* {
  box-sizing: border-box;
}

:root {
  --game-viewport-width: 100vw;
  --game-viewport-height: 100dvh;
}

html,
body {
  margin: 0;
  width: var(--game-viewport-width);
  min-height: 100%;
  background: #0b0d10;
  color: #f6f7fb;
  font-family: "Pretendard Variable", Pretendard, "Segoe UI", Arial, sans-serif;
  overflow: hidden;
  touch-action: none;
}

body {
  height: var(--game-viewport-height);
  display: grid;
  place-items: center;
}

#game-shell {
  position: relative;
  width: min(var(--game-viewport-width), calc(var(--game-viewport-height) * 0.5625));
  height: min(var(--game-viewport-height), calc(var(--game-viewport-width) * 1.7777778));
  max-width: 540px;
  max-height: 960px;
  background: #101418;
  overflow: hidden;
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.7);
}

#game-root,
#game-root canvas {
  width: 100%;
  height: 100%;
}

#game-root {
  position: relative;
}

#game-root canvas {
  display: block;
}

.loading {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0 24px 72px;
  overflow: hidden;
  color: #f7fbff;
  background-color: #070b0e;
  background-image: image-set(
    url("../assets/images/corridor-battlefield.webp") type("image/webp"),
    url("../assets/images/corridor-battlefield.png") type("image/png")
  );
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  isolation: isolate;
}

.loading::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(180deg, rgba(3, 5, 7, 0.28) 0%, rgba(3, 5, 7, 0.58) 52%, rgba(3, 5, 7, 0.92) 100%),
    radial-gradient(circle at 50% 34%, rgba(141, 238, 255, 0.22), rgba(4, 8, 11, 0) 46%),
    linear-gradient(90deg, rgba(255, 64, 58, 0.2), rgba(4, 8, 11, 0) 34%, rgba(69, 215, 255, 0.18));
  animation: loading-alert 2.4s ease-in-out infinite;
}

.loading::after {
  content: "";
  position: absolute;
  inset: -40% 0;
  z-index: -1;
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.07) 0 1px, transparent 1px 7px),
    linear-gradient(180deg, transparent 0%, rgba(141, 238, 255, 0.2) 48%, transparent 54%);
  opacity: 0.52;
  transform: translateY(-28%);
  animation: loading-scan 3.1s linear infinite;
}

.loading__content {
  width: min(100%, 408px);
  padding: 20px 18px 18px;
  border: 1px solid rgba(141, 238, 255, 0.34);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(7, 14, 19, 0.58), rgba(2, 5, 8, 0.88));
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.48), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  text-align: center;
  backdrop-filter: blur(3px);
}

.loading__signal {
  display: flex;
  justify-content: center;
  gap: 8px;
  height: 12px;
  margin-bottom: 12px;
}

.loading__signal span {
  width: 34px;
  height: 5px;
  border-radius: 999px;
  background: #ff5b55;
  box-shadow: 0 0 18px rgba(255, 91, 85, 0.72);
  animation: loading-beacon 1.05s ease-in-out infinite;
}

.loading__signal span:nth-child(2) {
  background: #ffd86b;
  box-shadow: 0 0 16px rgba(255, 216, 107, 0.68);
  animation-delay: 0.16s;
}

.loading__signal span:nth-child(3) {
  background: #8deeff;
  box-shadow: 0 0 16px rgba(141, 238, 255, 0.62);
  animation-delay: 0.32s;
}

.loading__kicker {
  color: #8deeff;
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0;
}

.loading__title {
  margin-top: 8px;
  color: #ffffff;
  font-size: 34px;
  font-weight: 900;
  line-height: 1.08;
  text-shadow: 0 4px 0 #050607, 0 0 18px rgba(255, 91, 85, 0.2);
}

.loading__text {
  margin-top: 10px;
  color: #d7e7ec;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.35;
}

.loading__bar {
  position: relative;
  height: 10px;
  margin-top: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 216, 107, 0.34);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
}

.loading__bar span {
  position: absolute;
  inset: 1px auto 1px 1px;
  width: 45%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ff5b55, #ffd86b 46%, #8deeff);
  box-shadow: 0 0 18px rgba(255, 216, 107, 0.42);
  animation: loading-bar 1.6s ease-in-out infinite;
}

@keyframes loading-alert {
  0%, 100% {
    opacity: 0.82;
  }

  50% {
    opacity: 1;
  }
}

@keyframes loading-scan {
  0% {
    transform: translateY(-28%);
  }

  100% {
    transform: translateY(28%);
  }
}

@keyframes loading-beacon {
  0%, 100% {
    opacity: 0.42;
    transform: scaleX(0.78);
  }

