:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --accent: #38bdf8;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }

body { background-color: var(--bg-color); color: var(--text-main); line-height: 1.6; }

.container { max-width: 1000px; margin: auto; padding: 50px 20px; }

.navbar { display: flex; justify-content: space-between; padding: 20px 5%; background: rgba(15, 23, 42, 0.9); position: sticky; top: 0; z-index: 100; }
.nav-links { display: flex; list-style: none; }
.nav-links li { margin-left: 20px; }
.nav-links a { color: var(--text-main); text-decoration: none; font-weight: 500; transition: 0.3s; }
.nav-links a:hover { color: var(--accent); }

.hero { text-align: center; padding: 100px 20px; background: linear-gradient(to bottom, #1e293b, #0f172a); }
.profile-pic { width: 180px; height: 180px; border-radius: 50%; border: 4px solid var(--accent); margin-bottom: 20px; object-fit: cover; }
.subtitle { color: var(--text-dim); font-size: 1.2rem; margin-top: 10px; }

.section-title { border-left: 4px solid var(--accent); padding-left: 15px; margin-bottom: 30px; font-size: 2rem; }

.card { background: var(--card-bg); padding: 25px; border-radius: 12px; margin-bottom: 20px; border: 1px solid #334155; }
.date { color: var(--accent); font-weight: bold; font-size: 0.9rem; }

.tech-stack { margin-top: 15px; font-size: 0.85rem; color: var(--accent); font-family: monospace; }

footer { text-align: center; padding: 40px; color: var(--text-dim); font-size: 0.9rem; }

/* Responsive adjustments */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .hero h1 { font-size: 1.8rem; }
}

/* Social Icons Styling */
.social-icons {
    margin-top: 20px;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 55px;
    height: 55px;
    margin: 0 12px;
    font-size: 24px;              /* icon size */
    color: var(--text-main);
    background: var(--card-bg);
    border-radius: 50%;
    border: 1px solid #334155;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background: var(--accent);
    color: #0f172a;
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 25px rgba(56, 189, 248, 0.3);
}
.logo {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-main);
}

footer {
    background: #0b1220;
    padding: 50px 20px;
    text-align: center;
    border-top: 1px solid #1e293b;
}

.footer-content p {
    margin: 8px 0;
    color: var(--text-dim);
}

footer a {
    color: var(--accent);
    text-decoration: none;
    transition: 0.3s ease;
}

footer a:hover {
    text-decoration: underline;
}
#publications .card {
    border-left: 4px solid var(--accent);
}

#publications a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

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

.achievement-list {
    list-style: none;
    padding-left: 0;
}

.achievement-list li {
    margin-bottom: 14px;
    padding-left: 18px;
    position: relative;
    color: var(--text-main);
}

.achievement-list li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--accent);
}