.scroll-stack-container {
    position: relative;
    width: 100%;
    padding: 2rem 0 2rem;
    max-width: 1000px;
    margin: 0 auto;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 768px) {
    .scroll-stack-container {
        padding: 4rem 0 4rem;
        padding-left: 2rem;
        padding-right: 2rem;
    }
}

@media (min-width: 1024px) {
    .scroll-stack-container {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

.scroll-stack-card {
    transform-origin: top center;
    will-change: transform;
    height: auto;
    min-height: 240px;
    width: 100%;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    padding: 1.5rem 1.25rem;
    border-radius: 16px;
    box-sizing: border-box;
    position: sticky;
    /* Clean dark styling */
    background: linear-gradient(145deg,
            rgba(25, 25, 25, 0.98) 0%,
            rgba(12, 12, 12, 1) 100%);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 15px 35px -10px rgba(0, 0, 0, 0.6);
    overflow: hidden;
}

@media (min-width: 768px) {
    .scroll-stack-card {
        min-height: 300px;
        padding: 2.5rem 3rem;
        border-radius: 20px;
    }
}

.scroll-stack-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 30px 30px;
    pointer-events: none;
    opacity: 0.5;
}

.scroll-stack-end {
    width: 100%;
    height: 1px;
}

/* Project card specific styles */
.project-card-content {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.project-number {
    position: absolute;
    top: -0.5rem;
    right: -0.25rem;
    font-size: 4rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
    pointer-events: none;
    z-index: 1;
}

@media (min-width: 768px) {
    .project-number {
        top: -1rem;
        right: -0.5rem;
        font-size: 8rem;
    }
}

.project-category {
    display: inline-flex;
    padding: 0.375rem 0.75rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 9999px;
    font-size: 0.65rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    width: fit-content;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .project-category {
        padding: 0.5rem 1rem;
        font-size: 0.75rem;
        margin-bottom: 1.5rem;
    }
}

.project-title {
    font-size: 1.5rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0.75rem;
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .project-title {
        font-size: 2.5rem;
        margin-bottom: 1rem;
    }
}

.project-description {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.6;
    max-width: 500px;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .project-description {
        font-size: 1rem;
        line-height: 1.7;
        margin-bottom: 2rem;
    }
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: auto;
}

@media (min-width: 768px) {
    .project-tags {
        gap: 0.5rem;
    }
}

.project-tag {
    padding: 0.375rem 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 9999px;
    font-size: 0.7rem;
    color: rgba(255, 255, 255, 0.5);
}

@media (min-width: 768px) {
    .project-tag {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
}

.project-year {
    position: absolute;
    bottom: 1.5rem;
    right: 1.25rem;
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.3);
    font-weight: 500;
}

@media (min-width: 768px) {
    .project-year {
        bottom: 2.5rem;
        right: 2.5rem;
        font-size: 0.875rem;
    }
}

.project-link {
    position: absolute;
    top: 1.5rem;
    right: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
    cursor: pointer;
}

@media (min-width: 768px) {
    .project-link {
        top: 2.5rem;
        right: 2.5rem;
        width: 3rem;
        height: 3rem;
    }
}

.project-link:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transform: scale(1.1);
}

/* Gradient accents for each card */
.scroll-stack-card.card-1::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #06b6d4);
}

.scroll-stack-card.card-2::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #8b5cf6, #ec4899);
}

.scroll-stack-card.card-3::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #10b981, #14b8a6);
}

.scroll-stack-card.card-4::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #f97316, #fbbf24);
}

/* Section header styles */
.scroll-stack-header {
    padding: 2rem 0 1.5rem;
    position: relative;
    z-index: 20;
}

@media (min-width: 768px) {
    .scroll-stack-header {
        padding: 4rem 0 2rem;
    }
}

.scroll-stack-header-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.4);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
    .scroll-stack-header-label {
        font-size: 0.875rem;
        margin-bottom: 1rem;
    }
}

.scroll-stack-header-title {
    font-size: 1.875rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .scroll-stack-header-title {
        font-size: 2.5rem;
    }
}

@media (min-width: 1024px) {
    .scroll-stack-header-title {
        font-size: 3rem;
    }
}