:root{
  --bg:#f7f9fb;
  --card:#ffffff;
  --muted:#666;
  --accent:#2b7a78;
  --accent-2:#dd6b20;
  --max-width:1100px;
  --radius:8px;
  --goal-size:64px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: light;
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--bg);
  color:#222;
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
}

.container{
  max-width:var(--max-width);
  margin:0 auto;
  padding:1rem;
}

.site-header{
  background:linear-gradient(90deg, rgba(43,122,120,0.95), rgba(34,106,104,0.95));
  color:#fff;
  padding:0.75rem 0;
}
.brand{margin:0;font-size:1.25rem}
.nav{list-style:none;margin:0;padding:0;display:flex;gap:1rem}
.nav a{color:rgba(255,255,255,0.95);text-decoration:none;font-weight:600}
.nav a:focus{outline:3px solid rgba(255,255,255,0.12);border-radius:4px}

.hero{
  padding:2.25rem 0;
  text-align:center;
}
.hero h2{margin:0 0 0.5rem;font-size:1.6rem}
.hero p{margin:0.25rem 0 0.75rem;color:var(--muted)}

.btn{
  display:inline-block;
  padding:0.6rem 1rem;
  background:var(--accent);
  color:#fff;
  text-decoration:none;
  border-radius:6px;
  font-weight:700;
}
.btn:hover{background:var(--accent-2)}

.lead{color:var(--muted)}

.sdg-grid{
  display:grid;
  gap:1rem;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  margin:1rem 0 2rem;
}

.sdg-card{
  background:var(--card);
  border-radius:var(--radius);
  box-shadow:0 2px 8px rgba(0,0,0,0.06);
  transition:transform .15s ease, box-shadow .15s ease;
  overflow:hidden;
}
.sdg-card:hover{transform:translateY(-6px);box-shadow:0 8px 18px rgba(0,0,0,0.08)}

.sdg-card a{
  display:flex;
  gap:1rem;
  align-items:center;
  color:inherit;
  text-decoration:none;
  padding:1rem;
  height:100%;
}
.goal-number{
  width:var(--goal-size);
  height:var(--goal-size);
  background-color:#444;
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  display:inline-flex;
  align-items:center;
  justify-content: center;
  color:#fff;
  font-weight:800;
  font-size:1rem;
  text-shadow:0 2px 6px rgba(0,0,0,0.6);
  position: relative;
  flex:0 0 auto;
}
.goal-number::before{
  content:"";
  position: absolute;
  inset:0;
  border-radius: inherit;
  background:linear-gradient(180deg, rgba(0,0,0,0.18), rgba(0,0,0,0.18));
  z-index:0;
  pointer-events: none;
}
.goal-number .goal-label{ position:relative; z-index:1; 
}

.sdg-card h4{margin:0 0 0.25rem;font-size:1.05rem}
.sdg-card p{margin:0;color:var(--muted);font-size:0.95rem}

.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

@media (max-width:640px){
  .sdg-card a{
    flex-direction:column;
    align-items:flex-start;
  }
  .goal-number{ width:56px; height:56px; }
}

.goal-1 { background-image: urlhttps://dr-aze.github.io/Final-Project/images/logo/sdg1_logo.png'); }
.goal-2 { background-image: url('/images/goal2.jpg'); }
.goal-3 { background-image: url('/images/goal3.jpg'); }
.goal-4 { background-image: url('/images/goal4.jpg'); }
.goal-5 { background-image: url('/images/goal5.jpg'); }
.goal-6 { background-image: url('/images/goal6.jpg'); }
.goal-7 { background-image: url('/images/goal7.jpg'); }
.goal-8 { background-image: url('/images/goal8.jpg'); }
.goal-9 { background-image: url('/images/goal9.jpg'); }
.goal-10{ background-image: url('/images/goal10.jpg'); }
.goal-11{ background-image: url('/images/goal11.jpg'); }
.goal-12{ background-image: url('/images/goal12.jpg'); }
.goal-13{ background-image: url('/images/goal13.jpg'); }
.goal-14{ background-image: url('/images/goal14.jpg'); }
.goal-15{ background-image: url('/images/goal15.jpg'); }
.goal-16{ background-image: url('/images/goal16.jpg'); }
.goal-17{ background-image: url('/images/goal17.jpg'); }

.take-action ul{margin:0;padding-left:1.25rem}

.site-footer{
  padding:1rem 0;
  background:#fff;
  border-top:1px solid #e6e9ee;
  margin-top:2rem;
}
.site-footer a{color:var(--accent)}