:root {
  --bg: #eadfce;
  --bg-deep: #d7c0a5;
  --panel: rgba(255, 250, 244, 0.82);
  --panel-strong: rgba(255, 248, 238, 0.94);
  --ink: #281d17;
  --muted: #6f5b4d;
  --accent: #8b4d1e;
  --accent-deep: #5c2f12;
  --line: rgba(84, 49, 26, 0.18);
  --shadow: 0 18px 45px rgba(59, 33, 15, 0.16);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--ink);
  font-family: "Trebuchet MS", "Gill Sans", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(255, 243, 226, 0.9), transparent 32%),
    radial-gradient(circle at bottom right, rgba(195, 139, 77, 0.18), transparent 28%),
    linear-gradient(135deg, var(--bg), var(--bg-deep));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    linear-gradient(0deg, transparent 24%, rgba(84, 49, 26, 0.06) 25%, transparent 26%),
    linear-gradient(90deg, transparent 24%, rgba(84, 49, 26, 0.05) 25%, transparent 26%);
  background-size: 48px 48px;
}

.app-shell {
  width: min(1400px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 2.5rem;
}

.hero {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: 1.6fr 1fr;
  align-items: end;
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  color: var(--accent-deep);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3,
legend {
  font-family: "Palatino Linotype", "Book Antiqua", serif;
}

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 4vw, 4.4rem);
  line-height: 0.96;
}

h2 {
  margin: 0;
  font-size: 1.7rem;
}

h3 {
  margin: 0 0 0.8rem;
  font-size: 1.1rem;
}

.intro,
.hero-note p,
.panel-header p {
  margin: 0.5rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.hero-note {
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 246, 236, 0.85), rgba(246, 230, 213, 0.9));
  box-shadow: var(--shadow);
}

.hero-note strong {
  display: block;
  font-size: 0.92rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.workspace {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(320px, 420px) minmax(0, 1fr);
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.controls-panel,
.preview-panel {
  padding: 1.4rem;
}

.controls-panel {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow: auto;
}

.panel-header {
  margin-bottom: 1.1rem;
}

.control-section {
  margin: 0 0 1rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--panel-strong);
  overflow: clip;
}

.control-section summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.95rem 1rem;
  cursor: pointer;
  color: var(--accent-deep);
  font-family: "Palatino Linotype", "Book Antiqua", serif;
  font-size: 1.02rem;
  font-weight: 700;
  list-style: none;
}

.control-section summary::-webkit-details-marker {
  display: none;
}

.control-section summary::after {
  content: "+";
  color: var(--muted);
  font-family: "Trebuchet MS", "Gill Sans", sans-serif;
  font-size: 1rem;
  font-weight: 800;
}

.control-section[open] summary::after {
  content: "-";
}

.section-body {
  padding: 0 1rem 1rem;
}

.section-note {
  margin: 0 0 0.9rem;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

.source-groups {
  display: grid;
  gap: 0.9rem;
}

.type-board {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}

.type-card {
  padding: 0.9rem;
  border: 1px solid rgba(71, 44, 26, 0.12);
  border-radius: 16px;
  background: rgba(255, 250, 243, 0.96);
}

.type-card[data-state="active"] {
  border-color: rgba(92, 47, 18, 0.28);
  background: linear-gradient(180deg, rgba(255, 247, 238, 0.98), rgba(246, 231, 214, 0.95));
}

.type-card[data-state="planned"] {
  opacity: 0.84;
}

.type-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.type-card-title {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 800;
}

.type-chip {
  padding: 0.22rem 0.48rem;
  border-radius: 999px;
  color: var(--accent-deep);
  background: rgba(139, 77, 30, 0.12);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.type-card p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.45;
}

.source-group {
  border: 1px solid rgba(71, 44, 26, 0.12);
  border-radius: 16px;
  background: rgba(255, 252, 248, 0.82);
  overflow: clip;
}

.source-group summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
  padding: 0.85rem 0.95rem;
  cursor: pointer;
  list-style: none;
}

.source-group summary::-webkit-details-marker {
  display: none;
}

.source-group summary::after {
  content: "+";
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

