:root {
  /* Premium Color Palette (HSL) */
  --color-bg-deep: hsl(220, 20%, 10%);
  --color-bg-card: hsl(220, 20%, 14%);
  --color-bg-card-hover: hsl(220, 20%, 18%);

  --color-primary: hsl(250, 100%, 70%);
  /* Electric Violet */
  --color-primary-glow: hsl(250, 100%, 70%, 0.5);

  --color-accent: hsl(170, 100%, 45%);
  /* Cyan/Teal */
  --color-accent-glow: hsl(170, 100%, 45%, 0.5);

  --color-text-main: hsl(0, 0%, 100%);
  --color-text-muted: hsl(220, 10%, 70%);

  /* Typography */
  --font-main: 'Outfit', 'Inter', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;

  /* Borders & Glass */
  --radius-md: 12px;
  --radius-lg: 20px;
  --border-glass: 1px solid rgba(255, 255, 255, 0.1);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

body {
  background-color: var(--color-bg-deep);
  color: var(--color-text-main);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Typography */
h1,
h2,
h3 {
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: 3.5rem;
  background: linear-gradient(135deg, #fff 0%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--spacing-sm);
}

.hero p {
  margin-left: auto;
  margin-right: auto;
}

h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
}

p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 60ch;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all 0.2s ease;
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.hero {
  padding: var(--spacing-lg) 0;
  text-align: center;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  z-index: -1;
  opacity: 0.4;
  pointer-events: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

/* Card Component */
.card {
  background: var(--color-bg-card);
  border: var(--border-glass);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  position: relative;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-main);
}

.card .badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge.free {
  background: rgba(34, 197, 94, 0.2);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge.paid {
  background: rgba(234, 179, 8, 0.2);
  color: #facc15;
  border: 1px solid rgba(234, 179, 8, 0.3);
}

.card-footer {
  margin-top: auto;
  padding-top: var(--spacing-md);
}

/* Button Component */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
  background: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px var(--color-primary-glow);
}

.btn:hover {
  transform: scale(1.02);
  box-shadow: 0 6px 20px var(--color-primary-glow);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  box-shadow: none;
  border: var(--border-glass);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

/* Nav */
nav {
  display: flex;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: var(--border-glass);
  margin-bottom: var(--spacing-md);
}

.tool-header {
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.tool-header .badge {
  margin-bottom: 0.5rem;
  /* Reduced space */
  display: inline-block;
}

.tool-header h1 {
  margin-bottom: 0.5rem;
}

.tool-header p {
  margin-left: auto;
  margin-right: auto;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--color-primary);
}

.nav-links {
  display: flex;
  gap: var(--spacing-sm);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links li a {
  color: var(--color-text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.nav-links li a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.btn-nav {
  background: var(--color-primary);
  color: #fff !important;
  padding: 0.5rem 1rem !important;
}

.btn-nav:hover {
  background: var(--color-primary-glow);
}

@media (max-width: 768px) {
  nav {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.delay-1 {
  animation-delay: 0.1s;
  opacity: 0;
}

.delay-2 {
  animation-delay: 0.2s;
  opacity: 0;
}

.delay-3 {
  animation-delay: 0.3s;
  opacity: 0;
}

/* Shared Feature Grids */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
  text-align: left;
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.feature-card h4 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
  font-size: 1.2rem;
}

.feature-check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

.feature-check-list li {
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-muted);
}

.feature-check-list li::before {
  content: '✓';
  color: var(--color-accent);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Demo Visuals */
.demo-container {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: var(--border-glass);
  padding: var(--spacing-md);
  margin: var(--spacing-md) 0;
  position: relative;
  overflow: hidden;
}

.demo-ui-mockup {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  opacity: 0.8;
}

.demo-bar {
  height: 12px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 6px;
  width: 100%;
}

.demo-bar.w-75 {
  width: 75%;
}

.demo-bar.w-50 {
  width: 50%;
}

.demo-bar.accent {
  background: var(--color-primary);
}