/* ============================================================
   NATPAC TRANSFORM 2026 — Design System
   Bootstrap 5 + custom professional theme
   ============================================================ */

:root {
  --np-navy: #0b2c4f;
  --np-navy-2: #123e6b;
  --np-navy-3: #0a1f38;
  --np-teal: #0f9d8f;
  --np-teal-2: #0c8378;
  --np-gold: #f2b134;
  --np-amber: #f59e0b;
  --np-light: #f4f7fb;
  --np-border: #e3e9f1;
  --np-ink: #22303f;
  --np-muted: #5b6b7d;
  --np-grad: linear-gradient(120deg, var(--np-navy-3), var(--np-navy) 45%, var(--np-teal));
  --np-shadow: 0 10px 30px rgba(11, 44, 79, .10);
  --np-shadow-lg: 0 20px 45px rgba(11, 44, 79, .16);
  --np-radius: 16px;
  --font-head: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--np-ink);
  background: #fff;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1,h2,h3,h4,h5,h6 { font-family: var(--font-head); color: var(--np-navy); font-weight: 700; }
p { line-height: 1.75; }
a { text-decoration: none; }
a:focus-visible { outline: 2px solid var(--np-teal); outline-offset: 2px; }

/* ---------------- Navbar ---------------- */
.np-main-nav {
  background: var(--np-navy-3);
  padding: .65rem 0;
  box-shadow: 0 2px 12px rgba(0,0,0,.18);
  position: sticky; top: 0; z-index: 1030;
}
.np-main-nav .nav-link {
  color: rgba(255,255,255,.82); font-weight: 500; font-size: .95rem;
  padding: .5rem .8rem !important; border-radius: 8px;
}
.np-main-nav .nav-link:hover, .np-main-nav .nav-link.active { color: #fff; background: rgba(255,255,255,.08); }
.brand-badge {
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 12px;
  background: linear-gradient(135deg, var(--np-teal), #0f6d68);
  color: #fff; font-family: var(--font-head); font-weight: 800; font-size: .72rem;
  letter-spacing: .5px; box-shadow: 0 6px 14px rgba(15,157,143,.4);
}
.brand-badge-light { background: linear-gradient(135deg, var(--np-gold), #d98f14); box-shadow: none; }
.brand-text { line-height: 1.1; color: #fff; }
.brand-text strong { display: block; font-family: var(--font-head); font-size: 1rem; }
.brand-text small { color: rgba(255,255,255,.7); font-size: .72rem; }

.btn-np-accent {
  background: linear-gradient(135deg, var(--np-gold), var(--np-amber));
  color: #3a2400; font-weight: 700; border: none; border-radius: 10px;
  box-shadow: 0 8px 18px rgba(242,177,52,.35);
}
.btn-np-accent:hover { color: #fff; background: linear-gradient(135deg, var(--np-teal), var(--np-teal-2)); transform: translateY(-1px); }
.btn-np-teal { background: var(--np-teal); color: #fff; font-weight: 600; border-radius: 10px; }
.btn-np-teal:hover { background: var(--np-teal-2); color: #fff; }
.btn-np-outline { border: 1.5px solid var(--np-teal); color: var(--np-teal); font-weight: 600; border-radius: 10px; background: transparent; }
.btn-np-outline:hover { background: var(--np-teal); color: #fff; }
.btn-np-dark { background: var(--np-navy); color: #fff; font-weight: 600; border-radius: 10px; }
.btn-np-dark:hover { background: var(--np-navy-2); color: #fff; }

