:root {
  color-scheme: dark;
  --bg: #06080d;
  --panel: rgba(15, 19, 28, 0.82);
  --panel-strong: rgba(24, 30, 42, 0.94);
  --text: #f5f7fb;
  --muted: #9da8ba;
  --line: rgba(255, 255, 255, 0.13);
  --blade: #39d5ff;
  --power: 60;
  --blade-base: 180px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
}

button {
  border: 0;
  color: inherit;
  font: inherit;
  -webkit-tap-highlight-color: transparent;
}

.app-shell {
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto;
  width: 100%;
  min-height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(circle at 26% 15%, rgba(60, 116, 153, 0.18), transparent 26rem),
    radial-gradient(circle at 76% 28%, rgba(166, 61, 88, 0.15), transparent 24rem),
    linear-gradient(180deg, #090c14 0%, #05060a 100%);
}

.stage {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 0;
  padding: calc(18px + var(--safe-top)) 18px 18px;
}

.stars {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.9) 0 1px, transparent 1.5px),
    radial-gradient(circle, rgba(112, 190, 255, 0.75) 0 1px, transparent 1.8px);
  background-position: 0 0, 44px 68px;
  background-size: 98px 118px, 142px 164px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 82%);
  opacity: 0.24;
}

.energy-field {
  position: absolute;
  inset: auto -20% 11% -20%;
  height: 42%;
  background:
    radial-gradient(ellipse at center, color-mix(in srgb, var(--blade), transparent 74%), transparent 58%),
    linear-gradient(90deg, transparent, color-mix(in srgb, var(--blade), transparent 88%), transparent);
  filter: blur(20px);
  opacity: 0.32;
  transform: translateY(18%);
  transition: opacity 240ms ease;
}

.status-row,
.readout,
.control-dock {
  position: relative;
  z-index: 5;
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: #eef4ff;
  font-size: 0.95rem;
  font-weight: 750;
  letter-spacing: 0;
}

.brand span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.icon-button,
.power-button,
.swatch,
.mode {
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease, box-shadow 150ms ease;
}

.icon-button:active,
.power-button:active,
.swatch:active,
.mode:active {
  transform: scale(0.95);
}

.icon-button {
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 1.45rem;
}

.icon-button[aria-pressed="true"] {
  border-color: color-mix(in srgb, var(--blade), white 10%);
  background: color-mix(in srgb, var(--blade), transparent 78%);
  color: white;
}

.sabre {
  position: relative;
  align-self: end;
  justify-self: center;
  width: min(54vw, 260px);
  height: min(67svh, 620px);
  min-height: 390px;
  transform-origin: 50% calc(100% - 86px);
  transition: transform 160ms ease-out;
}

.sabre[data-swing="true"] {
  transform: translateX(var(--drift, 0px)) translateY(var(--lift, 0px)) rotate(var(--tilt, 0deg));
}

.blade-wrap {
  position: absolute;
  left: 50%;
  bottom: var(--blade-base);
  z-index: 2;
  width: 86px;
  height: calc(100% - var(--blade-base));
  min-width: 86px;
  transform-origin: 50% 100%;
  transform: translateX(-50%) scaleY(0.04);
  opacity: 0.22;
  transition: transform 520ms cubic-bezier(0.2, 0.9, 0.2, 1), opacity 320ms ease;
}

.sabre[data-active="true"] .blade-wrap {
  transform: translateX(-50%) scaleY(calc(var(--power) / 100));
  opacity: 1;
}

.blade,
.blade-core,
.blade-tip {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.blade {
  top: 0;
  bottom: 0;
  width: 26px;
  border-radius: 999px 999px 18px 18px;
  background: var(--blade);
  filter: blur(11px);
  box-shadow:
    0 0 28px var(--blade),
    0 0 68px var(--blade),
    0 0 116px color-mix(in srgb, var(--blade), white 10%);
  animation: pulse 1.7s ease-in-out infinite;
}

.blade-core {
  top: 8px;
  bottom: 0;
  width: 10px;
  border-radius: 999px 999px 10px 10px;
  background: linear-gradient(90deg, #dff8ff, white 44%, color-mix(in srgb, var(--blade), white 54%));
  box-shadow: 0 0 10px white;
}

.blade-tip {
  top: 0;
  width: 26px;
  height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle at center, white 0 22%, var(--blade) 55%, transparent 72%);
  filter: blur(3px);
}

.hilt {
  position: absolute;
  bottom: 0;
  left: 50%;
  z-index: 3;
  display: grid;
  grid-template-rows: 34px 1fr 18px;
  justify-items: center;
  width: 112px;
  height: 192px;
  background: none;
  transform: translateX(-50%);
}

.hilt::before {
  content: "";
  position: absolute;
  top: 30px;
  left: 50%;
  z-index: 2;
  width: 72px;
  height: 140px;
  border-radius: 8px 8px 20px 20px;
  background:
    linear-gradient(90deg, #10141c 0 14%, #8c98a7 18% 24%, #202735 28% 72%, #c8d3df 76% 82%, #11151d 86%),
    linear-gradient(180deg, #323b49, #121722 62%, #05070a);
  box-shadow:
    inset 0 0 20px rgba(255, 255, 255, 0.13),
    0 28px 80px rgba(0, 0, 0, 0.55);
  transform: translateX(-50%);
}

