/* ============================================================
   IJBRS – Health Sciences Theme CSS v3.2 (Mobile Fixed)
   CIBREST | ISSN 3092-8885
   Green: #1a6b3a | Dark: #0d3d20 | Gold: #c8a96e
   ============================================================ */

/* ============================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  --ijbrs-green: #1a6b3a;
  --ijbrs-green-dark: #0d3d20;
  --ijbrs-gold: #c8a96e;
  --ijbrs-gold-light: #d4b87a;
  --ijbrs-white: #ffffff;
  --ijbrs-black: #222222;
  --ijbrs-gray-100: #f7f7f4;
  --ijbrs-gray-200: #f0f0ec;
  --ijbrs-gray-300: #e5e5dc;
  --ijbrs-gray-400: #e8e8e0;
  --ijbrs-gray-500: #dddddd;
  --ijbrs-gray-600: #cccccc;
  --ijbrs-gray-700: #555555;
  --ijbrs-logo-height: 180px;
  --ijbrs-logo-height-lg: 150px;
  --ijbrs-logo-height-md: 120px;
  --ijbrs-logo-height-sm: 90px;
  --ijbrs-font-serif: Georgia, "Times New Roman", serif;
  --ijbrs-font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --ijbrs-space-xs: 0.25rem;
  --ijbrs-space-sm: 0.5rem;
  --ijbrs-space-md: 1rem;
  --ijbrs-space-lg: 1.5rem;
  --ijbrs-space-xl: 2rem;
  --ijbrs-space-2xl: 3rem;
  --ijbrs-transition-fast: 150ms ease;
  --ijbrs-transition-base: 250ms ease;
  --ijbrs-transition-slow: 350ms ease;
  --ijbrs-shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --ijbrs-shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --ijbrs-shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
  --ijbrs-z-dropdown: 1000;
  --ijbrs-z-sticky: 1020;
  --ijbrs-z-fixed: 1030;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--ijbrs-font-serif);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ijbrs-black);
  background-color: var(--ijbrs-white);
  margin: 0;
  padding: 0;
  overflow-x: hidden; /* MOBILE FIX: prevent horizontal scroll */
}

/* ============================================================
   GLOBAL MOBILE OVERFLOW FIX
   ============================================================ */
html, body {
  max-width: 100%;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ijbrs-font-serif);
  color: var(--ijbrs-green-dark);
  font-weight: 600;
  line-height: 1.3;
  margin-top: 0;
  margin-bottom: var(--ijbrs-space-md);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

a {
  color: var(--ijbrs-green);
  text-decoration: none;
  transition: color var(--ijbrs-transition-fast), background-color var(--ijbrs-transition-fast);
  cursor: pointer;
}

a:hover, a:focus {
  color: var(--ijbrs-green-dark);
  text-decoration: underline;
  outline: none;
}

a:focus-visible {
  outline: 2px solid var(--ijbrs-gold);
  outline-offset: 2px;
}

/* ============================================================
   MAIN HEADER
   ============================================================ */
.main-header {
  background: var(--ijbrs-white);
  border-bottom: 4px solid var(--ijbrs-green);
  box-shadow: var(--ijbrs-shadow-md);
  position: relative;
  z-index: var(--ijbrs-z-sticky);
  padding-top: var(--ijbrs-space-xl);
  width: 100%;
  overflow: hidden; /* MOBILE FIX */
}

.main-header__container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--ijbrs-space-xl);
  position: relative;
}

/* ============================================================
   LOGO
   ============================================================ */
.navbar-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--ijbrs-space-lg) 0 var(--ijbrs-space-xl);
  position: relative;
}

.navbar-logo__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: transform var(--ijbrs-transition-base);
  padding: var(--ijbrs-space-md);
  max-width: 100%; /* MOBILE FIX */
}

.navbar-logo__link:hover,
.navbar-logo__link:focus {
  transform: scale(1.03);
  text-decoration: none;
}

