:root{--bg:#0c140f;--panel:#132019;--panel2:#18291f;--ink:#e7efe9;--mute:#9db2a4;--acc:#86c96f;--acc2:#2f7d34;--warn:#e3aa4f;--line:#25392c}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
a{color:var(--acc)}a:hover{color:#b5e6a2}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header{border-bottom:1px solid var(--line);background:#0a110d;position:sticky;top:0;z-index:5}
.bar{display:flex;align-items:center;gap:18px;min-height:58px;flex-wrap:wrap}
.logo{font-weight:800;color:var(--ink);text-decoration:none;letter-spacing:.3px;display:flex;align-items:center;gap:8px}
.logo i{display:inline-block;width:18px;height:22px;background:linear-gradient(135deg,#4f9a3a,#1d4d1f);clip-path:polygon(50% 0,100% 35%,80% 100%,20% 100%,0 35%)}
nav{display:flex;gap:4px 14px;flex-wrap:wrap;font-size:14px}nav a{color:var(--mute);text-decoration:none}nav a:hover,nav a.on{color:var(--c)}
main{padding:28px 0 60px}h1{font-size:clamp(28px,4vw,42px);line-height:1.15;margin:.2em 0 .4em}
h2{font-size:24px;margin:1.8em 0 .5em;color:#cfe8c5}h3{font-size:18px;margin:1.4em 0 .3em}
.lead{font-size:19px;color:var(--mute);max-width:760px}
.hero{padding:36px 0 10px}
.art{margin:0 0 20px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#050a07;box-shadow:0 12px 34px -14px var(--c,#4fd1c5)}
.art img{display:block;width:100%;height:auto;aspect-ratio:16/9}
@media(max-width:640px){.art{border-radius:10px;margin:4px 0 14px}}
.pgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px;margin-top:16px}
.post{display:flex;flex-direction:column;gap:6px;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--c);border-radius:12px;padding:16px 18px;text-decoration:none}
main a.post{color:var(--ink)}main a.post:hover{filter:none;border-color:var(--c)}.post time{font-size:13px;color:var(--c);font-weight:700}.post b{font-size:18px;line-height:1.3}.post span{color:var(--mute);font-size:14.5px}
.planned li{margin:6px 0}.sources{font-size:14px;color:var(--mute);overflow-wrap:anywhere}.sources li{margin:6px 0}
sup{line-height:0;font-size:11px}sup a{text-decoration:none;margin-left:1px}
.post{overflow:hidden}.post .thumb{display:block;width:calc(100% + 36px);max-width:none;height:auto;aspect-ratio:16/9;margin:-16px -18px 8px;border-bottom:2px solid var(--c);transition:filter .2s}.post:hover .thumb{filter:brightness(1.12) saturate(1.1)}
header nav a.home-link::before{background:linear-gradient(135deg,#86c96f,#4fd1c5,#63b3ed,#b794f4,#f687b3,#f6ad55,#f6e05e)}
@media(max-width:640px){.pgrid{grid-template-columns:1fr}}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:26px}
.card{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:18px 18px 16px;text-decoration:none;color:var(--ink);transition:border-color .15s,transform .15s}
.card:hover{border-color:var(--acc2);transform:translateY(-2px)}.card b{display:block;font-size:18px;margin:6px 0 4px}.card span{color:var(--mute);font-size:14.5px}
.card em{font-style:normal;font-size:26px}
.card{overflow:hidden}.card .thumb{display:block;width:calc(100% + 36px);max-width:none;height:auto;aspect-ratio:16/9;margin:-18px -18px 12px;border-bottom:2px solid var(--c);transition:filter .2s}.card:hover .thumb{filter:brightness(1.12) saturate(1.1)}
.card{display:flex;flex-direction:column}.card span{flex:1}
.card .go{flex:none;align-self:flex-start;margin-top:14px;padding:8px 16px;border-radius:99px;font-weight:700;font-size:14px;color:#0c140f;background:var(--c,#86c96f);box-shadow:0 2px 10px rgba(0,0,0,.3);transition:filter .15s,transform .15s}
