.page { padding: 40px 20px; max-width: 900px; margin: 0 auto; }
.page h1 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.page .subtitle { color: #888; margin-bottom: 24px; font-size: 14px; }

label {
  display: block; font-size: 13px; font-weight: 600; color: #aaa;
  margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.5px;
}

textarea {
  width: 100%; min-height: 120px; resize: vertical;
  background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 10px;
  color: #e1e1e1; font-size: 14px; padding: 14px; outline: none;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  line-height: 1.5; transition: border-color 0.2s;
}
textarea:focus { border-color: #ff4444; }
#output { background: #0a0a0a; min-height: 120px; }

.io-wrap { margin-bottom: 18px; }
.stats-row { display: flex; justify-content: space-between; align-items: center; margin-top: 6px; }
.stats { color: #666; font-size: 12px; font-family: 'SF Mono', Monaco, monospace; text-transform: none; letter-spacing: 0; font-weight: 500; }
.small-actions { display: flex; gap: 6px; }
.small-btn {
  padding: 5px 12px; background: transparent; border: 1px solid #333;
  color: #aaa; border-radius: 4px; font-size: 12px; cursor: pointer; transition: all 0.15s;
  font-family: inherit;
}
.small-btn:hover { border-color: #ff4444; color: #fff; }
.small-btn.copied { color: #4ade80; border-color: #4ade80; }

.ops {
  background: #0f0f0f; border: 1px solid #262626; border-radius: 12px;
  padding: 16px; margin-bottom: 18px;
}
.op-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.op-pill {
  padding: 7px 12px; background: transparent; border: 1px solid #2a2a2a;
  color: #bbb; border-radius: 999px; font-size: 12px; font-weight: 600;
  cursor: pointer; font-family: inherit; transition: all 0.15s;
}
.op-pill:hover { color: #fff; border-color: #444; }
.op-pill.active { background: #ff4444; color: #fff; border-color: #ff4444; }

.op-panel { display: none; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.op-panel.active { display: flex; }

.field { display: flex; flex-direction: column; min-width: 120px; flex: 1; }
.field label { font-size: 11px; color: #888; margin-bottom: 4px; text-transform: none; letter-spacing: 0; }
.field input[type="text"], .field input[type="number"] {
  background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 6px;
  color: #e1e1e1; padding: 8px 10px; font-size: 13px; outline: none;
  font-family: 'SF Mono', Monaco, monospace;
}
.field input:focus { border-color: #ff4444; }

.chk-row { flex-direction: row !important; gap: 14px; flex-wrap: wrap; align-items: center; flex: 1 0 100%; }
.chk { display: inline-flex; align-items: center; gap: 6px; color: #bbb; font-size: 12px; cursor: pointer; text-transform: none; letter-spacing: 0; margin: 0; font-weight: 500; }
.chk input { accent-color: #ff4444; width: 14px; height: 14px; }

.seg {
  display: inline-flex; background: #141414; border: 1px solid #2a2a2a;
  border-radius: 6px; padding: 2px; gap: 2px;
}
.seg-btn {
  padding: 5px 10px; background: transparent; border: none; color: #aaa;
  border-radius: 4px; font-size: 12px; font-weight: 600; cursor: pointer;
  font-family: inherit;
}
.seg-btn:hover { color: #fff; }
.seg-btn.active { background: #2a2a2a; color: #fff; }

.hint { flex: 1 0 100%; color: #666; font-size: 12px; }
.hint code { background: #1a1a1a; color: #ff4444; padding: 1px 5px; border-radius: 3px; font-size: 11px; }

.count-results {
  flex: 1 0 100%; margin-top: 8px;
  background: #0a0a0a; border: 1px solid #1f1f1f; border-radius: 8px;
  padding: 12px; font-family: 'SF Mono', Monaco, monospace;
  font-size: 13px; color: #ccc;
}
.count-results strong { color: #ff4444; }
.count-results .muted { color: #666; font-size: 12px; }

@media (max-width: 800px) {
  .field { flex: 1 0 45%; }
  textarea { min-height: 100px; }
}