* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    color: #ffffff;
    background: url("/images/vault101-bg.webp") no-repeat center center fixed;
    background-size: cover;
}

.overlay {
    background: rgba(0, 20, 40, 0.75);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    padding: 20px 40px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 600;
    font-size: 20px;
    text-decoration: none;
    color: #ffffff;
    letter-spacing: 1px;
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 24px;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    text-decoration: none;
    color: #dddddd;
    font-weight: 500;
}

.nav-menu a:hover {
    color: #ffffff;
}

main {
    flex: 1;
    max-width: 900px;
    margin: auto;
    text-align: center;
    padding: 40px 20px;
}

h1 {
    font-size: 42px;
    margin-bottom: 30px;
    letter-spacing: 2px;
}

h2 {
    margin-top: 40px;
}

p {
    font-size: 18px;
    line-height: 1.7;
    margin-bottom: 20px;
}

article {
    margin-top: 40px;
}

.breadcrumb {
    font-size: 14px;
    margin-bottom: 20px;
    color: #bbbbbb;
}

footer {
    padding: 25px;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.15);
    font-size: 14px;
    color: #cccccc;
}

.footer-nav a {
    color: #cccccc;
    text-decoration: none;
    margin: 0 10px;
}

.footer-nav a:hover {
    color: #ffffff;
}
/* --- Corporate Link Styling --- */

a {
    color: #d6e4ff;
    text-decoration: none;
    transition: all 0.25s ease;
}

a:hover {
    color: #ffffff;
    text-shadow: 0 0 6px rgba(255,255,255,0.4);
}

/* Publication titles */
main article h2 a {
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.5px;
}

/* Email link */
#emailContainer a {
    display: inline-block;
    margin-top: 10px;
    padding: 8px 14px;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    color: #ffffff;
    background: rgba(255,255,255,0.05);
}

#emailContainer a:hover {
    background: rgba(255,255,255,0.12);
    text-shadow: none;
}