.shukhas {
  --ink: #1e1b16;
  --ink-soft: rgba(30, 27, 22, 0.65);
  --paper: #f7f2e8;
  --paper-strong: #efe7d8;
  --paper-border: #d6c9b3;
  --accent-1: #b75a3b;
  --accent-2: #2c6c61;
  --accent-3: #3b4d86;
  --accent-4: #7a3f5a;
  --shadow: rgba(30, 27, 22, 0.12);
  --success: #2f7a57;
  --danger: #9a3b36;

  color: var(--ink);
}

.shukhas__header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
  margin-block: 1rem 1.5rem;
}

.shukhas__title {
  display: grid;
  gap: 0.35rem;
}

.shukhas__title h1 {
  margin: 0;
}

.shukhas__author {
  margin: 0.2rem 0 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.shukhas__author a {
  color: inherit;
  text-decoration: underline;
}

.shukhas__select {
  padding: 0.35rem 0.5rem;
  border: 1px solid rgba(30, 27, 22, 0.2);
  background: transparent;
  border-radius: 0.4rem;
  color: var(--ink-soft);
}

.shukhas__select--title {
  font-size: 1rem;
  width: max-content;
}

.shukhas__lock {
  margin: 0.2rem 0 0;
  font-size: 0.9rem;
  color: var(--danger);
}

.shukhas__status {
  margin: 0 0 1.25rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.board {
  position: relative;
  --corner-0: var(--accent-1);
  --corner-1: var(--accent-2);
  --corner-2: var(--accent-3);
  --corner-3: var(--accent-4);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  grid-template-areas:
    "zone0 zone1"
    "base base"
    "zone2 zone3";
  gap: 0.75rem;
  padding: 1rem;
  border-radius: 1rem;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.35)),
    repeating-linear-gradient(0deg, rgba(0, 0, 0, 0.035) 0, rgba(0, 0, 0, 0.035) 1px, transparent 1px, transparent 6px),
    var(--paper);
  border: 1px solid var(--paper-border);
  box-shadow: 0 12px 30px var(--shadow);
}

.board::before {
  content: "";
  position: absolute;
  inset: -0.5rem;
  pointer-events: none;
  background:
    linear-gradient(var(--corner-0), var(--corner-0)) 0 0/40% 3px no-repeat,
    linear-gradient(var(--corner-0), var(--corner-0)) 0 0/3px 40% no-repeat,
    linear-gradient(var(--corner-1), var(--corner-1)) 100% 0/40% 3px no-repeat,
    linear-gradient(var(--corner-1), var(--corner-1)) 100% 0/3px 40% no-repeat,
    linear-gradient(var(--corner-2), var(--corner-2)) 0 100%/40% 3px no-repeat,
    linear-gradient(var(--corner-2), var(--corner-2)) 0 100%/3px 40% no-repeat,
    linear-gradient(var(--corner-3), var(--corner-3)) 100% 100%/40% 3px no-repeat,
    linear-gradient(var(--corner-3), var(--corner-3)) 100% 100%/3px 40% no-repeat;
}

.board.is-loading {
  pointer-events: none;
  opacity: 0.92;
}

.zone {
  background: var(--paper-strong);
  border: 1px solid var(--paper-border);
  border-radius: 0.8rem;
  padding: 0.75rem;
  display: grid;
  grid-template-rows: auto 1fr;
  min-height: 9rem;
  position: relative;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.zone--answer {
  grid-template-rows: 1fr auto;
}

.zone:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 18px rgba(30, 27, 22, 0.12);
}


.zone__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}

.zone--answer .zone__header {
  order: 2;
  margin-top: 0.5rem;
  margin-bottom: 0;
}

.zone--answer .zone__items {
  order: 1;
}

.zone__name {
  font-weight: 700;
  color: var(--ink);
  opacity: 0;
  transition: opacity 200ms ease;
}

.zone[data-revealed="true"] .zone__name {
  opacity: 1;
}

.zone__hint {
  font-size: 0.7rem;
}

.zone__items {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-content: flex-start;
}

.zone--base {
  grid-area: base;
  min-height: 6rem;
}

.zone[data-zone="zone-0"] { grid-area: zone0; }
.zone[data-zone="zone-1"] { grid-area: zone1; }
.zone[data-zone="zone-2"] { grid-area: zone2; }
.zone[data-zone="zone-3"] { grid-area: zone3; }

.tile {
  position: relative;
  background: #fff;
  border: 3px solid transparent;
  border-color: var(--guess-top, transparent) var(--guess-right, transparent) var(--guess-bottom, transparent) var(--guess-left, transparent);
  border-radius: 0.65rem;
  padding: 0.5rem 0.65rem;
  font-size: 0.95rem;
  cursor: grab;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 200ms ease;
  box-shadow: 0 4px 10px rgba(30, 27, 22, 0.08);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.tile:hover,
.tile:focus-visible {
  transform: translateY(-2px) scale(1.01);
  box-shadow: 0 8px 16px rgba(30, 27, 22, 0.14);
}

