/* ==========================================================================
   IMAGE RESIZER - CORE STYLESHEET
   Ultra-Modern Design System with Glassmorphism, Dark/Light Mode & Accessibility
   ========================================================================== */

:root {
  /* Modern Color Palette - Light Mode */
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --border-color: #e2e8f0;
  --border-hover: #cbd5e1;
  --border-focus: #818cf8;
  
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: rgba(79, 70, 229, 0.08);
  --primary-border: rgba(79, 70, 229, 0.25);
  --primary-glow: rgba(79, 70, 229, 0.25);
  
  --accent: #0284c7;
  --accent-light: rgba(2, 132, 199, 0.08);
  --accent-cyan: #06b6d4;
  
  --gradient-primary: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  --gradient-accent: linear-gradient(135deg, #ec4899 0%, #8b5cf6 100%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.6) 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(79, 70, 229, 0.12) 0%, transparent 70%);
  
  --success: #10b981;
  --success-light: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-light: rgba(245, 158, 11, 0.1);
  --danger: #ef4444;
  --danger-light: rgba(239, 68, 68, 0.1);
  
  /* Modern Shadows */
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.04), 0 1px 2px -1px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.06), 0 2px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.08), 0 4px 12px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 24px 38px -6px rgba(0, 0, 0, 0.1), 0 12px 18px -6px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 25px -4px rgba(79, 70, 229, 0.35);
  
  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Typography & Layout */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --max-width: 1240px;
  --header-height: 72px;
  --transition-fast: 160ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  /* Modern Color Palette - Dark Obsidian Theme */
  --bg-primary: #080c14;
  --bg-secondary: #0d1322;
  --bg-surface: #121a2d;
  --bg-card: #111827;
  --bg-card-hover: #172136;
  --border-color: #1e293b;
  --border-hover: #334155;
  --border-focus: #6366f1;
  
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #080c14;
  
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --primary-light: rgba(99, 102, 241, 0.16);
  --primary-border: rgba(99, 102, 241, 0.35);
  --primary-glow: rgba(99, 102, 241, 0.3);
  
  --accent: #38bdf8;
  --accent-light: rgba(56, 189, 248, 0.16);
  --accent-cyan: #22d3ee;
  
  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #22d3ee 100%);
  --gradient-accent: linear-gradient(135deg, #f43f5e 0%, #a855f7 100%);
  --gradient-card: linear-gradient(180deg, rgba(18, 26, 45, 0.9) 0%, rgba(13, 19, 34, 0.7) 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.2) 0%, transparent 70%);
  
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 12px -2px rgba(0, 0, 0, 0.6), 0 2px 6px -2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, 0.7), 0 4px 12px -4px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 24px 38px -6px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 0 30px -4px rgba(99, 102, 241, 0.4);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
  background-image: var(--gradient-glow);
  background-attachment: fixed;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

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

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

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

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.main-content {
  flex: 1;
  padding-top: var(--header-height);
}

/* ==========================================================================
   Header & Sticky Glass Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

[data-theme="dark"] .site-header {
  background-color: rgba(8, 12, 20, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.site-logo, .brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  text-decoration: none;
  flex-shrink: 0;
}

.site-logo:hover, .brand-logo:hover {
  color: var(--text-primary);
}

.logo-icon, .brand-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: transform var(--transition-fast);
}

.site-logo:hover .logo-icon, .brand-logo:hover .brand-icon {
  transform: scale(1.05);
}

.logo-icon svg, .brand-icon svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.logo-text span, .brand-name span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Desktop Navigation */
.nav-menu, .main-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.85rem;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
  background-color: var(--primary-light);
}

.nav-dropdown-icon, .dropdown-arrow {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-dropdown-icon, .nav-item:hover .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 270px;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: 0.6rem;
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-base);
  z-index: 1010;
  max-height: 480px;
  overflow-y: auto;
  backdrop-filter: blur(16px);
}

[data-theme="dark"] .dropdown-menu {
  background: rgba(18, 26, 45, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-item:hover .dropdown-menu, .nav-item.has-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item, .dropdown-link {
  display: block;
  padding: 0.6rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.dropdown-item:hover, .dropdown-link:hover {
  background-color: var(--primary-light);
  color: var(--primary);
  padding-left: 1.15rem;
}

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

.theme-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.theme-toggle-btn:hover {
  color: var(--primary);
  border-color: var(--primary-border);
  background-color: var(--primary-light);
  transform: scale(1.05);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.sun-icon, .theme-icon-dark { display: none; }
.moon-icon, .theme-icon-light { display: block; }
[data-theme="dark"] .sun-icon, [data-theme="dark"] .theme-icon-dark { display: block; }
[data-theme="dark"] .moon-icon, [data-theme="dark"] .theme-icon-light { display: none; }

.mobile-nav-toggle, .hamburger-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
}

