.pbl-page .main-area { position: relative; overflow: hidden; }
.pbl-hub { border-radius: 24px; overflow: hidden; background: rgba(255,255,255,.97); }
.pbl-intro { display:flex; align-items:center; gap:14px; padding:16px 18px; border:1px solid #dce8f6; border-radius:18px; background:linear-gradient(135deg,#f5faff,#fff); color:#27445f; }
.pbl-intro-icon { width:44px; height:44px; flex:0 0 44px; border-radius:50%; display:grid; place-items:center; background:#0b67b2; color:#fff; font-size:1.2rem; }
.pbl-grid { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:24px; }
.pbl-card { --project-image:none; position:relative; min-height:300px; border-radius:24px; overflow:hidden; display:flex; flex-direction:column; justify-content:flex-end; padding:24px; color:#fff; text-decoration:none; background-image:var(--project-image); background-size:cover; background-position:center; box-shadow:0 16px 34px rgba(18,45,77,.16); isolation:isolate; transition:transform .28s ease,box-shadow .28s ease; }
.pbl-card:first-child { grid-column:1/-1; min-height:350px; }
.pbl-card::before { content:""; position:absolute; inset:0; background:linear-gradient(180deg,rgba(5,18,34,.04) 8%,rgba(5,18,34,.22) 42%,rgba(5,18,34,.92) 100%); z-index:-1; }
.pbl-card::after { content:""; position:absolute; inset:0; border:1px solid rgba(255,255,255,.26); border-radius:inherit; pointer-events:none; }
.pbl-card:hover,.pbl-card:focus-visible { transform:translateY(-6px); box-shadow:0 22px 46px rgba(18,45,77,.25); color:#fff; }
.pbl-card:focus-visible { outline:4px solid rgba(13,110,253,.28); outline-offset:4px; }
.pbl-card-track { position:absolute; top:20px; left:20px; z-index:2; padding:8px 12px; border-radius:999px; background:rgba(255,255,255,.92); color:#0a3154; font-size:.74rem; font-weight:800; letter-spacing:.08em; text-transform:uppercase; backdrop-filter:blur(8px); }
.pbl-card-content { position:relative; z-index:2; max-width:800px; display:flex; flex-direction:column; gap:9px; padding-right:50px; }
.pbl-card-title { font-size:clamp(1.45rem,2.2vw,2.15rem); line-height:1.08; font-weight:900; text-shadow:0 2px 12px rgba(0,0,0,.25); }
.pbl-card-copy { font-size:1rem; line-height:1.55; color:rgba(255,255,255,.94); }
.pbl-card-meta { align-self:flex-start; padding:6px 10px; border-radius:999px; background:rgba(255,255,255,.92); color:#102d48; font-size:.76rem; font-weight:800; }
.pbl-card-arrow { position:absolute; right:22px; bottom:22px; z-index:2; width:42px; height:42px; border-radius:50%; display:grid; place-items:center; background:rgba(255,255,255,.92); color:#0b67b2; font-size:1.25rem; transition:transform .25s ease; }
.pbl-card:hover .pbl-card-arrow { transform:translateX(5px); }
.pbl-card-classroom::before { background:linear-gradient(180deg,rgba(18,28,70,.06),rgba(38,28,100,.85)); }
.pbl-card-tech::before,.pbl-card-cyber::before,.pbl-card-smart::before { background:linear-gradient(180deg,rgba(0,38,72,.05),rgba(0,58,112,.9)); }
.pbl-card-eco::before,.pbl-card-water::before,.pbl-card-climate::before { background:linear-gradient(180deg,rgba(0,60,45,.05),rgba(0,82,63,.9)); }
.pbl-card.reveal-ready { opacity:0; transform:translateY(18px); }
.pbl-card.reveal-ready.is-visible { opacity:1; transform:translateY(0); transition:opacity .55s ease,transform .55s ease,box-shadow .28s ease; }
@media (max-width:991.98px){ .pbl-grid{grid-template-columns:1fr;} .pbl-card:first-child{grid-column:auto;} }
@media (max-width:575.98px){ .pbl-hub{border-radius:18px;} .pbl-card,.pbl-card:first-child{min-height:310px;padding:20px;border-radius:20px;} .pbl-card-track{top:16px;left:16px;} .pbl-card-content{padding-right:38px;} .pbl-card-copy{font-size:.94rem;} .pbl-card-arrow{right:16px;bottom:16px;width:38px;height:38px;} }
@media (prefers-reduced-motion:reduce){ .pbl-card,.pbl-card-arrow{transition:none!important;} .pbl-card.reveal-ready{opacity:1;transform:none;} }