:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-elev: #1c2230;
  --border: #30363d;
  --text: #c9d1d9;
  --text-muted: #8b949e;
  --accent: #58a6ff;
  --green: #3fb950;
  --yellow: #d29922;
  --red: #f85149;
  --brand: #ff5a8a;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "SF Pro Text", Inter, system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  min-height: 100vh;
}

a { color: var(--accent); }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  background: linear-gradient(180deg, #11161e, #0d1117);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 12px rgba(255, 90, 138, 0.7);
  align-self: center;
}
.brand h1 {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.brand small {
  color: var(--text-muted);
  font-size: 12px;
}

.status-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.status-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--text-muted);
}
.status-pill.ok { color: var(--green); border-color: rgba(63, 185, 80, 0.4); }
.status-pill.warn { color: var(--yellow); border-color: rgba(210, 153, 34, 0.4); }
.status-pill.err { color: var(--red); border-color: rgba(248, 81, 73, 0.4); }

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
  padding: 22px 28px 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.span-6 { grid-column: span 6; }
.span-12 { grid-column: span 12; }

@media (max-width: 1080px) {
  .span-6 { grid-column: span 12; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
  gap: 16px;
  flex-wrap: wrap;
}
.card-header h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.card-header p {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 12px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.form label > span {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

select, input[type="text"], input[type="date"], textarea {
  width: 100%;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  font-family: inherit;
  transition: border-color 120ms;
}
select:focus, textarea:focus, input:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { resize: vertical; min-height: 110px; }

.radio-row, .tags-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.radio, .tag {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 7px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}
.radio input, .tag input { margin: 0; accent-color: var(--brand); }
.radio:has(input:checked), .tag:has(input:checked) {
  border-color: var(--brand);
  background: rgba(255, 90, 138, 0.1);
  color: var(--brand);
}

.btn {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  border-radius: 7px;
  padding: 9px 16px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: transform 80ms, background 120ms, border-color 120ms;
}
.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--brand);
  border-color: var(--brand);
  color: #0d1117;
  font-weight: 600;
}
.btn-primary:hover { background: #ff7aa2; border-color: #ff7aa2; }
.btn-ghost { background: transparent; }

.form-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}
.form-feedback {
  margin: 0;
  font-size: 12px;
  color: var(--text-muted);
  min-height: 16px;
}
.form-feedback.ok { color: var(--green); }
.form-feedback.err { color: var(--red); }

.rules-extracted {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed var(--border);
}
.rules-extracted h3 {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.rule-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  cursor: pointer;
  transition: border-color 120ms, transform 80ms;
}
.rule-card:hover { border-color: var(--brand); transform: translateY(-1px); }
.rule-card[data-cat="anti_rule"] { border-left-color: var(--red); }
.rule-card[data-cat="pattern_chiusura"] { border-left-color: var(--green); }
.rule-card[data-cat="gancio"] { border-left-color: var(--yellow); }
.rule-card[data-cat="segnale_fit"] { border-left-color: var(--brand); }

.rule-cat {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 8px;
  border-radius: 999px;
  white-space: nowrap;
}
.rule-text {
  font-size: 13px;
  line-height: 1.5;
}
.rule-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}
.rule-score {
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.heatmap-wrapper {
  position: relative;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px;
  overflow: auto;
}
canvas#heatmap {
  display: block;
  width: 100%;
  height: auto;
  cursor: crosshair;
}
.heatmap-tooltip {
  position: absolute;
  background: rgba(0, 0, 0, 0.9);
  color: var(--text);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 11px;
  pointer-events: none;
  border: 1px solid var(--border);
  display: none;
  z-index: 5;
}
.legend {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 10px;
  font-size: 11px;
  color: var(--text-muted);
}
.legend-cell {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  vertical-align: middle;
  margin-right: 4px;
  border: 1px solid var(--border);
}
.legend-cell.hi-0 { background: #1c2230; }
.legend-cell.hi-1 { background: #2d3a4f; }
.legend-cell.hi-2 { background: #3f6ea3; }
.legend-cell.hi-3 { background: #ff5a8a; }
.legend-cell.hi-4 { background: #ff2a6a; }

.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filters select, .filters input { width: auto; min-width: 120px; }

.rules-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 10px;
}
.rules-list .empty {
  grid-column: 1 / -1;
  color: var(--text-muted);
  text-align: center;
  padding: 30px;
  font-size: 13px;
}

.rule-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
}
.rule-modal.hidden { display: none; }
.rule-modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  max-width: 720px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow);
}
.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
}

.modal-section {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.modal-section h4 {
  margin: 0 0 6px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-muted);
}

.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  padding: 8px 28px;
  background: rgba(13, 17, 23, 0.92);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-muted);
  backdrop-filter: blur(6px);
}

.hidden { display: none !important; }