:root {
  --bg: #0d1018;
  --bg2: #161b28;
  --panel: #1b2230;
  --panel2: #232c3d;
  --line: #2e3950;
  --text: #e7ecf5;
  --muted: #8a97ad;
  --accent: #3a86ff;
  --accent2: #5dc8e1;
  --good: #2ecc71;
  --bad: #e6394a;
  --warn: #f4c20d;
  --radius: 12px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: radial-gradient(1200px 700px at 50% -10%, #1a2233 0%, var(--bg) 60%);
  color: var(--text);
  overflow: hidden;
  -webkit-user-select: none;
  user-select: none;
}

/* ---------------- Canvas ---------------- */
#game-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  background: #05070c;
  cursor: crosshair;
}

/* ---------------- Screens / panels ---------------- */
.screen {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  padding: 24px;
}
.hidden { display: none !important; }

.panel {
  width: min(440px, 100%);
  background: linear-gradient(180deg, var(--panel) 0%, var(--bg2) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 24px 60px rgba(0,0,0,.55);
}

.title {
  margin: 0 0 6px;
  font-size: 34px;
  letter-spacing: 3px;
  font-weight: 800;
}
.title .accent { color: var(--accent); }
.subtitle { color: var(--muted); margin: 0 0 22px; font-size: 14px; line-height: 1.5; }

.field { display: block; margin-bottom: 16px; }
.field > span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 1px; }

input[type="text"] {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 15px;
  outline: none;
}
input[type="text"]:focus { border-color: var(--accent); }
#code-input { text-transform: uppercase; letter-spacing: 2px; font-weight: 700; }

.row { display: flex; gap: 10px; margin-top: 6px; }
.row.center { justify-content: center; }
.join-row input { flex: 1; }

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .05s ease, background .15s ease, border-color .15s ease, opacity .15s;
  flex: 1;
}
.btn:hover { background: #2b3650; }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #2f73e8; }
.btn.ghost { background: transparent; flex: 0 0 auto; }
.btn.on { background: var(--good); border-color: var(--good); color: #04210f; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.divider { display: flex; align-items: center; text-align: center; color: var(--muted); margin: 18px 0; font-size: 12px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.divider span { padding: 0 12px; }

.conn { margin-top: 18px; font-size: 12px; color: var(--muted); text-align: center; }
.conn.ok { color: var(--good); }
.conn.err { color: var(--bad); }

.muted { color: var(--muted); }
.small { font-size: 12px; text-transform: uppercase; letter-spacing: 1px; }
.center { text-align: center; }

/* ---------------- Lobby ---------------- */
.lobby-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 18px; }
.room-code {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 6px;
  cursor: pointer;
  color: var(--accent2);
}
.room-code:hover { color: #fff; }

.player-list { list-style: none; margin: 8px 0 16px; padding: 0; }
.player-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  margin-bottom: 8px;
}
.slot-dot { width: 14px; height: 14px; border-radius: 50%; flex: 0 0 auto; box-shadow: 0 0 8px currentColor; }
.player-name { flex: 1; font-weight: 600; }
.player-tag { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.player-ready { color: var(--good); font-weight: 700; }
.player-notready { color: var(--muted); }

.lobby-actions { margin-top: 4px; }
#lobby-hint { margin-top: 10px; }

/* ---------------- HUD ---------------- */
#hud {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
}
#hud-top {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 14px 18px;
  gap: 16px;
}
#hud-scores { display: flex; flex-direction: column; gap: 6px; }
.score-row {
  display: flex; align-items: center; gap: 8px;
  background: rgba(10,14,22,.55);
  border: 1px solid var(--line);
  padding: 4px 10px; border-radius: 8px;
  font-weight: 700; font-size: 14px;
  backdrop-filter: blur(4px);
}
.score-row.dead { opacity: .45; }
.score-row .sc-name { min-width: 70px; }
.score-row .sc-val { color: #fff; }

#hud-center { text-align: center; background: rgba(10,14,22,.55); border: 1px solid var(--line); border-radius: 8px; padding: 6px 18px; backdrop-filter: blur(4px); }
#hud-round { font-weight: 800; font-size: 16px; letter-spacing: 1px; }
#hud-weapon { color: var(--accent2); font-size: 13px; font-weight: 600; }

#hud-right { text-align: right; display: flex; flex-direction: column; gap: 6px; }
#hud-alive, #hud-rtt {
  background: rgba(10,14,22,.55);
  border: 1px solid var(--line);
  padding: 4px 10px; border-radius: 8px;
  font-size: 13px; font-weight: 600;
  backdrop-filter: blur(4px);
}

/* ---------------- Banner (countdown / round result) ---------------- */
#banner {
  position: absolute;
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  background: rgba(10,14,22,.7);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 40px;
  backdrop-filter: blur(6px);
}
#banner .b-title { font-size: 26px; font-weight: 800; letter-spacing: 1px; }
#banner .b-sub { font-size: 15px; color: var(--muted); margin-top: 6px; }
#banner .b-count { font-size: 48px; font-weight: 800; color: var(--accent2); margin-top: 4px; }

/* ---------------- Scoreboard ---------------- */
.winner { text-align: center; font-size: 20px; font-weight: 700; margin: 6px 0 18px; }
.ranking { list-style: none; counter-reset: rank; padding: 0; margin: 0 0 22px; }
.ranking li {
  counter-increment: rank;
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; margin-bottom: 8px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
  font-weight: 700;
}
.ranking li::before { content: counter(rank); color: var(--muted); width: 22px; }
.ranking li.first { border-color: var(--warn); box-shadow: 0 0 16px rgba(244,194,13,.25); }
.ranking .r-score { margin-left: auto; color: #fff; }

/* ---------------- Toasts ---------------- */
#toast-stack {
  position: fixed; top: 16px; left: 50%; transform: translateX(-50%);
  z-index: 50; display: flex; flex-direction: column; gap: 8px; align-items: center;
  pointer-events: none;
}
.toast {
  background: rgba(20,26,40,.95);
  border: 1px solid var(--line);
  border-left: 4px solid var(--accent);
  padding: 10px 16px; border-radius: 8px;
  font-size: 14px; box-shadow: 0 8px 24px rgba(0,0,0,.5);
  animation: toastIn .2s ease;
}
.toast.error { border-left-color: var(--bad); }
@keyframes toastIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }

/* ---------------- Menu header (title + settings gear) ---------------- */
.menu-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 6px; }
.menu-header .title { margin: 0; }

/* ---------------- Settings modal ---------------- */
.modal-overlay {
  position: fixed; inset: 0; z-index: 30;
  display: flex; align-items: center; justify-content: center;
  background: rgba(5,7,12,.65);
  backdrop-filter: blur(4px);
  padding: 24px;
}
.modal-panel { width: min(400px, 100%); }
.modal-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 4px; }

.icon-btn {
  flex: 0 0 auto; width: 38px; height: 38px; padding: 0;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; border-radius: 10px;
}

.keybind-list { display: flex; flex-direction: column; gap: 8px; }
.keybind-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 10px;
}
.keybind-label { flex: 1; font-weight: 600; font-size: 14px; }
.keybind-key {
  background: var(--panel2); border: 1px solid var(--line);
  border-radius: 6px; padding: 4px 10px;
  font-size: 13px; font-weight: 700; color: var(--accent2);
  min-width: 60px; text-align: center;
}
.keybind-btn { flex: 0 0 auto; padding: 6px 14px; font-size: 13px; }
.keybind-btn.listening { border-color: var(--accent); color: var(--accent); animation: pulse .7s infinite alternate; }
@keyframes pulse { from { opacity: .7; } to { opacity: 1; } }