@font-face{font-family:Clarity City Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./clarity-city-latin-ext-wght-normal-BcZj-dZx.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Clarity City Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(./clarity-city-latin-wght-normal-CXRY7kBt.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--bg:#e9f0f5;--surface:#fff;--ink:#0d2235;--ink-2:#4b6072;--line:#0f3b5f1f;--brand:#0f3b5f;--brand-2:#1c6e8c;--free:#12805c;--free-ink:#0b5c41;--free-tint:#d6f5e494;--free-line:#12805c52;--paid:#1f5fbf;--paid-ink:#174a94;--paid-tint:#deeafc99;--paid-line:#1f5fbf42;--new:#d9480f;--glass:#ffffff8c;--glass-strong:#ffffffb8;--glass-edge:#ffffffbf;--glass-hi:inset 0 1px 0 #ffffffd9;--blur:blur(18px) saturate(160%);--shine:#ffffff73;--shadow:0 1px 2px #0d22350d, 0 8px 28px #0f3b5f14;--shadow-lift:0 2px 4px #0d22350f, 0 18px 40px #0f3b5f29;--orb-opacity:.5;--radius:16px;--radius-sm:11px;--ease:cubic-bezier(.2, .7, .2, 1);--spring:cubic-bezier(.34, 1.56, .64, 1);--maxw:1600px;--gutter:clamp(16px, 3vw, 40px);--header-h:60px;--tabbar-h:64px;--font-display:"Clarity City Variable", "Segoe UI", system-ui, sans-serif;--font-body:"Clarity City Variable", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;font-family:var(--font-body);font-optical-sizing:auto;color:var(--ink);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;-webkit-tap-highlight-color:transparent;line-height:1.5}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--bg:#08131d;--surface:#12212f;--ink:#e4edf4;--ink-2:#9db0c0;--line:#ffffff17;--brand:#8cc8ea;--brand-2:#5fb3d6;--free:#43c597;--free-ink:#7fe0bb;--free-tint:#1c785638;--free-line:#43c59757;--paid:#6d9ff0;--paid-ink:#a9c6f7;--paid-tint:#24468042;--paid-line:#6d9ff04d;--new:#ff8a50;--glass:#12212f80;--glass-strong:#12212fb8;--glass-edge:#ffffff1a;--glass-hi:inset 0 1px 0 #ffffff12;--shine:#ffffff17;--shadow:0 1px 2px #0000004d, 0 8px 28px #00000047;--shadow-lift:0 2px 4px #0000004d, 0 20px 44px #00000073;--orb-opacity:.5}}*{box-sizing:border-box}body{background:var(--bg);min-height:100vh;margin:0}a{color:var(--brand-2)}h1,h2,h3{font-family:var(--font-display);letter-spacing:-.015em;margin:0;line-height:1.2}.tile-value,.filters-count,.badge-new,.access{font-family:var(--font-display)}button,input,select{font:inherit;color:inherit}.muted{color:var(--ink-2);font-weight:400}:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px}.backdrop{z-index:-1;pointer-events:none;position:fixed;inset:0;overflow:hidden}.backdrop span{width:60vmax;height:60vmax;opacity:var(--orb-opacity);border-radius:50%;animation:38s ease-in-out infinite alternate drift;position:absolute}.backdrop span:first-child{background:radial-gradient(circle,#12805c 0%,#0000 62%);top:-22vmax;left:-16vmax}.backdrop span:nth-child(2){background:radial-gradient(circle,#1f5fbf 0%,#0000 62%);animation-duration:46s;animation-delay:-12s;top:-10vmax;right:-24vmax}.backdrop span:nth-child(3){background:radial-gradient(circle,#1c6e8c 0%,#0000 62%);animation-duration:52s;animation-delay:-24s;bottom:-30vmax;left:18vw}.backdrop span:nth-child(4){width:44vmax;height:44vmax;opacity:calc(var(--orb-opacity) * .7);background:radial-gradient(circle,#5fb3d6 0%,#0000 60%);animation-duration:42s;animation-delay:-6s;bottom:-20vmax;right:-10vmax}@keyframes drift{0%{transform:translate(0,0)scale(1)}50%{transform:translate(6vw,4vh)scale(1.08)}to{transform:translate(-4vw,8vh)scale(.96)}}.glass,.panel,.abstract,.cite,.tile,.settings{background:var(--glass);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);border:1px solid var(--glass-edge);box-shadow:var(--glass-hi), var(--shadow)}.topbar{z-index:20;height:var(--header-h);padding-inline:max(var(--gutter), calc((100vw - var(--maxw)) / 2 + var(--gutter)));background:var(--glass-strong);border-width:0 0 1px;border-radius:0;align-items:center;display:flex;position:sticky;top:0}.brand{color:var(--brand);align-items:center;gap:11px;min-width:0;min-height:44px;text-decoration:none;display:flex}.brand-logo{width:36px;height:36px;box-shadow:0 4px 14px color-mix(in srgb, var(--brand-2) 35%, transparent);transition:transform .45s var(--spring);border-radius:10px;flex:none}.brand:hover .brand-logo{transform:rotate(-6deg)scale(1.06)}.brand-text{flex-direction:column;min-width:0;line-height:1.15;display:flex}.brand-name{font-family:var(--font-display);letter-spacing:-.02em;white-space:nowrap;font-size:1.14rem;font-weight:800}.brand-name