@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap");

:root {
  --pb-bg: #f4f1ea;
  --pb-panel: #ffffff;
  --pb-ink: #141414; 
  --pb-muted: #6b7280;
  --pb-border: #e2ddd2;
  --pb-accent: #0f766e;
  --pb-accent-2: #f97316;
  --pb-shadow: 0 18px 50px rgba(20, 20, 20, 0.12);
  --pb-radius: 18px;
}

body {
  background: var(--pb-bg);
  color: var(--pb-ink);
  font-family: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
}

#pdfbuilder-root {
  display: grid;
  gap: 16px;
}

.pb-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border-radius: var(--pb-radius);
  border: 1px solid var(--pb-border);
  background: linear-gradient(135deg, #ffffff 0%, #f9f6f1 100%);
  box-shadow: 0 10px 30px rgba(15, 118, 110, 0.08);
}

.pb-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pb-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.pb-subtitle {
  font-size: 12px;
  color: var(--pb-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.pb-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pb-actions-stack {
  flex-direction: column;
  align-items: stretch;
}

.pb-btn {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--pb-panel);
  color: var(--pb-ink);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.pb-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.pb-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(15, 118, 110, 0.15);
}

.pb-btn-primary {
  background: var(--pb-accent);
  color: #fff;
}

.pb-btn-outline {
  border-color: var(--pb-accent);
  color: var(--pb-accent);
  background: transparent;
}

.pb-btn-ghost {
  border-color: var(--pb-border);
  background: #fff;
}

.pb-layout {
  display: grid;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.pb-panel {
  background: var(--pb-panel);
  border: 1px solid var(--pb-border);
  border-radius: var(--pb-radius);
  padding: 18px;
  box-shadow: 0 10px 25px rgba(20, 20, 20, 0.06);
}

.pb-panel-preview {
  padding: 0;
  overflow: hidden;
}

.pb-panel-title {
  font-weight: 700;
  padding: 16px 18px;
  border-bottom: 1px solid var(--pb-border);
}

.pb-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--pb-muted);
  margin-bottom: 8px;
}

.pb-textarea {
  width: 100%;
  min-height: 160px;
  border-radius: 14px;
  border: 1px solid var(--pb-border);
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.5;
  background: #fdfcf9;
  font-family: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
}

.pb-textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.2);
  border-color: var(--pb-accent);
}

.pb-hint {
  color: var(--pb-muted);
  font-size: 12px;
  margin: 8px 2px 0;
}

.pb-divider {
  height: 1px;
  background: var(--pb-border);
  margin: 16px 0;
}

.pb-upload {
  position: relative;
  border: 1px dashed var(--pb-border);
  border-radius: 16px;
  padding: 16px;
  background: #f8f5f0;
  text-align: left;
  margin-bottom: 12px;
}

.pb-upload input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.pb-upload-title {
  font-weight: 600;
  margin-bottom: 6px;
}

.pb-upload-meta {
  font-size: 12px;
  color: var(--pb-muted);
}

.pb-usecase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.pb-usecase-card {
  text-align: left;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--pb-border);
  background: #fff;
  cursor: pointer;
  transition: border 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.pb-usecase-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(15, 118, 110, 0.12);
}

.pb-usecase-card.is-active {
  border-color: var(--pb-accent);
  box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.15);
}

.pb-usecase-title {
  font-weight: 700;
  font-size: 12px;
  margin-bottom: 4px;
}

.pb-usecase-desc {
  font-size: 11px;
  color: var(--pb-muted);
}

.pb-settings {
  margin-top: 14px;
  border: 1px solid var(--pb-border);
  border-radius: 14px;
  padding: 10px 12px;
  background: #faf7f1;
}

.pb-settings-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  border: 0;
  background: transparent;
  font-weight: 600;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--pb-ink);
  cursor: pointer;
}

.pb-settings-toggle.is-open .pb-settings-chevron {
  transform: rotate(180deg);
}

.pb-settings-chevron {
  transition: transform 0.2s ease;
}

.pb-settings-body {
  margin-top: 10px;
}

.pb-reference-preview {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.pb-reference-preview img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--pb-border);
  box-shadow: var(--pb-shadow);
}

.pb-reference-meta {
  font-size: 12px;
  color: var(--pb-muted);
}

.pb-muted {
  color: var(--pb-muted);
}

.pb-status {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 12px;
  background: #f2f2f2;
  color: var(--pb-ink);
}

.pb-status-info {
  background: #eef2ff;
  color: #1d4ed8;
}

.pb-status-success {
  background: #ecfdf3;
  color: #047857;
}

.pb-status-error {
  background: #fef2f2;
  color: #b91c1c;
}

.pb-preview-wrap {
  background: radial-gradient(circle at top, #f7f4ee 0%, #efe9dd 100%);
  padding: 18px;
  min-height: 70vh;
}

.pb-preview {
  width: 100%;
  height: calc(100vh - 260px);
  border: 0;
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--pb-shadow);
}

@media (max-width: 980px) {
  .pb-layout {
    grid-template-columns: 1fr;
  }

  .pb-preview {
    height: 70vh;
  }
}