/* Conference sub-nav */
.np-conf-nav {
  background: #fff;
  border-bottom: 2px solid #eef2f7;
  box-shadow: 0 4px 14px rgba(11,44,79,.06);
  padding: 0;
  position: sticky; top: 65px; z-index: 1020;
}
.np-conf-nav .nav-link {
  color: var(--np-navy); font-weight: 600; font-size: .9rem;
  padding: .9rem .85rem !important; border-bottom: 3px solid transparent;
}
.np-conf-nav .nav-link:hover, .np-conf-nav .nav-link.active {
  color: var(--np-teal); border-bottom-color: var(--np-teal);
}
.np-conf-nav .dropdown-menu { border: none; box-shadow: var(--np-shadow); border-radius: 12px; margin-top: 2px; }
.np-conf-nav .dropdown-item { font-size: .88rem; padding: .5rem 1rem; color: var(--np-ink); }
.np-conf-nav .dropdown-item:hover { background: var(--np-light); color: var(--np-teal); }

/* ---------------- Buttons / dropdowns ---------------- */
.dropdown-menu { box-shadow: var(--np-shadow); border: none; border-radius: 12px; }
.np-main-nav .dropdown-menu { background: #fff; border-radius: 14px; padding: .4rem; }
.np-main-nav .dropdown-item { border-radius: 8px; }
.dropdown-divider { border-color: var(--np-border); }

/* ---------------- Hero (home) ---------------- */
.np-hero {
  position: relative; color: #fff;
  background:
    radial-gradient(1000px 500px at 90% -10%, rgba(15,157,143,.35), transparent 60%),
    radial-gradient(800px 400px at -10% 110%, rgba(242,177,52,.18), transparent 60%),
    var(--np-grad);
  padding: 5rem 0 7.5rem;
  overflow: hidden;
}
.np-hero::after {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.14) 1px, transparent 1px);
  background-size: 26px 26px;
  opacity: .35; pointer-events: none;
}
.np-hero .hero-kicker {
  display: inline-flex; align-items: center; gap: .5rem;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.25);
  padding: .4rem 1rem; border-radius: 50rem; font-size: .8rem; font-weight: 600;
  letter-spacing: .4px; backdrop-filter: blur(4px);
}
.np-hero h1 { color: #fff; font-weight: 800; font-size: clamp(1.7rem, 3.4vw, 2.9rem); line-height: 1.18; }
.np-hero .hero-dates {
  font-size: 1.05rem; font-weight: 600; color: #ffe9b3;
}
.np-hero .hero-venue { color: rgba(255,255,255,.88); }
.np-hero .hero-badges { display: flex; flex-wrap: wrap; gap: .5rem; }
.np-hero .hero-badge {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.22);
  border-radius: 50rem; padding: .35rem .9rem; font-size: .82rem; font-weight: 500;
}
.np-hero .hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; }

/* Countdown */
.np-countdown { display: flex; gap: .9rem; flex-wrap: wrap; }
.np-countdown .cd-box {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.22);
  backdrop-filter: blur(6px); border-radius: 14px; padding: .9rem 1.2rem;
  min-width: 92px; text-align: center;
}
.np-countdown .cd-num { font-family: var(--font-head); font-size: 2rem; font-weight: 800; line-height: 1; color: #fff; }
.np-countdown .cd-lbl { font-size: .72rem; text-transform: uppercase; letter-spacing: 1.5px; color: #ffe9b3; }

/* ---------------- Sections ---------------- */
.np-section { padding: 4.5rem 0; }
.np-section-alt { background: var(--np-light); }
.np-section-head { margin-bottom: 2.75rem; }
.np-kicker {
  display: inline-block; color: var(--np-teal); font-weight: 700; font-size: .78rem;
  letter-spacing: 2px; text-transform: uppercase; margin-bottom: .5rem;
}
.np-section-title { font-size: clamp(1.5rem, 2.6vw, 2.2rem); font-weight: 800; }
.np-section-sub { color: var(--np-muted); font-size: 1.02rem; }

