.sk-game { max-width: 480px; margin: 1rem auto 3rem; padding: 0 1rem; position: relative; z-index: 1; }

.panel {
  background: var(--card); border: 3px solid var(--card-border); border-radius: var(--radius);
  padding: 1.5rem; box-shadow: var(--shadow); text-align: center; backdrop-filter: blur(10px);
}
.panel.hidden { display: none; }
.panel h1 {
  margin: 0.25rem 0 0.5rem; font-size: clamp(1.8rem, 5vw, 2.8rem);
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent; padding-bottom: 0.1em;
}
.sk-icon { font-size: 4rem; filter: drop-shadow(0 4px 10px rgba(0,0,0,0.3)); animation: bob 3s ease-in-out infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.tagline { margin: 0 0 1.5rem; color: var(--text-soft); font-weight: 600; }

.row { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin: 1rem 0 1.5rem; }
.row label { display: flex; flex-direction: column; gap: 0.3rem; font-weight: 700; color: var(--text); text-align: left; }
.row select { font: inherit; padding: 0.5rem 0.75rem; border-radius: 12px; border: 2px solid var(--primary); background: white; color: #1f1b2e; cursor: pointer; }

.setup-actions { display: flex; gap: 0.75rem; justify-content: center; flex-wrap: wrap; align-items: center; }
.btn-primary {
  font: inherit; font-weight: 800; padding: 0.7rem 1.6rem; border-radius: 999px; border: none;
  background: linear-gradient(90deg, var(--primary), var(--accent)); color: white; cursor: pointer;
  box-shadow: var(--shadow); transition: transform 0.15s ease; font-size: 1.1rem; text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.btn-primary:hover { transform: translateY(-3px) scale(1.03); }
.btn-secondary {
  display: inline-block; margin-left: 0.75rem; padding: 0.7rem 1.4rem; border-radius: 999px; text-decoration: none;
  color: var(--text); background: var(--card); border: 2px solid var(--card-border); font-weight: 700;
}

.sk-header { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-bottom: 1rem; }
.hud { display: flex; flex-direction: column; align-items: center; background: rgba(0,0,0,0.15); border-radius: 12px; padding: 0.5rem; }
.hud-label { font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-soft); font-weight: 700; }
.hud-value { font-size: 1.15rem; font-weight: 800; color: var(--text); }

.sk-board {
  display: grid; grid-template-columns: repeat(9, 1fr); width: min(420px, 92vw); aspect-ratio: 1;
  margin: 0 auto 1rem; background: #1f1b2e; border: 3px solid #1f1b2e; border-radius: 8px; overflow: hidden;
}
.sk-cell {
  background: white; color: #1f1b2e; display: flex; align-items: center; justify-content: center;
  font-size: clamp(1rem, 4.5vw, 1.5rem); font-weight: 700; cursor: pointer; border: 1px solid #cfcae0;
  user-select: none; aspect-ratio: 1;
}
.sk-cell.given { color: #1f1b2e; font-weight: 800; background: #efecf8; cursor: default; }
.sk-cell.user { color: #4a2fc7; }
.sk-cell.selected { background: #ffe680; }
.sk-cell.conflict { color: #d11; background: #ffdede; }
.sk-cell.bx-r { border-right: 3px solid #1f1b2e; }
.sk-cell.bx-b { border-bottom: 3px solid #1f1b2e; }

.sk-pad { display: grid; grid-template-columns: repeat(9, 1fr); gap: 4px; max-width: 420px; margin: 0 auto 1rem; }
.pad-num {
  font: inherit; font-weight: 800; font-size: 1.2rem; padding: 0.5rem 0; border-radius: 8px; border: none;
  background: linear-gradient(135deg, var(--primary), var(--accent)); color: white; cursor: pointer; box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}
.pad-num:active { transform: scale(0.92); }

.actions { display: flex; gap: 0.5rem; justify-content: center; flex-wrap: wrap; }
.btn-action {
  font: inherit; font-weight: 700; padding: 0.55rem 1rem; border-radius: 999px; border: 2px solid var(--card-border);
  background: var(--card); color: var(--text); cursor: pointer; box-shadow: var(--shadow); transition: transform 0.15s ease;
}
.btn-action:hover { transform: translateY(-2px); }
.btn-action.go { background: linear-gradient(90deg, var(--primary), var(--accent)); color: white; border: none; }

.feedback { min-height: 1.4em; font-weight: 700; margin-top: 0.75rem; }
.feedback.good { color: #2e8b3a; } .feedback.bad { color: #b32b2b; }
.bad { color: #d11; font-weight: 800; }