body {
    font-family: 'Arial', sans-serif;
}

header {
    border-bottom: 1px solid #ddd;
}

.navbar-brand {
    font-weight: bold;
}

.navbar-nav .nav-link.active {
    font-weight: bold;
}

main {
    padding-top: 3rem;
}

h1,
h2 {
    font-weight: bold;
}

.hero-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero-text {
    max-width: 500px;
}

.hero-buttons .btn {
    margin-right: 1rem;
    padding: 0.75rem 2rem;
    border-radius: 0;
    font-weight: bold;
}

.btn-learn {
    background-color: white;
    border: 2px solid black;
    color: black;
}

.btn-learn:hover {
    background-color: #f8f9fa;
}

.btn-started {
    background-color: black;
    border: 2px solid black;
    color: white;
}

.form-section {
    margin-top: 5rem;
    border-top: 1px solid #ddd;
    padding-top: 4rem;
}

form .form-label {
    font-weight: bold;
}

form .form-text {
    font-size: 0.9rem;
    color: #6c757d;
}

.form-buttons .btn {
    border-radius: 0;
    padding: 0.75rem 2rem;
    font-weight: bold;
}

.btn-reset {
    background-color: white;
    border: 2px solid black;
    color: black;
}

.btn-submit {
    background-color: black;
    border: 2px solid black;
    color: white;
}

footer {
    margin-top: 5rem;
    border-top: 1px solid #ddd;
}

.btn-custom {
    background-color: #f2f2f2;
    color: black;
    border: 1px solid #ccc;
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: background-color 0.2s;
}

.btn-custom:hover {
    background-color: #e6e6e6;
}

.card-img-container {
    height: 300px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
}

.card-img-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-body {
    min-height: 150px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.documentation-section {
    margin-bottom: 3rem;
}

.section-title {
    border-bottom: 2px solid #dee2e6;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.topic-card {
    margin-bottom: 1.5rem;
    border-radius: 0.5rem;
}

.topic-title {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.topic-description {
    color: #6c757d;
}

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: #000;
    color: white;
    padding: 10px;
    z-index: 100;
}

.skip-link:focus {
    left: 0;
}

:root {
    --text-color: #212529;
    --background-color: #ffffff;
    --link-color: #0d6efd;
    --link-hover-color: #0a58ca;
}

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

a {
    color: var(--link-color);
}

a:hover {
    color: var(--link-hover-color);
}

.card {
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

.carousel-img-limited {
    max-width: 300px;
    max-height: 200px;
    object-fit: contain;
}

.content-link:link,
.content-link:active {
    color: #0069d9;            
    text-decoration: underline;
    font-weight: 500;
}

.content-link:visited {
    color: #868e96;         
    text-decoration: underline;
    font-weight: 400;
}

.access-high-contrast {
    background: #000 !important;
    color: #fff !important;
    font-size: 1.5em !important;
    letter-spacing: 0.05em;
}
.access-high-contrast a,
.access-high-contrast a:visited {
    color: #ffff00 !important;
    text-decoration: underline !important;
}
.access-high-contrast .btn,
.access-high-contrast button,
.access-high-contrast .form-control {
    background: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}
.access-high-contrast input,
.access-high-contrast textarea,
.access-high-contrast select {
    background: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}
.access-high-contrast header,
.access-high-contrast nav,
.access-high-contrast footer,
.access-high-contrast aside {
    background: #000 !important;
    color: #fff !important;
    border-color: #fff !important;
}
.access-high-contrast .form-label {
    font-size: 1.2em !important;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}