:root {
  /* Brand Colors */
  --tecnico-blue: #009DE0;
  --tecnico-blue-light: #33b1e6;
  --slate-dark-gray: #46555F;
  --slate-gray-light: #5f707d;

  /* Neutral Palette */
  --bg-color: #FFFFFF;
  --bg-light: #f5f7f9;
  --text-main: #2C353C;
  /* Slightly darker than slate for legibility */
  --text-muted: #71808b;
  --border-color: #e2e8f0;

  /* Typography */
  --font-family: 'Source Sans 3', sans-serif;

  /* Spacing */
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;

  /* Layout */
  --container-width: 1200px;

  /* Transitions */
  --transition-normal: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --transition-fast: 0.15s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  color: var(--text-main);
  background-color: var(--bg-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Rules */
h1,
h2,
h3,
h4 {
  color: var(--slate-dark-gray);
  font-weight: 700;
  letter-spacing: -0.02em;
}

p {
  font-weight: 400;
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--tecnico-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--tecnico-blue-light);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Components */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 2px solid transparent;
}

.btn-primary {
  background-color: var(--tecnico-blue);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--tecnico-blue-light);
  transform: translateY(-2px);
  /* Note: Manual prohibits drop shadows, so we use transform instead */
  color: #fff;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  padding: var(--spacing-sm) 0;
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-logo {
  height: 78px;
  width: auto;
  display: block;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--spacing-lg);
}

.nav-links a {
  color: var(--slate-dark-gray);
  font-weight: 600;
  font-size: 1rem;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--tecnico-blue);
  transition: width var(--transition-normal);
}

.nav-links a.active::after,
.nav-links a:hover::after {
  width: 100%;
}

/* Hero Section */
.hero {
  padding: 180px 0 180px;
  background-color: var(--bg-light);
  position: relative;
  overflow: hidden;
  min-height: 80vh;
  display: flex;
  align-items: center;
}

.hero-content {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.hero-text-wrapper {
  max-width: 700px;
}

.hero h1 {
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  color: var(--slate-dark-gray);
}

.hero h1 span {
  color: var(--tecnico-blue);
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

/* Flat Geometric Decorations instead of gradients */
.hero-decoration {
  position: absolute;
  border-radius: 50%;
  opacity: 0.1;
  z-index: 1;
}

.shape-1 {
  width: 600px;
  height: 600px;
  background-color: var(--tecnico-blue);
  top: -100px;
  right: -100px;
}

.shape-2 {
  width: 400px;
  height: 400px;
  border: 40px solid var(--slate-dark-gray);
  bottom: -100px;
  left: 50%;
  background-color: transparent;
}

/* Sections */
.bg-light {
  background-color: var(--bg-light);
}

section {
  padding: var(--spacing-xl) 0;
}

.section-padding {
  padding-top: 140px;
  min-height: 80vh;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  text-align: center;
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: var(--spacing-xl);
  font-size: 1.125rem;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.about-card {
  background-color: var(--bg-color);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.about-card:hover {
  transform: translateY(-5px);
  border-color: var(--tecnico-blue);
}

.about-card h3 {
  color: var(--tecnico-blue);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

/* Team Grid */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

/* Dynamic Team Cards */
.team-card {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: var(--spacing-lg);
  text-align: center;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.team-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background-color: var(--tecnico-blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.team-card:hover {
  transform: translateY(-5px);
  border-color: var(--tecnico-blue-light);
}

.team-card:hover::before {
  transform: scaleX(1);
}

.avatar-placeholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-color: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--tecnico-blue);
  border: 2px solid var(--border-color);
}

.avatar-imgholder {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-color: var(--bg-light);
  background-size: cover;
  background-position: center;
  margin: 0 auto var(--spacing-md);
  border: 2px solid var(--border-color);
}

.team-info h3 {
  margin-bottom: 0.25rem;
  font-size: 1.25rem;
}

.team-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--bg-light);
  color: var(--slate-dark-gray);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.team-date {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Loader */
.loader {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-weight: 600;
  grid-column: 1 / -1;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 0.6;
  }

  50% {
    opacity: 1;
  }
}

/* Footer */
.footer {
  background-color: var(--slate-dark-gray);
  color: #fff;
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.funding-logos {
  display: flex;
  gap: 2rem;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.funding-logos img {
  height: 60px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
}

.funding-logos img:nth-child(2) {
  height: 36px;
  /* Reduced by 40% per user request */
}

.footer-brand p {
  color: #c9d1d6;
  margin-bottom: 0.25rem;
}

.footer-brand .small-text {
  font-size: 0.875rem;
  color: #a0aeb8;
}

.footer-links {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  width: 100%;
}

.footer-links p {
  color: #a0aeb8;
  font-size: 0.875rem;
  margin: 0;
}

/* Animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }

  .nav-links {
    display: none;
    /* In a full app, a hamburger menu would be added here */
  }

  .hero {
    padding: 120px 0 60px;
  }
}