:root {
  --bg: #161512;
  --panel: #262421;
  --panel2: #2f2c29;
  --line: #3a3733;
  --text: #bababa;
  --strong: #e6e4e1;
  --dim: #8a8784;
  --accent: #3692e7;
  --green: #759900;
  --green-bg: #3b4a14;
  --red: #cc3333;
  --yellow: #d59120;
  --cyan: #4fb3bf;
  --magenta: #b36fd1;
  --light: #f0d9b5;
  --dark: #b58863;
  --clock: #1f1d1b;
  --clock-run: #4a5d23;
  --header-h: 52px;
  --cmd-h: 50px;
  --log-h: 0px;
  font-synthesis: none;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #edebe9;
    --panel: #ffffff;
    --panel2: #f4f2ef;
    --line: #dcd9d5;
    --text: #4d4d4d;
    --strong: #1d1d1d;
    --dim: #868480;
    --green-bg: #dfeabe;
    --clock: #e9e6e2;
    --clock-run: #cfe0a4;
  }
}
body.log-open { --log-h: 150px; }

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
  display: flex;
  flex-direction: column;
  height: 100dvh;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
button, input { font: inherit; color: inherit; }
button {
  background: var(--panel2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 12px;
  cursor: pointer;
  min-height: 34px;
}
button:hover { border-color: var(--dim); }
button:active { transform: translateY(1px); }
button:disabled { opacity: .4; cursor: default; transform: none; border-color: var(--line); }
a { color: var(--accent); text-decoration: none; }
.dim { color: var(--dim); }
.num { font-variant-numeric: tabular-nums; }
code { background: var(--panel2); padding: 1px 5px; border-radius: 4px; }

/* ---- header --------------------------------------------------------------------------- */
#top {
  height: var(--header-h);
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: none;
}
.brand {
  display: flex; align-items: center; gap: 8px;
  background: none; border: 0; padding: 0;
  color: var(--strong); font-weight: 600; font-size: 17px;
}
.brand img { width: 30px; height: 30px; }
#who { display: flex; align-items: center; gap: 6px; white-space: nowrap; color: var(--strong); }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--dim); flex: none; }
.dot.ok { background: #6bbf3a; box-shadow: 0 0 6px #6bbf3a88; }
.dot.bad { background: var(--red); }
#chips { display: flex; gap: 6px; white-space: nowrap; }
.chip { background: var(--panel2); border: 1px solid var(--line); border-radius: 12px; padding: 2px 10px; font-size: 13px; }
.chip b { color: var(--strong); font-weight: 600; }
.spacer { flex: 1; }
.pill { border-radius: 16px; white-space: nowrap; }
.pill.on { background: var(--green-bg); border-color: var(--green); color: var(--strong); }
.pill.off { background: #4a1f1f; border-color: var(--red); color: #f2d0d0; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .pill.off { background: #f6d6d6; color: #7a1c1c; } }

/* ---- main ------------------------------------------------------------------------------ */
#main { flex: 1; min-height: 0; overflow: auto; padding: 14px; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; min-width: 0; }
.panel h3 { margin: 0 0 8px; font-size: 13px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--dim); }
.panel h3 .dim { text-transform: none; letter-spacing: 0; font-weight: 400; margin-left: 6px; }

/* ---- overview ---------------------------------------------------------------------------- */
#cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(clamp(250px, 29vw, 380px), 1fr));
  gap: 14px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: border-color .15s;
}
.card:hover { border-color: var(--dim); }
.card.myturn { border-color: var(--green); }
.card .head { display: flex; justify-content: space-between; font-size: 12px; color: var(--dim); }
.card .head b { color: var(--strong); }
.card .board-row { gap: 5px; }
.card .evalbar { width: 7px; }
.card .evalbar .txt { display: none; }
.card .foot { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; }
.card .foot .ev { color: var(--strong); font-weight: 600; }
.state.think { color: #7fc241; font-weight: 600; }
.state.ponder { color: var(--magenta); font-weight: 600; }
.state.win { color: #7fc241; font-weight: 600; }
.state.loss { color: var(--red); font-weight: 600; }
.state.draw { color: var(--yellow); font-weight: 600; }

