/* ===========================
           Global Styles
           =========================== */
        :root {
            --primary-color: #2563eb;
            --secondary-color: #1e40af;
            --accent-color: #3b82f6;
            --dark-bg: #0f172a;
            --darker-bg: #020617;
            --text-light: #f1f5f9;
            --text-gray: #cbd5e1;
            --card-bg: #1e293b;
            --border-color: #334155;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', sans-serif;
            background-color: var(--darker-bg);
            color: var(--text-light);
            overflow-x: hidden;
        }

        html {
            scroll-behavior: smooth;
        }

     
        /* ===========================
           Hero Section
           =========================== */
.hero-section {
    position: relative;
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
    background-image: url('../images/ClientInConstruction.png');
    background-repeat: no-repeat;
    background-position: top right;
    background-size: contain;
    padding: 8rem 0 5rem;
    overflow: hidden;
}

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: 
                radial-gradient(circle at 30% 40%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 60%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
            animation: pulseGlow 8s ease-in-out infinite;
        }

        @keyframes pulseGlow {
            0%, 100% { opacity: 0.5; }
            50% { opacity: 1; }
        }

        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
        }

        .hero-title {
            font-size: 3.5rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            line-height: 1.1;
        }

        .hero-subtitle {
            font-size: 1.35rem;
            color: var(--text-gray);
            max-width: 800px;
            margin: 0 auto 2.5rem;
            line-height: 1.7;
        }

        /* ===========================
           Filter Section
           =========================== */
        .filter-section {
            padding: 3rem 0;
            background: var(--dark-bg);
            border-bottom: 1px solid var(--border-color);
        }

        .filter-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }

        .filter-btn {
            padding: 0.75rem 1.5rem;
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 50px;
            color: var(--text-gray);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .filter-btn:hover {
            border-color: var(--primary-color);
            color: var(--primary-color);
            transform: translateY(-2px);
        }

        .filter-btn.active {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-color: var(--primary-color);
            color: white;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
        }

        /* ===========================
           Case Studies Grid
           =========================== */
        .case-studies-section {
            padding: 5rem 0;
            background: var(--darker-bg);
        }

        .case-study-card {
            background: var(--card-bg);
            border-radius: 20px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all 0.4s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
            margin-bottom: 2rem;
        }

        .case-study-card:hover {
            transform: translateY(-10px);
            border-color: var(--primary-color);
            box-shadow: 0 20px 50px rgba(37, 99, 235, 0.3);
        }

        .case-image {
            width: 100%;
            height: 250px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            position: relative;
            overflow: hidden;
        }

        .case-image::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 20 0 L 0 0 0 20" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
            opacity: 0.3;
        }

        .case-image-placeholder {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            text-align: center;
            color: white;
        }

        .case-image-placeholder i {
            font-size: 4rem;
            margin-bottom: 1rem;
            opacity: 0.8;
        }

        .case-image-placeholder p {
            font-size: 1.1rem;
            font-weight: 600;
            opacity: 0.9;
        }

        .case-tags {
            position: absolute;
            top: 1rem;
            left: 1rem;
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
        }

        .case-tag {
            padding: 0.4rem 1rem;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary-color);
        }

        .case-content {
            padding: 2.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .case-client {
            font-size: 0.9rem;
            color: var(--primary-color);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 0.75rem;
        }

        .case-title {
            font-size: 1.8rem;
            color: var(--text-light);
            font-weight: 800;
            margin-bottom: 1rem;
            line-height: 1.3;
        }

        .case-description {
            color: var(--text-gray);
            line-height: 1.8;
            margin-bottom: 2rem;
            flex: 1;
        }

        .case-metrics {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1rem;
            margin-bottom: 2rem;
            padding-top: 2rem;
            border-top: 1px solid var(--border-color);
        }

        .metric {
            text-align: center;
        }

        .metric-value {
            font-size: 2rem;
            font-weight: 900;
            color: var(--primary-color);
            display: block;
            margin-bottom: 0.25rem;
        }

        .metric-label {
            font-size: 0.85rem;
            color: var(--text-gray);
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .case-cta {
            text-align: center;
        }

        .btn-view-case {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            background: transparent;
            border: 2px solid var(--primary-color);
            border-radius: 50px;
            color: var(--primary-color);
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .btn-view-case:hover {
            background: var(--primary-color);
            color: white;
            transform: translateX(5px);
        }

        /* ===========================
           Stats Banner
           =========================== */
        .stats-banner {
            padding: 5rem 0;
            background: var(--dark-bg);
        }

        .stat-item {
            text-align: center;
            padding: 2rem;
        }

        .stat-number {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
            display: block;
        }

        .stat-label {
            font-size: 1.1rem;
            color: var(--text-gray);
        }

        /* ===========================
           CTA Section
           =========================== */
        .cta-section {
            padding: 6rem 0;
            background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 100%);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(circle at 50% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
        }

        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .cta-title {
            font-size: 2.8rem;
            font-weight: 900;
            margin-bottom: 1.5rem;
            color: var(--text-light);
        }

        .cta-subtitle {
            font-size: 1.25rem;
            color: var(--text-gray);
            margin-bottom: 2.5rem;
            line-height: 1.7;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border: none;
            padding: 1rem 2.5rem;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
            color: white;
            text-decoration: none;
            display: inline-block;
            font-size: 1.05rem;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
            background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
            color: white;
        }

        /* ===========================
           Footer
           =========================== */
        .footer {
            padding: 3rem 0;
            background: var(--darker-bg);
            border-top: 1px solid var(--border-color);
            text-align: center;
        }

        .footer p {
            color: var(--text-gray);
            margin: 0;
        }

        /* ===========================
           Animations
           =========================== */
        .fade-in-up {
            opacity: 0;
            transform: translateY(30px);
            animation: fadeInUp 0.8s ease-out forwards;
        }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .delay-1 { animation-delay: 0.1s; }
        .delay-2 { animation-delay: 0.2s; }
        .delay-3 { animation-delay: 0.3s; }
        .delay-4 { animation-delay: 0.4s; }

        /* Filter Animation */
        .case-study-card.hidden {
            display: none;
        }

        /* ===========================
           Responsive Design
           =========================== */
        @media (max-width: 991px) {
            .hero-title {
                font-size: 2.5rem;
            }

            .case-metrics {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .filter-buttons {
                flex-direction: column;
                align-items: center;
            }

            .filter-btn {
                width: 100%;
                max-width: 300px;
            }
        }

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

            .case-content {
                padding: 1.5rem;
            }

            .case-title {
                font-size: 1.4rem;
            }

            .stat-number {
                font-size: 2.5rem;
            }

            .cta-title {
                font-size: 2rem;
            }
        }