/* =============================================================
   SYNDESIS STATIC SITE — STYLES
   Base → Layout → Components → Utilities
   ============================================================= */

/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* --- CSS Custom Properties --- */
:root {
  --blue-50:  #eff6ff;
  --blue-100: #dbeafe;
  --blue-900: #1e3a8a;
  --blue-950: #172554;
  --teal-50:  #f0fdfa;
  --teal-400: #2dd4bf;
  --teal-600: #0d9488;
  --teal-700: #0f766e;
  --gray-50:  #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --green-50:  #f0fdf4;
  --green-700: #15803d;
  --purple-300: #d8b4fe;
  --purple-900: #4c1d95;
  --yellow-400: #facc15;
  --yellow-500: #eab308;
  --white: #ffffff;

  --max-width: 1440px;
  --px: 2rem;       /* 32px — px-8 */
  --px-lg: 4rem;    /* 64px — px-16 */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,.05);
  --shadow: 0 1px 3px 0 rgba(0,0,0,.1),0 1px 2px -1px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1);
}

/* =====================================================================
   BASE
   ===================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  color: var(--gray-900);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { line-height: 1.2; font-weight: 700; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
ul, ol { list-style: none; }

/* =====================================================================
   LAYOUT HELPERS
   ===================================================================== */
.container {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--px);
  padding-right: var(--px);
}

@media (min-width: 1024px) {
  .container { padding-left: var(--px-lg); padding-right: var(--px-lg); }
}

.min-h-screen { min-height: 100vh; }

/* =====================================================================
   HEADER / NAVIGATION
   ===================================================================== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem; /* 80px */
}

/* Logo */
.nav-logo { display: flex; align-items: center; gap: 0.75rem; }
.nav-logo-icon {
  width: 2.5rem; height: 2.5rem;
  background: linear-gradient(135deg, var(--blue-900), var(--teal-600));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-weight: 700; font-size: 1.125rem;
  flex-shrink: 0;
}
.nav-logo-text { font-size: 1.5rem; font-weight: 700; color: var(--gray-900); }

/* Desktop menu */
.nav-menu {
  display: none;
  align-items: center;
  gap: 2rem;
}
.nav-menu a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
}
.nav-menu a:hover,
.nav-menu a.active { color: var(--blue-900); }

@media (min-width: 1024px) {
  .nav-menu { display: flex; }
  .nav-toggle { display: none; }
}

/* Hamburger */
.nav-toggle {
  background: none;
  border: none;
  padding: 0.5rem;
  color: var(--gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-toggle svg { width: 24px; height: 24px; }

/* Mobile drawer */
.nav-mobile {
  display: none;
  padding: 1rem 0;
  border-top: 1px solid var(--gray-200);
}
.nav-mobile.open { display: block; }
.nav-mobile a {
  display: block;
  padding: 0.75rem 0;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
}
.nav-mobile a:hover, .nav-mobile a.active { color: var(--blue-900); }

/* =====================================================================
   HERO (shared across pages)
   ===================================================================== */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--blue-950) 0%, var(--blue-900) 50%, #134e4a 100%);
  color: var(--white);
  overflow: hidden;
}
.hero-blobs {
  position: absolute;
  inset: 0;
  opacity: 0.1;
  pointer-events: none;
}
.hero-blob-1 {
  position: absolute; top: 5rem; left: 5rem;
  width: 24rem; height: 24rem;
  background: var(--teal-400);
  border-radius: 50%; filter: blur(60px);
}
.hero-blob-2 {
  position: absolute; bottom: 5rem; right: 5rem;
  width: 24rem; height: 24rem;
  background: #60a5fa;
  border-radius: 50%; filter: blur(60px);
}
.hero-inner {
  position: relative;
  padding-top: 5rem; padding-bottom: 5rem;
}
@media (min-width: 1024px) {
  .hero-inner { padding-top: 7rem; padding-bottom: 7rem; }
}
.hero-home .hero-inner { padding-top: 6rem; padding-bottom: 6rem; }
@media (min-width: 1024px) {
  .hero-home .hero-inner { padding-top: 8rem; padding-bottom: 8rem; }
}
.hero-eyebrow {
  font-size: 0.75rem; font-weight: 600;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--teal-400);
  margin-bottom: 1rem;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}
.hero-lead {
  font-size: 1.25rem;
  color: #d1d5db;
  line-height: 1.7;
  max-width: 48rem;
}
.hero-center { text-align: center; }
.hero-center .hero-lead { margin-left: auto; margin-right: auto; }
.hero-center h1 { max-width: 56rem; margin-left: auto; margin-right: auto; }

