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

/* ROOT VARIABLES */
:root {
  --void: #050709;
  --surface: rgba(255,255,255,0.04);
  --surface-hover: rgba(255,255,255,0.08);
  --glass: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --accent: #00e5ff;
  --accent-purple: #8b5cf6;
  --accent-rose: #f43f5e;
  --accent-gold: #fbbf24;
  --text-primary: #f0f4ff;
  --text-secondary: rgba(240,244,255,0.65);
  --text-muted: rgba(240,244,255,0.4);
  --transition: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--void);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition), transform var(--transition);
}

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

/* Aurora Background */
.aurora-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.aurora-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
  animation: drift 20s infinite alternate ease-in-out;
}

.aurora-blob.cyan {
  background: var(--accent);
  width: 40vw;
  height: 40vw;
  top: -10vw;
  left: -10vw;
}

.aurora-blob.purple {
  background: var(--accent-purple);
  width: 50vw;
  height: 50vw;
  bottom: -20vw;
  right: -10vw;
  animation-delay: -5s;
}

@keyframes drift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(10vw, 10vh) scale(1.1); }
}

/* Glassmorphism Classes */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  transition: all var(--transition);
}

.glass-card:hover {
  background: var(--surface-hover);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-5px);
  box-shadow: 0 12px 40px 0 rgba(0, 229, 255, 0.1);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background: transparent;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(5, 7, 9, 0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--glass-border);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid var(--accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--accent);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

.brand-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 1px;
}

.brand-sub {
  color: var(--text-secondary);
  font-weight: 400;
  margin-left: 5px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
  text-shadow: 0 0 10px rgba(255,255,255,0.3);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  background: var(--surface);
  padding: 0.5rem 1rem;
  border-radius: 99px;
  border: 1px solid var(--glass-border);
}

.dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent);
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  font-family: inherit;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn-primary {
  background: var(--accent);
  color: var(--void);
  box-shadow: 0 0 15px rgba(0, 229, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(0, 229, 255, 0.6);
  background: #33ebff;
}

.btn-glass {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-glass:hover {
  background: var(--surface-hover);
  border-color: rgba(255,255,255,0.2);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Sections */
section {
  padding: 6rem 2rem;
  position: relative;
  z-index: 1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #fff, var(--text-secondary));
  -webkit-background-clip: text;
  color: transparent;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  max-width: 600px;
  margin: 0 auto;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 80px;
  position: relative;
}

#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.6;
}

.hero-content {
  max-width: 800px;
  z-index: 2;
}

.hero-eyebrow {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
  display: inline-block;
  padding: 0.5rem 1rem;
  background: rgba(0, 229, 255, 0.1);
  border-radius: 99px;
  border: 1px solid rgba(0, 229, 255, 0.2);
}

.hero h1 {
  font-size: clamp(3rem, 6vw, 5rem);
  line-height: 1.1;
  margin-bottom: 1.5rem;
  font-weight: 800;
  letter-spacing: -1px;
}

.hero-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  min-height: 2.2rem;
}

.typewriter-text {
  color: var(--accent);
  font-weight: 600;
}

.hero-ctas {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 2rem;
  justify-content: center;
}

.stat-pill {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--glass-border);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  backdrop-filter: blur(10px);
}

.stat-pill .label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 0.25rem;
}

.stat-pill .value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Stats Section */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: -3rem;
}

.stat-card {
  text-align: center;
  padding: 2rem;
}

.stat-card .number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
  display: inline-block;
}

.stat-card .label {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Modes Grid */
.modes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.mode-card {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.mode-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
  background: rgba(255,255,255,0.05);
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  border: 1px solid var(--glass-border);
}

.mode-card h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.mode-card p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
}

/* Why Nexa */
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.pillar-card {
  padding: 2.5rem 2rem;
  text-align: center;
}

.pillar-card h3 {
  font-size: 1.25rem;
  margin: 1.5rem 0 1rem;
  color: var(--accent);
}

/* CTA Section */
.cta-section {
  text-align: center;
}

.join-card {
  max-width: 800px;
  margin: 0 auto;
  padding: 4rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(135deg, rgba(0,229,255,0.1), rgba(139,92,246,0.1));
}

.join-card h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.ip-copy-box {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--accent);
  padding: 1rem 2rem;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 2rem 0;
  cursor: pointer;
  transition: all var(--transition);
}

.ip-copy-box:hover {
  background: rgba(0,229,255,0.1);
  transform: scale(1.05);
}

.ip-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
}

/* News */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.news-card {
  padding: 1.5rem;
}

.news-meta {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.news-card h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.news-card p {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}

/* Footer */
.footer {
  background: rgba(5,7,9,0.8);
  border-top: 1px solid var(--glass-border);
  padding: 4rem 2rem 2rem;
  backdrop-filter: blur(20px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto 3rem;
}

.footer-brand p {
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 1.5rem 0;
}

.footer-socials {
  display: flex;
  gap: 1rem;
}

.footer-socials a {
  color: var(--text-primary);
  text-decoration: none;
  background: var(--surface);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: all var(--transition);
}

.footer-socials a:hover {
  background: var(--accent);
  color: var(--void);
}

.footer-col h4 {
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-size: 1.1rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: var(--accent);
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid var(--glass-border);
  color: var(--text-muted);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--accent);
  color: var(--void);
  padding: 1rem 2rem;
  border-radius: 8px;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0,229,255,0.3);
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition);
  z-index: 9999;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Mobile responsive */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn {
    display: none;
  }
  .hamburger {
    display: block;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
  .hero-stats {
    flex-direction: column;
    gap: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}