/* Naira Energies */
:root {
  --ink: #1b2433; --ink-2: #435066; --ink-3: #6b778a;
  --paper: #f7f9fc; --card: #ffffff; --line: #e1e7f0; --soft: #eef3f9;
  --green: #1e6fd9; --green-2: #1559b5; --green-3: #5aa2f5;
  --amber: #f5a524; --amber-2: #b86e00; --amber-soft: #fff4dc;
  --up: #12804f; --down: #c23b22;
  --power: #e89b0c; --oil-gas: #6b5545; --fuel: #c2410c; --gas-cng: #0891b2; --renewables: #2e8b57; --policy: #6d4bb8; --africa: #b4532a; --business: #475569; --simplified: #f5a524;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --r: 10px; --wrap: 1200px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); }
img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--green-2); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding-inline: 20px; }
.narrow { max-width: 860px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; z-index: 50; background: var(--amber); padding: 8px 12px; border-radius: 6px; }
.ic { width: 1em; height: 1em; vertical-align: -0.14em; flex: none; }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; border-radius: 4px; }

/* top bar + masthead */
.topbar { background: var(--green); color: #fff; font-size: 13px; }
.topbar-in { display: flex; gap: 18px; align-items: center; min-height: 34px; }
.topbar-tag { flex: 1; color: #dbe9ff; }
.topbar-links { display: flex; gap: 16px; }
.topbar-links a:hover { color: #fff; }
.masthead { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.mast-in { display: flex; align-items: center; gap: 20px; padding-block: 12px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-word { font: 700 26px/1 var(--serif); letter-spacing: -0.02em; color: var(--green); }
.brand-word span { color: var(--amber-2); }
.search { margin-left: auto; display: flex; background: var(--soft); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; width: min(340px, 40vw); }
.search input { flex: 1; border: 0; background: transparent; padding: 9px 16px; font: inherit; font-size: 14px; min-width: 0; }
.search input:focus { outline: none; }
.search button { border: 0; background: transparent; padding: 0 14px; cursor: pointer; color: var(--ink-2); font-size: 17px; }
.menu-btn { display: none; align-items: center; gap: 6px; border: 1px solid var(--line); background: var(--card); padding: 8px 12px; border-radius: 8px; font: 600 14px var(--sans); cursor: pointer; }
.mainnav { border-top: 1px solid var(--line); }
.mainnav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 2px; overflow-x: auto; scrollbar-width: none; }
.mainnav a { display: block; padding: 11px 13px; font: 600 14.5px var(--sans); color: var(--ink-2); white-space: nowrap; border-bottom: 3px solid transparent; }
.mainnav a:hover { color: var(--green); }
.mainnav a[aria-current="page"] { color: var(--green); border-bottom-color: var(--amber); }
.nav-simplified { margin-left: auto; }
.nav-simplified a { color: var(--amber-2); display: flex; gap: 6px; align-items: center; }

/* ticker */
.ticker { background: #eaf3ff; color: var(--ink); font-size: 13.5px; border-bottom: 1px solid #d3e3fa; }
.ticker-in { display: flex; align-items: center; gap: 16px; min-height: 40px; overflow: hidden; }
.t-head { display: flex; align-items: center; gap: 6px; font-weight: 700; color: var(--amber-2); text-transform: uppercase; letter-spacing: .06em; font-size: 12px; white-space: nowrap; }
.t-list { list-style: none; margin: 0; padding: 0; display: flex; gap: 26px; overflow-x: auto; scrollbar-width: none; flex: 1; }
.t-list li { white-space: nowrap; }
.t-label { color: var(--ink-3); }
.t-val { font-weight: 700; font-variant-numeric: tabular-nums; }
.t-chg { font-size: 12px; font-weight: 600; }
.t-chg.up { color: var(--up); } .t-chg.down { color: var(--down); }
.mtable .t-chg.up { color: var(--up); } .mtable .t-chg.down { color: var(--down); }
.t-asof { color: var(--ink-3); font-size: 12px; white-space: nowrap; }

