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

:root {
  --primary: #0A2647;
  --secondary: #144272;
  --accent: #205295;
  --highlight: #2C74B3;
  --text-dark: #1E293B;
  --text-light: #F8FAFC;
  --bg-color: #F8FAFC;
  --card-bg: #FFFFFF;
  
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

ul {
  list-style: none;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.2rem 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 1000;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  transition: var(--transition);
}

.logo {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo span {
  color: var(--highlight);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links li a {
  font-weight: 500;
  font-size: 1rem;
  color: var(--primary);
  position: relative;
  transition: var(--transition);
}

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

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

.nav-links li a:hover {
  color: var(--highlight);
}

/* Hero Section */
.hero {
  height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 5%;
  background-image: url('assets/hero.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(10, 38, 71, 0.85) 0%, rgba(20, 66, 114, 0.7) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  color: var(--text-light);
  animation: fadeInUp 1s ease forwards;
}

.hero h1 {
  font-size: 4rem;
  margin-bottom: 1rem;
  text-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  font-weight: 300;
  opacity: 0.9;
}

.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: 50px;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background-color: var(--highlight);
  color: var(--text-light);
  box-shadow: 0 10px 20px rgba(44, 116, 179, 0.3);
}

.btn-primary:hover {
  background-color: #3b8bd0;
  transform: translateY(-3px);
  box-shadow: 0 15px 25px rgba(44, 116, 179, 0.4);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-light);
  border: 2px solid var(--text-light);
  margin-left: 1rem;
}

.btn-outline:hover {
  background-color: var(--text-light);
  color: var(--primary);
  transform: translateY(-3px);
}

/* Section Common */
section {
  padding: 6rem 5%;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  color: var(--primary);
  margin-bottom: 3rem;
  position: relative;
}

.section-title::after {
  content: '';
  position: absolute;
  width: 80px;
  height: 4px;
  background: var(--highlight);
  bottom: -15px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 2px;
}

/* About Section */
.about {
  background-color: var(--card-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  font-size: 1.1rem;
  color: #475569;
  margin-bottom: 1.5rem;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  background: rgba(44, 116, 179, 0.1);
  color: var(--highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.feature-item h4 {
  font-size: 1.1rem;
  color: var(--primary);
}

.about-image-wrapper {
  position: relative;
}

.about-img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.1);
  transition: var(--transition);
}

.about-img:hover {
  transform: scale(1.02);
}

.experience-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--primary);
  color: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 15px 30px rgba(10, 38, 71, 0.2);
  text-align: center;
}

.experience-badge h2 {
  font-size: 2.5rem;
  margin-bottom: 0.2rem;
  color: var(--highlight);
}

/* Staff Section */
.staff {
  background-color: var(--bg-color);
}

.staff-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
}

.staff-card {
  background: var(--card-bg);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.02);
}

.staff-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--highlight), var(--primary));
  opacity: 0;
  transition: var(--transition);
}

.staff-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
}

.staff-card:hover::before {
  opacity: 1;
}

.staff-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  background-color: #E2E8F0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: #94A3B8;
  overflow: hidden;
  border: 4px solid white;
  box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

.staff-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.staff-name {
  font-size: 1.4rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.staff-title {
  color: var(--highlight);
  font-weight: 500;
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.staff-desc {
  color: #64748B;
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.social-links a {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  background: #F1F5F9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  transition: var(--transition);
}

.social-links a:hover {
  background: var(--highlight);
  color: white;
  transform: translateY(-3px);
}

/* Research Section */
.research {
  background-color: var(--primary);
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}

.research .section-title {
  color: white;
}

.research .section-title::after {
  background: var(--highlight);
}

.research-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  position: relative;
  z-index: 2;
}

.research-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 2.5rem;
  border-radius: 20px;
  transition: var(--transition);
}

.research-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-5px);
}

.research-icon {
  font-size: 2.5rem;
  color: #60A5FA;
  margin-bottom: 1.5rem;
}

.research-card h3 {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  color: white;
}

.research-card p {
  color: #CBD5E1;
  font-size: 0.95rem;
}

/* Contact Section */
.contact {
  background-color: var(--card-bg);
}

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-info {
  padding-right: 2rem;
}

.info-item {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.info-icon {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(44, 116, 179, 0.1);
  color: var(--highlight);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.info-text h4 {
  font-size: 1.1rem;
  color: var(--primary);
  margin-bottom: 0.3rem;
}

.info-text p {
  color: #64748B;
}

.contact-form {
  background: var(--bg-color);
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 1px solid #E2E8F0;
  border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  background: white;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--highlight);
  box-shadow: 0 0 0 4px rgba(44, 116, 179, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.btn-block {
  width: 100%;
}

/* Footer */
footer {
  background: #06162a;
  color: #94A3B8;
  padding: 3rem 5%;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.05);
}

footer p {
  font-size: 0.9rem;
}

footer .logo {
  justify-content: center;
  margin-bottom: 1.5rem;
  color: white;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 992px) {
  .hero h1 { font-size: 3rem; }
  .about-grid, .contact-container { grid-template-columns: 1fr; gap: 3rem; }
  .about-image-wrapper { margin-top: 2rem; }
  .experience-badge { bottom: 10px; left: 10px; padding: 1.5rem; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2.5rem; }
  .hero p { font-size: 1rem; }
  .btn { padding: 0.8rem 2rem; }
  .section-title { font-size: 2rem; }
}