@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700;900&display=swap');

.theme-clair {
    background-color: #f4f4f4;
    color: #111111;
}

.theme-sombre {
    background-color: #111111;
    color: #f4f4f4;
}

body {
    font-family: 'Inter', Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s, color 0.3s;
}

#layout {
    display: flex;
    min-height: 100vh;
}

.nav {
    width: 280px;
    background-color: #e3000f;
    color: #ffffff;
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.nav a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: transform 0.2s;
}

.nav a:hover {
    transform: translateX(10px);
    text-decoration: underline;
}

.nav-logo {
    font-weight: 900;
    font-size: 3rem;
    line-height: 1;
    margin-bottom: 60px;
}

.content {
    flex-grow: 1;
    padding: 60px 8vw;
    max-width: 900px;
}

h1 {
    font-weight: 900;
    font-size: 4.5rem;
    line-height: 0.9;
    letter-spacing: -2px;
    margin-top: 0;
    margin-bottom: 40px;
    text-transform: uppercase;
}

h2 {
    font-weight: 700;
    font-size: 2rem;
    border-bottom: 4px solid #e3000f;
    display: inline-block;
    margin-top: 60px;
    margin-bottom: 20px;
    padding-bottom: 5px;
}

p, ul, ol {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

strong, b {
    font-weight: 900;
}

mark {
    background-color: #e3000f;
    color: #ffffff;
    padding: 0 5px;
}

.bord {
    width: 100%;
    border-collapse: collapse;
    margin-top: 40px;
    margin-bottom: 40px;
    font-size: 1rem;
}

.bord th, .bord td {
    border: 2px solid currentcolor;
    padding: 20px;
    text-align: left;
}

.theme-clair .bord th {
    background-color: #111111; 
    color: #f4f4f4;            
}

.theme-sombre .bord th {
    background-color: #f4f4f4; 
    color: #111111;            
}
.image-center {
    display: block;
    width: 100%;
    height: auto;
    margin: 60px 0;
    filter: grayscale(100%);
    border: 4px solid currentcolor;
}

.btn-theme {
    background-color: #111111;
    color: #ffffff;
    border: none;
    padding: 15px 20px;
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    cursor: pointer;
    margin-top: auto;
    text-transform: uppercase;
    border: 2px solid #ffffff;
}

.theme-sombre .btn-theme {
    background-color: #f4f4f4;
    color: #111111;
    border: 2px solid #111111;
}