.portfolio-hero, .case-hero { height: 100vh; display: flex; align-items: center; position: relative; overflow: hidden; }
.portfolio-subtitle, .case-subtitle { max-width: 480px; font-size: 1.05rem; line-height: 1.8; color: var(--grey); margin-top: 35px; font-weight: 300; }

/* --- EDITORIAL CATEGORY FILTER --- */
.filter-section { padding: 30px 0; }

/* Dynamic top/bottom padding to preserve left/right container boundaries */
.filter-container-row { 
    align-items: center; 
    border-bottom: 1px solid var(--hairline); 
    margin-bottom: 80px; 
    padding-top: 30px; 
    padding-bottom: 30px; 
}
.filter-wrapper { display: flex; justify-content: flex-start; gap: 20px; }

.filter-btn, .view-btn {
    font-size: 0.65rem; font-weight: 700; letter-spacing: 3px; cursor: pointer; color: var(--grey); padding: 12px 24px; border: 1px solid var(--hairline); transition: var(--transition); user-select: none;
}
.filter-btn:hover, .view-btn:hover { color: var(--white); border-color: rgba(255,255,255,0.3); }
.filter-btn.active, .view-btn.active { background-color: var(--white); color: var(--black); border-color: var(--white); font-weight: 900; }

.grid-layout-switcher { display: flex; gap: 20px; }

/* --- THE UNIFORM PORTFOLIO GRID --- */
.exhibition-section { padding-bottom: 180px; }
.exhibition-grid { display: grid; gap: 80px 40px; transition: grid-template-columns 0.6s cubic-bezier(0.25, 1, 0.5, 1); }
.exhibition-grid.grid-2-col { grid-template-columns: repeat(2, 1fr); }
.exhibition-grid.grid-3-col { grid-template-columns: repeat(3, 1fr); }

/* Clickable cards */
a.ex-card { text-decoration: none; color: inherit; cursor: pointer; display: flex; flex-direction: column; align-items: flex-start; width: 100%; transition: var(--transition); }
.ex-image { width: 100%; aspect-ratio: 16/11; overflow: hidden; border: 1px solid var(--hairline); background-color: var(--black); margin-bottom: 25px; }
.ex-image img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); transition: var(--transition); }
a.ex-card:hover .ex-image img { filter: grayscale(0%); transform: scale(1.02); }

.ex-meta { display: flex; gap: 20px; align-items: flex-start; }
.ex-num { font-family: 'Playfair Display', serif; font-style: italic; font-size: 1.25rem; color: var(--grey); line-height: 1; }
.ex-title-wrap h3 { font-size: 0.9rem; font-weight: 900; letter-spacing: 1px; margin-bottom: 5px; line-height: 1.2; }
.ex-title-wrap p { font-size: 0.85rem; color: var(--grey); }

/* --- CASE STUDY EXCLUSIVE CLASSES --- */
.case-meta-section { padding: 80px 0; }
.case-meta-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.meta-box { border-left: 1px solid var(--hairline); padding-left: 25px; }
.meta-label { font-size: 0.6rem; letter-spacing: 3px; color: var(--grey); text-transform: uppercase; display: block; margin-bottom: 10px; font-weight: 700; }
.meta-box p { font-size: 0.95rem; font-weight: 300; }

.case-narrative-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.narrative-left h3 { font-size: 2rem; font-weight: 700; line-height: 1.2; margin-top: 20px; }
.large-narrative { font-size: 1.4rem; line-height: 1.5; font-weight: 300; margin-bottom: 35px; color: var(--white); }
.sub-narrative { font-size: 0.95rem; line-height: 1.8; color: var(--grey); font-weight: 300; }

/* Asymmetric Case Study Gallery Grid */
.case-gallery-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-top: 60px; }
.gallery-item { width: 100%; transition: var(--transition); }
.gallery-item.full-width { grid-column: span 2; }
.gallery-item.tall-frame .gallery-frame { aspect-ratio: 4/5; }
.gallery-frame { width: 100%; aspect-ratio: 16/9; overflow: hidden; border: 1px solid var(--hairline); background-color: var(--black); }
.gallery-frame img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); transition: var(--transition); }
.gallery-item:hover .gallery-frame img { filter: grayscale(0%); transform: scale(1.02); }