/*=============== GOOGLE FONTS ===============*/
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&display=swap');

/*=============== VARIABLES CSS ===============*/
/* Prevent horizontal scroll during animations */
body, html {
    overflow-x: hidden;
}

/* Ensure the container is ready for reveal */
.section {
    overflow: hidden;
}
/* Prevent the horizontal scrollbar during the slide */
body {
    overflow-x: hidden;
}

/* Ensure sections have enough space to slide into */
.section {
    overflow: hidden;
}

/* Hide elements initially so they don't 'flicker' before sliding */
.load-hidden {
    visibility: hidden;
}

:root {
    --header-height: 4.5rem;

    /*========== Colors ==========*/
    /* Change favorite color */
    --first-color: #2563eb;
    --first-color-alt: #1d4ed8;
    --title-color: #1e293b;
    --text-color: #475569;
    --body-color: #f8fafc;
    --container-color: #ffffff;
    --border-color: #e2e8f0;

    /*========== Font and typography ==========*/
    --body-font: 'Poppins', sans-serif;
    --h1-font-size: 1.75rem;     /* Decreased from larger default */
    --h2-font-size: 1.25rem;     /* Decreased for section titles */
    --h3-font-size: 1.125rem;    /* Decreased for card titles */
    --normal-font-size: .938rem;
    --small-font-size: .813rem;
    --smaller-font-size: .75rem;

    /*========== Font weight ==========*/
    --font-medium: 500;
    --font-semi-bold: 600;

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

/* Responsive typography */
@media screen and (min-width: 968px) {
    :root {
       --h1-font-size: 2.25rem;
        --h2-font-size: 1.5rem;
        --h3-font-size: 1.25rem;
        --normal-font-size: 1rem;
        --small-font-size: .875rem;
        --smaller-font-size: .813rem;
    }
}

/*========== Dark Theme Variables ==========*/
body.dark-theme {
    --title-color: #f1f5f9;
    --text-color: #94a3b8;
    --body-color: #0f172a; /* Deep Navy */
    --container-color: #1e293b;
    --border-color: #334155;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    background-color: var(--body-color);
    color: var(--text-color);
    transition: background-color 0.4s, color 0.4s; /* Smooth Mode Switch */
    
    /* Mesh Background Effect */
    background-image: radial-gradient(at 0% 0%, hsla(217,100%,95%,1) 0, transparent 50%), 
                      radial-gradient(at 50% 0%, hsla(225,100%,92%,1) 0, transparent 50%);
}

body.dark-theme {
    background-image: radial-gradient(at 0% 0%, hsla(222, 47%, 12%, 1) 0, transparent 50%), 
                      radial-gradient(at 50% 0%, hsla(217, 33%, 17%, 1) 0, transparent 50%);
}

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

ul { list-style: none; }
a { text-decoration: none; }
img { max-width: 100%; height: auto; }

/*=============== REUSABLE CSS CLASSES ===============*/
.container {
    max-width: 1024px;
    margin-left: 1.5rem;
    margin-right: 1.5rem;
}

.grid {
    display: grid;
    gap: 1.5rem;
}

.section {
    padding: 6.5rem 0 2rem;
}

.section__title {
    text-align: center;
    margin-bottom: 3rem;
}

/*=============== HEADER & NAV ===============*/
.header {
    width: 100%;
    background-color: transparent;
    position: fixed;
    top: 0;
    left: 0;
    z-index: var(--z-fixed);
    transition: background-color 0.4s, box-shadow 0.4s;
}

/* Header background change on scroll */
.scroll-header {
    background-color: var(--body-color);
    box-shadow: 0 1px 16px rgba(0,0,0,0.1);
}

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

.nav__logo {
    color: var(--title-color);
    font-weight: var(--font-semi-bold);
    font-size: 1.25rem;
}

.nav__logo span {
    color: var(--first-color);
}

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

.nav__link {
    color: var(--title-color);
    font-weight: var(--font-medium);
    transition: .3s;
}

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

.nav__btns {
    display: flex;
    align-items: center;
    column-gap: 1rem;
}

.change-theme {
    font-size: 1.25rem;
    color: var(--title-color);
    cursor: pointer;
    transition: .3s;
}

