:root {
  --bg: #07080b;
  --surface: #111319;
  --surface-light: #161b22;
  --border: rgba(255, 255, 255, 0.08);
  --accent: #88f0c9;
  --accent-soft: rgba(136, 240, 201, 0.16);
  --text-main: #f6f7fa;
  --text-muted: #a7acc0;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.24);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.32s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 112.5%;
}

body {
  min-height: 100vh;
  background: radial-gradient(circle at top left, rgba(136, 240, 201, 0.08), transparent 24%),
              radial-gradient(circle at bottom right, rgba(255, 255, 255, 0.04), transparent 18%),
              var(--bg);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.75;
  font-size: 1.05rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.nav-open {
  overflow: hidden;
}

body.nav-open::before {
  content: '';
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1040;
  backdrop-filter: blur(4px);
}

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

nav {
  position: fixed;
  top: 0;
  width: 100%;
  height: 80px;
  background: rgba(9, 11, 16, 0.94);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.18);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.nav-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  position: relative;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.8px;
  text-transform: uppercase;
  margin-right: 40px;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: rgba(247, 247, 247, 0.78);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  transition: var(--transition);
}

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

.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  position: absolute;
  right: 0;
  z-index: 1100;
  padding: 10px;
}

.menu-btn .line {
  width: 24px;
  height: 2px;
  background-color: var(--text-main);
  display: block;
  margin: 5px 0;
  transition: var(--transition);
}

.hero {
  padding: 200px 0 100px;
  position: relative;
  border-bottom: 1px solid var(--border);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(136, 240, 201, 0.14), transparent 28%);
  pointer-events: none;
}

.hero-label {
  color: var(--accent);
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 5px;
  margin-bottom: 25px;
  display: inline-block;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5rem);
  line-height: 0.98;
  font-weight: 700;
  letter-spacing: -2px;
  margin-bottom: 35px;
  max-width: 12ch;
}

.hero p {
  max-width: 900px;
  font-size: 1.18rem;
  color: var(--text-muted);
  font-weight: 300;
}

section {
  padding: 90px 0;
  border-bottom: 1px solid var(--border);
}

.section-label {
  color: var(--accent);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 3px;
  font-weight: 800;
  display: block;
  margin-bottom: 15px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 3.1vw, 3.6rem);
  line-height: 1.05;
  margin-bottom: 25px;
  font-weight: 700;
}

.grid-12 {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px;
}

.col-4 {
  grid-column: span 4;
}

.col-6 {
  grid-column: span 6;
}

.col-8 {
  grid-column: span 8;
}

.card,
.panel {
  background: rgba(18, 20, 26, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 34px;
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.panel {
  background: rgba(20, 24, 34, 0.96);
}

.card:hover,
.panel:hover {
  transform: translateY(-6px);
  border-color: rgba(136, 240, 201, 0.24);
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  margin-bottom: 18px;
}

.card-meta {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  display: block;
  margin-bottom: 18px;
  font-weight: 800;
}

.info-list {
  list-style: none;
  margin-top: 22px;
}

.info-list li {
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 1.03rem;
  padding-left: 24px;
  position: relative;
}

.info-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.spec-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 26px 0;
  border-bottom: 1px dotted var(--border);
}

.spec-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.spec-desc {
  color: var(--text-muted);
  text-align: right;
  font-size: 0.98rem;
  max-width: 60%;
}

.ecosystem-box {
  background: rgba(20, 24, 34, 0.96);
  padding: 60px;
  border: 1px solid var(--border);
  border-radius: 20px;
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

.hub-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.95rem;
  text-transform: uppercase;
  font-family: var(--font-display);
  letter-spacing: 1px;
  text-decoration: none;
  color: var(--text-main);
  transition: var(--transition);
  border-radius: 14px;
}

.hub-btn:hover {
  background: rgba(136, 240, 201, 0.12);
  color: var(--accent);
  border-color: rgba(136, 240, 201, 0.22);
}

.backlink-section {
  display: none !important;
}

.btn {
  display: inline-flex;
  align-items: center;
  padding: 14px 34px;
  border: 1px solid var(--text-main);
  border-radius: 999px;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.88rem;
  letter-spacing: 1.8px;
  text-decoration: none;
  color: var(--text-main);
  transition: var(--transition);
}

.btn-accent {
  border-color: var(--accent);
  color: var(--accent);
}

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

.btn-sm {
  padding: 10px 18px;
  font-size: 0.78rem;
  letter-spacing: 1.5px;
}

.btn-ghost {
  border-color: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: transparent;
}

.card-links {
  margin-top: 20px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.vibe-tags {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 15px;
}

.vibe-tag {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--accent);
  font-weight: 600;
}

.hero-links-section {
  margin-top: 60px;
  padding-top: 50px;
  border-top: 1px solid var(--border);
}

.hero-links-section h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 30px;
  color: var(--text-muted);
}

.link-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
}

.link-column h4 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 15px;
  color: var(--accent);
}

.link-column a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--text-main);
  transition: var(--transition);
}

.link-column a:hover {
  color: var(--accent);
  padding-right: 10px;
}

@media (max-width: 1024px) {
  .nav-inner {
    justify-content: space-between;
  }

  .logo {
    margin-right: 0;
  }

  .menu-btn {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: min(100%, 420px);
    height: 100vh;
    background: #07080b;
    flex-direction: column;
    justify-content: center;
    text-align: center;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    gap: 40px;
    z-index: 1050;
    padding: 24px;
    border-left: 1px solid var(--border);
  }

  .nav-links.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-links a {
    font-size: 1.2rem;
  }

  .menu-btn.active .line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .menu-btn.active .line:nth-child(2) {
    opacity: 0;
  }

  .menu-btn.active .line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .col-4,
  .col-6,
  .col-8 {
    grid-column: span 12;
  }

  .spec-item {
    flex-direction: column;
  }

  .spec-desc {
    text-align: left;
    max-width: 100%;
    margin-top: 5px;
  }

  .ecosystem-box {
    padding: 40px;
  }

  .hero {
    padding-top: 150px;
  }
}