/* ==========================================================================
   UpSynQ — Power & Energy solution page
   Requires foundation.css + home.css (demo shell, scenarios, collapsible
   panels, decision panel) + ibp.css (wb-table, wb-foot, wb-bridge, ibp-cta).
   ========================================================================== */

/* --------------------------------------------------------------------------
   A · Hero + decision network
   -------------------------------------------------------------------------- */
.en-hero { padding: clamp(28px, 4.5vw, 64px) 0 clamp(56px, 7vw, 88px); }
.en-hero__grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(28px, 4vw, 64px); align-items: center; }
.en-hero__title { font-size: clamp(2.4rem, 1.3rem + 3.3vw, 4.1rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.04; max-width: 12ch; }
.en-hero .hero__lede { margin-top: 26px; }

.en-net { margin: 0; }
.en-net__svg { width: 100%; height: auto; font-family: var(--font-body); }
.en-net__lane { font-family: var(--font-mono); font-size: 10px; letter-spacing: .14em; fill: var(--ink-soft); }
.en-net__node rect { fill: #fff; stroke: var(--ink); stroke-width: 1.25; }
.en-net__node--gen rect { fill: var(--cream-warm); }
.en-net__node .t, .en-net__hub .t { font-family: var(--font-display); font-weight: 700; font-size: 16.5px; fill: var(--ink); letter-spacing: -0.01em; }
.en-net__node .s { font-family: var(--font-mono); font-size: 12px; fill: var(--ink-soft); }
.en-net__edge { fill: none; stroke: var(--ink); stroke-width: 1.4; }
.en-net__edge--soft { stroke-dasharray: 4 4; }
.en-net__head { fill: var(--ink); }
.en-net__hub circle { fill: var(--ink); }
.en-net__hub .t { fill: var(--cream); font-size: 17px; }
.en-net__hub .s { font-family: var(--font-mono); font-size: 11px; fill: var(--on-ink-soft); }
.en-net__hub .dot { fill: var(--terracotta-light); }
.en-net__q { font-family: var(--font-display); font-weight: 600; font-size: 15px; fill: var(--terracotta); }
.en-net__list { display: none; }
.js .en-net__hub .dot { animation: pulse 2.6s ease-in-out 1s infinite; transform-origin: 457px 163px; }
@media (prefers-reduced-motion: reduce) { .js .en-net__hub .dot { animation: none; } }

@media (max-width: 960px) {
  .en-hero__grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .en-net__svg { display: none; }
  .en-net__list { display: grid; gap: 0; list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
  .en-net__list li { padding: 14px 0 14px 18px; border-bottom: 1px solid var(--rule); font-size: .95rem; line-height: 1.5; color: var(--ink-mid); position: relative; }
  .en-net__list li::before { content: ''; position: absolute; left: 0; top: 21px; width: 8px; height: 8px; border: 1.5px solid var(--ink); }
  .en-net__list b { display: block; font-family: var(--font-display); color: var(--ink); }
  .en-net__list li.is-hub { background: var(--ink); color: var(--on-ink-soft); padding-right: 14px; padding-left: 32px; }
  .en-net__list li.is-hub b { color: var(--cream); }
  .en-net__list li.is-hub::before { left: 14px; border-radius: 50%; background: var(--terracotta-light); border-color: var(--terracotta-light); }
  .en-hero .hero__ctas .btn { flex: 1 1 100%; }
}

/* Proof strip */
.en-proof { list-style: none; margin: clamp(48px, 6vw, 80px) 0 0; padding: 22px 0 0; border-top: 1px solid var(--ink); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.en-proof li { padding: 0 clamp(18px, 3vw, 36px); border-left: 1px solid var(--rule); display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.en-proof li:first-child { padding-left: 0; border-left: 0; }
.en-proof li > p:last-child { font-size: .95rem; line-height: 1.5; color: var(--ink-mid); max-width: 320px; }
@media (max-width: 860px) {
  .en-proof { grid-template-columns: 1fr; }
  .en-proof li, .en-proof li:first-child { padding: 18px 0; border-left: 0; border-top: 1px solid var(--rule); }
  .en-proof li:first-child { border-top: 0; padding-top: 0; }
}

