:root {
  --bg: #1a2233;
  --panel: #232c40;
  --panel-2: #2b3550;
  --line: #3a4560;
  --text: #e8ecf4;
  --muted: #9aa7c0;
  --accent: #4f8cff;
  --accent-2: #7d5bff;
  --good: #2ecc71;
  --warn: #f39c12;
  --bad: #e74c3c;
  --domino-empty: #f4f4f2;
  --domino-ink: #1b1b1b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at 50% 0%, #263150 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

.view { max-width: 1100px; margin: 0 auto; padding: 16px; }

/* ---------- Panels & forms ---------- */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 6px 20px rgba(0,0,0,.25);
}
.panel.center { max-width: 420px; margin: 8vh auto; text-align: center; }
.panel h1 { margin: 0 0 4px; font-size: 1.9rem; }
.panel h2 { font-size: 1.15rem; margin: 0 0 12px; color: var(--text); }
.subtitle { color: var(--muted); margin-top: 0; }

input, select {
  width: 100%;
  padding: 10px 12px;
  margin: 6px 0;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font-size: 1rem;
}
select { cursor: pointer; }
.create-form label { display: block; text-align: left; color: var(--muted); font-size: .85rem; }

.btn {
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 1rem;
  cursor: pointer;
  transition: transform .05s, filter .15s;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; font-weight: 600; }
.btn.secondary { background: var(--panel-2); color: var(--text); border: 1px solid var(--line); }
.btn.small { padding: 6px 10px; font-size: .85rem; }

.tabs { display: flex; gap: 8px; margin: 16px 0; justify-content: center; }
.tab-btn { background: var(--panel-2); color: var(--muted); border: 1px solid var(--line); padding: 8px 14px; border-radius: 8px; cursor: pointer; }
.tab-btn.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.form-msg { margin-top: 10px; font-size: .9rem; color: var(--warn); min-height: 1.2em; }

/* ---------- Top bar ---------- */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; padding: 8px 0; }
.topbar h1 { font-size: 1.4rem; margin: 0; }
.topbar .game-title { font-size: 1.3rem; }
.user-box { display: flex; align-items: center; gap: 10px; color: var(--muted); }

/* ---------- Lobby ---------- */
.lobby-wrap { display: grid; gap: 16px; }
.game-list { display: flex; flex-direction: column; gap: 8px; min-height: 40px; }
.game-item {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px;
}
.game-item .info { display: flex; flex-direction: column; gap: 2px; }
.game-item .info b { font-size: 1rem; }
.game-item .info span { color: var(--muted); font-size: .8rem; }
.empty-note { color: var(--muted); font-style: italic; }

/* ---------- Game ---------- */
.status-bar { display: flex; justify-content: space-between; align-items: center; padding: 4px 0 8px; color: var(--muted); }
#turn-indicator { font-weight: 700; font-size: 1.05rem; }
#turn-indicator.your { color: var(--good); }
#round-indicator { color: var(--muted); }

#seats-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.seat-chip { background: var(--panel-2); border: 1px solid var(--line); border-radius: 20px; padding: 6px 14px; font-size: .9rem; }
.seat-chip.active { border-color: var(--good); box-shadow: 0 0 0 2px rgba(46,204,113,.3); color: var(--good); }
.seat-chip.you { color: var(--accent); font-weight: 600; }
.seat-chip .count { color: var(--muted); margin-left: 6px; }

.table-container { background: linear-gradient(135deg, #234b3a, #1c3a2e); border: 2px solid #3c6b55; border-radius: 14px; padding: 20px; height: 460px; overflow: hidden; position: relative; }
#board-svg { width: 100%; height: 100%; display: block; cursor: grab; touch-action: none; user-select: none; -webkit-user-select: none; }
#board-svg.dragging { cursor: grabbing; }
#board-controls { position: absolute; top: 12px; right: 12px; z-index: 5; display: flex; gap: 6px; }
.zoom-btn { background: rgba(20,26,40,.88); color: var(--text); border: 1px solid var(--line); border-radius: 8px; width: 34px; height: 30px; cursor: pointer; font-size: 1.05rem; line-height: 1; box-shadow: 0 2px 8px rgba(0,0,0,.35); }
.zoom-btn:hover { background: var(--panel-2); }
.zoom-btn.wide { width: auto; padding: 0 11px; font-size: .8rem; }

