:root{color:#26252a;font-synthesis:none;text-rendering:optimizelegibility;--paper:#f7f4ed;--paper-bright:#fffdf8;--ink:#26252a;--muted:#69666c;--rule:#cdc8bf;--rule-light:#e2ddd4;--violet:#574797;--violet-light:#eeeaf8;--coral:#e56250;--green:#266b50;--serif:"Yu Mincho", "Hiragino Mincho ProN", "Noto Serif JP", Georgia, serif;background:#f7f4ed;font-family:Yu Gothic,Hiragino Sans,Noto Sans JP,system-ui,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;background:var(--paper);min-width:320px;min-height:100%}body{background:var(--paper);min-width:320px;min-height:100vh;color:var(--ink);margin:0}button,input,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{color:inherit}a{color:var(--violet)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline-offset:3px;outline:3px solid #57479747}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.app-shell{min-height:100vh}.app-header{z-index:20;border-bottom:1px solid var(--rule);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#f7f4edf5;height:88px;position:sticky;top:0}.header-inner{grid-template-columns:minmax(300px,1fr) auto minmax(300px,1fr);align-items:center;width:min(1440px,100%);height:100%;margin:0 auto;padding:0 42px;display:grid}.brand,.desktop-nav button,.header-bookmarks,.mobile-nav button{cursor:pointer;background:0 0;border:0}.brand{font-family:var(--serif);letter-spacing:.04em;justify-self:start;align-items:center;gap:14px;padding:6px 0;font-size:26px;display:inline-flex}.brand svg{stroke-width:1.55px;width:48px;height:48px}.desktop-nav{align-items:stretch;gap:46px;height:100%;display:flex}.desktop-nav button{letter-spacing:.08em;min-width:74px;padding:0 4px;font-size:18px;position:relative}.desktop-nav button:after{content:"";background:0 0;height:3px;position:absolute;bottom:0;left:0;right:0}.desktop-nav button.is-active{color:var(--violet)}.desktop-nav button.is-active:after{background:var(--violet)}.header-bookmarks{justify-self:end;align-items:center;gap:9px;min-height:48px;padding:8px 6px;font-size:17px;display:inline-flex;position:relative}.header-bookmarks svg{width:25px;height:25px;color:var(--coral)}.header-bookmarks.is-active{color:var(--violet)}.bookmark-count{background:var(--coral);color:#fff;border-radius:999px;place-items:center;min-width:20px;height:20px;padding:0 5px;font-size:12px;line-height:1;display:inline-grid}main{display:block}.library-layout{grid-template-columns:minmax(0,1fr);gap:42px;width:min(1440px,100%);margin:0 auto;padding:34px 42px 88px;display:grid}.library-layout.with-path{grid-template-columns:minmax(0,1fr) minmax(312px,370px)}.library-main{min-width:0}.hero{padding:8px 0 28px}.hero-copy h1{max-width:880px;font-family:var(--serif);letter-spacing:.035em;margin:0;font-size:clamp(42px,3.5vw,52px);font-weight:500;line-height:1.35}.hero-copy h1 span{white-space:nowrap}.hero-copy p{font-family:var(--serif);letter-spacing:.03em;margin:10px 0 26px;font-size:19px;line-height:1.8}.hero-compact .hero-copy h1{font-size:clamp(38px,3vw,50px)}.search-field{border:1.5px solid var(--violet);background:#fffdf894;border-radius:15px;align-items:center;gap:14px;width:min(720px,100%);min-height:66px;padding:0 20px;transition:box-shadow .16s,background-color .16s;display:flex}.search-field:focus-within{background:var(--paper-bright);box-shadow:0 0 0 4px #5747971c}.search-field svg{color:#747178;flex:none;width:30px;height:30px}.search-field input{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;outline:0;font-size:18px}.search-field input::placeholder{color:#817e84;opacity:1}.topic-filters{scrollbar-width:none;gap:12px;width:100%;margin-top:22px;padding-bottom:2px;display:flex;overflow-x:auto}.topic-filters::-webkit-scrollbar{display:none}.topic-filters