* { box-sizing: border-box; }

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  margin: 0;
  background: #f7f7f7;
  color: #1a1a1b;
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

h1 { text-align: center; margin-bottom: 4px; }
.tagline { text-align: center; margin: 0 0 24px; color: #555; font-size: 0.95rem; }

.grid { display: flex; flex-direction: column; gap: 16px; }

.row { padding: 12px; border-radius: 8px; }
.row-label { display: block; font-size: 0.85rem; margin-bottom: 8px; font-weight: 600; }
.row-green  { background: #d7ecd9; }
.row-yellow { background: #f6e7b8; }
.row-red   { background: #f5c6c0; }

.boxes { display: flex; gap: 8px; }
.red-rows { display: flex; flex-direction: column; gap: 8px; }
.yellow-rows { display: flex; flex-direction: column; gap: 8px; }
.row-help { font-size: 0.8rem; color: #555; margin: 0 0 8px; }
.add-row {
  margin-top: 8px;
  padding: 6px 14px;
  font-size: 0.9rem;
  background: #787c7e;
  color: #fff;
}

.box {
  width: 48px;
  height: 48px;
  font-size: 1.5rem;
  text-align: center;
  text-transform: uppercase;
  border: 2px solid #b9b9bd;
  border-radius: 6px;
  background: #fff;
}
.row-red .box { border-color: #d98880; }
.box.conflict { border-color: #c0392b; background: #fdecea; }

.error {
  min-height: 1.2em;
  color: #c0392b;
  font-weight: 600;
  text-align: center;
}

.buttons { display: flex; justify-content: center; gap: 16px; margin: 8px 0 24px; }

button {
  padding: 10px 20px;
  font-size: 1rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
#find  { background: #6aaa64; color: #fff; }
#reset { background: #787c7e; color: #fff; }

.results-list {
  max-height: 360px;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 8px;
  padding: 12px;
  border: 1px solid #d3d6da;
  border-radius: 8px;
  background: #fff;
}

.word-chip {
  text-align: center;
  padding: 6px 4px;
  background: #f0f0f0;
  border-radius: 4px;
  letter-spacing: 1px;
  font-variant: small-caps;
}