/* ---------------- Cards ---------------- */
.np-card {
  background: #fff; border: 1px solid var(--np-border); border-radius: var(--np-radius);
  box-shadow: var(--np-shadow); height: 100%;
  transition: transform .25s ease, box-shadow .25s ease;
}
.np-card:hover { transform: translateY(-6px); box-shadow: var(--np-shadow-lg); }
.np-card .card-body { padding: 1.75rem; }
.np-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 58px; height: 58px; border-radius: 14px; font-size: 1.5rem; color: #fff;
}
.icon-teal { background: linear-gradient(135deg, var(--np-teal), var(--np-teal-2)); }
.icon-navy { background: linear-gradient(135deg, var(--np-navy), var(--np-navy-2)); }
.icon-gold { background: linear-gradient(135deg, var(--np-gold), var(--np-amber)); }

/* ---------------- Theme cards ---------------- */
.theme-card .np-icon { margin-bottom: 1rem; }
.theme-card h4 { font-size: 1.1rem; }
.theme-card ul { margin: 0; padding-left: 0; list-style: none; }
.theme-card ul li {
  position: relative; padding-left: 1.5rem; font-size: .9rem; line-height: 1.7;
  color: var(--np-ink); margin-bottom: .35rem;
}
.theme-card ul li::before {
  content: ''; position: absolute; left: 0; top: .55rem;
  width: 8px; height: 8px; border-radius: 50%; background: var(--np-teal);
}
.theme-blue .np-icon { background: linear-gradient(135deg,#2b6cb0,#1d4d89); }
.theme-red .np-icon { background: linear-gradient(135deg,#e05555,#b93535); }
.theme-green .np-icon { background: linear-gradient(135deg,#2f9e63,#1c7a48); }
.theme-cyan .np-icon { background: linear-gradient(135deg,#17a2b8,#0f7e90); }
.theme-purple .np-icon { background: linear-gradient(135deg,#8b5cf6,#6d3fd1); }

/* ---------------- Accordion (committees) ---------------- */
.np-accordion .accordion-item { border: none; margin-bottom: .9rem; border-radius: 14px !important; overflow: hidden; box-shadow: var(--np-shadow); }
.np-accordion .accordion-button {
  font-family: var(--font-head); font-weight: 700; color: var(--np-navy);
  padding: 1.1rem 1.4rem; background: #fff; font-size: 1.02rem;
}
.np-accordion .accordion-button:not(.collapsed) { background: var(--np-navy); color: #fff; box-shadow: none; }
.np-accordion .accordion-button:focus { box-shadow: none; border: none; }
.np-accordion .accordion-body { background: #fff; padding: 1.2rem 1.4rem; }
.np-member-list { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: 2.2rem; }
.np-member-list li {
  position: relative; padding-left: 1.6rem; padding-top: .35rem; padding-bottom: .35rem;
  font-size: .92rem; line-height: 1.6; break-inside: avoid;
}
.np-member-list li::before {
  content: '\F231'; font-family: 'bootstrap-icons'; color: var(--np-teal);
  position: absolute; left: 0; font-size: .8rem; top: .5rem;
}
.np-member-list.single li { padding-left: 0; font-weight: 600; }
.np-member-list.single li::before { display: none; }

/* ---------------- Tables ---------------- */
.np-table-wrap { border-radius: var(--np-radius); box-shadow: var(--np-shadow); overflow: hidden; border: 1px solid var(--np-border); }
.np-table { margin: 0; }
.np-table thead th {
  background: var(--np-navy); color: #fff; font-family: var(--font-head);
  font-size: .88rem; font-weight: 600; padding: 1rem 1.1rem; border: none; white-space: nowrap;
}
.np-table tbody td { padding: .9rem 1.1rem; font-size: .92rem; vertical-align: middle; border-color: var(--np-border); }
.np-table tbody tr:nth-child(even) td { background: #f8fafc; }
.np-table tbody tr:hover td { background: #eef7f6; }
.np-table .yes { color: var(--np-teal); font-weight: 700; }
.np-table .no { color: #c0392b; }
.np-table .tbl-note { font-size: .88rem; color: var(--np-muted); }

