:root {
    --brand-dark: #0f172a;
    --brand-blue: #0077b6;
    --brand-cyan: #00b4d8;
    --text-dark: #1e293b;
    --text-muted: #64748b;
    --bg-light: #f8fafc;
    --surface: #ffffff;
    --transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.portfolio-hero {
    padding: 100px 40px 60px 40px;
    background: linear-gradient(180deg, rgba(244,247,249,0.5) 0%, rgba(255,255,255,0) 100%);
    text-align: center;
}

.hero-context {
    max-width: 800px;
    margin: 0 auto;
}

.overhead-tag {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--brand-blue);
    display: block;
    margin-bottom: 16px;
}

.portfolio-hero h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 52px;
    letter-spacing: 1px;
    color: var(--brand-dark);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.lead-text {
    font-size: 16px;
    color: var(--text-muted);
    line-height: 1.7;
}

.filter-wrapper {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.filter-pill {
    background: var(--surface);
    color: var(--text-dark);
    border: 1px solid rgba(0,0,0,0.08);
    padding: 10px 22px;
    font-size: 13px;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 2px 6px rgba(0,0,0,0.02);
}

.filter-pill:hover {
    border-color: var(--brand-blue);
    color: var(--brand-blue);
    transform: translateY(-1px);
}

.filter-pill.active {
    background: var(--brand-dark);
    color: var(--surface);
    border-color: var(--brand-dark);
    box-shadow: 0 4px 12px rgba(15,23,42,0.15);
}

.portfolio-stream {
    max-width: 1200px;
    margin: 0 auto 100px auto;
}

.project-row {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 80px;
    align-items: center;
    padding: 80px 40px;
    margin: 0;
    position: relative;
}

.project-row:nth-child(even) {
    background-color: #f8fafc;
    border-top: 1px solid rgba(0, 0, 0, 0.02);
    border-bottom: 1px solid rgba(0, 0, 0, 0.02);
}

.project-row:not(:first-child)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    width: 80%;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(0, 0, 0, 0.06), transparent);
}

.project-row:nth-child(even) .project-details {
    order: 2;
}
.project-row:nth-child(even) .project-gallery {
    order: 1;
}

.project-details {
    max-width: 440px;
}

.sector-badge {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--brand-cyan);
    letter-spacing: 1.5px;
    display: inline-block;
    margin-bottom: 12px;
}

.project-details h2 {
    font-size: 26px;
    color: var(--brand-dark);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
}

.project-details h2::after {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: var(--brand-blue);
    margin-left: 8px;
    vertical-align: middle;
    border-radius: 1px;
}

.project-description {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.65;
}

.project-gallery {
    display: grid;
    gap: 16px;
}

.project-gallery.count-1 { grid-template-columns: 1fr; }
.project-gallery.count-2 { grid-template-columns: 1fr 1fr; }
.project-gallery.count-3 { grid-template-columns: 1fr 1fr; grid-template-rows: 140px 140px; }

.project-gallery.count-3 .media-card:first-child {
    grid-row: span 2;
    height: 296px;
}

.media-card {
    position: relative;
    background: var(--bg-light);
    border-radius: 6px;
    overflow: hidden;
    cursor: pointer;
    height: 100%;
    min-height: 140px;
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.media-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 119, 182, 0.08);
    border-color: rgba(0, 119, 182, 0.15);
}

.media-card img, .media-card video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.type-video .video-overlay {
    position: absolute;
    inset: 0;
    background: rgba(15,23,42,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    transition: background 0.3s ease;
}
.type-video:hover .video-overlay {
    background: rgba(0, 119, 182, 0.4);
}

.empty-state {
    text-align: center;
    padding: 100px 40px;
    color: var(--text-muted);
}
.empty-state i {
    font-size: 40px;
    color: rgba(0,0,0,0.15);
    margin-bottom: 16px;
}

.media-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.media-lightbox.visible {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-content {
    max-width: 85vw;
    max-height: 85vh;
}

.lightbox-content img, .lightbox-content video {
    max-width: 100%;
    max-height: 85vh;
    border-radius: 6px;
    box-shadow: 0 40px 80px rgba(0,0,0,0.12);
}

.close-lightbox {
    position: absolute;
    top: 30px;
    right: 40px;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--brand-dark);
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.2s;
}
.close-lightbox:hover {
    opacity: 1;
}

@media (max-width: 900px) {
    .project-row {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 60px 30px;
    }
    .project-row:nth-child(even) .project-details { order: 1; }
    .project-row:nth-child(even) .project-gallery { order: 2; }
    .project-details { max-width: 100%; }
}

@media (max-width: 600px) {
    .portfolio-hero { padding: 80px 20px 40px 20px; }
    .portfolio-hero h1 { font-size: 38px; }
    .project-gallery.count-3 { grid-template-rows: 110px 110px; }
    .project-gallery.count-3 .media-card:first-child { height: 236px; }
    .project-row { padding: 50px 20px; }
}