/* ======================================================
   TEXT COMPARE - MODERN GRADIENT STYLE
   ====================================================== */
.compare-card-content {
  max-width: 100%;
  margin: 0 auto;
  padding: 35px;
  background: linear-gradient(145deg, var(--card-bg) 0%, var(--secondary-bg) 100%);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  box-shadow: 
    0 20px 60px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(255, 255, 255, 0.05) inset;
  color: var(--text-color);
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

.compare-card-content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue), var(--accent-purple));
  background-size: 200% 100%;
  animation: compareGradientShift 3s ease infinite;
}

@keyframes compareGradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.compare-card-content h1 {
  color: var(--text-primary);
  font-size: 2rem;
  margin-bottom: 8px;
  text-align: center;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.compare-card-content .compare-intro {
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 25px;
  font-weight: 400;
  line-height: 1.6;
}

/* Toolbar */
.compare-card-content .compare-toolbar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 25px;
}

.compare-card-content .compare-btn,
.compare-card-content .compare-btn-primary {
  padding: 12px 20px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  color: white;
  display: flex;
  align-items: center;
  gap: 8px;
}

.compare-card-content .compare-btn::before,
.compare-card-content .compare-btn-primary::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.compare-card-content .compare-btn:hover::before,
.compare-card-content .compare-btn-primary:hover::before {
  width: 300px;
  height: 300px;
}

.compare-card-content .compare-btn {
  background: linear-gradient(135deg, var(--overlay-medium) 0%, var(--overlay-dark) 100%);
  border: 2px solid var(--border-dark);
  color: var(--text-primary);
}

.compare-card-content .compare-btn:hover {
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-purple-dark) 100%);
  border-color: var(--accent-purple);
  color: white;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(147, 51, 234, 0.4);
}

.compare-card-content .compare-btn:active {
  transform: translateY(0);
}

.compare-card-content .compare-btn-primary {
  background: linear-gradient(135deg, var(--accent-purple) 0%, var(--accent-purple-dark) 100%);
  box-shadow: 0 4px 15px rgba(147, 51, 234, 0.4);
}

.compare-card-content .compare-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(147, 51, 234, 0.6);
}

.compare-card-content .compare-btn-primary:active {
  transform: translateY(0);
}

/* Input grid */
.compare-card-content .compare-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

.compare-card-content .compare-input-box label {
  display: block;
  margin-bottom: 10px;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.compare-card-content .compare-input-box textarea {
  width: 100%;
  min-height: 200px;
  background: var(--overlay-dark);
  border: 2px solid var(--border-dark);
  border-radius: 12px;
  color: var(--text-primary);
  padding: 16px;
  resize: vertical;
  font-family: "Courier New", "Roboto Mono", monospace;
  font-size: 0.95rem;
  white-space: pre;
  transition: all 0.3s ease;
  box-sizing: border-box;
  line-height: 1.5;
}

.compare-card-content .compare-input-box textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.6;
}

.compare-card-content .compare-input-box textarea:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: 0 0 0 3px rgba(147, 51, 234, 0.2);
}

.compare-card-content .compare-input-box textarea:hover {
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.1);
}

/* Results title */
.compare-card-content .result-title {
  text-align: center;
  margin-bottom: 16px;
  margin-top: 30px;
  color: var(--accent-blue);
  font-weight: 700;
  font-size: 1.2rem;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.3s ease;
}

.compare-card-content .result-title.visible {
  opacity: 1;
  max-height: 100px;
}

/* Results grid */
.compare-card-content .compare-results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  opacity: 0;
  max-height: 0;
  overflow: hidden;
  transition: all 0.4s ease;
}

.compare-card-content .compare-results-grid.visible {
  opacity: 1;
  max-height: 2000px;
}

.compare-card-content .compare-result {
  display: grid;
  grid-template-columns: auto 1fr;
  background: var(--overlay-dark);
  border: 2px solid var(--border-dark);
  border-radius: 12px;
  overflow: auto;
  max-height: 600px;
  height: fit-content;
  font-family: "Courier New", "Roboto Mono", monospace;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.compare-card-content .compare-result:hover {
  border-color: var(--accent-purple);
  box-shadow: 0 0 20px rgba(147, 51, 234, 0.2);
}

/* Line numbers */
.compare-card-content .line-numbers {
  background: var(--overlay-medium);
  color: var(--accent-purple);
  text-align: right;
  padding: 16px 12px;
  border-right: 2px solid var(--border-dark);
  user-select: none;
  white-space: pre;
  font-weight: 600;
  font-size: 0.85rem;
  line-height: 1.5;
  opacity: 0.8;
  position: sticky;
  left: 0;
  z-index: 1;
}

/* Code content */
.compare-card-content .code-content {
  padding: 16px 20px;
  white-space: pre;
  overflow: visible;
  line-height: 1.5;
  color: var(--text-primary);
}

