@import url('https://fonts.cdnfonts.com/css/ica-rubrik-black');
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

/* Global Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins';
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: #252838;
    background: #f4f4f4;
    /* Light gray background for sections other than banner */
}

/* ---------------- Navigation ---------------- */
nav {
    position: absolute;
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    height: 70px;
    padding: 10px 40px;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.logo img {
    width: 70px;
    height: 70px;
}

/* Navigation Menu */
.nav-right ul {
    display: flex;
    align-items: center;
}

.nav-right ul li {
    list-style: none;
}

.nav-right ul li a {
    margin: 0 20px;
    text-decoration: none;
    font-size: 20px;
    font-weight: 600;
    color: #252838;
    transition: color 0.3s ease;
}

.nav-right ul li a:hover {
    color: #00e6e6;
}

/* ---------------- Banner ---------------- */
.banner {
    width: 100%;
    height: 100vh;
    text-align: center;
    overflow: hidden;
    position: relative;
    background-image: url("assets/images/bg.png");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

/* Rotating Slider */
.banner .slider {
    position: absolute;
    width: 200px;
    height: 250px;
    top: 10%;
    left: calc(50% - 100px);
    transform-style: preserve-3d;
    transform: perspective(1000px);
    animation: autoRun 20s linear infinite;
}

@keyframes autoRun {
    from {
        transform: perspective(1000px) rotateX(-16deg) rotateY(0deg);
    }

    to {
        transform: perspective(1000px) rotateX(-16deg) rotateY(360deg);
    }
}

.banner .slider .item {
    position: absolute;
    inset: 0;
    transform: rotateY(calc((var(--position) - 1) * (360 / var(--quantity)) * 1deg)) translateZ(550px);
}

.banner .slider .item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

/* Banner Content */
.banner .content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
    padding: 0 20px;
}

.banner .content h1 {
    font-family: 'ICA Rubrik Black', sans-serif;
    font-size: 6em;
    line-height: 1em;
    color: #ffffff;
    position: relative;
    text-align: center;
    text-shadow: 0 0 15px rgba(0, 230, 230, 0.8);
}

.banner .content h1::after {
    position: absolute;
    inset: 0;
    content: attr(data-content);
    z-index: 2;
    -webkit-text-stroke: 2px #0e5454;
    color: transparent;
}

.banner .content .author {
    position: absolute;
    bottom: 0;
    left: 40px;
    margin-top: 20px;
    font-size: 1.2em;
    color: #23202b;
    text-align: center;
}

/* Background Model Decoration */
.banner .model {
    background-image: url("assets/images/bg-img.png");
    width: 100%;
    height: 70vh;
    position: absolute;
    bottom: 0;
    left: 0;
    background-size: auto 130%;
    background-repeat: no-repeat;
    background-position: top center;
    z-index: 1;
    opacity: 0.6;
}

/* ---------------- Timeline Section ---------------- */

.timeline-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}


.timeline-head {
    text-align: center;
    color: #252838;
    margin: 50px 0 30px;
    font-size: 3.5em;
    font-weight: bold;
    text-decoration: uppercase;
}

.autoBlur {
    animation: autoBlurAnimation linear both;
    animation-timeline: view();
}

@keyframes autoBlurAnimation {
    0% {
        filter: blur(40px);
    }

    30%,
    80% {
        filter: blur(0);
        transform: translateY(0px);
        opacity: 1;
    }

    100% {
        filter: blur(40px);
        transform: translateY(-200px);
        opacity: 0;
    }
}


.timeline {
    position: relative;
    max-width: 800px;
    margin: auto;
    padding: 20px 0;
}

.timeline::after {
    content: "";
    position: absolute;
    width: 6px;
    background-color: #00e6e6;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -3px;
}

.container {
    padding: 20px 40px;
    position: relative;
    background-color: inherit;
    width: 70%;
    height: auto;
    transition: 0.5s;
}

