*{box-sizing:border-box}html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:#1b1b1b;line-height:1.5;background:#fff}

.hero{
  background:
    linear-gradient(180deg,rgba(0,0,0,.35),rgba(0,0,0,.35)),
    url('./vinhbinh-hero.jpg'),
    url('https://images.unsplash.com/photo-1503676382389-4809596d5290?q=80&w=1887&auto=format&fit=crop');
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
  min-height:220px;display:flex;align-items:flex-end
}
.hero-inner{width:100%;padding:28px 20px}
.hero h1{margin:0;color:#fff;font-size:clamp(20px,4vw,36px);text-align:center}

.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:18px 20px}
.pillar{background:#c8efc8;border-top:6px solid #4caf50;padding:14px 16px;border-radius:6px;position:relative;transition:transform .25s ease,box-shadow .25s ease}
.pillar h2{margin:0 0 6px 0;font-size:clamp(18px,2.6vw,24px)}
.pillar p{margin:0;color:#2e7d32}
.pillar:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 12px 24px rgba(0,0,0,.12)}
.pillar .popup{position:absolute;left:50%;bottom:calc(100% + 10px);transform:translate(-50%,8px) scale(.98);background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:8px 10px;box-shadow:0 8px 20px rgba(0,0,0,.12);opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease;pointer-events:none;white-space:nowrap;font-size:14px}
.pillar:hover .popup{opacity:1;visibility:visible;transform:translate(-50%,0) scale(1)}

.three-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:6px 20px 14px}
.three-cols .col{padding:10px 12px;border:1px solid #e5e7eb;border-radius:8px;background:#fff;position:relative;transition:transform .25s ease,box-shadow .25s ease}
.three-cols .col:hover{transform:translateY(-6px) scale(1.02);box-shadow:0 12px 24px rgba(0,0,0,.12)}
.three-cols .col .popup{position:absolute;left:50%;bottom:calc(100% + 10px);transform:translate(-50%,8px) scale(.98);background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:8px 10px;box-shadow:0 8px 20px rgba(0,0,0,.12);opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease;pointer-events:none;white-space:nowrap;font-size:14px}
.three-cols .col:hover .popup{opacity:1;visibility:visible;transform:translate(-50%,0) scale(1)}
.three-cols h3{margin:2px 0 6px 0;color:#1b5e20}
.three-cols ul{margin:0 0 8px 16px;padding:0}
.muted{color:#6b7280;font-size:14px;margin:0}

.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding:6px 20px 24px}
.card{margin:0}
.img.placeholder{height:180px;border-radius:10px;background:linear-gradient(135deg,#e6f4ea,#d0ebff);border:1px dashed #9e9e9e;transition:transform .25s ease,box-shadow .25s ease}
.card:hover .img.placeholder{transform:translateY(-6px) scale(1.02);box-shadow:0 12px 24px rgba(0,0,0,.12)}
.hover-label{position:relative;overflow:hidden;border-radius:10px}
.hover-label img{display:block;width:100%;height:220px;object-fit:cover;transition:transform .25s ease,filter .25s ease}
.hover-label figcaption{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.48);color:#fff;font-weight:700;letter-spacing:.4px;text-transform:uppercase;opacity:0;transition:opacity .2s ease}
.hover-label:hover figcaption{opacity:1}
.hover-label:hover img{transform:scale(1.05);filter:saturate(1.1)}

.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.6,0,1);transition-delay:var(--d,0ms)}
.reveal-visible{opacity:1;transform:translateY(0)}

.site-footer{background:#c8efc8;border-top:6px solid #4caf50}
.footer-inner{padding:12px 20px;text-align:center}
.credit{margin:6px 0 0 0;color:#1b1b1b}
.contact{margin:2px 0;color:#1b1b1b;font-size:14px}
.contact a{color:#0a5; text-decoration:none}
.contact a:hover{text-decoration:underline}

@media (max-width: 900px){
  .pillars,.three-cols{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
}

@media (prefers-reduced-motion: reduce){
  .pillar,.three-cols .col,.img.placeholder,.reveal{transition:none}
}