/* Ruang Trio — stylesheet */
:root{
  --heather:#4a3557;--heather-2:#6b4c7a;--moss:#4f6f52;--moss-l:#7d9a6a;--parch:#f7f1e3;--parch-2:#ede3cc;--gold:#c9a227;--gold-d:#9e7d14;
  --ink:#2a2230;--muted:#6b6070;--line:#e2d7bf;--white:#fffdf8;
  --serif:"Spectral",Georgia,serif;--sans:"Red Hat Text",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--white);line-height:1.72;font-size:16.5px}
a{color:var(--heather-2)}
a:hover{color:var(--moss)}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.18;margin:0 0 .5em}
h1{font-size:clamp(2rem,4.4vw,3.3rem)}
h1 em{font-style:italic;color:var(--gold)}
h2{font-size:clamp(1.55rem,2.8vw,2.2rem)}
h3{font-size:1.18rem}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
.narrow{max-width:880px}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:#fff;padding:8px 12px;z-index:99}
.small{font-size:.86rem;color:var(--muted)}
.eyebrow{font-weight:700;font-size:.78rem;letter-spacing:.14em;text-transform:uppercase;color:var(--moss);margin:0 0 .4em}
.cat{font-weight:700;font-size:.8rem;color:var(--heather-2);margin:0 0 .4em}
.cat.light{color:var(--gold)}
.sub{color:var(--muted);max-width:760px}
.btn{display:inline-block;background:var(--heather);color:var(--parch);font-weight:700;padding:.8em 1.5em;border-radius:6px;text-decoration:none;border:2px solid var(--heather);cursor:pointer;font:inherit;font-weight:700;transition:.2s}
.btn:hover{background:var(--moss);border-color:var(--moss);color:#fff}
.btn.ghost{background:transparent;color:var(--parch);border-color:var(--parch)}
.btn.ghost:hover{background:var(--parch);color:var(--heather)}
.btn.light{background:var(--parch);color:var(--heather);border-color:var(--parch)}
.tartan{height:12px;background:
  repeating-linear-gradient(90deg,rgba(201,162,39,.55) 0 4px,transparent 4px 24px),
  repeating-linear-gradient(0deg,rgba(79,111,82,.7) 0 4px,transparent 4px 12px),
  var(--heather)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,253,248,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--heather)}
.brand strong{display:block;font-family:var(--serif);font-size:1.5rem;line-height:1}
.brand strong em{color:var(--gold);font-style:italic}
.brand small{display:block;color:var(--muted);font-size:.74rem}
.brand.light strong{color:var(--parch)}.brand.light small{color:#c8b9d0}
.menu{display:flex;gap:20px;align-items:center}
.menu a{text-decoration:none;color:var(--ink);font-weight:600;font-size:.94rem}
.menu a:hover{color:var(--moss)}
.burger{display:none;font-size:1.6rem;cursor:pointer}

/* hero */
.hero{background:radial-gradient(circle at 85% 20%,rgba(201,162,39,.2),transparent 40%),linear-gradient(140deg,var(--heather),#2f2438);color:var(--parch);padding:68px 0}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:center}
.hero h1{color:var(--parch)}
.lead{font-size:1.1rem;color:#e6dbe8}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.staff svg{width:100%;height:auto}
.caption{font-size:.88rem;color:#d7c9dc}
.caption a{color:var(--gold)}

