/*
 * iSmart Parenting Hub — navigation presentation.
 *
 * This file intentionally owns navigation-specific visual polish. Core theme
 * styles remain in style.css and defensive layout rules remain in stability.css.
 */

@media (min-width: 961px) {
  .site-header {
    background: rgba(255, 255, 255, .96);
    border-bottom-color: rgba(68, 68, 68, .08);
    box-shadow: 0 8px 28px rgba(68, 68, 68, .055);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    backdrop-filter: blur(14px) saturate(140%);
  }

  .header-inner {
    min-height: 84px;
    gap: clamp(16px, 2vw, 28px);
  }

  .custom-logo {
    max-height: 58px;
  }

  .primary-navigation {
    margin-left: auto;
  }

  .primary-menu {
    gap: 3px;
  }

  .primary-menu > .menu-item {
    position: relative;
  }

  .primary-menu > .menu-item > a,
  .nav-item-row > a {
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid transparent;
    border-radius: 10px;
    color: var(--isp-ink);
    font-size: .88rem;
    font-weight: 750;
    letter-spacing: -.012em;
    text-transform: none;
    transition: background-color .16s ease, border-color .16s ease, color .16s ease, box-shadow .16s ease;
  }

  .primary-menu > .menu-item > a:hover,
  .primary-menu > .menu-item > a:focus-visible,
  .nav-item-row > a:hover,
  .nav-item-row > a:focus-visible {
    color: var(--isp-ink);
    background: rgba(181, 222, 242, .22);
    border-color: rgba(115, 192, 238, .16);
  }

  .nav-item-row {
    min-height: 44px;
    align-items: center;
    border: 1px solid transparent;
    border-radius: 10px;
    transition: background-color .16s ease, border-color .16s ease, box-shadow .16s ease;
  }

  .nav-item-row > a {
    border: 0;
    border-radius: 10px 0 0 10px;
    padding-right: 10px;
  }

  .nav-item-row:hover,
  .menu-item-has-mega.is-desktop-open > .nav-item-row,
  .menu-item-has-mega:focus-within > .nav-item-row {
    background: rgba(181, 222, 242, .22);
    border-color: rgba(115, 192, 238, .16);
  }

  .nav-item-row:hover > a,
  .menu-item-has-mega.is-desktop-open > .nav-item-row > a,
  .menu-item-has-mega:focus-within > .nav-item-row > a {
    background: transparent;
  }

  .primary-menu > .menu-item.current-menu-item > a,
  .primary-menu > .menu-item.current-menu-ancestor > .nav-item-row {
    color: var(--isp-ink);
    background: rgba(181, 222, 242, .42);
    border-color: rgba(115, 192, 238, .28);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .5);
  }

  .primary-menu > .menu-item.current-menu-ancestor .nav-item-row > a {
    background: transparent;
  }

  .submenu-toggle {
    width: 30px;
    height: 42px;
    margin-left: -8px;
    margin-right: 3px;
    border-radius: 8px;
    color: #676466;
    transition: background-color .16s ease, color .16s ease;
  }

  .submenu-toggle:hover,
  .submenu-toggle:focus-visible,
  .menu-item-has-mega.is-desktop-open .submenu-toggle,
  .menu-item-has-mega:focus-within .submenu-toggle,
  .menu-item-has-mega:hover .submenu-toggle {
    color: var(--isp-ink);
    background: transparent;
  }

  .submenu-toggle svg {
    width: 14px;
    height: 14px;
    transition: transform .18s ease;
  }

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

  /*
   * Desktop dropdown cards align to their parent item. JavaScript supplies the
   * clamped viewport-safe left and top positions through custom properties.
   */
  .mega-menu,
  .mega-menu--compact {
    position: fixed;
    left: var(--mega-left, 16px);
    top: var(--mega-top, 84px);
    z-index: 1001;
    width: var(--mega-width, min(820px, calc(100vw - 40px)));
    padding-top: 10px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px) scale(.985);
    transform-origin: var(--mega-origin, top left);
    transition: opacity .22s ease, transform .22s cubic-bezier(.2, .75, .25, 1), visibility .22s ease;
  }

