/* ==========================================================================
   PDF TOOLS - Global Stylesheet & Design System
   Modern, polished document-productivity aesthetic
   Navy (#0A192F / #0F172A), Crisp White, Accent Blue (#2563EB), Subtle Cyan (#06B6D4)
   ========================================================================== */

:root {
  --color-primary-navy: #0A192F;
  --color-deep-slate: #0F172A;
  --color-navy-surface: #1E293B;
  --color-navy-border: #334155;
  --color-blue-accent: #2563EB;
  --color-blue-hover: #1D4ED8;
  --color-blue-light: #EFF6FF;
  --color-cyan-accent: #06B6D4;
  --color-cyan-glow: rgba(6, 182, 212, 0.25);
  
  --bg-primary: #F8FAFC;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F1F5F9;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --border-hover: #CBD5E1;
  --card-bg: #FFFFFF;
  --card-shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --card-hover-shadow: 0 16px 28px -6px rgba(37, 99, 235, 0.14), 0 8px 12px -4px rgba(15, 23, 42, 0.05);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --transition-fast: 150ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

[data-theme="dark"] {
  --bg-primary: #030712;
  --bg-secondary: #0B1324;
  --bg-tertiary: #111D36;
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --border-color: #1E293B;
  --border-hover: #334155;
  --card-bg: #0F172A;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
  --card-hover-shadow: 0 16px 32px -4px rgba(6, 182, 212, 0.16), 0 8px 16px -4px rgba(0, 0, 0, 0.5);
}

/* Base & Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

main {
  flex: 1;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

/* Accessibility Focus Ring */
:focus-visible {
  outline: 2px solid var(--color-cyan-accent);
  outline-offset: 3px;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition-base), border-color var(--transition-base);
}

.header-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.brand-logo-img:hover {
  transform: scale(1.03);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-blue-accent);
  background: var(--bg-tertiary);
  transform: translateY(-1px);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Search Tool Finder */
.search-trigger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.search-trigger:hover {
  border-color: var(--color-blue-accent);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.search-trigger kbd {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.1rem 0.35rem;
}

/* Theme Toggle Button */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-blue-accent);
  border-color: var(--color-blue-accent);
  transform: rotate(15deg);
}

.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

/* ==========================================================================
   Hero Section & Interactive Elements
   ========================================================================== */

.hero-section {
  position: relative;
  padding: 3.5rem 1.25rem 3rem;
  background: radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.08) 0%, transparent 70%);
  text-align: center;
  overflow: hidden;
}

.hero-container {
  max-width: 980px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.95rem;
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-blue-accent);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  animation: fadeInDown 0.6s ease;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  animation: fadeInUp 0.7s ease;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--color-blue-accent) 0%, var(--color-cyan-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2.25rem;
  line-height: 1.6;
  animation: fadeInUp 0.8s ease;
}

/* Prominent Centered Brand Logo Section */
.hero-brand-showcase {
  margin: 1.5rem auto 2.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.9s ease;
}

.hero-logo-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: 0 10px 25px -5px rgba(15, 23, 42, 0.05);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.hero-logo-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-cyan-accent);
  box-shadow: 0 16px 32px -6px rgba(6, 182, 212, 0.15);
}

.hero-logo-img {
  max-height: 64px;
  width: auto;
  object-fit: contain;
}

/* Interactive Dropzone */
.hero-dropzone {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 2rem;
  background: var(--bg-secondary);
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--card-shadow);
  transition: all var(--transition-base);
  cursor: pointer;
}

.hero-dropzone:hover, .hero-dropzone.dragover {
  border-color: var(--color-blue-accent);
  background: var(--bg-tertiary);
  transform: translateY(-3px);
  box-shadow: 0 16px 36px -6px rgba(37, 99, 235, 0.18);
}

.dropzone-icon-wrapper {
  width: 68px;
  height: 68px;
  margin: 0 auto 1.25rem;
  border-radius: var(--radius-full);
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-blue-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base), background var(--transition-base);
}

