@import url("https://fonts.googleapis.com/css2?family=Cinzel:wght@400;500;600;700&family=Josefin+Sans:wght@300;400;500;600;700&display=swap");

:root {
  --color-primary: #1c1917;
  --color-secondary: #44403c;
  --color-cta: #ca8a04;
  --color-background: #fafaf9;
  --color-text: #0c0a09;
  --color-focus: #fbbf24;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);

  --z-base: 1;
  --z-board: 10;
  --z-hud: 20;
  --z-modal: 30;
  --z-tooltip: 40;

  --asset-bg-main: url("assets/themes/royal/bg_palace_premium.png?v=5");
  --asset-tile-main: url("assets/themes/royal/tile_square_premium.png?v=5");
  --asset-btn-primary: url("assets/themes/royal/btn_gold.png");

  --asset-bg-fallback: radial-gradient(circle at 30% 20%, #3b2f1d 0%, #1c1917 56%, #0c0a09 100%);
  --asset-tile-fallback: linear-gradient(145deg, #f5d77f 0%, #ca8a04 55%, #8f6500 100%);
  --asset-btn-fallback: linear-gradient(145deg, #e0a91d 0%, #ca8a04 60%, #8f6500 100%);

  --asset-bg: var(--asset-bg-main), var(--asset-bg-fallback);
  --asset-tile: var(--asset-tile-main), var(--asset-tile-fallback);
  --asset-btn: var(--asset-btn-primary), var(--asset-btn-fallback);

  --tile-size: 68px;
  --tile-height: 68px;
  --tile-font-size: 20px;
  --text-min: 14px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

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

body {
  font-family: "Josefin Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--color-background);
  background: var(--asset-bg-fallback);
  overflow: hidden;
}

.app-shell {
  width: 100%;
  max-width: 430px;
  min-height: 100dvh;
  margin: 0 auto;
  padding: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  background-image: var(--asset-bg);
  background-size: cover;
  background-position: center;
  position: relative;
  z-index: var(--z-base);
}

.app-shell__main {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: stretch;
}

.board-stage,
.game-stage {
  flex: 1;
  min-height: 0;
  display: flex;
  justify-content: center;
  align-items: stretch;
}

.game-board {
  flex: 1;
  width: 100%;
  min-height: 0;
  height: 100%;
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(250, 250, 249, 0.28);
  background:
    linear-gradient(180deg, rgba(4, 10, 28, 0.08), rgba(6, 10, 18, 0.14)),
    linear-gradient(180deg, rgba(250, 250, 249, 0.05), rgba(12, 10, 9, 0.1));
  box-shadow: inset 0 0 0 1px rgba(250, 250, 249, 0.08), var(--shadow-lg);
  z-index: var(--z-board);
}

.hud-panel {
  border: 1px solid rgba(250, 250, 249, 0.2);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, rgba(28, 25, 23, 0.78), rgba(12, 10, 9, 0.7));
  backdrop-filter: blur(6px);
  box-shadow: var(--shadow-md);
  z-index: var(--z-hud);
}

.hud-panel--top {
  padding: var(--space-xs);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-xs);
}

.hud-panel--bottom {
  padding: var(--space-sm);
  display: grid;
  gap: var(--space-sm);
}

.hud-panel__item,
.hud-item {
  min-height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(250, 250, 249, 0.08);
  border: 1px solid rgba(250, 250, 249, 0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.hud-panel__label,
.hud-label {
  font-family: "Cinzel", serif;
  font-size: var(--text-min);
  line-height: 1;
  letter-spacing: 0.04em;
  color: rgba(250, 250, 249, 0.86);
}

.hud-panel__value {
  font-size: 16px;
  line-height: 1;
  font-weight: 700;
  color: #fff8e7;
}

.slot-tray {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: var(--space-xs);
}

.slot-tray__slot,
.slot-tray__cell,
.slot-box {
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 50px;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(255, 215, 0, 0.4);
  background: rgba(12, 10, 9, 0.65);
  display: grid;
  place-items: center;
  transition: background-color 200ms ease, transform 200ms ease;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.4);
}

.slot-box img {
  width: 72%;
  height: 72%;
  object-fit: contain;
}

.action-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-xs);
}

.action-bar__btn {
  width: 100%;
}

.btn {
  min-height: 44px;
  padding: 0 var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(250, 250, 249, 0.24);
  background: linear-gradient(145deg, #736e69 0%, #44403c 62%, #1c1917 100%);
  color: #fffdf6;
  font-family: "Cinzel", serif;
  font-size: var(--text-min);
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: 0 4px 0 rgba(54, 48, 41, 0.95), var(--shadow-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 180ms ease, filter 180ms ease, box-shadow 180ms ease;
}

.btn--gold {
  background-image: var(--asset-btn);
  background-size: cover;
  background-position: center;
  box-shadow: 0 4px 0 rgba(117, 82, 12, 0.9), var(--shadow-sm);
}

.btn:hover {
  filter: brightness(1.06);
}

.btn:active {
  transform: translateY(1px);
  box-shadow: 0 2px 0 rgba(54, 48, 41, 0.95);
}

.btn--gold:active {
  box-shadow: 0 2px 0 rgba(117, 82, 12, 0.9);
}

.btn:focus-visible,
.game-board__tile:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.game-board__tile {
  position: absolute;
  width: var(--tile-size);
  height: var(--tile-height);
  border: none;
  background-image: var(--asset-tile);
  background-size: 100% 100%;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  transition: transform 120ms ease, filter 120ms ease, opacity 120ms ease;
  z-index: var(--z-board);
  background-color: transparent;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

.game-board__tile--gold {
  background-image: var(--asset-tile);
}

.game-board__tile:hover:not(.is-masked) {
  filter: brightness(1.08) drop-shadow(0 8px 16px rgba(0, 0, 0, 0.32));
  transform: translateY(-2px) scale(1.03);
}

.game-board__tile:active:not(.is-masked) {
  transform: scale(0.95);
}

.game-board__tile-content,
.game-board__tile-icon {
  width: 84%;
  height: 84%;
  display: block;
  object-fit: contain;
  object-position: center center;
  margin-top: 0;
  transition: transform 150ms cubic-bezier(0.175, 0.885, 0.32, 1.275);
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
}

.game-board__tile:hover:not(.is-masked) .game-board__tile-icon {
  transform: scale(1.04);
}

.game-board__tile.is-masked,
.tile.is-masked {
  pointer-events: none;
  filter: brightness(0.66) saturate(0.8) contrast(0.95);
  opacity: 0.98;
}

.game-board__tile.is-masked::after,
.tile.is-masked::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(38, 32, 20, 0.14), rgba(18, 16, 10, 0.26));
  pointer-events: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(12, 10, 9, 0.72);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.modal__panel {
  width: min(92vw, 360px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(250, 250, 249, 0.24);
  background: linear-gradient(180deg, rgba(28, 25, 23, 0.95), rgba(12, 10, 9, 0.93));
  box-shadow: var(--shadow-xl);
  padding: var(--space-lg);
  text-align: center;
}

.modal__title {
  margin: 0 0 var(--space-sm);
  font-family: "Cinzel", serif;
  font-size: 28px;
  line-height: 1.1;
  color: #ffe7a8;
}

.modal__body {
  margin: 0;
  font-size: var(--text-min);
  color: rgba(250, 250, 249, 0.92);
}

.modal__actions {
  margin-top: var(--space-md);
  display: grid;
  gap: var(--space-xs);
}

.modal--hidden,
.tooltip--hidden,
.hidden {
  display: none !important;
}

.tooltip {
  position: fixed;
  z-index: var(--z-tooltip);
  max-width: 240px;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(12, 10, 9, 0.94);
  color: #fff8e7;
  font-size: var(--text-min);
  line-height: 1.3;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}

#ad-banner-container {
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.app-press {
  transform: scale(0.94) !important;
  filter: brightness(1.08);
  box-shadow: 0 0 0 2px rgba(255, 215, 0, 0.35), 0 8px 18px rgba(0, 0, 0, 0.28) !important;
}

.app-pulse {
  animation: app-pulse-kf 240ms ease-out;
}

@keyframes app-pulse-kf {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.08);
  }

  100% {
    transform: scale(1);
  }
}

@media (max-width: 375px) {
  :root {
    --tile-size: 44px;
    --tile-font-size: 18px;
  }
}

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