@charset "UTF-8";
:root{color-scheme:dark;--bg:#08090b;--panel:#121316;--panel-high:#1b1d21;--text:#f5f5f7;--muted:#a4a5ad;--line:#2b2c32;--accent:#f05b65;--accent-deep:#c42d3a;--green:#61dfa0;--font:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP","Yu Gothic UI",Meiryo,sans-serif;--ease:cubic-bezier(.2,.8,.2,1)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}button,input{font:inherit}button{color:inherit;cursor:pointer}button:disabled{cursor:default}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}svg{display:block}h1,h2,h3,p{margin:0}h1,h2,h3{text-wrap:balance}button,a{touch-action:manipulation}button{border:0}button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid #ffbec4;outline-offset:5px}::selection{background:#f05b6555;color:white}[hidden]{display:none!important}a,button,summary{scroll-margin-top:110px}main{overflow:clip}.section-shell{max-width:1248px;padding-inline:44px;margin-inline:auto}.eyebrow{font-size:11px;letter-spacing:.17em;font-weight:650;line-height:1.5;color:var(--accent)}.muted{color:#8c8e99}.gradient-text{color:#ff8c93;background:linear-gradient(100deg,#ffb7b5 0%,#f36a75 45%,#c9334b 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent}.skip{position:fixed;left:16px;top:-100px;z-index:500;padding:12px 20px;border-radius:12px;background:#fff;color:#111}.skip:focus{top:16px}
/* Controls float above content. Translucency is confined to this layer. */
.site-header{position:fixed;z-index:50;top:18px;left:0;right:0;padding-inline:24px}.nav-shell{max-width:1160px;margin:auto;display:flex;align-items:center;gap:24px;padding:10px 12px 10px 20px;min-height:66px;border:1px solid #ffffff1c;border-radius:22px;background:rgba(26,27,32,.82);backdrop-filter:blur(24px) saturate(130%);box-shadow:0 8px 30px #0003,inset 0 1px #ffffff0d}.brand{display:inline-flex;align-items:center;gap:7px;white-space:nowrap;letter-spacing:-.035em;font-size:19px;font-weight:750;min-height:44px;line-height:1}.brand-light{font-weight:400}.brand-mark{display:inline-grid;place-items:center;background:linear-gradient(145deg,#fc7c85,#bd2639);color:#fff;width:30px;height:32px;border-radius:9px;font-size:23px;line-height:1;font-weight:750;margin-right:3px;box-shadow:inset 0 1px #ffffff50}.brand-dot{display:none}.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto;font-size:12px;color:#ccced5}.nav-links a{min-height:44px;display:flex;gap:5px;align-items:center;transition:color .2s}.nav-links a:hover{color:white}.tiny-dot{width:5px;height:5px;border-radius:50%;background:var(--accent)}.nav-actions{display:flex;align-items:center;gap:8px}.button{min-height:52px;padding:14px 23px;display:inline-flex;align-items:center;justify-content:center;gap:28px;border-radius:100px;font-size:14px;font-weight:600;line-height:1.5;transition:background .25s,transform .25s var(--ease),box-shadow .25s;border:1px solid transparent}.button:hover{transform:translateY(-2px)}.button:active{transform:scale(.98)}.button.primary{background:linear-gradient(145deg,#f76d75,#d63a4a);color:#fff;box-shadow:inset 0 1px #ffffff36,0 6px 25px #bc29351a}.button.primary:hover{background:linear-gradient(145deg,#ff838b,#e74455);box-shadow:0 8px 28px #bc293533}.button.small{min-height:44px;padding:10px 17px;font-size:12px;gap:17px}.button.secondary{background:#26282e;border-color:#ffffff10}.button.secondary:hover{background:#32343b}.text-link{display:inline-flex;align-items:center;gap:15px;min-height:44px;padding:6px 0;background:none;font-size:14px;font-weight:600}.text-link:hover{color:var(--accent)}.icon-button{width:44px;height:44px;border-radius:50%;background:#ffffff0b;display:grid;place-content:center;font-size:16px;flex-shrink:0}.menu-toggle{display:none;gap:5px}.menu-toggle span{height:1px;width:16px;background:currentColor;transition:transform .2s}.menu-toggle[aria-expanded=true] span:first-child{transform:translateY(3px) rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{transform:translateY(-3px) rotate(-45deg)}.mobile-menu{margin:8px auto 0;padding:14px 24px;border:1px solid var(--line);border-radius:20px;background:#191b20;max-width:1160px;box-shadow:0 15px 30px #0008}.mobile-menu a{display:block;padding:14px 0;border-bottom:1px solid #ffffff0b}.mobile-menu a:last-child{border:0}