span{font-weight:500}.brand-name .brand-owner{color:var(--free);font-weight:800}.brand-tag{color:var(--ink-2);white-space:nowrap;text-overflow:ellipsis;font-size:.75rem;overflow:hidden}@media (width>=720px) and (width<=1099px){.brand-tag{display:none}}.nav{z-index:21;height:var(--header-h);top:0;right:max(var(--gutter), calc((100vw - var(--maxw)) / 2 + var(--gutter)));box-shadow:none;-webkit-backdrop-filter:none;backdrop-filter:none;background:0 0;border:0;align-items:center;gap:4px;display:flex;position:fixed}.nav a{min-height:40px;color:var(--ink-2);transition:color .2s, background-color .25s var(--ease), transform .2s var(--ease);border-radius:12px;align-items:center;gap:7px;padding:8px 14px;font-weight:550;text-decoration:none;display:flex;position:relative}.nav a:hover{color:var(--ink);background:color-mix(in srgb, var(--brand-2) 9%, transparent)}.nav a:active{transform:scale(.96)}.nav a.active{color:var(--brand);background:color-mix(in srgb, var(--brand-2) 16%, transparent)}.nav-icon{transition:transform .35s var(--spring);font-size:1.05rem}.nav a.active .nav-icon{transform:scale(1.15)}@media (width>=720px) and (width<=1099px){.nav a{padding:8px 12px}.nav-icon{font-size:1.2rem}.nav-label{clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}}@media (width<=719px){.nav{height:calc(var(--tabbar-h) + env(safe-area-inset-bottom));box-sizing:border-box;padding:6px 6px calc(6px + env(safe-area-inset-bottom));background:var(--glass-strong);border-top:1px solid var(--glass-edge);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);justify-content:space-around;inset:auto 0 0;box-shadow:0 -6px 24px #0d223514}.nav a{flex-direction:column;flex:1;justify-content:center;gap:2px;height:100%;min-height:0;padding:4px;font-size:.75rem}.nav-icon{font-size:1.25rem}.nav a.active .nav-icon{transform:translateY(-2px)scale(1.15)}}.offline{top:var(--header-h);z-index:15;color:#6b4e00;text-align:center;background:#fff4d6;padding:8px 16px;font-size:.9rem;position:sticky}.main{max-width:var(--maxw);padding:26px var(--gutter) 56px;margin:0 auto}@media (width<=719px){.main{padding-top:18px;padding-bottom:calc(96px + env(safe-area-inset-bottom))}}.page{animation:page-in .35s var(--ease) backwards}@keyframes page-in{0%{opacity:0;transform:translateY(8px)}}.page-head{flex-wrap:wrap;justify-content:space-between;align-items:end;gap:6px 12px;margin-bottom:20px;display:flex}.page-head h1{letter-spacing:-.03em;font-size:clamp(1.6rem,1.15rem + 1.6vw,2.4rem);font-weight:750}.eyebrow{font-family:var(--font-display);letter-spacing:.08em;text-transform:uppercase;color:var(--free);flex:1 0 100%;margin:0;font-size:.78rem;font-weight:700}.lede{color:var(--ink-2);flex:1 0 100%;margin:2px 0 0;font-size:1.02rem}.layout{grid-template-columns:minmax(0,1fr);grid-template-areas:"head""side""main";display:grid}.layout>.page-head{grid-area:head}.layout>.sidebar{grid-area:side}.layout>.results{grid-area:main}.sidebar{border-radius:var(--radius);margin-bottom:18px;padding:14px}@media (width>=1100px){.layout{grid-template:"side head""side main"1fr/300px minmax(0,1fr);align-items:start;column-gap:26px}.layout>.page-head{margin-top:2px}.sidebar{top:calc(var(--header-h) + 18px);max-height:calc(100vh - var(--header-h) - 36px);scrollbar-width:thin;grid-row:1/-1;margin:0;padding:18px;position:sticky;overflow-y:auto}}.free-toggle{border-radius:var(--radius-sm);border:1px solid var(--line);cursor:pointer;background:color-mix(in srgb, var(--surface) 55%, transparent);min-height:52px;transition:background-color .3s var(--ease), border-color .3s;align-items:center;gap:12px;padding:10px 14px;display:flex;position:relative}.free-toggle.on{background:var(--free-tint);border-color:var(--free-line)}.free-toggle input{opacity:0;width:1px;height:1px;position:absolute}.free-toggle>span:last-child{flex-direction:column;display:flex}.free-toggle small{color:var(--ink-2)}.switch{background:color-mix(in srgb, var(--ink-2) 35%, transparent);width:46px;height:26px;transition:background-color .3s var(--ease);border-radius:999px;flex:none;position:relative}.switch:after{content:"";width:20px;height:20px;transition:transform .4s var(--spring), width .2s;background:#fff;border-radius:50%;position:absolute;top:3px;left:3px;box-shadow:0 1px 3px #0000004d}.free-toggle:active .switch:after{width:24px}.free-toggle.on .switch{background:var(--free)}.free-toggle.on .switch:after{transform:translate(20px)}.free-toggle.on:active .switch:after{transform:translate(16px)}.free-toggle input:focus-visible+.switch{outline:2px solid var(--brand-2);outline-offset:2px}.filters-bar{display:none}.filters-body{margin-top:12px}.region-chips{flex-wrap:wrap;gap:7px;display:flex;position:relative}.specialty-chips{flex-wrap:wrap;gap:7px;margin-top:12px;display:flex}.specialty-chips .chip-btn{font-weight:600}.specialty-chips .chip-btn.active{background:linear-gradient(135deg, var(--brand), var(--brand-2))}.chip-btn{cursor:pointer;border:1px solid var(--line);background:color-mix(in srgb, var(--surface) 60%, transparent);min-height:36px;transition:background-color .2s, color .2s, border-color .2s, transform .2s var(--spring);border-radius:999px;flex:none;padding:6px 14px}.chip-btn:hover{border-color:var(--brand-2)}.chip-btn:active{transform:scale(.94)}.chip-btn.active{background:var(--brand);border-color:var(--brand);color:var(--surface)}.filter-row{grid-template-columns:2fr 1.2fr 1.2fr .7fr .7fr;gap:10px;margin-top:12px;display:grid}.filter-row label{color:var(--ink-2);flex-direction:column;gap:5px;font-size:.8rem;font-weight:600;display:flex}select,input[type=search],input[type=password],input[type=email],input[type=url]{border-radius:var(--radius-sm);border:1px solid var(--line);background:color-mix(in srgb, var(--surface) 70%, transparent);width:100%;min-width:0;min-height:42px;padding:9px 11px;transition:border-color .2s,box-shadow .2s}select:hover,input:hover{border-color:color-mix(in srgb, var(--brand-2) 50%, var(--line))}select:focus,input:focus{border-color:var(--brand-2);box-shadow:0 0 0 3px color-mix(in srgb, var(--brand-2) 22%, transparent);outline:none}select option,select optgroup{background:var(--surface);color:var(--ink)}@media (width>=1100px){.sidebar .filter-row{grid-template-columns:1fr 1fr}.sidebar .filter-row label:nth-child(-n+3){grid-column:1/-1}}@media (width<=719px){.sidebar{padding:12px}.filters-bar{gap:8px;margin-top:10px;display:flex}.filters-toggle,.filters-clear{border-radius:var(--radius-sm);border:1px solid var(--line);cursor:pointer;background:color-mix(in srgb, var(--surface) 60%, transparent);min-height:44px;transition:transform .2s var(--spring);justify-content:center;align-items:center;gap:8px;padding:8px 14px;font-weight:600;display:inline-flex}.filters-toggle{flex:1}.filters-toggle:active,.filters-clear:active{transform:scale(.97)}.filters-count{background:var(--brand);min-width:22px;height:22px;color:var(--surface);border-radius:999px;place-items:center;padding:0 6px;font-size:.75rem;display:grid}.chev{transition:transform .3s var(--ease);margin-left:auto}.chev.up{transform:rotate(180deg)}.filters-body:not(.open){display:none}.filters-body.open{animation:drop-in .28s var(--ease)}.region-chips,.specialty-chips{scrollbar-width:none;scroll-snap-type:x proximity;flex-wrap:nowrap;margin-inline:-12px;padding-inline:12px;overflow-x:auto;-webkit-mask-image:linear-gradient(90deg,#0000,#000 12px calc(100% - 28px),#0000);mask-image:linear-gradient(90deg,#0000,#000 12px calc(100% - 28px),#0000)}.region-chips::-webkit-scrollbar{display:none}.specialty-chips::-webkit-scrollbar{display:none}.chip-btn{scroll-snap-align:start;min-height:44px}.filter-row{grid-template-columns:1fr 1fr}.filter-row label:nth-child(-n+3){grid-column:1/-1}select{min-height:46px}}@keyframes drop-in{0%{opacity:0;transform:translateY(-6px)}}.search{border-radius:var(--radius);flex-wrap:wrap;gap:8px;margin-bottom:16px;padding:10px;display:flex}.search input{flex:220px;min-height:46px;padding:11px 14px;font-size:1rem}.seg{border:1px solid var(--line);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--surface) 55%, transparent);gap:2px;padding:3px;display:inline-flex}.seg button{cursor:pointer;min-height:38px;color:var(--ink-2);transition:background-color .25s var(--ease), color .2s;background:0 0;border:0;border-radius:8px;padding:6px 14px}.seg button.active{background:var(--brand);color:var(--surface);box-shadow:0 2px 8px color-mix(in srgb, var(--brand) 35%, transparent)}@media (width<=719px){.search .btn-primary{flex:100%;justify-content:center}}.btn{border-radius:var(--radius-sm);border:1px solid var(--line);background:color-mix(in srgb, var(--surface) 