.lp-root{--lp-max:1120px;--lp-gutter:clamp(20px, 4vw, 48px);background:radial-gradient(ellipse 120% 60% at 50% -10%, #ddd6fe59, transparent 55%), radial-gradient(ellipse 80% 40% at 100% 30%, #fef08a2e, transparent 50%), var(--bg-app);height:100dvh;color:var(--ink-primary);font-family:var(--font-body);scroll-behavior:smooth;overflow:hidden auto}.lp-root *{box-sizing:border-box}.lp-grain{pointer-events:none;z-index:50;opacity:.035;mix-blend-mode:multiply;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");position:fixed;inset:0}.lp-nav{z-index:40;padding:14px var(--lp-gutter);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#f9f7f1db;border-bottom:1.5px solid #2d374814;justify-content:space-between;align-items:center;gap:16px;display:flex;position:sticky;top:0}.lp-brand{color:var(--ink-primary);letter-spacing:-.01em;align-items:center;gap:10px;font-size:15px;font-weight:800;text-decoration:none;display:inline-flex}.lp-brand-mark{border:1.5px solid var(--ink-primary);background:var(--bg-surface);border-radius:10px 12px 9px 11px;place-items:center;width:32px;height:32px;display:grid;transform:rotate(-3deg);box-shadow:2px 2px #2d37481f}.lp-brand-logo{object-fit:cover;border-radius:8px 9px 7px 8px;width:28px;height:28px;display:block}.lp-nav-links{align-items:center;gap:8px;display:flex}.lp-nav-links a:not(.lp-btn){color:var(--ink-secondary);border-radius:var(--radius-sm);padding:8px 12px;font-size:13.5px;font-weight:600;text-decoration:none;transition:background .15s,color .15s}.lp-nav-links a:not(.lp-btn):hover{background:var(--bg-subtle);color:var(--ink-primary)}@media (max-width:720px){.lp-nav-hide-sm{display:none}}.lp-btn{border:1.5px solid var(--ink-primary);background:var(--bg-surface);min-height:44px;color:var(--ink-primary);font-family:var(--font-body);cursor:pointer;border-radius:12px 14px 11px 13px;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:14.5px;font-weight:700;text-decoration:none;transition:transform .12s,box-shadow .12s,background .15s;display:inline-flex;box-shadow:2px 3px #2d37482e}.lp-btn:hover{transform:translate(-1px,-1px);box-shadow:3px 4px #2d374833}.lp-btn:active{transform:translate(1px,1px);box-shadow:1px 1px #2d374829}.lp-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.lp-btn-primary{background:var(--ink-primary);color:#faf8f3;border-color:var(--ink-primary)}.lp-btn-primary:hover{background:#1a202c}.lp-btn-ghost{box-shadow:none;background:0 0;border-style:dashed}.lp-btn-ghost:hover{background:#ffffffb3;box-shadow:2px 2px #2d374814}.lp-btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:1px 2px #2d37481a}.lp-section{padding:clamp(64px, 10vw, 120px) var(--lp-gutter);position:relative}.lp-section-inner{max-width:var(--lp-max);margin:0 auto}.lp-eyebrow{font-family:var(--font-hand);color:var(--ink-muted);align-items:center;gap:8px;margin-bottom:12px;font-size:15px;display:inline-flex}.lp-eyebrow:before{content:"";background:var(--ink-muted);opacity:.5;border-radius:2px;width:18px;height:2px}.lp-section-title{letter-spacing:-.02em;max-width:18ch;margin-bottom:14px;font-size:clamp(28px,4.5vw,42px);font-weight:800;line-height:1.15}.lp-section-lead{color:var(--ink-secondary);max-width:48ch;font-size:clamp(15px,1.6vw,17px);line-height:1.7}.lp-rule{top:0;bottom:0;left:max(var(--lp-gutter), calc((100% - var(--lp-max)) / 2 - 28px));pointer-events:none;background:linear-gradient(#0000,#e11d482e 8% 92%,#0000);width:1.5px;position:absolute}@media (max-width:900px){.lp-rule{display:none}}.lp-reveal{opacity:0;transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1);transform:translateY(18px)}.lp-reveal.is-in{opacity:1;transform:none}.lp-reveal-delay-1{transition-delay:80ms}.lp-reveal-delay-2{transition-delay:.16s}.lp-reveal-delay-3{transition-delay:.24s}.lp-reveal-delay-4{transition-delay:.32s}@media (scripting:none){.lp-reveal{opacity:1;transition:none;transform:none}}.lp-hero{padding-top:clamp(40px,7vw,72px);padding-bottom:clamp(56px,9vw,100px)}.lp-hero-grid{grid-template-columns:1.05fr .95fr;align-items:center;gap:clamp(32px,5vw,64px);display:grid}@media (max-width:920px){.lp-hero-grid{grid-template-columns:1fr}}.lp-hero-copy h1{letter-spacing:-.035em;margin-bottom:20px;font-size:clamp(40px,7vw,68px);font-weight:800;line-height:1.02}.lp-hero-copy h1 