/* ---------------- Alerts / callouts ---------------- */
.np-callout {
  border-left: 5px solid var(--np-teal); background: #eef9f8;
  border-radius: 0 14px 14px 0; padding: 1.2rem 1.4rem;
}
.np-callout.amber { border-left-color: var(--np-amber); background: #fdf6ea; }
.np-callout.navy { border-left-color: var(--np-navy); background: #eef3f9; }
.np-callout.red { border-left-color: #c0392b; background: #fdf0ef; }

/* ---------------- Page hero (inner) ---------------- */
.np-page-hero {
  background:
    radial-gradient(700px 300px at 85% -20%, rgba(15,157,143,.4), transparent 60%),
    var(--np-grad);
  color: #fff; padding: 3.2rem 0 3.6rem; position: relative; overflow: hidden;
}
.np-page-hero::after {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.14) 1px, transparent 1px);
  background-size: 26px 26px; opacity: .3; pointer-events: none;
}
.np-page-hero .breadcrumb-nav { font-size: .84rem; margin-bottom: 1rem; color: rgba(255,255,255,.75); }
.np-page-hero .breadcrumb-nav a { color: #ffe9b3; }
.np-page-hero .breadcrumb-nav .sep { margin: 0 .4rem; opacity: .6; }
.np-page-hero .breadcrumb-nav .current { color: #fff; font-weight: 600; }
.np-page-title { color: #fff; font-weight: 800; font-size: clamp(1.6rem, 3vw, 2.4rem); margin: 0; }

/* ---------------- Search / filters ---------------- */
.np-search {
  position: relative; max-width: 480px;
}
.np-search .form-control {
  padding: .85rem 1.1rem .85rem 2.9rem; border-radius: 12px; border: 1.5px solid var(--np-border);
  box-shadow: var(--np-shadow); font-size: .95rem;
}
.np-search .search-icon { position: absolute; left: 1.1rem; top: 50%; transform: translateY(-50%); color: var(--np-muted); }

/* ---------------- Downloads ---------------- */
.np-download-item {
  display: flex; align-items: center; gap: 1rem; background: #fff;
  border: 1px solid var(--np-border); border-radius: 14px; padding: 1rem 1.2rem;
  box-shadow: var(--np-shadow); margin-bottom: 1rem;
}
.np-download-item .doc-icon { font-size: 2.1rem; color: #c0392b; }
.np-download-item .doc-icon.docx { color: #2b6cb0; }
.np-download-item .doc-title { font-weight: 600; color: var(--np-navy); }
.np-download-item .doc-meta { font-size: .8rem; color: var(--np-muted); }

/* ---------------- Timeline ---------------- */
.np-timeline { position: relative; padding-left: 0; }
.np-timeline::before {
  content: ''; position: absolute; left: 15px; top: 8px; bottom: 8px; width: 3px;
  background: linear-gradient(var(--np-teal), var(--np-navy)); border-radius: 4px;
}
.np-tl-item { position: relative; padding-left: 58px; margin-bottom: 2rem; }
.np-tl-item .tl-dot {
  position: absolute; left: 0; top: 2px; width: 33px; height: 33px; border-radius: 50%;
  background: #fff; border: 3px solid var(--np-teal); display: flex; align-items: center; justify-content: center;
  box-shadow: var(--np-shadow);
}
.np-tl-item .tl-year { font-family: var(--font-head); font-weight: 800; color: var(--np-teal); font-size: 1.1rem; }
.np-tl-item .tl-card { background: #fff; border: 1px solid var(--np-border); border-radius: 14px; padding: 1.2rem 1.4rem; box-shadow: var(--np-shadow); }
.np-tl-item .tl-card h5 { margin-bottom: .35rem; }

/* ---------------- Gallery ---------------- */
.np-gallery-item { position: relative; border-radius: 14px; overflow: hidden; box-shadow: var(--np-shadow); cursor: pointer; }
.np-gallery-item img { width: 100%; height: 230px; object-fit: cover; transition: transform .4s ease; }
.np-gallery-item:hover img { transform: scale(1.07); }
.np-gallery-item .g-overlay {
  position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end;
  background: linear-gradient(transparent 40%, rgba(10,31,56,.85)); padding: 1rem;
  color: #fff; opacity: 0; transition: opacity .3s ease;
}
.np-gallery-item:hover .g-overlay { opacity: 1; }
.np-gallery-item .g-overlay .g-title { font-weight: 700; font-size: .95rem; }

