/* Custom Stylesheet - HUB SCR */

/* Root Typography Scaler */
html {
  font-size: calc(16px * var(--accessibility-font-scale));
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: var(--line-height-base);
  transition: background-color 0.3s ease, color 0.3s ease;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1 0 auto;
}

/* Accessibility: Skip Link (WCAG 2.4.1) */
.skip-link {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--color-accent);
  color: #000000;
  padding: 10px 20px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  z-index: 9999;
  transition: top 0.2s ease;
  text-decoration: none;
}

.skip-link:focus {
  top: 15px;
  outline: 3px solid var(--border-focus);
}

/* Sticky Header (GitBook Inspired) */
.main-header {
  background-color: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 10px 0;
  z-index: 1030;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header-logo {
  height: 48px;
  width: auto;
}

.brand-text {
  line-height: 1.1;
}

.brand-text .hub-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-primary-light);
  letter-spacing: -0.5px;
}

[data-theme="dark"] .brand-text .hub-title {
  color: var(--color-accent);
}

.brand-text .hub-subtitle {
  font-family: var(--font-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-light);
}

/* Search Bar (Integrated) */
.header-search-wrapper {
  max-width: 500px;
}

.header-search-wrapper .position-relative {
  width: 100%;
}

.search-input {
  background-color: var(--bg-main) !important;
  border: 1px solid var(--border-color) !important;
  color: var(--text-main) !important;
  padding-left: 36px !important;
  padding-right: 70px !important;
  border-radius: var(--radius-md) !important;
  font-size: 0.9rem !important;
  height: 40px;
  transition: var(--transition-fast) !important;
}

.search-input::placeholder {
  color: var(--text-light);
  opacity: 0.8;
}

.search-icon-placeholder {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-light);
  pointer-events: none;
}

.search-kbd-shortcut {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--border-color);
  color: var(--text-light);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  pointer-events: none;
}

/* Navigation Links */
.navbar-nav .nav-link {
  font-family: var(--font-secondary);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

.navbar-nav .nav-link:hover {
  color: var(--color-primary-light);
  background-color: rgba(15, 59, 108, 0.05);
}

.navbar-nav .active-link {
  color: var(--color-primary-light) !important;
  background-color: rgba(15, 59, 108, 0.08);
}

[data-theme="dark"] .navbar-nav .nav-link:hover {
  color: var(--color-accent);
  background-color: rgba(255, 199, 44, 0.05);
}

[data-theme="dark"] .navbar-nav .active-link {
  color: var(--color-accent) !important;
  background-color: rgba(255, 199, 44, 0.1);
}

/* Header Buttons Icons */
.btn-header-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  border: 1px solid transparent;
  transition: var(--transition-fast);
  background: transparent;
}

.btn-header-icon:hover {
  background-color: var(--border-color);
  color: var(--text-main);
  border-color: var(--border-color);
}

/* Hero Banner */
.hero-banner {
  position: relative;
  background: var(--bg-hero);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: 15px;
}

.hero-pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.5;
  pointer-events: none;
}

.hero-eyebrow {
  position: relative;
  font-family: var(--font-secondary);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.hero-title {
  position: relative;
  font-family: var(--font-primary);
  font-weight: 800;
  font-size: 2.3rem;
  line-height: 1.22;
  margin-bottom: 0;
  letter-spacing: -0.6px;
}

.hero-ill-container {
  background-color: rgba(255, 255, 255, 0.07);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 250px;
  backdrop-filter: blur(5px);
}

.hero-ill {
  max-height: 150px;
}

/* Section Header (Scannability Icon + Description) */
.section-header .section-icon-badge {
  font-size: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.section-title {
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.3px;
}

.section-description {
  font-family: var(--font-secondary);
  font-size: 0.9rem;
}

/* Category Filter Pills */
.filter-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-btn {
  background-color: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 7px 16px;
  border-radius: 20px;
  font-family: var(--font-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.filter-btn:hover {
  background-color: rgba(34, 55, 100, 0.06);
  color: var(--color-primary-light);
  border-color: rgba(34, 55, 100, 0.25);
}

.filter-btn.active {
  background-color: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(34, 55, 100, 0.2);
}

[data-theme="dark"] .filter-btn:hover {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--color-accent);
}

[data-theme="dark"] .filter-btn.active {
  background-color: var(--color-primary-light);
  color: var(--color-accent);
  border-color: var(--color-primary-light);
}

/* Category Section Dividers */
.category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 1rem;
}

.category-icon-badge {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background-color: rgba(var(--color-teal-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.category-icon-badge img {
  width: 17px;
  height: 17px;
}

.category-title {
  font-weight: 700;
  color: var(--text-main);
  font-size: 1.15rem;
  letter-spacing: -0.3px;
  margin-bottom: 0 !important;
}

