.contribution-section,
.contribution-anchor {
    scroll-margin-top: clamp(6rem, 14vw, 9rem);
}

/* Font stack aligned with other pages */
@font-face {
    font-family: 'Blinker';
    src: url('https://static.igem.wiki/teams/5836/fonts/blinker/blinkerregular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Fraunces';
    src: url('https://static.igem.wiki/teams/5836/fonts/fraunces/fraunces-72pt-regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Nixie One';
    src: url('https://static.igem.wiki/teams/5836/fonts/nixie-one/nixie-one-regular.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* Page background */
body {
    margin: 0;
    background-color: #0b1320 !important;
    color: rgba(230, 233, 245, 0.94);
    font-family: 'Nixie One', serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

#page_content {
    background-color: #0b1320 !important;
}

.main-content,
.container-fluid,
main {
    background-color: #0b1320 !important;
}

/* Feature image hero */
.contribution-hero {
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
    display: flex;
    justify-content: center;
    padding: clamp(1.5rem, 5vw, 3rem) 0;
    background-color: #0b1320;
}

.contribution-hero__image {
    display: block;
    width: min(92vw, 1400px);
    height: auto;
    object-fit: contain;
    object-position: center;
}

.contribution-hero__overlay {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    pointer-events: none;
    padding: clamp(1.5rem, 5vw, 3rem) 0;
}

.contribution-hero__title {
    font-family: 'Fraunces', serif;
    font-weight: bold;
    font-size: clamp(3.5rem, 10vw, 6rem);
    letter-spacing: 0.05em;
    color: #d7af6b;
    margin: 0;
    text-shadow: 0 18px 36px rgba(0, 0, 0, 0.45);
    text-transform: uppercase;
    text-align: center;
}

@media (max-width: 720px) {
    .contribution-hero {
        padding: clamp(1rem, 7vw, 2rem) 0;
    }

    .contribution-hero__image {
        width: min(94vw, 720px);
    }

    .contribution-hero__title {
        font-size: clamp(2.4rem, 10vw, 3.2rem);
        line-height: 1.1;
    }
}

.contribution-intro {
    display: flex;
    justify-content: center;
    padding: clamp(3rem, 9vw, 5rem) 1.5rem clamp(4rem, 9vw, 6rem);
}

.contribution-intro__inner {
    width: min(92vw, 1100px);
    text-align: center;
    display: grid;
    gap: clamp(1.6rem, 4vw, 2.2rem);
}

.contribution-intro__copy {
    font-family: 'Nixie One', serif;
    font-size: clamp(1.2rem, 2.6vw, 1.55rem);
    line-height: 1.78;
    color: white;
    margin: 0 auto;
    max-width: min(85ch, 100%);
    letter-spacing: 0.01em;
}

@media (max-width: 600px) {
    .contribution-intro {
        padding: clamp(2.5rem, 12vw, 3.5rem) 1rem clamp(3rem, 12vw, 4rem);
    }
}

.contribution-section {
    padding: clamp(3.5rem, 9vw, 6rem) clamp(1.5rem, 6vw, 3rem) clamp(4rem, 9vw, 6.5rem);
}

#inclusivity.contribution-section,
#scientific.contribution-section {
    padding-top: clamp(0.6rem, 2vw, 1.2rem);
}

#scientific.contribution-section {
    padding-top: clamp(0.2rem, 0.8vw, 0.6rem);
}

#inclusivity .contribution-feature__category-block,
#scientific .contribution-feature__category-block {
    margin-bottom: clamp(0.9rem, 2vw, 1.4rem);
}

.contribution-section__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 320px);
    gap: clamp(2rem, 6vw, 4rem);
    align-items: start;
    max-width: min(1100px, 95vw);
    margin: 0 auto;
}

.js-enabled [data-contribution-reveal],
.js-enabled [data-contribution-reveal].is-visible {
    opacity: 1;
    transform: none;
    transition: none;
}

.contribution-feature__category {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.9rem, 5.5vw, 3.2rem);
    font-weight: bold;
    color: #d7af6b;
    margin: 0 0 clamp(2.6rem, 5.8vw, 3.6rem);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.contribution-feature__category-block {
    display: flex;
    align-items: flex-start;
    gap: clamp(1rem, 3vw, 1.6rem);
    margin: 0 0 clamp(2.2rem, 4.8vw, 3.2rem);
}

.contribution-feature__category-block .contribution-feature__icon {
    margin-top: 0.1em;
}

.contribution-feature__category-block .contribution-feature__category {
    margin: 0;
}

.contribution-feature__heading {
    display: flex;
    align-items: flex-start;
    gap: clamp(1.2rem, 3.6vw, 2.2rem);
    margin-bottom: clamp(3.6rem, 6.5vw, 4.8rem);
}

