/* ─── grid structure ─────────────────────────────────────────────────────── */
.GridContainer {
    display: grid;
    grid-template-rows: auto auto auto;
    background-color: var(--bg-0);
    width: 100vw;
}

.GridItem {
    color: var(--white);
}

/* ─── row 0 — bio ────────────────────────────────────────────────────────── */
.BioRow {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 90vh;
}

#bio_left {
    position: relative;
    overflow: hidden;
    background-color: var(--bg-2);
}

.bio-bg-image {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
    opacity: 0.25;
    object-fit: cover;
}

#bio_text {
    position: relative;
    z-index: 2;
    padding: 60px 60px 60px 100px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

#bio_text h1 {
    color: var(--blue);
    margin-bottom: 0;
}

p.bio-title {
    font-size: 13pt;
    color: rgba(255, 255, 255, 0.75);
    font-style: italic;
    letter-spacing: -0.5px;
    margin-top: -12px;
}

#bio_right {
    background-color: var(--bg-1);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

#zach_photo {
    width: auto;
    height: 70%;
    max-height: 600px;
    object-fit: cover;
    object-position: center top;
}

/* ─── row 1 — publications ───────────────────────────────────────────────── */
.PublicationsRow {
    position: relative;
    background-color: var(--bg-0);
    display: flex;
    justify-content: center;
    overflow: hidden;
}

.publications-bg-image {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    opacity: 0.2;
    object-fit: cover;
}

#publications_content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 900px;
    padding: 60px 40px;
}

#publications_content h1 {
    color: var(--blue);
    margin-bottom: 40px;
}

#publications_list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

#publications_list li {
    font-size: 13pt;
    font-weight: 400;
    letter-spacing: -0.5px;
    line-height: 1.6;
    padding-left: 20px;
    border-left: 2px solid var(--blue);
}

/* ─── row 2 — capabilities ───────────────────────────────────────────────── */
.CapabilitiesRow {
    position: relative;
    background-color: var(--bg-1);
    overflow: hidden;
}

.capabilities-bg-image {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0;
    opacity: 0.25;
    object-fit: cover;
}

#capabilities_content {
    position: relative;
    z-index: 1;
    padding: 60px 80px;
}

#capabilities_content h1 {
    color: var(--blue);
}

#capabilities_header {
    display: flex;
    align-items: center;
    gap: 48px;
    margin-bottom: 56px;
}

#capabilities_grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

.capability-col h3 {
    font-size: 18pt;
    margin-bottom: 42px;
}

.capability-col h3 + h3 {
    margin-top: 48px;
}

.capability-col ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.capability-col ul li {
    font-size: 13pt;
    font-weight: 400;
    letter-spacing: -0.5px;
    line-height: 1.5;
    color: var(--white);
}

/* ─── row 3 — certifications and NAICS ──────────────────────────────────── */
.CertificationsRow {
    background-color: var(--bg-2);
}

#certifications_content {
    padding: 48px 80px;
}

#certifications_grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}

/* ─── responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .BioRow {
        grid-template-columns: 1fr;
    }

    #bio_right {
        min-height: 50vw;
    }

    #capabilities_grid {
        grid-template-columns: 1fr;
    }

    #capabilities_header {
        flex-direction: column;
        align-items: flex-start;
        gap: 24px;
    }

    #certifications_grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    #bio_text {
        padding: 40px 30px;
    }

    #capabilities_content {
        padding: 40px 30px;
    }

    #certifications_content {
        padding: 40px 30px;
    }

    #capabilities_header .GreenButton {
        width: 100%;
        text-align: center;
    }
}