/* Define Cascade Layers */
@layer reset, base, components, utilities;

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

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

  body {
    min-height: 100vh;
    text-rendering: optimizeSpeed;
    line-height: 1.6;
    overflow-x: hidden;
  }

  img, picture, video, canvas, svg {
    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, ol {
    list-style: none;
  }
}

@layer base {
  :root {
    color-scheme: light dark;

    /* Fonts - Goldman Sachs Editorial Style */
    --font-heading: 'Georgia', serif;
    --font-body: 'Inter', -apple-system, system-ui, sans-serif;

    /* Semantic Theme Colors - light mode first, polished professional palette */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8fbff;
    --color-bg-tertiary: #eef4ff;
    
    --color-text-primary: #0f172a;
    --color-text-secondary: #475569;
    --color-text-tertiary: #64748b;
    
    /* Brighter professional accent */
    --color-accent: #0b6ff2;
    --color-accent-dark: #054cc1;
    --color-accent-light: #93c0ff;
    --color-accent-glass: rgba(11, 111, 242, 0.12);
    
    /* Borders & Lines */
    --color-border: rgba(15, 23, 42, 0.08);
    --color-border-hover: rgba(11, 111, 242, 0.18);
    
    /* Glassmorphism settings */
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(15, 23, 42, 0.08);
    --glass-shadow: rgba(15, 23, 42, 0.1);
    --glass-blur: 18px;

    /* Spacing System */
    --space-xs: clamp(0.5rem, 0.4rem + 0.5vw, 1rem);
    --space-sm: clamp(0.75rem, 0.6rem + 0.75vw, 1.5rem);
    --space-md: clamp(1.25rem, 1rem + 1.25vw, 2.5rem);
    --space-lg: clamp(2rem, 1.6rem + 2vw, 4rem);
    --space-xl: clamp(3.5rem, 2.8rem + 3.5vw, 7rem);

    /* Animation Timings */
    --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);

    /* Rounded corner system */
    --radius-sm: 14px;
    --radius-md: 24px;
    --radius-lg: 34px;
    --radius-full: 9999px;
  }

  body {
    font-family: var(--font-body);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: background-color var(--transition-medium), color var(--transition-medium);
    font-size: clamp(1rem, 0.95rem + 0.25vw, 1.15rem);
    -webkit-font-smoothing: antialiased;
  }

  a { color: inherit; }

  h1, h2, h3, h4, h5, h6 { color: var(--color-text-primary); }
  p, li, span { color: var(--color-text-secondary); }
  strong { color: var(--color-text-primary); }


  /* Typography scale */
  h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.15;
    color: var(--color-text-primary);
  }

  h1 {
    font-size: clamp(2.5rem, 2rem + 2.5vw, 5rem);
    letter-spacing: -0.02em;
  }

  h2 {
    font-size: clamp(1.8rem, 1.5rem + 1.8vw, 3.5rem);
    letter-spacing: -0.01em;
  }

  h3 {
    font-size: clamp(1.4rem, 1.2rem + 1.4vw, 2.5rem);
  }

  h4 {
    font-size: clamp(1.1rem, 1rem + 1.1vw, 1.8rem);
  }

  p {
    font-family: var(--font-body);
    font-weight: 300;
    color: var(--color-text-secondary);
    line-height: 1.7;
    text-wrap: pretty;
  }

  strong {
    font-weight: 600;
  }
}

@layer components {
  /* Navigation Header */
  .header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(11, 111, 242, 0.12);
    transition: background-color var(--transition-medium), border-color var(--transition-medium);
  }


  .header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.75rem var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-right: 2rem;
  }

  .logo-img {
    height: 48px;
    width: auto;
    display: block;
  }

  .logo-mark {
    width: 24px;
    height: 24px;
    position: relative;
    display: inline-block;
  }

  .logo-mark::before, .logo-mark::after {
    content: '';
    position: absolute;
    border: 1.5px solid var(--color-accent);
  }

  .logo-mark::before {
    top: 0;
    left: 0;
    width: 14px;
    height: 14px;
  }

  .logo-mark::after {
    bottom: 0;
    right: 0;
    width: 14px;
    height: 14px;
    background-color: var(--color-bg-primary);
  }