.card:hover .go,.card:focus-visible .go{filter:brightness(1.15);transform:translateX(3px)}.card:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.cards .card:nth-child(8n+1){--c:#86c96f}.cards .card:nth-child(8n+2){--c:#4fd1c5}.cards .card:nth-child(8n+3){--c:#63b3ed}.cards .card:nth-child(8n+4){--c:#b794f4}
.cards .card:nth-child(8n+5){--c:#f687b3}.cards .card:nth-child(8n+6){--c:#f6ad55}.cards .card:nth-child(8n+7){--c:#f6e05e}.cards .card:nth-child(8n+8){--c:#c6f432}
.cards .card:hover{border-color:var(--c)}
.tag{display:inline-block;font-size:12px;padding:2px 8px;border-radius:99px;background:var(--panel2);color:var(--mute);margin-left:6px;vertical-align:middle}
table{width:100%;border-collapse:collapse;margin:12px 0 6px;font-size:14.5px}th,td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:#cfe8c5;background:var(--panel)}.tw{overflow-x:auto}
.note{background:var(--panel);border-left:4px solid var(--acc2);padding:12px 16px;border-radius:6px;margin:16px 0}
.warn{border-left-color:var(--warn)}.small{font-size:13.5px;color:var(--mute)}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:16px}
.box{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 16px}.box h3{margin-top:0}
.rows{margin:10px 0 4px}.rw{display:grid;grid-template-columns:200px 1fr;gap:10px;align-items:center;margin:8px 0;font-size:14px}
.trk{position:relative;height:30px;background:repeating-linear-gradient(90deg,transparent 0 calc(12.5% - 1px),var(--line) calc(12.5% - 1px) 12.5%);border-radius:4px}
.r{position:absolute;height:12px;border-radius:3px;font-size:11px}.r.w{top:2px;background:#9ccc65}.r.t{top:16px;background:#2f9a3a}
.r s{position:absolute;top:-2px;width:3px;height:16px;background:#fff;text-decoration:none}.r u{position:absolute;left:calc(100% + 6px);top:-2px;white-space:nowrap;text-decoration:none;color:var(--mute)}
.axis{display:flex;justify-content:space-between;margin-left:210px;font-size:11px;color:var(--mute)}
.key{font-size:13px;color:var(--mute)}.key i{display:inline-block;width:14px;height:10px;margin:0 5px 0 12px}
footer{position:relative;border-top:0;padding:34px 0 28px;margin-top:20px;color:var(--mute);font-size:13.5px;background:linear-gradient(180deg,#0a110d,#060b08)}
footer::before{content:"";position:absolute;left:0;right:0;top:0;height:2px;background:linear-gradient(90deg,#86c96f,#4fd1c5,#63b3ed,#b794f4,#f687b3,#f6ad55,#f6e05e,#c6f432,#fc8181,#7f9cf5);opacity:.85}
.foot-top{display:flex;align-items:center;gap:10px;margin:0 0 6px}.foot-top .logo{font-size:18px}
.foot-tag{margin:0 0 18px;color:var(--mute);font-size:14px}
.foot-meta{margin-top:20px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--mute)}
.toc{columns:2;font-size:14.5px}ul,ol{padding-left:22px}li{margin:4px 0}
/* per-page accent colors + phasing color effects */
body{--c:#86c96f}
@keyframes phase{to{background-position:200% 50%}}
h1,.brand,.home h2,.rainbow h2{width:fit-content;max-width:100%;background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;animation:phase 8s linear infinite}
h1{background-image:linear-gradient(90deg,var(--c),#f2fbef 25%,var(--c) 50%,#f2fbef 75%,var(--c))}
.home h1,.brand,.home h2,.home header::after,.rainbow h1,.rainbow h2,.rainbow header::after{background-image:linear-gradient(90deg,#86c96f,#4fd1c5,#63b3ed,#b794f4,#f687b3,#f6ad55,#f6e05e,#c6f432,#fc8181,#7f9cf5,#86c96f)}
h2{color:var(--c)}.box h3{color:var(--c)}th{color:var(--c)}li::marker{color:var(--c)}
.lead b,.lead strong{color:var(--c)}
main a{color:var(--c)}main a:hover{filter:brightness(1.2)}