/* Hero */
.hero{position:relative;padding-top:160px;min-height:800px;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;column-gap:5px;padding-bottom:80px}.hero-copy{position:relative;z-index:2;padding-top:10px}.hero .eyebrow{display:flex;align-items:center;gap:10px;margin-bottom:29px}.status-light{height:6px;width:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 14px #ff6363aa}.hero-category{font-size:12px;color:#c0c0c9;margin-bottom:17px}.hero h1{font-size:clamp(38px,4.7vw,62px);line-height:1.3;font-weight:750;letter-spacing:-.065em;white-space:nowrap}.hero-lead{font-size:16px;color:#d5d5dc;line-height:2;margin-top:26px;letter-spacing:.015em}.hero-lead>span{font-size:14px;color:var(--muted)}.button-row{display:flex;align-items:center;gap:23px;margin-top:31px}.hero-meta{margin-top:22px;display:flex;align-items:center;gap:9px;color:#999ba5;font-size:11px}.meta-icon{font-size:18px}.meta-separator{width:1px;height:11px;background:#44464d;margin:0 4px}.hero-visual{position:relative;min-width:0;display:grid;place-items:center;align-self:stretch;min-height:540px}.visual-glow{position:absolute;inset:10% -18% 0;background:radial-gradient(ellipse,#79202e43 0%,#4818232a 38%,transparent 70%);filter:blur(20px)}.hero-book{width:100%;max-width:500px;position:relative;z-index:1;object-fit:contain;filter:drop-shadow(0 30px 35px #0009);animation:book-arrive 1.2s var(--ease) both}.edition-label{position:absolute;top:7px;left:12%;right:5%;display:flex;justify-content:space-between;gap:15px;font-size:9px;letter-spacing:.17em;color:#b4a6ad;z-index:2}.edition-label span{color:#777781}.orbit{position:absolute;border:1px solid #ffffff0b;transform:rotate(-18deg);border-radius:50%;width:105%;height:46%;top:30%}.orbit-two{width:130%;height:65%;top:20%;border-style:dashed;border-color:#ffffff07}.book-label{position:absolute;bottom:60px;left:-12px;z-index:3;display:flex;align-items:center;gap:16px;padding:14px 18px;border-radius:16px;background:#242127;border:1px solid #ffffff21;box-shadow:0 10px 45px #0005;font-size:12px;line-height:1.75;color:#c6bec5}.book-label b{font-size:14px;color:#fff}.mini-book{display:grid;place-items:center;width:38px;height:42px;background:#ffffff0b;border:1px solid #ffffff15;border-radius:8px;color:#f5a6ac;font-size:25px}.label-arrow{margin-left:15px;color:#e2a3aa;font-size:22px}.visual-caption{position:absolute;bottom:5px;right:10%;font-size:9px;letter-spacing:.18em;color:#8a7e88}.hero-bottom{position:absolute;bottom:25px;left:44px;right:44px;display:flex;justify-content:space-between;align-items:center;color:#777a85;font-size:9px;letter-spacing:.16em}.hero-bottom>a{display:flex;align-items:center;gap:17px;min-height:44px}.hero-bottom>a span{font-size:18px;color:#ccc}.hero-bottom>span{color:#d5d3db}.facts-strip{display:flex;align-items:center;border-top:1px solid #25262b;border-bottom:1px solid #25262b;padding-block:30px;gap:62px}.facts-strip>div{display:flex;align-items:flex-start;flex-direction:column;gap:3px}.facts-strip strong{font-size:31px;letter-spacing:-.05em;font-weight:550;line-height:1.35}.facts-strip strong span{font-size:12px;margin-left:7px;letter-spacing:0;font-weight:450}.facts-strip>div>span{font-size:11px;color:#8f919c}.facts-strip p{margin-left:auto;font-size:12px;color:#9d9fa9}.facts-strip p b{color:#dadbe0;font-weight:500}
/* Learning exploration */
.content-section{padding-top:110px;padding-bottom:70px}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:35px;margin-bottom:42px}h2{font-size:clamp(28px,3.5vw,43px);font-weight:650;line-height:1.45;letter-spacing:-.05em}.section-heading .eyebrow,.story-title .eyebrow,.lab-copy .eyebrow,.faq-section .eyebrow{margin-bottom:18px}.section-heading>p{color:var(--muted);font-size:14px;line-height:1.9;padding-bottom:5px}.curriculum-panel{border-radius:30px;border:1px solid #292b32;overflow:hidden;background:linear-gradient(115deg,#17181c,#111216)}.topic-tabs{display:flex;justify-content:center;gap:7px;width:max-content;max-width:calc(100% - 32px);margin:27px auto 