:root {
  --bg-color: #ffffff;
  --bg-alt: #fafaf7;
  --bg-card: #f6f6f2;
  --text-main: #111111;
  --text-muted: #777777;
  --text-light: #6d6d6d;
  --border-light: #eee;
  --border-main: #e8e8e4;
  --border-card: #e3e3de;
  --border-dark: #ddd;
  
  --font-stack: "Helvetica Neue", Arial, sans-serif;
  --transition-fast: 0.3s ease;
  --transition-slow: 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  --section-pad: 115px 5vw;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-color);
  color: var(--text-main);
  font-family: var(--font-stack);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 800;
}

.eyebrow {
  font-size: 10px;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: block;
}

.lead {
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.55;
  max-width: 650px;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 7vw;
  margin-bottom: 55px;
}

.section-head h2 {
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.9;
  letter-spacing: -0.06em;
  margin: 12px 0;
}

/* Navigation */
.global-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 5vw;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid var(--border-light);
}

.global-nav .logo {
  font-weight: 800;
  letter-spacing: -0.04em;
  font-size: 18px;
  transition: opacity var(--transition-fast);
}

.global-nav .logo:hover {
  opacity: 0.7;
}

.global-nav .nav-links {
  display: flex;
  gap: 25px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.global-nav .nav-links a {
  transition: opacity var(--transition-fast);
}

.global-nav .nav-links a:hover {
  opacity: 0.6;
}

/* Footer */
.global-footer {
  padding: 55px 5vw 35px;
  border-top: 1px solid var(--border-main);
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 30px;
  color: var(--text-muted);
  font-size: 14px;
}

.global-footer strong {
  color: var(--text-main);
  font-size: 18px;
  letter-spacing: -0.04em;
  display: block;
  margin-bottom: 8px;
}

.global-footer p {
  line-height: 1.6;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0px;
}

.footer-links a {
  text-decoration: none;
}

.footer-links h5 {
  margin: 0 0 12px;
  color: var(--text-main);
  font-size: 13px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  transition: opacity var(--transition-fast);
}

.footer-links a:hover h5 {
  opacity: 0.6;
}

/* Components */
.btn {
  display: inline-block;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 13px 22px;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-top: 22px;
  transition: var(--transition-fast);
  cursor: pointer;
  background: transparent;
  color: var(--text-main);
}

.btn:hover {
  background: var(--text-main);
  color: var(--bg-color);
}

section {
  padding: var(--section-pad);
  border-top: 1px solid var(--border-main);
}

/* Utilities */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    transform: none;
    opacity: 1;
  }
}


/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 5px;
  z-index: 200;
}

.mobile-menu-toggle .bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-main);
  margin: 5px auto;
  transition: all 0.3s ease;
}


/* Service Pages */
.service-hero {
  padding: 15vh 5vw 10vh;
}

.service-hero h1 {
  font-size: clamp(50px, 8vw, 120px);
  line-height: 0.95;
  letter-spacing: -0.05em;
  margin-top: 15px;
  margin-bottom: 25px;
}

.service-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6vw;
  align-items: center;
}

.service-feature h3 {
  font-size: clamp(30px, 4vw, 50px);
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.service-feature img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.08);
  display: block;
}

/* Market Case Showcase */
.case-showcase {
  background: #111;
  color: #fff;
}

.case-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}

.case-gallery img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

/* Responsive */
@media (max-width: 850px) {
  .mobile-menu-toggle {
    display: block;
  }
  
  .global-nav .nav-links {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    font-size: 20px; /* Large readable size for mobile */
    gap: 45px;
    z-index: 150;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-20px);
    transition: all 0.4s ease;
  }
  
  .global-nav .nav-links.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  /* Hamburger Animation */
  .mobile-menu-toggle.active .bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .mobile-menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  
  .section-head {
    grid-template-columns: 1fr;
    gap: 3vw;
  }
  
  .service-feature {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .case-gallery {
    grid-template-columns: 1fr;
  }
  
  .global-footer {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 550px) {
  section {
    padding: 80px 6vw;
  }
  
  .global-footer {
    grid-template-columns: 1fr;
  }
}