/* tags and meta */
.tag { display: inline-block; font: 700 11.5px var(--sans); text-transform: uppercase; letter-spacing: .07em; color: var(--c, var(--green)); margin-right: 8px; }
.tag-power { --c: var(--amber-2); } .tag-oil-gas { --c: var(--oil-gas); } .tag-fuel { --c: var(--fuel); } .tag-gas-cng { --c: var(--gas-cng); }
.tag-renewables { --c: var(--renewables); } .tag-policy { --c: var(--policy); } .tag-africa { --c: var(--africa); } .tag-business { --c: var(--business); }
.pill { display: inline-flex; align-items: center; gap: 4px; background: var(--amber-soft); color: var(--amber-2); font: 700 11px var(--sans); text-transform: uppercase; letter-spacing: .06em; padding: 3px 8px; border-radius: 999px; }
.meta { color: var(--ink-3); font-size: 13px; margin: 6px 0 0; }
.dek { color: var(--ink-2); margin: 6px 0 0; }
.kicker { font: 700 13px var(--sans); text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); margin: 0 0 14px; display: flex; align-items: center; gap: 12px; }
.kicker::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.more { display: inline-flex; align-items: center; gap: 6px; font: 600 14px var(--sans); color: var(--green-2); }

/* section art: no stock photos, a coloured panel with the section mark */
.art { position: relative; aspect-ratio: 16/10; border-radius: var(--r); overflow: hidden; display: grid; place-items: center; color: rgba(255,255,255,.92); background: var(--c, var(--green)); }
.art::before { content: ""; position: absolute; inset: 0; background: repeating-linear-gradient(135deg, rgba(255,255,255,.07) 0 2px, transparent 2px 14px), radial-gradient(circle at 80% 15%, rgba(255,255,255,.22), transparent 55%); }
.art .ic { width: 34%; height: 34%; position: relative; filter: drop-shadow(0 6px 14px rgba(0,0,0,.18)); }
.art-power { --c: linear-gradient(135deg, #f2b130, #d9820a); } .art-oil-gas { --c: linear-gradient(135deg, #8a7362, #57473b); }
.art-fuel { --c: linear-gradient(135deg, #e0632a, #a5330b); } .art-gas-cng { --c: linear-gradient(135deg, #12a5c9, #0a6d8a); }
.art-renewables { --c: linear-gradient(135deg, #3aa36c, #1d6b43); } .art-policy { --c: linear-gradient(135deg, #8463cf, #4d3291); }
.art-africa { --c: linear-gradient(135deg, #cf6a3d, #8c3a19); } .art-business { --c: linear-gradient(135deg, #5b6b82, #2f3b4e); }

/* home */
.hero { display: grid; grid-template-columns: 1.65fr 1fr; gap: 28px; padding-block: 28px 8px; }
.lead { display: grid; gap: 16px; }
.lead .art { aspect-ratio: 16/8; }
.lead h1 { font: 700 clamp(28px, 3.6vw, 42px)/1.12 var(--serif); letter-spacing: -0.015em; margin: 8px 0 0; }
.lead .dek { font-size: 18px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 18px 20px; margin-bottom: 20px; }
.panel h2 { font: 700 15px var(--sans); text-transform: uppercase; letter-spacing: .07em; margin: 0 0 12px; display: flex; gap: 8px; align-items: center; color: var(--green); }
.panel-sub { margin: -6px 0 10px; color: var(--ink-3); font-size: 14px; }
.panel-foot { font-size: 12.5px; color: var(--ink-3); margin: 10px 0 0; }
.panel-foot a { text-decoration: underline; }
.panel-simplified { background: linear-gradient(180deg, var(--amber-soft), #fff 70%); border-color: #f3dca6; }
.panel-simplified h2 { color: var(--amber-2); }
.numbered { margin: 0 0 12px; padding: 0; list-style: none; counter-reset: n; }
.numbered li { counter-increment: n; display: grid; grid-template-columns: 30px 1fr; padding: 10px 0; border-top: 1px solid var(--line); }
.numbered li:first-child { border-top: 0; }
.numbered li::before { content: counter(n); grid-row: span 2; font: 700 22px/1 var(--serif); color: var(--amber); }
.numbered a { font: 600 15.5px/1.35 var(--serif); }
.numbered .meta { margin-top: 3px; font-size: 12.5px; }
.numbered.plain li::before { color: var(--line); color: #c9c3b3; }
.top-stories { padding-top: 26px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { display: flex; flex-direction: column; gap: 12px; }
.card h3 { font: 700 19px/1.25 var(--serif); margin: 6px 0 0; letter-spacing: -0.01em; }
.card .dek { font-size: 14.5px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.card:hover h3 a { color: var(--green-2); }
.two-col { display: grid; grid-template-columns: 1fr 340px; gap: 36px; padding-block: 36px; }
.sec-block { margin-bottom: 40px; }
.sec-head { display: flex; align-items: baseline; justify-content: space-between; border-top: 3px solid var(--ink); padding-top: 10px; margin-bottom: 18px; }
.sec-head h2 { font: 700 24px var(--serif); margin: 0; }
.rail .panel { position: relative; }
.wotw-term { font: 700 22px var(--serif); margin: 0 0 4px; color: var(--green); }
.mtable { width: 100%; border-collapse: collapse; font-size: 14px; }
.mtable th, .mtable td { text-align: left; padding: 9px 6px; border-top: 1px solid var(--line); vertical-align: top; }
.mtable.compact tr:first-child th, .mtable.compact tr:first-child td { border-top: 0; }
.mtable th { font-weight: 500; color: var(--ink-2); }
.mtable td.num { text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.mtable thead th { font: 700 12px var(--sans); text-transform: uppercase; letter-spacing: .06em; color: var(--ink-3); border-top: 0; }
.mtable:not(.compact) td.num { text-align: left; }
.m-note { display: block; font-size: 12.5px; color: var(--ink-3); }
.table-scroll { overflow-x: auto; background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 6px 14px; margin-bottom: 30px; }