button{cursor:pointer;background:0 0;border:1px solid #d9d3ca;border-radius:999px;flex:none;min-width:116px;min-height:44px;padding:9px 22px;font-size:15px}.topic-filters button.is-selected{border-color:var(--violet);background:var(--violet);color:#fff}.paper-library{min-width:0}.list-heading{justify-content:space-between;align-items:center;gap:16px;min-height:54px;display:flex}.list-heading h2{font-family:var(--serif);letter-spacing:.04em;margin:0;font-size:22px;font-weight:500}.sort-control select{background:var(--paper-bright);min-height:44px;color:var(--ink);cursor:pointer;border:1px solid #bbb6ae;border-radius:10px;padding:8px 40px 8px 14px;font-size:14px}.paper-list{border-bottom:1px solid var(--rule)}.paper-row{border-top:1px solid var(--rule);content-visibility:auto;contain-intrinsic-size:auto 142px;grid-template-columns:52px minmax(0,1fr) 194px;align-items:center;gap:14px;min-height:142px;padding:17px 0 17px 18px;display:grid;position:relative}.paper-spine{background:var(--spine-color);border-radius:5px 0 0 5px;width:9px;position:absolute;top:1px;bottom:1px;left:0}.bookmark-button,.icon-button{color:#757278;cursor:pointer;background:0 0;border:0;place-items:center;width:44px;height:44px;padding:0;display:inline-grid}.bookmark-button svg{width:25px;height:25px}.bookmark-button.is-bookmarked{color:var(--coral)}.paper-copy{min-width:0}.paper-title-line{justify-content:space-between;align-items:start;gap:18px;display:flex}.paper-title-line h3{min-width:0;font-family:var(--serif);margin:0;font-size:24px;font-weight:500;line-height:1.3}.summary-status{min-height:28px;color:var(--green);white-space:nowrap;flex:none;align-items:center;gap:5px;font-size:13px;display:inline-flex}.summary-status svg{width:18px;height:18px}.summary-status.is-complete{color:var(--violet)}.paper-meta{color:var(--muted);flex-wrap:wrap;align-items:center;gap:0;margin-top:8px;font-size:13px;display:flex}.paper-meta span+span:before{content:"・";color:#3d3b40;margin:0 8px}.paper-summary{color:#3d3b40;max-width:760px;font-family:var(--serif);-webkit-line-clamp:2;-webkit-box-orient:vertical;margin:9px 0 0;font-size:14px;line-height:1.65;display:-webkit-box;overflow:hidden}.paper-actions{gap:9px;display:grid}.button{cursor:pointer;letter-spacing:.02em;border-radius:8px;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:8px 12px;font-size:14px;font-weight:600;text-decoration:none;display:inline-flex}.button svg{width:20px;height:20px}.button-primary{border:1px solid var(--violet);color:var(--violet);background:0 0}.button-primary:hover{background:var(--violet-light)}.button-secondary{color:var(--ink);background:#fffdf8b3;border:1px solid #bdb8b0}.button-secondary:hover{background:var(--paper-bright)}.button-complete{border:1px solid var(--green);color:var(--green);background:#e7f0eb}.external-icon{margin-left:auto;width:16px!important;height:16px!important}.desktop-reading-path{min-width:0}.reading-path{background-color:#fffdf88c;background-image:repeating-linear-gradient(#0000 0 35px,#766f671f 36px);border:1px solid #d1cbc2;border-radius:18px;padding:30px 28px;position:sticky;top:120px;box-shadow:0 6px 16px #3f372c0d}.reading-path-heading{align-items:center;gap:12px;display:flex}.reading-path-heading svg{width:34px;height:34px}.reading-path-heading h2{font-family:var(--serif);letter-spacing:.05em;margin:0;font-size:26px;font-weight:500}.reading-path-intro{font-family:var(--serif);margin:18px 0 12px;font-size:14px}.reading-path ol{margin:0;padding:0;list-style:none}.reading-path li{position:relative}.reading-path li:not(:last-child):after{content:"";border-left:1px dashed var(--violet);position:absolute;top:62px;bottom:-13px;left:19px}.reading-path li