.pds-landing,.pds-student{font-family:Inter,system-ui,-apple-system,Segoe UI,sans-serif}.pds-landing{background:radial-gradient(circle at top left,var(--pds-accent),#061126 38%,#020617);color:#fff;padding:42px;border-radius:28px;overflow:hidden}.pds-hero{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}.pds-hero h1{font-size:clamp(32px,5vw,68px);line-height:1;margin:12px 0}.pds-hero p{font-size:18px;color:#dbeafe}.pds-hero img{width:100%;border-radius:24px;box-shadow:0 25px 70px #0008}.pds-badge{background:#ffffff1a;border:1px solid #ffffff38;border-radius:999px;padding:8px 14px}.pds-price{display:flex;gap:14px;align-items:end;margin:22px 0}.pds-price strong{font-size:38px}.pds-price del{color:#fecaca}.pds-btn{display:inline-flex;background:linear-gradient(135deg,#22c55e,#2563eb);color:white!important;text-decoration:none!important;padding:14px 22px;border-radius:14px;font-weight:800;box-shadow:0 18px 40px #0003}.pds-btn.small{padding:9px 13px;font-size:13px}.pds-card,.pds-mini{background:#ffffff12;border:1px solid #ffffff24;border-radius:20px;padding:20px;margin-top:22px}.pds-class-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.pds-mini{display:flex;flex-direction:column;gap:6px}.pds-student{display:grid;grid-template-columns:260px 1fr;min-height:80vh;background:#f8fafc;border-radius:24px;overflow:hidden;position:relative}.pds-student:after{content:attr(data-watermark);position:fixed;right:24px;bottom:24px;background:#0f172acc;color:#fff;padding:10px 16px;border-radius:999px;font-size:12px;z-index:9999;pointer-events:none}.pds-student aside{background:#061126;color:#fff;padding:26px}.pds-student aside a{display:block;color:#dbeafe;text-decoration:none;padding:12px;border-radius:12px;margin:8px 0;background:#ffffff12}.pds-student main{padding:28px}.pds-top{background:linear-gradient(135deg,var(--pds-accent),#7c3aed);color:#fff;border-radius:24px;padding:24px;margin-bottom:18px}.pds-class-list{display:grid;gap:18px}.pds-lesson{background:#fff;border:1px solid #e5e7eb;border-radius:22px;padding:18px;box-shadow:0 14px 40px #0f172a0d}.pds-lesson.locked{opacity:.72}.pds-player{position:relative;width:100%;aspect-ratio:16/9;background:#020617;border-radius:18px;overflow:hidden;margin:14px 0}.pds-player iframe{width:100%;height:100%;border:0}.pds-lock{background:#fff3cd;border:1px solid #ffe69c;padding:18px;border-radius:14px;margin:16px 0}.pds-my{display:grid;gap:12px}.pds-support{margin-top:24px}@media(max-width:800px){.pds-hero,.pds-student{grid-template-columns:1fr}.pds-student aside{position:relative}.pds-landing{padding:24px}}
.pds-wm-grid{position:fixed;inset:0;z-index:9998;pointer-events:none;display:grid;grid-template-columns:repeat(5,1fr);gap:70px;opacity:.11;transform:rotate(-18deg);align-items:center;justify-items:center;color:#020617;font-weight:800;font-size:13px;user-select:none}.pds-wm-grid span{white-space:nowrap}.pds-hidden-tab main{filter:blur(8px)}.pds-hidden-tab:before{content:'Protected course paused';position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#020617cc;color:white;font-size:28px;font-weight:900;z-index:10000}
@media print{.pds-student{display:none!important}body:before{content:'Printing is disabled for protected PDS course content.';display:block;font-size:24px;padding:40px}}