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

:root{
  --bg: #070b13;
  --bg-alt: #0c1320;
  --surface: rgba(255,255,255,0.05);
  --surface-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.09);
  --text: #eaf0f8;
  --muted: #aab6c8;
  --muted-2: #8492a8;
  --cyan: #4be3c8;
  --amber: #f5b84a;
  --blue: #6aa9ff;
}

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

html{
  scroll-behavior: smooth;
}

body, html{
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* ===== Layered backdrop ===== */
.bg-vignette{
  position: fixed;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(75,227,200,0.10), transparent 60%),
    radial-gradient(ellipse 70% 50% at 100% 100%, rgba(106,169,255,0.08), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-alt) 100%);
}

#gridCanvas{
  position: fixed;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
}

/* ===== Nav ===== */
nav{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 5vw;
  background: rgba(7, 11, 19, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.wordmark{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: 0.01em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
}

.wordmark .node{
  width: 8px;
  height: 8px;
  border-radius: 1px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(75,227,200,0.85);
  flex-shrink: 0;
}

.wordmark span.accent{
  color: var(--cyan);
}

.nav-links{
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a{
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.03em;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible{
  color: var(--text);
}

#buy_now_link{
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: #05130f;
  background: var(--cyan);
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  border: 1px solid var(--cyan);
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

#buy_now_link:hover,
#buy_now_link:focus-visible{
  background: #6cf0d8;
  box-shadow: 0 0 24px rgba(75,227,200,0.45);
  transform: translateY(-1px);
}

#buy_now_link:focus-visible{
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

/* ===== Shared content layer ===== */
main, footer{
  position: relative;
  z-index: 10;
}

section{
  position: relative;
  z-index: 10;
  padding: 0 5vw;
}

/* ===== Hero ===== */
.hero{
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 12vh;
  padding-bottom: 8vh;
  position: relative;
  z-index: 10;
}

.eyebrow{
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 22px;
}

.hero h1{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 5rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 16ch;
}

.hero h1 .accent{
  color: var(--cyan);
}

.hero-sub{
  margin-top: 26px;
  max-width: 680px;
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.65;
  color: var(--muted);
}

.hero-chips{
  margin-top: 40px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.chip{
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted-2);
  border: 1px solid var(--border);
  background: var(--surface);
  padding: 9px 16px;
  border-radius: 999px;
}

.chip b{
  color: var(--text);
  font-weight: 500;
}

/* ===== Cards ===== */
.cards-section{
  padding-top: 8vh;
  padding-bottom: 10vh;
}

.section-head{
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-head h2{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-top: 14px;
  color: var(--text);
}

.cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 38px 34px;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.card:hover{
  transform: translateY(-6px);
  background: var(--surface-hover);
  border-color: rgba(75,227,200,0.35);
}

.card .node-tag{
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--amber);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}

.card .node-tag::before{
  content: "";
  width: 6px;
  height: 6px;
  background: var(--amber);
  box-shadow: 0 0 8px rgba(245,184,74,0.8);
  border-radius: 1px;
}

.card h3{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--text);
}

.card p{
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ===== CTA ===== */
.cta{
  text-align: center;
  padding-top: 10vh;
  padding-bottom: 14vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cta .eyebrow{ margin-bottom: 18px; }

.cta h2{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 3rem);
  max-width: 20ch;
  color: var(--text);
}

.cta-stack{
  margin-top: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.signal-status{
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--cyan);
  text-transform: uppercase;
}

#buy_now_bottom.signal-cta{
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: #05130f;
  background: linear-gradient(135deg, var(--cyan), #7ff0da);
  text-decoration: none;
  padding: 18px 44px;
  border-radius: 8px;
  border: 1px solid var(--cyan);
  box-shadow: 0 0 0 rgba(75,227,200,0);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-block;
}

#buy_now_bottom.signal-cta:hover,
#buy_now_bottom.signal-cta:focus-visible{
  transform: translateY(-2px);
  box-shadow: 0 8px 34px rgba(75,227,200,0.35);
}

#buy_now_bottom.signal-cta:focus-visible{
  outline: 2px solid var(--text);
  outline-offset: 3px;
}

.signal-sub{
  font-size: 0.88rem;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===== Footer ===== */
footer{
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 30px 5vw 44px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--muted-2);
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

footer a{
  color: var(--muted);
}

footer a:hover,
footer a:focus-visible{
  color: var(--cyan);
}

/* ===== Responsive ===== */
@media (max-width: 720px){
  .nav-links{ display: none; }
}

@media (max-width: 480px){
  nav{ padding: 14px 5vw; }
  .wordmark{ font-size: 1.05rem; }
  #buy_now_link{ padding: 8px 14px; font-size: 0.75rem; }
  .hero{ padding-top: 14vh; }
  .card{ padding: 30px 24px; }
  .hero-chips{ gap: 8px; }
  .chip{ padding: 7px 12px; font-size: 0.7rem; }
  #buy_now_bottom.signal-cta{ padding: 16px 32px; width: 100%; max-width: 320px; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
}