.lesson-selector{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:0 0 16px}
.lesson-button{border:1px solid #393e50;border-radius:10px;background:#202432;color:#c7cddd;padding:16px 18px;text-align:left;transition:.18s}
.lesson-button:hover{border-color:#67708c;transform:translateY(-1px)}
.lesson-button.active{background:#eef0ff;border-color:#8b92ef;color:#171a26}
.lesson-button span{display:block;color:#8e97af;font-size:11px;font-weight:800;letter-spacing:.12em;margin-bottom:4px}
.lesson-button.active span{color:#2920bd}
.lesson-note{max-width:920px;margin:-20px 0 28px;padding:12px 15px;border-left:3px solid #f0b342;background:#292d3c;color:#e8d8ad;font-size:13px}
.lesson-note:empty{display:none}
.guide-overview{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px;margin:0 0 30px}.guide-overview article{padding:22px;border:1px solid #3b4154;border-radius:12px;background:#252a39}.guide-overview article.goal{border-color:#2b6957;background:#18372f}.guide-overview span{display:inline-block;margin-bottom:10px;color:#aeb7cc;font-size:12px;font-weight:900;letter-spacing:.04em}.guide-overview h3{margin:0;color:#fff;font-size:17px;line-height:1.55}.guide-overview ul{list-style:none;margin:0;padding:0}.guide-overview li{position:relative;padding:6px 0 6px 25px;border-bottom:1px solid #3a4051;color:#edf0f7;font-size:14px}.guide-overview li:last-child{border-bottom:0}.guide-overview li:before{content:'✓';position:absolute;left:2px;color:#7fe2b9;font-weight:900}
.flow-tab:disabled{cursor:default}
@media(max-width:1100px){.lesson-selector{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.lesson-selector{grid-template-columns:1fr}.lesson-button{padding:13px 15px}}

/* Task-based learning prototype */
.task-entrances{padding-top:84px;padding-bottom:72px}.entrance-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.entrance-card{position:relative;min-height:280px;padding:26px;border:1px solid var(--line);border-radius:16px;background:#fff;color:var(--ink);text-align:left;box-shadow:0 8px 30px rgba(20,27,52,.06);transition:.2s}.entrance-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.entrance-card.featured{background:#121625;color:#fff}.entrance-no{position:absolute;right:24px;top:22px;color:#9aa2b6;font-size:13px;font-weight:800}.entrance-card small{display:block;color:#355bd8;font-weight:800;margin-bottom:32px}.entrance-card.featured small{color:#aab8ff}.entrance-card strong{display:block;font-size:22px;line-height:1.4}.entrance-card p{color:var(--muted);margin:14px 0 28px}.entrance-card.featured p{color:#bdc4d5}.entrance-card b{color:#1510a8}.entrance-card.featured b{color:#fff}
.task-prototype{max-width:none;padding-left:max(30px,calc((100vw - 1240px)/2 + 30px));padding-right:max(30px,calc((100vw - 1240px)/2 + 30px));background:#fff}.task-kicker{color:var(--blue);font-size:12px;font-weight:900;letter-spacing:.16em}.task-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin:8px 0 34px}.task-title-row h2{font-size:clamp(32px,4.4vw,56px);line-height:1.15;letter-spacing:-.045em;margin:0}.task-title-row p{margin:14px 0 0;color:var(--muted);font-size:17px}.task-goal{flex:none;min-width:280px;padding:18px 20px;border-left:4px solid var(--green);background:#edf8f4}.task-goal small,.task-goal strong{display:block}.task-goal small{color:#557267;font-weight:800}.task-goal strong{font-size:17px;margin-top:3px}.task-prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-bottom:48px}.task-panel{padding:24px;border:1px solid var(--line);border-radius:12px;background:#f9fafc}.task-panel h3{font-size:18px;line-height:1.5;margin:12px 0}.task-panel p{color:var(--muted);margin:0}.panel-label{display:inline-block;border-radius:99px;padding:5px 10px;background:#e9edff;color:#1d3bb7;font-size:11px;font-weight:900}.check-list{list-style:none;margin:13px 0 0;padding:0}.check-list li{position:relative;padding:7px 0 7px 28px;border-bottom:1px solid #e4e7ed}.check-list li:before{content:'✓';position:absolute;left:2px;color:var(--green);font-weight:900}.example-panel blockquote{margin:14px 0;padding:14px 16px;border-left:4px solid var(--blue);background:#fff;font-weight:700}.journey-heading{display:grid;grid-template-columns:1fr 1fr 1fr;margin-bottom:10px;border-radius:9px;overflow:hidden}.journey-heading span{padding:9px 14px;text-align:center;background:#eef0f5;color:#5d6576;font-size:12px;font-weight:900}.journey-heading