.landing-page {
  background:
    radial-gradient(circle at 12% 8%, rgba(59, 130, 246, 0.22), transparent 32rem),
    radial-gradient(circle at 88% 12%, rgba(6, 182, 212, 0.18), transparent 30rem),
    linear-gradient(145deg, #071127 0%, var(--dark) 46%, #04111c 100%);
}

.landing-page::before {
  position: fixed;
  inset: 0;
  pointer-events: none;
  content: "";
  opacity: 0.13;
  background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black, transparent 70%);
}

.page-shell { position: relative; width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.site-header { height: 86px; display: flex; align-items: center; justify-content: flex-end; border-bottom: 1px solid var(--line); }
.login-link { padding: 10px 20px; border: 1px solid rgba(103, 232, 249, .35); border-radius: 999px; color: #cffafe; font-size: 14px; font-weight: 700; text-decoration: none; transition: .2s ease; }
.login-link:hover { border-color: var(--cyan); background: rgba(6,182,212,.1); }

.hero { min-height: calc(100vh - 86px); display: grid; grid-template-columns: 1.02fr .98fr; gap: clamp(40px, 7vw, 90px); align-items: center; padding: 70px 0 96px; }
.eyebrow { margin: 0 0 20px; color: #67e8f9; font-size: 12px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
h1 { max-width: 690px; margin: 0; font-size: clamp(3rem, 6.3vw, 5.75rem); line-height: .98; letter-spacing: -.062em; }
.lead { max-width: 620px; margin: 28px 0 0; color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); line-height: 1.7; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; padding: 0 24px; border: 1px solid transparent; border-radius: 12px; font-size: 14px; font-weight: 800; text-decoration: none; transition: transform .2s ease, background .2s ease, box-shadow .2s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: linear-gradient(100deg, var(--blue), var(--cyan)); box-shadow: 0 12px 35px rgba(6,182,212,.2); }
.signal-list { display: flex; flex-wrap: wrap; gap: 10px 25px; margin: 32px 0 0; padding: 0; color: #aec0d7; list-style: none; font-size: 13px; }
.signal-list li::before { display: inline-block; width: 6px; height: 6px; margin: 0 9px 1px 0; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); content: ""; }

.visual { min-height: 520px; display: grid; place-items: center; }
.product-logo { width: min(100%, 540px); filter: drop-shadow(0 20px 36px rgba(0,0,0,.55)); }
footer { min-height: 80px; display: flex; align-items: center; border-top: 1px solid var(--line); color: #718198; font-size: 12px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 80px; }
  .hero-copy { text-align: center; }
  .lead { margin-inline: auto; }
  .hero-actions, .signal-list { justify-content: center; }
  .visual { min-height: 460px; }
}

@media (max-width: 560px) {
  .page-shell { width: min(100% - 28px, 1180px); }
  .site-header { height: 72px; }
  .login-link { padding: 8px 15px; }
  .hero { min-height: auto; padding: 64px 0 70px; }
  h1 { font-size: clamp(2.65rem, 14vw, 4rem); }
  .hero-actions { flex-direction: column; }
  .visual { min-height: 370px; margin-top: 10px; }
  .product-logo { width: min(100%, 420px); }
}