.site-header {
  padding: calc(env(safe-area-inset-top, 0px) + 0.75rem) clamp(1rem, 3vw, 3rem) 0;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 30;
  pointer-events: none;
  transition:
    padding 220ms ease,
    transform 220ms ease;
}

.site-header::before {
  content: "";
  position: absolute;
  top: calc(-1 * env(safe-area-inset-top, 0px));
  left: 0;
  right: 0;
  height: env(safe-area-inset-top, 0px);
  background: #120d0a;
  pointer-events: none;
  z-index: -1;
}

.site-header .nav-shell {
  pointer-events: auto;
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 100%;
  margin-inline: auto;
  gap: 0.75rem;
  padding: 0.56rem 0.78rem;
  backdrop-filter: blur(14px);
  background: rgba(23, 17, 13, 0.82);
  border: 1px solid rgba(242, 178, 121, 0.16);
  border-radius: 999px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: visible;
  transition:
    background 320ms ease,
    border-color 320ms ease,
    box-shadow 320ms ease,
    transform 360ms cubic-bezier(0.22, 1, 0.36, 1),
    padding 320ms ease,
    backdrop-filter 320ms ease,
    max-width 460ms cubic-bezier(0.22, 1, 0.36, 1);
}

.nav-shell::after {
  content: "";
  position: absolute;
  left: 10%;
  right: 10%;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(242, 178, 121, 0.85), transparent);
  opacity: 0;
  transform: scaleX(0.6);
  transform-origin: center;
  transition:
    opacity 260ms ease,
    transform 320ms cubic-bezier(0.22, 1, 0.36, 1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
  font-size: 1.18rem;
  min-width: 0;
}

.brand-logo {
  width: 3.55rem;
  height: 3.55rem;
  border-radius: 50%;
  object-fit: contain;
  background:
    radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.18), transparent 48%),
    rgba(255, 245, 230, 0.14);
  border: 1px solid rgba(242, 178, 121, 0.28);
  padding: 0.3rem;
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    0 10px 24px rgba(0, 0, 0, 0.26);
  transition:
    width 220ms ease,
    height 220ms ease,
    transform 220ms ease;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.contact-link {
  color: rgba(245, 230, 211, 0.92);
  font-weight: 700;
  padding: 0.52rem 0.88rem;
  border-radius: 999px;
  border: 1px solid rgba(242, 178, 121, 0.16);
  background: rgba(255, 241, 224, 0.05);
  transition:
    background 220ms ease,
    border-color 220ms ease,
    color 220ms ease;
}

.nav-panel {
  position: absolute;
  top: calc(100% + 0.9rem);
  right: 0;
  width: min(24rem, calc(100vw - 2rem));
  padding: 1rem;
  border-radius: 1.6rem;
  background:
    linear-gradient(180deg, rgba(23, 17, 13, 0.98), rgba(15, 11, 9, 0.98));
  border: 1px solid rgba(242, 178, 121, 0.16);
  box-shadow: var(--shadow);
  display: grid;
  gap: 1rem;
  opacity: 0;
  transform: translateY(-0.75rem) scale(0.96);
  transform-origin: top right;
  pointer-events: none;
  visibility: hidden;
  transition:
    opacity 220ms ease,
    transform 260ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0ms linear 260ms;
}

.nav-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background:
    radial-gradient(circle at top right, rgba(242, 178, 121, 0.08), transparent 34%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.02), transparent 30%);
  pointer-events: none;
}

.nav-panel.is-open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
  visibility: visible;
  transition:
    opacity 220ms ease,
    transform 260ms cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0ms linear 0ms;
}

.nav-links {
  display: grid;
  gap: 0.65rem;
  position: relative;
  z-index: 1;
}

.nav-links a {
  color: rgba(245, 230, 211, 0.82);
  font-weight: 700;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: rgba(255, 241, 224, 0.04);
  border: 1px solid rgba(242, 178, 121, 0.08);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  transform: translateX(0.2rem);
  border-color: rgba(242, 178, 121, 0.22);
  background: rgba(255, 241, 224, 0.08);
}

.nav-links a.is-active,
.contact-link.is-active {
  color: #ffe5c9;
  border-color: rgba(242, 178, 121, 0.42);
  background: rgba(180, 86, 40, 0.26);
  box-shadow: 0 0 0 1px rgba(242, 178, 121, 0.2) inset;
  cursor: default;
}

.nav-links a.is-active:hover,
.nav-links a.is-active:focus-visible,
.contact-link.is-active:hover,
.contact-link.is-active:focus-visible {
  transform: none;
  border-color: rgba(242, 178, 121, 0.42);
  background: rgba(180, 86, 40, 0.26);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.7rem;
  height: 2.7rem;
  border: 1px solid var(--line);
  background: rgba(255, 241, 224, 0.08);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  transition:
    transform 180ms ease,
    background 180ms ease,
    border-color 180ms ease;
}

.site-header.is-scrolled {
  padding-top: calc(env(safe-area-inset-top, 0px) + 0.05rem);
}

.site-header.is-scrolled .nav-shell {
  background: rgba(10, 8, 8, 0.74);
  max-width: min(100%, 52rem);
  border-color: rgba(242, 178, 121, 0.28);
  box-shadow:
    0 12px 24px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(242, 178, 121, 0.14) inset,
    0 0 24px rgba(242, 178, 121, 0.12);
  transform: translateY(-1px) scale(0.998);
  padding: 0.56rem 0.78rem;
  backdrop-filter: blur(19px);
}

.site-header.is-scrolled .nav-shell::after {
  opacity: 1;
  transform: scaleX(1);
}

.site-header.is-scrolled .brand-logo {
  width: 3.55rem;
  height: 3.55rem;
  transform: scale(0.98);
}

.site-header.is-scrolled .contact-link {
  background: rgba(255, 241, 224, 0.08);
  border-color: rgba(242, 178, 121, 0.28);
  padding: 0.52rem 0.88rem;
  font-size: 1rem;
}

.site-header.is-scrolled .nav-toggle {
  width: 2.7rem;
  height: 2.7rem;
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  transform: translateY(-1px);
  background: rgba(255, 241, 224, 0.12);
  border-color: rgba(242, 178, 121, 0.28);
}

.burger-lines {
  position: relative;
  width: 1.15rem;
  height: 0.95rem;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.burger-lines span {
  display: block;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transform-origin: center;
  transition:
    transform 220ms ease,
    opacity 180ms ease,
    width 220ms ease;
}

.nav-toggle[aria-expanded="true"] .burger-lines span:nth-child(1) {
  transform: translateY(0.4rem) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .burger-lines span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .burger-lines span:nth-child(3) {
  transform: translateY(-0.43rem) rotate(-45deg);
}

.grokage-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  border-radius: 1.15rem;
  background: #ffffff;
  color: #0b54a4;
  font-weight: 800;
  border: 1px solid rgba(11, 84, 164, 0.14);
  position: relative;
  z-index: 1;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
}

.grokage-card:hover,
.grokage-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.16);
}

.grokage-card img {
  width: 3rem;
  height: 3rem;
  object-fit: contain;
  flex: 0 0 auto;
}

.grokage-card span {
  line-height: 1.2;
}

@media (max-width: 720px) {
  .nav-shell {
    border-radius: 1.5rem;
    align-items: center;
  }

  .brand span {
    font-size: 1.1rem;
  }

  .brand-logo {
    width: 3.8rem;
    height: 3.8rem;
  }

  .contact-link {
    padding-inline: 0.8rem;
  }

  .nav-panel {
    width: min(22rem, calc(100vw - 2rem));
  }
}