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

      body {
        font-family: "Poppins", sans-serif;
        background: #0a0a0a;
        color: #ffffff;
        overflow-x: hidden;
        line-height: 1.6;
      }

      /* Scroll Progress Bar */
      .progress-bar {
        position: fixed;
        top: 0;
        left: 0;
        width: 0%;
        height: 4px;
        background: linear-gradient(90deg, #8b5cf6, #06b6d4, #ec4899);
        z-index: 1000;
        transition: width 0.3s ease;
      }

      /* Hero Section */
      .hero {
        height: 100vh;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
        position: relative;
        background: linear-gradient(
          135deg,
          #0a0a0a 0%,
          #1a1a2e 50%,
          #16213e 100%
        );
        overflow: hidden;
      }

      .hero::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(
            circle at 30% 70%,
            rgba(139, 92, 246, 0.3) 0%,
            transparent 50%
          ),
          radial-gradient(
            circle at 70% 30%,
            rgba(6, 182, 212, 0.3) 0%,
            transparent 50%
          ),
          radial-gradient(
            circle at 50% 50%,
            rgba(236, 72, 153, 0.2) 0%,
            transparent 50%
          );
        animation: gradientShift 8s ease-in-out infinite;
      }

      @keyframes gradientShift {
        0%,
        100% {
          transform: scale(1) rotate(0deg);
        }
        50% {
          transform: scale(1.1) rotate(5deg);
        }
      }

      .hero-content {
        position: relative;
        z-index: 2;
        max-width: 800px;
        padding: 0 20px;
      }

      .logo-text {
        font-family: "Montserrat", sans-serif;
        font-size: clamp(2.5rem, 6vw, 4rem);
        font-weight: 800;
        margin-bottom: 20px;
        background: linear-gradient(45deg, #8b5cf6, #06b6d4, #ec4899, #8b5cf6);
        background-size: 300% 300%;
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        animation: gradientAnimation 3s ease-in-out infinite, glitch 4s infinite;
      }

      @keyframes gradientAnimation {
        0%,
        100% {
          background-position: 0% 50%;
        }
        50% {
          background-position: 100% 50%;
        }
      }

      @keyframes glitch {
        0%,
        90%,
        100% {
          transform: translate(0);
        }
        20% {
          transform: translate(-2px, 2px);
        }
        40% {
          transform: translate(-2px, -2px);
        }
        60% {
          transform: translate(2px, 2px);
        }
        80% {
          transform: translate(2px, -2px);
        }
      }

      .hero-subtitle {
        font-size: clamp(1.2rem, 3vw, 1.8rem);
        margin-bottom: 30px;
        opacity: 0;
        animation: typewriter 2s steps(50) 1s forwards;
      }

      @keyframes typewriter {
        from {
          width: 0;
          opacity: 1;
        }
        to {
          width: 100%;
          opacity: 1;
        }
      }

      .cta-button {
        display: inline-block;
        padding: 15px 40px;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border: none;
        border-radius: 50px;
        color: white;
        font-weight: 600;
        text-decoration: none;
        font-size: 1.1rem;
        position: relative;
        overflow: hidden;
        transition: all 0.3s ease;
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
      }

      .cta-button:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 30px rgba(139, 92, 246, 0.5);
      }

      .cta-button::before {
        content: "";
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 255, 255, 0.2);
        border-radius: 50%;
        transform: translate(-50%, -50%);
        transition: all 0.6s ease;
      }

      .cta-button:hover::before {
        width: 300px;
        height: 300px;
      }

      /* Stats Section */
      .stats {
        padding: 80px 20px;
        text-align: center;
        background: rgba(26, 26, 46, 0.5);
      }

      .stats-container {
        max-width: 1200px;
        margin: 0 auto;
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 40px;
      }