  .nav-menu {
    display: flex;
    align-items: center;
    gap: 2.5rem;
  }

  .nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    position: relative;
    padding: 0.5rem 0;
    transition: color var(--transition-fast);
  }

  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-medium);
  }

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

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

  .header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }

  /* Theme Toggle button */
  .theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    display: grid;
    place-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
  }

  .theme-toggle:hover {
    color: var(--color-text-primary);
    border-color: var(--color-border-hover);
    background-color: var(--color-accent-glass);
  }

  .theme-toggle svg {
    width: 18px;
    height: 18px;
  }

  .theme-toggle .sun-icon {
    display: none;
  }
  
  html[style*="dark"] .theme-toggle .moon-icon {
    display: none;
  }

  html[style*="dark"] .theme-toggle .sun-icon {
    display: block;
  }

  /* Hamburger Menu */
  .hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 36px;
    padding: 0;
    background: none;
    border: none;
    cursor: pointer;
  }

  .hamburger span {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-primary);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
  }

  /* Premium Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.9rem 2.2rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-radius: var(--radius-sm);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
  }

  .btn-primary {
    background-color: var(--color-accent);
    color: #ffffff;
    box-shadow: 0 18px 40px rgba(11, 111, 242, 0.16);
  }

  .btn-primary:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 22px 48px rgba(11, 111, 242, 0.2);
  }

  .btn-secondary {
    border: 1px solid rgba(11, 111, 242, 0.16);
    color: var(--color-text-primary);
    background-color: #ffffff;
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.05);
  }

  .btn-secondary:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-accent);
    transform: translateY(-2px);
  }

  .btn-text {
    padding: 0;
    border-radius: 0;
    color: var(--color-accent);
    font-weight: 500;
    gap: 0.5rem;
  }

  .btn-text::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-medium);
  }

  .btn-text:hover::after {
    transform: scaleX(1);
    transform-origin: left;
  }

  .btn svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
  }

  .main-content {
    margin-top: 72px;
  }

  .hero-section {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
    background: transparent;
    position: relative;
    overflow: hidden;
  }

  .hero-bg-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    opacity: 1;
  }

  .hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(160deg, rgba(235, 245, 255, 0.78) 0%, rgba(255, 255, 255, 0.82) 100%);
    z-index: 1;
  }

  .hero-scroll-indicator {
    position: absolute;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
  }

  .hero-scroll-indicator .chevron-top {
    animation: chevron-blink 1.8s ease-in-out infinite;
  }

  .hero-scroll-indicator .chevron-bot {
    animation: chevron-blink 1.8s ease-in-out infinite 0.35s;
  }


  .container {
    max-width: 1180px;
  }

  .grid-two {
    gap: 2.5rem;
  }

  .hero-copy {
    max-width: 640px;
    padding-right: 1rem;
  }

  .hero-copy h1 {
    max-width: 18ch;
    line-height: 1.02;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
    font-weight: 700;
  }

  .hero-copy-text {
    font-size: 1.1rem;
    max-width: 560px;
    color: var(--color-text-secondary);
    line-height: 1.85;
    margin-bottom: var(--space-lg);
  }

  .hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: var(--space-lg);
  }

  .hero-highlight-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: var(--space-lg);
  }

  .hero-highlight {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    padding: 1.3rem 1.35rem;
    border-radius: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    min-height: 110px;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.04);
  }

  .hero-highlight-outcome {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    display: block;
    margin-bottom: 0.2rem;
  }

  .hero-highlight strong {
    font-size: 1.1rem;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
  }

  .hero-highlight span {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
  }

  .hero-visual-group {
    position: relative;
    width: 100%;
    max-width: 560px;
    display: flex;
    flex-direction: row;
    gap: 1rem;
    align-items: flex-start;
    padding-top: 1.5rem;
  }

  .hero-video-chip {
    position: absolute;
    top: -0.85rem;
    left: -0.85rem;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.72rem 0.95rem;
    border-radius: 999px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--color-text-primary);
    font-size: 0.85rem;
    backdrop-filter: blur(var(--glass-blur));
    z-index: 2;
  }

  .hero-video-icon {
    width: 1.2rem;
    height: 1.2rem;
    display: grid;
    place-items: center;
    border-radius: 999px;
    background: var(--color-accent);
    color: #ffffff;
    font-size: 0.85rem;
    line-height: 1;
  }

