/* ═══════════════════════════════════════════════════════════
   navigation.css — WebKreasiAdhi V3
   Sticky navbar · Mega menu · Mobile menu · Glassmorphism
   ═══════════════════════════════════════════════════════════ */

/* ───────────────────────────────────────────────────────────
   1. SITE HEADER WRAPPER
─────────────────────────────────────────────────────────── */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
}


/* ───────────────────────────────────────────────────────────
   2. MAIN NAV
─────────────────────────────────────────────────────────── */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  padding-inline: clamp(var(--space-4), 5vw, var(--space-12));
  background: var(--nav-bg-top);
  -webkit-backdrop-filter: var(--glass-blur);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--nav-border);
  transition:
    height var(--transition-normal),
    background var(--transition-normal),
    box-shadow var(--transition-normal),
    border-color var(--transition-normal);
  gap: var(--space-8);
}

/* Scrolled state — added by app.js on scroll */
.nav.is-scrolled {
  height: var(--nav-height-scroll);
  background: var(--nav-bg-scrolled);
  -webkit-backdrop-filter: var(--glass-blur-heavy);
  backdrop-filter: var(--glass-blur-heavy);
  box-shadow: var(--shadow-nav);
  border-color: rgba(37, 99, 235, 0.12);
}


/* ───────────────────────────────────────────────────────────
   3. BRAND / LOGO
─────────────────────────────────────────────────────────── */
.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
  color: var(--slate-900);
  transition: opacity var(--transition-fast);
}

.nav__brand:hover {
  opacity: 0.85;
  color: var(--slate-900);
}

.nav__brand-logo {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--blue-600), var(--cyan-500));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.nav__brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav__brand-name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -0.03em;
  line-height: 1;
}

.nav__brand-name .brand-highlight {
  color: var(--blue-600);
}


/* ───────────────────────────────────────────────────────────
   4. DESKTOP MENU
─────────────────────────────────────────────────────────── */
.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  justify-content: center;
}

/* ─── Menu Item ─── */
.nav__item {
  position: relative;
}

.nav__link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--slate-700);
  text-decoration: none;
  border-radius: var(--radius-md);
  white-space: nowrap;
  transition:
    color var(--transition-fast),
    background var(--transition-fast);
  line-height: 1;
  cursor: pointer;
  background: none;
  border: none;
  font-size: var(--text-sm);
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--blue-600);
  background: var(--blue-50);
}

.nav__link.is-open {
  color: var(--blue-600);
  background: var(--blue-50);
}

/* Chevron icon */
.nav__chevron {
  width: 14px;
  height: 14px;
  color: var(--slate-400);
  transition: transform var(--transition-normal), color var(--transition-fast);
  flex-shrink: 0;
}

.nav__link:hover .nav__chevron,
.nav__link.is-open .nav__chevron {
  color: var(--blue-500);
}

.nav__link.is-open .nav__chevron {
  transform: rotate(180deg);
}

/* Active indicator dot */
.nav__link.is-active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--blue-600);
}


/* ───────────────────────────────────────────────────────────
   5. NAV ACTIONS (CTA + Hamburger)
─────────────────────────────────────────────────────────── */
.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Hamburger — hidden on desktop */
.nav__hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--blue-50);
  border: 1.5px solid var(--blue-100);
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast);
  padding: 0;
}

.nav__hamburger:hover {
  background: var(--blue-100);
  border-color: var(--blue-200);
}

.nav__hamburger[aria-expanded="true"] {
  background: var(--blue-100);
  border-color: var(--blue-300);
}

.hamburger__line {
  display: block;
  width: 18px;
  height: 1.5px;
  background: var(--slate-700);
  border-radius: 2px;
  transition:
    transform var(--transition-normal),
    opacity var(--transition-normal),
    width var(--transition-normal);
  transform-origin: center;
}

