:root{
  --pink:#ffb6c1;
  --lemon:#ffe135;
  --indigo:#4b0082;
  --raspberry:#ff1493;
  --paper:#fffafc;
  --sand:#faf0e6;
  --ink:#222;
  --muted:#ddd;
}

/* CSS Reset */
*{ box-sizing:border-box; }
html,body{ margin:0; padding:0; }
img{ max-width:100%; height:auto; display:block; }

body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans";
  line-height:1.5;
  color:var(--ink);
  background:#fff;
}

/* Focus visible for keyboard users */
:focus-visible{
  outline: 3px solid var(--raspberry);
  outline-offset: 2px;
}

/* Header */
.site-header{
  background:var(--pink);
  text-align:center;
  padding:1.25rem 1rem;
}
.site-header .brand{
  display:inline-flex;
  align-items:center;
  gap:.75rem;
  text-decoration:none;
}
.brand-title{
  font-size:1.75rem;
  font-weight:800;
  color:var(--indigo);
}
.tagline{ margin:.25rem 0 0; font-weight:500; }

/* Primary Nav */
.primary-nav{
  background:var(--lemon);
}
.primary-nav ul{
  list-style:none;
  display:flex;
  gap:1.25rem;
  justify-content:center;
  padding:.75rem 1rem;
  margin:0;
}
.primary-nav a{
  text-decoration:none;
  color:#000;
  font-weight:700;
}
.primary-nav a:hover,
.primary-nav a:focus,
.primary-nav a.active{
  color:var(--raspberry);
}

/* Layout */
.container{
  display:grid;
  grid-template-columns: 2fr 1fr;
  gap:1rem;
  padding:1rem;
}
@media (max-width: 900px){
  .container{ grid-template-columns: 1fr; }
}

/* Main */
main{
  background:var(--paper);
  padding:1rem;
  border:1px solid var(--muted);
  border-radius:12px;
}
.feature{ margin-top:1rem; }
.cards{
  list-style:none;
  padding:0;
  margin:.75rem 0 0;
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap:1rem;
}
@media (max-width: 900px){
  .cards{ grid-template-columns: 1fr; }
}
.card{
  background:white;
  border:1px solid var(--muted);
  border-radius:12px;
  padding:1rem;
}
.button{
  display:inline-block;
  margin-top:.5rem;
  padding:.5rem .9rem;
  border-radius:999px;
  text-decoration:none;
  background:var(--indigo);
  color:white;
  font-weight:700;
}
.button:hover,
.button:focus{ filter:brightness(1.05); }

/* Sidebar */
.sidebar{
  background:var(--sand);
  padding:1rem;
  border:1px solid var(--muted);
  border-radius:12px;
}
.panel + .panel{ margin-top:1rem; }
.bullet{ padding-left:1.1rem; }

/* Footer */
.site-footer{
  margin-top:1rem;
  background:var(--muted);
  text-align:center;
  padding:.9rem 1rem;
  font-size:.95rem;
}