      .stat-item {
        padding: 30px;
        border-radius: 20px;
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.1),
          rgba(6, 182, 212, 0.1)
        );
        border: 1px solid rgba(139, 92, 246, 0.3);
        transition: all 0.3s ease;
      }

      .stat-item:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 40px rgba(139, 92, 246, 0.2);
      }

      .stat-number {
        font-size: 3rem;
        font-weight: 800;
        color: #8b5cf6;
        margin-bottom: 10px;
      }

      .stat-label {
        font-size: 1.1rem;
        color: #a0a0a0;
      }

      /* Portfolio Section */
      .portfolio {
        padding: 100px 20px;
        max-width: 1400px;
        margin: 0 auto;
      }

      .section-title {
        text-align: center;
        font-size: clamp(2.5rem, 5vw, 3.5rem);
        font-weight: 700;
        margin-bottom: 20px;
        background: linear-gradient(45deg, #8b5cf6, #06b6d4);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
      }

      .section-subtitle {
        text-align: center;
        font-size: 1.2rem;
        color: #a0a0a0;
        margin-bottom: 60px;
      }

      /* Filter Buttons */
      .filter-buttons {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
        margin-bottom: 50px;
      }

      .filter-btn {
        padding: 12px 25px;
        background: rgba(139, 92, 246, 0.1);
        border: 2px solid rgba(139, 92, 246, 0.3);
        border-radius: 25px;
        color: #ffffff;
        cursor: pointer;
        transition: all 0.3s ease;
        font-weight: 500;
      }

      .filter-btn:hover,
      .filter-btn.active {
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border-color: transparent;
        transform: translateY(-2px);
        box-shadow: 0 10px 20px rgba(139, 92, 246, 0.3);
      }

      /* Video Grid */
      .video-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 30px;
        margin-top: 40px;
      }

      .video-card {
        position: relative;
        border-radius: 20px;
        overflow: hidden;
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.1),
          rgba(6, 182, 212, 0.1)
        );
        border: 1px solid rgba(139, 92, 246, 0.2);
        transition: all 0.4s ease;
        cursor: pointer;
        aspect-ratio: 16/9;
      }

      .video-card:hover {
        transform: translateY(-10px) scale(1.02);
        box-shadow: 0 25px 50px rgba(139, 92, 246, 0.3);
        border-color: #8b5cf6;
      }

      .video-thumbnail {
        width: 100%;
        height: 100%;
        background: linear-gradient(45deg, #1a1a2e, #16213e);
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        overflow: hidden;
      }

      .video-thumbnail::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(
          circle,
          rgba(139, 92, 246, 0.2) 0%,
          transparent 70%
        );
        opacity: 0;
        transition: opacity 0.3s ease;
      }

      .video-card:hover .video-thumbnail::before {
        opacity: 1;
      }

      .play-icon {
        width: 80px;
        height: 80px;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 2rem;
        transition: all 0.3s ease;
        z-index: 2;
        position: relative;
      }

      .video-card:hover .play-icon {
        transform: scale(1.2);
        box-shadow: 0 0 30px rgba(139, 92, 246, 0.6);
      }

      .video-title-overlay {
        position: absolute;
        bottom: 20px;
        left: 20px;
        right: 20px;
        color: white;
        font-weight: 600;
        font-size: 1.1rem;
        opacity: 0;
        transition: all 0.3s ease;
        z-index: 3;
        text-align: left;
        text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8);
      }

      .video-card:hover .video-title-overlay {
        opacity: 1;
        transform: translateY(-5px);
        text-shadow: 0 0 20px rgba(139, 92, 246, 0.8),
          2px 2px 8px rgba(0, 0, 0, 0.8);
      }

      .video-title {
        font-weight: 600;
        margin-bottom: 5px;
        font-size: 1.1rem;
      }

      .video-category {
        color: #06b6d4;
        font-size: 0.9rem;
        text-transform: uppercase;
        letter-spacing: 1px;
        opacity: 0.9;
      }

