:root {
  color-scheme: dark;
  --ink: #f7f3ea;
  --muted: #b6b2a9;
  --red: #dc1f2b;
  --gold: #f4c857;
  --green: #35d872;
  --lime: #bff15b;
  --danger: #ff3948;
  --line: rgba(255, 255, 255, 0.16);
  --panel: rgba(12, 14, 14, 0.82);
  --panel-strong: rgba(10, 12, 12, 0.92);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 22% 12%, rgba(220, 31, 43, 0.2), transparent 28rem),
    linear-gradient(145deg, #111614 0%, #070908 54%, #15100e 100%);
}

.shell {
  width: min(100vw, 1480px);
  height: 100svh;
  min-height: 0;
  margin: 0 auto;
  padding: 18px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 14px;
  overflow: hidden;
}

.hud {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 132px minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
  isolation: isolate;
}

.hud::before {
  content: "";
  position: absolute;
  inset: 12px 5% auto;
  height: 2px;
  z-index: -1;
  background: linear-gradient(90deg, transparent, rgba(244, 200, 87, 0.65), transparent);
  box-shadow: 0 0 28px rgba(244, 200, 87, 0.22);
}

.fighter-card,
.round-panel,
.control-strip {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: var(--panel);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.24);
}

.fighter-card {
  position: relative;
  min-width: 0;
  padding: 14px 16px 13px;
  display: grid;
  grid-template-columns: minmax(150px, 220px) minmax(160px, 1fr);
  gap: 10px 14px;
  align-items: center;
  overflow: hidden;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.09), transparent 32%),
    linear-gradient(180deg, rgba(23, 27, 25, 0.96), var(--panel-strong));
  box-shadow:
    0 18px 54px rgba(0, 0, 0, 0.36),
    inset 0 1px 0 rgba(255, 255, 255, 0.11),
    inset 0 -1px 0 rgba(0, 0, 0, 0.5);
}

.fighter-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  background: linear-gradient(180deg, var(--gold), var(--red));
  box-shadow: 0 0 24px rgba(220, 31, 43, 0.4);
}

.fighter-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(115deg, transparent 0 20px, rgba(255, 255, 255, 0.035) 20px 21px),
    linear-gradient(90deg, rgba(220, 31, 43, 0.1), transparent 38%);
  opacity: 0.7;
}

.fighter-card.right {
  text-align: right;
  background:
    linear-gradient(225deg, rgba(255, 255, 255, 0.09), transparent 32%),
    linear-gradient(180deg, rgba(23, 27, 25, 0.96), var(--panel-strong));
}

.fighter-card.right::before {
  right: 0;
  left: auto;
}

.fighter-card.right::after {
  background:
    repeating-linear-gradient(65deg, transparent 0 20px, rgba(255, 255, 255, 0.035) 20px 21px),
    linear-gradient(270deg, rgba(220, 31, 43, 0.1), transparent 38%);
}

.fighter-card > * {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-size: clamp(1rem, 1.7vw, 1.55rem);
  line-height: 1;
  letter-spacing: 0;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.45);
}

.meter {
  position: relative;
  grid-column: 1 / -1;
  height: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 42%),
    rgba(0, 0, 0, 0.52);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.08),
    inset 0 -2px 6px rgba(0, 0, 0, 0.45);
}

.meter::before {
  content: "";
  position: absolute;
  inset: 2px;
  z-index: 2;
  pointer-events: none;
  border-radius: 4px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.32), transparent 38%),
    repeating-linear-gradient(90deg, transparent 0 calc(10% - 1px), rgba(0, 0, 0, 0.32) calc(10% - 1px) 10%);
  mix-blend-mode: screen;
  opacity: 0.52;
}

.meter span {
  position: relative;
  display: block;
  height: 100%;
  width: 100%;
  transition: width 120ms linear;
  border-radius: inherit;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.44),
    inset 0 -4px 8px rgba(0, 0, 0, 0.25),
    0 0 16px rgba(53, 216, 114, 0.22);
}

.meter span::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.22), transparent);
  transform: skewX(-18deg) translateX(-25%);
  opacity: 0.75;
}

.health span {
  background: linear-gradient(90deg, var(--green), var(--lime) 58%, var(--gold) 82%, var(--danger));
}

.health {
  height: 22px;
  border-color: rgba(255, 255, 255, 0.28);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.11),
    inset 0 -3px 8px rgba(0, 0, 0, 0.5),
    0 0 22px rgba(53, 216, 114, 0.1);
}

.fighter-card.right .health span {
  margin-left: auto;
  background: linear-gradient(270deg, var(--green), var(--lime) 58%, var(--gold) 82%, var(--danger));
}

.super {
  width: min(58%, 320px);
  height: 7px;
  border-radius: 5px;
  opacity: 0.86;
}

.super span {
  background: linear-gradient(90deg, #eef7ff, var(--gold), var(--red));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.42),
    0 0 14px rgba(244, 200, 87, 0.18);
}

