/* ==========================================================================
   CitedCorp - Main Stylesheet
   Pixel-accurate, modern, accessible & responsive CSS for CitedCorp
   ========================================================================== */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Brand Colors */
  --color-brand-blue: #0c66dd;
  --color-brand-blue-hover: #0952b8;
  --color-brand-blue-subtle: #eff6fd;
  --color-brand-green: #00875a;
  --color-brand-green-hover: #007048;
  --color-brand-green-subtle: #f0f8f4;
  
  /* Text & Surface Colors */
  --color-navy: #0e1726;
  --color-navy-subtle: #1e293b;
  --color-slate-dark: #334155;
  --color-slate: #4b5563;
  --color-slate-light: #64748b;
  --color-slate-subtle: #94a3b8;
  --color-border: #e2e8f0;
  --color-border-light: #f1f5f9;
  --color-white: #ffffff;
  
  /* Project Card Colors */
  --color-card-qcarta-bg: #fdfbf3;
  --color-card-geosuite-bg: #f8f6fd;
  --color-card-report-bg: #f0f8f7;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Radii & Shadows */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 12px;
  
  --shadow-card-hover: 0 8px 20px -4px rgba(15, 23, 42, 0.06);
  --shadow-modal: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease-in-out;
}

/* --- Base & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-slate);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  overflow-x: hidden;
  overflow-y: scroll;
  scrollbar-gutter: stable;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

.main-content {
  flex: 1;
  min-width: 0;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

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

/* --- Container --- */
.page-container {
  width: 100%;
  max-width: 1145px;
  margin: 0 auto;
  padding: 0 56px;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(8px);
  transition: box-shadow var(--transition-normal);
}

.site-header.scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  width: 100%;
  max-width: 1145px;
  margin: 0 auto;
  padding: 0 56px;
}

/* Brand Logo */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  user-select: none;
  flex-shrink: 0;
}

.brand-symbol {
  display: grid;
  grid-template-columns: repeat(2, 11px);
  grid-gap: 3px;
  width: 25px;
  height: 25px;
}

.brand-symbol .sq {
  width: 11px;
  height: 11px;
  background-color: var(--color-brand-blue);
  border-radius: 2px;
  transition: transform var(--transition-fast);
}

.brand-logo:hover .sq-1 { transform: translate(-1px, -1px); }
.brand-logo:hover .sq-2 { transform: translate(1px, -1px); }
.brand-logo:hover .sq-3 { transform: translate(-1px, 1px); }
.brand-logo:hover .sq-4 { transform: translate(1px, 1px); }

.brand-text {
  font-size: 25px;
  font-weight: 800;
  letter-spacing: -0.5px;
  line-height: 1;
}

.brand-cited {
  color: var(--color-navy);
}

.brand-corp {
  color: var(--color-brand-blue);
}

/* Nav Menu */
.nav-menu {
  display: flex;
  align-items: center;
  margin-left: 48px;
  margin-right: auto;
}

.nav-list {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 32px;
  padding-top: 5px;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-navy-subtle);
  padding: 6px 2px;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-item:hover > .nav-link {
  color: var(--color-brand-blue);
}

.dropdown-arrow {
  color: var(--color-slate-dark);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.nav-item:hover .dropdown-arrow,
.dropdown-toggle[aria-expanded="true"] .dropdown-arrow {
  transform: rotate(180deg);
  color: var(--color-brand-blue);
}

/* Dropdown Menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  width: 280px;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px 0;
  box-shadow: var(--shadow-card-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 100;
}

.nav-item:hover .dropdown-menu,
.nav-item:focus-within .dropdown-menu,
.dropdown-menu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(2px);
}

.dropdown-item {
  display: block;
  padding: 10px 18px;
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: var(--color-brand-blue-subtle);
}

.dropdown-title {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-navy);
}

.dropdown-desc {
  display: block;
  font-size: 12px;
  color: var(--color-slate-light);
  margin-top: 2px;
}

.dropdown-footer {
  border-top: 1px solid var(--color-border);
  margin-top: 6px;
  padding-top: 6px;
}

.dropdown-all {
  display: block;
  padding: 8px 18px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-brand-blue);
}

.dropdown-all:hover {
  text-decoration: underline;
}

/* Header Utilities */
.header-utilities {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.search-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--color-slate-dark);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.search-trigger-btn:hover {
  color: var(--color-brand-blue);
  background-color: var(--color-brand-blue-subtle);
}

.nav-separator {
  width: 1px;
  height: 24px;
  background-color: #cbd5e1;
}

.header-tagline {
  display: flex;
  flex-direction: column;
  font-size: 12px;
  line-height: 1.25;
  color: var(--color-slate-light);
  font-weight: 400;
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
}