      /* Lightbox */
      .lightbox {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.9);
        display: none;
        align-items: center;
        justify-content: center;
        z-index: 1000;
        padding: 20px;
      }

      .lightbox-content {
        max-width: 800px;
        width: 100%;
        background: #1a1a2e;
        border-radius: 20px;
        padding: 30px;
        position: relative;
        border: 1px solid rgba(139, 92, 246, 0.3);
      }

      .close-btn {
        position: absolute;
        top: 15px;
        right: 20px;
        background: none;
        border: none;
        color: #ffffff;
        font-size: 2rem;
        cursor: pointer;
        transition: color 0.3s ease;
      }

      .close-btn:hover {
        color: #8b5cf6;
      }

      /* Responsive Design */
      @media (max-width: 768px) {
        .video-grid {
          grid-template-columns: 1fr;
        }

        .filter-buttons {
          gap: 10px;
        }

        .filter-btn {
          padding: 10px 20px;
          font-size: 0.9rem;
        }

        .stats-container {
          grid-template-columns: 1fr;
          gap: 20px;
        }
      }

      @media (max-width: 480px) {
        .hero-content {
          padding: 0 15px;
        }

        .cta-button {
          padding: 12px 30px;
          font-size: 1rem;
        }
      }

      /* Animation Classes */
      .fade-in {
        opacity: 0;
        transform: translateY(30px);
        transition: all 0.6s ease;
      }

      .fade-in.visible {
        opacity: 1;
        transform: translateY(0);
      }

      .hidden {
        display: none !important;
      }

      /* Dedicated Contact Buttons */
      .contact-buttons {
        position: fixed;
        bottom: 30px;
        left: 30px;
        z-index: 999;
        display: flex;
        flex-direction: column;
        gap: 15px;
      }

      .contact-btn {
        width: 60px;
        height: 60px;
        border-radius: 50%;
        border: none;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
      }

      .contact-btn.contact-us {
        background: linear-gradient(45deg, #06b6d4, #0891b2);
      }

      .contact-btn.call-us {
        background: linear-gradient(45deg, #10b981, #059669);
      }

      .contact-btn:hover {
        transform: scale(1.1);
        box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4);
      }

      .contact-btn::before {
        content: attr(data-tooltip);
        position: absolute;
        left: 75px;
        background: rgba(0, 0, 0, 0.8);
        color: white;
        padding: 8px 12px;
        border-radius: 6px;
        font-size: 0.9rem;
        white-space: nowrap;
        opacity: 0;
        transform: translateX(-10px);
        transition: all 0.3s ease;
        pointer-events: none;
        backdrop-filter: blur(10px);
      }

      .contact-btn:hover::before {
        opacity: 1;
        transform: translateX(0);
      }

      /* Feature 1: Floating Action Menu */
      .floating-menu {
        position: fixed;
        bottom: 30px;
        right: 30px;
        z-index: 999;
      }

      .floating-btn {
        width: 60px;
        height: 60px;
        border-radius: 50%;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border: none;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
        box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
      }

      .floating-btn:hover {
        transform: scale(1.1);
        box-shadow: 0 6px 25px rgba(139, 92, 246, 0.6);
      }

      .floating-options {
        position: absolute;
        bottom: 70px;
        right: 0;
        display: flex;
        flex-direction: column;
        gap: 10px;
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
        pointer-events: none;
      }

      .floating-options.active {
        opacity: 1;
        transform: translateY(0);
        pointer-events: all;
      }

      .floating-option {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        background: rgba(139, 92, 246, 0.9);
        border: none;
        color: white;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        position: relative;
      }

      .floating-option:hover {
        background: #8b5cf6;
        transform: scale(1.1);
      }

      .floating-option::before {
        content: attr(data-tooltip);
        position: absolute;
        right: 60px;
        background: rgba(0, 0, 0, 0.8);
        color: white;
        padding: 8px 12px;
        border-radius: 6px;
        font-size: 0.8rem;
        white-space: nowrap;
        opacity: 0;
        transform: translateX(10px);
        transition: all 0.3s ease;
        pointer-events: none;
      }

