/* =============================================================
   TransRisk v3 — nav.css
   Complete navigation component — shell, dropdowns, mega-menu,
   mobile overlay, scroll behaviour, accessibility.
============================================================= */


/* ═══════════════════════════════════════════════════════════
   NAV SHELL
═══════════════════════════════════════════════════════════ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  /* Starts semi-transparent — pages begin with dark hero */
  background: rgba(15, 31, 46, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.28s ease,
              border-color 0.28s ease,
              box-shadow 0.28s ease,
              transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Solid after scrolling */
.site-nav.nav--scrolled {
  background: var(--color-navy);
  border-color: rgba(255, 255, 255, 0.07);
  box-shadow: 0 2px 0 rgba(255, 255, 255, 0.04),
              0 8px 28px rgba(0, 0, 0, 0.30);
}

/* nav--hidden kept for reference but no longer applied by JS */

/* Inner flex row */
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 28px;
  height: var(--nav-h);   /* 68px */
  display: flex;
  align-items: center;
  gap: 0;
  position: relative;     /* anchor for mega-menu absolute positioning */
}


/* ── Logo ─────────────────────────────────────────────────── */

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 28px;
  outline-offset: 4px;
}

.nav-logo:focus-visible {
  outline: 2px solid var(--color-green);
  border-radius: var(--radius-md);
}

.nav-logo-mark {
  width: 34px;
  height: 34px;
  background: var(--color-green);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11.5px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.04em;
  flex-shrink: 0;
}

.nav-logo-name {
  font-size: 1.0625rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: -0.015em;
}

.nav-logo-name strong {
  font-weight: 800;
  color: #fff;
}


/* ── Primary nav list ─────────────────────────────────────── */

.nav-primary {
  flex: 1;
  min-width: 0;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
}

/* ── Hover bridge ────────────────────────────────────────────
   Fills the 6 px visual gap between the nav-item bottom edge and
   the dropdown top edge.  While the mouse crosses that gap it is
   over this pseudo-element, which is a descendant of the li, so
   mouseleave never fires on the li and the dropdown stays open.
   Only rendered while the dropdown is open (.is-open).
─────────────────────────────────────────────────────────────── */
.nav-item--has-dropdown.is-open::after {
  content: '';
  position: absolute;
  top: 100%;
  /* extend generously left/right so diagonal moves to a wide
     mega-menu corner don't clip the gap detection area */
  left:  -32px;
  right: -32px;
  height: 12px;   /* a bit more than the 6 px gap */
  z-index: 299;   /* just below dropdown (300), above page content */
}

/* Shared styles for <a> and <button> nav links */
.nav-link,
.nav-link--btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 13px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.72);
  background: none;
  border: none;
  cursor: pointer;
  text-decoration: none;
  border-radius: 7px;
  white-space: nowrap;
  line-height: 1;
  transition: color 0.15s ease, background 0.15s ease;
  font-family: inherit;
}

.nav-link:hover,
.nav-link--btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link:focus-visible,
.nav-link--btn:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}

/* Active top-level link — green text */
.nav-link.active,
.nav-link--btn.active {
  color: var(--color-green-light);
}

/* Dropdown chevron */
.nav-chevron {
  width: 13px;
  height: 13px;
  opacity: 0.55;
  flex-shrink: 0;
  transition: transform 0.2s ease, opacity 0.15s ease;
}

.nav-item--has-dropdown.is-open > .nav-link--btn .nav-chevron {
  transform: rotate(180deg);
  opacity: 0.9;
}


/* ── CTA button area ──────────────────────────────────────── */

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 20px;
  flex-shrink: 0;
}


/* ── Hamburger ────────────────────────────────────────────── */

.nav-hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 4px;
  background: none;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: background 0.15s;
  margin-left: 12px;
  flex-shrink: 0;
}

.nav-hamburger:hover {
  background: rgba(255, 255, 255, 0.08);
}

.nav-hamburger:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255, 255, 255, 0.82);
  border-radius: 2px;
  transform-origin: center;
  transition: transform 0.25s ease, opacity 0.18s ease, width 0.18s ease;
}

.nav-hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; width: 0; }
.nav-hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ═══════════════════════════════════════════════════════════
   DROPDOWN BASE
═══════════════════════════════════════════════════════════ */

.nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05),
              0 20px 48px -8px rgba(0,0,0,0.13);
  padding: 6px;
  min-width: 280px;
  z-index: 300;
  /* Closed state */
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
  transition: opacity 0.18s ease,
              visibility 0.18s ease,
              transform 0.18s ease;
}

/* Open state */
.nav-item--has-dropdown.is-open > .nav-dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

/* Small arrow pointing up */
.nav-dropdown::before {
  content: '';
  position: absolute;
  top: -5px;
  left: 20px;
  width: 10px;
  height: 10px;
  background: #fff;
  border-top: 1px solid #e5e7eb;
  border-left: 1px solid #e5e7eb;
  transform: rotate(45deg);
  border-radius: 2px 0 0 0;
}


/* ── Standard dropdown items (dd-item) ───────────────────── */

.dd-item {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 9px 10px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.12s;
  color: inherit;
}

.dd-item:hover {
  background: rgba(45, 122, 58, 0.05);
}

.dd-item:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: -2px;
  border-radius: 8px;
}

.dd-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 7px;
  color: #374151;
  flex-shrink: 0;
}

.dd-icon svg {
  width: 15px;
  height: 15px;
}

.dd-item:hover .dd-icon {
  background: rgba(45, 122, 58, 0.08);
  border-color: rgba(45, 122, 58, 0.18);
  color: var(--color-green);
}

.dd-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.dd-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 6px;
}

.dd-desc {
  font-size: 0.75rem;
  color: var(--color-muted);
  line-height: 1.4;
}

/* "View all" footer item */
.dd-item--view-all {
  margin-top: 4px;
  padding-top: 9px;
  border-top: 1px solid #f3f4f6;
}

.dd-item--view-all .dd-title {
  color: var(--color-green-dark);
}

.dd-item--view-all:hover {
  background: rgba(45, 122, 58, 0.06);
}

/* Dropdown section label */
.dd-section-label {
  padding: 6px 10px 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9ca3af;
}


/* ═══════════════════════════════════════════════════════════
   MEGA MENU (Product)
═══════════════════════════════════════════════════════════ */

.nav-dropdown--mega {
  /* Wider card, centered under the Product link */
  width: 700px;
  min-width: 0;
  /* Remove small-arrow override — center arrow */
  padding: 16px;
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  /* Prevent viewport overflow */
  max-width: calc(100vw - 48px);
}

.nav-dropdown--mega::before {
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
}

/* Open state overrides transform */
.nav-item--has-dropdown.is-open > .nav-dropdown--mega {
  transform: translateX(-50%) translateY(0);
}

/* Mega header */
.mega-header {
  padding: 2px 8px 12px;
  border-bottom: 1px solid #f3f4f6;
  margin-bottom: 10px;
}

.mega-header-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #9ca3af;
}

/* 2-column grid */
.mega-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

/* Individual mega item */
.mega-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  text-decoration: none;
  transition: background 0.12s;
  color: inherit;
}

.mega-item:hover {
  background: rgba(45, 122, 58, 0.05);
}

.mega-item:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: -2px;
  border-radius: 8px;
}

.mega-icon {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(45, 122, 58, 0.08);
  border: 1px solid rgba(45, 122, 58, 0.15);
  border-radius: 7px;
  color: var(--color-green);
  flex-shrink: 0;
  transition: background 0.12s, border-color 0.12s;
}

.mega-icon svg {
  width: 14px;
  height: 14px;
}

.mega-item:hover .mega-icon {
  background: rgba(45, 122, 58, 0.13);
  border-color: rgba(45, 122, 58, 0.25);
}

.mega-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.mega-title-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.mega-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.25;
}

.mega-desc {
  font-size: 0.72rem;
  color: #6b7280;
  line-height: 1.45;
}

/* NEW badge */
.nav-badge-new {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1px 5px;
  border-radius: 100px;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(45, 122, 58, 0.10);
  color: var(--color-green-dark);
  border: 1px solid rgba(45, 122, 58, 0.22);
  line-height: 1.5;
  flex-shrink: 0;
}

/* Mega footer — "View full product overview" link */
.mega-footer {
  padding-top: 12px;
  margin-top: 8px;
  border-top: 1px solid #f3f4f6;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mega-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-green-dark);
  text-decoration: none;
  padding: 5px 8px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.mega-footer-link svg {
  width: 14px;
  height: 14px;
}

