:root {
  --bg: #eef9ff;
  --bg2: #dff5ff;
  --card: rgba(255,255,255,0.78);
  --card-border: rgba(21, 103, 174, 0.12);
  --text: #0d2d4d;
  --muted: #1bbfd5;
  --blue: #0b4c88;
  --teal: #18d1d7;
  --teal-soft: #7decef;
  --shadow: 0 18px 50px rgba(15, 75, 123, 0.12);
}

* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 18%, rgba(24, 209, 215, 0.22), transparent 24%),
    radial-gradient(circle at 82% 12%, rgba(11, 76, 136, 0.13), transparent 26%),
    linear-gradient(180deg, #f5fcff 0%, #eaf8ff 40%, #f6fdff 100%);
  position: relative;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(13, 45, 77, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 45, 77, 0.03) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, black 45%, transparent 95%);
  pointer-events: none;
}

.bg-orb {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  pointer-events: none;
}
.orb-1 {
  left: -70px;
  top: 20px;
  background: rgba(24, 209, 215, 0.35);
}
.orb-2 {
  right: -90px;
  bottom: 40px;
  background: rgba(11, 76, 136, 0.22);
}

.site-header {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 26px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  letter-spacing: -0.02em;
}
.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}
.brand span {
  font-size: 1.4rem;
}

.nav-button,
.primary-button,
.secondary-button {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 16px;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.nav-button:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-1px);
}
.nav-button {
  color: var(--blue);
  background: rgba(255,255,255,0.68);
  border: 1px solid rgba(11, 76, 136, 0.1);
  box-shadow: 0 8px 20px rgba(15, 75, 123, 0.08);
}
.nav-button.active {
  background: linear-gradient(135deg, rgba(24, 209, 215, 0.18), rgba(11, 76, 136, 0.12));
}

.hero-shell {
  min-height: calc(100vh - 88px);
  padding: 20px 26px 40px;
  display: grid;
  place-items: center;
  position: relative;
  z-index: 1;
}

.hero-card {
  width: min(920px, 100%);
  background: linear-gradient(180deg, rgba(255,255,255,0.82), rgba(255,255,255,0.72));
  border: 1px solid rgba(11, 76, 136, 0.08);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  border-radius: 34px;
  padding: 56px 28px 52px;
  text-align: center;
}
.hero-card-small {
  width: min(640px, 100%);
}

.hero-logo {
  width: min(100%, 620px);
  height: auto;
  object-fit: contain;
  margin: 0 auto 10px;
  display: block;
  filter: drop-shadow(0 16px 26px rgba(11, 76, 136, 0.08));
}
.tools-logo {
  width: min(100%, 160px);
  margin-bottom: 20px;
}

.eyebrow {
  margin: 18px 0 26px;
  color: var(--blue);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.primary-button {
  background: linear-gradient(135deg, var(--teal), #8af1f2);
  color: #08314f;
  box-shadow: 0 12px 28px rgba(24, 209, 215, 0.24);
}
.secondary-button {
  color: white;
  background: linear-gradient(135deg, var(--blue), #1684c6);
  box-shadow: 0 12px 28px rgba(11, 76, 136, 0.18);
}

@media (max-width: 700px) {
  .site-header {
    padding-top: 22px;
  }
  .brand span {
    font-size: 1.1rem;
  }
  .brand img {
    width: 34px;
    height: 34px;
  }
  .hero-card {
    border-radius: 26px;
    padding: 38px 18px 36px;
  }
  .hero-logo {
    width: min(100%, 520px);
  }
  .eyebrow {
    font-size: 1.05rem;
    margin-top: 10px;
  }
}