:root {
  color-scheme: dark;
  --r: #ff3b5c;
  --g: #2be88a;
  --b: #3b9cff;
  --ink: #eef1ff;
  --dim: #8a90b8;
  --panel: rgba(14, 16, 30, 0.72);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; background: #05060e; }

#game {
  position: relative; width: 100vw; height: 100vh; overflow: hidden;
  background: radial-gradient(ellipse at 50% 40%, #0c1024 0%, #05060e 70%, #03030a 100%);
}
canvas { display: block; width: 100%; height: 100%; touch-action: none; }

/* ---------------- HUD ---------------- */
#hud {
  position: absolute; inset: 0; pointer-events: none;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 22px 26px; z-index: 4;
}
.hud-top { display: flex; justify-content: space-between; align-items: flex-start; }
.hud-block { min-width: 120px; }
.hud-block.center { text-align: center; }
.hud-block.right { text-align: right; }
.hud-label { font-size: 11px; letter-spacing: 0.28em; color: var(--dim); font-weight: 700; }
.hud-value {
  font-size: 32px; font-weight: 800; letter-spacing: 0.02em; line-height: 1.05;
  color: var(--ink); text-shadow: 0 0 18px rgba(120,150,255,0.4);
  font-variant-numeric: tabular-nums;
}
#combo { color: #ffd24a; text-shadow: 0 0 18px rgba(255,200,60,0.5); }
#hud.impossible::before {
  content: "☠ IMPOSSIBLE";
  position: absolute; top: 66px; left: 0; right: 0; text-align: center;
  font-size: 12px; letter-spacing: 0.32em; font-weight: 800; color: #ff5a6e;
  text-shadow: 0 0 14px rgba(255,59,92,0.75); pointer-events: none;
}
.hud-value.bump { animation: bump 0.25s ease; }
@keyframes bump { 0%{transform:scale(1)} 40%{transform:scale(1.35)} 100%{transform:scale(1)} }

.hud-bottom { display: flex; justify-content: space-between; align-items: flex-end; }
.health-wrap { display: flex; align-items: center; gap: 10px; }
.health-icon { color: var(--r); font-size: 20px; text-shadow: 0 0 12px var(--r); }
.health-bar {
  width: 260px; max-width: 40vw; height: 14px; border-radius: 8px;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.12);
  overflow: hidden;
}
.health-bar > i {
  display: block; height: 100%; width: 100%;
  background: linear-gradient(90deg, #ff5a6e, #ff9a5a);
  box-shadow: 0 0 16px rgba(255,90,110,0.6); transition: width 0.18s ease;
}

.color-wrap { display: flex; gap: 14px; align-items: center; }
.color-dot {
  width: 26px; height: 26px; border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.18); opacity: 0.4;
  transition: transform 0.15s ease, opacity 0.15s ease, box-shadow 0.15s ease;
}
.color-dot[data-c="0"] { background: var(--r); }
.color-dot[data-c="1"] { background: var(--g); }
.color-dot[data-c="2"] { background: var(--b); }
.color-dot.active { opacity: 1; transform: scale(1.45); }
.color-dot[data-c="0"].active { box-shadow: 0 0 22px var(--r); }
.color-dot[data-c="1"].active { box-shadow: 0 0 22px var(--g); }
.color-dot[data-c="2"].active { box-shadow: 0 0 22px var(--b); }

.corner-btn {
  position: absolute; top: 20px; z-index: 6;
  width: 40px; height: 40px; border-radius: 10px; cursor: pointer;
  background: var(--panel); border: 1px solid rgba(255,255,255,0.12);
  color: var(--ink); font-size: 17px; pointer-events: auto;
  backdrop-filter: blur(8px); transition: transform 0.1s, background 0.15s;
}
.corner-btn:hover { background: rgba(40,44,70,0.8); }
.corner-btn:active { transform: scale(0.92); }
#muteBtn { right: 26px; }
#menuBtn { right: 74px; width: auto; padding: 0 14px; font-size: 14px; letter-spacing: 0.06em; font-weight: 700; }

