:root {
  color-scheme: light;
  font-family: Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #f2eee7;
  color: #282522;
  --ks-background: #f2eee7;
  --ks-surface: rgba(255, 253, 249, 0.92);
  --ks-text: #282522;
  --ks-muted: #706a62;
  --ks-gold: #bb8a4a;
  --ks-gold-deep: #8a5e2c;
  --ks-error: #9b3434;
  --ks-safe-top: env(safe-area-inset-top, 0px);
  --ks-safe-right: env(safe-area-inset-right, 0px);
  --ks-safe-bottom: env(safe-area-inset-bottom, 0px);
  --ks-safe-left: env(safe-area-inset-left, 0px);
}

* {
  box-sizing: border-box;
}

html,
body,
#keystar-shell {
  width: 100%;
  height: 100%;
  min-width: 100%;
  min-height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  overscroll-behavior: none;
  background: var(--ks-background);
}

body {
  position: fixed;
  inset: 0;
}

#keystar-shell {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  width: 100dvw;
  height: 100dvh;
  isolation: isolate;
}

#unity-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  outline: 0;
  background: #1d1c1b;
  touch-action: none;
}

#unity-canvas:focus-visible {
  outline: 3px solid var(--ks-gold);
  outline-offset: -3px;
}

.keystar-overlay {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding:
    max(24px, var(--ks-safe-top))
    max(24px, var(--ks-safe-right))
    max(24px, var(--ks-safe-bottom))
    max(24px, var(--ks-safe-left));
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 24%, rgba(187, 138, 74, 0.20), transparent 42%),
    linear-gradient(145deg, #f7f4ee 0%, #eae3d9 100%);
  opacity: 1;
  visibility: visible;
  transition: opacity 180ms ease, visibility 180ms linear;
}

.keystar-overlay.is-hidden {
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
}

.keystar-atmosphere {
  position: absolute;
  inset: -25%;
  pointer-events: none;
  background:
    radial-gradient(circle at 30% 45%, rgba(255, 255, 255, 0.62), transparent 18%),
    radial-gradient(circle at 72% 58%, rgba(187, 138, 74, 0.12), transparent 20%);
  animation: keystar-ambience 8s ease-in-out infinite alternate;
}

.keystar-tools {
  position: absolute;
  top: max(16px, var(--ks-safe-top));
  right: max(16px, var(--ks-safe-right));
  z-index: 12;
  display: flex;
  align-items: center;
  gap: 8px;
}

#keystar-shell[data-state="ready"] .keystar-midi-status {
  display: none;
}

.keystar-tool-button,
.keystar-midi-status {
  min-height: 44px;
  border: 1px solid rgba(138, 94, 44, 0.24);
  border-radius: 10px;
  background: rgba(255, 253, 249, 0.78);
  color: var(--ks-text);
  box-shadow: 0 8px 24px rgba(65, 48, 31, 0.08);
  backdrop-filter: blur(12px);
}

.keystar-tool-button {
  width: 44px;
  padding: 0;
  cursor: pointer;
  font: inherit;
  font-size: 20px;
}

.keystar-midi-status {
  display: flex;
  align-items: center;
  padding: 0 14px;
  font-size: 12px;
  font-weight: 700;
}

.keystar-tool-button:hover {
  background: #fffdf9;
}

.keystar-tool-button:focus-visible,
.keystar-primary-button:focus-visible {
  outline: 3px solid var(--ks-gold-deep);
  outline-offset: 3px;
}

.keystar-loading-card {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(520px, 88vw);
  min-height: 300px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 36px clamp(24px, 5vw, 48px);
  border: 1px solid rgba(138, 94, 44, 0.18);
  border-radius: 18px;
  background: var(--ks-surface);
  box-shadow:
    0 28px 72px rgba(65, 48, 31, 0.16),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  text-align: center;
  backdrop-filter: blur(18px);
}

