/* ==========================================================================
   DESIGN SYSTEM & VARIABLES
   ========================================================================== */
:root {
  /* Color System */
  --bg-deep: #160B2E;
  --bg-dark: #24103F;
  --primary-purple: #6D28D9;
  --vivid-purple: #7C3AED;
  --soft-purple: #A78BFA;
  --lavender: #C4B5FD;
  --light-lavender: #EDE9FE;
  --white: #FFFFFF;
  --off-white: #F8F7FC;
  --dark-text: #17131F;
  --muted-text: #9CA3AF;
  --card-bg: rgba(36, 16, 63, 0.4);
  --glass-border: rgba(167, 139, 250, 0.15);
  
  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Transitions */
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-deep);
  color: var(--off-white);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  color: var(--white);
  font-weight: 700;
  line-height: 1.2;
}

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

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.text-gradient {
  background: linear-gradient(135deg, var(--white) 30%, var(--soft-purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.purple-gradient-text {
  background: linear-gradient(135deg, var(--soft-purple) 0%, var(--vivid-purple) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: 99px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-purple), var(--vivid-purple));
  color: var(--white);
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(124, 58, 237, 0.5);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--glass-border);
  color: var(--off-white);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(167, 139, 250, 0.1);
  border-color: var(--soft-purple);
  color: var(--white);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(124, 58, 237, 0.15);
  color: var(--soft-purple);
  border: 1px solid rgba(167, 139, 250, 0.3);
}

/* Header & Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: var(--transition-smooth);
}

.header.scrolled {
  padding: 1rem 0;
  background: rgba(22, 11, 46, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--white);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted-text);
}

.nav-link:hover, .nav-link.active {
  color: var(--white);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--white);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Layout Elements */
.section {
  padding: 6rem 0;
}

.section-header {
  margin-bottom: 3.5rem;
}

.section-header.center {
  text-align: center;
}

.section-title {
  font-size: 2.5rem;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  color: var(--muted-text);
  font-size: 1.1rem;
  max-width: 600px;
}

.section-header.center .section-subtitle {
  margin: 0 auto;
}

/* Glass Cards */
.glass-card {
  background: var(--card-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  padding: 2rem;
  transition: var(--transition-smooth);
}

.glass-card:hover {
  border-color: rgba(167, 139, 250, 0.4);
  transform: translateY(-4px);
}

/* Footer */
.footer {
  background: var(--bg-dark);
  border-top: 1px solid var(--glass-border);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand p {
  color: var(--muted-text);
  margin-top: 1rem;
  max-width: 320px;
}

.footer-title {
  font-size: 1rem;
  margin-bottom: 1.2rem;
  color: var(--white);
}

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

.footer-links li {
  margin-bottom: 0.6rem;
}

.footer-links a {
  color: var(--muted-text);
  font-size: 0.9rem;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--muted-text);
  font-size: 0.85rem;
}

/* Responsive Utilities */
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background: var(--bg-dark);
    flex-direction: column;
    justify-content: center;
    padding: 2rem;
    transition: var(--transition-smooth);
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .section {
    padding: 4rem 0;
  }
  
  .section-title {
    font-size: 2rem;
  }
}

/* Fade-in Animation Utility */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* ==========================================================================
   MOBILE NAVIGATION & RESPONSIVE POLISH
   ========================================================================== */
@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
    z-index: 1001;
  }
  
  /* Hide desktop header CTA button on mobile so it doesn't overlap */
  .header .btn-primary {
    display: none !important;
  }

  /* Full screen or drawer overlay menu */
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%; /* Hidden off-screen by default */
    width: 85%;
    max-width: 340px;
    height: 100vh;
    background: rgba(22, 11, 46, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--glass-border);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2.2rem;
    padding: 3rem 2rem;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: -20px 0 50px rgba(0, 0, 0, 0.7);
    z-index: 1000;
  }

  .nav-links.active {
    right: 0;
  }

  /* Well-spaced, beautifully proportioned mobile links */
  .nav-links .nav-link {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--off-white);
    letter-spacing: -0.01em;
    transition: color 0.2s ease;
  }

  .nav-links .nav-link:hover, 
  .nav-links .nav-link.active {
    color: var(--soft-purple);
  }
/* Make the mobile menu CTA button show up and span nicely */
.nav-links .mobile-menu-cta {
  display: block !important;
  width: 100%;
  margin-top: 1rem;
}

.nav-links .mobile-menu-cta a {
  width: 100%;
  text-align: center;
  justify-content: center;
  box-sizing: border-box;
}

  /* Perfect mobile button styling and padding */
  .hero-btns {
    flex-direction: column;
    width: 100%;
    gap: 1rem;
  }

  .hero-btns .btn {
    width: 100%;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    justify-content: center;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.75rem;
    text-align: center;
  }
}