.mobile-nav-toggle svg, .hamburger-btn svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* ==========================================================================
   Hero Section & Search
   ========================================================================== */
.hero-section {
  padding: 5rem 0 3.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1.15rem;
  background-color: var(--primary-light);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-full);
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.75rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.gradient-text, .hero-title span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle, .hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.65;
}

.hero-actions, .hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}

/* Global Tool Search Bar */
.search-container, .search-section {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}

.search-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 1.25rem;
  width: 22px;
  height: 22px;
  color: var(--text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 1.05rem 3.5rem 1.05rem 3.25rem;
  font-size: 1.05rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-fast);
}

.search-input:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: var(--shadow-glow), 0 0 0 4px var(--primary-light);
}

.search-clear-btn {
  position: absolute;
  right: 1.25rem;
  width: 28px;
  height: 28px;
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border-radius: var(--radius-full);
}

.search-clear-btn:hover {
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

.search-results-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  max-height: 420px;
  overflow-y: auto;
  z-index: 900;
  padding: 0.75rem;
  display: none;
  text-align: left;
}

.search-results-dropdown.active {
  display: block;
  animation: fadeInDown 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.search-result-item:hover {
  background-color: var(--primary-light);
  color: var(--primary);
}

.search-result-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.search-result-title {
  font-weight: 700;
  font-size: 0.98rem;
}

.search-result-category {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
}

.search-no-results {
  padding: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   Buttons & UI Controls
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.8rem 1.6rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
  transition: all var(--transition-fast);
  text-decoration: none;
  text-align: center;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--gradient-primary);
  color: #ffffff !important;
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 22px var(--primary-glow);
  opacity: 0.96;
}

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

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

.btn-secondary:hover {
  background-color: var(--bg-secondary);
  border-color: var(--border-hover);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
}

.btn-outline:hover {
  background-color: var(--primary-light);
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}

.btn-danger:hover {
  background-color: #dc2626;
  color: #ffffff;
}

.btn-success {
  background-color: var(--success);
  color: #ffffff;
}

.btn-success:hover {
  background-color: #059669;
  color: #ffffff;
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 1.05rem;
  border-radius: var(--radius-lg);
}

/* ==========================================================================
   Tool Cards & Category Grids
   ========================================================================== */
.tools-section {
  padding: 4.5rem 0;
  border-top: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 2.75rem;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(285px, 1fr));
  gap: 1.65rem;
}

.tool-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  position: relative;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.tool-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.tool-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-border);
  background-color: var(--bg-card-hover);
  box-shadow: var(--shadow-lg), 0 0 20px -5px var(--primary-glow);
}

.tool-card:hover::before {
  opacity: 1;
}

.tool-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.35rem;
}

.tool-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-card-icon {
  transform: scale(1.1) rotate(2deg);
}

.tool-card-icon svg {
  width: 26px;
  height: 26px;
  fill: currentColor;
}

.tool-category-badge, .tool-card-category {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background-color: var(--bg-secondary);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.tool-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  letter-spacing: -0.015em;
}

.tool-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 1.6rem;
  flex: 1;
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--primary);
  font-weight: 700;
  font-size: 0.9rem;
}

.tool-card-action {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.tool-card-footer svg, .tool-card-action svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.tool-card:hover .tool-card-footer svg, .tool-card:hover .tool-card-action svg {
  transform: translateX(4px);
}

/* ==========================================================================
   AdSense Placement Containers
   ========================================================================== */
.ad-slot-container, .ad-slot {
  margin: 2.5rem 0;
  padding: 1.25rem;
  background-color: var(--bg-secondary);
  border: 1.5px dashed var(--border-color);
  border-radius: var(--radius-md);
  text-align: center;
  position: relative;
  min-height: 110px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast);
}

.ad-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.ad-content-box, .ad-placeholder-inner {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ==========================================================================
   Tool Page Specific Architecture
   ========================================================================== */
.tool-page-header {
  padding: 2.5rem 0 1.5rem;
}

.breadcrumb-nav, .breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

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

.breadcrumb-item a, .breadcrumbs a {
  color: var(--text-muted);
  font-weight: 500;
}

.breadcrumb-item a:hover, .breadcrumbs a:hover {
  color: var(--primary);
}

.breadcrumb-separator, .breadcrumbs-separator {
  color: var(--text-muted);
  user-select: none;
}

.tool-page-title, .tool-title {
  font-size: clamp(2rem, 4vw, 2.85rem);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}

.tool-page-subtitle, .tool-description {
  font-size: 1.12rem;
  color: var(--text-secondary);
  max-width: 820px;
  line-height: 1.65;
}

/* Tool Workspace Container */
.tool-workspace {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 2.25rem;
  margin-bottom: 3.5rem;
  position: relative;
}