button{text-align:left;cursor:pointer;background:0 0;border:0;grid-template-columns:42px minmax(0,1fr) 20px;align-items:start;gap:12px;width:100%;min-height:110px;padding:14px 0;display:grid}.path-number{border:1px solid var(--violet);background:var(--paper-bright);width:42px;height:42px;color:var(--violet);font-family:var(--serif);border-radius:50%;place-items:center;font-size:21px;display:grid}.path-copy{min-width:0}.path-copy strong{font-family:var(--serif);font-size:18px;font-weight:500;line-height:1.35;display:block}.path-copy small{color:var(--muted);margin-top:6px;font-size:12px;display:block}.path-chevron{width:18px;color:var(--violet);margin-top:10px}.path-note{color:#433777;background:#f7f4fdb8;border:1px solid #a99ed0;border-radius:12px;align-items:flex-start;gap:10px;margin-top:18px;padding:18px;display:flex}.path-note svg{flex:none}.path-note p{font-family:var(--serif);margin:0;font-size:13px;line-height:1.7}.mobile-reading-path{display:none}.empty-state{border-top:1px solid var(--rule);text-align:center;align-content:center;place-items:center;min-height:320px;padding:54px 24px;display:grid}.empty-state>svg{width:68px;height:68px;color:var(--violet)}.empty-state h3{font-family:var(--serif);margin:18px 0 6px;font-size:23px}.empty-state p{color:var(--muted);margin:0;line-height:1.7}.text-button{border:0;border-bottom:1px solid var(--violet);min-height:44px;color:var(--violet);cursor:pointer;background:0 0;margin-top:16px;padding:0 16px}.content-page{width:min(900px,100% - 48px);margin:0 auto;padding:62px 0 110px}.content-page-heading{border-bottom:1px solid var(--rule);align-items:flex-start;gap:18px;padding-bottom:34px;display:flex}.content-page-heading>svg{width:46px;height:46px;color:var(--violet)}.content-page-heading h1{font-family:var(--serif);margin:0;font-size:42px;font-weight:500}.content-page-heading p{color:var(--muted);margin:8px 0 0}.markdown-article{font-family:var(--serif);font-size:16px;line-height:1.9}.markdown-article h1,.markdown-article h2,.markdown-article h3,.markdown-article h4{color:var(--ink);font-family:var(--serif);font-weight:600;line-height:1.45}.markdown-article h2{border-bottom:1px solid var(--rule);margin:54px 0 16px;padding-bottom:10px;font-size:27px}.markdown-article h3{margin:38px 0 12px;font-size:21px}.markdown-article h4{margin:28px 0 10px;font-size:18px}.markdown-article p{margin:0 0 18px}.markdown-article ul,.markdown-article ol{margin:0 0 22px;padding-left:1.5em}.markdown-article li+li{margin-top:8px}.markdown-article code{background:#ece7df;border-radius:5px;padding:.12em .35em;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:.88em}.markdown-article blockquote{border-left:4px solid var(--violet);color:#403b50;background:#eeeaf894;margin:26px 0;padding:20px 24px}.markdown-article hr{border:0;border-top:1px solid var(--rule);margin:44px 0}.table-scroll{max-width:100%;margin:22px 0 30px;overflow-x:auto}.markdown-article table{border-collapse:collapse;background:#fffdf880;width:100%;min-width:560px;font-family:Yu Gothic,Hiragino Sans,Noto Sans JP,sans-serif;font-size:14px;line-height:1.65}.markdown-article th,.markdown-article td{border:1px solid var(--rule);text-align:left;vertical-align:top;padding:12px 14px}.markdown-article th{background:#eeeae2;font-weight:700}.reader-backdrop{z-index:100;background:#1d1b217a;place-items:center;padding:24px;animation:.16s ease-out fade-in;display:grid;position:fixed;inset:0}.paper-reader{background:var(--paper);border:1px solid #bdb7ae;border-radius:18px;flex-direction:column;width:min(900px,100%);max-height:min(920px,100vh - 48px);animation:.22s cubic-bezier(.2,.8,.2,1) sheet-in;display:flex;overflow:hidden;box-shadow:0 24px 64px #1a162138}.reader-toolbar{border-bottom:1px solid var(--rule);letter-spacing:.08em;background:#f7f4edf5;flex:0 0 64px;grid-template-columns:1fr auto 1fr;align-items:center;padding:0 18px;font-size:14px;font-weight:700;display:grid}.reader-toolbar .icon-button{justify-self:start}.reader-bookmark{cursor:pointer;background:0 0;border:0;justify-self:end;align-items:center;gap:7px;min-height:44px;padding:0 4px;font-size:13px;display:inline-flex}.reader-bookmark svg{width:21px;color:var(--coral)}.reader-view-switcher{border-bottom:1px solid var(--rule);background:#eeeae2;flex:none;justify-content:center;gap:8px;padding:10px 18px;display:flex}.reader-view-switcher button{min-height:38px;color:var(--muted);cursor:pointer;font:inherit;background:0 0;border:1px solid #0000;border-radius:999px;padding:7px 18px;font-size:13px;font-weight:700;transition:background .16s,border-color .16s,color .16s}.reader-view-switcher button:hover{color:var(--ink)}.reader-view-switcher button[aria-pressed=true]{background:var(--paper-bright);color:var(--violet);border-color:#b8b0a5;box-shadow:0 1px 3px #27213414}.reader-scroll{overscroll-behavior:contain;min-height:0;overflow-y:auto}.reader-header{border-bottom:1px solid var(--rule);background:var(--paper-bright);padding:54px 64px 42px}.reader-kicker{color:var(--violet);letter-spacing:.05em;margin:0 0 14px;font-size:13px;font-weight:700}.reader-header h1{font-family:var(--serif);margin:0;font-size:clamp(32px,4vw,46px);font-weight:500;line-height:1.3}.reader-authors{color:var(--muted);margin:16px 0 0;font-size:14px;line-height:1.7}.reader-actions{gap:12px;margin-top:28px;display:flex}.reader-actions .button{min-width:150px}.paper-reader .markdown-article{padding:20px 64px 80px}.paper-reader .japanese-reading>blockquote:first-child{margin-top:28px}.mobile-nav{display:none}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes sheet-in{0%{opacity:0;transform:translateY(12px)scale(.99)}to{opacity:1;transform:translateY(0)scale(1)}}@media (width<=1160px){.header-inner,.library-layout{padding-left:28px;padding-right:28px}.header-inner{grid-template-columns:minmax(260px,1fr) auto minmax(180px,1fr)}.library-layout.with-path{grid-template-columns:minmax(0,1fr) 310px;gap:28px}.paper-row{grid-template-columns:44px minmax(0,1fr)}.paper-actions{grid-column:2;grid-template-columns:repeat(2,minmax(150px,194px))}.summary-status{display:none}}@media (width<=980px){.library-layout.with-path{grid-template-columns:minmax(0,1fr)}.desktop-reading-path{display:none}.mobile-reading-path{margin:2px 0 24px;display:block}.mobile-reading-path .reading-path{padding:22px;position:static}.mobile-reading-path .reading-path-intro,.mobile-reading-path .path-note{display:none}.mobile-reading-path .reading-path ol{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px;display:grid}.mobile-reading-path .reading-path li:after{display:none}.mobile-reading-path .reading-path li button{grid-template-columns:34px minmax(0,1fr);gap:8px;min-height:0;padding:8px 0 4px}.mobile-reading-path .path-number{width:34px;height:34px;font-size:17px}.mobile-reading-path .path-copy strong{font-size:14px}.mobile-reading-path .path-chevron{display:none}}@media (width<=760px){body{padding-bottom:calc(70px + env(safe-area-inset-bottom))}.app-header{height:74px}.header-inner{grid-template-columns:minmax(0,1fr) auto;padding:0 18px}.brand{white-space:nowrap;gap:10px;min-width:0;font-size:20px}.brand svg{flex:none;width:42px;height:42px}.desktop-nav,.desktop-only{display:none}.header-bookmarks{justify-content:center;min-width:48px}.header-bookmarks svg{width:28px;height:28px}.bookmark-count{position:absolute;top:3px;right:-1px}.library-layout{padding:0 18px 42px}.hero{padding:38px 0 24px}.hero-copy