0;padding:5px;border-radius:50px;background:#08090a;border:1px solid #2c2d33}.topic-tabs button{min-height:44px;padding:10px 25px;background:transparent;border-radius:50px;color:#a4a6b1;font-size:13px;transition:background .2s,color .2s}.topic-tabs button[aria-selected=true]{background:#303137;color:white;box-shadow:0 2px 5px #0005,inset 0 1px #ffffff12}.topic-panel{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:47px 60px 53px;min-height:390px}.chapter-number{font-size:10px;letter-spacing:.15em;color:#a1a3ad}.topic-copy h3{font-size:32px;line-height:1.5;letter-spacing:-.04em;margin:16px 0}.topic-copy>p{font-size:14px;line-height:1.95;color:#a9abb5;max-width:370px}.topic-tags{display:flex;gap:7px;flex-wrap:wrap;margin:21px 0 17px}.topic-tags span{font-size:10px;color:#bdbfc6;padding:4px 10px;border-radius:6px;background:#ffffff06;border:1px solid #ffffff0b}.topic-copy>.text-link{font-size:12px}.topic-art{position:relative;min-height:280px;display:grid;place-items:center;--art-color:#cf898a;--art-fill:#7e393e}.topic-art[data-art=sleep]{--art-color:#a6a2ef;--art-fill:#49415f}.topic-art[data-art=movement]{--art-color:#e6b482;--art-fill:#6e5133}.topic-art[data-art=hormones]{--art-color:#84c8c3;--art-fill:#255b57}.art-grid{position:absolute;inset:0;background-image:linear-gradient(#ffffff04 1px,transparent 1px),linear-gradient(90deg,#ffffff04 1px,transparent 1px);background-size:34px 34px;mask-image:radial-gradient(ellipse,black,transparent 70%)}.art-orbit{position:absolute;border:1px solid #ffffff0b;border-radius:50%;height:260px;width:260px}.a2{height:200px;width:200px;border-color:#ffffff10}.a3{height:140px;width:140px;border-color:#ffffff16}.art-core{position:relative;display:grid;place-items:center;width:105px;height:105px;border-radius:50%;background:radial-gradient(circle at 35% 25%,var(--art-fill),#171719 80%);color:var(--art-color);box-shadow:0 0 50px color-mix(in srgb,var(--art-fill) 35%,transparent),inset 0 1px #ffffff30;border:1px solid color-mix(in srgb,var(--art-color) 30%,transparent);transition:background .3s,color .3s}.art-core svg{width:67px}.art-label{position:absolute;font-size:10px;color:#d4d2db;background:#23242a;border:1px solid #ffffff18;border-radius:8px;padding:6px 14px;box-shadow:0 5px 15px #0002}.art-label.l1{top:45px;right:37px}.art-label.l2{left:22px;top:125px}.art-label.l3{bottom:38px;right:70px}.art-caption{position:absolute;bottom:0;letter-spacing:.18em;font-size:8px;color:#666b79}.more-topics{display:flex;justify-content:space-between;gap:16px;padding:23px 6px;font-size:11px;color:#adaeb7}.more-topics>span:first-child{color:#777b87}.story-section{display:grid;grid-template-columns:1fr 1fr;gap:80px;padding-top:40px;padding-bottom:110px;align-items:center}.story-title>p:not(.eyebrow){font-size:14px;line-height:2;color:var(--muted);margin-top:25px}.story-title .text-link{margin-top:24px}.reading-steps article{display:flex;align-items:center;gap:22px;border-top:1px solid var(--line);padding:29px 0}.reading-steps article:last-child{border-bottom:1px solid var(--line)}.reading-steps article>span:first-child{color:var(--accent);font-size:12px;font-variant-numeric:tabular-nums;align-self:flex-start;margin-top:4px}.reading-steps h3{font-size:17px;font-weight:550;margin-bottom:6px}.reading-steps p{font-size:12px;color:#999da9}.step-symbol{margin-left:auto;font-size:27px;color:#6d717e;flex-shrink:0}
/* Purchase choices */
.plans-section{padding-block:96px;background:#101114;border-top:1px solid #ffffff06;border-bottom:1px solid #ffffff06}.plan-switch{display:flex;width:max-content;background:#090a0c;border:1px solid #2b2d34;padding:5px;border-radius:50px;margin-bottom:26px}.plan-switch button{padding:10px 24px;min-height:44px;font-size:12px;color:#afb0b9;border-radius:50px;background:transparent}.plan-switch button[aria-pressed=true]{background:#33353d;color:#fff}.plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.plan-card{background:#1a1c21;border:1px solid #30323b;border-radius:26px;padding:35px;display:flex;flex-direction:column;position:relative}.plan-card.featured{background:radial-gradient(ellipse at 10% 0,#69242b3b,transparent 