/* Kalopsia operating-system explainer. All colours follow the site's theme. */
.ke-system{container:kalopsia-system / inline-size;position:relative;isolation:isolate;box-sizing:border-box;min-width:0;width:100%;padding:20px;border:1px solid var(--line);border-radius:24px;background:var(--surface);color:var(--text);box-shadow:0 22px 64px rgb(0 0 0 / .06)}
.ke-system *{box-sizing:border-box}
.ke-system [hidden]{display:none!important}
.ke-heading{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}
.ke-eyebrow{margin:0 0 5px!important;color:var(--muted);font-size:11px!important;font-weight:600;line-height:1.5;letter-spacing:.09em;text-transform:uppercase}
.ke-heading h2{max-width:270px;margin:0!important;color:var(--text);font-size:16px!important;font-weight:550;line-height:1.45;letter-spacing:-.025em}
.ke-play{flex:0 0 122px;display:inline-flex;align-items:center;justify-content:center;gap:5px;width:122px;min-height:44px;margin-top:1px;padding:6px 9px;border:1px solid var(--line-strong);border-radius:8px;background:var(--surface-raised);color:var(--text);font:inherit;font-size:12px;line-height:1.3;cursor:pointer}
.ke-play svg{flex:0 0 14px;width:14px;height:14px;fill:currentColor}
.ke-pause-icon,.ke-system.is-playing .ke-play-icon{display:none}
.ke-system.is-playing .ke-pause-icon{display:block}
.ke-play:hover{border-color:var(--link)}
.ke-system a:focus-visible,.ke-system button:focus-visible{outline:2px solid var(--link);outline-offset:4px}
.ke-diagram{position:relative;height:300px;margin:16px 0 14px}
.ke-connections{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}
.ke-track{stroke:var(--line-strong);stroke-width:1.25;vector-effect:non-scaling-stroke;transition:stroke .2s}
.ke-path.is-active .ke-track{stroke:var(--purple);opacity:.55}
.ke-pulse{visibility:hidden;stroke:var(--purple);stroke-width:3;stroke-linecap:round;stroke-dasharray:5 95;stroke-dashoffset:100;vector-effect:non-scaling-stroke}
.ke-system.is-playing .ke-path.is-active .ke-pulse{visibility:visible;animation:ke-travel 1.75s linear infinite}
.ke-node{position:absolute;z-index:2;display:flex;align-items:flex-start;gap:8px;width:42%;height:90px;min-width:0;padding:10px;border:1px solid var(--line);border-radius:12px;background:var(--surface-raised);transition:border-color .2s,background .2s}
.ke-node-0{left:0;top:0}.ke-node-1{right:0;top:0}.ke-node-2{left:0;bottom:0}.ke-node-3{right:0;bottom:0}
.ke-node.is-active{border-color:var(--purple);background:color-mix(in srgb,var(--purple) 7%,var(--surface-raised))}
.ke-node-icon{flex:0 0 23px;width:23px;height:23px;color:var(--muted)}
.ke-node.is-active .ke-node-icon{color:var(--link)}
.ke-node-copy{min-width:0}
.ke-node h3{margin:0 0 3px!important;font-size:14px!important;line-height:1.35;font-weight:600;letter-spacing:-.02em}
.ke-node h3 a{color:var(--text);text-decoration:none;text-underline-offset:3px}
.ke-node h3 a:hover{color:var(--link);text-decoration:underline}
.ke-node p{margin:0!important;color:var(--muted);font-size:12px!important;line-height:1.4}
.ke-core{position:absolute;z-index:3;left:33.2%;top:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;width:33.6%;height:108px;padding:8px 5px;transform:translateY(-50%);border:1px solid var(--line-strong);border-radius:16px;background:var(--surface);text-align:center}
.ke-core img{display:block;flex:0 0 32px;width:32px;height:32px}
.ke-core strong{max-width:156px;color:var(--text);font-size:14px;font-weight:550;line-height:1.35;letter-spacing:-.025em}