.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.25rem;
}

@media (max-width: 900px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

/* Ultra-Modern Drag & Drop Upload Zone */
.dropzone {
  display: block;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background-color: var(--bg-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  user-select: none;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background-color: var(--primary-light);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.dropzone-icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 0.85rem;
  color: var(--primary);
  transition: transform var(--transition-fast);
}

.dropzone:hover .dropzone-icon {
  transform: translateY(-4px) scale(1.08);
}

.dropzone-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.dropzone-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.dropzone-subtext {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.dropzone-btn-wrap {
  margin-top: 0.75rem;
  pointer-events: none;
}

.dropzone-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
}

.dropzone-status {
  margin-top: 0.85rem;
}

.dropzone-status span {
  display: inline-block;
  padding: 0.4rem 0.95rem;
  background-color: var(--success);
  color: #ffffff;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

.file-input {
  display: none !important;
}

/* Modern Form Controls */
.form-group {
  margin-bottom: 1.35rem;
}

.form-label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-card);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--primary);
  outline: none;
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.range-slider-wrapper {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.range-slider {
  flex: 1;
  accent-color: var(--primary);
  height: 8px;
  border-radius: var(--radius-full);
  cursor: pointer;
}

.slider-val {
  min-width: 48px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--primary);
  background-color: var(--primary-light);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  text-align: center;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.checkbox-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Modern Preview Panels */
.preview-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 300px;
  position: relative;
  overflow: hidden;
  background-image: 
    linear-gradient(45deg, rgba(0, 0, 0, 0.04) 25%, transparent 25%), 
    linear-gradient(-45deg, rgba(0, 0, 0, 0.04) 25%, transparent 25%), 
    linear-gradient(45deg, transparent 75%, rgba(0, 0, 0, 0.04) 75%), 
    linear-gradient(-45deg, transparent 75%, rgba(0, 0, 0, 0.04) 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.preview-img, .preview-canvas {
  max-width: 100%;
  max-height: 380px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  object-fit: contain;
}

.stats-badge-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 0.85rem;
  width: 100%;
  margin-top: 1.25rem;
}

.stat-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.9rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.stat-box-title {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 0.2rem;
}

.stat-box-val {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.tool-actions-bar {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

/* Informational Alert */
.info-disclaimer-box {
  background-color: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 1.15rem 1.4rem;
  margin-bottom: 2rem;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.info-disclaimer-box strong {
  color: var(--text-primary);
}

/* ==========================================================================
   ARTICLE & SEO EDITORIAL CONTENT ("arictal")
   Modern In-Depth Guides, Callouts, Tables, Steps, and FAQs
   ========================================================================== */
.article-content, .tool-guide-section {
  margin: 3.5rem 0;
}

.article-meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  padding: 0.5rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
}

.article-meta-badge span {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.article-meta-badge .badge-pill {
  color: var(--primary);
  font-weight: 700;
}

.guide-card, .article-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  margin-bottom: 2.25rem;
  box-shadow: var(--shadow-sm);
}

.guide-title, .article-content h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.85rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.35rem;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.guide-title svg, .article-content h2 svg {
  width: 26px;
  height: 26px;
  color: var(--primary);
  fill: currentColor;
  flex-shrink: 0;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.75rem 0 0.85rem;
  letter-spacing: -0.01em;
}

.article-content p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.35rem;
}

/* Modern Callout Alerts */
.callout-box {
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  margin: 1.75rem 0;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  border-left: 4px solid var(--primary);
  background-color: var(--primary-light);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.callout-box svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--primary);
  fill: currentColor;
  margin-top: 2px;
}

.callout-box.callout-tip {
  border-left-color: var(--success);
  background-color: var(--success-light);
}
.callout-box.callout-tip svg {
  color: var(--success);
}

.callout-box.callout-warning {
  border-left-color: var(--warning);
  background-color: var(--warning-light);
}
.callout-box.callout-warning svg {
  color: var(--warning);
}

.callout-box strong {
  color: var(--text-primary);
}

/* Modern Comparison Data Table */
.comparison-table-wrapper {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  margin: 2rem 0;
  box-shadow: var(--shadow-sm);
  background-color: var(--bg-surface);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.comparison-table th {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 700;
  padding: 0.9rem 1.25rem;
  border-bottom: 2px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.comparison-table td {
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table tr:hover td {
  background-color: var(--primary-light);
}

/* Numbered Step-by-Step Flow */
.steps-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.step-item {
  display: flex;
  gap: 1.15rem;
  align-items: flex-start;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.4rem;
  transition: transform var(--transition-fast);
}

.step-item:hover {
  transform: translateX(4px);
  border-color: var(--primary-border);
}

.step-num, .step-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: #ffffff;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.95rem;
  box-shadow: 0 4px 10px var(--primary-glow);
}

.step-text h4, .step-details h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}

.step-text p, .step-details p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Feature & Benefit Grid */
.features-grid, .features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
}