      .floating-option:hover::before {
        opacity: 1;
        transform: translateX(0);
      }

      /* Feature 2: Dark/Light Mode Toggle */
      .theme-toggle {
        position: fixed;
        top: 30px;
        right: 30px;
        z-index: 999;
        background: rgba(139, 92, 246, 0.2);
        border: 2px solid rgba(139, 92, 246, 0.3);
        border-radius: 25px;
        padding: 8px 16px;
        color: white;
        cursor: pointer;
        transition: all 0.3s ease;
        backdrop-filter: blur(10px);
      }

      .theme-toggle:hover {
        background: rgba(139, 92, 246, 0.3);
        border-color: #8b5cf6;
      }

      /* Feature 3: Video Preview on Hover */
      .video-preview {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: linear-gradient(45deg, #8b5cf6, #ec4899, #06b6d4);
        background-size: 400% 400%;
        animation: gradientShift 3s ease-in-out infinite;
        opacity: 0;
        transition: opacity 0.3s ease;
      }

      .video-card:hover .video-preview {
        opacity: 0.1;
      }

      /* Feature 4: Client Testimonials Carousel */
      .testimonials {
        padding: 80px 20px;
        background: rgba(26, 26, 46, 0.3);
        overflow: hidden;
      }

      .testimonials-container {
        max-width: 1200px;
        margin: 0 auto;
        text-align: center;
        position: relative;
      }

      .testimonial-wrapper {
        position: relative;
        overflow: hidden;
        border-radius: 20px;
        margin: 0 60px;
      }

      .testimonial-slider {
        display: flex;
        transition: transform 0.5s ease;
        gap: 30px;
      }

      .testimonial-card {
        min-width: 100%;
        padding: 40px;
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.15),
          rgba(6, 182, 212, 0.15)
        );
        border-radius: 20px;
        border: 2px solid rgba(139, 92, 246, 0.3);
        text-align: center;
        position: relative;
        overflow: hidden;
      }

      .testimonial-card::before {
        content: '"';
        position: absolute;
        top: 10px;
        left: 20px;
        font-size: 4rem;
        color: rgba(139, 92, 246, 0.3);
        font-family: serif;
      }

      .testimonial-text {
        font-size: 1.2rem;
        margin-bottom: 25px;
        font-style: italic;
        color: #e0e0e0;
        line-height: 1.6;
        position: relative;
        z-index: 2;
      }

      .testimonial-author {
        font-weight: 700;
        color: #8b5cf6;
        font-size: 1.1rem;
        margin-bottom: 5px;
      }

      .testimonial-role {
        color: #a0a0a0;
        font-size: 0.95rem;
      }

      .testimonial-nav {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        width: 50px;
        height: 50px;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border: none;
        border-radius: 50%;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
      }

      .testimonial-nav:hover {
        transform: translateY(-50%) scale(1.1);
        box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
      }

      .testimonial-nav.prev {
        left: 0;
      }

      .testimonial-nav.next {
        right: 0;
      }

      .testimonial-dots {
        display: flex;
        justify-content: center;
        gap: 10px;
        margin-top: 30px;
      }

      .testimonial-dot {
        width: 12px;
        height: 12px;
        border-radius: 50%;
        background: rgba(139, 92, 246, 0.3);
        cursor: pointer;
        transition: all 0.3s ease;
      }

      .testimonial-dot.active {
        background: #8b5cf6;
        transform: scale(1.2);
      }

      /* Skills Grid */
      .skills-section {
        padding: 80px 20px;
        text-align: center;
      }

      .skills-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 30px;
        max-width: 1200px;
        margin: 0 auto;
      }