.navbar-logo__image {
  height: var(--ijbrs-logo-height);
  width: auto;
  max-width: 100%;
  display: block;
  object-fit: contain;
}

.navbar-logo__wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--ijbrs-space-sm);
  max-width: 100%; /* MOBILE FIX */
}

.navbar-logo__subtitle {
  font-family: var(--ijbrs-font-sans);
  font-size: 0.875rem;
  color: var(--ijbrs-gray-700);
  letter-spacing: 2px;
  text-transform: uppercase;
}

@media (max-width: 1200px) {
  .navbar-logo__image { height: var(--ijbrs-logo-height-lg); }
}

@media (max-width: 991px) {
  .main-header { padding-top: var(--ijbrs-space-lg); }
  .navbar-logo__image { height: var(--ijbrs-logo-height-md); }
  .navbar-logo { padding: var(--ijbrs-space-md) 0 var(--ijbrs-space-lg); }
}

@media (max-width: 767px) {
  .main-header__container { padding: 0 var(--ijbrs-space-md); }
  .navbar-logo__image { height: var(--ijbrs-logo-height-sm); }
  .navbar-logo { padding: var(--ijbrs-space-sm) 0 var(--ijbrs-space-md); }
}

/* ============================================================
   USER NAVIGATION
   ============================================================ */
#userNav {
  position: absolute;
  top: var(--ijbrs-space-lg);
  right: var(--ijbrs-space-xl);
  display: flex;
  gap: var(--ijbrs-space-sm);
  z-index: var(--ijbrs-z-dropdown);
}

#userNav .nav-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: var(--ijbrs-space-sm) var(--ijbrs-space-md);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--ijbrs-green);
  background: var(--ijbrs-white);
  border: 2px solid var(--ijbrs-green);
  border-radius: 4px;
  transition: all var(--ijbrs-transition-fast);
  position: relative;
  overflow: hidden;
  box-shadow: var(--ijbrs-shadow-sm);
}

#userNav .nav-link::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: var(--ijbrs-green);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--ijbrs-transition-base);
  z-index: -1;
}

#userNav .nav-link:hover,
#userNav .nav-link:focus {
  color: var(--ijbrs-white);
  border-color: var(--ijbrs-green);
  text-decoration: none;
  box-shadow: var(--ijbrs-shadow-md);
}

#userNav .nav-link:hover::before,
#userNav .nav-link:focus::before {
  transform: scaleX(1);
  transform-origin: left;
}

/* MOBILE FIX: move userNav out of absolute so it doesn't overflow */
@media (max-width: 767px) {
  #userNav {
    position: static;
    justify-content: center;
    padding: var(--ijbrs-space-md) 0;
    border-top: 1px solid var(--ijbrs-gray-300);
    background: var(--ijbrs-gray-100);
    flex-wrap: wrap; /* MOBILE FIX: allow wrapping on very small screens */
    width: 100%;
  }

  #userNav .nav-link {
    font-size: 0.75rem;
    padding: var(--ijbrs-space-sm);
    min-height: 36px;
  }
}

/* ============================================================
   PRIMARY NAVIGATION
   ============================================================ */
#primaryNav {
  background: var(--ijbrs-green);
  border-top: 3px solid var(--ijbrs-gold);
  border-bottom: 3px solid var(--ijbrs-green-dark);
  display: flex;
  justify-content: center;
  align-items: stretch;
  width: 100%; /* MOBILE FIX */
}

#primaryNav .navbar-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%; /* MOBILE FIX */
}

#primaryNav .nav-item {
  position: relative;
}

#primaryNav .nav-link {
  display: flex;
  align-items: center;
  min-height: 56px;
  padding: var(--ijbrs-space-md) var(--ijbrs-space-xl);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ijbrs-white);
  background: transparent;
  border: none;
  border-right: 1px solid rgba(200, 169, 110, 0.25);
  transition: all var(--ijbrs-transition-fast);
  position: relative;
  cursor: pointer;
  white-space: nowrap; /* MOBILE FIX */
}

