/* --- Root Variables --- */
:root {
  --primary-navy: #002d62;
  --accent-teal: #008080;
  --bg-light: #f9fafb;
  --bg-white: #ffffff;
  --text-main: #1f2937;
  --text-muted: #4b5563;
  --border-light: #e5e7eb;
  --white: #ffffff;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;

}

.logo-image {
  height: 100px;
  width: auto;
}
/* --- Global Resets --- */
html {
  scroll-behavior: smooth;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-white);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

/* --- Header / Navigation --- */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 8%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 1000;
  border-bottom: 1px solid var(--border-light);
  flex-wrap: wrap;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--primary-navy);
}

.logo span {
  border-left: 3px solid var(--accent-teal);
  padding-left: 12px;
}

/* Desktop nav */
.desktop-nav {
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--accent-teal);
}

.nav-links a.active {
  color: var(--accent-teal) !important;
  font-weight: 700;
  border-bottom: 2px solid var(--accent-teal);
}

/* Mission Button (Nav) */
.btn-mission-nav {
  background-color: var(--accent-teal) !important;
  color: #ffffff !important;
  padding: 10px 22px !important;
  border-radius: 6px;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.85rem;
  transition: all 0.3s ease;
  display: inline-block;
  text-decoration: none;
}

.btn-mission-nav:hover {
  background-color: var(--primary-navy) !important;
  transform: translateY(-2px);
}

/* --- Mobile Menu Styles --- */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: #000;
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

.mobile-nav-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 350px;
  height: 100vh;
  background: var(--primary-navy, #001f3f);
  backdrop-filter: blur(10px);
  transition: right 0.3s ease;
  z-index: 1000;
  padding: 80px 20px 20px;
  box-shadow: -5px 0 20px rgba(0,0,0,0.3);
}

.mobile-nav-menu.active {
  right: 0;
}

.mobile-nav-menu ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.mobile-nav-menu li {
  margin-bottom: 15px;
}

.mobile-nav-menu a {
  color: #fff;
  text-decoration: none;
  font-size: 1.1rem;
  font-weight: 500;
  padding: 12px 0;
  display: block;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  transition: all 0.3s ease;
}

.mobile-nav-menu a:hover,
.mobile-nav-menu a.active {
  color: var(--accent-teal, #00b4d8);
  padding-left: 10px;
  border-bottom-color: var(--accent-teal, #00b4d8);
}

.mobile-nav-menu .btn-mission-nav {
  background: var(--accent-teal, #00b4d8) !important;
  color: white !important;
  padding: 15px 20px !important;
  border-radius: 8px;
  font-size: 1rem;
  margin-top: 20px;
  text-align: center;
  display: block; 
}

.mobile-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* --- Scroll Top Button --- */
.scroll-top-btn {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background-color: var(--accent-teal);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: none;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  z-index: 9999;
  transition: all 0.3s ease;
}

/* --- Hero Section --- */
.hero {
  position: relative;
  height: 70vh;
  background-size: cover;
  background-position: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 8%;
  color: #ffffff;
  text-align: left;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0, 45, 98, 0.9) 30%, rgba(0, 45, 98, 0.3));
  z-index: 1;
}

/* Specific Hero Backgrounds (Extracted from inline styles) */
.hero-index { background-image: url('img/homepageheader03.jpg'); }
.hero-about { background-image: url('img/aboutpageheader.jpg'); }
.hero-research-page { background-image: url('img/researchpageheader.jpg'); }
.hero-collaborations { background-image: url('img/collaborationpageheader.jpg'); }
.hero-publications { background-image: url('img/publicationageheader.jpg'); }
.hero-contact { background-image: url('img/contactpageheader.jpg'); }
.hero-people { background-image: linear-gradient(rgba(0,31,63,0.7), rgba(0,31,63,0.7)), url('img/peoplepageheader.jpg'); }

.hero-content {
  max-width: 800px;
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 25px;
}

.hero p {
  font-size: 1.1rem;
  margin-bottom: 35px;
  opacity: 0.9;
}

/* Text Shadows for Hero text */
.text-shadow-strong { text-shadow: 2px 2px 4px rgba(0,0,0,0.5); }
.text-shadow-soft { text-shadow: 1px 1px 2px rgba(0,0,0,0.5); }

