:root {
  --bg: #0a0d12;
  --panel: rgba(10, 14, 20, 0.9);
  --panel-soft: rgba(12, 18, 28, 0.72);
  --line: rgba(255, 255, 255, 0.16);
  --text: #f8f8f8;
  --muted: rgba(255, 255, 255, 0.7);
  --red: #d53030;
  --blue: #2568da;
  --yellow: #f3c32d;
  --green: #17ad55;
  --orange: #ff8a1d;
  --gold: #f5d477;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

body {
  font-family: "Bahnschrift", "Yu Gothic UI", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 215, 120, 0.18), transparent 22%),
    radial-gradient(circle at 10% 10%, rgba(213, 48, 48, 0.18), transparent 28%),
    radial-gradient(circle at 90% 80%, rgba(37, 104, 218, 0.2), transparent 24%),
    linear-gradient(180deg, #10151c 0%, #06080c 100%);
  color: var(--text);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
  border: 0;
}

#app {
  width: 100%;
  height: 100%;
}

.screen {
  position: relative;
  width: 100%;
  height: 100%;
}

.grain::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 4px 4px, 4px 4px;
  mix-blend-mode: overlay;
  opacity: 0.18;
  pointer-events: none;
}

.title-screen {
  display: grid;
  grid-template-rows: 1fr minmax(180px, 30vh);
  cursor: pointer;
}

.title-hero {
  position: relative;
  display: grid;
  place-items: center;
  padding: 4vh 5vw 2vh;
}

.title-hero::after {
  content: "";
  position: absolute;
  width: min(42vw, 340px);
  height: min(42vw, 340px);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 217, 128, 0.44), rgba(255, 217, 128, 0) 68%);
  filter: blur(10px);
}

.title-trophy {
  position: relative;
  width: min(38vw, 280px);
  max-width: 82%;
  filter: drop-shadow(0 12px 22px rgba(0, 0, 0, 0.45));
  animation: float-trophy 2.6s ease-in-out infinite;
  z-index: 1;
}

.title-floor {
  position: relative;
  display: grid;
  place-items: center;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.85), rgba(0, 0, 0, 0.96)),
    radial-gradient(circle at 50% 10%, rgba(255, 255, 255, 0.08), transparent 36%);
  box-shadow: inset 0 18px 42px rgba(255, 255, 255, 0.05);
}

.press-start {
  font-size: clamp(1.1rem, 2vw, 1.6rem);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: white;
  text-shadow: 0 0 18px rgba(255, 255, 255, 0.25);
  animation: pulse-text 1.5s ease-in-out infinite;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  width: 100%;
  height: 100%;
}

.mode-tile {
  position: relative;
  display: grid;
  place-items: center;
  font-size: clamp(2rem, 5vw, 4.4rem);
  font-weight: 800;
  color: white;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: transform 180ms ease, filter 180ms ease;
  overflow: hidden;
  isolation: isolate;
}

.mode-tile::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent 42%),
    radial-gradient(circle at 70% 30%, rgba(255, 255, 255, 0.14), transparent 24%);
  z-index: -1;
}

.mode-tile:hover,
.mode-tile:focus-visible {
  transform: scale(1.02);
  filter: brightness(1.08);
}

.mode-tile.red {
  background: linear-gradient(135deg, #8c0000, var(--red));
}

.mode-tile.blue {
  background: linear-gradient(135deg, #12357a, var(--blue));
}

.mode-tile.yellow {
  background: linear-gradient(135deg, #936f07, var(--yellow));
  color: #1c1300;
}

.mode-tile.green {
  background: linear-gradient(135deg, #0c5d2f, var(--green));
}

.mode-tile .mode-label {
  position: relative;
  z-index: 1;
  text-shadow: 0 6px 20px rgba(0, 0, 0, 0.35);
}

.mode-tile .mode-label-online {
  max-width: 76%;
  font-size: clamp(1.55rem, 4vw, 3.1rem);
  line-height: 1.04;
  text-align: center;
}

.mode-tile.yellow .mode-label {
  color: white;
}

.settings-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(280px, 460px));
  gap: 22px;
  width: min(960px, calc(100% - 28px));
}

.settings-card {
  text-align: left;
}

.volume-control,
.settings-key-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  font-weight: 800;
}

.volume-control output {
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.volume-slider {
  width: 100%;
  margin: 18px 0 8px;
  accent-color: var(--yellow);
}