#primaryNav .nav-link::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 3px;
  background: var(--ijbrs-gold);
  transform: scaleX(0);
  transition: transform var(--ijbrs-transition-base);
}

#primaryNav .nav-link:hover,
#primaryNav .nav-link:focus {
  background: var(--ijbrs-green-dark);
  color: var(--ijbrs-gold);
  text-decoration: none;
}

#primaryNav .nav-link:hover::after,
#primaryNav .nav-link:focus::after { transform: scaleX(1); }

#primaryNav .nav-item.active .nav-link,
#primaryNav .nav-item .nav-link.active {
  background: var(--ijbrs-green-dark);
  color: var(--ijbrs-gold);
}

#primaryNav .nav-item.active .nav-link::after,
#primaryNav .nav-item .nav-link.active::after { transform: scaleX(1); }

#primaryNav .nav-item:last-child .nav-link { border-right: none; }

/* ============================================================
   DROPDOWN MENUS
   ============================================================ */
#primaryNav .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%; left: 0;
  min-width: 220px;
  background: var(--ijbrs-green-dark);
  border: none;
  border-top: 3px solid var(--ijbrs-gold);
  border-radius: 0 0 4px 4px;
  box-shadow: var(--ijbrs-shadow-lg);
  padding: var(--ijbrs-space-sm) 0;
  margin: 0;
  list-style: none;
  z-index: var(--ijbrs-z-dropdown);
}

#primaryNav .dropdown-menu.show,
#primaryNav .nav-item:hover .dropdown-menu,
#primaryNav .nav-item:focus-within .dropdown-menu { display: block; }

#primaryNav .dropdown-item {
  display: block;
  padding: var(--ijbrs-space-md) var(--ijbrs-space-lg);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.875rem;
  color: var(--ijbrs-white);
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
  transition: all var(--ijbrs-transition-fast);
  position: relative;
}

#primaryNav .dropdown-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0;
  height: 100%; width: 3px;
  background: var(--ijbrs-gold);
  transform: scaleY(0);
  transition: transform var(--ijbrs-transition-fast);
}

#primaryNav .dropdown-item:hover,
#primaryNav .dropdown-item:focus {
  color: var(--ijbrs-gold);
  background: rgba(200, 169, 110, 0.1);
  text-decoration: none;
  padding-left: calc(var(--ijbrs-space-lg) + 4px);
}

#primaryNav .dropdown-item:hover::before,
#primaryNav .dropdown-item:focus::before { transform: scaleY(1); }

#primaryNav .dropdown-toggle::after {
  content: '▼';
  font-size: 0.625rem;
  margin-left: var(--ijbrs-space-sm);
  transition: transform var(--ijbrs-transition-fast);
}

#primaryNav .dropdown-toggle:hover::after,
#primaryNav .dropdown-toggle[aria-expanded="true"]::after { transform: rotate(180deg); }

/* ============================================================
   HERO IMAGE
   ============================================================ */
.homepageImage, img.homepageImage {
  width: 100%;
  max-width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center;
  display: block;
}

@media (max-width: 991px) {
  .homepageImage, img.homepageImage { height: 320px; }
}

@media (max-width: 767px) {
  .homepageImage, img.homepageImage { height: 200px; }
}

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.pkp_structure_main {
  background: var(--ijbrs-white);
  padding: var(--ijbrs-space-2xl);
  max-width: 1400px;
  margin: 0 auto;
  width: 100%; /* MOBILE FIX */
  overflow-x: hidden; /* MOBILE FIX */
}

