:root {
  color-scheme: light dark;
  --bg-overlay: rgba(0, 0, 0, 0.55);
  --bg-blur: blur(8px);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --accent: rgba(255, 255, 255, 0.12);
  --accent-hover: rgba(255, 255, 255, 0.24);
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Poppins', system-ui, sans-serif;
  color: var(--text-primary);
  display: grid;
  place-items: center;
  background: #070707
    url('https://images.unsplash.com/photo-1500530855697-b586d89ba3ee?auto=format&fit=crop&w=1800&q=80')
    center/cover no-repeat fixed;
}

.hero {
  width: min(90vw, 440px);
  padding: 3.25rem 2.75rem;
  border-radius: 28px;
  background: var(--bg-overlay);
  backdrop-filter: var(--bg-blur);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
}

.header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
}

.avatar {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
}

.title {
  margin: 0;
  font-size: clamp(2rem, 1.6rem + 1.2vw, 2.6rem);
  letter-spacing: 0.04em;
}

.subtitle {
  margin: 0;
  color: var(--text-secondary);
  font-weight: 300;
}

.links {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.9rem 1.1rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  background: var(--accent);
  border: 1px solid rgba(255, 255, 255, 0.25);
  transition: transform 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.link:hover,
.link:focus {
  transform: translateY(-2px);
  background: var(--accent-hover);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.25);
}

.icon {
  margin-left: 0.4rem;
  font-size: 1.05em;
  vertical-align: middle;
}

.footer {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

@media (max-width: 640px) {
  .hero {
    width: min(94vw, 400px);
    padding: 3rem 2.2rem;
    gap: 1.8rem;
  }

  .avatar {
    width: 180px;
    height: 180px;
  }

  .link {
    padding: 0.85rem 1.05rem;
  }
}

@media (max-width: 420px) {
  .hero {
    width: 100%;
    padding: 2.6rem 1.6rem;
    border-radius: 22px;
    gap: 1.6rem;
  }

  .avatar {
    width: 150px;
    height: 150px;
  }

  .title {
    font-size: clamp(1.8rem, 5vw, 2.2rem);
  }

  .subtitle {
    font-size: 0.95rem;
  }

  .link {
    width: 100%;
  }
}

@media (max-width: 320px) {
  .hero {
    padding: 2.3rem 1.3rem;
  }

  .avatar {
    width: 130px;
    height: 130px;
  }

  .link {
    font-size: 0.95rem;
    padding: 0.8rem 0.95rem;
  }
}