.player { display: flex; align-items: center; gap: 8px; min-height: 34px; min-width: 0; }
.player .name { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--strong); }
.player .name .title { color: #c7a54f; font-weight: 600; margin-right: 4px; }
.player .name .rating { color: var(--dim); margin-left: 4px; }
.player .name .me { color: var(--accent); font-size: 11px; margin-left: 6px; }
.player .flag { font-size: 12px; color: var(--yellow); }
.clock {
  font: 600 18px/1 ui-monospace, "Roboto Mono", "Cascadia Mono", monospace;
  font-variant-numeric: tabular-nums;
  background: var(--clock);
  color: var(--strong);
  border-radius: 4px;
  padding: 6px 8px;
  min-width: 78px;
  text-align: right;
}
.clock.run { background: var(--clock-run); }
.clock.low { color: #ff6b6b; }
.card .clock { font-size: 15px; padding: 4px 6px; min-width: 64px; }

#lists { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin-top: 14px; }
.rows { list-style: none; margin: 0; padding: 0; }
.rows li { display: flex; align-items: center; gap: 8px; padding: 5px 0; border-top: 1px solid var(--line); flex-wrap: wrap; }
.rows li:first-child { border-top: 0; }
.rows li .grow { flex: 1; min-width: 120px; }
.rows li button { padding: 3px 10px; min-height: 28px; }
.rows .none { color: var(--dim); }
.res { font-weight: 600; min-width: 36px; }
.res.win { color: #7fc241; } .res.loss { color: var(--red); } .res.draw { color: var(--yellow); }
.empty { text-align: center; padding: 40px 0 20px; }
.empty img { width: 64px; opacity: .7; }

/* ---- board --------------------------------------------------------------------------------- */
.board-row { display: flex; align-items: stretch; gap: 8px; }
.board {
  position: relative;
  width: 100%;
  aspect-ratio: 1;
  border-radius: 3px;
  overflow: hidden;
  user-select: none;
  touch-action: manipulation;
  flex: 1;
  min-width: 0;
}
.squares { position: absolute; inset: 0; display: grid; grid-template: repeat(8, 1fr) / repeat(8, 1fr); }
.sq { position: relative; }
.sq.l { background: var(--light); }
.sq.d { background: var(--dark); }
.sq.last::after { content: ""; position: absolute; inset: 0; background: rgba(155, 199, 0, .41); }
.sq.check::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(255, 0, 0, 1) 0%, rgba(231, 0, 0, 1) 25%, rgba(169, 0, 0, 0) 89%, rgba(158, 0, 0, 0) 100%);
}
.coord { position: absolute; font-size: clamp(9px, 2.5cqw, 15px); font-weight: 700; line-height: 1; z-index: 1; pointer-events: none; }
.board { container-type: inline-size; }
.coord.rank { top: 3%; left: 4%; }
.coord.file { bottom: 3%; right: 5%; }
.sq.l .coord { color: var(--dark); }
.sq.d .coord { color: var(--light); }
.pieces { position: absolute; inset: 0; pointer-events: none; }
.piece {
  position: absolute; left: 0; top: 0;
  width: 12.5%; height: 12.5%;
  background-size: cover;
  will-change: transform;
  transition: transform .22s cubic-bezier(.25, .8, .35, 1), opacity .2s;
  z-index: 2;
}
.piece.moving { z-index: 3; }
.piece.gone { opacity: 0; }
.board.still .piece { transition: none; }
.banner {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  z-index: 5; background: rgba(22, 21, 18, .88); color: #fff; border-radius: 8px;
  padding: .5em 1em; font-weight: 600; font-size: clamp(12px, 4cqw, 22px); text-align: center; white-space: nowrap;
}

