/**
 * Modern CSS with Cutting-Edge Features
 * - CSS Layers for cascade control
 * - Container Queries for component-level responsiveness
 * - Modern layout with Grid and Flexbox
 * - View Transitions API ready
 * - CSS Nesting
 * - Advanced animations
 */

/* ==================== CSS LAYERS ==================== */
@layer reset, base, components, utilities;

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

  html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    scroll-behavior: smooth;
  }

  @media (prefers-reduced-motion: reduce) {
    html {
      scroll-behavior: auto;
    }
  }

  body {
    min-height: 100vh;
    min-height: 100dvh; /* Dynamic viewport height */
    line-height: var(--line-height-normal);
  }

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

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

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

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

  ul[role='list'],
  ol[role='list'] {
    list-style: none;
  }
}

/* ==================== BASE LAYER ==================== */
@layer base {
  body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-primary);
    background-color: var(--color-surface-primary);
    transition: color var(--duration-normal) var(--ease-out),
                background-color var(--duration-normal) var(--ease-out);
  }

  /* View Transitions API Support */
  @view-transition {
    navigation: auto;
  }

  /* Selection styles */
  ::selection {
    background-color: var(--color-brand-primary);
    color: var(--color-text-inverse);
  }

  /* Focus visible styles */
  :focus-visible {
    outline: 2px solid var(--color-brand-primary);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
  }

  /* Skip link for accessibility */
  .skip-link {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: var(--space-3) var(--space-6);
    background-color: var(--color-brand-primary);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    z-index: var(--z-index-tooltip);
    transform: translateY(-200%);
    transition: transform var(--duration-normal) var(--ease-out);

    &:focus {
      transform: translateY(0);
    }
  }
}

/* ==================== COMPONENTS LAYER ==================== */
@layer components {

  /* Container */
  .container {
    width: min(100% - var(--space-8), var(--container-xl));
    margin-inline: auto;
    container-type: inline-size;
  }

  /* Header / Navigation */
  .site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-index-sticky);
    background-color: var(--color-surface-primary);
    backdrop-filter: blur(10px);
    background-color: oklch(from var(--color-surface-primary) l c h / 0.95);

    @supports not (backdrop-filter: blur(10px)) {
      background-color: var(--color-surface-primary);
    }
  }

  .nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-8);
    width: min(100% - var(--space-8), var(--container-2xl));
    margin-inline: auto;
    padding-block: var(--space-6);
  }

  .brand-logo {
    display: block;
    height: 100px;
    width: auto;
    transition: transform var(--duration-normal) var(--ease-out);
    object-fit: cover;
    object-position: center;
    /* Clip the extra borders/stripe using clip-path */
    clip-path: inset(8% 2% 18% 2%);

    &:hover {
      transform: translateY(-2px);
    }

    @media (max-width: 768px) {
      height: 75px;
    }
  }

  .brand-link {
    display: flex;
    align-items: center;
  }

  /* Navigation Menu */
  .nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;

    a {
      font-size: var(--font-size-sm);
      font-weight: var(--font-weight-medium);
      color: var(--color-text-secondary);
      transition: color var(--duration-fast) var(--ease-out);
      position: relative;

      &::after {
        content: '';
        position: absolute;
        bottom: -4px;
        left: 0;
        width: 0;
        height: 2px;
        background-color: var(--color-brand-primary);
        transition: width var(--duration-normal) var(--ease-out);
      }

      &:hover {
        color: var(--color-text-primary);

        &::after {
          width: 100%;
        }
      }
    }

    .nav-cta {
      padding: var(--space-2) var(--space-5);
      background-color: var(--color-brand-primary);
      color: var(--color-text-inverse);
      border-radius: var(--radius-full);
      font-weight: var(--font-weight-semibold);

      &::after {
        display: none;
      }

      &:hover {
        background-color: oklch(from var(--color-brand-primary) calc(l - 0.1) c h);
        transform: translateY(-2px);
      }
    }
  }