span:nth-child(2){background:#f3ecff;color:#7445a0}.journey-heading span:nth-child(3){background:#e9f7f1;color:#237258}.journey-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.journey-step{display:flex;flex-direction:column;padding:22px;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 9px 30px rgba(20,27,52,.07)}.journey-step.sender{border-top:5px solid #2d4ed0}.journey-step.receiver{border-top:5px solid #8a50ad}.journey-step.system{border-top:5px solid var(--green)}.journey-step-head{display:flex;gap:12px;align-items:center;margin-bottom:16px}.journey-step-head>b{display:grid;place-items:center;width:38px;height:38px;border-radius:50%;background:#171a26;color:#fff}.journey-step-head small{font-weight:900;color:var(--muted)}.journey-step h3{font-size:21px;margin:0}.journey-step img{width:100%;aspect-ratio:16/6.2;object-fit:cover;object-position:center;border:1px solid var(--line);border-radius:9px;background:#f1f3f7}.journey-step ol{margin:18px 0;padding-left:24px}.journey-step li{padding:5px 0}.preflight{display:flex;flex-wrap:wrap;gap:7px;margin:17px 0}.preflight strong{flex-basis:100%}.preflight span{padding:5px 9px;border-radius:99px;background:#eef0f5;font-size:12px;font-weight:700}.result-note{margin:0 0 18px;padding:12px 14px;border-left:4px solid #d98c1f;background:#fff8e9;color:#70501e}.result-note.good{border-color:var(--green);background:#edf8f4;color:#245c49}.task-detail-button{margin-top:auto;border:0;border-radius:8px;padding:12px 15px;background:#f0f2fb;color:var(--navy);font-weight:800;text-align:left}.capture-pending{display:grid;place-items:center;min-height:250px;padding:30px;border:2px dashed #cbb8dc;border-radius:10px;background:#faf6ff;text-align:center}.capture-pending span{font-size:11px;font-weight:900;color:#7a4e9b}.capture-pending strong{font-size:24px}.capture-pending p{max-width:390px;color:var(--muted)}.task-cautions{display:grid;grid-template-columns:1.1fr repeat(3,1fr);gap:14px;margin-top:22px;padding:24px;border-radius:14px;background:#171a26;color:#fff}.task-cautions h3{font-size:22px;margin:0}.task-cautions strong{color:#ffca79}.task-cautions p{margin:7px 0 0;color:#c9cfdd;font-size:13px}
@media(max-width:900px){.entrance-grid,.task-prep-grid,.journey-grid,.guide-overview{grid-template-columns:1fr}.task-title-row{display:block}.task-goal{margin-top:22px}.journey-heading{display:none}.task-cautions{grid-template-columns:1fr}.entrance-card{min-height:auto}.journey-step img{aspect-ratio:auto}}
.verified-badge{display:none}.filters{grid-template-columns:minmax(260px,1fr) 300px}.feature-group summary{grid-template-columns:1fr 70px}.feature-row{grid-template-columns:minmax(260px,1fr) minmax(220px,.8fr) 116px}.feature-link-label{justify-self:end}.feature-row .feature-purpose{grid-column:auto}.feature-row .feature-link-label{grid-column:auto}@media(max-width:900px){.feature-row{grid-template-columns:1fr}.feature-row .feature-purpose,.feature-row .feature-link-label{grid-column:1}.feature-row .feature-link-label{justify-self:start}}
.related-guides{margin-top:28px;padding:28px;border:1px solid var(--line);border-radius:14px;background:#f7f8fc}.related-guides-heading{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:18px}.related-guides-heading h3{margin:8px 0 0;font-size:25px}.related-guides-heading p{max-width:570px;margin:0;color:var(--muted)}.related-guide-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.related-guide-button{display:flex;min-height:124px;flex-direction:column;justify-content:space-between;gap:18px;padding:18px;border:1px solid #d9deea;border-radius:10px;background:#fff;color:var(--ink);text-align:left;transition:.18s}.related-guide-button:hover{border-color:#7785d9;box-shadow:0 8px 24px rgba(20,27,52,.08);transform:translateY(-2px)}.related-guide-button strong{font-size:17px}.related-guide-button span{color:var(--navy);font-size:13px;font-weight:800}.lesson-selector.is-hidden{display:none}.verified.related-view .section-heading{margin-bottom:26px}@media(max-width:900px){.related-guides-heading{display:block}.related-guides-heading p{margin-top:10px}.related-guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:520px){.related-guides{padding:20px}.related-guide-grid{grid-template-columns:1fr}.related-guide-button{min-height:auto}.related-guides-heading h3{font-size:22px}}

/* Final responsive and public-facing cleanup. */
.topbar{min-width:0}.brand{min-width:0}.top-actions{flex:none}.top-actions button{white-space:nowrap}
