/* ==========================================================================
   SciEtech Modern Global Redesign CSS
   ========================================================================== */

/* 1. Design Tokens (Variables) */
:root {
  /* Brand Colors extracted from legacy CSS and modernized */
  --color-primary: #0891b2; /* Modern Teal/Cyan */
  --color-primary-light: #06b6d4;
  --color-primary-dark: #164e63;
  
  --color-accent: #e11d48; /* Modern Red */
  --color-accent-light: #f43f5e;
  
  --color-secondary: #16a34a; /* Modern Green */
  
  /* Neutral Colors */
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text-main: #0f172a;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  
  /* Typography */
  --font-family-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-family-heading: 'Outfit', 'Inter', system-ui, sans-serif;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-pill: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* 2. Global Resets & Base Styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
  background-color: var(--color-text-main);
}

body,
body.modern-body {
  margin: 0 !important;
  padding: 0 !important;
  width: 100%;
  max-width: 100%;
  font-family: var(--font-family-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Kill ShareThis / third-party body padding that creates footer gaps */
body[style],
html body {
  padding-bottom: 0 !important;
  margin-bottom: 0 !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
}

#page.site {
  margin: 0;
  padding: 0;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.2;
  margin-top: 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-light);
}

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

/* 3. Utilities */
.glass-panel {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-glass);
}

.text-gradient {
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-image: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}

.text-gradient-accent {
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-image: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
}

/* 4. Buttons */
.btn-modern {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-family-sans);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-pill);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: none;
  text-decoration: none;
}

.btn-modern--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff !important;
  box-shadow: 0 4px 14px 0 rgba(8, 145, 178, 0.39);
}

.btn-modern--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(8, 145, 178, 0.23);
  color: #fff;
}

.btn-modern--accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: #fff !important;
  box-shadow: 0 4px 14px 0 rgba(225, 29, 72, 0.39);
}

.btn-modern--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(225, 29, 72, 0.23);
  color: #fff;
}

.btn-modern--outline {
  background: transparent;
  color: var(--color-primary) !important;
  border: 2px solid var(--color-primary);
}

.btn-modern--outline:hover {
  background: var(--color-primary);
  color: #fff !important;
}

/* 5. Header Redesign (Overrides header2.php) */
.site-header {
  position: relative;
  z-index: 1000;
}

.header-top-modern {
  background-color: var(--color-text-main);
  color: #fff;
  padding: 0.5rem 0;
  font-size: 0.875rem;
}

.header-top-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.header-top-modern .contact-info {
  display: flex;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.header-top-modern .contact-info li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #cbd5e1;
}

.header-top-modern .social-menu {
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.header-top-modern .social-menu a {
  color: #cbd5e1;
  transition: color var(--transition-fast);
}

.header-top-modern .social-menu a:hover {
  color: var(--color-primary-light);
}

.header-bottom-modern {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 0;
  transition: all var(--transition-normal);
}

.site-header-nav-wrap {
  position: sticky;
  top: 0;
  z-index: 1001;
}

.header-bottom-modern .tg-container,
.header-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  gap: 1rem;
  position: relative;
  min-height: 48px;
}

.header-bottom-modern .logo-image img {
  max-height: 40px;
}

/* Desktop navigation aligned in the sticky header bar */
@media (min-width: 1101px) {
  .site-header-nav-wrap {
    position: sticky;
  }

  .main-navigation-modern {
    position: absolute;
    top: 50%;
    right: max(1.5rem, calc((100vw - 1200px) / 2 + 1.5rem));
    transform: translateY(-50%);
    z-index: 2;
  }

  .nav-toggle-modern {
    display: none !important;
  }
}

.main-navigation-modern ul {
  display: flex;
  gap: 1.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
  align-items: center;
  flex-wrap: wrap;
}

.main-navigation-modern > ul > li {
  position: relative;
}

.main-navigation-modern > ul > li > a {
  font-family: var(--font-family-heading);
  font-weight: 600;
  color: var(--color-text-main);
  text-transform: capitalize;
  padding: 0.5rem 0;
  display: block;
  white-space: nowrap;
}

.main-navigation-modern > ul > li > a:hover,
.main-navigation-modern > ul > li.active > a {
  color: var(--color-primary);
}

/* Dropdown */
.main-navigation-modern ul.sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-surface);
  min-width: 200px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0.5rem 0;
}

