:root {
  --color-bg: #121212;
  --color-bg-secondary: #1e1e1e;
  --color-text: #f5f5f5;
  --color-text-muted: #a0a0a0;
  --color-primary: #ff6b35; /* Neon Orange */
  --color-primary-hover: #ff8c61;
  --color-secondary: #8e44ad; /* Purple */
  --color-border: rgba(255, 255, 255, 0.1);
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  --spacing-sm: clamp(0.5rem, 2vw, 1rem);
  --spacing-md: clamp(1rem, 4vw, 2rem);
  --spacing-lg: clamp(2rem, 8vw, 4rem);
  --spacing-xl: clamp(4rem, 12vw, 8rem);
}

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

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-family);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3 {
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-text) 0%, #b0b0b0 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-md);
  text-align: center;
}

p {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

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

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  background: rgba(18, 18, 18, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.25rem;
}

.brand img {
  height: 40px;
  width: auto;
  border-radius: 8px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.4);
}

.btn-primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.6);
}

/* Hero Section */
.hero {
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

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

.hero-content {
  max-width: 600px;
}

.hero-visual {
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
  border: 1px solid var(--color-border);
  transform: perspective(1000px) rotateY(-5deg);
  transition: transform 0.5s ease;
}

.hero-visual:hover {
  transform: perspective(1000px) rotateY(0deg);
}

.hero-visual img {
  width: 100%;
  height: auto;
  display: block;
}

/* Features Grid */
.features {
  padding: var(--spacing-lg) 0 var(--spacing-xl);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background: var(--color-bg-secondary);
  padding: var(--spacing-md);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-secondary);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(142, 68, 173, 0.1);
  color: var(--color-secondary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 24px;
}

.feature-card h3 {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}