:root {
  --bg: #161512;
  --panel: #262421;
  --panel-2: #302e2b;
  --text: #e6e3df;
  --muted: #9b968f;
  --accent: #629924;
  --accent-2: #3692e7;
  --danger: #cc3333;
  --light-sq: #f0d9b5;
  --dark-sq: #b58863;
  --radius: 8px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; }
a { color: var(--accent-2); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { margin: 0 0 .6rem; font-weight: 600; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.2rem; }

.topbar {
  display: flex; align-items: center; gap: 1.5rem;
  padding: .7rem 1.2rem; background: var(--panel); border-bottom: 1px solid #000;
  position: sticky; top: 0; z-index: 10;
}
.brand { font-size: 1.3rem; font-weight: 700; color: var(--text); }
.home-link { color: var(--muted); font-size: .9rem; white-space: nowrap; }
.topbar nav { display: flex; gap: 1rem; flex: 1; }
.topbar nav a { color: var(--muted); }
.topbar nav a:hover { color: var(--text); text-decoration: none; }
.account { display: flex; gap: .6rem; align-items: center; }

.view { max-width: 1180px; margin: 0 auto; padding: 1.2rem; }
.grid { display: grid; gap: 1rem; }
.cols-2 { grid-template-columns: 1fr 1fr; }
.panel { background: var(--panel); border-radius: var(--radius); padding: 1rem; }
.muted { color: var(--muted); }
.row { display: flex; gap: .6rem; align-items: center; flex-wrap: wrap; }
.spacer { flex: 1; }

button, .btn {
  background: var(--panel-2); color: var(--text); border: 1px solid #45423e;
  border-radius: 6px; padding: .5rem .9rem; font: inherit; cursor: pointer;
}
button:hover { filter: brightness(1.15); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
button.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
button:disabled { opacity: .5; cursor: default; filter: none; }

input, select, textarea {
  background: #1c1a18; color: var(--text); border: 1px solid #45423e;
  border-radius: 6px; padding: .5rem .6rem; font: inherit; width: 100%;
}
label { display: block; margin: .6rem 0 .25rem; color: var(--muted); font-size: .9rem; }
form .actions { margin-top: 1rem; display: flex; gap: .6rem; }
.auth-card { max-width: 380px; margin: 2rem auto; }
.tabs { display: flex; gap: .4rem; margin-bottom: 1rem; flex-wrap: wrap; }
.tabs button.active { background: var(--accent-2); border-color: var(--accent-2); color: #fff; }

table { width: 100%; border-collapse: collapse; }
th, td { padding: .45rem .5rem; text-align: left; border-bottom: 1px solid #3a3733; }
th { color: var(--muted); font-weight: 500; font-size: .85rem; }
tr.me td { background: rgba(98, 153, 36, .15); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.result-cell { display: inline-block; min-width: 1.4rem; text-align: center; border-radius: 3px; padding: 0 .2rem; }
.res-win { background: #3d6b16; }
.res-draw { background: #5b5853; }
.res-loss { background: #7a2626; }
.res-bye { background: #2a4f75; }

.pools { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: .6rem; }
.pool {
  background: var(--panel-2); border-radius: var(--radius); padding: 1rem .5rem; text-align: center;
  cursor: pointer; border: 1px solid transparent; user-select: none;
}
.pool:hover { border-color: var(--accent); }
.pool .tc { font-size: 1.5rem; font-weight: 600; }
.pool.searching { border-color: var(--accent-2); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .6; } }

.tournament-card { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: .7rem 0; border-bottom: 1px solid #3a3733; }
.tournament-card:last-child { border-bottom: 0; }
.badge { font-size: .75rem; padding: .1rem .45rem; border-radius: 10px; background: var(--panel-2); color: var(--muted); }
.badge.live { background: var(--danger); color: #fff; }

/* game */
.game-layout { display: grid; grid-template-columns: minmax(0, min(680px, calc(100vh - 170px))) minmax(260px, 1fr); gap: 1rem; align-items: start; }
.player-bar { display: flex; justify-content: space-between; align-items: center; padding: .4rem 0; }
.player-bar .name { font-weight: 600; }
.clock {
  font-variant-numeric: tabular-nums; font-size: 1.6rem; font-weight: 600;
  background: var(--panel-2); border-radius: 6px; padding: .2rem .8rem; min-width: 7rem; text-align: right;
}
.clock.running { background: var(--accent); color: #fff; }
.clock.low { background: var(--danger); color: #fff; }

