/* ============================================
   Common Mistakes Page — Styles
   ============================================ */

.mistakes-intro {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 760px;
  line-height: 1.8;
  margin-bottom: 40px;
}

/* Category nav */
.mistake-category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.mistake-category-nav a {
  font-size: 13px;
  font-weight: 500;
  padding: 7px 16px;
  background: white;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.15s;
}
.mistake-category-nav a:hover {
  border-color: var(--sage);
  color: var(--sage);
  background: var(--sage-light);
}

/* Mistakes list */
.mistakes-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Mistake card */
.mistake-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.mistake-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 28px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.mistake-num {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 28px;
  color: var(--sage);
  min-width: 44px;
  flex-shrink: 0;
  line-height: 1;
}
.mistake-header h3 {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 20px;
  color: var(--charcoal);
  flex: 1;
}
.mistake-tag {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 12px;
  white-space: nowrap;
  flex-shrink: 0;
}
.mistake-tag-red { background: var(--red-light); color: var(--red); }
.mistake-tag-amber { background: var(--amber-light); color: var(--amber); }
.mistake-tag-blue { background: #e6f0fa; color: #185fa5; }

/* Mistake body - two column */
.mistake-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.mistake-what {
  padding: 24px 28px;
  border-right: 1px solid var(--border);
}
.mistake-fix {
  padding: 24px 28px;
  background: #f8faf8;
}
.mistake-what h4 {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 10px;
}
.mistake-fix h4 {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 10px;
}
.mistake-what p,
.mistake-fix p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Responsive */
@media (max-width: 768px) {
  .mistake-body {
    grid-template-columns: 1fr;
  }
  .mistake-what {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .mistake-header {
    padding: 16px 20px;
  }
  .mistake-what,
  .mistake-fix {
    padding: 18px 20px;
  }
  .mistake-num { font-size: 22px; min-width: 36px; }
  .mistake-header h3 { font-size: 17px; }
}