/* Tool Workspace Layout */
.tool-page-container {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.tool-header-section {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 16px auto;
}

.tool-breadcrumbs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}

.tool-breadcrumbs a {
  color: var(--text-secondary);
}

.tool-breadcrumbs a:hover {
  color: var(--primary);
}

.tool-breadcrumbs span {
  user-select: none;
}

.tool-title {
  font-size: 2.2rem;
  margin-bottom: 12px;
}

.tool-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
}

/* Split Pane Workspace */
.tool-workspace {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 24px;
  align-items: start;
}

.tool-workspace-main {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
}

.tool-workspace-sidebar {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Form controls for controls sidebar */
.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
}

.control-label span.value-display {
  color: var(--primary);
  font-family: monospace;
}

.control-select, .control-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.control-select:focus, .control-input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--bg-secondary);
}

/* Custom sliders */
.control-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--border-color);
  outline: none;
  margin: 10px 0;
}

.control-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.control-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Image preview and comparison */
.preview-container {
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.image-canvas-wrapper {
  max-width: 100%;
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  background-image: linear-gradient(45deg, var(--bg-tertiary) 25%, transparent 25%),
                    linear-gradient(-45deg, var(--bg-tertiary) 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, var(--bg-tertiary) 75%),
                    linear-gradient(-45deg, transparent 75%, var(--bg-tertiary) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}

.image-canvas-wrapper canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Interactive Slider (Before/After) */
.comparison-slider {
  position: relative;
  width: 100%;
  max-height: 500px;
  overflow: hidden;
  border-radius: var(--radius-md);
}

.comparison-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.comparison-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  overflow: hidden;
}

.comparison-handle {
  position: absolute;
  top: 0; bottom: 0; width: 4px;
  background: #ffffff;
  cursor: ew-resize;
  z-index: 10;
  box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.comparison-handle-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}

/* SEO Content Section Styles */
.tool-seo-section {
  border-top: 1px solid var(--border-color);
  padding-top: 64px;
  margin-top: 32px;
}

.seo-content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}

.seo-article {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.seo-article h2, .seo-article h3 {
  margin-top: 12px;
}

.seo-article p {
  font-size: 1.05rem;
}

.seo-article ul, .seo-article ol {
  padding-left: 24px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.seo-article li {
  margin-bottom: 8px;
}

/* Alert boxes in articles */
.seo-alert {
  padding: 20px;
  border-radius: var(--radius-md);
  border-left: 4px solid;
  margin: 16px 0;
}

.seo-alert-warning {
  background: rgba(245, 158, 11, 0.08);
  border-color: #f59e0b;
  color: #d97706;
}

.seo-alert-info {
  background: rgba(59, 130, 246, 0.08);
  border-color: #3b82f6;
  color: #2563eb;
}

/* Dynamic FAQ accordions */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 16px;
}

.faq-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  padding: 18px 24px;
  font-weight: 700;
  background: var(--bg-secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-answer {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  background: var(--bg-primary);
  transition: all var(--transition-normal);
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  padding: 18px 24px;
  max-height: 500px;
  border-top: 1px solid var(--border-color);
}

/* Related Tools grid */
.related-tools-section {
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: fit-content;
}

.related-tool-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-weight: 600;
  transition: all var(--transition-fast);
}

.related-tool-link:hover {
  border-color: var(--primary);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.related-tool-link svg {
  width: 18px;
  height: 18px;
  fill: var(--primary);
}

/* Responsive adjustments */
@media (max-width: 960px) {
  .tool-workspace {
    grid-template-columns: 1fr;
  }
  .seo-content-grid {
    grid-template-columns: 1fr;
  }
}

/* Stacked Single-Column Workspace Styles */
.tool-workspace-single {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.upload-meta-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  box-shadow: var(--shadow-sm);
}

.upload-meta-card span strong {
  color: var(--text-primary);
}

.settings-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.settings-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 24px;
}

.process-action-container {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}

.btn-process-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
  color: #ffffff;
  border: none;
  font-weight: 600;
  padding: 14px 48px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 260px;
  text-align: center;
}

.btn-process-gradient:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.5);
  background: linear-gradient(135deg, #1d4ed8 0%, var(--primary) 100%);
}