span{display:block}.lp-hero-line-2{color:var(--ink-primary)}.lp-hero-line-3{width:fit-content;display:inline-block;position:relative}.lp-hero-underline{z-index:-1;height:.28em;position:absolute;bottom:.08em;left:-4%;right:-6%;overflow:visible}.lp-hero-underline path{fill:none;stroke:var(--washi-tape-yellow);stroke-width:14px;stroke-linecap:round;opacity:.95;stroke-dasharray:400;stroke-dashoffset:400px;animation:.9s cubic-bezier(.16,1,.3,1) .45s forwards lp-draw-underline}@keyframes lp-draw-underline{to{stroke-dashoffset:0}}.lp-hero-sub{color:var(--ink-secondary);max-width:38ch;margin-bottom:28px;font-size:clamp(16px,1.8vw,18.5px);line-height:1.7}.lp-hero-actions{flex-wrap:wrap;gap:12px;margin-bottom:28px;display:flex}.lp-hero-meta{font-family:var(--font-hand);color:var(--ink-muted);flex-wrap:wrap;gap:10px 18px;font-size:15px;display:flex}.lp-hero-meta span{align-items:center;gap:6px;display:inline-flex}.lp-hero-stage{min-height:420px;position:relative}.lp-sheet{background:var(--bg-surface);border:1.5px solid var(--ink-primary);box-shadow:var(--shadow-card);border-radius:14px 16px 12px 15px;position:relative}.lp-sheet-syllabus{z-index:2;padding:22px 22px 18px;transform:rotate(-1.2deg)}.lp-washi{background:linear-gradient(135deg,#fef08ad9,#fde68ab3);border:1px solid #854d0e26;width:88px;height:22px;position:absolute;top:-10px;left:28px;transform:rotate(-4deg);box-shadow:0 1px #2d37480f}.lp-washi-2{background:linear-gradient(135deg,#bfdbfed9,#93c5fda6);inset:auto 36px -8px auto;transform:rotate(3deg)}.lp-syllabus-label{font-family:var(--font-hand);color:var(--ink-muted);margin-bottom:4px;font-size:13px}.lp-syllabus-title{margin-bottom:12px;font-size:18px;font-weight:800}.lp-syllabus-list{gap:8px;list-style:none;display:grid}.lp-syllabus-list li{color:var(--ink-secondary);background:#f9f7f1a6;border:1px dashed #2d37482e;border-radius:10px;align-items:flex-start;gap:10px;padding:8px 10px;font-size:13.5px;display:flex}.lp-check-dot{border:1.5px solid var(--ink-primary);background:var(--pastel-green-bg);border-radius:50%;flex-shrink:0;place-items:center;width:16px;height:16px;margin-top:1px;display:grid}.lp-check-dot.pending{background:0 0;border-style:dashed}.lp-check-dot.current{background:var(--pastel-yellow-bg);box-shadow:0 0 0 3px #fef08a73}.lp-path-card{z-index:3;background:var(--accent-soft);border:1.5px solid var(--accent-border);width:min(280px,78%);padding:16px;animation:5.5s ease-in-out infinite lp-float;position:absolute;bottom:18px;right:0;transform:rotate(2deg);box-shadow:3px 4px #2d37481a}.lp-path-card h3{color:var(--accent-ink);align-items:center;gap:6px;margin-bottom:8px;font-size:13px;font-weight:800;display:flex}.lp-path-nodes{flex-wrap:wrap;gap:6px;display:flex}.lp-path-nodes span{border:1px solid var(--accent-border);color:var(--ink-primary);background:#fff;border-radius:999px;padding:4px 8px;font-size:11.5px;font-weight:700}.lp-path-nodes span.done{background:var(--pastel-green-bg);border-color:var(--pastel-green-border);color:var(--pastel-green-ink)}.lp-teacher-card{z-index:4;background:var(--pastel-blue-bg);border:1.5px solid var(--pastel-blue-border);border-radius:14px 12px 14px 10px;width:min(260px,72%);padding:14px 16px;position:absolute;bottom:-8px;left:8%;transform:rotate(-1.5deg);box-shadow:2px 3px #2d374814}.lp-teacher-card p{color:var(--ink-primary);min-height:2.8em;font-size:13.5px;line-height:1.5}.lp-teacher-card .lp-cursor{background:var(--ink-primary);vertical-align:-2px;width:2px;height:1em;margin-left:2px;animation:.9s step-end infinite lp-blink;display:inline-block}@keyframes lp-blink{50%{opacity:0}}@keyframes lp-float{0%,to{transform:rotate(2deg)translateY(0)}50%{transform:rotate(2deg)translateY(-8px)}}.lp-sticky-float{background:var(--pastel-yellow-bg);border:1px solid var(--pastel-yellow-border);width:118px;box-shadow:var(--shadow-sticky);font-family:var(--font-hand);color:var(--pastel-yellow-ink);z-index:5;padding:12px 10px;font-size:14px;line-height:1.35;position:absolute;top:12%;right:-4%;transform:rotate(6deg)}@media (max-width:920px){.lp-hero-stage{min-height:380px;margin-top:12px}.lp-sticky-float{top:0;right:4%}.lp-teacher-card{left:0}}.lp-problem{padding-top:24px}.lp-scraps{grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px;display:grid}@media (max-width:800px){.lp-scraps{grid-template-columns:1fr}}.lp-scrap{background:var(--bg-surface);border:1.5px solid #2d37488c;border-radius:4px 18px 6px 14px;padding:22px 20px 20px;transition:transform .2s,box-shadow .2s;position:relative;box-shadow:2px 3px #2d37481a}.lp-scrap:first-child{transform:rotate(-1.4deg)}.lp-scrap:nth-child(2){transform:rotate(.8deg)}.lp-scrap:nth-child(3){transform:rotate(-.5deg)}.lp-scrap:hover{transform:rotate(0)translateY(-3px);box-shadow:3px 5px #2d374824}.lp-scrap-kicker{font-family:var(--font-hand);color:var(--pastel-coral-ink);margin-bottom:8px;font-size:14px}.lp-scrap h3{letter-spacing:-.015em;margin-bottom:8px;font-size:18px;font-weight:800}.lp-scrap p{color:var(--ink-secondary);font-size:14px;line-height:1.6}.lp-scrap-mark{border:1.5px solid var(--pastel-coral-border);background:var(--pastel-coral-bg);width:28px;height:28px;color:var(--pastel-coral-ink);border-radius:50%;place-items:center;display:grid;position:absolute;top:14px;right:14px}.lp-problem-punch{border-left:3px solid var(--pastel-yellow-border);background:linear-gradient(90deg,#fefce8e6,#0000);max-width:52ch;margin-top:36px;padding:18px 20px;font-size:17px;font-weight:700;line-height:1.55}.lp-loop-layout{grid-template-columns:280px 1fr;align-items:start;gap:28px;margin-top:36px;display:grid}@media (max-width:880px){.lp-loop-layout{grid-template-columns:1fr}}.lp-phase-list{gap:8px;display:grid;position:sticky;top:72px}@media (max-width:880px){.lp-phase-list{grid-auto-columns:minmax(140px,1fr);grid-auto-flow:column;padding-bottom:6px;position:static;overflow-x:auto}}.lp-phase-btn{text-align:left;cursor:pointer;width:100%;font-family:var(--font-body);color:var(--ink-secondary);background:0 0;border:1.5px solid #0000;border-radius:12px 14px 11px 13px;align-items:center;gap:12px;padding:12px 14px;transition:background .15s,border-color .15s,color .15s,box-shadow .15s;display:flex}.lp-phase-btn:hover{color:var(--ink-primary);background:#ffffffb3}.lp-phase-btn.is-active{background:var(--bg-surface);border-color:var(--ink-primary);color:var(--ink-primary);font-weight:700;box-shadow:2px 3px #2d37481a}.lp-phase-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.lp-phase-num{width:28px;height:28px;font-size:12px;font-weight:800;font-family:var(--font-mono);border:1.5px solid;border-radius:50%;flex-shrink:0;place-items:center;display:grid}.lp-phase-btn.is-active .lp-phase-num{background:var(--accent-soft);border-color:var(--accent-border);color:var(--accent-ink)}.lp-phase-btn.is-done .lp-phase-num{background:var(--pastel-green-bg);border-color:var(--pastel-green-border);color:var(--pastel-green-ink)}.lp-phase-label{font-size:14px}.lp-phase-panel{background:var(--bg-surface);border:1.5px solid var(--ink-primary);box-shadow:var(--shadow-card);border-radius:16px 18px 14px 16px;min-height:360px;padding:28px;position:relative;overflow:hidden}.lp-phase-panel:before{content:"";background:repeating-linear-gradient(90deg,#0000,#0000 12px,#2d37480a 12px 13px);height:8px;position:absolute;top:0;left:0;right:0}.lp-phase-panel h3{letter-spacing:-.02em;margin-bottom:8px;font-size:22px;font-weight:800}.lp-phase-panel>p{color:var(--ink-secondary);max-width:52ch;margin-bottom:20px;font-size:15px;line-height:1.65}.lp-mock-chat{gap:12px;display:grid}.lp-mock-bubble{border:1.5px solid;border-radius:14px 14px 14px 6px;max-width:92%;padding:12px 14px;font-size:14px;line-height:1.55}.lp-mock-bubble.teacher{background:var(--pastel-blue-bg);border-color:var(--pastel-blue-border);color:var(--ink-primary)}.lp-mock-bubble.user{background:var(--bg-surface);border-color:#2d374859;border-radius:14px 14px 6px;justify-self:end;box-shadow:1px 2px #2d37480f}.lp-mock-choices{gap:8px;margin-top:4px;display:grid}.lp-mock-choice{text-align:left;color:var(--ink-secondary);cursor:default;background:#fff;border:1.5px dashed #2d374840;border-radius:10px;padding:10px 12px;font-size:13.5px;font-weight:600}.lp-mock-choice.selected{border-style:solid;border-color:var(--pastel-blue-border);background:var(--pastel-blue-bg);color:var(--pastel-blue-ink)}.lp-mock-quiz{border:1.5px solid var(--ink-primary);background:linear-gradient(#fff,#f9f7f180);border-radius:14px;padding:16px}.lp-mock-quiz .q{margin-bottom:12px;font-size:14.5px;font-weight:700}.lp-mock-quiz .opts{gap:8px;display:grid}.lp-mock-quiz .opt{background:#fff;border:1.5px solid #2d374826;border-radius:10px;align-items:center;gap:10px;padding:10px 12px;font-size:13.5px;display:flex}.lp-mock-quiz .opt.pass{border-color:var(--pastel-green-border);background:var(--pastel-green-bg);color:var(--pastel-green-ink);font-weight:700}.lp-phase-footer{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:20px;display:flex}.lp-phase-hint{font-family:var(--font-hand);color:var(--ink-muted);font-size:15px}.lp-dag-section{padding-top:clamp(48px,8vw,88px)}.lp-dag-frame{background:var(--bg-surface);border:1.5px solid var(--ink-primary);border-radius:18px 20px 16px 18px;margin-top:36px;overflow:hidden;box-shadow:4px 6px #2d37481a}.lp-dag-toolbar{background:var(--bg-sidebar);border-bottom:1.5px solid #2d37481a;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;display:flex}.lp-dag-toolbar-left{align-items:center;gap:10px;font-size:13.5px;font-weight:700;display:flex}.lp-dag-badge{border:1px solid;border-radius:999px;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:800;display:inline-flex}.lp-dag-badge.review{background:var(--accent-soft);border-color:var(--accent-border);color:var(--accent-ink)}.lp-dag-badge.teaching{background:var(--pastel-yellow-bg);border-color:var(--pastel-yellow-border);color:var(--pastel-yellow-ink)}.lp-dag-badge.done{background:var(--pastel-green-bg);border-color:var(--pastel-green-border);color:var(--pastel-green-ink)}.lp-dag-canvas{padding:20px 12px 28px;overflow-x:auto}.lp-dag-svg{width:100%;min-width:640px;height:auto;display:block}.lp-dag-edge{fill:none;stroke:#2d374859;stroke-width:1.75px;stroke-linecap:round;stroke-dasharray:8 6;opacity:0;animation:.5s forwards lp-edge-in}.lp-dag-edge.drawn{stroke-dasharray:none;opacity:1}.lp-dag-edge.is-live{stroke:var(--pastel-green-ink);stroke-width:2.25px;opacity:1;stroke-dasharray:none}@keyframes lp-edge-in{to{opacity:1}}.lp-dag-node rect,.lp-dag-node path.node-shape{transition:fill .35s,stroke .35s,filter .35s}.lp-dag-node text{font-family:var(--font-body);fill:var(--ink-primary);font-weight:700}.lp-dag-node .node-meta{font-family:var(--font-hand);fill:var(--ink-muted);font-size:11px;font-weight:400}.lp-dag-node.is-pending rect{fill:#fff;stroke:#2d37488c;stroke-dasharray:5 4}.lp-dag-node.is-verified rect{fill:var(--pastel-green-bg);stroke:var(--pastel-green-ink);stroke-width:1.75px}.lp-dag-node.is-current rect{fill:var(--pastel-yellow-bg);stroke:var(--pastel-yellow-ink);stroke-width:2px;filter:drop-shadow(0 0 #0000);animation:1.8s ease-in-out infinite lp-pulse-node}.lp-dag-node.is-goal rect{fill:var(--accent-soft);stroke:var(--accent-ink);stroke-width:2px}@keyframes lp-pulse-node{0%,to{opacity:1}50%{opacity:.78}}.lp-dag-status{font-family:var(--font-hand);color:var(--ink-secondary);flex-wrap:wrap;gap:10px;padding:0 18px 18px;font-size:15px;display:flex}.lp-dag-status strong{color:var(--ink-primary);font-family:var(--font-body);font-size:13px}.lp-teach-grid{grid-template-columns:1.1fr .9fr;align-items:start;gap:20px;margin-top:36px;display:grid}@media (max-width:880px){.lp-teach-grid{grid-template-columns:1fr}}.lp-lesson-card,.lp-quiz-card{background:var(--bg-surface);border:1.5px solid var(--ink-primary);box-shadow:var(--shadow-card);border-radius:16px;padding:24px}.lp-lesson-label{font-family:var(--font-hand);color:var(--ink-muted);margin-bottom:6px;font-size:14px}.lp-lesson-card h3{margin-bottom:12px;font-size:20px;font-weight:800}.lp-lesson-card p{color:var(--ink-secondary);margin-bottom:12px;font-size:15px;line-height:1.7}.lp-formula{font-family:var(--font-mono);background:var(--bg-sidebar);color:var(--ink-primary);border:1px solid #2d37481f;border-radius:10px;margin:14px 0 8px;padding:12px 14px;font-size:13.5px}.lp-quiz-card h3{margin-bottom:6px;font-size:18px;font-weight:800}.lp-quiz-card .q-text{margin:12px 0 16px;font-size:15px;font-weight:600;line-height:1.5}.lp-quiz-opts{gap:10px;display:grid}.lp-quiz-opt{text-align:left;cursor:pointer;width:100%;font-family:var(--font-body);color:var(--ink-primary);background:#fff;border:1.5px solid #2d374833;border-radius:12px;align-items:flex-start;gap:10px;min-height:44px;padding:12px 14px;font-size:14px;font-weight:600;transition:border-color .15s,background .15s,transform .1s;display:flex}.lp-quiz-opt:hover:not(:disabled){border-color:var(--ink-primary);background:#f9f7f1cc}.lp-quiz-opt:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.lp-quiz-opt.is-correct{border-color:var(--pastel-green-ink);background:var(--pastel-green-bg);color:var(--pastel-green-ink)}.lp-quiz-opt.is-wrong{border-color:var(--pastel-coral-ink);background:var(--pastel-coral-bg);color:var(--pastel-coral-ink)}.lp-quiz-opt:disabled{cursor:default}.lp-quiz-key{width:22px;height:22px;font-size:11px;font-weight:800;font-family:var(--font-mono);border:1.5px