/* High-school curriculum lecture popups */
.curriculum-head{background:linear-gradient(135deg,#e7f2ff,#e8f8f1);border:1px solid var(--line);border-radius:22px;padding:20px;margin-bottom:14px}.curriculum-filters{display:flex;gap:8px;overflow-x:auto;margin:12px 0}.curriculum-filters button{flex:0 0 auto}.curriculum-card{position:relative}.curriculum-meta{display:flex;gap:7px;flex-wrap:wrap;margin:7px 0}.curriculum-meta span{font-size:11px;font-weight:800;padding:4px 9px;border-radius:999px;background:var(--primary-soft);color:var(--primary)}.curriculum-meta .weight{background:var(--mint);color:var(--mint-ink)}
.lecture-modal{position:fixed;inset:0;z-index:100;background:rgba(16,31,54,.48);display:flex;align-items:flex-end;justify-content:center;padding:12px}
.lecture-dialog{width:min(720px,100%);height:min(94dvh,980px);max-height:94dvh;display:flex;flex-direction:column;overflow:hidden;background:#fff;color:var(--ink);border-radius:26px 26px 18px 18px;border:1px solid var(--line);box-shadow:0 20px 60px rgba(20,45,80,.22)}
.lecture-modal-head{flex:0 0 auto;display:flex;align-items:center;gap:10px;padding:15px 18px;background:#fff;border-bottom:1px solid var(--line)}.lecture-modal-head h2{font-size:20px;margin:0;line-height:1.3}.lecture-close{margin-left:auto;border:none;width:38px;height:38px;border-radius:12px;background:var(--primary-soft);color:var(--primary);font-size:23px}
.lecture-content{flex:1 1 auto;min-height:0;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;padding:18px 18px calc(28px + env(safe-area-inset-bottom));scroll-behavior:smooth}
.lecture-content h3{margin:22px 0 8px;font-size:17px}.lecture-content p,.lecture-content li{font-size:15px;line-height:1.85}.lecture-content ul{padding-left:20px}.lecture-note{background:var(--primary-soft);border:1px solid #cfe4ff;border-radius:16px;padding:14px;margin:12px 0;line-height:1.75}.lecture-example2{background:var(--cream);border:1px solid #f1dfa1;border-radius:16px;padding:15px;margin:10px 0;line-height:1.75}.lecture-trap{background:var(--pink);border:1px solid #efcad5;border-radius:16px;padding:14px;margin:12px 0;line-height:1.75}.lecture-check{background:var(--mint);border:1px solid #cbeade;border-radius:16px;padding:14px;margin:12px 0;line-height:1.75}.reading-body{white-space:pre-wrap;font-family:Georgia,"Times New Roman",serif;font-size:16px;line-height:2}.reading-preview{font-family:Georgia,"Times New Roman",serif;line-height:1.8}.level-basic{background:#e9f4ff!important;color:#286cae!important}.level-mid{background:#e8f8ef!important;color:#23815f!important}.level-high{background:#f3ecff!important;color:#7658b7!important}
@media(max-width:480px){.lecture-modal{padding:0}.lecture-dialog{width:100vw;height:100dvh;max-height:100dvh;border-radius:0}.lecture-content{padding:15px 15px calc(30px + env(safe-area-inset-bottom))}.lecture-modal-head h2{font-size:18px}}