:root {
  --color-bg-light: #f8f7f4;
  --color-bg-dark: #2a2a2a;
  --color-text-dark: #1a1a1a;
  --color-text-light: #ffffff;
  --color-text-muted: #6b6b6b;
  --color-accent: #c89b5c;
  --color-accent-hover: #b08547;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;

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

  --max-width: 1400px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-bg-light);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: transparent;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: var(--spacing-md) 0;
}

.header.scrolled {
  background-color: rgba(248, 247, 244, 0.95);
  backdrop-filter: blur(10px);
  padding: var(--spacing-sm) 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

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

.logo-text {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}

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

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-dark);
  transition: all 0.3s ease;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  height: 100vh;
  background-color: var(--color-bg-dark);
  z-index: 999;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu.active {
  right: 0;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  text-align: center;
}

.mobile-nav-link {
  color: var(--color-text-light);
  font-size: 2rem;
  font-family: var(--font-display);
  font-weight: 600;
  transition: color 0.3s ease;
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background-color: var(--color-bg-light);
  padding: var(--spacing-2xl) 0;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    linear-gradient(135deg, transparent 0%, rgba(200, 155, 92, 0.03) 100%),
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 60px,
      rgba(42, 42, 42, 0.02) 60px,
      rgba(42, 42, 42, 0.02) 120px
    );
  opacity: 0;
  animation: fadeIn 1.5s ease forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

.hero-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  width: 100%;
}

.hero-content {
  max-width: 900px;
  opacity: 0;
  animation: slideUp 1s ease 0.3s forwards;
}

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

.hero-title {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  line-height: 1.1;
}

.hero-title-line {
  display: block;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.hero-description {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-muted);
  max-width: 650px;
}

.btn {
  display: inline-block;
  padding: 1.2rem 3rem;
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
  border-radius: 0;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  text-align: center;
}

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

.btn-primary:hover {
  background-color: var(--color-text-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.btn-secondary {
  background-color: var(--color-accent);
  color: var(--color-text-dark);
}

.btn-secondary:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(200, 155, 92, 0.3);
}

.section-label {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.section-label.light {
  color: var(--color-accent);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
}

.section-title.light {
  color: var(--color-text-light);
}

.section-description {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text-muted);
  max-width: 600px;
}

.about {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-light);
}

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

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.about-text {
  padding-right: var(--spacing-md);
}

.approach-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
}

.approach-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.approach-step {
  display: flex;
  gap: var(--spacing-md);
  align-items: start;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.6s ease;
}

.approach-step.visible {
  opacity: 1;
  transform: translateY(0);
}

.step-number {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: var(--color-accent);
  line-height: 1;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

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

.why-gfs {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
}

.animated-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.floating-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.05;
  filter: blur(40px);
}

.shape-1 {
  width: 500px;
  height: 500px;
  background: var(--color-accent);
  top: -200px;
  right: -100px;
  animation: float 20s ease-in-out infinite;
}

.shape-2 {
  width: 400px;
  height: 400px;
  background: #ffffff;
  bottom: -150px;
  left: -50px;
  animation: float 25s ease-in-out infinite reverse;
}

.shape-3 {
  width: 300px;
  height: 300px;
  background: var(--color-accent);
  top: 50%;
  left: 50%;
  animation: float 18s ease-in-out infinite;
}

.shape-4 {
  width: 350px;
  height: 350px;
  background: #ffffff;
  bottom: 20%;
  right: 10%;
  animation: float 22s ease-in-out infinite reverse;
}

@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);
  }
}

.why-gfs-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

.why-gfs-header {
  margin-bottom: var(--spacing-xl);
  text-align: center;
}

.why-gfs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  background: rgba(255, 255, 255, 0.03);
  padding: var(--spacing-lg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  transform: translateY(30px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-accent);
  transform: translateY(-8px);
}

.feature-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
}

.services {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-light);
}

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

.services-header {
  margin-bottom: var(--spacing-xl);
  max-width: 700px;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  row-gap: var(--spacing-lg);
}

.service-card {
  padding: var(--spacing-lg);
  background: transparent;
  border: 1px solid rgba(26, 26, 26, 0.08);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  opacity: 0;
  transform: translateY(20px);
}

.service-card.visible {
  opacity: 1;
  transform: translateY(0);
}

.service-card:nth-child(even) {
  transform: translateY(40px);
}

.service-card.visible:nth-child(even) {
  transform: translateY(0);
}

.service-card:hover {
  border-color: var(--color-accent);
  transform: translateX(8px);
  background: rgba(200, 155, 92, 0.02);
}

.service-card:nth-child(even):hover {
  transform: translateX(8px);
}

.service-number {
  display: block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.service-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.service-description {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.industries {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-light);
}

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

.industries-content {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-xl);
  align-items: start;
}

.industries-text {
  position: sticky;
  top: 150px;
}

.industries-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.industry-item {
  padding: var(--spacing-lg);
  border: 1px solid rgba(26, 26, 26, 0.08);
  transition: all 0.3s ease;
  opacity: 0;
  transform: scale(0.95);
}

.industry-item.visible {
  opacity: 1;
  transform: scale(1);
}

.industry-item:hover {
  border-color: var(--color-accent);
  background: rgba(200, 155, 92, 0.02);
}

.industry-name {
  font-size: 1.3rem;
  font-weight: 600;
}

.cpa-section {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-light);
  border-top: 1px solid rgba(26, 26, 26, 0.08);
  border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}

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

.cpa-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.cpa-title {
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  line-height: 1;
  letter-spacing: -0.02em;
}

.cpa-description {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--color-text-muted);
}

.cta {
  padding: var(--spacing-2xl) 0;
  background-color: var(--color-bg-dark);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}

.cta-description {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--spacing-lg);
}

.footer {
  background-color: var(--color-bg-dark);
  color: var(--color-text-light);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.footer-tagline {
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  max-width: 300px;
}

.footer-title {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.3s ease;
}

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

.footer-links li {
  color: rgba(255, 255, 255, 0.7);
}

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

.footer-copyright {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.9rem;
}

@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .industries-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .industries-text {
    position: static;
  }

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

@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 5rem;
  }

  .nav {
    display: none;
  }

  .menu-toggle {
    display: flex;
  }

  .hero {
    min-height: 90vh;
    padding: var(--spacing-xl) 0;
  }

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

  .service-card:nth-child(even) {
    transform: translateY(20px);
  }

  .industries-list {
    grid-template-columns: 1fr;
  }

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

  .why-gfs-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-description {
    font-size: 1rem;
  }

  .btn {
    padding: 1rem 2rem;
    font-size: 0.95rem;
  }
}