*, 
*:before, 
*:after {
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

/* Body */
body {
    margin: 0;
    padding: 0;
    background-color: #f0f0f0;
    font-family: 'Roboto', sans-serif;
    text-align: center;
}

body > header {
    width: 100%;
    height: 4rem;
    background-color: #000000;
    position: fixed;
    color: white;
    z-index: 1000;
}

/* Header */
.header-container {
    width: 60rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 auto;
}

.header-container > div {
    height: 4rem;
    line-height: 4rem;
}

/* Main */
main {
    padding-top: 7rem;
}

/* Home Page */
.home-page {
    background-color: #ffffff;
    width: 60rem;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.project-page {
    background-color: rgb(62, 62, 62);
    height: 30rem;
    width: 60rem;
    margin: 0 auto;
    margin-bottom: 2rem;
}

.project-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.project-card {
    background-color: rgb(43, 43, 43);
    padding: 1rem;
    height: 10rem;
    text-align: left;
    color: white;
}

.hideAll {
    display: none;
}

.pointer {
    cursor: pointer;
}

/* ABOUT ME PAGE */
.Skills {
    color: #ffffff;
    height: 8rem;
    background-color: #303030;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
}

/* CONTACT ME PAGE */
.Contact {
    height: 8rem;
    background-color: #ffffff;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
}

.About-me {
    color: #ffffff;
    height: 8rem;
    background-color: #000000;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
}

/* FOOTER */
.footer {
    width: 100%;
    height: 4rem;
    background-color: #282c34;
    color: white;
    line-height: 4rem;
    text-align: center;
}

.contact-section {
    width: auto;
    margin: auto;
    padding: 30px;
    font-family: Arial, sans-serif;
}

.form-container {
    background: #f5f5f5;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.form-container input,
.form-container textarea {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border-radius: 5px;
    border: 1px solid #ccc;
}

#send-form {
    background: #4A6CF7;
    color: white;
    cursor: pointer;
    transition: 0.3s;
}

#send-form:hover {
    background: #324dcc;
}

.thank-you-message {
    margin-top: 20px;
    color: green;
    font-weight: bold;
}
/* ===================== */
/* RESPONSIVE MEDIA QUERIES */
/* ===================== */

@media (max-width: 1024px) {
    .header-container,
    .home-page,
    .project-page {
        width: 90%;
    }

    .project-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    body > header {
        height: auto;
        padding: 1rem;
        text-align: center;
    }

    .header-container {
        flex-direction: column;
        align-items: center;
        justify-content: center;
        height: auto;
    }

    .header-container > div {
        height: auto;
        line-height: normal;
        padding: 0.5rem 0;
    }

    .project-container {
        grid-template-columns: 1fr;
    }

    .Skills,
    .Contact,
    .About-me {
        padding: 1rem;
        height: auto;
    }

    .footer {
        height: auto;
        line-height: normal;
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .header-container {
        width: 100%;
        padding: 0 1rem;
    }

    .header-container > div {
        font-size: 0.9rem;
    }

    .project-card {
        height: auto;
    }
}