/* Evil 17 - Modern UI Enhancements (scoped by #evil-17-container) */

#evil-17-container {
  --e17-bg: radial-gradient(1200px 600px at 10% -10%, rgba(255, 215, 0, 0.06), transparent 60%),
            radial-gradient(900px 500px at 110% 20%, rgba(214, 48, 49, 0.08), transparent 60%),
            linear-gradient(180deg, #0b0b0b, #121212 40%, #181111 100%);
  --e17-gold: #ffd700;
  --e17-gold-soft: rgba(255, 215, 0, 0.35);
  --e17-red: #8B0000;
  --e17-orange: #FF4500;
  --e17-text: #f5f5f5;
  --e17-text-dim: #c7c7c7;
  --e17-card: rgba(0,0,0,0.55);
  --e17-border: rgba(255,255,255,0.12);
  --e17-border-strong: rgba(255,255,255,0.24);
  --e17-blur: saturate(120%) blur(6px);
}

#evil-17-container .main {
  background: var(--e17-bg);
}

/* Hero enhancements */
#evil-17-container .hero__title {
  letter-spacing: 0.5px;
  text-shadow: 0 2px 18px rgba(255, 215, 0, 0.15);
}
#evil-17-container .hero__subtitle {
  text-shadow: 0 1px 8px rgba(0,0,0,0.35);
}
#evil-17-container .legendary-grid {
  box-shadow: 0 0 0 1px var(--e17-border), 0 10px 40px rgba(0,0,0,0.5), 0 0 30px var(--e17-gold-soft) inset;
}
#evil-17-container .grid-preview {
  background-image: linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px),
                    linear-gradient(180deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: calc(300px/9) calc(300px/9);
  border-radius: 10px;
}

/* Puzzle cards */
#evil-17-container .puzzle-card {
  backdrop-filter: var(--e17-blur);
  background: var(--e17-card);
  border: 1px solid var(--e17-border);
}
#evil-17-container .puzzle-card__header {
  border-bottom: 1px dashed var(--e17-border);
  padding-bottom: 8px;
}
#evil-17-container .puzzle-card__title {
  color: var(--e17-text);
}
#evil-17-container .puzzle-card__difficulty {
  background: linear-gradient(135deg, var(--e17-red), var(--e17-orange));
  color: #fff;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.5px;
}
#evil-17-container .puzzle-card__description {
  color: var(--e17-text-dim);
}
#evil-17-container .puzzle-card__button {
  background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 50%, #d63031 100%);
  color: #fff;
  border: 1px solid var(--e17-border-strong);
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
#evil-17-container .puzzle-card__button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 107, 0.35);
}

/* Game grid & controls */
#evil-17-container .sudoku-grid {
  border: 1px solid var(--e17-border-strong);
  border-radius: 12px;
  overflow: hidden;
}
#evil-17-container .controls__numbers .num-button {
  border: 1px solid var(--e17-border);
}
#evil-17-container .button--hint {
  background: linear-gradient(135deg, var(--e17-gold), #ffe37f);
  color: #1a1a1a;
}

/* Mentor panel */
#evil-17-container .mentor-panel {
  backdrop-filter: var(--e17-blur);
  background: var(--e17-card);
  border: 1px solid var(--e17-border);
  box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}
#evil-17-container .mentor-header h4 {
  background: linear-gradient(135deg, var(--e17-gold), var(--e17-orange));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Lore & Library */
#evil-17-container .lore-card,
#evil-17-container .technique-card,
#evil-17-container .leaderboard {
  backdrop-filter: var(--e17-blur);
  background: var(--e17-card);
  border: 1px solid var(--e17-border);
}

/* Responsive tweaks */
@media (max-width: 768px) {
  #evil-17-container .hero__title { font-size: 2.3rem; }
  #evil-17-container .legendary-grid .grid-preview { width: 260px; height: 260px; }
}