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

html{
  width:100%;
  overflow-x:hidden;
}

body{
  width:100%;
  min-height:100vh;
  overflow-x:hidden;
  font-family:Arial, Helvetica, sans-serif;
  color:#ffffff;
  position:relative;
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  background:
    radial-gradient(circle at 20% 25%, rgba(255,0,0,0.16), transparent 34%),
    radial-gradient(circle at 82% 72%, rgba(255,255,255,0.05), transparent 24%),
    linear-gradient(135deg, #000000 0%, #090909 48%, #111111 100%);
}

/* top badge */

.top-badge{
  position:fixed;
  top:22px;
  left:50%;
  transform:translateX(-50%);
  z-index:20;
  width:100%;
  display:flex;
  justify-content:center;
  padding:0 16px;
  pointer-events:none;
}

.ua-badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  max-width:calc(100vw - 32px);
  padding:10px 18px;
  border-radius:999px;
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.1);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.02) inset,
    0 10px 30px rgba(0,0,0,0.25);
  font-size:13px;
  font-weight:700;
  letter-spacing:0.12em;
  text-transform:uppercase;
  white-space:nowrap;
}

.flag{
  font-size:22px;
  line-height:1;
}

/* hero */

.hero{
  width:100%;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:120px 20px 88px;
  position:relative;
  z-index:5;
}

.hero-content{
  width:100%;
  max-width:980px;
  margin:0 auto;
  padding:0 12px;
  position:relative;
  z-index:6;
}

/* title */

h1{
  font-size:clamp(42px, 7vw, 108px);
  line-height:1.02;
  font-weight:800;
  letter-spacing:-0.045em;
  margin-bottom:24px;
  color:#ffffff;
  text-wrap:balance;
  background:linear-gradient(90deg, #ffffff 0%, #ffd2d2 22%, #ff4d4d 52%, #ffffff 78%, #ff7a7a 100%);
  background-size:220% auto;
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  animation:shine 4.2s linear infinite;
}

.subtitle{
  max-width:760px;
  margin:0 auto 18px;
  font-size:clamp(17px, 2vw, 22px);
  line-height:1.6;
  color:rgba(255,255,255,0.76);
  text-align:center;
}

.platforms{
  max-width:760px;
  margin:0 auto 34px;
  font-size:14px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:rgba(255,255,255,0.48);
  line-height:1.6;
  text-align:center;
}

.cta-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:60px;
  padding:18px 34px;
  border-radius:999px;
  text-decoration:none;
  color:#ffffff;
  font-size:15px;
  font-weight:800;
  letter-spacing:0.1em;
  text-transform:uppercase;
  background:linear-gradient(90deg, #760000 0%, #ff1f1f 52%, #ff4b4b 100%);
  border:1px solid rgba(255,255,255,0.14);
  box-shadow:
    0 10px 30px rgba(255,0,0,0.28),
    0 0 22px rgba(255,0,0,0.2);
  transition:transform 0.25s ease, box-shadow 0.25s ease, filter 0.25s ease;
}

.cta-btn:hover{
  transform:translateY(-3px);
  box-shadow:
    0 18px 40px rgba(255,0,0,0.36),
    0 0 40px rgba(255,255,255,0.1);
  filter:brightness(1.05);
}

.seo-text{
  max-width:760px;
  margin:28px auto 0;
  font-size:12px;
  line-height:1.7;
  color:rgba(255,255,255,0.34);
  text-align:center;
}

/* footer */

.footer{
  position:fixed;
  left:0;
  bottom:20px;
  width:100%;
  text-align:center;
  padding:0 16px;
  font-size:13px;
  color:rgba(255,255,255,0.52);
  letter-spacing:0.04em;
  z-index:10;
}

/* background effects */

.bg-glow{
  position:fixed;
  border-radius:50%;
  filter:blur(120px);
  opacity:0.34;
  pointer-events:none;
  z-index:1;
}

.glow-1{
  width:420px;
  height:420px;
  top:-120px;
  left:-120px;
  background:#ff0000;
}

.glow-2{
  width:380px;
  height:380px;
  right:-120px;
  bottom:-120px;
  background:#ffffff;
}

.grid-overlay{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:2;
  background-image:
    linear-gradient(rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size:42px 42px;
  opacity:0.32;
}

/* animation */

@keyframes shine{
  0%{
    background-position:0% center;
  }
  100%{
    background-position:220% center;
  }
}

/* tablets */

@media (max-width: 900px){
  .hero{
    padding:118px 18px 88px;
  }

  h1{
    font-size:clamp(38px, 8vw, 72px);
    line-height:1.04;
  }

  .subtitle{
    font-size:18px;
  }

  .platforms{
    font-size:13px;
    letter-spacing:0.12em;
  }
}

/* phones */

@media (max-width: 640px){
  .top-badge{
    top:16px;
    padding:0 12px;
  }

  .ua-badge{
    padding:9px 14px;
    font-size:10px;
    letter-spacing:0.08em;
    gap:8px;
  }

  .flag{
    font-size:18px;
  }

  .hero{
    min-height:100dvh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:0 16px 0;
  }

  .hero-content{
    width:100%;
    max-width:330px;
    margin:0 auto;
    padding:0;
    text-align:center;
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    transform:translateY(-12px);
  }

  h1{
    width:100%;
    font-size:clamp(38px, 12vw, 56px);
    line-height:1.05;
    letter-spacing:-0.04em;
    margin-bottom:18px;
    text-align:center;
  }

  .subtitle{
    width:100%;
    font-size:16px;
    line-height:1.5;
    margin-bottom:14px;
    text-align:center;
  }

  .platforms{
    width:100%;
    font-size:11px;
    letter-spacing:0.1em;
    line-height:1.6;
    margin-bottom:26px;
    text-align:center;
  }

  .cta-btn{
    width:100%;
    max-width:320px;
    min-height:56px;
    padding:16px 22px;
    font-size:13px;
    letter-spacing:0.08em;
  }

  .seo-text{
    margin-top:20px;
    font-size:11px;
    line-height:1.6;
  }

  .footer{
    bottom:14px;
    font-size:11px;
  }

  .glow-1{
    width:260px;
    height:260px;
    top:-80px;
    left:-80px;
    opacity:0.28;
  }

  .glow-2{
    width:240px;
    height:240px;
    right:-70px;
    bottom:-70px;
    opacity:0.22;
  }

  .grid-overlay{
    background-size:30px 30px;
    opacity:0.24;
  }
}

/* very small phones */

@media (max-width: 390px){
  h1{
    font-size:34px;
  }

  .subtitle{
    font-size:15px;
  }

  .platforms{
    font-size:10px;
  }

  .ua-badge{
    font-size:9px;
  }

  .hero-content{
    transform:translateY(-8px);
  }
}