.hero-dropzone:hover .dropzone-icon-wrapper {
  transform: scale(1.1) translateY(-2px);
  background: rgba(37, 99, 235, 0.15);
}

.dropzone-title {
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.dropzone-subtitle {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.dropzone-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.85rem;
  font-size: 1rem;
  font-weight: 600;
  color: #FFFFFF;
  background: linear-gradient(135deg, var(--color-blue-accent) 0%, var(--color-blue-hover) 100%);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.dropzone-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.45);
}

.dropzone-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.dropzone-privacy-badge svg {
  color: #10B981;
}

/* ==========================================================================
   Tool Cards & Interactive Hover Animations
   ========================================================================== */

.section-container {
  max-width: 1320px;
  margin: 0 auto;
  padding: 3rem 1.25rem;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
}

/* Category Filter Chips */
.category-filter-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.75rem;
  margin-bottom: 2rem;
  scrollbar-width: thin;
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-chip:hover {
  border-color: var(--color-blue-accent);
  color: var(--color-blue-accent);
  transform: translateY(-2px);
}

.filter-chip.active {
  background: var(--color-blue-accent);
  border-color: var(--color-blue-accent);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

/* Tool Card with Premium Hover Animations */
.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base), background-color var(--transition-base);
  text-decoration: none;
  cursor: pointer;
  overflow: hidden;
}

.tool-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--card-hover-shadow);
  border-color: var(--color-blue-accent);
}

.tool-card:focus-visible {
  outline: 2px solid var(--color-blue-accent);
  outline-offset: 2px;
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.tool-card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.08);
  color: var(--color-blue-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base), background var(--transition-base), color var(--transition-base);
}

.tool-card:hover .tool-card-icon {
  transform: scale(1.08) rotate(-2deg);
  background: var(--color-blue-accent);
  color: #FFFFFF;
}

.tool-badge {
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
  background: rgba(6, 182, 212, 0.12);
  color: var(--color-cyan-accent);
  border: 1px solid rgba(6, 182, 212, 0.25);
}

.tool-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.tool-card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
  flex: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-blue-accent);
  padding-top: 0.75rem;
  border-top: 1px solid var(--border-color);
}

.tool-card-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--bg-tertiary);
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.tool-card:hover .tool-card-arrow {
  transform: translateX(4px);
  background: var(--color-blue-light);
}

/* ==========================================================================
   Features Section & Informational Highlights
   ========================================================================== */

.features-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 4rem 1.25rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  max-width: 1320px;
  margin: 0 auto;
}

.feature-box {
  padding: 2rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-hover-shadow);
  border-color: var(--color-cyan-accent);
}

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-blue-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.feature-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.feature-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   Standard Tool Page Layout
   ========================================================================== */

.tool-page-wrapper {
  max-width: 1040px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.breadcrumb-nav a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb-nav a:hover {
  color: var(--color-blue-accent);
}

.tool-header-block {
  text-align: center;
  margin-bottom: 2.5rem;
}

.tool-page-title {
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.tool-page-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Tool Interactive Workspace Area */
.tool-workspace {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--card-shadow);
  padding: 2rem;
  margin-bottom: 3rem;
}

.file-list-container {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.file-item-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast);
}

.file-item-info {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.file-item-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 380px;
}

.file-item-size {
  font-size: 0.825rem;
  color: var(--text-muted);
}

.file-item-remove {
  color: #EF4444;
  padding: 0.35rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.file-item-remove:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* Settings Controls Panel */
.tool-settings-panel {
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-color);
}

.settings-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.setting-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.setting-input, .setting-select {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.setting-input:focus, .setting-select:focus {
  border-color: var(--color-blue-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Action Controls & Progress */
.tool-actions-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--color-blue-accent);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-blue-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--border-hover);
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.progress-container {
  margin-top: 1.5rem;
  display: none;
}