70%, transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);min-height:42px;color:var(--ink);cursor:pointer;transition:transform .2s var(--ease), box-shadow .25s var(--ease), border-color .2s, background-color .2s;align-items:center;gap:6px;padding:9px 16px;font-weight:550;text-decoration:none;display:inline-flex}.btn:hover{border-color:var(--brand-2);transform:translateY(-1px);box-shadow:0 6px 16px #0f3b5f1f}.btn:active{box-shadow:none;transform:translateY(0)scale(.97)}.btn:disabled{opacity:.6;cursor:progress;transform:none}.btn-primary{background:linear-gradient(135deg, var(--brand), var(--brand-2));color:#fff;border-color:#0000}.btn-free{background:linear-gradient(135deg, var(--free), color-mix(in srgb, var(--free) 70%, #1c6e8c));color:#fff;border-color:#0000}.btn-free-outline{border-color:var(--free);color:var(--free-ink);background:var(--free-tint);font-weight:650}.btn-more{margin:26px auto 0;padding-inline:26px;display:flex}.actions{flex-wrap:wrap;gap:8px;margin:16px 0;display:flex}@media (width<=719px){.btn{min-height:46px}.detail .actions .btn{flex:calc(50% - 4px);justify-content:center}}.result-count{color:var(--ink-2);margin:0 0 12px;font-size:.9rem}.grid{grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));gap:16px;display:grid}.card{border-radius:var(--radius);border:1px solid var(--glass-edge);background-color:var(--glass);background-image:linear-gradient(115deg, transparent 38%, var(--shine) 50%, transparent 62%);min-height:180px;-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);box-shadow:var(--glass-hi), var(--shadow);transition:transform .35s var(--ease), box-shadow .35s var(--ease), border-color .3s, background-position .9s var(--ease);animation:card-in .5s var(--ease) backwards;animation-delay:calc(var(--i,0) * 45ms);background-position:130% 0;background-repeat:no-repeat;background-size:260% 100%;flex-direction:column;gap:9px;padding:16px 16px 14px;display:flex;position:relative}@keyframes card-in{0%{opacity:0;transform:translateY(14px)scale(.985)}}.card-free{background-color:var(--free-tint);border-color:var(--free-line)}.card-paid{background-color:var(--paid-tint);border-color:var(--paid-line)}.card-paid:after{content:"🔒";opacity:.5;font-size:1rem;position:absolute;bottom:12px;right:14px}@media (hover:hover){.card:not(.skeleton):hover{box-shadow:var(--glass-hi), var(--shadow-lift);background-position:-30% 0;transform:translateY(-4px)}.card-free:hover{border-color:color-mix(in srgb, var(--free) 60%, transparent)}.card-paid:hover{border-color:color-mix(in srgb, var(--paid) 55%, transparent)}}.card:not(.skeleton):active{transition-duration:.12s;transform:scale(.985)}.card-top{align-items:center;gap:8px;display:flex}.access{letter-spacing:.04em;text-transform:uppercase;border-radius:999px;padding:3px 10px;font-size:.75rem;font-weight:700}.access-free{color:var(--free-ink);background:color-mix(in srgb, var(--free) 18%, transparent)}.access-paid{color:var(--paid-ink);background:color-mix(in srgb, var(--paid) 15%, transparent)}.badge-new{letter-spacing:.05em;text-transform:uppercase;color:#fff;background:linear-gradient(135deg, var(--new), #f59f00);border-radius:7px;padding:3px 9px;font-size:.75rem;font-weight:800;animation:2.6s ease-in-out infinite glow}@keyframes glow{0%,to{box-shadow:0 0 0 0 color-mix(in srgb, var(--new) 0%, transparent)}50%{box-shadow:0 0 0 4px color-mix(in srgb, var(--new) 22%, transparent)}}.bookmark{margin-left:auto;margin-block:-8px;cursor:pointer;min-width:40px;min-height:40px;color:var(--ink-2);background:0 0;border:0;border-radius:12px;justify-content:center;align-items:center;gap:6px;margin-right:-8px;padding:4px 8px;font-size:1.3rem;transition:background-color .2s,color .2s;display:inline-flex}.bookmark:hover{background:color-mix(in srgb, var(--ink-2) 12%, transparent);color:var(--ink)}.bookmark-star{transition:transform .2s var(--spring);display:inline-block}.bookmark:active .bookmark-star{transform:scale(.85)}.bookmark.is-saved{color:#e0a100}.bookmark.pop .bookmark-star{animation:pop .5s var(--spring)}@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.5)rotate(-14deg)}to{transform:scale(1)rotate(0)}}.bookmark-label{font-size:.9rem;font-weight:600}@media (width<=719px){.bookmark{min-width:44px;min-height:44px}}.card-title{font-size:1.02rem;font-weight:650;line-height:1.35}.card-title a{color:var(--ink);text-decoration:none}.card-title a:before{content:"";border-radius:inherit;position:absolute;inset:0}.card-title