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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #b8f1dd 0%, #b3d4f7 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
        }

        header {
            background: linear-gradient(135deg, #43cea2 0%, #185a9d 100%);
            color: white;
            padding: 30px;
            position: relative;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .task-info {
            flex: 1;
            min-width: 250px;
        }

        .task-number {
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            opacity: 0.9;
            margin-bottom: 5px;
        }

        .task-name {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.2;
        }

        .course-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.2);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 600;
            backdrop-filter: blur(10px);
        }

        .home-btn {
            background: white;
            color: #43cea2;
            padding: 12px 24px;
            border-radius: 25px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
            display: inline-block;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .home-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        }

        main {
            padding: 40px 30px;
        }

        .section {
            margin-bottom: 40px;
        }

        .section-title {
            font-size: 20px;
            font-weight: 700;
            color: #43cea2;
            margin-bottom: 15px;
            padding-bottom: 10px;
            border-bottom: 3px solid #43cea2;
            display: inline-block;
        }

        .content-box {
            background: #f8f9ff;
            padding: 25px;
            border-radius: 12px;
            border-left: 4px solid #43cea2;
            line-height: 1.8;
        }

        .content-box p {
            margin-bottom: 15px;
        }

        .image-container {
            margin: 20px 0;
            text-align: center;
        }

        .image-container img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        footer {
            background: #2d3748;
            color: white;
            padding: 30px;
        }

        .footer-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 15px;
            color: #43cea2;
        }

        .instructions {
            background: rgba(102, 126, 234, 0.1);
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 20px;
        }

        .instructions ol {
            margin-left: 20px;
            line-height: 2;
        }

        .instructions li {
            margin-bottom: 10px;
        }

        .highlight {
            color: #43cea2;
            font-weight: 600;
        }

        .email-link {
            color: #43cea2;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s ease;
        }

        .email-link:hover {
            color: #185a9d;
        }

        .submission-info {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
            margin-top: 20px;
        }

        .info-item {
            background: rgba(102, 126, 234, 0.1);
            padding: 15px;
            border-radius: 8px;
            text-align: center;
        }

        .info-label {
            font-size: 12px;
            opacity: 0.8;
            margin-bottom: 5px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .info-value {
            font-weight: 700;
            font-size: 16px;
            color: #43cea2;
        }

        @media (max-width: 768px) {
            body {
                padding: 10px;
            }

            header {
                padding: 20px;
            }

            .task-name {
                font-size: 22px;
            }

            .header-content {
                flex-direction: column;
                align-items: flex-start;
            }

            .home-btn {
                width: 100%;
                text-align: center;
            }

            main {
                padding: 25px 20px;
            }

            footer {
                padding: 20px;
            }

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