:root{--background:#fff;--foreground:#171717;--muted:#666}@media (prefers-color-scheme:dark){:root{--background:#0a0a0a;--foreground:#ededed;--muted:#a0a0a0}}*{box-sizing:border-box;margin:0;padding:0}html,body{max-width:100vw;overflow-x:hidden}body{min-height:100vh;color:var(--foreground);background:var(--background);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif}a{color:inherit}.home{text-align:center;max-width:640px;margin:0 auto;padding:64px 16px}.home h1{margin-bottom:12px;font-size:2.9rem}.home p{margin-bottom:8px;font-size:1.6rem}.home .muted{color:var(--muted);font-size:1.45rem}.home .btn{font-size:1.35rem}.home .error{color:#c62828;font-size:1.45rem}.btn{color:#fff;cursor:pointer;background:#1565c0;border:0;border-radius:8px;min-height:44px;margin-top:16px;padding:12px 20px;font-size:1rem;font-weight:600;text-decoration:none;display:inline-block}.form{text-align:left;flex-direction:column;gap:8px;max-width:420px;margin:16px auto;display:flex}.form label{font-size:.95rem}.form input{border:1px solid var(--muted);min-height:44px;color:var(--foreground);background:0 0;border-radius:8px;padding:12px;font-size:1rem}.page{max-width:880px;margin:0 auto;padding:16px}.page h1{margin:16px 0 12px;font-size:1.6rem}.page h2{margin:20px 0 8px;font-size:1.15rem}.page .muted{color:var(--muted)}.page .error{color:#c62828;margin:8px 0}.nav{border-bottom:1px solid var(--muted);flex-wrap:wrap;align-items:center;gap:16px;padding:8px 0 12px;display:flex}.nav a{font-weight:600;text-decoration:none}.nav-spacer{flex:1}.nav .btn{margin-top:0}.cards{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:12px;margin:12px 0;display:grid}.card{border:1px solid var(--muted);border-radius:10px;flex-direction:column;gap:6px;padding:14px;display:flex}.card input{border:1px solid var(--muted);min-height:44px;color:var(--foreground);background:0 0;border-radius:8px;padding:10px;font-size:1rem}.link-card{text-decoration:none}.actions{gap:8px;margin-top:8px;display:flex}.actions .btn{margin-top:0;padding:8px 14px}.form.wide{max-width:none;margin:12px 0}.warnings{flex-direction:column;gap:8px;margin-bottom:16px;display:flex}.warning-bar{color:#664d03;text-align:left;background:#fff3cd;border-radius:8px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;padding:12px 16px;display:flex}.audio-player{border:1px solid var(--muted);z-index:5;background:var(--background);border-radius:10px;flex-direction:column;gap:10px;margin:12px 0 20px;padding:14px;display:flex;position:sticky;top:8px}.audio-controls{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.audio-time{font-variant-numeric:tabular-nums;font-weight:600}.audio-vol,.audio-rate{align-items:center;gap:6px;font-size:.9rem;display:flex}.audio-bar{cursor:pointer;border:1px solid var(--muted);border-radius:8px;height:40px;display:flex;position:relative;overflow:hidden}.audio-bar-strict{cursor:default;background:#e9edf3}.audio-seg{justify-content:center;align-items:center;min-width:2px;font-size:.8rem;font-weight:700;display:flex}.audio-progress{pointer-events:none;background:#1565c059;border-right:2px solid #1565c0;width:0;position:absolute;top:0;bottom:0;left:0}.audio-cut-handle{cursor:ew-resize;z-index:2;background:#d32f2f;width:6px;margin-left:-3px;position:absolute;top:0;bottom:0}.mode-pick{text-align:left;border:none;min-width:220px;font-family:inherit}.timer-bar{z-index:5;color:#fff;font-variant-numeric:tabular-nums;background:#1565c0;border-radius:8px;margin-bottom:12px;padding:8px 14px;font-weight:700;display:inline-block;position:sticky;top:8px}.timer-bar.timer-low{background:#c62828}.teil-pick{cursor:pointer;flex-direction:row;align-items:center;gap:10px}.teil-pick input{width:20px;height:20px}.teil-block{border-top:1px solid var(--muted);margin:24px 0;padding-top:16px}.reading-passage{border:1px solid var(--muted);border-radius:10px;margin:12px 0;padding:14px;line-height:1.6}.reading-passage p{margin:0 0 10px}.reading-passage p:last-child{margin-bottom:0}.text-blocks{flex-direction:column;gap:12px;margin:12px 0;display:flex}.text-block{border:1px solid var(--muted);border-radius:10px;padding:12px 14px}.text-block p{white-space:pre-line;margin:6px 0 0}.anzeige-image{border-radius:8px;max-width:100%;max-height:220px;margin-top:8px;display:block}.choice-list{flex-direction:column;gap:6px;margin-top:4px;display:flex}.choice{cursor:pointer;align-items:center;gap:8px;display:flex}.choice input{width:18px;height:18px}.example-item{background:#eef6ff}.result-item.result-correct{border-color:#2e7d32}.result-item.result-wrong{border-color:#c62828}.result-item.result-blank{border-color:var(--muted)}.notice{border-width:2px;border-color:#1565c0;margin:12px 0}.comment-thread{border-top:1px solid var(--muted);margin-top:10px;padding-top:10px}.comment{border-bottom:1px dashed var(--muted);flex-direction:column;gap:2px;padding:8px 0;font-size:.9rem;display:flex}.comment-teacher{background:#1565c00f;border-radius:6px;padding:8px}.notice-text{border:1px solid var(--muted);border-radius:8px;margin:8px 0;padding:10px 12px}.secret{border:1px dashed var(--muted);letter-spacing:.05em;word-break:break-all;-webkit-user-select:all;user-select:all;border-radius:8px;padding:12px;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:1.3rem;display:block}select{border:1px solid var(--muted);min-height:44px;color:var(--foreground);background:0 0;border-radius:8px;padding:12px;font-size:1rem}.btn.danger-solid{background:#c62828}.btn.danger{color:#c62828;border-color:#c62828}.btn:disabled{opacity:.6;cursor:default}.btn.secondary{color:var(--foreground);border:1px solid var(--muted);background:0 0}