/* NewBee / 2026 — shared visual and interaction system */
:root{
  color-scheme:light;
  --ink:#252830;--body-ink:#424752;--muted:#606673;--subtle:#606673;
  --paper:#f1f2f4;--surface:#e7e9ed;--card:#f7f8fa;--line:#d4d8df;--line-strong:#c9ced7;
  --accent:#005fc4;--blue:#0069d3;--blue-hover:#005cbb;--on-blue:#fff;
  --control:#dde1e7;--control-hover:#cfd5df;--feature:#e1e5eb;--header:rgba(241,242,244,.9);
  --success:#24613b;--success-bg:#dae9df;--selection:#c8ddf7;
  --logo-plate:transparent;
  --gold:var(--accent);--wash:var(--surface);--soft:var(--surface);--cream:var(--surface);--white:var(--card);--gold-soft:var(--line-strong);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);--gutter:clamp(22px,5.2vw,80px);--width:1200px;
}
:root[data-theme=dark]{
  color-scheme:dark;
  --logo-plate:#dfe2e7;
  --ink:#e2e5eb;--body-ink:#c6cbd4;--muted:#a7afbd;--subtle:#a7afbd;
  --paper:#181a1e;--surface:#22252b;--card:#2b2f36;--line:#3c424d;--line-strong:#464e5c;
  --accent:#91c0fa;--blue:#76aff5;--blue-hover:#97c3fa;--on-blue:#122039;
  --control:#363d48;--control-hover:#434d5c;--feature:#252a32;--header:rgba(24,26,30,.91);
  --success:#a9ddba;--success-bg:#243b2e;--selection:#334d70;
}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){
  color-scheme:dark;
  --logo-plate:#dfe2e7;
  --ink:#e2e5eb;--body-ink:#c6cbd4;--muted:#a7afbd;--subtle:#a7afbd;
  --paper:#181a1e;--surface:#22252b;--card:#2b2f36;--line:#3c424d;--line-strong:#464e5c;
  --accent:#91c0fa;--blue:#76aff5;--blue-hover:#97c3fa;--on-blue:#122039;
  --control:#363d48;--control-hover:#434d5c;--feature:#252a32;--header:rgba(24,26,30,.91);
  --success:#a9ddba;--success-bg:#243b2e;--selection:#334d70;
}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:92px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
button,input,select,textarea{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
img{height:auto}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{font-weight:600;line-height:1.16;letter-spacing:-.035em;text-wrap:balance}
p{overflow-wrap:break-word;text-wrap:pretty}
button:focus-visible,a:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
::selection{background:var(--selection);color:var(--ink)}
[hidden]{display:none!important}
.skip-link{position:fixed;top:-100px;left:20px;z-index:1000;padding:12px 20px;background:var(--card);border-radius:12px;color:var(--accent)}
.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:80;background:var(--header);border-bottom:1px solid var(--line);backdrop-filter:saturate(180%) blur(24px);-webkit-backdrop-filter:saturate(180%) blur(24px)}
.nav-shell{height:68px;max-width:1440px;padding:0 var(--gutter);margin:auto;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand-lockup{display:inline-flex;align-items:center;gap:12px;flex:none;color:var(--ink)}
.brand-lockup img{width:64px;height:26px;object-fit:contain}
.brand-lockup span{font-size:19px;font-weight:600;letter-spacing:-.035em;white-space:nowrap}
.desktop-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.desktop-nav a{font-size:13px;color:var(--body-ink);transition:color .2s}
.desktop-nav a:hover,.desktop-nav a[aria-current=page]{color:var(--ink)}
.nav-actions{display:flex;align-items:center;gap:20px}
.language-link{font-size:12px;color:var(--muted)}
.nav-join{font-size:12px;line-height:1;padding:10px 16px;background:var(--blue);color:var(--on-blue);border-radius:100px;white-space:nowrap;transition:background .2s,transform .3s var(--ease)}
.nav-join:hover{background:var(--blue-hover)}
.nav-join:active{transform:scale(.97)}
.menu-toggle{display:none;width:40px;height:40px;padding:10px;background:none;border:0;color:inherit;position:relative}
.menu-toggle span{display:block;position:absolute;left:10px;width:20px;height:1.5px;background:currentColor;transition:transform .28s var(--ease),top .28s var(--ease)}
