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

/* variables */
:root {
  --bg-main: #030712;
  --bg-card: rgba(11, 15, 25, 0.65);
  --bg-card-hover: rgba(17, 24, 39, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  
  --text-primary: #f9fafb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  
  --color-primary: #8b5cf6; /* Violet */
  --color-primary-rgb: 139, 92, 246;
  --color-secondary: #06b6d4; /* Cyan */
  --color-secondary-rgb: 6, 182, 212;
  --color-accent: #10b981; /* Growth Emerald */
  --color-accent-rgb: 16, 185, 129;
  
  --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --gradient-growth: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-accent) 100%);
  --gradient-dark: linear-gradient(180deg, #090d1a 0%, #030712 100%);
  --gradient-text: linear-gradient(135deg, #ffffff 40%, #c7d2fe 100%);
  --gradient-text-growth: linear-gradient(135deg, #67e8f9 0%, #34d399 100%);
  
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.8);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.15);
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* Background mesh gradients (Stripe style) */
body::before {
  content: "";
  position: absolute;
  top: -10%;
  left: -20%;
  width: 150%;
  height: 120%;
  background: 
    radial-gradient(circle at 10% 20%, rgba(139, 92, 246, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 90% 10%, rgba(6, 182, 212, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 80%, rgba(16, 185, 129, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(139, 92, 246, 0.08) 0%, transparent 40%);
  z-index: -1;
  pointer-events: none;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

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

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(3, 7, 18, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-normal);
}

header.scrolled {
  background: rgba(3, 7, 18, 0.9);
  padding: 10px 0;
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Outfit', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo img {
  height: 36px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition-normal);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Hamburger mobile menu */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  transition: var(--transition-normal);
}

/* Sections */
section {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
  position: relative;
}

/* Typography Helpers */
.text-center { text-align: center; }
.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  color: var(--color-primary);
  margin-bottom: 20px;
}
.section-tag.growth {
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.2);
  color: var(--color-secondary);
}

.section-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 20px;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-title span.growth-text {
  background: var(--gradient-text-growth);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 60px;
}

/* Grid & Layout Helpers */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.flex-center { display: flex; justify-content: center; align-items: center; }

/* Scroll reveal class animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Keyframe animations */
@keyframes pulseGlow {
  0%, 100% {
    opacity: 0.6;
    transform: scale(1);
  }
  50% {
    opacity: 0.9;
    transform: scale(1.05);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Responsive queries */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .section-title { font-size: 2.4rem; }
}

@media (max-width: 768px) {
  section { padding: 60px 20px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; gap: 30px; }
  
  .menu-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 73px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 73px);
    background: rgba(3, 7, 18, 0.95);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 60px 24px;
    gap: 40px;
    transition: var(--transition-slow);
    z-index: 999;
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-actions {
    display: none; /* Can be placed inside nav-menu mobile */
  }
  
  .nav-menu .nav-actions-mobile {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 16px;
    margin-top: 20px;
  }
  
  .section-title { font-size: 2.1rem; }
}