/* Loop Pool — X-style palette, Vine green is the only accent */
:root{
  --bg:#000; --s1:#16181c; --s2:#202327; --line:#2f3336; --tx:#e7e9ea; --tx2:#71767b;
  --g:#00bf8f; --g-d:#00a87e; --g-soft:rgba(0,191,143,.12); --scrim:rgba(91,112,131,.4); --hover:rgba(231,233,234,.06);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --col:600px; color-scheme:dark;
}
@media (prefers-color-scheme:light){:root{--bg:#fff;--s1:#f7f9f9;--s2:#eff3f4;--line:#eff3f4;--tx:#0f1419;--tx2:#536471;--scrim:rgba(0,0,0,.4);--hover:rgba(15,20,25,.04);color-scheme:light}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;overflow-x:clip}
body{margin:0;background:var(--bg);color:var(--tx);font-family:var(--font);font-size:15px;line-height:1.35;overflow-x:clip;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img,video{display:block;max-width:100%}
button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--g);outline-offset:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;z-index:99;background:var(--g);color:#000;padding:6px 10px;border-radius:999px}
code{font-size:.85em;background:var(--s2);padding:1px 5px;border-radius:4px}
.muted{color:var(--tx2)}
h1,h2,h3{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.2}

/* shell: X-like 3 columns */
.shell{display:grid;grid-template-columns:1fr minmax(0,var(--col)) 1fr;min-height:100vh}
.col{grid-column:2;border-left:1px solid var(--line);border-right:1px solid var(--line);min-width:0}
.rail{display:none}
@media (min-width:1100px){
  .shell{grid-template-columns:minmax(220px,1fr) var(--col) minmax(300px,1fr)}
  .rail{display:block;position:sticky;top:0;height:100vh;padding:12px 20px;overflow:auto}
  .rail-l{justify-self:end;width:260px}
  .rail-r{justify-self:start;width:350px}
  .topbar .brand{display:none}
}
@media (max-width:600px){.col{border:0}}
.railnav{display:flex;flex-direction:column;margin:12px 0 16px}
.railnav a{padding:12px 14px;border-radius:999px;font-size:19px;font-weight:500;width:max-content}
.railnav a:hover{background:var(--hover)}
.railnav a[aria-current]{font-weight:800}
.railnav a[aria-current]::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--g);margin-right:10px;vertical-align:middle}
.btn-wide{display:block;text-align:center;width:100%;padding:14px;font-size:16px}
.box{border:1px solid var(--line);border-radius:16px;padding:12px 16px;margin-bottom:16px;background:var(--bg)}
.box h3{font-size:20px;margin-bottom:8px}
.box-vine{border-color:var(--g)}
.box-vine h3{font-size:17px}
.statrow{display:flex;justify-content:space-between;padding:8px 0;border-top:1px solid var(--line)}
.statrow span{color:var(--tx2)}
.rail-fine{color:var(--tx2);font-size:13px;padding:0 4px}

/* brand */
.brand{display:flex;align-items:center;gap:8px;font-weight:800;font-size:17px;letter-spacing:-.01em;flex:none}
.brand-rail{padding:8px 12px;font-size:20px}
.loopmark{width:26px;height:26px}.loopmark circle{fill:none;stroke:var(--g);stroke-width:4}.loopmark path{fill:var(--g)}

/* top bar + tabs */
.topbar{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding-top:env(safe-area-inset-top)}
.topbar-row{display:flex;align-items:center;gap:12px;padding:6px 12px}
.searchbar{flex:1;min-width:0}
.searchbar input{width:100%;height:38px;border:1px solid transparent;background:var(--s2);color:var(--tx);border-radius:999px;padding:0 16px;font:inherit;font-size:15px;outline:none;-webkit-appearance:none}
.searchbar input::placeholder{color:var(--tx2)}
.searchbar input:focus{background:var(--bg);border-color:var(--g)}
.tabs{display:flex;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs a{flex:1 0 auto;text-align:center;padding:0 14px;height:48px;display:flex;align-items:center;justify-content:center;color:var(--tx2);font-weight:500;position:relative}
.tabs a:hover{background:var(--hover)}
.tabs a[aria-current]{color:var(--tx);font-weight:700}
.tabs a[aria-current]::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:56px;max-width:80%;height:4px;border-radius:999px;background:var(--g)}

