/* Site header + full-width mobile menu */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  height: 64px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
  min-width: 0;
  flex: 0 1 auto;
  z-index: 2;
}

.site-logo:hover {
  text-decoration: none;
  color: var(--ink);
}

.site-logo svg {
  flex: none;
  width: 30px;
  height: 26px;
}

.site-logo__text {
  white-space: nowrap;
}

.site-logo .pdf {
  color: var(--indigo);
}

.site-nav__links {
  display: flex;
  gap: 22px;
  margin: 0 0 0 auto;
  font-weight: 500;
  font-size: .95rem;
  list-style: none;
  padding: 0;
}

.site-nav__links a {
  color: var(--ink-soft);
  text-decoration: none;
}

.site-nav__links a:hover,
.site-nav__links a.is-active {
  color: var(--ink);
  text-decoration: none;
}

.site-nav__links .is-soon {
  opacity: .55;
  cursor: default;
  pointer-events: none;
}

/* All Tools mega menu */
.site-nav__mega-item {
  position: static;
}

.site-nav__mega-toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font: inherit;
  cursor: pointer;
}

.site-nav__mega-toggle:hover,
.site-nav__mega-toggle[aria-expanded="true"] {
  color: var(--ink);
}

.site-nav__chevron {
  transition: transform .2s ease;
}

.site-nav__mega-toggle[aria-expanded="true"] .site-nav__chevron {
  transform: rotate(180deg);
}

.site-nav__mega {
  position: absolute;
  top: calc(100% + 1px);
  left: 50%;
  width: min(1420px, calc(100vw - 40px));
  max-height: calc(100vh - 88px);
  overflow: auto;
  padding: 12px;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 24px 24px;
  background:
    linear-gradient(135deg, rgba(91, 79, 233, .08), transparent 36%),
    linear-gradient(315deg, rgba(14, 159, 110, .07), transparent 34%),
    var(--paper);
  box-shadow: 0 24px 60px rgba(27, 32, 50, .16);
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, -8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
  z-index: 110;
}

.site-nav__mega-item.is-open .site-nav__mega {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.site-nav__mega-inner {
  position: relative;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line) 75%, transparent);
  border-radius: 18px;
  background: var(--paper);
}

.site-nav__mega-inner::before,
.site-nav__mega-inner::after {
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  filter: blur(2px);
  content: "";
  pointer-events: none;
}

.site-nav__mega-inner::before {
  top: -120px;
  right: 22%;
  background: rgba(91, 79, 233, .11);
}

.site-nav__mega-inner::after {
  top: 35px;
  right: -120px;
  background: rgba(14, 159, 110, .09);
}

.site-nav__mega-head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 100px;
  padding: 22px 26px;
  background:
    radial-gradient(circle at 78% -30%, rgba(14, 159, 110, .18), transparent 42%),
    linear-gradient(120deg, var(--indigo-tint), var(--paper-2));
}

.site-nav__mega-kicker {
  display: block;
  margin-bottom: 3px;
  color: var(--indigo);
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.site-nav__mega-head strong {
  display: block;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.site-nav__mega-head p {
  margin: 3px 0 0;
  color: var(--ink-soft);
  font-size: .86rem;
}

.site-nav__mega-trust {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.site-nav__mega-trust span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border: 1px solid rgba(91, 79, 233, .15);
  border-radius: 999px;
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  color: var(--ink-soft);
  font-size: .7rem;
  font-weight: 700;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}

.site-nav__mega-trust i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px var(--green-tint);
}

.site-nav__mega-all {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  padding: 11px 16px;
  border: 1px solid rgba(91, 79, 233, .25);
  border-radius: 999px;
  background: var(--paper);
  color: var(--indigo) !important;
  font-size: .82rem;
  font-weight: 700;
}

.site-nav__mega-all:hover {
  border-color: var(--indigo);
  text-decoration: none;
}

.site-nav__mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.45fr 1fr 1fr;
  gap: 12px;
  padding: 16px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--paper-2) 55%, transparent), transparent 42%);
}

.site-nav__mega-group {
  min-width: 0;
  padding: 13px 11px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: var(--paper);
  box-shadow: 0 5px 18px rgba(27, 32, 50, .035);
}