.pkp_page_index h2 {
  color: var(--ijbrs-green);
  border-bottom: 3px solid var(--ijbrs-gold);
  padding-bottom: var(--ijbrs-space-md);
  font-size: 1.5rem;
  margin-bottom: var(--ijbrs-space-xl);
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.pkp_structure_sidebar {
  background: var(--ijbrs-gray-100);
  padding: var(--ijbrs-space-xl);
  border-top: 4px solid var(--ijbrs-green);
}

.pkp_block {
  margin-bottom: var(--ijbrs-space-xl);
  padding-bottom: var(--ijbrs-space-lg);
  border-bottom: 1px solid var(--ijbrs-gray-300);
}

.pkp_block:last-child { border-bottom: none; }

.pkp_block h2,
.pkp_block .pkp_block_title {
  background: var(--ijbrs-green);
  color: var(--ijbrs-white);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: var(--ijbrs-space-md) var(--ijbrs-space-lg);
  margin: 0 0 var(--ijbrs-space-md);
  border-left: 4px solid var(--ijbrs-gold);
}

.pkp_block ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pkp_block ul li {
  padding: var(--ijbrs-space-sm) 0;
  border-bottom: 1px dotted var(--ijbrs-gray-500);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.875rem;
}

.pkp_block ul li:last-child { border-bottom: none; }

.pkp_block ul li a {
  display: block;
  color: var(--ijbrs-green);
  padding: var(--ijbrs-space-xs) 0;
  transition: all var(--ijbrs-transition-fast);
  position: relative;
}

.pkp_block ul li a::before {
  content: '›';
  position: absolute;
  left: -12px;
  opacity: 0;
  transition: all var(--ijbrs-transition-fast);
  color: var(--ijbrs-gold);
}

.pkp_block ul li a:hover,
.pkp_block ul li a:focus {
  color: var(--ijbrs-gold);
  text-decoration: none;
  padding-left: var(--ijbrs-space-md);
}

.pkp_block ul li a:hover::before,
.pkp_block ul li a:focus::before { opacity: 1; left: 0; }

/* ============================================================
   ARTICLES
   ============================================================ */
.obj_article_summary {
  border-left: 4px solid var(--ijbrs-green);
  padding: var(--ijbrs-space-lg);
  margin-bottom: var(--ijbrs-space-xl);
  background: var(--ijbrs-gray-100);
  border-bottom: 1px solid var(--ijbrs-gray-400);
  border-radius: 0 4px 4px 0;
  transition: all var(--ijbrs-transition-base);
}

.obj_article_summary:hover {
  box-shadow: var(--ijbrs-shadow-md);
  transform: translateX(4px);
}

.obj_article_summary .title a {
  display: inline-block;
  color: var(--ijbrs-green-dark);
  font-family: var(--ijbrs-font-serif);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.4;
  padding: var(--ijbrs-space-xs) 0;
  position: relative;
}

.obj_article_summary .title a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--ijbrs-gold);
  transition: width var(--ijbrs-transition-base);
}

.obj_article_summary .title a:hover,
.obj_article_summary .title a:focus {
  color: var(--ijbrs-green);
  text-decoration: none;
}

.obj_article_summary .title a:hover::after,
.obj_article_summary .title a:focus::after { width: 100%; }

.obj_article_summary .authors {
  color: var(--ijbrs-gray-700);
  font-size: 0.875rem;
  font-style: italic;
  font-family: var(--ijbrs-font-sans);
  margin-top: var(--ijbrs-space-sm);
}

/* ============================================================
   ISSUE TOC
   ============================================================ */
.obj_issue_toc .sections > li > .title {
  background: var(--ijbrs-green);
  color: var(--ijbrs-white);
  padding: var(--ijbrs-space-md) var(--ijbrs-space-lg);
  font-family: var(--ijbrs-font-serif);
  font-size: 1rem;
  font-weight: 600;
  border-left: 4px solid var(--ijbrs-gold);
  margin-bottom: var(--ijbrs-space-md);
  border-radius: 0 4px 4px 0;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary,
.pkp_button,
input[type="submit"],
button[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--ijbrs-space-sm) var(--ijbrs-space-lg);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--ijbrs-white);
  background: var(--ijbrs-green);
  border: 2px solid var(--ijbrs-green);
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--ijbrs-transition-fast);
  position: relative;
  overflow: hidden;
  max-width: 100%; /* MOBILE FIX */
}

