@font-face {
  font-family: "PxVGA";
  src: url("./fonts/WebPlus_IBM_VGA_8x16.woff") format("woff");
  font-display: swap;
}
@font-face {
  font-family: "PxSmall";
  src: url("./fonts/Web437_IBM_VGA_8x14.woff") format("woff");
  font-display: swap;
}

:root {
  color-scheme: light;
  --paper: #f5f1e6;
  --panel: #efe9d8;
  --ink: #1b1a15;
  --soft: #726b58;
  --line: #d6ccb2;
  --accent: #5f7a45;
  --light-sq: #eae1c6;
  --dark-sq: #bda06d;
  --sel: #d7cc9d;
  --check: #b24b43;
  --mono: "PxVGA", "Consolas", "Courier New", monospace;
  --small: "PxSmall", var(--mono);
  --sq: 62px;
}

* { box-sizing: border-box; }

html, body { margin: 0; min-height: 100%; background: var(--paper); }

body {
  color: var(--ink);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 24px;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: unset;
}

#app { max-width: 900px; margin: 0 auto; padding: 40px 22px 80px; }

a { color: inherit; text-decoration: none; border-bottom: 1px dotted var(--soft); }

button { font-family: inherit; font-size: inherit; color: inherit; cursor: pointer; background: none; border: none; padding: 0; }

.soft { color: var(--soft); }

@keyframes blink { 0%, 55% { opacity: 1; } 56%, 100% { opacity: 0; } }
.cursor { color: var(--accent); animation: blink 1.1s step-end infinite; }

/* Home — a text-mode title screen */

.home { padding-top: 40px; }
.home .logo {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: clamp(7px, 2.15vw, 15px);
  line-height: 1;
  color: var(--ink);
  white-space: pre;
  overflow-x: auto;
}
.home .kicker { color: var(--soft); margin: 0 0 40px; padding-left: 2px; }
.home .kicker::before { content: "// "; color: var(--accent); }

.menu { display: block; }
.menu button {
  display: block;
  width: 100%;
  text-align: left;
  padding: 3px 0;
  letter-spacing: 1px;
}
.menu button::before { content: "  "; white-space: pre; color: var(--accent); }
.menu button:hover::before,
.menu button:focus-visible::before { content: "> "; }
.menu button:hover, .menu button:focus-visible { color: var(--accent); outline: none; }

/* Screen chrome */

.topbar { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 26px; }
.topbar h2 { margin: 0; font-family: var(--mono); font-size: 22px; font-weight: normal; }
.topbar h2::before { content: "# "; color: var(--accent); }
.back { color: var(--soft); }
.back:hover { color: var(--ink); }

/* Setup */

.setup { max-width: 560px; }
.field { margin-bottom: 30px; }
.field > label { display: block; color: var(--soft); margin-bottom: 10px; }
.field > label::before { content: ": "; color: var(--accent); }

.toggle { display: flex; gap: 4px; flex-wrap: wrap; }
.toggle button { padding: 2px 6px; color: var(--soft); }
.toggle button::before { content: "[ "; }
.toggle button::after { content: " ]"; }
.toggle button:hover { color: var(--ink); }
.toggle button[aria-pressed="true"] { color: var(--ink); }
.toggle button[aria-pressed="true"]::before { content: "[x "; color: var(--accent); }
.toggle button[aria-pressed="true"]::after { content: " ]"; color: var(--accent); }

/* Opponent list — a plain menu with dotted leaders, not cards */

.pick { display: block; }
.pick .row {
  display: flex;
  align-items: baseline;
  width: 100%;
  text-align: left;
  padding: 7px 0;
  gap: 10px;
  border-bottom: 1px solid var(--line);
}
.pick .row:first-child { border-top: 1px solid var(--line); }
.pick .cur { width: 1ch; color: var(--accent); white-space: pre; }
.pick .face { font-family: system-ui, sans-serif; }
.pick .name { color: var(--ink); }
.pick .blurb { color: var(--soft); }
.pick .leader { flex: 1; border-bottom: 1px dotted var(--line); transform: translateY(-4px); }
.pick .row:hover .name { color: var(--accent); }
.pick .row[aria-pressed="true"] .cur::before { content: ">"; }
.pick .row[aria-pressed="true"] .name { color: var(--accent); }

@media (max-width: 560px) {
  .pick .blurb { display: none; }
}

.custom { margin-top: 10px; display: flex; gap: 18px; color: var(--soft); }
.custom.hidden { display: none; }
.custom input {
  width: 5ch;
  font-family: var(--mono);
  font-size: 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 2px 4px;
}

.load {
  width: 100%;
  font-family: var(--small);
  font-size: 14px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
  padding: 8px;
  resize: vertical;
}

