.container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 20px;
            top: -520px;
        }

        /* Header */
        .header {
            text-align: center;
            padding: 60px 20px;
        }

        .header h1 {
            font-size: 3rem;
            font-weight: bold;
            margin-bottom: 20px;
        }

        .header p {
            color: #9ca3af;
            font-size: 1rem;
            max-width: 800px;
            margin: 0 auto;
        }

        /* Tabs */
        .tabs {
            display: flex;
            justify-content: center;
            gap: 15px;
            margin-bottom: 50px;
            flex-wrap: wrap;
            padding: 0 20px;
        }

        .instruments-section {
            position: relative;
            top: 10px;
        }

        .tab-btn {
            padding: 12px 24px;
            border: none;
            border-radius: 15px;
            font-size: 1rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            background-color: #18181b;
            color: #ffffff;
        }

        .tab-btn:hover {
            background-color: #27272a;
        }

        .tab-btn.active {
            background-color: #ffffff;
            color: #000000;
        }

        /* Grid */
        .instruments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            padding-bottom: 60px;
        }

        @media (min-width: 768px) {
            .instruments-grid {
                grid-template-columns: repeat(4, 1fr);
                gap: 25px;
            }
                         .instruments-section {
            position: relative;
            top: -600px;
        }
        }

        /* Card */
        .instrument-card {
            background-color: #18181b;
            border-radius: 15px;
            padding: 20px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .instrument-card:hover {
            background-color: #27272a;
            transform: translateY(-5px);
        }

        .card-icons {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin-bottom: 15px;
        }

        .icon-circle {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: #27272a;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        @media (min-width: 768px) {
            .icon-circle {
                width: 55px;
                height: 55px;
            }
        }

        .icon-circle img {
            width: 70%;
            height: 70%;
            object-fit: contain;
        }

        .card-name {
            text-align: center;
            font-size: 1rem;
            font-weight: bold;
            transition: color 0.3s ease;
        }

        @media (min-width: 768px) {
            .card-name {
                font-size: 1.2rem;
            }
        }

        .instrument-card:hover .card-name {
            color: #60a5fa;
        }

        .no-results {
            text-align: center;
            color: #9ca3af;
            padding: 80px 20px;
            font-weight: bold;
            font-size: 1.2rem;
        }

        .hidden {
            display: none;
        }

        @media (max-width: 767px) {
            .header h1 {
                font-size: 2rem;
            }

            .header p {
                font-size: 0.9rem;
            }

            .tab-btn {
                font-size: 0.85rem;
                padding: 10px 18px;
            }

            .card-name {
                font-size: 0.85rem;
            }

            .icon-circle {
                width: 35px;
                height: 35px;
            }
        }