:root {
  color-scheme: light;
  --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-display: "Kaiti SC", "STKaiti", "KaiTi", serif;
  font-family: var(--font-sans);
  --ink: #59453f;
  --ink-soft: #826d65;
  --paper: #fff9f2;
  --paper-strong: #f6ebdd;
  --rose: #d98a86;
  --rose-dark: #b96d69;
  --sage: #a8b59a;
  --mist: #b8a9c7;
  --honey: #e7b768;
  --night: #48566b;
  --rose-ink: #9a5753;
  --primary-strong: #92504e;
  --line: rgb(89 69 63 / 14%);
  --shadow: 0 18px 50px rgb(74 51 45 / 20%);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --text-xs: 12px;
  --text-sm: 14px;
  --text-md: 16px;
  --text-lg: 20px;
  --text-display: 32px;
  --line-tight: 1.3;
  --line-normal: 1.55;
  --line-relaxed: 1.7;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;
  --control-sm: 40px;
  --control-md: 48px;
  --edge-parent: #a66562;
  --edge-bond: #78876f;
  --edge-muted: #c7b5aa;
  --edge-width: 1.5px;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  overflow: hidden;
  background: #eadbcd;
  color: var(--ink);
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid rgb(231 183 104 / 72%);
  outline-offset: 3px;
}

button:disabled {
  cursor: not-allowed;
  filter: grayscale(0.25);
  opacity: 0.48;
}

img {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.game-shell {
  isolation: isolate;
  position: relative;
  width: min(100vw, 460px);
  height: 100dvh;
  margin: 0 auto;
  overflow: hidden;
  background: var(--paper-strong);
  box-shadow: 0 0 70px rgb(89 63 54 / 22%);
}

.asset-loader {
  position: absolute;
  z-index: 1000;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 40px;
  background:
    linear-gradient(180deg, rgb(54 40 37 / 18%), rgb(54 40 37 / 52%)),
    url("../assets/scenes/journey-title-v1.png") center / cover;
  color: #fffaf3;
}

.asset-loader__content {
  display: grid;
  width: min(100%, 330px);
  gap: 13px;
  text-align: center;
  text-shadow: 0 2px 14px rgb(43 29 25 / 48%);
}

.asset-loader__mark {
  margin: 0;
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 700;
}

.asset-loader p {
  min-height: 24px;
  margin: 0;
  font-size: 14px;
  font-weight: 700;
}

.asset-loader progress {
  width: 100%;
  height: 10px;
  overflow: hidden;
  border: 0;
  border-radius: 5px;
  appearance: none;
  background: rgb(255 255 255 / 30%);
}

.asset-loader progress::-webkit-progress-bar {
  background: rgb(255 255 255 / 30%);
}

.asset-loader progress::-webkit-progress-value {
  background: #f0bf72;
}

.asset-loader progress::-moz-progress-bar {
  background: #f0bf72;
}

.asset-loader .soft-button {
  justify-self: center;
  margin-top: 8px;
  border-color: rgb(255 255 255 / 55%);
  background: rgb(255 250 243 / 94%);
  color: var(--ink);
  text-shadow: none;
}

.game-shell[data-loading="true"] > :not(.asset-loader, .scene-art, .scene-vignette, .ambient) {
  visibility: hidden;
}

.scene-art,
.scene-vignette,
.ambient {
  pointer-events: none;
  position: absolute;
  inset: 0;
}

.scene-art {
  z-index: -4;
  background-position: center;
  background-size: cover;
  transform: scale(1);
  transition: background-image 480ms var(--ease), filter 480ms var(--ease), transform 900ms var(--ease);
}

[data-scene="encounter"] .scene-art {
  background-image: url("../assets/scenes/opening-empty-alley-v1.png");
  transform-origin: 50% 58%;
}

[data-scene="encounter"][data-opening-phase="contact"] .scene-art {
  filter: saturate(1.03) brightness(0.99);
  transform: scale(1.018) translate3d(-0.2%, 0.2%, 0);
}

[data-scene="encounter"][data-opening-phase="look"] .scene-art {
  filter: saturate(1.05) brightness(0.985);
  transform: scale(1.032) translate3d(-0.45%, 0.35%, 0);
}

[data-scene="encounter"][data-opening-phase="choice"] .scene-art {
  filter: saturate(1.04) brightness(0.96);
  transform: scale(1.042) translate3d(-0.6%, 0.45%, 0);
}

[data-scene="home"] .scene-art {
  background-image: url("../assets/scenes/starter-home-depth-v2.png");
}

img[src^="assets/cats/"] { color-scheme: only light; }

[data-scene="title"] .scene-art {
  background-image: url("../assets/scenes/journey-title-v1.png");
  background-position: center;
}

[data-scene="outing"] .scene-art {
  background-image: url("../assets/scenes/outing-courtyard-v1.png");
}