/* Back link in hero */
.hero-back {
  display: inline-flex; align-items: center; gap: 0.5rem;
  color: var(--teal-400); font-size: 0.875rem; font-weight: 500;
  margin-bottom: 2rem;
  transition: color 0.2s;
}
.hero-back:hover { color: #5eead4; }
.hero-back svg { width: 20px; height: 20px; }

/* Project hero meta */
.project-hero-layout {
  display: flex; flex-direction: column; gap: 2rem; align-items: flex-start;
}
@media (min-width: 1024px) {
  .project-hero-layout { flex-direction: row; }
}
.project-hero-logo {
  width: 6rem; height: 6rem;
  background: var(--white); border-radius: var(--radius-xl);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  font-weight: 700; font-size: 1.875rem;
  color: var(--blue-900);
}
.project-hero-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; }
@media (min-width: 768px) {
  .project-hero-meta { grid-template-columns: repeat(4, 1fr); }
}
.project-hero-meta-item { display: flex; align-items: flex-start; gap: 0.5rem; }
.project-hero-meta-item svg { color: var(--teal-400); margin-top: 0.25rem; flex-shrink: 0; width: 20px; height: 20px; }
.project-hero-meta-label { font-size: 0.75rem; color: #9ca3af; }
.project-hero-meta-value { font-size: 0.875rem; font-weight: 600; }
.hero-subtitle { font-size: 1.25rem; color: #d1d5db; margin-top: 0.75rem; }

/* =====================================================================
   BUTTONS
   ===================================================================== */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-weight: 600; font-size: 1rem;
  transition: all 0.2s;
  border: none; cursor: pointer;
}
.btn svg { width: 18px; height: 18px; }

.btn-primary {
  padding: 0.875rem 2rem;
  background: var(--yellow-500);
  color: var(--gray-900);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
}
.btn-primary:hover {
  background: var(--yellow-400);
  box-shadow: var(--shadow-xl);
}

.btn-secondary {
  padding: 0.875rem 2rem;
  background: transparent;
  border: 2px solid var(--white);
  color: var(--white);
  border-radius: var(--radius-full);
}
.btn-secondary:hover {
  background: var(--white);
  color: var(--gray-900);
}

.btn-outline {
  padding: 0.625rem 1.5rem;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
  border-radius: var(--radius-full);
  background: transparent;
  font-weight: 500;
}
.btn-outline:hover {
  border-color: var(--blue-900);
  color: var(--blue-900);
}

.btn-full { width: 100%; justify-content: center; }

/* Hero CTA group */
.hero-ctas {
  display: flex; flex-direction: column; gap: 1rem;
  align-items: center; margin-top: 2.5rem;
}
@media (min-width: 640px) {
  .hero-ctas { flex-direction: row; justify-content: center; }
}

/* =====================================================================
   CREDIBILITY BAR
   ===================================================================== */
.cred-bar {
  border-bottom: 1px solid var(--gray-200);
  background: var(--gray-50);
  padding: 2rem 0;
}
.cred-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
}
@media (min-width: 768px) {
  .cred-grid { grid-template-columns: repeat(5, 1fr); }
}
.cred-item {
  display: flex; flex-direction: column; align-items: center;
  text-align: center; gap: 0.5rem;
  color: var(--gray-700);
  transition: color 0.2s;
}
.cred-item:hover { color: var(--blue-900); }
.cred-item svg { width: 32px; height: 32px; color: var(--teal-600); transition: color 0.2s; }
.cred-item:hover svg { color: var(--blue-900); }
.cred-item span { font-size: 0.875rem; font-weight: 500; }

/* =====================================================================
   SECTION WRAPPERS
   ===================================================================== */
.section { padding: 5rem 0; }
.section-lg { padding: 7rem 0; }
@media (min-width: 1024px) {
  .section { padding: 7rem 0; }
  .section-lg { padding: 7rem 0; }
}
.section-bg-gray { background: var(--gray-50); }
.section-bg-white { background: var(--white); }
.section-bg-dark {
  background: linear-gradient(135deg, var(--blue-950), var(--blue-900), #134e4a);
  color: var(--white);
}

.section-header { text-align: center; margin-bottom: 4rem; }
.section-header h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--gray-900);
  margin-bottom: 1rem;
}
.section-header p { font-size: 1.25rem; color: var(--gray-600); max-width: 48rem; margin: 0 auto; }

