:root {
  --bg: #f2efe6;
  --fg: #14110f;
  --dim: #6f6a5f;
  --accent: #ff1e79;   /* magenta — clanker / hot */
  --good: #00a6c4;     /* cyan — human */
  --line: #d8d3c4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--fg);
  font-family: "Azeret Mono", ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 16px;
  line-height: 1.6;
  /* graph-paper grid */
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
}

main {
  flex: 1;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 7vh 24px 40px;
}

footer { padding: 16px 24px; text-align: center; }
footer a { color: var(--dim); font-size: 12px; text-decoration: none; }
footer a:hover { color: var(--accent); }

/* ---- shared type ---- */

.tag {
  display: inline-block;
  border: 1px solid var(--fg);
  padding: 3px 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 22px;
}

.title {
  font-family: "Orbitron", sans-serif;
  font-weight: 900;
  text-transform: uppercase;
  font-size: clamp(30px, 8.5vw, 54px);
  line-height: 1.08;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  text-shadow: 3px 0 var(--good), -3px 0 var(--accent);
}
.sub { color: var(--accent); margin: 0 0 20px; font-size: 15px; }

.accent { color: var(--accent); font-weight: 600; }
.good { color: var(--good); font-weight: 600; }
.fine { color: var(--dim); font-size: 12px; }
.demo {
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 10px 14px;
  font-size: 13px;
  line-height: 1.5;
}
.err { color: var(--accent); font-size: 13px; }

/* ---- buttons ---- */

button {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--fg);
  padding: 11px 24px;
  font: inherit;
  cursor: pointer;
  margin-top: 12px;
}
button:hover { background: var(--fg); color: var(--bg); }

button.big {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--accent);
  color: #fff;
  border: none;
  font-size: 16px;
  padding: 15px 30px;
  box-shadow: 6px 6px 0 var(--fg);
}
button.big:hover { background: var(--fg); box-shadow: 6px 6px 0 var(--accent); color: #fff; }

/* ---- quiz ---- */

.progress { color: var(--dim); font-size: 13px; letter-spacing: 0.05em; }

.prompt {
  font-size: clamp(22px, 4vw, 30px);
  line-height: 1.4;
  margin: 24px 0 8px;
}
.cursor { color: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

#quiz-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  border-bottom: 2px solid var(--dim);
  color: var(--fg);
  font: inherit;
  font-size: 20px;
  padding: 12px 10px;
  outline: none;
}
#quiz-input:focus { border-bottom-color: var(--accent); }

.scorebar {
  height: 12px;
  border: 1px solid var(--fg);
  margin: 24px 0 8px;
  background: rgba(255, 255, 255, 0.4);
}
#scorebar-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 0.4s ease;
}

/* ---- results ---- */

.verdict-num {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  font-size: clamp(24px, 5.5vw, 36px);
  line-height: 1.2;
  margin: 8px 0 0;
}
.verdict-num .accent { font-size: 1.5em; font-weight: 900; }
.verdict { color: var(--dim); margin-top: 6px; }

.model-row { margin: 14px 0; }
.model-row .head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
}
.model-row .head .kl { color: var(--dim); font-size: 12px; white-space: nowrap; }
.model-row .bar {
  height: 10px;
  border: 1px solid var(--fg);
  margin-top: 5px;
  background: rgba(255, 255, 255, 0.4);
}
.model-row .bar > div {
  height: 100%;
  background: linear-gradient(90deg, var(--good), var(--accent));
}

.detail {
  border-left: 3px solid var(--line);
  padding-left: 12px;
  margin: 16px 0;
  font-size: 14px;
}
.detail .q { color: var(--dim); }

.row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---- share heat grid (green = human, red = clanker) ---- */
#res-grid { margin: 22px 0 10px; display: flex; flex-direction: column; gap: 5px; }
.grid-row { display: flex; gap: 5px; }
.cell {
  width: 26px;
  height: 26px;
  border-radius: 5px;
  background: #d8d3c4;
}
.cell.l0 { background: #e5484d; } /* red — clanker */
.cell.l1 { background: #ef8f3c; } /* orange */
.cell.l2 { background: #e9c62c; } /* yellow */
.cell.l3 { background: #5ac85a; } /* green — human */
.cell.lx { background: #d8d3c4; } /* no data */
#grid-legend { margin-top: 0; }

h2.section {
  margin: 34px 0 4px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--dim);
  letter-spacing: 0.08em;
}
#res-models { margin-top: 14px; }
#res-method { margin-top: 40px; }

@media (max-width: 430px) {
  .cell { width: 22px; height: 22px; }
}

h2 {
  font-family: "Orbitron", sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(18px, 4vw, 24px);
  letter-spacing: 0.02em;
}

@media (max-width: 430px) {
  main { padding: 5vh 20px 32px; }
  .tag { margin-bottom: 16px; }
  .title { margin-bottom: 10px; }
}