/* Controls and Filter Toggles */
.archive-controls {
    padding: 40px 20px 20px 20px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-light);
}

.filter-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    font-family: monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.2s var(--transition-smooth);
}

.filter-btn--active, .filter-btn:hover {
    background: var(--text-color);
    color: var(--bg-color);
}

.portfolio-card--interactive {
    cursor: pointer;
}

/* Side drawer overlay */
.drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    visibility: hidden;
    display: flex;
    justify-content: flex-end;
}

.drawer[aria-hidden="false"] {
    visibility: visible;
}

.drawer__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    transition: opacity 0.4s var(--transition-smooth);
}

.drawer[aria-hidden="false"] .drawer__overlay {
    opacity: 1;
}

.drawer__content {
    position: relative;
    width: 100%;
    max-width: 640px;
    height: 100%;
    background: var(--bg-color);
    box-shadow: -5px 0 30px rgba(0,0,0,0.05);
    padding: 40px 25px;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.4s var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.drawer[aria-hidden="false"] .drawer__content {
    transform: translateX(0);
}

.drawer__close {
    align-self: flex-start;
    background: none;
    border: none;
    font-family: monospace;
    font-size: 0.9rem;
    text-transform: uppercase;
    cursor: pointer;
    margin-bottom: 40px;
    padding: 4px 0;
    border-bottom: 1px dashed var(--text-color);
}

/* Case study internal layout */
.case-header {
    margin-bottom: 40px;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 20px;
}

.case-header__index {
    font-family: monospace;
    font-size: 0.9rem;
    color: #666;
    display: block;
    margin-bottom: 5px;
}

.case-header__title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 15px;
    line-height: 1.1;
}

.case-header__specs {
    font-family: monospace;
    font-size: 0.85rem;
    color: #333;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.case-section {
    margin-bottom: 45px;
}

.case-section__heading {
    font-family: monospace;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: #666;
    margin-bottom: 15px;
    letter-spacing: 0.5px;
}

.case-section__body {
    font-size: 1.05rem;
    line-height: 1.6;
    color: #222;
}

.case-media-container img, 
.case-media-container video {
    width: 100%;
    height: auto;
    display: block;
    border: 1px solid var(--border-light);
}

/* Process gallery grid */
.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.process-grid img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border: 1px solid var(--border-light);
}

@media (min-width: 768px) {
    .archive-controls { padding: 60px 50px 20px 50px; }
    .drawer__content { padding: 50px; }
}