@font-face {
    font-family: Montserrat;
    font-display: swap;
    src: local('Montserrat'),url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap') format('woff2');
    font-weight: 400 700;
  }
  
  @font-face {
    font-family: Poppins;
    font-display: swap;
    src: local('Poppins'),url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap') format('woff2');
    font-weight: 300 700;
  }
  
  :root {
    --primary:#6B73FF;
    --primary-dark:#000DFF;
    --primary-light:rgba(107, 115, 255, 0.1);
    --text-primary:#2C3E50;
    --text-secondary:#6C7A89;
    --background:#F8FAFC;
    --white:#FFFFFF;
    --card-bg:#FFFFFF;
    --border-color:#E1E1E1;
    --nav-bg:#FFFFFF;
    --footer-bg:#FFFFFF;
    --success:#28a745;
    --danger:#dc3545;
    --warning:#ffc107;
    --info:#17a2b8;
    --container-max-width:1200px;
    --container-padding:clamp(1rem, 3vw, 2rem);
    --nav-height:clamp(60px, 8vh, 80px);
    --border-radius:clamp(8px, 1vw, 16px);
    --spacing-unit:clamp(0.5rem, 1vw, 1rem);
    --shadow-sm:0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md:0 4px 20px rgba(0, 0, 0, 0.1);
    --gradient:linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --transition:all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-size-base:clamp(14px, 1vw, 16px);
    --line-height-base:1.5;
    --font-family-primary:'Poppins',system-ui,-apple-system,sans-serif;
    --background-rgb:248,250,252;
    --card-bg-rgb:255,255,255;
    --border-color-rgb:225,225,225;
    --primary-rgb: 107, 115, 255;
  }
  
  [data-theme=dark] {
    --primary:#8B92FF;
    --primary-dark:#4B51FF;
    --primary-light:rgba(107, 115, 255, 0.2);
    --text-primary:#FFFFFF;
    --text-secondary:#B0B0B0;
    --background:#121212;
    --white:#1E1E1E;
    --card-bg:#1E1E1E;
    --border-color:#2D2D2D;
    --nav-bg:#1E1E1E;
    --footer-bg:#1E1E1E;
    --shadow-sm:0 2px 10px rgba(0, 0, 0, 0.5);
    --shadow-md:0 4px 20px rgba(0, 0, 0, 0.5);
    --background-rgb:18,18,18;
    --card-bg-rgb:30,30,30;
    --border-color-rgb:45,45,45;
  }
  
  [data-theme=dark] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 255, 255, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")!important;
  }
  
  [data-theme=dark] .navbar-toggler {
    border-color: rgba(255,255,255,.1);
  }
  
  [data-theme=dark] .navbar-toggler:focus {
    box-shadow: 0 0 0 .25rem rgba(255,255,255,.1);
  }
  
  body {
    font-family: var(--font-family-primary);
    color: var(--text-primary);
    background-color: var(--background);
    line-height: var(--line-height-base);
    font-size: var(--font-size-base);
    margin: 0;
    padding: 0;
  }
  
  h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
    font-weight: 700;
    margin-top: 0;
    color: var(--text-primary);
  }
  
  section {
    padding: calc(var(--spacing-unit) * 8) 0;
    position: relative;
  }
  
  .container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
  }
  
  .gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    font-weight: 700;
    position: relative;
  }
  
  .section-header {
    margin-bottom: calc(var(--spacing-unit) * 5);
  }
  
  .section-title {
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 800;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    color: var(--text-primary);
    position: relative;
    display: inline-block;
  }
  
  .section-title:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
  }
  
  .section-description {
    font-size: clamp(1rem, 2vw, 1.125rem);
    color: var(--text-secondary);
    max-width: 760px;
  }
  
  .section-header.centered {
    text-align: center;
    margin-left: auto;
    margin-right: auto;
  }
  
  .section-header.centered .section-title:after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .section-header.centered .section-description {
    margin-left: auto;
    margin-right: auto;
  }
  
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    text-decoration: none;
    cursor: pointer;
    line-height: 1;
    border: none;
  }
  
