/* =========================================================================
   NICE Journal of Business — Design System
   Premium academic 2026 redesign. Bootstrap 5 + this stylesheet.
   ========================================================================= */

:root {
  --njb-navy: #116446;
  --njb-navy-light: #0c4b34;
  --njb-navy-deep: #0c4b34;

  --njb-gold: #EC691F;
  --njb-gold-light: #EC691F;

  --njb-ink: #172618;
  --njb-muted: #5B6472;
  --njb-line: #E4E8EE;

  --njb-paper: #FFFFFF;
  --njb-bg: #F6F7FA;
  --njb-bg-warm: #F8F6F1;

  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-soft: 0 4px 24px rgba(18, 41, 77, 0.07);
  --shadow-lift: 0 16px 40px rgba(18, 41, 77, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--njb-ink);
  background: var(--njb-bg);
  font-size: 16.5px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

section {
  overflow: hidden;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--njb-navy);
  letter-spacing: -0.01em;
}

a {
  color: var(--njb-navy-light);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--njb-gold);
}

::selection {
  background: var(--njb-gold-light);
  color: var(--njb-navy-deep);
}
.navbar-toggler,
.navbar-toggler:focus,
.navbar-toggler:active,
.navbar-toggler-icon:focus {
    outline: none !important;
    border: none !important;
    box-shadow: none !important;
}
.njb-submit-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(15, 31, 24, .55);
}

.njb-submit-overlay.is-visible {
  display: flex;
}

.njb-submit-overlay__message {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-md);
  background: #fff;
  box-shadow: var(--shadow-lift);
  color: var(--njb-ink);
  font-weight: 600;
}

.njb-submit-spinner {
  width: 1.75rem;
  height: 1.75rem;
  flex: 0 0 auto;
  border: 3px solid var(--njb-line);
  border-top-color: var(--njb-navy);
  border-radius: 50%;
  animation: njb-submit-spin .75s linear infinite;
}

@keyframes njb-submit-spin {
  to { transform: rotate(360deg); }
}

/* Reduced motion respect */
@media (prefers-reduced-motion: reduce) {
  .njb-submit-spinner { animation: none; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2.5px solid var(--njb-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

.njb-eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--njb-gold);
}

.njb-lead {
  color: var(--njb-muted);
  font-size: 1.08rem;
}

/* ---------- Buttons ---------- */
.btn-njb-primary {
  background: linear-gradient(135deg, var(--njb-navy) 0%, var(--njb-navy-light) 100%);
  border: none;
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 0.65rem 1.5rem;
  font-weight: 600;
  transition: transform .2s ease, box-shadow .2s ease;
  box-shadow: 0 6px 18px rgba(18, 41, 77, 0.25);
}

.btn-njb-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(18, 41, 77, 0.32);
}

.btn-njb-gold {
  background: linear-gradient(135deg, var(--njb-gold) 0%, var(--njb-gold-light) 100%);
  border: none;
  color: #2B1D06;
  border-radius: var(--radius-sm);
  padding: 0.65rem 1rem;
  font-weight: 600;
  transition: transform .2s ease, box-shadow .2s ease;
}

.btn-njb-gold:hover {
  color: #2B1D06;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(184, 134, 47, 0.30);
}

.btn-njb-outline {
  border: 1.5px solid rgba(255, 255, 255, 0.55);
  color: #fff;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1.4rem;
  font-weight: 600;
  transition: all .2s ease;
  background: transparent;
}

.btn-njb-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border-color: #fff;
}

.btn-njb-ghost {
  border: 1.5px solid var(--njb-line);
  color: var(--njb-navy);
  border-radius: var(--radius-sm);
  padding: 0.55rem 1.3rem;
  font-weight: 600;
  background: #fff;
  transition: all .2s ease;
}

.btn-njb-ghost:hover {
  border-color: var(--njb-navy-light);
  color: var(--njb-navy-light);
  transform: translateY(-1px);
}

/* ---------- Header ---------- */
.njb-topbar {
  background: var(--njb-navy-deep);
  color: #B9C4D6;
  font-size: 0.8rem;
}

.njb-topbar a {
  color: #B9C4D6;
}

.njb-topbar a:hover {
  color: var(--njb-gold-light);
}

.njb-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--njb-line);
  transition: box-shadow .25s ease, padding .25s ease;
  z-index: 1030;
}

.njb-header.is-scrolled {
  box-shadow: 0 6px 24px rgba(18, 41, 77, 0.08);
}

.njb-brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--njb-navy) 0%, var(--njb-navy-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(18, 41, 77, 0.25);
}

.njb-brand-text {
  line-height: 1.15;
}

.njb-brand-text .title {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--njb-navy);
  font-size: 1.12rem;
}

.njb-brand-text .sub {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: var(--njb-muted);
  text-transform: uppercase;
}

