/* Portfolio Site - Comprehensive UI Design System */
:root {
  /* Colors */
  --background: #000000;
  --text: #FFFFFF;
  --accent: #037351;
  --accent-hover: #048a61;
  --accent-light: rgba(3, 115, 81, 0.2);
  --muted: #9CA3AF;
  --border: #2A2A2A;
  --success: #16A34A;
  --warning: #F59E0B;
  --white: #ffffff;
  --black: #000000;
  --gray-light: #1A1A1A;
  --gray-dark: #0F0F0F;
  --card-bg: #1A1A1A;
  --input-bg: #0F0F0F;
  
  /* Typography */
  --font-family: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-size-base: 16px;
  --line-height: 1.6;
  --h1-size: clamp(40px, 5vw, 48px);
  --h2-size: clamp(28px, 4vw, 32px);
  --h3-size: clamp(20px, 3vw, 22px);
  --h4-size: 18px;
  
  /* Spacing Scale */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 24px;
  --spacing-2xl: 32px;
  --spacing-3xl: 48px;
  --spacing-4xl: 64px;
  
  /* Border Radius */
  --radius: 8px;
  --radius-sm: 4px;
  --radius-lg: 12px;
  --radius-full: 8px;
  
  /* Shadows - Layered for depth */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4), 0 2px 4px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5), 0 4px 6px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6), 0 10px 10px rgba(0, 0, 0, 0.5);
  --shadow-hover: 0 14px 28px rgba(0, 0, 0, 0.7), 0 10px 10px rgba(0, 0, 0, 0.6);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  height: 100%;
  width: 100%;
  scroll-behavior: smooth;
  overflow-x: hidden;
  overscroll-behavior: none;
  -webkit-overflow-scrolling: touch;
}

body {
  font-family: var(--font-family);
  background-color: var(--background);
  color: var(--text);
  line-height: var(--line-height);
  font-size: var(--font-size-base);
  overflow-x: hidden;
  overscroll-behavior: none;
  position: relative;
  -webkit-overflow-scrolling: touch;
  margin: 0;
  padding: 0;
  min-height: 100vh;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-xl);
  position: relative;
  will-change: auto;
}

/* Body scroll lock for mobile menu */
.body-no-scroll {
  overflow: hidden !important;
  position: fixed !important;
  width: 100% !important;
  height: 100% !important;
  touch-action: none !important;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: var(--h1-size); }
h2 { font-size: var(--h2-size); }
h3 { font-size: var(--h3-size); }
h4 { font-size: var(--h4-size); }

a {
  color: var(--text);
  text-decoration: none;
  transition: var(--transition-fast);
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 998;
  display: none;
  opacity: 0;
  transition: opacity 0.6s ease;
  touch-action: none;
  overscroll-behavior: contain;
}

.mobile-menu-overlay.active {
  display: block;
  opacity: 1;
}

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(0, 0, 0, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 1000;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  will-change: transform;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.nav-wrapper {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 0;
  gap: var(--spacing-xl);
  position: relative;
}

.nav-brand {
  flex-shrink: 0;
  min-width: 160px;
}

.nav-brand .brand-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  transition: var(--transition-fast);
}

.nav-brand .brand-link:hover {
  color: var(--accent);
}

.brand-avatar {
  width: 40px;
  height: 40px;
  background: var(--accent);
  color: var(--white);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
}

.brand-avatar-img {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  cursor: pointer;
  transition: var(--transition-base);
  border: 2px solid transparent;
}

.brand-avatar-img:hover {
  border-color: var(--accent);
  transform: scale(1.05);
}

.brand-name {
  font-weight: 600;
  color: var(--white);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  flex: 1;
  justify-content: space-between;
  padding-left: var(--spacing-3xl);
}

.nav-search {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  padding: var(--spacing-sm) var(--spacing-md);
  margin: 0 var(--spacing-xl);
  transition: var(--transition-base);
}

.nav-search:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.3);
}

.nav-search:focus-within {
  border-color: var(--accent);
  background: rgba(3, 115, 81, 0.1);
}

