:root {
  --bg: #1B1714;
  --text: #F4EDE1;
  --muted: #B8AE9F;
  --alert: #FF6B5E;
  --panel: #2A2420;
  --border: #4A3F35;
  --font: "Rubik", "Noto Sans Thai", "Noto Sans SC", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
#titles {
  flex: none;
  position: relative;
  height: 44px;
  overflow: hidden;
  background: var(--bg);
}
#titles-track { position: absolute; inset: 0 auto 0 0; }
#clock {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 16px 0 24px;
  background: linear-gradient(90deg, transparent, var(--bg) 20%);
  color: var(--muted);
  font-size: 14px;
}
#clock a { color: var(--text); font-weight: 600; text-decoration: none; }
#clock a:hover { text-decoration: underline; }
.col-title {
  position: absolute;
  top: 0;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 19px;
  font-weight: 600;
  cursor: grab;
  user-select: none;
  touch-action: none;
  background-size: 100% 100%;
  image-rendering: pixelated;
  text-shadow: 0 1px 0 #000, 0 0 6px rgba(0, 0, 0, 0.8);
}
#titles-track.dragging .col-title { cursor: grabbing; }
.badge.warn { background: #F2A33C; color: #1B1714; }
.badge {
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  border-radius: 10px;
  background: var(--alert);
  color: #fff;
  font-size: 13px;
  line-height: 20px;
  text-align: center;
}
#scroller {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: flex;
  align-items: flex-start;
}
#scroller.fits { justify-content: center; }
/* Always show the horizontal scrollbar (macOS hides overlay scrollbars by default). */
@supports (-moz-appearance: none) { #scroller { scrollbar-color: #6B5A48 #241F1B; } }
#scroller::-webkit-scrollbar { height: 12px; width: 12px; }
#scroller::-webkit-scrollbar-track { background: #241F1B; }
#scroller::-webkit-scrollbar-thumb { background: #6B5A48; border: 2px solid #241F1B; }
#scroller::-webkit-scrollbar-thumb:hover { background: #8A745C; }
#scene { display: block; flex: none; image-rendering: pixelated; touch-action: pan-x pan-y; }
#scene[hidden], #titles[hidden] { display: none; }
/* What a tank holds, next to the cursor while it hovers the tank. */
#tip {
  position: fixed;
  z-index: 9;
  pointer-events: none;
  background: var(--panel);
  border: 2px solid var(--border);
  padding: 4px 8px;
  font-size: 13px;
  white-space: nowrap;
}
#tip[hidden] { display: none; }
#pop {
  position: fixed;
  z-index: 10;
  width: min(360px, calc(100vw - 16px));  /* wide enough for both answer buttons side by side, also in Russian */
  background: var(--panel);
  border: 2px solid var(--border);
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.45;
  /* Several questions can be taller than the screen: the popup scrolls. */
  max-height: calc(100vh - 16px);
  max-height: calc(100dvh - 16px);
  overflow-y: auto;
  overscroll-behavior: contain;
}
#pop p { margin: 8px 0 12px; }
#pop .close {
  position: absolute;
  top: 4px;
  right: 6px;
  width: 28px;
  height: 28px;
  border: 0;
  background: none;
  color: var(--muted);
  font: 22px/1 var(--font);
  cursor: pointer;
}
#pop .close:hover { color: var(--text); }
.pop-title { padding-right: 24px; }
.pop-title { font-size: 16px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.pop-sub { color: var(--muted); margin-top: 4px; }
#pop .pop-note { color: var(--muted); font-size: 13px; margin: -4px 0 12px; }
#pop .pop-note.warn { color: #F2A33C; margin-top: 4px; }
.pop-sub .run, .run-row .run { color: #9FE870; }
.btn {
  display: inline-block;
  margin-top: 4px;
  padding: 6px 12px;
  border: 2px solid var(--border);
  color: var(--text);
  text-decoration: none;
}
.btn:hover { background: #3A322B; }
.btn.primary { background: #D97757; border-color: #D97757; color: #fff; }
#pop textarea {
  width: 100%;
  margin: 0 0 8px;
  padding: 8px;
  background: var(--bg);
  border: 2px solid var(--border);
  color: var(--text);
  font: 14px/1.4 var(--font);
  resize: vertical;
}
#pop textarea:focus { outline: none; border-color: var(--muted); }
#pop button.btn { font: inherit; cursor: pointer; background: none; }
#pop button.btn.primary { background: #D97757; }
#pop button.btn:disabled { opacity: 0.5; cursor: default; }
#pop .ask + .ask { border-top: 1px solid var(--border); margin-top: 10px; padding-top: 4px; }
#pop .ask-buttons { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; }
#pop details.runs { margin-top: 12px; border-top: 1px solid var(--border); padding-top: 8px; font-size: 13px; }
#pop details.runs summary { cursor: pointer; color: var(--muted); }
#pop details.runs summary:hover { color: var(--text); }
#pop .runs-list { margin-top: 6px; max-height: 220px; overflow-y: auto; }
#pop .run-row { display: grid; grid-template-columns: auto auto 1fr; gap: 10px; padding: 3px 0; }
#pop .run-row .at, #pop .run-row .took { color: var(--muted); white-space: nowrap; }
.pop-msg { color: var(--alert); margin-top: 6px; }
#clock .who { margin-left: 4px; }
#clock button { background: none; border: 0; color: var(--muted); font: inherit; cursor: pointer; padding: 0 0 0 10px; text-decoration: underline; }
#clock button:hover { color: var(--text); }