/* Domino rendering */
.domino { stroke: #33150f; stroke-width: 2; rx: 6; }
.domino.foot { fill: #ffd9a0; }
.domino.line { fill: #fff3e0; }
.domino.mine { stroke: #4f8cff; stroke-width: 3; }
.pip { fill: var(--domino-ink); }
.pip-empty { fill: #f4f4f2; }
.domino-num { fill: var(--domino-ink); font-family: system-ui, -apple-system, sans-serif; font-weight: 700; text-anchor: middle; dominant-baseline: central; }
.end-marker { fill: var(--good); }
.end-marker.warn { fill: var(--warn); }
.center-label { fill: #fff; font-size: 13px; font-weight: bold; text-align: center; }

/* Action bar */
#action-bar { margin-top: 14px; }
#my-hand { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; min-height: 90px; padding: 10px; }
.hand-tile { background: #fff; color: #1b1b1b; border-radius: 8px; padding: 6px 10px; cursor: pointer; user-select: none; box-shadow: 0 2px 6px rgba(0,0,0,.4); transition: transform .08s; display: flex; gap: 6px; align-items: center; }
.hand-tile:hover { transform: translateY(-4px); }
.hand-tile.selected { outline: 3px solid var(--accent); transform: translateY(-6px); }
.hand-tile .tile-num { font-size: 1.3rem; font-weight: 700; width: 30px; text-align: center; }
.hand-tile.double { background: #ffe9b8; }

.controls { display: flex; gap: 10px; justify-content: center; align-items: center; margin-top: 8px; }
#move-status { color: var(--muted); }
#boneyard-label { text-align: center; color: var(--muted); margin-top: 6px; font-size: .9rem; }

.scoreboard { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.score-card { background: var(--panel-2); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px; min-width: 120px; }
.score-card b { display: block; }
.score-card .total { font-size: 1.3rem; font-weight: 700; color: var(--accent); }
.score-card .round { color: var(--muted); font-size: .8rem; }
.score-card.winner { border-color: var(--good); box-shadow: 0 0 0 2px rgba(46,204,113,.3); }

.log { margin-top: 12px; background: rgba(0,0,0,.2); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; max-height: 160px; overflow-y: auto; font-size: .85rem; color: var(--muted); }
.log div { padding: 1px 0; }

.player-avatars { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 16px 0; }
.pa { background: var(--panel-2); border: 1px solid var(--line); border-radius: 12px; padding: 12px 18px; min-width: 100px; }
.pa b { display: block; }
.pa span { color: var(--muted); font-size: .8rem; }

.hint { color: var(--muted); }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--panel-2); border: 1px solid var(--line); padding: 10px 18px; border-radius: 10px; box-shadow: 0 6px 20px rgba(0,0,0,.4); z-index: 50; }

/* Winner celebration */
#celebration { position: fixed; inset: 0; pointer-events: none; z-index: 60; display: flex; align-items: center; justify-content: center; }
#confetti-layer { position: absolute; inset: 0; overflow: hidden; }
.confetti-piece { position: absolute; top: -20px; width: 10px; height: 14px; opacity: .9; border-radius: 2px; animation-name: confetti-fall; animation-timing-function: linear; animation-iteration-count: infinite; }
@keyframes confetti-fall { 0% { transform: translateY(-20px) rotate(0deg); } 100% { transform: translateY(110vh) rotate(720deg); } }
#celebration-banner { position: relative; background: rgba(20,26,40,.94); border: 2px solid var(--accent-2); border-radius: 16px; padding: 24px 44px; box-shadow: 0 12px 48px rgba(0,0,0,.55); text-align: center; animation: banner-pop .5s cubic-bezier(.2,1.6,.4,1); }
#celebration-title { font-size: 1.9rem; font-weight: 800; color: var(--text); white-space: nowrap; }
@keyframes banner-pop { 0% { transform: scale(.3); opacity: 0; } 60% { transform: scale(1.08); opacity: 1; } 100% { transform: scale(1); opacity: 1; } }

/* Mini domino for hands inside SVG-adjacent elements */