/* Critical compatibility rules kept in a unique file to bypass stale CDN assets. */
.nav-links {
  gap: 1.25rem;
}

.nav-menu {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.nav-submenu-toggle {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  cursor: pointer;
}

.nav-submenu {
  position: absolute;
  top: calc(100% + 0.65rem);
  left: -0.75rem;
  z-index: 120;
  display: none;
  min-width: 240px;
  padding: 0.55rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.nav-submenu[hidden] { display: none; }
.nav-submenu-end { right: -0.75rem; left: auto; }
.nav-submenu-toggle[aria-expanded="true"] + .nav-submenu { display: block; }

.nav-submenu a:not(.btn):not(.nav-signin) {
  display: block;
  padding: 0.65rem 0.75rem;
  border-radius: calc(var(--radius-sm) - 2px);
  font-size: 0.86rem;
  white-space: nowrap;
}

.nav-submenu a:hover,
.nav-submenu a:focus-visible { background: var(--surface-2); }

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 0.75fr);
  gap: 2rem;
  align-items: start;
}

.contact-page .detail-main { padding-top: 0; }

.contact-form-panel {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-glow);
}

.contact-form-heading {
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.contact-form-heading h2 {
  margin: 0 0 0.4rem;
  font-size: 1.35rem;
}

.contact-form-heading p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem 1rem;
}

.contact-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-width: 0;
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 650;
}

.contact-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  min-height: 1.35rem;
}

.contact-label .signup-optional {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
}

.contact-field-wide,
.contact-form-actions,
.contact-form-status { grid-column: 1 / -1; }

.contact-field input,
.contact-field select,
.contact-field textarea {
  width: 100%;
  min-height: 46px;
  padding: 0.75rem 0.85rem;
  color: var(--text-primary);
  background: var(--bg-alt);
  border: 1px solid color-mix(in srgb, var(--text-primary) 16%, transparent);
  border-radius: var(--radius-sm);
  font: inherit;
  font-weight: 400;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.contact-field textarea { min-height: 108px; resize: vertical; }

.contact-field input::placeholder,
.contact-field textarea::placeholder { color: var(--text-muted); opacity: 1; }

.contact-field input:hover,
.contact-field select:hover,
.contact-field textarea:hover { border-color: color-mix(in srgb, var(--accent) 42%, var(--border)); }

.contact-field input:focus,
.contact-field select:focus,
.contact-field textarea:focus {
  outline: 3px solid color-mix(in srgb, var(--accent) 24%, transparent);
  outline-offset: 1px;
  border-color: var(--accent);
  background: var(--surface);
}

.contact-form-actions {
  display: flex;
  align-items: center;
  padding-top: 0.35rem;
}

.contact-form-actions .btn { min-width: 160px; }

.contact-context {
  position: sticky;
  top: 7rem;
  padding: 1.75rem;
  color: var(--text-secondary);
  background: linear-gradient(160deg, var(--accent-soft), var(--surface) 48%);
  border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border));
  border-radius: var(--radius-sm);
}

.contact-context-kicker {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.contact-context h2 { margin: 0; font-size: 1.35rem; }

.contact-steps {
  display: grid;
  gap: 1.25rem;
  margin: 1.5rem 0;
  padding: 0;
  list-style: none;
}

.contact-steps li { display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 0.8rem; }
.contact-steps li > span {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  border-radius: 50%;
  font-size: 0.78rem;
  font-weight: 750;
}
.contact-steps strong { display: block; color: var(--text-primary); font-size: 0.9rem; }
.contact-steps p { margin: 0.25rem 0 0; font-size: 0.84rem; line-height: 1.55; }

.contact-context-links {
  display: grid;
  gap: 0.65rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
}

@media (max-width: 1100px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links .btn { width: 100%; }
  .nav-menu { width: 100%; display: grid; grid-template-columns: 1fr auto; }
  .nav-menu-link { align-self: center; }
  .nav-submenu-toggle { width: 44px; height: 44px; }
  .nav-submenu {
    position: static;
    grid-column: 1 / -1;
    width: 100%;
    min-width: 0;
    margin-top: 0.4rem;
    box-shadow: none;
  }
}

@media (max-width: 900px) {
  .contact-layout,
  .contact-form { grid-template-columns: 1fr; }
  .contact-field-wide,
  .contact-form-actions,
  .contact-form-status { grid-column: 1; }
  .contact-context { position: static; padding: 1.25rem; }
  .contact-form-actions .btn { width: 100%; }
}

@media (max-width: 700px) {
  .contact-form-panel { padding: 1.25rem; }
}