.feature-box, .feature-item {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.feature-box:hover, .feature-item:hover {
  transform: translateY(-3px);
  border-color: var(--primary-border);
  box-shadow: var(--shadow-sm);
}

.feature-box h4, .feature-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.45rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.feature-box p, .feature-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Use Cases List */
.use-cases-list {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.use-case-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.15rem;
}

.use-case-item .check-icon {
  width: 20px;
  height: 20px;
  color: var(--success);
  flex-shrink: 0;
  margin-top: 2px;
}

.use-case-item p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* Modern FAQ Accordion */
.faq-accordion, .faq-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.faq-item:hover {
  border-color: var(--primary-border);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: 0 0 16px -4px var(--primary-glow);
}

.faq-question {
  width: 100%;
  padding: 1.25rem 1.4rem;
  text-align: left;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

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

.faq-icon, .faq-arrow {
  width: 20px;
  height: 20px;
  color: var(--primary);
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

.faq-item.active .faq-icon, .faq-item.active .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.4rem 1.35rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  display: none;
}

.faq-item.active .faq-answer {
  display: block;
  animation: fadeIn 0.25s ease;
}

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

/* ==========================================================================
   Static Pages (About, Contact, Legal, Sitemap)
   ========================================================================== */
.static-page-header {
  padding: 3.5rem 0 2rem;
  text-align: center;
}

.static-page-title {
  font-size: clamp(2.2rem, 4vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.85rem;
}

.static-page-lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.65;
}

.legal-content-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3rem;
  margin-bottom: 3.5rem;
  box-shadow: var(--shadow-sm);
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.legal-content-card h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 2.25rem 0 0.95rem;
  letter-spacing: -0.015em;
}

.legal-content-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin: 1.65rem 0 0.75rem;
}

.legal-content-card p {
  margin-bottom: 1.35rem;
}

.legal-content-card ul {
  margin: 0 0 1.35rem 1.75rem;
}

.legal-content-card li {
  margin-bottom: 0.55rem;
}

/* Contact Grid */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 4rem;
}

.contact-info-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

/* Sitemap List */
.sitemap-category-group {
  margin-bottom: 2.75rem;
}

.sitemap-category-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1.15rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}

.sitemap-links-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.85rem;
  list-style: none;
}

/* ==========================================================================
   Homepage Highlights & Features
   ========================================================================== */
.features-section {
  padding: 5rem 0;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.feature-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-highlight-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base);
}

.feature-highlight-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--primary-border);
}

.feature-highlight-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.35rem;
}

.feature-highlight-icon svg {
  width: 28px;
  height: 28px;
  fill: currentColor;
}

.feature-highlight-card h3 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.65rem;
  letter-spacing: -0.01em;
}

.feature-highlight-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* Call to Action Banner */
.cta-banner {
  margin: 5rem 0;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  padding: 4rem 2rem;
  text-align: center;
  color: #ffffff;
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.025em;
}

.cta-banner p {
  font-size: 1.15rem;
  max-width: 650px;
  margin: 0 auto 2.25rem;
  opacity: 0.95;
}

.cta-banner .btn-cta {
  background-color: #ffffff;
  color: var(--primary) !important;
  font-weight: 800;
  padding: 1rem 2.5rem;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.2);
}

.cta-banner .btn-cta:hover {
  background-color: #f8fafc;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 5rem 0 2.5rem;
  margin-top: auto;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.footer-brand p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 360px;
}

.footer-social-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: var(--bg-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.social-icon-btn:hover {
  background-color: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary-border);
  transform: translateY(-2px);
}

.social-icon-btn svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  margin-bottom: 1.35rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 2.25rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.35rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-primary);
  font-size: 0.92rem;
  font-weight: 600;
  animation: slideIn 0.3s ease forwards;
}

.toast.toast-success {
  border-left: 4px solid var(--success);
}

.toast.toast-error {
  border-left: 4px solid var(--danger);
}

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Prefers-Reduced-Motion 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;
  }
}


/* FINAL LAYOUT FIX v2 */
.mobile-nav-drawer {
  display: none !important;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  background: var(--bg-surface);
  overflow-y: auto;
  border-top: 1px solid var(--border-color);
  box-shadow: var(--shadow-xl);
}
.mobile-nav-drawer.active { display: block !important; }
.mobile-nav-list { display:flex; flex-direction:column; padding:1rem 1.25rem 2rem; gap:.15rem; }
.mobile-nav-link { display:block; padding:.7rem .85rem; color:var(--text-secondary); border-radius:var(--radius-sm); }
.mobile-nav-link:hover { background:var(--primary-light); color:var(--primary); }
.mobile-category-title { margin-top:1rem; padding:.5rem .85rem; font-size:.78rem; font-weight:800; color:var(--text-muted); text-transform:uppercase; letter-spacing:.06em; }

