:root {
  color-scheme: light dark;
  --bg: #f8fafc;
  --fg: #0f172a;
  --muted: #475569;
  --border: rgba(148, 163, 184, 0.32);
  --accent: #2563eb;
  --accent-soft: #dbeafe;
  --surface: #ffffff;
}

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--surface);
  color: var(--fg);
}

#root {
  display: block;
  padding: 2rem 2.4rem 2.8rem;
  max-width: 1040px;
  margin: 0 auto;
}

#editorHint {
  background: rgba(37, 99, 235, 0.08);
  border: 1px solid rgba(37, 99, 235, 0.25);
  border-radius: 16px;
  padding: 0.9rem 1.2rem;
  color: #1d4ed8;
  font-weight: 500;
}

.step-stack {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

.step-block {
  border: none;
  border-radius: 18px;
  background: #fff;
  padding: 1.4rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.step-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  background: rgba(37, 99, 235, 0.16);
  color: #1d4ed8;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.step-header h2 {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.step-detail {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
  max-width: 780px;
}

.step-footnote {
  margin: 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.step-field {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.field-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 0.95rem;
}

.step-textarea {
  min-height: 120px;
  resize: vertical;
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 0.75rem 0.95rem;
  font: inherit;
  line-height: 1.6;
  background: rgba(255, 255, 255, 0.95);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  overflow-y: hidden;
  color: var(--fg);
}

.step-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.step-textarea.readonly {
  background: rgba(248, 250, 252, 0.75);
  color: var(--muted);
}

.support-panel {
  border: none;
  border-radius: 18px;
  background: #fff;
  padding: 1.4rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.step-block,
.support-panel {
  width: 100%;
}

.support-title {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}


.copy-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  padding: 0.4rem 0.9rem;
  font: inherit;
  color: var(--accent);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.copy-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.copy-btn:not(:disabled):hover {
  box-shadow: 0 10px 22px rgba(37, 99, 235, 0.16);
  transform: translateY(-1px);
}

textarea {
  font: inherit;
}

#advancedControls {
  border-radius: 18px;
  border: none;
  background: rgba(248, 250, 252, 0.92);
  display: block;
}

#advancedControls summary {
  cursor: pointer;
  font-weight: 600;
  padding: 0.75rem 1rem;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  justify-content: space-between;
}

#advancedControls summary::-webkit-details-marker {
  display: none;
}



.advanced-heading {
  font-size: 0.95rem;
}

.advanced-badge {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  background: rgba(148, 163, 184, 0.24);
  color: #475569;
  flex-shrink: 0;
}

#advancedControls[data-mode='session'] .advanced-badge {
  background: rgba(37, 99, 235, 0.18);
  color: #1d4ed8;
}

#advancedControls[data-mode='realm'] .advanced-badge {
  background: rgba(30, 64, 175, 0.1);
  color: #1e40af;
}

#advancedControls[data-mode='account'] .advanced-badge {
  background: rgba(16, 185, 129, 0.18);
  color: #047857;
}

.advanced-body {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding: 0 1rem 1.2rem;
}

.step-block,
.support-panel {
  width: 100%;
}

.session-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.session-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.session-controls input {
  font: inherit;
  padding: 0.45rem 0.75rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  min-width: 200px;
}

.session-controls button {
  font: inherit;
  padding: 0.45rem 0.95rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.session-controls button:hover {
  border-color: var(--accent);
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.15);
  transform: translateY(-1px);
}

.session-hint {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

#modeSwitch {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.mode-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.mode-options {
  display: flex;
  gap: 0.5rem;
}

.mode-option {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.45rem 0.95rem;
  background: rgba(248, 250, 252, 0.9);
  cursor: pointer;
  font-weight: 500;
  transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.mode-option[aria-checked='true'] {
  border-color: var(--accent);
  background: rgba(37, 99, 235, 0.12);
  color: #1d4ed8;
}

.mode-option.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.notice {
  border-radius: 16px;
  border: 1px solid rgba(37, 99, 235, 0.2);
  background: rgba(219, 234, 254, 0.6);
  padding: 0.75rem 1rem;
  font-size: 0.92rem;
  color: #1d4ed8;
}

#errorBox {
  border-radius: 16px;
  border: 1px solid rgba(239, 68, 68, 0.35);
  background: rgba(254, 226, 226, 0.75);
  padding: 0.75rem 1rem;
  color: #7f1d1d;
  font-size: 0.92rem;
}

.mapping-wrapper {
  border-radius: 14px;
}

.mapping {
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(248, 250, 252, 0.85);
  padding: 0.8rem;
}

.mapping summary {
  font-weight: 600;
  cursor: pointer;
}

.mapping pre {
  margin: 0;
  max-height: 220px;
  overflow: auto;
  font-size: 0.85rem;
}

.chip-panel {
  margin-top: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(248, 250, 252, 0.92);
  padding: 1rem 1.25rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.chip-header {
  font-weight: 600;
  font-size: 0.95rem;
}

.chip-subheader {
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.chip-empty {
  font-size: 0.92rem;
  color: var(--muted);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.chip-list.restored {
  margin-top: 0.3rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.15);
  color: #1d4ed8;
  font-size: 0.85rem;
  line-height: 1.3;
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.chip.restored {
  background: rgba(34, 197, 94, 0.18);
  color: #065f46;
  border-color: rgba(5, 150, 105, 0.25);
}

.chip-label {
  display: inline-flex;
  align-items: center;
  max-width: 220px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chip-action {
  border: none;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font: inherit;
  padding: 0.1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  transition: transform 0.15s ease, background 0.15s ease;
}

.chip-action:hover {
  background: rgba(15, 23, 42, 0.08);
  transform: translateY(-1px);
}

.chip-action:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.chip-action.restore {
  font-size: 0.8rem;
}

@media (max-width: 720px) {
  #root {
    padding: 1.4rem 1.1rem 2rem;
    margin: 0;
  }

  .pane-grid {
    grid-template-columns: 1fr;
  }
}