:root {
  color-scheme: only light;
  --ink: #1e1f24;
  --muted: #5a6173;
  --paper: #f7f5f2;
  --accent: #6a5cff;
  --accent-dark: #5448e7;
  --panel: #ffffff;
  --outline: #d7d7e0;
  --correct: #2f8f66;
  --incorrect: #c14444;
  --shadow: 0 16px 45px rgba(19, 25, 48, 0.12);
  font-family: "Source Sans 3", "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #f9f6ff 0%, #eef1fb 40%, #f7f5f2 100%);
  color: var(--ink);
}

.hero {
  padding: 32px 24px 12px;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--muted);
  margin: 0 0 8px;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 700;
}

.subhead {
  margin: 0;
  color: var(--muted);
  max-width: 680px;
  font-size: 16px;
}

.layout {
  display: grid;
  gap: 24px;
  padding: 24px;
  max-width: 1200px;
  margin: 0 auto 48px;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
}

.panel {
  background: var(--panel);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 20px;
}

.panel-header {
  margin-bottom: 16px;
}

.panel-header h2 {
  margin: 0;
  font-size: 20px;
}

.panel-header p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.bank-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
}

.label {
  border: 2px solid var(--outline);
  border-radius: 12px;
  padding: 10px 12px;
  background: #fdfdff;
  text-align: center;
  font-weight: 600;
  cursor: grab;
  transition: transform 0.2s ease, border-color 0.2s ease;
  user-select: none;
}

.label.dragging {
  opacity: 0.5;
  cursor: grabbing;
}

.label.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(106, 92, 255, 0.2);
}

.selection {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 16px;
  font-size: 14px;
  color: var(--muted);
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

button {
  border: none;
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  background: #ececf7;
  color: var(--ink);
}

button.primary {
  background: var(--accent);
  color: white;
}

button:hover {
  filter: brightness(0.98);
}

.score {
  margin-top: 12px;
  font-weight: 600;
}


.activity {
  padding: 12px;
}

.image-wrap {
  position: relative;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
}

.image-wrap img {
  width: 100%;
  display: block;
}

.overlay {
  position: absolute;
  inset: 0;
}

.dropzone {
  position: absolute;
  border: 2px dashed rgba(99, 99, 145, 0.5);
  border-radius: 10px;
  min-height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.75);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.dropzone.over {
  border-color: var(--accent);
  background: rgba(235, 233, 255, 0.8);
}

.dropzone.correct {
  border-color: var(--correct);
  background: rgba(47, 143, 102, 0.15);
}

.dropzone.incorrect {
  border-color: var(--incorrect);
  background: rgba(193, 68, 68, 0.12);
}

.dropzone .label {
  border: none;
  padding: 0;
  background: transparent;
  cursor: grab;
}


@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .activity {
    order: -1;
  }
}