.start {
  margin-top: 10px;
  font-size: 18px;
  letter-spacing: 2px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 22px;
  box-shadow: 3px 3px 0 var(--line);
  transition: transform .06s ease, box-shadow .06s ease;
}
.start::before { content: "> "; }
.start:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--line); }
.start:hover::after { content: " _"; }
.start:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--line); }

/* Play */

.play { display: grid; grid-template-columns: auto 240px; gap: 30px; align-items: start; }
.arena { display: flex; flex-direction: column; gap: 8px; }
.board-row { display: flex; gap: 10px; align-items: stretch; }
@media (max-width: 720px) {
  .play { grid-template-columns: 1fr; }
  :root { --sq: min(10.6vw, 62px); }
  .board-row { justify-content: center; }
}

/* HUD — one row per combatant: face, name, their fallen, and their clock */

.hud { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; min-height: 26px; }
.hud .face { font-family: system-ui, "Segoe UI Emoji", sans-serif; font-size: 20px; display: inline-block; }
.hud .who { color: var(--ink); }
.hud .captured { display: flex; flex-wrap: wrap; gap: 1px; align-items: baseline; font-family: system-ui, "Segoe UI Emoji", sans-serif; font-size: 15px; line-height: 1; }
.hud .captured .cap.trad.w { color: #fbf7ec; text-shadow: 0 0 1px #000, 0 1px 1px rgba(0,0,0,.45); }
.hud .captured .cap.trad.b { color: #141109; }
.hud .mat { color: var(--accent); font-size: 14px; }
.hud.thinking .face { animation: bob 0.8s ease infinite; }
@keyframes bob { 50% { transform: translateY(-3px); } }

/* Clock — the digits ride on a draining time bar */

.hud .clock {
  position: relative;
  margin-left: auto;
  overflow: hidden;
  display: inline-flex;
  padding: 2px 10px;
  border: 1px solid var(--line);
  min-width: 7ch;
  justify-content: flex-end;
}
.clock .bar {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 100%;
  background: var(--accent);
  opacity: 0.16;
  transition: width 0.1s linear;
}
.clock .time { position: relative; font-size: 20px; letter-spacing: 1px; }
.clock.running { border-color: var(--ink); }
.clock.low .time { color: var(--check); }
.clock.low { animation: pulse 0.5s step-end infinite; }
@keyframes pulse { 50% { border-color: var(--check); } }
.clock.flag { opacity: 0.5; }

/* Eval bar — white's share of the position, from the bottom up */

.evalwrap { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.evalbar {
  width: 12px;
  flex: 1;
  border: 1px solid var(--line);
  background: #1b1a15;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.evalfill { width: 100%; height: 50%; background: #f5f1e6; transition: height 0.45s ease; }
.evalnum { font-family: var(--small); font-size: 12px; color: var(--soft); }

/* Last-move arrow */

.arrows { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 4; pointer-events: none; }
.arrow { stroke: var(--accent); stroke-width: 0.22; stroke-linecap: round; fill: none; opacity: 0.55; }
polygon.arrow { fill: var(--accent); stroke: none; }

.board-wrap { width: calc(var(--sq) * 8); }
.board {
  position: relative;
  width: calc(var(--sq) * 8);
  height: calc(var(--sq) * 8);
  border: 1px solid var(--ink);
  display: grid;
  grid-template-columns: repeat(8, var(--sq));
  grid-template-rows: repeat(8, var(--sq));
  user-select: none;
  touch-action: manipulation;
}

.sq { position: relative; display: flex; align-items: center; justify-content: center; }
.sq.light { background: var(--light-sq); }
.sq.dark { background: var(--dark-sq); }

.sq .coord { position: absolute; font-family: var(--small); font-size: 14px; line-height: 1; color: rgba(0,0,0,.4); }
.sq.dark .coord { color: rgba(255,255,255,.5); }
.sq .coord.file { right: 3px; bottom: 2px; }
.sq .coord.rank { left: 3px; top: 1px; }

.sq.last::before { content: ""; position: absolute; inset: 0; background: var(--sel); opacity: .5; mix-blend-mode: multiply; }
.sq.sel::after { content: ""; position: absolute; inset: 0; background: var(--sel); opacity: .7; mix-blend-mode: multiply; }
.sq.check::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle, var(--check) 55%, transparent 72%); opacity: .5; }

.dot { position: absolute; width: 26%; height: 26%; border-radius: 50%; background: rgba(0,0,0,.24); pointer-events: none; }
.dot.capture { width: 82%; height: 82%; background: none; border: 3px solid rgba(0,0,0,.24); }

