/* ==========================================================================
   iottag — article detail pages (/articles/)
   Loaded after main.css + platform.css (.stages/.stage, .photo-card reused).
   Shared article chrome uses the art- prefix; page-specific images are art1-*.
   ========================================================================== */

/* flat navy page-title band with breadcrumb (Figma "Header / 79 /", 200px) */
.art-hero {
  min-height: 200px;
  display: flex; align-items: flex-end;
  padding: calc(var(--nav-h) + 20px) var(--pad-x) 50px;
  background: #2d3357;
}
.art-hero__crumb {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 20px; line-height: 1.4;
  letter-spacing: -.01em; color: #fff;
}
.art-hero__crumb a { color: inherit; text-decoration: none; }
.art-hero__crumb a:hover { text-decoration: underline; }

/* article container — Figma content column is 1120px inside the 80px band */
.section--art { --maxw: 1120px; }

/* typography */
.art-h1 {
  margin: 0;
  font-family: var(--f-alt); font-weight: 500; font-size: 40px; line-height: 1.2;
  letter-spacing: -.01em; color: #4b5059; text-align: left;
}
.art-sub {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 24px; line-height: 1.3;
  letter-spacing: -.01em; color: #4b5059; text-align: left;
}
.art-h2 {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 24px; line-height: 1.3;
  letter-spacing: -.01em; color: #4b5059;
}
.art-copy p, .art-lines p, .art-intro li, .art-p {
  margin: 0;
  font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink);
}
.art-copy { display: flex; flex-direction: column; gap: 20px; }
.art-lines { display: flex; flex-direction: column; }
.art-copy strong, .art-lines strong { font-weight: 700; }
.art-lines--semi p { font-weight: 600; color: #4b5059; }

/* date / category meta row */
.art-meta {
  display: flex; gap: 40px; justify-content: center; align-items: center;
  margin: 0; padding: 0; list-style: none;
}
.art-meta li {
  display: flex; gap: 4px; align-items: center;
  font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink);
}
.art-meta img { width: 20px; height: 20px; }

/* orange pull-quote bar (web-orange lightest + 2px orange left rule) */
.art-quote {
  width: 100%;
  background: #fdf6e5; border-left: 2px solid var(--c-orange);
  padding: 20px 40px;
}
.art-quote p {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 20px; line-height: 1.4;
  letter-spacing: -.01em; color: #4b5059; text-align: center;
}

/* intro row — 400×200 photo + bullet list */
.art-intro { display: flex; gap: 80px; align-items: center; width: 100%; }
.art-intro img { width: 400px; height: 200px; object-fit: cover; border-radius: var(--r-md); flex-shrink: 0; }
.art-intro ul { margin: 0; padding-left: 27px; display: flex; flex-direction: column; }

/* bordered 5-cell icon strip ("Understanding Operational Complexity") */
.art-cells { display: flex; width: 100%; background: #fff; border-radius: var(--r-md); }
.art-cell {
  flex: 1 1 0; min-width: 0; min-height: 180px;
  border: 1px solid #d9d9da;
  display: flex; flex-direction: column; gap: 14px; justify-content: flex-start;
  padding: 20px 16px;
}
.art-cell + .art-cell { border-left: 0; }
/* fixed 48px icon slot keeps every icon — and the text beneath it — on a shared row */
.art-cell img { width: 48px; height: 48px; flex: 0 0 48px; object-fit: contain; }
.art-cell img.art-icon--sm { padding: 4px; }
.art-cell span {
  font-family: var(--f-alt); font-weight: 400; font-size: 19px; line-height: 1.35;
  letter-spacing: -.01em; color: #4b5059;
  text-wrap: balance; hyphens: none;
}

/* second row of a stacked cell grid — collapse the shared border */
.art-cells--join { margin-top: -1px; }

