:root {
    --text-color: #1a1c2B;
    --link-color: #4a81ee;
    --background-color: #eeeff1;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--background-color);
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.5s ease;
}

/* Navbar */
nav {
    display: flex;
    justify-content: space-between;
    padding: 0 50px;
    height: 80px;
    align-items: center;
    border-bottom: 2px solid #b9c6d348;

    /* Sticky Navbar*/
    background-color: #eeeff1;
    position: fixed;
    top: 0;
    width: 100%;
    left: 0;
    padding: 1rem;
    z-index: 1000;
    /* para que quede encima de otros elementos */
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);

}

nav .Left_Nav_Section a {
    color: var(--text-color);
    font-size: 22px;
    font-weight: 600;
}

nav .Right_Nav_Section a {
    color: var(--text-color);
    font-weight: 600;
    font-size: 22px;
    margin: 0 10px;
}

nav .Left_Nav_Section a:hover,
nav .Right_Nav_Section a:hover {
    color: #4a81ee;
}

/* Main Section */
#About_Me {
    padding: 65px 40px;
    margin: 50px auto 30px auto;
    max-width: 1750px;
    overflow: hidden;
}

#About_Me .Text {
    text-align: justify;
}

#About_Me .Text #Lab a {
    color: inherit;
    text-decoration: none;
}

#About_Me .Text #Lab a:hover {
    color: #3170ed;
    text-decoration: underline;
}

#About_Me .Text #Bridge a {
    color: inherit;
    text-decoration: none;
}

#About_Me .Text #Bridge a:hover {
    color: #3170ed;
    text-decoration: underline;
}

#About_Me .Text #AI4ALL a {
    color: inherit;
    text-decoration: none;
}

#About_Me .Text #AI4ALL a:hover {
    color: #3170ed;
    text-decoration: underline;
}


#About_Me .Text h2 {
    font-size: 40px;
    color: var(--text-color);
    margin-bottom: 20px;
}

#About_Me .Text p {
    font-size: 20px;
    color: var(--text-color);
    line-height: 1.6;
}

#About_Me .Text #Name:hover {
    display: inline-block;
    position: relative;
    color: #4a81ee;
    font-size: 3rem;
    transition: all 0.3s ease;
    transform: translateY(-5px);
    text-shadow:
        0 0 10px rgba(255, 255, 255, 0.6),
        0 0 20px rgba(255, 255, 255, 0.5),
        0 0 30px rgba(255, 255, 255, 0.4);
}

#About_Me .Headshot {
    float: right;
    margin: 70px 0 20px 30px;
    /* Image lowered */
}

#About_Me .Headshot img {
    width: 300px;
    height: 380px;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

/* Collage Section */
#Collage {
    padding: 0px 50px 50px 40px;
    background-color: var(--background-color);
    margin: 0 auto;
    max-width: 2000px;
}

.Collage_Images {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 300px);
    gap: 20px;
    max-width: 1700px;
    margin: 0 auto;

}

#Collage img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

/* Grid layout for collage */
#Collage img:nth-child(1) {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
    height: 620px;
}

#Collage img:nth-child(2) {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
}

#Collage img:nth-child(3) {
    grid-column: 3 / 4;
    grid-row: 1 / 2;
}

#Collage img:nth-child(4) {
    grid-column: 2 / 3;
    grid-row: 2 / 3;
}

#Collage img:nth-child(5) {
    grid-column: 3 / 4;
    grid-row: 2 / 3;
}

#Collage img:nth-child(6) {
    grid-column: 2 / 4;
    grid-row: 3 / 4;
    height: 200px;
    margin-top: 20px;
}

#Collage img:hover {
    transform: scale(1.02);
}

/* Skills section*/

#Education_Skills #Skills {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
    color: var(--text-color);
    margin-top: 20px;
}

.skills-container {
    max-width: 1200px;
    margin-right: 100px, auto;
    padding: 20px 40px 40px 40px;

}

.skills-section {
    margin-bottom: 30px;
}

.section-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 10px;
    padding-bottom: 8px;
    font-family: 'Montserrat', sans-serif;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 8px;
}

.skill-button {
    background: #fff;
    border: 1px solid #b9c6d348;
    border-radius: 6px;
    padding: 14px 12px;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    font-family: 'Montserrat', sans-serif;
}

.skill-button:hover {
    border-color: var(--link-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 129, 238, 0.15);
    background: #f8f9ff;
    color: var(--link-color);
}

.skill-button:active {
    transform: translateY(-1px);
}

/*contact*/

#Contact_Name {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 40px;
    color: var(--text-color);
    margin-top: 20px;
}

#Contact {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    padding: 40px 20px;
    margin-bottom: 50px;
}

.icon {
    width: 100px;
    height: 100px;
    border-radius: 100px;
    background: #fff;
    text-align: center;
    font-size: 40px;
    line-height: 100px;
    font-family: sans-serif;
    overflow: hidden;
    box-shadow: 5px 10px 20px rgba(150, 150, 150, .3);
    transition: all .3s ease-out;
}

.icon:hover {
    width: 250px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    color: #fff;
}

.icon:hover i {
    color: #fff;
}


.icon .fa-linkedin-in {
    color: #0077B5;
}

.lnk:hover {
    background: #0077B5;
}


.icon .fa-solid fa-envelope {
    color: #0077B5;
}

.out:hover {
    background: #0077B5;
}

.icon .fa-brands fa-instagram {
    color: #0077B5;
}

.Ig:hover {
    background: #0077B5;
}

/*Github Icon*/
.icon .fa-brands fa-github {
    color: #0077B5;
}

.github:hover {
    background: #0077B5;
}



/* Media Queries */
/* Mobile: Max width 600px */
@media (max-width: 600px) {
    nav {
        padding: 0 20px;
    }

    nav .Left_Nav_Section a {
        display: none;
    }

    #About_Me {
        padding: 30px 20px;
    }

    #About_Me .Headshot {
        float: none;
        text-align: center;
        margin: 0 auto 30px auto;
        width: fit-content;
        padding: 0;
    }

    #About_Me .Headshot img {
        width: 250px;
        height: 320px;
    }

    #About_Me .Text {
        text-align: left;
    }

    #About_Me .Text h2 {
        font-size: 32px;
        text-align: center;
        margin-bottom: 20px;
    }

    #About_Me .Text p {
        font-size: 18px;
    }

    #Collage {
        padding: 60px 15px;
    }

    .Collage_Images {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    #Collage img {
        height: 250px;
        grid-column: 1 / 2;
        grid-row: auto;
        margin-top: 0;
    }
}



/* Tablet: Max width 900px */
@media (max-width: 900px) {
    .Collage_Images {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
        gap: 15px;
    }

    #Collage img:nth-child(1) {
        grid-column: 1 / 2;
        grid-row: 1 / 2;
        height: 300px;
    }

    #Collage img:nth-child(2) {
        grid-column: 2 / 3;
        grid-row: 1 / 2;
    }

    #Collage img:nth-child(3) {
        grid-column: 1 / 2;
        grid-row: 2 / 3;
    }

    #Collage img:nth-child(4) {
        grid-column: 2 / 3;
        grid-row: 2 / 3;
    }

    #Collage img:nth-child(5) {
        grid-column: 1 / 2;
        grid-row: 3 / 4;
    }

    #Collage img:nth-child(6) {
        grid-column: 2 / 3;
        grid-row: 3 / 4;
        height: 300px;
        margin-top: 0;
    }

}