/* Pieces */

.piece {
  position: absolute;
  width: var(--sq);
  height: var(--sq);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, "Segoe UI Emoji", sans-serif;
  font-size: calc(var(--sq) * .64);
  line-height: 1;
  cursor: grab;
  z-index: 2;
  transition: transform .26s cubic-bezier(.2,.7,.25,1);
  will-change: transform;
}
.piece .glyph { position: relative; z-index: 2; }
/* Emoji share one glyph per type, so the light and dark armies are told apart by the
   token each piece rides on, not by the emoji's own colors. */
/* A grounding shadow plus a hairline light rim, so a mid-tone emoji (a grey wolf, say)
   still reads on the dark army's token without being darkened into it. */
.piece:not(.traditional) .glyph {
  filter: drop-shadow(0 1px 1px rgba(0,0,0,.4)) drop-shadow(0 0 .5px rgba(255,255,255,.55));
}
.piece::before {
  content: "";
  position: absolute;
  inset: 9%;
  border-radius: 50%;
  z-index: 1;
}
.piece.w::before {
  background: radial-gradient(circle at 38% 32%, #fffdf6, #e7dcbe 78%);
  box-shadow: 0 2px 4px rgba(0,0,0,.22), inset 0 0 0 2px rgba(90,70,28,.5);
}
.piece.b::before {
  background: radial-gradient(circle at 38% 32%, #3b362a, #14110b 78%);
  box-shadow: 0 2px 4px rgba(0,0,0,.38), inset 0 0 0 2px rgba(243,238,220,.5);
}
.piece.traditional { font-family: var(--mono); font-size: calc(var(--sq) * .8); }
.piece.traditional.w { color: #fbf7ec; text-shadow: 0 0 1px #000, 0 1px 1px rgba(0,0,0,.45); }
.piece.traditional.b { color: #141109; }
.piece.traditional::before { display: none; }
.piece.dragging { z-index: 30; transition: none; cursor: grabbing; }
.piece.captured { transition: transform .2s ease, opacity .2s ease; opacity: 0; transform: scale(.4); }
.piece.hop .glyph { animation: hop .34s ease; }
@keyframes hop { 0% { transform: translateY(0); } 45% { transform: translateY(-24%); } 100% { transform: translateY(0); } }
.piece.threat::after {
  content: "";
  position: absolute;
  inset: 3%;
  border: 2px solid var(--check);
  border-radius: 50%;
  opacity: .9;
  z-index: 3;
  pointer-events: none;
}

.puff {
  position: absolute;
  width: var(--sq);
  height: var(--sq);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, "Segoe UI Emoji", sans-serif;
  font-size: calc(var(--sq) * .5);
  z-index: 20;
  pointer-events: none;
  animation: puff .48s ease forwards;
}
@keyframes puff { from { opacity: .8; transform: scale(.7); } to { opacity: 0; transform: scale(1.3); } }

.reaction {
  position: absolute;
  width: var(--sq);
  height: var(--sq);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, "Segoe UI Emoji", sans-serif;
  font-size: calc(var(--sq) * .42);
  z-index: 25;
  pointer-events: none;
  transition: transform .8s ease, opacity .8s ease;
}
.reaction.rise { transform: translateY(-40%); opacity: 0; }

/* Assist + coach */

.assist { display: flex; flex-wrap: wrap; gap: 4px 12px; }
.assist button { color: var(--soft); }
.assist button::before { content: "[ "; color: var(--line); }
.assist button::after { content: " ]"; color: var(--line); }
.assist button[aria-pressed="true"] { color: var(--accent); }
.assist button[aria-pressed="true"]::before { content: "[x "; color: var(--accent); }
.assist button:hover { color: var(--ink); }

.coach { min-height: 0; color: var(--ink); border-left: 2px solid var(--accent); padding-left: 12px; }
.coach:empty { display: none; }

/* Panel */

.panel { display: flex; flex-direction: column; gap: 20px; }
.status { min-height: 24px; }
.status .turn-dot { display: inline-block; width: .55em; height: .55em; margin-right: .4em; border: 1px solid var(--ink); }
.status .turn-dot.w { background: var(--paper); }
.status .turn-dot.b { background: var(--ink); }
.thinking { color: var(--accent); }

.moves { max-height: 260px; overflow-y: auto; font-family: var(--small); font-size: 14px; line-height: 18px; }
.moves ol { margin: 0; padding: 0; list-style: none; }
.moves li { display: grid; grid-template-columns: 2.4em 1fr 1fr; }
.moves .no { color: var(--soft); }
.moves .san.here { color: var(--accent); }

