/* Layout concept: a quiet market-desk page. Gold for metals, petrol teal for oil, ink for stocks; numbers set in mono. */
:root{
  --paper:#F6F7F9; --card:#FFFFFF; --ink:#13202D; --muted:#566476; --rule:#DCE1E8;
  --gold:#94660F; --gold-soft:#F3E8CF; --oil:#1D5568; --oil-soft:#DDEBEF;
  --up:#1B7A48; --down:#B3261E; --focus:#2F6FD6;
  --f-display:"Source Serif 4",Georgia,"Times New Roman",serif;
  --f-body:"Public Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --f-num:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  --wrap:1120px; --read:68ch;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --paper:#0E151D; --card:#141D27; --ink:#E6EBF1; --muted:#97A4B4; --rule:#25313F;
  --gold:#DDAE45; --gold-soft:#2A2314; --oil:#72B7CB; --oil-soft:#13272E;
  --up:#4CC38A; --down:#F0786F; --focus:#7FB0FF; color-scheme:dark}}
:root[data-theme="dark"]{
  --paper:#0E151D; --card:#141D27; --ink:#E6EBF1; --muted:#97A4B4; --rule:#25313F;
  --gold:#DDAE45; --gold-soft:#2A2314; --oil:#72B7CB; --oil-soft:#13272E;
  --up:#4CC38A; --down:#F0786F; --focus:#7FB0FF; color-scheme:dark}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 var(--f-body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--oil);text-underline-offset:3px}
a:hover{color:var(--gold)}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px}
h1,h2,h3{font-family:var(--f-display);line-height:1.18;text-wrap:balance;margin:0}
h1{font-size:clamp(2rem,4.6vw,3.1rem);font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(1.45rem,2.6vw,1.9rem);font-weight:650}
h3{font-size:1.18rem;font-weight:650}
p{margin:0}
.num,table,.stat b{font-family:var(--f-num);font-variant-numeric:tabular-nums}
.wrap{max-width:var(--wrap);margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.eyebrow{font:600 .74rem/1.2 var(--f-body);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.eyebrow.gold{color:var(--gold)} .eyebrow.oil{color:var(--oil)}
.muted{color:var(--muted)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;background:var(--card);padding:8px;z-index:9}

/* Header */
.site-head{border-bottom:1px solid var(--rule);background:var(--card);position:sticky;top:env(safe-area-inset-top,0px);z-index:5}
.head-top{display:flex;align-items:center;justify-content:space-between;gap:12px 20px;padding-block:12px 6px;flex-wrap:wrap}
.logo{font:700 1.2rem/1 var(--f-display);letter-spacing:.04em;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
.logo .marks{display:flex;gap:3px}
.logo .marks i{width:6px;height:20px;border-radius:2px;display:block}
.logo .marks i:nth-child(1){background:var(--gold)}
.logo .marks i:nth-child(2){background:var(--oil);height:15px;margin-top:5px}
.logo .marks i:nth-child(3){background:var(--up);height:24px;margin-top:-4px}
.logo span em{font-style:normal;color:var(--gold)}
.head-tools{display:flex;align-items:center;gap:8px;flex:1;justify-content:flex-end;min-width:0}
form.search{display:flex;align-items:center;border:1px solid var(--rule);border-radius:8px;background:var(--paper);overflow:hidden;min-width:0;flex:0 1 280px}
form.search:focus-within{border-color:var(--focus)}
form.search input{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:.92rem var(--f-body);padding:9px 10px;outline:none}
form.search button{border:0;background:transparent;color:var(--muted);font-size:1.1rem;padding:0 10px;cursor:pointer}
form.search.big{flex:none;max-width:520px;margin-bottom:18px}
form.search.big button.btn{border-radius:0;color:var(--paper);font-size:.9rem;padding:11px 16px}
.icon-btn{width:38px;height:38px;flex:none;display:grid;place-items:center;border:1px solid var(--rule);border-radius:8px;background:var(--card);color:var(--ink);text-decoration:none;font-size:1.05rem;cursor:pointer}
.icon-btn:hover{border-color:var(--gold);color:var(--gold)}
nav.main{display:flex;gap:4px 22px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px}
nav.main::-webkit-scrollbar{display:none}
nav.main a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem;padding:8px 0 10px;border-bottom:2px solid transparent;white-space:nowrap}
nav.main a:hover,nav.main a[aria-current="page"]{border-bottom-color:var(--gold);color:var(--ink)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Ticker tape & widgets */
.tape{background:var(--card);border-bottom:1px solid var(--rule);min-height:46px}
.tvw{position:relative;width:100%;border:1px solid var(--rule);border-radius:10px;background:var(--card);overflow:hidden}
.tape .tvw{border:0;border-radius:0;background:transparent}
.tvw-host,.tvw .tradingview-widget-container,.tvw .tradingview-widget-container__widget{position:relative;z-index:1;height:100%;width:100%}
.tvw-host{background:var(--card)}
.tv-loading{display:grid;place-items:center;height:100%;color:var(--muted);font:.85rem var(--f-body)}
.tape .tv-loading{justify-content:start;padding-left:max(16px,env(safe-area-inset-left,0px))}
.tape .tvw-host{background:var(--card)}
.tvw .tradingview-widget-copyright{display:none}
.tv-attr{font-size:.75rem;color:var(--muted);margin:6px 0 0}
.tv-attr a{color:var(--muted)}
.key-quotes{padding-block:16px 0}