/* The HTML uses upload-* classes while the older stylesheet used dropzone-* classes. */
.upload-zone {
  display:block; border:2px dashed var(--border-color); border-radius:var(--radius-lg);
  padding:2.5rem 1.5rem; text-align:center; background:var(--bg-secondary);
  cursor:pointer; position:relative; user-select:none; transition:all var(--transition-fast);
}
.upload-zone:hover, .upload-zone.dragover { border-color:var(--primary); background:var(--primary-light); box-shadow:var(--shadow-md); }
.upload-icon { width:54px !important; height:54px !important; margin:0 auto .85rem !important; color:var(--primary); display:block; }
.upload-title { font-size:1.1rem; font-weight:700; color:var(--text-primary); margin-bottom:.35rem; }
.upload-subtitle { font-size:.88rem; color:var(--text-muted); margin-bottom:.75rem; }
.file-input-hidden { display:none !important; }
.tool-preview-container { margin-top:1.5rem; display:grid; grid-template-columns:minmax(0,1fr) 1fr; gap:1.25rem; }
.preview-box { min-height:300px; display:flex; align-items:center; justify-content:center; padding:1rem; background:var(--bg-secondary); border:1px solid var(--border-color); border-radius:var(--radius-lg); overflow:hidden; }
.preview-box canvas, .preview-box img { max-width:100%; max-height:380px; width:auto; height:auto; object-fit:contain; }
@media (max-width:900px){ .tool-preview-container{grid-template-columns:1fr;} }
@media (max-width:768px){
  .main-nav { display:none !important; }
  .hamburger-btn { display:flex !important; }
  .mobile-nav-drawer.active { display:block !important; }
}
@media (min-width:769px){
  .mobile-nav-drawer { display:none !important; }
  .hamburger-btn { display:none !important; }
}


/* FINAL FOOTER FIX: HTML uses social-btn/social-links and footer-links-list */
.social-links {
  display: flex !important;
  align-items: center !important;
  gap: 0.75rem !important;
  flex-wrap: wrap;
}
.social-btn {
  width: 40px !important;
  height: 40px !important;
  min-width: 40px !important;
  min-height: 40px !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  flex: 0 0 40px !important;
  padding: 0 !important;
  margin: 0 !important;
  border-radius: var(--radius-md) !important;
  border: 1px solid var(--border-color) !important;
  background: var(--bg-card) !important;
  color: var(--text-secondary) !important;
  text-decoration: none !important;
  line-height: 1 !important;
  box-sizing: border-box !important;
}
.social-btn svg {
  display: block !important;
  width: 20px !important;
  height: 20px !important;
  max-width: 20px !important;
  max-height: 20px !important;
  min-width: 20px !important;
  min-height: 20px !important;
  flex: 0 0 20px !important;
  overflow: hidden !important;
}
.social-btn:hover {
  background: var(--primary-light) !important;
  color: var(--primary) !important;
  border-color: var(--primary-border) !important;
  transform: translateY(-2px);
}
.footer-links-list {
  list-style: none !important;
  margin: 0 !important;
  padding: 0 !important;
  display: flex !important;
  flex-direction: column !important;
  gap: .65rem !important;
}
.footer-links-list li { margin: 0 !important; padding: 0 !important; list-style: none !important; }
.footer-links-list a {
  display: inline-block !important;
  color: var(--text-secondary) !important;
  text-decoration: none !important;
  line-height: 1.45 !important;
}
.footer-links-list a:hover { color: var(--primary) !important; }

/* Mobile hamburger icon fix */
.hamburger-btn {
  position: relative;
  flex-direction: column;
  gap: 4px;
  flex-shrink: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.hamburger-btn .hamburger-line {
  display: block !important;
  width: 20px !important;
  height: 2px !important;
  min-width: 20px;
  min-height: 2px;
  background: currentColor !important;
  border-radius: 2px;
  opacity: 1 !important;
  transition: transform .2s ease, opacity .2s ease;
}
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(2) { opacity: 0 !important; }
.hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 768px) {
  .header-actions { display:flex !important; align-items:center; gap:8px; }
  .hamburger-btn { display:flex !important; visibility:visible !important; opacity:1 !important; }
  .mobile-nav-drawer { top: var(--header-height, 72px); }
}

/* MOBILE MENU FINAL FIX v6 */
@media (max-width:768px){.site-header{overflow:visible!important}.site-header>.mobile-nav-drawer{position:absolute!important;top:100%!important;left:0!important;right:0!important;bottom:auto!important;width:100vw!important;height:calc(100vh - var(--header-height,72px))!important;max-height:calc(100vh - var(--header-height,72px))!important;z-index:10001!important;display:none!important;visibility:hidden!important;opacity:0!important;transform:translateY(-8px)}.site-header>.mobile-nav-drawer.active{display:block!important;visibility:visible!important;opacity:1!important;transform:translateY(0)}.site-header>.mobile-nav-drawer .mobile-nav-list{min-height:100%;background:var(--bg-surface,#fff)!important;box-shadow:0 14px 30px rgba(0,0,0,.16)} }
@media (min-width:769px){.site-header>.mobile-nav-drawer{display:none!important}}


