/* ============================================================
   AI TOOLS DAILY - DESIGN SYSTEM 2026
   Editorial + Bold Modern / Dark & Light Mode
   ============================================================ */

/* CSS Custom Properties - Design Tokens */
:root {
  /* Typography Scale */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', var(--font-sans);
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3.5rem);
  --text-5xl: clamp(3rem, 2rem + 5vw, 5rem);

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Layout */
  --max-width: 1400px;
  --content-width: 720px;
  --header-height: 72px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;
}

/* Light Theme (Default) */
[data-theme="light"] {
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-elevated: #ffffff;
  --color-bg-hover: #f1f5f9;

  --color-text: #0f172a;
  --color-text-secondary: #475569;
  --color-text-tertiary: #94a3b8;
  --color-text-inverse: #ffffff;

  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;

  --color-accent: #6366f1;
  --color-accent-hover: #4f46e5;
  --color-accent-subtle: rgba(99, 102, 241, 0.1);

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
  --gradient-subtle: linear-gradient(180deg, rgba(99, 102, 241, 0.05) 0%, transparent 100%);

  --shadow-color: 220 3% 15%;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.05);
}

/* Dark Theme */
[data-theme="dark"] {
  --color-bg: #0a0a0f;
  --color-bg-alt: #12121a;
  --color-bg-elevated: #1a1a24;
  --color-bg-hover: #252532;

  --color-text: #f8fafc;
  --color-text-secondary: #a1a1aa;
  --color-text-tertiary: #71717a;
  --color-text-inverse: #0a0a0f;

  --color-border: #27272a;
  --color-border-strong: #3f3f46;

  --color-accent: #818cf8;
  --color-accent-hover: #a5b4fc;
  --color-accent-subtle: rgba(129, 140, 248, 0.15);

  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-error: #f87171;

  --gradient-primary: linear-gradient(135deg, #818cf8 0%, #a78bfa 50%, #f472b6 100%);
  --gradient-subtle: linear-gradient(180deg, rgba(129, 140, 248, 0.08) 0%, transparent 100%);

  --shadow-color: 220 40% 2%;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.2);
}

/* ============================================================
   BASE STYLES
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Selection */
::selection {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

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

/* Links */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-2xl); }
h4 { font-size: var(--text-xl); }
h5 { font-size: var(--text-lg); }
h6 { font-size: var(--text-base); }

p {
  margin-bottom: var(--space-6);
}

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

/* ============================================================
   LAYOUT
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-8);
  }
}

.content-wrapper {
  max-width: var(--content-width);
  margin: 0 auto;
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ============================================================
   HEADER & NAVIGATION
   ============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: var(--z-sticky);
  transition: all var(--transition-base);
}

.header.scrolled {
  background: rgba(var(--color-bg), 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="light"] .header.scrolled {
  background: rgba(255, 255, 255, 0.85);
}

[data-theme="dark"] .header.scrolled {
  background: rgba(10, 10, 15, 0.85);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-8);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  color: white;
  font-weight: 700;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-bg-hover);
}

.nav-link.active {
  color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Search Button */
.search-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-tertiary);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-btn:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text-secondary);
}

.search-btn kbd {
  padding: 2px 6px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-family: var(--font-sans);
}

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

.theme-toggle:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

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

.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }

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

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--color-text);
  cursor: pointer;
}

@media (max-width: 768px) {
  .nav { display: none; }
  .search-btn span { display: none; }
  .search-btn kbd { display: none; }
  .mobile-menu-btn { display: flex; }
}

/* ============================================================
   HERO SECTION
   ============================================================ */

.hero {
  padding: calc(var(--header-height) + var(--space-16)) 0 var(--space-16);
  background: var(--gradient-subtle);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 150%;
  height: 100%;
  background: radial-gradient(ellipse at center top, var(--color-accent-subtle) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent-subtle);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease-out;
}

.hero-title {
  font-size: var(--text-5xl);
  font-weight: 800;
  margin-bottom: var(--space-6);
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-cta {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
  color: white;
}

