/* Richcoin / Reading Desk — shared semantic tokens */
:root{color-scheme:light;--bg:#f7f8fa;--surface:#fff;--surface-alt:#f0f3f6;--ink:#17222d;--muted:#5b6877;--faint:#6e7b88;--line:#dfe5eb;--strong-line:#c5d0db;--primary:#006a60;--primary-hover:#005449;--primary-soft:#e7f3ef;--accent:#175ad6;--focus:#276ae4;--shadow:0 3px 8px #122a4104,0 16px 40px #122a4106;--radius:16px;--small-radius:8px;--space:8px;--ease:cubic-bezier(.2,.7,.2,1);font-family:Inter,'Segoe UI','Noto Sans KR','Yu Gothic UI',Arial,sans-serif}
:root[data-theme=dark]{color-scheme:dark;--bg:#0d131b;--surface:#141e29;--surface-alt:#1b2734;--ink:#edf3fa;--muted:#abb9c8;--faint:#91a2b4;--line:#2b3949;--strong-line:#44566a;--primary:#7ee0c3;--primary-hover:#a3efd8;--primary-soft:#183a34;--accent:#8bb4ff;--focus:#98c0ff;--shadow:0 16px 40px #00000015}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:106px}body{margin:0;background:var(--bg);color:var(--ink);font-size:14px;line-height:1.6;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button,a,select,input{ -webkit-tap-highlight-color:transparent}button,a,input,select{transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease)}button{cursor:pointer}button:disabled{cursor:not-allowed}a{color:inherit;text-decoration:none}button{color:inherit}button:active:not(:disabled){transform:translateY(1px)}a:focus-visible,button:focus-visible,select:focus-visible,input:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:4px}button:disabled{opacity:.58}svg{width:20px;height:20px;flex-shrink:0}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-80px;left:16px;background:var(--ink);color:var(--surface);padding:12px 20px;z-index:100;border-radius:8px}.skip-link:focus{top:12px}.wrap{max-width:1240px;margin:0 auto;padding:0 40px}.site-header{position:sticky;top:0;background:var(--surface);border-bottom:1px solid var(--line);z-index:20}.header-inner{max-width:1440px;padding:0 40px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:76px}.brand{display:inline-flex;align-items:center;gap:10px;font-size:24px;letter-spacing:-1.1px;font-weight:750;white-space:nowrap}.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--primary);color:var(--surface);display:grid;place-items:center}.brand-mark svg{width:25px;height:25px}.brand-dot{color:var(--primary)}.primary-nav{display:flex;gap:26px;align-self:stretch;align-items:center}.primary-nav a{font-size:13px;white-space:nowrap;position:relative;color:var(--muted);padding:26px 0}.primary-nav a:hover,.primary-nav a.nav-current{color:var(--ink)}.primary-nav a.nav-current:after{content:'';height:2px;background:var(--primary);position:absolute;left:0;right:0;bottom:0}.header-tools{display:flex;align-items:center;gap:8px}.icon-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-width:44px;min-height:44px;border:1px solid transparent;background:transparent;border-radius:8px}.icon-button:hover{background:var(--surface-alt)}kbd{font-family:inherit;font-size:10px;border:1px solid var(--line);padding:1px 5px;border-radius:4px;color:var(--muted)}select{border:1px solid var(--line);border-radius:8px;min-height:40px;padding:0 10px;background:var(--surface);color:var(--ink);font-size:12px}h1,h2,h3,h4,p{margin:0}h1{font-size:clamp(28px,3.4vw,42px);font-weight:730;line-height:1.25;letter-spacing:-1.8px;max-width:760px;text-wrap:balance}h2{font-size:23px;font-weight:700;line-height:1.35;letter-spacing:-.8px}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.9px;color:var(--primary);display:flex;align-items:center;gap:9px;margin-bottom:14px}.eyebrow>span:first-child:empty{width:6px;height:6px;background:var(--primary);border-radius:50%}.edition-mark{margin-left:12px;font-size:9px;letter-spacing:1px;color:var(--faint);font-weight:500}.guide-section{padding-top:44px}.section-head{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}.guide-heading{align-items:flex-end}.section-description{font-size:14px;color:var(--muted);margin-top:13px;line-height:1.7}.mode{display:flex;flex-shrink:0;background:var(--surface-alt);padding:4px;border:1px solid var(--line);border-radius:10px;gap:3px}.mode button{border:1px solid transparent;background:transparent;white-space:nowrap;padding:10px 16px;min-height:44px;border-radius:7px;color:var(--muted);font-size:12px;font-weight:600}.mode