/* ─── ANIMATIONS ─── */
        @keyframes fadeUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .nav-links .active-link { color: var(--accent) !important; }
        .nav-links .active-link::after { width: 100%; background: var(--accent); }

        /* ─── HERO ─── */
        .portfolio-hero {
            position: relative;
            height: 40vh;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: var(--bg-primary);
        }

        .portfolio-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background:
                radial-gradient(ellipse at 30% 50%, rgba(200, 164, 86, 0.06) 0%, transparent 60%),
                radial-gradient(ellipse at 70% 80%, rgba(200, 164, 86, 0.04) 0%, transparent 50%),
                linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
        }

        .portfolio-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--accent-dim), transparent);
        }

        .portfolio-hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 0 2rem;
        }

        .portfolio-hero h1 {
            font-family: var(--font-display);
            font-size: clamp(3rem, 8vw, 6rem);
            letter-spacing: 8px;
            line-height: 1;
            margin-bottom: 1rem;
            opacity: 0;
            animation: fadeUp 1s 0.2s forwards;
        }

        .portfolio-hero h1 span {
            color: var(--accent);
        }

        .portfolio-hero p {
            font-family: var(--font-serif);
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            font-style: italic;
            color: var(--text-secondary);
            opacity: 0;
            animation: fadeUp 1s 0.4s forwards;
        }

        /* ─── FILM STRIP DECORATIVE ─── */
        /* ─── FILTER BAR ─── */
        .filter-bar {
            position: sticky;
            top: 0;
            z-index: 900;
            background: rgba(10, 10, 10, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            padding: 1rem 2rem;
            display: flex;
            justify-content: center;
            gap: 0.75rem;
            flex-wrap: wrap;
            transition: top 0.5s ease;
        }

        .filter-bar.nav-visible {
            top: 60px;
        }

        .filter-btn {
            font-family: var(--font-display);
            font-size: 1rem;
            letter-spacing: 2px;
            padding: 0.5rem 1.5rem;
            background: transparent;
            color: var(--text-secondary);
            border: 1px solid var(--border);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .filter-btn:hover {
            color: var(--text-primary);
            border-color: var(--accent-dim);
        }

        .filter-btn.active {
            color: var(--accent);
            border-color: var(--accent);
            background: rgba(200, 164, 86, 0.08);
        }

        /* ─── PORTFOLIO GRID ─── */
        .portfolio-section {
            padding: 4rem 2rem 6rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .portfolio-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2rem;
        }

        .video-card {
            background: var(--bg-card);
            border: 1px solid var(--border);
            overflow: hidden;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .video-card:hover {
            border-color: var(--accent-dim);
            transform: translateY(-4px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px rgba(200, 164, 86, 0.05);
        }

        .video-card.hidden {
            display: none;
        }

        .video-thumb {
            position: relative;
            padding-bottom: 56.25%;
            overflow: hidden;
        }

        .video-thumb img {
            position: absolute;
            top: 0; left: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .video-card:hover .video-thumb img {
            transform: scale(1.05);
        }

        /* Dark teal-orange color grade overlay */
        .video-thumb::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(
                135deg,
                rgba(20, 60, 70, 0.35) 0%,
                rgba(10, 10, 10, 0.25) 50%,
                rgba(180, 100, 40, 0.2) 100%
            );
            z-index: 1;
            transition: opacity 0.4s ease;
        }

        .video-card:hover .video-thumb::before {
            opacity: 0.15;
        }

        /* Dark gradient at bottom */
        .video-thumb::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 60%;
            background: linear-gradient(to top, rgba(10,10,10,0.7) 0%, transparent 100%);
            z-index: 1;
        }

        /* Play button overlay */
        .play-overlay {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2;
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .video-card:hover .play-overlay {
            opacity: 1;
        }

        .play-btn {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            border: 2px solid rgba(200, 164, 86, 0.8);
            background: rgba(200, 164, 86, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(4px);
            transition: all 0.3s ease;
        }

        .play-btn svg {
            width: 24px;
            height: 24px;
            fill: var(--accent);
            margin-left: 3px;
        }

        .video-card:hover .play-btn {
            background: rgba(200, 164, 86, 0.25);
            transform: scale(1.1);
        }

        .video-info {
            padding: 1.25rem 1.5rem 1.5rem;
        }

        .video-category-tag {
            display: inline-block;
            font-size: 0.65rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            border: 1px solid var(--accent-dim);
            padding: 0.2rem 0.6rem;
            margin-bottom: 0.6rem;
        }

        .video-title {
            font-family: var(--font-display);
            font-size: 1.3rem;
            letter-spacing: 1px;
            line-height: 1.2;
            margin-bottom: 0.4rem;
            color: var(--text-primary);
        }

        .video-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }

        .case-study-link {
            display: inline-block;
            margin-top: 0.5rem;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--accent);
            transition: all 0.3s;
            text-decoration: none;
        }

        .case-study-link:hover {
            color: var(--accent-bright);
            letter-spacing: 3px;
        }

        /* Staggered reveal delays */
        .portfolio-grid .reveal:nth-child(3n+2) { transition-delay: 0.1s; }
        .portfolio-grid .reveal:nth-child(3n+3) { transition-delay: 0.2s; }

        /* ─── VIDEO MODAL ─── */
        .video-modal {
            display: none;
            position: fixed;
            inset: 0;
            z-index: 10000;
            background: rgba(0,0,0,0.92);
            backdrop-filter: blur(10px);
            align-items: center;
            justify-content: center;
            padding: 2rem;
        }

        .video-modal.active { display: flex; }

        .video-modal-inner {
            width: 100%;
            max-width: 960px;
            position: relative;
        }

        .video-modal-inner .video-wrapper {
            position: relative;
            padding-bottom: 56.25%;
        }

        .video-modal-inner iframe {
            position: absolute;
            top: 0; left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }

        .modal-close {
            position: absolute;
            top: -50px;
            right: 0;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 2rem;
            cursor: pointer;
            font-family: var(--font-display);
            letter-spacing: 2px;
            transition: color 0.3s;
        }

        .modal-close:hover { color: var(--accent); }

        /* ─── RESPONSIVE ─── */
        @media (max-width: 1024px) {
            .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
            .portfolio-section { padding: 3rem 2rem 5rem; }
            .portfolio-grid .reveal:nth-child(2n+2) { transition-delay: 0.1s; }
            .portfolio-grid .reveal:nth-child(2n+1) { transition-delay: 0s; }
        }

        @media (max-width: 768px) {
            .portfolio-grid { grid-template-columns: 1fr; }
            .portfolio-section { padding: 2rem 1.25rem 4rem; }
            .filter-bar { padding: 0.75rem 1rem; gap: 0.5rem; }
            .filter-btn { font-size: 0.85rem; padding: 0.4rem 1rem; }
            .portfolio-hero h1 { letter-spacing: 4px; }
            .portfolio-hero { min-height: 260px; }

            .filter-bar.nav-visible {
                top: 52px;
            }
        }

        @media (max-width: 480px) {
            .filter-btn { font-size: 0.75rem; padding: 0.35rem 0.75rem; letter-spacing: 1px; }
        }