:root{
  --bg: #0f0f10;
  --fg: #f5f5f7;
  --muted:#b7b7c0;
  --accent:#e1ff6b; /* limey accent for pop */
  --card:#17171a;
  --shadow: 0 6px 24px rgba(0,0,0,.35);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family: system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;scroll-behavior:smooth}
img{max-width:100%;display:block;height:auto}

.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
.small{font-size:.9rem;color:var(--muted)}

.site-header{
  position:sticky;top:0;z-index:50;background:rgba(15,15,16,.7);backdrop-filter: blur(8px);
  border-bottom:1px solid #1f1f22
}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;flex-direction:column;text-decoration:none;color:var(--fg)}
.logo{font-weight:800;letter-spacing:.5px}
.amp{color:var(--accent)}
.tagline{font-size:.8rem;color:var(--muted);margin-top:2px}
.nav a{color:var(--fg);text-decoration:none;margin-left:18px}
.nav a.btn{margin-left:24px}

.btn{
  display:inline-block;padding:12px 18px;border:1px solid #2a2a2e;border-radius:999px;text-decoration:none;color:var(--fg);
  background:linear-gradient(180deg,#1b1b1f,#141417);box-shadow:var(--shadow);transition:transform .04s ease, box-shadow .2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:linear-gradient(180deg,#2b2b30,#18181c);border-color:#36363a}
.btn:focus{outline:2px solid var(--accent);outline-offset:2px}

.hero{
  padding:96px 0 72px;
  background: radial-gradient(1200px 500px at 50% -50%, rgba(225,255,107,.2), transparent 60%);
  text-align:center
}
.hero h1{font-size: clamp(28px, 4vw, 48px);margin:0 0 12px}
.hero p{color:var(--muted);margin:0 0 20px}

.portfolio{padding:56px 0}
.portfolio h2, .about h2{font-size: clamp(24px,3vw,36px);margin:0 0 18px}
.grid{
  display:grid;
  grid-template-columns: repeat(12, 1fr);
  gap:12px
}
.tile{
  grid-column: span 4;
  border-radius:12px;overflow:hidden;background:var(--card);box-shadow:var(--shadow)
}
.tile img{aspect-ratio: 4/3; object-fit: cover;}

@media (max-width: 900px){ .tile{grid-column: span 6;} }
@media (max-width: 560px){ .tile{grid-column: span 12;} }

.lightbox{
  position:fixed;inset:0;background:rgba(0,0,0,.9);display:none;align-items:center;justify-content:center;padding:24px
}
.lightbox.open{display:flex}
.lightbox img{max-width:min(1200px,96vw);max-height:80vh;border-radius:12px;box-shadow:var(--shadow)}
.lightbox .close{
  position:absolute;top:16px;right:16px;border:0;background:transparent;color:#fff;font-size:44px;line-height:1;cursor:pointer
}

.about{padding:56px 0;background:linear-gradient(180deg,#101012,#0f0f10)}
.about-flex{display:grid;grid-template-columns:1fr;gap:18px}
.about p{color:var(--fg);line-height:1.7}
.about .btn{margin-top:12px}

.site-footer{padding:28px 0;border-top:1px solid #1f1f22}
.site-footer .wrap{display:flex;flex-direction:column;gap:6px;align-items:center;text-align:center}