.sbr-wrap{--sbr-primary:#244393;max-width:1240px;margin:0 auto;padding:32px 20px;box-sizing:border-box;color:#1f2937}
.sbr-wrap *{box-sizing:border-box}
/* filters */
.sbr-filters{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;margin-bottom:28px}
.sbr-tabs{display:flex;flex-wrap:wrap;gap:8px}
.sbr-tabs button{border:2px solid var(--sbr-primary);background:#fff;color:var(--sbr-primary);padding:8px 18px;border-radius:30px;font-weight:600;cursor:pointer;font-size:14px;transition:.2s}
.sbr-tabs button:hover,.sbr-tabs button.is-active{background:var(--sbr-primary);color:#fff}
.sbr-year{padding:9px 14px;border:2px solid var(--sbr-primary);border-radius:8px;color:var(--sbr-primary);font-weight:600;background:#fff}
/* grid + cards */
.sbr-grid{display:grid;grid-template-columns:repeat(var(--sbr-cols,3),minmax(0,1fr));gap:28px}
.sbr-card{background:#fff;border:1px solid #e5e9f2;border-radius:14px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 2px 10px rgba(36,67,147,.07);transition:transform .25s,box-shadow .25s}
.sbr-card:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(36,67,147,.18)}
.sbr-media{position:relative;aspect-ratio:16/10;background:#eef1f8;overflow:hidden}
.sbr-ph{width:100%;height:100%;background:linear-gradient(135deg,var(--sbr-primary),#4f6fc4)}
.sbr-badge,.sbr-year-tag{position:absolute;top:12px;z-index:3;font-size:12px;font-weight:700;padding:5px 12px;border-radius:30px;pointer-events:none}
.sbr-badge{left:12px;background:var(--sbr-primary);color:#fff}
.sbr-year-tag{right:12px;background:#fff;color:var(--sbr-primary)}
.sbr-body{padding:20px;border-top:4px solid var(--sbr-primary);display:flex;flex-direction:column;flex:1}
.sbr-card-title{margin:0 0 8px;font-size:20px;line-height:1.3}
.sbr-card-title a{color:var(--sbr-primary);text-decoration:none}
.sbr-sum{margin:0 0 16px;color:#4b5563;font-size:15px;line-height:1.6;flex:1}
.sbr-foot{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:auto}
.sbr-meta{font-size:13px;color:#6b7280}
.sbr-btn{display:inline-block;background:var(--sbr-primary);color:#fff!important;text-decoration:none;font-weight:600;font-size:14px;padding:10px 20px;border-radius:8px;border:2px solid var(--sbr-primary);cursor:pointer;transition:.2s}
.sbr-btn:hover{background:#fff;color:var(--sbr-primary)!important}
.sbr-btn-ghost{background:#fff;color:var(--sbr-primary)!important}
.sbr-btn-ghost:hover{background:var(--sbr-primary);color:#fff!important}
.sbr-empty{text-align:center;color:#6b7280;padding:30px}
/* slider */
.sbr-slider{position:relative;width:100%;height:100%}
.sbr-track{display:flex;width:100%;height:100%;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none}
.sbr-track::-webkit-scrollbar{display:none}
.sbr-slide{flex:0 0 100%;scroll-snap-align:start;height:100%}
.sbr-slide img{width:100%;height:100%;object-fit:cover;display:block;cursor:zoom-in}
.sbr-prev,.sbr-next{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:36px;height:36px;border-radius:50%;border:none;background:rgba(255,255,255,.92);color:var(--sbr-primary);font-size:24px;line-height:1;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,.2);opacity:0;transition:opacity .2s;padding:0}
.sbr-prev{left:10px}.sbr-next{right:10px}
.sbr-slider:hover .sbr-prev,.sbr-slider:hover .sbr-next{opacity:1}
.sbr-dots{position:absolute;bottom:10px;left:0;right:0;display:flex;justify-content:center;gap:6px;z-index:3}
.sbr-dots button{width:8px;height:8px;border-radius:50%;border:none;background:rgba(255,255,255,.6);padding:0;cursor:pointer}
.sbr-dots button.is-active{background:#fff;width:22px;border-radius:8px}
/* single page */
.sbr-single{max-width:960px}
.sbr-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.sbr-chip{background:var(--sbr-primary);color:#fff;font-size:13px;font-weight:700;padding:6px 14px;border-radius:30px}
.sbr-chip-alt{background:#eef1f8;color:var(--sbr-primary)}