  /* Mobile Navigation Toggle */
  .nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    transition: background-color var(--duration-fast) var(--ease-out);

    &:hover {
      background-color: var(--color-surface-secondary);
    }

    @media (max-width: 768px) {
      display: flex;
    }
  }

  .hamburger {
    position: relative;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    transition: background-color var(--duration-fast) var(--ease-out);

    &::before,
    &::after {
      content: '';
      position: absolute;
      width: 24px;
      height: 2px;
      background-color: var(--color-text-primary);
      transition: transform var(--duration-normal) var(--ease-out);
    }

    &::before {
      top: -8px;
    }

    &::after {
      bottom: -8px;
    }
  }

  .nav-toggle[aria-expanded="true"] .hamburger {
    background-color: transparent;

    &::before {
      transform: translateY(8px) rotate(45deg);
    }

    &::after {
      transform: translateY(-8px) rotate(-45deg);
    }
  }

  /* Theme Toggle */
  .theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    transition: all var(--duration-fast) var(--ease-out);

    &:hover {
      background-color: var(--color-surface-secondary);
      color: var(--color-text-primary);
    }

    svg {
      transition: transform var(--duration-normal) var(--ease-out);
    }

    .moon-icon {
      display: none;
    }
  }

  [data-theme="dark"] .theme-toggle {
    .sun-icon {
      display: none;
    }

    .moon-icon {
      display: block;
    }
  }

  .nav-controls {
    display: flex;
    align-items: center;
    gap: var(--space-3);
  }

  .language-switcher {
    position: relative;
  }

  .language-button {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    background-color: transparent;
    border: var(--border-width-thin) solid transparent;
    transition: all var(--duration-fast) var(--ease-out);
    cursor: pointer;
  }

  .language-button:hover,
  .language-switcher.is-open .language-button {
    color: var(--color-text-primary);
    background-color: var(--color-surface-secondary);
    border-color: var(--color-border-subtle);
  }

  .language-chevron {
    transition: transform var(--duration-fast) var(--ease-out);
  }

  .language-switcher.is-open .language-chevron {
    transform: rotate(180deg);
  }

  .language-current {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
  }

  .language-menu {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    list-style: none;
    margin: 0;
    padding: var(--space-2);
    display: none;
    min-width: 180px;
    border-radius: var(--radius-lg);
    border: var(--border-width-thin) solid var(--color-border-subtle);
    background-color: var(--color-surface-primary);
    box-shadow: var(--shadow-lg);
    z-index: 20;
  }

  .language-switcher.is-open .language-menu {
    display: grid;
    gap: var(--space-1);
  }

  .language-menu a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    transition: background-color var(--duration-fast) var(--ease-out),
                color var(--duration-fast) var(--ease-out);
  }

  .language-menu a:hover {
    background-color: var(--color-surface-secondary);
    color: var(--color-text-primary);
  }

  .language-menu .is-current {
    font-weight: var(--font-weight-semibold);
    color: var(--color-brand-primary);
  }

  .language-menu .is-current:hover {
    background-color: transparent;
  }

  .hidden {
    display: none !important;
  }

  /* Hero Section */
  .hero {
    position: relative;
    min-height: max(600px, 80vh);
    min-height: max(600px, 80dvh);
    display: grid;
    place-items: center;
    padding-block: var(--space-section);
    overflow: hidden;
    isolation: isolate;
  }

  .hero-container {
    position: relative;
    z-index: 1;
    width: min(100% - var(--space-8), var(--container-xl));
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-12);
  }

  .hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-8);
  }

  .hero-brand {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    letter-spacing: var(--letter-spacing-wider);
    color: var(--color-brand-primary);
    text-transform: uppercase;
    margin-bottom: var(--space-2);
    animation: fade-in var(--duration-slower) var(--ease-out) backwards;
  }

  .hero-title {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    max-width: 20ch;

    .title-line {
      display: block;
      animation: slide-up var(--duration-slower) var(--ease-out) backwards;