a:focus-visible{outline:none}.card:has(.card-title a:focus-visible){outline:2px solid var(--brand-2);outline-offset:2px}.card .bookmark{z-index:1;position:relative}.card-authors,.card-meta{color:var(--ink-2);margin:0;font-size:.86rem}.card-meta{flex-wrap:wrap;gap:4px;margin-top:auto;display:flex}.journal{font-style:italic}.chips{flex-wrap:wrap;gap:5px;padding-right:22px;display:flex}.chip{background:color-mix(in srgb, var(--surface) 55%, transparent);border:1px solid var(--line);color:var(--ink-2);border-radius:999px;padding:2px 9px;font-size:.75rem}.skeleton{background-color:var(--glass);background-image:linear-gradient(100deg, transparent 30%, var(--shine) 50%, transparent 70%);background-size:200% 100%;animation:1.3s linear infinite shimmer}@keyframes shimmer{0%{background-position:150% 0}to{background-position:-50% 0}}.errors{color:#8a3b00;border-radius:var(--radius-sm);background:#fff1e6d9;flex-wrap:wrap;align-items:center;gap:8px 12px;margin:0 0 12px;padding:9px 12px;font-size:.86rem;display:flex}.errors>span{flex:220px}.btn-retry{color:#8a3b00;background:#fff;border:1px solid #8a3b004d;padding:6px 14px;font-size:.84rem}.empty{color:var(--ink-2);text-align:center;padding:40px 16px}.refreshing{color:var(--brand-2)}.refreshing:before{content:"";background:currentColor;border-radius:50%;width:7px;height:7px;margin:0 6px 1px 2px;animation:1s ease-in-out infinite blink;display:inline-block}@keyframes blink{50%{opacity:.25}}.detail{max-width:880px;margin:0 auto}.back{min-height:40px;color:var(--brand-2);cursor:pointer;transition:transform .2s var(--ease);background:0 0;border:0;align-items:center;margin-bottom:10px;padding:0;font-weight:600;display:inline-flex}.back:hover{transform:translate(-3px)}.detail-hero{border-radius:calc(var(--radius) + 4px);border:1px solid var(--glass-edge);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);box-shadow:var(--glass-hi), var(--shadow);flex-direction:column;gap:11px;padding:clamp(18px,3vw,28px);display:flex}.detail-hero.card-free{background-color:var(--free-tint);border-color:var(--free-line)}.detail-hero.card-paid{background-color:var(--paid-tint);border-color:var(--paid-line)}.detail-hero h1{letter-spacing:-.01em;font-size:clamp(1.3rem,1rem + 1.4vw,1.9rem)}.detail-journal,.detail-authors{color:var(--ink-2);margin:0}.abstract,.cite,.panel{border-radius:var(--radius);margin-top:16px;padding:clamp(16px,2.5vw,22px)}.abstract h2,.cite h2,.panel h2{margin-bottom:10px;font-size:1.05rem}.abstract p{max-width:75ch;line-height:1.7}.cite pre{white-space:pre-wrap;word-break:break-word;background:color-mix(in srgb, var(--surface) 55%, transparent);border-radius:var(--radius-sm);margin:0;padding:12px;font-family:inherit;font-size:.9rem}.tiles{grid-template-columns:repeat(auto-fit,minmax(min(100%,140px),1fr));gap:14px;display:grid}.tile{border-radius:var(--radius);transition:transform .3s var(--ease), box-shadow .3s var(--ease);animation:card-in .5s var(--ease) backwards;flex-direction:column;gap:4px;padding:18px;display:flex}.tile:nth-child(2){animation-delay:60ms}.tile:nth-child(3){animation-delay:.12s}.tile:nth-child(4){animation-delay:.18s}@media (hover:hover){.tile:hover{box-shadow:var(--glass-hi), var(--shadow-lift);transform:translateY(-3px)}}.tile-value{color:var(--brand);font-variant-numeric:tabular-nums;font-size:clamp(1.6rem,1.2rem + 1.4vw,2.2rem);font-weight:700}.tile-free .tile-value{color:var(--free)}.tile-label{color:var(--ink-2);font-size:.86rem}.panels{grid-template-columns:repeat(auto-fit,minmax(min(100%,420px),1fr));gap:0 16px;display:grid}.bars{gap:9px;margin:0;padding:0;list-style:none;display:grid}.bars li{grid-template-columns:minmax(90px,38%) 1fr 40px;align-items:center;gap:10px;font-size:.86rem;display:grid}.bar-label{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.bar-track{background:color-mix(in srgb, var(--ink-2) 14%, transparent);border-radius:999px;height:10px;overflow:hidden}.bar-fill{background:linear-gradient(90deg, var(--brand-2), var(--free));transform-origin:0;height:100%;animation:grow .9s var(--ease) backwards .15s;border-radius:999px;display:block}@keyframes grow{0%{transform:scaleX(0)}}.bar-value{text-align:right;font-variant-numeric:tabular-nums;color:var(--ink-2)}.settings{gap:18px;max-width:680px;display:grid}.settings label{gap:6px;font-weight:600;display:grid}.settings