.controls { display: flex; flex-wrap: wrap; gap: 4px 14px; }
.controls button { color: var(--soft); }
.controls button::before { content: "["; color: var(--line); }
.controls button::after { content: "]"; color: var(--line); }
.controls button:hover { color: var(--ink); }
.controls button:disabled { color: var(--line); cursor: default; }

/* Promotion */

.promo { position: absolute; z-index: 40; background: var(--paper); border: 1px solid var(--ink); display: flex; flex-direction: column; }
.promo button { width: var(--sq); height: var(--sq); font-family: system-ui, "Segoe UI Emoji", sans-serif; font-size: calc(var(--sq) * .6); }
.promo button:hover { background: var(--sel); }

/* About */

.about { max-width: 560px; line-height: 26px; }
.about .card { margin-top: 20px; padding-left: 14px; border-left: 2px solid var(--accent); }
.about .kill { margin-top: 26px; color: var(--accent); letter-spacing: 1px; }

/* Dossier — the selected opponent's character sheet */

.dossier {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 12px 14px;
  margin: -14px 0 30px;
}
.d-face { font-size: 34px; font-family: system-ui, "Segoe UI Emoji", sans-serif; line-height: 1; }
.d-name { color: var(--ink); }
.d-blurb { color: var(--soft); font-size: 14px; margin-bottom: 8px; }
.d-stats { display: flex; flex-direction: column; gap: 2px; font-size: 14px; color: var(--soft); }
.d-stats span { white-space: pre; }

/* Buttons with some heft */

.btn {
  font-family: inherit;
  font-size: 16px;
  letter-spacing: 1px;
  background: var(--ink);
  color: var(--paper);
  padding: 8px 16px;
  box-shadow: 3px 3px 0 var(--line);
  transition: transform .06s ease, box-shadow .06s ease;
}
.btn:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--line); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--line); }
.btn.ghost { background: none; color: var(--soft); box-shadow: none; border: 1px solid var(--line); }
.btn.ghost:hover { color: var(--ink); border-color: var(--ink); transform: none; }

/* The fallen king and the flinching board */

.piece.defeated .glyph {
  filter: grayscale(1) brightness(.75);
  transform: rotate(80deg);
  transition: transform .4s ease, filter .4s ease;
}
.board.shake { animation: shake .5s ease; }
@keyframes shake {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-6px, 2px); }
  40% { transform: translate(5px, -3px); }
  60% { transform: translate(-4px, -2px); }
  80% { transform: translate(3px, 2px); }
}
.reaction.stay { font-size: calc(var(--sq) * .56); }

/* Game over — the curtain call */

.gameover {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  z-index: 100;
}
.gameover.hidden { display: none; }
.go-box {
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 6px 6px 0 var(--line);
  padding: 34px 44px;
  text-align: center;
  max-width: min(92vw, 480px);
  animation: go-in .3s ease;
}
@keyframes go-in { from { transform: translateY(14px); opacity: 0; } }
.go-banner {
  font-family: var(--mono);
  font-size: clamp(24px, 6vw, 40px);
  letter-spacing: 4px;
  margin: 0 0 10px;
  color: var(--ink);
}
.go-banner::after { content: "_"; color: var(--accent); animation: blink 1.1s step-end infinite; }
.go-detail { margin: 0 0 6px; font-size: 18px; }
.go-meta { color: var(--soft); margin: 0 0 22px; font-size: 14px; }
.go-actions { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 14px; }
.go-pgn { color: var(--soft); }
.go-pgn:hover { color: var(--ink); }

/* CRT theme — phosphor green on glass, scanlines and all */

[data-theme="crt"] {
  color-scheme: dark;
  --paper: #0b0e08;
  --panel: #0f140b;
  --ink: #b6f2a3;
  --soft: #5d8a52;
  --line: #24381d;
  --accent: #56d364;
  --light-sq: #1a2b14;
  --dark-sq: #0d170a;
  --sel: #39512a;
  --check: #e5534b;
}
[data-theme="crt"] body { text-shadow: 0 0 7px rgba(86, 211, 100, .3); }
[data-theme="crt"] body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(0deg, rgba(0, 0, 0, .22) 0 1px, transparent 1px 3px);
}
[data-theme="crt"] .home .logo { text-shadow: 0 0 12px rgba(86, 211, 100, .6); }
[data-theme="crt"] .dot { background: rgba(182, 242, 163, .3); }
[data-theme="crt"] .dot.capture { background: none; border-color: rgba(182, 242, 163, .3); }
[data-theme="crt"] .sq .coord { color: rgba(182, 242, 163, .45); }
[data-theme="crt"] .sq.dark .coord { color: rgba(182, 242, 163, .55); }
[data-theme="crt"] .evalbar { border-color: var(--line); }
[data-theme="crt"] .piece.traditional.w { color: #e8f5e0; }