/* JMA shared navigation: only the current page receives the sky-blue pill. */
.nav-container {max-width:1380px; gap:18px;}
.logo {font-size:clamp(1.2rem,1.8vw,1.78rem);white-space:nowrap;}
.desktop-nav ul {gap:clamp(4px,.45vw,9px);align-items:center;}
.desktop-nav li {margin:0;}
.desktop-nav li > a,
.desktop-nav .portal-menu summary {
  display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;
  border-radius:999px;border:1px solid transparent;
  padding:10px 13px;min-height:42px;white-space:nowrap;
  font:600 clamp(.79rem,.84vw,.92rem)/1.2 'Inter',Arial,sans-serif;
  text-decoration:none;color:#2c3f57;background:transparent;
  transition:background .18s,color .18s,border-color .18s,box-shadow .18s;
}
.desktop-nav li > a:hover,
.desktop-nav .portal-menu summary:hover {background:#f0f8ff;color:#004782;}
.desktop-nav li > a[aria-current="page"],
.desktop-nav .portal-menu summary[aria-current="page"] {
  color:#004a84;background:#ddf2ff;border-color:#b7e2fb;
  box-shadow:0 2px 7px rgba(3,100,160,.08);font-weight:750;
}
.desktop-nav li > a:focus-visible,
.portal-menu summary:focus-visible,
.portal-entry-card:focus-visible,
.portal-submenu a:focus-visible {outline:3px solid #16a3d9;outline-offset:3px;}
.portal-menu {position:relative;}
.desktop-nav .portal-menu summary {gap:9px;cursor:pointer;list-style:none;user-select:none;}
.portal-menu summary::-webkit-details-marker {display:none;}
.portal-menu summary::marker {content:"";}
.portal-chevron {width:7px;height:7px;display:inline-block;flex:none;
  border-right:1.8px solid currentColor;border-bottom:1.8px solid currentColor;
  transform:rotate(45deg) translateY(-2px);transition:transform .18s ease;opacity:.72;}
.portal-menu[open] .portal-chevron {transform:rotate(225deg) translateY(-1px);}
.desktop-nav .portal-menu[open] summary {background:#f0f8ff;color:#004a84;}
.desktop-nav .portal-menu[open] summary[aria-current="page"] {background:#ddf2ff;}
.portal-submenu {position:absolute;right:0;top:calc(100% + 12px);min-width:234px;
  padding:9px;background:#fff;box-shadow:0 15px 35px rgba(7,32,76,.18);
  border:1px solid #dbeaf5;border-radius:15px;z-index:1003;}
.portal-submenu a {display:block;padding:11px 14px;border-radius:10px;
  color:#223954;text-decoration:none;font-size:.93rem;line-height:1.4;}
.portal-submenu a:hover {background:#eff8ff;color:#004a84;}
.portal-submenu a[aria-current="page"] {background:#ddf2ff;color:#004a84;font-weight:750;}
.mobile-menu ul {list-style:none;padding:0;margin:0;}
.mobile-menu a[aria-current="page"] {background:#ddf2ff;color:#004a84;font-weight:750;
  border-radius:12px;padding-left:13px;padding-right:13px;}
.mobile-menu a.mobile-portal-title {color:#003087;font-weight:800;margin-top:10px;}
.mobile-menu a.mobile-portal-title[aria-current="page"] {color:#004a84;}
.mobile-menu a.mobile-portal-child {border-bottom:0;padding:8px 12px 8px 20px;font-size:1.05rem;}
.mobile-menu a.mobile-portal-child[aria-current="page"] {background:#ddf2ff;}
.learning-hub {background: #eef5fc; padding: 78px 24px 90px;}
.learning-hub-inner {max-width:1180px; margin:auto;}
.learning-hub-intro {text-align:center; max-width:730px; margin:0 auto 34px;}
.portal-eyebrow {font-weight:800; font-size:.78rem; color:#007dbb; letter-spacing:.12em;}
