:root {
  --bg-deep: #081a25;
  --bg-mid: #0d3142;
  --sea: #10758a;
  --sea-soft: #8fe0ea;
  --sand: #f1dfb3;
  --ink: #ebfbff;
  --muted: rgba(235, 251, 255, 0.78);
  --card: rgba(255, 255, 255, 0.06);
  --line: rgba(173, 228, 235, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Trebuchet MS", "Segoe UI Variable", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(76, 180, 197, 0.18), transparent 22rem),
    radial-gradient(circle at top right, rgba(255, 223, 160, 0.14), transparent 18rem),
    linear-gradient(180deg, #0a1a27 0%, var(--bg-deep) 45%, #07111a 100%);
}

.shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.topbar {
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.65rem 0.95rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
}

.brand-mark {
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #062230;
  background: linear-gradient(135deg, var(--sea-soft), var(--sand));
  font-weight: 800;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  padding: 2rem 0 3rem;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 0.8rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(143, 224, 234, 0.11);
  color: var(--sea-soft);
  font-weight: 700;
  font-size: 0.85rem;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.4rem, 5vw, 5.1rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.hero-copy p {
  width: min(42rem, 100%);
  margin: 1.2rem 0 0;
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.button,
.button-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.button {
  color: #072030;
  background: linear-gradient(135deg, var(--sea-soft), var(--sand));
  box-shadow: 0 20px 40px rgba(7, 24, 35, 0.22);
}

.button-secondary {
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-portrait-card {
  width: min(30rem, 100%);
  padding: 1.3rem;
  border-radius: 2rem;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at top, rgba(76, 180, 197, 0.16), transparent 40%),
    rgba(255, 255, 255, 0.04);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.24);
}

.hero-portrait {
  display: block;
  width: 100%;
  border-radius: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.portrait-copy {
  margin-top: 1rem;
}

.portrait-copy strong {
  font-size: 1.05rem;
}

.portrait-copy p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.section {
  padding: 1rem 0 4rem;
}

.section-heading {
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  margin: 0.2rem 0 0;
  font-size: clamp(1.9rem, 3vw, 3rem);
  letter-spacing: -0.04em;
}

.product-grid,
.feature-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.product-card,
.feature-panel {
  padding: 1.2rem;
  border-radius: 1.4rem;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.14);
}

.tag {
  display: inline-flex;
  padding: 0.3rem 0.65rem;
  border-radius: 999px;
  background: rgba(143, 224, 234, 0.1);
  color: var(--sea-soft);
  font-size: 0.8rem;
  font-weight: 700;
}

.product-card h3,
.feature-panel strong {
  display: block;
  margin: 0.9rem 0 0.55rem;
  font-size: 1.08rem;
}

.product-card p,
.feature-panel p,
.footer p {
  margin: 0;
  line-height: 1.65;
  color: var(--muted);
}

.footer {
  padding: 0 0 3rem;
}

@media (max-width: 960px) {
  .hero,
  .product-grid,
  .feature-band {
    grid-template-columns: 1fr;
  }
}