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

:root {
  --clr-bg: #0a0612;
  --clr-bg-glass: rgba(30, 0, 60, 0.80);
  --clr-card: rgba(40, 10, 60, 0.92);
  --clr-glass-border: rgba(120, 80, 180, 0.13);
  --clr-primary: #8f4fff;
  --clr-primary-dark: #3d1a5e;
  --clr-accent: #5e4fff;
  --clr-text: #f5f5fa;
  --clr-subtle: #b8a9d1;
  --clr-positive: #00e0a0;
  --clr-warning: #ffd600;
  --clr-critical: #ff375f;
  --radius: 1.5rem;
  --shadow: 0 4px 18px 0 rgba(31, 38, 135, 0.10);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}
body {
  font-family: 'Inter', 'Space Grotesk', Arial, sans-serif;
  background: linear-gradient(135deg, #0a0612 0%, #1a1330 100%);
  color: var(--clr-text);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}
.background-glass {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse at 60% 20%, #8f4fff18 0%, transparent 70%),
              radial-gradient(ellipse at 20% 80%, #5e4fff10 0%, transparent 80%);
  pointer-events: none;
}
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 3vw 1.2rem 3vw;
  background: var(--clr-bg-glass);
  border-bottom: 1.5px solid var(--clr-glass-border);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px) saturate(120%);
  border-radius: 0 0 2rem 2rem;
}
.logo-img {
  height: 2.2rem;
  width: auto;
  vertical-align: middle;
  margin-right: 1rem;
}
.logo {
  margin-right: 0;
}
.brand-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--clr-primary);
}
.nav {
  display: flex;
  gap: 2.2rem;
}
.nav a {
  color: var(--clr-text);
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  padding: 0.4rem 1.1rem;
  border-radius: 1rem;
  transition: var(--transition);
  background: transparent;
}
.nav a:hover {
  background: var(--clr-primary);
  color: #fff;
}
.hero {
  margin: 5rem auto 3rem auto;
  max-width: 700px;
  text-align: center;
  padding: 3.5rem 2rem 2.5rem 2rem;
  background: var(--clr-bg-glass);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px) saturate(120%);
  border: 1.5px solid var(--clr-glass-border);
  position: relative;
  z-index: 1;
}
.hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  color: var(--clr-primary);
  letter-spacing: -1px;
}
.subtitle {
  font-size: 1.18rem;
  color: var(--clr-subtle);
  margin-bottom: 2.2rem;
}
.cta-btn {
  display: inline-block;
  background: var(--clr-primary);
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  padding: 1.1rem 2.5rem;
  border-radius: 2rem;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  box-shadow: 0 2px 8px #0002;
  margin-top: 2.2rem;
}
.cta-btn:hover {
  background: var(--clr-primary-dark);
  color: #fff;
  transform: translateY(-2px) scale(1.03);
}
.features {
  margin: 4rem auto 2rem auto;
  max-width: 1100px;
  padding: 2.5rem 2vw;
}
.features h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2.1rem;
  color: var(--clr-primary);
  margin-bottom: 2.2rem;
  text-align: center;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2.2rem;
}
.feature-card {
  background: var(--clr-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2.2rem 1.5rem 1.5rem 1.5rem;
  text-align: center;
  border: 1.5px solid var(--clr-glass-border);
  backdrop-filter: blur(8px) saturate(110%);
  transition: var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 4px 18px #0003;
}
.feature-icon {
  font-size: 2.1rem;
  margin-bottom: 1.1rem;
  color: var(--clr-primary);
}
.feature-card h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.18rem;
  color: var(--clr-primary);
  margin-bottom: 0.7rem;
}
.feature-card p {
  color: var(--clr-subtle);
  font-size: 1.01rem;
}
.how-it-works {
  margin: 4rem auto 2rem auto;
  max-width: 700px;
  background: var(--clr-bg-glass);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2.5rem 2rem;
  border: 1.5px solid var(--clr-glass-border);
  backdrop-filter: blur(8px) saturate(110%);
}
.how-it-works h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}
.how-list {
  list-style: decimal inside;
  color: var(--clr-text);
  font-size: 1.12rem;
  padding-left: 0;
  margin: 0;
}
.how-list li {
  margin-bottom: 1.1rem;
  background: var(--clr-card);
  border-radius: 1rem;
  padding: 1rem 1.5rem;
  box-shadow: 0 2px 8px #0002;
  border: 1px solid var(--clr-glass-border);
}
.alerts-demo {
  margin: 4rem auto 2rem auto;
  max-width: 700px;
  padding: 2.5rem 2rem;
}
.alerts-demo h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  color: var(--clr-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}
.alerts-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.alert-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  background: var(--clr-card);
  border-radius: 1.2rem;
  padding: 1.2rem 1.5rem;
  box-shadow: 0 2px 8px #0002;
  border: 1.5px solid var(--clr-glass-border);
  font-size: 1.08rem;
  font-family: 'Inter', sans-serif;
  backdrop-filter: blur(6px) saturate(110%);
}
.alert-type {
  font-weight: 700;
  font-size: 1.05rem;
  border-radius: 0.7rem;
  padding: 0.3rem 0.9rem;
  letter-spacing: 1px;
}
.alert-type.positive {
  background: #1a1330;
  color: var(--clr-positive);
  border: 1px solid var(--clr-positive);
}
.alert-type.warning {
  background: #1a1330;
  color: var(--clr-warning);
  border: 1px solid var(--clr-warning);
}
.alert-type.critical {
  background: #1a1330;
  color: var(--clr-critical);
  border: 1px solid var(--clr-critical);
}
.alert-msg {
  flex: 1;
  color: var(--clr-text);
}
.alert-time {
  color: var(--clr-subtle);
  font-size: 0.98rem;
  margin-left: 1rem;
}
.footer {
  margin-top: 5rem;
  padding: 2.2rem 0 1.2rem 0;
  text-align: center;
  color: var(--clr-subtle);
  font-size: 1.05rem;
  background: var(--clr-bg-glass);
  border-radius: 2rem 2rem 0 0;
  box-shadow: 0 -2px 8px #0002;
  border-top: 1.5px solid var(--clr-glass-border);
  backdrop-filter: blur(8px) saturate(110%);
}

/* Glassmorphism utility */
.glass {
  background: var(--clr-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1.5px solid var(--clr-glass-border);
  backdrop-filter: blur(8px) saturate(110%);
}

@media (max-width: 700px) {
  .header {
    flex-direction: column;
    gap: 1.2rem;
    padding: 1.2rem 2vw 1.2rem 2vw;
  }
  .brand-title {
    font-size: 1.4rem;
  }
  .nav {
    gap: 1.1rem;
  }
  .hero {
    padding: 2rem 1rem 1.5rem 1rem;
    margin: 2.5rem auto 2rem auto;
  }
  .features {
    padding: 1.2rem 1vw;
  }
  .features-grid {
    gap: 1.1rem;
  }
  .how-it-works {
    padding: 1.2rem 1rem;
  }
  .alerts-demo {
    padding: 1.2rem 1rem;
  }
}