*{box-sizing:border-box}body{margin:0;background:#f7f7f0;color:#2a4237;font:17px/1.7 Georgia,serif}header,main,footer{max-width:1100px;margin:auto;padding:30px 24px}header{display:flex;justify-content:space-between;gap:20px;align-items:center;border-bottom:1px solid #d5ddd1}a{color:inherit}.brand{text-decoration:none;font-size:25px;font-weight:bold}nav a{font:14px Arial,sans-serif;margin-left:22px;text-decoration:none}h1{font-size:clamp(43px,7vw,80px);font-weight:normal;line-height:1.1;letter-spacing:-.045em}h2{font-size:38px;font-weight:normal}.hero{padding:75px 0;border-bottom:1px solid #d5ddd1}.hero p{font-size:21px;max-width:660px;color:#63796a}.eyebrow{font:11px Arial,sans-serif;letter-spacing:.2em;color:#6e9077}.books{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:25px;padding:20px 0 80px}.book{border:1px solid #d5ddd1;background:#fff;padding:23px}.book h3{font-weight:normal;font-size:26px;margin-bottom:8px}.book p{color:#63796a}.subtitle{font-style:italic}.cover{display:grid;place-items:center;aspect-ratio:3/4;background:linear-gradient(140deg,#e6eddf,#b9cdb9);font-size:70px;color:#65816c}.label{font:12px Arial,sans-serif;color:#729078;text-transform:uppercase}.price{font:600 15px Arial,sans-serif;color:#2a4237}.button{display:inline-block;background:#2a4237;color:white;padding:12px 23px;text-decoration:none;font:14px Arial,sans-serif}.detail{display:grid;grid-template-columns:310px 1fr;gap:55px;margin:70px 0}.filters{display:flex;flex-wrap:wrap;gap:9px;margin:15px 0 25px}.filters button{cursor:pointer;padding:9px 14px;border:1px solid #c4d0c6;background:transparent;color:#2a4237}.filters button.active{background:#2a4237;color:white}#book-search{font-size:16px;padding:12px;border:1px solid #c4d0c6;width:min(100%,420px)}.book[hidden],#empty-search[hidden]{display:none}.topic-nav{display:flex;gap:9px;flex-wrap:wrap;margin:25px 0 38px}.topic-nav a{border:1px solid #cad8c8;padding:8px 13px;text-decoration:none;font:13px Arial,sans-serif}.topic-nav a:hover,.topic-nav a:focus-visible{background:#e0ebe0}.sample{padding:32px;margin-top:35px;background:#edf1e9;border-left:3px solid #799681;overflow-wrap:anywhere}.related{border-top:1px solid #cad8c8;padding:25px 0 45px}.related a{display:block;margin:9px 0}.book a:focus-visible,nav a:focus-visible,.button:focus-visible{outline:3px solid #467153;outline-offset:4px}.empty{background:#e9efe6;padding:42px;margin:30px 0 80px}.about{padding:40px 0;border-top:1px solid #d5ddd1}footer{border-top:1px solid #d5ddd1;color:#758779;font:12px Arial,sans-serif}@media(max-width:700px){.detail{grid-template-columns:1fr}header{display:block}nav a{margin:0 16px 0 0}.detail .cover{max-width:350px}}
/* TIK brand layer. Structural foundation reused from recovered Steadleaf 6.18. */
:root{--ink:#182e36;--deep:#122832;--paper:#fbfaf6;--warm:#f1eee6;--line:#d6d6cd;--accent:#b87751;--soft:#61727a;--gold:#d4b48c}
html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);font:17px/1.72 Georgia,'Times New Roman',serif}a{color:inherit}a:hover{color:#a55f3a}*{box-sizing:border-box}header,main,footer{max-width:none;padding:0;margin:0}.wrap{max-width:1150px;padding:0 30px;margin:0 auto}h1,h2,h3{font-weight:normal}h1{letter-spacing:-.06em;line-height:1.07}h2{font-size:clamp(38px,5vw,63px);line-height:1.13;letter-spacing:-.05em;margin:12px 0 30px}h2 i,h1 em{font-weight:normal}p{margin:0 0 20px}.eyebrow{font:600 11px/1.7 Arial,sans-serif;letter-spacing:.19em;color:var(--accent);text-transform:uppercase}.gold{color:#d5b58b}.skip{position:absolute;top:-100px;left:16px;background:white;padding:12px;z-index:20}.skip:focus{top:12px}