button.active{color:var(--ink);background:var(--surface);border-color:var(--line);box-shadow:0 2px 3px #00000005}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.exchange{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;position:relative}.exchange-top{display:flex;gap:13px;align-items:center;padding:23px 28px;background:var(--surface)}.logo{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;font-size:26px;font-weight:750;background:color-mix(in srgb,var(--accent) 12%,var(--surface));color:var(--accent)}[data-theme=dark] .logo{color:color-mix(in srgb,var(--accent) 70%,white)}.exchange h3{font-size:22px;line-height:1.15;font-weight:700;letter-spacing:-.6px}.exchange-top small{font-size:11px;color:var(--muted)}.index{margin-left:auto;font-family:ui-monospace,monospace;font-size:11px;color:var(--faint);border:1px solid var(--line);border-radius:6px;padding:4px 7px}.guide-body{padding:0 28px 22px}.progress{display:flex;gap:6px;margin:0 0 24px}.progress button,.progress i{height:24px;min-width:0;flex:1;border:0;background:none;position:relative;padding:10px 0}.progress button:before,.progress i:before{content:'';display:block;height:3px;border-radius:3px;background:var(--line)}.progress .done:before{background:var(--primary)}.progress button:hover:before{background:var(--primary)}.step-kicker{font-size:10px;font-weight:650;color:var(--primary);letter-spacing:1.5px;font-variant-numeric:tabular-nums}.guide-body h4{font-size:24px;line-height:1.4;letter-spacing:-.8px;margin:9px 0 12px;font-weight:650;min-height:34px}.step-copy{min-height:74px;font-size:14px;color:var(--muted);line-height:1.8;max-width:55ch}.ref-slot{min-height:46px;margin-top:19px}.ref{display:flex;align-items:center;justify-content:center;width:100%;min-height:44px;border:1px solid var(--strong-line);background:var(--surface-alt);border-radius:8px;font-size:12px;font-weight:550;color:var(--ink)}a.ref:hover{border-color:var(--primary);background:var(--primary-soft)}.guide-actions{display:flex;justify-content:space-between;align-items:center;padding:17px 28px;border-top:1px solid var(--line);gap:15px}.back{border:0;background:none;font-size:12px;min-height:44px;padding:0 8px;color:var(--muted)}.next{border:1px solid transparent;border-radius:8px;background:var(--primary);color:var(--surface);font-weight:650;font-size:12px;min-height:44px;padding:0 20px}.next:hover{background:var(--primary-hover)}.guide-foot{padding:0 28px 17px;font-size:11px;color:var(--muted)}.guide-foot a:hover{color:var(--primary);text-decoration:underline}.reading-header{display:flex;align-items:end;justify-content:space-between;gap:24px;margin:48px 0 23px;padding-top:30px;border-top:1px solid var(--line)}.reading-header .eyebrow{color:var(--faint);font-size:9px;margin-bottom:9px}.reading-header h2{font-size:24px}.desk-caption{font-size:12px;color:var(--muted)}.overview{display:grid;grid-template-columns:1.05fr 1fr;gap:24px;align-items:stretch}.panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden;min-width:0}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:25px 26px 0}.title-group{display:flex;align-items:center;gap:11px}.title-group h2{font-size:19px;letter-spacing:-.5px}.section-icon{width:30px;height:30px;display:grid;place-items:center;color:var(--primary)}.edition{font-size:9px;color:var(--faint);text-align:right;line-height:1.8;letter-spacing:.3px;font-variant-numeric:tabular-nums}.panel-tabs{display:flex;gap:20px;overflow-x:auto;margin:14px 26px 0;border-bottom:1px solid var(--line)}.panel-tabs button{border:0;border-bottom:2px solid transparent;min-height:46px;white-space:nowrap;padding:10px 2px;background:none;color:var(--muted);font-size:12px}.panel-tabs button.active{color:var(--primary);border-bottom-color:var(--primary);font-weight:650}.panel-tabs button:hover{color:var(--ink)}.event{display:grid;grid-template-columns:68px 1fr;gap:14px;padding:20px 0;border-bottom:1px solid var(--line);margin:0 26px}.event time{display:flex;flex-direction:column;gap:4px;font-variant-numeric:tabular-nums}.event time strong{font-size:22px;letter-spacing:-.6px;line-height:1.2;font-weight:600}.event time small{font-size:9px;color:var(--muted)}.event h3,.brief h3{font-size:13px;line-height:1.7;font-weight:650;margin-bottom:4px}.event