/* Value-chain bridge (after proof, before the explorer) */
.en-chain-bridge { margin-top: clamp(40px, 5vw, 64px); padding: clamp(22px, 3vw, 32px) 0 0; border-top: 1px solid var(--rule); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: clamp(18px, 4vw, 56px); align-items: start; }
.en-chain-bridge__lead { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.3rem, 1.05rem + 1vw, 1.75rem); line-height: 1.25; letter-spacing: -0.02em; }
.en-chain-bridge div { display: grid; gap: 14px; justify-items: start; }
.en-chain-bridge div p { color: var(--ink-mid); line-height: 1.6; }
@media (max-width: 860px) { .en-chain-bridge { grid-template-columns: 1fr; } }

/* How to read this (explorer) */
.en-howto { margin: 14px 20px 0; border: 1px solid var(--rule); background: #fff; }
.en-howto summary { cursor: pointer; list-style: none; display: flex; align-items: center; gap: 8px; min-height: 40px; padding: 8px 12px; font-size: .86rem; font-weight: 600; }
.en-howto summary::-webkit-details-marker { display: none; }
.en-howto summary::before { content: '?'; width: 18px; height: 18px; display: inline-grid; place-items: center; border: 1px solid var(--ink); border-radius: 50%; font-family: var(--font-mono); font-size: .72rem; }
.en-howto dl { margin: 0; padding: 4px 12px 12px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px 18px; }
.en-howto dt { font-weight: 700; font-size: .82rem; }
.en-howto dd { margin: 3px 0 0; font-size: .8rem; line-height: 1.45; color: var(--ink-mid); }
@media (max-width: 1100px) { .en-howto dl { grid-template-columns: 1fr 1fr; } }
@media (max-width: 720px) { .en-howto { margin: 12px 14px 0; } .en-howto dl { grid-template-columns: 1fr; } }

/* --------------------------------------------------------------------------
   C · One operating day
   -------------------------------------------------------------------------- */
.en__top { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 420px); gap: 20px; padding: 18px 20px 0; align-items: start; }
.en__top .demo__scenarios { padding: 0; }

.en-outcome { background: var(--ink); color: var(--cream); padding: 16px 18px; display: grid; gap: 8px; }
.en-outcome__label { font-family: var(--font-mono); font-size: .64rem; letter-spacing: .12em; text-transform: uppercase; color: var(--terracotta-light); }
.en-outcome__title { font-family: var(--font-display); font-weight: 700; font-size: 1.12rem; line-height: 1.25; }
.en-outcome__stats { margin: 4px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 14px; }
.en-outcome__stats dt { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .08em; text-transform: uppercase; color: var(--on-ink-soft); }
.en-outcome__stats dd { margin: 2px 0 0; font-family: var(--font-mono); font-size: .92rem; font-weight: 700; }
.en-outcome__stats dd span { font-weight: 400; color: var(--on-ink-soft); font-size: .8rem; }
.en-outcome__warn { font-size: .82rem; color: var(--terracotta-light); font-weight: 600; }
.en-outcome__link { justify-self: start; font-size: .82rem; font-weight: 700; color: var(--cream); text-decoration: underline; text-underline-offset: 3px; }
.en-outcome__link:hover { color: var(--terracotta-light); }

.en__grid { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); gap: 0 28px; padding: 8px 20px 22px; }
.en-panel { min-width: 0; }
.en-panel--chart { grid-column: 1 / -1; }
.en-panel--decision { grid-column: 1 / -1; padding: 22px 24px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 12px 32px; align-items: start; margin-top: 16px; }
.en-panel--decision > * { grid-column: 1; }
.en-panel--decision > .en-alts, .en-panel--decision > .decision__trade { grid-column: 2; }
.en-panel--decision > .en-alts { grid-row: 1 / span 6; }
.en-policy { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .04em; color: var(--on-ink-soft); }
.en-panel--decision:focus { outline: 2px solid var(--terracotta-light); outline-offset: 3px; }