/* No funnels yet: how to connect an agent. */
.connect { margin: 48px auto; max-width: 620px; padding: 0 20px; line-height: 1.55; }
.connect h1 { font-size: 30px; margin: 0 0 8px; }
.connect p { color: var(--muted); margin: 0 0 14px; }
.connect h2 { font-size: 17px; margin: 22px 0 6px; }
.connect code, .connect pre {
  font: 13px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--panel);
  border: 2px solid var(--border);
}
.connect code { padding: 1px 6px; }
.connect pre { padding: 10px 12px; overflow-x: auto; white-space: pre-wrap; overflow-wrap: anywhere; margin: 0 0 8px; }
.connect a { color: #F2C14E; }

/* Site header, the same as on the landing page. */
.sitebar {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  /* The same width as the header on the landing page, as tall as its button. */
  padding: 0 max(20px, calc((100% - 1000px) / 2));
}
.sitebar .logo { font: 400 24px 'Tiny5', monospace; text-transform: uppercase; letter-spacing: -0.04em; text-decoration: none; color: var(--text); }
.sitebar .links { display: flex; align-items: center; gap: 20px; font-size: 15px; }
.sitebar .links a { color: var(--muted); text-decoration: none; white-space: nowrap; }
.sitebar .links a:hover, .sitebar .links a.here { color: var(--text); }
.sitebar .links a.signin { white-space: nowrap; background: #F2C14E; color: #1B1714; font-weight: 600; padding: 6px 16px; line-height: 22px; border: 2px solid #F2C14E; }
.sitebar .links a.signin:hover { background: #FFD866; border-color: #FFD866; }
@media (max-width: 560px) { .sitebar .links { gap: 14px; } .sitebar .links .wide { display: none; } .sitebar .links a.signin { padding: 4px 12px; } }
.sitebar .links a.gh { display: flex; }
.sitebar .logo { display: inline-flex; align-items: center; }
.sitebar .logo .mark { image-rendering: pixelated; margin-right: 8px; }
.copybox { position: relative; margin: 0 0 8px; }
.copybox pre { margin: 0; padding-right: 48px; }
.copybox .copy {
  position: absolute; top: 6px; right: 6px; display: flex; padding: 5px;
  background: var(--panel); border: 2px solid var(--border); color: var(--muted); cursor: pointer;
}
.copybox .copy:hover { border-color: var(--muted); color: var(--text); }
/* A plain scrolling page inside the dashboard layout (connect). */
.page { flex: 1; overflow: auto; display: flex; flex-direction: column; }
.page .connect { width: 100%; box-sizing: border-box; }
/* Site footer, the same as on the landing page: at the end of a page, under the board in the demo. */
.sitefoot {
  flex: none; margin: auto max(20px, calc((100% - 1000px) / 2)) 0; padding: 14px 0 18px;
  border-top: 2px solid var(--border); color: var(--muted); font-size: 14px;
  display: flex; justify-content: space-between; gap: 6px 12px; flex-wrap: wrap;
}
.sitefoot a { color: inherit; }
body > .sitefoot { padding: 10px 0 12px; font-size: 13px; }
.sitebar .refresh {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px;
  background: none; border: 2px solid var(--border); color: var(--text); font: 500 13px var(--font); text-decoration: none; cursor: pointer;
}

.sitebar .refresh:hover { border-color: var(--muted); }

.sitebar .refresh:disabled { opacity: 0.5; cursor: default; }

.sitebar .refresh:disabled svg { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.sitebar .updated { color: var(--muted); font-size: 13px; white-space: nowrap; }
#clock:empty { display: none; }

