@layer reset, base, layout, components, utilities;

@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }

  body {
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  img, picture, svg, video {
    display: block;
    max-width: 100%;
    height: auto;
  }

  input, button, textarea, select {
    font: inherit;
  }

  button {
    background: none;
    border: none;
    cursor: pointer;
  }

  a {
    color: inherit;
    text-decoration: none;
  }

  ul {
    list-style: none;
  }
}

@layer base {
  :root {
    /* Design Tokens - Colors */
    --color-primary: hsl(220, 95%, 48%);
    --color-primary-hover: hsl(220, 95%, 40%);
    --color-primary-light: hsl(220, 100%, 97%);
    --color-primary-light-hover: hsl(220, 100%, 94%);
    --color-primary-glow: hsla(220, 95%, 48%, 0.15);
    
    --color-secondary: hsl(195, 100%, 43%);
    --color-secondary-hover: hsl(195, 100%, 35%);
    --color-secondary-light: hsl(195, 100%, 97%);
    
    --color-white: hsl(0, 0%, 100%);
    --color-bg-light: hsl(210, 50%, 98%);
    --color-bg-card: hsl(0, 0%, 100%);
    
    --color-text-dark: hsl(215, 28%, 17%);
    --color-text-muted: hsl(215, 16%, 47%);
    --color-border: hsl(214, 32%, 91%);
    
    --color-whatsapp: hsl(142, 70%, 45%);
    --color-whatsapp-hover: hsl(142, 70%, 38%);
    --color-whatsapp-glow: hsla(142, 70%, 45%, 0.15);
    
    --color-yellow: hsl(45, 100%, 50%);

    /* Typography */
    --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px -2px hsla(220, 30%, 10%, 0.04);
    --shadow-md: 0 8px 24px -8px hsla(220, 30%, 10%, 0.08);
    --shadow-lg: 0 16px 36px -12px hsla(220, 30%, 10%, 0.12);
    --shadow-xl: 0 24px 48px -12px hsla(220, 45%, 15%, 0.16);
    --shadow-inset: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Layout Sizes */
    --header-height-large: 90px;
    --header-height-small: 70px;
    --container-max-width: 1200px;
  }

  body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
  }

  /* Custom Selection */
  ::selection {
    background-color: var(--color-primary);
    color: var(--color-white);
  }

  /* Custom Scrollbar */
  scrollbar-color: var(--color-primary) var(--color-primary-light);
  scrollbar-width: thin;

  body::-webkit-scrollbar {
    width: 8px;
  }
  body::-webkit-scrollbar-track {
    background: var(--color-primary-light);
  }
  body::-webkit-scrollbar-thumb {
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
  }

  /* Accessible Focus Rings */
  :focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
  }

  /* Typography Defaults */
  h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.25;
    text-wrap: balance; /* Balanced headings */
  }

  p {
    text-wrap: pretty; /* Prevent orphans in paragraphs */
  }
}

@layer layout {
  .container {
    width: 100%;
    max-width: var(--container-max-width);
    margin-inline: auto;
    padding-inline: clamp(1.5rem, 5vw, 3rem);
  }

  .section-padding {
    padding-block: clamp(4rem, 10vw, 7rem);
  }

  .bg-light {
    background-color: var(--color-bg-light);
  }

  /* Header Styles */
  #main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height-large);
    background-color: transparent;
    transition: height var(--transition-normal), background-color var(--transition-normal), box-shadow var(--transition-normal);
    display: flex;
    align-items: center;
  }

  /* Shrinking header class added via JS */
  #main-header.scrolled {
    height: var(--header-height-small);
    background-color: hsla(0, 0%, 100%, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--color-border);
  }

  .header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    transition: transform var(--transition-fast);
  }
  
  .logo:hover {
    transform: scale(1.02);
  }

  .logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 10px hsla(220, 95%, 48%, 0.25);
  }

  .logo-icon i {
    width: 20px;
    height: 20px;
  }

  .logo .highlight {
    color: var(--color-secondary);
  }

  .nav-menu-container {
    display: flex;
    align-items: center;
  }

  .nav-list {
    display: flex;
    gap: 2rem;
  }

  .nav-link {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-text-dark);
    position: relative;
    padding-block: 0.5rem;
    transition: color var(--transition-fast);
  }