/* chart */
.en-chartwrap { background: #fff; border: 1px solid var(--rule); padding: 8px 6px 2px; }
.en-chart { display: block; max-width: 100%; height: auto; touch-action: pan-y; }
.en-grid { stroke: var(--rule-soft); stroke-width: 1; vector-effect: non-scaling-stroke; }
.en-axis { font-family: var(--font-mono); font-size: 11px; fill: var(--ink-soft); }
.en-a--contract { fill: #DDD3BC; }
.en-a--own { fill: #8C7D69; }
.en-a--buy { fill: var(--terracotta); }
.en-a--short { fill: #1A1612; }
.en-a--band { fill: none; stroke: var(--ink); stroke-width: 1; stroke-dasharray: 2 3; opacity: .55; vector-effect: non-scaling-stroke; }
.en-demand { fill: none; stroke: var(--ink); stroke-width: 2; vector-effect: non-scaling-stroke; }
.en-ref { fill: none; stroke: var(--ink-soft); stroke-width: 1.5; stroke-dasharray: 6 4; vector-effect: non-scaling-stroke; }
.en-surplus { fill: var(--positive); }
.en-band { fill: var(--terracotta); opacity: .07; }
.en-band__label { font-family: var(--font-mono); font-size: 11px; fill: var(--terracotta); }
.en-sel { fill: var(--ink); opacity: .14; }
.en-hit rect { fill: transparent; cursor: crosshair; }

.en-legend { display: flex; flex-wrap: wrap; gap: 6px 16px; margin-top: 10px; font-size: .78rem; color: var(--ink-soft); }
.en-legend span { display: inline-flex; align-items: center; gap: 6px; }
.en-legend i { width: 14px; height: 10px; display: inline-block; }
.k-contract { background: #DDD3BC; } .k-own { background: #8C7D69; } .k-buy { background: var(--terracotta); } .k-short { background: var(--ink); }
.k-band { border: 1px dashed var(--ink); height: 8px !important; } .k-ref { border-top: 2px dashed var(--ink-soft); height: 0 !important; }
.k-bid { background: var(--ink); } .k-single { background: repeating-linear-gradient(135deg, var(--terracotta) 0 3px, #f3d9cf 3px 6px); } .k-need { border-top: 2px solid var(--terracotta); height: 0 !important; }

.en-slider { display: grid; grid-template-columns: auto 1fr; gap: 12px; align-items: center; margin-top: 14px; font-size: .85rem; font-weight: 600; }
.en-slider input { width: 100%; accent-color: var(--terracotta); min-height: 32px; }
.en-read { margin-top: 10px; padding: 12px 14px; background: #fff; border: 1px solid var(--rule); }
.en-read__t { font-family: var(--font-mono); font-size: .78rem; font-weight: 700; margin-bottom: 8px; }
.en-read__dl { margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 6px 16px; }
.en-read__dl dt { font-size: .74rem; color: var(--ink-soft); }
.en-read__dl dd { margin: 0; font-family: var(--font-mono); font-size: .88rem; font-weight: 700; }
.en-read__dl .is-buy dd { color: var(--terracotta); }
.en-read__dl .is-short dd { color: var(--ink); text-decoration: underline; }

/* net position */
.en-pos { margin: 0 0 4px; display: grid; gap: 0; background: #fff; border: 1px solid var(--rule); }
.en-pos div { display: flex; justify-content: space-between; gap: 12px; padding: 9px 12px; border-bottom: 1px solid var(--rule-soft); }
.en-pos div:last-child { border-bottom: 0; }
.en-pos dt { font-size: .9rem; color: var(--ink-mid); }
.en-pos dd { margin: 0; font-family: var(--font-mono); font-size: .9rem; font-weight: 700; white-space: nowrap; }
.en-pos .is-total { background: var(--cream); border-top: 1px solid var(--ink); }
.en-pos .is-total dd { color: var(--terracotta); }
.en-pos .is-short dd { text-decoration: underline; }
.en-units { margin-top: 12px; }