/* joined 240px photo-tile strip (article2 "future of OI") */
.art-strip { display: flex; gap: 1px; width: 100%; height: 240px; border-radius: var(--r-md); overflow: hidden; }
.art-strip .photo-card { height: 100%; border-radius: 0; padding: 20px; }
.art-strip .photo-card > img { border-radius: 0; }
@media (max-width: 960px) {
  .art-strip { flex-wrap: wrap; height: auto; border-radius: var(--r-md); }
  .art-strip .photo-card { flex-basis: 49%; height: 200px; }
}

/* text + image split rows (digital twin / organisation) */
.art-split { display: flex; gap: 40px; align-items: center; width: 100%; }
.art-split > div { flex: 1 1 0; min-width: 0; }
.art-split img { flex-shrink: 0; border-radius: var(--r-md); object-fit: cover; }

/* blue pull-quote variant (article3 — blue-pale fill + blue left rule, left-aligned) */
.art-quote--blue { background: #e9f3f9; border-left-color: var(--c-blue); }
.art-quote--blue p { text-align: left; }

/* two chevron panels with an icon grid ("Examples include / Their purpose is typically") */
.art-band { display: flex; width: 100%; }
.art-band__panel {
  flex: 1 1 0; min-width: 0; min-height: 160px;
  background: #edf5fa;
  display: flex; flex-direction: column; gap: 20px; justify-content: center;
  padding: 24px 64px;
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 50%, calc(100% - 20px) 100%, 0 100%, 20px 50%);
}
.art-band__panel + .art-band__panel { margin-left: -16px; }
.art-band__title {
  margin: 0;
  font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink);
  text-align: left;
}
.art-band__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px 24px; }
.art-band__item {
  display: flex; gap: 8px; align-items: center;
  font-family: var(--f-body); font-size: 16px; line-height: 1.2; color: var(--c-ink);
}
.art-band__item img { width: 24px; height: 24px; flex-shrink: 0; }

/* two-column text block ("Visibility Versus Understanding") */
.art-2col { display: flex; gap: 60px; width: 100%; }
.art-2col > div { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 20px; }

/* article pages use the site text greys (index.html), not Figma's #060309 —
   also override the shared .stage chevron labels (platform.css) inside articles */
.section--art .stage span { color: var(--c-ink); }

/* plain bullet list inside article copy */
.art-list { margin: 0; padding-left: 27px; display: flex; flex-direction: column; }
.art-list li { font-family: var(--f-body); font-size: 18px; line-height: 1.4; color: var(--c-ink); }

/* bullet list inside an .art-lines run (article5 intro) */
.art-lines ul { margin: 0; padding-left: 27px; }
.art-lines li { font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink); }

/* "they can record …" photo cards — 469px copy + 2 staggered card columns (article5) */
.art-recwrap { display: flex; gap: 40px; align-items: center; width: 100%; }
.art-recwrap > div:first-child { width: 469px; flex-shrink: 0; }
.art-records { flex: 1 1 0; min-width: 0; display: flex; gap: 20px; }
.art-records__col { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 20px; justify-content: center; }
.art-records__col--offset { padding-top: 20px; }
.art-record {
  position: relative; height: 128px; overflow: hidden;
  border-radius: var(--r-md);
  display: flex; align-items: center; padding: 32px;
}
.art-record > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.art-record::after { content: ""; position: absolute; inset: 0; background: rgba(0, 0, 0, .4); }
.art-record p {
  position: relative; z-index: 1; margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 24px; line-height: 1.3;
  letter-spacing: -.01em; color: #fff;
}

/* chevron-stage text where only the lead lines are semibold (article5 critical controls) */
.stage .stage__reg { font-weight: 400; }

/* video thumbnail with centred white play disc (article5) */
.art-video { position: relative; width: 360px; height: 320px; flex-shrink: 0; }
.art-video > img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--r-md); }
.art-video__btn {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 37px; height: 37px; background: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.art-video__btn img { width: 33px; height: 33px; }