      &:nth-child(1) {
        animation-delay: 100ms;
      }

      &:nth-child(2) {
        animation-delay: 200ms;
      }

      &:nth-child(3) {
        animation-delay: 300ms;
      }
    }
  }

  .gradient-text {
    color: var(--color-brand-accent);
    text-shadow: 0 2px 4px rgba(255, 189, 3, 0.2);
  }

  @keyframes gradient-shift {
    0%, 100% {
      background-position: 0% center;
    }
    50% {
      background-position: 100% center;
    }
  }

  .hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    animation: fade-in var(--duration-slower) var(--ease-out) 400ms backwards;

    strong {
      color: var(--color-text-primary);
      font-weight: var(--font-weight-semibold);
    }
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
    animation: fade-in var(--duration-slower) var(--ease-out) 500ms backwards;
    margin-bottom: var(--space-16);
  }

  .hero-scroll {
    animation: fade-in var(--duration-slower) var(--ease-out) 800ms backwards;
  }

  .scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);

    .scroll-icon {
      animation: bounce 2s ease-in-out infinite;
    }
  }

  @keyframes bounce {
    0%, 100% {
      transform: translateY(0);
    }
    50% {
      transform: translateY(-8px);
    }
  }

  @keyframes slide-up {
    from {
      opacity: 0;
      transform: translateY(30px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  @keyframes fade-in {
    from {
      opacity: 0;
    }
    to {
      opacity: 1;
    }
  }

  /* Hero Background */
  .hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
  }

  .gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;

    &.orb-1 {
      width: 600px;
      height: 600px;
      top: -300px;
      right: -100px;
      background: radial-gradient(circle, rgba(26, 53, 94, 0.15), transparent);
      animation-delay: 0s;
    }

    &.orb-2 {
      width: 500px;
      height: 500px;
      bottom: -200px;
      left: -100px;
      background: radial-gradient(circle, rgba(42, 74, 124, 0.15), transparent);
      animation-delay: 5s;
    }

    &.orb-3 {
      width: 400px;
      height: 400px;
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%);
      background: radial-gradient(circle, rgba(255, 189, 3, 0.15), transparent);
      animation-delay: 10s;
    }
  }

  @keyframes float {
    0%, 100% {
      transform: translate(0, 0) scale(1);
    }
    33% {
      transform: translate(30px, -30px) scale(1.1);
    }
    66% {
      transform: translate(-20px, 20px) scale(0.9);
    }
  }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    transition: all var(--duration-normal) var(--ease-out);
    white-space: nowrap;

    &:focus-visible {
      outline-offset: 4px;
    }

    .btn-icon {
      transition: transform var(--duration-normal) var(--ease-out);
    }

    &:hover .btn-icon {
      transform: translateX(4px);
    }
  }

  .btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: var(--font-size-lg);
  }

  .btn-primary {
    background-color: var(--color-brand-accent);
    color: var(--color-brand-primary);
    box-shadow: var(--shadow-md);
    font-weight: var(--font-weight-bold);

    &:hover {
      background-color: var(--color-brand-accent-hover);
      box-shadow: var(--shadow-lg);
      transform: translateY(-2px);
    }

    &:active {
      transform: translateY(0);
      box-shadow: var(--shadow-sm);
    }
  }

  .btn-secondary {
    background-color: var(--color-surface-secondary);
    color: var(--color-text-primary);
    border: var(--border-width-default) solid var(--color-border-default);

    &:hover {
      background-color: var(--color-surface-tertiary);
      border-color: var(--color-border-strong);
      transform: translateY(-2px);
    }
  }

  .btn-outline {
    background-color: transparent;
    color: var(--color-text-primary);
    border: var(--border-width-default) solid var(--color-border-default);

    &:hover {
      background-color: var(--color-surface-secondary);
      border-color: var(--color-brand-primary);
      color: var(--color-brand-primary);
    }
  }

  /* Credibility Strip */
  .credibility-strip {
    padding-block: var(--space-12);
    background-color: var(--color-surface-secondary);
    border-block: var(--border-width-thin) solid var(--color-border-subtle);
  }