.site-nav__mega-group--convert {
  background: linear-gradient(155deg, var(--indigo-tint), var(--paper) 32%);
}

.site-nav__mega-group--image {
  background: linear-gradient(155deg, var(--green-tint), var(--paper) 32%);
}

.site-nav__mega-group--compress {
  background: linear-gradient(155deg, var(--green-tint), var(--paper) 30%);
}

.site-nav__mega-group--organize {
  background: linear-gradient(155deg, var(--warn-tint), var(--paper) 32%);
}

.site-nav__mega-group--edit {
  background: linear-gradient(155deg, var(--paper-2), var(--paper) 36%);
}

.site-nav__mega-group--compress ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.site-nav__mega-group h2 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 8px 8px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.site-nav__mega-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--indigo);
  box-shadow: 0 0 0 4px var(--indigo-tint);
}

.site-nav__mega-group--compress .site-nav__mega-dot,
.site-nav__mega-group--edit .site-nav__mega-dot {
  background: var(--green);
  box-shadow: 0 0 0 4px var(--green-tint);
}

.site-nav__mega-group ul {
  display: grid;
  gap: 3px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav__tool-link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 56px;
  padding: 7px 8px;
  border: 1px solid color-mix(in srgb, var(--line) 45%, transparent);
  border-radius: 11px;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  color: var(--ink) !important;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease, background .18s ease;
}

.site-nav__tool-link:hover {
  border-color: color-mix(in srgb, var(--indigo) 35%, var(--line));
  background: var(--paper);
  box-shadow: 0 7px 18px rgba(27, 32, 50, .08);
  transform: translateY(-2px);
  text-decoration: none;
}

.site-nav__tool-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 10px;
  background: var(--indigo-tint);
  box-shadow: inset 0 0 0 1px rgba(91, 79, 233, .08);
}

.site-nav__tool-icon svg {
  width: 22px;
  height: 22px;
}

.site-nav__tool-copy {
  min-width: 0;
  line-height: 1.25;
}

.site-nav__tool-copy strong,
.site-nav__tool-copy small {
  display: block;
}

.site-nav__tool-copy strong {
  color: var(--ink);
  font-size: .82rem;
  font-weight: 700;
}

.site-nav__tool-copy small {
  display: -webkit-box;
  overflow: hidden;
  margin-top: 3px;
  color: var(--ink-soft);
  font-size: .68rem;
  line-height: 1.3;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
}

.site-nav__tool-arrow {
  margin-left: auto;
  color: var(--indigo);
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity .18s ease, transform .18s ease;
}

.site-nav__tool-link:hover .site-nav__tool-arrow {
  opacity: 1;
  transform: translateX(0);
}

.site-nav__tool-link.is-soon {
  opacity: .55;
  pointer-events: none;
}

/* Hamburger — reset Bootstrap / UA button styles */
.site-nav__toggle {
  display: none;
  flex: none;
  position: relative;
  z-index: 2;
  box-sizing: border-box;
  width: 44px;
  height: 44px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line) !important;
  border-radius: 10px !important;
  background: var(--paper) !important;
  background-image: none !important;
  color: var(--ink) !important;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  box-shadow: none !important;
  outline: none !important;
  line-height: 1;
  text-shadow: none;
}

.site-nav__toggle:hover {
  border-color: var(--indigo);
  background: var(--indigo-tint);
}

.site-nav__toggle:focus {
  outline: none;
  box-shadow: none;
}

.site-nav__toggle:focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 2px;
}

.site-nav__burger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.site-nav__burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

.site-nav__backdrop {
  display: none;
}

.site-nav__panel {
  display: none;
}

@media (min-width: 769px) and (max-width: 1180px) {
  .site-nav__mega-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav__mega-trust {
    display: none;
  }
}

@media (max-width: 768px) {
  .site-nav {
    min-height: 56px;
    height: 56px;
    gap: 12px;
  }