.mega-footer-link:hover {
  color: var(--color-green);
  background: rgba(45, 122, 58, 0.06);
}

.mega-footer-link:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}


/* ═══════════════════════════════════════════════════════════
   MOBILE OVERLAY
═══════════════════════════════════════════════════════════ */

.nav-mobile {
  display: none;  /* shown only via media query below */
  position: fixed;
  inset: 0;
  z-index: 400;
  background: var(--color-navy);
  flex-direction: column;
  overflow: hidden;
  /* Slide in from right */
  transform: translateX(100%);
  transition: transform 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-mobile.is-open {
  transform: translateX(0);
}

/* Mobile header bar */
.nav-mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: var(--nav-h);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

/* Close button */
.nav-mobile-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.65);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.nav-mobile-close:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.nav-mobile-close:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: 2px;
}

.nav-mobile-close svg { width: 20px; height: 20px; }

/* Scrollable nav body */
.nav-mobile-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 8px 0 20px;
}

.nav-mobile-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

/* Mobile link row (a or button) */
.nav-mobile-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.78);
  background: none;
  border: none;
  text-decoration: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: color 0.12s, background 0.12s;
  -webkit-tap-highlight-color: transparent;
}

.nav-mobile-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

.nav-mobile-link:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: -3px;
}

.nav-mobile-link.active {
  color: var(--color-green-light);
}

/* Accordion chevron */
.nav-mobile-chevron {
  width: 16px;
  height: 16px;
  opacity: 0.45;
  flex-shrink: 0;
  transition: transform 0.2s ease, opacity 0.15s;
}

.nav-mobile-trigger[aria-expanded="true"] .nav-mobile-chevron {
  transform: rotate(180deg);
  opacity: 0.9;
}

/* Sub-menu drawer */
.nav-mobile-sub {
  background: rgba(255, 255, 255, 0.025);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 4px 0;
}

.nav-mobile-sub[hidden] { display: none; }

/* Sub-menu items */
.nav-mobile-sub-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 24px 10px 28px;
  font-size: 0.9375rem;
  color: rgba(255, 255, 255, 0.60);
  text-decoration: none;
  transition: color 0.12s, background 0.12s;
  -webkit-tap-highlight-color: transparent;
}

.nav-mobile-sub-link:hover {
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.04);
}

.nav-mobile-sub-link:focus-visible {
  outline: 2px solid var(--color-green);
  outline-offset: -2px;
}

.nav-mobile-sub-icon {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 6px;
  flex-shrink: 0;
}

.nav-mobile-sub-icon svg {
  width: 13px;
  height: 13px;
  color: rgba(255, 255, 255, 0.50);
}

.nav-mobile-sub-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: inherit;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-mobile-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.06);
  margin: 6px 24px;
}

/* Pinned CTA footer */
.nav-mobile-footer {
  flex-shrink: 0;
  padding: 16px 20px 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-mobile-footer .btn-primary {
  width: 100%;
  justify-content: center;
}


/* ═══════════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
═══════════════════════════════════════════════════════════ */

/* Tablet and below → hamburger, hide desktop nav */
@media (max-width: 1024px) {
  .nav-primary  { display: none; }
  .nav-actions  { display: none; }
  .nav-hamburger { display: flex; }
  .nav-mobile   { display: flex; }

  .nav-logo { margin-right: 0; }
  .nav-inner { justify-content: space-between; }
}

/* Desktop → always show desktop nav, never show mobile */
@media (min-width: 1025px) {
  .nav-hamburger { display: none !important; }
  .nav-mobile    { display: none !important; }
}

/* On very large screens, keep mega-menu from over-extending */
@media (min-width: 1400px) {
  .nav-dropdown--mega { width: 720px; }
}

/* Tighten up nav on mid-range desktops */
@media (max-width: 1200px) {
  .nav-inner { padding: 0 20px; }
  .nav-logo  { margin-right: 16px; }

  .nav-link,
  .nav-link--btn { padding: 7px 10px; font-size: 0.875rem; }

  .nav-dropdown--mega { width: min(680px, calc(100vw - 40px)); }
}