      .skill-card {
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.1),
          rgba(6, 182, 212, 0.1)
        );
        border: 2px solid rgba(139, 92, 246, 0.3);
        border-radius: 20px;
        padding: 30px;
        text-align: center;
        transition: all 0.4s ease;
        position: relative;
        overflow: hidden;
      }

      .skill-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(
          45deg,
          rgba(139, 92, 246, 0.1),
          rgba(6, 182, 212, 0.1)
        );
        opacity: 0;
        transition: opacity 0.3s ease;
      }

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

      .skill-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 20px 40px rgba(139, 92, 246, 0.3);
        border-color: #8b5cf6;
      }

      .skill-icon {
        font-size: 3rem;
        margin-bottom: 20px;
        display: block;
        position: relative;
        z-index: 2;
      }

      .skill-card h3 {
        color: #8b5cf6;
        font-size: 1.4rem;
        margin-bottom: 15px;
        font-weight: 700;
        position: relative;
        z-index: 2;
      }

      .skill-card p {
        color: #a0a0a0;
        margin-bottom: 20px;
        line-height: 1.6;
        position: relative;
        z-index: 2;
      }

      .skill-bar {
        width: 100%;
        height: 8px;
        background: rgba(139, 92, 246, 0.2);
        border-radius: 10px;
        overflow: hidden;
        margin-bottom: 10px;
        position: relative;
        z-index: 2;
      }

      .skill-progress {
        height: 100%;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border-radius: 10px;
        width: 0%;
        transition: width 2s ease-in-out;
        position: relative;
      }

      .skill-progress::after {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(
          90deg,
          transparent,
          rgba(255, 255, 255, 0.3),
          transparent
        );
        animation: shimmer 2s infinite;
      }

      @keyframes shimmer {
        0% {
          transform: translateX(-100%);
        }
        100% {
          transform: translateX(100%);
        }
      }

      .skill-percentage {
        color: #8b5cf6;
        font-weight: 700;
        font-size: 1.1rem;
        position: relative;
        z-index: 2;
      }

      /* Feature 6: Project Timeline */
      .timeline {
        padding: 80px 20px;
        max-width: 1000px;
        margin: 0 auto;
      }

      .timeline-container {
        position: relative;
      }

      .timeline-line {
        position: absolute;
        left: 60px;
        top: 50px;
        bottom: 50px;
        width: 4px;
        background: linear-gradient(
          to bottom,
          #8b5cf6,
          #ec4899,
          #06b6d4,
          #8b5cf6
        );
        background-size: 100% 200%;
        animation: timelineFlow 4s ease-in-out infinite;
        border-radius: 2px;
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.5);
        z-index: 1;
      }

      @keyframes timelineFlow {
        0%,
        100% {
          background-position: 0% 0%;
        }
        50% {
          background-position: 0% 100%;
        }
      }

      .timeline-item {
        display: flex;
        margin-bottom: 60px;
        position: relative;
        opacity: 0;
        transform: translateY(50px);
        transition: all 0.8s ease;
        margin-left: 100px;
      }

      .timeline-item.animate {
        opacity: 1;
        transform: translateY(0);
      }

      .timeline-content {
        flex: 1;
        padding: 25px;
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.15),
          rgba(6, 182, 212, 0.15)
        );
        border-radius: 20px;
        border: 2px solid rgba(139, 92, 246, 0.3);
        margin-left: 20px;
        transition: all 0.4s ease;
        position: relative;
        overflow: hidden;
        z-index: 2;
      }

      .timeline-content::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: linear-gradient(
          45deg,
          rgba(139, 92, 246, 0.1),
          rgba(6, 182, 212, 0.1)
        );
        opacity: 0;
        transition: opacity 0.3s ease;
      }

      .timeline-content:hover::before {
        opacity: 1;
      }

      .timeline-content:hover {
        transform: translateY(-10px) scale(1.02);
        box-shadow: 0 20px 40px rgba(139, 92, 246, 0.3);
        border-color: #8b5cf6;
      }

