:root {
  --bgp-primary: #0a4ec2;
  --bgp-secondary: #052c6e;
  --bgp-accent: #0bc5ea;
  --bgp-text: #0f172a;
  --bgp-muted: #64748b;
  --bgp-border: #dbe3f2;
  --bgp-surface: #ffffff;
  --bgp-bg: #f5f9ff;
  --bgp-radius: 14px;
  --bgp-shadow: 0 12px 30px rgba(7, 39, 110, 0.14);
}

.bgp-wrap {
  max-width: 1240px;
  margin: 46px auto;
  padding: 0 20px;
  color: var(--bgp-text);
  font-family: 'Segoe UI', Tahoma, sans-serif;
}

.bgp-head {
  text-align: center;
  margin-bottom: 32px;
}

.bgp-kicker {
  display: inline-block;
  margin: 0 0 10px;
  padding: 6px 14px;
  border-radius: 999px;
  background: #e9f2ff;
  color: var(--bgp-primary);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 700;
}

.bgp-head h2 {
  margin: 0 0 10px;
  font-size: 42px;
  line-height: 1.1;
  color: var(--bgp-secondary);
}

.bgp-sub {
  margin: 0;
  color: var(--bgp-muted);
  font-size: 17px;
}

.bgp-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
}

.bgp-panel {
  border: 1px solid var(--bgp-border);
  border-radius: var(--bgp-radius);
  background: var(--bgp-surface);
  box-shadow: var(--bgp-shadow);
}

.bgp-controls {
  padding: 22px;
}

.bgp-preview {
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.bgp-preview-head h3 {
  margin: 0 0 6px;
}

.bgp-preview-head p {
  margin: 0 0 14px;
  color: var(--bgp-muted);
}

.bgp-stage {
  margin-top: 4px;
  border: 1px dashed var(--bgp-border);
  border-radius: 12px;
  min-height: 300px;
  display: grid;
  place-items: center;
  background: #f8fbff;
  padding: 12px;
}

.bgp-stage svg {
  width: 100%;
  max-width: 520px;
  height: auto;
}

.bgp-stage.bgp-invalid {
  border-color: #ef4444;
  background: #fff5f5;
}

.bgp-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 14px;
}

.bgp-field label {
  font-size: 13px;
  font-weight: 700;
}

.bgp-field input,
.bgp-field select,
.bgp-field textarea {
  border: 1px solid #cfd9ee;
  border-radius: 10px;
  padding: 10px 11px;
  font-size: 14px;
  background: #fff;
  color: #0f172a;
}

.bgp-field input:focus,
.bgp-field select:focus,
.bgp-field textarea:focus {
  outline: none;
  border-color: var(--bgp-primary);
  box-shadow: 0 0 0 3px rgba(10, 78, 194, 0.15);
}

.bgp-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.bgp-actions {
  margin-top: 6px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.bgp-btn {
  border: 0;
  border-radius: 10px;
  padding: 10px 15px;
  font-weight: 700;
  cursor: pointer;
}

.bgp-btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--bgp-primary), var(--bgp-secondary));
}

.bgp-btn-ghost {
  color: var(--bgp-primary);
  background: #e8f0ff;
}

@media (max-width: 1024px) {
  .bgp-grid {
    grid-template-columns: 1fr;
  }

  .bgp-head h2 {
    font-size: 34px;
  }
}

@media (max-width: 640px) {
  .bgp-row {
    grid-template-columns: 1fr;
  }

  .bgp-head h2 {
    font-size: 28px;
  }
}