.njb-header .nav-link {
  color: var(--njb-ink);
  font-weight: 500;
  font-size: 0.91rem;
  padding: 0.5rem 0.8rem !important;
  border-radius: var(--radius-sm);
  transition: background .2s ease, color .2s ease;
}

.njb-header .nav-link:hover,
.njb-header .nav-link.active {
  color: var(--njb-navy);
  background: var(--njb-bg);
}

.njb-header .dropdown-menu {
  border: 1px solid var(--njb-line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lift);
  padding: 0.5rem;
}

.njb-header .dropdown-item {
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.9rem;
  font-size: 0.9rem;
}

.njb-header .dropdown-item:hover {
  background: var(--njb-bg);
}

/* ---------- Hero ---------- */
.njb-hero {
  position: relative;
  background: radial-gradient(1200px 500px at 15% -10%, rgba(217, 175, 99, 0.18), transparent 55%),
    linear-gradient(160deg, var(--njb-navy-deep) 0%, var(--njb-navy) 55%, var(--njb-navy-light) 100%);
  color: #fff;
  overflow: hidden;
  padding: 5.5rem 0 6rem;
}

.njb-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 75%);
}

.njb-hero .njb-hero-inner {
  position: relative;
  z-index: 2;
}

.njb-issn-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
}

.njb-hero h1 {
  color: #fff;
  font-size: clamp(2.1rem, 4.2vw, 3.2rem);
  line-height: 1.12;
}

.njb-hero .njb-hero-sub {
  color: #C7D2E3;
  font-size: 1.12rem;
  max-width: 620px;
}

/* Signature element: the "spine ribbon" — stacked volume ledger */
.njb-spine {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.njb-spine .spine-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 10px;
  padding: 10px 14px;
  transition: transform .25s ease, background .25s ease;
}

.njb-spine .spine-row:hover {
  transform: translateX(6px);
  background: rgba(255, 255, 255, 0.13);
}

.njb-spine .spine-row .bar {
  width: 5px;
  height: 30px;
  border-radius: 4px;
  background: linear-gradient(180deg, var(--njb-gold-light), var(--njb-gold));
}

.njb-spine .spine-row .meta {
  font-size: 0.8rem;
  color: #D7E0EE;
}

.njb-spine .spine-row .meta strong {
  color: #fff;
  display: block;
  font-size: 0.88rem;
}

/* ---------- Sections ---------- */
.njb-section {
  padding: 5rem 0;
}

.njb-section-alt {
  background: var(--njb-bg-warm);
}

.njb-section-title {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin-bottom: 0.5rem;
}

.njb-section-lead {
  color: var(--njb-muted);
  max-width: 640px;
  margin-bottom: 2.5rem;
}

/* ---------- Cards ---------- */
.njb-card {
  background: var(--njb-paper);
  border: 1px solid var(--njb-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  transition: transform .28s ease, box-shadow .28s ease, border-color .28s ease;
}

.njb-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lift);
  border-color: rgba(184, 134, 47, 0.35);
}

.njb-icon-tile {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(18, 41, 77, 0.08), rgba(184, 134, 47, 0.10));
  color: var(--njb-navy);
  font-size: 1.35rem;
}

.njb-research-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: #fff;
  border: 1px solid var(--njb-line);
  border-radius: 999px;
  padding: 0.55rem 1.1rem;
  font-size: 0.87rem;
  font-weight: 600;
  color: var(--njb-navy);
  transition: all .22s ease;
}

.njb-research-chip:hover {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(135deg, var(--njb-navy), var(--njb-navy-light));
  transform: translateY(-2px);
}

/* ---------- Publication / Archive ---------- */
.njb-filter-bar {
  background: var(--njb-paper);
  border: 1px solid var(--njb-line);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  box-shadow: var(--shadow-soft);
}

.njb-empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--njb-muted);
}

/* ---------- Board member card ---------- */
.njb-board-card {
  background: var(--njb-paper);
  border: 1px solid var(--njb-line);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  height: 100%;
  transition: all .25s ease;
}

.njb-board-card:hover {
  border-color: var(--njb-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-soft);
}

.njb-board-card .avatar {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--njb-navy), var(--njb-navy-light));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.njb-board-card .role {
  color: var(--njb-gold);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.njb-board-card .aff {
  color: var(--njb-muted);
  font-size: 0.85rem;
}

/* ---------- Content / policy pages ---------- */
.njb-content {
  color: var(--njb-ink);
}

.njb-content p {
  margin-bottom: 1.1rem;
  color: #333d4d;
}

.njb-content h2 {
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.njb-content h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.8rem;
  font-size: 1.2rem;
}

.njb-content ul,
.njb-content ol {
  margin-bottom: 1.1rem;
  color: #333d4d;
}

.njb-content li {
  margin-bottom: 0.5rem;
}

.njb-content strong {
  color: var(--njb-navy);
}

.njb-page-header {
  background: linear-gradient(160deg, var(--njb-navy-deep) 0%, var(--njb-navy) 100%);
  color: #fff;
  padding: 2.75rem 0;
  position: relative;
  overflow: hidden;
}