/* ---------------- Lightbox ---------------- */
.np-lightbox {
  position: fixed; inset: 0; z-index: 2000; background: rgba(6,18,32,.92);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all .3s ease; padding: 1.5rem;
}
.np-lightbox.show { opacity: 1; visibility: visible; }
.np-lightbox .lb-close {
  position: absolute; top: 18px; right: 22px; background: rgba(255,255,255,.15);
  border: none; color: #fff; width: 44px; height: 44px; border-radius: 12px; font-size: 1.3rem;
}
.np-lightbox .lb-close:hover { background: var(--np-teal); }
.np-lightbox .lb-content { max-width: 1000px; width: 100%; text-align: center; }
.np-lightbox .lb-content img { max-width: 100%; max-height: 74vh; border-radius: 14px; box-shadow: var(--np-shadow-lg); }
.np-lightbox .lb-caption { margin-top: .9rem; color: #fff; display: flex; flex-direction: column; gap: .15rem; }

/* ---------------- Utilities ---------------- */
.text-navy { color: var(--np-navy) !important; }
.text-teal { color: var(--np-teal) !important; }
.bg-navy { background: var(--np-navy) !important; }
.text-bg-navy { background: var(--np-navy); color: #fff; }

/* ---------------- Video / embed ---------------- */
.video-frame { position: relative; padding-top: 56.25%; border-radius: 16px; overflow: hidden; box-shadow: var(--np-shadow); }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------------- Accordion (general) ---------------- */
.accordion-button::after { background-size: 1.1rem; }

/* Mobile merged conference menu (inside main nav) */
.np-mobile-conf .navbar-nav { margin: 0 !important; }
.np-mobile-conf .nav-link { padding: .55rem .25rem !important; color: rgba(255,255,255,.85); border-bottom: 1px solid rgba(255,255,255,.06); }
.np-mobile-conf .nav-link:hover, .np-mobile-conf .nav-link.active { color: var(--np-gold); }
.np-mobile-conf .dropdown-menu {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.08);
  box-shadow: none; padding: 0 .5rem .5rem;
  position: static !important; margin: 0 0 .5rem; transform: none !important;
}
.np-mobile-conf .dropdown-menu .dropdown-item { color: rgba(255,255,255,.75); border-radius: 8px; font-size: .9rem; padding: .45rem .6rem; }
.np-mobile-conf .dropdown-menu .dropdown-item:hover { background: rgba(255,255,255,.1); color: #fff; }
.np-mobile-conf .dropdown-toggle::after { float: right; margin-top: .55em; }

/* ---------------- Footer ---------------- */
.np-footer { background: var(--np-navy-3); color: rgba(255,255,255,.78); padding-top: 4rem; }
.footer-top { padding-bottom: 2.5rem; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-title { color: #fff; font-size: 1rem; margin-bottom: 1.1rem; font-weight: 700; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: .55rem; }
.footer-links a { color: rgba(255,255,255,.72); font-size: .9rem; }
.footer-links a:hover { color: var(--np-gold); }
.footer-text { font-size: .92rem; }
.footer-address { display: flex; gap: .7rem; font-size: .88rem; color: rgba(255,255,255,.7); }
.footer-address i { color: var(--np-gold); margin-top: .2rem; }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { display: flex; gap: .7rem; margin-bottom: .6rem; font-size: .9rem; }
.footer-contact i { color: var(--np-gold); margin-top: .15rem; }
.footer-contact a { color: rgba(255,255,255,.78); }
.footer-contact a:hover { color: var(--np-gold); }
.footer-bottom { padding: 1.3rem 0; display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem; font-size: .82rem; color: rgba(255,255,255,.55); }
.footer-credit a { color: var(--np-gold); }