/*=============== HOME ===============*/
.home__container {
    grid-template-columns: 1fr;
    text-align: center;
}

.home__img-box {
    justify-self: center;
    background: var(--first-color);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; /* Blob Shape */
    width: 280px;
    height: 280px;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    transition: 0.4s;
}

.home__img {
    width: 90%;
}

.home__title {
    font-size: var(--h1-font-size);
    margin-bottom: 0.75rem;
}

.home__subtitle {
    font-size: var(--h3-font-size);
    color: var(--first-color);
    margin-bottom: 1.5rem;
}

.home__description {
    margin-bottom: 2rem;
}

.button {
    display: inline-block;
    background-color: var(--first-color);
    color: #fff;
    padding: 1rem 1.75rem;
    border-radius: .5rem;
    font-weight: var(--font-medium);
    transition: .3s;
    border: none;
    cursor: pointer;
}

.button:hover {
    background-color: var(--first-color-alt);
    transform: translateY(-3px);
}

.button--ghost {
    background: transparent;
    border: 2px solid var(--first-color);
    color: var(--first-color);
    margin-left: 1rem;
}

/*=============== ABOUT SECTION ===============*/
.section__subtitle {
    display: block;
    font-size: var(--small-font-size);
    color: var(--text-color);
    text-align: center;
    margin-bottom: .25rem;
}

.about__container {
    row-gap: 2.5rem;
}

.about__img-wrapper {
    justify-self: center;
}

.about__img {
    width: 280px;
    border-radius: 1.5rem;
    box-shadow: 0 12px 32px rgba(0,0,0,0.1);
    transition: transform .4s;
}

.about__img:hover {
    transform: scale(1.02);
}

.about__info {
    grid-template-columns: repeat(3, 1fr);
    gap: .75rem;
    margin-bottom: 2rem;
}

.about__box {
    background-color: var(--container-color);
    border: 1px solid var(--border-color);
    padding: 1rem .5rem;
    border-radius: 1rem;
    text-align: center;
    transition: .4s;
}

.about__box:hover {
    background-color: var(--first-color);
    border-color: var(--first-color);
}

.about__icon {
    font-size: 1.5rem;
    color: var(--first-color);
    margin-bottom: .5rem;
}

.about__title {
    font-size: var(--small-font-size);
}

.about__subtitle {
    font-size: var(--smaller-font-size);
}

/* Change icon and text color on hover */
.about__box:hover .about__icon,
.about__box:hover .about__title,
.about__box:hover .about__subtitle {
    color: #fff;
}

.about__description {
    text-align: center;
    margin-bottom: 2rem;
    padding: 0 1rem;
    line-height: 1.6;
}

.about__button {
    display: flex;
    align-items: center;
    justify-content: center;
    column-gap: .5rem;
    margin: 0 auto;
    width: max-content;
}

/*=============== RESPONSIVE BREAKPOINTS ===============*/
@media screen and (min-width: 768px) {
    .about__container {
        grid-template-columns: repeat(2, 1fr);
        align-items: center;
        column-gap: 4rem;
    }

    .about__img {
        width: 350px;
    }

    .about__data {
        text-align: initial;
    }

    .about__info {
        justify-content: initial;
    }

    .about__description {
        text-align: initial;
        padding: 0;
    }

    .about__button {
        margin: 0;
    }
}


/*=============== SKILLS (GRID STYLE) ===============*/
/*=============== SKILLS UPDATES ===============*/
.skills__container {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    justify-content: center;
}

.skills__card {
    background: #050a18; /* Dark Navy Background */
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 1rem;
    border-radius: 1.25rem;
    text-align: center;
    transition: .4s;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    row-gap: 1rem;
}

/* Fix for GitHub and DSA Icons */
.skills__icon-fixed, 
.skills__icon-special {
    font-size: 3rem;
    color: #fff;
    filter: drop-shadow(0 4px 8px rgba(37, 99, 235, 0.3));
}

/* Specific color for DSA to make it stand out */
.skills__icon-special {
    color: #00f2fe; /* Cyan glow for Brain/DSA icon */
}

