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

/* VARIABLES */
:root {
    --primary: #0b3c5d;
    --secondary: #328cc1;
    --dark: #1f2933;
    --light: #f9fafb;
    --white: #ffffff;
}

/* GLOBAL */
body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    line-height: 1.6;
    background-color: var(--light);
}

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

.container {
    width: 90%;
    max-width: 1100px;
    margin: auto;
}

/* NAVBAR */
.navbar {
    background: var(--white);
    border-bottom: 1px solid #e5e7eb;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.1rem;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 25px;
    list-style: none;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--dark);
    padding-bottom: 3px;
}

.nav-links a.active,
.nav-links a:hover {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
}

/* HERO */
.hero {
    position: relative;
    min-height: calc(100vh - 70px);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
}

.overlay {
    position: absolute;
    inset: 0;
    background: rgba(11, 60, 93, 0.75);
}

.hero-content {
    position: relative;
    color: var(--white);
    max-width: 700px;
}

.profile-pic {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--white);
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.hero h2 {
    font-size: 1.3rem;
    font-weight: 400;
    color: #dbeafe;
    margin-bottom: 15px;
}

.hero p {
    font-size: 1rem;
    max-width: 600px;
    margin-bottom: 25px;
    color: #e5e7eb;
}

/* BUTTONS */
.hero-actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn {
    background: var(--secondary);
    color: var(--white);
    padding: 12px 22px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.3s ease;
}

.btn:hover {
    background: #256fa8;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--white);
}

.btn-outline:hover {
    background: var(--white);
    color: var(--primary);
}

/* FOOTER */
.footer {
    background: var(--white);
    border-top: 1px solid #e5e7eb;
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    color: #6b7280;
}

/* ===== PUBLICATIONS ===== */

.publications-list {
    list-style: none;
    padding-left: 0;
    max-width: 900px;
}

.publications-list li {
    background: #ffffff;
    border-left: 4px solid var(--primary);
    padding: 18px 20px;
    margin-bottom: 18px;
    border-radius: 6px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.publications-list li:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.publications-list strong {
    color: var(--primary);
}

.publications-list em {
    color: #374151;
}

.publications-list a {
    display: inline-block;
    margin-top: 6px;
    font-size: 0.9rem;
    color: var(--secondary);
    background: rgba(50, 140, 193, 0.1);
    padding: 6px 10px;
    border-radius: 4px;
    transition: background 0.3s ease, color 0.3s ease;
}

.publications-list a:hover {
    background: var(--secondary);
    color: #ffffff;
}


/* RESPONSIVE */
@media (max-width: 768px) {

    .navbar .container {
        flex-direction: column;
        height: auto;
        padding: 15px 0;
    }

    .nav-links {
        margin-top: 10px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero h2 {
        font-size: 1.1rem;
    }

    .profile-pic {
        width: 110px;
        height: 110px;
    }
}

.hero-actions .btn {
    font-size: 0.95rem;
}