  .credibility-label {
    text-align: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    color: var(--color-text-tertiary);
    margin-bottom: var(--space-6);
  }

  .credibility-logos {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: var(--space-4) var(--space-8);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
  }

  .logo-divider {
    color: var(--color-text-tertiary);
    user-select: none;
  }

  /* Section Utilities */
  .center {
    text-align: center;
  }

  .section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-top: var(--space-4);
    margin-bottom: var(--space-16);
  }

  /* Our Approach Section */
  .approach-section {
    padding-block: var(--space-section);
    background-color: var(--color-surface-secondary);
  }

  .approach-steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: var(--space-8);
    align-items: center;
    max-width: var(--container-xl);

    @container (max-width: 1024px) {
      grid-template-columns: 1fr;
      gap: var(--space-12);
    }
  }

  .approach-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-4);
    padding: var(--space-8);
  }

  .step-number {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-text-inverse);
    background-color: var(--color-brand-accent);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
  }

  .step-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-primary);
  }

  .step-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    max-width: 30ch;
  }

  .approach-arrow {
    color: var(--color-brand-accent);
    display: flex;
    align-items: center;
    justify-content: center;

    @container (max-width: 1024px) {
      transform: rotate(90deg);
    }
  }

  /* Services Section */
  .services-section {
    padding-block: var(--space-section);
  }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);

    @container (min-width: 1024px) {
      grid-template-columns: repeat(2, 1fr);
    }
  }

  .service-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
    padding: var(--space-10);
    background-color: var(--color-surface-secondary);
    border: var(--border-width-thin) solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
    transition: all var(--duration-normal) var(--ease-out);

    &:hover {
      border-color: var(--color-brand-accent);
      box-shadow: var(--shadow-xl);
      transform: translateY(-4px);
    }
  }

  .service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg,
      rgba(26, 53, 94, 0.1),
      rgba(255, 189, 3, 0.1)
    );
    border-radius: var(--radius-lg);
    color: var(--color-brand-primary);
  }

  .service-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
  }

  .service-subtitle {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-brand-accent);
  }

  .service-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
  }

  .service-topics {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding-left: var(--space-5);
    list-style: disc;
    list-style-position: outside;

    li {
      font-size: var(--font-size-sm);
      color: var(--color-text-secondary);
    }
  }

  .service-patterns {
    padding: var(--space-4);
    background-color: rgba(255, 189, 3, 0.05);
    border-left: 3px solid var(--color-brand-accent);
    border-radius: var(--radius-sm);

    h4 {
      font-size: var(--font-size-sm);
      font-weight: var(--font-weight-semibold);
      color: var(--color-brand-primary);
      margin-bottom: var(--space-3);
    }

    ul {
      display: flex;
      flex-direction: column;
      gap: var(--space-2);
      list-style: none;
      padding: 0;

      li {
        font-size: var(--font-size-xs);
        color: var(--color-text-secondary);
        line-height: var(--line-height-relaxed);

        strong {
          color: var(--color-text-primary);
        }
      }
    }
  }

  /* Authority Section */
  .authority-section {
    padding-block: var(--space-section);
  }

  .authority-grid {
    display: grid;
    gap: var(--space-16);
    align-items: start;

    @container (min-width: 768px) {
      grid-template-columns: 2fr 1fr;
    }
  }

  .section-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    margin-bottom: var(--space-6);
  }

  .credentials {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-10);
  }

  .credential-badge {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    background-color: rgba(26, 53, 94, 0.1);
    color: var(--color-brand-primary);
    border-radius: var(--radius-full);
    border: var(--border-width-thin) solid rgba(26, 53, 94, 0.2);
  }

  .authority-details {
    display: grid;
    gap: var(--space-8);
  }

  .detail-section {
    h3 {
      font-size: var(--font-size-lg);
      font-weight: var(--font-weight-semibold);
      margin-bottom: var(--space-3);
      color: var(--color-text-primary);
    }

    p, li {
      color: var(--color-text-secondary);
      line-height: var(--line-height-relaxed);
    }
  }

