/*=============== GOOGLE FONTS ===============*/
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

/*=============== VARIABLES ===============*/
:root {
    --header-height: 3.5rem;

    /*========== Colors ==========*/
    --primary-color: #4831d4;
    --primary-color-dark: #3723a1;
    --title-color: #393939;
    --text-color: #5d5d5d;
    --body-color: #f7f7f7;
    --container-color: #ffffff;
    --border-color: #e9e9e9;
    --tag-bg-color: #f1f1f1;

    /*========== Font and typography ==========*/
    --body-font: 'Poppins', sans-serif;
    --h1-font-size: 2.5rem;
    --h2-font-size: 2rem;
    --h3-font-size: 1.5rem;
    --h4-font-size: 1.1rem;
    --normal-font-size: 1rem;
    --small-font-size: 0.875rem;

    /*========== Font weight ==========*/
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /*========== z-index ==========*/
    --z-tooltip: 10;
    --z-fixed: 100;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    background-color: var(--body-color);
    color: var(--text-color);
}

h1, h2, h3, h4 {
    color: var(--title-color);
    font-weight: var(--font-semibold);
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
}

/*=============== REUSABLE CSS CLASSES ===============*/
.container {
    max-width: 1120px;
    /* Corrected: Centered the container and added padding */
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0 2rem;
}

.section__title {
    font-size: var(--h2-font-size);
    text-align: center;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.section__subtitle {
    font-size: var(--normal-font-size);
    text-align: center;
    margin-bottom: 4rem;
    /* Added max-width for better readability on large screens */
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/*=============== HEADER & NAV ===============*/
.header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background-color: var(--container-color);
    z-index: var(--z-fixed);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    color: var(--primary-color);
    font-weight: var(--font-bold);
    font-size: 1.5rem;
}

.nav__list {
    display: flex;
    gap: 2rem;
}

.nav__link {
    color: var(--title-color);
    font-weight: var(--font-medium);
    transition: color 0.3s;
}

.nav__link:hover {
    color: var(--primary-color);
}

/*=============== BUTTON ===============*/
.button {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: var(--font-medium);
    transition: background-color 0.3s;
    border: 2px solid transparent;
}

.button:hover {
    background-color: var(--primary-color-dark);
}

.button--flex {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}
.button--flex svg{
    width: 1.2rem;
    height: 1.2rem;
}

.button--outline {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.button--outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}


/*=============== TAG ===============*/
.tag {
    display: inline-block;
    background-color: var(--tag-bg-color);
    color: var(--text-color);
    padding: 0.25rem 0.75rem;
    border-radius: 0.5rem;
    font-size: var(--small-font-size);
    border: 1px solid var(--border-color);
    margin: 0.25rem;
}

/*=============== HOME ===============*/
.home {
    background: linear-gradient(135deg, #e0c3fc 0%, #8ec5fc 100%);
    padding-top: calc(var(--header-height) + 4rem);
    padding-bottom: 4rem;
}

.home__container {
    text-align: center;
    /* Added flex properties for perfect centering */
    display: flex;
    flex-direction: column;
    align-items: center;
}

.home__subtitle {
    font-size: 1.25rem;
    margin: 0.5rem 0;
}

.home__description {
    max-width: 600px;
    margin: 1rem auto 2rem;
}

.home__actions {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.home__socials {
    display: flex;
    gap: 1rem;
}

.home__social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--container-color);
    border-radius: 50%;
    color: var(--primary-color);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}
.home__social-link svg{
    width: 1.5rem;
    height: 1.5rem;
    fill: var(--primary-color);
}

.home__social-link:hover {
    transform: translateY(-2px);
}

.home__tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

/*=============== ABOUT ===============*/
.about__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: flex-start;
}
.about__journey h3{
    font-size: var(--h3-font-size);
    margin-bottom: 1rem;
}
.about__journey p {
    margin-bottom: 1rem;
}
.about__tags{
    margin-top: 2rem;
}

.about__values {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}
.value-card {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    border: 1px solid var(--border-color);
}
.value-card__icon{
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

/*=============== SKILLS ===============*/
.skills__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-card {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}
.skill-card h4{
    margin-bottom: 1rem;
}

/*=============== EXPERIENCE ===============*/
.experience__card {
    background-color: var(--container-color);
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
    padding: 2.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.experience__info p{
    margin-bottom: 0.5rem;
}
.experience__tags{
    margin-top: 1rem;
}
.experience__achievements ul{
    list-style-type: disc;
    padding-left: 1.5rem;
}
.experience__achievements li{
    margin-bottom: 0.75rem;
}

/*=============== PROJECTS ===============*/
.projects__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}
.project-card {
    background-color: var(--container-color);
    padding: 2rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}
.project-card h3{
    margin-bottom: 0.5rem;
}
.project-description {
    margin-bottom: 1.5rem;
}
.project-card h4{
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}
.project-card ul{
    list-style-type: disc;
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}
.project-card li{
    margin-bottom: 0.5rem;
}
.project-tags {
    margin-bottom: 2rem;
}
.project-actions{
    display: flex;
    gap: 1rem;
    margin-top: auto; /* Pushes buttons to the bottom */
}


/*=============== EDUCATION ===============*/
.education__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}
.education__column h3{
    font-size: var(--h3-font-size);
    margin-bottom: 1.5rem;
}
.education-card,
.certification-card {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}
.education-card p {
    margin-top: 0.25rem;
}
.certification-card{
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/*=============== CONTACT ===============*/
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}
.contact-card,
.contact-info-card {
    background-color: var(--container-color);
    padding: 2rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.contact-card {
    text-align: center;
}
.contact-card h4 {
    margin-bottom: 0.5rem;
}
.contact-card p {
    margin-bottom: 1.5rem;
}
.contact-info-card {
    grid-column: 1 / 3;
    display: flex;
    justify-content: space-around;
    align-items: center;
}

/*=============== FOOTER ===============*/
.footer {
    background-color: var(--container-color);
    padding: 2rem 0;
    margin-top: 4rem;
}
.footer__container{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.footer__link{
    color: var(--text-color);
    margin-right: 1.5rem;
    font-weight: var(--font-medium);
}
.footer__link:hover{
    color: var(--primary-color);
}

/*=============== MEDIA QUERIES FOR RESPONSIVENESS ===============*/
@media screen and (max-width: 1024px) {
    .container {
        padding: 0 1rem;
    }
    .nav__list { display: none; } /* On mobile, we hide the list. A real project would use JS for a hamburger menu */
    
    .section{
        padding: 4rem 0 1rem;
    }
    
    .about__container, .projects__grid, .education__grid {
        grid-template-columns: 1fr;
    }
    
    .experience__card {
        grid-template-columns: 1fr;
        padding: 1.5rem;
    }

    .contact__grid{
        grid-template-columns: 1fr;
    }
    .contact-info-card{
        grid-column: 1 / 2;
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }

    .footer__container{
        flex-direction: column;
        gap: 1.5rem;
        text-align: center;
    }
}