/* ==========================================================================
   GLEEBIT Landing Page Stylesheet
   Dark, sleek crypto/web3 aesthetic matching design specification
   ========================================================================== */

:root {
  /* Color Palette */
  --bg-main: #06070c;
  --bg-card: rgba(18, 20, 32, 0.4);
  --bg-modal: #0c0d18;
  
  --text-white: #ffffff;
  --text-subtitle: #e2e8f0;
  --text-muted: #8c9baa;
  --text-dim: #5a687c;
  
  --primary-purple: #8b5cf6;
  --primary-purple-light: #a78bfa;
  --primary-purple-bright: #c084fc;
  --primary-purple-dark: #6d28d9;
  --primary-purple-glow: rgba(139, 92, 246, 0.35);
  
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-button: rgba(139, 92, 246, 0.45);
  --border-button-hover: #9333ea;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  
  /* Layout & Transitions */
  --max-width: 1060px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  min-height: 100vh;
  background-color: var(--bg-main);
  color: var(--text-muted);
  font-family: var(--font-family);
  font-size: 15.5px;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Background Ambient Glows */
.bg-glow {
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(140px);
  z-index: 0;
}

.bg-glow-hero {
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, rgba(99, 102, 241, 0.05) 60%, transparent 80%);
}

.bg-glow-bottom {
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 350px;
  background: radial-gradient(circle, rgba(109, 40, 217, 0.1) 0%, transparent 70%);
}

/* ==========================================================================
   Header Navigation
   ========================================================================== */
.site-header {
  position: relative;
  z-index: 20;
  width: 100%;
  padding: 2.5rem 0 1.5rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-white);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-decoration: none;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.logo-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(139, 92, 246, 0.4));
  transition: transform var(--transition-normal), filter var(--transition-normal);
}

.logo:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

.logo:hover .logo-icon {
  transform: rotate(6deg) scale(1.05);
  filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.75));
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-link {
  color: #94a3b8;
  font-size: 0.925rem;
  font-weight: 400;
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.nav-link.active {
  color: var(--text-white);
  font-weight: 400;
}

/* Mobile Menu Toggle Button */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 30;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--text-white);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  z-index: 10;
  padding: 5.5rem 0 4.5rem 0;
  text-align: center;
}

.hero-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 1.15rem 0.45rem 0.65rem;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: 9999px;
  margin-bottom: 2rem;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.15);
  transition: all var(--transition-normal);
  text-decoration: none;
}

.hero-badge:hover {
  background: rgba(139, 92, 246, 0.16);
  border-color: rgba(168, 85, 247, 0.5);
  box-shadow: 0 0 25px rgba(139, 92, 246, 0.35);
  transform: translateY(-2px);
}

.hero-badge-img {
  width: 22px;
  height: 22px;
  object-fit: contain;
  filter: drop-shadow(0 0 6px rgba(139, 92, 246, 0.5));
}

.hero-badge-text {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary-purple-light);
  letter-spacing: 0.02em;
}

.hero-title {
  font-size: clamp(3.5rem, 8.5vw, 5.2rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1.05;
  margin-bottom: 1.5rem;
  user-select: none;
}

.hero-title .text-white {
  color: #ffffff;
}

.hero-title .text-purple {
  color: #8b5cf6;
  background: linear-gradient(135deg, #a78bfa 0%, #7c3aed 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  color: var(--text-subtitle);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 2rem;
}

.accent-divider {
  width: 80px;
  height: 2.5px;
  background: linear-gradient(90deg, #6366f1, #8b5cf6, #a855f7);
  border-radius: 4px;
  margin-bottom: 2.25rem;
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.4);
}

.hero-description {
  max-width: 580px;
  color: var(--text-muted);
  font-size: 1.025rem;
  line-height: 1.65;
  margin-bottom: 2.75rem;
}

.hero-cta {
  display: flex;
  justify-content: center;
}

.btn-whitepaper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.85rem;
  background: rgba(139, 92, 246, 0.03);
  border: 1px solid var(--border-button);
  border-radius: 8px;
  color: #a78bfa;
  font-size: 0.975rem;
  font-weight: 400;
  text-decoration: none;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all var(--transition-normal);
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.08);
}