  .site-logo {
    font-size: 1.1rem;
    gap: 8px;
  }

  .site-logo svg {
    width: 26px;
    height: 22px;
  }

  .site-nav__links--desktop {
    display: none !important;
  }

  .site-nav__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  body.bison-nav-open {
    overflow: hidden;
  }

  body.bison-nav-open .site-nav__burger span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  body.bison-nav-open .site-nav__burger span:nth-child(2) {
    opacity: 0;
  }

  body.bison-nav-open .site-nav__burger span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Full-width panel under the bar — no side drawer */
  .site-nav__panel {
    display: block;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    width: 100%;
    max-height: 0;
    overflow: hidden;
    background: var(--paper);
    border-bottom: 0 solid var(--line);
    box-shadow: none;
    opacity: 0;
    visibility: hidden;
    transition: max-height .28s ease, opacity .2s ease, visibility .2s, box-shadow .2s, border-width .2s;
    z-index: 1;
  }

  body.bison-nav-open .site-nav__panel {
    max-height: calc(100vh - 56px);
    overflow-y: auto;
    overscroll-behavior: contain;
    opacity: 1;
    visibility: visible;
    border-bottom-width: 1px;
    box-shadow: 0 16px 28px rgba(27, 32, 50, .12);
  }

  .site-nav__links--mobile {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 8px 0 12px;
  }

  .site-nav__links--mobile li {
    border-bottom: 1px solid var(--line);
  }

  .site-nav__links--mobile li:last-child {
    border-bottom: none;
  }

  .site-nav__links--mobile > li > a {
    display: block;
    padding: 15px 4px;
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 500;
  }

  .site-nav__links--mobile a.is-active {
    color: var(--indigo);
  }

  .site-nav__links--mobile .nav-hide-mobile {
    display: block;
  }

  .site-nav__links--mobile .site-nav__mega-item {
    border-bottom: 1px solid var(--line);
  }

  .site-nav__links--mobile .site-nav__mega-toggle {
    justify-content: space-between;
    width: 100%;
    padding: 15px 4px;
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 500;
  }

  .site-nav__links--mobile .site-nav__mega {
    position: static;
    width: auto;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: max-height .32s ease;
  }

  .site-nav__links--mobile .site-nav__mega-item.is-open .site-nav__mega {
    max-height: 1800px;
    transform: none;
  }

  .site-nav__links--mobile .site-nav__mega-inner {
    margin-bottom: 10px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--paper-2);
  }

  .site-nav__links--mobile .site-nav__mega-head {
    display: block;
    padding: 14px;
  }

  .site-nav__links--mobile .site-nav__mega-head p {
    font-size: .75rem;
  }

  .site-nav__links--mobile .site-nav__mega-trust {
    justify-content: flex-start;
    margin-top: 10px;
  }

  .site-nav__links--mobile .site-nav__mega-trust span {
    padding: 5px 8px;
    font-size: .62rem;
  }

  .site-nav__links--mobile .site-nav__mega-all {
    margin-top: 11px;
    padding: 8px 11px;
  }

  .site-nav__links--mobile .site-nav__mega-grid {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 8px;
  }

  .site-nav__links--mobile .site-nav__mega-group {
    padding: 7px 4px;
  }

  .site-nav__links--mobile .site-nav__mega-group h2 {
    margin-bottom: 5px;
  }

  .site-nav__links--mobile .site-nav__mega-group ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav__links--mobile .site-nav__tool-link {
    min-height: 48px;
    padding: 6px;
    background: var(--paper);
  }

  .site-nav__links--mobile .site-nav__tool-icon {
    width: 34px;
    height: 34px;
  }

  .site-nav__links--mobile .site-nav__tool-copy small,
  .site-nav__links--mobile .site-nav__tool-arrow {
    display: none;
  }

  .site-nav__links--mobile .site-nav__tool-copy strong {
    font-size: .74rem;
  }

  .site-nav__backdrop {
    display: block;
    position: fixed;
    inset: 0;
    top: 56px;
    background: rgba(20, 22, 31, .45);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
    z-index: 90;
  }

  body.bison-nav-open .site-nav__backdrop {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (prefers-color-scheme: dark) {
  .site-nav__mega {
    box-shadow: 0 24px 60px rgba(0, 0, 0, .52);
  }

  body.bison-nav-open .site-nav__panel {
    box-shadow: 0 16px 28px rgba(0, 0, 0, .45);
  }
}

@media (max-width: 430px) {
  .site-nav__links--mobile .site-nav__mega-group ul {
    grid-template-columns: 1fr;
  }
}