*{box-sizing:border-box;margin:0;padding:0}
    :root{
      --gap:16px;
      --max-width:1560px;
      --left:20%;
      --center:60%;
      --right:20%;
      --accent:#2563eb;
      --muted:#6b7280;
      --bg:#f8fafc;
      --card:#ffffff;
    }

    body{
      font-family: system-ui, -apple-system, "Segoe UI", Roboto;
      line-height:1.5;
      color:#111827;
      background:var(--bg);
      padding:24px;
      display:flex;justify-content:center;
    }
    .wrap{width:100%;max-width:var(--max-width);}

    header{margin-bottom:var(--gap);}

    /* NAV */
    nav{
      display:flex;align-items:center;justify-content:space-between;
      padding:12px 16px;
      border-radius:12px;background:var(--card);
      box-shadow:0 1px 2px rgba(0,0,0,0.04);
      margin-bottom:var(--gap);
      position:relative;
    }
    .brand{font-weight:700;color:var(--accent)}

    .nav-links{
      display:flex;gap:12px;
    }
    .nav-links a{color:var(--muted);text-decoration:none;font-weight:600}
    .nav-links a:hover{color:var(--accent)}

    /* Hamburger */
    .hamburger{
      display:none;
      flex-direction:column;
      gap:4px;
      cursor:pointer;
    }
    .hamburger span{
      width:24px;height:3px;background:#111827;border-radius:2px;
    }

    /* Mobile collapsible menu */
    .mobile-menu{
      display:none;
      flex-direction:column;
      gap:12px;
      padding:12px 0;
    }
    .mobile-menu a{
      color:var(--muted);text-decoration:none;font-weight:600;
      padding:8px 0;
    }
    .mobile-menu.show{display:flex;}

    /* HERO */
    .hero{
      padding:28px;border-radius:12px;background:linear-gradient(180deg,#fff,#f1f5f9);
      box-shadow:0 2px 6px rgba(16,24,40,0.05);
      margin-bottom:var(--gap);
    }
    .hero h1{font-size:1.6rem;margin-bottom:8px}
    .hero p{color:var(--muted)}

    /* GRID */
    main.content-grid{
      display:grid;
      grid-template-columns: var(--left) var(--center) var(--right);
      gap:var(--gap);
    }
    .col{background:var(--card);padding:16px;border-radius:12px;box-shadow:0 1px 3px rgba(2,6,23,0.04)}

    @media (max-width:900px){
      main.content-grid{grid-template-columns: 1fr 1fr;}
      .center-col{grid-column:1/-1}
    }

    @media (max-width:620px){
      .nav-links{display:none}
      .hamburger{display:flex}

      main.content-grid{grid-template-columns:1fr;}
      .left-col,.center-col,.right-col{grid-column:auto}
    }
      /* Inner grid inside main column */
    .inner-grid{
      margin-top:16px;
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:16px;
    }
    .ig-item{
      background:var(--bg);
      padding:12px;
      border-radius:8px;
    }

    @media(max-width:900px){
      .inner-grid{grid-template-columns:repeat(2,1fr);}    
    }

    @media(max-width:620px){
      .inner-grid{grid-template-columns:1fr;}    
    }
    
    
article.card {
	
	background-color: #ffffef 	
}

article.card header {
	
	text-align: center;
	font-size: 2em;
}

article input.clueGuess {
	padding: 0.5em;
	font-size: 1.2rem;
}

article div.guessButton {
	width: 100%;
	text-align: center;	
	margin-top: 0.5em;
}

article div.guessButton input {
	padding: 0.3em;
	font-size: 1.2rem;
}