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

:root{
  --bg: #0a0b10;
  --bg-alt: #0f1119;
  --panel: #12151f;
  --panel-border: rgba(255,255,255,0.08);
  --text: #f2f4f8;
  --muted: #9aa3b8;
  --accent: #7ef0ff;
  --accent-2: #9b8cff;
}

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

html, body{
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  width: 100%;
}

body{
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

h1, h2, h3, .wordmark{
  font-family: 'Space Grotesk', sans-serif;
}

a{ color: inherit; text-decoration: none; }

#bg-canvas{
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  display: block;
  background:
    radial-gradient(ellipse at 20% 15%, rgba(126,240,255,0.06), transparent 55%),
    radial-gradient(ellipse at 85% 80%, rgba(155,140,255,0.07), transparent 55%),
    var(--bg);
}

.content{
  position: relative;
  z-index: 10;
}

/* NAV */
nav{
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 6vw;
  background: rgba(10,11,16,0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--panel-border);
}

.wordmark{
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: linear-gradient(120deg, #ffffff 0%, var(--accent) 55%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.wordmark span{
  color: var(--accent);
  -webkit-text-fill-color: var(--accent);
}

.nav-link{
  padding: 10px 20px;
  border: 1px solid rgba(126,240,255,0.4);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--text);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link:focus-visible{
  background: rgba(126,240,255,0.12);
  border-color: var(--accent);
  transform: translateY(-1px);
  outline: none;
}

/* HERO */
.hero{
  padding: 14vh 6vw 8vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  min-height: 78vh;
  justify-content: center;
}

.hero .eyebrow{
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 22px;
  font-weight: 600;
}

.hero h1{
  font-size: clamp(2rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.08;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}

.hero h1 .line-accent{
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p{
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  margin: 0;
}

/* CARDS */
.cards-section{
  padding: 6vh 6vw 10vh;
}

.cards-heading{
  text-align: center;
  max-width: 620px;
  margin: 0 auto 48px;
}

.cards-heading h2{
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin: 0 0 12px;
  font-weight: 600;
}

.cards-heading p{
  color: var(--muted);
  margin: 0;
  font-size: 1rem;
}

.cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.card{
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 38px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover{
  transform: translateY(-8px);
  border-color: rgba(126,240,255,0.35);
  box-shadow: 0 20px 40px -20px rgba(126,240,255,0.15);
}

.card .mark{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  margin-bottom: 20px;
  background: linear-gradient(135deg, rgba(126,240,255,0.15), rgba(155,140,255,0.15));
  border: 1px solid rgba(126,240,255,0.25);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent);
  font-family: 'Space Grotesk', sans-serif;
}

.card h3{
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 12px;
  letter-spacing: 0.01em;
  color: #ffffff;
}

.card p{
  color: var(--muted);
  font-size: 0.96rem;
  margin: 0;
}

/* CTA */
.cta{
  padding: 10vh 6vw 14vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 18px;
}

.signal-status{
  font-size: 0.78rem;
  letter-spacing: 0.24em;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 4px;
}

.signal-cta{
  display: inline-block;
  padding: 18px 44px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #0a0b10;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  transition: transform 0.2s ease, box-shadow 0.25s ease;
  box-shadow: 0 12px 30px -10px rgba(126,240,255,0.4);
}

.signal-cta:hover,
.signal-cta:focus-visible{
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -12px rgba(126,240,255,0.55);
  outline: none;
}

.signal-sub{
  color: var(--muted);
  font-size: 0.88rem;
  margin: 4px 0 0;
}

footer {
  color: #ffffff !important;
  background: rgba(10, 11, 16, 0.9);
  border-top: 1px solid var(--panel-border);
  padding: 40px 6vw !important;
  margin-top: auto;
  position: relative;
  z-index: 100;
}

@media (max-width: 480px){
  nav{ padding: 16px 5vw; }
  .wordmark{ font-size: 1.1rem; }
  .nav-link{ padding: 8px 14px; font-size: 0.78rem; }
  .hero{ padding: 12vh 6vw 6vh; min-height: 60vh; }
  .hero .eyebrow{ letter-spacing: 0.18em; }
  .cards-section{ padding: 4vh 5vw 7vh; }
  .card{ padding: 28px; }
  .cta{ padding: 8vh 5vw 10vh; }
  .signal-cta{ padding: 16px 32px; font-size: 0.95rem; }
}

@media (prefers-reduced-motion: reduce){
  *{
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}