solid #2d374859;border-radius:6px;flex-shrink:0;place-items:center;margin-top:1px;display:grid}.lp-quiz-feedback{border:1.5px solid;border-radius:12px;margin-top:16px;padding:12px 14px;font-size:14px;line-height:1.5;animation:.35s cubic-bezier(.16,1,.3,1) lp-pop}.lp-quiz-feedback.ok{background:var(--pastel-green-bg);border-color:var(--pastel-green-border);color:var(--pastel-green-ink)}.lp-quiz-feedback.no{background:var(--pastel-coral-bg);border-color:var(--pastel-coral-border);color:var(--pastel-coral-ink)}@keyframes lp-pop{0%{opacity:0;transform:scale(.97)translateY(4px)}to{opacity:1;transform:none}}.lp-audience-grid{grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px;display:grid}@media (max-width:800px){.lp-audience-grid{grid-template-columns:1fr}}.lp-audience-card{background:var(--bg-surface);border:1.5px solid #2d374873;border-radius:14px;padding:22px;transition:transform .18s,box-shadow .18s;box-shadow:2px 3px #2d374814}.lp-audience-card:hover{transform:translateY(-3px);box-shadow:3px 5px #2d37481f}.lp-audience-tag{font-family:var(--font-mono);letter-spacing:.04em;text-transform:uppercase;border:1px solid;border-radius:6px;margin-bottom:12px;padding:4px 8px;font-size:11px;font-weight:700;display:inline-flex}.lp-audience-tag.cs{background:var(--pastel-blue-bg);border-color:var(--pastel-blue-border);color:var(--pastel-blue-ink)}.lp-audience-tag.math{background:var(--accent-soft);border-color:var(--accent-border);color:var(--accent-ink)}.lp-audience-tag.exam{background:var(--pastel-yellow-bg);border-color:var(--pastel-yellow-border);color:var(--pastel-yellow-ink)}.lp-audience-card h3{margin-bottom:8px;font-size:18px;font-weight:800}.lp-audience-card p{color:var(--ink-secondary);margin-bottom:14px;font-size:14px;line-height:1.6}.lp-audience-card ul{gap:6px;list-style:none;display:grid}.lp-audience-card li{color:var(--ink-muted);align-items:flex-start;gap:8px;font-size:13px;display:flex}.lp-audience-card li:before{content:"→";color:var(--ink-primary);font-weight:700}.lp-principles{grid-template-columns:repeat(4,1fr);gap:14px;margin-top:36px;display:grid}@media (max-width:900px){.lp-principles{grid-template-columns:repeat(2,1fr)}}@media (max-width:520px){.lp-principles{grid-template-columns:1fr}}.lp-principle{min-height:150px;box-shadow:var(--shadow-sticky);border:1px solid;border-radius:4px 12px 6px 10px;padding:18px 16px;transition:transform .18s}.lp-principle:hover{transform:rotate(0)scale(1.02)}.lp-principle:first-child{background:var(--pastel-yellow-bg);border-color:var(--pastel-yellow-border);color:var(--pastel-yellow-ink);transform:rotate(-1.5deg)}.lp-principle:nth-child(2){background:var(--pastel-green-bg);border-color:var(--pastel-green-border);color:var(--pastel-green-ink);transform:rotate(1deg)}.lp-principle:nth-child(3){background:var(--pastel-blue-bg);border-color:var(--pastel-blue-border);color:var(--pastel-blue-ink);transform:rotate(-.6deg)}.lp-principle:nth-child(4){background:var(--accent-soft);border-color:var(--accent-border);color:var(--accent-ink);transform:rotate(1.4deg)}.lp-principle h3{color:var(--ink-primary);margin-bottom:8px;font-size:15px;font-weight:800}.lp-principle h3 a{color:inherit;text-decoration:none}.lp-principle h3 a:hover{text-decoration:underline}.lp-principle p{font-family:var(--font-hand);color:inherit;font-size:15.5px;line-height:1.4}.lp-final{padding-bottom:100px}.lp-final-sheet{text-align:center;background:var(--bg-surface);border:1.5px solid var(--ink-primary);border-radius:18px 22px 16px 20px;max-width:720px;margin:0 auto;padding:clamp(36px,6vw,56px) clamp(24px,4vw,48px);position:relative;box-shadow:4px 6px #2d37481f}.lp-final-sheet:before{content:"";background:#bfdbfebf;border:1px solid #2563eb26;width:120px;height:26px;position:absolute;top:-12px;left:50%;transform:translate(-50%)rotate(-2deg)}.lp-final-sheet h2{letter-spacing:-.025em;margin-bottom:12px;font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1.15}.lp-final-sheet p{color:var(--ink-secondary);max-width:40ch;margin:0 auto 28px;font-size:16px;line-height:1.65}.lp-final-actions{flex-wrap:wrap;justify-content:center;gap:12px;display:flex}.lp-footer{padding:28px var(--lp-gutter) 