.hamburger-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* --- Hero Section --- */
.hero-section {
  padding: 46px 0 24px;
}

.hero-title {
  font-size: 47px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.03em;
  line-height: 1.12;
  max-width: 900px;
}

.hero-subtitle {
  font-size: 20.5px;
  color: #4b5563;
  line-height: 1.45;
  max-width: 680px;
  margin-top: 14px;
  font-weight: 400;
}

.hero-accent-bar {
  width: 68px;
  height: 3px;
  background-color: var(--color-brand-blue);
  border-radius: 2px;
  margin-top: 22px;
}

/* --- Content Sections Common --- */
.content-section {
  margin-top: 32px;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-badge {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-slate-light);
}

.section-action-link {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-brand-blue);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: color var(--transition-fast);
}

.section-action-link .arrow-icon {
  font-size: 15px;
  transition: transform var(--transition-fast);
}

.section-action-link:hover .arrow-icon {
  transform: translateX(4px);
}

/* --- Products Section (2-Column) --- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.product-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 26px 30px 28px;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.product-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.card-acugis {
  background-color: var(--color-brand-blue-subtle);
}

.card-geojibe {
  background-color: var(--color-brand-green-subtle);
}

.card-icon-wrap {
  flex-shrink: 0;
  width: 68px;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin-top: 2px;
}

.product-icon {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.card-content {
  flex: 1;
}

.product-title {
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.text-navy {
  color: var(--color-navy);
}

.text-blue {
  color: var(--color-brand-blue);
}

.text-green {
  color: var(--color-brand-green);
}

.product-subtitle {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--color-navy-subtle);
  margin-top: 6px;
  margin-bottom: 8px;
  line-height: 1.35;
}

.product-description {
  font-size: 13.5px;
  color: var(--color-slate);
  line-height: 1.45;
  margin-bottom: 22px;
  max-width: 375px;
}

.card-action {
  display: flex;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn .btn-arrow {
  font-size: 15px;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

.btn-blue {
  background-color: var(--color-brand-blue);
  color: var(--color-white);
}

.btn-blue:hover {
  background-color: var(--color-brand-blue-hover);
  box-shadow: 0 4px 12px rgba(12, 102, 221, 0.25);
}

.btn-green {
  background-color: var(--color-brand-green);
  color: var(--color-white);
}

.btn-green:hover {
  background-color: var(--color-brand-green-hover);
  box-shadow: 0 4px 12px rgba(0, 135, 90, 0.25);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-brand-blue);
  border: 1.5px solid var(--color-brand-blue);
  padding: 8px 18px;
}

.btn-outline:hover {
  background-color: var(--color-brand-blue);
  color: var(--color-white);
  box-shadow: 0 4px 12px rgba(12, 102, 221, 0.2);
}

/* --- Open Source Projects (3-Column) --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.project-card {
  display: flex;
  flex-direction: column;
  padding: 24px 22px 24px;
  border-radius: var(--radius-lg);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.card-qcarta {
  background-color: var(--color-card-qcarta-bg);
}

.card-geosuite {
  background-color: var(--color-card-geosuite-bg);
}

.card-reportserver {
  background-color: var(--color-card-report-bg);
}

.project-icon-wrap {
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-bottom: 12px;
}

.project-icon {
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.project-title {
  font-size: 21px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.project-subtitle {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-slate-dark);
  margin-top: 6px;
  margin-bottom: 8px;
  line-height: 1.35;
}

.project-description {
  font-size: 13px;
  color: var(--color-slate-light);
  line-height: 1.45;
  margin-bottom: 22px;
  flex-grow: 1;
}

.project-action {
  margin-top: auto;
}

.link-action {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-brand-blue);
  transition: color var(--transition-fast);
}

.link-action .link-arrow {
  font-size: 15px;
  transition: transform var(--transition-fast);
}

.link-action:hover .link-arrow {
  transform: translateX(3px);
}

/* --- Section Divider --- */
.section-divider {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 36px 0 32px;
}

/* --- About Section --- */
.about-section {
  padding-bottom: 36px;
}

.about-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-top: 8px;
  margin-bottom: 12px;
}

.about-description {
  font-size: 14.5px;
  color: var(--color-slate);
  line-height: 1.55;
  max-width: 800px;
  margin-bottom: 22px;
}

.about-action {
  display: flex;
}

/* --- Footer --- */
.site-footer {
  border-top: 1px solid #e5e7eb;
  background-color: var(--color-white);
  padding: 22px 0 28px;
  margin-top: auto;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.footer-link {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--color-slate);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-brand-blue);
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 16px;
}