small{color:var(--ink-2);font-weight:400}.settings .btn{justify-self:start}.journal-list{grid-template-columns:repeat(auto-fill,minmax(min(100%,340px),1fr));gap:8px 24px;margin:0;padding:0;list-style:none;display:grid}.journal-list li{border-bottom:1px solid var(--line);flex-direction:column;padding-bottom:8px;font-size:.9rem;display:flex}.journal-list .muted{font-size:.8rem}.journal-group{color:var(--ink-2);margin:16px 0 8px;font-size:.95rem}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation:none!important}.card:not(.skeleton):hover,.tile:hover,.btn:hover{transform:none}}@supports not ((-webkit-backdrop-filter:blur(1px)) or (backdrop-filter:blur(1px))){.glass,.panel,.abstract,.cite,.tile,.settings,.card,.detail-hero{background-color:var(--surface)}.card-free,.detail-hero.card-free{background-color:color-mix(in srgb, var(--free) 10%, var(--surface))}.card-paid,.detail-hero.card-paid{background-color:color-mix(in srgb, var(--paid) 9%, var(--surface))}}@media (prefers-reduced-transparency:reduce){.backdrop{display:none}.glass,.panel,.abstract,.cite,.tile,.settings,.card,.detail-hero,.nav{-webkit-backdrop-filter:none;backdrop-filter:none}.glass,.panel,.abstract,.cite,.tile,.settings{background-color:var(--surface)}.card-free,.detail-hero.card-free{background-color:color-mix(in srgb, var(--free) 10%, var(--surface))}.card-paid,.detail-hero.card-paid{background-color:color-mix(in srgb, var(--paid) 9%, var(--surface))}}.install{border-radius:var(--radius);animation:drop-in .4s var(--ease);align-items:center;gap:14px;margin-bottom:18px;padding:12px 14px;display:flex}.install-logo{border-radius:11px;flex:none}.install-text{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.install-text strong{font-family:var(--font-display)}.install-text span{color:var(--ink-2);font-size:.9rem}.install-steps{gap:4px;margin:6px 0 0;padding-left:20px;font-size:.9rem;display:grid}.install-steps svg{vertical-align:-2px}.install-actions{flex:none;align-items:center;gap:4px;display:flex}.install-close{min-width:40px;min-height:40px;color:var(--ink-2);cursor:pointer;background:0 0;border:0;border-radius:10px;font-size:1.5rem;line-height:1}.install-close:hover{background:color-mix(in srgb, var(--ink-2) 12%, transparent)}.panel .install{box-shadow:none;margin:0}@media (width<=719px){.install{flex-wrap:wrap;align-items:flex-start;padding-right:44px;position:relative}.install-actions{width:100%}.install-actions:not(:has(.btn)){display:contents}.install-actions .btn{flex:1;justify-content:center}.install-close{position:absolute;top:4px;right:4px}}.fsearch{display:none}@media (width<=719px){.nav a.nav-search{display:none}.main{padding-bottom:calc(150px + env(safe-area-inset-bottom))}.fsearch{z-index:22;left:12px;right:12px;bottom:calc(var(--tabbar-h) + 10px + env(safe-area-inset-bottom));animation:fsearch-in .45s var(--spring) backwards .15s;transition:bottom .2s var(--ease);flex-direction:column;gap:8px;display:flex;position:fixed}.fsearch-bar{background:var(--glass-strong);height:52px;color:var(--ink-2);box-shadow:var(--glass-hi), var(--shadow-lift);transition:box-shadow .25s var(--ease), border-color .2s;border-radius:26px;align-items:center;gap:10px;padding:0 6px 0 16px;display:flex}.fsearch.is-focused .fsearch-bar{border-color:var(--brand-2);box-shadow:var(--glass-hi), var(--shadow-lift), 0 0 0 3px color-mix(in srgb, var(--brand-2) 22%, transparent)}.fsearch-bar input[type=search]{min-width:0;height:100%;min-height:0;box-shadow:none;color:var(--ink);background:0 0;border:0;flex:1;padding:0;font-size:16px}.fsearch-bar input[type=search]:focus{box-shadow:none}.fsearch-bar input::-webkit-search-cancel-button{display:none}.fsearch-clear{width:40px;height:40px;color:var(--ink-2);cursor:pointer;background:0 0;border:0;border-radius:20px;font-size:1.4rem}.fsearch-recent{background:var(--glass-strong);animation:drop-in .25s var(--ease);border-radius:18px;padding:10px 12px}.fsearch-recent .recent{margin:0}}@keyframes fsearch-in{0%{opacity:0;transform:translateY(16px)scale(.97)}}.recent{flex-wrap:wrap;align-items:center;gap:7px;margin:4px 0 8px;display:flex}.recent-label{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);margin-right:2px;font-size:.78rem;font-weight:700}.recent-chip{text-overflow:ellipsis;white-space:nowrap;max-width:100%;min-height:36px;overflow:hidden}.recent-kind{color:var(--brand-2);text-transform:uppercase;letter-spacing:.04em;margin-right:6px;font-size:.72rem;font-weight:700}.recent-clear{min-height:36px;color:var(--brand-2);cursor:pointer;background:0 