* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.5;
    padding: 0;
    margin: 0;
}

header {
    background-color: #007bff;
    color: white;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    font-size: 2.5rem;
}

header p {
    font-size: 1.1rem;
    margin-top: 10px;
}

.logo-title {
    vertical-align: top;
    border-radius: 6px;
}

.conseil ul {
    list-style: none;
    padding-left: 15px;
    margin: 1rem auto;
}

.conseil ul li {
    position: relative;
    padding-left: 1.5rem; 
    margin-bottom: 0.8rem;
    line-height: 1.4;
    font-size: 1rem;
}

.conseil ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.6rem; 
    width: 8px;
    height: 8px;
    background-color: #0d6efd; 
    border-radius: 50%;
}

.conseil ul li:hover {
    color: #0d6efd;
    cursor: default;
}

main {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}
.main {
    display: block;
    width: 80%;
    margin: 0 auto;
}
.section {
    display: block;
}
.section h2, .section p {
    padding: 18px 15px;
}
.infos h2, .infos p {
    padding: 18px 15px;
}
.infos ul {
    padding: 12px 30px;
}
.software-list {
    list-style-type: none;
    padding: 0;
}
.software-list li {
    background: white;
    margin-bottom: 15px;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}
a {
    color: #0d6efd;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

.end-page {height: 120px;}

.btn-cta {
    display: inline-block;
    background: linear-gradient(90deg,#0d6efd,#6610f2);
    color: #fff;
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}
.btn-cta:hover { opacity: 0.95; transform: translateY(-1px); }

.form-container {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 450px;
}

.button-container {
    width: 100%;
    max-width: 600px;
    justify-content: center;
    align-items: center;
    padding: 20px;
    margin: 0 auto;
}

.button-container a {
    text-align: center;
    justify-content: center;
    width: 100%;
}

.input-group {
    margin-bottom: 15px;
}

input[type="number"],
input[type="text"] {
    width: 100%;
    padding: 12px;
    border-radius: 5px;
    border: 1px solid #ccc;
    font-size: 1rem;
}

button {
    width: 100%;
    padding: 15px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 1.2rem;
    cursor: pointer;
}

button:hover {
    background-color: #218838;
}

.options {
    margin-bottom: 20px;
}

.options label {
    display: block;
    margin-bottom: 10px;
}

.result {
    margin-top: 20px;
    text-align: center;
}

footer {
    background-color: #007bff;
    color: white;
    padding: 20px 0;
    text-align: center;
    margin-top: 35px;
    position: relative;
    bottom: 0;
    width: 100%;
}

footer a {
    text-decoration: none;
    color: white;
}

/* Responsive Styles */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    header p {
        font-size: 1rem;
    }

    .form-container {
        padding: 20px;
    }

    .input-group {
        margin-bottom: 12px;
    }

    .main {
        width: 100%;
    }
}

@media (max-width: 480px) {
    button {
        font-size: 1rem;
    }
}