/* bids */
.en-bidchart { display: block; max-width: 100%; height: auto; background: #fff; border: 1px solid var(--rule); }
.en-bid { fill: var(--ink); stroke: #fff; stroke-width: .6; vector-effect: non-scaling-stroke; }
.en-bid--alt { fill: #3D342A; }
.en-single { fill: #E7B6A6; }
.en-need { fill: none; stroke: var(--terracotta); stroke-width: 2; vector-effect: non-scaling-stroke; }
.en-corr { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 5 4; vector-effect: non-scaling-stroke; }
.en-bidstats { margin: 12px 0 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.en-bidstats dt { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); }
.en-bidstats dd { margin: 2px 0 0; font-family: var(--font-mono); font-size: .9rem; font-weight: 700; }
.en-bidstats dd span { display: block; font-weight: 400; font-size: .72rem; color: var(--ink-soft); }
.en-ladder { margin-top: 12px; }
.en-ladder summary { cursor: pointer; font-weight: 600; font-size: .9rem; min-height: 36px; display: flex; align-items: center; gap: 8px; list-style: none; }
.en-ladder summary::-webkit-details-marker { display: none; }
.en-ladder summary::before { content: '+'; font-family: var(--font-mono); width: 18px; height: 18px; display: inline-grid; place-items: center; border: 1px solid var(--ink); font-size: .8rem; }
.en-ladder[open] summary::before { content: '−'; }
.en-legend [hidden] { display: none; }
.en-ladder .wb-table { margin-top: 6px; }

/* decision */
.en-binding { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.en-binding li { font-size: .86rem; color: var(--cream); padding-left: 12px; border-left: 2px solid var(--terracotta-light); }
.en-ref-line { font-size: .84rem; color: var(--on-ink-soft); }
.en-alts { width: 100%; border-collapse: collapse; font-size: .82rem; margin-top: 4px; }
.en-alts th, .en-alts td { padding: 8px 6px; text-align: right; border-bottom: 1px solid var(--ink-line); vertical-align: top; }
.en-alts thead th { font-family: var(--font-mono); font-size: .58rem; letter-spacing: .06em; text-transform: uppercase; color: var(--on-ink-soft); font-weight: 500; }
.en-alts th[scope="row"], .en-alts thead th:first-child { text-align: left; }
.en-alts td { font-family: var(--font-mono); white-space: nowrap; }
.en-alts tr.is-rec th, .en-alts tr.is-rec td { color: var(--terracotta-light); }
.en-rec { display: block; font-family: var(--font-mono); font-size: .58rem; letter-spacing: .08em; text-transform: uppercase; margin-top: 2px; }
.en-delta { display: block; font-size: .72rem; color: var(--on-ink-soft); }

@media (max-width: 1100px) {
  .en__top { grid-template-columns: 1fr; }
  .en__grid { grid-template-columns: 1fr; }
  .en-panel--decision { grid-template-columns: minmax(0, 1fr); }
  .en-panel--decision > .en-alts, .en-panel--decision > .decision__trade { grid-column: 1; grid-row: auto; }
}
@media (max-width: 720px) {
  .en__top { padding: 14px 14px 0; gap: 14px; }
  .en__grid { padding: 4px 14px 16px; }
  .en-panel--decision { margin: 10px 0 8px; padding: 18px 16px; }
  .en-alts td { white-space: normal; }
  .en-alts th, .en-alts td { padding: 8px 4px; }
  .en-bidstats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .en-slider { grid-template-columns: 1fr; gap: 4px; }
  .en-alts thead th:nth-child(4), .en-alts td:nth-child(4) { display: none; }
}