/* Hero */
.hero{padding-block:56px 40px}

.hero p.lede{font-size:1.15rem;color:var(--muted);max-width:52ch;margin-top:16px}
.hero .units{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--rule);border-radius:10px;background:var(--card);overflow:hidden}
.hero .units div{padding:18px 16px;border-right:1px solid var(--rule)}
.hero .units div:last-child{border-right:0}
.hero .units b{display:block;font:600 1.05rem/1.2 var(--f-num);margin-top:6px}
.hero .units small{color:var(--muted);font-size:.8rem}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{display:inline-block;padding:11px 18px;border-radius:8px;font-weight:700;text-decoration:none;border:1px solid var(--ink);color:var(--ink);background:transparent;font-size:.95rem;cursor:pointer}
.btn.primary{background:var(--ink);color:var(--paper)}
.btn.primary:hover{background:var(--gold);border-color:var(--gold);color:#13202D}
.btn:hover{border-color:var(--gold);color:var(--ink)}

/* Sections */
section.band{padding-block:44px;border-top:1px solid var(--rule)}
.section-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar{padding-top:16px;border-top:3px solid var(--gold)}
.pillar.oil{border-top-color:var(--oil)} .pillar.stocks{border-top-color:var(--up)}
.pillar h3{margin:8px 0}
.pillar p{color:var(--muted)}
.pillar a.more{display:inline-block;margin-top:10px;font-weight:600}

/* Cards */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--rule);border-radius:10px;overflow:hidden;display:flex;flex-direction:column;min-width:0}
.card img{aspect-ratio:16/9;object-fit:cover;width:100%}
.card .body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.card h3 a{color:var(--ink);text-decoration:none}
.card h3 a:hover{color:var(--gold)}
.card p{color:var(--muted);font-size:.95rem}
.card .meta{margin-top:auto;font-size:.8rem;color:var(--muted)}
.tools{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.tool{display:block;padding:20px;border:1px solid var(--rule);border-radius:10px;background:var(--card);text-decoration:none;color:var(--ink)}
.tool:hover{border-color:var(--gold);color:var(--ink)}
.tool .formula{font:.82rem/1.4 var(--f-num);color:var(--gold);margin-bottom:10px;display:block}
.tool p{color:var(--muted);font-size:.93rem;margin-top:6px}

/* Article */
.article-head{padding-block:40px 24px}
.article-head .wrap,.prose-wrap{max-width:calc(var(--read) + 32px)}
.article-head p.dek{font-size:1.15rem;color:var(--muted);margin-top:14px}
.byline{display:flex;gap:6px 16px;flex-wrap:wrap;font-size:.85rem;color:var(--muted);margin-top:18px}
.cover{max-width:960px;margin:0 auto 8px}
.cover img{border-radius:10px;width:100%;aspect-ratio:16/9;object-fit:cover}
.cover figcaption{font-size:.78rem;color:var(--muted);margin-top:6px}
.prose{padding-block:16px 48px}
.prose>*+*{margin-top:1.05em}
.prose h2{margin-top:1.9em}
.prose h3{margin-top:1.5em}
.prose ul,.prose ol{padding-left:1.3em}
.prose li+li{margin-top:.35em}
.keybox{background:var(--gold-soft);border-radius:10px;padding:18px 20px}
.keybox h3{margin-bottom:8px;font-size:1rem;font-family:var(--f-body);letter-spacing:.06em;text-transform:uppercase}
.keybox ul{margin:0}
.tbl{overflow-x:auto;border:1px solid var(--rule);border-radius:10px;background:var(--card)}
.tbl table{border-collapse:collapse;width:100%;font-size:.88rem}
.tbl th,.tbl td{padding:9px 12px;text-align:right;border-bottom:1px solid var(--rule);white-space:nowrap}
.tbl th:first-child,.tbl td:first-child{text-align:left}
.tbl thead th{font-family:var(--f-body);font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--paper);position:sticky;top:0}
.tbl tbody tr:last-child td{border-bottom:0}
.sources{font-size:.88rem;color:var(--muted);border-top:1px solid var(--rule);padding-top:16px}
.disclaimer-note{font-size:.85rem;color:var(--muted);border-left:3px solid var(--rule);padding-left:12px}
.related{border-top:1px solid var(--rule);padding-block:36px}