/* sections */
.section{padding:76px 0}
.band{background:var(--parch)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.values{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.values li{background:var(--parch);border-left:5px solid var(--gold);padding:16px 20px;border-radius:0 8px 8px 0}
.values b{display:block;font-family:var(--serif);font-size:1.15rem;color:var(--heather)}
.values span{color:var(--muted);font-size:.93rem}
.forms{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:24px}
.form{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:22px;position:relative;overflow:hidden}
.form::after{content:"";position:absolute;right:-20px;top:-20px;width:70px;height:70px;border-radius:50%;background:rgba(201,162,39,.12)}
.form span{font-size:1.9rem}
.form p{color:var(--muted);margin:0;font-size:.93rem}
.steps{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:12px}
.steps li{display:grid;grid-template-columns:42px 1fr;gap:14px}
.steps b{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--moss);color:#fff;font-family:var(--serif);font-size:1.2rem}
.steps h3{margin:0 0 .15em}
.steps p{margin:0;color:var(--muted);font-size:.92rem}
.metro{background:var(--heather);color:var(--parch);border-radius:14px;padding:30px;box-shadow:0 18px 40px rgba(74,53,87,.25)}
.metro .eyebrow{color:var(--gold)}
.metro h2{color:var(--parch)}
.bpm{display:flex;align-items:baseline;gap:8px;margin:6px 0}
.bpm output{font-family:var(--serif);font-size:4rem;line-height:1;color:var(--gold)}
.bpm small{font-weight:700;letter-spacing:.1em}
.metro input[type=range]{width:100%;accent-color:var(--gold);margin:8px 0 16px}
.metro .row{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;flex-wrap:wrap}
.metro label{display:grid;gap:6px;font-size:.88rem;font-weight:600}
.metro select{font:inherit;padding:.5em .8em;border-radius:6px;border:1px solid #7a5e8a;background:#3a2944;color:var(--parch)}
.metro .btn{background:var(--gold);border-color:var(--gold);color:var(--heather)}
.metro .small{color:#d7c9dc}
.metro .small a{color:var(--gold)}
.dots{display:flex;gap:10px;margin:18px 0}
.dots i{width:22px;height:22px;border-radius:50%;background:rgba(247,241,227,.18);transition:.06s}
.dots i.on{background:var(--parch)}
.dots i.on.first{background:var(--gold)}

/* tones */
.f-0{background:linear-gradient(135deg,#6b4c7a,#4a3557)}.f-1{background:linear-gradient(135deg,#7d9a6a,#4f6f52)}
.f-2{background:linear-gradient(135deg,#e2c46a,#c9a227)}.f-3{background:linear-gradient(135deg,#a8737a,#6e4248)}
.f-4{background:linear-gradient(135deg,#7a8fa8,#3f5470)}

/* cards */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin:24px 0}
.chip{border:1px solid var(--heather);background:var(--white);border-radius:6px;padding:.35em .95em;font:inherit;font-weight:600;font-size:.86rem;cursor:pointer;color:var(--heather)}
.chip.on,.chip:hover{background:var(--heather);color:var(--parch)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:24px}
.card{background:var(--white);border:1px solid var(--line);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.card:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(74,53,87,.12)}
.thumb{display:grid;place-items:center;aspect-ratio:16/10;text-decoration:none;position:relative}
.thumb::after{content:"";position:absolute;left:0;right:0;bottom:0;height:8px;background:repeating-linear-gradient(90deg,rgba(255,255,255,.35) 0 6px,transparent 6px 18px)}
.thumb span{font-size:2.8rem}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;flex:1}
.card-body .meta{display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:.78rem;color:var(--muted);margin:0 0 10px}
.card-body .cat{margin:0}
.card-body h3 a{color:var(--ink);text-decoration:none}
.card-body h3 a:hover{color:var(--heather-2)}
.card-body p{color:var(--muted);font-size:.9rem;margin:0 0 14px}
.more{margin-top:auto;font-weight:700;text-decoration:none;font-size:.9rem;color:var(--moss)}

/* glossary / faq / partners / cta */
.gloss{margin:16px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.gloss div{background:var(--parch);border-radius:8px;padding:12px 14px}
.gloss dt{font-family:var(--serif);font-weight:700;color:var(--heather)}
.gloss dd{margin:.2em 0 0;font-size:.88rem;color:var(--muted)}
.faq{display:grid;gap:10px;margin-top:16px}
details{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:14px 18px}
details[open]{border-left:5px solid var(--gold)}
summary{font-family:var(--serif);font-weight:600;font-size:1.08rem;cursor:pointer}
details p{color:var(--muted);margin:.5em 0 0}
.partners{padding-top:0}
.plist{display:flex;flex-wrap:wrap;gap:8px}
.plist a{background:var(--parch);border:1px solid var(--line);border-radius:6px;padding:.3em .85em;font-size:.84rem;text-decoration:none;color:var(--ink)}
.plist a:hover{background:var(--heather);color:var(--parch)}
.cta-band{background:var(--moss);color:#fff;border-radius:14px;padding:42px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;margin-bottom:76px}
.cta-band p{margin:0;color:#e1ebdb}