.sbr-hero{aspect-ratio:16/9;border-radius:14px;overflow:hidden;background:#eef1f8;margin-bottom:32px;box-shadow:0 8px 28px rgba(36,67,147,.15)}
.sbr-hero .sbr-prev,.sbr-hero .sbr-next{opacity:1;width:44px;height:44px}
.sbr-hero .sbr-slide img{object-fit:contain;background:#0f1b3d}
.sbr-single h2{color:var(--sbr-primary);font-size:24px;margin:0 0 16px;padding-bottom:10px;border-bottom:3px solid var(--sbr-primary);display:inline-block}
.sbr-desc-block,.sbr-docs-block{margin-bottom:36px;line-height:1.75;font-size:17px}
.sbr-docs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.sbr-docitem{display:flex;align-items:center;gap:14px;padding:14px 16px;background:#fff;border:1px solid #dfe5f3;border-left:4px solid var(--sbr-primary);border-radius:10px;text-decoration:none;color:#1f2937;transition:.2s}
.sbr-docitem:hover{box-shadow:0 8px 20px rgba(36,67,147,.16);transform:translateY(-2px)}
.sbr-ext{flex:0 0 auto;min-width:48px;text-align:center;background:var(--sbr-primary);color:#fff;font-size:12px;font-weight:700;padding:10px 6px;border-radius:8px}
.sbr-doctext{flex:1;display:flex;flex-direction:column;min-width:0}
.sbr-doctext strong{font-size:15px;color:var(--sbr-primary);overflow-wrap:anywhere}
.sbr-doctext small{color:#6b7280}
.sbr-dl{font-size:13px;font-weight:700;color:var(--sbr-primary)}
.sbr-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}
/* students / toppers */
.sbr-stu-block{margin-bottom:36px}
.sbr-stu-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:20px}
.sbr-stu-card{background:#fff;border:1px solid #dfe5f3;border-top:4px solid var(--sbr-primary);border-radius:12px;overflow:hidden;text-align:center;box-shadow:0 2px 10px rgba(36,67,147,.07);transition:.2s}
.sbr-stu-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(36,67,147,.16)}
.sbr-stu-photo{aspect-ratio:1/1;background:#eef1f8;overflow:hidden}
.sbr-stu-photo img{width:100%;height:100%;object-fit:cover;object-position:top center;display:block;cursor:zoom-in}
.sbr-stu-text{padding:14px 14px 18px}
.sbr-stu-name{margin:0 0 6px;font-size:18px;line-height:1.3;color:var(--sbr-primary)}
.sbr-stu-subject{display:inline-block;background:#eef1f8;color:var(--sbr-primary);font-size:13px;font-weight:700;padding:4px 12px;border-radius:30px}
.sbr-stu-info{margin:10px 0 0;font-size:14px;line-height:1.55;color:#4b5563}
/* lightbox */
.sbr-lb{position:fixed;inset:0;background:rgba(10,18,40,.94);z-index:99999;display:flex;align-items:center;justify-content:center;padding:50px 60px}
.sbr-lb[hidden]{display:none}
.sbr-lb img{max-width:100%;max-height:100%;object-fit:contain;border-radius:6px}
.sbr-lb button{position:absolute;background:rgba(255,255,255,.15);color:#fff;border:none;border-radius:50%;width:44px;height:44px;font-size:28px;cursor:pointer;line-height:1;padding:0}
.sbr-lb button:hover{background:rgba(255,255,255,.3)}
.sbr-lb-x{top:14px;right:14px}.sbr-lb-p{left:12px;top:50%;transform:translateY(-50%)}.sbr-lb-n{right:12px;top:50%;transform:translateY(-50%)}
.sbr-lb-c{position:absolute;bottom:16px;left:0;right:0;text-align:center;color:#cfd9f5;font-size:14px}
/* image protection */
.sbr-protect img,.sbr-lb img{-webkit-user-drag:none;user-drag:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}
.sbr-protect{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.sbr-hide .sbr-protect img,.sbr-hide .sbr-lb img{visibility:hidden!important}
.sbr-hide .sbr-lb{background:#000}
@media print{.sbr-protect img,.sbr-lb img{display:none!important}.sbr-protect{visibility:hidden}}
/* responsive */
@media(max-width:1024px){.sbr-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){
 .sbr-wrap{padding:22px 14px}.sbr-grid{grid-template-columns:1fr;gap:20px}
 .sbr-docs{grid-template-columns:1fr}.sbr-stu-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.sbr-prev,.sbr-next{opacity:1}
 .sbr-tabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px;width:100%}.sbr-tabs button{white-space:nowrap}
 .sbr-lb{padding:50px 10px}.sbr-hero{aspect-ratio:4/3}
}