  .detail-list {
    display: grid;
    gap: var(--space-2);
    padding-left: var(--space-5);
    list-style: disc;
    list-style-position: outside;
  }

  .authority-actions {
    margin-top: var(--space-8);
  }

  /* Stats Card */
  .stats-card {
    position: sticky;
    top: calc(var(--space-20) + 60px);
    padding: var(--space-10);
    background: linear-gradient(135deg,
      rgba(26, 53, 94, 0.05),
      rgba(255, 189, 3, 0.05)
    );
    border: var(--border-width-thin) solid var(--color-border-subtle);
    border-radius: var(--radius-2xl);
    display: grid;
    gap: var(--space-8);
  }

  .stat-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }

  .stat-number {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    color: var(--color-brand-accent);
  }

  .stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
  }

  /* Case Study Section */
  .case-study-section {
    padding-block: var(--space-section);
    background: linear-gradient(135deg,
      rgba(26, 53, 94, 0.05),
      rgba(255, 189, 3, 0.05)
    );
  }

  .case-study-content {
    max-width: var(--container-lg);
    margin-inline: auto;
    text-align: center;
  }

  .case-study-label {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    color: var(--color-brand-accent);
    background-color: rgba(255, 189, 3, 0.1);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
  }

  .case-study-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
    margin-bottom: var(--space-12);
  }

  .case-study-steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    gap: var(--space-6);
    align-items: start;
    margin-bottom: var(--space-12);

    @container (max-width: 768px) {
      grid-template-columns: 1fr;
      gap: var(--space-8);
    }
  }

  .case-study-step {
    padding: var(--space-8);
    background-color: var(--color-surface-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: left;
  }

  .step-heading {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-brand-primary);
    margin-bottom: var(--space-3);
  }

  .case-study-arrow {
    font-size: var(--font-size-4xl);
    color: var(--color-brand-accent);
    display: flex;
    align-items: center;
    justify-content: center;

    @container (max-width: 768px) {
      transform: rotate(90deg);
    }
  }

  .case-study-actions {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
  }

  /* Testimonials Section */
  .testimonials-section {
    padding-block: var(--space-section);
  }

  .testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-8);
  }

  .testimonial-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    padding: var(--space-10);
    background-color: var(--color-surface-secondary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    transition: all var(--duration-normal) var(--ease-out);

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

  .testimonial-quote {
    position: relative;

    p {
      font-size: var(--font-size-base);
      line-height: var(--line-height-relaxed);
      color: var(--color-text-secondary);
      font-style: italic;
    }
  }

  .quote-icon {
    color: var(--color-brand-accent);
    opacity: 0.3;
    margin-bottom: var(--space-4);
  }

  .testimonial-author {
    padding-top: var(--space-4);
    border-top: var(--border-width-thin) solid var(--color-border-subtle);
  }

  .author-name {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
  }

  .author-title {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
  }

  /* Resources Section */
  .resources-section {
    padding-block: var(--space-section);
    background-color: var(--color-surface-secondary);
  }

  .resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
  }

  .resource-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding: var(--space-10);
    background-color: var(--color-surface-primary);
    border: var(--border-width-thin) solid var(--color-border-subtle);
    border-radius: var(--radius-xl);
    transition: all var(--duration-normal) var(--ease-out);

    &:hover {
      border-color: var(--color-brand-accent);
      box-shadow: var(--shadow-lg);
      transform: translateY(-4px);
    }

    &.featured {
      grid-column: span 1;

      @container (min-width: 768px) {
        grid-column: 1 / -1;
      }
    }
  }

  .resource-type {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    color: var(--color-brand-primary);
    background-color: rgba(26, 53, 94, 0.1);
    border-radius: var(--radius-sm);
    width: fit-content;
  }

  .resource-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    line-height: var(--line-height-tight);
  }

  .resource-description {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    flex-grow: 1;
  }