  .hero-visual-frame {
    position: relative;
    flex: 1;
    min-width: 0;
    border-radius: 1.5rem;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(235, 245, 255, 0.98), rgba(255, 255, 255, 0.98));
    border: 1px solid rgba(11, 111, 242, 0.12);
    box-shadow: 0 30px 90px rgba(11, 111, 242, 0.08);
  }

  .hero-visual-frame svg {
    display: block;
    width: 100%;
    height: auto;
  }

  .hero-visual-card {
    flex-shrink: 0;
    width: 155px;
    background: #ffffff;
    border: 1px solid rgba(11, 111, 242, 0.12);
    border-radius: 1.25rem;
    padding: 0.85rem;
    box-shadow: 0 28px 90px rgba(11, 111, 242, 0.1);
  }

  .hero-visual-card-title {
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-text-primary);
  }

  .hero-visual-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-size: 0.78rem;
    margin-bottom: 0.65rem;
  }

  .hero-visual-card-metrics {
    display: grid;
    gap: 0.65rem;
  }

  .hero-visual-card-metrics div {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    color: var(--color-text-secondary);
  }

  .hero-visual-card-metrics strong {
    color: var(--color-text-primary);
    font-size: 0.8rem;
  }

  .hero-visual-card-metrics div {
    font-size: 0.75rem;
    gap: 0.4rem;
  }

  @media (max-width: 900px) {
    .hero-copy {
      padding-right: 0;
    }

    .hero-highlight-row {
      grid-template-columns: 1fr;
    }

    .hero-video-chip {
      left: 50%;
      transform: translateX(-50%);
      top: -0.55rem;
    }

    .hero-visual-card {
      width: 100%;
      margin-top: var(--space-md);
      box-shadow: 0 20px 45px -20px rgba(15, 23, 42, 0.35);
    }

    .hero-visual-group {
      flex-direction: column;
    }
  }

  @media (max-width: 640px) {
    .hero-section {
      padding-top: calc(var(--space-xl) + 1.25rem);
      padding-bottom: calc(var(--space-xl) + 1.5rem);
    }

    .hero-copy h1 {
      font-size: clamp(2.4rem, 5vw, 3.5rem);
    }

    .hero-highlight {
      padding: 0.95rem 1rem;
    }

    .hero-video-chip {
      font-size: 0.8rem;
      padding: 0.55rem 0.85rem;
    }
  }

  .btn:hover svg {
    transform: translateX(4px);
  }

  /* Glassmorphic Cards */
  .card-glass {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.06);
    transition: transform var(--transition-medium), border-color var(--transition-medium), box-shadow var(--transition-medium);
  }

  .card-glass:hover {
    transform: translateY(-6px);
    border-color: var(--color-accent);
    box-shadow: 0 30px 60px rgba(15, 23, 42, 0.1);
  }

  /* Interactive Form - Investment Readiness Assessment */
  .assessment-container {
    max-width: 800px;
    margin: 0 auto;
  }

  .assessment-progress-bar {
    width: 100%;
    height: 4px;
    background-color: var(--color-border);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
    overflow: hidden;
  }

  .assessment-progress {
    height: 100%;
    width: 25%;
    background-color: var(--color-accent);
    transition: width var(--transition-medium);
  }

  .assessment-step {
    display: none;
  }

  .assessment-step.active {
    display: block;
    animation: fadeIn var(--transition-medium);
  }

  .option-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 1.5rem;
    margin-bottom: 2rem;
  }

  @media (min-width: 640px) {
    .option-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  .option-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    background-color: var(--color-bg-secondary);
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .option-card:hover {
    border-color: var(--color-accent);
    background-color: var(--color-accent-glass);
  }

  .option-card.selected {
    border-color: var(--color-accent);
    background-color: var(--color-accent-glass);
    box-shadow: inset 0 0 0 1px var(--color-accent);
  }

  .option-indicator {
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    border: 1.5px solid var(--color-text-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }

  .option-card.selected .option-indicator {
    border-color: var(--color-accent);
    background-color: var(--color-accent);
  }

  .option-card.selected .option-indicator::after {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-primary);
  }

  .assessment-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--color-border);
    padding-top: 1.5rem;
  }

