:root {
  --red: #ff0000;
  --blue: #0044ff;
  --green: #008f2b;
  --cream: #fffdf6;
}

/* change colors if you want; just remember to change your variable names. */

a:link {
    color: var(--red);
}

a:visited {
  color: var(--red);
}

body {
  font-family: 'Georgia', serif;
  background: var(--cream);
  padding: 24px;
  color: #111
}

header {
  display: flex;
  align-items: center;
  gap: 16px
}

h1 {
  color: var(--red);
  font-size: 48px;
  margin: 0;
  letter-spacing: 2px;
}

h2 {
  color: #111;
  font-size: 28px;
  margin: 0;
  font-family: Cambria, 'Times New Roman', serif
}

.sub {
  color: var(--blue);
  font-size: 20px;
  margin-top: 6px;
  font-weight: bold
}

.card {
  border: 3px solid var(--blue);
  padding: 18px;
  margin-top: 18px;
  background: #fff;
}

.howto {
  color: var(--green);
  line-height: 1.5;
  padding: 12px
}

.controls {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px
}

.controls>* {
  flex: 0 0 auto
}

label {
  display: block;
  font-weight: bold;
  margin-bottom: 6px;
  color: var(--red)
}

.bigbtn {
  background: var(--red);
  color: white;
  border: 0;
  padding: 10px 14px;
  cursor: pointer;
  font-weight: bold;
}

.smallbtn {
  background: var(--blue);
  color: white;
  border: 0;
  padding: 8px 10px;
  cursor: pointer;
}

.pools {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px
}

.pool {
  border: 2px dashed #aaa;
  padding: 10px;
  min-height: 120px;
  background: linear-gradient(180deg, #fff, #f0f0ff)
}

.pool h3 {
  margin: 0 0 8px 0;
  font-size: 16px;
  color: var(--blue)
}

.letters {
  font-family: monospace;
  font-size: 20px;
  word-spacing: 8px;
  user-select: text
}

.letter {
  display: inline-block;
  padding: 4px 6px;
  margin-right: 4px;
  cursor: pointer;
}

.letter:hover {
  background: var(--green);
  color: white
}

.letter.selected {
  background: yellow;
  text-decoration: underline;
  font-weight: bold
}

.letter.selected:hover {
  background: yellow;
  color:black;
  text-decoration: underline;
  font-weight: bold
}

.foundlist {
  margin-top: 12px
}

.foundlist li {
  margin-bottom: 6px;
  color: var(--red);
  font-weight: bold
}

#foundInput {
  width: 100%;
  min-height: 60px;
  font-size: 16px;
  padding: 6px;
  resize: both;
  box-sizing: border-box;
  border: 3px solid var(--blue);
}

footer {
  margin-top: 18px;
  padding-top: 8px;
  font-size: 13px;
  color: #666
}

/* responsive */
@media (max-width:600px) {
  h1 {
    font-size: 32px
  }

  .pools {
    grid-template-columns: 1fr
  }
}