/* newsletter band */
.nl-band { background: linear-gradient(120deg, #1e6fd9, #4a95f5); color: #fff; margin-top: 20px; }
.nl-in { display: grid; grid-template-columns: 1.2fr 1fr; gap: 30px; align-items: center; padding-block: 44px; }
.nl-band h2 { font: 700 clamp(24px, 3vw, 32px)/1.15 var(--serif); margin: 0 0 8px; }
.nl-band p { margin: 0; color: #e6f0ff; }
.nl-form { display: flex; flex-wrap: wrap; gap: 10px; }
.nl-form input { flex: 1 1 220px; padding: 14px 16px; border-radius: 8px; border: 0; font: inherit; }
.nl-form button { padding: 14px 22px; border: 0; border-radius: 8px; background: var(--amber); color: #2a1a00; font: 700 15px var(--sans); cursor: pointer; }
.nl-form button:hover { background: #ffb93f; }
.nl-msg { flex-basis: 100%; min-height: 1.2em; font-size: 14px; color: #fff3d6 !important; }

/* section pages */
.sec-hero { padding-block: 30px 24px; border-bottom: 1px solid var(--line); margin-bottom: 28px; }
.sec-hero h1 { font: 700 clamp(30px, 4vw, 44px)/1.1 var(--serif); margin: 6px 0 10px; display: flex; gap: 12px; align-items: center; }
.sec-hero h1 .ic { color: var(--amber); }
.sec-hero p { color: var(--ink-2); font-size: 17px; margin: 0; max-width: 720px; }
.crumbs { font-size: 13px; color: var(--ink-3); margin: 0; }
.crumbs a { text-decoration: underline; text-underline-offset: 2px; }
.empty { padding: 40px; background: var(--card); border: 1px dashed var(--line); border-radius: var(--r); text-align: center; color: var(--ink-2); margin-bottom: 40px; }
.empty a { color: var(--green-2); text-decoration: underline; }

/* article */
.article-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 48px; padding-block: 26px 40px; }
.story { max-width: 720px; }
.story-head h1 { font: 700 clamp(30px, 4.2vw, 46px)/1.1 var(--serif); letter-spacing: -0.015em; margin: 10px 0 12px; }
.story-head .dek { font-size: 20px; line-height: 1.5; }
.story-tags { margin-top: 14px; display: flex; gap: 8px; align-items: center; }
.byline { font-size: 14px; color: var(--ink-3); margin: 16px 0 0; }
.byline strong { color: var(--ink); }
.share { display: flex; gap: 8px; margin: 14px 0 0; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.share-btn { display: inline-flex; gap: 6px; align-items: center; border: 1px solid var(--line); background: var(--card); padding: 7px 12px; border-radius: 999px; font: 600 13px var(--sans); color: var(--ink-2); cursor: pointer; }
.share-btn:hover { border-color: var(--green-3); color: var(--green); }
.tldr { margin: 26px 0; background: var(--amber-soft); border-left: 5px solid var(--amber); border-radius: 0 var(--r) var(--r) 0; padding: 18px 22px; }
.tldr h2 { margin: 0 0 8px; font: 700 14px var(--sans); text-transform: uppercase; letter-spacing: .08em; color: var(--amber-2); display: flex; gap: 6px; align-items: center; }
.tldr ul { margin: 0; padding-left: 20px; }
.tldr li { margin: 6px 0; font-size: 16.5px; }
.prose { font-size: 18px; line-height: 1.72; }
.prose p { margin: 0 0 1.15em; }
.prose h2 { font: 700 26px/1.25 var(--serif); margin: 1.6em 0 .5em; }
.prose h3 { font: 700 20px/1.3 var(--serif); margin: 1.4em 0 .4em; }
.prose a { color: var(--green-2); text-decoration: underline; text-underline-offset: 3px; }
.prose ul, .prose ol { padding-left: 24px; margin: 0 0 1.15em; }
.prose li { margin: .35em 0; }
.callout { background: var(--card); border: 1px solid var(--line); border-left: 5px solid var(--green-3); border-radius: 0 var(--r) var(--r) 0; padding: 14px 20px; margin: 1.4em 0; font-size: 17px; }
.callout p { margin: .4em 0; }
.terms, .sources { margin-top: 36px; border-top: 3px solid var(--ink); padding-top: 12px; }
.terms h2, .sources h2 { font: 700 15px var(--sans); text-transform: uppercase; letter-spacing: .07em; margin: 0 0 12px; display: flex; gap: 8px; align-items: center; }
.terms dl { margin: 0; display: grid; gap: 12px; }
.terms dt { font-weight: 700; }
.terms dd { margin: 2px 0 0; color: var(--ink-2); }
.sources ol { padding-left: 22px; font-size: 14.5px; }
.sources li { margin: 6px 0; }
.sources a { color: var(--green-2); text-decoration: underline; word-break: break-word; }
.fine { font-size: 13.5px; color: var(--ink-3); }
.fine a { text-decoration: underline; }

