/* LABEL BOLD */
.content label {
  font-weight: bold;
  display: block;
  margin-bottom: 6px;
}

/* TEXTAREA */
.content textarea {
  width: 100%;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid #ccc;
  margin-bottom: 15px;
  font-size: 15px;
  resize: vertical;
  box-sizing: border-box; /* ✅ required */
}

/* GRID */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

/* BUTTON */
.btns {
  text-align: right;
}

.app {
  padding: 12px 20px;
  border: none;
  background: linear-gradient(135deg, #0a3d62, #07517d);
  color: #fff;
  border-radius: 4px;
  cursor: pointer;
}

/* CARDS */
.stats-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 15px;
}

.stat-card {
  background: #f9f9f9;
  padding: 15px;
  border-radius: 8px;
  text-align: center;
  border: 1px solid #ddd; /* ✅ required */
}

.stat-card h3 {
  margin: 0;
  font-size: 22px;
  color: #0a3d62;
}

.stat-card p {
  margin-top: 5px;
  font-size: 13px;
}

/* RESULT */
.result-box {
  margin-top: 20px;
  background: #fafafa;
  padding: 15px;
  border-radius: 6px;
  border: 1px solid #ddd;
  white-space: pre-wrap;
}

.diff {
  background: #ffdcdc;
}

/* MOBILE */
@media (max-width: 768px) {
  body { padding: 20px; }

  .grid-2 {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .btns {
    display: flex;
    flex-direction: column;
    gap: 10px;
  }

  .app {
    width: 100%;
  }
}