  .nav-link:hover, .nav-link.active {
    color: var(--color-primary);
  }

  /* Animated bottom line for active state */
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width var(--transition-fast);
  }

  .nav-link:hover::after, .nav-link.active::after {
    width: 100%;
  }

  .nav-cta-mobile {
    display: none;
  }

  /* Hamburger Menu Toggle */
  .menu-toggle-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    z-index: 1100;
  }

  .hamburger-line {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-dark);
    border-radius: var(--radius-full);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }

  /* Hero Layout */
  .hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--header-height-large) + 2rem);
    padding-bottom: 4rem;
    background: radial-gradient(circle at 80% 20%, hsl(220, 100%, 97%) 0%, var(--color-white) 60%);
    overflow: hidden;
  }

  .hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
  }

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

  .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    border: 1px solid hsla(220, 95%, 48%, 0.1);
  }

  .badge-icon {
    width: 14px;
    height: 14px;
  }

  .hero-title {
    font-size: clamp(2.5rem, 4.5vw, 3.75rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--color-text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.15;
  }

  .hero-subtitle {
    font-size: clamp(1.05rem, 1.2vw, 1.25rem);
    color: var(--color-text-muted);
    margin-bottom: 2.5rem;
    max-width: 580px;
    line-height: 1.6;
  }

  .hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
  }

  .hero-features {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
  }

  .hero-feature-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-dark);
  }

  .feature-icon {
    color: var(--color-primary);
    width: 18px;
    height: 18px;
  }

  .hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
  }

  .hero-img {
    filter: drop-shadow(0 20px 40px hsla(220, 30%, 10%, 0.15));
    border-radius: var(--radius-lg);
    z-index: 2;
  }

  /* Floating Cards */
  .floating-card {
    position: absolute;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 3;
    border: 1px solid var(--color-border);
    animation: float 6s ease-in-out infinite;
  }

  .card-time {
    top: 25%;
    left: -5%;
  }

  .card-rating {
    bottom: 15%;
    right: -2%;
    animation-delay: 3s;
  }

  .floating-card .card-icon {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
  }

  .floating-card .star-active {
    background-color: hsl(45, 100%, 95%);
    color: var(--color-yellow);
  }

  .card-title-small {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 0.1rem;
  }

  .card-value {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-dark);
  }

  @keyframes float {
    0%, 100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-10px);
    }
  }

  /* Section Header */
  .section-header {
    text-align: center;
    max-width: 650px;
    margin-inline: auto;
    margin-bottom: clamp(3rem, 8vw, 4.5rem);
  }

  .section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
  }

  .section-title {
    font-size: clamp(2rem, 3.5vw, 2.75rem);
    color: var(--color-text-dark);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
  }

  .section-subtitle {
    font-size: clamp(1rem, 1.1vw, 1.15rem);
    color: var(--color-text-muted);
  }
}

@layer components {
  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 0.9rem 1.8rem;
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    text-align: center;
    border: 2px solid transparent;
  }

  .btn-sm {
    padding: 0.55rem 1.25rem;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
  }

  .btn-lg {
    padding: 1.1rem 2.2rem;
    font-size: 1.05rem;
    border-radius: var(--radius-md);
  }

  .btn-full {
    display: flex;
    width: 100%;
  }

  .btn-icon {
    width: 18px;
    height: 18px;
    margin-inline-end: 0.5rem;
    flex-shrink: 0;
  }

  .btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 14px var(--color-primary-glow);
  }

  .btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--color-primary-glow);
  }

  .btn-primary:active:not(:disabled) {
    transform: translateY(0);
  }

  .btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
  }

  .btn-secondary {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-color: hsla(220, 95%, 48%, 0.1);
  }

  .btn-secondary:hover {
    background-color: var(--color-primary-light-hover);
    transform: translateY(-2px);
  }

  .btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
  }

  .btn-outline:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-2px);
  }

  .btn-light {
    background-color: var(--color-white);
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
  }

  .btn-light:hover {
    background-color: var(--color-bg-light);
    transform: translateY(-2px);
  }

  .color-whatsapp {
    color: var(--color-whatsapp) !important;
  }

  /* Steps Section Elements */
  .steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
  }

  .step-card {
    background-color: var(--color-bg-card);
    padding: 3rem 2.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
    overflow: hidden;
  }

  .step-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: hsla(220, 95%, 48%, 0.2);
  }