h1{letter-spacing:.025em;font-size:31px;line-height:1.52}.hero-copy p{margin:10px 0 22px;font-size:16px;line-height:1.8}.hero-compact .hero-copy h1{font-size:31px}.search-field{min-height:62px;padding:0 16px}.search-field svg{width:27px;height:27px}.search-field input{font-size:16px}.topic-filters{gap:9px;width:calc(100% + 18px);margin-top:18px;padding-right:18px}.topic-filters button{min-width:auto;padding:8px 18px;font-size:14px}.mobile-reading-path{margin-top:0;margin-bottom:22px}.mobile-reading-path .reading-path{border-radius:14px;padding:20px 16px;overflow:hidden}.reading-path-heading h2{font-size:22px}.reading-path-heading svg{width:29px;height:29px}.mobile-reading-path .reading-path ol{gap:8px}.mobile-reading-path .reading-path li button{display:block}.mobile-reading-path .path-number{margin-bottom:8px}.mobile-reading-path .path-copy strong{word-break:break-word;font-size:13px;line-height:1.35}.mobile-reading-path .path-copy small{margin-top:5px;font-size:10px}.list-heading{min-height:52px}.list-heading h2{font-size:21px}.sort-control select{max-width:150px;padding-right:30px;font-size:13px}.paper-row{contain-intrinsic-size:auto 262px;grid-template-columns:40px minmax(0,1fr);align-items:start;gap:8px;min-height:0;padding:20px 0 22px 13px}.paper-spine{width:7px}.bookmark-button{margin-top:2px}.paper-title-line{display:block}.paper-title-line h3{font-size:22px;line-height:1.32}.paper-meta{gap:4px 0;margin-top:9px;font-size:12px}.paper-meta span+span:before{margin:0 5px}.paper-summary{-webkit-line-clamp:3;margin-top:10px;font-size:14px}.paper-actions{grid-column:2;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.paper-actions .button{padding:8px 7px;font-size:13px}.paper-actions .external-icon{display:none}.mobile-nav{z-index:40;height:calc(70px + env(safe-area-inset-bottom));padding:4px 8px env(safe-area-inset-bottom);border-top:1px solid var(--rule);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffdf8f7;grid-template-columns:repeat(4,1fr);display:grid;position:fixed;bottom:0;left:0;right:0}.mobile-nav button{color:#4b494e;align-content:center;place-items:center;gap:3px;min-height:62px;padding:5px 2px 3px;font-size:11px;display:grid;position:relative}.mobile-nav button:after{content:"";background:0 0;height:3px;position:absolute;bottom:0;left:18%;right:18%}.mobile-nav button svg{width:25px;height:25px}.mobile-nav button.is-active{color:var(--violet)}.mobile-nav button.is-active:after{background:var(--violet)}.content-page{width:calc(100% - 36px);padding:38px 0 58px}.content-page-heading{gap:12px;padding-bottom:24px}.content-page-heading>svg{width:36px;height:36px}.content-page-heading h1{font-size:31px}.content-page-heading p{font-size:14px;line-height:1.7}.markdown-article{font-size:15px;line-height:1.88}.markdown-article h2{margin-top:42px;font-size:23px}.markdown-article h3{font-size:19px}.reader-backdrop{place-items:stretch stretch;padding:0}.paper-reader{border:0;border-radius:0;width:100%;max-height:100dvh}.reader-toolbar{flex-basis:calc(60px + env(safe-area-inset-top));padding:env(safe-area-inset-top) 12px 0}.reader-header{padding:36px 20px 30px}.reader-view-switcher{padding:8px 12px}.reader-view-switcher button{flex:1 1 0;padding-left:10px;padding-right:10px}.reader-header h1{font-size:31px}.reader-actions{grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.reader-actions .button{min-width:0;padding:8px;font-size:13px}.paper-reader .markdown-article{padding:12px 20px calc(58px + env(safe-area-inset-bottom))}}@media (width<=380px){.brand{font-size:18px}.brand svg{width:38px;height:38px}.hero-copy h1{font-size:29px}.paper-title-line h3{font-size:20px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}