/* Calculator */
.calc{display:grid;grid-template-columns:340px 1fr;gap:28px;align-items:start;padding-block:8px 40px}
.calc form{background:var(--card);border:1px solid var(--rule);border-radius:10px;padding:20px;display:grid;gap:14px}
.field{display:grid;gap:5px}
.field label{font-weight:600;font-size:.88rem}
.field .hint{font-size:.76rem;color:var(--muted)}
.inp{display:flex;align-items:center;border:1px solid var(--rule);border-radius:8px;background:var(--paper);overflow:hidden}
.inp:focus-within{border-color:var(--focus)}
.inp span{padding:0 10px;color:var(--muted);font:.9rem var(--f-num)}
.inp input,.inp select{flex:1;min-width:0;border:0;background:transparent;color:var(--ink);font:1rem var(--f-num);padding:10px 10px 10px 0;outline:none}
.inp select{padding-left:10px;font-family:var(--f-body)}
.inp span+input{padding-left:0}
.two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.results{display:grid;gap:20px;min-width:0}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:12px}
.stat{background:var(--card);border:1px solid var(--rule);border-radius:10px;padding:14px 16px}
.stat small{display:block;color:var(--muted);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
.stat b{display:block;font-size:1.5rem;font-weight:600;margin-top:4px}
.stat.lead{border-color:var(--gold);background:var(--gold-soft)}
.stat.lead b{font-size:2rem}
.panel{background:var(--card);border:1px solid var(--rule);border-radius:10px;padding:16px 18px;min-width:0}
.panel h3{font-size:1rem;margin-bottom:10px;font-family:var(--f-body)}
.stack{display:flex;height:16px;border-radius:5px;overflow:hidden;background:var(--rule)}
.legend{display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:10px;font-size:.84rem}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:0}
.c1{background:var(--ink)} .c2{background:var(--gold)} .c3{background:var(--oil)} .c4{background:var(--up)} .c5{background:var(--muted)}
svg.chart{width:100%;height:auto;display:block}
svg.chart text{fill:var(--muted);font:11px var(--f-num)}
svg.chart .gridl{stroke:var(--rule)}
svg.chart .l1{stroke:var(--ink);fill:none;stroke-width:2.5}
svg.chart .l2{stroke:var(--gold);fill:none;stroke-width:2.5}
svg.chart .a2{fill:var(--gold);opacity:.14}
svg.chart .b1{fill:var(--oil)} svg.chart .b2{fill:var(--gold)}
.toggle{background:none;border:0;color:var(--oil);font:600 .88rem var(--f-body);cursor:pointer;padding:0}
.tbl.scroll{max-height:420px;overflow:auto}

/* Footer */
.site-foot{border-top:1px solid var(--rule);background:var(--card);padding-block:36px;font-size:.88rem;color:var(--muted);margin-top:24px}
.site-foot .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}
.site-foot h4{margin:0 0 8px;color:var(--ink);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}
.site-foot ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.site-foot a{color:var(--muted)} .site-foot a:hover{color:var(--gold)}
.site-foot .fine{margin-top:24px;border-top:1px solid var(--rule);padding-top:16px;font-size:.8rem}

.page-head{padding-block:40px 20px}
.page-head p{color:var(--muted);max-width:60ch;margin-top:10px;font-size:1.08rem}

