:root {
  --ink: #1a1a1a;
  --muted: #5a5f6a;
  --accent: #0b6e4f;
  --accent-dark: #064a35;
  --sun: #f7b32b;
  --paper: #f8f5f0;
  --mist: #e4ebf0;
  --card: #ffffff;
  --shadow: 0 20px 40px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top, #fdf6e9 0%, #e7f1f4 45%, #f6efe6 100%);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 40px;
}

.hero-text h1 {
  font-family: "Playfair Display", serif;
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  margin: 8px 0 12px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  color: var(--muted);
}

.subhead {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 18px;
}

.btn {
  border: none;
  background: var(--accent);
  color: white;
  padding: 12px 18px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, background 0.2s ease;
}

.btn:hover { transform: translateY(-2px); background: var(--accent-dark); }

.btn.ghost {
  background: transparent;
  color: var(--accent-dark);
  border: 2px solid var(--accent-dark);
  box-shadow: none;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.hero-card {
  background: var(--card);
  border-radius: 20px;
  padding: 22px;
  box-shadow: var(--shadow);
  border: 1px solid #e8e2d8;
}

.hero-card h2 { margin-top: 0; }

.pill {
  display: inline-block;
  margin-top: 12px;
  background: var(--sun);
  color: #3b2c00;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
}

.section {
  background: rgba(255,255,255,0.75);
  border-radius: 24px;
  padding: 28px;
  margin: 28px 0;
  box-shadow: var(--shadow);
}

.section.alt {
  background: rgba(228, 235, 240, 0.95);
}

.section-head h2 {
  margin: 0 0 6px;
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.table-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 20px;
}

.list {
  display: grid;
  gap: 12px;
}

.card {
  background: var(--card);
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid #d9d9d9;
  cursor: grab;
}

.match-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #d9d9d9;
}

.match-table th,
.match-table td {
  border-bottom: 1px solid #e3e3e3;
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

.match-table th {
  background: #f5f5f5;
  font-weight: 700;
}

.match-table tr:last-child td {
  border-bottom: none;
}

.machine-cell {
  width: 220px;
}

.drop-slot {
  min-height: 48px;
  border: 2px dashed #c2c8d0;
  border-radius: 12px;
  background: #f2f4f7;
  padding: 6px;
  display: grid;
  place-items: center;
}

.sorter {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

.tray {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.buckets {
  display: grid;
  gap: 16px;
}

.bucket {
  background: var(--card);
  border-radius: 18px;
  padding: 16px;
  border: 1px solid #d9d9d9;
}

.bucket-drop {
  min-height: 100px;
  border: 2px dashed #c2c8d0;
  border-radius: 12px;
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
}

.droppable.over .drop-slot,
.bucket.over .bucket-drop {
  border-color: var(--accent);
  background: #e8f4ef;
}

.reflection {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 20px;
}

.quote {
  font-family: "Playfair Display", serif;
  font-size: 1.4rem;
}

.toggle-group {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}

.toggle {
  padding: 8px 14px;
  border-radius: 999px;
  border: 2px solid #c2c8d0;
  background: transparent;
  cursor: pointer;
}

.toggle.active {
  border-color: var(--accent);
  background: #e8f4ef;
  color: var(--accent-dark);
}

.diagram {
  display: grid;
  grid-template-columns: 1fr 1.4fr 1fr;
  gap: 20px;
  margin-top: 22px;
}

.panel {
  background: var(--card);
  border-radius: 18px;
  padding: 16px;
  border: 1px solid #e1e1e1;
  display: grid;
  gap: 10px;
}

.panel.detail {
  align-content: start;
}

.chip {
  background: #f3f7f5;
  border: 1px solid #cfe1d8;
  border-radius: 999px;
  padding: 10px 12px;
  cursor: pointer;
  font-weight: 600;
  transition: transform 0.2s ease, background 0.2s ease;
}

.chip:hover { transform: translateY(-1px); background: #e6f3ee; }

.diagram-core {
  display: grid;
  place-items: center;
}

.core {
  position: relative;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: linear-gradient(145deg, #f2f4f7, #ffffff);
  border: 2px dashed #c9d2da;
  display: grid;
  place-items: center;
}

.core-label {
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
}

.core-ring {
  position: absolute;
  inset: 24px;
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.node {
  position: absolute;
  border: 2px solid var(--accent);
  background: #ffffff;
  border-radius: 999px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 12px 25px rgba(0,0,0,0.08);
}

.node:nth-child(1) { top: -8px; left: 50%; transform: translateX(-50%); }
.node:nth-child(2) { right: -12px; top: 35%; }
.node:nth-child(3) { right: 6px; bottom: -4px; }
.node:nth-child(4) { left: 50%; bottom: -12px; transform: translateX(-50%); }
.node:nth-child(5) { left: -10px; bottom: 30%; }
.node:nth-child(6) { left: 8px; top: 8%; }

.fact-sheet {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.fact {
  background: var(--card);
  border-radius: 16px;
  padding: 14px;
  border: 1px solid #d9d9d9;
}

.fact h4 {
  margin: 0 0 8px;
}

.fact p {
  margin: 0;
  color: var(--muted);
}

.section-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 18px;
}

.feedback {
  font-weight: 600;
  color: var(--accent-dark);
}

.evidence-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-end;
  margin-top: 16px;
}

.evidence {
  font-family: "Space Grotesk", sans-serif;
  color: #1f1f1f;
  width: 800px;
  max-width: 100%;
  background: #ffffff;
  padding: 16px;
}

.evidence h1 {
  font-size: 20px;
  margin: 0 0 6px;
}

.evidence h2 {
  font-size: 16px;
  margin: 16px 0 8px;
}

.evidence .meta {
  color: #5f5f6a;
  font-size: 13px;
  margin-bottom: 12px;
}

.evidence .tag {
  display: inline-block;
  border: 1px solid #d9d9d9;
  border-radius: 999px;
  padding: 4px 10px;
  margin-right: 8px;
  margin-bottom: 6px;
}

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

.evidence th,
.evidence td {
  border: 1px solid #e1e1e1;
  padding: 8px;
  text-align: left;
  font-size: 13px;
}

.evidence th {
  background: #f5f5f5;
}

.evidenceHidden {
  display: none;
}

.exporting .evidenceHidden {
  display: block;
  position: fixed;
  left: 0;
  top: 0;
  z-index: 0;
  pointer-events: none;
}

.challenge {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 18px;
}

.prompt {
  background: var(--card);
  border-radius: 16px;
  border: 1px solid #d9d9d9;
  padding: 16px;
}

textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid #d9d9d9;
  padding: 10px 12px;
  font-family: inherit;
  resize: vertical;
}

.footer {
  text-align: center;
  color: var(--muted);
  margin-top: 32px;
}

@media (max-width: 980px) {
  .hero, .diagram, .challenge {
    grid-template-columns: 1fr;
  }
  .core { width: 280px; height: 280px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .section-actions { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 560px) {
  .node { font-size: 0.8rem; padding: 8px 10px; }
}