:root {
  --bg:        #0a0c0d;
  --bg-elev:   #11141a;
  --bg-soft:   #161a22;
  --ink:       #c8d3cf;
  --ink-bright:#e8f0ec;
  --muted:     #5e6b6c;
  --line:      #1f2530;
  --accent:    #7af5b3;   /* phosphor green */
  --hot:       #f08a5d;   /* warning amber */
  --leak:      #ff5572;   /* leak red */
  --ok:        #7af5b3;
  --warn:      #f0d35d;
  --bad:       #ff5572;
  --control-radius: var(--radius-sm, 2px);
  --game-focus: var(--border-focus, var(--accent));
  --mono: var(--font-mono, ui-monospace, 'JetBrains Mono', 'SF Mono', Menlo, 'DejaVu Sans Mono', Consolas, monospace);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.55;
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
}
body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(255,255,255,0.012) 0px,
      rgba(255,255,255,0.012) 1px,
      transparent 1px,
      transparent 3px
    );
}

a { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--line); }
a:hover { color: var(--ink-bright); border-bottom-color: var(--accent); }

header {
  padding: 1rem 1.25rem 0.6rem;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  align-items: baseline;
  justify-content: space-between;
}
.brand {
  color: var(--ink-bright);
  letter-spacing: 0.18em;
  font-size: 0.85rem;
}
.meta {
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

main {
  flex: 1;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2rem;
}

footer {
  padding: 1rem 1.25rem 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.72rem;
  text-align: center;
  letter-spacing: 0.04em;
}

.screen { display: none; }
.screen.active { display: block; animation: scanin 0.3s ease; }

@keyframes scanin {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}

.panel {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  padding: 1.25rem 1.25rem 1.5rem;
  border-radius: 2px;
}

.ascii {
  color: var(--accent);
  font-size: 0.78rem;
  line-height: 1.05;
  margin: 0 0 1rem;
  white-space: pre;
  overflow-x: auto;
  text-shadow: 0 0 6px rgba(122,245,179,0.18);
}

.line {
  margin: 0.4rem 0;
  font-size: 0.93rem;
}
.line.dim   { color: var(--muted); }
.line.small { font-size: 0.78rem; }
.hot   { color: var(--hot); }

.proxy-status {
  margin: 1rem 0 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.78rem;
  border-left: 2px solid var(--muted);
  background: var(--bg-soft);
  color: var(--muted);
  letter-spacing: 0.02em;
}
.proxy-status code {
  font: inherit;
  color: var(--ink-bright);
}
.proxy-status.ok   { border-left-color: var(--ok);   color: var(--ok);   }
.proxy-status.warn { border-left-color: var(--warn); color: var(--warn); }
.proxy-status.bad  { border-left-color: var(--bad);  color: var(--bad);  }

.select-row { margin: 1.5rem 0 1rem; }
.doc-picker {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.4rem;
  margin-top: 0.5rem;
}
.doc-option {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--ink);
  padding: 0.7rem 0.9rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.12s, background 0.12s, color 0.12s;
}
.doc-option:hover {
  border-color: var(--accent);
  color: var(--ink-bright);
}
.doc-option.selected {
  border-color: var(--accent);
  background: rgba(122,245,179,0.06);
  color: var(--ink-bright);
}
.doc-option .title {
  display: block;
  color: var(--accent);
  margin-bottom: 0.15rem;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
}
.doc-option .seed {
  color: var(--hot);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  margin-left: 0.4rem;
}

.probe-shelf {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0 0.7rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid var(--line);
  background: rgba(122,245,179,0.035);
}
.probe-label {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
}
.probe-chip {
  margin: 0;
  padding: 0.42rem 0.62rem;
  border-color: rgba(122,245,179,0.38);
  color: var(--ink);
  background: var(--bg-soft);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}
.probe-chip:hover {
  border-color: var(--accent);
  color: var(--ink-bright);
  background: rgba(122,245,179,0.08);
}

button {
  display: inline-block;
  margin-top: 1.25rem;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  padding: 0.7rem 1.2rem;
  cursor: pointer;
  border-radius: 2px;
  transition: background 0.12s, color 0.12s;
}
button.primary:hover {
  background: var(--accent);
  color: var(--bg);
}
button.primary:disabled { opacity: 0.4; cursor: not-allowed; }
button.small { padding: 0.55rem 0.9rem; font-size: 0.78rem; margin: 0; }
button.ghost {
  border-color: var(--line);
  color: var(--muted);
}
button.ghost:hover { color: var(--ink); border-color: var(--muted); }
button:focus-visible { outline: 1px solid var(--game-focus); outline-offset: 2px; }

