/* ==========================================================================
   Collabsource Tools - Interactive Tool Page Styles
   ========================================================================== */

.tool-page-header {
  text-align: center;
  margin-bottom: 32px;
}

.tool-page-title {
  margin-bottom: 12px;
}

.tool-page-subtitle {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 16px;
}

.tool-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--success-bg);
  color: var(--success);
  font-size: 0.8125rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.tool-workspace {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 48px;
}

@media (max-width: 640px) {
  .tool-workspace {
    padding: 16px;
  }
}

/* Drop Zone */
.drop-zone {
  border: 2px dashed var(--primary);
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.drop-zone:hover, .drop-zone.dragover {
  background: rgba(79, 70, 229, 0.12);
  border-color: var(--primary-hover);
  transform: scale(1.01);
}

.drop-zone-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  color: var(--primary);
}

.drop-zone-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.drop-zone-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.drop-zone input[type="file"] {
  display: none;
}

/* Tool Controls Grid */
.controls-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin: 24px 0;
  padding: 20px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
}

.control-input, .control-select {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

.control-input:focus, .control-select:focus {
  border-color: var(--primary);
}

.control-range {
  width: 100%;
  accent-color: var(--primary);
}

.control-textarea {
  width: 100%;
  min-height: 180px;
  padding: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  resize: vertical;
}

/* Tool Actions Bar */
.actions-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}

.actions-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* Metrics & Stats Card */
.metrics-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.metric-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}

.metric-val {
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--primary);
  line-height: 1.2;
}

.metric-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

/* File Preview List */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.file-item-left {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.file-thumbnail {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--bg-secondary);
}

.file-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.file-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size-diff {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  gap: 6px;
}

.file-size-saved {
  color: var(--success);
  font-weight: 700;
}

/* Diff View Layout */
.diff-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .diff-container {
    grid-template-columns: 1fr 1fr;
  }
}

.diff-panel {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.diff-output {
  min-height: 240px;
  padding: 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-y: auto;
}

.diff-added {
  background-color: rgba(16, 185, 129, 0.2);
  color: #065f46;
  padding: 2px 4px;
  border-radius: 2px;
}

.diff-removed {
  background-color: rgba(239, 68, 68, 0.2);
  color: #991b1b;
  text-decoration: line-through;
  padding: 2px 4px;
  border-radius: 2px;
}

/* Tool Editorial / SEO Content */
.tool-content-article {
  max-width: 860px;
  margin: 0 auto;
  line-height: 1.8;
}

.tool-content-article h2 {
  margin: 40px 0 16px;
}

.tool-content-article h3 {
  margin: 28px 0 12px;
}

.tool-content-article ul, .tool-content-article ol {
  margin: 16px 0 24px 20px;
}

.tool-content-article li {
  margin-bottom: 8px;
  color: var(--text-secondary);
}

.guide-callout {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 32px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

@media (max-width: 640px) {
  .guide-callout {
    flex-direction: column;
    align-items: flex-start;
  }
}