.contribution-feature__heading .contribution-feature__title {
    margin: 0;
}

.contribution-feature__heading .contribution-feature__icon {
    margin-top: 0.15em;
}

.contribution-feature__icon {
    width: clamp(3rem, 10vw, 4.25rem);
    height: clamp(3rem, 10vw, 4.25rem);
    border-radius: 50%;
    object-fit: cover;
}

.contribution-feature__title {
    font-family: 'Nixie One', serif;
    font-size: clamp(1.9rem, 5.5vw, 3.2rem);
    font-weight: 600;
    color: #8fa6c2;
    margin: clamp(4.5rem, 9vw, 6.5rem) 0 clamp(3.6rem, 6.5vw, 4.8rem);
    letter-spacing: 0.08em;
}

.contribution-feature__subtitle {
    font-family: 'Nixie One', serif;
    font-size: clamp(1.5rem, 4.6vw, 2.05rem);
    font-weight: 600;
    color: #8fa6c2;
    margin: clamp(3.6rem, 6.5vw, 4.8rem) 0 clamp(2.4rem, 5.5vw, 3.4rem);
    letter-spacing: 0.08em;
}

.contribution-feature__figure {
    margin: 0 0 clamp(3rem, 6.8vw, 4.2rem);
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
}

.contribution-feature__image {
    display: block;
    width: 100%;
    height: auto;
}

.contribution-feature__video {
    margin: 0 0 clamp(3rem, 6.8vw, 4.2rem);
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.45);
    background: rgba(9, 16, 30, 0.85);
    max-width: min(100%, 960px);
}

.contribution-feature__video-frame {
    display: block;
    width: 100%;
    height: clamp(320px, 55vw, 520px);
    border: 0;
}

.contribution-parts-table-wrapper {
    margin: clamp(2.4rem, 7vw, 4.4rem) 0 clamp(3.6rem, 9vw, 5.2rem);
    padding: clamp(1.4rem, 4vw, 2rem);
    background: linear-gradient(135deg, rgba(18, 28, 48, 0.92), rgba(9, 17, 32, 0.88));
    border: 1px solid rgba(215, 175, 107, 0.28);
    border-radius: 1.2rem;
    box-shadow: 0 22px 44px rgba(0, 0, 0, 0.42);
    overflow-x: auto;
    /* Hide scrollbar on desktop browsers */
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* Internet Explorer 10+ */
}

.contribution-parts-table-wrapper::-webkit-scrollbar {
    display: none; /* WebKit browsers */
}

.contribution-parts-table {
    width: 100%;
    min-width: 680px;
    border-collapse: collapse;
    color: rgba(230, 233, 245, 0.95);
    font-family: 'Nixie One', serif;
}

.contribution-parts-table th,
.contribution-parts-table td {
    padding: clamp(0.75rem, 2.8vw, 1.15rem) clamp(0.8rem, 3vw, 1.4rem);
    text-align: left;
    border-bottom: 1px solid rgba(215, 175, 107, 0.2);
}

.contribution-parts-table th {
    font-family: 'Fraunces', serif;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #d7af6b;
    background: rgba(23, 33, 54, 0.85);
    border-bottom: 2px solid rgba(215, 175, 107, 0.35);
}

.contribution-parts-table tbody tr:nth-child(odd) {
    background: rgba(14, 23, 38, 0.55);
}

.contribution-parts-table tbody tr:hover {
    background: rgba(215, 175, 107, 0.12);
}

.contribution-parts-table td {
    letter-spacing: 0.01em;
}

@media (max-width: 768px) {
    .contribution-parts-table {
        min-width: 600px; /* Increased minimum width to ensure proper scrolling */
        font-size: clamp(0.9rem, 3.2vw, 1.05rem);
    }

    .contribution-parts-table-wrapper {
        padding: clamp(1rem, 4vw, 1.4rem);
        margin-left: -1rem;
        margin-right: -1rem;
        /* Show scrollbar on mobile for better UX */
        scrollbar-width: thin; /* Firefox */
        -ms-overflow-style: auto; /* Internet Explorer 10+ */
        /* Force horizontal scrolling */
        overflow-x: scroll;
        -webkit-overflow-scrolling: touch; /* Smooth scrolling on iOS */
    }
    
    .contribution-parts-table-wrapper::-webkit-scrollbar {
        display: block; /* WebKit browsers - show on mobile */
        height: 8px;
    }
    
    .contribution-parts-table-wrapper::-webkit-scrollbar-track {
        background: rgba(215, 175, 107, 0.1);
        border-radius: 4px;
    }
    
    .contribution-parts-table-wrapper::-webkit-scrollbar-thumb {
        background: rgba(215, 175, 107, 0.6);
        border-radius: 4px;
    }
    
