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

        body {
            font-family: 'Cairo', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            background: #000000;
            min-height: 100vh;
            padding: 40px 20px;
            overflow-x: hidden;
            position: relative;
        }

        .stars {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 0;
        }

        .star {
            position: absolute;
            background: white;
            border-radius: 50%;
            animation: twinkle 3s infinite;
        }

        @keyframes twinkle {
            0%, 100% { opacity: 0.3; }
            50% { opacity: 1; }
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-20px); }
        }

        .galaxy {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: 
                radial-gradient(ellipse at 20% 30%, rgba(138, 43, 226, 0.15) 0%, transparent 50%),
                radial-gradient(ellipse at 80% 70%, rgba(36, 60, 148, 0.2) 0%, transparent 50%),
                radial-gradient(ellipse at 50% 50%, rgba(255, 215, 0, 0.05) 0%, transparent 50%);
            pointer-events: none;
            z-index: 0;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            position: relative;
            z-index: 1;
        }

        .tree-container {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 60px;
        }
.root-node {
    position: relative;
    padding: 52px 88px;
    font-size: 56px;
    font-weight: 900;
    letter-spacing: 1.5px;
    text-transform: uppercase;

    background:
        radial-gradient(circle at top, rgba(255,198,120,0.18), transparent 65%),
        linear-gradient(135deg, #0b1028, #1f2f6b, #0b1028);

    color: #f2d7a1; /* soft champagne */

    border-radius: 28px;

    box-shadow:
        0 0 35px rgba(255,198,120,0.25),
        0 0 90px rgba(36, 60, 148, 0.55),
        inset 0 0 30px rgba(255,198,120,0.15);

    border: 1.5px solid rgba(255,198,120,0.45);

    cursor: pointer;
    overflow: hidden;

    animation: float 7s ease-in-out infinite;
    transition: all 0.45s ease;
}


/* ✨ Animated glow ring */
.root-node::before {
    content: "";
    position: absolute;
    inset: -6px;
    border-radius: inherit;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(255,198,120,0.5),
        rgba(65,105,225,0.45),
        rgba(255,198,120,0.5),
        transparent
    );
    filter: blur(26px);
    opacity: 0.45;
    animation: rotateGlow 14s linear infinite;
}


/* 🌌 Inner shine */
.root-node::after {
    content: "";
    position: absolute;
    inset: 4px;
    border-radius: inherit;
    background: radial-gradient(
        circle at top,
        rgba(255,255,255,0.12),
        transparent 75%
    );
    pointer-events: none;
}

/* 🚀 Hover magic */
.root-node:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow:
        0 0 55px rgba(255,198,120,0.35),
        0 0 120px rgba(36, 60, 148, 0.8),
        inset 0 0 40px rgba(255,198,120,0.25);
}


/* 🔄 Glow animation */
@keyframes rotateGlow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}


        .vertical-line {
            width: 4px;
            height: 70px;
            background: linear-gradient(180deg, 
                rgba(255, 215, 0, 0.8), 
                rgba(255, 215, 0, 0.4),
                rgba(255, 215, 0, 0.8));
            margin-bottom: 30px;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
            position: relative;
        }

        .branches {
            display: flex;
            gap: 120px;
            position: relative;
        }

        .branch {
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .branch-line {
            width: 4px;
            height: 50px;
            background: linear-gradient(180deg, 
                rgba(255, 215, 0, 0.4),
                rgba(255, 215, 0, 0.8));
            margin-bottom: 25px;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
        }

        .company-node {
            background: rgba(10, 10, 30, 0.85);
            backdrop-filter: blur(10px);
            padding: 40px 50px;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.6);
            cursor: pointer;
            transition: all 0.4s ease;
            min-width: 350px;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .company-node::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border-radius: 20px;
            padding: 2px;
            background: linear-gradient(135deg, transparent, rgba(255, 215, 0, 0.3), transparent);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .company-node:hover::before {
            opacity: 1;
        }

        .company-node:hover {
            transform: translateY(-10px);
            box-shadow: 0 30px 80px rgba(0,0,0,0.8);
        }

        .company-node.experts {
            border-top: 4px solid #FFD700;
            box-shadow: 
                0 20px 60px rgba(0,0,0,0.6),
                0 0 40px rgba(255, 215, 0, 0.2);
        }

        .company-node.experts:hover {
            box-shadow: 
                0 30px 80px rgba(0,0,0,0.8),
                0 0 60px rgba(255, 215, 0, 0.4);
        }

        .company-node.recovery {
            border-top: 4px solid #243c94;
            box-shadow: 
                0 20px 60px rgba(0,0,0,0.6),
                0 0 40px rgba(36, 60, 148, 0.2);
        }

        .company-node.recovery:hover {
            box-shadow: 
                0 30px 80px rgba(0,0,0,0.8),
                0 0 60px rgba(36, 60, 148, 0.4);
        }

        .company-name {
            font-size: 36px;
            font-weight: bold;
            margin-bottom: 15px;
            background: linear-gradient(135deg, #FFD700, #FFA500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .company-node.recovery .company-name {
            background: linear-gradient(135deg, #4169E1, #1E90FF);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .company-desc {
            color: rgba(255, 255, 255, 0.8);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 25px;
        }

        .services {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .service-tag {
            background: linear-gradient(135deg, rgba(36, 60, 148, 0.4), rgba(36, 60, 148, 0.6));
            color: #FFD700;
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
            border: 1px solid rgba(255, 215, 0, 0.3);
            box-shadow: 0 4px 15px rgba(36, 60, 148, 0.3);
            transition: all 0.3s ease;
        }