.evalbar { position: relative; width: 16px; flex: none; border-radius: 3px; overflow: hidden; background: #403d39; }
.evalbar .fill { position: absolute; left: 0; right: 0; bottom: 0; background: #f2f2f2; transition: height .4s ease, top .4s ease; }
.evalbar.flip .fill { bottom: auto; top: 0; }
.evalbar::after { content: ""; position: absolute; left: 0; right: 0; top: 50%; border-top: 1px solid #d85000aa; }
.evalbar .txt {
  position: absolute; left: 0; right: 0; bottom: 3px; font-size: 9px; text-align: center; font-weight: 700;
  color: #403d39; writing-mode: vertical-rl; transform: rotate(180deg);
}
.evalbar .txt.top { bottom: auto; top: 3px; color: #f2f2f2; }

/* ---- detail ---------------------------------------------------------------------------- */
#detail {
  display: grid;
  grid-template-columns: var(--bsize) minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  --bsize: min(calc(100dvh - var(--header-h) - var(--cmd-h) - var(--log-h) - 210px + 24px), 56vw);
}
#detail[hidden] { display: none; }
#d-left { display: flex; flex-direction: column; gap: 6px; min-width: 0; position: sticky; top: 0; }
.gamebar { display: flex; align-items: center; gap: 8px; }
.gamebar #d-title { flex: 1; text-align: center; color: var(--dim); font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.icon { padding: 4px 10px; }
.controls { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-top: 4px; }
.controls a { margin-left: auto; }
.controls .warn:hover { border-color: var(--yellow); }
.controls .danger:hover { border-color: var(--red); color: #ff8a8a; }
#d-right { display: flex; flex-direction: column; gap: 14px; min-width: 0; }
#d-summary { display: flex; flex-wrap: wrap; gap: 4px 18px; margin-bottom: 6px; }
#d-summary .big { font-size: 22px; font-weight: 700; color: var(--strong); }
#d-summary .kv { color: var(--dim); }
#d-summary .kv b { color: var(--text); font-weight: 600; }
.tablewrap { overflow-x: auto; max-height: 260px; overflow-y: auto; }
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; font-size: 13px; }
th { position: sticky; top: 0; background: var(--panel); text-align: right; font-weight: 600; color: var(--dim); padding: 3px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { text-align: right; padding: 3px 8px; white-space: nowrap; border-bottom: 1px solid var(--line); }
th.pv, td.pv { text-align: left; width: 100%; white-space: normal; min-width: 220px; }
tbody tr:first-child td { color: var(--strong); }
tbody tr:first-child td.pv { font-weight: 600; }
tbody tr:not(:first-child) td.pv { color: var(--dim); }
td.pos { color: #7fc241 !important; } td.neg { color: #ff7b7b !important; }
.chartwrap { position: relative; height: 150px; }
#d-chart { width: 100%; height: 100%; display: block; background: #3b3835; border-radius: 4px; touch-action: none; }
#d-tip { position: absolute; top: 4px; padding: 3px 8px; background: rgba(0, 0, 0, .8); color: #fff; border-radius: 4px; font-size: 12px; pointer-events: none; white-space: nowrap; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
#d-moves { max-height: 260px; overflow-y: auto; display: grid; grid-template-columns: 2.6em 1fr 1fr; font-variant-numeric: tabular-nums; }
#d-moves div { padding: 2px 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#d-moves .n { color: var(--dim); background: var(--panel2); text-align: right; }
#d-moves .m.cur { background: #3692e733; color: var(--strong); border-radius: 3px; }
#d-moves .m .e { color: var(--dim); font-size: 11px; margin-left: 5px; }
#d-moves .m.ours { color: var(--strong); }
#d-chat { max-height: 210px; overflow-y: auto; font-size: 13px; }
#d-chat .line { padding: 1px 0; }
#d-chat .who { color: var(--accent); }
#d-chat .room { color: var(--dim); font-size: 11px; }
#chat-form { display: flex; gap: 6px; margin-top: 8px; }
#chat-form input { flex: 1; min-width: 0; background: var(--panel2); border: 1px solid var(--line); border-radius: 6px; padding: 6px 8px; }
#d-raw {
  margin: 0; max-height: 260px; overflow: auto; font: 12px/1.35 ui-monospace, "Roboto Mono", "Cascadia Mono", monospace;
  white-space: pre-wrap; word-break: break-all;
}
#d-raw .o { color: var(--cyan); }
#d-raw .t { color: var(--dim); }

