/* TEXT DIFFERENCE CHECKER — REVISION STUDIO THEME */

body {
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(to bottom right, #fdfefe, #eaf2fb);
  color: #2c3e50;
  padding: 2rem;
  max-width: 1100px;
  margin: auto;
}

h1 {
  text-align: center;
  margin-bottom: 2rem;
  font-weight: 600;
  color: #2b2b2b;
}

/* Layout containers */
.input-pair,
.output-pair {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 2rem;
}

.input-section,
.output-pair > div {
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
}

/* Labels */
label {
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: #3d5166;
}

/* Textareas */
textarea {
  width: 100%;
  height: 140px;
  padding: 0.85rem;
  font-size: 1rem;
  resize: vertical;
  border-radius: 10px;
  border: 1px solid #cbd5e1;
  background-color: #fefefe;
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.05);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

textarea:focus {
  outline: none;
  border-color: #90cdf4;
  box-shadow: 0 0 0 3px rgba(144, 205, 244, 0.4);
}

/* Button */
button {
  display: block;
  margin: 1.5rem auto;
  padding: 0.7rem 1.6rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  background-color: #2f80ed;
  color: white;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(47, 128, 237, 0.15);
  transition: background-color 0.2s ease, transform 0.2s ease;
}

button:hover {
  background-color: #1c64d1;
  transform: translateY(-2px);
}

/* Output boxes */
.output-pair {
  margin-top: 2rem;
}

.diff-output {
  background-color: #ffffff;
  padding: 1rem;
  border-radius: 10px;
  height: 140px;
  overflow-y: auto;
  overflow-x: hidden;
  white-space: pre-wrap;
  border: 1px solid #d1dce5;
  box-shadow: inset 0 0 6px rgba(0,0,0,0.03);
  font-size: 1rem;
  line-height: 1.55;
  color: #1f2d3d;
}

/* Diff highlights */
.added {
  background-color: #d1f7d1;
  color: #226622;
  padding: 0 3px;
  border-radius: 4px;
}

.removed {
  background-color: #ffe0e0;
  color: #a22;
  padding: 0 3px;
  border-radius: 4px;
}

/* Optional scrollbar sync (already JS-enabled) */
.diff-output::-webkit-scrollbar {
  width: 6px;
}

.diff-output::-webkit-scrollbar-thumb {
  background-color: #ccc;
  border-radius: 3px;
}

/* Responsive tweaks */
@media (max-width: 768px) {
  .input-pair,
  .output-pair {
    flex-direction: column;
  }
}