/* ---------------- Banner ---------------- */
.banner {
  position: absolute; top: 38%; left: 0; right: 0; text-align: center; z-index: 5;
  pointer-events: none;
}
.banner span {
  display: inline-block; font-size: 54px; font-weight: 900; letter-spacing: 0.08em;
  color: var(--ink); text-shadow: 0 0 30px rgba(120,160,255,0.7);
}
.banner.show span { animation: bannerPop 1.8s ease forwards; }
@keyframes bannerPop {
  0% { opacity: 0; transform: scale(0.6); letter-spacing: 0.4em; }
  18% { opacity: 1; transform: scale(1); letter-spacing: 0.08em; }
  78% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.1); }
}
.hidden { display: none !important; }

/* ---------------- Overlays / menus ---------------- */
.overlay {
  position: absolute; inset: 0; z-index: 10;
  display: flex; align-items: center; justify-content: center; padding: 24px;
  background: radial-gradient(ellipse at center, rgba(8,10,24,0.78), rgba(3,3,10,0.94));
  backdrop-filter: blur(3px);
}
.overlay.dim { background: rgba(3,4,12,0.7); }
.card {
  width: 100%; max-width: 540px; text-align: center;
  background: var(--panel); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 22px; padding: 40px 38px;
  box-shadow: 0 30px 90px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.06);
}
.card.small { max-width: 380px; }

.logo {
  font-size: 58px; font-weight: 900; letter-spacing: 0.04em; line-height: 0.95;
  background: linear-gradient(100deg, var(--r), #ffd24a 35%, var(--g) 65%, var(--b));
  background-size: 220% auto;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: hueShift 6s linear infinite;
  filter: drop-shadow(0 0 26px rgba(120,140,255,0.35));
}
.logo span { display: block; }
.logo.dead { background: linear-gradient(100deg, var(--r), #b06aff); -webkit-background-clip: text; background-clip: text; animation: none; }
@keyframes hueShift { to { background-position: 220% center; } }

.tag { color: var(--dim); margin: 12px 0 26px; font-size: 15px; letter-spacing: 0.04em; }

.how { text-align: left; margin: 0 auto 28px; max-width: 420px; display: grid; gap: 11px; }
.how-row { font-size: 13.5px; color: var(--ink); display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.how-row b { color: var(--dim); font-weight: 700; min-width: 96px; letter-spacing: 0.1em; font-size: 11px; }
.how-row.rule { display: block; color: var(--dim); line-height: 1.6; padding-top: 8px; border-top: 1px solid rgba(255,255,255,0.08); }
.how-row.rule em { font-style: normal; font-weight: 800; }
.how-row.rule .r { color: var(--g); }
.how-row.rule .b { color: var(--r); }
kbd {
  display: inline-block; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  border-bottom-width: 2px; border-radius: 6px; padding: 1px 8px; font-family: inherit;
  font-size: 12px; color: var(--ink); margin: 0 1px;
}

.play-btn {
  display: inline-block; cursor: pointer; border: none; border-radius: 14px;
  padding: 15px 40px; font-size: 16px; font-weight: 800; letter-spacing: 0.08em;
  color: #07091a; background: linear-gradient(100deg, var(--r), #ffd24a 50%, var(--b));
  background-size: 200% auto; box-shadow: 0 12px 40px rgba(120,140,255,0.35);
  transition: transform 0.1s, background-position 0.4s; font-family: inherit;
}
.play-btn:hover { background-position: right center; }
.play-btn:active { transform: scale(0.96); }

.ghost-btn {
  display: block; width: 100%; margin-top: 12px; cursor: pointer;
  background: transparent; border: 1px solid rgba(255,255,255,0.18); border-radius: 12px;
  color: var(--dim); padding: 11px; font-size: 13px; font-weight: 700; letter-spacing: 0.08em;
  font-family: inherit; transition: color 0.15s, border-color 0.15s;
}
.ghost-btn:hover { color: var(--ink); border-color: rgba(255,255,255,0.4); }

.hint-small { margin-top: 18px; color: var(--dim); font-size: 11.5px; letter-spacing: 0.03em; }