  .btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(107, 115, 255, 0.3);
  }
  
  .btn-primary:hover, .btn-primary:focus {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(107, 115, 255, 0.4);
  }
  
  .btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
  }
  
  .btn-outline:hover, .btn-outline:focus {
    background: var(--primary-light);
    transform: translateY(-2px);
  }
  
  .btn-lg {
    padding: calc(var(--spacing-unit) * 1.75) calc(var(--spacing-unit) * 3.5);
    font-size: 1.125rem;
  }
  
  .hero-section {
    padding: calc(var(--spacing-unit) * 10) 0 calc(var(--spacing-unit) * 7.5);
    position: relative;
    overflow: hidden;
    text-align: center;
    background: linear-gradient(to bottom, rgba(var(--background-rgb), 1), rgba(var(--background-rgb), 0.8));
  }
  
  .hero-section::before {
    content: '';
    position: absolute;
    width: 150%;
    height: 100%;
    top: -50%;
    left: -25%;
    background: radial-gradient(circle at center, var(--primary-light) 0%, transparent 60%);
    z-index: -1;
    animation: pulse 8s infinite alternate;
  }
  
  @keyframes pulse {
    0% {
      opacity: 0.5;
      transform: scale(0.95);
    }
    100% {
      opacity: 0.8;
      transform: scale(1.05);
    }
  }
  
  .hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
  }
  
  .hero-title {
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: calc(var(--spacing-unit) * 3);
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing-unit) * 1.5);
    position: relative;
  }
  
  .hero-title::after {
    content: '';
    position: absolute;
    width: 100px;
    height: 6px;
    background: var(--gradient);
    bottom: -16px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 3px;
  }
  
  .hero-subtitle {
    font-size: clamp(1.5rem, 3vw, 1.75rem);
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: calc(var(--spacing-unit) * 2);
    display: inline-block;
    position: relative;
  }
  
  .hero-description {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    margin-bottom: calc(var(--spacing-unit) * 4);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: var(--text-secondary);
    line-height: 1.6;
  }
  
  .hero-buttons {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    justify-content: center;
    margin-top: calc(var(--spacing-unit) * 4);
  }
  
  .privacy-guarantee {
    background: linear-gradient(135deg, var(--primary-light), rgba(var(--background-rgb), 0.5));
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 4);
    margin: calc(var(--spacing-unit) * 6) auto;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }
  
  .privacy-guarantee::before {
    content: '';
    position: absolute;
    right: -2%;
    top: -30%;
    width: 300px;
    height: 300px;
    background: var(--gradient);
    border-radius: 50%;
    opacity: 0.05;
    z-index: 0;
  }
  
  .privacy-guarantee .container {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: calc(var(--spacing-unit) * 4);
    position: relative;
    z-index: 1;
  }
  
  .shield-icon {
    font-size: 3rem;
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-unit) * 2);
  }
  
  .guarantee-content h2 {
    font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
    font-weight: 700;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    font-size: clamp(1.5rem, 3vw, 1.75rem);
  }
  
  .guarantee-content p {
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing-unit) * 3);
    max-width: 600px;
  }
  
  .guarantee-badges {
    display: flex;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 2);
  }
  
  .guarantee-badge {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: calc(var(--border-radius) / 2);
    padding: calc(var(--spacing-unit)) calc(var(--spacing-unit) * 1.5);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit));
  }
  
  .guarantee-badge i {
    color: var(--success);
  }
  
  .learn-more-link {
    color: var(--primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: calc(var(--spacing-unit));
    transition: var(--transition);
    text-decoration: none;
  }
  
  .learn-more-link:hover {
    opacity: 0.8;
  }
  
  .learn-more-link i {
    font-size: 0.8rem;
    transition: var(--transition);
  }
  
  .learn-more-link:hover i {
    transform: translateX(4px);
  }
  
  .value-proposition {
    padding: calc(var(--spacing-unit) * 7.5) 0;
    background: linear-gradient(to bottom, rgba(var(--background-rgb), 1), var(--primary-light) 50%, rgba(var(--background-rgb), 1));
  }
  