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

.btn-secondary:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}

.btn-ghost:hover {
  background: var(--color-bg-hover);
  color: var(--color-text);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
}

/* ============================================================
   ARTICLE CARDS
   ============================================================ */

.articles-section {
  padding: var(--space-16) 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.section-title {
  font-size: var(--text-2xl);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.section-title::before {
  content: '';
  width: 4px;
  height: 1em;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

/* Category Filter */
.category-filter {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.filter-btn.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

/* Article Grid */
.articles-grid {
  display: grid;
  gap: var(--space-6);
}

.articles-grid.layout-featured {
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
}

.articles-grid.layout-featured .article-card:first-child {
  grid-row: span 2;
}

@media (max-width: 1024px) {
  .articles-grid.layout-featured {
    grid-template-columns: 1fr;
  }
  .articles-grid.layout-featured .article-card:first-child {
    grid-row: span 1;
  }
}

.articles-grid.layout-grid {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

/* Article Card */
.article-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.article-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15), 0 8px 16px rgba(0,0,0,0.1);
  transform: translateY(-6px);
}

.article-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
  z-index: 1;
}

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

.article-card-image {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--gradient-subtle);
  overflow: hidden;
}

.article-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.article-card:hover .article-card-image img {
  transform: scale(1.05);
}

.article-card-category {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}

.article-card-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: var(--space-6);
}

.article-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.article-card-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.article-card-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  line-height: 1.3;
}

.article-card-title a {
  color: var(--color-text);
  text-decoration: none;
}

.article-card-title a:hover {
  color: var(--color-accent);
}

.article-card-excerpt {
  flex: 1;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
  margin-bottom: var(--space-4);
}

.article-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.article-card-tags {
  display: flex;
  gap: var(--space-2);
}

.tag {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
}

.read-more {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.read-more svg {
  transition: transform var(--transition-fast);
}

.article-card:hover .read-more svg {
  transform: translateX(4px);
}

/* Featured Card Variant */
.article-card.featured {
  min-height: 500px;
}

.article-card.featured .article-card-image {
  position: absolute;
  inset: 0;
  aspect-ratio: unset;
}

.article-card.featured .article-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 50%, transparent 100%);
}

.article-card.featured .article-card-content {
  position: relative;
  justify-content: flex-end;
  color: white;
  z-index: 1;
}

.article-card.featured .article-card-title {
  font-size: var(--text-3xl);
}

.article-card.featured .article-card-title a {
  color: white;
}

.article-card.featured .article-card-excerpt {
  color: rgba(255,255,255,0.8);
}

.article-card.featured .article-card-meta {
  color: rgba(255,255,255,0.6);
}

/* ============================================================
   SINGLE ARTICLE
   ============================================================ */

.article {
  padding-top: calc(var(--header-height) + var(--space-12));
  padding-bottom: var(--space-16);
}

.article-header {
  max-width: var(--content-width);
  margin: 0 auto var(--space-10);
  text-align: center;
}

.article-header .article-category {
  display: inline-block;
  padding: var(--space-1) var(--space-4);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
}

.article-header h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--space-6);
}

.article-header .article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.article-header .article-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Article Content */
.article-content {
  max-width: var(--content-width);
  margin: 0 auto;
}

.article-content h2 {
  margin: var(--space-12) 0 var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.article-content h3 {
  margin: var(--space-8) 0 var(--space-4);
}

.article-content p {
  margin-bottom: var(--space-6);
}

.article-content ul,
.article-content ol {
  margin: 0 0 var(--space-6) var(--space-6);
}

.article-content li {
  margin-bottom: var(--space-2);
}

.article-content blockquote {
  margin: var(--space-8) 0;
  padding: var(--space-6) var(--space-8);
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
}

.article-content code {
  padding: 2px 6px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

.article-content pre {
  margin: var(--space-6) 0;
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.article-content pre code {
  padding: 0;
  background: none;
  font-size: var(--text-sm);
}

