/* ========================================
   BLACK LAB AGENCY - Main Stylesheet
   Modern, sleek agency design
   ======================================== */

/* CSS Variables */
:root {
  --color-black: #0d0d0d;
  --color-white: #f8f7f5;
  --color-gray-100: #f5f5f5;
  --color-gray-200: #e5e5e5;
  --color-gray-300: #d4d4d4;
  --color-gray-400: #a3a3a3;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-700: #404040;
  --color-gray-800: #262626;
  --color-gray-900: #171717;

  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Syne', sans-serif;

  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s ease;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 8rem;

  --container-max: 1200px;
  --container-wide: 1400px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-white);
  color: var(--color-gray-900);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-black);
}

h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.hero h1 {
  font-family: 'homage-condensed', sans-serif;
  font-size: clamp(5rem, 15vw, 12rem);
  font-weight: 900;
  font-style: normal;
  letter-spacing: 0.03em;
  line-height: 1.1;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-lg);
  text-transform: uppercase;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h4 {
  font-size: clamp(1.25rem, 2vw, 1.75rem);
}

p {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}

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

/* Container */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-wide {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(248, 247, 245, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-200);
  transition: var(--transition-smooth);
}

.header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-black);
}

.logo-img {
  height: 70px;
  width: auto;
}

/* Show light logo, hide dark logo in light mode */
.logo-light {
  display: block;
}

.logo-dark {
  display: none;
  height: 85px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--color-gray-700);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-black);
  transition: var(--transition-smooth);
}

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

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  width: 25px;
  height: 2px;
  background: var(--color-black);
  transition: var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  font-size: 1rem;
  text-align: center;
}

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

.btn-primary:hover {
  background: var(--color-gray-900);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

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

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

.btn-large {
  padding: 1.25rem 2.5rem;
  font-size: 1.125rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-2xl) 0 var(--spacing-xl);
  background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-white) 100%);
  position: relative;
  overflow: hidden;
}

/* Animated gradient orbs */
.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
  z-index: 0;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.04) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 25s ease-in-out infinite reverse;
  z-index: 0;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-subtitle {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-gray-700);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
  text-align: center;
}

.hero-description {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-md);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-lg);
}

/* Sections */
.section {
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

#industries {
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
}

.section-dark {
  background: var(--color-black);
  color: var(--color-white);
  position: relative;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

.section-dark p {
  color: var(--color-gray-300);
}

.section-dark .case-study-result-text {
  color: var(--color-white);
}

/* Dot pattern background */
.section-gray {
  background-color: var(--color-gray-100);
  background-image:
    radial-gradient(circle, var(--color-gray-200) 1px, transparent 1px),
    radial-gradient(circle, var(--color-gray-200) 1px, transparent 1px);
  background-size: 30px 30px;
  background-position: 0 0, 15px 15px;
  position: relative;
}

.section-gray::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(248, 247, 245, 0.5) 0%, transparent 50%, rgba(248, 247, 245, 0.5) 100%);
  pointer-events: none;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-md);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

#industries .section-header h2 {
  font-size: clamp(1.125rem, 1.8vw, 1.375rem);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  line-height: 1.3;
}

.section-header p {
  margin-bottom: 0;
}

/* Card Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.card {
  background: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: 20px;
  border: 1px solid var(--color-gray-200);
  transition: var(--transition-smooth);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transform-style: preserve-3d;
}

/* Decorative corner accent */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle at top right, rgba(0, 0, 0, 0.03), transparent 70%);
  border-radius: 0 20px 0 100%;
  transition: var(--transition-smooth);
  opacity: 0;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
  border-color: var(--color-gray-300);
}

.card h3 {
  margin-bottom: var(--spacing-sm);
  transition: var(--transition-smooth);
}

.card:hover h3 {
  transform: translateX(4px);
}

.card-icon {
  width: 70px;
  height: 70px;
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-800) 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  color: var(--color-white);
  font-size: 1.75rem;
  transition: var(--transition-smooth);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.card:hover .card-icon {
  transform: rotate(-5deg) scale(1.1);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

