/* Sudoku app-style window overlay */
body.modal-open {
  overflow: hidden;
}

.sudoku-overlay {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 30% 20%, rgba(255, 255, 255, 0.06), transparent 35%),
              radial-gradient(circle at 70% 80%, rgba(0, 0, 0, 0.25), transparent 45%),
              rgba(5, 8, 15, 0.48);
  backdrop-filter: blur(12px) saturate(110%);
  -webkit-backdrop-filter: blur(12px) saturate(110%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2200;
}

.sudoku-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.sudoku-window {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(900px, 94vw);
  max-height: min(86vh, 720px);
  background: linear-gradient(145deg, rgba(236, 221, 221, 0.35), rgba(245,245,245,0.9));
  border-radius: 20px;
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow:
    0 24px 80px rgba(0,0,0,0.35),
    0 8px 24px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(255,255,255,0.9);
  color: #0f172a;
  overflow: hidden;
  transform-origin: var(--sudoku-origin-x, 50vw) var(--sudoku-origin-y, 50vh);
  transform: translate(-50%, -50%) scale(0.86) translateY(28px) rotateX(-8deg);
  opacity: 0;
  transition:
    transform 0.42s cubic-bezier(0.18, 0.89, 0.24, 1.1),
    opacity 0.26s ease;
}

.sudoku-overlay.visible .sudoku-window.pop {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1) translateY(0) rotateX(0deg);
}

@media (prefers-reduced-motion: reduce) {
  .sudoku-window {
    transform: translate(-50%, -50%) scale(1);
    transition: opacity 0.18s ease;
  }
  .sudoku-overlay.visible .sudoku-window.pop {
    transform: translate(-50%, -50%) scale(1);
  }
}

.sudoku-window-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: linear-gradient(180deg, rgba(228, 228, 228, 0.4), rgba(128, 128, 128, 0.4));
  border-bottom: 1px solid rgba(0,0,0,0.04);
  position: relative;
  cursor: move;
  cursor: grab;
  user-select: none;
}

.sudoku-window-bar:active {
  cursor: grabbing;
}

.sudoku-window-bar .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  box-shadow: 0 1px 0 rgba(255,255,255,0.6), inset 0 1px 2px rgba(0,0,0,0.28);
}
.sudoku-window-bar .dot.red { background: #ff5f56; }
.sudoku-window-bar .dot.yellow { background: #ffbd2e; }
.sudoku-window-bar .dot.green { background: #27c93f; }

.sudoku-close {
  display: none;
}

.sudoku-window-bar .dot {
  cursor: pointer;
  transition: transform 0.15s ease, filter 0.15s ease;
}

.sudoku-window-bar .dot.red:hover,
.sudoku-window-bar .dot.yellow:hover {
  transform: scale(1.15);
  filter: brightness(1.1);
}

.sudoku-window-body {
  padding: 22px 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sudoku-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  justify-content: space-between;
}

.sudoku-kicker {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  margin: 0 0 4px;
  color: #475569;
}

.sudoku-sub {
  margin: 6px 0 0;
  color: #334155;
}

.sudoku-pill {
  background: #0f172a;
  color: #f8fafc;
  padding: 0.4rem 0.85rem;
  border-radius: 1000px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.16);
}

.sudoku-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.sudoku-card {
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(0,0,0,0.04);
  border-radius: 14px;
  padding: 14px 14px 16px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.08);
}

.sudoku-label {
  margin: 0 0 4px;
  color: #475569;
  font-size: 0.9rem;
}

.sudoku-card h3 {
  margin: 0 0 4px;
  color: #0f172a;
}

.sudoku-note {
  margin: 0;
  color: #334155;
}

.sudoku-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.pill.ghost {
  background: transparent;
  color: #0f172a;
  border: 1.8px dashed rgba(15, 23, 42, 0.25);
}
.pill.ghost:disabled {
  opacity: 0.75;
  cursor: not-allowed;
}

/* Sudoku project card button styling */
.sudoku-card .pill {
  background: var(--main-accent);
  color: var(--main-text);
  border: transparent;
}

.sudoku-card .pill:hover,
.sudoku-card .pill:focus-visible {
  background: transparent;
  color: var(--main-accent);
  border-color: var(--main-accent);
}

@media (max-width: 640px) {
  .sudoku-window {
    max-height: none;
  }
  .sudoku-header {
    flex-direction: column;
    align-items: flex-start;
  }
}