.main-navigation-modern > ul > li:hover > ul.sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.main-navigation-modern ul.sub-menu li a {
  padding: 0.75rem 1.5rem;
  color: var(--color-text-muted);
  font-weight: 500;
  display: block;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.main-navigation-modern ul.sub-menu li a:hover {
  background: var(--color-bg);
  color: var(--color-primary);
}

/* 6. Footer Redesign */
.footer-modern {
  background-color: var(--color-text-main);
  color: #fff;
  padding: 4rem 0 0 0;
  margin: 0;
  width: 100%;
  max-width: 100%;
}

.footer-modern .widget-title {
  color: #fff;
  font-family: var(--font-family-heading);
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  position: relative;
  padding-bottom: 0.75rem;
}

.footer-modern .widget-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
}

.footer-modern a {
  color: #cbd5e1;
  transition: color var(--transition-fast);
}

.footer-modern a:hover {
  color: var(--color-primary-light);
  padding-left: 0.25rem;
}

.footer-modern .footer-bottom {
  background-color: rgba(0, 0, 0, 0.2);
  padding: 1.5rem 0;
  margin: 3rem 0 0 0;
  text-align: center;
  color: #94a3b8;
  font-size: 0.875rem;
  width: 100%;
}

.footer-modern .footer-bottom p {
  margin: 0;
  padding: 0;
}

/* Newsletter Block */
.newsletter-modern {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: 4rem 0;
  color: #fff;
  text-align: center;
  margin: 0;
  width: 100%;
}

.newsletter-modern h2 {
  color: #fff;
  margin-bottom: 1rem;
}

.newsletter-modern .news-input {
  border: none;
  padding: 1rem 1.5rem;
  border-radius: var(--radius-pill) 0 0 var(--radius-pill);
  width: 100%;
  max-width: 400px;
  outline: none;
  font-family: var(--font-family-sans);
}

.newsletter-modern .news-btn {
  background: var(--color-accent);
  color: #fff;
  border: none;
  padding: 1rem 2rem;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.newsletter-modern .news-btn:hover {
  background: var(--color-accent-light);
}

/* 7. Utilities & Helpers */
.section-modern {
  padding: 5rem 0;
}

.section-modern--bg {
  background-color: var(--color-surface);
}

.section-title-modern {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title-modern .badge {
  display: inline-block;
  padding: 0.25rem 1rem;
  background: rgba(8, 145, 178, 0.1);
  color: var(--color-primary);
  font-weight: 600;
  border-radius: var(--radius-pill);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-title-modern h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.section-title-modern p {
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.125rem;
}

/* Flex Grid Helpers */
.modern-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* 8. Layout container */
.tg-container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.site-logo-img {
  max-height: 40px;
  width: auto;
  display: block;
}

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

/* 9. Form & table primitives (Bootstrap-compatible, design-system styled) */
.form-control,
.form-select,
select.form-control,
input.form-control,
textarea.form-control {
  display: block;
  width: 100%;
  padding: 0.7rem 0.95rem;
  font-family: var(--font-family-sans);
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text-main);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus,
select.form-control:focus,
textarea.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.15);
}

.form-control.input-sm {
  padding: 0.45rem 0.7rem;
  font-size: 0.875rem;
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-text-main);
  margin-bottom: 0.4rem;
}

.btn,
.btn-primary,
.btn-default,
.btn-success,
.btn-danger,
.btn-xs,
.btn-sm,
.btn-block {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  font-family: var(--font-family-sans);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none !important;
  transition: all var(--transition-fast);
  line-height: 1.3;
  white-space: nowrap;
}

.btn,
.btn-default {
  padding: 0.55rem 1rem;
  background: var(--color-surface);
  color: var(--color-text-main) !important;
  border-color: var(--color-border);
}

.btn:hover,
.btn-default:hover {
  background: var(--color-bg);
  color: var(--color-primary) !important;
  border-color: var(--color-primary);
}

.btn-primary {
  padding: 0.55rem 1rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff !important;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(8, 145, 178, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  color: #fff !important;
}

.btn-success {
  padding: 0.55rem 1rem;
  background: var(--color-secondary);
  color: #fff !important;
}

.btn-danger {
  padding: 0.55rem 1rem;
  background: var(--color-accent);
  color: #fff !important;
}

