/* =========================================================================
   Geetanjali — Site navigation (top bar, sticky header, account menu, drawer)
   Markup: includes/navbar.php · Behaviour: js/script.js ("Site navigation")
   ========================================================================= */

:root {
  --gn-navy: #0a2342;
  --gn-navy-soft: #1c3b66;
  --gn-gold: #c9a46b;
  --gn-gold-deep: #a07a3c;
  --gn-gold-ink: #6e5122;
  --gn-ink: #172033;
  --gn-muted: #5d6677;
  --gn-line: rgba(10, 35, 66, 0.1);
  --gn-line-strong: rgba(10, 35, 66, 0.18);
  --gn-cream: #faf6ee;
  --gn-cream-deep: #f3ecdd;
  --gn-surface: #ffffff;
  --gn-danger: #b42318;
  --gn-alert: #e0573f;

  --gn-header-h: 84px;
  --gn-radius-pill: 999px;
  --gn-radius-md: 12px;
  --gn-radius-lg: 18px;
  --gn-shadow-menu: 0 28px 56px -18px rgba(10, 35, 66, 0.32), 0 6px 16px -6px rgba(10, 35, 66, 0.12);
  --gn-shadow-header: 0 10px 30px -18px rgba(10, 35, 66, 0.35);
  --gn-ring: 0 0 0 3px rgba(201, 164, 107, 0.5);

  --gn-ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --gn-fast: 160ms;
  --gn-normal: 320ms;
}

/* Pages may restyle body (fonts, colors); keep the navigation consistent everywhere */
.gn-topbar,
.gn-header,
.gn-drawer,
.gn-skip-link {
  font-family: "Lato", var(--body-font, system-ui), -apple-system, "Segoe UI", sans-serif;
  line-height: 1.4;
}

/* ---------- Skip link ---------- */
.gn-skip-link {
  position: absolute;
  left: 16px;
  top: 10px;
  z-index: 2000;
  padding: 10px 16px;
  border-radius: var(--gn-radius-md);
  background: var(--gn-navy);
  color: #fff;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform var(--gn-fast) ease;
}
.gn-skip-link:focus {
  transform: translateY(0);
  outline: none;
  box-shadow: var(--gn-ring);
}

/* ---------- Institutional top bar ---------- */
.gn-topbar {
  background: var(--gn-cream);
  border-bottom: 1px solid var(--gn-line);
  font-size: 0.78rem;
  color: var(--gn-muted);
}
.gn-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 38px;
}
.gn-topbar__inst {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  color: var(--gn-muted);
  text-decoration: none;
  transition: color var(--gn-fast) ease;
}
.gn-topbar__inst:hover { color: var(--gn-navy); }
.gn-topbar__logo { height: 22px; width: auto; flex: none; }
.gn-topbar__full { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gn-topbar__note {
  flex: none;
  color: var(--gn-gold-ink);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.gn-topbar__note i { color: var(--gn-gold); margin-right: 4px; }

/* ---------- Sticky header ---------- */
.gn-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: transform var(--gn-normal) var(--gn-ease-out), box-shadow var(--gn-normal) ease,
    border-color var(--gn-normal) ease, background-color var(--gn-normal) ease;
}
.gn-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--gn-line);
  box-shadow: var(--gn-shadow-header);
}
.gn-header.is-hidden { transform: translateY(-100%); }

.gn-header__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: var(--gn-header-h);
}

/* ---------- Brand ---------- */
.gn-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  text-decoration: none;
  color: var(--gn-navy);
}
.gn-brand__mark {
  display: block;
  height: 64px;
  width: auto;
  transform-origin: left center;
  transition: transform var(--gn-normal) var(--gn-ease-out);
}
.gn-header.is-scrolled .gn-brand__mark { transform: scale(0.86); }
.gn-brand:focus-visible { outline: none; box-shadow: var(--gn-ring); border-radius: var(--gn-radius-md); }

/* ---------- Primary navigation (desktop) ---------- */
.gn-nav { margin-left: auto; }
.gn-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.gn-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 42px;
  padding: 0 14px;
  border-radius: var(--gn-radius-pill);
  font-size: 0.93rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: rgba(10, 35, 66, 0.78);
  text-decoration: none;
  transition: color var(--gn-fast) ease, background-color var(--gn-fast) ease;
}
.gn-nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 18px;
  height: 2px;
  margin-left: -9px;
  border-radius: 2px;
  background: var(--gn-gold);
  transform: scaleX(0);
  transition: transform var(--gn-normal) var(--gn-ease-out);
}
.gn-nav__link:hover { color: var(--gn-navy); background: var(--gn-cream); }
.gn-nav__link:hover::after { transform: scaleX(0.6); }
.gn-nav__link.is-active { color: var(--gn-navy); }
.gn-nav__link.is-active::after { transform: scaleX(1); }
.gn-nav__link:focus-visible { outline: none; box-shadow: var(--gn-ring); }