@media (max-width: 960px) {
  .art-intro { flex-wrap: wrap; gap: 24px; }
  .art-intro img { width: 100%; height: auto; }
  .art-cells { flex-wrap: wrap; }
  .art-cell { flex-basis: 50%; }
  .art-cell + .art-cell { border-left: 1px solid #d9d9da; }
  .art-split { flex-wrap: wrap; }
  .art-split img { width: 100%; height: auto; }
  .art-h1 { font-size: 32px; }
  .art-band { flex-direction: column; }
  .art-band__panel { clip-path: none; border-radius: var(--r-md); }
  .art-band__panel + .art-band__panel { margin-left: 0; margin-top: 8px; }
  .art-2col { flex-direction: column; gap: 20px; }
  .art-recwrap { flex-wrap: wrap; }
  .art-recwrap > div:first-child { width: 100%; }
  .art-records { width: 100%; flex-direction: column; }
  .art-records__col--offset { padding-top: 0; }
  .art-video { width: 100%; }
}

/* ==========================================================================
   ARTICLE 7 — "Operational Intelligence for Underground Ventilation"
   Built 2026-07-29 from Figma uSpSiuWCXpiRjrcPWJdeyD node 13116:30167
   ("Articles 7 (Urgent)"). a7- prefix; reuses .art-* chrome and .stages.
   ========================================================================== */

/* typography ------------------------------------------------------------- */
.a7-h2 {
  margin: 0;
  font-family: var(--f-alt); font-weight: 400; font-size: 32px; line-height: 1.2;
  letter-spacing: -.01em; color: #4b5059;
}
.a7-sub {
  margin: 0;
  font-family: var(--f-body); font-size: 18px; line-height: 1.2;
  color: var(--c-ink); text-align: left;
}
.a7-lead { margin: 0; font-family: var(--f-body); font-weight: 700; font-size: 18px; line-height: 1.2; color: #4b5059; }
.a7-cap { margin: 0; font-family: var(--f-body); font-style: italic; font-size: 18px; line-height: 1.2; color: var(--c-ink); }

/* icon slot — the Figma exports carry each glyph's own extents, so centre
   them inside a fixed square instead of stretching them to fill it */
.a7-ic { flex-shrink: 0; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; }
.a7-ic img { width: auto; height: auto; max-width: 100%; max-height: 100%; }
.a7-ic--16 { width: 16px; height: 16px; }
.a7-ic--40 { width: 40px; height: 40px; }
.a7-ic--48 { width: 48px; height: 48px; }

/* pale-blue callout (Executive Summary / Key Principle / Final Key Message) */
.a7-note {
  width: 100%;
  background: var(--c-blue-pale); border-left: 2px solid var(--c-blue);
  padding: 40px 40px 40px 42px;
  display: flex; flex-direction: column; gap: 4px;
}
.a7-note h3 {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 20px; line-height: 1.4;
  letter-spacing: -.01em; color: #4b5059;
}
.a7-note--summary h3 { color: #1e729c; }
.a7-note p { margin: 0; font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink); }

/* the conclusion pull-quote sits in a taller bar than the inline ones */
.art-quote--lg { padding: 40px; }

/* data tables ------------------------------------------------------------ */
.a7-tablewrap { width: 100%; overflow-x: auto; }
.a7-table {
  width: 100%; min-width: 720px;
  border-collapse: separate; border-spacing: 0;
  border: 1px solid var(--c-blue-tint); border-radius: var(--r-sm); overflow: hidden;
  background: #fff;
  font-family: var(--f-body); font-size: 16px; line-height: 1.2;
}
.a7-table th, .a7-table td { padding: 14px 16px; border-bottom: 1px solid var(--c-blue-tint); vertical-align: middle; text-align: left; }
.a7-table th { background: #1e729c; color: #fff; font-weight: 700; }
.a7-table td { color: var(--c-ink); }
.a7-table th + th, .a7-table td + td { border-left: 1px solid var(--c-blue-tint); }
.a7-table tr:last-child td { border-bottom: 0; }