/* Industry List */
.industry-list {
  max-width: 800px;
  margin: var(--spacing-sm) auto 0;
}

.industry-item {
  background: var(--color-white);
  border: 2px solid var(--color-gray-200);
  border-radius: 16px;
  margin-bottom: var(--spacing-sm);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.industry-item:hover {
  border-color: var(--color-gray-300);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.industry-item.active {
  border-color: var(--color-black);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.industry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  cursor: pointer;
  user-select: none;
}

.industry-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex: 1;
}

.industry-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.industry-title h3 {
  margin: 0;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  transition: var(--transition-smooth);
}

.industry-header:hover .industry-title h3 {
  color: var(--color-gray-700);
}

.industry-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-600);
  transition: var(--transition-smooth);
  border-radius: 8px;
}

.industry-toggle:hover {
  background: var(--color-gray-100);
  color: var(--color-black);
}

.industry-toggle svg {
  transition: transform 0.3s ease;
}

.industry-item.active .industry-toggle svg {
  transform: rotate(180deg);
}

.industry-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  padding: 0 var(--spacing-md);
}

.industry-item.active .industry-content {
  max-height: 500px;
  padding: 0 var(--spacing-md) var(--spacing-md);
}

.industry-content p {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-600);
}

.industry-content .btn {
  width: 100%;
  margin-top: var(--spacing-xs);
}

/* Feature List */
.feature-list {
  list-style: none;
  margin-top: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-white);
  border-radius: 16px;
  transition: var(--transition-smooth);
  border: 1px solid transparent;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
  position: relative;
  overflow: hidden;
}

.feature-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 4px;
  background: linear-gradient(180deg, var(--color-black), var(--color-gray-600));
  transform: scaleY(0);
  transition: var(--transition-smooth);
}

.feature-item:hover::before {
  transform: scaleY(1);
}

.feature-item:hover {
  background: var(--color-white);
  border-color: var(--color-gray-200);
  transform: translateX(8px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.feature-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--color-black), var(--color-gray-800));
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  margin-top: 0.25rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: var(--transition-smooth);
}

.feature-item:hover .feature-icon {
  transform: rotate(360deg) scale(1.1);
}

.feature-text h4 {
  margin-bottom: 0.5rem;
  font-size: 1.125rem;
  transition: var(--transition-smooth);
}

.feature-text p {
  margin: 0;
  font-size: 0.95rem;
}

/* Process Steps */
.process-steps {
  margin-top: var(--spacing-xl);
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.step::before {
  content: '';
  position: absolute;
  left: 20px;
  top: 50px;
  bottom: -50px;
  width: 2px;
  background: var(--color-gray-200);
}

.step:last-child::before {
  display: none;
}

.step-number {
  width: 40px;
  height: 40px;
  background: var(--color-black);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

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

/* Case Study */
.case-study {
  background: var(--color-white);
  border-radius: 20px;
  padding: var(--spacing-xl);
  margin-top: var(--spacing-xl);
  border: 1px solid var(--color-gray-200);
}

.case-study-header {
  margin-bottom: var(--spacing-lg);
}

.case-study-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.stat {
  text-align: center;
  padding: var(--spacing-md);
}

.stat-value {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 1rem;
  color: var(--color-gray-600);
}

.case-study-list {
  margin-top: var(--spacing-md);
}

.case-study-list-item {
  margin-bottom: var(--spacing-sm);
}

.case-study-emphasis {
  margin-top: var(--spacing-md);
  font-weight: 600;
}

.case-study-result-text {
  margin-top: var(--spacing-lg);
  text-align: center;
  font-size: 1.25rem;
}

.case-study-highlight-box {
  background: var(--color-gray-100);
  padding: var(--spacing-lg);
  border-radius: 12px;
  margin-top: var(--spacing-lg);
}