  .resource-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
  }

  .resource-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    padding-left: var(--space-5);
    list-style: disc;

    li {
      font-size: var(--font-size-sm);
      color: var(--color-text-secondary);
    }
  }

  /* CTA Section */
  .cta-section {
    padding-block: var(--space-section);
    background: linear-gradient(135deg,
      var(--color-brand-primary),
      rgba(26, 53, 94, 0.8)
    );
    color: var(--color-text-inverse);
  }

  .cta-content {
    max-width: var(--container-md);
    margin-inline: auto;
    text-align: center;
  }

  .cta-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    color: var(--color-text-inverse);
    margin-bottom: var(--space-6);
  }

  .cta-description {
    font-size: var(--font-size-xl);
    line-height: var(--line-height-relaxed);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-10);
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    justify-content: center;
  }

  /* Footer */
  .site-footer {
    background-color: var(--color-surface-secondary);
    border-top: var(--border-width-thin) solid var(--color-brand-accent);
    padding-block: var(--space-section);
    margin-top: var(--space-section);
  }

  .footer-container {
    width: min(100% - var(--space-8), var(--container-xl));
    margin-inline: auto;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-12);
    margin-bottom: var(--space-16);

    @container (max-width: 768px) {
      grid-template-columns: 1fr;
      gap: var(--space-8);
    }
  }

  .footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }

  .footer-heading {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-primary);
    margin-bottom: var(--space-2);
  }

  .footer-tagline {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
  }

  .footer-location {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
  }

  .footer-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wider);
    color: var(--color-text-primary);
    margin-bottom: var(--space-3);
  }

  .footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    list-style: none;

    a {
      font-size: var(--font-size-sm);
      color: var(--color-text-secondary);
      transition: color var(--duration-fast) var(--ease-out);

      &:hover {
        color: var(--color-brand-accent);
      }
    }
  }

  .footer-language {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);

    .current {
      font-weight: var(--font-weight-semibold);
      color: var(--color-text-primary);
    }

    span[aria-hidden="true"] {
      color: var(--color-text-tertiary);
    }
  }

  /* Footer Social */
  .footer-social-section {
    padding-block: var(--space-12);
    border-block: var(--border-width-thin) solid var(--color-border-subtle);
    margin-bottom: var(--space-12);
  }

  .footer-social {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }

  .social-links {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
  }

  .social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-surface-tertiary);
    color: var(--color-text-secondary);
    transition: all var(--duration-normal) var(--ease-out);

    &:hover {
      background-color: var(--color-brand-accent);
      color: var(--color-brand-primary);
      transform: translateY(-2px);
    }

    svg {
      width: 20px;
      height: 20px;
    }
  }

  /* Footer Bottom */
  .footer-bottom {
    padding-top: var(--space-8);
  }

  .footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-4);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);

    @container (max-width: 640px) {
      flex-direction: column;
      text-align: center;
    }
  }

  .footer-copyright {
    color: var(--color-text-tertiary);
  }

  .footer-legal {
    display: flex;
    gap: var(--space-3);
    align-items: center;

    a {
      color: var(--color-text-tertiary);
      transition: color var(--duration-fast) var(--ease-out);

      &:hover {
        color: var(--color-brand-accent);
      }
    }

    span {
      color: var(--color-text-tertiary);
    }
  }

  /* Responsive adjustments */
  @media (max-width: 768px) {
    .nav-menu {
      position: fixed;
      top: 60px;
      left: 0;
      right: 0;
      flex-direction: column;
      padding: var(--space-6);
      background-color: var(--color-surface-primary);
      border-bottom: var(--border-width-thin) solid var(--color-border-subtle);
      box-shadow: var(--shadow-lg);
      transform: translateY(-100%);
      opacity: 0;
      transition: transform var(--duration-normal) var(--ease-out),
                  opacity var(--duration-normal) var(--ease-out);
      pointer-events: none;

      .nav-toggle[aria-expanded="true"] ~ & {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
      }
    }