.board-wrap {
  position: relative; width: 100%; aspect-ratio: 1; user-select: none; -webkit-user-select: none;
  touch-action: none; border-radius: 3px; overflow: hidden; box-shadow: 0 6px 22px rgba(0,0,0,.55);
}
.board { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(8, 1fr); }
.sq { position: relative; }
.sq.light { background-color: var(--light-sq); }
.sq.dark { background-color: var(--dark-sq); }
.sq::before, .sq::after { content: ""; position: absolute; inset: 0; pointer-events: none; }
.sq.last::before { background: rgba(155, 199, 0, .41); }
.sq.premove::before { background: rgba(20, 30, 85, .5); }
.sq.selected::before { background: rgba(20, 85, 30, .5); }
.sq.drag-origin::before { background: rgba(20, 85, 30, .3); }
.sq.hover::before { background: rgba(20, 85, 30, .3); }
.sq.premove-dest.hover::before { background: rgba(20, 30, 85, .35); }
.sq.check { background-image: radial-gradient(ellipse at center, #ff0000 0%, #e70000 25%, rgba(169,0,0,0) 89%, rgba(158,0,0,0) 100%); }
.sq.dest::after { background: radial-gradient(rgba(20, 85, 30, .5) 19%, rgba(0,0,0,0) 20%); }
.sq.capture::after { background: radial-gradient(transparent 0%, transparent 79%, rgba(20, 85, 30, .3) 80%); }
.sq.premove-dest.dest::after { background: radial-gradient(rgba(20, 30, 85, .5) 19%, rgba(0,0,0,0) 20%); }
.sq.premove-dest.capture::after { background: radial-gradient(transparent 0%, transparent 79%, rgba(20, 30, 85, .3) 80%); }
.sq.hover::after { background: none; }
.coord { position: absolute; font-size: clamp(.55rem, 1.6vw, .75rem); font-weight: 700; pointer-events: none; z-index: 1; }
.coord.file { right: 4%; bottom: 1%; }
.coord.rank { left: 4%; top: 2%; }
.sq.light .coord { color: var(--dark-sq); }
.sq.dark .coord { color: var(--light-sq); }
.pieces { position: absolute; inset: 0; pointer-events: none; }
.piece {
  position: absolute; top: 0; left: 0; width: 12.5%; height: 12.5%;
  background-size: cover; background-repeat: no-repeat; will-change: transform; z-index: 2;
}
.piece.animating { z-index: 4; }
.piece.dragging { z-index: 10; filter: drop-shadow(0 6px 6px rgba(0,0,0,.4)); }
.piece.fading { z-index: 1; animation: fade-out .18s ease forwards; }
@keyframes fade-out { to { opacity: 0; } }
.board-wrap:has(.piece.movable) { cursor: pointer; }
.shapes { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 6; }
.promo { position: absolute; inset: 0; background: rgba(250, 250, 250, .55); z-index: 20; }
.promo-piece {
  position: absolute; width: 12.5%; height: 12.5%; padding: 0; border: 0; border-radius: 50%;
  background-color: #b0b0b0; background-size: 80%; background-position: center; background-repeat: no-repeat;
  box-shadow: inset 0 0 25px 3px #808080; transition: all .15s; cursor: pointer;
}
.promo-piece:hover { border-radius: 0; background-color: #d64f00; background-size: 100%; box-shadow: inset 0 0 48px 8px #a43e00; }
.material { display: inline-flex; align-items: center; margin-left: .4rem; vertical-align: middle; }
.material img { width: 1.1rem; height: 1.1rem; margin-right: -.35rem; opacity: .85; }
.material .score { margin-left: .55rem; color: var(--muted); font-size: .85rem; }

.moves { display: grid; grid-template-columns: 2.5rem 1fr 1fr; max-height: 340px; overflow-y: auto; font-variant-numeric: tabular-nums; }
.moves div { padding: .2rem .4rem; }
.moves .n { color: var(--muted); background: var(--panel-2); }
.moves .ply.current { background: var(--accent-2); color: #fff; border-radius: 3px; }
.status { font-size: 1.05rem; margin: .6rem 0; min-height: 1.4rem; }
.banner { background: var(--panel-2); border-radius: var(--radius); padding: .8rem; text-align: center; font-weight: 600; margin: .6rem 0; }

.toast {
  position: fixed; bottom: 1.2rem; left: 50%; transform: translateX(-50%); background: var(--panel-2);
  border: 1px solid #45423e; border-radius: var(--radius); padding: .7rem 1.1rem; z-index: 50; box-shadow: 0 4px 16px rgba(0,0,0,.5);
}
.toast.error { border-color: var(--danger); }

@media (max-width: 860px) {
  .cols-2, .game-layout { grid-template-columns: 1fr; }
  .topbar { gap: .8rem; flex-wrap: wrap; }
  .hide-sm { display: none; }
}