.btn-sm,
.btn-xs {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
  display: flex;
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none !important;
}

.table-responsive,
.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
  font-size: 0.925rem;
  background: var(--color-surface);
}

.table th,
.table td {
  padding: 0.9rem 1rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-border);
}

.table thead th {
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
  white-space: nowrap;
}

.table tbody tr:hover {
  background: rgba(8, 145, 178, 0.04);
}

.table-bordered th,
.table-bordered td {
  border: 1px solid var(--color-border);
}

.alert {
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
  border: 1px solid transparent;
}

.alert-info {
  background: rgba(8, 145, 178, 0.1);
  color: var(--color-primary-dark);
  border-color: rgba(8, 145, 178, 0.2);
}

.alert-danger,
.custom-alert {
  background: rgba(225, 29, 72, 0.08);
  color: #9f1239;
  border-color: rgba(225, 29, 72, 0.2);
}

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

/* Bootstrap-ish grid used on profile forms */
.row {
  display: flex;
  flex-wrap: wrap;
  margin-left: -0.5rem;
  margin-right: -0.5rem;
}

.row > [class*="col-"] {
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  width: 100%;
}

@media (min-width: 768px) {
  .col-md-2 { width: 16.666%; }
  .col-md-3 { width: 25%; }
  .col-md-4 { width: 33.333%; }
  .col-md-6 { width: 50%; }
  .col-md-8 { width: 66.666%; }
  .col-md-12 { width: 100%; }
}

/* 10. Modal (Bootstrap 3-compatible markup) */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  overflow-x: hidden;
  overflow-y: auto;
  outline: 0;
}

.modal.in,
.modal.show {
  display: block;
}

.modal-dialog {
  position: relative;
  width: auto;
  margin: 1.25rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  transform: translateY(12px);
  transition: transform var(--transition-normal);
}

.modal.in .modal-dialog,
.modal.show .modal-dialog {
  transform: translateY(0);
}

.modal-content {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  outline: 0;
  overflow: visible;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.modal-title {
  margin: 0;
  font-size: 1.15rem;
  font-family: var(--font-family-heading);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 1.5rem 1.25rem;
  border-top: 1px solid var(--color-border);
}

.modal .close {
  background: transparent;
  border: 0;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1990;
  background: rgba(15, 23, 42, 0.55);
}

.modal-backdrop.fade {
  opacity: 0;
}

.modal-backdrop.in,
.modal-backdrop.show {
  opacity: 1;
}

body.modal-open {
  overflow: hidden;
}

/* 11. Header / mobile navigation */
.nav-toggle-modern {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  cursor: pointer;
  z-index: 1002;
}

.nav-toggle-modern__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-main);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

body.nav-open .nav-toggle-modern__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

body.nav-open .nav-toggle-modern__bar:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle-modern__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay-modern {
  display: none;
}

.nav-account-btn {
  display: inline-flex !important;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem !important;
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-pill);
  color: var(--color-primary) !important;
}

.nav-login-btn {
  padding: 0.45rem 1.25rem !important;
  color: #fff !important;
}

.main-navigation-modern > ul {
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

@media (max-width: 1100px) {
  .header-top-modern {
    display: none;
  }

  .header-bottom-modern {
    position: relative;
    z-index: 1002;
    /* Avoid containing-block issues for any fixed children */
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: #fff;
  }

  .nav-toggle-modern {
    display: flex;
    position: relative;
    z-index: 1003;
  }

  .main-navigation-modern {
    position: fixed !important;
    top: 0;
    right: 0;
    left: auto;
    bottom: 0;
    width: min(320px, 86vw);
    height: 100vh;
    height: 100dvh;
    max-width: 100vw;
    background: var(--color-surface);
    box-shadow: -8px 0 32px rgba(15, 23, 42, 0.12);
    padding: 5rem 1.25rem 2rem;
    overflow-x: hidden;
    overflow-y: auto;
    transform: translate3d(100%, 0, 0) !important;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), visibility 0.3s;
    z-index: 1004;
  }

  body.nav-open {
    overflow: hidden !important;
    touch-action: none;
  }

  body.nav-open .main-navigation-modern {
    transform: translate3d(0, 0, 0) !important;
    visibility: visible;
    pointer-events: auto;
  }