.source-group[open] summary::after {
  content: "-";
}

.source-group-title {
  margin: 0;
  color: var(--accent-deep);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.source-group-description {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.source-group-body {
  padding: 0 0.95rem 0.75rem;
}

.source-group-meta {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.source-group-count {
  padding: 0.18rem 0.46rem;
  border-radius: 999px;
  color: var(--accent-deep);
  background: rgba(139, 77, 30, 0.12);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.toggle-card {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0.55rem 0 0;
  padding: 0.8rem 0.9rem;
  border-radius: 14px;
  background: rgba(133, 90, 53, 0.08);
  cursor: pointer;
}

.toggle-card input {
  accent-color: var(--accent);
}

.toggle-text {
  display: flex;
  flex-direction: column;
  gap: 0.16rem;
}

.toggle-text strong {
  font-size: 0.95rem;
}

.toggle-text small {
  color: var(--muted);
  line-height: 1.35;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.38rem;
  font-size: 0.94rem;
}

label > span {
  color: var(--muted);
  font-weight: 700;
}

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

input,
select,
textarea {
  width: 100%;
  padding: 0.78rem 0.9rem;
  color: var(--ink);
  border: 1px solid rgba(71, 44, 26, 0.2);
  border-radius: 14px;
  background: rgba(255, 252, 248, 0.96);
}

textarea {
  resize: vertical;
}

.stacked {
  margin-top: 1rem;
}

.section-input {
  margin: 0;
}

.seed-row {
  display: grid;
  gap: 0.55rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

button {
  appearance: none;
  padding: 0.82rem 1rem;
  border: 1px solid rgba(71, 44, 26, 0.25);
  border-radius: 999px;
  color: var(--ink);
  background: rgba(255, 248, 238, 0.95);
  cursor: pointer;
  transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

button:hover {
  transform: translateY(-1px);
  border-color: rgba(71, 44, 26, 0.5);
  background: rgba(255, 244, 230, 0.98);
}

.primary-button {
  color: #fff8f1;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
}

.primary-button:hover {
  background: linear-gradient(135deg, #9b5620, #6a3614);
}

.ghost-button {
  white-space: nowrap;
}

.actions {
  display: flex;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.preview-frame {
  display: grid;
  place-items: center;
  min-height: 320px;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(255, 250, 245, 0.94), rgba(246, 235, 222, 0.92));
  overflow: auto;
}

.preview-frame svg {
  width: 100%;
  height: auto;
  max-width: 100%;
}

.meta-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.8rem;
  margin: 1rem 0 1.2rem;
}

.meta-card {
  padding: 0.95rem 1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 251, 246, 0.92);
}

.meta-card span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.meta-card strong {
  display: block;
  margin-top: 0.35rem;
  font-size: 1rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  min-height: 52px;
  margin-bottom: 1.2rem;
}

.legend-chip {
  padding: 0.48rem 0.7rem;
  border: 1px solid rgba(71, 44, 26, 0.14);
  border-radius: 999px;
  background: rgba(255, 249, 242, 0.96);
  font-size: 0.84rem;
}

.legend-chip small {
  color: var(--muted);
}

.code-block textarea {
  min-height: 240px;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.88rem;
  line-height: 1.45;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
  padding: 1rem 1.2rem 0;
  border-top: 1px solid rgba(84, 49, 26, 0.18);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
  line-height: 1.5;
}

.support-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.1rem;
  border: 1px solid transparent;
  border-radius: 999px;
  color: #fff8f1;
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  font-weight: 700;
  text-decoration: none;
  transition: transform 160ms ease, filter 160ms ease;
}

.support-link:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.support-link:focus-visible {
  outline: 3px solid rgba(139, 77, 30, 0.28);
  outline-offset: 3px;
}

.hidden {
  display: none;
}

@media (max-width: 1040px) {
  .hero,
  .workspace {
    grid-template-columns: 1fr;
  }

  .hero {
    align-items: start;
  }

  .controls-panel {
    position: static;
    max-height: none;
    overflow: visible;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 1rem, 100%);
    padding-top: 1rem;
  }

  .form-grid,
  .meta-strip {
    grid-template-columns: 1fr;
  }

  .seed-row {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
    align-items: stretch;
    padding-left: 0;
    padding-right: 0;
  }
}