/* OLPW:css/chessworlds.css | styles for chessworlds */
:root {
    --bg: #1b1d22; --panel: #262a31; --panel2: #1f2228; --text: #e8e8e8; --muted: #8d939c; --line: #363b44;
    --accent: #7fa650; --danger: #e5484d; --shadow: rgba(0,0,0,.45);
    --light: #ebecd0; --dark: #779556;
  }
  [data-theme="light"] { --bg: #f3f1ec; --panel: #ffffff; --panel2: #f6f4ef; --text: #1f2328; --muted: #6b7078; --line: #dedad2; --shadow: rgba(30,30,40,.14); }
  * { box-sizing: border-box; margin: 0; padding: 0; }
  body { background: var(--bg); color: var(--text); font-family: system-ui, -apple-system, "Segoe UI", sans-serif; min-height: 100vh; padding: 16px 14px 90px; }
  button, select { font-family: inherit; }
  .wrap { max-width: 1200px; margin: 0 auto; }
  .top { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
  .top h1 { font-size: 24px; }
  .top a { color: var(--accent); font-weight: 600; text-decoration: none; font-size: 14px; }
  .tabs { display: flex; gap: 6px; margin-left: auto; flex-wrap: wrap; }
  .tab { border: 2px solid var(--line); background: var(--panel); color: var(--text); border-radius: 20px; padding: 7px 14px; font-weight: 700; font-size: 13px; cursor: pointer; }
  .tab.on { border-color: var(--accent); background: var(--accent); color: #fff; }
  .stage { display: flex; gap: 20px; align-items: flex-start; justify-content: center; flex-wrap: wrap; }
  #view { position: relative; }
  #view canvas { display: block; border-radius: 8px; touch-action: none; box-shadow: 0 4px 18px var(--shadow); }
  .side { width: 330px; max-width: 100%; background: var(--panel); border-radius: 10px; padding: 16px; box-shadow: 0 2px 10px var(--shadow); display: flex; flex-direction: column; gap: 12px; }
  .side h2 { font-size: 18px; }
  .side .sub { color: var(--muted); font-size: 13px; line-height: 1.45; }
  .status { background: var(--panel2); border-radius: 8px; padding: 10px 12px; font-weight: 700; font-size: 14px; }
  .status small { display: block; font-weight: 500; color: var(--muted); margin-top: 3px; }
  .players { display: flex; flex-direction: column; gap: 6px; }
  .pl { display: flex; align-items: center; gap: 8px; padding: 7px 10px; border-radius: 8px; background: var(--panel2); font-size: 13px; border: 2px solid transparent; }
  .pl.on { border-color: var(--accent); }
  .pl.out { opacity: .45; text-decoration: line-through; }
  .pl i { width: 14px; height: 14px; border-radius: 50%; flex: none; }
  .pl b { flex: 1; }
  .pl span { font-weight: 700; }
  .row { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
  .row label { font-size: 12px; color: var(--muted); font-weight: 700; min-width: 64px; }
  .seg { display: inline-flex; border: 2px solid var(--line); border-radius: 8px; overflow: hidden; }
  .seg button { border: 0; background: var(--panel2); color: var(--text); padding: 5px 10px; font-size: 12px; font-weight: 700; cursor: pointer; }
  .seg button.on { background: var(--accent); color: #fff; }
  .btn { border: 0; border-radius: 8px; padding: 9px 14px; font-weight: 700; font-size: 13px; cursor: pointer; background: var(--panel2); color: var(--text); border: 2px solid var(--line); }
  .btn.primary { background: #e8590c; border-color: #e8590c; color: #fff; }
  .log { max-height: 170px; overflow-y: auto; background: var(--panel2); border-radius: 8px; padding: 8px 10px; font-size: 12px; line-height: 1.6; font-family: ui-monospace, Consolas, monospace; }
  .log:empty::before { content: "No moves yet."; color: var(--muted); font-family: system-ui, sans-serif; }