/* Hamburger → X animation */
.nav__hamburger[aria-expanded="true"] .hamburger__line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav__hamburger[aria-expanded="true"] .hamburger__line:nth-child(2) {
  opacity: 0;
  width: 0;
}
.nav__hamburger[aria-expanded="true"] .hamburger__line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}


/* ───────────────────────────────────────────────────────────
   6. MEGA MENU PANEL
─────────────────────────────────────────────────────────── */
.megamenu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px) scale(0.98);
  min-width: 480px;
  background: var(--glass-bg-heavy);
  -webkit-backdrop-filter: var(--glass-blur-heavy);
  backdrop-filter: var(--glass-blur-heavy);
  border: 1px solid var(--glass-border-alt);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-megamenu);
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out),
    visibility var(--duration-normal);
  z-index: var(--z-dropdown);
}

/* Open state */
.megamenu.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0) scale(1);
}

/* Invisible pointer bridge (prevents menu closing when moving cursor) */
.megamenu::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 0;
  right: 0;
  height: 14px;
  background: transparent;
}

/* Top accent line */
.megamenu::after {
  content: '';
  position: absolute;
  top: 0;
  left: var(--space-6);
  right: var(--space-6);
  height: 2px;
  background: linear-gradient(90deg, var(--blue-600), var(--cyan-500));
  border-radius: 0 0 var(--radius-pill) var(--radius-pill);
}

/* ─── Mega Menu Group ─── */
.megamenu__group-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  font-family: var(--font-heading);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--slate-400);
  padding: var(--space-2) var(--space-3) var(--space-3);
  margin-bottom: var(--space-1);
}

.megamenu__group-title svg {
  width: 12px;
  height: 12px;
}

/* ─── Item Grid ─── */
.megamenu__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-1);
}

.megamenu__grid--single {
  grid-template-columns: 1fr;
}

/* ─── Menu Item ─── */
.megamenu__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: 10px 12px;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: inherit;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast);
  border: 1px solid transparent;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.megamenu__item:hover {
  background: var(--blue-50);
  border-color: var(--blue-100);
}

.megamenu__item:hover .megamenu__item-title {
  color: var(--blue-700);
}

/* Left border accent on hover */
.megamenu__item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10%;
  bottom: 10%;
  width: 2.5px;
  border-radius: var(--radius-pill);
  background: var(--blue-600);
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.megamenu__item:hover::before {
  transform: scaleY(1);
}

/* Item icon */
.megamenu__item-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--blue-100);
  border: 1px solid var(--blue-200);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.megamenu__item:hover .megamenu__item-icon {
  background: var(--blue-600);
  border-color: var(--blue-600);
}

.megamenu__item-icon svg {
  width: 16px;
  height: 16px;
  color: var(--blue-600);
  transition: color var(--transition-fast);
}

.megamenu__item:hover .megamenu__item-icon svg {
  color: white;
}

/* Item text */
.megamenu__item-content {
  flex: 1;
  min-width: 0;
}

.megamenu__item-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: 2px;
}

.megamenu__item-title {
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--slate-800);
  line-height: 1.3;
  transition: color var(--transition-fast);
}

.megamenu__item-desc {
  font-size: 12px;
  color: var(--slate-500);
  line-height: 1.5;
}

/* ─── Mega Menu Footer ─── */
.megamenu__footer {
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--blue-50);
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.megamenu__footer-text {
  font-size: var(--text-xs);
  color: var(--slate-500);
}

.megamenu__footer-cta {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--blue-600);
  text-decoration: none;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  transition: gap var(--transition-fast), color var(--transition-fast);
}

.megamenu__footer-cta:hover {
  color: var(--blue-700);
  gap: var(--space-2);
}


/* ───────────────────────────────────────────────────────────
   7. MOBILE MENU PANEL
─────────────────────────────────────────────────────────── */
.mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--slate-200);
  box-shadow: var(--shadow-xl);
  max-height: calc(100vh - var(--nav-height));
  overflow-y: auto;
  overscroll-behavior: contain;