.btn-primary:hover, .pkp_button:hover, input[type="submit"]:hover,
.btn-primary:focus, .pkp_button:focus, input[type="submit"]:focus {
  color: var(--ijbrs-gold);
  border-color: var(--ijbrs-green-dark);
  text-decoration: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.pkp_structure_footer_wrapper,
.pkp_structure_footer {
  background: var(--ijbrs-green-dark);
  border-top: 4px solid var(--ijbrs-gold);
  color: var(--ijbrs-gray-600);
  padding: var(--ijbrs-space-2xl);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.875rem;
  line-height: 1.8;
  text-align: center;
  width: 100%; /* MOBILE FIX */
}

.pkp_structure_footer a,
.pkp_footer_content a {
  color: var(--ijbrs-gold);
  text-decoration: none;
  padding: var(--ijbrs-space-xs) 0;
  border-bottom: 1px solid transparent;
  transition: all var(--ijbrs-transition-fast);
}

.pkp_structure_footer a:hover,
.pkp_footer_content a:hover {
  color: var(--ijbrs-white);
  border-bottom-color: var(--ijbrs-gold);
  text-decoration: none;
}

.pkp_footer_content {
  color: var(--ijbrs-gray-600);
  max-width: 800px;
  margin: 0 auto;
}

.pkp_brand_footer {
  border-top: 1px solid rgba(200, 169, 110, 0.3);
  padding-top: var(--ijbrs-space-lg);
  margin-top: var(--ijbrs-space-lg);
  opacity: 0.6;
}

/* ============================================================
   BREADCRUMBS
   ============================================================ */
.pkp_navigation_breadcrumbs {
  background: var(--ijbrs-gray-200);
  padding: var(--ijbrs-space-md) var(--ijbrs-space-xl);
  font-size: 0.8125rem;
  font-family: var(--ijbrs-font-sans);
  border-bottom: 1px solid var(--ijbrs-gray-500);
  overflow-x: auto; /* MOBILE FIX */
}

.pkp_navigation_breadcrumbs ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--ijbrs-space-sm);
}

.pkp_navigation_breadcrumbs li { display: flex; align-items: center; }

.pkp_navigation_breadcrumbs li:not(:last-child)::after {
  content: '/';
  margin-left: var(--ijbrs-space-sm);
  color: var(--ijbrs-gray-700);
}

.pkp_navigation_breadcrumbs a {
  color: var(--ijbrs-green);
  padding: var(--ijbrs-space-xs) var(--ijbrs-space-sm);
  border-radius: 2px;
  transition: all var(--ijbrs-transition-fast);
}

.pkp_navigation_breadcrumbs a:hover,
.pkp_navigation_breadcrumbs a:focus {
  color: var(--ijbrs-green-dark);
  background: rgba(26, 107, 58, 0.1);
  text-decoration: none;
}

/* ============================================================
   PAGE TITLES
   ============================================================ */
.page_title, h1.page_title {
  font-family: var(--ijbrs-font-serif);
  color: var(--ijbrs-green-dark);
  font-size: 2rem;
  border-bottom: 3px solid var(--ijbrs-green);
  padding-bottom: var(--ijbrs-space-md);
  margin-bottom: var(--ijbrs-space-xl);
}

.pkp_page_about h2 {
  color: var(--ijbrs-green);
  border-left: 4px solid var(--ijbrs-gold);
  padding-left: var(--ijbrs-space-md);
  font-size: 1.25rem;
}