/* Hover effect */
.skills__card:hover {
    transform: translateY(-7px);
    border-color: var(--first-color);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.2);
}

.skills__img {
    width: 45px;
    height: 45px;
}

.skills__name {
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
    color: #fff;
}

/* Light Mode Support: If you want skills cards to stay dark, 
   leave this. If you want them to turn light, use this: */
body:not(.dark-theme) .skills__card {
    background-color: var(--container-color);
    border-color: var(--border-color);
}

body:not(.dark-theme) .skills__name {
    color: var(--title-color);
}

/*=============== WORK SECTION REVEAL EFFECT ===============*/
.work__container {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.work__card {
    position: relative;
    border-radius: 1.5rem;
    overflow: hidden; /* Clips the content sliding up */
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.work__img-box {
    position: relative;
    width: 100%;
    height: 350px; /* Adjust height as needed */
}

.work__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

/* Hidden Information Layer */
.work__info {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 20%, rgba(0, 0, 0, 0.2) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    color: #fff;
    
    /* Transition states: Hidden by default */
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Hover Actions */
.work__card:hover .work__info {
    opacity: 1;
    transform: translateY(0);
}

.work__card:hover .work__img {
    transform: scale(1.1); /* Subtle zoom for depth */
}

/* Content Styling */
/*=============== CONTACT ===============*/
.contact__container {
    row-gap: 3rem;
    padding-bottom: 3rem;
}

.contact__title {
    text-align: center;
    font-size: var(--h3-font-size);
    margin-bottom: 1.5rem;
    color: var(--title-color);
}

.contact__info {
    display: grid;
    gap: 1.25rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact__card {
    background-color: var(--container-color);
    padding: 1rem;
    border-radius: 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
    transition: .4s;
}

.contact__card-icon {
    font-size: 2rem;
    color: var(--first-color);
    margin-bottom: .25rem;
}

.contact__card-title,
.contact__card-data {
    font-size: var(--small-font-size);
}

.contact__card-title {
    font-weight: var(--font-medium);
}

.contact__card-data {
    display: block;
    margin-bottom: .75rem;
}

.contact__button {
    color: var(--first-color);
    font-size: var(--small-font-size);
    display: flex;
    align-items: center;
    justify-content: center;
    column-gap: .25rem;
    transition: .3s;
}

.contact__button:hover .contact__button-icon {
    transform: translateX(.25rem);
}

.contact__card:hover {
    box-shadow: 0 8px 24px rgba(0,0,0,0.05);
    transform: translateY(-5px);
}

/* Form Styling */
.contact__form-div {
    position: relative;
    margin-bottom: 2rem;
    height: 4rem;
}

.contact__form-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid var(--border-color);
    background: none;
    color: var(--text-color);
    outline: none;
    padding: 1.5rem;
    border-radius: .75rem;
    z-index: 1;
}

.contact__form-tag {
    position: absolute;
    top: -0.75rem;
    left: 1.25rem;
    font-size: var(--smaller-font-size);
    padding: 0.25rem;
    background-color: var(--body-color);
    z-index: 10;
    color: var(--first-color);
}

.contact__form-area {
    height: 11rem;
}

.contact__form-area textarea {
    resize: none;
}

.contact__form-status {
    margin-top: 1rem;
    font-size: var(--small-font-size);
    font-weight: var(--font-medium);
    transition: 0.3s;
    text-align: center;
}

/* Responsive adjustments */
@media screen and (min-width: 768px) {
    .contact__container {
        grid-template-columns: repeat(2, 1fr);
        column-gap: 6rem;
    }
}
/*=============== FOOTER ===============*/
/*=============== FOOTER ===============*/
.footer {
    background-color: var(--container-color);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 2rem;
    transition: background-color 0.4s;
}

.footer__container {
    text-align: center;
}

.footer__title {
    font-size: var(--h1-font-size);
    color: var(--first-color);
    margin-bottom: 2rem;
}

.footer__title span {
    color: var(--title-color);
}

.footer__list {
    display: flex;
    justify-content: center;
    column-gap: 1.5rem;
    margin-bottom: 2rem;
}

