html, body {
    height: 100%;
}

body {
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-top: 56px;
}

.navbar {
    min-height: 56px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1030;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.4rem;
    line-height: 1.2;
    padding-top: 0.3125rem;
    padding-bottom: 0.3125rem;
}

.navbar-nav .nav-link {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.card {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    border: none;
}

.card-header {
    font-weight: 600;
}

main, .container {
    flex: 1 0 auto;
}

footer {
    flex-shrink: 0;
    margin-top: 2rem;
}