  /* Animation */
  transform: translateY(-8px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    transform var(--duration-slow) var(--ease-out),
    opacity var(--duration-slow) var(--ease-out),
    visibility var(--duration-slow);
  z-index: var(--z-mobile);
}

.mobile-menu.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.mobile-menu__inner {
  padding: var(--space-4) var(--space-4) var(--space-6);
}

/* ─── Mobile Menu List ─── */
.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* ─── Mobile Item ─── */
.mobile-item {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.mobile-item__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 16px;
  font-family: var(--font-heading);
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--slate-800);
  background: none;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  transition:
    background var(--transition-fast),
    color var(--transition-fast);
  touch-action: manipulation;
  min-height: 48px;
}

.mobile-item__trigger:hover,
.mobile-item__trigger:active {
  background: var(--blue-50);
  color: var(--blue-700);
}

.mobile-item__trigger.is-open {
  background: var(--blue-50);
  color: var(--blue-700);
}

.mobile-item__chevron {
  width: 18px;
  height: 18px;
  color: var(--slate-400);
  flex-shrink: 0;
  transition: transform var(--transition-normal), color var(--transition-fast);
}

.mobile-item__trigger.is-open .mobile-item__chevron {
  transform: rotate(180deg);
  color: var(--blue-500);
}

/* ─── Accordion Sub-menu ─── */
.mobile-item__sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--duration-slow) var(--ease-out);
}

.mobile-item__sub.is-open {
  max-height: 500px;
}

.mobile-item__sub-inner {
  padding: var(--space-1) var(--space-2) var(--space-2);
  border-left: 2px solid var(--blue-100);
  margin: 0 var(--space-4) var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-subitem {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: var(--slate-600);
  font-size: var(--text-sm);
  font-weight: 500;
  transition:
    background var(--transition-fast),
    color var(--transition-fast);
  touch-action: manipulation;
  min-height: 44px;
}

.mobile-subitem:hover,
.mobile-subitem:active {
  background: var(--blue-50);
  color: var(--blue-700);
}

.mobile-subitem__icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-xs);
  background: var(--blue-100);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mobile-subitem__icon svg {
  width: 14px;
  height: 14px;
  color: var(--blue-600);
}

.mobile-subitem__badge {
  margin-left: auto;
  font-size: 10px;
  padding: 2px 7px;
  background: var(--blue-100);
  color: var(--blue-700);
  border-radius: var(--radius-pill);
  font-weight: 600;
  flex-shrink: 0;
}

/* ─── Mobile Footer ─── */
.mobile-menu__footer {
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--slate-100);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.mobile-menu__cta {
  width: 100%;
}

.mobile-menu__contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--slate-50);
  border-radius: var(--radius-md);
  border: 1px solid var(--slate-100);
}

.mobile-menu__contact-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--slate-600);
}

.mobile-menu__contact-row svg {
  width: 14px;
  height: 14px;
  color: var(--blue-500);
  flex-shrink: 0;
}

/* ─── Mobile Backdrop ─── */
.mobile-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.15);
  backdrop-filter: blur(2px);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity var(--duration-slow) var(--ease-out),
    visibility var(--duration-slow);
  z-index: calc(var(--z-mobile) - 1);
  pointer-events: none;
}

.mobile-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Body scroll lock */
body.menu-open {
  overflow: hidden;
}


/* ───────────────────────────────────────────────────────────
   8. RESPONSIVE — Show/hide nav elements
─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav__menu {
    display: none;
  }

  #nav-cta {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav {
    padding-inline: var(--space-4);
  }
}

@media (min-width: 769px) {
  .mobile-menu,
  .mobile-backdrop {
    display: none !important;
  }
}

/* Tablet adjustments */
@media (max-width: 1024px) and (min-width: 769px) {
  .nav__link {
    padding: 8px 10px;
    font-size: 13px;
  }

  .nav {
    gap: var(--space-4);
    padding-inline: var(--space-6);
  }
}