p{font-size:12px;color:var(--muted);line-height:1.65}.source{display:inline-flex;min-height:28px;align-items:center;font-size:10px;color:var(--primary);text-decoration:underline;text-underline-offset:3px}.event-arrow{display:none}.event.past{opacity:.75}.panel-caption{font-size:10px;line-height:1.7;color:var(--muted);margin:15px 26px 20px}.education-panel{background:var(--surface)}.education-panel .panel-heading{background:var(--surface)}.lesson{padding:23px 26px;border-bottom:1px solid var(--line);transition:background .18s}.lesson:hover{background:var(--surface-alt)}.lesson-meta{display:flex;align-items:center;gap:12px;margin-bottom:8px}.lesson-number{font-family:ui-monospace,monospace;font-size:10px;color:var(--faint)}.tag{font-size:10px;color:var(--primary);font-weight:550}.lesson h3{font-size:16px;line-height:1.5;letter-spacing:-.3px;margin-bottom:8px;font-weight:650}.lesson p{font-size:13px;color:var(--muted);line-height:1.85}.education-foot{display:flex;justify-content:space-between;margin:0;padding:18px 26px;font-size:11px;color:var(--muted);background:var(--surface-alt)}.education-foot span{color:var(--primary)}.community{margin:48px 0 40px}.community .eyebrow{font-size:9px;color:var(--faint);margin-bottom:9px}.search-field{position:relative;display:flex;align-items:center}.search-field svg{position:absolute;left:14px;width:17px;color:var(--muted)}input{color:var(--ink);background:var(--surface);border:1px solid var(--line);border-radius:9px;min-height:46px;padding:10px 14px;font-size:13px}input::placeholder{color:var(--faint)}.search-field input{padding-left:41px;width:280px}.micro-post{display:grid;grid-template-columns:38px 1fr;gap:17px;border-top:1px solid var(--line);padding:24px 0}.avatar{display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);border:1px solid var(--line);font-size:15px;font-weight:700;width:36px;height:36px;border-radius:12px}.note-meta{display:flex;gap:12px;font-size:10px;color:var(--faint);align-items:center;flex-wrap:wrap}.note-meta b{color:var(--ink);font-weight:650;letter-spacing:.5px}.note-meta time{margin-left:auto;font-variant-numeric:tabular-nums}.micro-post h3{font-size:16px;margin:9px 0 7px;font-weight:650;letter-spacing:-.3px}.micro-post p{font-size:13px;line-height:1.9;color:var(--muted);max-width:90ch}.note-topic{display:inline-block;font-size:10px;color:var(--primary);margin-top:10px}.pagination{display:flex;align-items:center;justify-content:center;gap:6px;margin:15px 0;flex-wrap:wrap}.pagination button{min-width:36px;min-height:36px;padding:5px 10px;border:1px solid transparent;border-radius:7px;background:none;font-size:11px;color:var(--muted)}.pagination button:hover{background:var(--surface-alt);color:var(--ink)}.pagination button.active{border-color:var(--line);color:var(--ink);background:var(--surface-alt);font-weight:700}.pagination:empty{display:none}.news-empty{padding:64px 28px;text-align:center;min-height:300px;display:flex;align-items:center;justify-content:center;flex-direction:column}.empty-icon{width:48px;height:48px;background:var(--surface-alt);border:1px solid var(--line);border-radius:14px;display:grid;place-items:center;color:var(--muted);margin-bottom:18px}.news-empty h3{font-size:16px;margin-bottom:9px}.news-empty p{font-size:12px;color:var(--muted);max-width:32ch}.empty{padding:32px 24px;color:var(--muted);text-align:center;font-size:13px}.brief{padding:23px 26px;border-bottom:1px solid var(--line)}.brief p{font-size:13px;color:var(--muted);line-height:1.8}.brief .tag{display:block;margin-bottom:9px}footer{border-top:1px solid var(--line);padding:25px 0;background:var(--surface)}footer .wrap{display:flex;align-items:center;gap:24px}footer .brand{font-size:19px}footer .brand-mark{width:26px;height:26px}footer .brand-mark svg{width:20px;height:20px}footer p{font-size:11px;color:var(--muted)}footer .wrap>span{font-size:10px;margin-left:auto;color:var(--faint)}dialog{padding:0;border:1px solid var(--strong-line);border-radius:16px;background:var(--surface);color:var(--ink);width:min(620px,calc(100vw - 32px));max-height:75vh;box-shadow:0 24px 100px #0005;margin:14vh auto auto}dialog::backdrop{background:#07101c88;backdrop-filter:blur(4px)}.command-header{display:flex;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line)}.command-header