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

        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }

        /* Main Section */
        .testimonials-section {
            background-color: #3d4451;
            padding: 80px 20px;
            width: 100%;
        }

        .testimonials-container {
            max-width: 1400px;
            margin: 0 auto;
        }

        /* Header */
        .testimonials-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .testimonials-header-label {
            color: #a0a8b8;
            font-size: 14px;
            font-weight: 600;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-bottom: 15px;
        }

        .testimonials-header-title {
            color: #ffffff;
            font-size: 48px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 20px;
        }

        .testimonials-header-divider {
            width: 60px;
            height: 3px;
            background-color: #3498db;
            margin: 0 auto 20px;
        }

        .testimonials-header-description {
            color: #b8c1d1;
            font-size: 16px;
            line-height: 1.6;
        }

        /* Slider Wrapper */
        .slider-wrapper {
            position: relative;
            width: 100%;
            overflow: hidden;
        }

        .slider-container {
            display: flex;
            gap: 25px;
            transition: transform 0.6s ease-in-out;
            width: 100%;
        }

        /* Card */
        .testimonial-card {
            background-color: #ffffff;
            border-radius: 12px;
            padding: 40px 30px;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.3s ease;
            min-height: 450px;
            flex: 0 0 calc(25% - 19px);
            min-width: calc(25% - 19px);
        }

        .testimonial-card:hover {
            box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
            transform: translateY(-5px);
        }

        .testimonial-card.featured {
            background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
            color: #ffffff;
        }

        /* Avatar */
        .testimonial-avatar {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background-color: #f0f0f0;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            border: 4px solid rgba(0, 0, 0, 0.05);
            flex-shrink: 0;
        }

        .testimonial-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .testimonial-card.featured .testimonial-avatar {
            border-color: rgba(255, 255, 255, 0.3);
        }

        /* Name */
        .testimonial-name {
            font-size: 18px;
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 8px;
            letter-spacing: 0.5px;
            color: #1a1a1a;
        }

        .testimonial-card.featured .testimonial-name {
            color: #ffffff;
        }

        /* Course Title */
        .testimonial-course {
            font-size: 14px;
            color: #666666;
            margin-bottom: 12px;
            line-height: 1.5;
        }

        .testimonial-card.featured .testimonial-course {
            color: #e8f4f8;
        }

        /* Rating and Date */
        .testimonial-meta {
            font-size: 13px;
            font-weight: 600;
            color: #888888;
            margin-bottom: 20px;
            opacity: 0.8;
        }

        .testimonial-card.featured .testimonial-meta {
            color: #d0e8f2;
        }

        /* Divider */
        .testimonial-divider {
            width: 100%;
            height: 1px;
            background-color: rgba(0, 0, 0, 0.1);
            margin: 20px 0;
        }

        .testimonial-card.featured .testimonial-divider {
            background-color: rgba(255, 255, 255, 0.2);
        }

        /* Comment */
        .testimonial-comment {
            flex-grow: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .testimonial-comment-label {
            font-size: 12px;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #999999;
            margin-bottom: 12px;
            opacity: 0.7;
        }

        .testimonial-card.featured .testimonial-comment-label {
            color: #d0e8f2;
        }

        .testimonial-comment-text {
            font-size: 14px;
            line-height: 1.7;
            font-style: italic;
            color: #444444;
            position: relative;
        }

        .testimonial-card.featured .testimonial-comment-text {
            color: #ffffff;
        }

        .testimonial-comment-text::before {
            content: '"';
            font-size: 40px;
            color: #3498db;
            position: absolute;
            left: -15px;
            top: -20px;
            font-family: Georgia, serif;
            opacity: 0.3;
        }

        .testimonial-card.featured .testimonial-comment-text::before {
            color: rgba(255, 255, 255, 0.4);
        }

        /* Navigation Buttons */
        .slider-nav {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            background-color: #3498db;
            color: white;
            border: none;
            width: 50px;
            height: 50px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            transition: all 0.3s ease;
            z-index: 10;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            padding: 0;
        }

        .slider-nav:hover {
            background-color: #2980b9;
            transform: translateY(-50%) scale(1.1);
        }

        .slider-nav:disabled {
            opacity: 0.3;
            cursor: not-allowed;
        }

        .slider-nav:disabled:hover {
            transform: translateY(-50%) scale(1);
        }

        .slider-nav.prev {
            left: 10px;
        }

        .slider-nav.next {
            right: 10px;
        }

        /* Dots Indicator */
        .slider-dots {
            display: flex;
            gap: 10px;
            justify-content: center;
            margin-top: 40px;
        }

        .slider-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.3);
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            padding: 0;
        }

        .slider-dot.active {
            background-color: #3498db;
            width: 30px;
            border-radius: 6px;
        }

        .slider-dot:hover {
            background-color: rgba(255, 255, 255, 0.5);
        }

        /* Responsive */
        @media (max-width: 1200px) {
            .testimonial-card {
                flex: 0 0 calc(33.333% - 17px);
                min-width: calc(33.333% - 17px);
            }
        }

        @media (max-width: 992px) {
            .testimonial-card {
                flex: 0 0 calc(50% - 13px);
                min-width: calc(50% - 13px);
            }

            .testimonials-header-title {
                font-size: 36px;
            }

            .slider-nav {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }
        }

        @media (max-width: 768px) {
            .testimonials-section {
                padding: 60px 15px;
            }

            .testimonials-header {
                margin-bottom: 40px;
            }

            .testimonials-header-title {
                font-size: 28px;
            }

            .testimonial-card {
                flex: 0 0 100%;
                min-width: 100%;
                min-height: auto;
                padding: 30px 20px;
            }

            .slider-nav {
                width: 35px;
                height: 35px;
                font-size: 16px;
            }

            .slider-nav.prev {
                left: 5px;
            }

            .slider-nav.next {
                right: 5px;
            }
        }