/* ============================================================================
   Footer Components
   ============================================================================ */

.footer-anchor {
  display: block;
  color: #6b7280;
  transition:
    color 0.2s ease,
    opacity 0.2s ease;
  opacity: 0.8;
  font-size: 0.875rem;
}

.footer-anchor:hover {
  color: #059669;
  opacity: 1;
}

/* ============================================================================
   Academic Editorial Design System - "The Modern Scholar"
   Tailwind CSS v4 + Custom Design Tokens
   ============================================================================ */

@import url("https://fonts.googleapis.com/css2?family=Lexend:wght@300;400;500;600;700;800&display=swap");

/* ============================================================================
   Design Tokens - Single Source of Truth
   ============================================================================ */

:root {
  /* Brand Colors */
  --primary: #00450d;
  --on-primary: #ffffff;
  --primary-container: #1b5e20;
  --on-primary-container: #90d689;
  --primary-fixed: #acf4a4;
  --primary-fixed-dim: #91d78a;
  --on-primary-fixed: #002203;
  --on-primary-fixed-variant: #0c5216;
  --inverse-primary: #91d78a;

  --secondary: #5d5f5f;
  --on-secondary: #ffffff;
  --secondary-container: #dcdddd;
  --on-secondary-container: #5f6161;
  --secondary-fixed: #e2e2e2;
  --secondary-fixed-dim: #c6c6c7;
  --on-secondary-fixed: #1a1c1c;
  --on-secondary-fixed-variant: #454747;

  --tertiary: #6b1d3d;
  --on-tertiary: #ffffff;
  --tertiary-container: #883454;
  --on-tertiary-container: #ffaec6;
  --tertiary-fixed: #ffd9e2;
  --tertiary-fixed-dim: #ffb1c8;
  --on-tertiary-fixed: #3e001d;
  --on-tertiary-fixed-variant: #7a2949;

  --error: #ba1a1a;
  --on-error: #ffffff;
  --error-container: #ffdad6;
  --on-error-container: #93000a;

  /* Surface Hierarchy */
  --background: #f8f9fa;
  --on-background: #191c1d;
  --surface: #f8f9fa;
  --on-surface: #191c1d;
  --surface-variant: #e1e3e4;
  --on-surface-variant: #41493e;
  --surface-dim: #d9dadb;
  --surface-bright: #f8f9fa;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f3f4f5;
  --surface-container: #edeeef;
  --surface-container-high: #e7e8e9;
  --surface-container-highest: #e1e3e4;
  --inverse-surface: #2e3132;
  --inverse-on-surface: #f0f1f2;
  --surface-tint: #2a6b2c;

  /* Utility Colors */
  --outline: #717a6d;
  --outline-variant: #c0c9bb;
  --scrim: #000000;

  /* Font Family */
  --font-sans: "Lexend", system-ui, sans-serif;
  --font-headline: "Lexend", system-ui, sans-serif;
  --font-body: "Lexend", system-ui, sans-serif;

  /* Corner Radius */
  --radius-xs: 0.125rem;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1.5rem;
  --radius-2xl: 2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-ambient: 0 8px 24px rgba(25, 28, 29, 0.04);
  --shadow-ambient-strong: 0 12px 32px rgba(25, 28, 29, 0.08);
}

/* ============================================================================
   Base Styles
   ============================================================================ */

@layer base {
  html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-sans);
    color: var(--on-surface);
    background-color: var(--background);
    line-height: 1.6;
    margin: 0;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-family: var(--font-headline);
    color: var(--on-surface);
    line-height: 1.25;
    letter-spacing: -0.04em;
    margin-bottom: 1rem;
  }

  h1 {
    font-size: 4rem;
    font-weight: 800;
  }
  h2 {
    font-size: 2.5rem;
    font-weight: 700;
  }
  h3 {
    font-size: 1.75rem;
    font-weight: 700;
  }
  h4 {
    font-size: 1.5rem;
    font-weight: 600;
  }

  p {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--on-surface-variant);
    margin-bottom: 1.5rem;
  }

  a {
    color: var(--primary);
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  }

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

  button,
  input,
  textarea,
  select {
    font-family: inherit;
  }

  img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
  }
}

/* ============================================================================
   Component Styles
   ============================================================================ */

@layer components {
  /* ---- Navigation – Academic Editorial Redesigned ---- */
  #ttr_menu {
    background-color: rgba(255, 255, 255, 0.85); /* Slightly clearer glass */
    backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(0, 69, 13, 0.05); /* Very subtle primary border */
    box-shadow: var(--shadow-ambient);
  }

  .ttr_menu_logo a {
    font-family: var(--font-headline);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    color: var(--primary);
  }
  .ttr_menu_logo a:hover {
    color: var(--primary-container);
  }

  #navigationmenu {
    flex: 1 1 auto;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .menu-center {
    width: 100%;
    display: block !important;
    visibility: visible !important;
    height: auto !important;
  }

  .menu-center ul.nav,
  .menu-center ul.navbar-nav,
  .menu-center ul.ttr_menu_items {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2.5rem; /* Matches gap-10 from design */
    width: auto;
    margin: 0;
    list-style: none;
    padding: 0;
  }