/* masthead: compact, symmetric title card */
.mast{text-align:center;padding:20px 16px 16px;border-bottom:1px solid var(--line)}
.kicker,.num{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.24em;text-transform:uppercase;color:var(--tx2)}
.mast .kicker{padding:3px 12px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.mast h1{font-size:34px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;margin:10px 0 4px;padding-left:.14em}
.mast-sub{color:var(--tx2);margin:0}
.mast-stats{display:flex;justify-content:center;gap:16px;margin:12px 0 0;color:var(--tx2);font-size:14px;flex-wrap:wrap}
.mast-stats b{color:var(--tx);font-weight:700}
.sharebar{display:flex;gap:8px;justify-content:center;margin-top:12px;flex-wrap:wrap}

/* chapters: thin rules for Fallingwater planes, centered heads for symmetry */
.chapter,.listsec{border-bottom:1px solid var(--line)}
.chapter-head{text-align:center;padding:16px 16px 12px}
.chapter-head .num{padding:0 10px;position:relative}
.chapter-head .num::before,.chapter-head .num::after{content:"";position:absolute;top:50%;width:28px;height:1px;background:var(--line)}
.chapter-head .num::before{right:100%}.chapter-head .num::after{left:100%}
.chapter-head h2{font-size:20px;margin-top:4px}
.chapter-head p{color:var(--tx2);margin:4px auto 0;max-width:460px;font-size:14px}
.subhead{font-size:13px;font-weight:700;color:var(--tx2);text-transform:uppercase;letter-spacing:.14em;text-align:center;padding:14px 16px 8px;margin:0;border-top:1px solid var(--line)}
.rowlink{display:block;padding:14px 16px;color:var(--g);border-top:1px solid var(--line)}
.rowlink:hover{background:var(--hover)}

/* founders: framed stages */
.dioramas{display:grid;grid-template-columns:1fr 1fr 1fr;gap:2px;padding:0 0 2px}
.diorama{display:flex;flex-direction:column;background:var(--bg);min-width:0}
.diorama .stage{position:relative;aspect-ratio:1;background:var(--s1);overflow:hidden}
.diorama .stage::after{content:"";position:absolute;inset:8px;border:1px solid rgba(255,255,255,.35);pointer-events:none;z-index:2}
.diorama.ghost .stage{display:grid;place-items:center;color:var(--tx2);font-size:12px;letter-spacing:.2em;text-transform:uppercase}
.diorama .stage img,.diorama .stage video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.diorama .stage video{z-index:1}
.dio-cap{padding:8px 10px 12px;text-align:center;display:flex;flex-direction:column;gap:2px}
.dio-cap b{font-size:15px}
.dio-cap span{color:var(--tx2);font-size:12px}
.diorama:hover .dio-cap b{color:var(--g)}

/* media grid: square tiles, 2px gaps */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:2px}
@media (max-width:500px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.tile{position:relative;margin:0;aspect-ratio:1;background:var(--s1);cursor:pointer;overflow:hidden;min-width:0;content-visibility:auto;contain-intrinsic-size:auto 200px;-webkit-tap-highlight-color:transparent;touch-action:manipulation}
.tile .frame{position:absolute;inset:0}
.tile .frame .ph{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:12px;font-size:12px;color:var(--tx2)}
.tile video,.tile img.poster{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.tile img.poster{transition:opacity .25s}
.tile.playing img.poster{opacity:0}
.tile .six{position:absolute;right:6px;top:6px;z-index:2;background:rgba(0,0,0,.6);color:#fff;font-size:11px;font-weight:700;padding:1px 6px;border-radius:4px}
.tile .sweep{position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--g);z-index:3}
.tile.playing .sweep{animation:sweep 6s linear infinite}
@keyframes sweep{to{width:100%}}
.tile figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:22px 8px 7px;background:linear-gradient(transparent,rgba(0,0,0,.78));color:#fff}
.tile .t{font-size:13px;font-weight:700;line-height:1.25;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;word-break:break-word}
.tile .m{font-size:11px;opacity:.8;margin-top:2px;display:flex;justify-content:space-between;gap:6px}
.tile .m span:first-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tile .m span:last-child{white-space:nowrap}
@media (hover:hover){.tile:hover::after{content:"";position:absolute;inset:0;box-shadow:inset 0 0 0 2px var(--g);z-index:4;pointer-events:none}}