/* figures ---------------------------------------------------------------- */
.a7-fig { margin: 0; width: 100%; display: flex; flex-direction: column; gap: 20px; }
.a7-fig__box { width: 100%; border-radius: var(--r-md); padding: 40px; display: flex; flex-direction: column; align-items: center; }
.a7-fig__box--grey { background: var(--c-surface); }
.a7-fig__box--blue { background: var(--c-blue-pale); }

/* white node tiles inside a figure */
.a7-row { display: flex; gap: 12px; width: 100%; }
.a7-node {
  flex: 1 1 0; min-width: 0; min-height: 80px;
  background: #fff; border-radius: var(--r-md); padding: 20px;
  display: flex; gap: 12px; align-items: center;
}
.a7-node--bd { border: 1px solid #b4b3b5; }
.a7-node--fixed { flex: 0 0 auto; width: 400px; max-width: 100%; min-height: 64px; justify-content: center; }
.a7-node--tall { min-height: 100px; }
.a7-node span { font-family: var(--f-body); font-weight: 600; font-size: 16px; line-height: 1.2; color: var(--c-ink); }
.a7-node--lg span { font-size: 18px; }
.a7-node--plain { justify-content: center; text-align: center; }

/* Atlas Operational Model card (blue outline + soft shadow) */
.a7-atlas {
  width: 480px; max-width: 100%; min-height: 100px;
  background: #fff; border: 2px solid var(--c-blue-light); border-radius: var(--r-lg);
  box-shadow: 0 4px 8px -2px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.06);
  display: flex; gap: 16px; align-items: center; justify-content: center; padding: 16px 24px;
}
.a7-atlas img { width: 32px; height: 32px; flex-shrink: 0; }
.a7-atlas b { display: block; font-family: var(--f-body); font-weight: 600; font-size: 18px; line-height: 1.2; color: #4b5059; }
.a7-atlas small { display: block; font-family: var(--f-body); font-size: 12px; line-height: 1.2; color: var(--c-ink); }
.a7-atlas--wide { width: 440px; }
.a7-atlas--wide b { font-size: 20px; line-height: 1.5; }

/* cream "Independent Operational Information" pill (figure 1) */
.a7-pill {
  width: 480px; max-width: 100%;
  background: #fdf6e5; border: 1px solid var(--c-orange); border-radius: var(--r-md);
  padding: 21px 41px;
  font-family: var(--f-alt); font-weight: 700; font-size: 20px; line-height: 1.4;
  letter-spacing: -.01em; color: #4b5059; text-align: center;
}

/* connectors ------------------------------------------------------------- */
/* --n is the node count on the fanned-out side; the rail stops half a column
   short at each end so it lands on the outer node centres */
.a7-bus, .a7-fan { position: relative; width: 100%; height: 96px; --wire: #b4b3b5; --n: 5; }
.a7-bus--blue, .a7-fan--blue { --wire: var(--c-blue-light); }
.a7-bus__stubs, .a7-fan__stubs {
  position: absolute; left: 0; right: 0;
  display: grid; grid-template-columns: repeat(var(--n), 1fr); column-gap: var(--gap, 12px);
}
.a7-bus__stubs { top: 0; }
.a7-fan__stubs { bottom: 0; }
.a7-bus__stubs i, .a7-fan__stubs i { justify-self: center; position: relative; width: 1px; height: 48px; background: var(--wire); }
/* the centre stub runs straight through the rail down to the tile below: one
   element, so the two halves can never land on different sub-pixels */
.a7-bus__stubs i.a7-thru { height: 96px; }
.a7-bus__rail, .a7-fan__rail {
  position: absolute;
  left: calc((100% - (var(--n) - 1) * var(--gap, 12px)) / var(--n) / 2);
  right: calc((100% - (var(--n) - 1) * var(--gap, 12px)) / var(--n) / 2);
  height: 1px; background: var(--wire);
}
.a7-bus__rail { top: 48px; }
.a7-fan__rail { top: 47px; }
.a7-fan__drop { position: absolute; left: 50%; top: 0; width: 1px; height: 48px; background: var(--wire); }