  .value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
  }
  
  .value-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 4);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    height: 100%;
  }
  
  .value-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
  }
  
  .value-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), rgba(107, 115, 255, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: calc(var(--spacing-unit) * 3);
    position: relative;
  }
  
  .value-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 1px solid rgba(107, 115, 255, 0.5);
    top: 0;
    left: 0;
    animation: pulsate 2s infinite;
  }
  
  .value-icon i {
    font-size: 1.5rem;
    color: var(--primary);
  }
  
  .value-card h3 {
    font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    color: var(--text-primary);
  }
  
  .value-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    margin: 0;
  }
  
  @keyframes pulsate {
    0% {
      transform: scale(1);
      opacity: 1;
    }
    50% {
      transform: scale(1.1);
      opacity: 0.5;
    }
    100% {
      transform: scale(1);
      opacity: 1;
    }
  }
  
  .competitor-comparison {
    padding: calc(var(--spacing-unit) * 7.5) 0;
  }
  
  .comparison-table-container {
    overflow-x: auto;
    margin: 0 auto;
    max-width: 100%;
    box-shadow: var(--shadow-sm);
    border-radius: var(--border-radius);
  }
  
  .comparison-table {
    width: 100%;
    border-collapse: collapse;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
  }
  
  .comparison-table th,
  .comparison-table td {
    padding: calc(var(--spacing-unit) * 2.25);
    border-bottom: 1px solid var(--border-color);
  }
  
  .comparison-table th {
    background: var(--gradient);
    color: var(--white);
    font-family: 'Montserrat', system-ui, -apple-system, sans-serif;
    font-weight: 600;
    text-align: left;
    font-size: 1.1rem;
  }
  
  .comparison-table th:first-child {
    border-top-left-radius: var(--border-radius);
  }
  
  .comparison-table th:last-child {
    border-top-right-radius: var(--border-radius);
  }
  
  .comparison-table tr:last-child td:first-child {
    border-bottom-left-radius: var(--border-radius);
  }
  
  .comparison-table tr:last-child td:last-child {
    border-bottom-right-radius: var(--border-radius);
  }
  
  .comparison-table th.us {
    background: var(--primary);
  }
  
  .comparison-table td.us {
    background-color: var(--primary-light);
  }
  
  .comparison-table .feature-name {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 150px;
    font-size: 1rem;
  }
  
  .comparison-table td.us {
    color: var(--text-primary);
  }
  
  .comparison-table td.competitor {
    color: var(--text-secondary);
  }
  
  .comparison-table i {
    margin-right: calc(var(--spacing-unit));
  }
  
  .comparison-table td.us i {
    color: var(--primary);
  }
  
  .comparison-table td.competitor i {
    color: var(--text-secondary);
  }
  
  .comparison-table td.us .fa-check-circle {
    color: var(--success);
  }
  
  .comparison-table td.competitor .fa-times-circle,
  .comparison-table td.competitor .fa-exclamation-circle,
  .comparison-table td.competitor .fa-minus-circle {
    color: var(--danger);
  }
  
  .packages-section {
    padding: calc(var(--spacing-unit) * 7.5) 0;
  }
  
  .packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 4);
    margin-top: calc(var(--spacing-unit) * 4);
  }
  
  .package-card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    box-shadow: var(--shadow-sm);
  }
  
  .package-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
  }
  
  .popular-badge {
    position: absolute;
    top: calc(var(--spacing-unit) * 1.5);
    right: calc(var(--spacing-unit) * 1.5);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: calc(var(--spacing-unit) * 0.5) calc(var(--spacing-unit) * 1.5);
    border-radius: 20px;
    z-index: 2;
  }
  
  .package-header {
    padding: calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 2);
    text-align: center;
  }
  
  .package-title {
    font-size: 1.5rem;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    color: var(--text-primary);
  }
  
  .package-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: calc(var(--spacing-unit));
  }
  
  .currency {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-right: calc(var(--spacing-unit) * 0.5);
  }
  
