:root {
  --bg: #f4f1e7;
  --ink: #1f1e1a;
  --muted: #666154;
  --card: #fffdf6;
  --line: #d8d0ba;
  --brand: #9f3d2f;
  --brand-soft: #f0d7cf;
  --ok: #1f7a58;
  --warn: #b35a00;
  --bad: #ab1f2d;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% 10%, #fff9ed 0%, var(--bg) 46%, #ece4d2 100%);
  min-height: 100vh;
}

.bg-glow {
  position: fixed;
  border-radius: 999px;
  filter: blur(90px);
  opacity: 0.45;
  pointer-events: none;
  z-index: 0;
}

.bg-glow-a {
  width: 320px;
  height: 320px;
  background: #d6f0e3;
  top: -40px;
  right: 6%;
}

.bg-glow-b {
  width: 280px;
  height: 280px;
  background: #f5cfbd;
  bottom: -20px;
  left: 5%;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1200px, 94vw);
  margin: 1.25rem auto 3rem auto;
  display: grid;
  gap: 1rem;
}

.hero {
  background: linear-gradient(135deg, #21201a, #3a3225);
  color: #fff8ec;
  border-radius: 16px;
  padding: 1.25rem;
  border: 1px solid #3e372b;
}

.hero-actions {
  margin-top: 0.8rem;
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: #f2c29d;
}

.hero h1 {
  margin: 0.35rem 0 0.55rem 0;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  font-size: clamp(1.25rem, 3vw, 2rem);
}

.subtitle {
  margin: 0;
  color: #f9ecd9;
  max-width: 72ch;
}

.grid {
  display: grid;
  gap: 1rem;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 4px 14px rgba(55, 43, 18, 0.08);
  transition: all 0.3s ease-in-out;
}

.card[data-collapsed="true"] {
  padding: 0.75rem 1rem;
}

.card[data-collapsed="true"] > h2 {
  margin-bottom: 0;
}

.card[data-collapsed="true"] > *:not(h2) {
  display: none;
}

.card h2 {
  margin: 0 0 0.8rem 0;
  font-size: 1rem;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  user-select: none;
}

.card-toggle-btn {
  display: inline-block;
  width: 1.2em;
  height: 1.2em;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: inherit;
  font-size: 1rem;
  transition: transform 0.2s ease;
  flex-shrink: 0;
}

.card-toggle-btn::before {
  content: "▼";
  display: inline-block;
  transition: transform 0.2s ease;
}

.card[data-collapsed="true"] .card-toggle-btn::before {
  transform: rotate(-90deg);
}

.segment-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
  margin: 0 0 0.75rem 0;
}

.segment-title {
  margin: 0;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #8a7b60;
}

.segment-mode-switch {
  display: inline-flex;
  gap: 0.45rem;
}

.segment-mode-button[aria-pressed="true"] {
  background: var(--brand);
  color: #fff8f4;
  border-color: #8f3528;
}

.segment-edit-container {
  display: grid;
  gap: 0.6rem;
}

.segment-preview-panel {
  display: grid;
  gap: 0.55rem;
}

.segment-preview-code {
  max-height: 420px;
}

.language-section {
  display: grid;
  gap: 0.8rem;
}

.language-top-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 0.75rem;
}

.language-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.language-chip.is-active {
  background: var(--brand);
  color: #fff8f4;
  border-color: #8f3528;
}

.language-controls {
  display: grid;
  gap: 0.45rem;
}

.language-add-wrap {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.45rem;
}

.language-completeness {
  display: grid;
  gap: 0.35rem;
  border: 1px solid #e4d7bb;
  border-radius: 10px;
  background: #fffaf0;
  padding: 0.65rem;
}

.language-completeness-item {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.84rem;
}

.language-completeness-item > span:last-child {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.language-flag-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: #5f594b;
}