/* ---- footer: log + command line -------------------------------------------------------- */
#bottom { flex: none; background: var(--panel); border-top: 1px solid var(--line); }
#log {
  height: var(--log-h); overflow-y: auto; padding: 0 14px;
  font: 12.5px/1.45 ui-monospace, "Roboto Mono", "Cascadia Mono", monospace;
  border-bottom: 1px solid var(--line);
}
body:not(.log-open) #log { border-bottom: 0; }
#log .t { color: var(--dim); margin-right: 6px; }
#log .warning { color: var(--yellow); }
#log .error { color: #ff7b7b; }
#log .debug { color: var(--dim); }
#log .cmd { color: var(--accent); }
#cmd-form { height: var(--cmd-h); display: flex; align-items: center; gap: 8px; padding: 0 14px calc(env(safe-area-inset-bottom)); }
.prompt { color: var(--accent); font-weight: 700; font-size: 18px; }
#cmd { flex: 1; min-width: 0; background: var(--panel2); border: 1px solid var(--line); border-radius: 6px; padding: 7px 10px; font-family: ui-monospace, "Roboto Mono", monospace; }
#cmd:focus, #chat-in:focus { outline: none; border-color: var(--accent); }
.red { color: #ff7b7b; } .green { color: #7fc241; } .yellow { color: var(--yellow); } .cyan { color: var(--cyan); }
.magenta { color: var(--magenta); } .blue { color: var(--accent); } .bold { font-weight: 700; }

#offline {
  position: fixed; top: calc(var(--header-h) + 8px); left: 50%; transform: translateX(-50%);
  background: var(--red); color: #fff; padding: 6px 14px; border-radius: 16px; z-index: 20; font-weight: 600;
}

/* ---- narrow screens (portrait tablets, phones) ------------------------------------------------ */
@media (max-width: 900px) {
  #detail { grid-template-columns: minmax(0, 1fr); --bsize: 100%; }
  #d-left { position: static; max-width: min(100%, calc(100dvh - var(--header-h) - var(--cmd-h) - 230px + 24px)); margin: 0 auto; width: 100%; }
  .split { grid-template-columns: 1fr; }
  #chips .chip.opt { display: none; }
  #main { padding: 10px; }
}
@media (max-width: 560px) {
  #cards { grid-template-columns: 1fr; }
  .brand span { display: none; }
}

/* ---- viewer (read-only mirror) ------------------------------------------------------------ */
#foot { flex: none; padding: 7px 14px calc(7px + env(safe-area-inset-bottom)); background: var(--panel);
        border-top: 1px solid var(--line); font-size: 12px; }
#who { text-decoration: none; }
#tele { font-size: 12px; padding: 3px 10px; border: 1px solid var(--line); background: var(--panel2); }
#tele.on { background: var(--green-bg); border-color: var(--green); color: var(--strong); }
.small { font-size: 12.5px; line-height: 1.5; margin: 0; }
a.icon { display: inline-flex; align-items: center; justify-content: center; min-height: 34px; min-width: 34px;
         border: 1px solid var(--line); border-radius: 6px; background: var(--panel2); color: var(--text); }
#detail { --bsize: min(calc(100dvh - var(--header-h) - 36px - 170px + 24px), 56vw); }
.nodata { color: var(--dim); font-size: 13px; padding: 6px 0; }
.card .foot .ev:empty::before { content: "–"; color: var(--dim); }
@media (max-width: 900px) {
  #d-left { max-width: min(100%, calc(100dvh - var(--header-h) - 36px - 190px + 24px)); }
}