  /* Assessment Score Results */
  .results-panel {
    text-align: center;
    display: none;
    animation: fadeIn var(--transition-medium);
  }

  .results-panel.active {
    display: block;
  }

  .gauge-container {
    width: 180px;
    height: 180px;
    margin: 2rem auto;
    position: relative;
  }

  .gauge-svg {
    transform: rotate(-90deg);
  }

  .gauge-track {
    fill: none;
    stroke: var(--color-border);
    stroke-width: 8;
  }

  .gauge-fill {
    fill: none;
    stroke: var(--color-accent);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 440;
    stroke-dashoffset: 440;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .gauge-percentage {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    font-family: var(--font-heading);
    font-weight: 500;
  }

  .results-breakdown {
    text-align: left;
    margin: 2rem 0;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
  }

  .results-breakdown h4 {
    margin-bottom: 1rem;
    color: var(--color-accent);
  }

  .results-breakdown ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .results-breakdown li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
  }

  .results-breakdown li svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
  }

  /* Roadmap Timeline Diagram */
  .roadmap-container {
    max-width: 1000px;
    margin: 4rem auto;
    position: relative;
  }

  .roadmap-container::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 16px;
    width: 1px;
    background-color: var(--color-border);
  }

  @media (min-width: 768px) {
    .roadmap-container::before {
      left: 50%;
    }
  }

  .roadmap-step {
    position: relative;
    margin-bottom: var(--space-md);
    padding-left: 45px;
  }

  @media (min-width: 768px) {
    .roadmap-step {
      display: flex;
      justify-content: space-between;
      padding-left: 0;
      margin-bottom: 4rem;
    }
    
    .roadmap-step:nth-child(even) {
      flex-direction: row-reverse;
    }

    .roadmap-step:nth-child(even) .roadmap-content {
      text-align: right;
    }
  }

  .roadmap-indicator {
    position: absolute;
    top: 4px;
    left: 8px;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    background-color: var(--color-bg-primary);
    border: 1.5px solid var(--color-accent);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .roadmap-indicator::after {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
    background-color: var(--color-accent);
  }

  @media (min-width: 768px) {
    .roadmap-indicator {
      left: 50%;
      transform: translateX(-50%);
      top: 10px;
    }
  }

  .roadmap-content {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px var(--glass-shadow);
  }

  @media (min-width: 768px) {
    .roadmap-content {
      width: 44%;
    }
    .roadmap-spacer {
      width: 44%;
    }
  }

  .roadmap-step-num {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    letter-spacing: 0.1em;
  }

  .roadmap-content h4 {
    margin-bottom: 0.5rem;
  }

  /* Testimonial Slider / Carousel */
  .testimonial-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
  }

  .testimonial-track {
    display: flex;
    transition: transform var(--transition-medium);
  }

  .testimonial-slide {
    min-width: 100%;
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .quote-icon {
    font-size: 4rem;
    font-family: var(--font-heading);
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: -1rem;
    opacity: 0.3;
  }

  .testimonial-text {
    font-family: var(--font-heading);
    font-size: clamp(1.4rem, 1.2rem + 0.8vw, 2.2rem);
    color: var(--color-text-primary);
    font-style: italic;
    margin-bottom: 2rem;
    max-width: 800px;
    line-height: 1.4;
  }

  .testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .testimonial-name {
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.05em;
  }

  .testimonial-company {
    font-size: 0.85rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
  }

  .testimonial-nav-btns {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .testimonial-nav-btn {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    display: grid;
    place-content: center;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
  }

  .testimonial-nav-btn:hover {
    color: var(--color-text-primary);
    border-color: var(--color-accent);
    background-color: var(--color-accent-glass);
  }

  .testimonial-nav-btn svg {
    width: 20px;
    height: 20px;
  }

  /* Form Styling */
  .form-group {
    margin-bottom: 1.5rem;
  }

  .form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
  }

  .form-control {
    width: 100%;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 0.9rem 1.2rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
  }

  .form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 1px var(--color-accent-glass);
  }

  textarea.form-control {
    resize: vertical;
    min-height: 120px;
  }

  /* Case Study Grid & Filters */
  .filters-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
  }

  .filter-btn {
    padding: 0.6rem 1.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
  }

  .filter-btn:hover, .filter-btn.active {
    color: var(--color-text-primary);
    border-color: var(--color-accent);
    background-color: var(--color-accent-glass);
  }

