:root {
  --bg: #0b1021;
  --card: rgba(255,255,255,0.06);
  --card-border: rgba(255,255,255,0.12);
  --primary: #6cf6ff;
  --accent: #f0bfff;
  --muted: #b7c1e1;
  --shadow: 0 20px 60px rgba(0,0,0,0.35);
  --radius: 16px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(108,246,255,0.14), transparent 30%),
              radial-gradient(circle at 80% 0%, rgba(240,191,255,0.12), transparent 32%),
              radial-gradient(circle at 60% 80%, rgba(108,246,255,0.1), transparent 32%),
              var(--bg);
  color: #e9edff;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 28px 18px 60px;
}
.shell {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: 1.2fr 0.9fr;
  gap: 20px;
}
@media (max-width: 960px) {
  .shell { grid-template-columns: 1fr; }
}
header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--card-border);
  background: linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.03));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.title {
  font-size: 22px;
  letter-spacing: 0.3px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}
.pill {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.06);
  font-size: 12px;
  letter-spacing: 0.4px;
  color: var(--muted);
}
.pill.subtle {
  border-color: rgba(108,246,255,0.35);
  color: var(--primary);
}
.card {
  border: 1px solid var(--card-border);
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}
.full {
  grid-column: 1 / -1;
}
#canvas-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.canvas-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1; /* keep square drawing area */
  min-height: 320px;
}
#draw {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.04), transparent 60%);
}
.hint {
  position: absolute;
  top: 16px;
  right: 16px;
  padding: 8px 12px;
  border-radius: 12px;
  background: rgba(11,16,33,0.65);
  border: 1px solid var(--card-border);
  color: var(--muted);
  font-size: 12px;
  display: flex;
  gap: 6px;
  align-items: center;
}
.actions {
  display: flex;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid var(--card-border);
  background: rgba(0,0,0,0.15);
}
.scores {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
  padding: 12px 14px 14px;
  margin-top: auto;
}
.scores .item {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.04);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-size: 13px;
}
.scores .value { color: #fff; font-weight: 600; }
.leaderboard {
  padding: 18px;
  display: grid;
  gap: 12px;
}
.lb-item {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  display: grid;
  grid-template-columns: 140px 1fr auto;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.04);
}
.lb-preview {
  position: relative;
  width: 130px;
  height: 130px;
}
.lb-canvas {
  width: 100%;
  height: 100%;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: radial-gradient(circle at 30% 30%, rgba(108,246,255,0.12), rgba(255,255,255,0.02));
  display: block;
}
.lb-rank {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 6px 10px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: rgba(11,16,33,0.65);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.3px;
}
.lb-text { color: #fff; font-weight: 600; }
.lb-meta { color: var(--muted); font-size: 12px; }
.lb-score {
  text-align: right;
  color: var(--primary);
  font-weight: 700;
  font-size: 18px;
}
.criteria {
  margin-top: 14px;
  padding: 18px 18px 10px;
  display: grid;
  gap: 10px;
}
.criteria-title {
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.3px;
}
.crit-item {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.04);
  color: #fff;
}
.crit-item small { color: var(--muted); display: block; margin-top: 6px; line-height: 1.5; }
.section-head {
  padding: 18px 18px 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.section-title { font-weight: 700; font-size: 16px; }