.article-content table {
  width: 100%;
  margin: var(--space-6) 0;
  border-collapse: collapse;
}

.article-content th,
.article-content td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border: 1px solid var(--color-border);
}

.article-content th {
  background: var(--color-bg-alt);
  font-weight: 600;
}

.article-content img {
  margin: var(--space-8) 0;
  border-radius: var(--radius-lg);
}

/* CTA Box */
.cta-box {
  margin: var(--space-8) 0;
  padding: var(--space-8);
  background: var(--gradient-subtle);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-xl);
  text-align: center;
}

.cta-box h4 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.cta-box p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

/* Affiliate Disclosure */
.affiliate-disclosure {
  margin-top: var(--space-12);
  padding: var(--space-4) var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

/* Related Articles */
.related-articles {
  margin-top: var(--space-16);
  padding-top: var(--space-12);
  border-top: 1px solid var(--color-border);
}

.related-articles h3 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-8);
}

/* ============================================================
   NEWSLETTER
   ============================================================ */

.newsletter-section {
  padding: var(--space-16) 0;
  background: var(--gradient-subtle);
}

.newsletter-box {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter-box h3 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.newsletter-box p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-8);
}

.newsletter-form {
  display: flex;
  gap: var(--space-3);
  max-width: 440px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--color-accent);
}

.newsletter-form input::placeholder {
  color: var(--color-text-tertiary);
}

@media (max-width: 480px) {
  .newsletter-form {
    flex-direction: column;
  }
}

/* ============================================================
   SEARCH MODAL
   ============================================================ */

.search-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 10vh var(--space-6);
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.search-modal.active {
  opacity: 1;
  visibility: visible;
}

.search-modal-content {
  width: 100%;
  max-width: 640px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  transform: translateY(-20px) scale(0.95);
  transition: transform var(--transition-base);
  overflow: hidden;
}

.search-modal.active .search-modal-content {
  transform: translateY(0) scale(1);
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.search-input-wrapper svg {
  color: var(--color-text-tertiary);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  background: none;
  font-size: var(--text-lg);
  color: var(--color-text);
  outline: none;
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-results {
  max-height: 400px;
  overflow-y: auto;
}

.search-result-item {
  display: block;
  padding: var(--space-4) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

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

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.search-result-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.search-empty {
  padding: var(--space-10);
  text-align: center;
  color: var(--color-text-tertiary);
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  padding: var(--space-16) 0 var(--space-8);
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-brand {
  max-width: 280px;
}

.footer-brand .logo {
  margin-bottom: var(--space-4);
}

.footer-brand p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}

.footer-column h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-3);
}

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

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

@media (max-width: 640px) {
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* ============================================================
   ANIMATIONS
   ============================================================ */

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

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Scroll Animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }
.animate-on-scroll:nth-child(6) { transition-delay: 0.5s; }

/* ============================================================
   UTILITIES
   ============================================================ */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-4 { margin-top: var(--space-4); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-8 { margin-bottom: var(--space-8); }

.hidden { display: none; }

/* Main wrapper to push footer down */
.main-content {
  min-height: calc(100vh - var(--header-height));
}

/* ============================================================
   RATING STARS
   ============================================================ */

.rating-stars {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.rating-star {
  width: 18px;
  height: 18px;
  color: #fbbf24;
}

.rating-star.empty {
  color: var(--color-text-tertiary);
}

.rating-star.half {
  color: #fbbf24;
}

.rating-number {
  margin-left: var(--space-2);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.rating-stars-sm .rating-star {
  width: 14px;
  height: 14px;
}

.rating-stars-sm .rating-number {
  font-size: var(--text-xs);
}

.rating-stars-lg .rating-star {
  width: 24px;
  height: 24px;
}

.rating-stars-lg .rating-number {
  font-size: var(--text-lg);
}

/* ============================================================
   PROS/CONS BOX
   ============================================================ */

.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  margin: var(--space-8) 0;
}

