:root {
  --bg0: #050507;
  --bg1: #121214;
  --accent: #ffffff;
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --border: rgba(255, 255, 255, 0.08);
  --glass: rgba(10, 10, 12, 0.6);
  --radius: 20px;
  --max: 1200px;
  --pad: 24px;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --section-gap: 160px; 
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg0);
  background-image: radial-gradient(circle at 50% 0%, var(--bg1) 0%, var(--bg0) 70%);
  background-attachment: fixed;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(var(--max), calc(100% - 2 * var(--pad)));
  margin-inline: auto;
}

.topbar {
  position: sticky;
  top: 16px;
  z-index: 1000;
  width: min(var(--max), calc(100% - 32px));
  margin-inline: auto;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  min-height: 70px;
}

.brand {
  display: flex;
  align-items: center;
}

.brand__logo {
  height: 28px;
  width: auto;
}

.nav {
  display: none;
  gap: 32px;
  align-items: center;
}

.nav__link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  opacity: 0.7;
  transition: opacity 0.3s var(--ease);
}

.nav__link:hover {
  opacity: 1;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.burger {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  padding: 0;
  cursor: pointer;
}

.burger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  margin: 3px 0;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.mobileNav {
  display: none;
  background: rgba(5, 5, 7, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  border-radius: 0 0 24px 24px;
  padding: 16px 20px 20px;
  margin-top: -1px;
}

.mobileNav.is-open {
  display: grid;
  gap: 10px;
}

.mobileNav__link {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  font-size: 16px;
  font-weight: 500;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 24px;
  border-radius: 22px;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: transform 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
  white-space: nowrap;
  cursor: pointer;
}

.pill:hover {
  transform: translateY(-2px);
}

.pill--primary {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg0);
}

.pill--primary:hover {
  background: transparent;
  color: var(--text);
}

.pill--ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.pill--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
}

.pill--full {
  width: 100%;
}

.section {
  padding: var(--section-gap) 0;
}

.h1, .h2, .h3 {
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0;
}

.h1 {
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.1;
}

.h2 {
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.2;
}

.h3 {
  font-size: clamp(20px, 2vw, 24px);
}

.sub {
  font-size: 18px;
  color: var(--muted);
  line-height: 1.6;
  margin: 16px 0 0;
}

.word-reveal span {
  display: inline-block;
  opacity: 0;
  filter: blur(8px);
  transform: translateY(10px);
  transition: opacity 0.8s var(--ease), filter 0.8s var(--ease), transform 0.8s var(--ease);
}

.word-reveal.is-in span {
  opacity: 1;
  filter: blur(0);
  transform: translateY(0);
}

.footer {
  padding: 80px 0 30px;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.5);
  margin-top: auto;
}

.footer__inner {
  display: grid;
  gap: 40px;
}

.footer__sub {
  color: var(--muted);
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.6;
  max-width: 340px;
}

.footer__social {
  display: flex;
  gap: 16px;
  margin-top: 32px;
}

.footer__social img {
  width: 36px;
  height: 36px;
  opacity: 0.6;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

.footer__social img:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.footer__links, .footer__legal {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer__bottom {
  text-align: center;
  margin-top: 60px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.footer__link {
  color: var(--muted);
  font-size: 15px;
  transition: color 0.3s var(--ease);
}

.footer__link:hover {
  color: var(--text);
}

.footer__copy {
  color: var(--muted);
  font-size: 14px;
}

.fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  height: 60px;
  padding: 0 24px 0 16px;
  border-radius: 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
  z-index: 100;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.fab:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.3);
}

.fab__img {
  width: 28px;
  height: 28px;
}

.fab__text {
  font-weight: 500;
  color: var(--text);
  font-size: 15px;
}

@media (min-width: 900px) {
  .nav {
    display: flex;
  }
  .burger {
    display: none;
  }
  .mobileNav {
    display: none !important;
  }
  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr;
    gap: 80px;
  }
}