/* buttons, chips */
.btn,.chip{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 16px;border-radius:999px;font-size:14px;font-weight:700;border:1px solid transparent;background:none;color:var(--tx);touch-action:manipulation;white-space:nowrap}
.btn-green{background:var(--g);color:#000}
.btn-green:hover{background:var(--g-d)}
.btn-outline{border-color:var(--line);color:var(--tx)}
.btn-outline:hover{background:var(--hover)}
.btn-ghost{color:var(--tx2)}
.btn-ghost:hover{background:var(--hover);color:var(--tx)}
.btn:disabled{opacity:.4;cursor:default}
.chip{border-color:var(--line);font-weight:500;min-height:32px;padding:0 14px}
.chip:hover{background:var(--hover)}
.chip[aria-pressed=true]{background:var(--g-soft);border-color:var(--g);color:var(--g);font-weight:700}
.controls{display:flex;gap:6px;padding:10px 12px;overflow-x:auto;scrollbar-width:none;border-bottom:1px solid var(--line)}
.controls::-webkit-scrollbar{display:none}
.filterbox{flex:1 0 160px;height:32px;border:1px solid var(--line);background:var(--bg);color:var(--tx);border-radius:999px;padding:0 14px;font:inherit;font-size:14px;outline:none}
.filterbox:focus{border-color:var(--g)}
.loadmore{display:flex;margin:12px auto}
.sentinel{height:1px}

/* page header (profile style) */
.phead{border-bottom:1px solid var(--line)}
.phead-bar{display:flex;align-items:center;gap:16px;padding:6px 12px;min-height:53px}
.phead-t{min-width:0}
.phead h1{font-size:20px;font-weight:800;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.phead .meta{margin:1px 0 0;color:var(--tx2);font-size:13px}
.phead-body{display:flex;align-items:center;gap:12px;padding:4px 16px 14px}
.phead-info{display:flex;flex-direction:column;gap:6px;align-items:flex-start;min-width:0}
.phead-info .sharebar{margin:0;justify-content:flex-start}
.iconbtn{width:36px;height:36px;border-radius:50%;display:grid;place-items:center;font-size:20px;background:none;border:0;flex:none}
.iconbtn:hover{background:var(--hover)}

/* avatars + creators list */
.av{width:40px;height:40px;border-radius:50%;flex:none;background:var(--s2) center/cover;display:grid;place-items:center;font-weight:800;color:var(--g)}
.av-lg{width:64px;height:64px;font-size:24px;border:2px solid var(--bg);box-shadow:0 0 0 1px var(--line)}
.letters{display:flex;gap:2px;overflow-x:auto;padding:4px 12px 8px;scrollbar-width:none}
.letters::-webkit-scrollbar{display:none}
.letters a{flex:none;width:30px;height:30px;display:grid;place-items:center;border-radius:50%;font-weight:700;font-size:13px}
.letters a:hover{background:var(--hover);color:var(--g)}
.letters a.off{opacity:.25;pointer-events:none}
.dir-group h3{font-size:13px;color:var(--g);padding:10px 16px 4px;border-top:1px solid var(--line);letter-spacing:.1em}
.dir-list{display:flex;flex-direction:column}
.dir-item{display:flex;align-items:center;gap:12px;padding:10px 16px}
.dir-item:hover{background:var(--hover)}
.dir-who{flex:1;min-width:0;display:flex;flex-direction:column}
.dir-who b{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.dir-who small,.dir-n small{color:var(--tx2);font-size:13px}
.dir-n{text-align:right;font-size:13px;font-weight:700;white-space:nowrap}

/* timeline */
.terraces{display:flex;flex-direction:column;padding-bottom:6px}
.terrace{display:grid;grid-template-columns:52px 1fr 64px;align-items:center;gap:12px;padding:10px 16px}
.terrace:hover{background:var(--hover)}
.terrace .yr{font-weight:800}
.terrace .track{height:8px;border-radius:999px;background:var(--s2);overflow:hidden}
.terrace .bar{display:block;height:100%;background:var(--g);border-radius:999px}
.terrace .n{text-align:right;color:var(--tx2);font-size:13px}

/* lookup */
.lookup{display:flex;gap:8px;padding:0 16px}
.lookup input{flex:1;min-width:0;height:40px;border:1px solid var(--line);background:var(--bg);color:var(--tx);border-radius:999px;padding:0 16px;font:inherit;outline:none}
.lookup input:focus{border-color:var(--g)}
.note{color:var(--tx2);font-size:13px;text-align:center;margin:8px 16px 16px}
.empty{text-align:center;padding:32px 16px;color:var(--tx2)}