/* =====================================================================
   FOCUS AREA CARDS
   ===================================================================== */
.focus-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
  margin-bottom: 3rem;
}
@media (min-width: 1024px) {
  .focus-grid { grid-template-columns: repeat(3, 1fr); }
}
.focus-card {
  background: linear-gradient(135deg, var(--blue-50), var(--teal-50));
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-xl);
  padding: 2rem;
  display: flex; flex-direction: column;
  height: 100%;
}
.focus-card-icon { margin-bottom: 1.5rem; }
.focus-card-icon svg { width: 48px; height: 48px; color: var(--blue-900); }
.focus-card h3 { font-size: 1.5rem; color: var(--gray-900); margin-bottom: 1rem; }
.focus-card p { color: var(--gray-700); line-height: 1.7; margin-bottom: 1.5rem; }
.focus-card ul { margin-bottom: 1.5rem; flex-grow: 1; }
.focus-card li {
  display: flex; align-items: flex-start; gap: 0.5rem;
  margin-bottom: 0.75rem; font-size: 0.875rem; color: var(--gray-700);
}
.focus-card li svg { color: var(--teal-600); margin-top: 0.125rem; flex-shrink: 0; width: 20px; height: 20px; }
.focus-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.focus-tag {
  padding: 0.25rem 0.75rem;
  background: var(--white); color: var(--gray-700);
  font-size: 0.75rem; font-weight: 500;
  border-radius: var(--radius-full);
}

/* Quantum ribbon */
.quantum-ribbon {
  background: linear-gradient(90deg, var(--purple-900), var(--blue-900));
  border-radius: var(--radius-xl);
  padding: 2rem;
  color: var(--white);
}
.quantum-ribbon-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 0.75rem; }
.quantum-ribbon-header svg { width: 32px; height: 32px; color: var(--purple-300); }
.quantum-ribbon h3 { font-size: 1.5rem; }
.quantum-ribbon p { color: #e5e7eb; line-height: 1.7; max-width: 64rem; }

/* =====================================================================
   PROJECT CARDS
   ===================================================================== */
.projects-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
}
@media (min-width: 768px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
  transition: box-shadow 0.2s;
}
.project-card:hover { box-shadow: var(--shadow-lg); }

.project-card-logo {
  width: 4rem; height: 4rem;
  background: linear-gradient(135deg, var(--blue-900), var(--teal-600));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-weight: 700; font-size: 1.25rem;
  margin-bottom: 1rem; flex-shrink: 0;
}
.project-card h3 { font-size: 1.25rem; color: var(--gray-900); margin-bottom: 0.75rem; }
.project-card-summary {
  font-size: 0.875rem; color: var(--gray-600);
  line-height: 1.7; margin-bottom: 1rem; flex-grow: 1;
}
.project-card-badges { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.badge {
  padding: 0.25rem 0.75rem; border-radius: var(--radius-full);
  font-size: 0.75rem; font-weight: 500;
}
.badge-role { background: var(--blue-50); color: var(--blue-900); }
.badge-ongoing { background: var(--green-50); color: var(--green-700); }
.badge-completed { background: var(--gray-100); color: var(--gray-600); }
.tag-chip {
  padding: 0.25rem 0.75rem;
  background: var(--gray-100); color: var(--gray-700);
  font-size: 0.75rem; font-weight: 500;
  border-radius: var(--radius-full);
}
.project-card-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1rem; }

.project-card-cta {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; font-weight: 600;
  color: var(--blue-900);
  transition: color 0.2s;
}
.project-card-cta:hover { color: var(--teal-600); }
.project-card-cta svg { width: 16px; height: 16px; }

/* =====================================================================
   FILTER BAR (Projects page)
   ===================================================================== */
.filter-bar {
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
  position: sticky;
  top: 5rem; /* below nav */
  z-index: 40;
  padding: 1.5rem 0;
}
.filter-tabs { display: flex; gap: 1rem; margin-bottom: 1.5rem; }
.filter-tab {
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600; font-size: 0.875rem;
  border: none; cursor: pointer;
  background: var(--white); color: var(--gray-700);
  transition: all 0.2s;
}
.filter-tab:hover { background: var(--gray-100); }
.filter-tab.active { background: var(--blue-900); color: var(--white); }

.filter-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.filter-chip {
  padding: 0.5rem 1rem; border-radius: var(--radius-full);
  font-size: 0.875rem; font-weight: 500;
  border: 1px solid var(--gray-300);
  background: var(--white); color: var(--gray-700);
  cursor: pointer; transition: all 0.2s;
}
.filter-chip:hover { background: var(--gray-100); }
.filter-chip.active { background: var(--teal-600); color: var(--white); border-color: var(--teal-600); }

