:root {
  --header-shell-height: 76px;
}

header {
  position: sticky;
  top: 0;
  z-index: 180;
  background:
    linear-gradient(112deg, rgba(4, 16, 29, 0.985), rgba(8, 29, 49, 0.965)),
    radial-gradient(980px 320px at 2% -32%, rgba(40, 188, 230, 0.26), transparent 72%),
    radial-gradient(760px 280px at 98% -38%, rgba(214, 172, 84, 0.14), transparent 76%),
    radial-gradient(900px 300px at 52% -46%, rgba(21, 130, 172, 0.2), transparent 72%);
  border-bottom: 1px solid rgba(168, 223, 246, 0.26);
  box-shadow: 0 26px 72px rgba(2, 10, 18, 0.54);
  backdrop-filter: blur(16px) saturate(138%);
}

header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(194, 237, 255, 0.34), transparent);
  pointer-events: none;
}

.masthead {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.16rem;
  min-height: 76px;
  padding: 0.7rem 0;
  color: rgba(234, 248, 255, 0.96);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  color: inherit;
  text-decoration: none;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 11px;
  border: 1px solid rgba(178, 225, 244, 0.5);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.98), rgba(228, 243, 251, 0.84));
  box-shadow:
    0 12px 28px rgba(2, 12, 22, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.88);
}

.brand-text {
  display: inline-flex;
  align-items: baseline;
}

.brand-wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.42rem;
  line-height: 1;
}

.brand-name {
  font-size: 1.16rem;
  font-weight: 800;
  letter-spacing: -0.014em;
  color: rgba(244, 253, 255, 0.99);
}

.brand-suffix {
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid rgba(173, 219, 240, 0.38);
  color: rgba(217, 241, 252, 0.95);
  background: rgba(11, 53, 78, 0.74);
  padding: 0.2rem 0.42rem;
}

.nav {
  position: relative;
  z-index: 190;
  padding-bottom: 0;
  margin-bottom: 0;
}

.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
  gap: 0.44rem;
}

.nav a,
.nav button {
  color: rgba(228, 246, 255, 0.96);
  font-weight: 635;
  letter-spacing: 0.006em;
}

.nav-item {
  position: relative;
  isolation: isolate;
  padding-bottom: 20px;
  margin-bottom: -20px;
}

.nav-trigger,
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  border-radius: 999px;
  border: 1px solid rgba(161, 217, 241, 0.34);
  background:
    linear-gradient(154deg, rgba(8, 45, 67, 0.84), rgba(7, 40, 60, 0.74)),
    radial-gradient(140px 100px at 0% 0%, rgba(96, 221, 252, 0.14), transparent 74%);
  box-shadow:
    inset 0 1px 0 rgba(201, 236, 251, 0.2),
    0 12px 30px rgba(2, 12, 22, 0.28);
  padding: 0.56rem 0.9rem;
  font-size: 0.96rem;
  cursor: pointer;
  text-decoration: none;
  transition:
    transform var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out);
}

.nav-trigger:hover,
.nav-trigger:focus,
.nav-link:hover,
.nav-link:focus,
.nav-item--open .nav-trigger {
  transform: translateY(-1px) scale(1.01);
  border-color: rgba(194, 236, 252, 0.64);
  background: rgba(12, 63, 91, 0.92);
  box-shadow:
    inset 0 1px 0 rgba(224, 246, 255, 0.28),
    0 18px 42px rgba(2, 12, 22, 0.4);
}

.nav-caret {
  width: 0.5rem;
  height: 0.5rem;
  border-right: 2px solid rgba(218, 245, 255, 0.84);
  border-bottom: 2px solid rgba(218, 245, 255, 0.84);
  transform: rotate(45deg) translateY(-1px);
  border-radius: 1px;
  transition: transform var(--dur-fast) var(--ease-out);
}

.nav-item--open .nav-caret {
  transform: rotate(-135deg) translateY(-1px);
}

.nav a.nav-cta {
  border-radius: 999px;
  border: 1px solid rgba(178, 230, 250, 0.54);
  background: var(--gradient-accent);
  color: rgba(247, 253, 255, 0.98);
  box-shadow:
    inset 0 1px 0 rgba(240, 252, 255, 0.24),
    0 18px 40px rgba(2, 12, 22, 0.34);
  padding: 0.56rem 1.08rem;
}

.nav a.nav-cta:hover,
.nav a.nav-cta:focus {
  transform: translateY(-1px);
}

.mega-backdrop {
  position: fixed;
  inset: var(--header-shell-height) 0 0;
  z-index: 160;
  background:
    linear-gradient(180deg, rgba(4, 14, 25, 0.66), rgba(4, 14, 25, 0.5)),
    radial-gradient(840px 420px at 50% 0%, rgba(31, 164, 205, 0.14), transparent 78%);
  backdrop-filter: blur(6px) saturate(122%);
  pointer-events: auto;
  cursor: default;
}