    .contribution-parts-table-wrapper::-webkit-scrollbar-thumb:hover {
        background: rgba(215, 175, 107, 0.8);
    }
}

.contribution-feature__copy {
    font-family: 'serif';
    font-size: clamp(1.15rem, 2.5vw, 1.45rem);
    line-height: 1.78;
    color: white;
    margin: 0 0 clamp(2.2rem, 5vw, 3.1rem);
    letter-spacing: 0.01em;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
    max-width: 100%;
}

.contribution-downloads {
    margin-top: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: clamp(5rem, 10vw, 7.5rem);
    padding: clamp(1.5rem, 4vw, 2.2rem);
    border-radius: 1rem;
    background: linear-gradient(135deg, rgba(25, 40, 66, 0.85), rgba(15, 25, 45, 0.75));
    box-shadow: 0 18px 36px rgba(0, 0, 0, 0.4);
    display: grid;
    gap: clamp(1rem, 3vw, 1.6rem);
}

.contribution-downloads__title {
    font-family: 'Fraunces', serif;
    font-weight: bold;
    font-size: clamp(1.3rem, 3.2vw, 1.7rem);
    color: #d7af6b;
    margin: 0;
}

.contribution-downloads__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: clamp(0.6rem, 2vw, 1rem);
}

.contribution-downloads__link {
    font-family: 'Nixie One', serif;
    font-size: clamp(1.05rem, 2.3vw, 1.3rem);
    color: rgba(230, 233, 245, 0.95);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: color 0.2s ease;
    position: relative;
    letter-spacing: 0.01em;
}

.contribution-downloads__link::before {
    content: '\2193';
    font-size: 1.1em;
    color: #a6b9d6;
}

.contribution-downloads__link:hover,
.contribution-downloads__link:focus {
    color: #f4dca8;
}

.contribution-downloads__link--downloading {
    opacity: 0.6;
    pointer-events: none;
}

.contribution-scroll {
    position: sticky;
    top: clamp(6rem, 12vw, 8rem);
    background: rgba(11, 19, 32, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(215, 175, 107, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    padding: 0;
    display: flex;
    flex-direction: column;
    min-width: 0;
    width: clamp(260px, 32vw, 360px);
    margin-left: auto;
    transform: scale(0.9);
    transform-origin: top right;
}

.contribution-scroll--floating {
    position: fixed;
    top: clamp(5.5rem, 11vw, 7.5rem);
    left: auto;
    right: auto;
    margin: 0;
    transform: none;
    z-index: 40;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(14px);
}

.contribution-scroll__placeholder {
    visibility: hidden;
    pointer-events: none;
}

.contribution-scroll__title {
    font-family: 'Fraunces', serif;
    font-size: clamp(1.2rem, 2.8vw, 1.35rem);
    font-weight: 600;
    color: #d7af6b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(215, 175, 107, 0.2);
}

.contribution-scroll__nav {
    display: flex;
    flex-direction: column;
    padding: 0.75rem 0;
}

.contribution-scroll__item {
    display: block;
    padding: 0.6rem 1.25rem;
    color: #afc1d0;
    text-decoration: none;
    font-family: 'Nixie One', serif;
    font-size: clamp(1.05rem, 2.5vw, 1.25rem);
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    position: relative;
    letter-spacing: 0.01em;
}

.contribution-scroll__item:hover,
.contribution-scroll__item:focus {
    color: #d7af6b;
    background: rgba(215, 175, 107, 0.1);
    border-left-color: #d7af6b;
    text-decoration: none;
}

.contribution-scroll__item--active {
    color: #d7af6b;
    background: rgba(215, 175, 107, 0.15);
    border-left-color: #d7af6b;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .contribution-section__inner {
        grid-template-columns: 1fr;
    }

    .contribution-scroll {
        position: static;
        order: -1;
        width: min(100%, 420px);
        margin: 0 auto clamp(2rem, 6vw, 3rem);
        transform: none;
    }

    .contribution-scroll--floating {
        position: static;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    }
}

/* Additional mobile improvements */
@media (max-width: 480px) {
    .contribution-section__inner {
        max-width: 100%;
        padding: 0 1rem;
        grid-template-columns: 1fr;
    }
    
    .contribution-feature {
        width: 100%;
        max-width: 100%;
        overflow: hidden;
    }
    
    .contribution-feature__copy {
        font-size: clamp(1.1rem, 4vw, 1.3rem);
        line-height: 1.7;
        width: 100%;
        max-width: 100%;
        box-sizing: border-box;
        overflow-wrap: break-word;
        word-break: break-word;
    }
}

.contribution-anchor {
    height: 1px;
    width: 100%;
    margin: 0;
}