:root{--bv-admin-deep:#0b4f49;--bv-admin:#0b6b63;--bv-admin-soft:#eaf6f3;--bv-admin-line:#c7ddd8;--bv-admin-ink:#18312f;--bv-admin-muted:#4c6763;--bv-admin-gold:#f2c14e;--bv-admin-coral:#d95f52}
body.bv512-admin{background:#f4f7f6!important;color:var(--bv-admin-ink)!important}
.bv512-admin .wrap{max-width:1480px!important;padding-top:18px!important}
.bv512-admin .site-header{background:#fff!important;border-bottom:1px solid var(--bv-admin-line)!important;box-shadow:0 4px 18px rgba(9,65,59,.08)!important}
.bv512-admin .admin-topnav{position:sticky!important;top:73px!important;z-index:500!important;display:flex!important;align-items:center!important;gap:6px!important;flex-wrap:wrap!important;background:var(--bv-admin-deep)!important;border:0!important;border-radius:14px!important;padding:8px!important;overflow:visible!important;box-shadow:0 12px 28px rgba(8,63,57,.18)!important}
.bv512-admin .admin-topnav details{position:relative!important;margin:0!important}
.bv512-admin .admin-topnav summary{list-style:none!important;cursor:pointer!important;color:#fff!important;background:transparent!important;border-radius:9px!important;padding:10px 13px!important;font-weight:800!important;line-height:1.2!important;white-space:nowrap!important}
.bv512-admin .admin-topnav summary::-webkit-details-marker{display:none}.bv512-admin .admin-topnav summary:after{content:' ▾';font-size:.75em}
.bv512-admin .admin-topnav details[open] summary,.bv512-admin .admin-topnav summary:hover{background:rgba(255,255,255,.14)!important}
.bv512-admin .admin-topnav .menu-pop{position:absolute!important;top:calc(100% + 8px)!important;left:0!important;z-index:900!important;min-width:290px!important;max-width:360px!important;background:#fff!important;border:1px solid var(--bv-admin-line)!important;border-radius:14px!important;padding:9px!important;box-shadow:0 20px 50px rgba(12,54,49,.22)!important}
.bv512-admin .admin-topnav details:last-child .menu-pop{left:auto!important;right:0!important}
.bv512-admin .menu-pop a{display:block!important;color:#173c38!important;background:#fff!important;padding:10px 12px!important;border-radius:9px!important;text-decoration:none!important;font-weight:700!important}
.bv512-admin .menu-pop a:hover,.bv512-admin .menu-pop a:focus{background:var(--bv-admin-soft)!important;color:#064b46!important}
.bv512-admin-hero{background:#fff!important;border:1px solid var(--bv-admin-line)!important;border-left:7px solid var(--bv-admin-gold)!important;border-radius:18px!important;box-shadow:0 10px 28px rgba(15,73,67,.07)!important;padding:22px 24px!important}
.bv512-admin-hero .eyebrow{background:#e7f5f2!important;color:#075e58!important}.bv512-admin-hero h1{color:#123f3a!important}.bv512-admin-hero p{color:var(--bv-admin-muted)!important}
.bv512-admin .panel,.bv512-admin .card,.bv512-admin .bv59-course-card,.bv512-admin .bv59-detail-hero{background:#fff!important;color:var(--bv-admin-ink)!important;border:1px solid var(--bv-admin-line)!important;box-shadow:0 8px 24px rgba(20,73,67,.06)!important}
.bv512-admin .hero{background:linear-gradient(135deg,#0b6b63,#0d7d73)!important;color:#fff!important;border:0!important}.bv512-admin .hero h1,.bv512-admin .hero p,.bv512-admin .hero strong{color:#fff!important}
.bv512-admin h1,.bv512-admin h2,.bv512-admin h3{color:#103f3a}.bv512-admin p,.bv512-admin li,.bv512-admin small{color:#334f4b}
.bv512-admin .table th{background:var(--bv-admin-deep)!important;color:#fff!important}.bv512-admin .table td{background:#fff!important;color:#203d39!important;border-bottom-color:#d9e7e4!important}
.bv512-admin input,.bv512-admin select,.bv512-admin textarea{background:#fff!important;color:#172f2c!important;border:1px solid #91b4ae!important}
.bv512-admin .btn{background:var(--bv-admin)!important;color:#fff!important;border:2px solid var(--bv-admin)!important}.bv512-admin .btn.ghost,.bv512-admin .btn.secondary{background:#fff!important;color:#075e58!important;border-color:#075e58!important}
.bv512-admin .status,.bv512-admin .badge{background:#e4f3f0!important;color:#075e58!important}
.bv512-admin .sidebar{display:none!important}.bv512-admin .layout{display:block!important}
.bv512-admin .bv-course-open-note{background:#fff8dc;border:1px solid #e2bd42;color:#493c08;padding:12px 14px;border-radius:12px;margin:12px 0}
@media(max-width:900px){.bv512-admin .admin-topnav{position:relative!important;top:auto!important}.bv512-admin .admin-topnav details{width:100%}.bv512-admin .admin-topnav summary{width:100%}.bv512-admin .admin-topnav .menu-pop{position:static!important;min-width:0!important;max-width:none!important;margin-top:6px!important}.bv512-admin-hero{flex-direction:column!important;align-items:flex-start!important}}