.hero-buttons {
  display: flex;
  gap: 20px;
}

/* --- Common Sections --- */
.section {
    padding: 100px 8%;
}

.mission-section,
.overview-split,
.research-section,
.unique-section {
  padding: 100px 8%;
}

.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--bg-white); }
.bg-navy { background-color: var(--primary-navy); }

/* Split Wrapper */
.split-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: center;
  max-width: 1300px;
  margin: 0 auto;
}

.split-wrapper.equal-split {
    grid-template-columns: 1fr 1fr;
}

.split-text {
  text-align: left;
}

.split-text h4 {
  color: var(--accent-teal);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 800;
  margin-bottom: 15px;
}

.split-text h2 {
  font-size: 2.5rem;
  color: var(--primary-navy);
  font-weight: 800;
  margin-bottom: 25px;
  line-height: 1.2;
}

.split-image img {
  width: 100%;
  border-radius: 12px;
  box-shadow: 20px 20px 0px var(--bg-white);
  display: block;
}

/* --- Research / Grid Layouts --- */
.grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-top: 6px solid var(--primary-navy);
  padding: 40px 30px;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  border-top-color: var(--accent-teal);
}

.card h3 {
  font-size: 1.35rem;
  color: var(--primary-navy);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.3;
}

.card-teal-border {
    border-top: 6px solid var(--accent-teal);
}

.focus-list {
    margin-top: 20px;
}

.focus-list li {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-left: 20px;
  position: relative;
}

.focus-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-teal);
  font-weight: bold;
}

/* --- Detailed Research Sections (from research.html) --- */
.detail-section { 
    padding: 80px 8%; 
    border-bottom: 1px solid #eee; 
    scroll-margin-top: 80px; 
}

.detail-section:nth-child(even) { 
    background-color: #f8fafc; 
}

.detail-content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
    max-width: 1200px;
    margin: 0 auto;
}

.detail-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

.detail-text h2 { color: var(--primary-navy); font-size: 2.2rem; margin-bottom: 20px; font-weight: 800; }
.detail-text h3 { color: var(--accent-teal); font-size: 1.2rem; margin-bottom: 15px; text-transform: uppercase; letter-spacing: 1.5px; font-weight: 700; }
.detail-text h4 { color: var(--primary-navy); font-size: 1.4rem; margin-bottom: 15px; font-weight: 700; line-height: 1.3; }
.detail-text p { line-height: 1.8; color: var(--text-muted); margin-bottom: 15px; font-size: 1.05rem; }
.detail-text ul { margin-bottom: 20px; padding-left: 20px; list-style-type: disc; }
.detail-text li { margin-bottom: 10px; color: var(--text-muted); line-height: 1.6; }

.pillar-image { height: 200px; background-size: cover; background-position: center; border-radius: 12px; margin-bottom: 20px; }
.pillar-content { flex-grow: 1; }
.pillar-list { padding-left: 0; margin-bottom: 25px; list-style: none; }
.pillar-list li { font-size: 0.95rem; margin-bottom: 12px; padding-left: 20px; position: relative; color: var(--text-muted); }
.pillar-list li::before { content: "→"; color: var(--accent-teal); font-weight: bold; position: absolute; left: 0; }
.pillar-link { font-weight: 600; font-size: 1rem; color: var(--accent-teal); display: inline-flex; align-items: center; gap: 8px; }
.focus-label { display: inline-block; background: var(--bg-light); padding: 4px 10px; border-radius: 4px; font-size: 0.75rem; font-weight: 700; color: var(--primary-navy); margin-bottom: 10px; text-transform: uppercase; border: 1px solid var(--border-light); }
.read-more { color: var(--accent-teal); font-weight: 700; display: inline-flex; align-items: center; gap: 8px; }