.filter-clear {
  padding: 0.5rem 1rem; border-radius: var(--radius-full);
  font-size: 0.875rem; font-weight: 500;
  border: none; background: none; cursor: pointer;
  color: var(--gray-600);
}
.filter-clear:hover { color: var(--gray-900); }

.filter-count { color: var(--gray-600); margin-bottom: 2rem; }

/* No results */
.no-results { text-align: center; padding: 5rem 0; font-size: 1.25rem; color: var(--gray-600); }

/* =====================================================================
   PRODUCTS & SERVICES CARDS (home section)
   ===================================================================== */
.products-home-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
}
@media (min-width: 768px) {
  .products-home-grid { grid-template-columns: repeat(3, 1fr); }
}
.product-home-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column;
}
.product-home-card h3 { font-size: 1.5rem; color: var(--gray-900); margin-bottom: 0.75rem; }
.product-home-card p { color: var(--gray-600); line-height: 1.7; margin-bottom: 1.5rem; flex-grow: 1; }

/* =====================================================================
   EXPERTISE AREAS (alternating layout)
   ===================================================================== */
.expertise-pair {
  display: grid; grid-template-columns: 1fr; gap: 3rem;
  align-items: center; margin-bottom: 5rem;
}
@media (min-width: 1024px) {
  .expertise-pair { grid-template-columns: 1fr 1fr; }
}
.expertise-pair:last-child { margin-bottom: 0; }
.expertise-pair.reverse > .expertise-content { order: 1; }
.expertise-pair.reverse > .expertise-visual { order: 0; }
@media (min-width: 1024px) {
  .expertise-pair.reverse > .expertise-content { order: 2; }
  .expertise-pair.reverse > .expertise-visual { order: 1; }
}
.expertise-icon { margin-bottom: 1.5rem; }
.expertise-icon svg { width: 48px; height: 48px; color: var(--blue-900); }
.expertise-content h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); color: var(--gray-900); margin-bottom: 1rem; }
.expertise-content > p { font-size: 1.125rem; color: var(--gray-600); line-height: 1.7; margin-bottom: 2rem; }
.expertise-caps h3 { font-size: 1.125rem; font-weight: 700; color: var(--gray-900); margin-bottom: 1rem; }
.expertise-caps ul { margin-bottom: 2rem; }
.expertise-caps li {
  display: flex; align-items: flex-start; gap: 0.75rem;
  margin-bottom: 0.75rem; color: var(--gray-700);
}
.expertise-caps li svg { color: var(--teal-600); margin-top: 0.125rem; flex-shrink: 0; width: 20px; height: 20px; }
.expertise-tech-label {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  color: var(--gray-500); letter-spacing: 0.05em; margin-bottom: 0.75rem;
}
.expertise-tech-chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.expertise-tech-chip {
  padding: 0.5rem 1rem;
  background: var(--gray-100); color: var(--gray-700);
  font-size: 0.875rem; font-weight: 500;
  border-radius: var(--radius-full);
}
.expertise-visual {
  background: linear-gradient(135deg, var(--blue-50), var(--teal-50));
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-xl);
  min-height: 25rem;
  display: flex; align-items: center; justify-content: center;
}
.expertise-visual-inner { text-align: center; }
.expertise-visual-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 8rem; height: 8rem;
  background: var(--white); border-radius: 50%; box-shadow: var(--shadow-lg);
  margin-bottom: 1.5rem;
}
.expertise-visual-icon svg { width: 48px; height: 48px; color: var(--blue-900); }
.expertise-visual-caption { color: var(--gray-600); font-weight: 600; }

/* Cross-domain cards */
.cross-domain-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
}
@media (min-width: 768px) {
  .cross-domain-grid { grid-template-columns: repeat(3, 1fr); }
}
.cross-domain-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl); padding: 2rem;
  box-shadow: var(--shadow-sm);
}
.cross-domain-card h3 { font-size: 1.25rem; color: var(--gray-900); margin-bottom: 0.75rem; }
.cross-domain-card p { color: var(--gray-600); line-height: 1.7; margin-bottom: 1rem; }
.cross-domain-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; font-weight: 600; color: var(--blue-900);
  transition: color 0.2s;
}
.cross-domain-link:hover { color: var(--teal-600); }
.cross-domain-link svg { width: 16px; height: 16px; }

/* Research stats */
.research-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem;
}
.stat-card {
  background: linear-gradient(135deg, var(--blue-50), var(--teal-50));
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}
.stat-card .stat-number { font-size: 2.5rem; font-weight: 700; color: var(--blue-900); margin-bottom: 0.5rem; }
.stat-card .stat-label { font-size: 0.875rem; color: var(--gray-700); }