.social-link {
  color: var(--color-slate-dark);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.social-link:hover {
  color: var(--color-navy);
  transform: translateY(-1px);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--color-slate-light);
  padding-top: 16px;
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: 20px;
}

.legal-link {
  color: var(--color-slate-light);
  transition: color var(--transition-fast);
}

.legal-link:hover {
  color: var(--color-brand-blue);
}

/* --- Search Modal Overlay --- */
.search-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 80px 20px 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.search-modal.open {
  opacity: 1;
  visibility: visible;
}

.search-backdrop {
  position: absolute;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(4px);
}

.search-container {
  position: relative;
  width: 100%;
  max-width: 560px;
  background-color: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transform: translateY(-12px);
  transition: transform var(--transition-normal);
}

.search-modal.open .search-container {
  transform: translateY(0);
}

.search-header {
  display: flex;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  gap: 12px;
}

.search-input-icon {
  width: 20px;
  height: 20px;
  color: var(--color-slate-light);
  flex-shrink: 0;
}

#site-search {
  flex: 1;
  border: none;
  outline: none;
  font-size: 16px;
  font-family: inherit;
  color: var(--color-navy);
}

#site-search::placeholder {
  color: var(--color-slate-subtle);
}

.search-close-btn {
  color: var(--color-slate-light);
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.search-close-btn:hover {
  color: var(--color-navy);
  background-color: var(--color-border-light);
}

.search-results-preview {
  padding: 16px 20px 20px;
}

.search-hint {
  display: block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-subtle);
  margin-bottom: 10px;
}

.search-results-preview ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.search-results-preview li a {
  display: block;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--color-slate);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.search-results-preview li a:hover {
  background-color: var(--color-brand-blue-subtle);
  color: var(--color-brand-blue);
}

/* --- Responsive Media Queries --- */

/* Tablet Breakpoint */
@media (max-width: 960px) {
  .page-container {
    padding: 0 32px;
  }

  .header-container {
    padding: 0 32px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .header-tagline {
    display: none;
  }

  .nav-separator {
    display: none;
  }
}

/* Mobile Breakpoint */
@media (max-width: 768px) {
  .header-container {
    height: 60px;
    padding: 0 16px;
  }

  .page-container {
    padding: 0 16px;
  }

  .brand-text {
    font-size: 20px;
  }

  .brand-symbol {
    grid-template-columns: repeat(2, 9px);
    grid-gap: 2px;
    width: 20px;
    height: 20px;
  }

  .brand-symbol .sq {
    width: 9px;
    height: 9px;
  }

  .mobile-toggle {
    display: flex;
    order: 3;
    margin-left: 12px;
  }

  .header-utilities {
    margin-left: auto;
    order: 2;
    gap: 8px;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 16px 20px 24px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    margin: 0;
  }

  .nav-menu.open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    width: 100%;
  }

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    justify-content: space-between;
    padding: 8px 0;
    font-size: 15px;
  }

  .dropdown-menu {
    position: static;
    width: 100%;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--color-border);
    border-radius: 0;
    padding: 4px 0 4px 12px;
    margin-top: 4px;
    display: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .dropdown-menu.active,
  .nav-item.open .dropdown-menu {
    display: block;
  }

  .hero-section {
    padding: 28px 0 16px;
  }

  .hero-title {
    font-size: 26px;
    letter-spacing: -0.02em;
    line-height: 1.2;
    max-width: 100%;
    word-break: normal;
    overflow-wrap: break-word;
  }

  .hero-subtitle {
    font-size: 15px;
    line-height: 1.45;
    margin-top: 10px;
    max-width: 100%;
  }

  .about-title {
    font-size: 21px;
    max-width: 100%;
  }

  .about-description {
    font-size: 14px;
    max-width: 100%;
  }

  .product-description {
    max-width: 100%;
  }

  .product-card {
    flex-direction: column;
    padding: 22px 18px;
    gap: 14px;
  }

  .card-icon-wrap {
    width: 56px;
    height: 56px;
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .footer-nav {
    flex-wrap: wrap;
    gap: 14px 20px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* ==========================================================================
   About Page Styles (Clean Editorial Layout)
   ========================================================================== */

.nav-link.active {
  color: var(--color-brand-blue);
  font-weight: 600;
}

.about-article {
  max-width: 820px;
  margin: 0 auto;
  padding: 44px 0 72px;
}

.about-section {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--color-border);
}

.about-section.about-intro {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.about-title {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-top: 6px;
  margin-bottom: 8px;
  text-wrap: balance;
}

