/* Main Container */
        .portfolio-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        /* Page Header */
        .page-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .page-header h1 {
            font-size: 3rem;
            color: #2d3748;
            margin-bottom: 12px;
            font-weight: 700;
        }

        .page-header p {
            font-size: 1.2rem;
            color: #718096;
            max-width: 600px;
            margin: 0 auto;
        }

        /* Filter Section */
        .filter-container {
            background: white;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            margin-bottom: 40px;
            text-align: center;
        }

        .filter-label {
            font-size: 1.1rem;
            color: #4a5568;
            margin-bottom: 20px;
            font-weight: 600;
        }

        .filter-buttons {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
        }

        .filter-btn {
            padding: 10px 24px;
            background: #e2e8f0;
            border: 2px solid transparent;
            border-radius: 25px;
            color: #4a5568;
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .filter-btn:hover {
            background: #cbd5e0;
            transform: translateY(-2px);
        }

        .filter-btn.active {
            background: #14b8a6;
            color: white;
            border-color: #14b8a6;
        }

        /* Projects Grid */
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        /* Project Card */
        .project-card {
            background: linear-gradient(135deg, #f5fefe, #ebffff);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

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

        .project-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .project-image {
            width: 100%;
            height: 220px;
            background: linear-gradient(135deg, #f97316 0%, #14b8a6 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 3rem;
            position: relative;
            overflow: hidden;
        }

        .project-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .project-content {
            padding: 24px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .project-title {
            font-size: 1.5rem;
            color: #2d3748;
            margin-bottom: 10px;
            font-weight: 700;
        }

        .project-category {
            display: inline-block;
            padding: 4px 12px;
            background: #ccfbf1;
            color: #0f766e;
            border-radius: 15px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 12px;
        }

        .project-description {
            color: #718096;
            margin-bottom: 16px;
            line-height: 1.7;
            flex-grow: 1;
        }

        .project-tech {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 16px;
        }

        .tech-tag {
            padding: 4px 10px;
            background: #f7fafc;
            border: 1px solid #e2e8f0;
            border-radius: 5px;
            font-size: 0.8rem;
            color: #4a5568;
        }

        .project-links {
            display: flex;
            gap: 12px;
            margin-top: auto;
        }

        .project-link {
            flex: 1;
            padding: 10px 20px;
            text-align: center;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .link-demo {
            background: #14b8a6;
            color: white;
        }

        .link-demo:hover {
            transform: scale(1.05);
            box-shadow: 0 4px 12px rgba(20, 184, 166, 0.4);
            background: #0d9488;
        }

        .link-code {
            background: white;
            color: #14b8a6;
            border: 2px solid #14b8a6;
        }

        .link-code:hover {
            background: #14b8a6;
            color: white;
        }

        /* Results Count */
        .results-info {
            text-align: center;
            margin-bottom: 30px;
            color: #718096;
            font-size: 1.1rem;
        }

        .results-count {
            font-weight: 700;
            color: #f97316;
        }

        /* No Results Message */
        .no-results {
            text-align: center;
            padding: 60px 20px;
            display: none;
        }

        .no-results.show {
            display: block;
        }

        .no-results h3 {
            font-size: 1.8rem;
            color: #4a5568;
            margin-bottom: 12px;
        }

        .no-results p {
            color: #718096;
            font-size: 1.1rem;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .page-header h1 {
                font-size: 2rem;
            }

            .page-header p {
                font-size: 1rem;
            }

            .projects-grid {
                grid-template-columns: 1fr;
            }

            .filter-buttons {
                flex-direction: column;
            }

            .filter-btn {
                width: 100%;
            }
        }