        .service-tag:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(36, 60, 148, 0.5);
        }

        .projects-section {
            background: rgba(10, 10, 30, 0.85);
            backdrop-filter: blur(15px);
            padding: 50px;
            border-radius: 30px;
            box-shadow: 
                0 20px 60px rgba(0,0,0,0.6),
                inset 0 0 60px rgba(36, 60, 148, 0.05);
            border: 2px solid rgba(255, 215, 0, 0.2);
        }

        .section-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 40px;
            flex-wrap: wrap;
            gap: 25px;
        }

        .section-title {
            font-size: 42px;
            font-weight: bold;
            background: linear-gradient(135deg, #FFD700, #FFA500);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            text-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
        }

        .filters-container {
            display: flex;
            flex-direction: column;
            gap: 15px;
            width: 100%;
        }

        .filter-row {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            align-items: center;
        }

        .filter-label {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            min-width: 120px;
        }

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

        .filter-btn {
            padding: 12px 24px;
            border: 2px solid rgba(255, 215, 0, 0.3);
            background: rgba(36, 60, 148, 0.2);
            backdrop-filter: blur(10px);
            border-radius: 25px;
            cursor: pointer;
            transition: all 0.3s ease;
            font-weight: 600;
            color: rgba(255, 255, 255, 0.7);
            position: relative;
            overflow: hidden;
        }

        .filter-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.2);
            transform: translate(-50%, -50%);
            transition: width 0.4s, height 0.4s;
        }

        .filter-btn:hover::before {
            width: 300px;
            height: 300px;
        }

        .filter-btn:hover {
            border-color: #FFD700;
            color: #FFD700;
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.3);
            transform: translateY(-2px);
        }

        .filter-btn.active {
            background: linear-gradient(135deg, #243c94, #1a2d70);
            border-color: #FFD700;
            color: #FFD700;
            box-shadow: 
                0 0 30px rgba(255, 215, 0, 0.4),
                0 8px 20px rgba(36, 60, 148, 0.4);
        }

        .filter-btn.disabled {
            opacity: 0.3;
            cursor: not-allowed;
            pointer-events: none;
        }

        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
            gap: 35px;
            margin-top: 40px;
        }

        .project-card {
            background: rgba(15, 15, 40, 0.9);
            backdrop-filter: blur(10px);
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 15px 40px rgba(0,0,0,0.5);
            transition: all 0.4s ease;
            cursor: pointer;
            border: 2px solid rgba(255, 215, 0, 0.1);
            position: relative;
        }

        .project-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            border-radius: 20px;
            padding: 2px;
            background: linear-gradient(135deg, rgba(255, 215, 0, 0.3), rgba(36, 60, 148, 0.3));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .project-card:hover::before {
            opacity: 1;
        }

        .project-card:hover {
            transform: translateY(-15px);
            box-shadow: 
                0 25px 60px rgba(0,0,0,0.7),
                0 0 40px rgba(255, 215, 0, 0.2);
        }

        .project-image {
            width: 100%;
            height: 280px;
            object-fit: cover;
            background: linear-gradient(135deg, #243c94, #1a2d70);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #FFD700;
            font-size: 26px;
            font-weight: bold;
            text-shadow: 0 0 20px rgba(255, 215, 0, 0.5);
            position: relative;
            overflow: hidden;
        }

        .project-image::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
            animation: rotate 10s linear infinite;
        }

        @keyframes rotate {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .project-content {
            padding: 30px;
        }

        .project-title {
            font-size: 24px;
            font-weight: bold;
            color: #FFD700;
            margin-bottom: 12px;
            text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
        }

        .project-desc {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .project-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-top: 20px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 215, 0, 0.2);
        }

        .project-category {
            background: linear-gradient(135deg, rgba(36, 60, 148, 0.6), rgba(36, 60, 148, 0.8));
            color: #FFD700;
            padding: 6px 14px;
            border-radius: 15px;
            font-size: 12px;
            font-weight: 700;
            border: 1px solid rgba(255, 215, 0, 0.3);
            box-shadow: 0 4px 15px rgba(36, 60, 148, 0.3);
        }

        .project-link {
            color: #FFD700;
            text-decoration: none;
            font-weight: 700;
            font-size: 14px;
            transition: all 0.3s ease;
            text-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
        }

        .project-link:hover {
            color: #FFA500;
            text-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
        }

        .horizontal-line {
            position: absolute;
            top: -25px;
            height: 4px;
            background: linear-gradient(90deg, 
                rgba(255, 215, 0, 0.2), 
                rgba(255, 215, 0, 0.8), 
                rgba(255, 215, 0, 0.2));
            width: calc(100% + 120px);
            left: 50%;
            transform: translateX(-50%);
            box-shadow: 0 0 20px rgba(255, 215, 0, 0.6);
        }

        .company-badge {
            display: inline-block;
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: bold;
            margin-bottom: 15px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .company-badge.experts {
            background: linear-gradient(135deg, #FFD700, #FFA500);
            color: #08040c;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.4);
        }

        .company-badge.recovery {
            background: linear-gradient(135deg, #243c94, #1a2d70);
            color: #FFD700;
            box-shadow: 0 4px 15px rgba(36, 60, 148, 0.4);
        }

        @media (max-width: 768px) {
            .branches {
                flex-direction: column;
                gap: 50px;
            }

            .root-node {
                font-size: 36px;
                padding: 35px 50px;
            }

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

            .section-title {
                font-size: 32px;
            }

            .filter-label {
                min-width: 100%;
            }
        }