/* HUD */
.hud {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 1rem;
}
.hud-cell {
  background: var(--bg-elev);
  padding: 0.55rem 0.8rem;
  font-size: 0.85rem;
  color: var(--ink-bright);
}
.hud-cell .lbl {
  display: block;
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  margin-bottom: 0.15rem;
}

/* transcript */
.transcript {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1rem;
  min-height: 6rem;
}
.bubble {
  border: 1px solid var(--line);
  background: var(--bg-elev);
  padding: 0.7rem 0.95rem;
  font-size: 0.9rem;
  line-height: 1.55;
  animation: scanin 0.25s ease;
  border-radius: var(--control-radius);
  white-space: pre-wrap;
  word-wrap: break-word;
}
.bubble .who {
  display: block;
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 0.3rem;
}
.bubble.you .who { color: var(--hot); }
.bubble.llm .who { color: var(--accent); }
.bubble.sys .who { color: var(--muted); }
.bubble.you { border-left: 2px solid var(--hot); }
.bubble.llm { border-left: 2px solid var(--accent); }
.bubble.sys {
  border-left: 2px solid var(--muted);
  background: var(--bg-soft);
  color: var(--muted);
  font-size: 0.82rem;
}
.bubble .leak-bar {
  margin-top: 0.55rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--line);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.bubble .leak-bar.fired { color: var(--leak); }

.src-tag {
  display: inline-block;
  margin-left: 0.55rem;
  padding: 0 0.4rem;
  border: 1px solid var(--line);
  border-radius: var(--control-radius);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: lowercase;
}
.src-tag.live     { color: var(--ok);  border-color: rgba(122,245,179,0.3); }
.src-tag.fallback { color: var(--warn); border-color: rgba(240,211,93,0.3); }

mark.leak {
  background: rgba(255,85,114,0.18);
  color: var(--leak);
  padding: 1px 3px;
  border-radius: var(--control-radius);
  border: 1px solid rgba(255,85,114,0.4);
  font-weight: 600;
}

/* input */
.input-form {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  border: 1px solid var(--line);
  background: var(--bg-elev);
  padding: 0.35rem 0.55rem;
  border-radius: var(--control-radius);
}
.input-form:focus-within { border-color: var(--accent); }
.prompt-prefix {
  color: var(--accent);
  white-space: nowrap;
  align-self: center;
  font-size: 0.82rem;
}
.input-form input {
  flex: 1;
  background: transparent;
  color: var(--ink-bright);
  border: none;
  font: inherit;
  font-size: 0.92rem;
  padding: 0.55rem 0.4rem;
  outline: none;
}
.input-form input::placeholder { color: var(--muted); }

.status {
  margin-top: 0.5rem;
  min-height: 1.4em;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
  letter-spacing: 0.04em;
}

#finish {
  display: block;
  margin: 1rem auto 0;
}

/* reveal */
.reveal-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1.25rem 0;
}
.reveal-block { margin: 1.25rem 0; }
.reveal-block .lbl {
  display: block;
  color: var(--muted);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  margin-bottom: 0.4rem;
}
.doc-box {
  background: var(--bg);
  border: 1px solid var(--line);
  padding: 0.85rem 1rem;
  font-size: 0.82rem;
  line-height: 1.55;
  white-space: pre-wrap;
  word-wrap: break-word;
  border-radius: 2px;
  max-height: 30rem;
  overflow-y: auto;
}
.qa { margin-bottom: 0.85rem; padding-bottom: 0.6rem; border-bottom: 1px dashed var(--line); }
.qa:last-child { border-bottom: none; }
.qa .q { color: var(--hot); margin-bottom: 0.3rem; }
.qa .a { color: var(--ink-bright); margin-bottom: 0.3rem; }
.qa .dim { color: var(--muted); font-size: 0.75rem; }

.score-list, .leak-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.score-list li {
  display: flex;
  justify-content: space-between;
  padding: 0.4rem 0.2rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.85rem;
}
.score-list li:last-child { border-bottom: none; }
.score-list li.total {
  color: var(--ink-bright);
  font-weight: 700;
  border-top: 1px solid var(--accent);
  border-bottom: none;
  margin-top: 0.25rem;
  padding-top: 0.65rem;
}
.score-list li .num { color: var(--accent); }

@media (max-width: 720px) {
  .reveal-cols { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .hud { grid-template-columns: 1fr 1fr; }
  .ascii { font-size: 0.62rem; }
  .input-form { flex-wrap: wrap; }
  .prompt-prefix { font-size: 0.75rem; }
}