:root {
  --bg: #f5f7fa;
  --fg: #111;
  --sub: #555;
  --box-bg: rgba(255, 255, 255, 0.6);
  --box-border: rgba(0, 0, 0, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1c22;
    --fg: #f1f1f1;
    --sub: #a4a4a4;
    --box-bg: rgba(255, 255, 255, 0.06);
    --box-border: rgba(255, 255, 255, 0.1);
  }
}

:root[data-theme="light"] {
  --bg: #f7f9fc;
  --fg: #111827;
  --sub: #6b7280;
  --box-bg: rgba(255, 255, 255, 0.65);
  --box-border: rgba(0, 0, 0, 0.1);
}

:root[data-theme="dark"] {
  --bg: #1b1e26;
  --fg: #e8ecf2;
  --sub: #9aa0ad;
  --box-bg: rgba(255, 255, 255, 0.05);
  --box-border: rgba(255, 255, 255, 0.1);
}

body {
  margin: 0;
  background: var(--bg);
  font-family: Inter, system-ui, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  overflow: hidden;
  color: var(--fg);
  position: relative;
}

.star {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--fg);
  border-radius: 50%;
  opacity: 0.4;
  animation: float 4s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0); opacity: 0.3; }
  50% { transform: translateY(-12px); opacity: 0.8; }
  100% { transform: translateY(0); opacity: 0.3; }
}

.container {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 50px 60px;
  background: var(--box-bg);
  backdrop-filter: blur(12px);
  border-radius: 18px;
  border: 1px solid var(--box-border);
  max-width: 780px;
  width: 90%;
  position: relative;
  z-index: 10;
}

.avatar img {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 20px;
}

.info h1 {
  font-size: 34px;
  margin: 0 0 10px;
}

.info p {
  color: var(--sub);
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 22px;
}

.links a {
  margin-right: 20px;
  color: var(--fg);
  text-decoration: none;
  font-size: 16px;
  transition: 0.2s;
}
.links a:hover {
  opacity: 0.6;
}

.theme-btn {
  position: fixed;
  top: 25px;
  right: 25px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 8px;
  border: 1px solid var(--box-border);
  background: var(--box-bg);
  backdrop-filter: blur(12px);
  cursor: pointer;
  color: var(--fg);
  font-size: 18px;
  transition: 0.25s;
}
.theme-btn:hover {
  opacity: 0.7;
}

@media (max-width: 600px) {

  body {
    padding: 20px;
    height: auto;
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
  }

  .container {
    flex-direction: column;
    padding: 35px 28px;
    gap: 22px;
    width: 100%;
    max-width: 400px;
    margin-top: 40px;
  }

  .avatar {
    width: 90px;
    height: 90px;
    font-size: 20px;
  }

  .info h1 {
    font-size: 28px;
  }

  .info p {
    font-size: 15px;
    margin-bottom: 18px;
  }

  .links a {
    display: inline-block;
    margin-bottom: 10px;
    font-size: 15px;
  }

  .theme-btn {
    top: 18px;
    right: 18px;
    padding: 8px 10px;
    font-size: 16px;
  }
}