:root {
  color-scheme: dark;
  --bg: #0a0a0a;
  --surface: #121212;
  --surface-alt: #171717;
  --border: #2a2a2a;
  --text: #e7e7e7;
  --text-dim: #9aa0a6;
  --accent: #c6cbd1;
  --accent-strong: #e3e7eb;
  --corner: 16px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  min-height: 100vh;
}

.page {
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(32px + var(--uni-top-offset, 0px)) 24px 80px;
}

.hero {
  background: linear-gradient(135deg, rgba(198, 203, 209, 0.08), transparent 55%);
  border: 1px solid var(--border);
  border-radius: var(--corner);
  padding: 32px;
  margin-bottom: 24px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 10px;
  color: var(--text-dim);
  margin: 0 0 12px;
}

h1 {
  margin: 0 0 12px;
  font-size: 32px;
}

.lede {
  margin: 0;
  color: var(--text-dim);
  max-width: 640px;
  line-height: 1.6;
}

.hero-actions {
  margin-top: 20px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.mode-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}

.tab {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: 0.2s ease;
}

.tab.is-active {
  border-color: var(--accent-strong);
  color: var(--accent-strong);
  background: rgba(198, 203, 209, 0.1);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 24px;
  align-items: start;
}

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

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--corner);
  padding: 24px;
}

.panel.export {
  position: sticky;
  top: calc(24px + var(--uni-top-offset, 0px));
  height: fit-content;
}

.panel h2 {
  margin-top: 0;
}

.panel-lede {
  color: var(--text-dim);
  margin-top: -8px;
  margin-bottom: 20px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.module {
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.module h3 {
  margin-top: 0;
}

.module p {
  color: var(--text-dim);
}

.input-row {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

input[type="text"],
input[type="number"] {
  flex: 1;
  background: #0f0f0f;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  color: var(--text);
}

.slider {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
  font-size: 13px;
}

.slider input {
  width: 100%;
}

.value {
  font-size: 12px;
  color: var(--accent);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #0f0f0f;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 12px;
}

.chip button {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12px;
}

.source-grid {
  display: grid;
  gap: 10px;
}

.toggle-group {
  margin-top: 12px;
}

.toggle-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.toggle-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.toggle-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #0f0f0f;
  font-size: 12px;
}

.source-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
}

.source-row input {
  width: 90px;
}

.value-total {
  margin-top: 12px;
  color: var(--text-dim);
}

.btn {
  background: var(--accent-strong);
  color: #111;
  border: none;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}

.export-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

#upload-ark {
  display: none;
}

#json-output {
  background: #0e0e0e;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  max-height: 480px;
  overflow: auto;
  font-size: 12px;
  color: var(--accent-strong);
}

.placeholder-list {
  color: var(--text-dim);
  line-height: 1.6;
}

.hint {
  color: var(--text-dim);
  font-style: italic;
}

.debug-card {
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 16px;
  color: var(--text-dim);
}