/* SEO editorial content */
.seo-guide{max-width:900px;margin:42px auto;padding:32px;border:1px solid var(--border-color);border-radius:24px;background:var(--bg-card);box-shadow:var(--shadow-md)}
.seo-guide .section-header{margin-bottom:20px}.seo-guide h2{margin-bottom:14px}.seo-guide h3{margin:24px 0 8px;color:var(--text-primary);font-size:1.08rem}.seo-guide p{color:var(--text-secondary);line-height:1.82;font-size:1rem}.seo-faqs{margin-top:24px;padding-top:8px;border-top:1px solid var(--border-color)}.seo-faq{padding:14px 0;border-bottom:1px solid var(--border-color)}.seo-faq h3{margin:0 0 7px;font-size:1rem}.seo-faq p{font-size:.96rem}
@media(max-width:768px){.seo-guide{margin:28px 16px;padding:22px;border-radius:18px}.seo-guide p{font-size:.96rem;line-height:1.72}}

/* Theme switcher removed from the public UI. */
.theme-toggle-btn{display:none!important}

/* TOP NAV RESTORE v10: keep the primary menu visible on tablet/mobile.
   The nav itself may scroll horizontally, but the page never gets horizontal overflow. */
@media (max-width:1100px){
  :root{--header-height:116px!important}
  html,body{overflow-x:hidden!important}
  .site-header{height:var(--header-height)!important;overflow:visible!important}
  .header-inner{height:64px!important;min-height:64px!important;padding:0 16px!important;gap:.6rem!important}
  .main-nav{
    display:flex!important;
    position:absolute!important;
    left:0!important;right:0!important;bottom:0!important;
    width:100%!important;height:52px!important;
    min-width:0!important;
    padding:0 12px!important;
    margin:0!important;
    gap:2px!important;
    flex-direction:row!important;
    align-items:center!important;
    overflow-x:auto!important;overflow-y:visible!important;
    white-space:nowrap!important;
    scrollbar-width:none!important;
    background:rgba(248,250,252,.96)!important;
    border-top:1px solid var(--border-color)!important;
    -webkit-overflow-scrolling:touch;
  }
  .main-nav::-webkit-scrollbar{display:none!important}
  .main-nav .nav-item{width:auto!important;min-width:max-content!important;flex:0 0 auto!important}
  .main-nav .nav-link{width:auto!important;min-width:max-content!important;white-space:nowrap!important;padding:.55rem .72rem!important;font-size:.88rem!important}
  .main-nav .dropdown-menu{display:none!important}
  .header-actions{display:none!important}
  .mobile-nav-drawer{display:none!important}
  .main-content{padding-top:var(--header-height)!important}
}

@media (max-width:480px){
  :root{--header-height:112px!important}
  .header-inner{height:60px!important;min-height:60px!important}
  .main-nav{height:52px!important;padding-left:8px!important;padding-right:8px!important}
  .main-nav .nav-link{font-size:.84rem!important;padding:.5rem .62rem!important}
}


/* V11 modern category navigation */
.main-nav{gap:6px}
.main-nav .nav-item.has-dropdown>.nav-link{padding:10px 12px;border:1px solid transparent}
.main-nav .nav-item.has-dropdown>.nav-link:hover{border-color:rgba(79,70,229,.14);box-shadow:0 6px 18px rgba(79,70,229,.08)}
.main-nav .nav-item:nth-child(3)>.nav-link:hover{background:linear-gradient(135deg,rgba(14,165,233,.08),rgba(79,70,229,.08))}
.main-nav .nav-item:nth-child(4)>.nav-link:hover{background:linear-gradient(135deg,rgba(99,102,241,.08),rgba(168,85,247,.08))}
.main-nav .nav-item:nth-child(5)>.nav-link:hover{background:linear-gradient(135deg,rgba(16,185,129,.08),rgba(20,184,166,.08))}
.dropdown-menu{min-width:390px;padding:10px;display:grid;grid-template-columns:1fr 1fr;gap:5px;border-radius:18px;box-shadow:0 20px 55px rgba(15,23,42,.16);border-color:rgba(100,116,139,.16);}
.dropdown-menu:before{content:'';grid-column:1/-1;height:3px;border-radius:99px;background:linear-gradient(90deg,#4f46e5,#06b6d4);margin:-10px -10px 5px}
.dropdown-link{display:flex;align-items:center;gap:9px;padding:10px 9px!important;min-height:48px;font-size:.82rem;font-weight:600;background:rgba(248,250,252,.7);border:1px solid transparent;transition:.2s ease}
.dropdown-link:hover{padding-left:9px!important;background:#fff;border-color:rgba(79,70,229,.14);box-shadow:0 7px 18px rgba(15,23,42,.08);transform:translateY(-1px)}
.tool-mini-icon{width:29px;height:29px;flex:0 0 29px;display:grid;place-items:center;border-radius:9px;background:linear-gradient(135deg,#eef2ff,#e0f2fe);color:#4f46e5;font-size:13px;box-shadow:inset 0 0 0 1px rgba(79,70,229,.08)}
.tool-mini-text{line-height:1.15}.tool-mini-sub{display:block;color:#94a3b8;font-size:.68rem;font-weight:500;margin-top:3px}
@media(max-width:900px){.dropdown-menu{min-width:340px;grid-template-columns:1fr}.dropdown-link{min-height:44px}.main-nav{gap:2px}}
@media(max-width:640px){.dropdown-menu{position:fixed;left:8px;right:8px;top:112px;width:auto;min-width:0;max-height:calc(100vh - 130px);overflow-y:auto}.main-nav .nav-link{white-space:nowrap;font-size:.82rem;padding:9px 10px}}