  45% {
    opacity: 1;
    transform: scaleX(1);
  }
}

@keyframes loading-bar {
  0% {
    transform: translateX(-105%);
  }

  55% {
    transform: translateX(65%);
  }

  100% {
    transform: translateX(132%);
  }
}

.run-loading {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  padding: 40px 22px 58px;
  overflow: hidden;
  color: #f7fbff;
  background: #04070a;
  opacity: 1;
  pointer-events: all;
  isolation: isolate;
  transition: opacity 180ms ease;
}

.run-loading--hide {
  opacity: 0;
  pointer-events: none;
}

.run-loading::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -3;
  background:
    linear-gradient(180deg, rgba(2, 4, 6, 0.2), rgba(2, 4, 6, 0.74) 58%, rgba(2, 4, 6, 0.96)),
    linear-gradient(90deg, rgba(255, 69, 63, 0.24), rgba(2, 4, 6, 0.1) 44%, rgba(69, 215, 255, 0.2)),
    image-set(url("../assets/images/run-loading-backdrop.webp") type("image/webp"), url("../assets/images/run-loading-backdrop.png") type("image/png"));
  background-position: center;
  background-size: cover;
  filter: saturate(1.08) contrast(1.02);
  transform: scale(1.02);
  animation: run-loading-drift 4.6s ease-in-out infinite;
}

.run-loading::after {
  content: "";
  position: absolute;
  inset: -36% 0;
  z-index: -2;
  background:
    repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.055) 0 1px, transparent 1px 8px),
    linear-gradient(180deg, transparent 0%, rgba(255, 216, 107, 0.16) 46%, rgba(141, 238, 255, 0.16) 52%, transparent 58%);
  opacity: 0.54;
  transform: translateY(-32%);
  animation: run-loading-scan 2.7s linear infinite;
}

.run-loading__art {
  position: relative;
  width: 104px;
  aspect-ratio: 9 / 16;
  border: 1px solid rgba(255, 216, 107, 0.46);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(0, 0, 0, 0.08)),
    image-set(url("../assets/images/run-loading-backdrop.webp") type("image/webp"), url("../assets/images/run-loading-backdrop.png") type("image/png"));
  background-position: center;
  background-size: cover;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.52), 0 0 30px rgba(255, 74, 65, 0.28);
  animation: run-loading-pulse 1.35s ease-in-out infinite;
}

.run-loading__art::before {
  content: "";
  position: absolute;
  inset: 10px;
  border: 1px solid rgba(141, 238, 255, 0.52);
  border-radius: 6px;
  box-shadow: inset 0 0 24px rgba(141, 238, 255, 0.18);
}

.run-loading__panel {
  width: min(100%, 408px);
  padding: 18px 18px 17px;
  border: 1px solid rgba(141, 238, 255, 0.36);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(8, 15, 18, 0.74), rgba(2, 5, 8, 0.92));
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  text-align: center;
  backdrop-filter: blur(3px);
}

.run-loading__signal {
  display: flex;
  justify-content: center;
  gap: 8px;
  height: 12px;
  margin-bottom: 12px;
}

.run-loading__signal span {
  width: 34px;
  height: 5px;
  border-radius: 999px;
  background: #ff5b55;
  box-shadow: 0 0 18px rgba(255, 91, 85, 0.72);
  animation: run-loading-beacon 0.96s ease-in-out infinite;
}

.run-loading__signal span:nth-child(2) {
  background: #ffd86b;
  box-shadow: 0 0 16px rgba(255, 216, 107, 0.68);
  animation-delay: 0.14s;
}

.run-loading__signal span:nth-child(3) {
  background: #8deeff;
  box-shadow: 0 0 16px rgba(141, 238, 255, 0.62);
  animation-delay: 0.28s;
}

.run-loading__kicker {
  color: #8deeff;
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0;
}

.run-loading__title {
  margin-top: 8px;
  color: #ffffff;
  font-size: 30px;
  font-weight: 900;
  line-height: 1.08;
  text-shadow: 0 4px 0 #050607, 0 0 18px rgba(255, 91, 85, 0.22);
}

.run-loading__text {
  min-height: 22px;
  margin-top: 10px;
  color: #d7e7ec;
  font-size: 15px;
  font-weight: 800;
  line-height: 1.35;
}

.run-loading__bar {
  position: relative;
  height: 10px;
  margin-top: 16px;
  overflow: hidden;
  border: 1px solid rgba(255, 216, 107, 0.36);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
}

.run-loading__bar span {
  position: absolute;
  inset: 1px auto 1px 1px;
  width: 44%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ff5b55, #ffd86b 48%, #8deeff);
  box-shadow: 0 0 18px rgba(255, 216, 107, 0.44);
  animation: run-loading-bar 1.18s ease-in-out infinite;
}

@keyframes run-loading-drift {
  0%, 100% {
    transform: scale(1.02) translateY(0);
  }