@media (max-width:900px){
  .hero .wrap,.calc{grid-template-columns:1fr}
  .grid,.tools,.pillars{grid-template-columns:1fr 1fr}
  .site-foot .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .grid,.tools,.pillars{grid-template-columns:1fr}
  .hero{padding-block:32px 28px}
  .hero .units{grid-template-columns:1fr}
  .hero .units div{border-right:0;border-bottom:1px solid var(--rule)}
  .hero .units div:last-child{border-bottom:0}
  .site-head{position:static}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* v2 additions */
.mcards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.mcard{background:var(--card);border:1px solid var(--rule);border-top:3px solid var(--gold);border-radius:10px;padding:18px 20px}
.mcard.oil{border-top-color:var(--oil)} .mcard.stocks{border-top-color:var(--up)}
.mcard .eyebrow.stocks,.up-t{color:var(--up)}
.mcard h3{margin:6px 0 10px}
.mcard ul{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.mcard li a{display:flex;justify-content:space-between;padding:7px 0;border-bottom:1px solid var(--rule);color:var(--ink);text-decoration:none;font-weight:600;font-size:.95rem}
.mcard li:last-child a{border-bottom:0}
.mcard li a::after{content:"→";color:var(--muted)}
.mcard li a:hover{color:var(--gold)}
.hero{padding-block:40px 44px}
.split{display:grid;grid-template-columns:1.35fr 1fr;gap:28px;align-items:start}
.split>*{min-width:0}
.grid.g2{grid-template-columns:1fr 1fr}
.questions{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.questions a{display:grid;gap:6px;padding:18px 20px;border:1px solid var(--rule);border-radius:10px;background:var(--card);text-decoration:none;color:var(--ink)}
.questions a b{font:650 1.15rem/1.25 var(--f-display)}
.questions a span:last-child{color:var(--muted);font-size:.92rem}
.questions a:hover{border-color:var(--gold);color:var(--ink)}
.link-list{padding-left:1.1em}
.stack-list{display:grid;gap:12px}
.mini{display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:center;text-decoration:none;color:var(--ink);padding-bottom:12px;border-bottom:1px solid var(--rule)}
.mini img{border-radius:8px;aspect-ratio:16/9;object-fit:cover}
.mini b{display:block;font:650 1rem/1.3 var(--f-display);margin-top:4px}
.mini:hover b{color:var(--gold)}
.tools{grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.newsletter-band{background:var(--gold-soft);border-top:0}
.nl-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}
.nl-row{display:flex;gap:8px;flex-wrap:wrap}
.nl-row input{flex:1 1 220px;min-width:0;border:1px solid var(--rule);border-radius:8px;background:var(--card);color:var(--ink);font:1rem var(--f-body);padding:11px 12px}
.nl-msg{min-height:1.4em;margin-top:8px;font-size:.9rem;color:var(--ink)}
.site-foot{margin-top:0}
.site-foot .cols{grid-template-columns:1.6fr 1fr 1fr 1fr 1fr}
.sym-row{display:flex;align-items:center;gap:12px 20px;flex-wrap:wrap}
.stock-grid{display:grid;gap:20px;padding-bottom:40px}
.chips{list-style:none;padding:0;margin:0 0 18px;display:flex;flex-wrap:wrap;gap:8px}
.chips li{display:flex;align-items:center;border:1px solid var(--rule);border-radius:999px;background:var(--card);padding:4px 4px 4px 12px;font:.88rem var(--f-num)}
.chips a{color:var(--ink);text-decoration:none}
.chip-x{border:0;background:none;color:var(--muted);font-size:1.1rem;cursor:pointer;padding:0 8px}
.chip-x:hover{color:var(--down)}
.stat b.up{color:var(--up)} .stat b.down{color:var(--down)}
.field.check label{display:flex;align-items:center;gap:8px;font-weight:600}
.field.check input{width:18px;height:18px;accent-color:var(--gold)}
@media (max-width:900px){
  .mcards,.questions{grid-template-columns:1fr}
  .split,.nl-wrap{grid-template-columns:1fr}
  .site-foot .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .grid.g2{grid-template-columns:1fr}
  .head-tools{flex-basis:100%;justify-content:stretch}
  form.search{flex:1 1 auto}
  .mini{grid-template-columns:96px 1fr}
}

/* Keep TradingView iframes from getting an opaque white canvas under a dark page */
.tvw iframe{color-scheme:light}
@media (max-width:600px){.tvw.tv-info{height:330px!important}}