/* arrow heads */
.a7-up::before, .a7-down::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  border-left: 4px solid transparent; border-right: 4px solid transparent;
}
.a7-up::before { top: 0; border-bottom: 6px solid var(--wire); }
.a7-down::after { bottom: 0; border-top: 6px solid var(--wire); }

/* round end caps — the Figma connectors land on a tile with a dot, not a head */
.a7-dot-t::before, .a7-dot-b::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  width: 5px; height: 5px; border-radius: 50%; background: var(--wire);
}
.a7-dot-t::before { top: -2px; }
.a7-dot-b::after { bottom: -2px; }

/* elbow from the Atlas card down-and-left into the first chevron (figure 2) */
.a7-elbow { position: relative; width: 100%; height: 56px; --wire: var(--c-blue-light); }
.a7-elbow i { position: absolute; background: var(--wire); }
.a7-elbow__d1 { left: 50%; top: 0; width: 1px; height: 28px; }
.a7-elbow__h  { left: 10%; right: 50%; top: 28px; height: 1px; }
.a7-elbow__d2 { left: 10%; top: 28px; width: 1px; height: 28px; }

/* single connector segments (cross / grid diagrams) */
.a7-ar { display: block; position: relative; --wire: #b4b3b5; }
.a7-ar--blue { --wire: var(--c-blue-light); }
.a7-ar--v { flex: none; width: 1px; height: 36px; margin: 0 auto; background: var(--wire); }
.a7-ar--link { height: 28px; }
.a7-ar--h { height: 1px; width: 100%; background: var(--wire); }
.a7-ar--h.a7-right::after, .a7-ar--h.a7-left::after {
  content: ""; position: absolute; top: 50%; transform: translateY(-50%);
  border-top: 4px solid transparent; border-bottom: 4px solid transparent;
}
.a7-ar--h.a7-right::after { right: 0; border-left: 6px solid var(--wire); }
.a7-ar--h.a7-left::after { left: 0; border-right: 6px solid var(--wire); }
/* figure 3 connectors end in a small round cap at both ends, not an arrow head */
.a7-ar--dot::before, .a7-ar--dot::after {
  content: ""; position: absolute; width: 5px; height: 5px;
  border-radius: 50%; background: var(--wire);
}
.a7-ar--h.a7-ar--dot::before { left: -2px; top: 50%; transform: translateY(-50%); }
.a7-ar--h.a7-ar--dot::after { right: -2px; top: 50%; transform: translateY(-50%); }
.a7-ar--v.a7-ar--dot::before { top: -2px; left: 50%; transform: translateX(-50%); }
.a7-ar--v.a7-ar--dot::after { bottom: -2px; left: 50%; transform: translateX(-50%); }

/* figure 3 — four objectives around the Atlas model.
   Both grids below are laid out by source order (5 cells per row, empty
   placeholder divs where a cell carries no connector). Columns are
   240 | connector | Atlas | connector | 240, so every connector spans the
   whole gap between a tile and the Atlas card, as in the Figma. */
.a7-cross {
  width: 100%;
  display: grid; grid-template-columns: 240px 60px 1fr 60px 240px;
  align-items: center; justify-items: center;
}
.a7-cross > * { width: 100%; }
.a7-cross .a7-atlas { width: 100%; }
/* the top / bottom objectives are the same tile width as the side columns */
.a7-cross .a7-node--plain { width: 240px; margin: 0 auto; }