.container.left {
    left: -20%;
}

.container.right {
    left: 50%;
}

.timeline-content {
    padding: 20px;
    background: #313131;
    color: #fff;
    position: relative;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 230, 230, 0.6);
}


.timeline-content:hover {
    transform: translateX(-4px) scale(1.06);
    box-shadow: 0 0 15px #252838;
    background-color: #0e5454;
}

.container::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    background-color: #00e6e6;
    border: 3px solid #fff;
    top: 30px;
    border-radius: 50%;
    z-index: 1;
}

.container.right::after {
    left: -10px;
}

.autoDisplay {
    animation: autoDisplayAnimation both;
    animation-timeline: view(70% 5%);
}

@keyframes autoDisplayAnimation {
    from {
        opacity: 0;
        transform: translateY(200px) scale(0.3);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/*  ----------------------- Future Section ----------------------- */

.future-section {
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
}

.future-head {
    margin-top: 30px;
    text-align: center;
    width: 50vw;
}

.future-head h1 {
    font-size: 3.5em;
    color: #252838;
    font-weight: bold;
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    /* 3 cards per row */
    gap: 3rem;
    padding: 2rem;
}

.card {
    width: 400px;
    height: 450px;
    display: flex;
    flex-direction: column;
    /* stacks left + right on mobile */
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.5);
}

.card-left {
    padding: 1.5rem;
}

.card-left h2 {
    font-size: 1.3rem;
    color: #00373c;
    margin-bottom: 1rem;
}

.card-left p {
    font-size: 1rem;
    color: #6a719c;
    margin-bottom: 1rem;
}

.card-left button {
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 8px;
    background: #23202b;
    color: #fff;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s ease;
}

.card-left button:hover {
    color: #252838;
    background: transparent;
    border-radius: 2px solid #23202b;
    box-shadow: 0 0 15px;
}

.card-right img {
    text-align: center;
    border-radius: 15px;
    /* margin: 10px; */
    width: 100%;
    height: 300px;
    display: block;
    object-fit: cover;
    transition: 0.5s;
}

.card-right img:hover {
    transform: scale(1.06);
}


/* ---------------------- Quiz Section -------------------- */


.quiz-section {
    margin-top: 100px;
    text-align: center;
    padding: 3rem 2rem;
    background: rgba(0, 0, 0, 0.8);
    border-radius: 15px;
    margin: 2rem auto;
    max-width: 800px;
    box-shadow: 0 0 20px rgba(0, 234, 255, 0.6);
    backdrop-filter: blur(10px);
}

.quiz-section h1 {
    color: #00eaff;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-decoration: underline;
    text-underline-offset: 8px;
}

.quiz-container {
    text-align: center;
    width: auto;
    max-width: 850px;
    height: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.quiz-container .btn {
    font-size: 20px;
    width: 60%;
    margin-top: 20px;
    text-align: center;
    background: #fff;
    color: #252838;
    border: 1px solid black;
    box-shadow: 0 0 3px;
    border-radius: 10px;
    padding: 20px 30px;
    transition: 0.5s;
    /* animation: blink 5s linear infinite; */
}

.quiz-container .btn:hover {
    transform: scale(1.03) translateY(-3px);
    box-shadow: 0 0 5px #02bfbf;
}

.quiz-container .question {
    margin-top: 20px;
    font-size: 26px;
    color: white;
}

.quiz-container .choices {
    text-align: left;
    margin-top: 20px;
}

.choice {
    font-size: 20px;
    background-color: #eee;
    color: #000;
    margin: 10px auto;
    padding: 10px;
    border-radius: 10px;
    text-align: left;
    width: 400px;
    cursor: pointer;
}

