/**
 * Agentic AI Tools 2026 - Optimized Frontend Design
 * Aesthetic Direction: Cyber-Brutalist Tech
 * Distinctive, futuristic, and memorable design that avoids generic AI aesthetics
 */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700;800&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  /* Primary Color Palette - Electric Cyan & Deep Navy */
  --color-primary: #00f0ff;
  --color-primary-dark: #00b8c4;
  --color-secondary: #7b2cbf;
  --color-accent: #ff6b35;
  --color-success: #39ff14;
  --color-warning: #ffcc00;
  --color-error: #ff3366;

  /* Neutral Palette */
  --color-bg: #0a0e1a;
  --color-bg-secondary: #111827;
  --color-bg-tertiary: #1f2937;
  --color-text: #e5e7eb;
  --color-text-muted: #9ca3af;
  --color-border: #374151;

  /* Gradient Definitions */
  --gradient-primary: linear-gradient(135deg, #00f0ff 0%, #7b2cbf 100%);
  --gradient-secondary: linear-gradient(135deg, #ff6b35 0%, #ff3366 100%);
  --gradient-dark: linear-gradient(180deg, #0a0e1a 0%, #111827 100%);
  --gradient-glow: radial-gradient(circle at center, rgba(0, 240, 255, 0.15) 0%, transparent 70%);

  /* Typography */
  --font-display: 'JetBrains Mono', monospace;
  --font-body: 'Space Grotesk', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

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

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(0, 240, 255, 0.3);
  --shadow-glow-accent: 0 0 30px rgba(255, 107, 53, 0.3);

  /* 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: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(circle at 20% 50%, rgba(0, 240, 255, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(123, 44, 191, 0.03) 0%, transparent 50%);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Grid Pattern Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  pointer-events: none;
  z-index: 0;
}

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

h1 {
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  position: relative;
  padding-left: var(--space-lg);
}

h2::before {
  content: '//';
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 600;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-muted);
}

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

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

a:hover::after {
  width: 100%;
}

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

/* Focus States */
*:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 240, 255, 0.1);
  transition: all var(--transition-base);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  position: relative;
}

.nav-logo::before {
  content: '>';
  color: var(--color-primary);
  margin-right: var(--space-sm);
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  list-style: none;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  display: none;
}

.nav-link:hover {
  color: var(--color-primary);
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

/* Hero Section */
.hero {
  position: relative;
  padding: var(--space-4xl) var(--space-xl);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 80vh;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(
    from 0deg at 50% 50%,
    rgba(0, 240, 255, 0.1) 0deg,
    transparent 60deg,
    rgba(123, 44, 191, 0.1) 120deg,
    transparent 180deg,
    rgba(0, 240, 255, 0.1) 240deg,
    transparent 300deg
  );
  animation: hero-rotate 30s linear infinite;
}

@keyframes hero-rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-lg);
  text-shadow:
    0 0 40px rgba(0, 240, 255, 0.3),
    0 0 80px rgba(0, 240, 255, 0.1);
  animation: title-glow 3s ease-in-out infinite alternate;
}

@keyframes title-glow {
  from {
    text-shadow:
      0 0 40px rgba(0, 240, 255, 0.3),
      0 0 80px rgba(0, 240, 255, 0.1);
  }
  to {
    text-shadow:
      0 0 60px rgba(0, 240, 255, 0.5),
      0 0 120px rgba(0, 240, 255, 0.2);
  }
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.5rem);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2xl);
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: var(--space-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: left var(--transition-slow);
}

.btn:hover::before {
  left: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-bg);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(0, 240, 255, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: rgba(0, 240, 255, 0.1);
  transform: translateY(-2px);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  max-width: 1200px;
  margin: calc(var(--space-3xl) * -1) auto 0;
  padding: 0 var(--space-xl);
  position: relative;
  z-index: 10;
}