.menu-toggle span:first-child{top:16px}.menu-toggle span:last-child{top:23px}
.menu-toggle[aria-expanded=true] span:first-child{top:20px;transform:rotate(45deg)}.menu-toggle[aria-expanded=true] span:last-child{top:20px;transform:rotate(-45deg)}
.mobile-nav{display:none}
.container{width:min(var(--width),calc(100% - var(--gutter)*2));margin-inline:auto}
.eyebrow,.kicker{font-size:13px;font-weight:600;letter-spacing:.025em;line-height:1.5;color:var(--muted)}
.text-link{color:var(--accent);text-underline-offset:4px}
.text-link:hover{text-decoration:underline}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:17px;color:var(--accent)}
.link-arrow:after{content:"›";font-size:25px;line-height:1;transition:transform .28s var(--ease)}
.link-arrow:hover:after{transform:translateX(3px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 23px;border:1px solid transparent;border-radius:100px;color:var(--on-blue);background:var(--blue);font-size:15px;font-weight:400;line-height:1.4;transition:background .2s,transform .3s var(--ease),box-shadow .3s}
.button:hover{background:var(--blue-hover)}
.button:active{transform:scale(.975)}
.button.secondary{background:transparent;color:var(--accent);border-color:var(--accent)}
.button.secondary:hover{background:var(--blue);color:var(--on-blue)}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:28px}
.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px}
.section-heading h2{font-size:clamp(32px,4.2vw,54px);max-width:760px}
.section-heading p{color:var(--muted);margin-top:16px;max-width:610px;font-size:19px}
.section-heading>.link-arrow{flex:none;margin-bottom:4px}
.section-pad{padding-block:112px}
.breadcrumb{font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;gap:8px;margin-bottom:30px}
.breadcrumb a:hover{color:var(--accent)}
.faq-list{max-width:900px}
.faq-item{border-bottom:1px solid var(--line);padding:0}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-item summary{position:relative;padding:25px 50px 25px 0;cursor:pointer;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary h3{font-size:19px;line-height:1.5;letter-spacing:-.02em}
.faq-item summary:after{content:"+";position:absolute;right:4px;top:20px;font-size:28px;font-weight:300;color:var(--muted);transition:transform .3s var(--ease)}
.faq-item[open] summary:after{transform:rotate(45deg)}
.faq-answer{padding:0 48px 27px 0;color:var(--muted);font-size:16px;line-height:1.85}
.faq-answer a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}
@supports (interpolate-size:allow-keywords){
  .faq-item{interpolate-size:allow-keywords}
  .faq-item::details-content{block-size:0;opacity:0;overflow:clip;transition:block-size .38s var(--ease),opacity .25s,content-visibility .38s allow-discrete}
  .faq-item[open]::details-content{block-size:auto;opacity:1}
}
.reveal-ready{opacity:0;transform:translateY(24px)}
.reveal-ready.is-visible{opacity:1;transform:none;transition:opacity .8s var(--ease),transform .8s var(--ease)}
.site-footer{background:var(--surface);color:var(--muted);font-size:12px;padding:52px var(--gutter) 24px}
.footer-shell{max-width:1200px;margin:auto}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px}
.footer-brand .brand-lockup{margin-bottom:20px}
.footer-brand p{font-size:13px;line-height:1.8;max-width:280px}
.footer-column strong{display:block;color:var(--ink);font-size:12px;margin:4px 0 12px}
.footer-column a{display:block;width:fit-content;margin:9px 0;line-height:1.6}
.site-footer a:hover{text-decoration:underline;text-underline-offset:3px}
.footer-bottom{padding-top:18px;border-top:1px solid var(--line-strong);display:flex;justify-content:space-between;gap:16px;font-size:11px}