.site-header{background:var(--paper);border-bottom:1px solid #e3e0d9}.header-inner{max-width:1190px;margin:auto;padding:20px 30px;display:flex;align-items:center;justify-content:space-between;gap:25px}.site-header .brand{display:flex;align-items:center;gap:12px;font-size:0;text-decoration:none;min-width:max-content}.brand-mark{background:var(--ink);color:#f5e7d3;width:44px;height:44px;display:grid;place-items:center;font:27px Georgia,serif}.brand-words{font:bold 17px/1 Arial,sans-serif;letter-spacing:.065em}.brand-words i{font-weight:400;color:var(--accent)}.brand-sub{display:block;font:8px/1.4 Arial,sans-serif;letter-spacing:.22em;margin-top:7px;color:#718187}.main-nav{display:flex;gap:32px;align-items:center}.main-nav a{margin:0;font:600 12px/1.4 Arial,sans-serif;letter-spacing:.02em;text-decoration:none}.main-nav .nav-feature{padding:13px 17px;border:1px solid #a7b0aa}.main-nav .nav-feature span{margin-left:10px}.main-nav a:hover,.footer-links a:hover{text-decoration:underline}
.dark{background:var(--deep);color:#f9f7f1}.hero{padding:0;border:0}.hero-grid{display:grid;grid-template-columns:1.36fr .64fr;min-height:625px;gap:12px}.hero-copy{padding:86px 22px 38px 0;display:flex;flex-direction:column}.hero h1{font-size:clamp(58px,6.4vw,89px);margin:25px 0 22px;letter-spacing:-.075em;max-width:740px}.hero h1 em{color:#dfc5a5}.hero-copy>p{font-size:20px;line-height:1.68;color:#b9c7c7;max-width:630px}.hero-actions{display:flex;align-items:center;gap:35px;margin-top:18px}.cta{display:inline-flex;align-items:center;justify-content:space-between;gap:27px;padding:14px 22px;background:#e2c8a8;color:var(--deep);text-decoration:none;font:600 13px Arial,sans-serif;min-height:48px}.cta:hover{background:#f3e0c7;color:#10242d}.text-link{font:600 13px Arial,sans-serif;text-decoration:none;border-bottom:1px solid #b68a68;padding-bottom:6px}.text-link span{margin-left:8px}.text-link.light{color:#f4efdf;border-bottom-color:#a4b3b0}.hero-bottom{display:flex;flex-wrap:wrap;gap:27px;border-top:1px solid #52636a;margin-top:auto;padding:26px 0 0;font:10px Arial,sans-serif;letter-spacing:.04em;color:#adbdc0}.hero-bottom strong{color:var(--gold);margin-right:8px}.hero-art{position:relative;background:radial-gradient(ellipse at 52% 43%,#2a4850,#102932 70%);border-left:1px solid #385058;display:flex;align-items:center;justify-content:center;overflow:hidden}.giant-ko{font:clamp(180px,22vw,340px)/1 'Noto Serif CJK KR','Malgun Gothic','Apple Myungjo',serif;color:#dbc2a2;transform:rotate(-5deg);opacity:.91}.vertical-note{position:absolute;top:34px;right:15px;writing-mode:vertical-rl;font:9px Arial,sans-serif;letter-spacing:.22em;color:#98b0b4}.ornament{position:absolute;bottom:33px;font:13px 'Noto Serif CJK KR',serif;color:#b7c5bb;letter-spacing:.12em}.ornament span{margin:0 10px;color:var(--gold)}
.section{padding:100px 0}.intro{background:var(--paper)}.split{display:grid;grid-template-columns:.98fr 1fr;gap:100px}.intro-right{padding-top:20px;color:#475a60;max-width:520px}.intro-right p{font-size:19px}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:40px}.section-head h2{margin-bottom:0}.warm{background:#efece4}.light{background:#f4f3ed}.product-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.product-card{background:#fff;border:1px solid #d9d9d0;display:flex;flex-direction:column;min-width:0}.product-card[hidden]{display:none}.product-cover,.large-cover{display:flex;flex-direction:column;position:relative;justify-content:space-between;text-decoration:none;color:#1e333a;aspect-ratio:4/4.5;padding:24px;overflow:hidden}.product-cover:hover{color:#1e333a;filter:brightness(.98)}.cover-blue{background:linear-gradient(135deg,#d4e1e1,#a3b7be)}.cover-cream{background:linear-gradient(150deg,#efe9d7,#d9cfb8)}.cover-peach{background:linear-gradient(150deg,#ecd9ca,#d0b4a4)}.cover-sage{background:linear-gradient(140deg,#dbe1d3,#b1c3af)}.cover-brand{font:600 