.fl {
  float: left;
}

.fr {
  float: right;
}

.pointer {
  cursor: pointer;
}

.textac {
  text-align: center;
}

.bt {
  width: 120px;
  height: 50px;
  background-color: lightsalmon;
  line-height: 50px;
  text-align: center;
  box-shadow:
    inset 0px 1px 0px 0px rgba(255, 255, 255, 0.1),
    0px 1px 2px rgba(0, 0, 0, 0.3),
    inset -1px 0px 0px rgba(255, 255, 255, 0.1),
    inset 1px 0px 0px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.sbt {
  width: 80px;
  height: 50px;
  background-color: lightsalmon;
  line-height: 50px;
  text-align: center;
  box-shadow:
    inset 0px 1px 0px 0px rgba(255, 255, 255, 0.1),
    0px 1px 2px rgba(0, 0, 0, 0.3),
    inset -1px 0px 0px rgba(255, 255, 255, 0.1),
    inset 1px 0px 0px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  margin-right: 40px;
  border-radius: 25px;
}

li:hover {
  background-color: aquamarine;
}

.mb {
  margin-bottom: 20px;
}

.mt {
  margin-top: 10px;
}

body,
div,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
pre,
code,
form,
fieldset,
legend,
input,
button,
textarea,
p,
blockquote,
th,
td {
  margin: 0;
  padding: 0;
}

body {
  background: #fff;
  color: #555;
  font-size: 14px;
  font-family: Verdana, Arial, Helvetica, sans-serif;
}

td,
th,
caption {
  font-size: 14px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: normal;
  font-size: 100%;
}

address,
caption,
cite,
code,
dfn,
em,
strong,
th {
  font-style: normal;
  font-weight: normal;
}

a {
  color: #555;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  border: none;
}

ol,
ul,
li {
  list-style: none;
}

input,
textarea,
select,
button {
  font:
    14px Verdana,
    Helvetica,
    Arial,
    sans-serif;
}

table {
  border-collapse: collapse;
}

html {
  overflow-y: scroll;
}

body {
  background: #f5f0e1;
}

/* ---- Settings ---- */
.option-panel {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
}

.option-panel.hidden {
  display: none;
}

.option-content {
  background: #fff;
  border-radius: 16px;
  padding: 40px 48px;
  text-align: center;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.option-title {
  font-size: 42px;
  margin-bottom: 4px;
  color: #333;
}

.option-subtitle {
  font-size: 16px;
  color: #888;
  margin-bottom: 32px;
}

.option-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-grid-options {
  gap: 16px;
}

.form-group {
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
}

.color-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  flex-shrink: 0;
}

.form-group label {
  font-size: 14px;
  color: #555;
  flex-shrink: 0;
  min-width: 48px;
}

.form-group select {
  flex: 1;
  padding: 8px 10px;
  border: 2px solid #ddd;
  border-radius: 8px;
  font-size: 14px;
  background: #fff;
  color: #333;
  cursor: pointer;
  transition: border-color 0.2s;
}

.form-group select:focus {
  outline: none;
  border-color: #667eea;
}

.btn-begin {
  padding: 14px 32px;
  font-size: 18px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition:
    transform 0.15s,
    box-shadow 0.15s;
  font-family: inherit;
  background: #333;
  color: #fff;
  width: 100%;
}

.btn-begin:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-begin:active {
  transform: translateY(0);
}

.btn-online {
  background: #1565c0;
  color: #fff;
}

/* ---- Main Game Area ---- */
#game-main {
  display: none;
  gap: 20px;
  align-items: flex-start;
  justify-content: center;
  margin: 0 auto;
}

/* ---- Status Bar ---- */
#status-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: center;
  margin: 0 auto 16px;
  padding: 12px 20px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  max-width: 1205px;
}

.status-item {
  font-size: 15px;
}

.label {
  color: #777;
}

.team-indicator {
  font-weight: bold;
}

.status-color {
  font-weight: bold;
  margin-right: 2px;
}

.status-type {
  font-size: 12px;
  color: #999;
  margin-right: 6px;
  padding: 1px 6px;
  background: #f0f0f0;
  border-radius: 4px;
}

.main {
  width: 985px;
  height: 985px;
  position: relative;
  flex-shrink: 0;
  overflow: hidden;
  box-sizing: content-box;
  background: #fffccb;
  border: 1px solid #8a8a72;
}