.nav-search input {
  background: transparent;
  border: none;
  color: var(--white);
  outline: none;
  width: 140px;
  font-size: 0.9rem;
  font-family: inherit;
}

.nav-search input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.nav-search button {
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.nav-search button:hover {
  color: var(--white);
}

.nav-socials {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-right: var(--spacing-xl);
}

.social-icon {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.2rem;
  transition: var(--transition-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
}

.social-icon:hover {
  color: var(--white);
  background: rgba(3, 115, 81, 0.2);
  transform: translateY(-2px);
}

.nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-fast);
  position: relative;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--white);
  background: rgba(3, 115, 81, 0.15);
}

.nav-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-cta {
  margin-left: auto;
  flex-shrink: 0;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
  position: relative;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}

/* Responsive Navigation */
@media screen and (max-width: 1700px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    width: 100%;
    max-height: calc(100vh - 70px);
    text-align: center;
    transform: translateY(calc(-100% - 70px));
    transition: transform 0.6s ease-in-out, visibility 0.6s ease-in-out, opacity 0.6s ease-in-out;
    padding: var(--spacing-2xl) var(--spacing-xl);
    gap: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 9999;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    visibility: hidden;
    opacity: 0;
  }

  .nav-menu.active {
    transform: translateY(0);
    visibility: visible;
    opacity: 1;
  }

  .nav-toggle {
    display: flex;
    z-index: 10000;
  }

  .nav-search {
    display: none;
  }

  .nav-search input {
    width: 100%;
  }

  .nav-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    width: 100%;
  }

  .nav-link {
    color: var(--white) !important;
    font-size: 1.1rem;
    padding: var(--spacing-md) var(--spacing-xl);
    display: block;
    width: 100%;
    text-align: center;
    border-radius: var(--radius);
    transition: var(--transition-fast);
  }

  .nav-link:hover {
    background: var(--accent);
    color: var(--white);
  }

  .nav-socials {
    margin: var(--spacing-xl) 0;
    display: flex;
    flex-direction: row;
    justify-content: center;
    gap: var(--spacing-lg);
  }

  .social-icon {
    color: var(--white) !important;
    font-size: 1.4rem;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
  }

  .social-icon:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--white);
  }

  .nav-cta {
    margin: var(--spacing-xl) 0 0 0;
    width: 100%;
  }

  .nav-cta.btn-primary {
    width: 100%;
    max-width: 250px;
    margin: var(--spacing-xl) auto 0;
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.05rem;
  }
}

/* Intermediate desktop screens - REMOVED
   Now using mobile menu for screens up to 1400px
   to prevent cramped navigation on medium-sized screens */

.nav-toggle {
  z-index: 10001;
  position: relative;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: all 0.6s ease;
  display: block;
}

.nav-toggle:hover span {
  background: var(--accent);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

/* Buttons */
.btn-primary, .btn-secondary {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border-radius: var(--radius);
  font-weight: 600;
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(3, 115, 81, 0.3);
}

.nav-cta.btn-primary {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.95rem;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 6px 16px rgba(3, 115, 81, 0.5);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
}

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

.btn-secondary:active {
  transform: translateY(0);
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.1rem;
}

/* Hero Section */
.hero-section {
  padding: 120px 0 var(--spacing-4xl);
  background: var(--background);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: var(--spacing-xl);
}

.hero-title {
  margin-bottom: var(--spacing-xl);
  font-size: clamp(32px, 5vw, 48px);
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--muted);
  margin-bottom: var(--spacing-2xl);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.video-placeholder {
  position: relative;
  background: var(--card-bg);
  border-radius: var(--radius);
  aspect-ratio: 16/9;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}

.video-placeholder video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  background: #000;
}

/* Credibility Strip */
.credibility-strip {
  padding: var(--spacing-2xl) 0;
  border-bottom: 1px solid var(--border);
  background: var(--gray-dark);
}

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

.credibility-label {
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.logo-scroll {
  overflow: hidden;
  position: relative;
}

.logo-track {
  display: flex;
  gap: var(--spacing-3xl);
  animation: scroll-logos 20s linear infinite;
  width: fit-content;
}