.hilt::after {
  content: "";
  position: absolute;
  top: 30px;
  left: 50%;
  z-index: 4;
  width: 2px;
  height: 150px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  opacity: 0.42;
  transform: translateX(-50%);
}

.emitter {
  position: relative;
  z-index: 5;
  width: 104px;
  height: 32px;
  margin-top: 0;
  border-radius: 8px;
  background: linear-gradient(180deg, #dce3ea, #697381 42%, #161b23);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.72),
    0 -4px 24px color-mix(in srgb, var(--blade), transparent 72%);
}

.emitter::before {
  content: "";
  position: absolute;
  top: 4px;
  left: 50%;
  width: 34px;
  height: 18px;
  border-radius: 999px;
  background: #151a22;
  box-shadow:
    inset 0 2px 5px rgba(0, 0, 0, 0.72),
    0 0 18px color-mix(in srgb, var(--blade), transparent 56%);
  transform: translateX(-50%);
}

.emitter::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 15px;
  width: 14px;
  height: 22px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--blade), white 56%);
  box-shadow:
    0 0 14px var(--blade),
    0 0 32px color-mix(in srgb, var(--blade), transparent 35%);
  transform: translateX(-50%);
}

.grip {
  position: relative;
  z-index: 5;
  display: grid;
  gap: 10px;
  align-self: start;
  width: 58px;
  margin-top: 44px;
}

.grip span {
  display: block;
  height: 16px;
  border-radius: 5px;
  background: linear-gradient(90deg, #050609, #242a35 48%, #07080b);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.pommel {
  position: absolute;
  bottom: 0;
  z-index: 5;
  width: 72px;
  height: 26px;
  border-radius: 0 0 18px 18px;
  background: linear-gradient(180deg, #4a5360, #10131a);
}

.readout {
  width: min(100%, 430px);
  margin: 0 auto;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(10, 13, 20, 0.62);
  backdrop-filter: blur(18px);
}

.readout div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.readout strong {
  color: #ffffff;
}

meter {
  display: block;
  width: 100%;
  height: 8px;
}

meter::-webkit-meter-bar {
  border: 0;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.1);
}

meter::-webkit-meter-optimum-value {
  border-radius: 99px;
  background: var(--blade);
  box-shadow: 0 0 16px var(--blade);
}

.control-dock {
  display: grid;
  grid-template-columns: 74px 1fr auto;
  align-items: center;
  gap: 12px;
  width: min(100% - 24px, 540px);
  margin: 0 auto calc(12px + var(--safe-bottom));
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(22px);
}

.power-button {
  position: relative;
  width: 62px;
  height: 62px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 50%;
  background:
    radial-gradient(circle at 50% 58%, rgba(255, 255, 255, 0.1), transparent 40%),
    #151a24;
}

.power-button span {
  width: 21px;
  height: 29px;
  border: 4px solid currentColor;
  border-top-color: transparent;
  border-radius: 0 0 18px 18px;
  color: #cbd4df;
}

.power-button span::before {
  content: "";
  position: absolute;
  top: 17px;
  left: calc(50% - 2px);
  width: 4px;
  height: 18px;
  border-radius: 99px;
  background: currentColor;
}

.power-button[aria-pressed="true"] {
  background:
    radial-gradient(circle, color-mix(in srgb, var(--blade), transparent 48%), transparent 64%),
    #161c27;
  box-shadow: 0 0 26px color-mix(in srgb, var(--blade), transparent 34%);
}

.power-button[aria-pressed="true"] span {
  color: white;
}

.swatches {
  display: grid;
  grid-template-columns: repeat(4, minmax(34px, 1fr));
  gap: 8px;
  min-width: 0;
}

.swatch {
  aspect-ratio: 1;
  min-width: 34px;
  border: 2px solid transparent;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 0.9), transparent 18%),
    var(--swatch);
  box-shadow: 0 0 20px color-mix(in srgb, var(--swatch), transparent 45%);
}

.swatch.is-selected {
  border-color: white;
  box-shadow:
    0 0 0 3px color-mix(in srgb, var(--swatch), transparent 62%),
    0 0 24px color-mix(in srgb, var(--swatch), transparent 28%);
}

.mode-group {
  display: grid;
  grid-template-columns: repeat(3, 42px);
  gap: 6px;
}

.mode {
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.07);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
}

.mode.is-selected {
  border-color: color-mix(in srgb, var(--blade), white 12%);
  background: color-mix(in srgb, var(--blade), transparent 78%);
  color: white;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 0.84;
  }
  50% {
    opacity: 1;
  }
}

@media (max-width: 410px) {
  .stage {
    padding-inline: 14px;
  }

  .control-dock {
    grid-template-columns: 62px 1fr;
  }

  .mode-group {
    grid-column: 1 / -1;
    grid-template-columns: repeat(3, 1fr);
  }

  .mode {
    width: auto;
  }

  .sabre {
    width: min(68vw, 238px);
    height: min(62svh, 540px);
  }
}

@media (min-width: 720px) {
  .stage {
    padding-inline: 32px;
  }

  .sabre {
    height: min(70svh, 700px);
  }
}