/* ---------- Header actions ---------- */
.gn-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.gn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 20px;
  border-radius: var(--gn-radius-pill);
  border: 1.5px solid transparent;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--gn-fast) ease, box-shadow var(--gn-fast) ease,
    background-color var(--gn-fast) ease, border-color var(--gn-fast) ease, color var(--gn-fast) ease;
}
.gn-btn:focus-visible { outline: none; box-shadow: var(--gn-ring); }
.gn-btn:active { transform: translateY(1px); }

.gn-btn--ghost {
  color: var(--gn-navy);
  border-color: var(--gn-line-strong);
  background: transparent;
}
.gn-btn--ghost:hover,
.gn-btn--ghost.is-active {
  border-color: var(--gn-gold);
  background: var(--gn-cream);
  color: var(--gn-navy);
}

.gn-btn--gold {
  color: var(--gn-navy);
  background: linear-gradient(135deg, #dcbf8a 0%, var(--gn-gold) 55%, #b88f50 100%);
  box-shadow: 0 6px 16px -8px rgba(160, 122, 60, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.gn-btn--gold:hover {
  color: var(--gn-navy);
  transform: translateY(-1px);
  box-shadow: 0 12px 22px -10px rgba(160, 122, 60, 0.75), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.gn-btn--block { width: 100%; height: 48px; }
.gn-btn--danger { color: var(--gn-danger); border-color: rgba(180, 35, 24, 0.25); }
.gn-btn--danger:hover { color: var(--gn-danger); border-color: var(--gn-danger); background: #fdf1ef; }

/* ---------- Avatar, badges, counters ---------- */
.gn-avatar {
  position: relative;
  display: inline-grid;
  place-items: center;
  flex: none;
  overflow: hidden;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--gn-navy) 0%, var(--gn-navy-soft) 100%);
  color: #f3dfb8;
  font-family: var(--heading-font, "Playfair Display", Georgia, serif);
  font-weight: 700;
}
.gn-avatar img {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.gn-avatar--sm { width: 32px; height: 32px; font-size: 0.8rem; }
.gn-avatar--md { width: 44px; height: 44px; font-size: 1rem; box-shadow: 0 0 0 3px #fff, 0 0 0 4px var(--gn-gold); }

.gn-badge {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  height: 22px;
  padding: 0 9px;
  border-radius: var(--gn-radius-pill);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(201, 164, 107, 0.18);
  color: var(--gn-gold-ink);
}
.gn-badge--admin,
.gn-badge--super_admin { background: rgba(10, 35, 66, 0.1); color: var(--gn-navy); }

.gn-count {
  margin-left: auto;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: var(--gn-radius-pill);
  display: inline-grid;
  place-items: center;
  background: var(--gn-alert);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
}
.gn-dot {
  position: absolute;
  top: 4px;
  left: 30px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gn-alert);
  box-shadow: 0 0 0 2px #fff;
}

/* ---------- Account menu ---------- */
.gn-user { position: relative; }
.gn-user__toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 14px 0 6px;
  border: 1.5px solid var(--gn-line-strong);
  border-radius: var(--gn-radius-pill);
  background: var(--gn-surface);
  color: var(--gn-navy);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color var(--gn-fast) ease, background-color var(--gn-fast) ease;
}
.gn-user__toggle:hover { background: var(--gn-cream); border-color: var(--gn-gold); }
.gn-user__toggle[aria-expanded="true"] { border-color: var(--gn-gold); background: var(--gn-cream); }
.gn-user__toggle:focus-visible { outline: none; box-shadow: var(--gn-ring); }
.gn-user__name { max-width: 110px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gn-user__chevron { font-size: 0.7rem; color: var(--gn-muted); transition: transform var(--gn-normal) var(--gn-ease-out); }
.gn-user__toggle[aria-expanded="true"] .gn-user__chevron { transform: rotate(180deg); }

