body {
  padding: 0;
  margin: 0;
  box-sizing: content-box;
  background: #000000;
}
#unity-container {
  position: absolute;
}
#unity-container.unity-desktop {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
#unity-container.unity-mobile {
  width: 100%;
  height: 100%;
}
#unity-canvas {
  background: #231f20;
}
.unity-mobile #unity-canvas {
  width: 100%;
  height: 100%;
}
#unity-loading-bar {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: none;
  z-index: 1000;
}

.game-side-container #unity-loading-bar {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
#unity-logo {
  width: 154px;
  height: 130px;
  background: url("unity-logo-dark.png") no-repeat center;
}
#unity-progress-bar-empty {
  width: 141px;
  height: 18px;
  margin-top: 10px;
  margin-left: 6.5px;
  background: url("progress-bar-empty-dark.png") no-repeat center;
}
#unity-progress-bar-full {
  width: 0%;
  height: 18px;
  margin-top: 10px;
  background: url("progress-bar-full-dark.png") no-repeat center;
}
#unity-footer {
  position: relative;
}
.unity-mobile #unity-footer {
  display: none;
}
#unity-webgl-logo {
  float: left;
  width: 204px;
  height: 38px;
  background: url("webgl-logo.png") no-repeat center;
}
#unity-build-title {
  float: right;
  margin-right: 10px;
  line-height: 38px;
  font-family: arial;
  font-size: 18px;
}
#unity-fullscreen-button {
  float: right;
  width: 38px;
  height: 38px;
  background: url("fullscreen-button.png") no-repeat center;
}
#unity-warning {
  position: absolute;
  left: 50%;
  top: 5%;
  transform: translate(-50%);
  background: white;
  padding: 10px;
  display: none;
}

.game-side-container {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  margin: 0 auto;
  gap: 0;
}

.unity-desktop .game-side-container #unity-canvas {
  flex-shrink: 0;
}

.side-vertical-banner {
  position: relative;
  text-align: center;
  width: 289px;
  height: 900px;
  transform: rotate(0deg);
  opacity: 1;
  flex-shrink: 0;
}

.banner-left {
  background: url('banner-left-new.jpg') no-repeat center/cover;
}

.banner-right {
  background: url('banner-right-new.jpg') no-repeat center/cover;
}

@media (max-width: 768px) {
  .side-vertical-banner {
    display: none;
  }
}

.banner-left-frame {
  position: absolute;
  bottom: 50px;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 156px;
  opacity: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 25px;
  z-index: 2;
}

.banner-left-title {
  width: 230px;
  height: 53px;
  transform: rotate(0deg);
  opacity: 1;
  margin-top: 10px;
}

.button-frame {
  width: 300px;
  height: 72px;
  max-width: 300px;
  transform: rotate(0deg);
  opacity: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  border-radius: 12px; /* in-radius → 내부 radius */
  padding: 16px; /* padding(inside-box) → 내부 패딩 */
}

.button-how-to-play {
  font-family: "Lexend", sans-serif;
  font-optical-sizing: auto;
  font-weight: 400;
  font-style: normal;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 106px;
  height: 35px;
  transform: rotate(0deg);
  opacity: 1;
  gap: 11px;
  border-radius: 999px;
  padding: 8px 16px; /* spacing(text&button): 8px vertical, padding(side): 16px horizontal */
  white-space: nowrap;
  outline: none;
  color: white;
  background: #FF5C00;
  border: none;
  text-decoration: none;
  transition: all 0.3s;
  cursor: pointer;
}

.button-how-to-play:hover {
  transform: translate(-4px, -4px);
  box-shadow: 4px 4px 0px 0px #cc4700;
}

.braah-one-regular-title {
  font-family: "Bitter", serif;
  font-weight: 400;
  font-style: normal;
  font-size: 20px;
  line-height: 100%;
  letter-spacing: 0%;
  text-align: center;
  color: white;
  margin: 0;
  width: 164px;
  height: 48px;
}

.braah-one-regular-desc {
  font-family: "Lexend", sans-serif;
  font-weight: 400;
  font-style: normal;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: 0%;
  color: white;
  white-space: nowrap;
  margin: 0;
  margin-top: 20px;
}

.braah-one-regular-desc a {
  font-family: "Lexend", sans-serif;
  font-weight: 400;
  font-style: normal;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: 0%;
  color: white;
  text-decoration: underline;
  text-decoration-style: solid;
  text-decoration-offset: 0%;
  text-decoration-thickness: 0%;
}

.powered-by-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  padding: 16px 0;
  position: absolute;
  bottom: 50px; /* 아래에서 얼마나 떨어뜨릴지 */
  left: 50%;
  transform: translateX(-50%);
}