.course-header{z-index:50;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#070809c7;border-bottom:1px solid #ffffff14;position:sticky;top:0}.site-shell [id]{scroll-margin-top:5rem}.term-replay{position:relative}.term-line{min-height:1.5em;position:relative}.term-cursor-abs{margin-left:0;position:absolute;top:.2em;left:0}.term-cursor{vertical-align:-.15em;background:var(--lime,#c8ff63);width:.55em;height:1.05em;margin-left:.35em;animation:1s step-end infinite term-blink;display:inline-block}@keyframes term-blink{50%{opacity:0}}@media (prefers-reduced-motion:reduce){.term-cursor{animation:none}}.term-actions{justify-content:space-between;align-items:center;padding-top:.75rem;display:flex}.term-replay-btn{font:inherit;color:var(--ink-muted,#a9afa9);border:1px solid var(--border,#ffffff1c);cursor:pointer;background:0 0;border-radius:.45rem;padding:.2rem .6rem;font-size:11px}.term-replay-btn:hover:not(:disabled){color:var(--foreground,#f5f6ef)}.term-replay-btn:disabled{opacity:.4;cursor:default}.term-replay-btn:focus-visible{outline:2px solid var(--lime,#c8ff63);outline-offset:2px}.wl-dialog{--w-bg:#0e1012;--w-fg:#f2f3ec;--w-muted:#a9afa9;--w-border:#ffffff1f;--w-input:#070809;--w-accent:#c8ff63;--w-accent-ink:#0a0b09;width:100%;max-width:min(28rem,100vw - 2rem);color:var(--w-fg);background:0 0;border:0;margin:auto;padding:0}.lesson .wl-dialog{--w-bg:var(--l-panel);--w-fg:var(--l-fg);--w-muted:var(--l-muted);--w-border:var(--l-border);--w-input:var(--l-code);--w-accent:var(--l-accent);--w-accent-ink:var(--l-accent-ink)}.wl-dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#0009}.wl-card{background:var(--w-bg);border:1px solid var(--w-border);border-radius:1rem;padding:1.5rem;position:relative;box-shadow:0 20px 60px #0006}.wl-x{color:var(--w-muted);cursor:pointer;background:0 0;border:0;font-size:1.4rem;line-height:1;position:absolute;top:.6rem;right:.8rem}.wl-kicker{letter-spacing:.14em;text-transform:uppercase;color:var(--w-accent);font-family:ui-monospace,monospace;font-size:.7rem}.wl-dialog .wl-title{margin-top:.4rem;scroll-margin-top:0;font-size:1.35rem;font-weight:700}.wl-p{color:var(--w-muted);margin-top:.5rem;font-size:.92rem;line-height:1.6}.wl-label{margin-top:1rem;font-size:.85rem;font-weight:600;display:block}.wl-opt{color:var(--w-muted);font-weight:400}.wl-input{border:1px solid var(--w-border);background:var(--w-input);width:100%;color:var(--w-fg);font:inherit;resize:vertical;border-radius:.6rem;margin-top:.35rem;padding:.65rem .8rem;font-size:.95rem;display:block}.wl-input:focus{outline:2px solid var(--w-accent);outline-offset:1px}.wl-input[aria-invalid]{border-color:#ff7a7a}.wl-err{color:#ff7a7a;margin-top:.6rem;font-size:.85rem}.wl-btn{background:var(--w-accent);width:100%;color:var(--w-accent-ink);cursor:pointer;border:0;border-radius:999px;margin-top:1.1rem;padding:.75rem 1rem;font-size:.95rem;font-weight:650;display:block}.wl-btn:disabled{opacity:.6}.wl-btn:focus-visible,.wl-x:focus-visible{outline:2px solid var(--w-fg);outline-offset:2px}.wl-fine{text-align:center;color:var(--w-muted);margin-top:.7rem;font-size:.78rem}dialog.wl-dialog[open]{height:fit-content;max-height:calc(100dvh - 2rem);margin:auto;position:fixed;inset:0;overflow:auto}.lesson .wl-dialog h2.wl-title{margin-top:.4rem;font-size:1.35rem}