/* --------------------------------------------------------------------------
   D · Fuel-to-ash desks (on ink)
   -------------------------------------------------------------------------- */
.desks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; position: relative; }
.desks__col { display: flex; flex-direction: column; gap: 12px; padding: 0 20px; position: relative; }
.desks__col:first-child { padding-left: 0; }
.desks__col:last-child { padding-right: 0; }
.desks__col + .desks__col { border-left: 1px solid var(--ink-line); }
.desks__col + .desks__col::before { content: '→'; position: absolute; left: -9px; top: 48%; color: var(--terracotta-light); background: var(--ink); line-height: 1; padding: 4px 0; }
.desks__col--mid { justify-content: center; }
.desks__lane { font-family: var(--font-mono); font-size: .66rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--on-ink-soft); margin-bottom: 2px; }
.desk { padding: 18px; border: 1px solid var(--ink-line); background: var(--ink-raised); display: grid; gap: 8px; }
.desk__n { font-family: var(--font-mono); font-size: .7rem; color: var(--terracotta-light); }
.desk h3 { font-size: 1.08rem; line-height: 1.3; letter-spacing: -0.015em; }
.desk p { font-size: .88rem; line-height: 1.5; color: var(--on-ink-soft); }
.desk--hub { background: var(--cream); color: var(--ink); border-color: var(--cream); }
.desk--hub h3 { color: var(--ink); }
.desk--hub p { color: var(--ink-mid); }
.desk--hub .desk__n { color: var(--terracotta); }
@media (max-width: 960px) {
  .desks { grid-template-columns: 1fr; gap: 28px; }
  .desks__col, .desks__col:first-child, .desks__col:last-child { padding: 0; }
  .desks__col + .desks__col { border-left: 0; padding-top: 28px; border-top: 1px solid var(--ink-line); }
  .desks__col + .desks__col::before { content: '↓'; left: 50%; top: -12px; padding: 0 8px; }
}

/* --------------------------------------------------------------------------
   E · Operator report
   -------------------------------------------------------------------------- */
.report { display: grid; grid-template-columns: 280px minmax(0, 1fr); border-top: 2px solid var(--ink); }
.report__meta { margin: 0; padding: 22px 24px 22px 0; border-right: 1px solid var(--rule); display: grid; gap: 16px; align-content: start; }
.report__meta dt { font-family: var(--font-mono); font-size: .64rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); }
.report__meta dd { margin: 3px 0 0; font-weight: 600; }
.report__body { display: grid; }
.report__entry { padding: 22px 0 22px 28px; border-bottom: 1px solid var(--rule); display: grid; gap: 10px; }
.report__entry:last-child { border-bottom: 0; }
.report__status { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; }
.report__entry > p:not(.report__status):not(.report__figure) { color: var(--ink-mid); line-height: 1.6; max-width: 720px; }
.report__figure { font-size: .92rem; color: var(--ink-soft); }
.report__figure b { font-family: var(--font-display); font-size: 1.6rem; color: var(--ink); letter-spacing: -0.02em; margin-right: 8px; }
.report__entry--why { background: var(--cream-warm); padding-right: 24px; }
@media (max-width: 860px) {
  .report { grid-template-columns: 1fr; }
  .report__meta { border-right: 0; border-bottom: 1px solid var(--rule); padding-right: 0; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .report__entry { padding-left: 0; }
  .report__entry--why { padding-left: 16px; padding-right: 16px; }
}
@media (max-width: 560px) { .report__meta { grid-template-columns: 1fr; } }

/* --------------------------------------------------------------------------
   F · Shared foundation comparison
   -------------------------------------------------------------------------- */
.compare { border-top: 1px solid var(--ink); }
.compare__row { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1fr) minmax(0, 1fr); gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--rule); font-size: .95rem; }
.compare__row--head { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); }
.compare__row b { font-family: var(--font-display); font-weight: 700; }
.compare__row span { color: var(--ink-mid); }
.compare__more { margin-top: 22px; }
@media (max-width: 720px) {
  .compare__row { grid-template-columns: 1fr 1fr; gap: 6px 16px; }
  .compare__row b { grid-column: 1 / -1; }
  .compare__row--head span:first-child { display: none; }
}