    .nav-controls {
      width: 100%;
      justify-content: center;
      gap: var(--space-4);
    }

    .language-switcher {
      width: 100%;
      max-width: 220px;
    }

    .language-menu {
      right: 50%;
      left: 50%;
      transform: translateX(-50%);
    }

    .hero-title {
      font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
      font-size: var(--font-size-lg);
    }

    .btn-lg {
      padding: var(--space-3) var(--space-6);
      font-size: var(--font-size-base);
    }

    .stats-card {
      position: static;
    }
  }
}

/* ==================== UTILITIES LAYER ==================== */
@layer utilities {
  .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
  }

  @media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
      animation-duration: 0.01ms !important;
      animation-iteration-count: 1 !important;
      transition-duration: 0.01ms !important;
    }
  }

  /* ==================== CONTACT FORM SECTION ==================== */

  .contact-section {
    padding: var(--space-section) 0;
    background: linear-gradient(
      135deg,
      var(--color-surface-primary) 0%,
      var(--color-surface-secondary) 100%
    );
  }

  .contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-16);
    margin-top: var(--space-16);

    @container (max-width: 1024px) {
      grid-template-columns: 1fr;
      gap: var(--space-12);
    }
  }

  /* Contact Info */
  .contact-info {
    background: var(--color-surface-elevated);
    padding: var(--space-12);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    height: fit-content;
  }

  .contact-info-title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-primary);
    margin-bottom: var(--space-4);
  }

  .contact-info-description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--space-8);
  }

  .contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
  }

  .contact-detail {
    display: flex;
    gap: var(--space-4);
    align-items: flex-start;
  }

  .contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-brand-primary), var(--color-brand-secondary));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-inverse);
  }

  .contact-detail h4 {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--space-1);
  }

  .contact-detail p,
  .contact-detail a {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
  }

  .contact-detail a {
    text-decoration: none;
    color: var(--color-brand-primary);
    transition: color var(--duration-fast) var(--ease-out);

    &:hover {
      color: var(--color-brand-accent);
    }
  }

  /* Contact Form */
  .contact-form {
    background: var(--color-surface-elevated);
    padding: var(--space-12);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
  }

  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);

    @container (max-width: 640px) {
      grid-template-columns: 1fr;
    }
  }

  .form-group {
    margin-bottom: var(--space-6);
  }

  .form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--space-2);
  }

  .required {
    color: var(--color-error);
  }

  .form-input,
  .form-textarea {
    width: 100%;
    padding: var(--space-4);
    font-size: var(--font-size-base);
    font-family: var(--font-family-sans);
    color: var(--color-text-primary);
    background: var(--color-surface-primary);
    border: var(--border-width-default) solid var(--color-border-default);
    border-radius: var(--radius-lg);
    transition: all var(--duration-fast) var(--ease-out);

    &:focus {
      outline: none;
      border-color: var(--color-brand-primary);
      box-shadow: 0 0 0 3px oklch(from var(--color-brand-primary) l c h / 0.1);
    }

    &:hover:not(:focus) {
      border-color: var(--color-border-strong);
    }

    &::placeholder {
      color: var(--color-text-tertiary);
    }

    &:invalid:not(:placeholder-shown) {
      border-color: var(--color-error);
    }
  }

  .form-textarea {
    resize: vertical;
    min-height: 150px;
  }

  .form-error {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-error);
    margin-top: var(--space-2);
    min-height: 1.25rem;
  }

  .form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: var(--space-8);
  }

  .btn-loader {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
  }

  .spinner {
    animation: spin 1s linear infinite;
  }

  @keyframes spin {
    from {
      transform: rotate(0deg);
    }
    to {
      transform: rotate(360deg);
    }
  }

  .form-message {
    margin-top: var(--space-6);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    text-align: center;

    &.success {
      background: oklch(from var(--color-success) l c h / 0.1);
      color: var(--color-success);
      border: var(--border-width-thin) solid var(--color-success);
    }