  .case-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  @media (min-width: 768px) {
    .case-grid {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  @media (min-width: 1024px) {
    .case-grid {
      grid-template-columns: repeat(3, 1fr);
    }
  }

  .case-card {
    display: flex;
    flex-direction: column;
    height: 100%;
  }

  .case-header {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
  }

  .case-body {
    flex-grow: 1;
  }

  .case-body h3 {
    margin-bottom: 1rem;
    line-height: 1.25;
  }

  .case-body p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
  }

  .case-stats {
    display: flex;
    gap: 1.5rem;
    border-top: 1px solid var(--color-border);
    padding-top: 1.25rem;
    margin-top: auto;
  }

  .case-stat-val {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-accent);
    line-height: 1;
  }

  .case-stat-lbl {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
  }

  /* Footer */
  .footer {
    background-color: var(--color-bg-tertiary);
    border-top: 1px solid var(--color-border);
    padding: var(--space-xl) var(--space-md) var(--space-md);
  }

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

  .footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
  }

  @media (min-width: 768px) {
    .footer-grid {
      grid-template-columns: 2fr repeat(3, 1fr);
    }
  }

  .footer-logo-col p {
    margin-top: 1rem;
    max-width: 320px;
    font-size: 0.95rem;
  }

  .footer-col-title {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    margin-bottom: 1.5rem;
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .footer-link {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
  }

  .footer-link:hover {
    color: var(--color-text-primary);
  }

  .footer-disclaimer {
    font-size: 0.7rem;
    color: var(--color-text-tertiary);
    text-align: center;
    width: 100%;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 0.25rem;
    line-height: 1.5;
  }

  .footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-text-tertiary);
  }

  @media (min-width: 768px) {
    .footer-bottom {
      flex-direction: row;
    }
  }

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

@layer utilities {
  /* Layout utilities */
  .section {
    padding: var(--space-xl) var(--space-md);
    position: relative;
  }

  .hero-section {
    padding-top: 2rem;
    padding-bottom: 3.5rem;
  }

  .container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
  }

  .grid-two {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    align-items: center;
  }

  @media (min-width: 768px) {
    .grid-two {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  .flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .text-center {
    text-align: center;
  }

  .text-right {
    text-align: right;
  }

  .mt-sm { margin-top: var(--space-sm); }
  .mt-md { margin-top: var(--space-md); }
  .mt-lg { margin-top: var(--space-lg); }
  
  .mb-sm { margin-bottom: var(--space-sm); }
  .mb-md { margin-bottom: var(--space-md); }
  .mb-lg { margin-bottom: var(--space-lg); }

  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  /* Scroll reveal animations */
  .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
  }

  .reveal.active {
    opacity: 1;
    transform: translateY(0);
  }

  .reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
  }

  .reveal-left.active {
    opacity: 1;
    transform: translateX(0);
  }

  .reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
  }

  .reveal-right.active {
    opacity: 1;
    transform: translateX(0);
  }

  /* Custom utility for highlighting accent text */
  .text-gold {
    color: var(--color-accent);
  }
}

/* Base keyframe animations */
@keyframes chevron-blink {
  0%, 100% { opacity: 0.15; }
  50%       { opacity: 0.75; }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile responsive menu active state */
@media (max-width: 767px) {
  .hamburger {
    display: flex;
    z-index: 110;
    min-width: 44px;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    margin-left: 0.25rem;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-bg-primary);
    border-left: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: var(--space-lg);
    gap: 2rem;
    z-index: 105;
    transition: right 0.3s ease;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.18);
  }

  .nav-menu .nav-link {
    font-size: 1.1rem;
    font-weight: 600;
  }

  .nav-menu.open {
    right: 0;
  }

  .hamburger.open span:nth-child(1) {
    transform: translateY(17px) rotate(45deg);
  }

  .hamburger.open span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.open span:nth-child(3) {
    transform: translateY(-17px) rotate(-45deg);
  }

  .header-actions .btn {
    display: none;
  }
}

/* Accessibility overrides for reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-delay: -1ms !important;
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    background-attachment: initial !important;
    scroll-behavior: auto !important;
    transition-duration: 0s !important;
    transition-delay: 0s !important;
  }
  .reveal, .reveal-left, .reveal-right {
    opacity: 1 !important;
    transform: none !important;
  }
}