  50% {
    transform: scale(1.05) translateY(-8px);
  }
}

@keyframes run-loading-scan {
  0% {
    transform: translateY(-32%);
  }

  100% {
    transform: translateY(32%);
  }
}

@keyframes run-loading-pulse {
  0%, 100% {
    transform: translateY(0) scale(1);
    box-shadow: 0 18px 38px rgba(0, 0, 0, 0.52), 0 0 28px rgba(255, 74, 65, 0.26);
  }

  50% {
    transform: translateY(-4px) scale(1.018);
    box-shadow: 0 22px 42px rgba(0, 0, 0, 0.56), 0 0 38px rgba(141, 238, 255, 0.3);
  }
}

@keyframes run-loading-beacon {
  0%, 100% {
    opacity: 0.34;
    transform: scaleX(0.78);
  }

  50% {
    opacity: 1;
    transform: scaleX(1);
  }
}

@keyframes run-loading-bar {
  0% {
    transform: translateX(-18%);
  }

  100% {
    transform: translateX(154%);
  }
}

noscript {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 4;
  padding: 12px 14px;
  border-radius: 8px;
  background: #201319;
  color: #ffd6dc;
  font-size: 14px;
  text-align: center;
}

.school-zombie-rank-layer {
  position: absolute;
  inset: 0;
  z-index: 8;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(70px, 14%, 128px) 18px 18px;
  background: rgba(2, 4, 6, 0.18);
  overflow-y: auto;
  overscroll-behavior: contain;
  pointer-events: auto;
  -webkit-overflow-scrolling: touch;
}

.school-zombie-rank-layer--gameover {
  padding: 250px 42px 0;
  background: transparent;
}

.school-zombie-rank-prep {
  position: absolute;
  inset: 0;
  z-index: 7;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 254px 42px 0;
  pointer-events: none;
}

.school-zombie-rank-prep__panel {
  width: min(100%, 388px);
  padding: 14px 16px 15px;
  border: 1px solid rgba(141, 238, 255, 0.52);
  border-radius: 8px;
  background:
    linear-gradient(90deg, rgba(141, 238, 255, 0.07), rgba(255, 216, 107, 0.08)),
    rgba(3, 8, 12, 0.82);
  box-shadow:
    inset 0 0 18px rgba(69, 215, 255, 0.08),
    0 12px 28px rgba(0, 0, 0, 0.36),
    0 0 18px rgba(69, 215, 255, 0.12);
  overflow: hidden;
}

.school-zombie-rank-prep__signal {
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-bottom: 7px;
}

.school-zombie-rank-prep__signal span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #8deeff;
  box-shadow: 0 0 12px rgba(141, 238, 255, 0.9);
  animation: rank-loader-beacon 0.9s ease-in-out infinite;
}

.school-zombie-rank-prep__signal span:nth-child(2) {
  animation-delay: 0.15s;
  background: #ffd86b;
  box-shadow: 0 0 12px rgba(255, 216, 107, 0.9);
}

.school-zombie-rank-prep__signal span:nth-child(3) {
  animation-delay: 0.3s;
}

.school-zombie-rank-prep__label {
  color: #e9fbff;
  font-size: 13px;
  font-weight: 900;
  text-align: center;
  text-shadow: 0 2px 0 #050607;
}

.school-zombie-rank-prep__bar {
  position: relative;
  height: 5px;
  margin-top: 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.46);
  overflow: hidden;
}

.school-zombie-rank-prep__bar span {
  position: absolute;
  inset: 0;
  width: 42%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(141, 238, 255, 0), #8deeff, #ffd86b);
  box-shadow: 0 0 14px rgba(141, 238, 255, 0.8);
  animation: rank-loader-bar 1.05s ease-in-out infinite;
}

.school-zombie-rank-dialog {
  flex: 0 0 auto;
  width: min(100%, 424px);
  max-height: calc(100% - 18px);
  margin: 0;
  padding: 22px 22px 20px;
  border: 2px solid rgba(255, 107, 104, 0.78);
  border-radius: 8px;
  background: rgba(8, 13, 17, 0.82);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.48);
  color: #f8fbff;
  text-align: center;
  overflow-y: auto;
  backdrop-filter: blur(3px);
  -webkit-overflow-scrolling: touch;
}

.school-zombie-rank-dialog--gameover {
  width: min(100%, 388px);
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  overflow: visible;
}

.school-zombie-rank-kicker {
  margin-bottom: 4px;
  color: #8deeff;
  font-family: Arial, sans-serif;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
}

.school-zombie-rank-title {
  color: #ff7470;
  font-size: 30px;
  font-weight: 900;
  line-height: 1.12;
  text-shadow: 0 3px 0 #050607;
}

.school-zombie-rank-score {
  margin: 10px 0 16px;
  color: #ffd86b;
  font-size: 15px;
  font-weight: 900;
}