/* Innovation steps */
.innovation-steps { display: flex; flex-direction: column; gap: 1.5rem; }
.innovation-step { display: flex; gap: 1rem; }
.step-number {
  flex-shrink: 0; width: 2.5rem; height: 2.5rem;
  background: var(--blue-900); color: var(--white);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.step-title { font-weight: 700; color: var(--gray-900); margin-bottom: 0.25rem; }
.step-desc { font-size: 0.875rem; color: var(--gray-600); }

/* =====================================================================
   PRODUCTS PAGE
   ===================================================================== */
.product-detail {
  display: grid; grid-template-columns: 1fr; gap: 3rem;
  align-items: flex-start; margin-bottom: 5rem;
}
@media (min-width: 1024px) {
  .product-detail { grid-template-columns: 1fr 1fr; }
}
.product-detail:last-child { margin-bottom: 0; }
.product-detail h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); color: var(--gray-900); margin-bottom: 0.75rem; }
.product-tagline { font-size: 1.25rem; color: var(--teal-600); font-weight: 600; margin-bottom: 1.5rem; }
.product-desc { font-size: 1.125rem; color: var(--gray-700); line-height: 1.7; margin-bottom: 2rem; }
.product-features h3 { font-size: 1.125rem; font-weight: 700; color: var(--gray-900); margin-bottom: 1rem; }
.product-features ul { margin-bottom: 2rem; }
.product-features li {
  display: flex; align-items: flex-start; gap: 0.75rem;
  margin-bottom: 0.75rem; color: var(--gray-700);
}
.product-features li svg { color: var(--teal-600); margin-top: 0.125rem; flex-shrink: 0; width: 20px; height: 20px; }
.product-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 2rem; }
.product-visual {
  background: linear-gradient(135deg, var(--blue-50), var(--teal-50));
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-xl);
  min-height: 25rem;
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-500); font-weight: 600;
}
.product-ctas { display: flex; flex-wrap: wrap; gap: 1rem; }

/* Services grid */
.services-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
}
@media (min-width: 768px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
}
.service-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl); padding: 2rem; box-shadow: var(--shadow-sm);
}
.service-card h3 { font-size: 1.25rem; color: var(--gray-900); margin-bottom: 0.75rem; }
.service-card p { color: var(--gray-600); line-height: 1.7; }

/* =====================================================================
   NEWS PAGE
   ===================================================================== */
.news-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
}
@media (min-width: 768px) {
  .news-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .news-grid { grid-template-columns: repeat(3, 1fr); }
}
.news-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl); overflow: hidden;
  transition: box-shadow 0.2s;
}
.news-card:hover { box-shadow: var(--shadow-lg); }
.news-card-image {
  height: 12rem;
  background: linear-gradient(135deg, var(--blue-900), var(--teal-600));
  display: flex; align-items: center; justify-content: center;
  color: var(--white); font-weight: 700; font-size: 2.5rem;
}
.news-card-body { padding: 1.5rem; }
.news-card-meta { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; }
.news-category {
  padding: 0.25rem 0.75rem;
  background: var(--teal-50); color: var(--teal-700);
  font-size: 0.75rem; font-weight: 600; border-radius: var(--radius-full);
}
.news-date { display: flex; align-items: center; gap: 0.25rem; font-size: 0.75rem; color: var(--gray-500); }
.news-date svg { width: 14px; height: 14px; }
.news-card h2 { font-size: 1.25rem; color: var(--gray-900); margin-bottom: 0.75rem; line-height: 1.4; transition: color 0.2s; }
.news-card:hover h2 { color: var(--blue-900); }
.news-card p { font-size: 0.875rem; color: var(--gray-600); line-height: 1.7; margin-bottom: 1rem; }
.news-read-more {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; font-weight: 600; color: var(--blue-900);
  transition: color 0.2s;
}
.news-read-more:hover { color: var(--teal-600); }
.news-read-more svg { width: 16px; height: 16px; }

/* =====================================================================
   ABOUT PAGE
   ===================================================================== */
.mission-vision-grid {
  display: grid; grid-template-columns: 1fr; gap: 3rem;
}
@media (min-width: 1024px) {
  .mission-vision-grid { grid-template-columns: 1fr 1fr; }
}
.mission-card, .vision-card {
  background: linear-gradient(135deg, var(--blue-50), var(--teal-50));
  border: 1px solid var(--blue-100);
  border-radius: var(--radius-xl); padding: 2.5rem;
}
.mission-card svg, .vision-card svg { width: 48px; height: 48px; color: var(--blue-900); margin-bottom: 1.5rem; }
.mission-card h2, .vision-card h2 { font-size: 1.875rem; color: var(--gray-900); margin-bottom: 1rem; }
.mission-card p, .vision-card p { font-size: 1.125rem; color: var(--gray-700); line-height: 1.7; }