/* mode buttons + versus key hints on title */
.mode-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.play-btn.alt {
  color: #07091a;
  background: linear-gradient(100deg, var(--r), #b06aff 50%, var(--b));
  background-size: 200% auto;
  box-shadow: 0 12px 40px rgba(176,106,255,0.32);
}
.play-btn.ghosted {
  color: var(--ink);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.16);
  box-shadow: none;
}
.play-btn.ghosted:hover { background: rgba(255,255,255,0.13); }
.play-btn.danger {
  color: #fff;
  background: linear-gradient(100deg, #8a0e2a, var(--r) 55%, #ff7a45);
  background-size: 200% auto;
  box-shadow: 0 12px 40px rgba(255,59,92,0.4);
  letter-spacing: 0.12em;
  animation: dangerPulse 1.8s ease-in-out infinite;
}
@keyframes dangerPulse { 0%,100% { box-shadow: 0 12px 40px rgba(255,59,92,0.35); } 50% { box-shadow: 0 12px 52px rgba(255,59,92,0.7); } }

.vs-keys {
  margin: 16px auto 0; max-width: 460px; display: flex; flex-direction: column; gap: 6px;
  font-size: 11.5px; color: var(--dim);
}
.vs-keys span { display: block; }

/* ---------------- Online lobby ---------------- */
.lobby-form { display: grid; gap: 12px; margin: 6px 0 14px; text-align: left; }
.lf-row { display: grid; gap: 5px; }
.lf-row label { font-size: 10.5px; letter-spacing: 0.18em; color: var(--dim); font-weight: 700; }
.lf-row input {
  width: 100%; font-family: inherit; font-size: 15px; letter-spacing: 0.08em;
  color: var(--ink); background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.16); border-radius: 10px; padding: 11px 13px;
  text-transform: uppercase;
}
#lobbyServer { text-transform: none; letter-spacing: 0.02em; font-size: 13px; }
.lf-row input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(180,140,255,0.18); }
.lobby-status {
  font-size: 12.5px; color: var(--accent); min-height: 18px; margin: 0 0 16px;
  letter-spacing: 0.02em;
}

/* ---------------- Settings ---------------- */
.settings-card { max-width: 720px; }
.settings-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px;
  text-align: left; margin: 8px 0 16px;
}
.set-block h3 {
  font-size: 11px; letter-spacing: 0.18em; color: var(--accent); margin: 0 0 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08); padding-bottom: 6px;
}
.set-block h3 small { color: var(--dim); letter-spacing: 0.06em; font-size: 9px; }
.set-field { display: block; font-size: 11px; color: var(--dim); margin: 0 0 12px; letter-spacing: 0.06em; }
.set-field span { color: var(--accent); float: right; }
.set-field input[type=text] {
  width: 100%; margin-top: 5px; font-family: inherit; font-size: 14px; color: var(--ink);
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.16);
  border-radius: 9px; padding: 9px 11px;
}
.set-field input[type=text]:focus { outline: none; border-color: var(--accent); }
.set-field input[type=range] { width: 100%; margin-top: 8px; accent-color: var(--accent); }
.set-toggle { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--ink); cursor: pointer; margin-top: 6px; }
.set-toggle input { width: 16px; height: 16px; accent-color: var(--accent); cursor: pointer; }

.bind-row {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 7px; font-size: 12px; color: var(--dim);
}
.bind {
  min-width: 92px; font-family: inherit; font-size: 12px; font-weight: 700; cursor: pointer;
  color: var(--ink); background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.16);
  border-bottom-width: 2px; border-radius: 7px; padding: 5px 10px; text-transform: uppercase;
  letter-spacing: 0.04em; transition: background 0.12s, border-color 0.12s;
}
.bind:hover { background: rgba(255,255,255,0.13); }
.bind.capturing { background: rgba(180,140,255,0.25); border-color: var(--accent); color: #e9d5ff; }
.settings-note { font-size: 11px; color: var(--dim); margin: 4px 0 18px; line-height: 1.6; }
.settings-note kbd {
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  border-radius: 5px; padding: 0 6px; font-family: inherit; font-size: 11px; color: var(--ink);
}

@media (max-width: 600px) {
  .settings-grid { grid-template-columns: 1fr; }
  .settings-card { max-width: 420px; }
}