@media (max-width: 640px) {
  .pros-cons {
    grid-template-columns: 1fr;
  }
}

.pros-cons-column {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
}

.pros-column {
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.cons-column {
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

[data-theme="dark"] .pros-column {
  background: rgba(52, 211, 153, 0.1);
  border-color: rgba(52, 211, 153, 0.25);
}

[data-theme="dark"] .cons-column {
  background: rgba(248, 113, 113, 0.1);
  border-color: rgba(248, 113, 113, 0.25);
}

.pros-cons-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-base);
  font-weight: 600;
  margin-bottom: var(--space-4);
}

.pros-cons-title svg {
  width: 20px;
  height: 20px;
}

.pros-column .pros-cons-title {
  color: var(--color-success);
}

.cons-column .pros-cons-title {
  color: var(--color-error);
}

.pros-list,
.cons-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.pros-list li,
.cons-list li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.pros-list li::before {
  content: '+';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.cons-list li::before {
  content: '−';
  position: absolute;
  left: 0;
  color: var(--color-error);
  font-weight: 700;
}

/* ============================================================
   CTA AFFILIATE BUTTON
   ============================================================ */

.cta-affiliate {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.cta-affiliate svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.cta-affiliate:hover svg {
  transform: translate(2px, -2px);
}

.cta-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
  color: white;
}

.cta-secondary {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.cta-secondary:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

/* ============================================================
   TOOL CARDS
   ============================================================ */

.tool-card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.tool-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.5s ease;
}

.tool-card:hover::after {
  left: 100%;
}

.tool-card:hover {
  border-color: var(--color-accent);
  box-shadow: 0 20px 40px rgba(99, 102, 241, 0.2), 0 8px 16px rgba(0,0,0,0.1);
  transform: translateY(-6px) scale(1.01);
}

.tool-card-featured {
  position: relative;
  border-color: var(--color-warning);
  background: linear-gradient(135deg, var(--color-bg-elevated) 0%, rgba(251, 191, 36, 0.05) 100%);
}

.tool-featured-badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: var(--color-warning);
  color: #1a1a1a;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.tool-card-logo {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-card-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-2);
}

.tool-card-logo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  font-weight: 700;
  font-size: var(--text-lg);
}

.tool-card-info {
  flex: 1;
  min-width: 0;
}

.tool-card-title {
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.tool-card-title a {
  color: var(--color-text);
  text-decoration: none;
}

.tool-card-title a:hover {
  color: var(--color-accent);
}

.tool-card-description {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-4);
  flex: 1;
}

.tool-card-categories {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.tool-category-tag {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  border-radius: var(--radius-full);
}

.tool-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

.tool-card-pricing {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pricing-badge {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.pricing-badge.free {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.pricing-amount {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.tool-card-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
}

.tool-card-link svg {
  width: 14px;
  height: 14px;
  transition: transform var(--transition-fast);
}

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

/* ============================================================
   TOOLS DIRECTORY PAGE
   ============================================================ */

.tools-hero {
  padding: calc(var(--header-height) + var(--space-12)) 0 var(--space-12);
  background: var(--gradient-subtle);
  text-align: center;
}

.tools-hero-content {
  max-width: 700px;
  margin: 0 auto;
}

.tools-hero-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  margin-bottom: var(--space-4);
}

.tools-hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
}

.tools-section {
  padding: var(--space-12) 0;
}

/* Filters */
.tools-filters {
  margin-bottom: var(--space-8);
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.filter-group {
  margin-bottom: var(--space-4);
}

.filter-group:last-child {
  margin-bottom: 0;
}

.filter-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-2);
}

.filter-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.filter-row .filter-group {
  margin-bottom: 0;
}

.filter-sort {
  margin-left: auto;
}

.filter-select {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  cursor: pointer;
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.tools-results-info {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-6);
}

.tools-results-info span {
  font-weight: 600;
  color: var(--color-text);
}

/* Tools Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

@media (max-width: 640px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }
}

/* Empty State */
.tools-empty {
  text-align: center;
  padding: var(--space-16) var(--space-8);
}