/* figure 7 — 3 x 3 planning cycle */
.a7-grid3 { width: 100%; display: grid; grid-template-columns: 1fr 24px 1fr 24px 1fr; align-items: center; }
.a7-grid3 > * { width: 100%; }
.a7-grid3 .a7-node, .a7-cross .a7-node { flex: 1 1 auto; }

/* figure 5 / 6 — photo-disc timeline with chevron separators */
.a7-tl { display: flex; width: 100%; background: var(--c-blue-pale); border-radius: var(--r-md); overflow: hidden; }
.a7-tl__col { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 16px; padding: 40px 20px; }
.a7-tl__top { display: flex; gap: 8px; align-items: center; }
.a7-tl__disc { width: 100px; height: 100px; border-radius: 50%; flex-shrink: 0; object-fit: cover; }
.a7-tl__disc--icon { background: #fff; display: flex; align-items: center; justify-content: center; }
/* the hairline runs past the column padding (20px) and 23px into the 24px
   separator, so it stops exactly on the kink of the chevron */
.a7-tl__line { flex: 1 1 0; min-width: 0; height: 1px; background: #fff; margin-right: -43px; }
.a7-tl__col:last-child .a7-tl__line { display: none; }
.a7-tl h3 { margin: 0 0 4px; font-family: var(--f-alt); font-weight: 700; font-size: 16px; line-height: 1.5; color: #4b5059; }
.a7-tl ul { margin: 0; padding-left: 21px; }
.a7-tl li, .a7-tl p { margin: 0; font-family: var(--f-body); font-size: 14px; line-height: 1.2; color: var(--c-grey); }
/* one chevron per gap: down to the kink at y:90 (the disc centre line), then
   back out to the left edge — same construction as .odt3-roles__sep */
.a7-tl__sep { flex: 0 0 24px; align-self: stretch; }
.a7-tl__sep svg { width: 100%; height: 100%; display: block; }

/* scenario panels — grey "Traditional" over white "Operational Intelligence" */
.a7-case { width: 100%; border: 1px solid var(--c-line); border-radius: var(--r-sm); overflow: hidden; }
.a7-case__blk { padding: 40px 40px 40px 42px; display: flex; flex-direction: column; gap: 4px; }
.a7-case__blk--trad { background: var(--c-surface); border-left: 2px solid var(--c-line); }
.a7-case__blk--oi { background: #fff; border-left: 2px solid var(--c-blue); }
.a7-case h3 { margin: 0; font-family: var(--f-alt); font-weight: 700; font-size: 20px; line-height: 1.4; letter-spacing: -.01em; color: #4b5059; }
.a7-case p { margin: 0; font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink); }
.a7-case ul { margin: 0; padding-left: 27px; }
.a7-case li { font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink); }
.a7-checks { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 8px 28px; margin-top: 16px; }
.a7-checks span { display: flex; gap: 8px; align-items: center; font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink); }

/* figure 2 reuses the shared .stages chevrons on a white fill */
.a7-stages .stage { background: #fff; }
.a7-stages .stage span { font-size: 18px; }
.a7-stages .stage--act span { color: #1e729c; }

@media (max-width: 960px) {
  .a7-h2 { font-size: 26px; }
  .a7-fig__box { padding: 24px; }
  .a7-row { flex-wrap: wrap; }
  .a7-node { flex: 1 1 calc(50% - 6px); }
  .a7-node--fixed { flex: 1 1 100%; }
  .a7-bus, .a7-fan, .a7-ar, .a7-elbow { display: none; }
  .a7-cross, .a7-grid3 { grid-template-columns: 1fr; row-gap: 12px; }
  .a7-cross > *,
  .a7-cross__l, .a7-cross__lw, .a7-cross__c, .a7-cross__rw, .a7-cross__r { grid-column: 1; grid-row: auto; }
  .a7-tl { flex-wrap: wrap; }
  .a7-tl__col { flex: 1 1 100%; }
  .a7-tl__sep { display: none; }
  .a7-tl__line { display: none; }
  .a7-case__blk { padding: 24px; }
}