.settings-key-list {
  display: grid;
  gap: 10px;
  margin: 18px 0;
}

.settings-key-row {
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.key-bind-button {
  min-width: 124px;
  padding: 9px 13px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-weight: 900;
}

.key-bind-button.listening {
  background: var(--orange);
  color: #241000;
  animation: pulse-text 1s ease-in-out infinite;
}

.panel-screen {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.08), transparent 18%),
    linear-gradient(180deg, rgba(9, 12, 17, 0.88), rgba(4, 7, 11, 0.98));
}

.top-bar {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92px;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.96), rgba(0, 0, 0, 0.9)),
    radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.08), transparent 35%);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.bar-title {
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.back-button {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  width: 58px;
  height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.08);
  color: white;
  font-size: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.14);
  box-shadow: var(--shadow);
}

.panel-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 26px;
  padding: 32px 20px 34px;
}

.rule-row,
.stack-column {
  width: min(940px, calc(100% - 20px));
  display: flex;
  gap: 18px;
  justify-content: center;
  flex-wrap: wrap;
}

.stack-column {
  flex-direction: column;
  align-items: center;
}

.rule-card,
.config-card,
.sub-card {
  position: relative;
  border: 4px solid #080808;
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(236, 238, 243, 0.93));
  box-shadow: var(--shadow);
}

.rule-card {
  min-width: min(240px, 100%);
  padding: 26px 34px;
  font-size: clamp(1.2rem, 2.7vw, 1.8rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0c0f14;
  transition: transform 180ms ease, filter 180ms ease;
}

.rule-card:hover,
.rule-card:focus-visible,
.stage-card:hover,
.stage-card:focus-visible,
.character-card:hover,
.character-card:focus-visible,
.option-chip:hover,
.option-chip:focus-visible,
.counter-button:hover,
.counter-button:focus-visible,
.play-button:hover,
.play-button:focus-visible,
.secondary-button:hover,
.secondary-button:focus-visible,
.draw-button:hover,
.draw-button:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.05);
}

.config-card,
.sub-card {
  width: min(680px, 100%);
  padding: 24px 24px 28px;
}

.config-card {
  min-height: 170px;
}

.config-title {
  font-size: 0.96rem;
  font-weight: 800;
  color: #202833;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.value-display {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 84px;
  padding: 16px 18px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(9, 13, 19, 0.95), rgba(23, 31, 46, 0.9));
  color: white;
  font-weight: 800;
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.09);
}

.share-url-display {
  font-size: clamp(1rem, 1.9vw, 1.35rem);
  letter-spacing: 0.04em;
  text-transform: none;
  word-break: break-all;
}

.room-code-input {
  width: 100%;
  min-height: 72px;
  margin-top: 12px;
  border: 0;
  border-radius: 24px;
  padding: 16px 20px;
  background: linear-gradient(180deg, rgba(9, 13, 19, 0.95), rgba(23, 31, 46, 0.9));
  color: white;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 900;
  letter-spacing: 0.24em;
  text-align: center;
  text-transform: uppercase;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.09);
}

.room-code-input::placeholder {
  color: rgba(255, 255, 255, 0.34);
  letter-spacing: 0.18em;
}

.status-banner {
  width: min(760px, calc(100% - 20px));
  padding: 16px 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
  text-align: center;
  font-weight: 700;
  line-height: 1.5;
}

.status-banner.error {
  background: rgba(138, 22, 22, 0.28);
  border-color: rgba(255, 122, 122, 0.4);
  color: #ffe7e7;
}

.counter-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.counter-button {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: linear-gradient(180deg, #1c2430, #0c1018);
  color: white;
  font-size: 1.8rem;
  box-shadow: var(--shadow);
}

.option-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 18px;
}

.option-chip {
  min-width: 100px;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(17, 24, 37, 0.08);
  color: #0f1420;
  border: 2px solid rgba(13, 18, 26, 0.12);
  font-weight: 700;
}

.option-chip.selected {
  background: linear-gradient(135deg, #ffe4a5, #ffb03f);
  border-color: #d47600;
  color: #2c1400;
}

.play-button,
.secondary-button,
.draw-button {
  min-width: min(420px, 100%);
  padding: 18px 28px;
  border-radius: 26px;
  font-size: clamp(1.2rem, 2.5vw, 1.9rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: white;
  box-shadow: var(--shadow);
}

.play-button,
.draw-button {
  background: linear-gradient(180deg, #ffb654, var(--orange));
}