.tools-empty svg {
  width: 64px;
  height: 64px;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.tools-empty h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.tools-empty p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

/* Categories Section */
.tools-categories-section {
  padding: var(--space-16) 0;
  background: var(--color-bg-alt);
}

.tools-categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.tools-category-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-6);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  transition: all var(--transition-base);
}

.tools-category-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.tools-category-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
}

.tools-category-icon svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}

.tools-category-card h3 {
  font-size: var(--text-base);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.tools-category-card p {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin: 0;
}

/* ============================================================
   SINGLE TOOL PAGE
   ============================================================ */

.breadcrumb {
  padding: calc(var(--header-height) + var(--space-4)) 0 var(--space-4);
  background: var(--color-bg-alt);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--text-sm);
}

.breadcrumb-list li::after {
  content: '/';
  margin-left: var(--space-2);
  color: var(--color-text-tertiary);
}

.breadcrumb-list li:last-child::after {
  display: none;
}

.breadcrumb-list a {
  color: var(--color-text-secondary);
}

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

.breadcrumb-list li:last-child {
  color: var(--color-text);
  font-weight: 500;
}

.tool-page {
  padding: var(--space-8) 0 var(--space-16);
}

.tool-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-10);
  align-items: start;
}

@media (max-width: 1024px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }
}

.tool-main {
  min-width: 0;
}

.tool-header {
  margin-bottom: var(--space-8);
}

.tool-header-top {
  display: flex;
  align-items: flex-start;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

@media (max-width: 640px) {
  .tool-header-top {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

.tool-logo-large {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tool-logo-large img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: var(--space-3);
}

.tool-logo-placeholder-large {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  color: white;
  font-weight: 700;
  font-size: var(--text-2xl);
}

.tool-header-info {
  flex: 1;
}

.tool-title {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-2);
}

.tool-tagline {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.tool-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.tool-meta-divider {
  color: var(--color-text-tertiary);
}

.tool-updated {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.tool-header-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

@media (max-width: 640px) {
  .tool-header-actions {
    justify-content: center;
  }
}

/* Quick Stats */
.tool-quick-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

@media (max-width: 768px) {
  .tool-quick-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat-card {
  padding: var(--space-4);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.stat-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-2);
}

.stat-value {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.stat-value .free-badge {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  margin-right: var(--space-1);
}

/* Tool Content */
.tool-content {
  margin-bottom: var(--space-8);
}

.tool-section {
  margin: var(--space-10) 0;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.tool-section h2 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-6);
}

.tool-features-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-3);
}

.tool-features-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
}

.tool-features-list svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-success);
  margin-top: 2px;
}

.tool-best-for {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.best-for-tag {
  padding: var(--space-2) var(--space-4);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 500;
}

.tool-alternatives-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.tool-alt-placeholder {
  padding: var(--space-6);
  background: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
  color: var(--color-text-tertiary);
}

/* Tool Sidebar */
.tool-sidebar {
  position: relative;
}

@media (max-width: 1024px) {
  .tool-sidebar {
    display: none;
  }
}

.tool-sidebar-sticky {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
}

.tool-quick-info {
  padding: var(--space-6);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-6);
}

.tool-quick-header {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.tool-quick-logo {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  background: var(--color-bg-alt);
  padding: var(--space-2);
}

.tool-quick-logo-placeholder {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
}

.tool-quick-title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-1);
}

.tool-quick-details {
  margin-bottom: var(--space-6);
}

.tool-quick-row {
  display: flex;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.tool-quick-row:last-child {
  border-bottom: none;
}

.tool-quick-label {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.tool-quick-value {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  text-align: right;
}

.tool-quick-value .free-badge {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  margin-left: var(--space-1);
}

.tool-quick-cta {
  margin-bottom: var(--space-4);
}

.tool-quick-cta .cta-affiliate {
  width: 100%;
  justify-content: center;
}

.tool-quick-alternatives {
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.tool-quick-alternatives .tool-quick-label {
  display: block;
  margin-bottom: var(--space-3);
}