.footer__link {
    color: var(--title-color);
    transition: 0.3s;
}

.footer__link:hover {
    color: var(--first-color);
}

.footer__social {
    display: flex;
    justify-content: center;
    column-gap: 1.25rem; /* Space between icons */
    margin-bottom: 2rem;
}

.footer__social-link {
    background-color: var(--title-color);
    color: var(--container-color);
    padding: 0.5rem;
    border-radius: 0.5rem;
    display: inline-flex;
    font-size: 1.25rem;
    transition: background-color 0.3s, transform 0.3s;
}

.footer__social-link:hover {
    background-color: var(--first-color);
    transform: translateY(-5px); /* Lift icon on hover */
}

.footer__copy {
    display: block;
    margin-top: 4.5rem;
    color: var(--text-color);
    font-size: var(--smaller-font-size);
}

/* Responsive Fix for Footer */
@media screen and (max-width: 320px) {
    .footer__list {
        column-gap: 1rem;
    }
}

/*=============== MEDIA QUERIES (RESPONSIVE) ===============*/
@media screen and (max-width: 767px) {
    .nav__menu {
        position: fixed;
        bottom: 1rem;
        left: 50%;
        transform: translateX(-50%);
        background-color: var(--container-color);
        width: 90%;
        padding: 1.25rem 2rem;
        border-radius: 4rem;
        box-shadow: 0 8px 24px rgba(0,0,0,0.1);
        z-index: var(--z-fixed);
    }
    
    .nav__list {
        justify-content: space-around;
        column-gap: 0;
    }

    .nav__link span { display: none; } /* Hide text on very small mobile if needed */
}

@media screen and (min-width: 768px) {
    .container {
        margin-left: auto;
        margin-right: auto;
    }

    .home__container {
        grid-template-columns: repeat(2, 1fr);
        align-items: center;
        text-align: left;
    }

    .home__img-box {
        width: 400px;
        height: 400px;
        order: 1;
    }

    .about__container {
        grid-template-columns: repeat(2, 1fr);
        align-items: center;
    }
}


/*=============== CODING PROFILES ===============*/
.profiles__container {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    justify-content: center;
}

.profile__card {
    background-color: var(--container-color);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 1.5rem;
    text-align: center;
    transition: transform .4s, box-shadow .4s, background-color .4s;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.profile__card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    background-color: var(--body-color);
}

.profile__icon-box {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile__logo {
    width: 100%;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.profile__stats-box {
    width: 100%;
    max-width: 280px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    border-radius: 1rem;
}

.profile__stats-img {
    width: 100%;
    transition: transform .4s;
}

.profile__card:hover .profile__stats-img {
    transform: scale(1.05);
}

.profile__name {
    font-size: var(--h3-font-size);
    color: var(--title-color);
    margin-bottom: .5rem;
}

.profile__detail {
    font-size: var(--small-font-size);
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.profile__button {
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    color: var(--first-color);
    font-size: var(--small-font-size);
    font-weight: var(--font-medium);
    transition: .3s;
}

.profile__button:hover {
    column-gap: .75rem;
    color: var(--first-color-alt);
}

/* Dark Mode adjustment for Stats API */
body.dark-theme .profile__stats-img {
    filter: invert(0.9) hue-rotate(180deg); /* Optional: makes light stats look better in dark mode */
}


/*=============== CUSTOM CURSOR WITH LIGHT SPREAD ===============*/
/*=============== CURSOR LIGHT SPREAD (NORMAL POINTER) ===============*/


/* The style for a single light particle */
.cursor-particle {
    position: absolute;
    width: 10px; /* Base size of the light source */
    height: 10px;
    border-radius: 50%;
    pointer-events: none; /* Crucial: lets clicks pass through */
    z-index: 9999; /* On top of everything */
    transform: translate(-50%, -50%); /* Center on coordinates */
    mix-blend-mode: screen; /* Makes colors blend nicely together */
    
    /* The animation definition */
    animation: particleFade 1s ease-out forwards;
}

/* The animation keyframes */
@keyframes particleFade {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.8;
        /* Small, intense glow at start */
        box-shadow: 0 0 10px 2px currentColor;
    }
    100% {
        /* Expands significantly and fades out */
        transform: translate(-50%, -50%) scale(8);
        opacity: 0;
        /* Large, soft spread at end */
        box-shadow: 0 0 50px 10px currentColor;
    }
}

