:root {
  --ice: #eaf8ff;
  --snow: #f8fdff;
  --frost: #d6f3ff;
  --blue: #2c82c9;
  --blue-dark: #0f5e9b;
  --deep: #081f33;
  --steel: #496879;
  --glass: rgba(255, 255, 255, 0.76);
  --border: rgba(44, 130, 201, 0.18);
  --shadow: 0 22px 70px rgba(8, 31, 51, 0.14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--deep);
  background:
    radial-gradient(circle at top left, rgba(125, 215, 255, 0.45), transparent 30%),
    radial-gradient(circle at 85% 18%, rgba(44, 130, 201, 0.18), transparent 28%),
    linear-gradient(180deg, #f8fdff 0%, #eaf8ff 45%, #ffffff 100%);
}

a { color: inherit; }

.site-header {
  min-height: 100vh;
  padding: 22px 6vw 76px;
  position: relative;
  overflow: hidden;
}

.site-header::after {
  content: "";
  position: absolute;
  width: 620px;
  height: 620px;
  right: -240px;
  top: 140px;
  border-radius: 50%;
  background: rgba(44, 130, 201, 0.12);
  filter: blur(10px);
  z-index: -1;
}

.nav {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand img {
  width: 176px;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links a {
  text-decoration: none;
  font-weight: 800;
  font-size: 0.95rem;
  color: var(--deep);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--deep);
  border-radius: 12px;
  padding: 9px 12px;
  font-size: 1.25rem;
}

.hero {
  max-width: 1180px;
  margin: 92px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
  gap: 54px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue-dark);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 900;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  max-width: 660px;
  margin-bottom: 20px;
  font-size: clamp(3.2rem, 8vw, 6.7rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1;
  letter-spacing: -0.045em;
  margin-bottom: 18px;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}

.lead {
  max-width: 680px;
  color: var(--steel);
  font-size: clamp(1.06rem, 2vw, 1.32rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.button,
.signup-form button {
  border: 0;
  border-radius: 999px;
  padding: 15px 22px;
  text-decoration: none;
  font-weight: 900;
  cursor: pointer;
  font-size: 1rem;
}

.primary,
.signup-form button {
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: white;
  box-shadow: 0 14px 28px rgba(44, 130, 201, 0.28);
}

.secondary {
  background: rgba(255, 255, 255, 0.72);
  color: var(--deep);
  border: 1px solid var(--border);
}

.product-card {
  position: relative;
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(255,255,255,0.92), rgba(219,244,255,0.76));
  box-shadow: var(--shadow);
  text-align: center;
  overflow: hidden;
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: 26px;
  pointer-events: none;
}

.badge {
  display: inline-flex;
  margin-bottom: 20px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(44, 130, 201, 0.12);
  color: var(--blue-dark);
  font-weight: 900;
  font-size: 0.84rem;
}

.clip-art {
  width: min(100%, 430px);
  max-height: 540px;
  object-fit: contain;
  display: block;
  margin: 0 auto 22px;
  border-radius: 28px;
  box-shadow: 0 18px 36px rgba(8,31,51,0.10);
  background: white;
  position: relative;
}

.product-card p {
  color: var(--steel);
  line-height: 1.55;
  margin-bottom: 0;
  position: relative;
}

.section,
.spec-section,
.story,
.cta {
  max-width: 1180px;
  margin: 0 auto;
  padding: 90px 6vw;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-heading p,
.spec-copy p,
.story-card p,
.cta p {
  color: var(--steel);
  line-height: 1.65;
  font-size: 1.05rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature {
  min-height: 240px;
  padding: 30px;
  border-radius: 28px;
  background: var(--glass);
  border: 1px solid var(--border);
  box-shadow: 0 18px 40px rgba(8, 31, 51, 0.08);
}

.icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 24px;
  border-radius: 18px;
  background: rgba(44, 130, 201, 0.12);
  color: var(--blue-dark);
  font-size: 1.35rem;
}

.feature p {
  color: var(--steel);
  line-height: 1.6;
}

.spec-section {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 38px;
  align-items: start;
}

.spec-list {
  display: grid;
  gap: 14px;
}

.spec-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 24px;
  border-radius: 22px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.78);
}

.spec-list strong { font-size: 1.05rem; }

.spec-list span {
  color: var(--blue-dark);
  font-weight: 800;
  text-align: right;
}

.story-card,
.cta {
  border: 1px solid var(--border);
  border-radius: 34px;
  background: linear-gradient(145deg, rgba(255,255,255,0.86), rgba(218,244,255,0.78));
  box-shadow: var(--shadow);
}

.story-card { padding: 46px; }

.cta {
  margin-bottom: 90px;
  text-align: center;
}

.cta h2,
.cta p {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.email-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin: 30px auto 12px;
  padding: 18px 28px;
  border-radius: 999px;
  background: white;
  border: 1px solid var(--border);
  color: var(--blue-dark);
  font-weight: 900;
  font-size: clamp(1rem, 2vw, 1.25rem);
  text-decoration: none;
  box-shadow: 0 14px 30px rgba(8, 31, 51, 0.08);
}

.fine-print { font-size: 0.9rem !important; }

.footer {
  padding: 36px 6vw 46px;
  text-align: center;
  color: var(--steel);
}

.footer img {
  width: 138px;
  margin-bottom: 10px;
}

@media (max-width: 860px) {
  .menu-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 92px;
    right: 6vw;
    left: 6vw;
    padding: 18px;
    border-radius: 22px;
    background: white;
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: flex-start;
    z-index: 5;
  }

  .nav-links.open { display: flex; }

  .hero,
  .spec-section {
    grid-template-columns: 1fr;
  }

  .hero { margin-top: 58px; }

  .feature-grid { grid-template-columns: 1fr; }

  .email-card {
    border-radius: 24px;
    width: 100%;
    padding: 18px 14px;
  }

  .spec-list div {
    align-items: flex-start;
    flex-direction: column;
  }

  .spec-list span { text-align: left; }
}