.mega-bridge {
  position: fixed;
  left: 0;
  right: 0;
  top: calc(var(--header-shell-height) - 16px);
  width: 100vw;
  height: 72px;
  transform: none;
  z-index: 188;
  pointer-events: auto;
  background: transparent;
}

.mega {
  position: fixed;
  left: 50%;
  top: calc(var(--header-shell-height) + 2px);
  width: min(1320px, 97vw);
  max-height: calc(100vh - 92px);
  overflow: auto;
  z-index: 195;
  opacity: 0;
  transform: translate(-50%, -4px) scale(0.996);
  will-change: opacity, transform;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity var(--dur-med) var(--ease-out),
    transform var(--dur-med) var(--ease-out);
}

.nav-item--open .mega {
  opacity: 1;
  transform: translate(-50%, 0) scale(1);
  pointer-events: auto;
  visibility: visible;
  transition:
    opacity var(--dur-med) var(--ease-out),
    transform var(--dur-med) var(--ease-out);
}

.mega-inner {
  --surface-luma: 0.1;
  position: relative;
  border-radius: 26px;
  border: 1px solid rgba(156, 214, 239, 0.32);
  background:
    radial-gradient(880px 430px at 0% -26%, rgba(41, 182, 223, 0.26), transparent 66%),
    radial-gradient(560px 260px at 100% -20%, rgba(217, 176, 88, 0.18), transparent 72%),
    linear-gradient(156deg, rgba(6, 24, 39, 0.99), rgba(9, 36, 56, 0.97));
  box-shadow:
    0 50px 116px rgba(1, 10, 19, 0.64),
    inset 0 1px 0 rgba(203, 239, 255, 0.18);
  overflow: hidden;
}

.mega-inner::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    repeating-linear-gradient(
      -38deg,
      rgba(145, 219, 247, 0.05) 0,
      rgba(145, 219, 247, 0.05) 1px,
      transparent 1px,
      transparent 26px
    );
}

.mega-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 0.92rem;
  padding: 1.22rem;
}

.mega-col {
  --surface-luma: 0.15;
  border-radius: 15px;
  border: 1px solid rgba(157, 217, 242, 0.24);
  background:
    radial-gradient(280px 140px at 0% 0%, rgba(60, 201, 238, 0.14), transparent 72%),
    rgba(8, 45, 66, 0.62);
  box-shadow: inset 0 1px 0 rgba(196, 231, 248, 0.11);
  padding: 0.84rem;
}

.mega-title {
  margin-bottom: 0.62rem;
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(190, 228, 246, 0.76);
}

.mega-link {
  position: relative;
  display: grid;
  gap: 0.16rem;
  border-radius: 11px;
  border: 1px solid transparent;
  color: rgba(229, 248, 255, 0.96);
  text-decoration: none;
  padding: 0.6rem 0.58rem 0.62rem 0.86rem;
  transition:
    transform var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out);
}

.mega-link::before {
  content: "";
  position: absolute;
  left: 0.34rem;
  top: 0.86rem;
  width: 0.32rem;
  height: 0.32rem;
  border-radius: 999px;
  background: linear-gradient(130deg, rgba(118, 226, 255, 0.95), rgba(39, 186, 228, 0.92));
  box-shadow: 0 0 0 2px rgba(103, 207, 243, 0.14);
}

.mega-link:hover,
.mega-link:focus {
  transform: translateY(-1px);
  border-color: rgba(184, 232, 251, 0.46);
  background: rgba(11, 58, 82, 0.66);
}

.mega-link-title {
  font-weight: 730;
  letter-spacing: -0.01em;
}

.mega-link-desc {
  font-size: 0.94rem;
  line-height: 1.46;
  color: rgba(242, 251, 255, 0.998);
  font-weight: 560;
}

.mega-feature {
  display: flex;
}

.mega-feature-card {
  --surface-luma: 0.93;
  width: 100%;
  display: grid;
  gap: 0.54rem;
  align-content: start;
  border-radius: 16px;
  border: 1px solid rgba(170, 222, 244, 0.38);
  background: linear-gradient(162deg, rgba(251, 254, 255, 0.97), rgba(240, 249, 254, 0.92));
  box-shadow: 0 30px 72px rgba(1, 11, 20, 0.38);
  color: rgba(8, 42, 62, 0.94);
  padding: 0.92rem;
}

.mega-feature-card--dark {
  --surface-luma: 0.14;
  border-color: rgba(173, 225, 248, 0.36);
  background:
    radial-gradient(360px 180px at 0% 0%, rgba(55, 198, 236, 0.18), transparent 72%),
    linear-gradient(164deg, rgba(8, 41, 60, 0.98), rgba(11, 49, 73, 0.96));
  color: rgba(234, 248, 255, 0.95);
}

