@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;600&family=JetBrains+Mono:wght@300;400;600;700&display=swap');

:root {
  --bg: #030712;
  --secondary: #0b0f19;
  --primary: #00e5ff;
  --text: #f3f4f6;
  --border: #1f2937;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: var(--font-mono); -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
.container { max-width: 1000px; margin: 0 auto; padding: 0 30px; }

/* Navbar */
.navbar { border-bottom: 1px solid var(--border); padding: 30px 0; background: var(--bg); }
.nav-container { display: flex; justify-content: space-between; align-items: center; max-width: 1200px; margin: 0 auto; padding: 0 30px; }
.logo { font-size: 1.2rem; font-weight: 700; color: var(--primary); }
.logo span { color: #fff; font-weight: 400; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { font-size: 0.85rem; font-weight: 600; color: #9ca3af; transition: color 0.3s; }
.nav-links a:hover { color: var(--primary); }

/* Hero */
.hero { min-height: 70vh; display: flex; align-items: center; border-bottom: 1px solid var(--border); }
.hero-wrapper { max-width: 750px; }
.badge { display: inline-block; color: var(--primary); font-size: 0.85rem; font-weight: 700; margin-bottom: 25px; letter-spacing: 1px; }
.hero h1 { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 600; line-height: 1.15; margin-bottom: 25px; color: #fff; }
.hero p { color: #9ca3af; font-size: 1.1rem; line-height: 1.7; }

/* Sections */
.section { padding: 100px 0; border-bottom: 1px solid var(--border); }
.section-title { font-size: 2rem; color: #fff; margin-bottom: 50px; text-align: center; }

/* Grid & Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }
.card { background: var(--secondary); padding: 30px; border: 1px solid var(--border); border-radius: 4px; display: flex; flex-direction: column; justify-content: space-between; }
.card h3 { color: var(--primary); font-size: 1.3rem; margin-bottom: 15px; }
.card p { color: #9ca3af; font-size: 0.95rem; line-height: 1.6; margin-bottom: 25px; }
.tech { color: #fff; font-size: 0.85rem; font-weight: 600; }

/* Publications */
.pub-list { display: flex; flex-direction: column; gap: 40px; }
.pub-card { background: var(--secondary); padding: 30px; border: 1px solid var(--border); border-radius: 4px; }
.pub-card .meta { color: var(--primary); font-size: 0.85rem; display: block; margin-bottom: 10px; font-weight: 600; }
.pub-card h3 { color: #fff; font-size: 1.3rem; margin-bottom: 10px; font-weight: 600; }
.pub-card .authors { color: #9ca3af; font-size: 0.95rem; margin-bottom: 20px; }
.btn-link { color: var(--primary); text-decoration: underline; margin-right: 15px; font-size: 0.9rem; }

/* Contact Form */
.form-container { max-width: 600px; margin: 0 auto; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.contact-form input, .contact-form textarea { width: 100%; padding: 15px; background: var(--secondary); border: 1px solid var(--border); font-family: var(--font-mono); color: #fff; outline: none; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--primary); }
.btn { display: inline-block; padding: 15px 35px; background: transparent; border: 1.5px solid var(--primary); color: var(--primary); font-weight: 600; font-family: var(--font-mono); cursor: pointer; transition: background 0.3s, color 0.3s; }
.btn:hover { background: var(--primary); color: #000; }

.footer { text-align: center; padding: 60px 0; background: var(--secondary); color: #64748b; font-size: 0.8rem; border-top: 1px solid var(--border); }

@media (max-width: 768px) {
  .nav-container { flex-direction: column; gap: 20px; }
}