.values-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem;
}
@media (min-width: 1024px) {
  .values-grid { grid-template-columns: repeat(4, 1fr); }
}
.value-item { text-align: center; }
.value-icon {
  width: 5rem; height: 5rem;
  background: var(--blue-900); color: var(--white);
  border-radius: var(--radius-xl);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1rem;
}
.value-icon svg { width: 40px; height: 40px; }
.value-item h3 { font-size: 1.25rem; color: var(--gray-900); margin-bottom: 0.75rem; }
.value-item p { color: var(--gray-600); font-size: 0.9375rem; line-height: 1.6; }

/* Timeline */
.timeline { max-width: 56rem; margin: 0 auto; }
.timeline-entry { display: flex; gap: 2rem; }
.timeline-year {
  flex-shrink: 0; width: 8rem;
  text-align: right; font-size: 1.5rem; font-weight: 700;
  color: var(--blue-900);
}
.timeline-line {
  flex-grow: 1;
  border-left: 4px solid var(--teal-600);
  padding-left: 2rem;
  padding-bottom: 3rem;
}
.timeline-entry:last-child .timeline-line {
  border-left-color: var(--blue-900);
  padding-bottom: 0;
}
.timeline-line h3 { font-size: 1.25rem; color: var(--gray-900); margin-bottom: 0.5rem; }
.timeline-line p { color: var(--gray-700); line-height: 1.7; }

/* Stats bar */
.stats-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2rem;
  text-align: center;
}
@media (min-width: 768px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}
.stats-number { font-size: 3rem; font-weight: 700; color: var(--blue-900); margin-bottom: 0.5rem; }
.stats-label { color: var(--gray-600); }

/* =====================================================================
   CONTACT PAGE
   ===================================================================== */
.contact-layout {
  display: grid; grid-template-columns: 1fr; gap: 3rem;
}
@media (min-width: 1024px) {
  .contact-layout { grid-template-columns: 1fr 1fr; }
}
.contact-info-section h2 { font-size: 1.875rem; color: var(--gray-900); margin-bottom: 2rem; }
.contact-info-items { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 3rem; }
.contact-info-item { display: flex; align-items: flex-start; gap: 1rem; }
.contact-icon {
  width: 3rem; height: 3rem;
  background: var(--blue-50); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.contact-icon svg { width: 24px; height: 24px; color: var(--blue-900); }
.contact-info-item h3 { font-weight: 600; color: var(--gray-900); margin-bottom: 0.25rem; }
.contact-info-item a, .contact-info-item p { color: var(--gray-700); line-height: 1.6; }
.contact-info-item a { color: var(--blue-900); }
.contact-info-item a:hover { color: var(--teal-600); }
.contact-socials h3 { font-weight: 600; color: var(--gray-900); margin-bottom: 1rem; }
.contact-social-links { display: flex; gap: 1rem; }
.contact-social-link {
  width: 3rem; height: 3rem;
  background: var(--gray-100); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s; color: var(--gray-700);
}
.contact-social-link:hover { background: var(--blue-900); color: var(--white); }
.contact-social-link svg { width: 20px; height: 20px; }
.contact-map-placeholder {
  margin-top: 3rem;
  background: var(--gray-100); border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl); height: 16rem;
  display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 0.5rem;
  color: var(--gray-500);
}
.contact-map-placeholder svg { width: 48px; height: 48px; color: var(--gray-400); }

/* Contact form */
.contact-form-section h2 { font-size: 1.875rem; color: var(--gray-900); margin-bottom: 2rem; }
.contact-form { display: flex; flex-direction: column; gap: 1.5rem; }
.form-group { display: flex; flex-direction: column; gap: 0.5rem; }
.form-group label { font-size: 0.875rem; font-weight: 600; color: var(--gray-700); }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-family: inherit; font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: var(--white);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue-900);
  box-shadow: 0 0 0 3px rgba(30,58,138,.15);
}
.form-group textarea { resize: vertical; min-height: 8rem; }
.form-note { font-size: 0.875rem; color: var(--gray-600); text-align: center; }

/* Office hours */
.office-hours { max-width: 32rem; margin: 0 auto; text-align: center; }
.office-hours h2 { font-size: 1.5rem; color: var(--gray-900); margin-bottom: 1.5rem; }
.office-hours-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl); padding: 2rem;
}
.office-hours-card p { color: var(--gray-700); margin-bottom: 1rem; }
.office-hours-card p:last-child { font-size: 0.875rem; color: var(--gray-600); margin-bottom: 0; }