.flying-board {
  position: absolute;
  inset: 0;
  display: block;
  width: 985px;
  height: 985px;
  z-index: 0;
  pointer-events: none;
}

.dice {
  width: 110px;
  height: 110px;
  position: absolute;
  top: 438px;
  left: 438px;
  z-index: 999;
}

.plane {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  position: absolute;
  z-index: 99;
  display: grid;
  place-items: center;
  box-sizing: border-box;
  color: var(--plane-color);
  background: radial-gradient(
    circle at 36% 30%,
    #fff 0%,
    var(--plane-light) 50%,
    var(--plane-color) 78%,
    var(--plane-dark) 100%
  );
  border: 1px solid var(--plane-dark);
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.35),
    inset 0 1px 2px rgba(255, 255, 255, 0.8);
  transition:
    filter 0.16s ease,
    transform 0.16s ease,
    box-shadow 0.16s ease;
}

.plane[type="red"] {
  --plane-color: #dc2108;
  --plane-light: #ef9b87;
  --plane-dark: #ad1600;
}

.plane[type="blue"] {
  --plane-color: #0873c5;
  --plane-light: #8fc7e6;
  --plane-dark: #00538f;
}

.plane[type="yellow"] {
  --plane-color: #ffc400;
  --plane-light: #f9e889;
  --plane-dark: #d09c00;
}

.plane[type="green"] {
  --plane-color: #0aa21c;
  --plane-light: #94d79a;
  --plane-dark: #087817;
}

.plane::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: #f4ffed;
  border: 2px solid var(--plane-color);
  box-sizing: border-box;
}

.plane svg {
  width: 35px;
  height: 35px;
  fill: currentColor;
  z-index: 1;
  pointer-events: none;
}

.plane.pointer:hover {
  filter: brightness(1.12);
  transform: translateY(-3px) scale(1.06);
  box-shadow:
    0 4px 7px rgba(0, 0, 0, 0.4),
    0 0 0 3px rgba(255, 255, 255, 0.75);
}

.plane.plane-finished {
  opacity: 0.78;
  transform: scale(0.86);
}

.slot {
  width: 110px;
  height: 110px;
}

.slot1 {
  background-image: url("../../common/images/1.png");
}

.slot2 {
  background-image: url("../../common/images/2.png");
}

.slot3 {
  background-image: url("../../common/images/3.png");
}

.slot4 {
  background-image: url("../../common/images/4.png");
}

.slot5 {
  background-image: url("../../common/images/5.png");
}

.slot6 {
  background-image: url("../../common/images/6.png");
}

.showdicenum {
  width: 209px;
  height: 50px;
  text-align: center;
  line-height: 50px;
  font-size: 36px;
  position: absolute;
  z-index: 9;
  font-weight: bold;
}

.sdnred {
  color: red;
  left: 738px;
  top: 120px;
}

.sdnblue {
  color: blue;
  left: 738px;
  top: 820px;
}

.sdnyellow {
  color: yellow;
  left: 39px;
  top: 820px;
}

.sdngreen {
  color: green;
  left: 39px;
  top: 120px;
}

.shade {
  width: 100%;
  height: 100%;
  z-index: 999;
  display: none;
  position: absolute;
  top: 0;
  min-height: 900px;
}

/* ---- Game Rules Panel ---- */
#rules-panel {
  background: #fff;
  border-radius: 10px;
  padding: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  width: 220px;
  font-size: 13px;
  line-height: 1.6;
  display: none;
}

#rules-panel h3 {
  font-size: 16px;
  margin-bottom: 12px;
  color: #333;
  border-bottom: 2px solid #8b5a2b;
  padding-bottom: 8px;
}

.rule-section {
  margin-bottom: 12px;
}

.rule-section h4 {
  font-size: 13px;
  color: #555;
  margin-bottom: 4px;
}

.rule-section ul {
  list-style: none;
  padding-left: 4px;
}

.rule-section li {
  color: #666;
  padding: 1px 0;
}

#rules-panel li:hover {
  background: none;
}

/* ---- Responsive ---- */
@media (max-width: 1300px) {
  #game-main {
    flex-direction: column;
    align-items: center;
  }
  #rules-panel {
    width: 100%;
    max-width: 985px;
  }
}

@media (max-width: 700px) {
  .option-content {
    padding: 28px 20px;
  }
  .option-title {
    font-size: 32px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-grid-options {
    grid-template-columns: 1fr;
  }
}