body {
  min-height: 100vh;
}
.signal-shell {
  max-width: 920px;
  margin: auto;
  padding: calc(20px + env(safe-area-inset-top))
    max(16px, env(safe-area-inset-right))
    calc(28px + env(safe-area-inset-bottom))
    max(16px, env(safe-area-inset-left));
}
.signal-page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}
.signal-page-head h1 {
  font-size: 25px;
}
.back-link {
  color: var(--cyan);
  text-decoration: none;
  font-size: 13px;
}
.session-badge {
  display: block;
  margin: 10px 0;
  color: var(--cyan);
  font-size: 12px;
}
.page-status {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 16px;
}
.page-signal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
.page-risk {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}
.empty {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--muted);
}
@media (max-width: 620px) {
  .page-signal-grid {
    grid-template-columns: 1fr;
  }
  .signal-page-head {
    flex-direction: column;
  }
}
.section-divider {
  margin-top: 34px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.history-summary {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 16px 0;
}
.history-stat {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #0b1b2d;
}
.history-stat span,
.history-stat strong {
  display: block;
}
.history-stat span {
  color: var(--muted);
  font-size: 11px;
}
.history-stat strong {
  margin-top: 7px;
  font-size: 18px;
}
@media (max-width: 620px) {
  .history-summary {
    grid-template-columns: repeat(2, 1fr);
  }
}
.export-btn {
  border: 0;
  border-radius: 10px;
  background: var(--cyan);
  color: #041713;
  padding: 11px 16px;
  min-height: 44px;
  font-weight: 600;
  cursor: pointer;
}
.export-btn:disabled {
  opacity: 0.45;
  cursor: wait;
}
.target-price {
  color: var(--amber);
}
.pdf-btn {
  margin-right: 8px;
  background: var(--text);
}
@media print {
  body {
    background: #fff !important;
    color: #111 !important;
  }
  .signal-shell {
    max-width: none;
    padding: 10mm;
  }
  .back-link,
  .export-btn,
  .export-controls,
  .session-badge {
    display: none !important;
  }
  .signal-card,
  .history-stat,
  .card {
    box-shadow: none !important;
    background: #fff !important;
    color: #111 !important;
    border: 1px solid #aaa !important;
    break-inside: avoid;
  }
  .page-risk,
  .page-status,
  .signal-code,
  .signal-reasons,
  .signal-metrics span {
    color: #444 !important;
  }
  .up,
  .down,
  .target-price,
  .signal-score {
    color: #111 !important;
  }
  .page-signal-grid {
    grid-template-columns: 1fr 1fr;
  }
  table {
    color: #111 !important;
  }
  th,
  td {
    border-bottom: 1px solid #bbb !important;
  }
}