.ke-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;margin:0 0 14px;padding:4px;border:1px solid var(--line);border-radius:10px;background:var(--bg)}
.ke-step{display:flex;align-items:center;justify-content:center;min-width:0;min-height:38px;padding:7px 4px;border:1px solid transparent;border-radius:7px;background:transparent;color:var(--muted);font:inherit;font-size:12px;line-height:1.4;cursor:pointer;transition:background .2s,color .2s}
.ke-step:hover{color:var(--text)}
.ke-step[aria-pressed=true]{border-color:var(--line);background:var(--surface-raised);color:var(--text)}
.ke-story{min-height:135px;padding-top:14px;border-top:1px solid var(--line)}
.ke-story-panel{position:relative}
.ke-story h3{margin:0 0 6px!important;color:var(--text);font-size:14px!important;font-weight:550;line-height:1.45;letter-spacing:-.015em}
.ke-story-body{max-width:440px;margin:0 0 8px!important;color:var(--muted);font-size:14px!important;line-height:1.6}
.ke-learn{display:inline-flex;align-items:center;gap:9px;min-height:30px;color:var(--link);font-size:13px;font-weight:500;line-height:1.5;text-decoration:none;text-underline-offset:4px}
.ke-learn:hover{text-decoration:underline}
.ke-announcement{position:absolute!important;clip:rect(0 0 0 0);clip-path:inset(50%);width:1px;height:1px;overflow:hidden;white-space:nowrap}
@keyframes ke-travel{from{stroke-dashoffset:100}to{stroke-dashoffset:0}}
@keyframes ke-arrive{0%,100%{opacity:.25}50%{opacity:1}}
@container kalopsia-system (max-width:430px){
 .ke-heading{gap:10px}.ke-heading h2{font-size:15px!important}.ke-play{max-width:122px;font-size:12px;padding:6px}
 .ke-diagram{display:flex;flex-direction:column;gap:8px;height:auto;margin-top:16px;margin-bottom:14px}
 .ke-connections{display:none}.ke-diagram::before{content:"";position:absolute;left:12px;top:55px;bottom:32px;width:1px;background:var(--line-strong)}
 .ke-core{order:-1;position:relative;left:auto;top:auto;flex-direction:row;justify-content:flex-start;gap:12px;width:100%;height:auto;min-height:64px;padding:10px 12px;transform:none;border-radius:12px;text-align:left}
 .ke-core strong{max-width:230px;font-size:14px}.ke-core img{width:32px;height:32px;flex-basis:32px}
 .ke-node{position:relative;inset:auto!important;gap:8px;width:calc(100% - 28px);height:auto;min-height:64px;margin-left:28px;padding:10px 12px}
 .ke-node::before{content:"";position:absolute;left:-17px;top:50%;width:16px;height:1px;background:var(--line-strong)}
 .ke-node::after{content:"";position:absolute;left:-19px;top:calc(50% - 3px);width:6px;height:6px;border-radius:50%;background:var(--line-strong)}
 .ke-node.is-active::before,.ke-node.is-active::after{background:var(--purple)}
 .ke-system.is-playing .ke-node.is-active::after{animation:ke-arrive 1.75s ease-in-out infinite}
 .ke-node h3{font-size:14px!important}.ke-node p{font-size:12px!important}.ke-node-icon{width:23px;height:23px;flex-basis:23px}
 .ke-steps{gap:2px;padding:3px}.ke-step{font-size:12px;min-height:40px}
 .ke-story{min-height:174px}.ke-story h3{font-size:14px!important}.ke-story-body{font-size:14px!important}
}
@container kalopsia-system (max-width:320px){.ke-steps{grid-template-columns:repeat(2,minmax(0,1fr))}.ke-step{min-height:40px;font-size:12px}.ke-play{flex-basis:44px;width:44px;padding:6px}.ke-play [data-ke-play-label]{display:none}}
@media(prefers-reduced-motion:reduce){.ke-system *{animation:none!important;transition:none!important}.ke-system.is-playing .ke-path.is-active .ke-pulse{visibility:hidden}}