/* BILLIONNAIRE AI — signal surface contract.
   Loaded last so every signal view follows the active palette instead of the
   legacy blue/gold decoration in signal_design.css. */

.signal,
.signal.visual-signal {
  position: relative;
  min-width: 0;
  overflow: hidden;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius, 16px);
  background: var(--panel);
  color: var(--txt);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--bg) 35%, transparent);
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.signal:before,
.signal.visual-signal:before {
  width: 1px;
  background: var(--green);
  opacity: 1;
}

.signal.sell:before,
.signal:has(.trade-sell):before {
  background: var(--red);
}

.signal:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--green) 42%, var(--line));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--bg) 48%, transparent);
}

.signal-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.signal-head .symbol {
  min-width: 0;
}

.signal .coin {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--green) 9%, var(--panel2));
  border: 1px solid color-mix(in srgb, var(--green) 24%, var(--line));
  color: var(--green);
  box-shadow: none;
}

.signal .coin.blue {
  background: color-mix(in srgb, var(--green) 9%, var(--panel2));
  border-color: color-mix(in srgb, var(--green) 24%, var(--line));
  color: var(--green);
}

.signal .symbol b {
  display: block;
  overflow-wrap: anywhere;
  color: var(--txt);
  font-size: 15px;
  font-weight: 750;
  letter-spacing: .01em;
}

.signal .symbol small {
  display: block;
  margin-top: 3px;
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 10px;
  line-height: 1.4;
}

.signal-head > .badge,
.signal-meta > .badge {
  white-space: nowrap;
  border-radius: 999px;
  font-size: 9px;
  letter-spacing: .05em;
}

.signal .badge.trade-buy:not(.muted):not(.gold) {
  background: color-mix(in srgb, var(--success) 14%, transparent);
  border-color: color-mix(in srgb, var(--success) 42%, transparent);
  color: var(--success);
}

.signal .badge.trade-sell:not(.muted):not(.gold) {
  background: color-mix(in srgb, var(--red) 12%, transparent);
  border-color: color-mix(in srgb, var(--red) 42%, transparent);
  color: var(--red);
}

.signal-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 14px 0 10px;
}

.signal .levels,
.signal-system-levels,
.visual-levels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  margin: 14px 0 12px;
  padding: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--line);
}

.signal .levels > div,
.signal-system-levels > div,
.visual-levels > div {
  min-width: 0;
  padding: 11px 9px;
  background: var(--panel2);
}

.signal .levels small,
.signal-system-levels small,
.visual-levels small {
  display: block;
  margin-bottom: 6px;
  overflow-wrap: anywhere;
  color: var(--muted);
  font-size: 9px;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.signal .levels b,
.signal-system-levels b,
.visual-levels b {
  display: block;
  overflow-wrap: anywhere;
  color: var(--txt);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.signal .levels b.negative,
.visual-levels b.negative { color: var(--red); }
.signal .levels b.positive,
.visual-levels b.positive { color: var(--success); }

.visual-levels em {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 10px;
  font-style: normal;
}

.signal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 4px;
  color: var(--muted);
  font-size: 10px;
}

.signal-access-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.signal-access-actions .badge { margin-right: auto; }
.signal-access-actions .btn { min-height: 36px; }

.locked-signal {
  background: var(--panel);
  border-color: color-mix(in srgb, var(--gold) 35%, var(--line));
}

.locked-signal:before { background: var(--gold); }
.locked-signal .locked-levels span {
  background: var(--panel2);
  border: 1px solid var(--line);
  color: var(--muted);
}

.visual-signal-lock {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--gold) 34%, var(--line));
  border-radius: 10px;
  background: color-mix(in srgb, var(--gold) 7%, var(--panel2));
  color: var(--gold);
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
}

.signal-detail-levels,
.signal-facts-grid {
  gap: 8px;
}

.signal-detail-levels p,
.signal-facts-grid > div {
  border-color: var(--line);
  border-radius: 10px;
  background: var(--panel2);
}

.signal-detail-levels strong,
.signal-facts-grid strong { color: var(--txt); }

.signal-risk-fields output { color: var(--green); }

@media (max-width: 700px) {
  .signal,
  .signal.visual-signal { padding: 16px; }
  .signal-head { grid-template-columns: auto minmax(0, 1fr); }
  .signal-head > .badge:last-child { grid-column: 2; justify-self: start; }
  .signal .levels,
  .signal-system-levels,
  .visual-levels { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .signal .levels > div:nth-child(3),
  .visual-levels > div:nth-child(3) { border-top: 1px solid var(--line); }
  .signal-access-actions { align-items: stretch; flex-wrap: wrap; }
  .signal-access-actions .badge { flex-basis: 100%; }
  .signal-access-actions .btn { flex: 1 1 calc(50% - 8px); }
}

@media (max-width: 360px) {
  .signal .levels,
  .signal-system-levels,
  .visual-levels { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .signal { transition: none; }
  .signal:hover { transform: none; }
}