.progress-bar-track {
  width: 100%;
  height: 8px;
  background: var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--color-blue-accent), var(--color-cyan-accent));
  transition: width 200ms ease;
}

.progress-status-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  text-align: center;
}

/* Results & Download Box */
.output-result-box {
  display: none;
  margin-top: 2rem;
  padding: 1.75rem;
  background: rgba(37, 99, 235, 0.05);
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: var(--radius-lg);
  text-align: center;
}

.output-preview-container {
  max-height: 480px;
  overflow: auto;
  margin: 1.5rem 0;
  display: flex;
  justify-content: center;
}

.output-preview-canvas {
  max-width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
}

/* How-To, Limitations, FAQ Accordions */
.content-card-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  margin-bottom: 2.5rem;
}

.content-section-title {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text-primary);
}

.steps-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  list-style: none;
}

.step-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.step-num-badge {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-blue-accent);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.step-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
}

.step-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Limitations Notice Banner */
.limitations-box {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: rgba(245, 158, 11, 0.08);
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
}

.limitations-icon {
  color: #F59E0B;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.limitations-content {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* FAQ Accordion */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  text-align: left;
  transition: background var(--transition-fast);
}

.faq-question:hover {
  background: var(--bg-tertiary);
}

.faq-answer {
  padding: 0 1.25rem 1rem;
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Related Tools Carousel / Grid */
.related-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

/* ==========================================================================
   Footer & Required Brand Attributions
   ========================================================================== */

.site-footer {
  background: var(--color-primary-navy);
  color: #F8FAFC;
  padding: 4.5rem 1.25rem 2.5rem;
  border-top: 1px solid #1E293B;
  margin-top: auto;
}

.footer-container {
  max-width: 1320px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  filter: brightness(1.1);
}

.footer-brand-desc {
  font-size: 0.925rem;
  color: #94A3B8;
  line-height: 1.6;
  max-width: 360px;
}

.footer-col-title {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-size: 0.9rem;
  color: #94A3B8;
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-block;
}

.footer-link:hover {
  color: var(--color-cyan-accent);
  transform: translateX(3px);
}

/* Bottom Attribution Bar - EXACT REQUIRED PHRASING */
.footer-bottom {
  padding-top: 2.5rem;
  border-top: 1px solid #1E293B;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  text-align: center;
}

.footer-attribution-primary {
  font-size: 1rem;
  font-weight: 600;
  color: #F8FAFC;
}

.footer-attribution-primary a {
  color: #38BDF8;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.footer-attribution-primary a:hover {
  color: #7DD3FC;
}

.footer-attribution-secondary {
  font-size: 0.925rem;
  color: #94A3B8;
}

.footer-attribution-secondary a {
  color: #38BDF8;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

.footer-attribution-secondary a:hover {
  color: #7DD3FC;
}

.footer-copyright {
  font-size: 0.8rem;
  color: #64748B;
  margin-top: 0.5rem;
}

/* Search Modal Overlay */
.search-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 6rem 1rem 2rem;
}

.search-modal-box {
  width: 100%;
  max-width: 640px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  animation: modalScale 0.2s ease;
}

.search-modal-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.search-modal-input {
  flex: 1;
  font-size: 1.15rem;
  border: none;
  background: transparent;
  color: var(--text-primary);
  outline: none;
}

.search-results-list {
  max-height: 380px;
  overflow-y: auto;
  padding: 0.5rem;
  list-style: none;
}

.search-result-item a {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: background var(--transition-fast);
}

.search-result-item a:hover {
  background: var(--bg-tertiary);
}

/* Keyframe Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

/* Reduced Motion Support for Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .tool-card:hover, .feature-box:hover, .hero-logo-card:hover {
    transform: none !important;
  }
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .header-container {
    height: 64px;
  }
  .nav-links {
    display: none;
  }
  .mobile-menu-btn {
    display: flex;
  }
  .hero-section {
    padding: 2.5rem 1rem 2rem;
  }
  .hero-dropzone {
    padding: 2rem 1.25rem;
  }
  .tools-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}