65%),#1a1b20;border-color:#66373f}.plan-type{font-size:10px;letter-spacing:.15em;color:#a5a5b1;margin-bottom:13px}.featured .plan-type{color:#f2939b}.plan-card h3{font-size:25px;letter-spacing:-.04em;font-weight:600}.plan-desc{font-size:12px;color:#b7b7c1;margin-top:8px}.price{font-size:43px;line-height:1.2;letter-spacing:-.05em;font-weight:550;margin-top:28px}.price span{font-size:11px;letter-spacing:0;margin-left:13px;font-weight:400;color:#bab9c3}.price-note{font-size:11px;color:#b1aeb8;margin-top:7px}.feature-list{list-style:none;padding:0;margin:27px 0 32px;display:grid;gap:13px;font-size:13px;color:#d1d0d8}.feature-list li{padding-left:22px;position:relative}.feature-list li:before{content:'✓';position:absolute;left:0;color:#bdb0bd;font-size:12px}.plan-card>.button{margin-top:auto}.plan-foot{text-align:center;font-size:10px;color:#a5a4af;margin-top:12px}.bundle-details{margin-top:20px;border:1px solid #2c2e35;border-radius:18px;padding:0 25px}.bundle-details summary{font-size:13px;min-height:62px;display:flex;align-items:center;justify-content:space-between;cursor:pointer;list-style:none}.bundle-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:4px 0 23px}.bundle-grid a{display:flex;flex-direction:column;gap:7px;border-top:1px solid #33353c;padding-top:16px}.bundle-grid b{font-size:14px;font-weight:550}.bundle-grid b span{float:right}.bundle-grid a>span{font-size:12px;color:#b5b5c0}.bundle-grid small{font-size:10px;color:#9699a4}.plan-disclaimer{font-size:11px;color:#989ba7;line-height:1.9;margin:22px 5px 0}.entry-row{display:flex;gap:25px;align-items:center;border-top:1px solid #292b32;padding-top:23px;margin-top:25px;font-size:12px}.entry-row>span{color:#a5a7b0;margin-right:auto}.entry-row a{min-height:44px;display:flex;align-items:center;gap:13px}.entry-row a:hover{color:var(--accent)}
/* Lab — a light surface makes the new destination distinct */
.lab-intro{padding-block:100px}.lab-card{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;border-radius:32px;background:radial-gradient(ellipse at 70% 90%,#e5dde2,transparent 65%),#f2f2f4;padding:64px;color:#202128;overflow:hidden}.lab-copy .eyebrow{color:#ae3a4b;font-size:10px}.lab-copy h2{font-size:35px;letter-spacing:-.055em}.lab-copy>p:not(.eyebrow){margin-top:21px;color:#626570;font-size:13px;line-height:2}.dark-button{background:#202127;color:white;margin-top:27px;font-size:13px}.dark-button:hover{background:#35363f}.lab-preview{background:#fff;border-radius:22px;padding:26px;box-shadow:0 20px 55px #39303b1a,0 1px 3px #00000006;border:1px solid #ffffff;transform:rotate(2deg)}.lab-preview>*{transform:rotate(-2deg)}.preview-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:25px}.preview-brand{font-size:17px;font-weight:750;letter-spacing:-.04em}.preview-brand span{font-weight:400;color:#a94959}.demo-chip{font-size:9px;padding:3px 8px;border-radius:100px;background:#f4edf0;color:#a05264}.preview-date{font-size:8px;letter-spacing:.15em;color:#898b94}.lab-preview h3{font-size:21px;margin:7px 0 21px;letter-spacing:-.04em}.preview-task{display:flex;align-items:center;gap:12px;border-top:1px solid #eeeef1;padding:15px 0;font-size:11px;color:#464650}.preview-task small{display:block;font-size:7px;letter-spacing:.14em;color:#9698a1;margin-top:3px}.task-check{width:26px;height:26px;border-radius:9px;border:1px solid #dddde3;display:grid;place-items:center;color:#a2a0a9;flex-shrink:0;font-size:10px}.task-check.done{background:#f7e8ec;border-color:#f7e8ec;color:#b44b61}.preview-bottom{display:flex;align-items:center;gap:10px;font-size:9px;color:#787984;margin-top:15px}.mini-ring{width:20px;height:20px;border-radius:50%;border:3px solid #efe6e9;border-left-color:#c36a7e;border-top-color:#c36a7e;transform:rotate(-30deg)}
/* LINE stays a full, useful section */