      .timeline-content h3 {
        color: #8b5cf6;
        font-size: 1.3rem;
        margin-bottom: 10px;
        position: relative;
        z-index: 2;
      }

      .timeline-content p {
        color: #e0e0e0;
        line-height: 1.6;
        position: relative;
        z-index: 2;
      }

      .timeline-dot {
        position: absolute;
        left: -90px;
        top: 25px;
        width: 20px;
        height: 20px;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border-radius: 50%;
        border: 4px solid #0a0a0a;
        box-shadow: 0 0 20px rgba(139, 92, 246, 0.6);
        animation: pulse 2s ease-in-out infinite;
        z-index: 3;
      }

      @keyframes pulse {
        0%,
        100% {
          transform: translateX(-50%) scale(1);
        }
        50% {
          transform: translateX(-50%) scale(1.2);
        }
      }

      .timeline-year {
        position: absolute;
        left: -110px;
        top: -10px;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        color: white;
        padding: 5px 15px;
        border-radius: 20px;
        font-size: 0.9rem;
        font-weight: 600;
        box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
        z-index: 4;
        white-space: nowrap;
      }

      /* Feature 7: Interactive Pricing Calculator */
      .pricing-calculator {
        padding: 80px 20px;
        background: rgba(26, 26, 46, 0.5);
      }

      .calculator-container {
        max-width: 800px;
        margin: 0 auto;
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.1),
          rgba(6, 182, 212, 0.1)
        );
        border-radius: 20px;
        padding: 40px;
        border: 1px solid rgba(139, 92, 246, 0.3);
      }

      .calculator-option {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 20px;
        padding: 15px;
        background: rgba(139, 92, 246, 0.1);
        border-radius: 10px;
        cursor: pointer;
        transition: all 0.3s ease;
      }

      .calculator-option:hover {
        background: rgba(139, 92, 246, 0.2);
      }

      .calculator-option input[type="checkbox"] {
        width: 20px;
        height: 20px;
        accent-color: #8b5cf6;
      }

      .price-display {
        text-align: center;
        margin-top: 30px;
        padding: 20px;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border-radius: 15px;
        font-size: 2rem;
        font-weight: 700;
      }

      /* Simple Chat Popup */
      .chat-popup {
        position: fixed;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        width: 90%;
        max-width: 500px;
        height: 70vh;
        max-height: 600px;
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
        border-radius: 20px;
        border: 2px solid rgba(139, 92, 246, 0.4);
        display: none;
        flex-direction: column;
        z-index: 1001;
        box-shadow: 0 25px 80px rgba(0, 0, 0, 0.5);
        animation: popupSlideIn 0.3s ease-out;
      }

      @keyframes popupSlideIn {
        from {
          opacity: 0;
          transform: translate(-50%, -50%) scale(0.9);
        }
        to {
          opacity: 1;
          transform: translate(-50%, -50%) scale(1);
        }
      }

      .chat-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.7);
        display: none;
        z-index: 1000;
        backdrop-filter: blur(5px);
      }

      .chat-header {
        padding: 20px;
        background: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
        border-radius: 20px 20px 0 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
      }

      .chat-header h3 {
        margin: 0;
        font-size: 1.2rem;
        font-weight: 700;
      }

      .chat-close {
        background: none;
        border: none;
        color: white;
        font-size: 1.5rem;
        cursor: pointer;
        padding: 5px;
        border-radius: 50%;
        transition: background 0.3s ease;
      }

      .chat-close:hover {
        background: rgba(255, 255, 255, 0.2);
      }

      .chat-messages {
        flex: 1;
        padding: 20px;
        overflow-y: auto;
        display: flex;
        flex-direction: column;
        gap: 15px;
      }

      .chat-messages::-webkit-scrollbar {
        width: 6px;
      }

      .chat-messages::-webkit-scrollbar-track {
        background: rgba(139, 92, 246, 0.1);
        border-radius: 3px;
      }