.mega-feature-kicker {
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(16, 66, 95, 0.74);
}

.mega-feature-card--dark .mega-feature-kicker {
  color: rgba(193, 233, 250, 0.76);
}

.mega-feature-title {
  font-size: 1.14rem;
  font-weight: 790;
  letter-spacing: -0.02em;
}

.mega-feature-body {
  color: rgba(21, 78, 106, 0.86);
  line-height: 1.4;
  font-weight: 560;
}

.mega-feature-card--dark .mega-feature-body {
  color: rgba(222, 244, 253, 0.94);
  font-weight: 560;
}

.mega-feature-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.56rem;
  margin-top: 0.06rem;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(164, 220, 244, 0.4);
  background:
    linear-gradient(158deg, rgba(8, 43, 65, 0.82), rgba(8, 48, 72, 0.76)),
    radial-gradient(120px 80px at 0% 0%, rgba(88, 216, 249, 0.2), transparent 74%);
  box-shadow:
    inset 0 1px 0 rgba(209, 242, 255, 0.22),
    0 12px 28px rgba(2, 12, 22, 0.38);
  padding: 11px;
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: rgba(220, 246, 255, 0.93);
}

.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 6px;
}

.nav-panel {
  display: none;
}

.nav-panel.open {
  position: fixed;
  inset: 0;
  z-index: 205;
  display: block;
  background: rgba(4, 14, 25, 0.76);
  backdrop-filter: blur(12px);
}

.nav-panel-inner {
  width: min(980px, 92vw);
  margin: 4.1rem auto 0;
  border-radius: 22px;
  border: 1px solid rgba(145, 206, 233, 0.28);
  background:
    radial-gradient(640px 280px at 0% -22%, rgba(36, 170, 211, 0.22), transparent 62%),
    linear-gradient(156deg, rgba(8, 33, 50, 0.98), rgba(11, 45, 68, 0.95));
  box-shadow: 0 30px 84px rgba(1, 10, 18, 0.6);
  padding: 1.1rem 1.08rem 1.24rem;
}

.nav-panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-panel-title {
  color: rgba(237, 250, 255, 0.95);
  font-weight: 760;
  letter-spacing: -0.02em;
}

.nav-close {
  border-radius: 10px;
  border: 1px solid rgba(161, 222, 249, 0.34);
  background: rgba(8, 45, 66, 0.8);
  color: rgba(221, 246, 255, 0.97);
  font-weight: 650;
  padding: 0.53rem 0.8rem;
}

.nav-panel-grid {
  margin-top: 0.92rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.nav-group {
  border-radius: 13px;
  border: 1px solid rgba(149, 210, 236, 0.22);
  background: rgba(9, 47, 69, 0.6);
  padding: 0.76rem 0.78rem 0.84rem;
}

.nav-group-title {
  margin-bottom: 0.5rem;
  font-size: 0.76rem;
  font-weight: 760;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(192, 231, 248, 0.77);
}

.nav-group a {
  display: block;
  padding: 0.34rem 0;
  color: rgba(221, 246, 255, 0.93);
  font-weight: 580;
}

.nav-panel-cta {
  margin-top: 0.92rem;
  display: flex;
  justify-content: flex-end;
}

@media (max-width: 1060px) {
  .mega-grid {
    grid-template-columns: 1fr 1fr;
  }

  .mega-feature {
    grid-column: 1 / -1;
  }
}

@media (max-width: 1240px) {
  .nav-links {
    gap: 0.3rem;
  }

  .nav-trigger,
  .nav-link {
    padding: 0.54rem 0.74rem;
    font-size: 0.94rem;
  }
}

@media (max-width: 860px) {
  :root {
    --header-shell-height: 64px;
  }

  .nav {
    padding-bottom: 0;
    margin-bottom: 0;
  }

  .masthead {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
    padding: 0.56rem 0;
  }

  .nav-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-links--desktop {
    display: none;
  }

  .nav {
    margin-left: auto;
  }

  .mega-backdrop,
  .mega-bridge,
  .mega {
    display: none !important;
  }
}

@media (max-width: 620px) {
  .nav-panel-inner {
    margin-top: 3.4rem;
  }

  .brand-suffix {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .mega,
  .nav-trigger,
  .nav-link,
  .nav a.nav-cta {
    transition: none;
  }

  .nav a.nav-cta:hover,
  .nav a.nav-cta:focus,
  .nav-trigger:hover,
  .nav-trigger:focus,
  .nav-link:hover,
  .nav-link:focus {
    transform: none;
  }
}