:root {
  --bg: #08475f;
  --wood: #efe3c2;
  --wood-edge: #b39b6a;
  --gap: #04364a;
  --red: #d0342c;
  --red-hi: #f0685f;
  --black: #1c1c1c;
  --black-hi: #4a4a4a;
  --hole: #cdbf9c;
  --legal: #6fd08c;
  --text: #eaf4f8;
  --muted: #8fb6c6;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body {
  margin: 0; height: 100%; overflow: hidden;
  background: radial-gradient(circle at 50% 20%, #0a5f86, #052e40 80%);
  color: var(--text);
  font-family: ui-rounded, "SF Pro Rounded", "Segoe UI", system-ui, sans-serif;
  user-select: none;
}
#app {
  height: 100%; display: flex; flex-direction: column;
  padding: env(safe-area-inset-top) 12px env(safe-area-inset-bottom);
}

/* ---- header ---- */
header {
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: 8px; padding: 14px 4px 10px;
}
.score { display: flex; align-items: center; gap: 7px; }
#scoreBlack { justify-content: flex-end; }
.dot { width: 20px; height: 20px; border-radius: 50%; flex: none; }
.dot.red { background: radial-gradient(circle at 32% 28%, var(--red-hi), var(--red) 60%, #7d1a15); }
.dot.black { background: radial-gradient(circle at 32% 28%, var(--black-hi), var(--black) 60%, #000); }
.pts { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.left { font-size: 12px; color: var(--muted); }
.left::before { content: "×"; margin-right: 1px; }
.turnbox { text-align: center; }
.turnlabel { font-size: 15px; font-weight: 600; }
.sub { font-size: 11px; color: var(--muted); margin-top: 2px; height: 14px; }
.score.active .pts { color: #fff; }
.score:not(.active) { opacity: .5; }

/* ---- board ---- */
main { flex: 1; display: flex; align-items: center; justify-content: center; min-height: 0; }
#boardWrap { width: 100%; max-width: min(94vw, 78vh); aspect-ratio: 1; }
#board {
  width: 100%; height: 100%;
  display: grid; gap: 0;
  background: var(--gap);
  padding: 6px; border-radius: 12px;
}
.cell {
  position: relative; background: var(--wood);
  display: flex; align-items: center; justify-content: center;
}
.cell.void { background: transparent; }
/* Panel separation: cells on a panel boundary get an outer margin, so the
   dark background shows through as a visible seam between panels while
   cells inside the same panel stay tight together. */
.cell.eT { margin-top: 5px; border-top-left-radius: 5px; border-top-right-radius: 5px; }
.cell.eB { margin-bottom: 5px; border-bottom-left-radius: 5px; border-bottom-right-radius: 5px; }
.cell.eL { margin-left: 5px; border-top-left-radius: 5px; border-bottom-left-radius: 5px; }
.cell.eR { margin-right: 5px; border-top-right-radius: 5px; border-bottom-right-radius: 5px; }
.cell:not(.void) {
  box-shadow: inset 0 1px 0 rgba(255,255,255,.35);
}

.hole {
  width: 72%; aspect-ratio: 1; border-radius: 50%;
  background: var(--hole);
  box-shadow: inset 0 2px 3px rgba(0,0,0,.35);
  display: flex; align-items: center; justify-content: center;
}
.marble {
  width: 100%; height: 100%; border-radius: 50%;
  box-shadow: 0 2px 3px rgba(0,0,0,.45);
  animation: drop .18s cubic-bezier(.3,1.6,.5,1);
}
.marble.red { background: radial-gradient(circle at 32% 28%, var(--red-hi), var(--red) 55%, #6d1712); }
.marble.black { background: radial-gradient(circle at 32% 28%, var(--black-hi), var(--black) 55%, #000); }
.marble.ghost { opacity: .45; }
@keyframes drop { from { transform: scale(.3); } to { transform: scale(1); } }

.cell.legal .hole {
  background: var(--legal);
  box-shadow: inset 0 2px 3px rgba(0,0,0,.25), 0 0 8px rgba(111,208,140,.55);
  cursor: pointer;
}
.cell.lastmove::after {
  content: ""; position: absolute; inset: 12%;
  border: 2px solid #ffd84d; border-radius: 50%; pointer-events: none;
}

/* ---- footer ---- */
footer { display: flex; gap: 8px; padding: 12px 4px calc(12px + env(safe-area-inset-bottom)); }
button {
  flex: 1; padding: 14px 10px; border-radius: 12px; border: 0;
  font-size: 15px; font-weight: 650; font-family: inherit; cursor: pointer;
  transition: transform .08s, opacity .15s;
}
button:active { transform: scale(.97); }
button:disabled { opacity: .3; cursor: default; }
.primary { background: #ffd84d; color: #2a2000; }
.ghost { background: rgba(255,255,255,.13); color: var(--text); }

