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

        :root {
            --primary: #0077b6;
            --primary-dark: #005a8d;
            --secondary: #00b4d8;
            --accent: #48cae4;
            --bg-light: #f8f9fa;
            --bg-white: #ffffff;
            --text-dark: #212529;
            --text-medium: #495057;
            --text-light: #6c757d;
            --border-soft: #e0e0e0;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
            --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
            --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background-color: #f0f4f8;
            color: var(--text-dark);
            line-height: 1.6;
        }

        .sidebar {
            position: fixed;
            left: 0;
            top: 0;
            width: 280px;
            height: 100vh;
            background: linear-gradient(180deg, var(--primary) 0%, var(--primary-dark) 100%);
            color: white;
            padding: 2rem 0;
            overflow-y: auto;
            z-index: 1000;
            box-shadow: 4px 0 20px rgba(0,0,0,0.1);
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 0 2rem;
            margin-bottom: 3rem;
        }

        .logo i {
            font-size: 2rem;
            color: var(--accent);
        }

        .logo span {
            font-size: 1.5rem;
            font-weight: 700;
        }

        .table-of-contents {
            padding: 0 1.5rem;
        }

        .table-of-contents h3 {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: rgba(255,255,255,0.7);
            margin-bottom: 1rem;
            padding: 0 0.5rem;
        }

        .table-of-contents ul {
            list-style: none;
        }

        .table-of-contents li {
            margin-bottom: 0.5rem;
        }

        .table-of-contents a {
            display: block;
            padding: 0.75rem 1rem;
            color: rgba(255,255,255,0.9);
            text-decoration: none;
            border-radius: 8px;
            transition: all 0.3s ease;
            font-size: 0.95rem;
        }

        .table-of-contents a:hover {
            background-color: rgba(255,255,255,0.15);
            transform: translateX(5px);
        }

        .table-of-contents li.active a {
            background-color: rgba(255,255,255,0.2);
            font-weight: 600;
        }

        .back-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 1rem 2rem;
            margin-top: 3rem;
            color: rgba(255,255,255,0.9);
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .back-link:hover {
            color: white;
            background-color: rgba(255,255,255,0.1);
        }

        .main-content {
            margin-left: 280px;
            padding: 2rem 3rem;
            min-height: 100vh;
        }

        .hero-section {
            background: linear-gradient(135deg, #caf0f8 0%, #90e0ef 50%, #00b4d8 100%);
            padding: 4rem 3rem;
            border-radius: 20px;
            margin-bottom: 3rem;
            box-shadow: var(--shadow-md);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255,255,255,0.3) 0%, transparent 70%);
            border-radius: 50%;
        }

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

        .hero-badge {
            display: inline-block;
            background-color: var(--primary);
            color: white;
            padding: 8px 20px;
            border-radius: 50px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 1rem;
            box-shadow: 0 4px 12px rgba(0,119,182,0.3);
        }

        .hero-section h1 {
            font-size: 3rem;
            color: var(--primary-dark);
            margin-bottom: 1rem;
            font-weight: 700;
            line-height: 1.2;
        }

        .hero-section p {
            font-size: 1.25rem;
            color: var(--text-dark);
            max-width: 800px;
            line-height: 1.8;
        }

        .content-box {
            background-color: var(--bg-white);
            padding: 2.5rem;
            border-radius: 16px;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-soft);
        }

        .content-box h2 {
            font-size: 2rem;
            color: var(--primary);
            margin-bottom: 2rem;
            display: flex;
            align-items: center;
            gap: 12px;
            padding-bottom: 1rem;
            border-bottom: 3px solid var(--accent);
        }

        .content-box h2 i {
            color: var(--secondary);
        }

        .info-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.5rem;
        }

        .info-block {
            background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
            padding: 2rem;
            border-radius: 12px;
            border: 2px solid var(--border-soft);
            transition: all 0.3s ease;
        }

        .info-block:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--secondary);
        }

        .info-block:nth-child(1),
        .info-block:nth-child(2) {
            grid-column: 1 / -1;
        }

        .info-block h4 {
            color: var(--primary);
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .info-block h4::before {
            content: '';
            width: 4px;
            height: 24px;
            background-color: var(--secondary);
            border-radius: 2px;
        }

        .info-block p {
            color: var(--text-medium);
            font-size: 1rem;
            line-height: 1.8;
            margin-bottom: 0.5rem;
        }

        .info-block p strong {
            color: var(--primary-dark);
            font-weight: 600;
        }

        .team-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .team-card {
            background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
            padding: 2rem;
            border-radius: 16px;
            border: 2px solid var(--border-soft);
            text-align: center;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .team-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 5px;
            background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
            transform: scaleX(0);
            transition: transform 0.4s ease;
        }

        .team-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-lg);
            border-color: var(--secondary);
        }

        .team-card:hover::before {
            transform: scaleX(1);
        }

        .team-card.featured {
            background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
            border-color: var(--secondary);
        }

        .team-card.featured::before {
            height: 8px;
        }

        .team-photo-img {
            width: 160px;
            height: 160px;
            border-radius: 12px;
            object-fit: cover;
            object-position: top;
            margin: 0 auto 1.5rem;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
            border: 5px solid white;
            transition: all 0.3s ease;
        }

        .team-card:hover .team-photo-img {
            transform: scale(1.05);
            box-shadow: 0 12px 30px rgba(0,119,182,0.25);
        }

        .team-info h3 {
            font-size: 1.35rem;
            color: var(--primary-dark);
            margin-bottom: 0.5rem;
            font-weight: 700;
            line-height: 1.4;
        }

        .team-info p {
            color: var(--text-medium);
            font-size: 1.05rem;
            margin-bottom: 0.75rem;
            font-weight: 500;
        }

        .team-info span {
            display: inline-block;
            background-color: var(--bg-light);
            color: var(--text-light);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-family: 'Courier New', monospace;
            font-weight: 600;
        }

        .guru-section {
            text-align: center;
            padding: 3rem 2rem;
            background: linear-gradient(135deg, #e0f7fa 0%, #b2ebf2 100%);
            border-radius: 16px;
        }

        .guru-section h3 {
            font-size: 1.5rem;
            color: var(--primary-dark);
            line-height: 1.6;
            max-width: 700px;
            margin: 0 auto;
        }

        footer {
            text-align: center;
            padding: 2rem;
            background-color: var(--bg-white);
            border-radius: 12px;
            margin-top: 3rem;
            color: var(--text-medium);
            border-top: 3px solid var(--accent);
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.3s ease;
            }

            .main-content {
                margin-left: 0;
                padding: 1.5rem;
            }

            .hero-section {
                padding: 2.5rem 1.5rem;
            }

            .hero-section h1 {
                font-size: 2rem;
            }

            .hero-section p {
                font-size: 1.1rem;
            }

            .content-box {
                padding: 1.5rem;
            }

            .content-box h2 {
                font-size: 1.5rem;
            }

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

            .info-block:nth-child(1),
            .info-block:nth-child(2) {
                grid-column: auto;
            }

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

        @media (min-width: 769px) and (max-width: 1200px) {
            .team-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        .animate-on-scroll {
            opacity: 0;
            animation: fadeInUp 0.6s ease forwards;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .content-box:nth-child(2) { animation-delay: 0.1s; }
        .content-box:nth-child(3) { animation-delay: 0.2s; }
        .content-box:nth-child(4) { animation-delay: 0.3s; }
        .content-box:nth-child(5) { animation-delay: 0.4s; }