:root {
  --bg: #0f1117;
  --bg-elev: #171a23;
  --bg-elev-2: #1f2330;
  --border: #2a2f3d;
  --text: #e6e8ee;
  --text-dim: #9aa1b1;
  --accent: #5b8cff;
  --accent-2: #7c5cff;
  --green: #34d399;
  --red: #f87171;
  --amber: #fbbf24;
  --team-a: #4f9dff;
  --team-b: #ff7a59;
  --radius: 12px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(900px 500px at 50% -240px, rgba(91,140,255,0.10), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

#app { min-height: 100vh; display: flex; flex-direction: column; }

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--border);
  background: rgba(23,26,35,0.86);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { font-weight: 800; letter-spacing: 0.4px; font-size: 20px; cursor: pointer; }
.brand .dot { color: var(--accent); }
.me { font-size: 13px; color: var(--text-dim); text-align: right; line-height: 1.5; }
.me b { color: var(--text); }
.me .pts { color: var(--amber); font-variant-numeric: tabular-nums; }
.uname { cursor: pointer; }
.uname:hover { color: var(--accent); text-decoration: underline; }

/* ---------- return-to-room bar ---------- */
.returnbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 22px; cursor: pointer;
  background: rgba(91,140,255,0.12);
  border-bottom: 1px solid var(--accent);
  font-size: 14px;
}
.returnbar .code { color: var(--accent); font-family: ui-monospace, Menlo, monospace; }
.returnbar .link { color: var(--accent); font-weight: 700; }

/* ---------- screen container ---------- */
.screen { padding: 24px 22px 56px; flex: 1; width: 100%; max-width: 760px; margin: 0 auto; }
.screen.wide { max-width: 1120px; }
.screen.auth { max-width: 460px; }

h1 { font-size: 24px; margin: 0 0 4px; font-weight: 800; }
h2 { font-size: 13px; margin: 24px 0 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.7px; font-weight: 700; }
.sub { color: var(--text-dim); font-size: 14px; margin: 0 0 22px; line-height: 1.5; }
.hero { margin-bottom: 8px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: var(--radius-sm);
  background: var(--accent); color: #fff; font-size: 15px; font-weight: 700;
  padding: 12px 18px; cursor: pointer; transition: filter 0.15s, opacity 0.15s, transform 0.05s;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.secondary { background: var(--bg-elev-2); color: var(--text); border: 1px solid var(--border); }
.btn.danger { background: var(--red); color: #3a0d0d; }
.btn.success { background: var(--green); color: #06281d; }
.btn.block { width: 100%; }
.btn.lg { padding: 16px; font-size: 16px; }
.home-buttons { display: grid; gap: 14px; margin-top: 26px; max-width: 460px; }
.home-buttons .muted { margin: -4px 0 4px; }

/* ---------- inputs ---------- */
input, select {
  width: 100%;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 12px 14px;
  font-size: 15px;
  outline: none;
}
input:focus, select:focus { border-color: var(--accent); }
label { display: block; font-size: 13px; color: var(--text-dim); margin: 14px 0 6px; }

/* ---------- cards & grids ---------- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
}
.card-h { font-size: 12px; text-transform: uppercase; letter-spacing: 0.6px; color: var(--text-dim); font-weight: 700; margin-bottom: 12px; }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 820px) {
  .grid-2 { grid-template-columns: 1fr 1fr; align-items: start; }
}

/* identity / key-value rows */
.ident { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.ident-name { font-weight: 700; font-size: 20px; }
.kv { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--border); }
.kv:last-child { border-bottom: none; }
.kv .k { color: var(--text-dim); font-size: 13px; }
.kv .v { font-weight: 600; }

/* name history */
.namelist { display: grid; gap: 6px; }
.nameitem { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 10px; background: var(--bg-elev-2); border: 1px solid var(--border); border-radius: var(--radius-sm); font-size: 14px; }

/* ---------- rooms list ---------- */
.room-list { display: grid; gap: 10px; }
@media (min-width: 760px) { .room-list { grid-template-columns: 1fr 1fr; } }
.room-item {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; cursor: pointer; transition: border-color 0.15s, transform 0.05s; gap: 12px;
}
.room-item:hover { border-color: var(--accent); }
.room-item:active { transform: scale(0.997); }
.room-item .info .title { font-weight: 600; font-size: 16px; }
.room-item .info .meta { font-size: 13px; color: var(--text-dim); margin-top: 3px; }
.room-item .info .code { font-family: ui-monospace, Menlo, monospace; color: var(--accent); }

.counts { display: flex; gap: 8px; flex-wrap: wrap; }
.pill {
  font-size: 12px; font-weight: 600; padding: 5px 10px; border-radius: 999px;
  background: var(--bg-elev-2); border: 1px solid var(--border);
  white-space: nowrap; font-variant-numeric: tabular-nums;
}
.pill.full { color: var(--amber); border-color: var(--amber); }
.pill.green { color: var(--green); }
.pill.A { color: var(--team-a); border-color: var(--team-a); }
.pill.B { color: var(--team-b); border-color: var(--team-b); }

.status-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; padding: 3px 8px; border-radius: 6px; background: var(--bg-elev-2); color: var(--text-dim); }
.status-tag.open { color: var(--green); }
.status-tag.teams_set { color: var(--amber); }
.status-tag.closed { color: var(--red); }

