.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-primary-act { background: #cc0000; border-color: #cc0000; color: #fff; }
.btn-primary-act:hover { background: #ff1a1a; border-color: #ff1a1a; color: #fff; }
.btn-reset { margin-left: auto; }
.btn-reset:hover { border-color: #f87171; color: #f87171; }

.controls { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 16px; }
.toggle {
  display: inline-flex; align-items: center; gap: 8px;
  cursor: pointer; font-size: 13px; color: #bbb;
  text-transform: none; letter-spacing: normal; font-weight: 500;
  margin-bottom: 0;
}
.toggle input { accent-color: #ff4444; }

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

textarea {
  width: 100%; min-height: 300px; 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; }

.col-err {
  color: #f87171; font-size: 12px; margin-top: 6px;
  font-family: 'SF Mono', Monaco, monospace; min-height: 16px;
}

.output-wrap { margin-top: 24px; }

.stats-bar {
  background: #141414; border: 1px solid #262626; border-radius: 10px;
  padding: 14px 18px; color: #ccc;
  font-family: 'SF Mono', Monaco, monospace; font-size: 13px;
  display: flex; flex-wrap: wrap; gap: 18px; align-items: center;
}
.stats-bar .pill { display: inline-flex; align-items: center; gap: 6px; }
.stats-bar .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.pill.added .dot { background: #4ade80; }
.pill.removed .dot { background: #f87171; }
.pill.changed .dot { background: #fbbf24; }
.pill.unchanged .dot { background: #555; }

.diff-actions { display: flex; gap: 6px; margin: 10px 0; justify-content: flex-end; }
.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; }

.diff-list {
  background: #0d0d0d; border: 1px solid #262626; border-radius: 10px;
  padding: 10px; max-height: 600px; overflow-y: auto;
  font-family: 'SF Mono', Monaco, monospace; font-size: 13px;
}

.diff-row {
  display: grid; grid-template-columns: 22px 1fr; gap: 10px;
  padding: 7px 10px; border-radius: 6px; margin-bottom: 2px;
  align-items: start;
}
.diff-row .sign { font-weight: 700; }
.diff-row .body { word-break: break-all; white-space: pre-wrap; }
.diff-row .path { color: #888; font-weight: 600; }
.diff-row .val { color: #ccc; }
.diff-row .arrow { color: #666; padding: 0 6px; }

.diff-row.added { background: rgba(74, 222, 128, 0.06); }
.diff-row.added .sign, .diff-row.added .val { color: #4ade80; }
.diff-row.removed { background: rgba(248, 113, 113, 0.06); }
.diff-row.removed .sign, .diff-row.removed .val { color: #f87171; }
.diff-row.changed { background: rgba(251, 191, 36, 0.06); }
.diff-row.changed .sign { color: #fbbf24; }
.diff-row.changed .val-old { color: #f87171; }
.diff-row.changed .val-new { color: #4ade80; }
.diff-row.unchanged { opacity: 0.55; }
.diff-row.unchanged .sign { color: #666; }

.empty-msg { padding: 30px; text-align: center; color: #666; }

@media (max-width: 800px) {
  .grid { grid-template-columns: 1fr; }
  textarea { min-height: 200px; }
  .btn-reset { margin-left: 0; }
}