.language-flag-toggle input {
  width: auto;
  margin: 0;
}

.language-derived-summary {
  display: grid;
  gap: 0.2rem;
}

.language-editor {
  display: grid;
  gap: 0.45rem;
}

.language-editor-list {
  max-height: 360px;
  overflow: auto;
  background: #fffefb;
}

.language-editor-row {
  display: grid;
  gap: 0.25rem;
}

.language-editor-row label {
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.77rem;
  color: #5f594b;
}

.generated-target-list {
  display: grid;
  gap: 0.75rem;
}

.generated-target-card {
  border: 1px solid #dccfaf;
  border-radius: 12px;
  background: #fffaf0;
  padding: 0.75rem;
  display: grid;
  gap: 0.45rem;
}

.generated-target-title {
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.82rem;
  color: #433a2d;
}

.stack {
  display: grid;
  gap: 0.6rem;
}

.field {
  display: grid;
  gap: 0.28rem;
}

.field-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

label {
  font-weight: 650;
  font-size: 0.85rem;
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #cfc6b1;
  border-radius: 10px;
  background: #fffefb;
  padding: 0.55rem 0.65rem;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid #f2c8aa;
  border-color: #c88456;
}

input.field-invalid,
select.field-invalid,
textarea.field-invalid {
  background: #fff7f6;
}

input.field-invalid-bad,
select.field-invalid-bad,
textarea.field-invalid-bad {
  border-color: var(--bad);
}

input.field-invalid-warn,
select.field-invalid-warn,
textarea.field-invalid-warn {
  border-color: var(--warn);
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.hint.ok {
  color: var(--ok);
}

.hint.warn {
  color: var(--warn);
}

.hint.bad {
  color: var(--bad);
}

.field-error {
  margin: 0;
  font-size: 0.8rem;
}

.table-field {
  min-width: 12rem;
}

.table-field textarea,
.table-field input {
  min-width: 100%;
}

.field-error.warn {
  color: var(--warn);
}

.field-error.bad {
  color: var(--bad);
}

.code {
  margin: 0;
  background: #1f1f1f;
  color: #e7f3e8;
  border-radius: 10px;
  border: 1px solid #2e2e2e;
  padding: 0.7rem;
  max-height: 280px;
  overflow: auto;
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.8rem;
  line-height: 1.4;
}

.code.compact {
  max-height: 140px;
}

.story-toolbar {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}

.locale-toolbar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.locale-cell {
  min-width: 14rem;
}

.locale-missing {
  background: #fff3ef;
  border-color: var(--bad);
}

.story-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 0.8rem;
}

.simulator-panel {
  min-width: 250px;
}

.simulator-panel.hidden {
  display: none;
}

.sim-heading {
  margin: 0.75rem 0 0.35rem 0;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #5f594b;
}

.sim-list {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.2rem;
}

.sim-list li {
  font-size: 0.84rem;
}

.sim-controls {
  display: grid;
  gap: 0.5rem;
  border: 1px solid #e4d7bb;
  border-radius: 10px;
  background: #fff9ef;
  padding: 0.6rem;
  margin-bottom: 0.55rem;
}

.sim-field-row {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.story-graph {
  position: relative;
  min-height: 360px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background:
    radial-gradient(circle at 12% 14%, rgba(159, 61, 47, 0.08), transparent 30%),
    linear-gradient(180deg, #fffef9, #f6f1e4);
  overflow: hidden;
  cursor: grab;
}

.story-graph.is-panning {
  cursor: grabbing;
}

.story-viewport {
  position: absolute;
  inset: 0;
  transform: translate(0, 0);
  transform-origin: top left;
}

.story-edges {
  position: absolute;
  left: 0;
  top: 0;
  pointer-events: none;
}

.story-nodes-layer {
  position: absolute;
  left: 0;
  top: 0;
}

.story-node {
  position: absolute;
  width: 170px;
  min-height: 76px;
  border: 1px solid #b8aa89;
  border-radius: 10px;
  background: #fffdf6;
  box-shadow: 0 3px 9px rgba(35, 32, 24, 0.14);
  cursor: grab;
  padding: 0.45rem 0.5rem;
}