10px Arial,sans-serif;letter-spacing:.18em}.cover-ko{font:clamp(34px,4.8vw,63px)/1.15 'Noto Serif CJK KR','Malgun Gothic',Georgia,serif;letter-spacing:-.07em;margin:auto;text-align:center}.product-cover strong,.large-cover strong{font:600 19px/1.2 Arial,sans-serif;max-width:230px;letter-spacing:.025em}.cover-foot{border-top:1px solid #617c8059;padding-top:13px;font:9px Arial,sans-serif;letter-spacing:.1em}.product-body{padding:24px 24px 20px;display:flex;flex:1;flex-direction:column}.product-type{color:#aa7154;text-transform:uppercase;font:600 10px Arial,sans-serif;letter-spacing:.09em}.product-type span{padding:0 6px}.product-body h3{font-size:26px;line-height:1.25;letter-spacing:-.03em;margin:13px 0 12px}.product-body h3 a{text-decoration:none}.product-body p{color:#617077;font:15px/1.65 Arial,sans-serif}.product-bottom{display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid #e2e1d9;margin-top:auto;padding-top:20px;font:12px Arial,sans-serif}.product-bottom a{text-decoration:none;font-weight:bold}.product-status{color:#566a71}.dot{display:inline-block;background:#bf9171;width:7px;height:7px;border-radius:50%;margin-right:5px}.launch-note{margin-top:25px;font:13px Arial,sans-serif;color:#5f706e}.method-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;margin-top:38px}.method-grid article{border-top:2px solid var(--ink);padding:29px 0}.method-no{font:600 11px Arial,sans-serif;letter-spacing:.16em;color:#b36b48}.method-grid h3{font-size:40px;letter-spacing:-.05em;line-height:1.1;margin:25px 0}.method-grid p{max-width:430px;color:#63747a}.wide-quote{background:#21363e;color:#f5f0e8;padding:92px 0}.wide-quote blockquote{font-size:clamp(35px,5vw,60px);line-height:1.27;letter-spacing:-.045em;margin:25px 0 30px}.wide-quote em{color:#dbbd9a}.light-link{color:#ead4b7;font:14px Arial,sans-serif;text-decoration:none;border-bottom:1px solid #ba9f82;padding-bottom:7px}
.site-footer{background:#f8f7f1;border-top:1px solid #e0dfd7;color:#2a3b40;font:13px Arial,sans-serif}.footer-inner{max-width:1150px;margin:auto;padding:65px 30px;display:flex;justify-content:space-between;gap:40px}.footer-brand{font:bold 17px Arial,sans-serif;letter-spacing:.08em;text-decoration:none}.footer-inner p{margin:15px 0;color:#6b7979}.footer-inner small{color:#8c9694}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 45px}.footer-links a{text-decoration:none}.footer-bottom{border-top:1px solid #dddcd4;padding:16px max(30px,calc((100vw - 1090px)/2));display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#8a9795}
.page-hero{background:#182e36;color:#f9f5ed;padding:90px 0 95px}.page-hero h1{font-size:clamp(52px,6vw,78px);margin:20px 0}.page-hero h1 em{color:#dac19e}.page-hero p:not(.eyebrow){font-size:20px;color:#bcc9c9;max-width:670px}.browse-bar{margin-bottom:36px;display:flex;flex-wrap:wrap;gap:18px;align-items:center}.browse-bar>label{font:bold 12px Arial,sans-serif;min-width:110px}.searchrow{position:relative;flex:1;min-width:220px;max-width:400px}.searchrow input{width:100%;border:1px solid #bec8c4;background:white;padding:12px 45px 12px 14px;color:var(--ink);font:15px Arial,sans-serif}.searchrow button{position:absolute;right:4px;top:2px;border:0;background:transparent;font-size:25px;cursor:pointer;color:#4e6468}.chips{display:flex;gap:8px;flex-wrap:wrap}.chip{font:12px Arial,sans-serif;border:1px solid #b4bcb9;background:transparent;color:#40545a;padding:11px 13px;cursor:pointer}.chip.active{background:var(--ink);color:white}.bottom-note{margin-top:55px;border:1px solid #d8d8cd;padding:25px 30px;background:#fff;font:14px/1.6 Arial,sans-serif}.bottom-note p{margin:8px 0 0}.book-detail-section{padding:33px 0 85px;background:#fbfaf6}.breadcrumbs{display:flex;align-items:center;gap:11px;font:12px