/* Language picker in the nav. */
.links select.lang { width: 3.9em; background: transparent; color: inherit; border: 1px solid var(--border); font: inherit; font-size: 14px; padding: 3px 2px; cursor: pointer; }
.links select.lang option { background: #241F1B; color: #F4EDE1; }
@media (max-width: 560px) { .sitebar .links a.gh, .links a.gh { display: none; } }
/* The signed-in profile: a round photo (or silhouette) and its menu of rare settings. */
.links .profile { position: relative; display: flex; }
.links .avatar { width: 34px; height: 34px; padding: 0; border-radius: 50%; border: 2px solid var(--border); background: #241F1B; color: #B8AE9F; cursor: pointer; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.links .avatar:hover, .links .avatar[aria-expanded="true"] { border-color: #F2C14E; color: #F4EDE1; }
.links .avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }
.profile-menu { position: absolute; right: 0; top: calc(100% + 8px); z-index: 20; min-width: 260px; background: #241F1B; border: 2px solid var(--border); padding: 12px 14px; display: flex; flex-direction: column; gap: 12px; font-size: 14px; color: #F4EDE1; text-align: left; }
.profile-menu[hidden] { display: none; }
.profile-menu .email { color: #B8AE9F; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-menu .row { display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; }
.profile-menu .row.check { justify-content: flex-start; line-height: 1.35; }
.profile-menu .row.check input { margin: 0; accent-color: #F2C14E; cursor: pointer; flex: none; }
.links .profile-menu select.lang { width: auto; font-size: 14px; padding: 3px 4px; }
.links .profile-menu a.signout { color: #B8AE9F; text-decoration: none; border-top: 1px solid var(--border); padding-top: 10px; }
.links .profile-menu a.signout:hover { color: #F4EDE1; }
/* Rubik has no Vietnamese letters: Vietnamese pages use Be Vietnam Pro, a font of the same shape. */
html:lang(vi) { --font: "Be Vietnam Pro", system-ui, sans-serif; }
/* Japanese: Noto Sans JP before the Chinese font, so kanji take their Japanese shapes. */
html:lang(ja) { --font: "Rubik", "Noto Sans JP", system-ui, sans-serif; }
/* An agent's short reply to the person's answer: a note over its head in the board's own style
   (the popups' dark panel and border, square corners), the text and a ×. */
.agent-note { position: fixed; z-index: 5; transform: translateY(calc(-100% - 6px)); max-width: 210px; background: var(--panel); color: var(--text); border: 2px solid var(--border); font: 500 13px/1.35 var(--font); padding: 6px 24px 7px 10px; pointer-events: auto; }
/* The tail: a small square step down from the border to the agent, pixel style. */
.agent-note::before, .agent-note::after { content: ""; position: absolute; left: var(--tail, 50%); }
.agent-note::before { bottom: -8px; width: 8px; height: 6px; margin-left: -4px; background: var(--border); }
.agent-note::after { bottom: -4px; width: 4px; height: 2px; margin-left: -2px; background: var(--panel); }
.agent-note button { position: absolute; top: 3px; right: 4px; background: none; border: 0; color: var(--muted); font: 16px/1 var(--font); cursor: pointer; padding: 2px 3px; }
.agent-note button:hover { color: var(--text); }
.agent-note[hidden] { display: none; }
/* On a phone the refresh button stays, as an icon only. */
@media (max-width: 560px) { .sitebar .refresh { padding: 4px 7px; } }

/* The pickaxe striking a rock, centred while the board loads. Appears only if loading takes a
   moment, and goes once the board is drawn (body.ready). */
.loader {
  position: fixed; inset: 0; display: flex; align-items: center; justify-content: center;
  pointer-events: none; opacity: 0; animation: loader-in 0.2s 0.25s forwards;
}
body.ready .loader { display: none; }
@keyframes loader-in { to { opacity: 1; } }
.loader svg { image-rendering: pixelated; }
.loader .pick { transform-origin: 13.5px 13.5px; animation: pick-swing 0.6s steps(1) infinite; }
.loader .spark { opacity: 0; animation: pick-spark 0.6s steps(1) infinite; }
/* Two pixel frames, as on the board: raised, then down on the rock with sparks. */
@keyframes pick-swing { 0% { transform: rotate(-90deg); } 50% { transform: none; } }
@keyframes pick-spark { 50% { opacity: 1; } 80% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .loader .pick, .loader .spark { animation: none; } }