.compare-card-content .code-content::-webkit-scrollbar {
  height: 8px;
}

.compare-card-content .code-content::-webkit-scrollbar-track {
  background: var(--overlay-dark);
  border-radius: 4px;
}

.compare-card-content .code-content::-webkit-scrollbar-thumb {
  background: var(--accent-purple);
  border-radius: 4px;
}

.compare-card-content .code-content::-webkit-scrollbar-thumb:hover {
  background: var(--accent-purple-dark);
}

/* Scrollbar styling for compare-result boxes */
.compare-card-content .compare-result::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.compare-card-content .compare-result::-webkit-scrollbar-track {
  background: var(--overlay-dark);
  border-radius: 4px;
}

.compare-card-content .compare-result::-webkit-scrollbar-thumb {
  background: var(--accent-purple);
  border-radius: 4px;
}

.compare-card-content .compare-result::-webkit-scrollbar-thumb:hover {
  background: var(--accent-purple-dark);
}

.compare-card-content .compare-result::-webkit-scrollbar-corner {
  background: var(--overlay-dark);
}

/* Diff styling */
.compare-card-content .diff-added {
  background: linear-gradient(90deg, rgba(16, 185, 129, 0.25) 0%, rgba(16, 185, 129, 0.15) 100%);
  border-left: 3px solid var(--strength-strong);
  padding-left: 8px;
  margin-left: -8px;
  font-weight: 600;
}

.compare-card-content .diff-removed {
  background: linear-gradient(90deg, rgba(239, 68, 68, 0.25) 0%, rgba(239, 68, 68, 0.15) 100%);
  border-left: 3px solid #ef4444;
  padding-left: 8px;
  margin-left: -8px;
  text-decoration: line-through;
  opacity: 0.8;
  font-weight: 600;
}

.compare-card-content .diff-modified {
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.15) 0%, rgba(59, 130, 246, 0.08) 100%);
  border-left: 3px solid var(--accent-blue);
  padding-left: 8px;
  margin-left: -8px;
}

.compare-card-content .diff-empty {
  background: linear-gradient(90deg, rgba(107, 114, 128, 0.15) 0%, rgba(107, 114, 128, 0.08) 100%);
  opacity: 0.5;
}

/* Character-level diff styling */
.compare-card-content .char-added {
  background: var(--strength-strong);
  color: white;
  padding: 2px 1px;
  border-radius: 2px;
  font-weight: 700;
}

.compare-card-content .char-removed {
  background: #ef4444;
  color: white;
  padding: 2px 1px;
  border-radius: 2px;
  font-weight: 700;
  text-decoration: line-through;
}

/* Placeholder */
.compare-card-content .placeholder {
  text-align: center;
  color: var(--text-secondary);
  margin: auto;
  padding: 60px 20px;
  font-style: italic;
  opacity: 0.6;
}

/* Responsive */
@media (max-width: 1024px) {
  .compare-card-content {
    max-width: 100%;
  }
}

@media (max-width: 768px) {
  .compare-card-content {
    padding: 20px 12px;
    border-radius: 16px;
  }
  
  .compare-card-content h1 {
    font-size: 1.5rem;
    margin-bottom: 6px;
  }
  
  .compare-card-content .compare-intro {
    font-size: 0.85rem;
    margin-bottom: 20px;
  }

  .compare-card-content .compare-toolbar {
    gap: 10px;
  }

  .compare-card-content .compare-btn,
  .compare-card-content .compare-btn-primary {
    padding: 10px 16px;
    font-size: 0.9rem;
  }

  .compare-card-content .compare-input-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 20px;
  }

  .compare-card-content .compare-input-box textarea {
    min-height: 150px;
    padding: 14px;
    font-size: 0.9rem;
  }

  .compare-card-content .result-title {
    font-size: 1.1rem;
    margin-bottom: 12px;
  }

  .compare-card-content .compare-results-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .compare-card-content .line-numbers {
    padding: 14px 10px;
    font-size: 0.8rem;
  }

  .compare-card-content .code-content {
    padding: 14px 16px;
    font-size: 0.85rem;
  }

  .compare-card-content .placeholder {
    padding: 40px 16px;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .compare-card-content {
    padding: 16px 10px;
  }

  .compare-card-content h1 {
    font-size: 1.3rem;
  }

  .compare-card-content .compare-intro {
    font-size: 0.8rem;
  }

  .compare-card-content .compare-toolbar {
    flex-direction: column;
  }

  .compare-card-content .compare-btn,
  .compare-card-content .compare-btn-primary {
    width: 100%;
    justify-content: center;
  }

  .compare-card-content .compare-input-box textarea {
    min-height: 120px;
    font-size: 0.85rem;
  }

  .compare-card-content .code-content {
    font-size: 0.8rem;
  }
}