:root { color-scheme: dark; font-family: Inter, ui-sans-serif, system-ui, sans-serif; color: #fbf6e8; background: #1b2417; }
* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: radial-gradient(circle at 20% 10%, rgba(131,166,79,.26), transparent 28rem), radial-gradient(circle at 82% 6%, rgba(211,132,72,.22), transparent 28rem), #1b2417; }
button, input { font: inherit; }
.hidden { display: none !important; }
.shell { width: min(1240px, 100%); margin: 0 auto; padding: clamp(10px, 2.2vw, 24px); }
.topbar, .brand, .top-actions, .scoreboard, .controls, .control-group, .fight-call, .fight-actions { display: flex; align-items: center; }
.topbar { justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.brand { gap: 10px; color: inherit; text-decoration: none; }
.brand img { width: 42px; height: 42px; object-fit: contain; }
.brand span { display: grid; gap: 1px; }
.brand small, .scoreboard span, .control-group span, .panel span, #modeLabel { color: #b8db7a; font-size: .62rem; font-weight: 950; letter-spacing: .12em; }
.brand strong { font-size: clamp(1.05rem, 3vw, 1.55rem); font-style: italic; font-weight: 950; letter-spacing: .04em; }
.top-actions { gap: 8px; }
.icon-button { width: 38px; height: 36px; border: 1px solid #4f603c; border-radius: 8px; color: #fbf6e8; background: #28321f; font-weight: 950; cursor: pointer; }
.icon-button:disabled { opacity: .45; cursor: default; }
.fight-call { justify-content: space-between; gap: 12px; margin-bottom: 12px; padding: 11px 13px; border: 1px solid #56663e; border-radius: 10px; background: rgba(32,42,25,.92); box-shadow: inset 0 1px rgba(255,255,255,.04); }
.fight-call > div:first-child { display: grid; gap: 3px; min-width: 0; }
.fight-call span { color: #b8db7a; font-size: .62rem; font-weight: 950; letter-spacing: .1em; text-transform: uppercase; }
.fight-call strong { overflow: hidden; color: #fbf6e8; font-size: .84rem; text-overflow: ellipsis; white-space: nowrap; }
.fight-actions { gap: 7px; flex: 0 0 auto; }
.secondary-button { display: inline-grid; place-items: center; min-height: 34px; padding: 0 11px; border: 1px solid #5f7047; border-radius: 7px; color: #fbf6e8; background: #2d3824; font-size: .64rem; font-weight: 950; letter-spacing: .07em; text-decoration: none; cursor: pointer; }
.secondary-button:hover, .secondary-button:focus-visible { border-color: #b8db7a; outline: 0; }
.secondary-button:disabled { opacity: .45; cursor: default; }
#roomLink { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }
.battle-card { border: 1px solid #56663e; border-radius: 12px; overflow: hidden; background: rgba(29,35,22,.9); box-shadow: 0 22px 70px rgba(0,0,0,.35); }
.scoreboard { justify-content: space-between; gap: 10px; padding: 12px clamp(10px, 3vw, 24px); background: #26301f; border-bottom: 1px solid #455335; }
.scoreboard div { display: grid; gap: 2px; text-align: center; min-width: 70px; }
.scoreboard strong { font-size: clamp(1rem, 3vw, 1.45rem); font-variant-numeric: tabular-nums; }
#turnLabel.cyan { color: #65f1df; }
#turnLabel.coral { color: #ff7983; }
.arena-wrap { position: relative; width: 100%; aspect-ratio: 21 / 9; overflow: hidden; background: #453523; }
canvas { display: block; width: 100%; height: 100%; touch-action: none; user-select: none; }
.banner { position: absolute; left: 50%; top: 12%; transform: translate(-50%, -8px); opacity: 0; z-index: 3; color: #fff; font-size: clamp(.85rem, 2.5vw, 1.4rem); font-weight: 950; font-style: italic; text-align: center; text-shadow: 0 3px 14px #03080c; pointer-events: none; transition: opacity .16s, transform .16s; }
.banner.show { opacity: 1; transform: translate(-50%, 0); }
.panel { position: absolute; z-index: 4; left: 50%; top: 50%; width: min(520px, calc(100% - 30px)); max-height: calc(100% - 24px); overflow: auto; transform: translate(-50%, -50%); padding: clamp(14px, 2.5vw, 24px); border: 1px solid #7c8d58; border-radius: 10px; background: rgba(31,38,24,.94); text-align: center; box-shadow: 0 20px 70px rgba(0,0,0,.45); }
.panel h1, .panel h2 { margin: 7px 0; font-size: clamp(1.7rem, 4.6vw, 3rem); line-height: 1.05; }
.panel p { margin: 8px auto 18px; max-width: 36rem; color: #ded3b4; font-size: .9rem; }
.keys { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin: 12px 0 16px; }
.keys b { display: block; padding: 9px 6px 3px; border: 1px solid #56663e; border-radius: 7px 7px 0 0; background: #2c3824; font-size: .85rem; }
.keys em { display: block; padding: 3px 6px 8px; border: 1px solid #56663e; border-top: 0; border-radius: 0 0 7px 7px; color: #b8ad91; font-size: .68rem; font-style: normal; text-transform: uppercase; }
.primary-button, .fire-button, .control-group button { border: 0; border-radius: 8px; color: #172011; background: #b8db7a; font-weight: 950; cursor: pointer; }
.primary-button { min-width: 170px; padding: 12px 18px; }
.controls { justify-content: space-between; gap: 12px; padding: 12px; border-top: 1px solid #455335; background: #26301f; }
.control-group { gap: 7px; min-width: 0; }
.control-group button { width: 44px; height: 40px; }
.control-group.power { flex: 1; }
#powerSlider { width: 100%; accent-color: #b8db7a; }
.fire-button { min-height: 44px; padding: 0 18px; background: linear-gradient(135deg, #b8db7a, #f3d27b); }
button:disabled, input:disabled { opacity: .45; cursor: default; }
@media (max-width: 680px) {
  .topbar { align-items: flex-start; }
  .fight-call { align-items: stretch; flex-direction: column; }
  .fight-actions { flex-wrap: wrap; }
  .secondary-button { flex: 1; }
  .scoreboard { gap: 4px; padding: 8px; }
  .scoreboard div { min-width: 45px; }
  .scoreboard span { font-size: .48rem; }
  .controls { flex-wrap: wrap; }
  .control-group.power { order: -1; flex: 1 0 100%; }
  .fire-button { flex: 1 0 100%; }
  .panel p { margin-bottom: 10px; }
  .keys { grid-template-columns: 1fr; gap: 4px; margin: 8px 0 12px; }
  .keys b { padding: 6px 6px 2px; }
  .keys em { padding: 2px 6px 5px; }
}