.gn-user__menu {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  z-index: 1010;
  width: 290px;
  padding: 8px;
  border-radius: var(--gn-radius-lg);
  border: 1px solid var(--gn-line);
  background: var(--gn-surface);
  box-shadow: var(--gn-shadow-menu);
  opacity: 0;
  transform: translateY(-6px) scale(0.98);
  transform-origin: top right;
  transition: opacity var(--gn-fast) ease, transform var(--gn-normal) var(--gn-ease-out);
}
.gn-user__menu[hidden] { display: none; }
.gn-user__menu.is-open { opacity: 1; transform: translateY(0) scale(1); }

.gn-user__card,
.gn-drawer__user {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px;
  margin-bottom: 6px;
  border-radius: var(--gn-radius-md);
  background: linear-gradient(135deg, var(--gn-cream) 0%, var(--gn-cream-deep) 100%);
}
.gn-user__meta { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.gn-user__fullname {
  font-family: var(--heading-font, "Playfair Display", Georgia, serif);
  font-size: 1.02rem;
  color: var(--gn-navy);
  line-height: 1.2;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.gn-menu__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--gn-ink);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color var(--gn-fast) ease, color var(--gn-fast) ease;
}
.gn-menu__item i { width: 18px; text-align: center; color: var(--gn-muted); transition: color var(--gn-fast) ease; }
.gn-menu__item:hover,
.gn-menu__item:focus-visible { background: var(--gn-cream); color: var(--gn-navy); outline: none; }
.gn-menu__item:hover i,
.gn-menu__item:focus-visible i { color: var(--gn-gold-deep); }
.gn-menu__item.is-active { background: var(--gn-cream); color: var(--gn-navy); }
.gn-menu__item.is-active i { color: var(--gn-gold-deep); }
.gn-menu__item--danger,
.gn-menu__item--danger i { color: var(--gn-danger); }
.gn-menu__item--danger:hover,
.gn-menu__item--danger:focus-visible { background: #fdf1ef; color: var(--gn-danger); }
.gn-menu__item--danger:hover i,
.gn-menu__item--danger:focus-visible i { color: var(--gn-danger); }
.gn-menu__sep { height: 1px; margin: 6px 8px; background: var(--gn-line); }
.gn-menu__label,
.gn-drawer__label {
  display: block;
  padding: 8px 12px 4px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gn-muted);
}

/* ---------- Burger ---------- */
.gn-burger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--gn-radius-md);
  border: 1.5px solid var(--gn-line-strong);
  background: var(--gn-surface);
  cursor: pointer;
  transition: border-color var(--gn-fast) ease, background-color var(--gn-fast) ease;
}
.gn-burger { position: relative; }
.gn-burger:hover { border-color: var(--gn-gold); background: var(--gn-cream); }
.gn-dot--burger { top: 6px; left: auto; right: 6px; }
.gn-burger:focus-visible { outline: none; box-shadow: var(--gn-ring); }
.gn-burger__bars { position: relative; display: block; width: 20px; height: 14px; margin: 0 auto; }
.gn-burger__bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--gn-navy);
  transition: transform var(--gn-normal) var(--gn-ease-out), opacity var(--gn-fast) ease;
}
.gn-burger__bars span:nth-child(1) { top: 0; }
.gn-burger__bars span:nth-child(2) { top: 6px; width: 70%; }
.gn-burger__bars span:nth-child(3) { top: 12px; }
.gn-burger[aria-expanded="true"] .gn-burger__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.gn-burger[aria-expanded="true"] .gn-burger__bars span:nth-child(2) { opacity: 0; }
.gn-burger[aria-expanded="true"] .gn-burger__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Mobile drawer ---------- */
.gn-drawer {
  position: fixed;
  inset: 0;
  z-index: 1100;
  overflow: hidden; /* clip the off-canvas panel so it never adds horizontal scroll */
  visibility: hidden;
  pointer-events: none;
  transition: visibility 0s linear var(--gn-normal);
}
.gn-drawer.is-open {
  visibility: visible;
  pointer-events: auto;
  transition: visibility 0s;
}
.gn-drawer__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 20, 40, 0.5);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity var(--gn-normal) ease;
}
.gn-drawer.is-open .gn-drawer__backdrop { opacity: 1; }
.gn-drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  display: flex;
  flex-direction: column;
  width: min(88vw, 380px);
  height: 100vh;
  height: 100dvh;
  background: var(--gn-surface);
  box-shadow: -24px 0 60px -20px rgba(6, 20, 40, 0.45);
  transform: translateX(100%);
  transition: transform 420ms var(--gn-ease-out);
}
.gn-drawer.is-open .gn-drawer__panel { transform: translateX(0); }