.secondary-button {
  background: linear-gradient(180deg, #2d3c56, #101722);
}

.subtle-text {
  color: var(--muted);
  font-size: 0.98rem;
  text-align: center;
}

.info-screen {
  width: min(980px, calc(100% - 28px));
  padding: 22px;
  border-radius: 32px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.info-title {
  margin: 0 0 10px;
  font-size: clamp(1.3rem, 2.4vw, 2rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.info-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 1rem;
}

.photos-layout,
.gacha-layout {
  display: grid;
  gap: 22px;
  width: min(1000px, calc(100% - 20px));
}

.photos-layout {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.photo-card,
.gacha-card {
  padding: 22px;
  border-radius: 28px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-align: center;
}

.photo-card img,
.gacha-trophy {
  width: min(100%, 250px);
  filter: drop-shadow(0 18px 24px rgba(0, 0, 0, 0.28));
}

.gacha-layout {
  grid-template-columns: minmax(260px, 420px);
  justify-content: center;
}

.gacha-rarity {
  display: inline-flex;
  margin-top: 14px;
  padding: 8px 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ffe6aa, #ffb72b);
  color: #341800;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.battle-screen {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.battle-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hud {
  position: absolute;
  left: 20px;
  right: 20px;
  top: 18px;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  pointer-events: none;
}

.hud-panel {
  min-width: 240px;
  padding: 14px 18px;
  border-radius: 24px;
  background: rgba(8, 12, 18, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hud-panel.align-right {
  text-align: right;
}

.hud-name {
  font-size: 0.92rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}

.hud-value {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  margin-top: 4px;
}

.hud-sub {
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.96rem;
}

.battle-top-center {
  position: absolute;
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
  min-width: 260px;
  padding: 12px 18px;
  border-radius: 22px;
  background: rgba(7, 10, 15, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  text-align: center;
  backdrop-filter: blur(10px);
}

.battle-rule {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.66);
}

.battle-clock {
  margin-top: 4px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
}

.battle-start-callout {
  position: absolute;
  left: 50%;
  top: 48%;
  z-index: 4;
  transform: translate(-50%, -50%) rotate(-3deg);
  color: #fff5be;
  font-family: Impact, Haettenschweiler, "Arial Narrow Bold", sans-serif;
  font-size: clamp(4.5rem, 15vw, 10rem);
  font-style: italic;
  font-weight: 900;
  letter-spacing: 0.03em;
  line-height: 0.85;
  pointer-events: none;
  text-shadow: 0 5px 0 #9f2d10, 0 10px 20px rgba(42, 12, 4, 0.45);
  animation: battle-callout-in 240ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

.battle-start-callout.is-go {
  color: #ffffff;
  text-shadow: 0 5px 0 #0d7185, 0 10px 24px rgba(0, 68, 91, 0.42);
}

.battle-start-callout[hidden] {
  display: none;
}

@keyframes battle-callout-in {
  from {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.48) rotate(-3deg);
  }
  to {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1) rotate(-3deg);
  }
}

.battle-combo-banner {
  position: absolute;
  left: 50%;
  top: 108px;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.battle-combo-banner[hidden] {
  display: none !important;
}

.combo-pill {
  min-width: 210px;
  padding: 12px 18px 13px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  text-align: center;
}

.combo-pill-left {
  background: linear-gradient(180deg, rgba(180, 36, 36, 0.9), rgba(102, 12, 12, 0.88));
}

.combo-pill-right {
  background: linear-gradient(180deg, rgba(31, 103, 224, 0.9), rgba(11, 49, 114, 0.88));
}

.combo-pill-label {
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
}

.combo-pill-value {
  margin-top: 4px;
  font-size: clamp(1.3rem, 2.6vw, 2rem);
  font-weight: 900;
  color: white;
}

.combo-pill-target {
  margin-top: 2px;
  font-size: 0.84rem;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.controls-card {
  position: absolute;
  left: 20px;
  bottom: 20px;
  max-width: min(540px, calc(100% - 40px));
  padding: 16px 18px;
  border-radius: 24px;
  background: rgba(6, 10, 15, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.controls-title {
  margin-bottom: 8px;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: rgba(255, 255, 255, 0.64);
}

.controls-copy {
  margin: 0;
  line-height: 1.55;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.86);
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(5, 8, 12, 0.56);
  backdrop-filter: blur(4px);
}

.overlay[hidden] {
  display: none !important;
}

.overlay-card {
  width: min(620px, calc(100% - 30px));
  padding: 28px 28px 30px;
  border-radius: 32px;
  background: rgba(8, 12, 19, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow);
  text-align: center;
}

