

.scene-root,
.scene-root canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.panel,
.loading-panel {
  position: absolute;
  z-index: 2;
  backdrop-filter: blur(18px);
  background: linear-gradient(180deg, rgba(12, 20, 42, 0.82), rgba(6, 10, 20, 0.54));
  border: 1px solid var(--panel-border);
  box-shadow:
    0 18px 36px var(--shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.hero-panel {
  top: 24px;
  left: 24px;
  width: min(420px, calc(100vw - 48px));
  padding: 22px 24px 20px;
  border-radius: 24px;
}

.meta-panel {
  right: 24px;
  bottom: 24px;
  width: min(300px, calc(100vw - 48px));
  padding: 18px 20px;
  border-radius: 22px;
  display: grid;
  gap: 14px;
}

.eyebrow,
.meta-label,
.loading-label {
  margin: 0;
  font-family: "Chakra Petch", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.eyebrow {
  color: var(--cool);
  font-size: 0.72rem;
}

.hero-panel h1 {
  margin: 10px 0 10px;
  font-family: "Chakra Petch", sans-serif;
  font-size: clamp(2.4rem, 5vw, 4.25rem);
  line-height: 0.95;
  letter-spacing: 0.01em;
}

.copy,
.meta-panel p,
.loading-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
  font-size: 0.98rem;
}

.meta-label {
  display: inline-block;
  margin-bottom: 4px;
  color: var(--accent);
  font-size: 0.68rem;
}

.audio-toggle {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(18, 30, 58, 0.86), rgba(8, 13, 25, 0.9));
  color: var(--text);
  font: inherit;
  font-size: 0.92rem;
  line-height: 1.2;
  text-align: left;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.audio-toggle:hover {
  transform: translateY(-1px);
  border-color: rgba(132, 198, 255, 0.42);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

.audio-toggle[aria-pressed="true"] {
  border-color: rgba(246, 181, 111, 0.46);
  background: linear-gradient(180deg, rgba(42, 28, 12, 0.92), rgba(14, 12, 16, 0.9));
  color: #fff2df;
  box-shadow: inset 0 0 18px rgba(246, 181, 111, 0.12);
}

.audio-toggle:focus-visible {
  outline: 2px solid rgba(132, 198, 255, 0.78);
  outline-offset: 2px;
}

.audio-toggle:disabled {
  cursor: default;
  opacity: 0.58;
  transform: none;
  box-shadow: none;
}

.loading-panel {
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  width: min(340px, calc(100vw - 40px));
  padding: 18px 22px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 14px;
  transition:
    opacity 400ms ease,
    transform 400ms ease;
}

.loading-panel.is-hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(12px);
  pointer-events: none;
}

.loading-orb {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff2df 0%, var(--accent) 42%, #914d00 100%);
  box-shadow:
    0 0 22px rgba(246, 181, 111, 0.85),
    inset -2px -2px 6px rgba(57, 21, 0, 0.5);
  animation: pulse 2.2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(0.92);
    opacity: 0.92;
  }

  50% {
    transform: scale(1.08);
    opacity: 1;
  }
}

@media (max-width: 760px) {
  .hero-panel {
    top: 18px;
    left: 18px;
    right: 18px;
    width: auto;
    padding: 18px 18px 16px;
  }

  .meta-panel {
    right: 18px;
    left: 18px;
    bottom: 18px;
    width: auto;
  }

  .loading-panel {
    bottom: 176px;
    width: calc(100vw - 36px);
  }
}