[data-scene="nursery"] .scene-art {
  background-image: url("../assets/scenes/nursery-night-landscape.png");
}

.scene-vignette {
  z-index: -3;
  background:
    linear-gradient(180deg, rgb(57 51 67 / 16%), transparent 28%, transparent 70%, rgb(67 47 42 / 22%)),
    radial-gradient(circle at 50% 45%, transparent 48%, rgb(78 58 57 / 10%) 100%);
}

[data-scene="home"] .scene-vignette {
  background: linear-gradient(180deg, rgb(75 51 44 / 16%), transparent 26%, transparent 65%, rgb(67 44 37 / 30%));
}

[data-scene="title"] .scene-vignette {
  background:
    linear-gradient(90deg, rgb(39 27 24 / 44%) 0%, rgb(54 37 29 / 17%) 43%, transparent 67%),
    linear-gradient(180deg, rgb(53 38 42 / 10%), transparent 56%, rgb(61 40 32 / 24%));
}

.ambient {
  z-index: -2;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgb(255 246 203 / 75%);
  box-shadow: 40px 120px 0 rgb(255 246 203 / 45%), 300px 260px 0 rgb(255 230 178 / 48%), 170px 420px 0 rgb(255 246 203 / 36%);
  animation: drift 8s ease-in-out infinite alternate;
}

.ambient-b {
  inset: auto auto 28% 20%;
  animation-delay: -3s;
  animation-duration: 11s;
}

.eyebrow {
  display: block;
  margin-bottom: 2px;
  color: var(--ink-soft);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.primary-button,
.soft-button,
.chip-button,
.icon-button,
.nav-item {
  border: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.primary-button,
.soft-button {
  min-height: var(--control-md);
  border-radius: var(--radius-md);
  padding: 0 22px;
  font-size: var(--text-sm);
  font-weight: 800;
  transition: transform 160ms var(--ease), box-shadow 160ms var(--ease), background 160ms ease;
}

.primary-button {
  background: linear-gradient(145deg, #a55b57, var(--primary-strong));
  color: white;
  box-shadow: 0 12px 26px rgb(150 79 77 / 34%);
}

.soft-button {
  border: 1px solid rgb(255 255 255 / 56%);
  background: rgb(255 249 242 / 82%);
  box-shadow: 0 8px 22px rgb(78 54 47 / 15%);
}

.primary-button:active,
.soft-button:active,
.chip-button:active,
.nav-item:active {
  transform: translateY(2px) scale(0.98);
}

.icon-button {
  display: grid;
  width: var(--control-sm);
  height: var(--control-sm);
  place-items: center;
  border: 1px solid rgb(255 255 255 / 50%);
  border-radius: 14px;
  background: rgb(255 249 242 / 70%);
}

.glass-panel,
.paper-panel {
  border: 1px solid rgb(255 255 255 / 56%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px) saturate(1.08);
}

.glass-panel {
  background: linear-gradient(145deg, rgb(255 252 247 / 88%), rgb(246 235 221 / 72%));
}

.paper-panel {
  background: #fffaf2;
}

/* Long records keep a quiet in-world scroll cue instead of exposing the host browser chrome. */
:where(
  .sheet,
  .progress-panel,
  .bond-banner,
  .growth-journal,
  .outing-journal,
  .neighbor-panel,
  .tree-scroll,
  .care-shelf__tray
) {
  scrollbar-color: rgb(144 108 88 / 48%) transparent;
  scrollbar-width: thin;
}

.game-shell *::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.game-shell *::-webkit-scrollbar-track,
.game-shell *::-webkit-scrollbar-corner {
  background: transparent;
}

.game-shell *::-webkit-scrollbar-thumb {
  min-height: 48px;
  border: 2px solid transparent;
  border-radius: 999px;
  background: linear-gradient(180deg, rgb(183 142 113 / 68%), rgb(151 109 91 / 64%));
  background-clip: padding-box;
}

.game-shell *::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgb(179 130 103 / 86%), rgb(139 91 79 / 82%));
  background-clip: padding-box;
}

.game-shell *::-webkit-scrollbar-button {
  display: none;
  width: 0;
  height: 0;
}

.visually-hidden,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@keyframes drift {
  from { transform: translate3d(-10px, 8px, 0); opacity: 0.35; }
  to { transform: translate3d(12px, -14px, 0); opacity: 0.85; }
}

@keyframes breathe {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-4px) scale(1.012); }
}

@keyframes float-up {
  from { transform: translate(-50%, -20%) scale(0.75); opacity: 0; }
  30% { opacity: 1; }
  to { transform: translate(-50%, -140%) rotate(var(--spin, 8deg)) scale(1.08); opacity: 0; }
}

@keyframes reveal-in {
  from { transform: translateY(20px) scale(0.85); filter: blur(8px); opacity: 0; }
  to { transform: translateY(0) scale(1); filter: blur(0); opacity: 1; }
}