.mod-head { padding: 40px 0 24px; max-width: 720px; }
.back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; color: var(--muted-foreground); text-decoration: none; margin-bottom: 16px;
}
.back:hover { color: var(--foreground); }
.mod-head h1 { font-size: 30px; font-weight: 500; letter-spacing: -.015em; margin: 0 0 10px; }
.mod-head p { margin: 0 0 16px; color: var(--muted-foreground); font-size: 16px; }

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--card-glass); border: 1px solid var(--border); border-radius: 999px;
  padding: 6px 14px 6px 11px; font-size: 13px;
  box-shadow: var(--shadow-soft);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); position: relative; }
.dot::after {
  content: ''; position: absolute; inset: -4px; border-radius: 50%;
  border: 1px solid var(--primary); opacity: .35; animation: ping 2.6s ease-out infinite;
}
@keyframes ping { 0% { transform: scale(.6); opacity: .5 } 70% { transform: scale(1.5); opacity: 0 } 100% { opacity: 0 } }

.inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.slot {
  background: var(--card-glass); border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px); overflow: hidden; display: flex; flex-direction: column; min-height: 240px;
}
.slot-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 11px 15px; border-bottom: 1px solid var(--border);
}
.slot-label { font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--muted-foreground); }
.slot-file { font-size: 13px; max-width: 210px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.drop { flex: 1; display: flex; }
.drop.over { background: var(--primary-soft); outline: 2px dashed var(--primary); outline-offset: -8px; }
.drop textarea {
  flex: 1; width: 100%; border: 0; resize: none; padding: 14px;
  font-family: var(--font-base); font-size: 14.5px; line-height: 1.62;
  color: var(--foreground); background: transparent;
}
.drop-hint {
  padding: 9px 15px; border-top: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  font-size: 12.5px; color: var(--muted-foreground);
}
.linkbtn {
  background: none; border: 0; padding: 0; color: var(--primary); font: inherit; font-size: 12.5px;
  cursor: pointer; text-decoration: underline; text-underline-offset: 2px;
}
.err { color: var(--danger); font-size: 13px; margin: 0; padding: 0 15px 11px; }

.bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-top: 16px; padding: 13px 15px;
  background: var(--card-glass); border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft); backdrop-filter: blur(10px);
}
.opts { display: flex; gap: 16px; flex-wrap: wrap; font-size: 13.5px; color: var(--muted-foreground); }
.opts label { display: inline-flex; align-items: center; gap: 7px; cursor: pointer; }
.seg { display: inline-flex; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-left: auto; }
.seg button { font: inherit; font-size: 13.5px; background: transparent; border: 0; padding: 8px 15px; cursor: pointer; color: var(--muted-foreground); }
.seg button[aria-pressed="true"] { background: var(--foreground); color: #fff; }
.msg { font-size: 13px; color: var(--muted-foreground); }

.result { display: none; }
.result.on { display: block; }

.stats {
  display: flex; flex-wrap: wrap; margin-top: 16px;
  border: 1px solid var(--border-soft); border-radius: var(--radius-card);
  overflow: hidden; background: var(--card-glass);
}
.stat { flex: 1; min-width: 132px; padding: 13px 16px; border-right: 1px solid var(--border); }
.stat:last-child { border-right: 0; }
.stat-n { font-size: 21px; font-weight: 500; letter-spacing: -.02em; }
.stat-l { font-size: 12.5px; color: var(--muted-foreground); }
.n-add { color: var(--primary); }
.n-del { color: var(--danger); }

.panes {
  display: grid; grid-template-columns: 1fr 18px 1fr;
  background: var(--card-glass); border: 1px solid var(--border-soft);
  border-bottom: 0; border-radius: var(--radius-card) var(--radius-card) 0 0; margin-top: 16px;
}
.panes.merged { grid-template-columns: 18px 1fr; }
.col-head {
  padding: 10px 16px; font-size: 12px; letter-spacing: .06em;
  text-transform: uppercase; color: var(--muted-foreground);
}
.col-gut { padding: 0; }
.pane-body {
  background: var(--card-glass); border: 1px solid var(--border-soft);
  border-radius: 0 0 var(--radius-card) var(--radius-card); overflow: hidden;
}
.scroller { max-height: min(62vh, 720px); overflow: auto; }
.grid { display: grid; grid-template-columns: 1fr 18px 1fr; }
.grid.merged { grid-template-columns: 18px 1fr; }

.cell {
  padding: 9px 16px; border-top: 1px solid var(--border);
  font-size: 14.5px; line-height: 1.62; word-break: break-word;
}
.cell.empty { background: rgba(0,0,0,.02); }
.gutter-cell { border-top: 1px solid var(--border); background: rgba(0,0,0,.02); position: relative; }
.gutter-cell::after {
  content: ''; position: absolute; left: 50%; transform: translateX(-50%); top: 9px;
  width: 5px; height: 5px; border-radius: 50%;
}
.gutter-cell.mod::after { background: var(--foreground); }
.gutter-cell.add::after { background: var(--primary); }
.gutter-cell.del::after { background: var(--danger); }

ins { background: var(--primary-soft); color: var(--primary); text-decoration: none; padding: 1px 2px; }
del { background: var(--danger-soft); color: var(--danger); text-decoration: line-through; text-decoration-thickness: 1px; padding: 1px 2px; }
.row-del .side-old { background: rgba(140,36,56,.045); }
.row-add .side-new { background: rgba(11,105,81,.045); }

.mapbar {
  position: fixed; right: max(14px, calc(50vw - 620px)); top: 50%; transform: translateY(-50%);
  width: 12px; height: min(52vh, 520px); padding: 4px 0; display: none;
  background: var(--card); border: 1px solid var(--border); border-radius: 999px; box-shadow: var(--shadow-sm);
}
.mapbar.on { display: block; }
.mapmark { position: absolute; left: 2px; right: 2px; height: 3px; border: 0; padding: 0; border-radius: 2px; cursor: pointer; }
.mapmark.mod { background: var(--foreground); }
.mapmark.add { background: var(--primary); }
.mapmark.del { background: var(--danger); }

.empty-state { padding: 28px 16px; text-align: center; color: var(--muted-foreground); font-size: 14px; }

@media (max-width: 860px) {
  .inputs { grid-template-columns: 1fr; }
  .panes, .grid { grid-template-columns: 1fr !important; }
  .gutter-cell, .col-gut, #headOld { display: none; }
  .mapbar { display: none !important; }
  .mod-head h1 { font-size: 25px; }
}