.fighter-card.right .super span {
  margin-left: auto;
  background: linear-gradient(270deg, #eef7ff, var(--gold), var(--red));
}

.fighter-card.right .super {
  margin-left: auto;
}

.round-score {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.round-panel {
  position: relative;
  padding: 12px 10px;
  display: grid;
  place-items: center;
  text-align: center;
  overflow: hidden;
  border-radius: 8px;
  border-color: rgba(244, 200, 87, 0.28);
  background:
    radial-gradient(circle at 50% 14%, rgba(244, 200, 87, 0.24), transparent 54%),
    linear-gradient(180deg, rgba(28, 24, 17, 0.98), rgba(8, 10, 10, 0.94));
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.round-panel::before,
.round-panel::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(244, 200, 87, 0.7), transparent);
}

.round-panel::before {
  top: 8px;
}

.round-panel::after {
  bottom: 8px;
}

.round-panel p {
  position: relative;
  margin: 0;
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.round-panel strong {
  position: relative;
  font-size: 2.08rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: #fff7d8;
  text-shadow:
    0 0 12px rgba(244, 200, 87, 0.36),
    2px 2px 0 rgba(125, 17, 24, 0.8);
}

.stage-wrap {
  position: relative;
  width: min(100%, calc(var(--stage-max-height, 720px) * 16 / 9));
  max-width: 100%;
  max-height: 100%;
  aspect-ratio: 16 / 9;
  min-width: 0;
  min-height: 0;
  justify-self: center;
  align-self: center;
  outline: 1px solid rgba(255, 255, 255, 0.22);
  outline-offset: -1px;
  background: #090b0b;
  overflow: hidden;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  background: rgba(5, 7, 7, 0.62);
}

.overlay.hidden {
  display: none;
}

.overlay h2 {
  font-size: clamp(2rem, 7vw, 5.8rem);
  color: var(--ink);
  text-shadow: 5px 5px 0 #7d1118;
  text-transform: uppercase;
}

.overlay p {
  margin: 14px 0 0;
  color: var(--muted);
  font-weight: 800;
}

.overlay-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}

.overlay-actions.hidden {
  display: none;
}

.pause-menu {
  z-index: 5;
  background: rgba(5, 7, 7, 0.82);
}

.pause-menu h2 {
  letter-spacing: 0.08em;
}

.pause-menu p {
  margin-top: 12px;
}

.control-strip {
  padding: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.9rem;
}

kbd {
  min-width: 28px;
  height: 24px;
  margin-right: 5px;
  padding: 2px 7px;
  display: inline-grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
  color: var(--ink);
  font: 800 0.76rem/1 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.home-screen {
  position: fixed;
  inset: 0;
  z-index: 50;
  width: 100vw;
  height: 100vh;
  height: 100lvh;
  min-height: 100vh;
  min-height: 100lvh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: clamp(20px, 5vw, 72px);
  background:
    linear-gradient(90deg, rgba(5, 6, 6, 0.92) 0%, rgba(5, 6, 6, 0.74) 31%, rgba(5, 6, 6, 0.16) 61%, rgba(5, 6, 6, 0.24) 100%),
    radial-gradient(circle at 18% 50%, rgba(220, 31, 43, 0.2), transparent 28rem),
    url("assets/title-background.png") center / cover no-repeat,
    #070908;
  isolation: isolate;
}

.home-screen::before,
.home-screen::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.home-screen::before {
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(0, 0, 0, 0.46), transparent 24%, transparent 70%, rgba(0, 0, 0, 0.55)),
    radial-gradient(circle at 50% 50%, transparent 34%, rgba(0, 0, 0, 0.42) 100%);
}

.home-screen::after {
  z-index: -1;
  background: linear-gradient(105deg, rgba(125, 17, 24, 0.24), transparent 32%, transparent 100%);
  mix-blend-mode: screen;
  opacity: 0.72;
}

.home-screen.hidden {
  display: none;
}

.home-card {
  width: min(430px, 100%);
  padding: 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  text-align: left;
  backdrop-filter: none;
}

.home-eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-weight: 800;
  letter-spacing: 0.26em;
  font-size: clamp(0.68rem, 1.2vw, 0.78rem);
  text-transform: uppercase;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.9);
}

.home-title {
  margin: 0;
  font-size: clamp(3.15rem, 7.5vw, 6.1rem);
  line-height: 0.86;
  letter-spacing: 0;
  text-transform: uppercase;
  color: var(--ink);
  text-shadow:
    4px 4px 0 #7d1118,
    8px 8px 0 rgba(220, 31, 43, 0.34),
    0 18px 42px rgba(0, 0, 0, 0.95);
}

.home-subtitle {
  margin: 14px 0 18px;
  font-size: clamp(1.1rem, 2.4vw, 1.6rem);
  font-weight: 800;
  color: var(--red);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-shadow: 0 4px 18px rgba(0, 0, 0, 0.9);
}