.overlay-title {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.overlay-copy {
  margin: 14px 0 24px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.82);
}

.result-summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0 10px;
}

.result-slot {
  padding: 18px 18px 16px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  text-align: left;
}

.result-slot-winner {
  border-color: rgba(255, 215, 111, 0.9);
  box-shadow: inset 0 0 0 1px rgba(255, 215, 111, 0.28), 0 0 26px rgba(255, 190, 80, 0.18);
  background: linear-gradient(180deg, rgba(255, 229, 149, 0.18), rgba(255, 255, 255, 0.08));
}

.result-slot-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.result-slot-label {
  font-size: 0.86rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}

.result-slot-name {
  margin-top: 8px;
  font-size: 1.24rem;
  font-weight: 900;
  letter-spacing: 0.05em;
}

.winner-crown {
  color: #ffd86a;
  font-size: 1.75rem;
  line-height: 1;
  filter: drop-shadow(0 0 10px rgba(255, 198, 71, 0.45));
}

.overlay-controls {
  margin: 0 auto 22px;
  padding: 18px 18px 16px;
  border-radius: 24px;
  background: rgba(6, 10, 15, 0.76);
  border: 1px solid rgba(255, 255, 255, 0.12);
  text-align: left;
}

.overlay-settings .small-note {
  margin: 0 0 14px;
}

.overlay-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.small-note {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.65);
}

.selection-summary {
  width: min(1100px, calc(100% - 20px));
}

.stage-select-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  width: min(1100px, calc(100% - 20px));
}

.stage-card {
  text-align: left;
  width: 100%;
  padding: 18px;
  border-radius: 28px;
  background: rgba(12, 18, 28, 0.82);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  transition: transform 180ms ease, filter 180ms ease, border-color 180ms ease;
}

.stage-card.selected {
  border-color: rgba(255, 214, 120, 0.95);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45), inset 0 0 0 1px rgba(255, 214, 120, 0.4);
}

.stage-preview {
  position: relative;
  overflow: hidden;
  height: 180px;
  margin-bottom: 16px;
  border-radius: 22px;
  background:
    radial-gradient(circle at 50% 24%, rgba(255, 245, 194, 0.54), transparent 22%),
    linear-gradient(180deg, #dff4ff 0%, #9fc5e3 54%, #6d7e92 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.stage-preview-floor,
.stage-preview-platform,
.stage-preview-wall {
  position: absolute;
}

.stage-preview-floor {
  left: 0;
  right: 0;
  bottom: 0;
  height: 42px;
  background: linear-gradient(180deg, rgba(106, 124, 146, 0.96), rgba(60, 71, 87, 0.98));
}

.stage-preview-platform {
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff, #b8c7d8);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.18);
}

.stage-preview-platform.center {
  left: 50%;
  bottom: 72px;
  width: 160px;
  transform: translateX(-50%);
}

.stage-preview-platform.left {
  left: 48px;
  bottom: 104px;
  width: 92px;
}

.stage-preview-platform.right {
  right: 48px;
  bottom: 104px;
  width: 92px;
}

.stage-preview.wall-chamber {
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 244, 196, 0.46), transparent 22%),
    linear-gradient(180deg, #e8efff 0%, #bec6dd 46%, #717487 100%);
}

.stage-preview.air-dome {
  background:
    radial-gradient(circle at 50% 18%, rgba(255, 255, 255, 0.7), transparent 22%),
    linear-gradient(180deg, #eef9ff 0%, #ccf1ff 42%, #9bd5f0 72%, #5fb0d8 100%);
}

.stage-preview-wall {
  bottom: 42px;
  width: 34px;
  height: 108px;
  background: linear-gradient(180deg, #7f889d, #5d6578);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16);
}

.stage-preview-wall.left {
  left: 0;
  border-top-right-radius: 18px;
}

.stage-preview-wall.right {
  right: 0;
  border-top-left-radius: 18px;
}

.stage-preview-stream {
  position: absolute;
  bottom: 0;
  width: 44px;
  height: 100%;
  border-radius: 999px 999px 26px 26px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(225, 248, 255, 0.2) 35%, rgba(220, 247, 255, 0.65) 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22), 0 0 24px rgba(164, 236, 255, 0.28);
}

.stage-preview-stream::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 18px;
  height: 118px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0), rgba(245, 253, 255, 0.88));
  filter: blur(1px);
}