.njb-page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(600px 260px at 90% -20%, rgba(217, 175, 99, 0.22), transparent 60%);
}

.njb-page-header .njb-breadcrumb {
  position: relative;
  z-index: 2;
  font-size: 0.83rem;
  color: #B9C4D6;
}

.njb-page-header .njb-breadcrumb a {
  color: #C7D2E3;
}

.njb-page-header .njb-breadcrumb a:hover {
  color: var(--njb-gold-light);
}

.njb-page-header h1 {
  position: relative;
  z-index: 2;
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0.35rem 0 0;
}

/* ---------- Sidebar widgets ---------- */
.njb-widget {
  background: var(--njb-paper);
  border: 1px solid var(--njb-line);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-soft);
}

.njb-widget h6 {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.72rem;
  color: var(--njb-gold);
  font-weight: 700;
  margin-bottom: 1rem;
}

/* ---------- Quote / editor block ---------- */
.njb-editor-quote {
  background: linear-gradient(160deg, var(--njb-navy-deep), var(--njb-navy));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  position: relative;
}

.njb-editor-quote .quote-mark {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--njb-gold-light);
  line-height: 0.5;
  opacity: 0.8;
}

/* ---------- Footer ---------- */
.njb-footer {
  background: #162020;
  color: #A9B6CB;
  padding: 4rem 0 1.5rem;
  font-size: 0.9rem;
}

.njb-footer h6 {
  color: #fff;
  font-family: var(--font-body);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 1rem;
  letter-spacing: 0.06em;
  margin-bottom: 1.1rem;
}

.njb-footer a {
  color: #A9B6CB;
}

.njb-footer a:hover {
  color: var(--njb-gold-light);
}

.njb-footer .njb-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  font-size: 0.8rem;
  color: #7C8AA3;
}

.njb-back-to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  background: var(--njb-navy);
  color: #fff;
  font: inherit;
  cursor: pointer;
  box-shadow: var(--shadow-lift);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(0.5rem);
  transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease, opacity .2s ease, visibility .2s ease;
}

.njb-back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.njb-back-to-top:hover {
  border-color: var(--njb-gold-light);
  background: var(--njb-navy-light);
  color: #fff;
  transform: translateY(-2px);
}

@media (max-width: 575.98px) {
  .njb-back-to-top {
    right: 1rem;
    bottom: 1rem;
  }
}

/* ---------- Scroll reveal ---------- */
.njb-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}

.njb-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Utility ---------- */
.text-njb-navy {
  color: var(--njb-navy) !important;
}

.text-njb-gold {
  color: var(--njb-gold) !important;
}

.bg-njb-warm {
  background: var(--njb-bg-warm) !important;
}

.njb-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--njb-line), transparent);
  border: none;
  margin: 3rem 0;
}

@media (max-width: 767px) {
  .njb-hero {
    padding: 3.5rem 0 3.5rem;
  }

  .njb-section {
    padding: 3.25rem 0;
  }
}

/* ---------- Issue cards with cover image (Publication cards) ---------- */
.njb-issue-card {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 1.1rem 1.1rem 3rem;
  background: var(--njb-paper);
  border: 1px solid var(--njb-line);
  border-radius: 16px;
  text-decoration: none;
  color: inherit;
  transition: transform .25s ease, box-shadow .25s ease;
}

.njb-issue-card:hover {
  color: inherit;
  transform: translateY(-4px);
   border: 1px solid var(--njb-gold-light);
  box-shadow: 0 14px 34px rgba(17, 100, 70, 0.16);
}

.njb-issue-card .issue-cover {
  border-radius: 14px;
  overflow: hidden;
  background: #EEF3F0;
  box-shadow: 0 6px 18px rgba(23, 38, 24, 0.14);
  margin-bottom: 1.5rem;
  aspect-ratio: 3 / 4;
}

.njb-issue-card .issue-cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.njb-issue-card .issue-cover-empty {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  color: var(--njb-navy);
  font-size: .85rem;
}

.njb-issue-card .issue-cover-empty i {
  font-size: 2.6rem;
}

.njb-issue-card .issue-title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1.2rem;
  line-height: 1.25;
  color: var(--njb-navy);
  margin-bottom: .5rem;
}

.njb-issue-card .issue-period {
  color: var(--njb-muted);
  font-size: 1rem;
}

.njb-issue-card .issue-download {
  position: absolute;
  right: 1.5rem;
  bottom: 1.1rem;
  font-size: 1.2rem;
  color: var(--njb-navy);
  opacity: .75;
  transition: opacity .2s ease, transform .2s ease;
}

.njb-issue-card:hover .issue-download {
  opacity: 1;
  transform: translateY(2px);
}