/* Text Diff Checker — Tool-specific styles */

.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;
}

/* Input textareas */
.input-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  margin-bottom: 16px;
}
.input-col textarea {
  width: 100%; min-height: 180px; resize: vertical;
  background: #0d0d0d; border: 1px solid #2a2a2a; border-radius: 8px;
  color: #e1e1e1; font-size: 14px; padding: 14px; outline: none;
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Consolas', monospace;
  line-height: 1.6; transition: border-color 0.2s;
}
.input-col textarea:focus { border-color: #ff4444; }
.input-col textarea::placeholder { color: #444; }

/* Action buttons */
.actions {
  display: flex; gap: 10px; align-items: center; margin-bottom: 20px;
  flex-wrap: wrap;
}
.btn {
  padding: 10px 22px; border-radius: 8px; font-size: 14px; font-weight: 600;
  cursor: pointer; border: none; transition: all 0.15s;
}
.btn-primary { background: #ff4444; color: #fff; }
.btn-primary:hover { background: #cc0000; }
.btn-secondary { background: #1a1a1a; color: #ccc; border: 1px solid #333; }
.btn-secondary:hover { border-color: #555; color: #fff; }

.view-toggle {
  display: flex; margin-left: auto; border: 1px solid #333; border-radius: 6px; overflow: hidden;
}
.toggle-btn {
  padding: 8px 16px; font-size: 13px; background: transparent; color: #888;
  border: none; cursor: pointer; transition: all 0.15s;
}
.toggle-btn:hover { color: #ccc; }
.toggle-btn.active { background: #262626; color: #fff; }

/* Stats bar */
.stats {
  background: #141414; border: 1px solid #262626; border-radius: 8px;
  padding: 12px 18px; margin-bottom: 16px;
  display: flex; gap: 20px; font-size: 13px; color: #888;
  flex-wrap: wrap;
}
.stats .stat-val { color: #e1e1e1; font-weight: 600; }
.stat-added .stat-val { color: #4ade80; }
.stat-removed .stat-val { color: #f87171; }
.stat-changed .stat-val { color: #facc15; }

/* Side-by-side view */
.result-side {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid #262626; border-radius: 10px; overflow: hidden;
}
.diff-panel { min-width: 0; }
.diff-panel:first-child { border-right: 1px solid #262626; }
.diff-header {
  background: #1a1a1a; padding: 8px 14px; font-size: 12px;
  color: #888; text-transform: uppercase; letter-spacing: 0.5px;
  font-weight: 600; border-bottom: 1px solid #262626;
}
.diff-content {
  font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Consolas', monospace;
  font-size: 13px; line-height: 1.7; overflow-x: auto;
}

/* Inline view */
.result-inline {
  border: 1px solid #262626; border-radius: 10px; overflow: hidden;
}
.result-inline .diff-content { padding: 0; }

/* Diff lines */
.diff-line {
  padding: 2px 14px; white-space: pre-wrap; word-break: break-word;
  min-height: 1.7em; border-bottom: 1px solid #1a1a1a;
  display: flex;
}
.diff-line-num {
  color: #444; font-size: 12px; min-width: 36px; text-align: right;
  padding-right: 12px; user-select: none; flex-shrink: 0;
}
.diff-line-text { flex: 1; min-width: 0; }

.diff-line.added { background: rgba(74, 222, 128, 0.08); }
.diff-line.added .diff-line-num { color: #4ade80; }
.diff-line.removed { background: rgba(248, 113, 113, 0.08); }
.diff-line.removed .diff-line-num { color: #f87171; }
.diff-line.changed { background: rgba(250, 204, 21, 0.06); }

/* Inline word-level highlights */
.hl-add {
  background: rgba(74, 222, 128, 0.25); border-radius: 2px;
  padding: 1px 0;
}
.hl-rm {
  background: rgba(248, 113, 113, 0.25); border-radius: 2px;
  padding: 1px 0; text-decoration: line-through; text-decoration-color: rgba(248,113,113,0.5);
}

/* Empty placeholder for side-by-side alignment */
.diff-line.empty { background: rgba(255,255,255,0.02); }
.diff-line.empty .diff-line-text { color: #333; }

/* No changes message */
.no-changes {
  text-align: center; padding: 40px 20px; color: #4ade80;
  font-size: 16px; background: #141414; border: 1px solid #262626;
  border-radius: 10px;
}

@media (max-width: 700px) {
  .input-row { grid-template-columns: 1fr; }
  .result-side { grid-template-columns: 1fr; }
  .diff-panel:first-child { border-right: none; border-bottom: 1px solid #262626; }
  .view-toggle { margin-left: 0; }
  .actions { flex-direction: column; align-items: stretch; }
  .actions .btn { text-align: center; }
}