.keystar-logo {
  display: block;
  width: min(100%, 380px);
  max-height: 92px;
  object-fit: contain;
}

.keystar-tagline {
  margin: -2px 0 12px;
  color: var(--ks-muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.keystar-state {
  width: min(100%, 420px);
}

.keystar-state[hidden] {
  display: none !important;
}

.keystar-state h1 {
  margin: 0 0 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(20px, 4vw, 26px);
}

.keystar-state p {
  margin: 8px auto 0;
  max-width: 390px;
  color: var(--ks-muted);
  font-size: 14px;
  line-height: 1.55;
}

.keystar-progress-track {
  width: 100%;
  height: 11px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(187, 138, 74, 0.17);
  box-shadow: inset 0 1px 2px rgba(65, 48, 31, 0.10);
}

.keystar-progress-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #9f6f35, #d1ae77);
  box-shadow: 0 0 14px rgba(187, 138, 74, 0.38);
  transition: width 120ms linear;
}

.keystar-progress-copy {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  color: var(--ks-muted);
  font-size: 13px;
  text-align: left;
}

.keystar-progress-copy strong {
  flex: none;
  color: var(--ks-text);
}

.keystar-primary-button {
  min-width: 160px;
  min-height: 48px;
  padding: 11px 24px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(180deg, #c9a166, #aa783d);
  color: #fff;
  box-shadow:
    0 10px 28px rgba(138, 94, 44, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.42);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 800;
}

.keystar-primary-button:hover {
  filter: brightness(1.06);
}

.keystar-message-card {
  padding: 18px;
  border: 1px solid rgba(155, 52, 52, 0.25);
  border-radius: 12px;
  background: rgba(155, 52, 52, 0.06);
}

.keystar-message-card .keystar-primary-button {
  margin-top: 18px;
}

.keystar-phone-rotate {
  width: 58px;
  height: 36px;
  margin: 0 auto 16px;
  border: 3px solid var(--ks-muted);
  border-radius: 7px;
  animation: keystar-rotate 1.7s ease-in-out infinite;
}

.keystar-warning {
  position: absolute;
  z-index: 20;
  left: 50%;
  bottom: max(14px, var(--ks-safe-bottom));
  display: none;
  width: min(680px, calc(100% - 32px - var(--ks-safe-left) - var(--ks-safe-right)));
  padding: 11px 14px;
  transform: translateX(-50%);
  border-radius: 10px;
  background: #fff5da;
  color: #5f471e;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.22);
  font-size: 13px;
  text-align: center;
}

.keystar-warning.is-visible {
  display: block;
}

noscript {
  position: absolute;
  z-index: 30;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--ks-background);
}

@keyframes keystar-ambience {
  from { transform: translate3d(-1%, 0, 0) scale(1); }
  to { transform: translate3d(1%, -1%, 0) scale(1.03); }
}

@keyframes keystar-rotate {
  0%, 100% { transform: rotate(-8deg); }
  50% { transform: rotate(8deg); }
}

@media (orientation: portrait) and (pointer: coarse) {
  .keystar-loading-card {
    width: min(520px, 88vw);
  }
}

@media (max-height: 520px) {
  .keystar-overlay {
    padding:
      max(12px, var(--ks-safe-top))
      max(16px, var(--ks-safe-right))
      max(12px, var(--ks-safe-bottom))
      max(16px, var(--ks-safe-left));
  }

  .keystar-loading-card {
    width: min(560px, 76vw);
    min-height: 0;
    gap: 9px;
    padding: 18px 28px;
  }

  .keystar-logo {
    max-height: 56px;
  }

  .keystar-tagline {
    margin-bottom: 4px;
    font-size: 10px;
  }
}

@media (max-width: 680px) {
  .keystar-midi-status {
    max-width: 190px;
    padding: 0 10px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-contrast: more) {
  .keystar-loading-card,
  .keystar-tool-button,
  .keystar-midi-status {
    border-color: #5d421f;
  }
}