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

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

:root {
  --bg-deep: #04041a;
  --bg-mid: #0b0a2e;
  --indigo: #4f46e5;
  --blue: #3b82f6;
  --violet: #8b5cf6;
  --lilac: #c4b5fd;
  --text: #f1f2ff;
  --muted: #d0d3f0;
  --card-bg: rgba(14, 12, 48, 0.78);
  --card-border: rgba(139, 122, 255, 0.28);
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background-color: var(--bg-deep);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Layers: background 0, canvas 1, content 2, nav 100 ---- */

#bg-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 65% 38%, rgba(109, 62, 230, 0.32) 0%, rgba(109, 62, 230, 0) 70%),
    radial-gradient(ellipse 60% 60% at 10% 90%, rgba(37, 78, 219, 0.28) 0%, rgba(37, 78, 219, 0) 70%),
    linear-gradient(180deg, #04041a 0%, #090830 55%, #0d0a3a 100%);
}

#flow-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  display: block;
}

.hero,
.cards-section,
.cta,
.signal-line {
  position: relative;
  z-index: 2;
}

/* ---- Nav ---- */

.site-nav {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 26px 24px;
  background: rgba(6, 5, 30, 0.55);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(139, 122, 255, 0.12);
  transition: padding 250ms ease, background-color 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--text);
  transition: font-size 250ms ease;
}

.logo:hover {
  color: var(--text);
}

.logo-mark {
  position: relative;
  width: 1em;
  height: 1em;
  border-radius: 50%;
  border: 2px solid var(--violet);
  box-shadow: 0 0 14px rgba(139, 92, 246, 0.6), inset 0 0 8px rgba(59, 130, 246, 0.5);
  flex: none;
  transition: width 250ms ease, height 250ms ease;
}

.logo-mark::after {
  content: "";
  position: absolute;
  top: 28%;
  right: 28%;
  bottom: 28%;
  left: 28%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--violet));
}

.logo-lens {
  background: linear-gradient(90deg, #7fb0ff, #b79bff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #b79bff;
}

.site-nav .nav-link {
  display: inline-block;
  padding: 12px 26px;
  border-radius: 999px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  white-space: nowrap;
  color: #fff;
  background: linear-gradient(135deg, var(--indigo), var(--violet));
  box-shadow: 0 6px 22px rgba(99, 78, 235, 0.4);
  transition: padding 250ms ease, font-size 250ms ease, transform 200ms ease, box-shadow 200ms ease, filter 200ms ease;
}

.site-nav .nav-link:hover,
.site-nav .nav-link:focus {
  color: #fff;
  transform: translateY(-2px);
  filter: brightness(1.12);
  box-shadow: 0 10px 30px rgba(120, 90, 255, 0.6);
}

.site-nav .nav-link:focus-visible,
.signal-cta:focus-visible,
.logo:focus-visible {
  outline: 3px solid var(--lilac);
  outline-offset: 4px;
}

.site-nav.nav-scrolled {
  padding: 10px 24px;
  background: rgba(5, 4, 24, 0.9);
  border-bottom-color: rgba(139, 122, 255, 0.22);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

.site-nav.nav-scrolled .logo {
  font-size: 1.2rem;
}

.site-nav.nav-scrolled .nav-link {
  padding: 8px 18px;
  font-size: 0.85rem;
}

/* ---- Hero ---- */

.hero {
  padding: 12vh 24px 8vh;
  text-align: center;
}

.hero h1 {
  margin: 0 auto;
  max-width: 1100px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 5rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--text);
  text-shadow: 0 2px 30px rgba(4, 4, 26, 0.85);
}

.hero h1 .line {
  display: block;
}

.hero h1 .line-accent {
  background: linear-gradient(90deg, #8ab8ff 0%, #b79bff 55%, #d8b4fe 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: #b79bff;
  text-shadow: none;
}

/* ---- Cards ---- */

.cards {
  max-width: 1200px;
  margin: 0 auto;
  padding: 6vh 24px 10vh;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.info-card {
  position: relative;
  padding: 38px;
  border-radius: 20px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 14px 40px rgba(2, 2, 20, 0.5);
  overflow: hidden;
  transition: transform 300ms ease, border-color 300ms ease, box-shadow 300ms ease;
}

.info-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 38px;
  width: 56px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--blue), var(--violet));
}

.info-card:hover {
  transform: translateY(-8px);
  border-color: rgba(167, 139, 250, 0.6);
  box-shadow: 0 22px 54px rgba(20, 10, 90, 0.65);
}

.info-card h2 {
  margin: 8px 0 14px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 1.4rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: #ffffff;
}

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

/* ---- CTA / Signal line ---- */

.signal-line {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 4vh 24px 10vh;
}

.signal-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 600px;
  margin: 0 auto;
}

.signal-status {
  margin: 0 0 22px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.24em;
  color: #9fc0ff;
}

.signal-cta {
  display: inline-block;
  padding: 20px 46px;
  border-radius: 999px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--blue) 0%, var(--indigo) 45%, var(--violet) 100%);
  box-shadow: 0 10px 40px rgba(99, 78, 235, 0.55), inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  transition: transform 220ms ease, box-shadow 220ms ease, filter 220ms ease;
}

.signal-cta:hover {
  color: #fff;
  transform: translateY(-3px) scale(1.02);
  filter: brightness(1.12);
  box-shadow: 0 16px 56px rgba(130, 96, 255, 0.75), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.signal-sub {
  margin: 22px 0 0;
  font-size: 0.9rem;
  color: #b4b9e0;
}

/* ---- Footer ---- */
/* Footer markup is injected via SSI and is not edited per-domain, so its
   visibility, contrast and spacing live here. It sits above the fixed layers
   with a solid background so the canvas never shows through the text. */

footer {
  position: relative;
  z-index: 2;
  padding: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: #e4e6fb;
  background-color: #05041a;
  border-top: 1px solid rgba(139, 122, 255, 0.22);
}

footer div {
  margin: 4px 0;
}

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

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .site-nav {
    padding: 18px 20px;
  }
  .site-nav.nav-scrolled {
    padding: 10px 20px;
  }
  .site-nav.nav-scrolled .logo {
    font-size: 1.2rem;
  }
  .site-nav.nav-scrolled .nav-link {
    padding: 8px 18px;
    font-size: 0.85rem;
  }
  .info-card {
    padding: 32px;
  }
  .info-card::before {
    left: 32px;
  }
}

@media (max-width: 480px) {
  .site-nav {
    padding: 14px 16px;
  }
  .site-nav.nav-scrolled {
    padding: 8px 16px;
  }
  .logo {
    font-size: 1.2rem;
  }
  .site-nav.nav-scrolled .logo {
    font-size: 1.05rem;
  }
  .site-nav .nav-link {
    padding: 10px 16px;
    font-size: 0.85rem;
  }
  .site-nav.nav-scrolled .nav-link {
    padding: 7px 14px;
    font-size: 0.8rem;
  }
  .hero {
    padding: 10vh 18px 5vh;
  }
  .cards {
    padding: 4vh 16px 8vh;
  }
  .info-card {
    padding: 28px 24px;
  }
  .info-card::before {
    left: 24px;
  }
  .signal-cta {
    padding: 16px 28px;
    font-size: 1.05rem;
  }
  .signal-status {
    letter-spacing: 0.16em;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .site-nav,
  .logo,
  .logo-mark,
  .site-nav .nav-link,
  .info-card,
  .signal-cta {
    transition: none;
  }
  .info-card:hover,
  .site-nav .nav-link:hover,
  .signal-cta:hover {
    transform: none;
  }
}