/* style.css */
:root {
  --bg: #0b0d12;
  --bg-soft: #121521;
  --text: #e8eaf0;
  --muted: #9aa0b5;
  --accent: #6cf2c2;
  --accent-soft: rgba(108, 242, 194, 0.15);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: radial-gradient(1200px 600px at 80% -20%, var(--accent-soft), transparent),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 2rem 4rem;
}

/* header logo */
.logo {
  height: 122px;
  filter: drop-shadow(0 6px 20px rgba(108,242,194,0.25));
}

/* nav links */
nav a {
  color: var(--muted);
  margin-left: 2rem;
  text-decoration: none;
  font-size: 0.95rem;
}

nav a:hover {
  color: var(--text);
}

/* hero */
.hero {
  max-width: 1100px;
  margin: 6rem auto;
  padding: 0 2rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero p {
  max-width: 640px;
  font-size: 1.15rem;
  color: var(--muted);
  margin-bottom: 2.5rem;
}

.cta {
  display: inline-block;
  background: var(--accent);
  color: #08110d;
  padding: 0.9rem 1.4rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(108, 242, 194, 0.25);
}

.cta:hover {
  transform: translateY(-1px);
}

/* sections */
.section {
  max-width: 1100px;
  margin: 6rem auto;
  padding: 0 2rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg-soft);
  padding: 2rem;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.05);
}

.card h3 {
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.card p {
  color: var(--muted);
  font-size: 0.95rem;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 20px;
}

/* new */

.sub-hero {
  padding: 120px 20px 60px;
}

.muted {
  background: #f7f9fb;
}

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

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.research-list {
  line-height: 1.8;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-form input,
.contact-form textarea {
  padding: 14px;
  border: 1px solid #ddd;
  font-family: inherit;
}

.contact-form button {
  align-self: flex-start;
}

footer {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 3rem 2rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}