.client-logo {
  flex-shrink: 0;
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--card-bg);
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition-base);
  filter: grayscale(100%);
  opacity: 0.7;
  text-decoration: none;
  display: inline-block;
  border: 1px solid var(--border);
}

.client-logo:hover {
  background: var(--accent);
  color: var(--white);
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.05);
  text-decoration: none;
  border-color: var(--accent);
}

@keyframes scroll-logos {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Metrics Marquee */
.metrics-marquee {
  padding: var(--spacing-xl) 0;
  background: var(--gray-dark);
  overflow: hidden;
  width: 100%;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.marquee-container {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  gap: var(--spacing-xl);
  animation: marquee 40s linear infinite;
  width: max-content;
  padding-right: var(--spacing-xl);
}

.marquee-track:hover {
  animation-play-state: paused;
}

.metric-pill {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: var(--accent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  white-space: nowrap;
  color: var(--white);
}

.metric-icon {
  font-size: 1.2rem;
}

.metric-text {
  font-weight: 600;
  color: var(--white);
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Featured Projects */
.featured-projects {
  padding: var(--spacing-4xl) 0;
  background: var(--background);
}

.section-title {
  font-size: var(--h2-size);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-3xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-2xl);
  align-items: stretch;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition-base);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(3, 115, 81, 0.4);
  border-color: var(--accent);
  background: rgba(3, 115, 81, 0.05);
}

.project-card:hover .project-link {
  opacity: 1;
  transform: translateX(4px);
}

.project-thumbnail {
  position: relative;
  height: 200px;
  background: var(--gray-dark);
  overflow: hidden;
}

.project-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.metric-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: var(--spacing-md);
}

.project-content {
  padding: var(--spacing-xl);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.project-tags {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-md);
}

.tag {
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--gray-dark);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--muted);
  border: 1px solid var(--border);
}

.project-outcome {
  color: var(--muted);
  margin-bottom: var(--spacing-lg);
  line-height: 1.5;
  flex-grow: 1;
}

.project-link {
  color: var(--text);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: var(--transition-base);
  opacity: 0.8;
}

.project-link:hover {
  color: var(--accent);
  gap: var(--spacing-sm);
}

/* Testimonials */
.testimonials {
  padding: var(--spacing-4xl) 0;
  background: var(--gray-dark);
}

.testimonial-carousel {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.testimonial-track {
  position: relative;
  min-height: 300px;
}

.testimonial-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--border);
  display: none;
  position: absolute;
  width: 100%;
  opacity: 0;
  transform: translateX(20px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.testimonial-card.active {
  display: block;
  opacity: 1;
  transform: translateX(0);
}

.testimonial-quote {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-2xl);
  color: var(--text);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.author-avatar {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  color: var(--white);
}

.author-name {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.author-title {
  color: var(--muted);
  font-size: 0.9rem;
}

.testimonial-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.carousel-prev, .carousel-next {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  color: var(--text);
}

.carousel-prev:hover, .carousel-next:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

.carousel-dots {
  display: flex;
  gap: var(--spacing-sm);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  opacity: 0.5;
}

.dot:hover {
  opacity: 1;
}

.dot.active {
  background: var(--accent);
  width: 24px;
  border-radius: 4px;
  opacity: 1;
}

/* Services Section */
.services {
  padding: var(--spacing-4xl) 0;
  background: var(--background);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-4xl);
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--spacing-2xl);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 8px 20px rgba(3, 115, 81, 0.4);
  border-color: var(--accent);
  background: rgba(3, 115, 81, 0.05);
}

.service-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
}

.service-card h3 {
  margin-bottom: var(--spacing-lg);
}

.service-outcomes {
  list-style: none;
  margin-bottom: var(--spacing-lg);
}

.service-outcomes li {
  padding-left: var(--spacing-xl);
  position: relative;
  margin-bottom: var(--spacing-sm);
  color: var(--muted);
  line-height: 1.5;
}

.service-outcomes li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success);
  font-weight: bold;
}