/* article */
.post-hero{background:linear-gradient(140deg,var(--heather),#2f2438);color:var(--parch);padding:42px 0 46px}
.post-hero .cat{color:var(--gold)}
.post-hero h1{color:var(--parch);font-size:clamp(1.8rem,3.8vw,2.7rem)}
.crumbs{font-size:.85rem;color:#c8b9d0;margin-bottom:12px}
.crumbs a{color:var(--parch);text-decoration:none}
.byline{color:#d7c9dc;margin:0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:52px;padding:40px 0 24px}
.post .lead{font-family:var(--serif);font-size:1.25rem;line-height:1.55;color:var(--heather)}
.post h2{margin-top:1.6em;font-size:1.6rem;display:flex;gap:12px;align-items:baseline}
.post h2 span{font-family:var(--sans);font-size:.9rem;color:var(--gold-d);white-space:nowrap}
.post p{font-size:1.04rem}
.toc{background:var(--parch);border-radius:10px;padding:16px 22px;margin:24px 0}
.toc ol{margin:.4em 0 0;padding-left:1.2em}
.readalso{border-top:2px solid var(--gold);border-bottom:2px solid var(--gold);padding:14px 0;margin:28px 0;text-align:center}
.readalso span{display:block;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--moss)}
.readalso a{font-family:var(--serif);font-size:1.2rem;font-weight:600;color:var(--heather);text-decoration:none}
.source{background:var(--parch);border-radius:10px;padding:16px 20px;margin:32px 0 14px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin:14px 0}
.tag{background:var(--parch);border-radius:6px;padding:.2em .7em;font-size:.82rem;color:var(--muted)}
.share{display:flex;gap:8px;flex-wrap:wrap;align-items:center;font-weight:700;margin:16px 0}
.share a{border:1px solid var(--heather);border-radius:6px;padding:.25em .9em;text-decoration:none;font-size:.86rem}
.share a:hover{background:var(--heather);color:var(--parch)}
.author-box{display:flex;gap:16px;align-items:flex-start;background:var(--parch);border-radius:10px;padding:20px;margin:22px 0}
.author-box p{margin:.3em 0 0;color:var(--muted);font-size:.92rem}
.av{flex:0 0 54px;height:54px;border-radius:50%;background:var(--heather);color:var(--gold);display:grid;place-items:center;font-family:var(--serif);font-size:1.5rem;font-weight:700}
.postnav{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-weight:700}
.postnav a{text-decoration:none}
.sidebar{display:flex;flex-direction:column;gap:22px}
.box{border:1px solid var(--line);border-radius:10px;padding:20px;background:var(--white)}
.box.heather{background:var(--heather);color:#e6dbe8;border:0}
.box.heather h3{color:var(--parch)}
.sidebar .box:last-child{position:sticky;top:90px}
.side-list{list-style:none;padding:0;margin:0}
.side-list a{display:block;padding:10px 0;border-bottom:1px solid var(--line);text-decoration:none;color:var(--ink);font-family:var(--serif);font-size:1.02rem;line-height:1.35}
.side-list em{display:block;font-family:var(--sans);font-style:normal;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--moss)}
.side-list a:hover{color:var(--heather-2)}
.related{padding:20px 0 76px}

/* footer */
.site-footer{background:var(--heather);color:#d7c9dc;font-size:.92rem;padding-bottom:26px}
.site-footer a{color:var(--parch)}
.site-footer h3{color:var(--gold);font-size:1.1rem}
.fgrid{display:grid;grid-template-columns:1.3fr 1fr 1.1fr 1.2fr;gap:36px;padding-top:44px}
address{font-style:normal}
.site-footer .small{color:#c8b9d0}
.social{display:flex;flex-wrap:wrap;gap:8px}
.social a{border:1px solid #6b5478;border-radius:6px;padding:.2em .75em;text-decoration:none;font-size:.85rem}
.flist{padding-left:1.1em;margin:0}.flist li{margin-bottom:7px}
.fbottom{border-top:1px solid #5d466b;margin-top:36px;padding-top:20px;text-align:center}
.fbottom p{margin:.3em 0}

/* responsive */
@media (max-width:1000px){
  .hero-grid,.two,.article-layout{grid-template-columns:1fr}
  .forms{grid-template-columns:repeat(2,1fr)}
  .fgrid{grid-template-columns:1fr 1fr}
  .sidebar .box:last-child{position:static}
}
@media (max-width:720px){
  .burger{display:block}
  .menu{display:none;position:absolute;left:0;right:0;top:100%;background:var(--white);flex-direction:column;align-items:flex-start;padding:16px;border-bottom:1px solid var(--line)}
  #menu:checked~.menu{display:flex}
  .forms,.gloss,.fgrid{grid-template-columns:1fr}
  .section{padding:54px 0}
  .cta-band,.metro{padding:24px}
}