  .step-icon-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
  }

  .step-icon {
    width: 48px;
    height: 48px;
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    padding: 12px;
    border-radius: var(--radius-sm);
  }

  .step-number {
    font-size: 2.25rem;
    font-weight: 800;
    color: hsla(220, 20%, 85%, 0.4);
    line-height: 1;
  }

  .step-title {
    font-size: 1.25rem;
    color: var(--color-text-dark);
    margin-bottom: 1rem;
  }

  .step-desc {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
  }

  /* Pricing Cards */
  .pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    align-items: stretch;
    margin-bottom: 5rem;
  }

  .pricing-card {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: 3rem 2.25rem;
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    position: relative;
    display: flex;
    flex-direction: column;
  }

  .pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
  }

  /* Highlight/Popular card variant */
  .pricing-card.popular {
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: scale(1.03);
  }

  .pricing-card.popular:hover {
    box-shadow: var(--shadow-xl);
  }

  .popular-badge {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: 0.35rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .pricing-card-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 2rem;
  }

  .pricing-name {
    font-size: 1.5rem;
    color: var(--color-text-dark);
    margin-bottom: 0.5rem;
  }

  .pricing-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
  }

  .price-wrapper {
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
  }

  .price-value {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--color-text-dark);
    letter-spacing: -0.02em;
    line-height: 1;
  }

  .price-currency {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-primary);
  }

  .pricing-card-body {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
  }

  .pricing-features {
    margin-bottom: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
  }

  .pricing-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--color-text-dark);
  }

  .check-icon {
    width: 18px;
    height: 18px;
    color: var(--color-primary);
    flex-shrink: 0;
  }

  /* Pricing Calculator Widget */
  .calculator-container {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--color-border);
    overflow: hidden;
    margin-top: 4rem;
  }

  .calculator-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
  }

  .calculator-info {
    padding: clamp(2rem, 5vw, 3.5rem);
    background-color: var(--color-primary-light);
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .calculator-title {
    font-size: clamp(1.5rem, 2.5vw, 2rem);
    color: var(--color-primary);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
  }

  .calculator-desc {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
  }

  .calculator-zones-info {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .zone-info-item {
    display: flex;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--color-text-dark);
    line-height: 1.5;
  }

  .zone-dot {
    width: 10px;
    height: 10px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
    margin-top: 0.35rem;
  }

  .dot-a { background-color: var(--color-primary); }
  .dot-b { background-color: var(--color-secondary); }

  .calculator-form-wrapper {
    padding: clamp(2rem, 5vw, 3.5rem);
  }

  .calculator-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  .form-group label {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--color-text-dark);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  /* Form Styling */
  .calculator-form select {
    appearance: none;
    background-color: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    font-size: 0.95rem;
    color: var(--color-text-dark);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='hsl(215, 16%, 47%)' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7' /%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1.25rem;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  }

  .calculator-form select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
    outline: none;
  }

  .radio-group-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .radio-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    cursor: pointer;
    background-color: var(--color-bg-light);
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
  }

  .radio-label:hover {
    background-color: var(--color-white);
    border-color: var(--color-primary);
  }

  /* Style parent based on checked state via JS toggle class, or CSS :has() */
  .radio-label:has(input:checked) {
    border-color: var(--color-primary);
    background-color: var(--color-primary-light);
  }

  .radio-label input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
  }

  .custom-radio {
    width: 18px;
    height: 18px;
    border: 2px solid var(--color-text-muted);
    border-radius: var(--radius-full);
    display: inline-block;
    position: relative;
    flex-shrink: 0;
  }

  .radio-label input:checked + .custom-radio {
    border-color: var(--color-primary);
  }

  .radio-label input:checked + .custom-radio::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background-color: var(--color-primary);
    border-radius: var(--radius-full);
  }

  .radio-label strong {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-dark);
  }

  .radio-label small {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
  }

  /* Calculator Results block */
  .calculator-results {
    background-color: var(--color-primary-light);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    border: 1px solid hsla(220, 95%, 48%, 0.1);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    animation: fadeIn var(--transition-normal);
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .result-label {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-dark);
  }

  .result-value {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--color-primary);
  }

  .result-value.highlight {
    color: var(--color-secondary);
  }

  /* Testimonials Elements */
  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .testimonial-card {
    background-color: var(--color-bg-card);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  }

