:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1e;
    --accent-color: #3c0090;
    --glass-bg: rgba(0, 0, 0, 0.02);
    --glass-border: rgba(0, 0, 0, 0.08);
    --scroll-progress: 0;
    /* Updated via JS */
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Outfit', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

.scroll-container {
    width: 100%;
}

.bcpc-section {
    position: relative;
    height: 150vh;
    /* Extra height to allow the image to shrink while scrolling */
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 15vh;
}

.image-wrapper {
    position: sticky;
    top: 10vh;
    width: 80vw;
    height: 70vh;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5);
    z-index: 10;
    transform: scale(calc(1 - var(--scroll-progress)));
    opacity: calc(1 - var(--scroll-progress) * 1.5);
    /* Disappears faster */
}

#shrinkImage {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.1s ease-out;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /*background: linear-gradient(to bottom, transparent, rgba(255, 255, 255, 0.4));*/
}

.bcpc-text {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 5;
    pointer-events: none;
    opacity: calc(1 - var(--scroll-progress) * 1);
}

.bcpc-text h1 {
    font-size: 5rem;
    font-weight: 700;
    letter-spacing: -2px;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #1a1a1e, var(--accent-color));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bcpc-text p {
    font-size: 1.5rem;
    color: rgba(26, 26, 30, 0.6);
}

.content-section {
    position: relative;
    z-index: 20;
    padding: 100px 0;
    background: transparent;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    margin-bottom: 40px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), background 0.3s ease, border-color 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: translateY(var(--parallax-y, 0px));
}

.card:hover {
    transform: translateY(calc(var(--parallax-y, 0px) - 5px));
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(98, 0, 238, 0.2);
}

.card.expanded {
    background: #ffffff;
    border-color: var(--accent-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.card h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

.card.expanded h2 {
    /*color: #000;*/
}

.card .summary {
    font-size: 1.1rem;
    color: rgba(0, 0, 0, 0.7);
    margin-bottom: 0;
    transition: margin 0.3s ease;
}

.card.expanded .summary {
    margin-bottom: 1.5rem;
}

.details-content {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.card.expanded .details-content {
    grid-template-rows: 1fr;
}

.details-content>* {
    min-height: 0;
}

.details-content p {
    overflow: hidden;
    font-size: 1.1rem;
    color: rgba(0, 0, 0, 0.6);
    line-height: 1.8;
}

.details-content img {
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    margin: 20px 0;
    display: block;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.details-content img:hover {
    transform: scale(1.02);
}

.expand-icon {
    position: absolute;
    top: 40px;
    right: 40px;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-color);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1), color 0.3s ease;
}

.card.expanded .expand-icon {
    transform: rotate(45deg);
    color: #000;
}

.spacer {
    height: 5vh;
}

.btn-container {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 30px 0 10px;
    flex-wrap: wrap;
}

.embed-youtube {
    position: relative;
    padding-bottom: 56.25%;
    /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    margin-bottom: 24px;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.embed-youtube iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.btn-action {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--accent-color);
    color: #ffffff;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    margin: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(98, 0, 238, 0.2);
    border: 2px solid transparent;
}

.btn-action:hover {
    background-color: #ffffff;
    color: var(--accent-color);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(98, 0, 238, 0.3);
}

.btn-action:active {
    transform: translateY(0);
}

@media (max-width: 768px) {
    .bcpc-text h1 {
        font-size: 3rem;
    }

    .image-wrapper {
        width: 90vw;
    }
}