/* 1A2B 猜数字 guess-number-ab */
:root {
  --gab-green: #059669;
  --gab-green-dark: #047857;
  --gab-green-soft: #ecfdf5;
  --gab-red: #dc2626;
  --gab-red-soft: #fef2f2;
  --gab-amber: #d97706;
  --gab-amber-soft: #fffbeb;
  --gab-ink: #0f172a;
  --gab-muted: #64748b;
  --gab-line: #e2e8f0;
}

/* ---------- 输入 ---------- */
.gab-input {
  width: 100%;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 28px;
  letter-spacing: 14px;
  text-align: center;
  font-weight: 700;
  color: var(--gab-ink);
  padding: 14px 12px 14px 26px; /* 右补偿 letter-spacing 居中 */
  border: 2px solid var(--gab-line);
  border-radius: 12px;
  background: #fff;
  transition: border-color .15s, box-shadow .15s;
}
.gab-input:focus {
  outline: none;
  border-color: var(--gab-green);
  box-shadow: 0 0 0 4px rgba(5, 150, 105, .12);
}
.gab-input:disabled {
  background: #f8fafc;
  color: var(--gab-muted);
  cursor: not-allowed;
}

.gab-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.gab-actions .btn { flex: 1; }
.btn-gab-hint {
  background: var(--gab-amber-soft);
  color: var(--gab-amber);
  border: 1px solid #fde68a;
}
.btn-gab-hint:hover { background: #fef3c7; }
.btn-gab-hint:disabled { opacity: .55; cursor: not-allowed; }
.btn-gab-giveup {
  background: var(--gab-red-soft);
  color: var(--gab-red);
  border: 1px solid #fecaca;
}
.btn-gab-giveup:hover { background: #fee2e2; }
.btn-gab-giveup:disabled { opacity: .55; cursor: not-allowed; }

.gab-rule {
  margin-top: 14px;
  padding: 12px 14px;
  background: var(--gab-green-soft);
  border: 1px solid #a7f3d0;
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.9;
  color: #065f46;
}
.gab-rule b { color: var(--gab-green-dark); }
.gab-rule code {
  background: #d1fae5;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
}

.gab-error {
  margin-bottom: 14px;
  padding: 10px 14px;
  background: var(--gab-red-soft);
  border: 1px solid #fecaca;
  color: var(--gab-red);
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
}
.gab-error.gab-tip {
  background: var(--gab-amber-soft);
  border-color: #fde68a;
  color: var(--gab-amber);
}

/* ---------- 游戏面板 ---------- */
.gab-panel {
  background: #fff;
  border: 1px solid var(--gab-line);
  border-radius: 16px;
  padding: 18px;
  box-shadow: 0 6px 24px rgba(15, 23, 42, .05);
}
.gab-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.gab-metrics {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.gab-metric {
  background: #f8fafc;
  border: 1px solid var(--gab-line);
  border-radius: 10px;
  padding: 6px 12px;
  font-size: 13px;
  color: var(--gab-muted);
}
.gab-metric b {
  color: var(--gab-green-dark);
  font-size: 16px;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  margin-left: 4px;
}
.gab-stat {
  font-size: 12px;
  color: var(--gab-muted);
  background: var(--gab-green-soft);
  border: 1px solid #a7f3d0;
  border-radius: 10px;
  padding: 6px 12px;
}

/* 密码位 */
.gab-slots {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 6px 0 16px;
}
.gab-slot {
  width: 56px;
  height: 64px;
  border-radius: 12px;
  border: 2px dashed #cbd5e1;
  background: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 30px;
  font-weight: 800;
  color: #94a3b8;
  transition: all .2s;
}
.gab-slot-known {
  border-style: solid;
  border-color: var(--gab-green);
  background: var(--gab-green-soft);
  color: var(--gab-green-dark);
  box-shadow: 0 4px 12px rgba(5, 150, 105, .18);
}
.gab-slot-flash {
  animation: gab-pop .5s ease;
}
@keyframes gab-pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

/* 历史 */
.gab-history-head {
  font-size: 13px;
  font-weight: 700;
  color: var(--gab-muted);
  margin: 4px 0 8px;
  letter-spacing: 1px;
}
.gab-history {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 340px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.gab-h-empty {
  text-align: center;
  color: #94a3b8;
  font-size: 14px;
  padding: 26px 0;
}
.gab-h-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: #f8fafc;
  border: 1px solid var(--gab-line);
  border-radius: 10px;
}
.gab-h-row-alt { background: #fff; }
.gab-h-no {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 12px;
  color: #94a3b8;
  width: 30px;
  flex: none;
}
.gab-h-guess {
  display: flex;
  gap: 6px;
  flex: 1;
}
.gab-h-d {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-weight: 700;
  font-size: 17px;
  background: #fff;
  border: 1px solid var(--gab-line);
  border-radius: 8px;
  color: var(--gab-ink);
}
.gab-h-ab {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 16px;
  flex: none;
}
.gab-a { color: var(--gab-green); }
.gab-b { color: var(--gab-amber); }
.gab-h-win {
  background: var(--gab-green-soft);
  border-color: var(--gab-green);
}
.gab-h-win .gab-h-d {
  background: #fff;
  border-color: var(--gab-green);
  color: var(--gab-green-dark);
}

/* 结算横幅 */
.gab-banner {
  margin-top: 16px;
  padding: 18px;
  border-radius: 14px;
  font-size: 16px;
  line-height: 1.8;
  text-align: center;
}
.gab-banner b { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 18px; }
.gab-banner-win {
  background: var(--gab-green-soft);
  border: 2px solid var(--gab-green);
  color: var(--gab-green-dark);
}
.gab-banner-lose {
  background: var(--gab-red-soft);
  border: 2px solid #fca5a5;
  color: #991b1b;
}
.gab-again { margin-top: 12px; min-width: 150px; }

/* ---------- 暗色 ---------- */
@media (prefers-color-scheme: dark) {
  :root {
    --gab-ink: #e2e8f0;
    --gab-muted: #94a3b8;
    --gab-line: #334155;
  }
  .gab-input { background: #1e293b; border-color: #475569; color: #f1f5f9; }
  .gab-input:disabled { background: #0f172a; }
  .gab-panel { background: #1e293b; border-color: #334155; }
  .gab-metric { background: #0f172a; border-color: #334155; }
  .gab-slot { background: #0f172a; border-color: #475569; color: #64748b; }
  .gab-h-row { background: #0f172a; border-color: #334155; }
  .gab-h-row-alt { background: #1e293b; }
  .gab-h-d { background: #1e293b; border-color: #475569; color: #e2e8f0; }
  .gab-rule { background: rgba(5, 150, 105, .12); border-color: rgba(5, 150, 105, .4); color: #6ee7b7; }
  .gab-rule code { background: rgba(5, 150, 105, .25); }
  .gab-stat { background: rgba(5, 150, 105, .12); border-color: rgba(5, 150, 105, .4); color: #6ee7b7; }
  .gab-h-win { background: rgba(5, 150, 105, .15); }
  .gab-h-win .gab-h-d { background: #0f172a; }
}

/* ---------- 窄屏 ---------- */
@media (max-width: 620px) {
  .gab-input { font-size: 22px; letter-spacing: 10px; padding-left: 18px; }
  .gab-slot { width: 44px; height: 52px; font-size: 24px; }
  .gab-actions { flex-direction: column; }
  .gab-h-d { width: 28px; height: 28px; font-size: 14px; }
  .gab-h-row { gap: 8px; padding: 8px 10px; }
}