/* Reset + Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #0d0d0d;
  color: #eaeaea;
  line-height: 1.7;
  font-weight: 300;
}

/* Navbar */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 6%;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: #bcbcbc;
  text-decoration: none;
  font-weight: 400;
  transition: color 0.3s ease, transform 0.3s ease;
}

.nav-links a:hover {
  color: #fff;
  transform: translateY(-2px);
}

/* Hero */
.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  overflow: hidden;
  background-image: url('/neuralcircuits/img/hero.jpg'); /* <- NEW line */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.25;
}

.overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom right, rgba(0,0,0,0.85), rgba(0,0,0,0.6));
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3;
  max-width: 780px;
  margin-left: 8%;
}

.hero-content h1 {
  line-height: 1.2;
  font-size: 5rem;
  font-weight: 700;
}

.hero-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s ease, transform 1s ease;
}

/* Section styling with subtle gradient */
section {
  padding: 8rem 8% 6rem;
  max-width: 1100px;
  margin: 0 auto;
}

.light-section {
  background: linear-gradient(120deg, #141414, #1a1a1a);
  color: #ddd;
}

.dark-section {
  background: linear-gradient(120deg, #0d0d0d, #121212);
  color: #eaeaea;
}

.content-container {
  max-width: 800px;
  margin: 0 auto;
}

h2 {
  font-size: 2.8rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: #fff;
}

h3 {
  font-size: 1.7rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: #eaeaea;
}

p, li {
  font-size: 1.15rem;
  color: #bbb;
  line-height: 1.9;
}

/* Mission Section */
.mission-text {
  font-size: 1.25rem;
  line-height: 2;
  color: #cfcfcf;
}

/* Research Section (Single Column) */
.research-column {
  padding: 1.5rem;
  margin-bottom: 2rem;
  background-color: rgba(255,255,255,0.03);
  border-radius: 8px;
}

.slide-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-in.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Contact Section */
#contact p {
  font-size: 1.15rem;
  margin-bottom: 1rem;
}

#contact a {
  color: #fff;
  text-decoration: none;
  font-weight: 500;
  transition: 0.3s;
}

#contact a:hover {
  text-decoration: underline;
}

/* Footer */
footer {
  text-align: center;
  padding: 2rem;
  background-color: #0b0b0b;
  color: #777;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}


/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s ease, transform 1s ease;
}

.appear {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-content h1 { font-size: 4rem; }
  h2 { font-size: 2.4rem; }
  h3 { font-size: 1.5rem; }
}

@media (max-width: 768px) {
  .hero-content h1 { font-size: 2.8rem; }
  .nav-links { display: none; }
  nav { justify-content: center; }
  .research-column { padding: 1rem; }
}