/* glossary + search */
.gl-filter { margin-top: 18px; width: 100%; max-width: 420px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 8px; font: inherit; background: var(--card); }
.glossary { margin: 0 0 50px; display: grid; gap: 2px; }
.glossary > div { background: var(--card); border: 1px solid var(--line); border-radius: 8px; padding: 14px 18px; scroll-margin-top: 140px; }
.glossary > div:target { border-color: var(--amber); box-shadow: 0 0 0 3px var(--amber-soft); }
.glossary dt { font: 700 18px var(--serif); color: var(--green); }
.glossary dd { margin: 4px 0 0; color: var(--ink-2); }
.results { margin-bottom: 50px; }
.results article { padding: 16px 0; border-bottom: 1px solid var(--line); }
.results h3 { margin: 4px 0; font: 700 20px var(--serif); }

/* footer */
.site-foot { background: #eef4fb; color: var(--ink-2); font-size: 14.5px; border-top: 1px solid var(--line); }
.foot-in { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 30px; padding-block: 44px 28px; }
.foot-brand p { max-width: 380px; margin: 12px 0 0; }
.brand-foot .brand-word { color: var(--green); font-size: 22px; }
.brand-foot .brand-word span { color: var(--amber-2); }
.site-foot h4 { color: var(--ink); font: 700 13px var(--sans); text-transform: uppercase; letter-spacing: .08em; margin: 4px 0 12px; }
.site-foot ul { list-style: none; margin: 0; padding: 0; }
.site-foot li { margin: 7px 0; }
.site-foot a:hover { color: var(--green-2); }
.foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; border-top: 1px solid #d8e2ef; padding-block: 18px 26px; font-size: 13px; color: var(--ink-3); }

/* responsive */
@media (max-width: 1020px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .two-col, .article-wrap { grid-template-columns: 1fr; }

  .foot-in { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .nl-in { grid-template-columns: 1fr; }
  .topbar-tag { display: none; }
  .search { display: none; }
  .menu-btn { display: inline-flex; margin-left: auto; }
  .mainnav { display: none; }
  .mainnav.open { display: block; }
  .mainnav ul { flex-direction: column; }
  .mainnav a { border-bottom: 0; border-left: 3px solid transparent; }
  .mainnav a[aria-current="page"] { border-left-color: var(--amber); }
  .nav-simplified { margin-left: 0; }
  .t-asof { display: none; }
  .brand-word { font-size: 22px; }
  .prose { font-size: 17px; }
  .card { flex-direction: row; gap: 14px; }
  .card-art { flex: 0 0 34%; }
  .card .art { aspect-ratio: 1; }
  .card h3 { font-size: 17px; }
  .card .dek { display: none; }
  .grid-4 { grid-template-columns: 1fr; }
}
@media (max-width: 480px) { .foot-in { grid-template-columns: 1fr; } }
.table-scroll .mtable { min-width: 640px; }
.nav-search { display: none; }
@media (max-width: 760px) { .nav-search { display: block; } .nav-search a { display: flex; gap: 6px; align-items: center; } }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.nl-form button:disabled { opacity: .7; cursor: wait; }