.choice:hover {
    background-color: #ddd;
}

.choice.selected {
    background-color: #2a46ff;
    color: #fff;
}

.choiceCard {
    font-size: 24px;
    margin-top: 20px;
}

.scoreCard {
    color: white;
}

.answer-display {
    color: white;
}

/* @keyframes blink{
    0%, 20%, 40%, 60%, 80%{
        transform: scale(1.1);
    }
    10%, 30%, 50%, 70%, 90%{
        transform: scale(1);
    }
} */


/* ----------------------------------- Tribute Section ---------------------------------- */

.tribute-container {
    position: relative;
}


.carousel {
    margin-top: 50px;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.carousel .tri-list .tri-item {
    position: absolute;
    inset: 0 0 0 0;
}

.carousel .tri-list .tri-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.carousel .tri-list .tri-item .tri-content {
    position: absolute;
    top: 20%;
    width: 1140px;
    max-width: 80%;
    left: 50%;
    transform: translateX(-50%);
    padding-right: 30%;
    box-sizing: border-box;
    color: #fff;
    text-shadow: 0 5px 10px #0004;
}

.carousel .tri-list .tri-item .tri-content .author {
    font-weight: bold;
    letter-spacing: 10px;
}

.carousel .tri-list .tri-item .tri-content .title,
.carousel .tri-list .tri-item .tri-content .topic {
    font-weight: bold;
    font-size: 3em;
    line-height: 1.3em;
}

.carousel .tri-list .tri-item .tri-content .topic {
    color: #f1683a;
}

/* .carousel .tri-list .tri-item .tri-content .des ul li{
    color: #29b5c2;
} */

.carousel .tri-list .tri-item .tri-content .buttons {
    display: grid;
    grid-template-columns: repeat(2, 130px);
    grid-template-rows: 40px;
    gap: 5px;
    margin-top: 20px;
}

.carousel .tri-list .tri-item .tri-content button {
    border-radius: 25px;
    color: #fff;
    border: none;
    background-color: #6b6a8d;
    letter-spacing: 3px;
    font-family: Poppins;
    font-weight: 500;
}

.carousel .tri-list .tri-item .tri-content button:hover {
    box-shadow: 0 0 3px #6b6a8d;
    background-color: #525171;
}


/*  -------- Thumbnail --------- */
.thumbnail {
    position: absolute;
    bottom: 50px;
    left: 50%;
    width: max-content;
    z-index: 100;
    display: flex;
    gap: 20px;
}

.thumbnail .tri-item {
    width: 150px;
    height: 220px;
    flex-shrink: 0;
    position: relative;
}

.thumbnail .tri-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.thumbnail .tri-item .tri-content {
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
}

.thumbnail .tri-item .tri-content .tri-title {
    font-weight: bold;
    font-size: 15px;
}

.thumbnail .tri-item .tri-content .des {
    font-weight: normal;
    font-size: 12px;
}

.carousel .tri-list .tri-item .tri-buttons {
    margin-top: 20px;
}

.carousel .tri-list .tri-item .tri-buttons button {
    padding: 10px 15px;
}

/* arrows */
.arrows {
    position: absolute;
    top: 80%;
    right: 52%;
    width: 300px;
    max-width: 30%;
    display: flex;
    gap: 10px;
}

.arrows button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #eee4;
    border: none;
    font-family: monospace;
    color: #fff;
    font-weight: bold;
    font-size: large;
    transition: 0.5s;
    z-index: 100;
}

.arrows button:hover {
    background-color: #eee;
    color: #555;
}

.carousel .tri-list .tri-item:nth-child(1) {
    z-index: 1;
}

.carousel .tri-list .tri-item:nth-child(1) .author,
.carousel .tri-list .tri-item:nth-child(1) .title,
.carousel .tri-list .tri-item:nth-child(1) .topic,
.carousel .tri-list .tri-item:nth-child(1) .des,
.carousel .tri-list .tri-item:nth-child(1) .tri-buttons {
    transform: translateY(50px);
    filter: blur(20px);
    opacity: 0;
    animation: showContent 0.5s 1s linear forwards;
}