/* Optional: Ensure main content is clickable */
main, section, header, footer {
    position: relative;
    z-index: 1;
}

/*=============== DYNAMIC FLUID TRAIL CSS ===============*/
.cursor-particle {
    position: absolute;
    width: 25px; 
    height: 25px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    filter: blur(10px); 
    
    /* Default behavior (Dark Mode) */
    mix-blend-mode: screen; 
    animation: smoothLiquidFade 1.2s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

/* Specific styling for Light Mode */
body:not(.dark-theme) .cursor-particle {
    mix-blend-mode: multiply; /* Dark colors blend into the light background */
    opacity: 0.4;
}

@keyframes smoothLiquidFade {
    0% {
        transform: translate(-50%, -50%) scale(0.5);
        opacity: 0.6;
    }
    100% {
        transform: translate(-50%, -50%) scale(10);
        opacity: 0;
    }
}

/*=============== CERTIFICATES ===============*/
/*=============== CERTIFICATE HOVER POP-OUT ===============*/
.certificate__container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.certificate__card {
    position: relative;
    background-color: var(--container-color);
    padding: 1.25rem;
    border-radius: 1.5rem;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.certificate__img-box {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    height: 180px;
    margin-bottom: 1rem;
    transition: all 0.5s ease;
    z-index: 1;
}

.certificate__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

/* THE HOVER EFFECT: Large Pop-Out */
.certificate__card:hover {
    z-index: 100; /* Stays above other cards */
    border-color: var(--first-color); /* */
}

.certificate__card:hover .certificate__img-box {
    transform: scale(1.8) translateY(-20px); /* Adjust 1.8 to change how large it gets */
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
    height: auto; /* Allows the full certificate to show */
    border-radius: 0.5rem;
    cursor: zoom-in;
}

.certificate__card:hover .certificate__img {
    object-fit: contain; /* Shows the whole certificate without cropping */
}

/* Scaled down text for professionalism */
.certificate__title {
    font-size: var(--h3-font-size);
    margin-bottom: 0.25rem;
}

.certificate__description {
    font-size: var(--small-font-size);
}
/*=============== ATTRACTIVE HEADINGS ===============*/
.section__subtitle {
    display: block;
    font-size: var(--small-font-size);
    color: var(--first-color); /* Your theme blue */
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    text-align: center;
}

.section__title {
    position: relative;
    font-size: var(--h1-font-size);
    color: var(--title-color);
    text-align: center;
    margin-bottom: 3.5rem; /* Space before content starts */
    font-weight: 700;
}

/* Gradient Effect for Titles */
.section__title {
    background: linear-gradient(90deg, #fff, var(--first-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 10px rgba(37, 99, 235, 0.2));
}

/* Decorative Animated Underline */
.section__title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    right: 0;
    margin: auto;
    width: 60px;
    height: 4px;
    background-color: var(--first-color);
    border-radius: 2px;
}

/* Secondary underline dot for extra style */
.section__title::before {
    content: '';
    position: absolute;
    bottom: -12px;
    left: calc(50% + 40px);
    width: 8px;
    height: 4px;
    background-color: var(--title-color);
    border-radius: 2px;
}

/* Branded Logo Style */
.nav__logo span, 
.footer__title span {
    color: var(--first-color); /* Makes the dot blue/cyan */
    font-size: 1.5rem;
}


.work__title, 
.certificate__title {
    font-size: var(--h3-font-size);
    margin-bottom: 0.5rem;
}

.work__description,
.certificate__description {
    font-size: var(--small-font-size);
    line-height: 1.5;
    color: var(--text-color);
}

/* Adjust the button text size */
.button {
    font-size: var(--small-font-size);
    padding: 0.75rem 1.5rem;
}

.section__title {
    font-size: var(--h2-font-size);
    margin-bottom: 2rem; /* Reduced bottom margin for tighter feel */
    letter-spacing: 1px;
}

.section__subtitle {
    font-size: var(--smaller-font-size);
    margin-bottom: 0.25rem;
}