  .mega-menu--compact {
    width: var(--mega-width, min(420px, calc(100vw - 40px)));
  }

  .menu-item-has-mega:hover > .mega-menu,
  .menu-item-has-mega:focus-within > .mega-menu,
  .menu-item-has-mega:hover > .mega-menu--compact,
  .menu-item-has-mega:focus-within > .mega-menu--compact {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px) scale(.985);
  }

  .menu-item-has-mega.is-desktop-open > .mega-menu,
  .menu-item-has-mega.is-desktop-open > .mega-menu--compact {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0) scale(1);
  }

  .mega-menu__inner,
  .mega-menu--compact .mega-menu__inner {
    position: relative;
    overflow: hidden;
    padding: 20px 20px 18px;
    border: 1px solid rgba(68, 68, 68, .10);
    border-radius: 22px;
    background: rgba(255, 255, 255, .99);
    box-shadow: 0 24px 56px rgba(44, 61, 70, .18), 0 4px 14px rgba(68, 68, 68, .05);
  }

  .mega-menu__inner::before {
    inset: 0 0 auto;
    width: auto;
    height: 3px;
    background: linear-gradient(90deg, var(--isp-primary), var(--isp-secondary), var(--isp-accent));
  }

  .mega-menu__eyebrow {
    display: flex;
    align-items: center;
    gap: 9px;
    margin: 3px 0 14px;
    color: var(--isp-ink);
    font-size: .76rem;
    font-weight: 850;
    letter-spacing: .09em;
    line-height: 1.3;
    text-transform: uppercase;
  }

  .mega-menu__eyebrow::before {
    content: "✦";
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 10px;
    background: #eaf7fd;
    color: #347da8;
    font-size: .9rem;
  }

  .mega-menu__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .mega-menu__grid--lists {
    gap: 10px;
  }

  .mega-menu__column,
  .mega-menu__grid--lists > .mega-menu__list,
  .mega-menu__list--compact {
    min-width: 0;
    padding: 15px 16px;
    border: 1px solid rgba(68, 68, 68, .05);
    border-radius: 17px;
    background: #eaf7fd;
    box-shadow: 0 8px 20px rgba(68, 68, 68, .035);
  }

  .mega-menu__column:nth-child(3n+2),
  .mega-menu__grid--lists > .mega-menu__list:nth-child(3n+2) {
    background: #fff0f6;
  }

  .mega-menu__column:nth-child(3n+3),
  .mega-menu__grid--lists > .mega-menu__list:nth-child(3n+3) {
    background: #fff8e8;
  }

  .mega-menu__column h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 0 8px;
    color: var(--isp-ink);
    font-size: .78rem;
    font-weight: 850;
    letter-spacing: .05em;
    text-transform: none;
  }

  .mega-menu__column h2::before {
    content: "";
    width: 8px;
    height: 8px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: var(--isp-primary);
    box-shadow: 0 0 0 4px rgba(115, 192, 238, .18);
  }

  .mega-menu__column:nth-child(3n+2) h2::before {
    background: var(--isp-secondary);
    box-shadow: 0 0 0 4px rgba(237, 115, 164, .16);
  }

  .mega-menu__column:nth-child(3n+3) h2::before {
    background: var(--isp-accent);
    box-shadow: 0 0 0 4px rgba(235, 191, 122, .19);
  }

  .mega-menu__column a,
  .mega-menu__list a {
    display: flex;
    min-height: 36px;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin: 0;
    padding: 7px 3px;
    border-bottom: 1px solid rgba(68, 68, 68, .08);
    border-radius: 0;
    color: #5b585a;
    font-size: .88rem;
    line-height: 1.35;
    text-decoration: none;
    transition: padding .18s ease, background-color .18s ease;
  }