@keyframes showContent {
    to {
        opacity: 1;
        filter: blur(0);
        transform: translateY(0);
    }
}

.carousel .tri-list .tri-item:nth-child(1) .title {
    animation-delay: 1.2s;
}

.carousel .tri-list .tri-item:nth-child(1) .topic {
    animation-delay: 1.4s;
}

.carousel .tri-list .tri-item:nth-child(1) .des {
    animation-delay: 1.6s;
}

.carousel .tri-list .tri-item:nth-child(1) .tri-buttons {
    animation-delay: 1.8s;
}

/* affect next click */
.carousel.next .tri-list .tri-item:nth-child(1) img {
    width: 150px;
    height: 220px;
    position: absolute;
    left: 50%;
    bottom: 50px;
    border-radius: 20px;
    animation: showImage 0.5s linear 1 forwards;
}

@keyframes showImage {
    to {
        width: 100%;
        height: 100%;
        left: 0;
        bottom: 0;
        border-radius: 0;
    }
}

.carousel.next .thumbnail .tri-item:nth-child(1) img {
    width: 0;
    overflow: hidden;
    animation: showThumbnail 0.5s linear 1 forwards;
}

@keyframes showThumbnail {
    to {
        width: 150px;
    }
}

.carousel.next .thumbnail {
    transform: translateX(150px);
    animation: transformThumbnail 0.5s linear 1 forwards;
}

@keyframes transformThumbnail {
    to {
        transform: translateX(0);
    }
}

/* effect prev click */
.carousel.prev .tri-list .tri-item:nth-child(2) {
    z-index: 2;
}

.carousel.prev .tri-list .tri-item:nth-child(2) img {
    position: absolute;
    bottom: 0;
    left: 0;
    animation: outImage 0.5s linear 1 forwards;
}

@keyframes outImage {
    to {
        width: 150px;
        height: 220px;
        border-radius: 20px;
        left: 50%;
        bottom: 50px;
    }
}

.carousel.prev .thumbnail .tri-item:nth-child(1) {
    width: 0;
    overflow: hidden;
    animation: showThumbnail 0.5s linear 1 forwards;
    opacity: 0;
}

.carousel.prev .tri-list .tri-item:nth-child(2) .author,
.carousel.prev .tri-list .tri-item:nth-child(2) .title,
.carousel.prev .tri-list .tri-item:nth-child(2) .topic,
.carousel.prev .tri-list .tri-item:nth-child(2) .des,
.carousel.prev .tri-list .tri-item:nth-child(2) .tri-buttons {
    animation: contentOut 1.5s linear 1 forwards;
}

@keyframes contentOut {
    to {
        transform: translateY(-150px);
        filter: blur(20px);
        opacity: 0;
    }
}

.carousel.next .arrows button,
.carousel.prev .arrows button {
    pointer-events: none;
}

.time {
    width: 100%;
    height: 3px;
    background-color: #f1683a;
    position: absolute;
    z-index: 100;
    top: 0;
    left: 0;
}

.carousel.next .time,
.carousel.prev .time {
    width: 100%;
    animation: timeRunning 2s linear 1 forwards;
}

@keyframes timeRunning {
    to {
        width: 0;
    }
}



/* ------------------------------ About Section ------------------------ */

/* ---------- Contact Section ---------- */
#contact {
    color: #000;
    /* full-width background to show the blur effect */
    min-height: 100vh;
    padding: 60px 0;
    background: url('assets/images/bg-img.png') center/cover no-repeat;
    /* optional bg image */
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Glass-effect container */
#contact .container {
    color: #000;
    width: 90%;
    height: 70vh;
    max-width: 1100px;
    padding: 40px;
    border-radius: 25px;

    /* ✨ Glassmorphism */
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);

    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

/* Layout for left & right columns */
#contact .row {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    justify-content: space-between;
}