/* Language Toggle */
.lang-toggle {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  display: grid;
  place-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  font-family: var(--font-body);
}

.lang-toggle:hover {
  color: var(--color-text-primary);
  border-color: var(--color-border-hover);
  background-color: var(--color-accent-glass);
}

/* ===========================
   DARK MODE OVERRIDES
=========================== */
html.dark {
  --color-bg-primary: #0d1117;
  --color-bg-secondary: #161b22;
  --color-bg-tertiary: #1c2333;
  --color-text-primary: #e6edf3;
  --color-text-secondary: #8b949e;
  --color-text-tertiary: #6e7681;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(11, 111, 242, 0.4);
  --glass-bg: rgba(22, 27, 34, 0.95);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-shadow: rgba(0, 0, 0, 0.4);
}

html.dark body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
}

html.dark .header {
  background-color: rgba(13, 17, 23, 0.97);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

html.dark .hero-section {
  background: transparent;
}

html.dark .hero-bg-overlay {
  background: linear-gradient(160deg, rgba(10, 14, 28, 0.84) 0%, rgba(13, 17, 23, 0.90) 100%);
}

html.dark .hero-copy h1,
html.dark .hero-copy p,
html.dark .hero-copy-text {
  color: var(--color-text-primary);
}

html.dark .text-gold {
  color: var(--color-accent);
}

html.dark .card-glass {
  background: var(--color-bg-secondary) !important;
  border-color: var(--color-border) !important;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25) !important;
}

html.dark .hero-highlight {
  background: var(--color-bg-secondary) !important;
  border-color: var(--color-border) !important;
}

html.dark .hero-visual-frame {
  background: linear-gradient(180deg, rgba(18, 26, 46, 0.98), rgba(13, 17, 23, 0.98)) !important;
  border-color: rgba(11, 111, 242, 0.18) !important;
}

html.dark .hero-visual-card {
  background: var(--color-bg-secondary) !important;
  border-color: var(--color-border) !important;
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.3) !important;
}

html.dark .hero-video-chip {
  background: rgba(22, 27, 34, 0.97);
  border-color: rgba(255, 255, 255, 0.08);
}

html.dark .btn-secondary {
  background-color: var(--color-bg-secondary) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
  color: var(--color-text-primary) !important;
}

html.dark .btn-secondary:hover {
  background-color: var(--color-bg-tertiary) !important;
  border-color: var(--color-accent) !important;
}

html.dark .nav-menu {
  background-color: var(--color-bg-secondary);
  border-left-color: var(--color-border);
}

html.dark .theme-toggle .moon-icon {
  display: none;
}

html.dark .theme-toggle .sun-icon {
  display: block;
}

html.dark .footer {
  background-color: var(--color-bg-secondary);
  border-top-color: var(--color-border);
}

html.dark .roadmap-content {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border);
}

html.dark .roadmap-indicator {
  background-color: var(--color-bg-secondary);
}

html.dark .filter-btn {
  background-color: var(--color-bg-secondary);
}

html.dark .form-control {
  background-color: var(--color-bg-secondary) !important;
  color: var(--color-text-primary) !important;
  border-color: var(--color-border) !important;
}

html.dark .form-control:focus {
  border-color: var(--color-accent) !important;
}

html.dark .option-card {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border);
}

html.dark .results-breakdown {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-border);
}

/* Dark mode hero visual card */
html.dark .hero-visual-card {
  background: var(--color-bg-secondary) !important;
  border-color: var(--color-border) !important;
}

html.dark .hero-visual-frame {
  background: linear-gradient(180deg, rgba(18, 26, 46, 0.98), rgba(13, 17, 23, 0.98)) !important;
}

/* Dark mode logo — invert to white so it's visible on dark backgrounds */
html.dark .logo-img {
  filter: brightness(0) invert(1);
  opacity: 0.92;
}

/* Dark mode service/process cards */
html.dark .service-card {
  background: var(--color-bg-secondary) !important;
  border-color: var(--color-border) !important;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.25) !important;
}

html.dark .service-card h3 {
  color: var(--color-text-primary);
}

html.dark .service-card p {
  color: var(--color-text-secondary);
}