  .menu-center .nav li,
  .menu-center .navbar-nav li,
  .menu-center .ttr_menu_items li {
    position: relative;
    list-style: none;
  }

  .menu-center .nav li a,
  .menu-center .navbar-nav li a,
  .menu-center .ttr_menu_items li a {
    padding: 0.5rem 0; /* Vertical padding only, gap handles horizontal */
    font-weight: 500;
    font-size: 1rem;
    color: #57534e; /* text-stone-600 equivalent */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: block;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    letter-spacing: -0.02em; /* DESIGN.MD mandate */
  }

  .menu-center .nav li a:hover,
  .menu-center .navbar-nav li a:hover,
  .menu-center .ttr_menu_items li a:hover {
    color: var(--primary-container); /* text-emerald-800 equivalent */
  }

  .menu-center .nav li a:active,
  .menu-center .navbar-nav li a:active,
  .menu-center .ttr_menu_items li a:active {
    transform: scale(0.98);
  }

  .menu-center .nav li.active > a,
  .menu-center .navbar-nav li.active > a,
  .menu-center .ttr_menu_items li.active > a,
  .menu-center .nav li.current > a,
  .menu-center .navbar-nav li.current > a,
  .menu-center .ttr_menu_items li.current > a {
    font-weight: 800; /* Increased to 800 per design-like bold */
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
  }

  .menuchildicon {
    display: none !important;
  }

  /* Mobile menu */
  .mobile-menu {
    display: none;
    padding-bottom: 1rem;
  }
  .mobile-menu.show {
    display: block;
  }
  .mobile-menu .nav,
  .mobile-menu .navbar-nav,
  .mobile-menu .ttr_menu_items {
    flex-direction: column;
    width: 100%;
    gap: 0.5rem;
  }
  .mobile-menu .nav li a,
  .mobile-menu .navbar-nav li a,
  .mobile-menu .ttr_menu_items li a {
    width: 100%;
    padding: 0.75rem 1rem;
  }

  /* Dropdown */
  .menu-center .dropdown-menu,
  .menu-center ul.dropdown-menu {
    padding: 0.5rem 0;
    min-width: 14rem;
    border-radius: 0.75rem;
    border: none;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow-ambient);
    overflow: hidden;
    margin-top: 0.5rem;
    position: absolute;
    display: none;
  }
  .menu-center .dropdown:hover > .dropdown-menu {
    display: block;
  }
  .dropdown-menu > li > a {
    display: block;
    padding: 0.5rem 1rem;
    font-weight: 500;
    line-height: 1.5;
    color: var(--on-surface);
    white-space: nowrap;
    transition:
      background-color 0.15s ease,
      color 0.15s ease,
      padding-left 0.15s ease;
    border-radius: 0.25rem;
    margin: 0 0.5rem;
  }
  .dropdown-menu > li > a:hover {
    background-color: rgba(0, 69, 13, 0.08);
    color: var(--primary);
    padding-left: 1.25rem;
  }

  /* ---- Layout Containers ---- */
  .container {
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
  }
  .container-fluid {
    width: 100%;
    padding: 0 1.5rem;
  }

  /* ---- Section spacing (DESIGN.MD: white space as a component, 6rem) ---- */
  .section {
    padding: 6rem 0;
  }
  .section-sm {
    padding: 3rem 0;
  }

  /* ---- Module position widget rows (compat) ---- */
  .ttr_module_row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin: 0 auto;
    padding: 0 1.5rem;
  }

  /* ---- Construction Banner ---- */
  .construction-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(
      135deg,
      var(--primary),
      var(--primary-container)
    );
    color: var(--on-primary);
    text-align: center;
    padding: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
  }

  /* ---- Back to top ---- */
  .totopshow {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
  }
  .back-to-top img {
    width: 40px;
    height: 40px;
    border-radius: 9999px;
    box-shadow: var(--shadow-ambient);
  }

  /* ============================================================================
     Footer - Modern Scholar Design
     ============================================================================ */

  /* Footer columns */
  .footer-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  /* Column headers - uppercase, bold, emerald */
  .footer-column > span:first-child,
  .footer-column h3:first-child,
  .footer-column .moduletitle {
    font-weight: 700;
    color: var(--primary);
    font-size: 0.875rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin: 0;
  }

  /* Navigation lists */
  .footer-column nav,
  .footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .footer-column li {
    margin: 0;
  }

  /* Footer links - stone gray with emerald hover */
  .footer-column a {
    color: var(--on-surface-variant);
    text-decoration: none;
    font-size: 0.875rem;
    line-height: 1.5;
    opacity: 0.8;
    transition: all 0.2s ease;
    display: inline-block;
  }

  .footer-column a:hover {
    color: var(--primary);
    opacity: 1;
  }

  /* ---- Content Area ---- */
  #ttr_page {
    max-width: 100%;
    padding: 0;
  }
  #ttr_content {
    width: 100%;
  }

  /* ---- Margin collapse spacers (legacy compat – make invisible) ---- */
  .margin_collapsetop {
    height: 0;
    overflow: hidden;
  }
}

