:root {
    /* Couleurs */
    --color-background: #1e1e1e;
    --color-sidebar-bg: #2e2e2e;
    --color-primary: #FFD700;
    --color-text: #fff;
    --color-error: red;
    --color-success: green;
    --color-border: #ccc;

    /* Tailles */
    --max-width-content: 1000px;
    --width-section: 800px;
    --img-fluid-width: 700px;
    --sidebar-width: 400px;
    --menu-left-hidden: -450px;
    --menu-tab-left: -5px;
    --font-base: 18px;
}

/* Layout principal */
.content-learning {
    max-width: var(--max-width-content);
    margin: 50px auto;
    padding: 50px;
    background-color: var(--color-background);
    border-radius: 5px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
    color: var(--color-text);
    box-sizing: border-box;
}

.section-content {
    width: var(--width-section);
}

.learning-layout {
    position: relative;
    display: flex;
    gap: 20px;
}

/* Menu latéral */
.learning-menu {
    position: fixed;
    top: 0;
    left: var(--menu-left-hidden);
    width: var(--sidebar-width);
    height: 100%;
    padding: 20px;
    background-color: var(--color-sidebar-bg);
    border-radius: 0 5px 5px 0;
    box-sizing: border-box;
    transition: left 0.3s ease;
    overflow-y: auto;
    z-index: 1000;
}

.learning-menu.open {
    left: 0;
}

.learning-menu a {
    color: var(--color-text);
}

#menu-toggle-tab {
    position: fixed;
    top: 50%;
    left: var(--menu-tab-left);
    transform: translateY(-50%);
    background-color: var(--color-sidebar-bg);
    color: var(--color-primary);
    padding: 10px;
    cursor: pointer;
    border-radius: 0 5px 5px 0;
    z-index: 1100;
    transition: left 0.3s ease;
}

.learning-content {
    flex: 1;
    box-sizing: border-box;
    transition: margin-left 0.3s ease;
    color: var(--color-text);
}

.learning-menu:not(.open)~.tutorial-content {
    margin-left: 20px;
}

/* Titres */
.content-learning h1,
.content-learning h2,
.content-learning h3,
.content-learning h4,
.content-learning h5 {
    color: var(--color-primary);
    margin-top: 10px;
    margin-bottom: 10px;
}

.content-learning h1 {
    text-align: center;
    margin-bottom: 30px;
}

.content-learning h2 {
    font-size: 30px;
    margin-bottom: 15px;
}

.content-learning h3 {
    font-size: 25px;
}

.content-learning h4 {
    font-size: 20px;
}

.content-learning h5 {
    font-size: 18px;
}

/* Paragraphes */
.content-learning p {
    width: 85%;
    font-size: var(--font-base);
    margin-bottom: 10px;
}

/* Boutons & liens */
.btnSeeAll {
    background: none;
    border: none;
    color: var(--color-text);
    margin: auto;
    cursor: pointer;
}

.btnSeeAll:hover,
.content-learning a:hover {
    color: var(--color-primary);
}

.link-learning-img {
    color: var(--color-primary);
}

/* Recherche */
.search-learning {
    margin-bottom: 10px;
}

.search-input-learning {
    background: none;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    border-left: none;
    border-right: none;
    width: 100%;
    padding: 5px 15px;
    color: var(--color-text);
    font-size: 14px;
    border-radius: 0;
    box-sizing: border-box;
    margin-bottom: 20px;
    outline: none;
}

.search-input-learning:focus,
.search-input-learning:hover,
.search-input-learning:active {
    border-color: var(--color-primary);
    background: none;
    color: var(--color-text);
}

/* Composants */
.image-block {
    width: 100%;
    text-align: center;
}

.img-fluid {
    width: var(--img-fluid-width);
    height: auto;
    margin: auto;
}

.img-learning {
    border: 1px solid var(--color-text);
    border-radius: 5px;
}

.div-img-learning {
    display: flex !important;
    flex-direction: column !important;
    text-align: center !important;
}

/* Modal */
.learning-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.learning-modal img {
    max-width: 70%;
    max-height: 70%;
}

/* Contenu structuré */
.description,
.solution,
.error_content {
    width: 100%;
    display: flex;
    flex-direction: column;
}

.description,
.solution {
    margin-left: 50px;
}

.span_description {
    font-size: 25px;
    font-weight: bold;
    color: var(--color-error);
    margin-left: 25px;
    margin-bottom: 5px;
    text-align: start;
}

.span_solution {
    font-size: 25px;
    font-weight: bold;
    color: var(--color-success);
    margin-left: 25px;
    margin-bottom: 5px;
    text-align: start;
}

.title_error {
    color: var(--color-primary);
}

.learning-item {
    margin-bottom: 30px;
}

.learning-item ul {
    list-style-type: none;
}

.tutorial-menu nav ul li {
    margin-bottom: 10px;
}