/* Left column */
.contact-left {
    flex: 1 1 300px;
    color: #000000;
}

.contact-left h1.sub-title {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.contact-left p {
    margin: 10px 0;
    font-size: 1.1rem;
}

.contact-left i {
    color: #252838;
    margin-right: 10px;
}

/* Social icons */
.social-icons {
    margin-top: 20px;
}

.social-icons a {
    display: inline-block;
    margin-right: 15px;
    color: #000000;
    font-size: 1.5rem;
    transition: all 0.3s;
}

.social-icons a:hover {
    color: #252838;
    transform: translateY(-5px);
}

/* Right column – form */
.contact-right {
    flex: 1 1 300px;
}

.contact-right form input,
.contact-right form textarea {
    width: 100%;
    padding: 12px 15px;
    margin: 10px 0;
    border: none;
    outline: none;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.15);
    color: #000000;
    font-size: 1rem;

    /* subtle inner glow */
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.2);
}

.contact-right form input:hover,
.contact-right form textarea:hover {
    box-shadow: 0 0 6px rgba(255, 255, 255);
}

.contact-right form input::placeholder,
.contact-right form textarea::placeholder {
    color: rgba(1, 1, 1, 0.7);
}

.btn.btn2 {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 30px;
    background: #252838;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s;
}

.btn.btn2:hover {
    box-shadow: 0 0 10px #fff;
    background: #fff;
    color: #252838;
    transform: translateY(-3px);
    box-shadow: 0 0 5px;

}

/* Message span after submit */
#msg {
    display: block;
    margin-top: 10px;
    color: rgb(23, 3, 43);
    font-weight: 500;
}

/* Copyright */
.copyright {
    margin-top: 40px;
    color: rgba(255, 255, 255, 0.7);
    text-align: center;
    font-size: 0.9rem;
}

.copyright i {
    color: #252838;
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    #contact .row {
        flex-direction: column;
        gap: 30px;
    }
}




/* ---------------- Responsive Timeline ---------------- */
@media screen and (max-width: 768px) {
    .timeline::after {
        left: 20px;
    }

    .container {
        width: 100%;
        padding-left: 60px;
        padding-right: 25px;
    }

    .container.right {
        left: 20px;
    }

    .container::after {
        left: 15px;
    }
}

@media (max-width: 900px) {
    .cards {
        grid-template-columns: repeat(2, 1fr);
        /* 2 cards per row */
    }
}

@media (max-width: 600px) {
    .cards {
        grid-template-columns: 1fr;
        /* 1 card per row */
    }

    .card {
        flex-direction: column;
        /* stack text and image */
    }
}

/* -- tribute section media quary */
@media screen and (max-width: 678px) {
    .carousel .tri-list .tri-item .tri-content {
        padding-right: 0;
    }

    .carousel .tri-list .tri-item .tri-content .title {
        font-size: 30px;
    }
}

@media (max-width:1200px) {
    .carousel .tri-list .tri-item .tri-content {
        width: 90%;
        padding-right: 20%;
        top: 15%;
    }

    .carousel .tri-list .tri-item .tri-content .title,
    .carousel .tri-list .tri-item .tri-content .topic {
        font-size: 2.5em;
    }
}

/* Tablets  (≤992px) */
@media (max-width:992px) {
    .carousel {
        height: 80vh;
    }

    .carousel .tri-list .tri-item .tri-content {
        padding-right: 10%;
        top: 12%;
    }

    .carousel .tri-list .tri-item .tri-content .title,
    .carousel .tri-list .tri-item .tri-content .topic {
        font-size: 2em;
    }

    .thumbnail .tri-item {
        width: 120px;
        height: 180px;
    }

    .arrows {
        top: 75%;
        right: 50%;
    }
}

/* Large phones / small tablets  (≤768px) */
@media (max-width:768px) {
    .carousel {
        height: 70vh;
    }

