:root{
  --bg: #050608;
  --panel: rgba(255,255,255,0.035);
  --panel2: rgba(255,255,255,0.025);
  --border: rgba(255,255,255,0.08);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.72);
  --muted2: rgba(255,255,255,0.58);
  --cyan: #21E6FF;
  --orange: #FF8A00;
  --shadow: 0 16px 40px rgba(0,0,0,0.45);
  --radius: 18px;
}

*{ box-sizing: border-box; }
html,body{ height: 100%; }
body{
  margin: 0;
  font-family: 'Montserrat', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container{
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

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

.header{
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.header-inner{
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

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

.brand-logo{
  height: 75px;
  width: auto;
  display:block;
  filter: drop-shadow(0 0 12px rgba(33,230,255,0.12));
}

.nav{ display:flex; align-items:center; gap: 14px; }
.nav-links{ display:flex; align-items:center; gap: 18px; }

.nav-links a{
  position: relative;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.03em;
  color: rgba(255,255,255,0.82);
  padding: 10px 4px;
  transition: color 180ms ease;
}

.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom: 4px;
  height: 2px;
  width: 0;
  background: var(--cyan);
  border-radius: 999px;
  opacity: 0.35;
  transition: width 180ms ease, opacity 180ms ease;
}

.nav-links a:hover{
  color: rgba(33,230,255,0.9);
}
.nav-links a:hover::after{
  width: 100%;
  opacity: 0.45;
}

.nav-links a.active{
  color: var(--cyan);
}
.nav-links a.active::after{
  width: 100%;
  opacity: 1;
}

/* Mobile nav */
.nav-toggle{
  display:none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  box-shadow: 0 10px 20px rgba(0,0,0,0.25);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  gap: 5px;
  padding: 0;
}
.nav-toggle span{
  width: 18px;
  height: 2px;
  background: rgba(255,255,255,0.85);
  display:block;
  border-radius: 999px;
}

.hero{
  min-height: 75vh;
  display:flex;
  align-items:center;
  padding: 60px 0 40px;
  background-image:
    radial-gradient(1000px 600px at 60% 30%, rgba(33,230,255,0.08), rgba(0,0,0,0) 65%),
    radial-gradient(800px 500px at 35% 70%, rgba(255,138,0,0.05), rgba(0,0,0,0) 60%),
    linear-gradient(rgba(0,0,0,0.55), rgba(0,0,0,0.65));
}

.hero-inner{
  display:flex;
  justify-content:center;
}

.hero-card{
  width: min(860px, 100%);
  padding: 34px 28px;
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.09);
  box-shadow: var(--shadow);
  text-align:center;
}

.hero-mark{
  width: min(440px, 92%);
  height: auto;
  display:block;
  margin: 0 auto 12px;
  filter: drop-shadow(0 0 24px rgba(33,230,255,0.12));
  opacity: 0.95;
}

.hero h1{
  margin: 10px 0 10px;
  font-size: clamp(34px, 4vw, 56px);
  letter-spacing: -0.02em;
}

.hero p{
  margin: 0 auto 18px;
  max-width: 56ch;
  color: rgba(255,255,255,0.78);
  line-height: 1.7;
  font-size: 16px;
}

.hero-cta{
  display:flex;
  gap: 12px;
  justify-content:center;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  height: 44px;
  padding: 0 16px;
  border-radius: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 14px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
  user-select:none;
}

.btn-primary{
  background: rgba(33,230,255,0.12);
  border-color: rgba(33,230,255,0.35);
  box-shadow: 0 14px 30px rgba(33,230,255,0.10);
}
.btn-primary:hover{
  transform: translateY(-1px);
  box-shadow: 0 18px 38px rgba(33,230,255,0.14);
  border-color: rgba(33,230,255,0.55);
}

.btn-ghost{
  background: rgba(255,255,255,0.03);
  border-color: rgba(255,255,255,0.10);
}
.btn-ghost:hover{
  transform: translateY(-1px);
  border-color: rgba(255,255,255,0.18);
}

.btn.disabled{
  opacity: 0.55;
  cursor: default;
  pointer-events: none;
}

.hero-meta{
  display:flex;
  gap: 8px;
  justify-content:center;
  flex-wrap: wrap;
}