/* ---------------- Versus HUD ---------------- */
#vsHud {
  position: absolute; top: 0; left: 0; right: 0; z-index: 4; pointer-events: none;
  display: flex; justify-content: space-between; align-items: flex-start;
  padding: 18px 22px; gap: 14px;
}
.vp {
  width: 280px; max-width: 38vw;
  background: var(--panel); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px; padding: 10px 13px; backdrop-filter: blur(8px);
}
.vp1 { border-top: 3px solid #ff5a78; }
.vp2 { border-top: 3px solid #50c8ff; }
.vp-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 7px; }
.vp-name { font-size: 15px; font-weight: 800; letter-spacing: 0.06em; }
.vp1 .vp-name { color: #ff5a78; }
.vp2 .vp-name { color: #50c8ff; }
.vp-frags { font-size: 11px; color: var(--dim); letter-spacing: 0.1em; }
.vp-frags b { font-size: 18px; color: var(--ink); font-variant-numeric: tabular-nums; }
.vp-bar {
  height: 11px; border-radius: 6px; background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12); overflow: hidden;
}
.vp-bar > i { display: block; height: 100%; width: 100%; transition: width 0.12s ease; }
.vp1 .vp-bar > i { background: linear-gradient(90deg,#ff8a5a,#ff5a78); box-shadow: 0 0 12px rgba(255,90,120,0.6); }
.vp2 .vp-bar > i { background: linear-gradient(90deg,#5ad0ff,#3b9cff); box-shadow: 0 0 12px rgba(80,200,255,0.6); }
.vp-xp { height: 5px; border-radius: 4px; background: rgba(255,255,255,0.06); overflow: hidden; margin-top: 5px; }
.vp-xp > i { display: block; height: 100%; width: 0%; background: linear-gradient(90deg,#ffe169,#ffd24a); transition: width 0.12s ease; }
.vp-foot { display: flex; justify-content: space-between; align-items: center; margin-top: 8px; }
.vp-foot > span:first-child { text-align: left; }
.vp-foot #p2level { order: 2; }
.vp-foot span { font-size: 12px; font-weight: 700; color: var(--ink); letter-spacing: 0.06em; }
.vp-dots { display: flex; gap: 8px; }
.vp-dots .color-dot {
  width: 16px; height: 16px; border-radius: 50%; border: 1.5px solid rgba(255,255,255,0.18);
  opacity: 0.35; transition: transform 0.12s, opacity 0.12s, box-shadow 0.12s;
}
.vp-dots .color-dot[data-c="0"] { background: var(--r); }
.vp-dots .color-dot[data-c="1"] { background: var(--g); }
.vp-dots .color-dot[data-c="2"] { background: var(--b); }
.vp-dots .color-dot.active { opacity: 1; transform: scale(1.35); }
.vp-dots .color-dot[data-c="0"].active { box-shadow: 0 0 14px var(--r); }
.vp-dots .color-dot[data-c="1"].active { box-shadow: 0 0 14px var(--g); }
.vp-dots .color-dot[data-c="2"].active { box-shadow: 0 0 14px var(--b); }
.frag-goal {
  align-self: center; margin-top: 6px; font-size: 11px; letter-spacing: 0.2em;
  color: var(--dim); font-weight: 700; white-space: nowrap;
}

@media (max-width: 640px) {
  .vp { padding: 8px 10px; }
  .vp-name { font-size: 13px; }
  .frag-goal { display: none; }
}

h2 { font-size: 30px; letter-spacing: 0.18em; color: var(--ink); margin-bottom: 22px; }

.result { margin: 8px 0 28px; display: grid; gap: 10px; }
.result-row {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 10px 16px; border-radius: 10px; background: rgba(255,255,255,0.04);
}
.result-row span { color: var(--dim); font-size: 12px; letter-spacing: 0.12em; }
.result-row b { font-size: 22px; color: var(--ink); font-variant-numeric: tabular-nums; }
.result-row.best { background: rgba(255,210,74,0.1); }
.result-row.best b { color: #ffd24a; }

@media (max-width: 560px) {
  .logo { font-size: 44px; }
  .hud-value { font-size: 24px; }
  .card { padding: 30px 22px; }
}