.category-divider-line {
  height: 2px;
  width: 56px;
  background-color: var(--color-teal);
  border-radius: 1px;
  margin-top: 6px;
  box-shadow: none;
}

body.high-contrast .category-divider-line {
  background-color: #ffff00 !important;
}

/* Modern Module Cards (SNI Style Layout) */
.resource-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  padding: 20px;
  position: relative;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.resource-card:hover,
.resource-card:focus {
  text-decoration: none;
  color: inherit;
}

.resource-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 20px -6px rgba(34, 55, 100, 0.10), 0 4px 8px -4px rgba(34, 55, 100, 0.06);
  border-color: rgba(34, 55, 100, 0.3);
}

/* Brand-only cards (logo + caption, no title) stay centered */
.resource-card--brand .card-icon-centered {
  justify-content: center;
}

.resource-card--brand .card-body-content {
  align-items: center;
  text-align: center;
}

[data-theme="dark"] .resource-card:hover {
  border-color: rgba(250, 199, 24, 0.4);
  box-shadow: 0 16px 30px -8px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .resource-card:hover .card-resource-title {
  color: var(--color-accent);
}

/* Card Header: SVG Icon Box + Badge */
/* Top Warning Disclaimer Alert (Single sentence at top) */
.alert-warning-top {
  background-color: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
  border-radius: 0;
  padding: 8px 0 14px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: var(--font-secondary);
}

.alert-warning-top svg {
  color: var(--text-light);
}

[data-theme="dark"] .alert-warning-top {
  color: var(--text-muted);
}

/* Standalone SVG Icon (No Box) */
.card-icon-centered {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  margin: 0 0 14px 0;
  width: 100%;
}

.card-svg-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.06));
}

.card-svg-icon-magma {
  width: 134px;
  height: 134px;
}

/* Card Body Content */
.card-body-content {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 0;
  text-align: left;
}

.card-resource-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-top: 2px;
  margin-bottom: 8px;
  color: var(--text-main);
  line-height: 1.3;
}

.card-resource-text {
  font-family: var(--font-secondary);
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 11px;
  flex-grow: 1;
}

/* About Panel Accent */
.text-main-accent-left {
  border-left: 4px solid var(--color-accent);
  background-color: var(--bg-card);
}

/* Footer Section */
.main-footer {
  background-color: var(--color-primary);
  color: #ffffff;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-secondary);
  font-size: 0.95rem;
}

.footer-logo {
  height: 52px;
}

.footer-col-title {
  color: var(--color-accent);
  margin-bottom: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links-list li {
  margin-bottom: 8px;
}

.footer-links-list a {
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer-links-list a:hover {
  color: var(--color-accent);
  padding-left: 2px;
}

.social-icon-btn {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border-radius: 50%;
  transition: var(--transition-fast);
  text-decoration: none;
}

.social-icon-btn:hover {
  background-color: var(--color-accent);
  color: #000000;
  transform: translateY(-2px);
}

/* Accessibility Dropdown menu formatting */
.accessibility-dropdown {
  width: 280px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  background-color: var(--bg-card);
}

.accessibility-dropdown .dropdown-item {
  font-weight: 500;
  font-size: 0.88rem;
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

.accessibility-dropdown .dropdown-item:hover {
  background-color: var(--border-color);
  color: var(--text-main);
}

/* Focus Indicators (WCAG 2.4.7) */
*:focus-visible {
  outline: 3px solid var(--border-focus) !important;
  outline-offset: 2px;
}

/* High Contrast Override Overlays */
body.high-contrast .resource-card {
  border: 2px solid #000000 !important;
}

body.high-contrast .main-header {
  border-bottom: 3px solid #000000 !important;
}

body.high-contrast .main-footer {
  background-color: #000000 !important;
  border-top: 3px solid #000000 !important;
  color: #ffffff !important;
}

body.high-contrast .main-footer a {
  color: #ffff00 !important;
  text-decoration: underline !important;
}

body.high-contrast .main-footer .footer-col-title {
  color: #ffffff !important;
}

body.high-contrast .social-icon-btn {
  border: 1.5px solid #ffff00 !important;
  background-color: #000000 !important;
  color: #ffff00 !important;
}

body.high-contrast .social-icon-btn:hover {
  background-color: #ffff00 !important;
  color: #000000 !important;
}

body.high-contrast .search-input {
  border: 2px solid #000000 !important;
}

/* Media Queries for Responsive Grid adjustment */
@media (max-width: 768px) {
  .hero-title {
    font-size: 1.75rem;
  }
  .section-title {
    font-size: 1.2rem;
  }
}

.mobile-search-container {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 1025;
}