.section-kicker{display:inline-flex;align-items:center;padding:5px 10px;border-radius:999px;background:linear-gradient(135deg,#eef2ff,#ecfeff);color:#4f46e5;font-size:.66rem;font-weight:800;letter-spacing:.08em;margin-bottom:8px;border:1px solid rgba(79,70,229,.1)}

/* V14 NAVIGATION FINAL — desktop top nav + mobile hamburger drawer */
:root{--nav-mobile-height:64px;--nav-desktop-height:72px}
html{overflow-x:hidden!important}
body{overflow-x:hidden!important}
.site-header{position:sticky!important;top:0!important;left:0!important;right:0!important;width:100%!important;height:var(--nav-desktop-height)!important;min-height:var(--nav-desktop-height)!important;z-index:10000!important;overflow:visible!important;background:rgba(255,255,255,.96)!important;border-bottom:1px solid #e7edf6!important;backdrop-filter:blur(18px)!important;-webkit-backdrop-filter:blur(18px)!important}
.site-header .header-inner{height:100%!important;min-height:var(--nav-desktop-height)!important;display:flex!important;align-items:center!important;gap:18px!important;padding-left:16px!important;padding-right:16px!important}
.site-header .brand-logo{flex:0 0 auto!important;display:flex!important;align-items:center!important}
.site-header .main-nav{display:flex!important;align-items:center!important;justify-content:flex-start!important;gap:3px!important;flex:1 1 auto!important;min-width:0!important;overflow:visible!important;white-space:nowrap!important}
.site-header .main-nav .nav-item{display:block!important;position:relative!important;flex:0 0 auto!important}
.site-header .main-nav .nav-link{display:inline-flex!important;align-items:center!important;justify-content:center!important;white-space:nowrap!important;padding:10px 11px!important;border-radius:11px!important;font-size:14px!important;font-weight:700!important;color:#243452!important;text-decoration:none!important}
.site-header .main-nav .nav-link:hover,.site-header .main-nav .nav-link:focus-visible{background:#eef4ff!important;color:#1d4ed8!important}
.site-header .main-nav .dropdown-menu{position:absolute!important;top:calc(100% + 8px)!important;left:0!important;right:auto!important;width:320px!important;max-width:min(92vw,420px)!important;max-height:70vh!important;overflow:auto!important;display:grid!important;grid-template-columns:1fr 1fr!important;gap:5px!important;padding:10px!important;background:#fff!important;border:1px solid #e2e8f0!important;border-radius:18px!important;box-shadow:0 24px 60px rgba(15,23,42,.16)!important;opacity:0!important;visibility:hidden!important;transform:translateY(7px)!important;pointer-events:none!important;transition:opacity .18s ease,transform .18s ease,visibility .18s ease!important;z-index:10020!important}
.site-header .main-nav .nav-item:hover>.dropdown-menu,.site-header .main-nav .nav-item:focus-within>.dropdown-menu{opacity:1!important;visibility:visible!important;transform:translateY(0)!important;pointer-events:auto!important}
.site-header .main-nav .dropdown-link{display:flex!important;align-items:center!important;gap:8px!important;padding:9px!important;border-radius:11px!important;min-width:0!important}
.site-header .main-nav .dropdown-link:hover{background:#f3f6ff!important}
.site-header .header-actions{display:none!important;margin-left:auto!important;flex:0 0 auto!important}
.site-header .hamburger-btn{position:relative!important;width:44px!important;height:44px!important;display:none!important;flex-direction:column!important;align-items:center!important;justify-content:center!important;gap:5px!important;border:1px solid #dbe4f0!important;border-radius:13px!important;background:#fff!important;color:#1e3a8a!important;cursor:pointer!important;box-shadow:0 6px 18px rgba(15,23,42,.07)!important}
.site-header .hamburger-btn .hamburger-line{display:block!important;width:21px!important;height:2.5px!important;background:currentColor!important;border-radius:3px!important;transition:transform .2s ease,opacity .2s ease!important}
.site-header .hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(1){transform:translateY(7.5px) rotate(45deg)!important}
.site-header .hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(2){opacity:0!important}
.site-header .hamburger-btn[aria-expanded="true"] .hamburger-line:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)!important}
