:root{
  --ink:#121212;           /* richer than pure black */
  --offwhite:#f4f3ee;
  --muted:#8e9399;
  --accent:#6e9e45;

  --radius:12px;
  --max:1100px;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:"Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background:var(--offwhite);
  color:var(--ink);
}

/* ================= HEADER ================= */

.header{
  background:var(--ink);
  border-bottom:1px solid rgba(255,255,255,.06);
}

.container{
  max-width:var(--max);
  margin:0 auto;
  padding:0 28px;
}

.nav{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  padding:20px 0;
}

.brand{
  color:#ffffff;
  font-weight:600;
  font-size:16px;
  letter-spacing:.4px;
  text-decoration:none;
}

.logo-link{
  display:flex;
  justify-content:center;
  align-items:center;
  padding:6px 10px;
  transition:transform .15s ease;
}

.logo-link img{
  height:42px;
  width:auto;
  display:block;
}

.logo-link:hover{
  transform:translateY(-1px);
}

.links{
  display:flex;
  justify-content:flex-end;
  gap:26px;
}

.links a{
  color:rgba(255,255,255,.65);
  text-decoration:none;
  font-weight:500;
  font-size:14px;
  letter-spacing:.3px;
  transition:color .15s ease;
}

.links a:hover{
  color:#ffffff;
}

/* ================= HERO ================= */

.hero{
  padding:88px 0 36px;
}

.h1{
  font-size:clamp(40px,4vw,60px);
  line-height:1.05;
  margin:0 0 20px;
  font-weight:600;
  letter-spacing:-.4px;
}

.sub{
  max-width:68ch;
  font-size:17px;
  line-height:1.65;
  color:rgba(0,0,0,.72);
  margin:0;
}

/* ================= TILES ================= */

.grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:28px;
  margin-top:42px;
}

.card{
  grid-column:span 4;
  padding:34px;
  border-radius:var(--radius);
  background:var(--ink);
  color:#fff;
  border:1px solid rgba(255,255,255,.06);
  transition:all .2s ease;

  transform:translateY(16px);
  opacity:0;
  animation:slideUp .55s ease forwards;
}

.card:nth-child(1){animation-delay:.05s}
.card:nth-child(2){animation-delay:.1s}
.card:nth-child(3){animation-delay:.15s}

@keyframes slideUp{
  to{transform:translateY(0);opacity:1;}
}

.card:hover{
  transform:translateY(-4px);
  border-color:rgba(255,255,255,.15);
}

.card h3{
  margin:0 0 14px;
  font-weight:600;
  font-size:20px;
  letter-spacing:.2px;
}

.card p{
  margin:0 0 26px;
  color:rgba(255,255,255,.72);
  line-height:1.6;
  font-size:15px;
}

/* ================= BUTTONS ================= */

.btn{
  display:inline-block;
  padding:10px 18px;
  border-radius:6px;
  font-weight:600;
  font-size:14px;
  text-decoration:none;
  transition:all .15s ease;
}

.btn.primary{
  background:#ffffff;
  color:#000000;
  border:1px solid #ffffff;
}

.btn.primary:hover{
  background:#f1f1f1;
  transform:translateY(-1px);
}

/* ================= FOOTER ================= */

.footer{
  margin-top:80px;
  padding:36px 0;
  border-top:1px solid rgba(0,0,0,.08);
  font-size:13px;
  color:rgba(0,0,0,.60);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
}

@media(max-width:900px){
  .card{grid-column:span 12;}
  .nav{grid-template-columns:1fr;}
  .links{justify-content:flex-start;margin-top:12px;}
}