/* --- Base & Theme --- */
:root {
  --text: #eaf0ff;
  --muted: #b6c0d9;
  --primary: #8aa9ff;
  --primary-2: #6c8cff;
  --pink: #ff7eb6;
  --green: #6ce5b1;
  --card-bg: rgba(18, 22, 45, 0.6);
  --card-border: rgba(255, 255, 255, 0.12);
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background:
    radial-gradient(900px 900px at 10% 10%, #1b2446 0%, #0b1020 50%),
    linear-gradient(180deg, #0b1020 0%, #101735 60%, #0b1020 100%);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Soft aurora background */
.bg {
  position: fixed;
  inset: -20vmax;
  background:
    radial-gradient(40vmax 30vmax at 20% 30%, rgba(108, 140, 255, 0.18), transparent 60%),
    radial-gradient(35vmax 30vmax at 80% 20%, rgba(255, 126, 182, 0.18), transparent 65%),
    radial-gradient(35vmax 30vmax at 60% 80%, rgba(108, 229, 177, 0.15), transparent 65%);
  filter: blur(45px);
  z-index: 0;
  pointer-events: none;
}

.page {
  position: relative;
  z-index: 1;
  max-width: 1200px; /* enlarged */
  margin: 0 auto;
  padding: 28px; /* slightly larger */
}

/* --- Topbar --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px; /* larger */
  background: rgba(18, 22, 45, 0.45);
  border: 1px solid var(--card-border);
  border-radius: 16px;
  backdrop-filter: saturate(140%) blur(12px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.mark {
  width: 16px; /* larger */
  height: 16px;
  border-radius: 50%;
  background: conic-gradient(from 180deg, var(--primary), var(--pink), var(--green), var(--primary));
  box-shadow: 0 0 16px rgba(138, 169, 255, 0.6);
}
.brand-name {
  font-weight: 800;
  font-size: clamp(20px, 2.6vw, 28px); /* larger */
  background: linear-gradient(90deg, var(--primary), var(--pink), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-actions { display: flex; gap: 12px; }
.nav-link {
  color: var(--text);
  text-decoration: none;
  padding: 9px 14px; /* larger */
  border-radius: 10px;
  border: 1px solid transparent;
}
.nav-link:hover {
  border-color: var(--card-border);
  color: #ffffff;
}

/* --- Hero Card --- */
.hero {
  margin: 56px auto 32px; /* larger */
  padding: 64px 36px; /* larger */
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 28px; /* slightly larger */
  backdrop-filter: saturate(140%) blur(14px);
  text-align: center;
}
.brand-title {
  margin: 0 0 12px;
  font-size: clamp(56px, 8vw, 96px); /* larger */
  line-height: 1.02;
}
.gradient-text {
  background: linear-gradient(90deg, var(--primary), var(--pink), var(--green));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 8px 48px rgba(108, 140, 255, 0.35); /* larger glow */
}
.subtitle {
  margin: 0 0 18px;
  color: var(--muted);
  font-weight: 700;
  font-size: 18px; /* larger */
}
.intro {
  max-width: 920px; /* larger */
  margin: 0 auto 28px; /* larger */
  color: #dbe3ff;
  font-size: 17px; /* larger */
}
.accent-primary { color: var(--primary); font-weight: 600; }
.accent-pink { color: var(--pink); font-weight: 600; }
.accent-green { color: var(--green); font-weight: 600; }

/* CTA buttons */
.cta { display: flex; justify-content: center; gap: 14px; margin-top: 20px; }
.btn {
  display: inline-block;
  padding: 14px 20px; /* larger */
  border-radius: 14px; /* slightly larger */
  font-weight: 700;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  color: #0b1020;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  box-shadow: 0 8px 28px rgba(108, 140, 255, 0.28); /* larger */
}
.btn.primary:hover { box-shadow: 0 10px 34px rgba(108, 140, 255, 0.4); }
.btn.ghost {
  color: var(--text);
  border-color: var(--card-border);
  background: rgba(255, 255, 255, 0.05);
}
.btn.ghost:hover {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
}

/* Decorative divider */
.divider {
  height: 48px;
  margin: 8px 0 0;
  background:
    radial-gradient(50% 100% at 50% 100%, rgba(138,169,255,0.25) 0%, transparent 70%);
  filter: blur(16px);
}

/* --- Features --- */
.features {
  margin: 12px auto 0;
  padding: 10px 4px;
}
.section-title {
  margin: 0 0 14px;
  font-size: 22px;
  color: var(--muted);
  text-align: center;
}
.feature-grid {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 14px;
 }
 .feature-grid.grid-5 {
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
  }
  .feature-stack {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .feature-card {
    padding: 18px;
    border-radius: 16px;
    border: 1px solid var(--card-border);
    background: rgba(18, 22, 45, 0.5);
  }
  .feature-stack .feature-card {
    padding: 22px;
    border-radius: 18px;
    background: rgba(18, 22, 45, 0.55);
    position: relative;
  }
  .feature-stack .feature-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(180deg, var(--primary), var(--pink), var(--green));
    border-radius: 4px;
  }
  .feature-stack .feature-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
  }
.feature-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  background: linear-gradient(90deg, var(--primary), var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.feature-card p {
  margin: 0 0 6px;
  color: #dbe3ff;
}
/* Bullet list for module details */
.feature-list {
  margin: 6px 0 0;
  padding-left: 18px;
  color: #dbe3ff;
}
.feature-list li { margin: 4px 0; }

/* --- Use Cases Chips --- */
.usecases {
  margin: 8px auto 0;
  padding: 6px 4px;
}
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.chip {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  font-weight: 600;
}

/* Bottom ribbon */
.ribbon {
  margin: 18px auto 0;
  padding: 18px;
  text-align: center;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  background: linear-gradient(90deg, rgba(138,169,255,0.15), rgba(255,126,182,0.15), rgba(108,229,177,0.15));
}
.ribbon p {
  margin: 0;
  font-weight: 700;
}

/* --- Footer --- */
.footer {
  margin: 24px 0 0; /* larger */
  padding: 22px 0; /* larger */
  color: var(--muted);
  text-align: center;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
  .feature-grid.grid-5 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .topbar { padding: 12px 14px; border-radius: 14px; }
  .brand-name { font-size: clamp(18px, 5.5vw, 26px); }
  .hero { padding: 40px 20px; border-radius: 20px; }
  .brand-title { font-size: clamp(42px, 9vw, 76px); }
  .cta { flex-direction: column; }
  .btn { width: 100%; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-grid.grid-5 { grid-template-columns: 1fr; }
}