/* --- Collaborations Tables --- */
.use-case-table { width: 100%; border-collapse: collapse; margin-top: 30px; background: white; }
.use-case-table th, .use-case-table td { padding: 15px; border: 1px solid var(--border-light); text-align: left; vertical-align: top; }
.use-case-table th { background-color: var(--primary-navy); color: white; }
.use-case-table ul { padding-left: 20px; list-style-type: disc; margin: 0; }
.use-case-table li { font-size: 0.9rem; margin-bottom: 5px; color: var(--text-main); }
.table-responsive { overflow-x: auto; }

/* --- People / Talent Page --- */
.talent-section { padding: 100px 8%; background-color: var(--white); }
.talent-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: 40px; }
.talent-card { padding: 25px; background: var(--bg-light); border-radius: 8px; border-left: 4px solid var(--accent-teal); transition: 0.3s; }
.talent-card:hover { transform: translateY(-5px); background: var(--white); box-shadow: 0 10px 25px rgba(0,0,0,0.05); }
.talent-card h4 { color: var(--primary-navy); font-weight: 700; margin: 0; font-size: 1.1rem; }

.hiring-section { padding: 80px 8%; background-color: var(--bg-light); }
.hiring-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.hiring-list { list-style: none; padding: 0; }
.hiring-list li { margin-bottom: 15px; font-size: 1.1rem; font-weight: 600; color: var(--primary-navy); display: flex; align-items: center; gap: 15px; }
.hiring-list li i { color: var(--accent-teal); font-size: 1.2rem; }

.cta-box { text-align: center; padding: 60px; background: var(--primary-navy); color: white; border-radius: 12px; margin-top: 60px; }
.cta-box h3 { font-size: 1.8rem; margin-bottom: 15px; }
.cta-box a { color: var(--accent-teal); font-weight: 700; text-decoration: none; font-size: 1.2rem; border-bottom: 2px solid transparent; transition: 0.3s; }
.cta-box a:hover { border-bottom-color: var(--accent-teal); }

/* --- Contact Page --- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; padding: 100px 8%; }
.form-group { margin-bottom: 20px; text-align: left; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group textarea { width: 100%; padding: 12px; border: 1px solid var(--border-light); border-radius: 4px; font-family: inherit; }

/* --- About Page Specifics --- */
.research-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 25px; }
.badge { background: var(--bg-light); padding: 8px 15px; border-radius: 20px; font-size: 0.85rem; font-weight: 600; color: var(--primary-navy); border: 1px solid var(--border-light); }

.ecosystem-feature { padding: 80px 8%; background-color: var(--white); border-top: 1px solid var(--border-light); }
.ecosystem-container { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 50px; background: var(--bg-light); border-radius: 16px; padding: 60px; border: 1px solid var(--border-light); box-shadow: 0 10px 30px rgba(0,0,0,0.02); }
.ecosystem-box h4 { color: var(--accent-teal); text-transform: uppercase; letter-spacing: 2px; font-size: 0.9rem; font-weight: 800; margin-bottom: 20px; display: flex; align-items: center; gap: 12px; }
.ecosystem-box p { font-size: 1.1rem; color: var(--primary-navy); line-height: 1.8; font-weight: 500; }

.principles-section { text-align: center; padding: 100px 8% 60px; }
.principles-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 25px; max-width: 1200px; margin: 50px auto 0; }
.principle-box { padding: 20px 30px; background: var(--white); border: 1px solid var(--border-light); border-radius: 8px; font-weight: 700; color: var(--primary-navy); flex: 1 1 calc(33.333% - 25px); min-width: 300px; max-width: 380px; box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05); border-top: 4px solid var(--accent-teal); text-align: center; display: flex; align-items: center; justify-content: center; min-height: 120px; }

.unique-header { text-align: center; margin-bottom: 70px; }
.unique-header h2 { font-size: 2.5rem; font-weight: 800; color: var(--primary-navy); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 20px; }
.mandate-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; max-width: 1100px; margin: 0 auto 60px; }
.mandate-card { background: var(--bg-light); border: 1px solid var(--border-light); padding: 50px 40px; border-radius: 12px; transition: all 0.3s ease; display: flex; flex-direction: column; align-items: center; text-align: center; }
.icon-circle { font-size: 2.5rem; color: var(--accent-teal); margin-bottom: 15px; }
.mandate-card h4 { font-size: 1.3rem; margin-bottom: 10px; font-weight: 700; color: var(--primary-navy); }