  .testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: hsla(220, 95%, 48%, 0.15);
  }

  .testimonial-rating {
    display: flex;
    gap: 0.25rem;
    margin-bottom: 1.5rem;
  }

  .star-icon {
    width: 18px;
    height: 18px;
  }

  .star-active {
    color: var(--color-yellow);
    fill: var(--color-yellow);
  }

  .testimonial-text {
    font-size: 1rem;
    color: var(--color-text-dark);
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 2rem;
  }

  .testimonial-user {
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .user-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
  }

  .text-avatar {
    background: linear-gradient(135deg, var(--color-primary-light), hsla(195, 100%, 43%, 0.1));
    color: var(--color-primary);
    border: 1px solid hsla(220, 95%, 48%, 0.15);
  }

  .user-name {
    font-size: 1rem;
    color: var(--color-text-dark);
    font-weight: 700;
  }

  .user-role {
    font-size: 0.8rem;
    color: var(--color-text-muted);
  }

  /* Bottom CTA Section */
  .cta-bottom-section {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    text-align: center;
    position: relative;
    overflow: hidden;
  }

  .cta-bottom-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 60%);
    pointer-events: none;
  }

  .cta-bottom-container {
    max-width: 800px;
  }

  .cta-bottom-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
  }

  .cta-bottom-subtitle {
    font-size: clamp(1.05rem, 1.3vw, 1.25rem);
    opacity: 0.9;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-inline: auto;
  }

  .cta-bottom-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
  }

  /* Footer */
  .main-footer {
    background-color: hsl(220, 30%, 10%);
    color: hsl(220, 15%, 85%);
    padding-top: 5rem;
    font-size: 0.95rem;
    border-top: 1px solid hsl(220, 30%, 15%);
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 3rem;
    padding-bottom: 4rem;
    border-bottom: 1px solid hsl(220, 30%, 16%);
  }

  .footer-col {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
  }

  .logo-footer {
    color: var(--color-white);
  }

  .logo-footer .logo-text {
    color: var(--color-white);
  }

  .footer-desc {
    color: hsl(220, 10%, 70%);
    line-height: 1.6;
  }

  .social-links {
    display: flex;
    gap: 1rem;
  }

  .social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background-color: hsl(220, 20%, 18%);
    color: var(--color-white);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
  }

  .social-icon:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
  }

  .footer-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 0.02em;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
  }

  .footer-links a {
    color: hsl(220, 10%, 70%);
    transition: color var(--transition-fast);
  }

  .footer-links a:hover {
    color: var(--color-white);
  }

  .footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .footer-contact-list li {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .contact-icon {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    flex-shrink: 0;
    margin-top: 0.15rem;
  }

  .footer-contact-list a {
    color: inherit;
    transition: color var(--transition-fast);
  }

  .footer-contact-list a:hover {
    color: var(--color-white);
  }

  .footer-bottom {
    background-color: hsl(220, 30%, 8%);
    padding-block: 1.75rem;
    font-size: 0.85rem;
    color: hsl(220, 10%, 60%);
  }

  .footer-bottom-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .footer-bottom-links {
    display: flex;
    gap: 1.5rem;
  }

  .footer-bottom-links a {
    transition: color var(--transition-fast);
  }

  .footer-bottom-links a:hover {
    color: var(--color-white);
  }
}

@layer utilities {
  /* Scroll Progress Line */
  #scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0;
    height: 4px;
    background: linear-gradient(to right, var(--color-primary), var(--color-secondary));
    z-index: 1001;
    transition: width 0.1s ease-out;
  }

  /* Text gradient helper */
  .text-gradient {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }

  /* Utility paddings and text alignments */
  .text-center { text-align: center; }

  /* Fallback scroll animation initial state */
  @media (prefers-reduced-motion: no-preference) {
    .scroll-reveal:not(.visible) {
      opacity: 0;
      transform: translateY(30px);
    }
    
    .scroll-reveal.visible {
      opacity: 1;
      transform: translateY(0);
      transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    }
  }

  /* Native CSS Scroll-Driven Animations */
  @media (prefers-reduced-motion: no-preference) {
    @supports ((animation-timeline: view()) and (animation-range: entry)) {
      @keyframes fade-in-up {
        from {
          opacity: 0;
          transform: translateY(40px);
        }
        to {
          opacity: 1;
          transform: translateY(0);
        }
      }