.tile:focus-visible {
  outline: 2px solid rgba(30, 27, 22, 0.25);
  outline-offset: 2px;
}

.tile.dragging {
  opacity: 0.5;
  cursor: grabbing;
  transition: none;
  will-change: transform;
}

.tile--chosen {
  cursor: grabbing;
  transition: none;
  will-change: transform;
}

.tile--ghost {
  opacity: 0.35;
  box-shadow: none;
  transform: scale(0.98);
}

.tile--wiggle {
  animation: tile-wiggle 180ms ease;
}

.tile.is-locked {
  cursor: not-allowed;
  opacity: 0.85;
}

.shukhas__actions {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.75rem;
}

.shukhas__actions-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.shukhas__actions-row--spread {
  width: 100%;
  justify-content: space-between;
  align-items: center;
}

.shukhas__actions-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  padding: 0.65rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--paper-border);
  background: #fff;
  cursor: pointer;
  position: relative;
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn[data-shortcut]::after {
  content: attr(data-shortcut);
  position: absolute;
  left: 50%;
  bottom: -1.9rem;
  transform: translateX(-50%) translateY(4px);
  background: rgba(30, 27, 22, 0.92);
  color: var(--paper);
  font-size: 0.7rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease, transform 150ms ease;
  white-space: nowrap;
  z-index: 10;
}

.btn[data-shortcut]:hover::after,
.btn[data-shortcut]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.btn--icon {
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn--icon-flip .btn__icon {
  transform: scaleX(-1);
}

.btn__icon {
  display: inline-flex;
}

.btn__icon svg {
  width: 1.2rem;
  height: 1.2rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn--primary .btn__icon svg {
  fill: currentColor;
  stroke: none;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(30, 27, 22, 0.12);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.btn--primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

.btn__spinner {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  border: 2px solid transparent;
  border-top-color: var(--paper);
  display: inline-block;
  opacity: 0;
  position: absolute;
  inset: 0;
  margin: auto;
}

.btn.is-loading .btn__spinner {
  opacity: 1;
  animation: spin 1s linear infinite;
}

.btn.is-loading .btn__icon {
  opacity: 0;
}

.shukhas__toast {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  transform: translateX(-50%) translateY(10px);
  background: rgba(30, 27, 22, 0.92);
  color: var(--paper);
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
  z-index: 20;
}

.shukhas__toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.shukhas__typeahead {
  position: fixed;
  top: 5rem;
  right: 1.25rem;
  background: rgba(30, 27, 22, 0.85);
  color: var(--paper);
  padding: 0.4rem 0.7rem;
  border-radius: 0.6rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease;
  z-index: 20;
}

.shukhas__typeahead.is-visible {
  opacity: 1;
}

.zone.is-solved {
  background: linear-gradient(135deg, rgba(47, 122, 87, 0.18), rgba(47, 122, 87, 0.05));
  border-color: rgba(47, 122, 87, 0.5);
  box-shadow: 0 10px 20px rgba(47, 122, 87, 0.18);
  animation: solved-glow 900ms ease;
}

.confetti,
.dislikes {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0;
  transition: opacity 300ms ease;
}

.confetti.is-active,
.dislikes.is-active {
  opacity: 1;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes zone-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

@keyframes tile-wiggle {
  0% { transform: translateX(0); }
  35% { transform: translateX(-3px); }
  70% { transform: translateX(3px); }
  100% { transform: translateX(0); }
}

@keyframes solved-glow {
  0% { transform: scale(1); box-shadow: 0 6px 12px rgba(47, 122, 87, 0.1); }
  50% { transform: scale(1.01); box-shadow: 0 12px 20px rgba(47, 122, 87, 0.22); }
  100% { transform: scale(1); box-shadow: 0 10px 20px rgba(47, 122, 87, 0.18); }
}

@media (max-width: 720px) {
  .board {
    grid-template-columns: 1fr;
    grid-template-areas:
      "zone0"
      "zone1"
      "base"
      "zone2"
      "zone3";
    gap: 0.5rem;
    padding: 0.6rem;
    border-radius: 0.8rem;
  }

  .shukhas__header {
    flex-direction: column;
    align-items: flex-start;
    margin-block: 0.75rem 1rem;
    gap: 1rem;
  }

  .shukhas__actions-row {
    flex-direction: column;
  }

  .shukhas__actions-row--spread {
    align-items: stretch;
  }

  .shukhas__actions {
    margin-top: 1rem;
    gap: 0.5rem;
  }

  .zone {
    padding: 0.6rem;
    min-height: 7rem;
  }

  .zone--base {
    min-height: 5rem;
  }

  .tile {
    font-size: 0.85rem;
    padding: 0.4rem 0.5rem;
  }

  .btn {
    padding: 0.55rem 0.9rem;
  }

  .btn--icon {
    width: 2.4rem;
    height: 2.4rem;
  }

  .shukhas__toast {
    width: calc(100% - 2.5rem);
    text-align: center;
  }

  .shukhas__typeahead {
    top: 5.5rem;
  }
}