/* ==========================================================================
   WHITE PAPER 1 — "The Operational Intelligence Framework"
   Built 2026-07-29 from Figma uSpSiuWCXpiRjrcPWJdeyD node 13112:25257
   ("White paper details"). wp1- prefix; reuses .art-hero, .a7-ic, .a7-note
   and the shared .stages chevrons.
   ========================================================================== */

/* the white-paper content column is 1280px inside the 80px band */
.section--wp { --maxw: 1280px; }

/* typography ------------------------------------------------------------- */
.wp1-eyebrow {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 16px; line-height: 1.5;
  color: #4b5059;
}
.wp1-h1, .wp1-h2 {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 24px; line-height: 1.3;
  letter-spacing: -.01em; color: #4b5059;
}
.wp1-sub { margin: 0; font-family: var(--f-body); font-size: 18px; line-height: 1.2; color: var(--c-ink); }
/* body runs — Figma keeps consecutive lines inside one 20px/1.5 text node */
.wp1-copy { display: flex; flex-direction: column; width: 100%; }
.wp1-copy--sp { gap: 20px; }
.wp1-copy p, .wp1-copy li {
  margin: 0;
  font-family: var(--f-body); font-size: 20px; line-height: 1.5; color: var(--c-ink);
}
.wp1-copy ul { margin: 0; padding-left: 30px; }
.wp1-lead { display: flex; flex-direction: column; width: 100%; }
.wp1-lead p {
  margin: 0;
  font-family: var(--f-body); font-weight: 600; font-size: 18px; line-height: 1.2; color: #4b5059;
}

/* photo + copy rows (executive summary) ---------------------------------- */
.wp1-split { display: flex; gap: 80px; align-items: center; width: 100%; }
.wp1-split > :not(img) { flex: 1 1 0; min-width: 0; }
.wp1-split img { width: 400px; height: 240px; flex-shrink: 0; border-radius: var(--r-md); object-fit: cover; }

/* cream question bar under the executive summary */
.wp1-quest {
  width: 100%;
  background: #fdf6e5; border-left: 2px solid var(--c-orange);
  padding: 40px 40px 40px 42px;
  display: flex; flex-wrap: wrap; gap: 24px 40px; align-items: center; justify-content: space-between;
}
.wp1-quest p {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 20px; line-height: 1.4;
  letter-spacing: -.01em; color: #4b5059;
}

/* bordered icon-card grids ----------------------------------------------- */
.wp1-grid { width: 100%; background: #fff; border-radius: var(--r-md); overflow: hidden; }
.wp1-row { display: flex; }
.wp1-row + .wp1-row { margin-top: -1px; }
.wp1-card {
  flex: 1 1 0; min-width: 0; min-height: 180px;
  border: 1px solid var(--c-line);
  display: flex; flex-direction: column; gap: 16px; justify-content: center;
  padding: 24px;
}
.wp1-card + .wp1-card { border-left: 0; }
.wp1-card span {
  font-family: var(--f-alt); font-weight: 400; font-size: 20px; line-height: 1.4;
  letter-spacing: -.01em; color: #4b5059;
}
/* copy column beside a grid (chapters 1 and 5) */
.wp1-cardsplit { display: flex; gap: 40px; align-items: center; width: 100%; }
.wp1-cardsplit > .wp1-copy { width: 320px; flex-shrink: 0; }
.wp1-cardsplit > .wp1-copy--lg { width: 400px; }
.wp1-cardsplit > .wp1-grid { flex: 1 1 0; min-width: 0; }
/* a labelled full-width grid stacks 8px under its lead line */
.wp1-labelled { display: flex; flex-direction: column; gap: 8px; width: 100%; }

