.skip-link {
  position: absolute;
  left: 12px;
  top: -56px;
  z-index: 200;
  background: var(--accent);
  color: #082f49;
  padding: 10px 16px;
  border-radius: 10px;
  font-weight: 700;
}

.skip-link:focus {
  top: 12px;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(2, 6, 23, 0.88);
  border-bottom: 1px solid var(--card-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: relative;
  min-height: 72px;
  padding-block: 10px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.15rem;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: block;
  object-fit: cover;
  box-shadow: 0 10px 30px var(--accent-glow);
  flex-shrink: 0;
  transition:
    transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
    box-shadow 0.35s ease;
}

.fa-icon {
  line-height: 1;
  display: inline-block;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: rgba(148, 163, 184, 0.08);
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-toggle-icon {
  font-size: 1.1rem;
}

.nav-links a i {
  margin-right: 8px;
  opacity: 0.85;
  width: 1rem;
  text-align: center;
}

.nav-links .btn-primary i {
  color: #082f49;
  margin-right: 0;
  width: 1em;
  height: 1em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  padding: 10px 12px;
  border-radius: 999px;
  transition:
    color 0.3s ease,
    background 0.3s ease,
    transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  background: rgba(148, 163, 184, 0.08);
}

.nav-links .btn-primary {
  color: #082f49;
  padding: 0 16px;
  min-height: 44px;
  line-height: 1;
  gap: 8px;
}

.nav-links .btn-primary span {
  line-height: 1;
  display: inline-flex;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 0;
  border-radius: 14px;
  padding: 14px 20px;
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    background 0.35s ease,
    border-color 0.35s ease,
    color 0.35s ease;
  min-height: 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.btn:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(135deg, #38bdf8, #0284c7);
  color: #082f49;
  box-shadow: 0 16px 40px var(--accent-glow);
}

.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 28%,
    rgba(255, 255, 255, 0.42) 50%,
    transparent 72%
  );
  transform: translateX(-130%);
  transition: transform 0.65s ease;
  pointer-events: none;
  z-index: -1;
}

footer {
  padding: 28px 0 40px;
  border-top: 1px solid var(--card-border);
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links a {
  position: relative;
  display: inline-flex;
  align-items: center;
  transition: color 0.3s ease, transform 0.3s ease;
}

.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), #0284c7);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.footer-links a:hover,
.footer-links a:focus-visible,
.footer-links a[aria-current="page"] {
  color: var(--text);
}

.footer-links a[aria-current="page"]::after {
  transform: scaleX(1);
}

.footer-links a i {
  margin-right: 6px;
  font-size: 0.85rem;
}

.mobile-nav-backdrop {
  display: none;
}

@media (hover: hover) and (pointer: fine) {
  .brand:hover .brand-mark {
    transform: scale(1.08) rotate(-4deg);
    box-shadow: 0 14px 36px var(--accent-glow);
  }

  .nav-links a:not(.btn-primary):hover {
    transform: translateY(-2px);
  }

  .nav-links .btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 20px 48px rgba(56, 189, 248, 0.45);
  }

  .nav-links .btn-primary:hover::after {
    transform: translateX(130%);
  }

  .btn-primary:hover {
    background: linear-gradient(135deg, #7dd3fc, #0284c7);
    box-shadow: 0 22px 50px rgba(56, 189, 248, 0.5);
  }

  .btn-primary:hover::after {
    transform: translateX(130%);
  }

  .footer-links a:hover {
    transform: translateY(-2px);
  }

  .footer-links a:hover::after {
    transform: scaleX(1);
  }
}

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
  }

  .mobile-nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(2, 6, 23, 0.55);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s, visibility 0.25s;
    z-index: 90;
    border: 0;
    cursor: pointer;
  }

  .mobile-nav-backdrop.is-open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: min(88vw, 320px);
    height: 100dvh;
    height: 100vh;
    padding: 88px 20px 24px;
    padding: calc(88px + env(safe-area-inset-top, 0px)) 20px max(24px, env(safe-area-inset-bottom, 0px));
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    background: rgba(2, 6, 23, 0.98);
    border-left: 1px solid var(--card-border);
    box-shadow: -20px 0 60px rgba(2, 6, 23, 0.45);
    transform: translateX(100%);
    transition: transform 0.28s ease, visibility 0.28s ease;
    z-index: 95;
    overflow-y: auto;
    visibility: hidden;
  }

  .nav-links.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-links a {
    width: 100%;
    border-radius: 12px;
    padding: 14px 16px;
    font-size: 1rem;
  }

  .nav-links .btn-primary {
    margin-top: 8px;
    justify-content: center;
    padding: 14px 16px;
  }

  .footer-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-links {
    width: 100%;
    gap: 12px 18px;
  }

  body.nav-open {
    overflow: hidden;
  }

  body.nav-open .nav {
    background: #020617;
  }
}

@media (max-width: 480px) {
  .brand {
    font-size: 1rem;
    gap: 10px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }
}

@supports (padding: max(0px)) {
  .nav {
    padding-left: max(0px, env(safe-area-inset-left));
    padding-right: max(0px, env(safe-area-inset-right));
  }

  footer {
    padding-bottom: max(40px, calc(40px + env(safe-area-inset-bottom)));
  }
}