/* ============================================================================
   Responsive – Tailwind v4 breakpoints via @media
   ============================================================================ */

@media (max-width: 768px) {
  .display-lg {
    font-size: 2.5rem;
  }
  .display-md {
    font-size: 2rem;
  }
  .display-sm {
    font-size: 1.75rem;
  }
  h1 {
    font-size: 1.75rem;
  }
  h2 {
    font-size: 1.5rem;
  }
  h3 {
    font-size: 1.25rem;
  }

  .ttr_menu_element_alignment {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 1rem;
  }
  .menu-center ul.navbar-nav {
    flex-direction: column;
    width: 100%;
    gap: 0.25rem;
  }
  .card {
    padding: 1.5rem;
  }
  .footer-widget-area_fixed {
    grid-template-columns: 1fr;
  }
  .ttr_module_row {
    grid-template-columns: 1fr;
  }

  /* Footer responsive adjustments */
  .footer-column h3,
  .footer-main-column h3,
  .footer-column .moduletitle,
  .footer-main-column .moduletitle {
    font-size: 1.125rem;
    margin-bottom: 1rem;
  }

  .footer-column a,
  .footer-main-column a {
    font-size: 0.875rem;
  }

  .ttr_footer_bottom_footer {
    padding: 1.5rem 0;
    margin-top: 2rem;
  }
}

@media (min-width: 768px) {
  .menu-center.navbar-collapse.nav-menu {
    display: block !important;
    visibility: visible !important;
    height: auto !important;
    overflow: visible !important;
  }
}

@media (min-width: 992px) {
  .ttr_menu_items.nav li:hover > ul.dropdown-menu {
    display: block;
    visibility: visible;
    opacity: 1;
  }
}

/* ============================================================================
   Navigation Menu Styles - Stitch Design
   ============================================================================ */

.material-symbols-outlined {
  font-variation-settings:
    "FILL" 0,
    "wght" 400,
    "GRAD" 0,
    "opsz" 24;
  display: inline-block;
  line-height: 1;
  vertical-align: middle;
}

/* Navigation Links */
.nav-link,
.nav-link-dropdown {
  color: rgb(82 82 91);
  font-weight: 500;
  transition: color 0.3s ease;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  height: 100%;
}

.nav-link:hover,
.nav-link-dropdown:hover {
  color: rgb(5 150 105);
  text-decoration: none;
}

.nav-link.active,
.nav-link-dropdown.active {
  color: rgb(4 120 87);
  font-weight: 700;
  border-bottom: 2px solid rgb(4 120 87);
}

/* Dropdown Parent Container */
.nav-dropdown-parent {
  position: relative;
}

.nav-dropdown-parent:hover .dropdown-menu {
  opacity: 1 !important;
  visibility: visible !important;
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 14rem;
  background-color: var(--surface-container-lowest);
  border-radius: 0.75rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  padding: 0.5rem;
  border: 1px solid rgba(193, 201, 187, 0.1);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
  z-index: 50;
  margin-top: 0.5rem;
}

/* Dropdown Links */
.dropdown-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  color: rgb(82 82 91);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.dropdown-link:hover {
  background-color: rgba(172, 244, 164, 0.2);
  color: rgb(4 120 87);
  text-decoration: none;
}

.dropdown-link:hover .material-symbols-outlined {
  opacity: 1;
}

.dropdown-link .material-symbols-outlined {
  opacity: 0;
  transition: opacity 0.2s ease;
}

/* Active dropdown link */
li.active .dropdown-link {
  color: rgb(4 47 29);
  font-weight: 600;
}

/* ============================================================================
   Mobile Menu Styles
   ============================================================================ */

/* Mobile menu specific styles */
#mobile-menu-panel .nav,
#mobile-menu-panel .navbar-nav,
#mobile-menu-panel .ttr_menu_items {
  flex-direction: column;
  gap: 0;
  width: 100%;
}

#mobile-menu-panel .nav li,
#mobile-menu-panel .navbar-nav li,
#mobile-menu-panel .ttr_menu_items li {
  width: 100%;
  border-bottom: 1px solid rgba(192, 201, 187, 0.2);
}

#mobile-menu-panel .nav li a,
#mobile-menu-panel .navbar-nav li a,
#mobile-menu-panel .ttr_menu_items li a {
  padding: 1rem;
  width: 100%;
  border-bottom: none;
  font-size: 1rem;
}

#mobile-menu-panel .dropdown-menu {
  position: static;
  display: none;
  opacity: 1;
  visibility: visible;
  box-shadow: none;
  background: rgba(0, 69, 13, 0.05);
  margin: 0;
  padding: 0;
}

#mobile-menu-panel .dropdown.show > .dropdown-menu {
  display: block;
}

/* ============================================================================
   Print Styles
   ============================================================================ */

@media print {
  body {
    background-color: white;
    color: black;
  }
  #ttr_menu {
    display: none;
  }
  .btn {
    display: none;
  }
  .card {
    box-shadow: none;
    border: 1px solid #e0e0e0;
  }
}