.pill{
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.02);
  font-size: 12px;
  color: rgba(255,255,255,0.76);
}

.section{
  padding: 70px 0;
}

.section.alt{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.section-title{
  margin-bottom: 22px;
}
.section-title h2{
  margin: 0 0 10px;
  font-size: 28px;
  letter-spacing: -0.01em;
}
.divider{
  height: 14px;
  width: 100%;
  border-radius: 999px;
  background:
    radial-gradient(120px 6px at 8% 50%, rgba(33,230,255,0.50), rgba(0,0,0,0) 70%),
    radial-gradient(80px 5px at 45% 50%, rgba(255,138,0,0.35), rgba(0,0,0,0) 70%),
    linear-gradient(90deg, rgba(255,255,255,0.10), rgba(255,255,255,0.02), rgba(255,255,255,0.08));
  opacity: 0.9;
}

.featured{
  display:grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 18px;
  border-radius: 24px;
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.018));
  overflow:hidden;
  box-shadow: var(--shadow);
}

.featured-media{
  background: rgba(0,0,0,0.35);
}
.featured-banner{
  width: 100%;
  height: 100%;
  object-fit: cover;
  display:block;
  min-height: 320px;
}

.featured-content{
  padding: 22px 22px 18px;
  display:flex;
  flex-direction: column;
  gap: 14px;
}

.featured-top{
  display:flex;
  gap: 14px;
  align-items: center;
}
.app-icon{
  width: 62px;
  height: 62px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.02);
  box-shadow: 0 14px 30px rgba(0,0,0,0.35);
  flex: 0 0 auto;
}

.featured-content h3{
  margin: 0 0 4px;
  font-size: 22px;
}
.muted{ color: var(--muted); }
.featured-content p{
  margin: 0;
  line-height: 1.65;
  max-width: 62ch;
}

.tags{
  display:flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag{
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.78);
  font-size: 12px;
}

.actions{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}

.footnote{
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted2);
}

.grid-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.card{
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
  padding: 18px 18px 16px;
  box-shadow: 0 12px 26px rgba(0,0,0,0.32);
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}
.card:hover{
  transform: translateY(-2px);
  border-color: rgba(33,230,255,0.22);
  box-shadow: 0 18px 34px rgba(0,0,0,0.42);
}
.card h4{
  margin: 0 0 8px;
  font-size: 16px;
}
.card p{
  margin: 0;
  line-height: 1.65;
  color: var(--muted);
}

.support-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.backlink{
  margin-top: 18px;
}

.footer{
  padding: 24px 0 40px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-inner{
  display:flex;
  gap: 10px;
  align-items:center;
  justify-content:center;
  flex-wrap: wrap;
}
.dot{ color: rgba(255,255,255,0.35); }

.reveal{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 600ms ease, transform 600ms ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px){
  .featured{ grid-template-columns: 1fr; }
  .featured-banner{ min-height: 260px; }
  .support-grid{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .header-inner{ height: 66px; }
  .brand-logo{ height: 26px; }

  .nav-toggle{ display:inline-flex; }
  .nav-links{
    position: absolute;
    top: 66px;
    right: 14px;
    left: 14px;
    display:none;
    flex-direction: column;
    gap: 0;
    padding: 10px;
    border-radius: 18px;
    background: rgba(0,0,0,0.75);
    border: 1px solid rgba(255,255,255,0.10);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 22px 60px rgba(0,0,0,0.55);
  }
  .nav-links a{ padding: 12px 10px; }
  .nav-links.open{ display:flex; }
}

input, textarea{
  width: 100%;
  margin-top: 6px;
  margin-bottom: 14px;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(255,255,255,0.03);
  color: rgba(255,255,255,0.9);
  outline: none;
}
input:focus, textarea:focus{
  border-color: rgba(33,230,255,0.45);
  box-shadow: 0 0 0 4px rgba(33,230,255,0.08);
}

textarea{ resize: vertical; font-family: inherit; }
input{ font-family: inherit; }

.hero-video{
  width: min(520px, 92%);
  height: auto;
  display: block;
  margin: 0 auto 12px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(0,0,0,0.35);
  box-shadow: 0 16px 40px rgba(0,0,0,0.45);
}