.startup-container { max-width: 1100px; margin: 0 auto; text-align: center; background: var(--bg-light); padding: 80px 40px; border-radius: 16px; border: 1px solid var(--border-light); }
.execution-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 25px; margin-top: 30px; }
.execution-box { padding: 30px; background: var(--white); border: 1px solid var(--border-light); border-radius: 8px; font-size: 1.1rem; font-weight: 700; color: var(--primary-navy); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 15px; }
.execution-box i { color: var(--accent-teal); font-size: 2rem; }

/* --- Global Buttons --- */
.btn {
  padding: 14px 30px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 4px;
  cursor: pointer;
  transition: var(--transition);
  display: inline-block;
  font-size: 0.85rem;
}

.btn-primary {
  background-color: var(--accent-teal);
  color: #fff;
  border: none;
}

.btn-primary:hover {
  background-color: #006666;
}

.btn-secondary {
  border: 2px solid #fff;
  color: #fff;
  background: transparent;
}

.btn-secondary:hover {
  background: #fff;
  color: var(--primary-navy);
}

/* --- Footer --- */
footer {
  background-color: #111827;
  color: #ffffff;
  padding: 80px 8% 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 60px;
}

.footer-section h4 {
  color: var(--accent-teal);
  text-transform: uppercase;
  font-size: 1rem;
  letter-spacing: 1.5px;
  margin-bottom: 25px;
}

.footer-section p {
  margin-bottom: 15px;
  opacity: 0.85;
}

.footer-section ul li + li {
  margin-top: 8px;
}

.footer-section a {
  color: #e5e7eb;
  font-size: 0.95rem;
}

.footer-section a:hover {
  color: #ffffff;
}

.contact-us p {
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0.8;
}

.social-icons a {
    color: white; 
    margin-right: 15px;
    font-size: 1.1rem;
}

.copyright {
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.85rem;
  opacity: 0.5;
}

/* --- Responsive Layouts --- */
@media (max-width: 1100px) {
  .grid-container {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  header { padding: 20px 8%; }
  .nav-links { display: none !important; }
  .mobile-menu-toggle { display: flex; }
  
  .split-wrapper, 
  .ecosystem-container, 
  .mandate-wrapper, 
  .execution-grid,
  .hiring-grid,
  .contact-grid { 
      grid-template-columns: 1fr !important; 
      gap: 30px !important; 
  }
  
  .split-image { order: -1; } /* Image on top for mobile */
  .detail-image { order: -1; }
  
  .grid-container, .detail-content-wrapper {
      grid-template-columns: 1fr !important;
      gap: 40px !important;
  }
  
  footer .footer-grid { grid-template-columns: 1fr !important; gap: 40px; text-align: left; }
  
  .hero h1 { font-size: 1.8rem; }
}

@media (max-width: 768px) {
  /* Ensure header flexes correctly */
  header {
    justify-content: space-between;
  }
  
  .hero {
    padding: 120px 8% 80px;
    height: auto;
    min-height: 60vh;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .hero-buttons .btn {
      width: 100%;
      text-align: center;
  }
  
  .principle-box {
    flex: 1 1 100%;
    max-width: 100%;
  }
}
/* Add this to your style.css */

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch; /* smooth scrolling on iOS */
    margin-top: 30px;
    border: 1px solid var(--border-light); /* optional: subtle border around scroll area */
    border-radius: 8px;
}

/* Ensure the table fills the container but doesn't shrink awkwardly */
.use-case-table {
    width: 100%;
    min-width: 600px; /* Forces scroll on screens smaller than 600px */
    border-collapse: collapse;
}

@media (max-width: 480px) {
  header {
    padding: 12px 5%;
  }

  .hero {
    padding: 100px 5% 60px;
  }

  .mission-section,
  .research-section,
  .unique-section,
  .section {
    padding: 60px 5%;
  }

  .split-wrapper {
    gap: 30px;
  }

  .card {
    padding: 30px 20px;
  }
  
  .detail-section {
      padding: 60px 5%;
  }
}