.portfolio-page {
    min-height: calc(100vh - 220px);
    padding: 3rem 1.25rem 4rem;
    background: linear-gradient(160deg, #eef2f7 0%, #d8e0ec 100%);
}

.portfolio-shell {
    width: min(1080px, 100%);
    margin: 0 auto;
    background: #ffffff;
    border: 1px solid #d8dfec;
    border-radius: 18px;
    padding: clamp(1.5rem, 3vw, 2.75rem);
    box-shadow: 0 24px 48px rgba(19, 30, 49, 0.14);
}

.portfolio-shell .eyebrow {
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: #617394;
    font-weight: 700;
    margin-bottom: 0.45rem;
}

.portfolio-shell h1 {
    font-size: clamp(2rem, 5vw, 3.1rem);
    color: #0f1b33;
    margin-bottom: 0.7rem;
}

.portfolio-shell .lead {
    max-width: 70ch;
    color: #42536f;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.portfolio-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.portfolio-card {
    border: 1px solid #dbe3f1;
    border-radius: 14px;
    padding: 1.15rem;
    background: #f8fbff;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.portfolio-card-link:hover .portfolio-card,
.portfolio-card-link:focus-visible .portfolio-card {
    transform: translateY(-3px);
    border-color: #bfcde6;
    box-shadow: 0 12px 22px rgba(19, 30, 49, 0.12);
}

.portfolio-card h2 {
    font-size: 1.08rem;
    margin-bottom: 0;
    color: #1a2d4f;
}

.portfolio-image-wrap {
    width: 100%;
    aspect-ratio: 16 / 10;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid #d2dceb;
    background: #e9eff8;
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.portfolio-meta {
    display: grid;
    gap: 0.6rem;
    margin: 0;
}

.portfolio-meta div {
    border: 1px solid #dbe3f1;
    border-radius: 10px;
    padding: 0.6rem 0.7rem;
    background: #ffffff;
}

.portfolio-meta dt {
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #6a7b99;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.portfolio-meta dd {
    margin: 0;
    color: #1f355a;
    font-weight: 600;
}

.portfolio-open {
    margin-top: auto;
    display: inline-flex;
    align-self: flex-start;
    font-size: 0.85rem;
    font-weight: 700;
    color: #284a79;
}

.portfolio-detail-shell {
    max-width: 980px;
}

.portfolio-detail-card {
    border: 1px solid #dbe3f1;
    border-radius: 14px;
    background: #f8fbff;
    padding: 1.2rem;
}

.portfolio-detail-image-wrap {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #d2dceb;
    background: #e9eff8;
    margin-bottom: 1rem;
}

.portfolio-detail-image {
    width: 100%;
    max-height: 520px;
    object-fit: cover;
    display: block;
}

.portfolio-meta-detail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.portfolio-detail-actions {
    margin-top: 1rem;
}

.portfolio-back-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 1px solid #2a4d7f;
    color: #2a4d7f;
    text-decoration: none;
    font-weight: 700;
    padding: 0.5rem 1rem;
}

.portfolio-back-link:hover {
    background: #edf3fb;
}

@media (max-width: 900px) {
    .portfolio-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-meta-detail {
        grid-template-columns: 1fr;
    }
}