.tool-alternatives-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tool-alt-link,
.tool-alt-text {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
}

.tool-alt-link:hover {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

/* Sidebar Related Tools */
.sidebar-section {
  padding: var(--space-6);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

.sidebar-section h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
}

.sidebar-tools-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.sidebar-tool-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.sidebar-tool-item:hover {
  background: var(--color-bg-hover);
}

.sidebar-tool-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  object-fit: contain;
  background: var(--color-bg);
  padding: 4px;
}

.sidebar-tool-logo-placeholder {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-xs);
  font-weight: 700;
}

.sidebar-tool-name {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.sidebar-tool-rating {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* ============================================================
   COMPARISON TABLE
   ============================================================ */

.comparison-table-wrapper {
  overflow-x: auto;
  margin: var(--space-8) 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  background: var(--color-bg-alt);
  font-weight: 600;
  white-space: nowrap;
}

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

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

.comparison-tool-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.comparison-logo {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-sm);
  object-fit: contain;
}

.check-icon {
  width: 18px;
  height: 18px;
  color: var(--color-success);
}

.x-icon {
  width: 18px;
  height: 18px;
  color: var(--color-error);
}

.cell-yes {
  color: var(--color-success);
}

.cell-no {
  color: var(--color-error);
}

.check-badge {
  display: inline-block;
  padding: 2px 6px;
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-weight: 500;
}

/* ============================================================
   PRICING TABLE
   ============================================================ */

.pricing-table {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin: var(--space-8) 0;
}

.pricing-tier {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.pricing-tier:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--card-shadow);
}

.pricing-tier.featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.pricing-tier-badge {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: var(--space-1) var(--space-4);
  background: var(--gradient-primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.pricing-tier-header {
  text-align: center;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-6);
}

.pricing-tier-name {
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.pricing-tier-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--space-1);
}

.price-amount {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
}

.price-period {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.pricing-tier-features {
  list-style: none;
  margin: 0 0 var(--space-8) 0;
  padding: 0;
  flex: 1;
}

.pricing-tier-features li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.pricing-tier-features svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--color-success);
  margin-top: 2px;
}

.pricing-tier-cta {
  margin-top: auto;
}

.pricing-tier-cta .cta-affiliate {
  width: 100%;
  justify-content: center;
}

/* ============================================================
   FEATURED TOOLS (Homepage)
   ============================================================ */

.featured-tools-section {
  padding: var(--space-12) 0;
  background: var(--color-bg-alt);
}

.featured-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

/* ============================================================
   HERO STATS (Social Proof)
   ============================================================ */

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

.hero-stat {
  text-align: center;
}

.hero-stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

.hero-stat-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--color-border);
}

@media (max-width: 640px) {
  .hero-stats {
    flex-direction: column;
    gap: var(--space-4);
  }
  
  .hero-stat-divider {
    width: 60px;
    height: 1px;
  }
}

/* ============================================================
   MOBILE MENU STYLES
   ============================================================ */

.nav.mobile-open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4);
  box-shadow: var(--shadow-lg);
}

.nav.mobile-open .nav-link {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
}

/* ============================================================
   COPY CODE BUTTON
   ============================================================ */

.copy-code-btn {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  padding: var(--space-2);
  background: var(--color-bg-hover);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  opacity: 0;
  transition: all var(--transition-fast);
}

pre:hover .copy-code-btn {
  opacity: 1;
}

.copy-code-btn:hover {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  border-color: var(--color-accent);
}

/* ============================================================
   TRUST BADGES
   ============================================================ */

.trust-section {
  padding: var(--space-8) 0;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.trust-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  flex-wrap: wrap;
}

.trust-badge {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
}

.trust-badge svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
}

/* ============================================================
   FEATURED BADGE ON ARTICLES
   ============================================================ */

