:root {
  --bg-0: #070b09;
  --bg-1: #0d1310;
  --mint: #3ee6a0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Bricolage Grotesque', sans-serif;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(62,230,160,0.10), transparent 60%),
    radial-gradient(900px 500px at 0% 110%, rgba(150,110,255,0.10), transparent 55%),
    var(--bg-0);
  min-height: 100vh;
  color: #d6f5e6;
}

.mono { font-family: 'JetBrains Mono', monospace; }

.title { font-family: 'Bricolage Grotesque', sans-serif; letter-spacing: -0.03em; }

/* mint palette classes referenced in JS */
.text-mint-100 { color: #d6f5e6; }
.text-mint-200 { color: #a9e9cd; }
.text-mint-300 { color: #7fdcb4; }
.text-mint-400 { color: #56c79a; }
.text-mint-500 { color: #3a9a76; }
.text-mint-600 { color: #2c6b53; }

.card {
  background: linear-gradient(180deg, rgba(20,32,26,0.85), rgba(12,20,16,0.9));
  border: 1px solid rgba(62,230,160,0.15);
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.4);
  backdrop-filter: blur(6px);
}

.step-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: #3ee6a0;
  margin-bottom: 12px;
}

.drop-zone {
  border: 2px dashed rgba(62,230,160,0.3);
  border-radius: 14px;
  padding: 28px 16px;
  text-align: center;
  transition: all 0.2s ease;
  background: rgba(62,230,160,0.03);
}
.drop-zone.drag-over {
  border-color: #3ee6a0;
  background: rgba(62,230,160,0.10);
  transform: scale(1.01);
}

.btn-primary {
  background: linear-gradient(90deg, #3ee6a0, #2fce8a);
  color: #06120c;
  font-weight: 800;
  border: none;
  border-radius: 12px;
  padding: 13px 20px;
  font-size: 16px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 20px rgba(62,230,160,0.25);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 28px rgba(62,230,160,0.4); }
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: rgba(62,230,160,0.08);
  color: #a9e9cd;
  border: 1px solid rgba(62,230,160,0.25);
  border-radius: 10px;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.btn-secondary:hover { background: rgba(62,230,160,0.16); border-color: rgba(62,230,160,0.5); }

.progress-track {
  height: 8px;
  background: rgba(0,0,0,0.4);
  border-radius: 4px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #3ee6a0, #c58bff);
  transition: width 0.15s ease;
}

.roll-wrap {
  overflow-x: auto;
  border: 1px solid rgba(62,230,160,0.15);
  border-radius: 12px;
  background: #0f1512;
}
.roll-wrap canvas { min-width: 640px; }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15,25,20,0.96);
  color: #3ee6a0;
  border: 1px solid rgba(62,230,160,0.4);
  padding: 12px 22px;
  border-radius: 999px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.5);
  z-index: 50;
  animation: toastIn 0.3s ease;
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.fade-in { animation: fadeIn 0.5s ease both; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

input[type="range"] {
  -webkit-appearance: none;
  height: 5px;
  border-radius: 3px;
  background: rgba(62,230,160,0.15);
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #3ee6a0;
  cursor: pointer;
  box-shadow: 0 0 8px rgba(62,230,160,0.6);
}
input[type="range"]::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #3ee6a0;
  border: none;
  cursor: pointer;
}

.hidden { display: none; }