/* ---- overlay ---- */
#overlay {
  position: fixed; inset: 0; background: rgba(2,20,30,.82);
  display: flex; align-items: center; justify-content: center; padding: 24px;
  backdrop-filter: blur(4px);
}
#overlay.hidden { display: none; }
.panelcard {
  background: #0b4d69; border-radius: 18px; padding: 24px;
  width: 100%; max-width: 360px; text-align: center;
}
.panelcard h2 { margin: 0 0 14px; font-size: 22px; }
.row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 15px; }
.row.tot { border-top: 1px solid rgba(255,255,255,.2); margin-top: 8px; padding-top: 10px; font-weight: 700; font-size: 18px; }
.win { margin: 14px 0 18px; font-size: 19px; font-weight: 700; color: #ffd84d; }

/* ---- lobby ---- */
#lobby {
  position: fixed; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: flex-start; gap: 14px; padding: 24px;
  overflow-y: auto;
}
#lobby.hidden, #app.hidden, #toast.hidden { display: none; }
#lobby h1 {
  font-size: 42px; letter-spacing: 8px; margin: 0 0 18px;
  color: #ffd84d; text-shadow: 0 3px 0 rgba(0,0,0,.3);
}
#lobbyMain, #waiting, #joining {
  display: flex; flex-direction: column; gap: 10px;
  width: 100%; max-width: 300px; align-items: stretch; text-align: center;
}
#lobbyMain.hidden, #waiting.hidden, #joining.hidden { display: none; }
button.big { padding: 17px; font-size: 17px; }
.muted { color: var(--muted); font-size: 13px; }
#codeDisplay {
  font-size: 46px; font-weight: 800; letter-spacing: 10px;
  color: #ffd84d; margin: 4px 0 10px; text-indent: 10px;
}
#codeInput {
  font-size: 34px; text-align: center; letter-spacing: 10px; text-indent: 10px;
  padding: 12px; border-radius: 12px; border: 0; width: 100%;
  font-family: inherit; font-weight: 700; text-transform: uppercase;
  background: rgba(255,255,255,.12); color: var(--text);
}
#codeInput::placeholder { color: rgba(255,255,255,.25); }
.err { color: #ff8b7d; font-size: 13px; min-height: 18px; }
.levelrow {
  position: absolute; bottom: calc(24px + env(safe-area-inset-bottom));
  display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted);
}
#levelSel {
  background: rgba(255,255,255,.12); color: var(--text); border: 0;
  padding: 8px 10px; border-radius: 9px; font-family: inherit; font-size: 13px;
}

/* ---- toast ---- */
#toast {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(90px + env(safe-area-inset-bottom));
  background: rgba(0,0,0,.8); color: #fff; padding: 10px 18px;
  border-radius: 20px; font-size: 14px; z-index: 50;
}

/* board dims out when it isn't your turn */
#board.notmine { opacity: .82; }
.you { font-size: 10px; color: #ffd84d; letter-spacing: 1px; }
.panelcard button + button { margin-top: 8px; }

/* ---- lobby options ---- */
#options {
  display: flex; flex-direction: column; gap: 8px;
  width: 100%; max-width: 300px; align-items: stretch;
  margin-top: 6px; padding-bottom: env(safe-area-inset-bottom);
}
.optrow {
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; font-size: 13px; color: var(--muted);
}
#levelSel, #firstSel {
  background: rgba(255,255,255,.12); color: var(--text); border: 0;
  padding: 8px 10px; border-radius: 9px; font-family: inherit; font-size: 13px;
}
#levelSel option, #firstSel option {
  background: var(--bg); color: var(--text);
}
.boardpick { display: flex; align-items: center; gap: 8px; }
#boardLabel {
  min-width: 74px; text-align: center; color: var(--text); font-size: 13px;
  font-variant-numeric: tabular-nums;
}
button.tiny {
  flex: none; width: 30px; height: 30px; padding: 0; border-radius: 8px;
  background: rgba(255,255,255,.12); color: var(--text); font-size: 17px; line-height: 1;
}
#preview {
  width: 108px; height: 108px; align-self: center; margin-top: 2px;
  display: grid; gap: 0; padding: 3px;
  background: var(--gap); border-radius: 7px;
}
#preview .pcell { background: var(--wood); border-radius: 1px; }
#preview .pcell.eT { margin-top: 2px; }
#preview .pcell.eB { margin-bottom: 2px; }
#preview .pcell.eL { margin-left: 2px; }
#preview .pcell.eR { margin-right: 2px; }
#preview.rand { display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 11px; background: rgba(255,255,255,.07); }