    &.error {
      background: oklch(from var(--color-error) l c h / 0.1);
      color: var(--color-error);
      border: var(--border-width-thin) solid var(--color-error);
    }
  }

  /* Cloudflare Turnstile Styling */
  .cf-turnstile {
    margin: var(--space-4) 0;
  }

  /* ==================== JETBRAINS SECTION ==================== */

  .jetbrains-section {
    padding: var(--space-section) 0;
    background: linear-gradient(
      135deg,
      var(--color-surface-primary) 0%,
      var(--color-surface-secondary) 50%,
      var(--color-surface-primary) 100%
    );
  }

  .jetbrains-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: linear-gradient(135deg, var(--color-brand-primary), var(--color-brand-secondary));
    color: var(--color-text-inverse);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-8);
    width: fit-content;
    box-shadow: var(--shadow-md);

    svg {
      flex-shrink: 0;
    }
  }

  .jetbrains-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    margin-top: var(--space-16);

    @container (max-width: 1024px) {
      grid-template-columns: 1fr;
      gap: var(--space-12);
    }
  }

  .jetbrains-subtitle {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-brand-primary);
    margin-bottom: var(--space-8);
  }

  /* Products List */
  .product-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
  }

  .product-item {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-xl);
    border: var(--border-width-default) solid var(--color-border-subtle);
    transition: all var(--duration-normal) var(--ease-out);

    &:hover {
      transform: translateX(var(--space-2));
      border-color: var(--color-brand-accent);
      box-shadow: var(--shadow-md);
    }

    h4 {
      font-size: var(--font-size-lg);
      font-weight: var(--font-weight-semibold);
      color: var(--color-text-primary);
      margin-bottom: var(--space-1);
    }

    p {
      font-size: var(--font-size-sm);
      color: var(--color-text-secondary);
    }
  }

  .product-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-brand-primary), var(--color-brand-secondary));
    color: var(--color-text-inverse);
    border-radius: var(--radius-lg);
  }

  .product-logo {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;

    img {
      width: 100%;
      height: 100%;
      object-fit: contain;
    }
  }

  /* Benefits List */
  .benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    list-style: none;
    padding: 0;
    margin-bottom: var(--space-10);

    li {
      display: flex;
      gap: var(--space-3);
      align-items: flex-start;

      svg {
        flex-shrink: 0;
        color: var(--color-brand-accent);
        margin-top: var(--space-1);
      }

      strong {
        display: block;
        font-size: var(--font-size-base);
        font-weight: var(--font-weight-semibold);
        color: var(--color-text-primary);
        margin-bottom: var(--space-1);
      }

      p {
        font-size: var(--font-size-sm);
        color: var(--color-text-secondary);
        line-height: var(--line-height-relaxed);
      }
    }
  }

  /* JetBrains CTA */
  .jetbrains-cta {
    padding: var(--space-8);
    background: var(--color-surface-elevated);
    border-radius: var(--radius-2xl);
    border: var(--border-width-default) solid var(--color-border-subtle);
    box-shadow: var(--shadow-md);

    .cta-help {
      font-size: var(--font-size-xl);
      font-weight: var(--font-weight-bold);
      color: var(--color-brand-primary);
      margin-bottom: var(--space-3);
    }

    .cta-description {
      font-size: var(--font-size-base);
      color: var(--color-text-secondary);
      line-height: var(--line-height-relaxed);
      margin-bottom: var(--space-6);
    }

    .cta-buttons {
      display: flex;
      gap: var(--space-4);
      flex-wrap: wrap;

      @container (max-width: 640px) {
        flex-direction: column;

        .btn {
          width: 100%;
          justify-content: center;
        }
      }
    }
  }

  /* Highlight badge in credibility strip */
  .credibility-logos .logo-item.highlight {
    color: var(--color-brand-accent);
    font-weight: var(--font-weight-bold);
  }

  /* ==================== EMAIL PROTECTION ==================== */

  .email-link {
    cursor: pointer;
    user-select: none;
  }

  .email-reveal {
    font-style: italic;
    opacity: 0.8;
  }
}