.site-header>.mobile-nav-drawer{display:none!important;position:absolute!important;top:100%!important;left:0!important;right:0!important;width:100%!important;height:calc(100dvh - var(--nav-mobile-height))!important;min-height:calc(100vh - var(--nav-mobile-height))!important;max-height:calc(100dvh - var(--nav-mobile-height))!important;z-index:10050!important;background:#fff!important;border-top:1px solid #e6edf6!important;box-shadow:0 24px 55px rgba(15,23,42,.18)!important;overflow:hidden!important}
.site-header>.mobile-nav-drawer.active{display:block!important}
.site-header>.mobile-nav-drawer .mobile-nav-list{height:100%!important;min-height:100%!important;overflow-y:auto!important;overscroll-behavior:contain!important;-webkit-overflow-scrolling:touch!important;display:flex!important;flex-direction:column!important;padding:16px 16px 32px!important;gap:4px!important;background:linear-gradient(180deg,#fff 0%,#f8fbff 100%)!important}
.site-header>.mobile-nav-drawer .mobile-nav-link{display:flex!important;align-items:center!important;min-height:48px!important;padding:12px 14px!important;border-radius:13px!important;color:#1f2f4a!important;font-size:15px!important;font-weight:700!important;text-decoration:none!important;background:rgba(255,255,255,.86)!important;border:1px solid transparent!important}
.site-header>.mobile-nav-drawer .mobile-nav-link:hover,.site-header>.mobile-nav-drawer .mobile-nav-link:focus-visible{background:#eef4ff!important;color:#1d4ed8!important;border-color:#dbe6ff!important}
.site-header>.mobile-nav-drawer .mobile-category-title{margin:14px 4px 4px!important;padding:7px 10px!important;border-radius:10px!important;background:#f1f5ff!important;color:#3159d8!important;font-size:11px!important;font-weight:850!important;letter-spacing:.08em!important;text-transform:uppercase!important}
body.nav-open{overflow:hidden!important}
@media (min-width:769px){
  .site-header .main-nav{display:flex!important}
  .site-header .header-actions{display:none!important}
  .site-header>.mobile-nav-drawer{display:none!important}
}
@media (max-width:768px){
  :root{--header-height:var(--nav-mobile-height)!important}
  .site-header{height:var(--nav-mobile-height)!important;min-height:var(--nav-mobile-height)!important}
  .site-header .header-inner{height:var(--nav-mobile-height)!important;min-height:var(--nav-mobile-height)!important;padding:0 12px!important}
  .site-header .brand-name{display:block!important;font-size:14px!important}
  .site-header .brand-icon{width:34px!important;height:34px!important}
  .site-header .main-nav{display:none!important}
  .site-header .header-actions{display:flex!important;align-items:center!important}
  .site-header .hamburger-btn{display:flex!important}
  .site-header>.mobile-nav-drawer{height:calc(100dvh - var(--nav-mobile-height))!important;min-height:calc(100vh - var(--nav-mobile-height))!important;max-height:calc(100dvh - var(--nav-mobile-height))!important}
}
@media (max-width:380px){
  .site-header .brand-name{font-size:13px!important}
  .site-header .hamburger-btn{width:42px!important;height:42px!important}
  .site-header>.mobile-nav-drawer .mobile-nav-list{padding-left:12px!important;padding-right:12px!important}
}


/* V16 NAV FIX: dropdown triggers are buttons, never page anchors. */
.site-header .main-nav .nav-link.nav-dropdown-trigger{
  appearance:none!important;-webkit-appearance:none!important;
  border:0!important;background:transparent!important;
  font:inherit!important;cursor:pointer!important;
  margin:0!important;line-height:1.2!important;
}
.site-header .main-nav .nav-link.nav-dropdown-trigger:focus-visible{
  outline:3px solid rgba(59,130,246,.25)!important;outline-offset:2px!important;
}
.site-header .main-nav .nav-item.dropdown-open>.dropdown-menu{
  opacity:1!important;visibility:visible!important;transform:translateY(0)!important;pointer-events:auto!important;
}
.site-header .main-nav .nav-item.dropdown-open>.nav-dropdown-trigger .dropdown-arrow{
  transform:rotate(180deg)!important;
}
@media(max-width:768px){
  .site-header .main-nav .nav-dropdown-trigger{display:none!important}
}
/* Hide social media icons on all pages */
.social-links,
.social-btn,
.footer-social-links,
.social-icon-btn {
    display: none !important;
}