/* =========================================================
   Lazarus Labs — Premium Black & White Space Theme
   Shared design system
   ========================================================= */

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

:root {
  --black: #000000;
  --panel: #0a0a0c;
  --panel-2: #101013;
  --line: rgba(255, 255, 255, 0.10);
  --line-strong: rgba(255, 255, 255, 0.22);
  --white: #ffffff;
  --text: #f4f4f6;
  --muted: #9a9aa6;
  --muted-2: #6f6f7a;
  --glow: rgba(255, 255, 255, 0.55);
  --radius: 16px;
  --maxw: 1180px;
  --display: 'Space Grotesk', system-ui, sans-serif;
  --body: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--black);
  color: var(--text);
  font-family: var(--body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Starfield canvas sits behind everything */
#starfield {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* Subtle radial vignette / deep-space glow over the stars */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(1100px 700px at 50% -10%, rgba(255,255,255,0.08), transparent 60%),
    radial-gradient(900px 600px at 85% 110%, rgba(255,255,255,0.05), transparent 60%);
}

main, nav, footer { position: relative; z-index: 2; }

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

h1, h2, h3, h4 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.08;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1em; color: var(--muted); }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: var(--display);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--line-strong);
}

/* ----------------- Navigation ----------------- */
nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-brand img {
  height: 34px;
  width: auto;
  /* logo art is black; invert to white for the dark theme */
  filter: invert(1);
  display: block;
}
.nav-brand .brand {
  font-family: var(--display);
  font-size: 19px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--white);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}
.nav-links a {
  font-size: 15px;
  color: var(--muted);
  transition: color 0.2s ease;
  position: relative;
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--white);
}

.nav-cta {
  font-family: var(--display);
  font-size: 14px;
  font-weight: 500;
  color: var(--black) !important;
  background: var(--white);
  padding: 10px 18px;
  border-radius: 100px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 24px rgba(255,255,255,0.35);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed;
    inset: 64px 0 auto 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 12px 24px 24px;
    background: rgba(5,5,7,0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    transition: transform 0.35s cubic-bezier(.16,1,.3,1);
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { width: 100%; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 17px; }
  .nav-links .nav-cta { margin-top: 16px; border-bottom: 0; text-align: center; }
}

/* ----------------- Buttons ----------------- */
.btn {
  font-family: var(--display);
  font-size: 15px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 100px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s ease, box-shadow 0.25s ease, background 0.2s ease, color 0.2s ease;
}
.btn-primary {
  background: var(--white);
  color: var(--black);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 34px rgba(255,255,255,0.4);
}
.btn-ghost {
  background: transparent;
  color: var(--white);
  border-color: var(--line-strong);
}
.btn-ghost:hover {
  border-color: var(--white);
  transform: translateY(-2px);
}
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ----------------- Sections ----------------- */
section { padding: 110px 0; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: clamp(30px, 4.5vw, 46px); }
.section-head p { font-size: 18px; }

/* ----------------- Hero ----------------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 90px;
  overflow: hidden;
}
.hero-orbit {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  pointer-events: none;
}
.hero h1 {
  position: relative;
  z-index: 2;
  font-size: clamp(40px, 8vw, 92px);
  font-weight: 600;
  max-width: 14ch;
  background: linear-gradient(180deg, #ffffff 0%, #b9b9c6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  position: relative;
  z-index: 2;
  font-size: clamp(17px, 2.2vw, 21px);
  max-width: 620px;
  color: var(--muted);
}
.hero-actions {
  position: relative;
  z-index: 2;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 14px;
}
.hero-badge {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  padding: 8px 16px;
  border-radius: 100px;
  margin-bottom: 30px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 10px #34d399;
}

/* ----------------- Cards / grids ----------------- */
.grid { display: grid; gap: 22px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr; } .grid-2 { grid-template-columns: 1fr; } }

.card {
  position: relative;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(400px 200px at var(--mx, 50%) var(--my, 0%), rgba(255,255,255,0.08), transparent 70%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.card:hover::after { opacity: 1; }
.card .card-icon {
  width: 46px; height: 46px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  margin-bottom: 20px;
}
.card h3 { font-size: 21px; }
.card p { font-size: 15px; margin-bottom: 0; }

/* ----------------- Stats ----------------- */
.stats { display: flex; flex-wrap: wrap; gap: 48px; justify-content: center; }
.stat { text-align: center; }
.stat .num {
  font-family: var(--display);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 600;
  color: var(--white);
  letter-spacing: -0.03em;
}
.stat .label { font-size: 13px; color: var(--muted); letter-spacing: 0.16em; text-transform: uppercase; }

/* ----------------- Footer ----------------- */
footer {
  border-top: 1px solid var(--line);
  padding: 64px 0 40px;
  margin-top: 40px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand { max-width: 320px; }
.footer-brand .nav-brand { margin-bottom: 16px; }
.footer-brand p { font-size: 14px; }
.footer-col h4 { font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 18px; }
.footer-col a { display: block; color: var(--muted); font-size: 15px; padding: 6px 0; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted-2);
}

/* ----------------- Scroll reveal ----------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(.16,1,.3,1), transform 0.7s cubic-bezier(.16,1,.3,1);
}
.reveal.in { opacity: 1; transform: none; }
[data-delay="1"] { transition-delay: 0.08s; }
[data-delay="2"] { transition-delay: 0.16s; }
[data-delay="3"] { transition-delay: 0.24s; }
[data-delay="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}