  .mega-menu__column li:last-child > a,
  .mega-menu__list li:last-child > a {
    border-bottom-color: transparent;
  }

  .mega-menu__column a::after,
  .mega-menu__list a::after {
    content: "›";
    flex: 0 0 auto;
    color: var(--isp-muted);
    font-size: 1rem;
  }

  .mega-menu__column a:hover,
  .mega-menu__column a:focus-visible,
  .mega-menu__list a:hover,
  .mega-menu__list a:focus-visible,
  .mega-menu__column .current-menu-item > a,
  .mega-menu__list .current-menu-item > a {
    padding-right: 5px;
    padding-left: 9px;
    border-radius: 9px;
    color: var(--isp-ink);
    background: rgba(255, 255, 255, .78);
    text-decoration: none;
    transform: none;
  }

  .mega-menu__column .current-menu-item > a,
  .mega-menu__list .current-menu-item > a {
    font-weight: 800;
  }

  .mega-menu__list--compact {
    display: block;
    max-width: none;
  }

  .mega-menu__list--compact a {
    min-height: 40px;
  }

  .mega-menu__all {
    display: flex;
    min-height: 52px;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 16px -20px -18px;
    padding: 13px 20px;
    border-top: 1px solid var(--isp-border);
    border-radius: 0;
    background: #fbfdfe;
    color: var(--isp-ink);
    font-size: .8rem;
    font-weight: 800;
    letter-spacing: .02em;
    text-decoration: none;
    text-transform: none;
    transition: background-color .15s ease;
  }

  .mega-menu__all:hover,
  .mega-menu__all:focus-visible {
    background: #fff8e8;
    text-decoration: none;
  }

  .mega-menu__all:hover span {
    transform: translateX(3px);
  }
}

@media (min-width: 961px) and (max-width: 1120px) {
  .primary-menu > .menu-item > a,
  .nav-item-row > a {
    padding-left: 9px;
    padding-right: 9px;
    font-size: .82rem;
  }

  .nav-item-row > a {
    padding-right: 8px;
  }

  .submenu-toggle {
    width: 27px;
    margin-left: -7px;
  }

  .mega-menu { width:var(--mega-width,min(820px,calc(100vw - 40px))); }
  .mega-menu--compact { width:var(--mega-width,min(420px,calc(100vw - 40px))); }
}

/* Tablet and mobile navigation */
@media (max-width: 960px) {
  .site-header {
    background: rgba(255, 255, 255, .98);
    border-bottom-color: rgba(68, 68, 68, .08);
    box-shadow: 0 7px 24px rgba(68, 68, 68, .07);
  }

  .header-inner {
    min-height: 72px;
    gap: 8px;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .site-branding {
    flex: 1 1 auto;
    min-width: 0;
  }

  .custom-logo-link {
    max-width: 100%;
  }

  .custom-logo {
    width: auto;
    max-width: min(44vw, 180px);
    max-height: 54px;
    object-fit: contain;
  }

  .menu-toggle,
  .search-toggle {
    flex: 0 0 46px;
    width: 46px;
    height: 46px;
    border: 1px solid rgba(115, 192, 238, .30);
    border-radius: 14px;
    background: rgba(181, 222, 242, .62);
    color: var(--isp-ink);
    box-shadow: none;
  }

  .menu-toggle:hover,
  .menu-toggle:focus-visible,
  .search-toggle:hover,
  .search-toggle:focus-visible,
  .menu-toggle[aria-expanded="true"],
  .search-toggle[aria-expanded="true"] {
    background: rgba(181, 222, 242, .90);
    border-color: rgba(115, 192, 238, .48);
    transform: none;
  }