.school-zombie-rank-input {
  width: 100%;
  height: 48px;
  border: 2px solid rgba(141, 238, 255, 0.72);
  border-radius: 6px;
  outline: none;
  background: rgba(2, 5, 8, 0.9);
  color: #ffffff;
  font: 900 20px "Pretendard Variable", Pretendard, "Segoe UI", Arial, sans-serif;
  text-align: center;
}

.school-zombie-rank-input:focus {
  border-color: #ffd86b;
  box-shadow: 0 0 0 3px rgba(255, 216, 107, 0.22);
}

.school-zombie-rank-input:disabled {
  color: #a7c8d0;
  border-color: rgba(141, 238, 255, 0.36);
  background: rgba(2, 5, 8, 0.72);
}

.school-zombie-rank-loader {
  display: none;
  position: relative;
  margin-top: 14px;
  padding: 12px 14px 13px;
  border: 1px solid rgba(141, 238, 255, 0.42);
  border-radius: 6px;
  background:
    linear-gradient(90deg, rgba(141, 238, 255, 0.07), rgba(255, 216, 107, 0.08)),
    rgba(3, 8, 12, 0.86);
  box-shadow:
    inset 0 0 18px rgba(69, 215, 255, 0.08),
    0 0 18px rgba(69, 215, 255, 0.12);
  overflow: hidden;
}

.school-zombie-rank-loader::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(141, 238, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(141, 238, 255, 0.05) 1px, transparent 1px);
  background-size: 100% 9px, 18px 100%;
  opacity: 0.58;
  pointer-events: none;
}

.school-zombie-rank-loader::after {
  content: "";
  position: absolute;
  top: -20%;
  bottom: -20%;
  left: -38%;
  width: 36%;
  background: linear-gradient(90deg, transparent, rgba(141, 238, 255, 0.28), transparent);
  transform: skewX(-18deg);
  animation: rank-loader-scan 1.35s linear infinite;
  pointer-events: none;
}

.school-zombie-rank-dialog.is-submitting .school-zombie-rank-loader {
  display: block;
}

.school-zombie-rank-loader__signal {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-bottom: 7px;
}

.school-zombie-rank-loader__signal span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #8deeff;
  box-shadow: 0 0 12px rgba(141, 238, 255, 0.9);
  animation: rank-loader-beacon 0.9s ease-in-out infinite;
}

.school-zombie-rank-loader__signal span:nth-child(2) {
  animation-delay: 0.15s;
  background: #ffd86b;
  box-shadow: 0 0 12px rgba(255, 216, 107, 0.9);
}

.school-zombie-rank-loader__signal span:nth-child(3) {
  animation-delay: 0.3s;
}

.school-zombie-rank-loader__label {
  position: relative;
  z-index: 1;
  color: #e9fbff;
  font-size: 13px;
  font-weight: 900;
  text-shadow: 0 2px 0 #050607;
}

.school-zombie-rank-loader__bar {
  position: relative;
  z-index: 1;
  height: 5px;
  margin-top: 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.46);
  overflow: hidden;
}

.school-zombie-rank-loader__bar span {
  position: absolute;
  inset: 0;
  width: 42%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(141, 238, 255, 0), #8deeff, #ffd86b);
  box-shadow: 0 0 14px rgba(141, 238, 255, 0.8);
  animation: rank-loader-bar 1.05s ease-in-out infinite;
}

.school-zombie-rank-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(96px, 0.62fr);
  gap: 12px;
  margin-top: 16px;
}

.school-zombie-rank-actions button {
  height: 48px;
  border: 0;
  border-radius: 6px;
  color: #081016;
  font: 900 16px "Pretendard Variable", Pretendard, "Segoe UI", Arial, sans-serif;
  cursor: pointer;
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, 0.26);
}

.school-zombie-rank-actions button:disabled {
  cursor: default;
  filter: grayscale(0.45);
  opacity: 0.7;
}

.school-zombie-rank-submit {
  background: linear-gradient(180deg, #8deeff 0%, #3aa9ff 100%);
}

.school-zombie-rank-skip {
  background: linear-gradient(180deg, #ffe083 0%, #c8892f 100%);
}

@keyframes rank-loader-scan {
  0% {
    transform: translateX(0) skewX(-18deg);
  }

  100% {
    transform: translateX(390%) skewX(-18deg);
  }
}

@keyframes rank-loader-beacon {
  0%,
  100% {
    transform: scale(0.72);
    opacity: 0.45;
  }

  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

@keyframes rank-loader-bar {
  0% {
    transform: translateX(-110%);
  }

  100% {
    transform: translateX(250%);
  }
}

@media (max-width: 720px) {
  #game-shell {
    box-shadow: none;
  }
}