.line-section{padding-top:5px;padding-bottom:100px;display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.line-symbol{display:block;width:45px;color:var(--green);margin-bottom:22px}.line-heading .eyebrow{color:#7dbd9c;margin-bottom:15px;font-size:10px}.line-heading>p:last-child{color:#a5a7b0;font-size:14px;margin-top:22px;line-height:2}.line-reasons>div{display:flex;gap:20px;padding:23px 0;border-bottom:1px solid var(--line)}.line-reasons>div>span{font-size:10px;color:#719986;margin-top:4px}.line-reasons h3{font-size:16px;font-weight:500}.line-reasons p{font-size:12px;color:#969aa5;margin-top:5px}.line-button{width:100%;background:#8ae4b0;color:#0c2e1b;margin-top:26px;font-size:13px}.line-button:hover{background:#a5f0c4}.line-note{font-size:10px;color:#858b97;text-align:center;margin-top:12px}
/* FAQ and footer */
.faq-section{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;padding-top:60px;padding-bottom:100px;border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid #30313a}.faq-list details:first-child{border-top:1px solid #30313a}.faq-list summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:24px;cursor:pointer;font-size:14px;min-height:76px;padding:18px 0}.faq-list summary span{font-size:20px;color:#9195a2;transition:transform .25s}.faq-list details[open] summary span{transform:rotate(45deg)}summary::-webkit-details-marker{display:none}.faq-list details>p{font-size:13px;color:#a7aab5;line-height:2;padding-bottom:24px}.faq-list a{color:#f2a2ad;text-decoration:underline;text-underline-offset:4px}.site-footer{padding-top:30px;padding-bottom:28px;border-top:1px solid var(--line)}.footer-top{display:flex;align-items:center;gap:35px}.footer-top>p{font-size:12px;color:#989aa5}.motion-toggle{margin-left:auto;background:#17191f;border:1px solid #33353d;border-radius:30px;padding:10px 16px;min-height:44px;font-size:10px;color:#b0b3be}.footer-links{display:flex;gap:25px;flex-wrap:wrap;margin-block:23px;font-size:11px;color:#b3b4bd}.footer-links a{min-height:32px;display:flex;align-items:center}.legal{font-size:10px;color:#8c8f9b;line-height:1.9;max-width:940px}.footer-bottom{display:flex;justify-content:space-between;gap:15px;margin-top:25px;font-size:9px;color:#7c808e}.footer-bottom>span:last-child{font-size:8px;letter-spacing:.08em}
/* Native dialog and small transitions */
.contents-dialog{position:fixed;inset:0;width:min(600px,calc(100% - 32px));max-height:85dvh;margin:auto;padding:30px;background:#1b1c22;border:1px solid #41424d;border-radius:26px;color:var(--text);box-shadow:0 30px 100px #0008}.contents-dialog::backdrop{background:#000b;backdrop-filter:blur(8px)}.dialog-top{display:flex;justify-content:space-between;align-items:center}.contents-dialog h2{font-size:27px;margin:10px 0 20px}.contents-list{list-style:none;padding:0;margin:0 0 25px}.contents-list li{display:grid;grid-template-columns:25px 1fr auto;gap:15px;align-items:center;padding:13px 0;border-top:1px solid #33353f}.contents-list li>span{font-size:10px;color:var(--accent)}.contents-list b{font-size:13px;font-weight:500}.contents-list small{font-size:10px;color:#999daa}.contents-dialog>.button{width:100%}.dialog-open{overflow:hidden}.in-view{animation:soft-in .65s var(--ease) both}@keyframes soft-in{from{opacity:.55;transform:translateY(15px)}to{opacity:1;transform:none}}@keyframes book-arrive{from{opacity:0;transform:translateY(20px) rotate(2deg)}to{opacity:1;transform:none}}
/* Lab destination */
.lab-page .hero{grid-template-columns:1fr 1fr;min-height:700px;padding-top:165px;gap:65px}.lab-page .hero h1{font-size:clamp(36px,4.1vw,54px)}.lab-page .hero-lead{font-size:14px}.lab-page .hero-lead span{color:#bbb}.lab-page .lab-preview{transform:none;background:#1d2026;color:#f5f5f7;border-color:#363943;box-shadow:0 35px 100px #0005}.lab-page .lab-preview>*{transform:none}.lab-page .preview-task{color:#d4d5dc;border-color:#363842}.lab-page .preview-brand span{color:#ea9eae}.lab-page .task-check{border-color:#494d5b}.lab-page .demo-chip{color:#eeafbc;background:#583341}.lab-page .preview-bottom{color:#b5b7c0}.lab-page .preview-date{color:#a9a9b5}.lab-page .lab-preview h3{font-size:26px}.lab-demo-wrap{position:relative}.lab-demo-wrap:before{content:'';position:absolute;inset:-70px;background:radial-gradient(ellipse,#75324855,transparent 65%);z-index:-1}.practice-button{width:100%;border:0;border-top:1px solid #363842;background:none;text-align:left;border-radius:0;min-height:69px}.practice-button[aria-pressed=true] .task-check{color:#fff;background:#ab526c;border-color:#ab526c}.practice-count{font-size:11px;color:#f2acbb;margin-left:auto}.lab-detail-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:35px}.lab-detail{padding:32px 28px;background:#14161b;border:1px solid #2b2f38;border-radius:24px}.lab-detail>span{font-size:12px;color:var(--accent)}.lab-detail h3{font-size:20px;margin:25px 0 15px;font-weight:550}.lab-detail p{font-size:13px;line-height:2;color:#a7aab5}.lab-detail small{display:block;color:#828794;font-size:10px;margin-top:17px}.lab-page .content-section{padding-top:70px;padding-bottom:80px}.lab-join{padding:60px;border-radius:30px;background:radial-gradient(ellipse at top right,#55213755,transparent 65%),#1a1b22;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;margin-bottom:90px}.lab-join h2{font-size:35px}.lab-join>div>p{font-size:14px;color:#aaaeb9;margin-top:17px}.billing-switch{display:flex;background:#0c0e12;border:1px solid #3a3d48;padding:5px;border-radius:50px;margin-bottom:20px;width:max-content}.billing-switch button{background:transparent;border-radius:40px;font-size:12px;padding:10px 20px;min-height:44px;color:#b1b2bc}.billing-switch button[aria-pressed=true]{color:white;background:#383b47}.join-price{font-size:43px;font-weight:550;letter-spacing:-.04em}.join-price span{font-size:12px;color:#b2b5bf;margin-left:8px;letter-spacing:0}.join-condition{font-size:12px;color:#c5bdc7;margin:8px 0 23px}.join-note{font-size:10px;color:#969daa;margin-top:14px}.lab-page .faq-section{padding-top:60px}.preview-notice{font-size:10px;line-height:1.8;color:#a9aab6;margin-top:20px}
@media(min-width:1500px){.hero{min-height:850px}.hero-book{max-width:530px}}
@media(max-width:1050px){.nav-links{gap:18px}.section-shell{padding-inline:32px}.hero{column-gap:0;min-height:720px}.hero h1{font-size:46px}.hero-visual{min-height:460px}.book-label{bottom:45px;left:0}.hero-bottom{left:32px;right:32px}.hero-lead{font-size:14px}.button-row{gap:17px}.button-row .button{padding-inline:18px;font-size:12px}.button-row .text-link{font-size:12px}.facts-strip{gap:45px}.topic-panel{padding:38px}.lab-card{gap:30px;padding:45px}.lab-copy h2{font-size:30px}.story-section{gap:40px}.line-section{gap:50px}.lab-page .hero{gap:35px}.lab-join{gap:35px;padding:40px}}
@media(max-width:800px){.nav-links{display:none}.nav-actions{margin-left:auto}.menu-toggle{display:grid}.hero{grid-template-columns:1fr 1fr;padding-top:130px;min-height:650px}.hero h1{font-size:36px}.hero-category{font-size:10px}.hero .eyebrow{font-size:8px;margin-bottom:23px}.hero-lead{font-size:13px}.hero-lead>span{font-size:11px}.button-row{align-items:flex-start;flex-direction:column;gap:8px;margin-top:23px}.hero-visual{min-height:370px}.edition-label{font-size:7px;left:5%}.book-label{font-size:10px;padding:10px 12px;gap:10px;bottom:35px}.book-label b{font-size:12px}.mini-book{width:30px;height:34px}.label-arrow{margin-left:3px}.hero-meta{font-size:9px;margin-top:12px}.facts-strip{gap:35px}.facts-strip p{display:none}.facts-strip>div{flex:1}.section-heading{gap:20px}.section-heading>p{font-size:12px}.topic-panel{padding:30px;gap:0}.topic-copy h3{font-size:27px}.topic-copy>p{font-size:12px}.art-orbit{width:200px;height:200px}.a2{width:155px;height:155px}.a3{width:115px;height:115px}.art-label.l1{right:0;top:60px}.art-label.l2{left:0}.art-label.l3{right:30px;bottom:55px}.art-core{width:90px;height:90px}.topic-art{min-height:290px}.more-topics{font-size:9px;gap:10px}.story-section{gap:30px}.reading-steps article{gap:15px}.reading-steps h3{font-size:15px}.step-symbol{display:none}.plan-card{padding:27px}.plan-card h3{font-size:23px}.feature-list{font-size:12px}.lab-card{padding:32px;gap:25px}.lab-copy h2{font-size:27px}.lab-copy>p:not(.eyebrow){font-size:12px}.lab-preview{padding:20px}.preview-task{font-size:10px}.preview-brand{font-size:15px}.lab-preview h3{font-size:18px}.line-section{gap:35px}.faq-section{gap:35px;grid-template-columns:.8fr 1.2fr}.faq-list summary{font-size:12px}.footer-top>p{display:none}.lab-page .hero{gap:24px}.lab-detail-grid{gap:14px}.lab-detail{padding:25px 20px}.lab-detail h3{font-size:18px}.lab-join{gap:25px;padding:32px}}