.service-timeline {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

/* Process Timeline */
.process-section {
  padding-top: var(--spacing-3xl);
}

.process-title {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.process-timeline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

.process-step {
  text-align: center;
  flex: 1;
  position: relative;
  z-index: 2;
}

.step-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.process-step h4 {
  margin-bottom: var(--spacing-sm);
}

.process-step p {
  color: var(--muted);
  font-size: 0.9rem;
  max-width: 150px;
  margin: 0 auto;
}

.process-connector {
  position: absolute;
  top: 30px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  z-index: 1;
}

/* Content Platforms */
.content-platforms {
  padding: var(--spacing-4xl) 0;
  background: var(--gray-dark);
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--spacing-xl);
}

.platform-link {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--spacing-2xl) var(--spacing-lg);
  text-align: center;
  transition: var(--transition-base);
  display: block;
}

.platform-link:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 8px 20px rgba(3, 115, 81, 0.4);
  border-color: var(--accent);
  background: rgba(3, 115, 81, 0.1);
}

.platform-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.platform-icon {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.platform-link h4 {
  margin-bottom: var(--spacing-xs);
  font-size: 1rem;
}

.platform-link p {
  color: var(--muted);
  font-size: 0.85rem;
}

/* Contact Section */
.contact-section {
  padding: var(--spacing-4xl) 0;
  background: var(--background);
}

.contact-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-3xl);
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

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

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: var(--spacing-md);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition-fast);
  background: var(--input-bg);
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(3, 115, 81, 0.3);
}

.form-group input:invalid,
.form-group textarea:invalid {
  border-color: var(--warning);
}

.form-group input:valid:not(:placeholder-shown),
.form-group textarea:valid:not(:placeholder-shown) {
  border-color: var(--success);
}

.form-group .invalid {
  border-color: var(--warning);
  animation: shake 0.3s ease;
}

.form-group .valid {
  border-color: var(--success);
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
  border: 1px solid var(--border);
}

.contact-card h3 {
  margin-bottom: var(--spacing-lg);
}

.quick-actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.action-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm);
  transition: var(--transition-fast);
}

.action-link:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.action-icon {
  font-size: 1.2rem;
}

/* Newsletter */
.newsletter {
  padding: var(--spacing-3xl) 0;
  background: var(--gray-dark);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.newsletter-box {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter-box h3 {
  margin-bottom: var(--spacing-sm);
}

.newsletter-box p {
  color: var(--muted);
  margin-bottom: var(--spacing-xl);
}

.newsletter-form {
  display: flex;
  gap: var(--spacing-md);
  max-width: 400px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: var(--spacing-md);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  background: var(--input-bg);
  color: var(--text);
}

.newsletter-form input:focus {
  outline: none;
  border-color: var(--accent);
}

/* Footer */
.footer {
  background: var(--gray-dark);
  color: var(--white);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

.footer-column h4 {
  margin-bottom: var(--spacing-lg);
  font-size: 1rem;
}

.footer-column p {
  opacity: 0.8;
  line-height: 1.6;
}

.footer-column ul {
  list-style: none;
}

.footer-column ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-column a {
  color: var(--white);
  opacity: 0.8;
  transition: var(--transition-fast);
}

.footer-column a:hover {
  opacity: 1;
  color: var(--accent);
}

.social-links {
  display: flex;
  gap: var(--spacing-md);
  font-size: 1.5rem;
}

.footer-bottom {
  padding-top: var(--spacing-2xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  opacity: 0.6;
}

.footer-links {
  display: flex;
  gap: var(--spacing-xl);
}

.footer-links a {
  color: var(--white);
  opacity: 0.6;
  transition: var(--transition-fast);
}

.footer-links a:hover {
  opacity: 1;
}

/* Floating CTA */
.floating-cta {
  position: fixed;
  bottom: var(--spacing-2xl);
  right: var(--spacing-2xl);
  z-index: 999;
}

.floating-button {
  background: var(--accent);
  border: none;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: var(--transition-base);
}

.floating-button:hover {
  transform: scale(1.1) rotate(90deg);
  box-shadow: var(--shadow-hover);
  background: var(--accent-hover);
}