.story-node:active {
  cursor: grabbing;
}

.story-node.is-selected {
  border-color: var(--brand);
  box-shadow: 0 0 0 2px rgba(159, 61, 47, 0.2);
}

.story-node-id {
  font-family: "IBM Plex Mono", "Consolas", monospace;
  font-size: 0.75rem;
  color: #2c2a23;
  margin-bottom: 0.2rem;
}

.story-node-title {
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.2;
}

.card-soft {
  background: #f9f4e8;
  border: 1px solid #e4d7bb;
  border-radius: 12px;
  padding: 0.7rem;
}

button {
  border: 1px solid #8f3528;
  background: var(--brand);
  color: #fff8f4;
  border-radius: 10px;
  padding: 0.5rem 0.72rem;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease;
}

button:hover {
  transform: translateY(-1px);
  background: #8d2f22;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

button.ghost {
  color: var(--brand);
  background: var(--brand-soft);
  border-color: #d9a998;
}

.actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.final-actions {
  margin-top: 1rem;
}

.subheading {
  margin: 1rem 0 0.5rem 0;
  font-size: 0.92rem;
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  color: #49372a;
}

.import-stack {
  border-top: 1px solid #e7dfc8;
  margin-top: 0.35rem;
  padding-top: 0.7rem;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid #e7dfc8;
  text-align: left;
  padding: 0.45rem;
  vertical-align: top;
}

th {
  font-size: 0.76rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #5f594b;
}

.validation-list {
  margin: 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.3rem;
}

.validation-summary {
  margin: 0 0 0.85rem 0;
  font-weight: 600;
}

.validation-list li {
  font-size: 0.9rem;
}

.validation-empty-state {
  list-style: none;
  margin-left: -1rem;
  border: 1px solid #cfe6da;
  border-radius: 10px;
  background: #f3fbf7;
  padding: 0.6rem 0.75rem;
}

.validation-group {
  list-style: none;
  margin-left: -1rem;
  border: 1px solid #e4d7bb;
  border-radius: 10px;
  background: #fffaf0;
  padding: 0.45rem 0.6rem;
}

.validation-group-heading {
  margin: 0;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #5f594b;
}

.validation-group-list {
  margin: 0.35rem 0 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.25rem;
}

.validation-group-list .is-critical {
  font-weight: 700;
}

.validation-list .ok {
  color: var(--ok);
}

.validation-list .warn {
  color: var(--warn);
}

.validation-list .bad {
  color: var(--bad);
}

.export-guard-status {
  margin: 0.55rem 0 0.35rem 0;
  font-weight: 600;
}

.tutorial-overlay {
  position: fixed;
  inset: 0;
  background: rgba(18, 16, 12, 0.58);
  display: grid;
  place-items: center;
  z-index: 20;
  padding: 1rem;
}

.tutorial-overlay.hidden {
  display: none;
}

.tutorial-card {
  width: min(640px, 95vw);
  background: #fffdf6;
  border: 1px solid #dbcdb0;
  border-radius: 14px;
  box-shadow: 0 14px 40px rgba(23, 19, 13, 0.24);
  padding: 1rem;
}

.tutorial-card h2 {
  margin: 0 0 0.5rem 0;
}

.tutorial-checklist {
  margin: 0.7rem 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.3rem;
}

.tutorial-checklist li {
  font-size: 0.9rem;
}

.tutorial-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

@media (max-width: 900px) {
  .two-col,
  .field-row {
    grid-template-columns: 1fr;
  }

  .language-top-row,
  .language-add-wrap {
    grid-template-columns: 1fr;
  }

  .segment-toolbar {
    align-items: flex-start;
  }

  .story-layout {
    grid-template-columns: 1fr;
  }


  .shell {
    width: min(1220px, 96vw);
  }
}