.learning-hub h2 {font-family:'Playfair Display',serif; font-size:clamp(1.8rem,3.1vw,2.6rem); color:#003087; margin:10px 0 12px;}
.learning-hub-intro p {color:#536176; font-size:1.08rem;}
.portal-entry-grid {display:grid; grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.portal-entry-card {display:flex; align-items:center; gap:20px; border:1px solid #dae6f3; background:white; padding:30px; border-radius:18px; text-decoration:none; color:#172a48; box-shadow:0 8px 24px rgba(22,50,95,.06); transition:transform .2s,box-shadow .2s;}
.portal-entry-card:hover {transform:translateY(-3px); box-shadow:0 16px 32px rgba(22,50,95,.12);}
.portal-entry-icon {font-size:2rem; background:#e8f5ff; border-radius:14px; display:grid; place-items:center; flex:0 0 68px;height:68px;}
.portal-entry-text {display:flex; flex-direction:column; gap:6px; flex:1;}
.portal-entry-text strong {font-size:1.32rem;color:#003087;}
.portal-entry-text small {font-size:.94rem;line-height:1.5; color:#536176;}
.portal-entry-arrow {font-size:1.8rem; color:#007dc2;}
@media(max-width:1180px) {.desktop-nav,.lang-switch{display:none!important}.hamburger{display:flex!important}}
@media(max-width:750px) {.portal-entry-grid {grid-template-columns:1fr;} .learning-hub {padding:56px 18px 65px;} .portal-entry-card {padding:21px 18px; gap:14px;} .portal-entry-icon{flex-basis:55px;height:55px;font-size:1.7rem} .mobile-menu{max-height:calc(100dvh - 70px);overflow-y:auto}}
@media(max-width:390px) {.portal-entry-text strong{font-size:1.1rem}.portal-entry-arrow{display:none}}
/* Keep the original home hero comfortable on phones. */
@media(max-width:700px) {
  .hero {min-height:auto!important; padding:85px 0 35px!important;}
  .window {width:94%;}
  .window-content {display:block;}
  .window-image {min-width:0!important; width:100%; height:245px!important;}
  .window-text {min-width:0!important; width:100%; padding:26px 24px 32px!important;}
  .window-text h1 {font-size:clamp(1.8rem,8vw,2.25rem)!important;line-height:1.15;}
  .window-text p {font-size:1.02rem!important;margin-bottom:1.4rem;}
  .btn-primary{font-size:1rem!important;padding:13px 22px!important;}
  .news-grid {grid-template-columns:minmax(0,1fr)!important;}
  footer .footer-container {grid-template-columns:minmax(0,1fr)!important;}
}

/* Shared EN / JP navigation */
.portal-lang-switch{display:flex;align-items:center;gap:5px;flex-shrink:0}
.portal-lang-switch a,.portal-mobile-lang a{display:inline-flex;align-items:center;justify-content:center;min-width:40px;padding:7px 10px;border:1px solid #cedde9;border-radius:999px;background:#fff;color:#003087;text-decoration:none;font-size:.88rem;font-weight:700}
.portal-lang-switch a.active,.portal-mobile-lang a.active{background:#003087;color:#fff;border-color:#003087}
.portal-mobile-lang{display:none}
@media(max-width:1180px){.portal-lang-switch{display:none}.portal-mobile-lang{display:flex;gap:10px;margin-top:15px}.portal-mobile-lang a{flex:1;padding:11px}}
@media(min-width:1181px){.portal-mobile-lang{display:none}}

@media(max-width:1180px){.mobile-menu li + li {margin-top:2px;} .mobile-menu a {transition:background .18s,color .18s;} }
@media(prefers-reduced-motion:reduce){.desktop-nav li>a,.desktop-nav .portal-menu summary,.portal-chevron{transition:none;}}
/* Opaque mobile navigation for legibility over photographic headers. */
.mobile-menu {background:#fff;}