/* shout-out */
.shout{text-align:center;padding:20px 16px;border-bottom:1px solid var(--line)}
.shout h2{font-size:20px;margin:6px 0}
.shout .g{color:var(--g)}
.shout p{color:var(--tx2);margin:0 auto;max-width:440px;font-size:14px}
.shout .loops{display:flex;justify-content:center;gap:8px;margin-top:12px}
.shout .loops i{width:10px;height:10px;border:2px solid var(--g);border-radius:50%;animation:pulse 6s ease-in-out infinite}
.shout .loops i:nth-child(2){animation-delay:1s}.shout .loops i:nth-child(3){animation-delay:2s}.shout .loops i:nth-child(4){animation-delay:3s}.shout .loops i:nth-child(5){animation-delay:4s}.shout .loops i:nth-child(6){animation-delay:5s}
@keyframes pulse{0%,100%{background:transparent}8%,20%{background:var(--g)}}

/* footer */
.foot{padding:16px 16px calc(20px + env(safe-area-inset-bottom));color:var(--tx2);font-size:13px}
.foot p{margin:0 0 8px}
.foot strong{color:var(--tx)}
.foot-fine{opacity:.8}

/* player: post card */
.player{position:fixed;inset:0;z-index:50;display:grid;place-items:center;padding:max(16px,env(safe-area-inset-top)) 16px max(16px,env(safe-area-inset-bottom))}
.player[hidden]{display:none}
.player-scrim{position:absolute;inset:0;background:var(--scrim)}
.player-frame{position:relative;width:min(600px,100%);max-height:100%;overflow:auto;background:var(--bg);border-radius:16px;box-shadow:0 0 0 1px var(--line),0 8px 30px rgba(0,0,0,.5)}
.post-bar{display:flex;align-items:center;gap:14px;padding:4px 12px;min-height:53px;position:sticky;top:0;background:color-mix(in srgb,var(--bg) 85%,transparent);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:4}
.post-bar-t{font-size:20px;font-weight:800}
.post-eyebrow{margin-left:auto;font-size:12px;font-weight:700;color:var(--g);background:var(--g-soft);padding:3px 10px;border-radius:999px}
.post-eyebrow:empty{display:none}
.post-author{display:flex;align-items:center;gap:10px;padding:4px 16px}
.pav{width:40px;height:40px;border-radius:50%;flex:none;background:var(--s2) center/cover;display:grid;place-items:center;font-weight:800;color:var(--g)}
.post-who{display:flex;flex-direction:column;min-width:0}
.pname{font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pname[href]:hover{text-decoration:underline}
.phandle{color:var(--tx2);font-size:14px}
.post-text{font-size:17px;font-weight:400;line-height:1.35;padding:8px 16px 10px;word-break:break-word;letter-spacing:0}
.proscenium{position:relative;margin:0 16px;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#000;aspect-ratio:1}
.proscenium video{width:100%;height:100%;object-fit:contain;background:#000}
.ring{position:absolute;right:10px;top:10px;width:28px;height:28px;transform:rotate(-90deg);pointer-events:none}
.ring circle{fill:rgba(0,0,0,.45);stroke:rgba(255,255,255,.25);stroke-width:4}
.ring #ringFg{fill:none;stroke:var(--g);stroke-dasharray:119.4;stroke-dashoffset:119.4}
.sound{position:absolute;left:10px;top:10px;z-index:3;background:rgba(0,0,0,.7);color:#fff;border:0;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700}
.post-meta{margin:0 16px;padding:12px 0;border-bottom:1px solid var(--line);color:var(--tx2);font-size:14px}
.post-meta b{color:var(--tx)}
.post-meta .dot{margin:0 6px}
.post-actions{display:flex;justify-content:space-between;gap:4px;padding:8px 10px calc(10px + env(safe-area-inset-bottom));flex-wrap:wrap}
.post-actions .btn{padding:0 12px}
@media (max-width:600px){.player{padding:0}.player-frame{width:100%;height:100%;max-height:none;border-radius:0;box-shadow:none;padding-top:env(safe-area-inset-top)}.proscenium{margin:0;border-radius:0;border-left:0;border-right:0}.post-meta{margin:0 16px}}

.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translate(-50%,30px);opacity:0;background:var(--g);color:#000;font-weight:700;padding:10px 18px;border-radius:999px;font-size:14px;transition:.2s;z-index:60;pointer-events:none;max-width:90vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.toast.on{opacity:1;transform:translate(-50%,0)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
@media (max-width:500px){
  .tabs a{flex:1 1 auto;padding:0 8px;font-size:14px}
  .post-actions{flex-wrap:nowrap;justify-content:space-between}
  .post-actions .lbl{display:none}
  .post-actions .btn{padding:0 10px}
  .dio-cap span:last-child{display:none}
  .diorama.ghost .dio-cap span:last-child{display:block}
}