:root{
  --bg:#f5f6f8;
  --surface:#ffffff;
  --text:#111827;      /* charcoal */
  --muted:#6b7280;     /* gray-500 */
  --accent:#dc2626;    /* red-600 (Canada-ish) */
  --accent-soft:#fee2e2; /* red-100 */
  --border:#e5e7eb;    /* gray-200 */
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
}

/* layout */
.container{max-width:1000px;margin:0 auto;padding:1rem}

/* header */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--border);
}
.site-header h1{
  margin:.35rem 0 .35rem 0;
  font-size:1.9rem;
  letter-spacing:.2px;
}
.nav-list{
  list-style:none; display:flex; gap:1rem; flex-wrap:wrap;
  padding:0; margin:.4rem 0 .9rem 0;
}
.nav-list a{
  text-decoration:none;
  color:var(--accent);
  padding:.35rem .65rem;
  border-radius:8px;
  transition:background .18s ease, color .18s ease, border-color .18s ease;
  border:1px solid transparent;
}
.nav-list a:hover{ background:var(--accent-soft) }
.nav-list a[aria-current="page"]{
  background:var(--accent-soft);
  border-color:#fca5a5; /* red-300 */
}

/* headings */
h1,h2{color:#0b1220}
h2{
  position:relative;
  margin:1.2rem 0 .6rem;
  font-size:1.35rem;
  padding-bottom:.35rem;
}
h2::after{
  content:"";
  position:absolute; left:0; bottom:0;
  width:56px; height:3px;
  background:var(--accent);
  border-radius:2px;
}

/* intro */
.intro p{ max-width:70ch }

/* grid of cards */
.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:1.5rem;
  margin:1.25rem 0;
}
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:14px;
  padding:1rem;
  box-shadow:0 1px 2px rgba(0,0,0,.06);
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{
  transform:translateY(-6px) scale(1.015);
  box-shadow:0 12px 26px rgba(0,0,0,.14);
  border-color:#fca5a5; /* subtle red tint */
}
.card h2{
  margin:.2rem 0 .5rem;
  color:var(--accent);
  font-size:1.25rem;
}
.card img{
  display:block;
  width:100%; height:auto;
  border-radius:10px;
  margin-bottom:.6rem;
}

/* links & buttons */
a{ color:var(--accent) }
a:focus-visible{ outline:3px solid #fca5a5; outline-offset:2px }

.button{
  display:inline-block;
  padding:.55rem .9rem;
  border:1px solid var(--accent);
  color:var(--accent);
  text-decoration:none;
  border-radius:10px;
  transition:background .18s ease, color .18s ease;
}
.button:hover{
  background:var(--accent);
  color:#fff;
}

/* footer */
.site-footer{
  background:var(--surface);
  border-top:1px solid var(--border);
  text-align:center;
  padding:1rem 0;
  margin-top:2rem;
  color:var(--muted);
  font-size:.95rem;
}