      .chat-messages::-webkit-scrollbar-thumb {
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border-radius: 3px;
      }

      .chat-input-area {
        padding: 20px;
        border-top: 1px solid rgba(139, 92, 246, 0.3);
        display: flex;
        gap: 10px;
      }

      .chat-input-area input {
        flex: 1;
        padding: 12px 20px;
        background: rgba(139, 92, 246, 0.1);
        border: 2px solid rgba(139, 92, 246, 0.3);
        border-radius: 25px;
        color: white;
        outline: none;
        font-size: 1rem;
      }

      .chat-input-area input:focus {
        border-color: #8b5cf6;
        box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
      }

      .chat-input-area input::placeholder {
        color: rgba(255, 255, 255, 0.5);
      }

      .chat-send {
        padding: 12px 20px;
        background: linear-gradient(45deg, #8b5cf6, #ec4899);
        border: none;
        border-radius: 25px;
        color: white;
        cursor: pointer;
        font-weight: 600;
        transition: all 0.3s ease;
      }

      .chat-send:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 15px rgba(139, 92, 246, 0.4);
      }

      .message {
        padding: 12px 18px;
        border-radius: 18px;
        max-width: 80%;
        word-wrap: break-word;
        line-height: 1.5;
      }

      .message.bot {
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.2),
          rgba(139, 92, 246, 0.1)
        );
        border: 1px solid rgba(139, 92, 246, 0.3);
        align-self: flex-start;
        border-bottom-left-radius: 6px;
      }

      .message.user {
        background: linear-gradient(
          135deg,
          rgba(6, 182, 212, 0.2),
          rgba(6, 182, 212, 0.1)
        );
        border: 1px solid rgba(6, 182, 212, 0.3);
        align-self: flex-end;
        border-bottom-right-radius: 6px;
      }

      /* Feature 9: Video Loading Simulation */
      .loading-overlay {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.8);
        display: none;
        align-items: center;
        justify-content: center;
        border-radius: 20px;
        z-index: 10;
      }

      .loading-spinner {
        width: 50px;
        height: 50px;
        border: 3px solid rgba(139, 92, 246, 0.3);
        border-top: 3px solid #8b5cf6;
        border-radius: 50%;
        animation: spin 1s linear infinite;
      }

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

      /* Feature 10: Social Proof Notifications */
      .social-proof {
        position: fixed;
        bottom: 120px;
        left: 30px;
        background: linear-gradient(
          135deg,
          rgba(139, 92, 246, 0.9),
          rgba(6, 182, 212, 0.9)
        );
        padding: 15px 20px;
        border-radius: 10px;
        color: white;
        font-size: 0.9rem;
        transform: translateX(-400px);
        transition: transform 0.5s ease;
        z-index: 997;
        backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.2);
      }

      .social-proof.show {
        transform: translateX(0);
      }

      .social-proof-close {
        background: none;
        border: none;
        color: white;
        float: right;
        cursor: pointer;
        margin-left: 10px;
      }

      /* Responsive adjustments for new features */
      @media (max-width: 768px) {
        .floating-menu {
          bottom: 20px;
          right: 20px;
        }

        .theme-toggle {
          top: 20px;
          right: 20px;
        }

        .chat-popup {
          width: 95%;
          height: 80vh;
          max-height: 500px;
        }

        .social-proof {
          bottom: 100px;
          left: 20px;
          right: 20px;
          width: auto;
        }

        .testimonial-card {
          min-width: 280px;
        }

        .timeline-line {
          left: 20px;
        }

        .timeline-item {
          flex-direction: column !important;
          margin-left: 40px;
        }

        .timeline-dot {
          left: 10px;
        }

        .timeline-year {
          left: -5px;
          top: -15px;
          font-size: 0.8rem;
          padding: 3px 10px;
        }
      }