    .carousel .tri-list .tri-item .tri-content {
        top: 10%;
        padding-right: 5%;
    }

    .carousel .tri-list .tri-item .tri-content .title,
    .carousel .tri-list .tri-item .tri-content .topic {
        font-size: 1.6em;
    }

    .carousel .tri-list .tri-item .tri-content .des {
        font-size: 0.9em;
    }

    .thumbnail {
        gap: 10px;
        bottom: 30px;
    }

    .thumbnail .tri-item {
        width: 100px;
        height: 150px;
    }

    .arrows {
        width: 200px;
        top: 70%;
    }
}

/* Small phones  (≤576px) */
@media (max-width:576px) {
    .carousel {
        height: 60vh;
    }

    .carousel .tri-list .tri-item .tri-content {
        top: 8%;
        padding: 0 10px;
    }

    .carousel .tri-list .tri-item .tri-content .title,
    .carousel .tri-list .tri-item .tri-content .topic {
        font-size: 1.3em;
        line-height: 1.2em;
    }

    .carousel .tri-list .tri-item .tri-content .des {
        font-size: 0.8em;
    }

    .thumbnail .tri-item {
        width: 80px;
        height: 110px;
    }

    .arrows {
        width: 150px;
        top: 65%;
        right: 50%;
    }

    .arrows button {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
}

/* Very small devices  (≤400px) */
@media (max-width:400px) {

    .carousel .tri-list .tri-item .tri-content .title,
    .carousel .tri-list .tri-item .tri-content .topic {
        font-size: 1.1em;
    }

    .carousel .tri-list .tri-item .tri-content .des {
        font-size: 0.7em;
    }
}


/* ----- banner section ----- */
/* ---------- Responsive Media Queries ---------- */

/* Large tablets / small laptops  (≤1200px) */
@media (max-width:1200px) {
    .banner .content h1 {
        font-size: 5em;
    }

    .banner .slider {
        width: 180px;
        height: 230px;
        top: 12%;
    }
}

/* Tablets  (≤992px) */
@media (max-width:992px) {
    nav {
        padding: 10px 20px;
    }

    .nav-right ul li a {
        margin: 0 15px;
        font-size: 18px;
    }

    .banner .content h1 {
        font-size: 4em;
    }

    .banner .slider {
        width: 160px;
        height: 200px;
        top: 14%;
        transform: perspective(800px);
    }
}

/* Large phones / small tablets  (≤768px) */
@media (max-width:768px) {
    nav {
        flex-direction: column;
        height: auto;
    }

    .nav-right ul {
        flex-wrap: wrap;
        justify-content: center;
        margin-top: 10px;
    }

    .nav-right ul li a {
        margin: 5px 10px;
        font-size: 16px;
    }

    .banner {
        background-attachment: scroll;
        /* avoid jitter on mobile */
    }

    .banner .content h1 {
        font-size: 3em;
        text-shadow: 0 0 10px rgba(0, 230, 230, 0.6);
    }

    .banner .slider {
        width: 140px;
        height: 180px;
        top: 18%;
        transform: perspective(700px);
    }

    .banner .content .author {
        left: 20px;
        font-size: 1em;
    }
}

/* Small phones  (≤576px) */
@media (max-width:576px) {
    .banner .content h1 {
        font-size: 2.4em;
        line-height: 1.1em;
    }

    .banner .slider {
        width: 110px;
        height: 150px;
        top: 20%;
    }

    .banner .content .author {
        font-size: 0.9em;
        left: 15px;
        bottom: 10px;
    }

    .nav-right ul li a {
        margin: 5px;
        font-size: 15px;
    }
}

/* Very small devices  (≤400px) */
@media (max-width:400px) {
    .banner .content h1 {
        font-size: 2em;
    }

    .banner .slider {
        width: 90px;
        height: 120px;
    }

    .banner .content .author {
        font-size: 0.8em;
    }
}


/* ---- TIMELINE ----- */
/* ---------- Timeline Responsive Media Queries ---------- */