.filters>*{min-width:0}.feature-group,.feature-table,.feature-row{min-width:0;max-width:100%}
.feature-row{grid-template-columns:minmax(0,1fr) auto 116px}
.feature-title{grid-column:1;grid-row:1}.status{grid-column:2;grid-row:1}.feature-link-label{grid-column:3;grid-row:1}.feature-purpose{grid-column:1/4;grid-row:2;min-width:0;overflow-wrap:anywhere}
@media(max-width:900px){
  .filters{grid-template-columns:1fr}
  .feature-row{grid-template-columns:minmax(0,1fr) auto}
  .feature-title{grid-column:1}.status{grid-column:2}.feature-purpose,.feature-link-label{grid-column:1/3}
}
@media(max-width:620px){
  .topbar{height:auto;min-height:104px;padding:10px 16px;align-content:center;flex-wrap:wrap;gap:8px}
  .brand-mark{width:34px;height:34px}.brand strong{font-size:14px}.brand small{font-size:10px}
  .top-actions{display:grid;width:100%;grid-template-columns:1fr 1fr;gap:8px}
  .top-actions .ghost{display:block}.top-actions button{width:100%;padding:8px 10px;font-size:13px}
  .hero-line{white-space:normal}.hero h1{font-size:clamp(34px,10.5vw,42px)}
  .hero-actions{align-items:flex-start;flex-direction:column}
  .section{scroll-margin-top:112px}
  .path-panel{padding:0 8px 20px 42px}.path-guide{grid-template-columns:1fr;gap:10px;padding:16px}.path-guide b{white-space:normal}
  .feature-group summary{grid-template-columns:minmax(0,1fr) auto;padding:16px}
  .feature-row{grid-template-columns:1fr;padding:16px;gap:8px}
  .feature-title,.status,.feature-purpose,.feature-link-label{grid-column:1;justify-self:start}
  .feature-title{grid-row:auto}.status{grid-row:auto}.feature-purpose{grid-row:auto}.feature-link-label{grid-row:auto}
  .screen-nav{flex-wrap:wrap}.screen-nav span{order:-1;flex-basis:100%;text-align:center;margin-right:0}
}

/* Frequently asked questions link concise answers to the verified guides. */
.quick-answers{max-width:none;padding-left:max(30px,calc((100vw - 1240px)/2 + 30px));padding-right:max(30px,calc((100vw - 1240px)/2 + 30px));background:#eef1f8}
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.faq-item{min-width:0;border:1px solid #d9deea;border-radius:12px;background:#fff;overflow:hidden}
.faq-item summary{position:relative;display:flex;min-height:118px;flex-direction:column;justify-content:center;gap:10px;padding:22px 58px 22px 22px;list-style:none;cursor:pointer}
.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:'＋';position:absolute;right:22px;top:50%;transform:translateY(-50%);display:grid;place-items:center;width:30px;height:30px;border:1px solid #cfd5e2;border-radius:50%;color:var(--navy);font-weight:800}.faq-item[open] summary:after{content:'−'}
.faq-item summary strong{font-size:18px;line-height:1.55}.faq-category{align-self:flex-start;border-radius:999px;padding:4px 9px;background:#e9edff;color:#2846b8;font-size:12px;font-weight:800}
.faq-answer{padding:0 22px 22px;border-top:1px solid #edf0f4}.faq-answer>p{margin:0 -22px 18px;padding:18px 22px;background:#f7f8fc;color:#303747}.faq-answer b{color:var(--ink)}.faq-answer ul{margin:8px 0 20px;padding-left:22px}.faq-answer li{padding:3px 0}.faq-answer button{width:100%;border:0;border-radius:8px;padding:13px 16px;background:var(--navy);color:#fff;font-weight:800;text-align:left}
.faq-item-flow{grid-column:span 1}.faq-guide-links{display:grid;gap:8px;margin:10px 0 18px}.faq-guide-links button{display:grid;grid-template-columns:30px minmax(0,1fr) auto;align-items:center;gap:10px;padding:10px 14px;background:#f2f4fb;color:var(--ink);border:1px solid #d7ddea}.faq-guide-links button span{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--navy);color:#fff;font-size:13px}.faq-guide-links button strong{font-size:14px;line-height:1.45}.faq-guide-links button em{color:var(--navy);font-size:12px;font-style:normal;white-space:nowrap}.faq-guide-links button:hover{border-color:var(--navy);background:#e9edff}.faq-checks{padding-top:2px}
@media(max-width:1100px){.entrance-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.entrance-card{min-height:240px}}
@media(max-width:760px){.entrance-grid,.faq-grid{grid-template-columns:1fr}.quick-answers{padding-left:20px;padding-right:20px}.faq-item summary{min-height:auto;padding:18px 54px 18px 18px}.faq-answer{padding:0 18px 18px}.faq-answer>p{margin:0 -18px 16px;padding:16px 18px}.faq-guide-links button{grid-template-columns:30px minmax(0,1fr)}.faq-guide-links button em{grid-column:2}}