.about-subtitle {
  font-size: 19px;
  font-weight: 500;
  color: var(--color-slate-dark);
  line-height: 1.45;
  margin-bottom: 24px;
  text-wrap: balance;
}

.about-heading {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-top: 6px;
  margin-bottom: 18px;
  text-wrap: balance;
}

.about-prose p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-slate);
  margin-bottom: 16px;
  text-wrap: pretty;
}

.about-prose p:last-child {
  margin-bottom: 0;
}

.about-prose ul {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-slate);
  margin: 0 0 16px 1.25em;
}

.about-prose li {
  margin-bottom: 8px;
}

.about-prose li:last-child {
  margin-bottom: 0;
}

.about-prose a {
  color: var(--color-brand-blue);
  font-weight: 500;
}

.about-prose a:hover {
  color: var(--color-brand-blue-hover);
  text-decoration: underline;
}

/* Links */
.about-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-brand-blue);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.about-link:hover {
  color: var(--color-brand-blue-hover);
  gap: 8px;
}

.about-link-arrow {
  transition: transform var(--transition-fast);
}

.about-link:hover .about-link-arrow {
  transform: translateX(3px);
}

.about-action-line {
  margin-top: 14px;
}

/* Responsive */
@media (max-width: 800px) {
  .about-article {
    padding: 32px 0 56px;
  }

  .about-section {
    margin-top: 36px;
    padding-top: 28px;
  }

  .about-title {
    font-size: 30px;
  }

  .about-subtitle {
    font-size: 17px;
  }

  .about-heading {
    font-size: 21px;
  }
}

/* ==========================================================================
   Contact Page
   ========================================================================== */

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 360px);
  column-gap: 80px;
  align-items: start;
  padding: 80px 0 88px;
}

.contact-title {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-bottom: 12px;
  text-wrap: balance;
}

.contact-subtitle {
  font-size: 19px;
  font-weight: 500;
  color: var(--color-slate-dark);
  line-height: 1.45;
  max-width: 420px;
  text-wrap: balance;
}

.contact-details {
  max-width: 360px;
}

.contact-item + .contact-item {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.contact-label {
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--color-slate-light);
  margin-bottom: 10px;
}

.contact-value {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.55;
  color: var(--color-navy);
}

.contact-value a {
  color: var(--color-brand-blue);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.contact-value a:hover {
  color: var(--color-brand-blue-hover);
}

/* ==========================================================================
   Open Source Page
   ========================================================================== */

.oss-article {
  max-width: 650px;
  margin: 0 auto;
  padding: 44px 0 72px;
}

.oss-intro {
  margin-bottom: 48px;
}

.oss-page-title {
  font-size: 38px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.025em;
  line-height: 1.18;
  margin-top: 6px;
  margin-bottom: 8px;
  text-wrap: balance;
}

.oss-page-subtitle {
  font-size: 19px;
  font-weight: 500;
  color: var(--color-slate-dark);
  line-height: 1.45;
  text-wrap: balance;
}

.oss-list {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.oss-item {
  scroll-margin-top: 88px;
}

.oss-item-figure {
  margin: 0 0 22px;
  width: 650px;
  max-width: 100%;
}

.oss-item-image {
  width: 650px;
  max-width: 100%;
  height: auto;
  aspect-ratio: 650 / 450;
  object-fit: cover;
  background-color: #edf2f7;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.oss-item-title {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 12px;
  text-wrap: balance;
}

.oss-item-body p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-slate);
  margin-bottom: 14px;
  text-wrap: pretty;
}

.oss-item-body p:last-child {
  margin-bottom: 0;
}

.oss-item-action {
  margin-top: 6px;
}

.oss-github-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--color-brand-blue);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.oss-github-link:hover {
  color: var(--color-brand-blue-hover);
  gap: 8px;
}

.oss-github-arrow {
  transition: transform var(--transition-fast);
}

.oss-github-link:hover .oss-github-arrow {
  transform: translateX(3px);
}

@media (max-width: 800px) {
  .oss-article {
    padding: 32px 0 56px;
  }

  .oss-intro {
    margin-bottom: 36px;
  }

  .oss-page-title {
    font-size: 30px;
  }

  .oss-page-subtitle {
    font-size: 17px;
  }

  .oss-list {
    gap: 40px;
  }

  .oss-item-title {
    font-size: 21px;
  }
}

@media (max-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr;
    column-gap: 0;
    padding: 48px 0 64px;
  }

  .contact-title {
    font-size: 30px;
  }

  .contact-subtitle {
    font-size: 17px;
    max-width: none;
  }

  .contact-details {
    max-width: none;
    margin-top: 48px;
  }

  .contact-item + .contact-item {
    margin-top: 22px;
    padding-top: 22px;
  }
}