@media(max-width:600px){.section-shell{padding-inline:23px}.site-header{top:10px;padding-inline:13px}.nav-shell{padding:7px 8px 7px 14px;min-height:60px;border-radius:18px;gap:10px}.brand{font-size:16px;gap:4px}.brand-mark{width:25px;height:28px;border-radius:8px;font-size:20px}.button.small{padding:10px 14px;gap:9px;font-size:11px}.nav-actions{gap:5px}.icon-button{width:40px;height:44px}.hero{display:flex;flex-direction:column;align-items:stretch;padding-top:117px;padding-bottom:67px;min-height:0}.hero-copy{text-align:center;padding-top:0}.hero .eyebrow{justify-content:center;font-size:8px;margin-bottom:19px}.hero-category{font-size:10px;margin-bottom:13px}.hero h1{font-size:clamp(31px,8.9vw,49px);letter-spacing:-.065em;line-height:1.35}.hero-lead{font-size:13px;margin-top:18px;line-height:1.9}.hero-lead>span{font-size:11px}.button-row{flex-direction:row;align-items:center;justify-content:center;gap:18px;margin-top:23px}.button-row .button{min-height:48px;padding:12px 17px;font-size:11px;gap:14px}.button-row .text-link{font-size:10px;gap:6px}.hero-meta{justify-content:center;margin-top:12px;font-size:9px}.hero-visual{min-height:0;height:365px;margin-top:27px;align-self:auto}.hero-book{height:345px;width:345px;max-width:100%;object-fit:contain}.visual-glow{inset:-10% -12%}.edition-label{top:7px;left:5%;right:5%;font-size:7px}.orbit{width:95%;height:52%}.orbit-two{width:115%;height:70%;top:20%}.book-label{bottom:24px;left:0;padding:10px 13px}.visual-caption{font-size:7px;right:0;bottom:6px}.hero-bottom{left:23px;right:23px;bottom:12px;font-size:7px;letter-spacing:.11em}.hero-bottom>a{gap:10px;font-size:7px}.facts-strip{padding-block:22px;gap:16px}.facts-strip strong{font-size:26px}.facts-strip strong span{font-size:9px;margin-left:5px}.facts-strip>div>span{font-size:8px}.content-section{padding-top:65px;padding-bottom:38px}.section-heading{display:block;margin-bottom:27px}.section-heading .eyebrow{font-size:9px;margin-bottom:13px}h2{font-size:30px;line-height:1.5;letter-spacing:-.05em}.section-heading>p{font-size:12px;line-height:1.9;margin-top:18px}.curriculum-panel{border-radius:23px}.topic-tabs{gap:0;margin-top:19px;width:calc(100% - 28px);max-width:none;padding:4px}.topic-tabs button{padding:9px 8px;min-height:44px;font-size:11px;flex:1}.topic-panel{grid-template-columns:1fr;padding:26px 25px 22px;gap:10px;min-height:0}.topic-copy h3{font-size:27px;margin-top:12px}.topic-copy>p{font-size:12px;max-width:none}.chapter-number{font-size:9px}.topic-tags{margin-top:17px;margin-bottom:8px;gap:5px}.topic-tags span{font-size:9px;padding:4px 8px}.topic-art{min-height:245px;margin-top:0}.art-orbit{width:215px;height:215px}.a2{width:160px;height:160px}.a3{width:115px;height:115px}.art-label.l1{right:10%;top:31px}.art-label.l2{left:7%;top:100px}.art-label.l3{bottom:32px;right:13%}.more-topics{justify-content:flex-start;flex-wrap:wrap;font-size:10px;gap:8px 14px;padding:17px 2px}.more-topics>span:first-child{width:100%;font-size:9px}.story-section{grid-template-columns:1fr;gap:30px;padding-top:30px;padding-bottom:65px}.story-title .eyebrow{font-size:9px;margin-bottom:13px}.story-title>p:not(.eyebrow){font-size:12px;margin-top:20px}.story-title .text-link{margin-top:13px;font-size:12px}.reading-steps article{padding:23px 0;gap:20px}.reading-steps h3{font-size:16px}.reading-steps p{font-size:12px}.step-symbol{display:block}.plans-section{padding-block:60px}.plan-switch{margin-bottom:20px;width:100%}.plan-switch button{font-size:12px;padding:10px 18px;flex:1}.plan-grid{grid-template-columns:1fr;gap:18px}.plan-card{padding:29px;border-radius:23px}.plan-card h3{font-size:26px}.plan-desc{font-size:12px}.feature-list{font-size:12px;margin-bottom:27px}.price{font-size:43px}.bundle-details{padding-inline:18px}.bundle-details summary{font-size:11px;min-height:65px;gap:15px}.bundle-grid{grid-template-columns:1fr;gap:14px}.plan-disclaimer{font-size:10px;margin-top:20px}.entry-row{gap:10px 25px;flex-wrap:wrap;margin-top:20px;padding-top:20px}.entry-row>span{width:100%;font-size:11px}.entry-row a{font-size:12px}.lab-intro{padding-block:60px}.lab-card{grid-template-columns:1fr;padding:32px 