/* four framework layers (chapter 4) -------------------------------------- */
.wp1-layers { display: flex; gap: 40px; align-items: flex-start; width: 100%; }
.wp1-layer { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 20px; padding: 16px 0; }
.wp1-layer h3 {
  margin: 0;
  font-family: var(--f-alt); font-weight: 700; font-size: 24px; line-height: 1.3;
  letter-spacing: -.01em; color: #4b5059;
}

/* shared .stages chevrons — Figma exports carry each glyph's own extents,
   so cap them instead of stretching to the 40px square platform.css sets */
.wp1-stages .stage img { width: auto; height: auto; max-width: 40px; max-height: 40px; }
.wp1-stages .stage span { font-weight: 400; color: var(--c-ink); }
.wp1-stages .stage span.is-strong { font-weight: 600; }

/* conclusion callout — .a7-note with the blue label and semibold copy */
.wp1-note { gap: 20px; }
.wp1-note h3 { color: var(--c-blue); }
.wp1-note p { font-weight: 600; color: var(--c-ink-2); }

/* "About iottag" closing band ------------------------------------------- */
.wp1-about { position: relative; overflow: hidden; width: 100%; padding: 64px 80px; border: 1px solid rgba(6,3,9,.15); }
.wp1-about__bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.wp1-about__ovl { position: absolute; inset: 0; z-index: 1; background: rgba(5,55,80,.7); }
.wp1-about__inner { position: relative; z-index: 2; display: flex; gap: 16px; align-items: flex-start; width: 100%; }
.wp1-about__inner > img { width: 48px; height: 48px; flex-shrink: 0; }
.wp1-about__body { flex: 1 1 0; min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.wp1-about h2 {
  margin: 0;
  font-family: var(--f-alt); font-weight: 500; font-size: 40px; line-height: 1.2;
  letter-spacing: -.01em; color: #f2f2f2;
}
.wp1-about p { margin: 0; font-family: var(--f-body); font-weight: 600; font-size: 18px; line-height: 1.2; color: #f2f2f2; }

@media (max-width: 1100px) {
  .wp1-quest { gap: 16px 24px; }
  .wp1-quest p { font-size: 18px; }
}
@media (max-width: 960px) {
  .wp1-split { flex-wrap: wrap; gap: 24px; }
  .wp1-split img { width: 100%; height: auto; }
  .wp1-cardsplit { flex-wrap: wrap; gap: 24px; }
  .wp1-cardsplit > .wp1-copy, .wp1-cardsplit > .wp1-copy--lg { width: 100%; }
  .wp1-row { flex-wrap: wrap; }
  .wp1-card { flex-basis: 50%; }
  .wp1-card + .wp1-card { border-left: 1px solid var(--c-line); }
  .wp1-layers { flex-wrap: wrap; gap: 24px; }
  .wp1-layer { flex-basis: 100%; padding: 0; }
  .wp1-stages { flex-wrap: wrap; height: auto; }
  .wp1-stages .stage { flex-basis: 100%; min-height: 140px; clip-path: none; border-radius: var(--r-md); }
  .wp1-stages .stage + .stage { margin-left: 0; margin-top: 8px; }
  .wp1-about { padding: 40px 24px; }
  .wp1-about h2 { font-size: 32px; }
}

/* the shared .stages chevron strip (platform.css) can't fit its 4-6 cells on
   phones — labels get clipped by the chevron notches. Fold into full-width
   icon + label rows (same treatment as the homepage asset strip). */
@media (max-width: 640px) {
  .stages { flex-wrap: wrap; height: auto; gap: 8px; }
  .stages .stage {
    flex: 1 1 100%; min-height: 0;
    clip-path: none; border-radius: var(--r-md);
    flex-direction: row; justify-content: flex-start; gap: 12px;
    padding: 14px 16px;
  }
  .stages .stage + .stage { margin-left: 0; margin-top: 0; }
  .stages .stage span { text-align: left; }
  .stages .stage img { width: 24px; height: 24px; }
}