/* ---------- room screen ---------- */
.room-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.room-head .code { font-family: ui-monospace, Menlo, monospace; color: var(--accent); font-size: 14px; }
.room-grid { display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width: 980px) {
  .room-grid { grid-template-columns: minmax(0,1fr) 380px; align-items: start; }
  .room-side { position: sticky; top: 84px; }
}

.members { display: grid; gap: 8px; }
.member {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-left-width: 4px; border-left-color: var(--border);
  border-radius: var(--radius-sm); padding: 10px 12px;
}
.member.team-A { border-left-color: var(--team-a); }
.member.team-B { border-left-color: var(--team-b); }
.member .who { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.member .name { font-weight: 600; }
.member .pts { color: var(--amber); font-size: 13px; font-variant-numeric: tabular-nums; }
.member-right { display: flex; align-items: center; gap: 8px; }
.kick {
  display: inline-flex; align-items: center; justify-content: center;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--bg-elev-2); border: 1px solid var(--border);
  color: var(--red); cursor: pointer; font-size: 12px; font-weight: 700;
}
.kick:hover { filter: brightness(1.25); border-color: var(--red); }

.badge { font-size: 10px; font-weight: 700; padding: 2px 6px; border-radius: 5px; text-transform: uppercase; }
.badge.host { background: var(--accent-2); color: white; }
.badge.you { background: var(--bg-elev-2); color: var(--text-dim); border: 1px solid var(--border); }
.badge.ok { background: rgba(52,211,153,0.16); color: var(--green); }
.badge.A { background: var(--team-a); color: #06203f; }
.badge.B { background: var(--team-b); color: #3d1505; }
.check { color: var(--green); font-size: 13px; }
.delta-up { color: var(--green); font-weight: 700; }
.delta-down { color: var(--red); font-weight: 700; }
.delta-zero { color: var(--text-dim); font-weight: 700; }
.team-totals { display: flex; gap: 10px; margin: 6px 0 14px; flex-wrap: wrap; }
.team-totals .pill.A { color: var(--team-a); border-color: var(--team-a); }
.team-totals .pill.B { color: var(--team-b); border-color: var(--team-b); }

/* ---------- chat ---------- */
.chat { display: flex; flex-direction: column; height: 320px; }
@media (min-width: 980px) { .chat { height: 60vh; min-height: 340px; } }
.chat-log {
  flex: 1; overflow-y: auto; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px; display: flex; flex-direction: column; gap: 8px;
}
/* WhatsApp-style chat bubbles */
.bubble {
  max-width: 82%; align-self: flex-start;
  background: var(--bg-elev-2); border: 1px solid var(--border);
  border-radius: 12px; border-bottom-left-radius: 3px;
  padding: 7px 10px 5px;
}
.bubble.mine {
  align-self: flex-end;
  background: rgba(91, 140, 255, 0.16); border-color: rgba(91, 140, 255, 0.5);
  border-bottom-right-radius: 3px; border-bottom-left-radius: 12px;
}
.bubble .bname { display: block; font-size: 12px; font-weight: 700; color: var(--accent); margin-bottom: 2px; cursor: pointer; }
.bubble.mine .bname { color: var(--green); }
.bubble .btext { font-size: 14px; line-height: 1.35; word-break: break-word; white-space: pre-wrap; }
.bubble .btime { display: block; text-align: right; font-size: 10px; color: var(--text-dim); margin-top: 3px; }
/* system / event lines */
.sysmsg { align-self: center; text-align: center; font-size: 12px; color: var(--text-dim); padding: 1px 8px; }
.sysmsg .btime { font-size: 10px; opacity: 0.75; margin-left: 4px; }
.chat-input { display: flex; gap: 8px; margin-top: 8px; }
.chat-input input { flex: 1; }
/* clickable match rows in history / profile */
.mrow { cursor: pointer; transition: border-color 0.12s ease; }
.mrow:hover { border-color: var(--accent); }

/* ---------- misc ---------- */
.row { display: flex; gap: 8px; }
.row > * { flex: 1; }
.stack { display: grid; gap: 10px; }
.banner { padding: 12px 14px; border-radius: var(--radius-sm); font-size: 14px; margin-bottom: 14px; }
.banner.info { background: rgba(91,140,255,0.12); border: 1px solid var(--accent); }
.banner.warn { background: rgba(251,191,36,0.12); border: 1px solid var(--amber); color: var(--amber); }
.banner.error { background: rgba(248,113,113,0.12); border: 1px solid var(--red); color: var(--red); }
.banner.success { background: rgba(52,211,153,0.12); border: 1px solid var(--green); }
.empty { color: var(--text-dim); text-align: center; padding: 30px 0; font-size: 14px; }
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--bg-elev-2); border: 1px solid var(--border);
  padding: 12px 18px; border-radius: var(--radius-sm); font-size: 14px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.45); z-index: 100; max-width: 90%;
}
.toast.error { border-color: var(--red); color: var(--red); }
.link { color: var(--accent); cursor: pointer; font-size: 14px; }
.spacer { height: 14px; }
.hr { height: 1px; background: var(--border); margin: 20px 0; border: none; }
.muted { color: var(--text-dim); font-size: 13px; }