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

:root {
  --black: #0a0a0a;
  --gray-900: #181818;
  --gray-800: #242424;
  --gray-700: #383838;
  --gray-600: #525252;
  --gray-500: #737373;
  --gray-400: #a3a3a3;
  --gray-300: #d4d4d4;
  --gray-200: #e5e5e5;
  --gray-100: #f5f5f5;
  --white: #ffffff;
  --transition-fast: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--white);
  color: var(--gray-800);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.1;
  color: var(--black);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 7vw, 6rem); text-transform: uppercase; }
h2 { font-size: clamp(2rem, 5vw, 4rem); text-transform: uppercase; }
h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); }
h4 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }

p { margin-bottom: 1.25rem; max-width: 70ch; }

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 12px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-800);
  transition: padding var(--transition-base);
}

.site-logo {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  text-transform: uppercase;
  color: var(--white);
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.site-logo span {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--gray-400);
  margin-top: 2px;
}

.nav-toggle {
  position: relative;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--gray-600);
  border-radius: 6px;
  cursor: pointer;
  z-index: 1001;
  transition: border-color var(--transition-fast);
}

.nav-toggle:hover { border-color: var(--white); }

.nav-toggle .bar {
  position: absolute;
  left: 50%;
  width: 20px;
  height: 2px;
  background-color: var(--white);
  border-radius: 2px;
  transform: translateX(-50%);
  transition: all var(--transition-base);
}

.nav-toggle .bar:nth-child(1) { top: 15px; }
.nav-toggle .bar:nth-child(2) { top: 21px; }
.nav-toggle .bar:nth-child(3) { top: 27px; }

body.menu-open .nav-toggle .bar:nth-child(1) {
  top: 21px;
  transform: translateX(-50%) rotate(45deg);
}
body.menu-open .nav-toggle .bar:nth-child(2) { opacity: 0; }
body.menu-open .nav-toggle .bar:nth-child(3) {
  top: 21px;
  transform: translateX(-50%) rotate(-45deg);
}

.fullscreen-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: var(--black);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  pointer-events: none;
  transform: scale(1.05);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

body.menu-open .fullscreen-nav {
  opacity: 1;
  pointer-events: all;
  transform: scale(1);
}

.fullscreen-nav .nav-link {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: clamp(1.75rem, 6vw, 4rem);
  text-transform: uppercase;
  color: var(--gray-500);
  position: relative;
  padding: 0.5rem 1rem;
  transition: color var(--transition-base), transform var(--transition-base);
}

.fullscreen-nav .nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 3px;
  background-color: var(--white);
  transform: translateX(-50%);
  transition: width var(--transition-base);
}

.fullscreen-nav .nav-link:hover,
.fullscreen-nav .nav-link.active,
.fullscreen-nav .nav-link[aria-current="page"] {
  color: var(--white);
  transform: translateX(8px);
}

.fullscreen-nav .nav-link:hover::before,
.fullscreen-nav .nav-link.active::before,
.fullscreen-nav .nav-link[aria-current="page"]::before {
  width: 60%;
}

.fullscreen-nav .nav-link.active::after,
.fullscreen-nav .nav-link[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: -1rem;
  top: 50%;
  width: 8px;
  height: 8px;
  background-color: var(--white);
  border-radius: 50%;
  transform: translateY(-50%);
}

main { flex: 1 0 auto; }

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  background-color: var(--black);
  color: var(--white);
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    115deg,
    rgba(40,40,40,0.6) 0%,
    rgba(10,10,10,0.9) 25%,
    rgba(60,60,60,0.5) 50%,
    rgba(10,10,10,0.9) 75%,
    rgba(40,40,40,0.6) 100%
  );
  background-size: 200% 100%;
  animation: heroGradient 18s ease infinite;
  z-index: -2;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    radial-gradient(circle at 20% 80%, rgba(255,255,255,0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255,255,255,0.03) 0%, transparent 50%);
  z-index: -1;
}

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

.hero-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.4em;
  color: var(--gray-400);
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--gray-700);
  display: inline-block;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(3rem, 9vw, 8rem);
  line-height: 0.95;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.hero-subtitle {
  font-family: 'Inter', sans-serif;
  font-size: clamp(1rem, 2vw, 1.35rem);
  color: var(--gray-300);
  max-width: 640px;
  margin: 0 auto 3rem;
  line-height: 1.5;
}

.hero-cta-group {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 1.1rem 2.5rem;
  border: 2px solid var(--black);
  background: transparent;
  color: var(--black);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 4px;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--black);
  transform: translateY(101%);
  transition: transform var(--transition-base) var(--ease-out);
  z-index: -1;
}

.btn:hover::before { transform: translateY(0); }
.btn:hover {
  color: var(--white);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.25);
}

.btn:active { transform: translateY(-1px); }

.btn-primary {
  border-color: var(--white);
  color: var(--white);
}
.btn-primary::before { background-color: var(--white); }
.btn-primary:hover { color: var(--black); box-shadow: 0 12px 35px rgba(255,255,255,0.2); }

.btn-light {
  border-color: var(--black);
  color: var(--black);
}
.btn-light::before { background-color: var(--black); }
.btn-light:hover { color: var(--white); }

.btn-full { width: 100%; }

.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 0;
  background-color: var(--white);
  position: relative;
}

.section-divider::before,
.section-divider::after {
  content: '';
  height: 1px;
  width: 40%;
  max-width: 300px;
  background-color: var(--gray-300);
}

.section-divider::before { margin-right: 1.5rem; }
.section-divider::after { margin-left: 1.5rem; }

.section-divider .dot {
  width: 10px;
  height: 10px;
  background-color: var(--black);
  border-radius: 50%;
  flex-shrink: 0;
}

.section-divider.dark { background-color: var(--black); }
.section-divider.dark::before,
.section-divider.dark::after { background-color: var(--gray-700); }
.section-divider.dark .dot { background-color: var(--white); }

.content-section {
  padding: 6rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.content-section.wide { max-width: 1400px; }
.content-section.narrow { max-width: 800px; }

.section-header {
  margin-bottom: 4rem;
  text-align: center;
}

.section-eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  color: var(--gray-500);
  display: block;
  margin-bottom: 1rem;
}

.section-header h2 { margin-bottom: 1rem; }
.section-header p {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin: 0 auto;
  text-align: center;
}

.section-dark {
  background-color: var(--black);
  color: var(--gray-300);
}
.section-dark h1, .section-dark h2, .section-dark h3, .section-dark h4 { color: var(--white); }
.section-dark .section-eyebrow { color: var(--gray-500); }
.section-dark p { color: var(--gray-400); }

.section-gray {
  background-color: var(--gray-100);
}

.section-pattern {
  background-color: var(--white);
  background-image: radial-gradient(var(--gray-200) 1.5px, transparent 1.5px);
  background-size: 28px 28px;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.two-col .col-text h2 { margin-bottom: 1.5rem; text-align: left; }
.two-col .col-text p { font-size: 1.1rem; margin-bottom: 1.5rem; }
.two-col .col-image img {
  width: 100%;
  height: 100%;
  min-height: 400px;
  border-radius: 16px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  overflow: hidden;
  transition: transform var(--transition-base) var(--ease-out),
              box-shadow var(--transition-base) var(--ease-out),
              border-color var(--transition-base);
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY