/* BK360 Phase 34 — final public UI/UX, performance, SEO and accessibility polish */
:root {
    --bk360-focus: 0 0 0 3px rgba(18,111,56,.22);
    --bk360-soft-card: linear-gradient(180deg, rgba(255,255,255,.96), rgba(250,253,251,.96));
    --bk360-card-shadow: 0 16px 38px rgba(6,45,22,.075);
    --bk360-card-shadow-hover: 0 22px 58px rgba(6,45,22,.12);
}

.skip-link {
    position: fixed;
    left: 14px;
    top: 10px;
    z-index: 9999;
    transform: translateY(-160%);
    background: var(--green-900, #0a3f20);
    color: #fff;
    border-radius: 999px;
    padding: 9px 14px;
    font-size: .84rem;
    font-weight: 800;
    transition: transform .18s ease;
}
.skip-link:focus { transform: translateY(0); outline: none; box-shadow: var(--bk360-focus); }

body { text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
main:focus { outline: none; }
:focus-visible { outline: none; box-shadow: var(--bk360-focus); }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { box-shadow: var(--bk360-focus); }

.site-header { box-shadow: 0 8px 22px rgba(6,45,22,.045); }
.nav { min-height: 76px; }
.brand-logo { width: 56px; height: 56px; }
.brand-name { font-size: 1.12rem; }
.brand-sub { font-size: .74rem; }
.nav-link, .nav-parent { transition: background .18s ease, color .18s ease, transform .18s ease; }
.nav-link:hover, .nav-parent:hover { transform: translateY(-1px); }
.nav-link.active, .nav-item.active > .nav-parent, .submenu-link.active {
    font-weight: 800;
}
.nav-item.active > .nav-parent { background: var(--green-100); color: var(--green-800); }
.nav-parent::after { content: "⌄"; display: inline-block; margin-left: 6px; font-size: .72rem; transform: translateY(-1px); opacity: .72; }
.nav-item.submenu-open > .nav-parent::after, .nav-item:hover > .nav-parent::after { transform: rotate(180deg); }
.submenu { animation: bk360FadeSlide .18s ease both; }
@keyframes bk360FadeSlide { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

.hamburger-lines { display: inline-grid !important; width: 16px; gap: 3px; }
.hamburger-lines i { display: block; width: 16px; height: 2px; background: currentColor; border-radius: 999px; }
.mobile-menu-toggle span { background: transparent !important; height: auto !important; }
.mobile-menu-toggle b { letter-spacing: .01em; }

.hero { overflow: hidden; }
.hero-with-photo { padding-top: 74px; }
.hero-copy h1 { max-width: 760px; }
.hero-visual img,
.home-image-card img,
.article-thumb img,
.photo-visual img,
.page-visual img { display: block; width: 100%; height: auto; }
.hero-photo-frame img { aspect-ratio: 4 / 3; object-fit: cover; }
.hero-photo-frame,
.photo-visual,
.article-thumb,
.home-image-card,
.page-visual { background: #fff; }
.hero-photo-frame { border-radius: 28px; overflow: hidden; box-shadow: 0 26px 70px rgba(6,45,22,.16); border: 1px solid rgba(18,111,56,.14); }
.hero-photo-mini-row img { aspect-ratio: 16 / 10; object-fit: cover; border-radius: 18px; box-shadow: 0 16px 36px rgba(6,45,22,.12); }

.feature-card, .info-card, .article-card, .unit-card, .contact-primary, .login-card, .stat-card, .home-image-card {
    background: var(--bk360-soft-card);
    transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.feature-card:hover, .info-card:hover, .article-card:hover, .unit-card:hover, .home-image-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--bk360-card-shadow-hover);
    border-color: rgba(18,111,56,.22);
}
.article-card { overflow: hidden; padding: 0; }
.article-card > :not(.article-thumb) { margin-left: 18px; margin-right: 18px; }
.article-card .article-meta { display: inline-block; margin-top: 16px; }
.article-card a { display: inline-flex; margin: 2px 0 18px; }
.article-thumb { overflow: hidden; border-bottom: 1px solid var(--line); }
.article-thumb img { aspect-ratio: 16 / 10; object-fit: cover; transition: transform .35s ease; }
.article-card:hover .article-thumb img { transform: scale(1.035); }

.home-image-grid { align-items: stretch; }
.home-image-card { overflow: hidden; }
.home-image-card img { aspect-ratio: 16 / 11; object-fit: cover; }
.home-image-card > div { padding: 18px; }
.image-rich-section .photo-visual { border-radius: 24px; overflow: hidden; border: 1px solid var(--line); box-shadow: var(--bk360-card-shadow); }
.image-rich-section .photo-visual img { aspect-ratio: 16 / 11; object-fit: cover; }

.btn { min-height: 42px; }
.btn:hover { box-shadow: 0 12px 28px rgba(18,111,56,.16); }
.section { scroll-margin-top: 86px; }
.section-head p { color: #536358; }
.eyebrow { letter-spacing: .14em; }

.notice-box, .strip-card { box-shadow: 0 18px 44px rgba(6,45,22,.08); }
.strip-card { background: radial-gradient(circle at 92% 15%, rgba(182,134,23,.28), transparent 30%), linear-gradient(135deg, var(--green-950), var(--green-800)); }
.site-footer { background: radial-gradient(circle at top left, rgba(18,111,56,.34), transparent 30%), var(--green-950); }
.site-footer a { transition: color .16s ease, transform .16s ease; }
.site-footer a:hover { transform: translateX(2px); }
.footer-grid { grid-template-columns: 1.35fr .8fr .85fr .95fr 1.1fr; }
.footer-bottom { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }

/* Portal and public common empty states */
.empty-state, .bk-empty-state {
    border: 1px dashed rgba(18,111,56,.24);
    background: #fbfefc;
    border-radius: 18px;
    padding: 20px;
    color: var(--muted);
}

/* Generic admin/public CMS polish if this CSS is accidentally loaded in admin previews */
.badge, .status-badge { border-radius: 999px; padding: .25rem .55rem; font-size: .75rem; font-weight: 800; }
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

@media (max-width: 980px) {
    .nav { min-height: 70px; }
    .nav-links { top: 82px; }
    .nav-item.has-submenu > .submenu { display: none; }
    .nav-item.has-submenu.submenu-open > .submenu { display: block; }
    .nav-parent::after { float: right; margin-top: 2px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .brand-logo { width: 46px; height: 46px; }
    .brand-sub { max-width: 145px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
    .hero-with-photo { padding-top: 44px; }
    .hero-actions .btn, .center-actions .btn { width: 100%; }
    .hero-photo-mini-row { display: none; }
    .article-card > :not(.article-thumb) { margin-left: 16px; margin-right: 16px; }
    .home-image-card > div { padding: 16px; }
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { display: block; }
}