  .amount {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
  }
  
  .period {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-left: calc(var(--spacing-unit) * 0.5);
  }
  
  .package-content {
    padding: 0 calc(var(--spacing-unit) * 3) calc(var(--spacing-unit) * 3);
  }
  
  .package-description {
    color: var(--text-secondary);
    margin-bottom: calc(var(--spacing-unit) * 2.5);
    font-size: 0.95rem;
    text-align: center;
  }
  
  .package-features {
    list-style: none;
    padding: 0;
    margin: 0 0 calc(var(--spacing-unit) * 3);
  }
  
  .feature-item {
    padding: calc(var(--spacing-unit)) 0;
    font-size: 0.95rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
  }
  
  .feature-item i {
    color: var(--primary);
    margin-right: calc(var(--spacing-unit));
    font-size: 1rem;
  }
  
  .feature-item span {
    flex: 1;
  }
  
  .package-button {
    width: 100%;
    background: var(--gradient);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 1.5) calc(var(--spacing-unit) * 3);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: calc(var(--spacing-unit));
  }
  
  .package-button i {
    font-size: 0.75rem;
    transition: var(--transition);
  }
  
  .package-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(107, 115, 255, 0.3);
  }
  
  .package-button:hover i {
    transform: translateX(4px);
  }
  
  .testimonials-section {
    padding: calc(var(--spacing-unit) * 7.5) 0;
    background: linear-gradient(135deg, var(--primary-light), rgba(var(--background-rgb), 0.8));
  }
  
  .testimonials-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
  }
  
  .testimonials-slider {
    position: relative;
    overflow: hidden;
    margin: 0 -16px;
  }
  
  .testimonials-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
  }
  
  .testimonial-card {
    flex: 0 0 calc(33.333% - calc(var(--spacing-unit) * 4));
    margin: 0 calc(var(--spacing-unit) * 2);
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 3);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    min-height: 220px;
  }
  
  .testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
  }
  
  .testimonial-content {
    margin-bottom: calc(var(--spacing-unit) * 2);
    font-style: italic;
    color: var(--text-secondary);
    position: relative;
    flex-grow: 1;
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
  }
  
  .testimonial-content::before {
    content: '\201C';
    font-size: 4rem;
    position: absolute;
    left: -1rem;
    top: -2rem;
    opacity: 0.1;
    color: var(--primary);
    font-family: serif;
  }
  
  .testimonial-rating {
    margin-bottom: calc(var(--spacing-unit) * 1.5);
  }
  
  .testimonial-rating i {
    color: var(--warning);
    margin-right: 2px;
  }
  
  .testimonial-author {
    display: flex;
    align-items: center;
    padding-top: calc(var(--spacing-unit) * 1.5);
    border-top: 1px solid var(--border-color);
  }
  
  .author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: calc(var(--spacing-unit) * 1.5);
    border: 2px solid var(--primary-light);
    background-color: var(--border-color);
  }
  
  .author-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .author-info {
    display: flex;
    flex-direction: column;
  }
  
  .author-info h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 600;
  }
  
  .author-link {
    font-size: 0.85rem;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    margin-top: 4px;
  }
  
  .author-link:hover {
    color: var(--primary-dark);
    text-decoration: underline;
  }
  
  .slider-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: calc(var(--spacing-unit) * 4);
    gap: calc(var(--spacing-unit) * 2);
  }
  
  .slider-control {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--card-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
  }
  
  .slider-control:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
  }
  
  .slider-control:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
  }
  
  .slider-dots {
    display: flex;
    gap: 8px;
  }
  
  .slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
  }
  
  .slider-dot.active {
    background-color: var(--primary);
    transform: scale(1.2);
  }
  
  .slider-dot:hover {
    background-color: var(--primary-light);
  }
  
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.8s ease-out;
  }
  
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  .faq-section {
    padding: calc(var(--spacing-unit) * 7.5) 0;
  }
  
  .faq-container {
    max-width: 800px;
    margin: 0 auto;
  }
  
  .faq-item {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    margin-bottom: calc(var(--spacing-unit) * 2);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
    transition: var(--transition);
  }