      /* When supported, override transition fallback completely to run smoothly in scroll sync */
      .scroll-reveal {
        animation: fade-in-up auto linear backwards;
        animation-timeline: view();
        animation-range: entry 5% cover 30%;
        /* Disable transition properties so scroll timeline works perfectly */
        transition: none !important; 
        opacity: 1 !important;
        transform: none !important;
      }
    }
  }
}

/* ==========================================================================
   Responsive Design Breakpoints
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --header-height-large: 80px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-features {
    justify-content: center;
  }

  .hero-image-wrapper {
    max-width: 500px;
    margin-inline: auto;
    width: 100%;
  }

  .card-time {
    left: -2%;
  }

  .steps-grid {
    gap: 1.5rem;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    max-width: 600px;
    margin-inline: auto;
  }

  .pricing-card.popular {
    transform: scale(1);
  }

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

  .calculator-info {
    padding: 3rem 2.25rem;
  }

  .calculator-form-wrapper {
    padding: 3rem 2.25rem;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 600px;
    margin-inline: auto;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  /* Hamburger Menu implementation */
  .menu-toggle-btn {
    display: flex;
  }

  .nav-menu-container {
    position: fixed;
    top: var(--header-height-large);
    left: 0;
    width: 100%;
    height: calc(100vh - var(--header-height-large));
    background-color: var(--color-white);
    padding: 2.5rem;
    flex-direction: column;
    justify-content: space-between;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: 1050;
    border-top: 1px solid var(--color-border);
  }

  #main-header.scrolled + main .nav-menu-container, 
  #main-header.scrolled .nav-menu-container {
    top: var(--header-height-small);
    height: calc(100vh - var(--header-height-small));
  }

  .nav-menu-container.open {
    transform: translateX(0);
  }

  .nav-list {
    flex-direction: column;
    gap: 1.75rem;
    width: 100%;
    text-align: center;
  }

  .nav-link {
    font-size: 1.25rem;
    display: block;
  }

  .nav-cta-mobile {
    display: block;
    width: 100%;
    margin-top: 2rem;
  }

  .header-cta {
    display: none;
  }

  /* Hamburger transform when menu is active */
  .menu-toggle-btn.open .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .menu-toggle-btn.open .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .menu-toggle-btn.open .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  /* Hero Adjustments */
  .hero-section {
    padding-top: calc(var(--header-height-large) + 1rem);
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 450px;
    margin-inline: auto;
  }

  .radio-group-container {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 480px) {
  .hero-section {
    padding-bottom: 2rem;
  }

  .floating-card {
    padding: 0.75rem 1rem;
  }

  .card-time {
    top: 15%;
    left: -2%;
  }

  .card-rating {
    bottom: 5%;
    right: -2%;
  }

  .calculator-info, .calculator-form-wrapper {
    padding: 2rem 1.25rem;
  }
  
  .pricing-card, .step-card, .testimonial-card {
    padding: 2.25rem 1.5rem;
  }
}

/* Contact Modal Styles */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.modal-overlay {
  position: absolute;
  inset: 0;
  background-color: hsla(215, 28%, 10%, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-container {
  position: relative;
  background-color: var(--color-bg-card);
  padding: clamp(2rem, 5vw, 3rem);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  z-index: 2010;
  animation: modalFadeIn var(--transition-normal) forwards;
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(15px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close-btn {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-full);
}

.modal-close-btn:hover {
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
}

.modal-title {
  font-size: 1.75rem;
  color: var(--color-text-dark);
  margin-bottom: 0.5rem;
}

.modal-subtitle {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal-form input,
.modal-form textarea {
  width: 100%;
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  font-size: 0.95rem;
  color: var(--color-text-dark);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.modal-form input:focus,
.modal-form textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
  outline: none;
}

.modal-form textarea {
  resize: vertical;
}

/* Success State Box */
.contact-success-box {
  display: none;
  text-align: center;
  padding-block: 2rem;
}

.success-icon-wrapper {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  width: 72px;
  height: 72px;
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

.success-icon {
  width: 36px;
  height: 36px;
}

.contact-success-box h4 {
  font-size: 1.5rem;
  color: var(--color-text-dark);
  margin-bottom: 0.75rem;
}

.contact-success-box p {
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 320px;
  margin-inline: auto;
}