/* ============================================================
   FORMS
   ============================================================ */
.form-control,
input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
  display: block;
  width: 100%;
  padding: var(--ijbrs-space-md);
  font-family: var(--ijbrs-font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ijbrs-black);
  background: var(--ijbrs-white);
  border: 2px solid var(--ijbrs-gray-300);
  border-radius: 4px;
  transition: all var(--ijbrs-transition-fast);
  max-width: 100%; /* MOBILE FIX */
}

.form-control:focus, input:focus, textarea:focus, select:focus {
  border-color: var(--ijbrs-green);
  box-shadow: 0 0 0 3px rgba(26, 107, 58, 0.15);
  outline: none;
}

label {
  display: block;
  margin-bottom: var(--ijbrs-space-sm);
  font-family: var(--ijbrs-font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ijbrs-green-dark);
}

/* ============================================================
   UTILITY
   ============================================================ */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* ============================================================
   RESPONSIVE – TABLET (max 991px)
   ============================================================ */
@media (max-width: 991px) {
  .main-header__container { padding: 0 var(--ijbrs-space-lg); }

  #primaryNav .nav-link {
    padding: var(--ijbrs-space-md) var(--ijbrs-space-lg);
    font-size: 0.75rem;
    letter-spacing: 1px;
  }

  .pkp_structure_main { padding: var(--ijbrs-space-xl); }
}

/* ============================================================
   RESPONSIVE – MOBILE (max 767px)  *** KEY FIXES HERE ***
   ============================================================ */
@media (max-width: 767px) {
  /* Container */
  .main-header__container { padding: 0 var(--ijbrs-space-md); }

  /* OJS wrapper fix */
  .pkp_structure_page,
  .pkp_structure_content,
  .pkp_structure_main_wrapper {
    width: 100% !important;
    max-width: 100% !important;
    overflow-x: hidden !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  /* Navigation: stack vertically */
  #primaryNav {
    flex-direction: column;
  }

  #primaryNav .navbar-nav {
    flex-direction: column;
    width: 100%;
  }

  #primaryNav .nav-link {
    padding: var(--ijbrs-space-md);
    font-size: 0.875rem;
    letter-spacing: 0.5px;
    border-right: none;
    border-bottom: 1px solid rgba(200, 169, 110, 0.2);
    justify-content: space-between;
    min-height: 48px; /* easier tap target */
  }

  #primaryNav .nav-link::after { display: none; }

  #primaryNav .dropdown-menu {
    position: static;
    width: 100%;
    box-shadow: none;
    border-top: 1px solid rgba(200, 169, 110, 0.2);
  }

  /* Content */
  .pkp_structure_main {
    padding: var(--ijbrs-space-md);
    width: 100%;
  }

  .pkp_structure_sidebar { padding: var(--ijbrs-space-lg); }

  .obj_article_summary {
    padding: var(--ijbrs-space-md);
    transform: none; /* disable hover slide on mobile */
  }

  /* Typography scale down */
  h1, .page_title { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  h3 { font-size: 1.125rem; }

  /* Footer */
  .pkp_structure_footer_wrapper,
  .pkp_structure_footer {
    padding: var(--ijbrs-space-xl) var(--ijbrs-space-md);
  }
}

/* ============================================================
   PRINT STYLES
   ============================================================ */
@media print {
  .main-header, #userNav, #primaryNav,
  .pkp_structure_sidebar, .pkp_structure_footer_wrapper { display: none; }
  .pkp_structure_main { max-width: 100%; padding: 0; }
  a[href]::after { content: " (" attr(href) ")"; font-size: 0.875rem; color: var(--ijbrs-gray-700); }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   HIGH CONTRAST
   ============================================================ */
@media (prefers-contrast: high) {
  :root {
    --ijbrs-green: #0d5c2e;
    --ijbrs-green-dark: #062a14;
    --ijbrs-gold: #a88b4a;
  }
  a:focus-visible, button:focus-visible, input:focus-visible {
    outline: 3px solid currentColor;
    outline-offset: 2px;
  }
}