.case-study-highlight-box h4 {
  margin-bottom: var(--spacing-sm);
}

.case-study-highlight-box p {
  font-size: 1.125rem;
}

.intro-text {
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
}

/* Footer */
.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-sm);
}

.footer-section p,
.footer-section a {
  color: var(--color-gray-400);
  font-size: 0.95rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--color-gray-800);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--color-gray-500);
  font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
  background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-900) 100%);
  color: var(--color-white);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 4s ease-in-out infinite;
}

.cta-section h2 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  position: relative;
  z-index: 1;
}

.cta-section p {
  color: var(--color-gray-300);
  font-size: 1.25rem;
  margin-bottom: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.cta-section .btn {
  position: relative;
  z-index: 1;
}

/* Calendly Widget */
.calendly-inline-widget {
  min-width: 320px;
  height: 700px;
  margin-top: var(--spacing-lg);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  }

  .nav-menu.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .logo-img {
    height: 60px;
  }

  .logo-dark {
    height: 72px;
  }

  .hero {
    min-height: 80vh;
    padding: var(--spacing-xl) 0;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

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

  .case-study {
    padding: var(--spacing-md);
  }

  .footer-content {
    grid-template-columns: 1fr;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(10px, -10px) scale(1.05);
  }
  50% {
    transform: translate(-10px, 10px) scale(0.95);
  }
  75% {
    transform: translate(-5px, -10px) scale(1.02);
  }
}

@keyframes pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  50% {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 0.8;
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Animation classes */
.fade-in-up {
  animation: fadeInUp 0.8s ease-out forwards;
}

.scroll-fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.scroll-slide-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-slide-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.scroll-slide-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.scroll-slide-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.scroll-scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delay for card animations */
.card:nth-child(1) {
  transition-delay: 0.1s;
}

.card:nth-child(2) {
  transition-delay: 0.2s;
}

.card:nth-child(3) {
  transition-delay: 0.3s;
}

.card:nth-child(4) {
  transition-delay: 0.4s;
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.py-xl {
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}

/* ========================================
   DARK MODE SUPPORT
   Automatically detects system preference
   ======================================== */

@media (prefers-color-scheme: dark) {
  /* Update CSS variables for dark mode */
  :root {
    --color-black: #f8f7f5;
    --color-white: #0d0d0d;
    --color-gray-100: #1a1a1a;
    --color-gray-200: #2a2a2a;
    --color-gray-300: #3a3a3a;
    --color-gray-400: #737373;
    --color-gray-500: #a3a3a3;
    --color-gray-600: #d4d4d4;
    --color-gray-700: #e5e5e5;
    --color-gray-800: #f0f0f0;
    --color-gray-900: #f8f7f5;
  }

  /* Body */
  body {
    background-color: #0d0d0d;
    color: #f8f7f5;
  }

  /* Typography */
  h1, h2, h3, h4, h5, h6 {
    color: #f8f7f5;
  }

  p {
    color: #d4d4d4;
  }

  /* Header */
  .header {
    background: rgba(13, 13, 13, 0.95);
    border-bottom: 1px solid #2a2a2a;
  }

  .header.scrolled {
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.08);
  }

  .logo {
    color: #f8f7f5;
  }

  .nav-link {
    color: #d4d4d4;
  }

  .nav-link:hover {
    color: #f8f7f5;
  }

  .nav-link::after {
    background: #f8f7f5;
  }

  .menu-toggle span {
    background: #f8f7f5;
  }

  /* Buttons */
  .btn-primary {
    background: #f8f7f5;
    color: #0d0d0d;
    border-color: #f8f7f5;
  }

  .btn-primary:hover {
    background: #e5e5e5;
    border-color: #e5e5e5;
  }

  .btn-secondary {
    background: transparent;
    color: #f8f7f5;
    border-color: #f8f7f5;
  }

  .btn-secondary:hover {
    background: #f8f7f5;
    color: #0d0d0d;
  }

  /* Hero */
  .hero {
    background-image:
      radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
      linear-gradient(135deg, #1a1a1a 0%, #0d0d0d 100%);
  }

  .hero::before {
    background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
  }