/* Tablets & small laptops  (≤992px) */
@media (max-width:992px) {
    .timeline-head {
        font-size: 3em;
        margin: 40px 0 20px;
    }

    .timeline {
        max-width: 700px;
    }

    .container {
        width: 80%;
        padding: 20px 30px;
    }

    .container.left {
        left: -15%;
    }

    .container.right {
        left: 45%;
    }
}

/* Large phones / small tablets  (≤768px) */
@media (max-width:768px) {
    .timeline-head {
        font-size: 2.5em;
    }

    /* Stack timeline items full-width */
    .timeline::after {
        left: 8px;
        /* move line to left edge */
    }

    .container {
        width: 100%;
        padding-left: 40px;
        padding-right: 25px;
        margin-bottom: 30px;
    }

    .container.left,
    .container.right {
        left: 0;
        /* reset positioning */
    }

    .container::after {
        left: 0;
        /* place marker on the line */
        right: auto;
    }
}

/* Small phones  (≤576px) */
@media (max-width:576px) {
    .timeline-head {
        font-size: 2em;
        margin: 30px 0 15px;
    }

    .timeline {
        padding: 10px 0;
    }

    .container {
        padding-left: 35px;
        padding-right: 20px;
    }

    .timeline-content {
        padding: 15px;
        font-size: 0.95em;
    }

    .container::after {
        width: 16px;
        height: 16px;
        left: -2px;
    }
}

/* Very small devices  (≤400px) */
@media (max-width:400px) {
    .timeline-head {
        font-size: 1.8em;
    }

    .timeline-content h2 {
        font-size: 1.1em;
    }

    .timeline-content p {
        font-size: 0.9em;
    }
}



/* ----CONTACT SECTION ---- */
/* ---------- Contact Section Responsive Media Queries ---------- */

/* Tablets & small laptops  (≤992px) */
@media (max-width:992px){
  #contact .container{
    height: auto;          /* allow natural height */
    padding: 40px 30px;
  }
  .contact-left h1.sub-title{
    font-size: 2rem;
  }
  .contact-left p,
  .contact-right form input,
  .contact-right form textarea{
    font-size: 1rem;
  }
}

/* Large phones / small tablets  (≤768px) */
@media (max-width:768px){
  #contact .row{
    flex-direction: column;    /* stack columns */
    gap: 30px;
    align-items: center;
  }
  .contact-left,
  .contact-right{
    flex: 1 1 100%;
    text-align: center;
  }
  .contact-left h1.sub-title{
    font-size: 1.8rem;
    margin-bottom: 15px;
  }
  .social-icons{
    margin-top: 15px;
  }
  .social-icons a{
    margin: 0 10px;
    font-size: 1.4rem;
  }
  .btn.btn2{
    width: 100%;
    max-width: 250px;
  }
}

/* Small phones  (≤576px) */
@media (max-width:576px){
  #contact{
    padding:40px 0;
  }
  #contact .container{
    width:95%;
    padding:25px 20px;
    border-radius:18px;
  }
  .contact-left h1.sub-title{
    font-size:1.6rem;
  }
  .contact-right form input,
  .contact-right form textarea{
    font-size:0.95rem;
    padding:10px 12px;
  }
  .btn.btn2{
    padding:10px 25px;
    font-size:0.95rem;
  }
  .copyright{
    margin-top:25px;
    font-size:0.8rem;
  }
}

/* Very small devices  (≤400px) */
@media (max-width:400px){
  .contact-left h1.sub-title{
    font-size:1.4rem;
  }
  .social-icons a{
    font-size:1.2rem;
  }
}


/* ---- QUIZ SECTION ----- */
/* ---------- Quiz Section Responsive Media Queries ---------- */