  .rules { font-size: 12px; color: var(--muted); line-height: 1.5; }
  .rules b { color: var(--text); }
  .zoom { position: absolute; right: 10px; top: 10px; display: flex; flex-direction: column; gap: 6px; }
  .zoom button { width: 36px; height: 36px; border-radius: 8px; border: 0; background: rgba(20,20,20,.75); color: #fff; font-size: 18px; font-weight: 700; cursor: pointer; }
  .toast { position: fixed; left: 50%; bottom: 96px; transform: translateX(-50%); background: rgba(20,20,20,.92); color: #fff; padding: 10px 18px; border-radius: 10px; font-size: 14px; font-weight: 600; opacity: 0; transition: opacity .2s; pointer-events: none; z-index: 50; }
  .toast.on { opacity: 1; }
  .thinking::after { content: ""; display: inline-block; width: 10px; height: 10px; margin-left: 8px; border-radius: 50%; border: 2px solid var(--accent); border-top-color: transparent; animation: spin .8s linear infinite; vertical-align: -1px; }
  @keyframes spin { to { transform: rotate(360deg); } }

  /* 3D chess */
  .levels { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; width: min(860px, calc(100vw - 430px)); }
  @media (max-width: 1000px) { .levels { width: calc(100vw - 30px); grid-template-columns: repeat(3, 1fr); } }
  .levels.stack { display: flex; flex-direction: column; align-items: center; width: min(560px, calc(100vw - 30px)); gap: 0; padding: 0 0 20px; }
  .lvl { background: var(--panel); border-radius: 10px; padding: 8px; box-shadow: 0 2px 10px var(--shadow); }
  .levels.stack .lvl { width: 270px; transform: perspective(900px) rotateX(36deg); margin: -20px 0; background: rgba(127,166,80,.10); border: 1px solid rgba(127,166,80,.45); box-shadow: none; }
  .lvlname { font-weight: 800; font-size: 13px; margin-bottom: 6px; display: flex; justify-content: space-between; color: var(--muted); }
  .lgrid { display: grid; grid-template-columns: repeat(5, 1fr); grid-template-rows: repeat(5, 1fr); aspect-ratio: 1; border-radius: 6px; overflow: hidden; }
  .levels.stack .lgrid { opacity: .93; }
  .c3 { position: relative; display: flex; align-items: center; justify-content: center; cursor: pointer; min-height: 0; overflow: hidden; }
  .c3.l { background: var(--light); } .c3.d { background: var(--dark); }
  .c3.last { box-shadow: inset 0 0 0 100vmax rgba(255,255,60,.38); }
  .c3.sel { box-shadow: inset 0 0 0 100vmax rgba(255,170,0,.55); }
  .c3.chk { box-shadow: inset 0 0 0 100vmax rgba(229,72,77,.6); }
  .c3.tg::after { content: ""; position: absolute; width: 30%; height: 30%; border-radius: 50%; background: rgba(0,0,0,.25); }
  .c3.tg.cap::after { width: 86%; height: 86%; background: transparent; border: 4px solid rgba(0,0,0,.28); box-sizing: border-box; }
  .c3 .co { position: absolute; left: 2px; top: 1px; font-size: 9px; font-weight: 700; color: rgba(0,0,0,.45); }
  .pc3 { font-size: clamp(18px, 3.2vw, 34px); line-height: 1; font-family: "Segoe UI Symbol", "Noto Sans Symbols 2", "DejaVu Sans", serif; pointer-events: none; }
  .levels.stack .pc3 { font-size: 30px; }
  .pc3.w { color: #fbfbfb; text-shadow: 0 0 1px #000, 0 0 1px #000, 0 0 2px #000, 0 2px 3px rgba(0,0,0,.4); }
  .pc3.b { color: #161616; text-shadow: 0 0 1px rgba(255,255,255,.7), 0 2px 3px rgba(0,0,0,.3); }
  .pc3.uni { font-size: clamp(15px, 2.6vw, 28px); text-shadow: none; }
  .pc3.uni.w { filter: drop-shadow(0 0 1.5px #000); }
  .pc3.uni.b { filter: grayscale(1) brightness(.35) drop-shadow(0 0 1px rgba(255,255,255,.8)); }