  .search-toggle::after {
    display: none;
  }

  .menu-toggle svg,
  .search-toggle svg {
    width: 22px;
    height: 22px;
  }

  .primary-navigation {
    max-height: calc(100dvh - 72px);
    padding: 10px 0 max(14px, env(safe-area-inset-bottom));
    overflow-y: auto;
    overscroll-behavior: contain;
    background: rgba(248, 252, 255, .985);
    border-top: 1px solid rgba(68, 68, 68, .06);
    border-bottom: 1px solid rgba(68, 68, 68, .08);
    box-shadow: 0 18px 36px rgba(68, 68, 68, .10);
  }

  .admin-bar .primary-navigation {
    max-height: calc(100dvh - 118px);
  }

  .primary-menu {
    width: min(calc(100% - 24px), 680px);
    margin: 0 auto;
    padding: 8px;
    border: 1px solid rgba(68, 68, 68, .08);
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 10px 30px rgba(68, 68, 68, .055);
  }

  .primary-menu > .menu-item {
    margin: 2px 0;
  }

  .primary-menu > .menu-item > a,
  .nav-item-row > a {
    min-height: 48px;
    padding: 0 13px;
    border: 1px solid transparent;
    border-radius: 14px;
    color: var(--isp-ink);
    font-size: .98rem;
    font-weight: 760;
    letter-spacing: -.012em;
    line-height: 1.2;
    text-transform: none;
  }

  .primary-menu > .menu-item > a:hover,
  .primary-menu > .menu-item > a:focus-visible,
  .nav-item-row > a:hover,
  .nav-item-row > a:focus-visible {
    color: var(--isp-ink);
    background: rgba(181, 222, 242, .18);
  }

  .primary-menu > .menu-item.current-menu-item > a,
  .primary-menu > .menu-item.current-menu-ancestor > .nav-item-row {
    background: rgba(181, 222, 242, .30);
    border-color: rgba(115, 192, 238, .20);
  }

  .nav-item-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 44px;
    align-items: center;
    min-height: 50px;
    border: 1px solid transparent;
    border-radius: 14px;
  }

  .nav-item-row > a {
    width: 100%;
    min-width: 0;
    padding-right: 8px;
    border: 0;
    background: transparent;
  }

  .submenu-toggle {
    width: 40px;
    height: 40px;
    margin: 0 3px 0 0;
    border: 1px solid transparent;
    border-radius: 12px;
    background: rgba(181, 222, 242, .16);
    color: #615e60;
  }

  .submenu-toggle:hover,
  .submenu-toggle:focus-visible,
  .submenu-toggle[aria-expanded="true"] {
    color: var(--isp-ink);
    background: rgba(181, 222, 242, .50);
    border-color: rgba(115, 192, 238, .18);
  }

  .submenu-toggle svg {
    width: 15px;
    height: 15px;
  }

  .mega-menu,
  .mega-menu--compact,
  .admin-bar .mega-menu,
  .admin-bar .mega-menu--compact {
    width: 100%;
    margin: 4px 0 8px;
    padding: 0;
  }

  .mega-menu__inner,
  .mega-menu--compact .mega-menu__inner {
    position: relative;
    overflow: hidden;
    padding: 14px;
    border: 1px solid rgba(68, 68, 68, .08);
    border-radius: 16px;
    background: #fff;
    box-shadow: 0 14px 32px rgba(68, 68, 68, .09);
  }

  .mega-menu__inner::before {
    inset: 0 0 auto 0;
    width: auto;
    height: 3px;
    border-radius: 16px 16px 0 0;
    background: linear-gradient(90deg, var(--isp-primary), var(--isp-secondary), var(--isp-accent));
  }

  .mega-menu__eyebrow {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 2px 0 12px;
    color: var(--isp-ink);
    font-size: .70rem;
    font-weight: 850;
    letter-spacing: .09em;
    line-height: 1.3;
    text-transform: uppercase;
  }

  .mega-menu__eyebrow::before {
    content: "✦";
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    flex: 0 0 auto;
    border-radius: 9px;
    background: #eaf7fd;
    color: #347da8;
  }