  .hero::after {
    background: radial-gradient(circle, rgba(255, 255, 255, 0.04) 0%, transparent 70%);
  }

  .hero-subtitle {
    color: #f8f7f5;
  }

  .hero-description {
    color: #d4d4d4;
  }

  /* Sections */
  .section-dark {
    background: #f8f7f5;
    color: #0d0d0d;
  }

  .section-dark h1,
  .section-dark h2,
  .section-dark h3,
  .section-dark h4 {
    color: #0d0d0d;
  }

  .section-dark p {
    color: #404040;
  }

  .section-gray {
    background-color: #1a1a1a;
    background-image:
      radial-gradient(circle, #2a2a2a 1px, transparent 1px),
      radial-gradient(circle, #2a2a2a 1px, transparent 1px);
    background-size: 30px 30px;
    background-position: 0 0, 15px 15px;
  }

  .section-gray::before {
    background: linear-gradient(180deg, rgba(13, 13, 13, 0.5) 0%, transparent 50%, rgba(13, 13, 13, 0.5) 100%);
  }

  /* Cards */
  .card {
    background: #1a1a1a;
    border-color: #2a2a2a;
  }

  .card:hover {
    box-shadow: 0 20px 60px rgba(255, 255, 255, 0.12);
    border-color: #3a3a3a;
  }

  .card-icon {
    background: #f8f7f5;
    color: #0d0d0d;
  }

  /* Industry List */
  .industry-item {
    background: #1a1a1a;
    border-color: #2a2a2a;
  }

  .industry-item:hover {
    border-color: #3a3a3a;
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.08);
  }

  .industry-item.active {
    border-color: #f8f7f5;
    box-shadow: 0 8px 30px rgba(255, 255, 255, 0.12);
  }

  .industry-toggle {
    color: #d4d4d4;
  }

  .industry-toggle:hover {
    background: #2a2a2a;
    color: #f8f7f5;
  }

  .industry-content p {
    color: #d4d4d4;
  }

  /* Feature List */
  .feature-item {
    background: #1a1a1a;
  }

  .feature-item:hover {
    background: #2a2a2a;
  }

  .feature-icon {
    background: #f8f7f5;
    color: #0d0d0d;
  }

  /* Process Steps */
  .step::before {
    background: #2a2a2a;
  }

  .step-number {
    background: #f8f7f5;
    color: #0d0d0d;
  }

  /* Case Study */
  .case-study {
    background: #1a1a1a;
    border-color: #2a2a2a;
  }

  .case-study h1,
  .case-study h2,
  .case-study h3,
  .case-study h4,
  .case-study h5,
  .case-study h6 {
    color: #f8f7f5;
  }

  .case-study p,
  .case-study li {
    color: #d4d4d4;
  }

  .stat-value {
    color: #f8f7f5;
  }

  .stat-label {
    color: #d4d4d4;
  }

  /* Footer (inverts to light in dark mode) */
  .footer {
    background: #f8f7f5;
    color: #0d0d0d;
  }

  .footer-section h4 {
    color: #0d0d0d;
  }

  .footer-section p,
  .footer-section a {
    color: #525252;
  }

  .footer-section a:hover {
    color: #0d0d0d;
  }

  .footer-bottom {
    border-top: 1px solid #e5e5e5;
    color: #737373;
  }

  /* CTA Section (inverts to light) */
  .cta-section {
    background: linear-gradient(135deg, #f8f7f5 0%, #e5e5e5 100%);
    color: #0d0d0d;
  }

  .cta-section::before {
    background: radial-gradient(circle, rgba(0, 0, 0, 0.05) 0%, transparent 70%);
  }

  .cta-section h2 {
    color: #0d0d0d;
  }

  .cta-section p {
    color: #404040;
  }

  /* Mobile Menu */
  @media (max-width: 768px) {
    .nav-menu {
      background: #0d0d0d;
      box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
    }
  }

  /* Logo - Switch to white logo in dark mode */
  .logo-light {
    display: none;
  }

  .logo-dark {
    display: block;
  }
}