.gn-drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--gn-line);
}
.gn-brand--drawer .gn-brand__mark { height: 52px; }
.gn-drawer__close {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: var(--gn-radius-md);
  border: 1.5px solid var(--gn-line-strong);
  background: var(--gn-surface);
  color: var(--gn-navy);
  font-size: 1.1rem;
  cursor: pointer;
}
.gn-drawer__close:hover { border-color: var(--gn-gold); background: var(--gn-cream); }
.gn-drawer__close:focus-visible { outline: none; box-shadow: var(--gn-ring); }

.gn-drawer__body {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 14px 14px 8px;
}
.gn-drawer__user { margin: 0 0 10px; }
.gn-drawer__list { margin: 0 0 10px; padding: 0; list-style: none; }
.gn-drawer__list li {
  opacity: 0;
  transform: translateX(14px);
  transition: opacity var(--gn-normal) ease, transform var(--gn-normal) var(--gn-ease-out);
  transition-delay: calc(var(--gn-i, 0) * 35ms + 80ms);
}
.gn-drawer.is-open .gn-drawer__list li { opacity: 1; transform: none; }
.gn-drawer__link {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 52px;
  padding: 6px 12px 6px 8px;
  border-radius: var(--gn-radius-md);
  color: var(--gn-ink);
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: background-color var(--gn-fast) ease, color var(--gn-fast) ease;
}
.gn-drawer__link > i:first-child {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 10px;
  background: var(--gn-cream);
  color: var(--gn-gold-deep);
  font-size: 0.95rem;
}
.gn-drawer__arrow {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--gn-gold-deep);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity var(--gn-fast) ease, transform var(--gn-normal) var(--gn-ease-out);
}
.gn-drawer__link:hover,
.gn-drawer__link:focus-visible { background: var(--gn-cream); color: var(--gn-navy); outline: none; }
.gn-drawer__link:hover .gn-drawer__arrow,
.gn-drawer__link:focus-visible .gn-drawer__arrow,
.gn-drawer__link.is-active .gn-drawer__arrow { opacity: 1; transform: none; }
.gn-drawer__link.is-active { background: var(--gn-cream); color: var(--gn-navy); box-shadow: inset 3px 0 0 var(--gn-gold); }
.gn-drawer__link.is-active > i:first-child { background: var(--gn-navy); color: #f3dfb8; }
.gn-drawer__list--compact .gn-drawer__link { min-height: 46px; font-size: 0.95rem; }
.gn-drawer__list--compact .gn-drawer__link > i:first-child { width: 32px; height: 32px; font-size: 0.85rem; }

.gn-drawer__foot {
  display: grid;
  gap: 10px;
  padding: 14px 18px calc(14px + env(safe-area-inset-bottom, 0px));
  border-top: 1px solid var(--gn-line);
  background: linear-gradient(180deg, #fff 0%, var(--gn-cream) 100%);
}
.gn-drawer__inst {
  margin: 4px 0 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--gn-muted);
}

html.gn-lock,
html.gn-lock body { overflow: hidden; }

/* ---------- Responsive ---------- */
@media (max-width: 1199px) {
  .gn-header__inner { gap: 16px; }
  .gn-nav__link { padding: 0 11px; font-size: 0.9rem; }
  .gn-brand__mark { height: 58px; }
  .gn-btn { padding: 0 16px; }
  .gn-hide-compact { display: none; }
}

@media (max-width: 991px) {
  :root { --gn-header-h: 70px; }
  .gn-brand__mark { height: 52px; }
  .gn-nav { display: none; }
  .gn-burger { display: inline-block; }
  .gn-actions { margin-left: auto; }
  .gn-user__name,
  .gn-user__chevron { display: none; }
  .gn-user__toggle { padding: 0 5px; height: 44px; }
  .gn-dot { left: 30px; top: 5px; }
}

@media (max-width: 767px) {
  .gn-topbar__full { display: none; }
  .gn-topbar__inner { min-height: 34px; }
  .gn-topbar__note { font-size: 0.72rem; }
}

@media (max-width: 639px) {
  .gn-hide-sm,
  .gn-user { display: none; }
  .gn-brand__mark { height: 50px; }
}

@media (min-width: 992px) {
  .gn-drawer { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .gn-header,
  .gn-header *,
  .gn-drawer,
  .gn-drawer *,
  .gn-user__menu,
  .gn-skip-link {
    transition-duration: 1ms !important;
    transition-delay: 0ms !important;
    animation: none !important;
  }
  .gn-header.is-hidden { transform: none; }
}

@media print {
  .gn-topbar,
  .gn-header,
  .gn-drawer,
  .gn-skip-link { display: none !important; }
}