25px;gap:35px;border-radius:25px}.lab-copy h2{font-size:29px}.lab-copy>p:not(.eyebrow){font-size:12px;margin-top:19px}.lab-copy .button{margin-top:24px;min-height:48px}.lab-preview{padding:23px;max-width:370px;width:100%;margin:auto;transform:none}.lab-preview>*{transform:none}.preview-top{margin-bottom:25px}.preview-task{font-size:11px;padding:16px 0}.lab-preview h3{font-size:21px}.line-section{grid-template-columns:1fr;gap:20px;padding-bottom:65px;padding-top:0}.line-symbol{width:42px;margin-bottom:17px}.line-heading>p:last-child{font-size:12px;margin-top:18px}.line-reasons>div{padding:19px 0}.line-reasons h3{font-size:15px}.line-reasons p{font-size:11px}.line-button{margin-top:23px}.faq-section{grid-template-columns:1fr;gap:27px;padding-top:52px;padding-bottom:65px}.faq-section .eyebrow{font-size:9px;margin-bottom:12px}.faq-list summary{font-size:12px;min-height:68px}.faq-list details>p{font-size:12px}.footer-top{gap:10px;flex-wrap:wrap}.footer-top .brand{font-size:16px}.motion-toggle{font-size:9px;padding:9px 12px}.footer-links{font-size:10px;gap:9px 19px;margin-block:20px}.legal{font-size:9px}.footer-bottom{flex-direction:column;font-size:8px;gap:8px;margin-top:20px}.contents-dialog{padding:22px;max-height:85dvh;border-radius:22px}.contents-dialog h2{font-size:25px}.contents-list li{grid-template-columns:20px 1fr;gap:4px 10px}.contents-list small{grid-column:2}.contents-list b{font-size:12px}.contents-list li{padding:10px 0}.lab-page .hero{display:flex;min-height:0;gap:35px;padding-top:120px;padding-bottom:58px}.lab-page .hero h1{font-size:36px}.lab-page .hero-lead{font-size:12px}.lab-page .hero .button-row{flex-direction:column;gap:4px}.lab-page .hero .button{font-size:13px}.lab-page .lab-preview{padding:25px;max-width:none}.lab-page .content-section{padding-top:15px;padding-bottom:45px}.lab-detail-grid{grid-template-columns:1fr;gap:14px;margin-top:25px}.lab-detail{padding:27px}.lab-detail h3{margin:15px 0 12px;font-size:21px}.lab-detail p{font-size:12px}.lab-join{grid-template-columns:1fr;padding:30px 26px;gap:28px;margin-bottom:65px;border-radius:23px}.lab-join h2{font-size:28px}.lab-join>div>p{font-size:12px}.lab-page .faq-section{padding-top:40px}.preview-notice{text-align:center;font-size:9px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.button:hover{transform:none}}
html[data-motion=off]{scroll-behavior:auto}html[data-motion=off] *,html[data-motion=off] *:before,html[data-motion=off] *:after{animation:none!important;transition:none!important}html[data-motion=off] .button:hover{transform:none}
@media(prefers-reduced-transparency:reduce){.nav-shell{background:#202126;backdrop-filter:none}.contents-dialog::backdrop{backdrop-filter:none;background:#000e}}
@media(prefers-contrast:more){:root{--muted:#d5d5dc;--line:#7c7f8b}.nav-shell{background:#17181c}.eyebrow{color:#ffb7be}.muted{color:#c6c7d1}.legal,.plan-disclaimer,.price-note,.line-note{color:#c6c7d1}.button.primary{background:#b52738}.topic-tabs button,.plan-switch button{color:#ddd}}
/* Final legibility pass: keep real text horizontal and controls comfortably sized. */
.lab-preview,.lab-preview>*{transform:none}
.button.primary{background:linear-gradient(145deg,#c83c4b,#a52135);color:#fff}
.button.primary:hover{background:linear-gradient(145deg,#d04554,#b72c3e)}
.nav-links{font-size:13px}
.topic-copy>p,.story-title>p:not(.eyebrow),.lab-copy>p:not(.eyebrow),.faq-list details>p{font-size:14px}
.reading-steps p,.line-reasons p,.plan-desc,.feature-list{font-size:13px}
.footer-links a{min-height:44px}
.hero h1{white-space:normal}
@media(max-width:600px){.lab-page .hero h1{font-size:clamp(27px,8.4vw,36px)}.hero-book{height:auto;aspect-ratio:1/1}}
@media(max-width:600px){.icon-button{width:44px}.hero-lead{font-size:14px}.hero-lead>span{font-size:12px}.hero-category{font-size:11px}.topic-copy>p,.story-title>p:not(.eyebrow),.lab-copy>p:not(.eyebrow),.faq-list details>p,.line-heading>p:last-child{font-size:13px}.reading-steps p,.line-reasons p,.plan-desc,.feature-list{font-size:12px}.faq-list summary{font-size:13px}.hero .button-row .button,.hero .button-row .text-link{font-size:12px}.hero .button-row{gap:12px}}