.floating-button:active {
  transform: scale(0.95);
}

.floating-icon {
  font-size: 1.5rem;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.6s ease-out;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  /* Navigation Mobile - Already styled in the 1024px breakpoint */
  .navbar {
    padding: 0 var(--spacing-lg);
  }
  
  .nav-wrapper {
    padding: var(--spacing-md) 0;
  }
  
  .nav-brand .brand-link {
    font-size: 1rem;
  }
  
  .brand-avatar,
  .brand-avatar-img {
    width: 36px;
    height: 36px;
  }
  
  /* Hero Mobile */
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .hero-title {
    font-size: 32px;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  /* Projects Grid Mobile */
  .projects-grid {
    grid-template-columns: 1fr;
  }
  
  /* Services Grid Mobile */
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  /* Process Timeline Mobile */
  .process-timeline {
    flex-direction: column;
    gap: var(--spacing-2xl);
  }
  
  .process-connector {
    display: none;
  }
  
  /* Contact Grid Mobile */
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .contact-form {
    grid-template-columns: 1fr;
  }
  
  /* Footer Mobile */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-lg);
    text-align: center;
  }
  
  /* Floating CTA Mobile */
  .floating-cta {
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-lg);
  }
  
  /* Mobile Navigation Adjustments */
  .navbar {
    background: #000000;
  }
  
  .nav-menu {
    top: 60px;
    height: calc(100vh - 60px);
  }
  
  .nav-wrapper {
    padding: var(--spacing-md) 0;
  }
  
  .nav-links {
    padding: var(--spacing-lg) 0;
  }
  
  .nav-link {
    font-size: 1rem;
    padding: var(--spacing-md);
  }
  
  .social-icon {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
  
  .nav-cta.btn-primary {
    font-size: 1rem;
    max-width: 200px;
  }
  
  .hero-title {
    font-size: 28px;
  }
  
  .section-title {
    font-size: 24px;
  }
  
  .platforms-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .newsletter-form {
    flex-direction: column;
  }
}

/* Accessibility */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

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

/* Skip to content link */
.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: var(--text);
  padding: var(--spacing-sm) var(--spacing-lg);
  z-index: 10002;
  text-decoration: none;
  border-radius: var(--radius);
}

.skip-to-content:focus {
  top: var(--spacing-sm);
  left: var(--spacing-sm);
}

/* Additional Mobile Menu Fixes */
@media screen and (max-width: 1024px) {
  /* Ensure body doesn't scroll when menu is open */
  body.menu-open {
    overflow: hidden;
  }
  
  /* Improve nav link interactions */
  .nav-links {
    padding: var(--spacing-xl) 0;
  }
  
  .nav-link {
    position: relative;
    overflow: hidden;
  }
  
  .nav-link::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
  }
  
  .nav-link:active::after {
    width: 300px;
    height: 300px;
  }
  
  /* Ensure CTA button is prominent */
  .nav-cta.btn-primary {
    box-shadow: 0 4px 15px rgba(3, 115, 81, 0.4);
    background: var(--gradient-accent);
  }
  
  .nav-cta.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(3, 115, 81, 0.6);
  }
}

/* Loading states */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loading {
  animation: pulse 2s ease infinite;
}

/* Smooth transitions for all interactive elements */
a, button, input, textarea, select {
  transition: all var(--transition-fast);
}

/* Better focus states globally */
*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ===== CASE STUDY STYLES ===== */

/* Case Study Design Tokens */
:root {
  --gradient-hero: radial-gradient(circle at center, rgba(3, 115, 81, 0.1), transparent);
  --gradient-accent: linear-gradient(135deg, var(--accent), var(--accent-hover));
  --glow-accent: 0 0 40px rgba(3, 115, 81, 0.3);
  --section-alt: #0A0A0A;
  --card-surface: #141414;
}

/* Reading Progress Bar */
.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  z-index: 1001;
}

.reading-progress-bar {
  height: 100%;
  background: var(--gradient-accent);
  transition: width 0.2s ease-out;
  box-shadow: 0 0 10px var(--accent);
}

