:root {
  --bg: #f4f1ea;
  --fg: #1f1b16;
  --accent: #8f3b1b;
  --accent-soft: #dbc8be;
  --panel: #fffdfa;
  --border: #d9cfc3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 20% 0%, #fff7ee, var(--bg) 55%);
  color: var(--fg);
  font-family: "Noto Serif SC", "Songti SC", "STSong", serif;
}

body.screen-locked {
  overflow: hidden;
}

.container {
  width: min(900px, 94vw);
  margin: 2rem auto;
  display: grid;
  gap: 1rem;
}

h1,
h2 {
  margin: 0 0 0.5rem;
}

.subtitle {
  margin: 0;
  color: #5d5145;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

label {
  display: block;
  margin-top: 0.75rem;
  margin-bottom: 0.35rem;
  font-weight: 600;
}

textarea,
input {
  width: 100%;
  border: 1px solid #ccbfae;
  border-radius: 8px;
  padding: 0.65rem 0.7rem;
  background: #fff;
  color: var(--fg);
  font-size: 1rem;
}

.actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

button {
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  padding: 0.65rem 1rem;
  font-size: 0.95rem;
  cursor: pointer;
}

button.secondary {
  background: #5e5449;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.entropy-row {
  margin-top: 0.75rem;
  display: grid;
  gap: 0.6rem;
}

.entropy-title {
  font-weight: 700;
}

.entropy-text {
  color: #6f6458;
  font-size: 0.95rem;
}

.entropy-bar-wrap {
  height: 10px;
  width: 100%;
  background: #ece2d6;
  border-radius: 999px;
  overflow: hidden;
}

.entropy-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #b06b40, #8f3b1b);
  transition: width 180ms ease-out;
}

.line-grid {
  display: grid;
  gap: 0.35rem;
  margin: 0.75rem 0;
}

.yao {
  font-size: 1rem;
}

.muted {
  color: #716457;
}

pre {
  white-space: pre-wrap;
  background: #f8f2e9;
  border: 1px solid #e6d7c5;
  border-radius: 8px;
  padding: 0.75rem;
  line-height: 1.45;
}

#interpretText {
  white-space: pre-wrap;
  line-height: 1.75;
  font-size: 1.02rem;
  word-break: break-word;
}

summary {
  cursor: pointer;
  font-weight: 700;
}

.rules-text {
  margin-top: 0.6rem;
  color: #4f4338;
}

.rules-text p {
  margin: 0 0 0.45rem;
}

.rules-text ol {
  margin: 0;
  padding-left: 1.2rem;
}

.rules-text ul {
  margin: 0.35rem 0 0;
  padding-left: 1.2rem;
}

.question-guide {
  margin-top: 0.6rem;
  padding: 0.65rem 0.75rem;
  background: #f8f1e7;
  border: 1px solid #e5d6c4;
  border-radius: 8px;
  color: #4f4338;
}

.question-guide p {
  margin: 0 0 0.35rem;
}

.question-guide ol {
  margin: 0 0 0.35rem;
  padding-left: 1.2rem;
}

.focus-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(28, 21, 14, 0.62);
  display: grid;
  place-items: center;
  padding: 1rem;
}

.focus-overlay[hidden] {
  display: none;
}

.focus-card {
  width: min(760px, 94vw);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
}

.focus-question {
  margin: 0.75rem 0;
  padding: 0.75rem;
  border: 1px solid #dfcfba;
  border-radius: 8px;
  background: #f9f2e8;
  line-height: 1.7;
  font-size: 1.06rem;
}

.history-list {
  display: grid;
  gap: 0.7rem;
}

.history-item {
  border: 1px solid #dfd3c6;
  border-radius: 8px;
  padding: 0.7rem;
  background: #fcf8f2;
}

.history-meta {
  color: #7a6e61;
  font-size: 0.85rem;
}

.history-question {
  margin-top: 0.35rem;
  font-weight: 700;
  line-height: 1.45;
}

.history-brief {
  margin-top: 0.35rem;
  color: #5f5346;
  line-height: 1.45;
}

.history-open {
  margin-top: 0.55rem;
}

@media (max-width: 640px) {
  .container {
    margin: 1rem auto;
  }

  .panel {
    padding: 0.85rem;
  }
}