.portfolio {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 48px;
    align-items: start;
}

.portfolio__media {
    position: relative;
}

.portfolio__sticky {
    position: relative;
    min-height: 420px;
    padding: 0 2vw;
}

.portfolio__frame {
    width: min(800px, calc(100vw - 10vw));
    max-width: 100%;
    border-radius: 40px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.3);
    box-shadow: var(--shadow);
    aspect-ratio: 16 / 9;
    will-change: transform;
    transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

.portfolio__frame video,
.portfolio__frame iframe {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.45s ease;
}

.portfolio__frame iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.portfolio__sticky video.is-updating,
.portfolio__sticky iframe.is-updating {
    filter: blur(2px);
}

.portfolio__list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.portfolio-card {
    padding: 32px;
    border-radius: 28px;
    background: rgba(4, 10, 28, 0.55);
    border: 1px solid var(--border);
    backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
    transition: border 0.35s ease, transform 0.35s ease, box-shadow 0.35s ease, background 0.35s ease;
}

.portfolio-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: radial-gradient(circle at top left, rgba(51, 183, 255, 0.15), transparent 60%);
    opacity: 0;
    transition: opacity 0.35s ease;
    pointer-events: none;
}

.portfolio-card > * {
    position: relative;
    z-index: 1;
}

.portfolio-card__eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 12px;
    color: var(--accent-2);
    margin-bottom: 8px;
}

.portfolio-card h3 {
    font-size: 28px;
    margin-bottom: 12px;
}

.portfolio-card p {
    color: var(--text-muted);
}

.portfolio-card__price {
    margin-top: 18px;
    color: var(--accent);
    font-weight: 600;
}

.portfolio-card.is-active {
    border-color: rgba(51, 183, 255, 0.8);
    background: linear-gradient(135deg, rgba(51, 183, 255, 0.12), rgba(7, 24, 51, 0.85));
    box-shadow: 0 25px 50px rgba(51, 183, 255, 0.35);
    transform: translateX(12px);
}

.portfolio-card.is-active::before {
    opacity: 1;
}

.portfolio-card.is-active h3,
.portfolio-card.is-active .portfolio-card__price {
    color: var(--text-primary);
}

.portfolio-card.is-active p {
    color: rgba(244, 246, 251, 0.85);
}

.portfolio__full-link {
    margin-top: 32px;
}

.portfolio__full-link .btn--outline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding-inline: 28px;
    border-radius: 999px;
    border-width: 1px;
    border-color: rgba(51, 183, 255, 0.7);
    background: radial-gradient(circle at left, rgba(51, 183, 255, 0.3), transparent 60%);
    box-shadow: 0 14px 40px rgba(7, 24, 51, 0.8);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 13px;
    position: relative;
    overflow: hidden;
}

.portfolio__full-link .btn--outline::after {
    content: '→';
    font-size: 14px;
    transition: transform 0.3s ease, opacity 0.3s ease;
    opacity: 0.8;
}

.portfolio__full-link .btn--outline:hover::after {
    transform: translateX(4px);
    opacity: 1;
}

.portfolio__full-link .btn--outline:hover {
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    color: #001025;
    box-shadow: 0 18px 48px rgba(51, 183, 255, 0.55);
}
@media (max-width: 900px) {
    .portfolio {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .portfolio__media {
        position: sticky;
        top: 0;
        z-index: 5;
        background: linear-gradient(180deg, var(--bg-start) 0%, transparent 100%);
        padding-bottom: 20px;
        margin-bottom: 20px;
    }

    .portfolio__sticky {
        position: relative;
        top: 0;
        height: auto;
        min-height: auto;
        padding: 0;
        margin-bottom: 0;
    }

    .portfolio__frame {
        width: 100%;
        border-radius: 24px;
        transform: none !important;
        position: relative;
    }

    .portfolio__list-wrapper {
        position: relative;
        margin: 0 -4vw;
        padding: 0 4vw;
    }

    .portfolio__list-hint {
        text-align: center;
        font-size: 13px;
        color: var(--accent-2);
        letter-spacing: 0.1em;
        margin-bottom: 16px;
        opacity: 0.7;
        animation: pulse-hint 2s ease-in-out infinite;
    }

    @keyframes pulse-hint {
        0%, 100% { opacity: 0.7; }
        50% { opacity: 1; }
    }

    .portfolio__list {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        gap: 16px;
        padding: 0 0 20px;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        position: relative;
    }

    .portfolio__list-wrapper::before,
    .portfolio__list-wrapper::after {
        content: '';
        position: absolute;
        top: 0;
        bottom: 0;
        width: 60px;
        z-index: 3;
        pointer-events: none;
        transition: opacity 0.3s ease;
    }

    .portfolio__list-wrapper::before {
        left: 0;
        background: linear-gradient(90deg, var(--bg-start) 60%, transparent 100%);
    }

    .portfolio__list-wrapper::after {
        right: 0;
        background: linear-gradient(270deg, var(--bg-start) 60%, transparent 100%);
    }

    .portfolio__list-wrapper.scrolled-left::before {
        opacity: 0;
    }

    .portfolio__list-wrapper.scrolled-right::after {
        opacity: 0;
    }

    .portfolio__list::-webkit-scrollbar {
        display: none;
    }

    .portfolio-card {
        flex: 0 0 calc(90vw - 32px);
        min-width: calc(90vw - 32px);
        max-width: calc(90vw - 32px);
        padding: 24px 20px;
        border-radius: 24px;
        scroll-snap-align: center;
    }

    .portfolio-card h3 {
        font-size: 22px;
    }

    .portfolio-card p {
        font-size: 14px;
    }

    .portfolio-card__price {
        font-size: 15px;
        margin-top: 16px;
    }

    .portfolio-card.is-active {
        transform: none;
    }
}