/* Case Study Hero Section */
.case-hero {
  position: relative;
  padding: calc(var(--spacing-4xl) + 80px) 0 var(--spacing-4xl);
  overflow: hidden;
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.case-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--gradient-hero);
  opacity: 0.6;
  animation: pulse 4s ease-in-out infinite alternate;
}

@keyframes pulse {
  from { opacity: 0.4; }
  to { opacity: 0.7; }
}

.case-hero .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.overline-badge {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  padding: var(--spacing-sm) var(--spacing-lg);
  background: rgba(3, 115, 81, 0.1);
  border: 1px solid rgba(3, 115, 81, 0.3);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.6s ease-out;
}

.case-hero h1 {
  font-size: clamp(48px, 7vw, 80px);
  font-weight: 800;
  margin-bottom: var(--spacing-xl);
  background: linear-gradient(135deg, var(--white) 0%, var(--muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: fadeInUp 0.8s ease-out 0.1s both;
}

.case-hero .lead {
  font-size: 1.25rem;
  color: var(--muted);
  margin-bottom: var(--spacing-3xl);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* Stat Chips */
.stat-chips {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.kpi-chip {
  background: var(--card-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-lg);
  text-align: center;
  min-width: 150px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-base);
}

.kpi-chip:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--glow-accent);
}

.kpi-chip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.kpi-chip:hover::before {
  transform: scaleX(1);
}

.kpi-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--spacing-xs);
}

.kpi-label {
  display: block;
  font-size: 0.875rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Sticky TOC */
.toc-sticky {
  position: fixed;
  left: var(--spacing-xl);
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  max-width: 200px;
}

.toc-sticky nav {
  background: var(--card-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
}

.toc-sticky h4 {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: var(--spacing-lg);
}

.toc-sticky a {
  display: block;
  padding: var(--spacing-sm) var(--spacing-md);
  color: var(--muted);
  border-left: 2px solid transparent;
  margin-left: calc(-1 * var(--spacing-md));
  transition: var(--transition-fast);
  font-size: 0.9rem;
}

.toc-sticky a:hover {
  color: var(--white);
  background: rgba(3, 115, 81, 0.1);
  border-radius: var(--radius-sm);
}

.toc-sticky a.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(3, 115, 81, 0.1);
}

/* Content Sections */
.section-alt {
  background: var(--section-alt);
  padding: var(--spacing-4xl) 0;
}

.case-section {
  padding: var(--spacing-4xl) 0;
  position: relative;
}

.section-header {
  margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
  font-size: clamp(32px, 4vw, 40px);
  margin-bottom: var(--spacing-lg);
}

.section-header p {
  color: var(--muted);
  font-size: 1.125rem;
  max-width: 700px;
}

/* Two Column Grid */
.two-column-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
}

/* Challenge & Solution Cards */
.challenge-cards, .solution-cards {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.challenge-card, .solution-card {
  background: var(--card-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.challenge-card:hover, .solution-card:hover {
  transform: translateX(4px);
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(3, 115, 81, 0.2);
}

.card-icon {
  width: 40px;
  height: 40px;
  background: rgba(3, 115, 81, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
}

.solution-card .step-number {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 32px;
  height: 32px;
  background: var(--gradient-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--white);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--white);
}

.card-description {
  color: var(--muted);
  line-height: 1.6;
}

/* KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.kpi-card {
  background: var(--card-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  position: relative;
  overflow: hidden;
  transition: var(--transition-base);
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-accent);
}

.kpi-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(3, 115, 81, 0.3);
}

.kpi-metric {
  font-size: 3rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: var(--spacing-sm);
  line-height: 1;
}

.kpi-delta {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: rgba(22, 163, 74, 0.1);
  color: var(--success);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
}

.kpi-delta.positive {
  background: rgba(22, 163, 74, 0.1);
  color: var(--success);
}

.kpi-delta.negative {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.kpi-title {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: var(--spacing-sm);
}

.kpi-description {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Comparison Bars */
.comparison-bars {
  background: var(--card-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-2xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.comparison-item {
  margin-bottom: var(--spacing-2xl);
}

