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

main {
    padding-top: 117px;
}

section {
    padding: 0 25px;
}

h3 {
    font-family: 'Rubik', sans-serif;
    font-weight: 600;
    color: #dc4226;
    font-size: 24px;
    text-align: center;
    margin-bottom: 15px;
}

.about p,
.about ul {
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 15px;
    text-align: justify;
}

.about ul {
    list-style: none;
}

.methodology {
    margin-top: 70px;
}

.subtitle {
    font-family: 'Rubik', sans-serif;
    font-style: italic;
    font-size: 13px;
    text-align: center;
    margin-bottom: 37px;
}

.steps {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.step {
    position: relative;
}

.step-header {
    background: rgba(163, 196, 233, 0.25);
    border-radius: 18px;
    display: flex;
    align-items: center;
    padding: 0 29px;
}

.number {
    font-family: 'Rubik', sans-serif;
    font-weight: 700;
    color: #21509e;
    font-size: 50px;
    margin-right: 21px;
}

.title {
    font-family: 'Rubik', sans-serif;
    font-weight: 600;
    color: #21509e;
    font-size: 16px;
    margin-left: 38px;
}

.description {
    background: #21509e;
    border-radius: 18px;
    color: white;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 15px 20px;
    margin-top: 8px;
}

.cta-button {
    margin-top: 20px;
    margin-bottom: 25px;
    display: inline-block;
    padding: 12px 24px;
    background-color: #DC4226;
    color: white;
    border: none;
    border-radius: 50px;
    text-decoration: none;
    text-align: center;
}



/* TABLETTE : ≥ 600px */
@media (min-width: 600px) {
    /* body {
        max-width: 100%;
        padding: 0 40px;
    } */

    header {
        max-width: 100%;
        padding: 0 60px;
        height: 50px;
        top: 40px;
    }

    section {
        padding: 0;
    }

    h3 {
        font-size: 28px;
        margin-bottom: 20px;
    }

    .about p,
    .about ul {
        font-size: 16px;
        margin-bottom: 20px;
    }

    .methodology {
        margin-top: 90px;
    }

    .subtitle {
        font-size: 15px;
        margin-bottom: 45px;
    }

    .steps {
        gap: 40px;
    }

    .number {
        font-size: 60px;
    }

    .title {
        font-size: 18px;
        margin-left: 45px;
    }

    .description {
        font-size: 16px;
        padding: 0 30px;
    }

    .cta-button {
        margin-top: 30px;
        margin-bottom: 35px;
        padding: 14px 28px;
        font-size: 16px;
    }
}

/* DESKTOP : ≥ 1024px */
@media (min-width: 1024px) {
    header {
        padding: 0 80px;
        height: 60px;
        top: 30px;
    }

    main {
        padding-top: 140px;
    }

    h3 {
        font-size: 32px;
        margin-bottom: 25px;
        text-align: center;
    }

    .about p,
    .about ul {
        font-size: 17px;
        margin-bottom: 25px;
        width: 1000px;
        text-align: justify center;
        margin-left: 100px;
    }

    .methodology {
        margin-top: 80px;
    }

    .subtitle {
        font-size: 16px;
        margin-bottom: 60px;
        text-align: center;
    }

    .steps {
        gap: 50px;
        max-width: 900px;
        margin: 0 auto;
    }

    .step {
        display: grid;
        gap: 20px;
        grid-template-columns: 45% 55%;
    }

    .step-header {
        height: 100%;
        padding: 0 50px;
    }

    .number {
        font-size: 70px;
    }

    .title {
        font-size: 20px;
        margin-left: 50px;
    }

    .description {
        margin-top: 0;
        font-size: 17px;
        padding: 15px 40px;
        display: flex;
    }

    .cta-button {
        margin-top: 40px;
        margin-bottom: 45px;
        padding: 16px 32px;
        font-size: 18px;
        transition: background-color 0.3s ease, transform 0.2s ease;
        margin-left: 220px;
    }

    .cta-button:hover {
        background-color: #c13820;
        transform: translateY(-2px);
    }
}

/* Large Desktop : ≥ 1440px */
@media (min-width: 1440px) {
    main {
        max-width: 1400px;
    }

    .about p,
    .about ul {
        font-size: 18px;
        max-width: 900px;
    }

    .steps {
        max-width: 1100px;
    }

    .step-header {
        padding: 0 60px;
    }

    .number {
        font-size: 80px;
    }

    .title {
        font-size: 22px;
        margin-left: 60px;
    }

    .description {
        font-size: 18px;
        padding: 0 50px;
    }
}