.home-tagline {
  margin: 0 0 28px;
  max-width: 380px;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.55;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.95);
}

.home-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-start;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.btn-primary,
.btn-ghost {
  padding: 12px 26px;
  border: 1px solid var(--gold);
  font: 800 0.9rem/1 ui-sans-serif, system-ui;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, color 120ms ease;
}

.btn-primary {
  background: var(--red);
  color: var(--ink);
  border-color: var(--red);
  box-shadow: 4px 4px 0 #7d1118;
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 #7d1118;
}

.btn-ghost {
  background: transparent;
  color: var(--gold);
}

.btn-ghost:hover {
  background: rgba(244, 200, 87, 0.12);
}

.how-panel {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
  margin: 4px 0 18px;
  padding: 14px;
  border: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.52);
  color: var(--muted);
  font-size: 0.82rem;
  text-align: left;
  box-shadow: 0 18px 38px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(4px);
}

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

.home-hint {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.95);
}

@media (max-width: 760px) {
  .home-screen {
    align-items: flex-end;
    padding: 22px 18px 30px;
    background:
      linear-gradient(180deg, rgba(5, 6, 6, 0.16) 0%, rgba(5, 6, 6, 0.38) 38%, rgba(5, 6, 6, 0.94) 100%),
      url("assets/title-background.png") 61% center / cover no-repeat,
      #070908;
  }

  .home-card {
    width: 100%;
  }

  .home-title {
    max-width: 9ch;
    font-size: clamp(3rem, 15vw, 4.7rem);
  }

  .home-tagline {
    max-width: 31rem;
    margin-bottom: 20px;
  }

  .home-actions {
    gap: 10px;
  }

  .btn-primary,
  .btn-ghost {
    padding-inline: 18px;
  }

  .how-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.character-screen {
  position: fixed;
  inset: 0;
  z-index: 49;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 18% 14%, rgba(220, 31, 43, 0.32), transparent 32rem),
    radial-gradient(circle at 82% 86%, rgba(244, 200, 87, 0.16), transparent 30rem),
    linear-gradient(150deg, #1a0d0c 0%, #07090a 58%, #1a120a 100%);
  overflow-y: auto;
}

.character-screen.hidden {
  display: none;
}

.character-card-shell {
  width: min(960px, 100%);
  padding: 28px 32px 24px;
  border: 1px solid rgba(244, 200, 87, 0.28);
  background: rgba(8, 10, 10, 0.82);
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.5), inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  text-align: center;
  backdrop-filter: blur(6px);
}

.character-heading {
  margin: 6px 0 22px;
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  text-shadow: 3px 3px 0 #7d1118;
}

.character-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.character-card {
  position: relative;
  padding: 18px 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.46);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, box-shadow 120ms ease;
  font-family: inherit;
}

.character-card:hover {
  transform: translateY(-3px);
  border-color: rgba(244, 200, 87, 0.55);
}

.character-card.selected {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold) inset, 0 14px 30px rgba(244, 200, 87, 0.16);
  transform: translateY(-3px);
}

.character-portrait {
  width: 100%;
  aspect-ratio: 1 / 1;
  margin-bottom: 14px;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(0, 0, 0, 0.24));
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.character-portrait-image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center 22%;
}

.character-portrait-glyph {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.85);
}

.character-name {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.character-title {
  margin: 2px 0 8px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.character-bio {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.opponent-block {
  margin: 0 0 18px;
}

.opponent-preview {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
  border: 1px solid rgba(220, 31, 43, 0.4);
  background: rgba(40, 8, 8, 0.42);
  text-align: left;
}

.opponent-preview .character-portrait {
  height: 72px;
  width: 72px;
  margin: 0;
}

.opponent-preview .character-portrait-glyph {
  width: 42px;
  height: 42px;
  border-width: 2px;
}

.opponent-preview .character-name {
  font-size: 1rem;
}

.opponent-preview .character-title {
  color: #ff8a93;
}

.btn-primary[disabled] {
  opacity: 0.42;
  cursor: not-allowed;
  transform: none;
  box-shadow: 4px 4px 0 #7d1118;
}

.btn-primary[disabled]:hover {
  transform: none;
  box-shadow: 4px 4px 0 #7d1118;
}

@media (max-width: 760px) {
  .shell {
    padding: 10px;
  }

  .hud {
    grid-template-columns: 1fr 86px 1fr;
    gap: 8px;
  }

  .fighter-card {
    padding: 10px;
    grid-template-columns: 1fr;
  }

  .round-panel strong {
    font-size: 1.55rem;
  }

  .control-strip {
    justify-content: flex-start;
    font-size: 0.78rem;
  }
}

.mute-btn {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 30;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  backdrop-filter: blur(6px);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.mute-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.mute-btn[aria-pressed="true"] {
  color: var(--muted);
  border-color: rgba(220, 31, 43, 0.55);
}