.nx5p{--ink:#092f22;--orange:#f3650b;--line:#dfd5c6;--cream:#fbf7f0;color:var(--ink);font:inherit;background:var(--cream);padding:32px clamp(18px,4vw,60px);border-radius:22px;margin:18px auto;max-width:1280px}.nx5p *{box-sizing:border-box}.nx5p-head{padding:15px 0 26px}.nx5p-home{font-weight:700;text-decoration:none;color:var(--ink)}.nx5p-pill{display:inline-block;margin-left:16px;background:#e0efe5;color:#146b46;border-radius:30px;padding:5px 12px;font-size:11px;font-weight:800;letter-spacing:1px}.nx5p h1{font-size:clamp(29px,4vw,52px);letter-spacing:-1.6px;line-height:1.1;margin:18px 0 12px;color:var(--ink)}.nx5p-head p{color:#746c63}.nx5p-shell{display:grid;grid-template-columns:minmax(240px,335px) minmax(0,1fr);gap:22px;align-items:start}.nx5p-side,.nx5p-main{border:1px solid var(--line);background:white;border-radius:20px;padding:22px;min-width:0}.nx5p-side{position:sticky;top:30px}.nx5p h2{font-size:22px;color:var(--ink);margin:0 0 16px}.nx5p-volume{display:flex;gap:8px;margin-bottom:18px}.nx5p-volume button{flex:1;background:#f6f2ea;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:11px;cursor:pointer;font-weight:800}.nx5p-volume button.active{background:var(--ink);color:white}.nx5p-label{display:block;font-size:12px;font-weight:800;margin:0 0 6px}.nx5p input[type=search]{width:100%;border:1px solid var(--line);border-radius:10px;padding:13px;font:inherit;outline-offset:2px}.nx5p-list{max-height:560px;overflow-y:auto;margin-top:12px;display:flex;flex-direction:column;gap:6px}.nx5p-topic{width:100%;text-align:left;border:0;border-radius:11px;background:#f9f7f2;color:var(--ink);padding:11px 12px;cursor:pointer;font:inherit}.nx5p-topic.active{background:#e1f0e7;box-shadow:inset 3px 0 var(--ink)}.nx5p-topic strong{display:block;font-size:14px;line-height:1.35}.nx5p-topic small{font-size:11px;color:#736b61}.nx5p-topic .nx5p-ready{color:#18824c;font-weight:bold}.nx5p-main{min-height:470px;padding:clamp(20px,3vw,42px)}.nx5p-tag{font-size:11px;letter-spacing:1px;color:var(--orange);font-weight:900;text-transform:uppercase}.nx5p-main h2{font-size:clamp(25px,3vw,35px);line-height:1.15;margin:10px 0 12px}.nx5p-main h3{font-size:20px;margin:24px 0 10px}.nx5p-main p{font-size:16px;line-height:1.8;color:#3b4c43}.nx5p-lesson{padding:20px 22px;border-radius:15px;background:#f5f4ee;border-left:4px solid #177850}.nx5p-quiz{border:1px solid #dfd5c6;border-radius:15px;padding:20px;margin-top:24px}.nx5p-answer{display:block;width:100%;text-align:left;background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px;margin:8px 0;cursor:pointer;font:inherit;color:var(--ink)}.nx5p-answer:hover{border-color:var(--orange)}.nx5p-answer:disabled{cursor:default;opacity:.8}.nx5p-feedback{font-weight:700;padding:13px;border-radius:12px;background:#e9f3ea;color:var(--ink);margin-top:12px}.nx5p-note{font-size:12px!important;line-height:1.6;color:#6c655c;margin-top:28px}.nx5p-empty{color:#7a7065}.nx5p-cta{border:0;border-radius:11px;color:white;background:var(--orange);padding:12px 16px;cursor:pointer;font-weight:800}.nx5p-source{margin-top:18px;color:#8a7e71;font-size:13px}@media(max-width:800px){.nx5p-shell{grid-template-columns:1fr}.nx5p-side{position:static}.nx5p-list{max-height:270px}.nx5p{padding:16px}.nx5p-main,.nx5p-side{padding:16px}}

.nx5p select{width:100%;padding:12px;border:1px solid var(--line);border-radius:10px;margin-bottom:16px;background:#fff;color:var(--ink)}.nx5p-activity{padding:16px 20px;margin:20px 0;background:#fff8e9;border-radius:14px;border:1px solid #f4dcaa}.nx5p-section{font-size:11px;color:#96785b;font-weight:800;margin-bottom:6px}.nx5p-feedback.good{background:#e7f6e8}.nx5p-feedback.bad{background:#fff1e4}.nx5p-quiz button:disabled{opacity:1}.nx5p-topic small{display:block;margin-top:5px}

.nx5p-draft{font-size:.82rem;color:#8a612b;background:#fff2df;border:1px solid #f2ddbf;padding:10px 13px;border-radius:12px}.nx5p-objectives{border-radius:16px;padding:18px 20px;background:#edf4ee;margin:18px 0}.nx5p-objectives h3{margin:0 0 12px;color:#0b3323}.nx5p-objectives li{margin:7px 0}.nx5p-keywords{margin:18px 0;color:#17412c;background:#f3f7f3;border-radius:12px;padding:12px 16px}.nx5p-remember{background:#fff1df;border-left:4px solid #f3650b;padding:14px 18px;border-radius:8px}.nx5p-lesson p{line-height:1.8;margin:12px 0;white-space:pre-wrap}.nx5p-answer:disabled{opacity:.7;cursor:default}

/* v1.2 unified learning page */
.nx5p-lesson-nav{display:flex;flex-wrap:wrap;gap:9px;margin:0 0 25px;padding-bottom:15px;border-bottom:1px solid #dfd5c6}
.nx5p-lesson-nav button{cursor:pointer;border-radius:999px;border:1px solid #d8d1c3;padding:10px 14px;background:#f4f6f1;color:#0b3021;font-weight:800;font:inherit;font-size:13px}
.nx5p-lesson-nav button:hover,.nx5p-lesson-nav button:focus-visible{background:#0b3021;color:white}
.nx5p-guide{padding:21px;margin:23px 0;background:#f0f7f0;border:1px solid #cbded1;border-radius:17px}
.nx5p-guide h3{margin:0 0 10px}.nx5p-guide p{margin:9px 0;font-size:15px;line-height:1.65}.nx5p-guide-prompt{font-weight:700}
.nx5p-reflection{display:block;width:100%;min-height:90px;border:1px solid #bed2c2;border-radius:12px;background:white;color:#0b3021;padding:12px;font:inherit;resize:vertical;margin:12px 0}
.nx5p-guide-button{background:#0b3021;color:white;border:0;border-radius:11px;padding:11px 16px;cursor:pointer;font:inherit;font-weight:750}
.nx5p-guide-help{background:#fff;padding:15px;border-radius:12px;margin-top:12px}.nx5p-guide-help[hidden]{display:none}
.nx5p-guide .nx5p-ai-note{font-size:12px;color:#6c6b5e;border-top:1px solid #d6e4d8;padding-top:13px;margin-top:18px}
#nxn5-lesson,#nxn5-guide,#nxn5-quiz{scroll-margin-top:25px}