:root {
    --poc-violet: #6d4aff;
    --poc-cyan: #1b9fd8;
    --poc-night: #11192c;
    --poc-paper: #f5f8fc;
}

.portfolio-hero {
    padding: 88px 0 72px;
    background:
        radial-gradient(circle at 82% 18%, rgba(109, 74, 255, 0.14), transparent 31%),
        linear-gradient(135deg, rgba(0, 111, 230, 0.09), rgba(25, 165, 107, 0.06)),
        var(--poc-paper);
}

.portfolio-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    gap: 64px;
    align-items: end;
}

.portfolio-kicker,
.poc-index,
.poc-status,
.poc-tags span {
    font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.portfolio-kicker {
    margin: 0 0 14px;
    color: var(--blue);
    font-size: 0.78rem;
    font-weight: 800;
}

.portfolio-hero h1 {
    max-width: 760px;
    margin: 0;
    font-size: clamp(2.7rem, 6vw, 5.25rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
}

.portfolio-intro {
    max-width: 700px;
    margin: 26px 0 0;
    color: var(--muted);
    font-size: 1.12rem;
}

.portfolio-register {
    margin: 0;
    padding: 0;
    list-style: none;
    border-top: 1px solid var(--line);
}

.portfolio-register li {
    display: grid;
    grid-template-columns: 44px 1fr auto;
    gap: 14px;
    align-items: center;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
}

.portfolio-register strong {
    font-size: 0.94rem;
}

.portfolio-register span {
    color: var(--muted);
    font-size: 0.78rem;
}

.portfolio-register .register-number {
    color: var(--blue);
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-weight: 800;
}

.portfolio-section {
    padding: 76px 0 94px;
}

.portfolio-heading {
    display: flex;
    justify-content: space-between;
    gap: 32px;
    align-items: end;
    margin-bottom: 34px;
}

.portfolio-heading h2 {
    max-width: 700px;
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.portfolio-heading p {
    max-width: 390px;
    margin: 0;
    color: var(--muted);
}

.poc-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 28px;
}

.poc-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: var(--white);
    box-shadow: 0 16px 42px rgba(18, 47, 84, 0.08);
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.poc-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 58px rgba(18, 47, 84, 0.14);
}

.poc-media {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #e9eef6;
    border-bottom: 1px solid var(--line);
}

.poc-media img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center top;
    transition: transform 500ms ease;
}

.poc-card:hover .poc-media > img {
    transform: scale(1.018);
}

.poc-media-mndt > img {
    object-position: 52% top;
}

.mndt-inset {
    position: absolute;
    right: 18px;
    bottom: 18px;
    width: 112px;
    height: auto;
    aspect-ratio: auto;
    padding: 6px;
    object-fit: contain;
    border: 1px solid rgba(23, 32, 51, 0.18);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 12px 30px rgba(17, 25, 44, 0.24);
}

.poc-card:hover .mndt-inset {
    transform: none;
}

.cognitive-visual {
    display: grid;
    place-items: center;
    color: #e8edff;
    background:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px),
        radial-gradient(circle at center, #253765 0, #151d37 42%, #0e1427 100%);
    background-size: 34px 34px, 34px 34px, auto;
}

.cognitive-core {
    position: relative;
    display: grid;
    width: min(74%, 380px);
    aspect-ratio: 1.7 / 1;
    place-items: center;
    border: 1px solid rgba(141, 169, 255, 0.42);
    border-radius: 14px;
    background: rgba(12, 19, 40, 0.78);
    box-shadow: 0 0 80px rgba(77, 110, 255, 0.23);
}

.cognitive-core::before,
.cognitive-core::after {
    content: "";
    position: absolute;
    left: 12%;
    right: 12%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(122, 158, 255, 0.8), transparent);
}

.cognitive-core::before { top: 28%; }
.cognitive-core::after { bottom: 28%; }

.cognitive-core strong {
    max-width: 230px;
    text-align: center;
    font-size: clamp(1.1rem, 2.5vw, 1.65rem);
    line-height: 1.12;
}

.cognitive-orbit {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #6ef0c2;
    box-shadow: 0 0 18px rgba(110, 240, 194, 0.9);
}

.cognitive-orbit:nth-child(2) { top: 16%; left: 9%; }
.cognitive-orbit:nth-child(3) { right: 9%; bottom: 16%; background: #8c73ff; }

.poc-body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 26px;
}

.poc-meta {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    align-items: center;
}

.poc-index {
    color: var(--muted);
    font-size: 0.72rem;
}

.poc-status {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: #087c55;
    font-size: 0.68rem;
    font-weight: 800;
}

.poc-status::before {
    content: "";
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #19a56b;
    box-shadow: 0 0 0 4px rgba(25, 165, 107, 0.12);
}

.poc-status.desktop {
    color: #765600;
}

.poc-status.desktop::before {
    background: #e3a916;
    box-shadow: 0 0 0 4px rgba(227, 169, 22, 0.13);
}

.poc-card h3 {
    margin: 18px 0 10px;
    font-size: clamp(1.45rem, 3vw, 2rem);
    line-height: 1.08;
    letter-spacing: -0.025em;
}

.poc-card p {
    margin: 0;
    color: var(--muted);
}

.poc-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 22px 0 24px;
}

.poc-tags span {
    padding: 5px 8px;
    border-radius: 6px;
    color: #43516a;
    background: #edf2f8;
    font-size: 0.64rem;
    font-weight: 700;
}

.poc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: auto;
}

.poc-link {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    border: 1px solid var(--ink);
    border-radius: 8px;
    color: var(--white);
    background: var(--ink);
    font-weight: 800;
    text-decoration: none;
}

.poc-link:hover {
    border-color: var(--blue);
    background: var(--blue);
}

.poc-link.secondary {
    color: var(--ink);
    background: transparent;
}

.poc-link.secondary:hover {
    color: var(--blue);
    background: rgba(0, 111, 230, 0.06);
}

.portfolio-cta {
    padding: 0 0 96px;
}

.portfolio-cta-inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 32px;
    align-items: center;
    padding: 42px;
    border-radius: 16px;
    color: var(--white);
    background: var(--poc-night);
}

.portfolio-cta h2 {
    margin: 0 0 8px;
    font-size: clamp(1.7rem, 3.5vw, 2.7rem);
    line-height: 1.08;
}

.portfolio-cta p {
    margin: 0;
    color: #b8c4dc;
}

.portfolio-cta .poc-link {
    border-color: var(--white);
    color: var(--ink);
    background: var(--white);
}

@media (max-width: 820px) {
    .portfolio-hero-grid,
    .poc-grid,
    .portfolio-cta-inner {
        grid-template-columns: 1fr;
    }

    .portfolio-hero {
        padding: 64px 0 56px;
    }

    .portfolio-heading {
        display: block;
    }

    .portfolio-heading p {
        margin-top: 14px;
    }

    .portfolio-cta .poc-link {
        justify-self: start;
    }
}

@media (max-width: 520px) {
    .portfolio-hero h1 {
        font-size: 2.65rem;
    }

    .portfolio-register li {
        grid-template-columns: 34px 1fr;
    }

    .portfolio-register li > span:last-child {
        display: none;
    }

    .portfolio-section {
        padding: 58px 0 72px;
    }

    .poc-body {
        padding: 21px;
    }

    .mndt-inset {
        right: 12px;
        bottom: 12px;
        width: 82px;
    }

    .portfolio-cta-inner {
        padding: 28px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .poc-card,
    .poc-media img {
        transition: none;
    }
}