.stat-card {
  background: rgba(17, 24, 39, 0.8);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Section Styling */
section {
  position: relative;
  z-index: 1;
}

.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-4xl) var(--space-xl);
}

.section-intro {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  margin-bottom: var(--space-3xl);
}

/* Product Cards */
.product-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  margin-bottom: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateX(8px);
}

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

.product-badge {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  margin-right: var(--space-md);
}

.product-badge-primary {
  background: rgba(0, 240, 255, 0.15);
  color: var(--color-primary);
  border: 1px solid rgba(0, 240, 255, 0.3);
}

.product-rating {
  color: var(--color-warning);
  font-size: 1.25rem;
  letter-spacing: 0.05em;
}

.product-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: var(--space-md) 0;
  color: var(--color-text);
}

.product-description {
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  line-height: 1.8;
}

.product-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.meta-item {
  background: rgba(0, 240, 255, 0.05);
  border: 1px solid rgba(0, 240, 255, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-md);
}

.meta-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

.meta-value {
  font-size: 0.875rem;
  color: var(--color-text);
}

/* Comparison Table */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-secondary);
}

.comparison-table thead {
  background: rgba(0, 240, 255, 0.05);
  border-bottom: 2px solid var(--color-primary);
}

.comparison-table th {
  padding: var(--space-lg);
  text-align: left;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
}

.comparison-table td {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
}

.comparison-table tbody tr {
  transition: all var(--transition-fast);
}

.comparison-table tbody tr:hover {
  background: rgba(0, 240, 255, 0.03);
}

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

/* Category Cards */
.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-3xl);
}

.category-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.category-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.category-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.category-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.category-links li {
  margin-bottom: var(--space-sm);
}

.category-links a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

/* FAQ Section */
.faq-item {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

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

.faq-summary {
  padding: var(--space-lg);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text);
  user-select: none;
  transition: all var(--transition-fast);
}

.faq-summary:hover {
  color: var(--color-primary);
  padding-left: calc(var(--space-lg) + var(--space-sm));
}

.faq-icon {
  color: var(--color-primary);
  transition: transform var(--transition-base);
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-content {
  padding: 0 var(--space-lg) var(--space-lg);
  color: var(--color-text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--color-border);
  margin-top: 0;
  padding-top: var(--space-lg);
}

/* Email Subscription */
.subscription-section {
  background: var(--gradient-primary);
  padding: var(--space-4xl) var(--space-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.subscription-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.5;
}

.subscription-content {
  position: relative;
  z-index: 1;
  max-width: 600px;
  margin: 0 auto;
}

.subscription-form {
  display: flex;
  gap: var(--space-md);
  max-width: 500px;
  margin: var(--space-xl) auto 0;
}

.subscription-input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  font-family: var(--font-body);
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  color: white;
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.subscription-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.subscription-input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.15);
}

.subscription-button {
  padding: var(--space-md) var(--space-xl);
  background: var(--color-bg);
  color: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition-base);
}

.subscription-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

/* Footer */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-3xl) var(--space-xl) var(--space-xl);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-xl);
}

.footer-section h4 {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

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

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

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  max-width: 1200px;
  margin: var(--space-xl) auto 0;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero {
    padding: var(--space-3xl) var(--space-md);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .main-content {
    padding: var(--space-2xl) var(--space-md);
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .subscription-form {
    flex-direction: column;
  }

  .product-meta {
    grid-template-columns: 1fr;
  }
}

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

  h1 {
    font-size: 2rem;
  }
}

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

.glow {
  text-shadow: 0 0 20px rgba(0, 240, 255, 0.5);
}

.border-glow {
  box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

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

/* Print Styles */
@media print {
  .nav,
  .hero,
  .subscription-section,
  .btn {
    display: none;
  }

  body {
    background: white;
    color: black;
  }

  .product-card,
  .faq-item {
    page-break-inside: avoid;
    border: 1px solid #ccc;
    box-shadow: none;
  }
}