/* ---------------- Back to top ---------------- */
.np-backtotop {
  position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border-radius: 12px;
  border: none; background: var(--np-navy); color: #fff; font-size: 1.2rem;
  box-shadow: var(--np-shadow-lg); z-index: 1050; opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all .3s ease;
}
.np-backtotop.show { opacity: 1; visibility: visible; transform: translateY(0); }
.np-backtotop:hover { background: var(--np-teal); }

/* ---------------- Misc ---------------- */
.np-list-check { list-style: none; padding: 0; margin: 0; }
.np-list-check li { position: relative; padding-left: 1.8rem; margin-bottom: .7rem; line-height: 1.7; }
.np-list-check li::before { content: '\F26A'; font-family: 'bootstrap-icons'; color: var(--np-teal); position: absolute; left: 0; }

.np-list-dot { list-style: none; padding: 0; margin: 0; }
.np-list-dot li { position: relative; padding-left: 1.4rem; margin-bottom: .6rem; }
.np-list-dot li::before { content: ''; position: absolute; left: 0; top: .6rem; width: 8px; height: 8px; border-radius: 50%; background: var(--np-gold); }

/* Hero info strip */
.np-info-strip {
  background: #fff; border-radius: 18px; box-shadow: var(--np-shadow-lg);
  margin-top: -4rem; position: relative; z-index: 5; padding: 1.4rem;
}
.np-info-strip .inf { display: flex; gap: .8rem; align-items: flex-start; padding: .5rem 1rem; }
.np-info-strip .inf i { font-size: 1.5rem; color: var(--np-teal); }
.np-info-strip .inf strong { display: block; font-family: var(--font-head); color: var(--np-navy); font-size: .92rem; }
.np-info-strip .inf span { font-size: .82rem; color: var(--np-muted); }

/* Knowledge partners */
.np-partner-grid .np-partner {
  background: #fff; border: 1px solid var(--np-border); border-radius: 14px; height: 100%;
  padding: 1.3rem; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; box-shadow: var(--np-shadow); transition: all .25s ease; min-height: 150px;
}
.np-partner-grid .np-partner:hover { transform: translateY(-4px); border-color: var(--np-teal); }
.np-partner .p-init {
  width: 64px; height: 64px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: #fff; font-family: var(--font-head); font-weight: 800; font-size: 1.05rem; margin-bottom: .8rem;
  background: linear-gradient(135deg, var(--np-navy), var(--np-teal));
}
.np-partner .p-name { font-size: .9rem; font-weight: 600; color: var(--np-navy); }

/* CTA band */
.np-cta {
  background:
    radial-gradient(600px 300px at 10% 0%, rgba(242,177,52,.25), transparent 60%),
    var(--np-grad);
  color: #fff; border-radius: 22px; padding: 3rem 2.5rem; position: relative; overflow: hidden;
}
.np-cta h2 { color: #fff; }
.np-cta p { color: rgba(255,255,255,.85); }

/* Sponsor logo upload dropzone */
.np-dropzone {
  border: 2px dashed var(--np-teal); border-radius: 14px; background: #f0faf9;
  padding: 2.4rem; text-align: center; color: var(--np-muted);
}
.np-dropzone i { font-size: 2.4rem; color: var(--np-teal); }

/* ---------------- Responsive ---------------- */
@media (max-width: 991.98px) {
  .np-conf-nav { position: static; }
  .np-conf-nav .nav-link { padding: .7rem 1rem !important; }
  .np-member-list { columns: 1; }
  .np-hero { padding: 3.5rem 0 8rem; }
}
@media (max-width: 575.98px) {
  .np-info-strip .inf { padding: .5rem .25rem; }
  .np-countdown .cd-box { min-width: 74px; padding: .7rem .8rem; }
  .np-countdown .cd-num { font-size: 1.5rem; }
}