.footer-bottom span:last-child{white-space:nowrap}
.reading-progress{position:fixed;top:68px;left:0;height:2px;width:100%;transform:scaleX(0);transform-origin:left;background:var(--blue);z-index:81;pointer-events:none}
.lightbox{width:min(1200px,94vw);max-height:94vh;border:0;border-radius:22px;padding:54px 24px 20px;background:var(--card);color:var(--ink);box-shadow:0 30px 90px #0003}
.lightbox::backdrop{background:rgba(0,0,0,.65);backdrop-filter:blur(12px)}
.lightbox img{max-height:74vh;max-width:100%;width:auto;margin:auto;object-fit:contain}
.lightbox p{text-align:center;font-size:13px;margin-top:14px;color:var(--muted)}
.dialog-close{position:absolute;right:16px;top:12px;border:0;background:var(--control);border-radius:50%;width:32px;height:32px;font-size:24px;line-height:1;color:var(--body-ink)}
.zoom-image{cursor:zoom-in}
@view-transition{navigation:auto}
::view-transition-old(root){animation:page-out .16s ease both}
::view-transition-new(root){animation:page-in .3s var(--ease) both}
@keyframes page-out{to{opacity:0}}
@keyframes page-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media(min-width:821px){.mobile-nav{display:none!important}}
@media(max-width:820px){
  .nav-shell{height:60px;gap:10px;padding-inline:20px}
  .desktop-nav,.nav-actions>.language-link{display:none}
  .brand-lockup img{width:54px;height:22px}.brand-lockup span{font-size:17px}.brand-lockup{gap:12px}
  .nav-actions{gap:8px}.menu-toggle{display:block}.nav-join{padding:9px 14px;font-size:12px}
  .mobile-nav:not([hidden]){display:grid;padding:18px 28px 28px;gap:4px;background:var(--card)}
  .mobile-nav a{padding:11px 0;font-size:24px;font-weight:600;letter-spacing:-.035em}
  .mobile-nav .mobile-secondary{font-size:15px;color:var(--muted);font-weight:400;padding-top:18px}
  .reading-progress{top:60px}
  .section-pad{padding-block:72px}
  .section-heading{align-items:flex-start;flex-direction:column;gap:18px;margin-bottom:30px}
  .section-heading p{font-size:17px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column;gap:8px}
  .faq-item summary{padding-block:22px}.faq-item summary h3{font-size:17px}.faq-answer{font-size:15px;padding-right:12px}
}

/* Appearance control and gentle, user-triggered color transitions. */
.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}
.theme-toggle{width:36px;height:36px;padding:8px;border:1px solid var(--line-strong);border-radius:50%;background:var(--surface);color:var(--ink);display:grid;place-items:center;flex:none;visibility:hidden;transition:background .2s,transform .2s}
[data-theme] .theme-toggle{visibility:visible}
.theme-toggle:hover{background:var(--control)}.theme-toggle:active{transform:scale(.94)}
.theme-toggle svg{width:18px;height:18px;grid-area:1/1;fill:none;stroke:currentColor;stroke-width:1.65;stroke-linecap:round;stroke-linejoin:round}
.theme-sun{display:none}[data-theme=dark] .theme-moon{display:none}[data-theme=dark] .theme-sun{display:block}
/* Preserve the original yellow/black artwork on a quiet dark-mode backing, with no image filter, outline or shadow. */
.brand-lockup img,.hero-card img[src="logo-192.webp"]{filter:none;mix-blend-mode:normal;background:var(--logo-plate);border-radius:7px;padding:4px 6px;box-sizing:content-box;margin-inline:-6px}
.theme-changing *,.theme-changing *::before,.theme-changing *::after{transition:background-color .28s ease,color .28s ease,border-color .28s ease,fill .28s ease,stroke .28s ease!important}
@media(max-width:360px){
 .nav-shell{padding-inline:16px;gap:6px}.nav-actions{gap:5px}.nav-join{padding:9px 10px}
 .brand-lockup span{font-size:16px}.menu-toggle{width:36px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal-ready{opacity:1;transform:none}
  ::view-transition-old(root),::view-transition-new(root){animation:none}
}