arena/src/styles.css

:root {
  color-scheme: dark;
  font-family:
    Inter, Pretendard, "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  background: #141612;
  color: #f6f1dd;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

#app {
  display: grid;
  min-height: 100vh;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  background:
    linear-gradient(135deg, rgb(112 53 29 / 0.16), transparent 30%),
    linear-gradient(180deg, #171912, #0d0f0c);
}

.fighter-entry {
  display: grid;
  align-content: center;
  gap: 28px;
  padding: clamp(24px, 5vw, 48px);
  border-right: 1px solid rgb(230 207 134 / 0.14);
}

.entry-copy {
  display: grid;
  gap: 10px;
}

.eyebrow {
  margin: 0;
  color: #d6a94a;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.05;
  letter-spacing: 0;
}

.visitor-count {
  width: fit-content;
  margin: 0;
  border: 1px solid rgb(230 207 134 / 0.18);
  border-radius: 6px;
  padding: 6px 10px;
  background: rgb(29 32 23 / 0.74);
  color: #f1d892;
  font-size: 0.88rem;
  font-weight: 800;
}

form {
  display: grid;
  gap: 16px;
}

fieldset {
  display: grid;
  gap: 10px;
  min-width: 0;
  margin: 0;
  border: 1px solid rgb(230 207 134 / 0.18);
  border-radius: 8px;
  padding: 12px;
}

legend {
  padding: 0 6px;
  color: #d6a94a;
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
}

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

output {
  min-width: 88px;
  border: 1px solid rgb(230 207 134 / 0.18);
  border-radius: 6px;
  padding: 8px 10px;
  background: #1d2017;
  color: #fff7df;
  text-align: center;
  font-weight: 800;
}

label {
  color: #e6d7ac;
  font-size: 0.92rem;
}

input:not([type="range"]),
textarea {
  min-height: 48px;
  border: 1px solid rgb(230 207 134 / 0.24);
  border-radius: 6px;
  padding: 0 14px;
  background: #26291d;
  color: #fff7df;
  outline: none;
}

textarea {
  min-height: 232px;
  resize: vertical;
  padding-block: 12px;
  line-height: 1.45;
}

input[type="range"] {
  width: 100%;
  accent-color: #d6a94a;
}

input:focus,
textarea:focus {
  border-color: #d6a94a;
  box-shadow: 0 0 0 3px rgb(214 169 74 / 0.18);
}

button {
  min-height: 50px;
  border-radius: 6px;
  background: #c84f34;
  color: #fff1da;
  font-weight: 800;
}

button:hover {
  background: #dd6245;
}

.arena-shell {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  min-height: 100vh;
  overflow: hidden;
  padding: clamp(16px, 3vw, 36px);
}

.scoreboard {
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: rgba(0, 0, 0, 0.5);
  border-radius: 8px;
  min-height: 40px;
  pointer-events: none;
  z-index: 10;
}

.score-side {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  width: 48%;
}

.score-side.right {
  justify-content: flex-end;
}

.team-score {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: bold;
  color: #fff;
  text-shadow: 1px 1px 2px #000;
  display: flex;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
}

.victory-banner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0, 0, 0, 0.85);
  padding: 1.5rem 3rem;
  border: 2px solid #d6a94a;
  border-radius: 12px;
  color: #fff7df;
  font-size: 2rem;
  font-weight: 900;
  text-align: center;
  z-index: 100;
  box-shadow: 0 0 30px rgba(214, 169, 74, 0.4);
  backdrop-filter: blur(4px);
  animation: banner-in 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes banner-in {
  from { transform: translate(-50%, -60%) scale(0.8); opacity: 0; }
  to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

#game {
  width: min(100%, calc(100vh - 72px), 1080px);
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid rgb(245 219 136 / 0.22);
  border-radius: 8px;
  background: #242617;
  box-shadow:
    0 24px 80px rgb(0 0 0 / 0.45),
    inset 0 0 0 1px rgb(255 244 205 / 0.06);
}

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

.match-status {
  position: absolute;
  top: clamp(24px, 4vw, 48px);
  left: 50%;
  min-width: min(78vw, 340px);
  transform: translateX(-50%);
  border: 1px solid rgb(252 224 147 / 0.22);
  border-radius: 8px;
  padding: 12px 16px;
  background: rgb(18 19 13 / 0.82);
  color: #f8e8b5;
  text-align: center;
  font-weight: 800;
  backdrop-filter: blur(8px);
  pointer-events: none;
}

@media (max-width: 820px) {
  #app {
    grid-template-columns: 1fr;
  }

  .fighter-entry {
    align-content: start;
    gap: 18px;
    padding-bottom: 18px;
    border-right: 0;
    border-bottom: 1px solid rgb(230 207 134 / 0.14);
  }

  .arena-shell {
    align-content: start;
    min-height: auto;
  }

  #game {
    width: min(100%, calc(100svh - 360px));
    min-width: min(100%, 320px);
  }

  .match-status {
    top: 28px;
  }
}