.page { padding: 40px 20px; max-width: 1200px; margin: 0 auto; }
.page h1 { font-size: 26px; font-weight: 700; color: #fff; margin-bottom: 6px; }
.page .subtitle { color: #888; margin-bottom: 20px; font-size: 14px; }

label {
  display: block; font-size: 13px; font-weight: 600; color: #aaa;
  margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px;
}

.actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.btn {
  padding: 9px 16px; background: #141414; border: 1px solid #2a2a2a;
  color: #ccc; border-radius: 6px; font-size: 13px; cursor: pointer;
  transition: all 0.15s; font-family: inherit;
}
.btn:hover { border-color: #ff4444; color: #fff; background: #1f1f1f; }
.btn-reset { margin-left: auto; }
.btn-reset:hover { border-color: #f87171; color: #f87171; }

.options {
  display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 16px;
  padding: 12px 16px; background: #0f0f0f; border: 1px solid #262626; border-radius: 10px;
  align-items: flex-end;
}
.opt { display: flex; flex-direction: column; gap: 4px; }
.opt label { font-size: 11px; color: #888; margin: 0; }
.opt select, .opt input[type="text"] {
  background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 6px;
  color: #e1e1e1; padding: 6px 10px; font-size: 13px; font-family: inherit; outline: none;
}
.opt.chks { flex-direction: row; align-items: center; }
.chk { display: inline-flex; align-items: center; gap: 6px; color: #bbb; font-size: 12px; cursor: pointer; margin: 0; text-transform: none; letter-spacing: 0; font-weight: 500; }
.chk input { accent-color: #ff4444; width: 14px; height: 14px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.col { display: flex; flex-direction: column; }

textarea {
  width: 100%; min-height: 400px; resize: vertical;
  background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 8px;
  color: #e1e1e1; font-size: 13px; padding: 14px; outline: none;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  line-height: 1.5; transition: border-color 0.2s; tab-size: 2;
}
textarea:focus { border-color: #ff4444; }
#output { background: #0a0a0a; }

.stats { color: #666; font-size: 12px; margin-top: 6px; font-family: 'SF Mono', Monaco, monospace; text-transform: none; letter-spacing: 0; font-weight: 500; }

.error-box {
  margin-top: 16px; padding: 14px 18px; background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.3); border-radius: 8px;
  color: #f87171; font-size: 13px; font-family: 'SF Mono', Monaco, monospace;
}
.success-box {
  margin-top: 16px; padding: 10px 16px; background: rgba(74, 222, 128, 0.08);
  border: 1px solid rgba(74, 222, 128, 0.2); border-radius: 8px;
  color: #4ade80; font-size: 13px;
}

@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
  textarea { min-height: 260px; }
  .btn-reset { margin-left: 0; }
}