:root {
  color-scheme: dark;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  --blue: #2463f3;
  --text: #f8faff;
  --muted: #c5ccda;
}

* { box-sizing: border-box; }

html, body {
  min-height: 100%;
  margin: 0;
}

body {
  background: #0f1930;
  color: var(--text);
}

.page {
  position: relative;
  display: grid;
  min-height: 100svh;
  place-items: center;
  overflow: hidden;
  padding: 40px 20px 28px;
  background:
    radial-gradient(circle at 51% 48%, rgba(40, 82, 191, 0.32), transparent 32%),
    linear-gradient(115deg, #101a32 0%, #203f8f 53%, #111c35 100%);
}

.page::before {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 8% 90%, rgba(38, 83, 200, 0.42), transparent 34%),
    radial-gradient(circle at 91% 1%, rgba(46, 78, 174, 0.23), transparent 30%);
  content: "";
  pointer-events: none;
}

.landing {
  z-index: 1;
  display: flex;
  width: min(100%, 510px);
  flex-direction: column;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
  color: var(--text);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  text-decoration: none;
}

.brand__icon {
  display: grid;
  width: 54px;
  height: 54px;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 10px 30px rgba(36, 99, 243, 0.34);
}

.brand svg {
  width: 29px;
  fill: white;
}

.card {
  width: 100%;
  padding: 32px 36px 35px;
  border: 1px solid rgba(255,255,255,.045);
  border-radius: 29px;
  background: linear-gradient(145deg, rgba(31,46,72,.94), rgba(10,19,36,.97));
  box-shadow: 0 28px 60px rgba(2,8,24,.32);
  text-align: center;
  backdrop-filter: blur(14px);
}

.avatar-wrap {
  width: 148px;
  height: 148px;
  margin: 0 auto 25px;
  padding: 5px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff39b8, #fd238a 60%, #bf2aff);
  box-shadow: 0 0 29px rgba(255,40,161,.5), 0 13px 35px rgba(0,0,0,.26);
}

.avatar {
  display: block;
  width: 100%;
  height: 100%;
  border: 3px solid #151e34;
  border-radius: 50%;
  object-fit: cover;
}

h1 {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin: 0;
  font-size: clamp(27px, 5vw, 35px);
  font-weight: 800;
  letter-spacing: -1.5px;
}

h1 span { font-size: 20px; }

.subscribers {
  margin: 10px 0 20px;
  color: rgba(197,204,218,.65);
  font-size: 13px;
}

.description {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
}

.subscribe {
  display: flex;
  width: 100%;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  gap: 13px;
  border-radius: 16px;
  background: linear-gradient(135deg, #2670ff, #2353e9);
  box-shadow: 0 13px 30px rgba(27,80,226,.26);
  color: white;
  font-size: 16px;
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, filter 180ms ease;
}

.subscribe svg {
  width: 21px;
  fill: white;
}

.subscribe:hover {
  box-shadow: 0 16px 36px rgba(27,80,226,.43);
  filter: brightness(1.09);
  transform: translateY(-2px);
}

.subscribe:focus-visible, .brand:focus-visible {
  outline: 3px solid rgba(255,255,255,.9);
  outline-offset: 4px;
}

footer {
  margin-top: 27px;
  color: rgba(172,185,211,.42);
  font-size: 13px;
  text-align: center;
}

footer p { margin: 0 0 9px; }
footer span[aria-label] { color: rgba(255,61,151,.5); }

@media (max-width: 560px) {
  .page { padding: 25px 16px 20px; }
  .brand { margin-bottom: 22px; font-size: 24px; }
  .brand__icon { width: 48px; height: 48px; }
  .card { padding: 27px 21px 25px; border-radius: 24px; }
  .avatar-wrap { width: 124px; height: 124px; margin-bottom: 22px; }
  .description { font-size: 14px; }
  .subscribe { min-height: 55px; }
  footer { margin-top: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .subscribe { transition: none; }
}