/* =====================================================================
   PROJECT DETAILS PAGE
   ===================================================================== */
.project-detail-section {
  padding: 4rem 0 5rem;
}
.project-detail-section h2 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  color: var(--gray-900); margin-bottom: 1.5rem;
}
.project-detail-section p { font-size: 1.125rem; color: var(--gray-700); line-height: 1.7; }
.project-detail-max { max-width: 56rem; }

.results-list { display: flex; flex-direction: column; gap: 1rem; }
.result-item { display: flex; align-items: flex-start; gap: 1rem; }
.result-item svg { color: var(--teal-600); margin-top: 0.25rem; flex-shrink: 0; width: 24px; height: 24px; }
.result-item span { font-size: 1.125rem; color: var(--gray-700); }

.tech-tags { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.tech-tag {
  padding: 0.625rem 1.25rem;
  background: var(--white); color: var(--gray-700);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full); font-weight: 500;
}

.partners-grid {
  display: grid; grid-template-columns: 1fr; gap: 1rem;
}
@media (min-width: 768px) {
  .partners-grid { grid-template-columns: 1fr 1fr; }
}
.partner-card {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 1rem; background: var(--gray-50);
  border: 1px solid var(--gray-200); border-radius: var(--radius-sm);
}
.partner-card svg { color: var(--blue-900); flex-shrink: 0; width: 20px; height: 20px; }
.partner-card span { color: var(--gray-700); }

.publications-list { display: flex; flex-direction: column; gap: 1rem; }
.pub-card {
  background: var(--white); border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg); padding: 1.5rem;
  transition: box-shadow 0.2s;
}
.pub-card:hover { box-shadow: var(--shadow-md, var(--shadow)); }
.pub-card-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; }
.pub-left { display: flex; gap: 1rem; }
.pub-left svg { color: var(--blue-900); margin-top: 0.25rem; flex-shrink: 0; width: 24px; height: 24px; }
.pub-title { font-weight: 700; color: var(--gray-900); margin-bottom: 0.5rem; }
.pub-venue { font-size: 0.875rem; color: var(--gray-600); }
.pub-ext { color: var(--blue-900); flex-shrink: 0; transition: color 0.2s; }
.pub-ext:hover { color: var(--teal-600); }
.pub-ext svg { width: 20px; height: 20px; }

/* CTA dark section */
.section-cta-dark { text-align: center; }
.section-cta-dark h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); margin-bottom: 1.5rem; }
.section-cta-dark p { font-size: 1.25rem; color: #d1d5db; margin-bottom: 2rem; max-width: 40rem; margin-left: auto; margin-right: auto; }

/* =====================================================================
   TWO-COLUMN RESEARCH SECTION
   ===================================================================== */
.research-two-col {
  display: grid; grid-template-columns: 1fr; gap: 3rem;
}
@media (min-width: 1024px) {
  .research-two-col { grid-template-columns: 1fr 1fr; }
}
.research-two-col h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); color: var(--gray-900); margin-bottom: 1.5rem; }
.research-two-col > div > p { font-size: 1.125rem; color: var(--gray-600); line-height: 1.7; margin-bottom: 2rem; }

/* =====================================================================
   FOOTER
   ===================================================================== */
.site-footer { background: var(--gray-900); color: #d1d5db; }
.footer-main { padding: 4rem 0; }
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 3rem;
  margin-bottom: 3rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: repeat(3, 1fr); }
}
.footer-col h3 { color: var(--white); font-size: 1.125rem; margin-bottom: 1rem; }
.footer-col p { font-size: 0.875rem; line-height: 1.7; margin-bottom: 1.5rem; }
.footer-col p a { color: var(--teal-400); }
.footer-col p a:hover { color: #5eead4; }
.footer-social { display: flex; gap: 1rem; }
.footer-social-link {
  width: 2.5rem; height: 2.5rem;
  background: var(--gray-800); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s; color: #d1d5db;
}
.footer-social-link:hover { background: var(--teal-600); }
.footer-social-link svg { width: 18px; height: 18px; }

.footer-address { display: flex; align-items: flex-start; gap: 0.75rem; margin-bottom: 1rem; }
.footer-address svg { color: var(--teal-400); margin-top: 0.25rem; flex-shrink: 0; width: 20px; height: 20px; }
.footer-address-text .company { font-weight: 500; color: var(--white); margin-bottom: 0.25rem; }
.footer-address-text p { font-size: 0.875rem; }
.footer-map-link {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; color: var(--teal-400); transition: color 0.2s;
}
.footer-map-link:hover { color: #5eead4; }
.footer-map-link svg { width: 16px; height: 16px; }