40px;text-align:center;color:var(--ink-muted);font-size:13px}.lp-footer-inner{max-width:var(--lp-max);flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin:0 auto;display:flex}.lp-footer a{color:var(--ink-secondary);font-weight:600;text-decoration:none}.lp-footer a:hover{color:var(--ink-primary)}.lp-compare-wrap{background:var(--bg-surface);border:1.5px solid var(--ink-primary);box-shadow:var(--shadow-card);border-radius:16px 18px 14px 16px;margin-top:36px;overflow:hidden}.lp-compare-scroll{-webkit-overflow-scrolling:touch;overflow-x:auto}.lp-compare{border-collapse:collapse;width:100%;min-width:640px;font-size:14px}.lp-compare th,.lp-compare td{text-align:center;vertical-align:middle;border-bottom:1px solid #2d374814;padding:14px 16px}.lp-compare th:first-child,.lp-compare td:first-child{text-align:left;color:var(--ink-primary);width:28%;padding-left:20px;font-weight:600}.lp-compare thead th{background:var(--bg-sidebar);color:var(--ink-secondary);white-space:nowrap;border-bottom:1.5px solid #2d37481f;font-size:13px;font-weight:800}.lp-compare thead th.is-us{color:var(--ink-primary)}.lp-compare-us-pill{background:var(--ink-primary);color:#faf8f3;border-radius:999px;align-items:center;gap:6px;padding:5px 12px;font-size:12.5px;font-weight:800;display:inline-flex}.lp-compare tbody tr:last-child td{border-bottom:none}.lp-compare tbody tr:hover td{background:#f9f7f1b3}.lp-compare tbody tr:hover td.is-us{background:#e89a3c1f}.lp-compare td.is-us{background:#f5f3ff59}.lp-cell-yes,.lp-cell-no,.lp-cell-partial{border:1.5px solid;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:13px;font-weight:800;display:inline-flex}.lp-cell-yes{background:var(--pastel-green-bg);border-color:var(--pastel-green-border);color:var(--pastel-green-ink)}.lp-cell-no{background:var(--pastel-coral-bg);border-color:var(--pastel-coral-border);color:var(--pastel-coral-ink)}.lp-cell-partial{background:var(--pastel-yellow-bg);border-color:var(--pastel-yellow-border);color:var(--pastel-yellow-ink);font-family:var(--font-hand);border-radius:8px;width:auto;min-width:52px;height:auto;padding:4px 10px;font-size:13px;font-weight:600}.lp-compare-note{text-align:center;font-family:var(--font-hand);color:var(--ink-muted);background:var(--bg-sidebar);border-top:1px dashed #2d37481f;padding:14px 20px 18px;font-size:15px}@media (max-width:600px){.lp-compare th,.lp-compare td{padding:12px 10px;font-size:13px}.lp-compare th:first-child,.lp-compare td:first-child{padding-left:12px}}@media (prefers-reduced-motion:reduce){.lp-root{scroll-behavior:auto}.lp-reveal{opacity:1;transition:none;transform:none}.lp-hero-underline path,.lp-path-card,.lp-teacher-card .lp-cursor,.lp-dag-node.is-current rect,.lp-quiz-feedback{animation:none!important}.lp-hero-underline path{stroke-dashoffset:0}.lp-btn,.lp-scrap,.lp-audience-card,.lp-principle{transition:none}}@supports selector(:has(*)){html:has(.lp-doc){scroll-behavior:smooth;height:auto;overflow:visible}html:has(.lp-doc) body{height:auto;overflow:hidden visible}.lp-root.lp-doc{height:auto;min-height:100dvh;overflow:visible}@supports (overflow-x:clip){.lp-root.lp-doc{overflow-x:clip}}}.lp-doc [id]{scroll-margin-top:76px}.lp-nav-cta{white-space:nowrap;min-height:40px;padding:8px 14px;font-size:14px}.lp-btn-lg{min-height:52px;padding:12px 20px;font-size:16px}.lp-hero-id{padding-top:clamp(28px,6vw,72px)}.lp-hero-copy .lp-id-h1{letter-spacing:-.03em;text-wrap:balance;margin-bottom:18px;font-size:clamp(29px,7.6vw,48px);font-weight:800;line-height:1.1}.lp-id-h1>span{display:block}@media (min-width:921px){.lp-hero-copy .lp-id-h1{max-width:20ch}}.lp-hero-exam .lp-hero-copy{max-width:760px}.lp-mark{color:inherit;background:linear-gradient(transparent 58%, var(--washi-tape-yellow) 58%, var(--washi-tape-yellow) 92%, transparent 92%);-webkit-box-decoration-break:clone;box-decoration-break:clone;padding:0 .06em}.lp-hero-id .lp-hero-sub,.lp-chips{margin-bottom:22px}.lp-chips-label{font-family:var(--font-hand);color:var(--ink-secondary);margin-bottom:10px;font-size:17px}.lp-chips-row{flex-wrap:wrap;gap:10px;display:flex}.lp-chip{border:var(--border-pen);background:var(--bg-surface);min-height:52px;color:var(--ink-primary);box-shadow:var(--shadow-btn);-webkit-tap-highlight-color:transparent;border-radius:12px 14px 11px 13px;align-items:center;gap:10px;padding:12px 16px;font-size:16px;font-weight:700;text-decoration:none;transition:transform .12s,box-shadow .12s,background .15s,border-color .15s;display:inline-flex}.lp-chip>svg:first-child{color:var(--accent-ink);flex-shrink:0}.lp-chip-arrow{opacity:.55;margin-left:auto}.lp-chip:hover{box-shadow:var(--shadow-btn-hover);background:var(--accent-soft);border-color:var(--accent);transform:translate(-1px,-1px)}.lp-chip:active{background:var(--accent-soft);transform:translate(1px,1px);box-shadow:1px 1px #2d374829}.lp-chip:focus-visible{outline:2px solid var(--accent);outline-offset:3px}@media (max-width:560px){.lp-chips-row{grid-template-columns:1fr;display:grid}}@media (max-width:920px){.lp-hero-desktop-only{display:none}}.lp-hero-stage-id{min-height:360px;padding-top:20px;padding-bottom:96px}.lp-hero-stage-id .lp-teacher-card{bottom:0;left:10%}.lp-demo-section{padding-top:clamp(24px,6vw,96px)}.lp-demo-grid{grid-template-columns:1fr auto;align-items:center;gap:clamp(32px,6vw,72px);display:grid}@media (max-width:860px){.lp-demo-grid{grid-template-columns:1fr}}.lp-demo-note{font-family:var(--font-hand);color:var(--ink-muted);max-width:52ch;margin-top:14px;font-size:15.5px;line-height:1.5}.lp-demo-note a{color:var(--ink-secondary);text-underline-offset:3px}.lp-phone{background:var(--ink-primary);border-radius:38px 40px 36px 39px;justify-self:center;width:min(340px,100%);padding:10px;position:relative;box-shadow:4px 6px #2d37482e}.lp-phone-notch{border-radius:var(--radius-pill);background:var(--ink-primary);z-index:2;width:84px;height:20px;position:absolute;top:18px;left:50%;transform:translate(-50%)}.lp-phone-screen{background:var(--bg-app);border-radius:30px;flex-direction:column;height:600px;display:flex;overflow:hidden}.lp-phone-bar{background:var(--bg-surface);border-bottom:1.5px dashed #2d374826;justify-content:space-between;align-items:baseline;gap:8px;padding:44px 16px 12px;display:flex}.lp-phone-course{font-size:15px;font-weight:800}.lp-phone-date{font-family:var(--font-hand);color:var(--accent-ink);background:var(--accent-soft);border:1px solid var(--accent-border);border-radius:var(--radius-pill);white-space:nowrap;padding:1px 10px;font-size:14px}.lp-phone-feed{overscroll-behavior:contain;flex-direction:column;flex:1;gap:12px;padding:14px;display:flex;overflow-y:auto}.lp-phone-bubble{border:1.5px solid var(--pastel-blue-border);background:var(--pastel-blue-bg);border-radius:14px 14px 14px 6px;max-width:94%;padding:10px 12px;font-size:14.5px;line-height:1.55}.lp-phone-bubble.is-ok{background:var(--pastel-green-bg);border-color:var(--pastel-green-border)}.lp-phone-bubble.is-gap{background:var(--pastel-coral-bg);border-color:var(--pastel-coral-border)}.lp-phone-quiz,.lp-phone-plan{border:var(--border-pen);border-radius:var(--radius-card);background:var(--bg-surface);box-shadow:var(--shadow-card);padding:12px}.lp-phone-quiz-label{font-family:var(--font-hand);color:var(--ink-muted);margin-bottom:4px;font-size:14px}.lp-phone-quiz-q{margin-bottom:10px;font-size:15px;font-weight:700;line-height:1.45}.lp-phone-opts{gap:8px;display:grid}.lp-phone-opt{text-align:left;background:var(--bg-surface);cursor:pointer;-webkit-tap-highlight-color:transparent;border:1.5px solid #2d374859;border-radius:10px;align-items:center;gap:10px;min-height:46px;padding:8px 12px;font-size:15px;font-weight:600;transition:border-color .15s,background .15s;display:flex}.lp-phone-opt:hover:not(:disabled){border-color:var(--ink-primary);background:var(--bg-app)}.lp-phone-opt:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.lp-phone-opt:disabled{cursor:default;color:var(--ink-secondary)}.lp-phone-opt.is-correct{border-color:var(--pastel-green-border);background:var(--pastel-green-bg);color:var(--pastel-green-ink)}.lp-phone-opt.is-wrong{border-color:var(--pastel-coral-border);background:var(--pastel-coral-bg);color:var(--pastel-coral-ink)}.lp-phone-opt-key{width:26px;height:26px;font-family:var(--font-hand);border:1.5px solid;border-radius:50%;flex-shrink:0;place-items:center;font-size:14px;display:grid}.lp-phone-next{align-self:flex-start}.lp-phone-plan ul{gap:8px;list-style:none;display:grid}.lp-phone-plan li{border:1px dashed #2d374833;border-radius:10px;align-items:flex-start;gap:10px;padding:8px 10px;font-size:14px;font-weight:700;line-height:1.35;display:flex}.lp-phone-plan li>svg{flex-shrink:0;margin-top:1px}.lp-phone-plan em{font-style:normal;font-family:var(--font-hand);color:var(--ink-muted);font-size:14px;font-weight:400;display:block}.lp-phone-plan