.btn-process-gradient:disabled {
  background: var(--bg-tertiary);
  color: var(--text-tertiary);
  cursor: not-allowed;
  box-shadow: none;
}

/* Spinner Overlay Inline */
.spinner-overlay-inline {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  margin: 16px 0;
}

/* Premium Result Card styling */
.result-section-card {
  background: var(--bg-secondary);
  border: 2px solid #10b981;
  border-radius: 20px;
  padding: 32px;
  box-shadow: 0 8px 32px rgba(16, 185, 129, 0.05);
  animation: resultFadeIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: #10b981;
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 24px;
}

.result-header svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.result-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}

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

.stat-box .stat-label {
  font-size: 0.82rem;
  color: var(--text-tertiary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-box .stat-val {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.stat-box .stat-savings {
  color: #10b981;
  font-weight: 700;
}

.download-action-container {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-download-gradient {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  color: #ffffff;
  border: none;
  font-weight: 600;
  padding: 14px 48px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
  justify-content: center;
}

.btn-download-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(16, 185, 129, 0.5);
}

.btn-download-gradient svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

@keyframes resultFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Fixed-Size Responsive Preview Containers */
.fixed-preview-container-wrapper {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}

.fixed-preview-container {
  width: 100%;
  max-width: 900px;
  height: 450px;
  border-radius: 20px;
  overflow: hidden;
  margin: 0 auto;
  position: relative;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: linear-gradient(45deg, var(--bg-primary) 25%, transparent 25%),
                    linear-gradient(-45deg, var(--bg-primary) 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, var(--bg-primary) 75%),
                    linear-gradient(-45deg, transparent 75%, var(--bg-primary) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  transition: all 0.3s ease;
}

.fixed-preview-container canvas,
.fixed-preview-container img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-sm);
  transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  transform-origin: center center;
}

/* Floating Zoom Panel controls */
.preview-zoom-controls {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.zoom-btn {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 4px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.zoom-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  transform: scale(1.1);
}

.zoom-btn.btn-zoom-reset {
  width: auto;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
}

.preview-card-wrap {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  animation: resultFadeIn 0.4s ease;
}

.preview-header-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 900px;
  margin: 0 auto 12px auto;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.preview-header-title {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.preview-header-meta {
  display: flex;
  gap: 16px;
  font-size: 0.82rem;
  flex-wrap: wrap;
}

.preview-header-meta span strong {
  color: var(--text-primary);
}

/* Height Adaptations responsive grid */
@media (max-width: 1200px) {
  .fixed-preview-container {
    height: 420px;
  }
}

@media (max-width: 768px) {
  .fixed-preview-container {
    height: 350px;
  }
}

@media (max-width: 480px) {
  .fixed-preview-container {
    height: 250px;
    border-radius: 16px;
  }
  .preview-header-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* Strict Preview Sizes & Containers */
.preview-image {
    width: 100% !important;
    max-width: 420px !important;
    height: auto !important;
    object-fit: contain !important;
    display: block !important;
    margin: 0 auto !important;
    transition: none !important;
    transform: none !important;
}

.preview-container {
    display: flex !important;
    justify-content: center !important;
    align-items: center !important;
    overflow: hidden !important;
}

/* Two-column layout with right sidebar */
.tool-main-layout {
  display: flex;
  flex-direction: column;
  gap: 24px;
  width: 100%;
}

.tool-content-area {
  display: flex;
  flex-direction: column;
  gap: 32px;
  width: 100%;
}

/* Responsive sidebar layouts */
@media (min-width: 768px) {
  .tool-main-layout {
    display: grid;
    grid-template-columns: 6.5fr 3.5fr;
    gap: 24px;
    align-items: start;
  }
}

@media (min-width: 992px) {
  .tool-main-layout {
    grid-template-columns: 7fr 3fr;
    gap: 28px;
  }
}

@media (min-width: 1200px) {
  .tool-main-layout {
    grid-template-columns: 7.5fr 2.5fr; /* 75% main content, 25% sidebar */
    gap: 32px;
  }
  
  .related-tools-section {
    position: sticky;
    top: 96px; /* Aligned immediately below navbar */
    z-index: 10;
  }
}

.tool-page-container {
  max-width: 100%;
  overflow-x: hidden;
}