.note{border-left-color:var(--c)}.note.warn{border-left-color:var(--warn)}
header{border-bottom-color:transparent}
header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,transparent,var(--c),transparent)}
.home header::after,.rainbow header::after{background-size:200% auto;animation:phase 8s linear infinite}
nav a.on{text-shadow:0 0 12px var(--c)}
@media(prefers-reduced-motion:reduce){h1,.brand,.home h2,.home header::after,.rainbow h2,.rainbow header::after{animation:none}}
.updated{font-size:13.5px;color:var(--mute);margin:-.2em 0 1.2em}.cite{display:block;margin-top:40px;background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--c);border-radius:8px;padding:14px 16px;font-size:14px;color:var(--mute)}.cite b{color:var(--c)}
/* ---- mobile best practices ---- */
html{scroll-padding-top:72px}
a,button{-webkit-tap-highlight-color:rgba(134,201,111,.2)}
.wrap{padding-left:max(20px,env(safe-area-inset-left));padding-right:max(20px,env(safe-area-inset-right))}
main{overflow-wrap:break-word}
.skip{position:absolute;left:-9999px;top:8px;z-index:20;background:var(--panel);color:var(--ink);padding:10px 14px;border-radius:8px}.skip:focus{left:12px}
header nav a{padding:6px 2px}
.menu-btn{display:none}
.cite{overflow-wrap:anywhere}
.foot-nav{display:flex;flex-wrap:wrap;gap:10px;margin:0}
.foot-nav a{display:inline-flex;align-items:center;gap:8px;color:var(--c);text-decoration:none;font-weight:600;font-size:14px;padding:7px 14px;background:var(--panel);border:1px solid var(--line);border-radius:99px;transition:border-color .15s,box-shadow .15s,transform .15s}
.foot-nav a::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--c);box-shadow:0 0 8px var(--c)}
.foot-nav a:hover,.foot-nav a:focus-visible{border-color:var(--c);box-shadow:0 0 14px -3px var(--c);transform:translateY(-1px)}
@media(hover:none){.card:hover,.card:hover .go{transform:none}}
@media(max-width:860px){
.bar{flex-wrap:nowrap;justify-content:space-between;min-height:56px;gap:12px}
.menu-btn{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;flex:none;width:44px;height:44px;padding:0 11px;background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer}
.menu-btn span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s,opacity .2s}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
header nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;gap:0;background:#0a110d;border-bottom:1px solid var(--line);padding:4px max(20px,env(safe-area-inset-right)) 14px max(20px,env(safe-area-inset-left));max-height:calc(100vh - 56px);overflow-y:auto;overscroll-behavior:contain;box-shadow:0 18px 40px rgba(0,0,0,.55)}
header nav.open{display:flex}
header nav a{display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line)}
header nav a:last-child{border-bottom:0}
header nav a::before{content:"";flex:none;width:9px;height:9px;border-radius:50%;background:var(--c);margin-right:12px;box-shadow:0 0 8px var(--c)}
}
@media(max-width:640px){
main{padding:18px 0 48px}
.wrap{padding-left:max(16px,env(safe-area-inset-left));padding-right:max(16px,env(safe-area-inset-right))}
.hero{padding:16px 0 4px}.lead{font-size:17px}h2{font-size:21px}
.cards{grid-template-columns:1fr;gap:12px;margin-top:20px}
.card .go{display:inline-flex;align-items:center;min-height:44px;padding:0 18px}
th,td{padding:8px}table{font-size:14px}
.tw{margin:12px -16px 6px;padding:0 16px}
.foot-nav a{min-height:44px;padding:0 14px}
}
@media(max-width:640px){.rw{grid-template-columns:1fr}.axis{margin-left:0}.toc{columns:1}}