Arial,sans-serif;color:#728080;margin-bottom:60px}.breadcrumbs a{text-decoration:none}.book-detail-grid{display:grid;grid-template-columns:minmax(310px,430px) 1fr;gap:75px}.large-cover{aspect-ratio:4/5;min-height:470px;padding:38px}.large-cover .cover-ko{font-size:72px}.large-cover strong{font-size:28px}.detail-copy{padding:15px 0}.detail-copy .sep{margin:0 11px}.detail-copy h1{font-size:clamp(40px,4.8vw,66px);line-height:1.13;margin:22px 0}.detail-lead{color:#51666b;font-size:21px;max-width:600px}.detail-metadata{display:flex;gap:30px;border-top:1px solid #c8cfca;border-bottom:1px solid #c8cfca;padding:20px 0;margin:31px 0}.detail-metadata span{display:flex;flex-direction:column;gap:9px;font:10px Arial,sans-serif;letter-spacing:.13em;color:#7a8987}.detail-metadata strong{font:600 13px Arial,sans-serif;color:#273c42;letter-spacing:0}.unavailable{padding:24px;background:#ecefe9}.unavailable p{font:14px/1.6 Arial,sans-serif;color:#62706b;margin:15px 0 19px}.tag{background:#d9dfd6;padding:5px 10px;font:600 10px Arial,sans-serif;text-transform:uppercase;letter-spacing:.08em}.cta.outline{border:1px solid var(--ink);background:transparent;padding:11px 16px}.detail-lower .takeaways{list-style:none;padding:0}.takeaways li{padding:15px 0;border-bottom:1px solid #d2d9d4;font-size:18px}.takeaways li:before{content:'↗';display:inline-block;margin-right:12px;color:#aa6d47}.detail-disclaimer{color:#74817e;font:12px/1.65 Arial,sans-serif;margin-top:30px}.standard-body .prose{max-width:800px}.prose h2{font-size:36px;margin-top:45px}.prose p{color:#4e6468;font-size:19px}.prose .lead{font-size:25px;color:#2e4348}.prose .note{background:#eeeae1;border-left:3px solid #b57d58;padding:27px;margin:35px 0}.prose .note p{font-size:17px;margin-bottom:0}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #b97d53;outline-offset:4px}
@media(max-width:980px){.main-nav{gap:18px}.main-nav a{font-size:12px}.hero-grid{grid-template-columns:1fr .38fr}.giant-ko{font-size:200px}.hero h1{font-size:65px}.product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.split{gap:45px}}
@media(max-width:690px){.wrap{padding:0 20px}.header-inner{padding:14px 20px;flex-wrap:wrap}.brand-mark{height:36px;width:36px;font-size:22px}.brand-words{font-size:14px}.brand-sub{font-size:7px}.main-nav{width:100%;justify-content:space-between;gap:10px;overflow-x:auto}.main-nav .nav-feature{display:none}.main-nav a{white-space:nowrap}.hero-grid{display:block;min-height:auto}.hero-copy{padding:58px 0 38px}.hero h1{font-size:clamp(48px,11.5vw,65px)}.hero-copy>p{font-size:17px}.hero-art{height:185px;border-left:0;border-top:1px solid #37525a}.giant-ko{font-size:170px}.ornament{bottom:15px;font-size:10px}.hero-actions{gap:19px}.hero-bottom{gap:10px 20px;margin-top:55px;font-size:9px}.section{padding:65px 0}.split,.method-grid,.book-detail-grid{grid-template-columns:1fr;gap:20px}.intro-right{padding-top:0}.section-head{display:block}.section-head .text-link{display:inline-block;margin-top:20px}.product-grid{grid-template-columns:1fr}.product-cover{aspect-ratio:4/3}.cover-ko{font-size:62px}.page-hero{padding:60px 0}.page-hero h1{font-size:54px}.browse-bar{display:block}.browse-bar>label{display:block;margin-bottom:9px}.searchrow{max-width:100%;margin-bottom:14px}.chips{margin-top:15px}.book-detail-section{padding-bottom:55px}.breadcrumbs{margin-bottom:30px}.large-cover{min-height:360px;aspect-ratio:4/4}.large-cover .cover-ko{font-size:56px}.detail-copy h1{font-size:42px}.detail-metadata{gap:18px}.footer-inner{padding:45px 20px;display:block}.footer-links{margin-top:30px}.footer-bottom{padding:16px 20px;display:block}.footer-bottom span{display:block;margin-top:10px}.method-grid h3{font-size:34px}}