  .mega-menu__grid,
  .mega-menu__grid--lists {
    gap: 14px 18px;
  }

  .mega-menu__column h2 {
    margin: 0 0 7px;
    color: var(--isp-ink);
    font-size: .78rem;
    font-weight: 850;
    letter-spacing: .03em;
    text-transform: none;
  }

  .mega-menu__column a,
  .mega-menu__list a {
    display: flex;
    align-items: center;
    min-height: 42px;
    padding: 8px 9px;
    justify-content: space-between;
    gap: 8px;
    border-bottom: 1px solid rgba(68, 68, 68, .08);
    border-radius: 0;
    color: #5b585a;
    font-size: .92rem;
    line-height: 1.3;
    text-decoration: none;
  }

  .mega-menu__column li:last-child > a,
  .mega-menu__list li:last-child > a {
    border-bottom-color: transparent;
  }

  .mega-menu__column a::after,
  .mega-menu__list a::after {
    content: "›";
    flex: 0 0 auto;
    color: var(--isp-muted);
  }

  .mega-menu__column a:hover,
  .mega-menu__column a:focus-visible,
  .mega-menu__list a:hover,
  .mega-menu__list a:focus-visible,
  .mega-menu__column .current-menu-item > a,
  .mega-menu__list .current-menu-item > a {
    color: var(--isp-ink);
    background: rgba(181, 222, 242, .26);
    text-decoration: none;
  }

  .mega-menu__all {
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: space-between;
    margin: 14px -14px -14px;
    padding: 10px 14px;
    border-top: 1px solid var(--isp-border);
    border-radius: 0;
    background: #fbfdfe;
    color: var(--isp-ink);
    font-size: .82rem;
    font-weight: 800;
    letter-spacing: 0;
    text-decoration: none;
    text-transform: none;
  }

  .mega-menu__all:hover,
  .mega-menu__all:focus-visible {
    background: rgba(235, 191, 122, .24);
    text-decoration: none;
  }
}

@media (max-width: 700px) {
  .header-inner {
    min-height: 68px;
    gap: 7px;
    padding-top: 7px;
    padding-bottom: 7px;
  }

  .custom-logo {
    max-width: min(42vw, 154px);
    max-height: 46px;
  }

  .menu-toggle,
  .search-toggle {
    flex-basis: 44px;
    width: 44px;
    height: 44px;
    border-radius: 13px;
  }

  .primary-navigation {
    max-height: calc(100dvh - 68px);
    padding-top: 8px;
  }

  .primary-menu {
    width: calc(100% - 16px);
    padding: 6px;
    border-radius: 16px;
  }

  .primary-menu > .menu-item {
    margin: 1px 0;
  }

  .primary-menu > .menu-item > a,
  .nav-item-row > a {
    min-height: 46px;
    padding-left: 11px;
    padding-right: 11px;
    border-radius: 12px;
    font-size: .95rem;
  }

  .nav-item-row {
    grid-template-columns: minmax(0, 1fr) 42px;
    min-height: 48px;
    border-radius: 12px;
  }

  .submenu-toggle {
    width: 38px;
    height: 38px;
    border-radius: 11px;
  }

  .mega-menu__inner,
  .mega-menu--compact .mega-menu__inner {
    padding: 12px;
    border-radius: 14px;
  }

  .mega-menu__eyebrow {
    margin-bottom: 10px;
  }

  .mega-menu__grid,
  .mega-menu__grid--lists {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .mega-menu__column ul,
  .mega-menu__list,
  .mega-menu__list--compact {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0;
    max-width: none;
  }

  .mega-menu__column a,
  .mega-menu__list a {
    min-height: 40px;
    padding: 7px 8px;
    font-size: .90rem;
  }

  .mega-menu__all {
    margin: 12px -12px -12px;
  }
}

@media (max-width: 360px) {
  .custom-logo {
    max-width: 140px;
  }

  .mega-menu__column ul,
  .mega-menu__list,
  .mega-menu__list--compact {
    grid-template-columns: 1fr;
  }
}