.article-featured-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: var(--color-warning);
  color: #1a1a1a;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* ============================================================
   READING TIME BADGE
   ============================================================ */

.reading-time-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: var(--color-bg-alt);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

/* ============================================================
   INTERACTIVE ENHANCEMENTS
   ============================================================ */

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-lg);
}

.back-to-top:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.back-to-top:active {
  transform: translateY(0);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Enhanced Card Hover Effects */
.article-card,
.tool-card {
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.article-card:hover,
.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl), 0 0 40px rgba(99, 102, 241, 0.1);
  border-color: var(--color-accent);
}

/* Button Press Effect */
.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease;
}

.btn:active::after {
  width: 200%;
  height: 200%;
}

.btn:active {
  transform: scale(0.98);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  pointer-events: auto;
  animation: toastSlideIn 0.3s ease, toastSlideOut 0.3s ease 2.7s forwards;
}

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

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

.toast.info {
  border-left: 4px solid var(--color-accent);
}

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

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

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-alt) 25%,
    var(--color-bg-hover) 50%,
    var(--color-bg-alt) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Animated Counter */
.counter {
  display: inline-block;
}

.counter.counting {
  animation: countPulse 0.1s ease;
}

@keyframes countPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

/* Ripple Effect */
.ripple {
  position: relative;
  overflow: hidden;
}

.ripple-effect {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: scale(0);
  animation: ripple 0.6s linear;
  pointer-events: none;
}

@keyframes ripple {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Image Hover Zoom */
.article-card-image img {
  transition: transform var(--transition-slow);
}

.article-card:hover .article-card-image img {
  transform: scale(1.05);
}

/* Link Underline Animation */
.animated-link {
  position: relative;
  display: inline-block;
}

.animated-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

.animated-link:hover::after {
  width: 100%;
}

/* Floating Labels for Forms */
.form-group {
  position: relative;
  margin-bottom: var(--space-6);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-4);
  padding-top: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-subtle);
  outline: none;
}

.form-group label {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-tertiary);
  font-size: var(--text-base);
  transition: all var(--transition-fast);
  pointer-events: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
  top: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-accent);
}

/* Smooth Page Transitions */
.page-transition {
  animation: fadeIn 0.3s ease;
}

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

/* Progress Ring (for loading states) */
.progress-ring {
  transform: rotate(-90deg);
}

.progress-ring-circle {
  transition: stroke-dashoffset var(--transition-base);
  stroke-linecap: round;
}

/* Tooltip Styles */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-4px);
  padding: var(--space-2) var(--space-3);
  background: var(--color-text);
  color: var(--color-bg);
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-tooltip, 500);
}

[data-tooltip]::after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 6px solid transparent;
  border-top-color: var(--color-text);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

[data-tooltip]:hover::before,
[data-tooltip]:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Pulse Animation for CTAs */
.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
  }
  50% {
    box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
  }
}

/* Smooth Number Transitions */
.smooth-number {
  transition: all 0.3s ease;
  display: inline-block;
}

/* Better Focus Ring for Accessibility */
*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Hover Card Glow Effect */
.glow-on-hover {
  transition: all var(--transition-base);
}

.glow-on-hover:hover {
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.2), var(--shadow-lg);
}

/* Staggered Animation for Lists */
.stagger-animation > * {
  opacity: 0;
  animation: staggerFadeIn 0.5s ease forwards;
}

.stagger-animation > *:nth-child(1) { animation-delay: 0.1s; }
.stagger-animation > *:nth-child(2) { animation-delay: 0.2s; }
.stagger-animation > *:nth-child(3) { animation-delay: 0.3s; }
.stagger-animation > *:nth-child(4) { animation-delay: 0.4s; }
.stagger-animation > *:nth-child(5) { animation-delay: 0.5s; }
.stagger-animation > *:nth-child(6) { animation-delay: 0.6s; }

@keyframes staggerFadeIn {
  to {
    opacity: 1;
  }
}

/* Clean Card Style */
.clean-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-base);
}

.clean-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}