.comparison-item:last-child {
  margin-bottom: 0;
}

.comparison-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--spacing-sm);
}

.comparison-title {
  font-weight: 600;
  color: var(--white);
}

.comparison-value {
  color: var(--accent);
  font-weight: 700;
}

.comparison-bar-track {
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.comparison-bar-fill {
  height: 100%;
  background: var(--gradient-accent);
  border-radius: var(--radius-full);
  transition: width 1s ease-out;
  position: relative;
}

.comparison-bar-fill::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 20px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3));
  animation: shimmer 2s infinite;
}

@keyframes shimmer {
  0% { opacity: 0; }
  50% { opacity: 1; }
  100% { opacity: 0; }
}

/* Timeline */
.solution-timeline {
  position: relative;
  padding-left: var(--spacing-3xl);
}

.solution-timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-3xl);
}

.timeline-badge {
  position: absolute;
  left: calc(-1 * var(--spacing-3xl) + 4px);
  width: 32px;
  height: 32px;
  background: var(--card-surface);
  border: 2px solid var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.875rem;
  color: var(--accent);
}

.timeline-content {
  background: var(--card-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  transition: var(--transition-base);
}

.timeline-content:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 20px rgba(3, 115, 81, 0.2);
}

/* Takeaway Accordion */
.takeaway-grid {
  display: grid;
  gap: var(--spacing-lg);
  max-width: 800px;
  margin: 0 auto;
}

.takeaway-card {
  background: var(--card-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-base);
}

.takeaway-card.expanded {
  border-color: var(--accent);
  box-shadow: 0 4px 20px rgba(3, 115, 81, 0.3);
}

.takeaway-header {
  padding: var(--spacing-xl);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  transition: var(--transition-fast);
}

.takeaway-header:hover {
  background: rgba(3, 115, 81, 0.05);
}

.takeaway-icon {
  width: 40px;
  height: 40px;
  background: rgba(3, 115, 81, 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.takeaway-title {
  flex: 1;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
}

.takeaway-toggle {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
}

.takeaway-card.expanded .takeaway-toggle {
  transform: rotate(180deg);
}

.takeaway-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.takeaway-card.expanded .takeaway-content {
  max-height: 500px;
}

.takeaway-body {
  padding: 0 var(--spacing-xl) var(--spacing-xl);
  color: var(--muted);
  line-height: 1.6;
}

/* Case Study CTA */
.case-cta {
  padding: var(--spacing-4xl) 0;
  text-align: center;
  background: var(--section-alt);
}

.case-cta h2 {
  font-size: clamp(32px, 4vw, 40px);
  margin-bottom: var(--spacing-lg);
}

.case-cta p {
  color: var(--muted);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-2xl);
  right: var(--spacing-2xl);
  width: 48px;
  height: 48px;
  background: var(--card-surface);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-base);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 4px 20px rgba(3, 115, 81, 0.4);
}

/* Mobile Responsive Case Study */
@media (max-width: 1280px) {
  .toc-sticky {
    display: none;
  }
  
  .case-section .container {
    max-width: 100%;
    padding: 0 var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  .case-hero {
    min-height: 60vh;
    padding: calc(var(--spacing-3xl) + 80px) 0 var(--spacing-3xl);
  }
  
  .case-hero h1 {
    font-size: clamp(32px, 8vw, 48px);
  }
  
  .stat-chips {
    flex-direction: column;
    align-items: stretch;
  }
  
  .kpi-chip {
    min-width: auto;
  }
  
  .two-column-grid {
    grid-template-columns: 1fr;
  }
  
  .kpi-grid {
    grid-template-columns: 1fr;
  }
  
  .solution-timeline {
    padding-left: var(--spacing-2xl);
  }
  
  .timeline-badge {
    left: calc(-1 * var(--spacing-2xl) + 4px);
  }
}

@media (max-width: 480px) {
  .case-hero h1 {
    font-size: 28px;
  }
  
  .kpi-metric {
    font-size: 2rem;
  }
  
  .section-header h2 {
    font-size: 24px;
  }
}