/* ---------------
   CSS Variables
   --------------- */
   :root {
    --bg: #f3f5f7;
    --card-bg: #ffffff;
    --accent: #0066ff;
    --text: #1d1d1d;
    --muted: #777;
    --radius: 14px;
    --shadow: 0 8px 22px rgba(0, 0, 0, 0.12);
    --shadow-hover: 0 12px 26px rgba(0, 0, 0, 0.18);
  }
  
  /* ---------------
     Global reset
     --------------- */
  *,
  *::before,
  *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  }
  
  body {
    background: var(--bg);
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 1.2rem;
  }
  
  /* ---------------
     Card styling
     --------------- */
  .card {
    width: 100%;
    max-width: 420px;
    text-align: center;
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem 1.5rem;
    transition: box-shadow 0.25s;
  }
  .card:hover {
    box-shadow: var(--shadow-hover);
  }
  
  #profile-pic {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 50%;
    margin-bottom: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  }
  
  h1 {
    font-size: 1.6rem;
    color: var(--text);
  }
  
  #bio {
    color: var(--muted);
    font-size: 0.95rem;
    margin: 0.6rem 0 1rem;
  }
  
  /* ---------------
     Link styles
     --------------- */
  .links {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin-bottom: 1rem;
  }
  .social-link {
    text-decoration: none;
    color: var(--accent);
    font-weight: 600;
    background: rgba(0, 102, 255, 0.08);
    padding: 0.55rem;
    border-radius: var(--radius);
    transition: background 0.25s;
  }
  .social-link:hover {
    background: rgba(0, 102, 255, 0.15);
  }
  
  /* Hidden extra links default */
  .extra {
    display: none;
  }
  
  /* ---------------
     Buttons
     --------------- */
  button {
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    border-radius: var(--radius);
    padding: 0.65rem 1rem;
    width: 100%;
  }
  
  .toggle-btn {
    background: transparent;
    color: var(--accent);
    margin-top: -0.2rem;
    margin-bottom: 0.8rem;
  }
  
  .contact-btn {
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
    transition: transform 0.2s;
  }
  .contact-btn:active {
    transform: translateY(1px);
  }