input{border:0;flex:1;min-width:0;background:none;padding:8px 0}.command-header>svg{color:var(--primary)}#command-results{max-height:45vh;overflow:auto;padding:8px}.command-result{display:block;padding:12px 14px;border-radius:8px;font-size:14px}.command-result:hover,.command-result:focus{background:var(--surface-alt)}.command-result small{display:block;color:var(--faint);font-size:10px;margin-bottom:3px}.command-footer{padding:12px 20px;display:flex;justify-content:space-between;border-top:1px solid var(--line);font-size:10px;color:var(--muted)}.flash{animation:flash .5s var(--ease)}@keyframes flash{from{background:var(--primary-soft)}to{background:transparent}}
@media(min-width:1100px){.guide-heading>div:first-child{max-width:790px}.guide-heading{flex-wrap:wrap}.guide-heading .mode{margin-left:auto}}
@media(max-width:1100px){.header-inner{padding:0 24px;gap:18px}.primary-nav{gap:17px}.primary-nav a{font-size:11px}.header-tools{gap:2px}.search-trigger kbd{display:none}.wrap{padding:0 28px}.guide-heading{align-items:flex-start;flex-direction:column}.guide-heading .mode{align-self:flex-end;margin-top:-3px}.guide-body,.exchange-top{padding-left:23px;padding-right:23px}.guide-body h4{font-size:22px}.step-copy{min-height:101px}.title-group h2{font-size:17px}.panel-heading{padding:22px 20px 0}.event{margin:0 20px;grid-template-columns:58px 1fr;gap:10px}.panel-tabs{margin-left:20px;margin-right:20px;gap:15px}.lesson{padding:22px 20px}.desk-caption{max-width:40%;text-align:right}}
@media(max-width:760px){html{scroll-padding-top:135px}.header-inner{flex-wrap:wrap;gap:0;min-height:68px;padding:12px 20px 0}.brand{font-size:22px}.primary-nav{order:3;flex-basis:100%;overflow-x:auto;gap:25px;justify-content:space-between;margin-top:10px}.primary-nav a{font-size:11px;padding:11px 0 13px}.header-tools{margin-left:auto}.icon-button{min-width:38px;min-height:40px}.header-tools select{max-width:83px;font-size:11px;min-height:38px}.wrap{padding:0 20px}.guide-section{padding-top:30px}.eyebrow{font-size:9px;letter-spacing:1.4px}.edition-mark{display:none}h1{font-size:30px;letter-spacing:-1.3px;max-width:540px}.section-description{font-size:13px;margin-top:12px}.guide-heading{gap:18px;margin-bottom:18px}.guide-heading .mode{align-self:stretch;margin-top:0}.mode button{flex:1}.cards{grid-template-columns:1fr;gap:16px}.exchange-top{padding:21px 22px}.guide-body{padding:0 22px 20px}.step-copy{min-height:0;font-size:13px}.guide-body h4{font-size:22px}.guide-actions{padding:14px 22px}.guide-foot{padding-left:22px}.progress button{min-height:32px}.ref-slot{margin-top:18px}.reading-header{margin:32px 0 19px;padding-top:26px}.reading-header h2{font-size:22px}.desk-caption{display:none}.overview{grid-template-columns:1fr;gap:20px}.panel-heading{padding-top:23px}.title-group h2{font-size:19px}.event{padding:19px 0}.panel-tabs button{min-height:48px}.community{margin:32px 0}.community .section-head{align-items:stretch;flex-direction:column;gap:17px}.search-field input{width:100%}.micro-post{grid-template-columns:32px 1fr;gap:12px;padding:21px 0}.avatar{width:30px;height:30px;border-radius:10px;font-size:13px}.note-meta{gap:8px;font-size:9px}.micro-post h3{font-size:15px}.micro-post p{font-size:13px}.pagination button{min-width:44px;min-height:44px}footer .wrap{flex-wrap:wrap;gap:12px}footer p{order:3;flex-basis:100%}footer .wrap>span{margin-left:auto}.command-header{gap:8px;padding:12px}.command-header input{font-size:13px}.source{min-height:36px}}
:root:not([data-theme=dark]){--faint:#627080}
@media(max-width:760px){.icon-button{min-width:44px;min-height:44px}.progress button{min-height:44px}}
@media(min-width:761px) and (max-width:1000px){html{scroll-padding-top:130px}.header-inner{flex-wrap:wrap;padding-top:14px;gap:0}.primary-nav{order:3;flex-basis:100%;justify-content:center;gap:32px;margin-top:8px}.primary-nav a{padding:12px 0;font-size:12px}.header-tools{margin-left:auto}.panel-heading{align-items:flex-start}.title-group{min-width:0}.title-group h2{overflow-wrap:anywhere}.edition{flex-shrink:0;max-width:85px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}@media(forced-colors:active){.progress button:before{background:ButtonText}.next,.mode button.active{border:1px solid ButtonText}.panel-tabs button.active{border-bottom-color:Highlight}}