body {
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}

h1 {
  margin: 0;
}

.tutor .learner {
  cursor: pointer;
  user-select: none;
}

button {
  cursor: pointer;
  padding: 5px;
  font-size: large;
  white-space: nowrap;
  border: 2px solid black;
  background-color: white;
  border-radius: 15px;
  user-select: none;
  line-height: 1.75;
}

button.poker {
  border: 2px solid darkgray;
  border-radius: 999px; /* fully rounded pill shape */
  line-height: 1.5;
  /* subtle shadow */
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.2s ease;  
}

button.poker:hover {
  background-color: lightgreen;
}

button:focus, input:focus {
  outline: 0;
}

button.button1 {
  background-color: lightgreen;
}

button.button2 {
  background-color:lightpink;
}

button.button3 {
  background-color: lightblue;
}

.invisible {
  visibility: hidden;
}

.panel {
  padding: 20px;
  border: 2px solid black;
  background-color: #e8e8e8;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  min-height: 15em;
  min-width: 450px;
}

.panel.poker {
  min-height: 8em;
}

.tutor .panel, .settings .panel {
  background-color: white;  
  min-width: 100px;
}

.section {
  display: flex;
  flex-direction: column;
}

.section.stat-box {
  border: 1px solid #bbb;
  border-radius: 8px;
  padding: 1em;
  background: white;
  min-width: 100px;
}

.full-agreement {
  background-color: #28a745 !important; /* solid green */
  color: white !important;              /* white text */
  border-radius: 0.5em;
  padding: 1em;
  transition: background-color 0.3s ease;
}

.main {
  display: flex;
  justify-content: center;
}

.left {
  justify-content: flex-start;
}

.col-gap {
  width: 10px;
  display: inline-block;
  flex: none;
}

.col-gap-small {
  width: 5px;
  display: inline-block;
  flex: none;
}

.section-gap {
  height: 25px;
  display: block;
  flex: none;
}

.row-gap {
  height: 10px;
  display: block;
  flex: none;
}

.row {
  display: flex;
  justify-content: center;
  align-items: stretch;
}

.row1 {
  display: flex;
  justify-content: left;
  align-items: center;
  text-align: left;
}

.row2 {
  display: flex;
  justify-content: center;
  align-items: center;
}

.row3 {
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
}

div.status {
  font-size: 6rem;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 6rem;
}

.status.poker {
  font-size: 4rem;
}

td.status {
  text-align: right;
}

.row button {
  -ms-flex: 1 1 0%1;
  flex: 1 1 0%;
}

input[type=text] {
  width: 100%;
  padding: 5px;
  font-size: large;
  text-align: center;
  border: 2px solid black;
  border-radius: 15px;
  /* line-height: 1.75; */
}

.intro input[type=text] {
  font-size: x-large;
}

i {
  text-shadow: 2px 2px 3px lightgrey;
}

.hand-up { color: black; }
.not-sure { color: blue; }
.break { color: brown; }

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

thead, tfoot {
  font-style: italic;
  font-weight: bold;
}

td {
  padding-left: 10px;
  padding-right: 10px;
  padding-top: 5px;
  padding-bottom: 5px;
  border-top: 1px solid lightslategray;
  border-bottom: 1px solid lightslategray;
}

.inactive {
  opacity: 50%;
}

/* cards for planning poker */
.card {
  border: 2px solid #444;
  border-radius: 12px;
  background: white;
  box-shadow: 3px 3px 8px rgba(0, 0, 0, 0.5);
  max-width: 120px;      /* optional: avoid super wide cards */
  flex: 1 1 100px;       /* allow cards to shrink/grow, base width 100px */
  min-width: 100px;
  text-align: center;
  padding: 1em;
  transition: transform 0.2s ease;
}

.card:hover {
  transform: scale(1.05);
  box-shadow: 3px 3px 8px rgba(0, 0, 0, 0.2);
  background-color: lightgreen !important;
  cursor: pointer;
}

.card .row2 {
  font-size: 3rem;
  font-weight: bold;
  color: #222;
}

.card.has-estimate {
  background-color: #e0f7fa;  /* light blue, or any color you want */
  border-color: #00796b;      /* a matching darker border */
  box-shadow: 3px 3px 8px rgba(0, 121, 107, 0.4);
}

.card.no-estimate {
  background-color: #f0f0f0;  /* light grey for no estimate */
  border-color: #aaa;
  box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.15);
}

.card-back {
  background: linear-gradient(45deg, #004080 25%, #003060 25%, #003060 50%, #004080 50%, #004080 75%, #003060 75%, #003060 100%);
  background-size: 40px 40px;
  border-radius: 12px;
  color: white;
  font-size: 4rem;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 6rem;
  width: 6rem;
  user-select: none;
  box-shadow: inset 0 0 8px #001a33;
  border: 2px solid #001a33;
}

/* Card backgrounds */
/* No Estimate ~ Grey */
.card-back.no-estimate {
  background: linear-gradient(45deg,
    #bbbbbb 25%, #999999 25%,
    #999999 50%, #bbbbbb 50%,
    #bbbbbb 75%, #999999 75%,
    #999999 100%);
  background-size: 40px 40px;
  box-shadow: inset 0 0 8px #333;
  border: 2px solid #444;
}

.card-back.card-break {
  background: linear-gradient(45deg,
    #888888 25%, #666666 25%,
    #666666 50%, #888888 50%,
    #888888 75%, #666666 75%,
    #666666 100%);
  background-size: 40px 40px;
  box-shadow: inset 0 0 8px #444;
  border: 2px solid #555;
}

.card-back.card-unknown {
  background: linear-gradient(45deg,
    #996600 25%, #664400 25%,
    #664400 50%, #996600 50%,
    #996600 75%, #664400 75%,
    #664400 100%);
  background-size: 40px 40px;
  box-shadow: inset 0 0 8px #331a00;
  border: 2px solid #442200;
}

.cards-container {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: 100%;  /* or remove max-width */
  margin: 0 auto;
  padding: 10px;  /* optional for breathing room */
}

/* Mobile devices */
@media only screen and (max-width: 420px) {
  .main {
    width: 100%;
  }

  .panel {
    min-width: 100px;
    width: 100%;
  }
}