  .main-navigation-modern > ul {
    flex-direction: column;
    align-items: stretch;
    flex-wrap: nowrap;
    gap: 0.25rem;
  }

  .main-navigation-modern > ul > li > a {
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
    white-space: normal;
  }

  .main-navigation-modern ul.sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    background: var(--color-bg);
    display: none;
    min-width: 0;
    padding: 0.25rem 0 0.5rem 0.75rem;
    margin-top: 0.15rem;
    border-radius: var(--radius-md);
  }

  .main-navigation-modern > ul > li.is-open > ul.sub-menu {
    display: flex;
  }

  .main-navigation-modern > ul > li:hover > ul.sub-menu {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .main-navigation-modern > ul > li:not(.is-open):hover > ul.sub-menu {
    display: none;
  }

  .nav-overlay-modern {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    z-index: 1003;
  }

  .nav-overlay-modern[hidden] {
    display: none !important;
  }

  .nav-account-btn,
  .nav-login-btn {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .section-modern {
    padding: 3rem 0;
  }

  .section-title-modern h2 {
    font-size: 1.85rem;
  }

  .section-title-modern p {
    font-size: 1rem;
  }

  .modern-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .newsletter-modern {
    padding: 2.5rem 0;
  }

  .newsletter-modern form > div {
    flex-direction: column !important;
  }

  .newsletter-modern .news-input,
  .newsletter-modern .news-btn {
    border-radius: var(--radius-pill) !important;
    width: 100%;
    max-width: none;
  }

  .newsletter-modern .news-btn {
    margin-top: 0.75rem;
  }

  .scietech-share-rail {
    top: auto;
    bottom: 16px;
    transform: none;
    left: 12px;
    padding: 10px 8px;
    gap: 6px;
  }

  .scietech-share-rail__label {
    font-size: 9px;
  }

  .scietech-share-rail__link {
    width: 34px;
    height: 34px;
    font-size: 0.9rem;
  }

  #scroll-up {
    right: 16px;
    bottom: 16px;
  }
}

@media (max-width: 576px) {
  .tg-container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .header-bar-inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .hero-modern .btn-modern,
  .section-modern .cta-row .btn-modern {
    width: 100%;
  }

  .scietech-share-rail {
    top: auto;
    bottom: 72px;
    transform: none;
    left: 8px;
    padding: 8px 6px;
  }
}

/* 12. Floating UI — left social share rail */
.scietech-share-rail {
  position: fixed;
  left: 20px;
  top: 50%;
  bottom: auto;
  transform: translateY(-50%);
  z-index: 990;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 10px;
  background: #fff;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.scietech-share-rail__label {
  margin: 0;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
}

.scietech-share-rail__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.scietech-share-rail__link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-bg);
  color: var(--color-text-main) !important;
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  text-decoration: none !important;
  font-size: 1rem;
}

.scietech-share-rail__link:hover {
  background: var(--color-primary);
  color: #fff !important;
  transform: translateY(-2px);
}

.scietech-share-rail__link--facebook:hover { background: #1877f2; }
.scietech-share-rail__link--twitter:hover { background: #1da1f2; }
.scietech-share-rail__link--linkedin:hover { background: #0a66c2; }
.scietech-share-rail__link--whatsapp:hover { background: #25d366; }

/* ShareThis widgets rendered inside the rail stay in normal flow */
.scietech-share-rail .sharethis-sticky-share-buttons,
.scietech-share-rail .st-sticky-share-buttons,
.scietech-share-rail [class*="st-"] {
  position: static !important;
  left: auto !important;
  top: auto !important;
  transform: none !important;
}

#scroll-up {
  position: fixed;
  right: 24px;
  bottom: 28px;
  z-index: 998;
  background: var(--color-primary);
  color: #fff !important;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: var(--shadow-md);
  transition: background var(--transition-fast), transform var(--transition-fast);
}

#scroll-up:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  color: #fff !important;
}

/* Global Button Contrast Safeguard: Ensure white/light hover backgrounds always have dark visible text */
.btn-modern--outline:hover,
.btn-modern--outline:focus,
.btn-default:hover,
.btn-default:focus,
.btn-outline:hover,
.btn-outline:focus,
button.btn-default:hover,
a.btn-default:hover,
.btn-secondary:hover {
  background: #ffffff !important;
  border-color: var(--color-primary) !important;
  color: var(--color-primary) !important;
}