li.is-known{background:var(--pastel-green-bg);border:1px solid var(--pastel-green-border);color:var(--pastel-green-ink)}.lp-phone-plan li.is-current{background:var(--pastel-yellow-bg);border:1px solid var(--pastel-yellow-border)}.lp-phone-dot{border:1.5px solid var(--ink-primary);border-radius:50%;flex-shrink:0;width:16px;height:16px;margin-top:1px}.lp-phone-plan li.is-current .lp-phone-dot{background:var(--pastel-yellow-border)}.lp-phone-dot.is-pending{border-style:dashed}.lp-steps{grid-template-columns:repeat(3,1fr);gap:18px;margin-top:32px;list-style:none;display:grid}@media (max-width:800px){.lp-steps{grid-template-columns:1fr}}.lp-step{border:var(--border-pen);background:var(--bg-surface);box-shadow:var(--shadow-card);border-radius:14px 16px 12px 15px;padding:22px 20px}.lp-step-num{border:1.5px solid var(--accent-border);background:var(--accent-soft);width:36px;height:36px;color:var(--accent-ink);font-family:var(--font-hand);border-radius:50%;place-items:center;margin-bottom:12px;font-size:19px;display:grid}.lp-step h3{margin-bottom:6px;font-size:18px;font-weight:800}.lp-step p{color:var(--ink-secondary);font-size:14.5px;line-height:1.6}.lp-price-card{border:var(--border-pen-thick);background:var(--bg-surface);border-radius:16px 18px 14px 17px;max-width:520px;margin-top:28px;padding:24px;box-shadow:4px 6px #2d37481f}.lp-price-card ul{gap:12px;margin-bottom:14px;list-style:none;display:grid}.lp-price-card li{align-items:flex-start;gap:10px;font-size:15.5px;font-weight:600;line-height:1.45;display:flex}.lp-price-card li>svg{color:var(--pastel-green-ink);flex-shrink:0;margin-top:1px}.lp-price-note{font-family:var(--font-hand);color:var(--ink-muted);margin-bottom:18px;font-size:16px}.lp-price-paid{color:var(--ink-secondary);border-top:1.5px dashed #2d37482e;margin-top:18px;padding-top:14px;font-size:14px;line-height:1.6}.lp-faq-layout{grid-template-columns:1.4fr 1fr;align-items:start;gap:28px;margin-top:32px;display:grid}@media (max-width:900px){.lp-faq-layout{grid-template-columns:1fr}}.lp-faq{gap:10px;display:grid}.lp-faq-item{background:var(--bg-surface);box-shadow:var(--shadow-card);border:1.5px solid #2d374866;border-radius:12px}.lp-faq-item summary{cursor:pointer;-webkit-tap-highlight-color:transparent;min-height:48px;padding:13px 44px 13px 16px;font-size:15.5px;font-weight:700;line-height:1.45;list-style:none;position:relative}.lp-faq-item summary::-webkit-details-marker{display:none}.lp-faq-item summary:after{content:"+";font-family:var(--font-hand);color:var(--ink-muted);font-size:22px;position:absolute;top:50%;right:16px;transform:translateY(-50%)}.lp-faq-item[open] summary:after{content:"–"}.lp-faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:12px}.lp-faq-item p{color:var(--ink-secondary);padding:0 16px 16px;font-size:15px;line-height:1.65}.lp-trust{gap:16px;display:grid}.lp-founder-note{border:1px solid var(--pastel-yellow-border);background:var(--pastel-yellow-bg);box-shadow:var(--shadow-sticky);border-radius:4px 12px 6px 10px;padding:18px;transform:rotate(-.8deg)}.lp-founder-note h3{margin-bottom:8px;font-size:15px;font-weight:800}.lp-founder-note p{font-family:var(--font-hand);color:var(--pastel-yellow-ink);margin-bottom:8px;font-size:16.5px;line-height:1.45}.lp-founder-sign{text-align:right}.lp-contact{border:var(--border-dashed);background:#fff9;border-radius:12px;padding:18px}.lp-contact-title{margin-bottom:12px;font-weight:800}.lp-contact-actions{gap:10px;display:grid}.lp-contact-actions .lp-btn{overflow-wrap:anywhere;width:100%}.lp-contact-legal{color:var(--ink-muted);margin-top:12px;font-size:13.5px}.lp-contact-legal a{color:var(--ink-secondary);text-underline-offset:3px}.lp-flow{border:var(--border-pen);background:var(--bg-surface);max-width:560px;box-shadow:var(--shadow-card);border-radius:16px;gap:12px;margin-top:28px;padding:20px;list-style:none;display:grid}.lp-flow-who{font-family:var(--font-hand);color:var(--ink-muted);margin-bottom:2px;font-size:13.5px;display:block}.lp-tags{flex-wrap:wrap;gap:8px;margin-top:24px;list-style:none;display:flex}.lp-tags li{border-radius:var(--radius-pill);background:var(--bg-surface);border:1.5px solid #2d37484d;padding:8px 14px;font-size:14.5px;font-weight:600}.lp-tags-links a{color:var(--ink-primary);text-underline-offset:3px}@media (prefers-reduced-motion:reduce){html:has(.lp-doc){scroll-behavior:auto}.lp-chip,.lp-phone-opt{transition:none}}