.btn-whitepaper:hover {
  background: rgba(139, 92, 246, 0.12);
  border-color: #a855f7;
  color: #c4b5fd;
  box-shadow: 0 0 25px rgba(139, 92, 246, 0.35);
  transform: translateY(-2px);
}

.btn-whitepaper:active {
  transform: translateY(0);
}

/* Full Width Subtle Dividers */
.section-divider {
  width: 100%;
  height: 1px;
  background: rgba(255, 255, 255, 0.05);
}

/* ==========================================================================
   Features Section (3 Columns)
   ========================================================================== */
.features-section {
  position: relative;
  z-index: 10;
  padding: 5.5rem 0;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.5rem;
  text-align: center;
}

.feature-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 0.5rem;
  transition: transform var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-icon-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 1.6rem;
  color: #a855f7;
  transition: all var(--transition-normal);
}

.feature-icon {
  width: 44px;
  height: 44px;
  filter: drop-shadow(0 0 8px rgba(168, 85, 247, 0.3));
  transition: transform var(--transition-normal), filter var(--transition-normal);
}

.feature-card:hover .feature-icon {
  transform: scale(1.08);
  filter: drop-shadow(0 0 14px rgba(168, 85, 247, 0.6));
}

.feature-title {
  color: var(--text-white);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.9rem;
}

.feature-text {
  color: var(--text-muted);
  font-size: 0.915rem;
  line-height: 1.65;
  font-weight: 400;
}

/* ==========================================================================
   Ecosystem & Links Section
   ========================================================================== */
.ecosystem-section {
  position: relative;
  z-index: 10;
  padding: 5rem 0 3.5rem 0;
  text-align: center;
}

.ecosystem-container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.ecosystem-title {
  color: var(--text-white);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 0.4rem;
}

.ecosystem-subtitle {
  color: var(--text-muted);
  font-size: 0.925rem;
  margin-bottom: 2.75rem;
}

.ecosystem-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4.5rem;
}

.eco-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  gap: 0.65rem;
  color: #a78bfa;
  font-size: 0.925rem;
  font-weight: 400;
  transition: all var(--transition-normal);
}

.eco-icon {
  width: 26px;
  height: 26px;
  color: #a855f7;
  transition: transform var(--transition-normal), filter var(--transition-normal);
}

.eco-link span {
  transition: color var(--transition-fast);
}

.eco-link:hover {
  transform: translateY(-3px);
  color: #ddd6fe;
}

.eco-link:hover .eco-icon {
  transform: scale(1.1);
  filter: drop-shadow(0 0 10px rgba(168, 85, 247, 0.7));
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  position: relative;
  z-index: 10;
  padding: 2.5rem 0 3.5rem 0;
  text-align: center;
}

.copyright {
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ==========================================================================
   Interactive Whitepaper Modal
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 5, 10, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-backdrop.open {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  position: relative;
  background: var(--bg-modal);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(124, 58, 237, 0.2);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
}

.modal-backdrop.open .modal-card {
  transform: scale(1);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: #64748b;
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-white);
}

.modal-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1.25rem;
  color: #a855f7;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124, 58, 237, 0.12);
  border-radius: 12px;
}

.modal-icon svg {
  width: 28px;
  height: 28px;
}

.modal-title {
  color: var(--text-white);
  font-size: 1.35rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.modal-desc {
  color: var(--text-muted);
  font-size: 0.935rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.btn-modal-close {
  padding: 0.75rem 2rem;
  background: linear-gradient(135deg, #7c3aed, #9333ea);
  border: none;
  border-radius: 8px;
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.4);
}

.btn-modal-close:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 860px) {
  .features-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
    max-width: 480px;
    margin: 0 auto;
  }
  
  .ecosystem-links {
    gap: 2.5rem;
  }
}

@media (max-width: 680px) {
  .site-header {
    padding: 1.5rem 0;
  }

  .mobile-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 260px;
    height: 100vh;
    background: rgba(9, 10, 18, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-left: 1px solid var(--border-subtle);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    gap: 1.75rem;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 25;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .mobile-toggle.open span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .mobile-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .mobile-toggle.open span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-section {
    padding: 3.5rem 0 3rem 0;
  }

  .features-section {
    padding: 3.5rem 0;
  }

  .ecosystem-section {
    padding: 3.5rem 0 2.5rem 0;
  }

  .ecosystem-links {
    gap: 2.25rem;
  }
}