/* Tablets & small laptops (≤992px) */
@media (max-width:992px){
  .quiz-section h1{
    font-size:2.2rem;
  }
  .quiz-container .question{
    font-size:24px;
  }
  .choice{
    width:350px;
    font-size:19px;
  }
  .quiz-container .btn{
    width:70%;
    font-size:18px;
    padding:18px 25px;
  }
}

/* Large phones / small tablets (≤768px) */
@media (max-width:768px){
  .quiz-section{
    padding:2.5rem 1.5rem;
    margin:1.5rem auto;
    max-width:95%;
  }
  .quiz-section h1{
    font-size:2rem;
  }
  .quiz-container .question{
    font-size:22px;
  }
  .choice{
    width:100%;
    max-width:320px;
    font-size:18px;
    padding:10px 12px;
  }
  .quiz-container .btn{
    width:80%;
    font-size:17px;
    padding:15px 22px;
  }
}

/* Small phones (≤576px) */
@media (max-width:576px){
  .quiz-section{
    padding:2rem 1rem;
    border-radius:12px;
  }
  .quiz-section h1{
    font-size:1.8rem;
    text-underline-offset:6px;
  }
  .quiz-container .question{
    font-size:20px;
  }
  .choice{
    max-width:280px;
    font-size:17px;
    margin:8px auto;
  }
  .quiz-container .btn{
    width:90%;
    font-size:16px;
    padding:12px 20px;
  }
  .scoreCard{
    font-size:0.95rem;
  }
}

/* Very small devices (≤400px) */
@media (max-width:400px){
  .quiz-section h1{
    font-size:1.6rem;
  }
  .quiz-container .question{
    font-size:18px;
  }
  .choice{
    max-width:240px;
    font-size:16px;
    padding:8px 10px;
  }
  .quiz-container .btn{
    font-size:15px;
    padding:10px 18px;
  }
}


/* ---------- FUTURE SECTION ------------ */
/* ---------- Future Section Responsive Media Queries ---------- */

/* Large tablets / small laptops  (≤1200px) */
@media (max-width:1200px){
  .future-head{
    width:65vw;
  }
  .future-head h1{
    font-size:3em;
  }
  .cards{
    grid-template-columns: repeat(2, 1fr); /* 2 cards per row */
    gap:2.5rem;
  }
  .card{
    width:100%;
    max-width:360px;
    height:auto;
  }
  .card-right img{
    height:260px;
  }
}

/* Tablets (≤992px) */
@media (max-width:992px){
  .future-head h1{
    font-size:2.6em;
  }
  .cards{
    gap:2rem;
    padding:1.5rem;
  }
  .card-left h2{
    font-size:1.2rem;
  }
  .card-left p{
    font-size:0.95rem;
  }
}

/* Large phones / small tablets (≤768px) */
@media (max-width:768px){
  .future-head{
    width:80vw;
    margin-top:20px;
  }
  .future-head h1{
    font-size:2.2em;
  }
  .cards{
    grid-template-columns: 1fr;  /* single column */
    gap:1.5rem;
    padding:1rem;
  }
  .card{
    max-width:90%;
    margin:auto;
  }
  .card-right img{
    height:240px;
  }
}

/* Small phones (≤576px) */
@media (max-width:576px){
  .future-head h1{
    font-size:1.9em;
  }
  .card-left{
    padding:1rem;
  }
  .card-left h2{
    font-size:1.1rem;
  }
  .card-left p{
    font-size:0.9rem;
  }
  .card-left button{
    padding:0.4rem 0.8rem;
    font-size:0.9rem;
  }
  .card-right img{
    height:200px;
  }
}

/* Very small devices (≤400px) */
@media (max-width:400px){
  .future-head h1{
    font-size:1.6em;
  }
  .card-left h2{
    font-size:1rem;
  }
  .card-left p{
    font-size:0.85rem;
  }
  .card-left button{
    font-size:0.85rem;
  }
}