/* ── text-compare page-specific styles ── */

/* Diff color tokens */
.theme-dark {
  --del-bg:    rgba(239,68,68,.18);
  --del-color: #f87171;
  --ins-bg:    rgba(52,211,153,.15);
  --ins-color: #34d399;
}
.theme-light {
  --del-bg:    rgba(220,38,38,.09);
  --del-color: #b91c1c;
  --ins-bg:    rgba(22,163,74,.09);
  --ins-color: #15803d;
}

/* Wider layout for two-pane view */
.main { max-width: 1100px; }
.page-heading { text-align: center; }
.page-heading p { max-width: 560px; margin: 0 auto; }

/* Two text panes */
.compare-panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 14px;
}
.pane { display: flex; flex-direction: column; gap: 8px; }
.pane-label {
  font-size: .7rem; font-weight: 700; letter-spacing: .07em;
  text-transform: uppercase; color: var(--text-muted);
}
.pane textarea {
  width: 100%; height: 220px; padding: 14px 16px;
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); color: var(--text-pri);
  font-family: var(--font-ui); font-size: .9rem; line-height: 1.65;
  resize: vertical; outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.pane textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.pane textarea::placeholder { color: var(--text-muted); }

/* Compare / clear buttons */
.btn-row {
  display: flex; align-items: center; justify-content: center;
  gap: 10px; margin-bottom: 24px;
}
.btn-compare {
  display: flex; align-items: center; gap: 7px;
  padding: 0 28px; height: 42px;
  background: var(--accent); color: #fff;
  border: none; border-radius: 100px;
  font-size: .88rem; font-weight: 700; font-family: var(--font-ui);
  cursor: pointer; letter-spacing: .01em;
  transition: opacity var(--t-fast), transform var(--t-fast);
}
.btn-compare:hover { opacity: .88; transform: translateY(-1px); }
.btn-compare:active { transform: translateY(0); opacity: 1; }
.btn-compare:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-compare svg { width: 14px; height: 14px; }
.btn-clear-below {
  padding: 0 20px; height: 42px;
  background: transparent; color: var(--text-sec);
  border: 1px solid var(--border); border-radius: 100px;
  font-size: .84rem; font-weight: 600; font-family: var(--font-ui); cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}
.btn-clear-below:hover { background: var(--surface-2); border-color: var(--text-muted); color: var(--text-pri); }
.btn-clear-below:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.hint-text { font-size: .72rem; color: var(--text-muted); margin-left: 4px; }

/* Stats row (flex, not grid) */
.stats-bar { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.stat-card { flex: 1; min-width: 90px; padding: 14px 16px; gap: 4px; }
.stat-value { font-size: 1.45rem; font-weight: 800; }
.stat-label { font-size: .68rem; letter-spacing: .04em; }
.stat-del .stat-value { color: var(--del-color); }
.stat-ins .stat-value { color: var(--ins-color); }
.stat-sim .stat-value { color: var(--accent); }

/* Diff legend */
.diff-legend {
  display: flex; gap: 18px; margin-bottom: 10px;
  font-size: .76rem; color: var(--text-sec);
  align-items: center; flex-wrap: wrap;
}
.legend-item { display: flex; align-items: center; gap: 6px; }
.legend-swatch { width: 13px; height: 13px; border-radius: 3px; flex-shrink: 0; }
.legend-del { background: var(--del-bg); border: 1px solid var(--del-color); }
.legend-ins { background: var(--ins-bg); border: 1px solid var(--ins-color); }

/* Diff output */
.diff-wrap {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px;
  line-height: 1.9; font-size: .92rem; color: var(--text-pri);
  word-wrap: break-word; display: none;
}
.diff-wrap.visible { display: block; }
.diff-empty { color: var(--text-muted); font-size: .88rem; }
.diff-del {
  background: var(--del-bg); color: var(--del-color);
  text-decoration: line-through; text-decoration-thickness: 1.5px;
  border-radius: 3px; padding: 1px 3px;
}
.diff-ins {
  background: var(--ins-bg); color: var(--ins-color);
  text-decoration: underline; text-decoration-thickness: 1.5px;
  border-radius: 3px; padding: 1px 3px;
}

/* Two-column SEO/info section */
.content-section {
  margin-top: 56px; border-top: 1px solid var(--border);
  padding-top: 40px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px 56px;
}
.content-col h2 {
  font-size: 1.05rem; font-weight: 700; letter-spacing: -.01em;
  color: var(--text-pri); margin-bottom: 10px;
}
.content-col p { font-size: .875rem; color: var(--text-sec); line-height: 1.75; margin-bottom: 12px; }
.content-col ul { list-style: none; margin: 0 0 16px; display: flex; flex-direction: column; gap: 6px; }
.content-col ul li { font-size: .875rem; color: var(--text-sec); padding-left: 18px; position: relative; line-height: 1.65; }
.content-col ul li::before { content: '→'; position: absolute; left: 0; color: var(--accent); font-size: .78rem; }
.content-col a { color: var(--accent); text-decoration: none; }
.content-col a:hover { text-decoration: underline; }

@media (max-width: 680px) {
  .compare-panes { grid-template-columns: 1fr; }
  .content-section { grid-template-columns: 1fr; gap: 28px; }
  .stats-bar { gap: 8px; }
  .stat-value { font-size: 1.25rem; }
  .hint-text { display: none; }
}