.footer-news-list { display: flex; flex-direction: column; gap: 1rem; }
.footer-news-item .date { font-size: 0.75rem; color: var(--gray-500); margin-bottom: 0.25rem; }
.footer-news-item a {
  font-size: 0.875rem; color: #d1d5db;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
  transition: color 0.2s;
}
.footer-news-item a:hover { color: var(--teal-400); }
.footer-view-all {
  display: inline-block; margin-top: 1rem;
  font-size: 0.875rem; color: var(--teal-400); transition: color 0.2s;
}
.footer-view-all:hover { color: #5eead4; }

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding: 2rem 0;
  display: flex; flex-direction: column; gap: 1rem;
  align-items: center;
}
@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}
.footer-bottom p { font-size: 0.875rem; color: var(--gray-500); }
.footer-legal { display: flex; gap: 1.5rem; }
.footer-legal a { font-size: 0.875rem; color: var(--gray-500); transition: color 0.2s; }
.footer-legal a:hover { color: var(--teal-400); }

/* =====================================================================
   OUR NETWORK (home page partner grid)
   ===================================================================== */
.network-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}
@media (min-width: 640px) {
  .network-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1024px) {
  .network-grid { grid-template-columns: repeat(6, 1fr); }
}
.network-partner-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 1.5rem 1rem;
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, border-color 0.2s;
}
.network-partner-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--blue-100);
}
.network-partner-abbr {
  width: 3.5rem; height: 3.5rem;
  background: linear-gradient(135deg, var(--blue-50), var(--teal-50));
  border: 1px solid var(--blue-100); border-radius: var(--radius-lg);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.75rem; color: var(--blue-900);
  letter-spacing: 0.03em;
}
.network-partner-name {
  font-size: 0.875rem; font-weight: 600; color: var(--gray-700); line-height: 1.3;
}

/* =====================================================================
   GET IN TOUCH (home page contact form section)
   ===================================================================== */
.home-contact-layout {
  display: grid; grid-template-columns: 1fr; gap: 3rem; align-items: flex-start;
}
@media (min-width: 1024px) {
  .home-contact-layout { grid-template-columns: 1fr 1fr; }
}
.home-contact-intro h2 {
  font-size: clamp(2rem, 4vw, 2.75rem); color: var(--gray-900);
  margin-bottom: 1rem; line-height: 1.15;
}
.home-contact-intro > p {
  font-size: 1.125rem; color: var(--gray-600); line-height: 1.7; margin-bottom: 2rem;
}
.home-contact-details {
  display: flex; flex-direction: column; gap: 1rem;
}
.home-contact-details li {
  display: flex; align-items: center; gap: 0.75rem;
  color: var(--gray-700); font-size: 0.9375rem;
}
.home-contact-details svg { width: 20px; height: 20px; color: var(--teal-600); flex-shrink: 0; }
.home-contact-details a { color: var(--blue-900); }
.home-contact-details a:hover { color: var(--teal-600); }
.home-contact-form-wrap {
  background: var(--gray-50);
  border: 1px solid var(--gray-200); border-radius: var(--radius-xl);
  padding: 2rem; box-shadow: var(--shadow-lg);
}

/* =====================================================================
   LINK ARROW UTILITY
   ===================================================================== */
.link-arrow {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.875rem; font-weight: 600; color: var(--blue-900);
  transition: color 0.2s;
}
.link-arrow:hover { color: var(--teal-600); }
.link-arrow svg { width: 16px; height: 16px; }

/* =====================================================================
   SECTION CTA BAR (Home featured projects)
   ===================================================================== */
.section-cta-center { text-align: center; margin-top: 3rem; }

/* =====================================================================
   RESPONSIVE UTILITIES
   ===================================================================== */
@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}
@media (min-width: 768px) {
  .hide-desktop { display: none !important; }
}

/* =====================================================================
   ACCESSIBILITY
   ===================================================================== */
:focus-visible {
  outline: 3px solid var(--blue-900);
  outline-offset: 2px;
  border-radius: 2px;
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

/* Skip link */
.skip-link {
  position: absolute; left: -9999px; top: 1rem;
  background: var(--blue-900); color: var(--white);
  padding: 0.5rem 1rem; border-radius: var(--radius-sm);
  font-weight: 600; z-index: 100;
}
.skip-link:focus { left: 1rem; }