0;border:0;margin-left:auto;padding:0 6px;font-weight:600}.study{font-family:var(--font-display);white-space:nowrap;border-radius:999px;padding:3px 9px;font-size:.72rem;font-weight:700}.study-high{color:#5b3fc4;background:#7c5cff29}.study-mid{color:var(--brand-2);background:color-mix(in srgb, var(--brand-2) 14%, transparent)}.study-low{color:var(--ink-2);background:color-mix(in srgb, var(--ink-2) 13%, transparent)}@media (prefers-color-scheme:dark){.study-high{color:#c4b5fd}}.card-top{flex-wrap:wrap;row-gap:6px}.sort-row{color:var(--ink-2);align-items:center;gap:10px;margin:-4px 0 12px;font-size:.86rem;display:flex}.sort-row .seg button{min-height:34px;padding:4px 12px;font-size:.86rem}.classics-section{margin-top:26px}.classics-section h2{margin-bottom:12px;font-size:1.15rem}.card-note{color:var(--ink);background:color-mix(in srgb, var(--surface) 55%, transparent);border-left:3px solid var(--free);border-radius:10px;margin:0;padding:8px 10px;font-size:.9rem;line-height:1.45}.card-missing{justify-content:center}.btn-read{font-weight:650}.reader{--reader-size:1.05rem;max-width:760px;margin:0 auto}.reader-bar{top:calc(var(--header-h) + 8px);z-index:12;border-radius:var(--radius);align-items:center;gap:8px;margin-bottom:18px;padding:8px;display:flex;position:sticky;overflow:hidden}.reader-back{width:40px;height:40px;color:var(--ink);transition:background .2s var(--ease), transform .2s var(--ease);border-radius:50%;flex:none;place-items:center;font-size:1.15rem;text-decoration:none;display:grid}.reader-back:hover{background:var(--line);transform:translate(-2px)}.reader-toc-btn{flex:auto;justify-content:flex-start}.reader-size{gap:6px;display:flex}.reader-size .btn{min-width:44px;padding-inline:10px;font-weight:700}.reader-progress{background:linear-gradient(90deg, var(--free), var(--brand-2));transform-origin:0;height:3px;transition:transform .12s linear;position:absolute;bottom:0;left:0;right:0}.reader-head{margin:4px 0 22px}.reader-head h1{letter-spacing:-.01em;margin:6px 0 10px;font-size:clamp(1.35rem,1.05rem + 1.3vw,2rem);line-height:1.25}.reader-authors{color:var(--ink-2);margin:0;font-size:.92rem}.reader-loading{gap:12px;padding:8px 0;display:grid}.skeleton-line{background:linear-gradient(90deg, var(--line), color-mix(in srgb, var(--line) 40%, transparent), var(--line));background-size:200% 100%;border-radius:7px;height:14px;animation:1.4s linear infinite shimmer;display:block}.reader-body{font-size:var(--reader-size);overflow-wrap:break-word;line-height:1.75}.reader-body p,.reader-body li{color:var(--ink)}.reader-body p{margin:0 0 1em}.reader-section{scroll-margin-top:calc(var(--header-h) + 80px)}.reader-body h2{border-top:1px solid var(--line);margin:1.8em 0 .6em;padding-top:.6em;font-size:1.32em;line-height:1.3}.reader-body>.reader-section:first-child>h2{border-top:0;margin-top:.4em;padding-top:0}.reader-body h3{margin:1.5em 0 .5em;font-size:1.12em}.reader-body h4,.reader-body h5{color:var(--ink-2);margin:1.3em 0 .4em;font-size:1em}.reader-body ul,.reader-body ol{margin:0 0 1em;padding-left:1.4em}.reader-body li>p{margin-bottom:.4em}.reader-body blockquote{border-left:3px solid var(--free-line);color:var(--ink-2);margin:0 0 1em;padding:.2em 1em}.reader-body a{color:var(--brand-2)}.reader-body code{font-size:.9em}.smallcaps{font-variant:small-caps}.reader-box{border-radius:var(--radius-sm);background:var(--free-tint);border:1px solid var(--free-line);margin:0 0 1.2em;padding:.9em 1.1em}.reader-box>strong{margin-bottom:.4em;display:block}.reader-formula{text-align:center;font-style:italic;overflow-x:auto}.xref{font:inherit;vertical-align:.1em;color:var(--brand-2);background:color-mix(in srgb, var(--brand-2) 10%, transparent);cursor:pointer;transition:background .15s var(--ease);border:0;border-radius:6px;margin:0 .05em;padding:.12em .3em;font-size:.82em;line-height:1}.xref:hover,.xref:focus-visible{background:color-mix(in srgb, var(--brand-2) 22%, transparent)}.xref-fig,.xref-table{vertical-align:baseline;font-size:.92em}.reader-fig,.reader-table{scroll-margin-top:calc(var(--header-h) + 80px);margin:1.4em 0}.reader-fig figcaption,.reader-table figcaption,.reader-table-foot{color:var(--ink-2);font-size:.86em;line-height:1.55}.reader-fig figcaption