.stage-preview-stream.left {
  left: 54px;
}

.stage-preview-stream.center {
  left: 50%;
  transform: translateX(-50%);
}

.stage-preview-stream.right {
  right: 54px;
}

.stage-card-name {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.stage-card-summary {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.55;
}

.stage-card-detail {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.92rem;
  line-height: 1.45;
}

.stage-select-screen,
.character-select-screen {
  overflow-y: auto;
}

.online-room-screen {
  overflow-y: auto;
}

.stage-select-screen .top-bar,
.character-select-screen .top-bar {
  position: sticky;
  top: 0;
  z-index: 4;
}

.stage-select-screen .panel-body,
.character-select-screen .panel-body {
  justify-content: flex-start;
  padding-top: 24px;
  padding-bottom: 120px;
}

.online-room-screen .panel-body {
  padding-bottom: 188px;
}

.stage-select-screen .play-button,
.character-select-screen .play-button {
  position: sticky;
  bottom: 18px;
  z-index: 3;
}

.online-room-footer {
  position: sticky;
  bottom: 18px;
  z-index: 3;
  width: min(940px, calc(100% - 20px));
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.character-select-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  width: min(1180px, calc(100% - 20px));
}

.character-slot {
  padding: 20px;
  border-radius: 30px;
  background: var(--panel-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.character-slot-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.character-slot-tag,
.character-slot-picked {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.character-slot-tag {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.86);
}

.character-slot-picked {
  background: linear-gradient(135deg, #ffdf8b, #ffaf34);
  color: #301500;
}

.character-card-grid {
  display: grid;
  gap: 14px;
}

.online-character-grid {
  margin-top: 18px;
}

.character-card {
  text-align: left;
  width: 100%;
  padding: 18px 18px 16px;
  cursor: pointer;
  border-radius: 24px;
  background: rgba(12, 18, 28, 0.78);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: var(--shadow);
  transition: transform 180ms ease, filter 180ms ease, border-color 180ms ease;
}

.character-card.selected {
  border-color: rgba(255, 214, 120, 0.95);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45), inset 0 0 0 1px rgba(255, 214, 120, 0.4);
}

.character-card:focus-visible {
  outline: 3px solid rgba(255, 214, 120, 0.94);
  outline-offset: 4px;
}

.character-name-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.character-portrait-shell {
  position: relative;
  overflow: hidden;
  margin-top: 14px;
  border-radius: 22px;
  background:
    radial-gradient(circle at 24% 18%, rgba(255, 255, 255, 0.28), transparent 28%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.character-portrait {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.character-card.selected .character-portrait-shell {
  border-color: rgba(255, 214, 120, 0.62);
  box-shadow:
    0 14px 34px rgba(0, 0, 0, 0.24),
    inset 0 0 0 1px rgba(255, 214, 120, 0.16);
}

.character-name {
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.character-weapon {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.84);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.character-summary {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.78);
  line-height: 1.55;
  font-size: 0.95rem;
}

.character-move-details {
  margin-top: 14px;
}

.character-move-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 42px;
  padding: 10px 12px;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  list-style: none;
  text-transform: uppercase;
}

.character-move-details summary::-webkit-details-marker {
  display: none;
}

.character-move-details summary::after {
  content: "+";
  font-size: 1.2rem;
  line-height: 1;
}

.character-move-details[open] summary::after {
  content: "-";
}

.character-moves {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.character-move {
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.4;
  font-size: 0.9rem;
}

@keyframes float-trophy {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes pulse-text {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 1;
  }
}

@media (max-width: 720px) {
  .top-bar {
    justify-content: flex-end;
    padding-left: 88px;
  }

  .bar-title {
    width: 100%;
    text-align: center;
    font-size: clamp(1.15rem, 6vw, 1.5rem);
    letter-spacing: 0.08em;
  }

  .mode-tile {
    font-size: clamp(1.4rem, 8vw, 2.7rem);
  }

  .stage-select-grid,
  .character-select-grid {
    grid-template-columns: 1fr;
  }

  .settings-layout {
    grid-template-columns: 1fr;
  }

  .result-summary {
    grid-template-columns: 1fr;
  }

  .hud {
    left: 12px;
    right: 12px;
    top: 12px;
    flex-direction: column;
  }

  .hud-panel {
    min-width: 0;
  }

  .battle-top-center {
    top: auto;
    bottom: 140px;
    min-width: 210px;
  }

  .controls-card {
    right: 12px;
    left: 12px;
    bottom: 12px;
    max-width: none;
  }
}