*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  color-scheme: light dark;
  --bg: #f5f6f8;
  --glow: radial-gradient(900px 480px at 50% -12%, #dfe7f5 0%, rgba(223, 231, 245, 0) 62%);
  --card: #ffffff;
  --fg: #111318;
  --muted: #5b6472;
  --border: #e2e6ed;
  --border-strong: #c9d0db;
  --hover: #f3f6fb;
  --accent: #2563eb;
  --shadow: 0 18px 40px -18px rgba(16, 24, 40, 0.18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d11;
    --glow: radial-gradient(900px 480px at 50% -12%, #16202f 0%, rgba(22, 32, 47, 0) 62%);
    --card: #11141a;
    --fg: #e9ecf1;
    --muted: #98a1ae;
    --border: #232936;
    --border-strong: #384152;
    --hover: #171c26;
    --accent: #6f9bff;
    --shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.55);
  }
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
  background: var(--glow), var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.card {
  width: 100%;
  max-width: 540px;
  padding: 44px 36px 32px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.identity {
  text-align: center;
}

.avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  object-fit: cover;
  display: inline-block;
  border: 1px solid var(--border-strong);
  box-shadow: 0 4px 14px -6px rgba(16, 24, 40, 0.3);
}

.avatar--fallback {
  display: inline-grid;
  place-items: center;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #ffffff;
  background: linear-gradient(145deg, #3b5bdb, #1f3a8a);
}

h1 {
  margin: 18px 0 0;
  font-size: clamp(1.35rem, 1.1rem + 1vw, 1.6rem);
  font-weight: 650;
  letter-spacing: -0.015em;
}

.tagline {
  margin: 8px auto 0;
  max-width: 42ch;
  color: var(--muted);
  font-size: 0.95rem;
  text-wrap: balance;
}

.links {
  display: grid;
  gap: 10px;
  margin-top: 30px;
}

.link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  color: inherit;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 550;
  transition: background-color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
}

.link:hover {
  background: var(--hover);
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.link:active {
  transform: translateY(0);
}

.link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.link__icon {
  display: inline-flex;
  flex: none;
}

.link__icon svg {
  width: 19px;
  height: 19px;
  display: block;
}

.footer {
  margin-top: 30px;
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem;
}

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

@media (max-width: 480px) {
  .card {
    padding: 34px 20px 26px;
    border-radius: 18px;
  }
}