p,.reader-table figcaption p,.reader-table-foot p{color:var(--ink-2);margin:.3em 0 0}.reader-fig figcaption{margin-top:.6em}.reader-table figcaption{margin-bottom:.6em}.reader-img{border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;display:block;overflow:hidden}.reader-img img{width:100%;height:auto;display:block}.reader-img-missing{text-align:center;border:1px dashed var(--line);border-radius:var(--radius-sm);padding:1.2em;font-size:.86em}.reader-table-scroll{border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--surface);-webkit-overflow-scrolling:touch;overflow-x:auto}.reader-table-scroll table{border-collapse:collapse;min-width:100%;font-size:.8em;line-height:1.45}.reader-table-scroll th,.reader-table-scroll td{border-bottom:1px solid var(--line);text-align:left;vertical-align:top;padding:.5em .7em}.reader-table-scroll th{background:color-mix(in srgb, var(--brand-2) 8%, transparent);font-weight:650}.reader-table-scroll tr:last-child td{border-bottom:0}.reader-table-foot{margin-top:.5em}.reader-refs ol{padding-left:2em;font-size:.86em;line-height:1.55}.reader-refs li{scroll-margin-top:calc(var(--header-h) + 80px);color:var(--ink-2);margin-bottom:.6em}.ref-link{white-space:nowrap;font-weight:600}.reader-source{color:var(--ink-2);text-align:center;margin:2.5em 0 1em;font-size:.8rem}.reader-error{margin-top:8px}.sheet-backdrop{z-index:40;animation:fade-in .2s var(--ease);background:#08131d61;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}.sheet{width:min(640px,100%);max-height:min(75vh,640px);padding:14px 16px calc(16px + env(safe-area-inset-bottom));background:var(--glass-strong);animation:sheet-up .35s var(--spring);border-radius:22px 22px 0 0;flex-direction:column;display:flex}.sheet-head{justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;display:flex}.sheet-head h2{margin:0;font-size:1.1rem}.sheet-body{overscroll-behavior:contain;overflow-y:auto}@media (width>=720px){.sheet-backdrop{align-items:center}.sheet{border-radius:22px}}@keyframes sheet-up{0%{opacity:0;transform:translateY(40px)}}@keyframes fade-in{0%{opacity:0}}.reader-toc{margin:0;padding:0;list-style:none}.reader-toc ul{margin:0 0 4px;padding-left:14px;list-style:none}.reader-toc button{text-align:left;width:100%;font:inherit;color:var(--ink);cursor:pointer;background:0 0;border:0;border-radius:10px;padding:10px 12px;display:block}.reader-toc ul button{color:var(--ink-2);padding-block:7px;font-size:.92rem}.reader-toc button:hover,.reader-toc button:focus-visible{background:var(--line)}.reader-ref-text{margin:4px 0 8px;line-height:1.6}@media (prefers-reduced-motion:reduce){.sheet,.sheet-backdrop,.skeleton-line{animation:none}}.update-notice{z-index:30;left:50%;top:calc(var(--header-h) + 10px);white-space:nowrap;box-shadow:var(--shadow-lift);animation:notice-in .45s var(--spring);border-radius:999px;align-items:center;gap:12px;padding:6px 6px 6px 16px;font-size:.9rem;font-weight:600;display:flex;position:fixed;transform:translate(-50%)}.update-notice .btn{border-radius:999px;min-height:34px;padding:6px 14px}@keyframes notice-in{0%{opacity:0;transform:translate(-50%,-12px)}}@media (prefers-reduced-motion:reduce){.update-notice{animation:none}}.notice-close{color:var(--ink-2);cursor:pointer;background:0 0;border:0;padding:4px 8px 4px 0;font-size:1.2rem;line-height:1}.whats-new{margin-bottom:22px}.whats-new-head{justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px;display:flex}.whats-new-head h2{margin:0;font-size:1.15rem}.whats-new-all{margin-top:10px}.changelog{max-width:760px;margin:0 auto}.releases{gap:14px;display:grid}.release{border-radius:var(--radius);animation:rise .4s var(--ease) backwards;padding:16px 18px}.release-head{color:var(--ink-2);flex-wrap:wrap;align-items:center;gap:10px;font-size:.85rem;display:flex}.release-version{color:var(--brand);background:color-mix(in srgb, var(--brand-2) 12%, transparent);border-radius:999px;padding:2px 10px;font-weight:700}.release-current{color:var(--free-ink);background:var(--free-tint);border:1px solid var(--free-line);border-radius:999px;padding:1px 9px;font-weight:700}.release time{margin-left:auto}.release h2{margin:10px 0 6px;font-size:1.08rem}.release ul{margin:0;padding-left:1.2em;line-height:1.55}.release li{margin-bottom:4px}@keyframes rise{0%{opacity:0;transform:translateY(8px)}}@media (prefers-reduced-motion:reduce){.release{animation:none}}