/* Site layer — page shell and page-level layout on the Industry tokens.
   The tokens and component classes live in industry.css; nothing here
   redefines a color or a font, it only arranges. */

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}

/* — page shell, rendered by _templates/layout.html — */
.site-header {
  position: sticky; top: 0; z-index: 5;
  background: var(--color-bg); border-bottom: 1px solid var(--color-divider);
}
.header-inner, .footer-inner, .page {
  max-width: 1080px; margin: 0 auto;
  padding-left: clamp(16px, 4.5vw, 28px); padding-right: clamp(16px, 4.5vw, 28px);
}
.header-inner {
  display: flex; align-items: center; gap: 28px;
  padding-top: 14px; padding-bottom: 14px;
}
.brand {
  margin-right: auto; text-decoration: none; color: var(--color-text);
  font-family: var(--font-heading); font-weight: 600; font-size: 19px; letter-spacing: 0.01em;
}
.brand-mark { color: var(--color-accent); }
.site-nav { display: flex; align-items: center; gap: 22px; }
.site-nav a {
  text-decoration: none; color: var(--color-text);
  font-family: var(--font-heading); font-weight: 600; font-size: 15px;
  padding: 4px 0; border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--color-accent-700); }
.site-nav a.active { color: var(--color-accent-700); border-bottom-color: var(--color-accent); }

.page { padding-top: clamp(32px, 7vw, 56px); padding-bottom: clamp(56px, 10vw, 80px); }

.site-footer { border-top: 1px solid var(--color-divider); }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between;
  padding-top: 24px; padding-bottom: 24px; font-size: 13px; opacity: 0.65;
}

@media (max-width: 720px) {
  .header-inner { flex-wrap: wrap; gap: 14px; }
  .site-nav { gap: 16px; }
}
h1, h2, h3, h4, h5, h6 { font-family: var(--font-heading); letter-spacing: -0.015em; }
a { color: var(--color-accent-700); }
a:hover { color: var(--color-accent-900); }

/* — page furniture — */
.eyebrow {
  font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--color-accent-700); margin-bottom: 10px;
}
.kicker {
  font-family: var(--font-heading); font-size: 13px; letter-spacing: 0.1em;
  color: var(--color-accent-700);
}
.lead { font-size: clamp(16px, 2.2vw, 18px); line-height: 1.6; max-width: 54ch; text-wrap: pretty; }
.muted { opacity: 0.65; }

/* — page titles (rst section titles, not raw HTML) — */
.page h1 {
  font-size: clamp(32px, 7.5vw, 60px); line-height: 1.02;
  margin: 0 0 28px; max-width: 20ch;
}
.page h2 { font-size: clamp(26px, 6vw, 34px); line-height: 1.08; margin: clamp(38px, 7vw, 56px) 0 18px; }
.page h2 + .rows, .page h2 + p { margin-top: 18px; }

/* — hero — */
.hero-portrait {
  padding: 14px; margin: 0; align-self: center; justify-self: end;
  width: 100%; max-width: 260px;
  display: flex; flex-direction: column; gap: 10px;
}
.hero-portrait .plate { outline: 1px solid var(--color-divider); aspect-ratio: 4 / 5; overflow: hidden; }
.hero-portrait figcaption {
  display: flex; justify-content: space-between; gap: 10px;
  font-family: var(--font-heading); font-size: 10px;
  letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.6;
}
.hero-portrait img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; display: block; }

.hero {
  display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 48px; align-items: stretch; margin-bottom: 64px;
}
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }

/* — grids — */
.cell-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 210px), 1fr));
  gap: 22px; margin: 22px 0 56px;
}
.cell-grid.two-up { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
.cell-grid .card { padding: 20px; }
.cell-grid .card ul { margin: 0; padding-left: 18px; font-size: 15px; line-height: 1.7; }
.cell-grid .card-title { font-size: 21px; }


/* — principle / timeline rows — */
.rows { border-bottom: 1px solid var(--color-divider); margin: 24px 0 56px; }
/* — attitude: heading left, rows right — */
/* In rst the h2 is a Sphinx section title and .rows is a separate raw block, so
   they are siblings inside <section>; the design puts them side by side. */
.page section:has(> .rows) {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px); align-items: start;
  margin-top: clamp(48px, 8vw, 80px);
}
.page section:has(> .rows) > h2 { margin-top: 0; }
/* the section title carries the design's eyebrow above it */
.page section:has(> .rows) > h2::before {
  content: "Attitude"; display: block;
  font-family: var(--font-heading); font-size: 13px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--color-accent-700); margin-bottom: 10px;
}
/* anything after the rows (e.g. the accent field) spans the full width below */
.page section:has(> .rows) > .rows ~ * { grid-column: 1 / -1; }
@media (max-width: 860px) {
  .page section:has(> .rows) { grid-template-columns: minmax(0, 1fr); }
}

.rows > div {
  display: flex; align-items: baseline; gap: 20px; padding: 18px 0;
  border-top: 1px solid var(--color-divider);
}
.rows .mark { font-family: var(--font-heading); color: var(--color-accent-700); min-width: 42px; }
.rows h3 { font-size: 20px; margin: 0 0 4px; }
.rows p { margin: 0; font-size: 15px; opacity: 0.85; max-width: 62ch; }

/* — case studies: a grid of blueprint cards — */
.case-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 26px; margin: 32px 0 0;
}
.case-card { padding: 24px; display: flex; flex-direction: column; gap: 12px; }
.case-card h2 { font-size: clamp(21px, 5vw, 24px); line-height: 1.1; margin: 0; }
.case-card p { margin: 0; font-size: 15px; line-height: 1.6; opacity: 0.9; }
.case-card .tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

/* — patents register — */
.patents { display: flex; flex-direction: column; border-bottom: 1px solid var(--color-divider); margin-top: 8px; }
.patent {
  display: flex; flex-wrap: wrap; gap: 24px; align-items: baseline;
  padding: 16px 0; border-top: 1px solid var(--color-divider);
}
.pat-no {
  flex: 0 0 190px; font-family: var(--font-heading); font-size: 14px;
  letter-spacing: 0.04em; color: var(--color-accent-700);
}
.pat-body { flex: 1 1 260px; min-width: 0; }
.pat-title { display: block; font-size: 15px; line-height: 1.5; }
.pat-authors { display: block; font-size: 13px; line-height: 1.5; opacity: 0.7; margin-top: 3px; }
.pat-status { flex: 0 0 auto; }
@media (max-width: 560px) { .patent { gap: 10px; } .pat-no { flex: 0 0 100%; } }

/* — accent field (one per page at most) — */
.field-accent {
  padding: 30px 32px; margin: 48px 0 0;
  background: var(--color-accent-900); color: var(--color-bg);
  display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between;
}
.field-accent h2 { font-size: 30px; line-height: 1.1; margin: 0; max-width: 36ch; }
.field-accent .next-label {
  font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  opacity: 0.7; margin-bottom: 6px;
}
.field-accent h2, .case h2 { margin-top: 0; }
.field-accent .btn { background: var(--color-bg); color: var(--color-accent-900); border-color: var(--color-bg); }
.field-accent > .corner { color: color-mix(in srgb, #f2f2f3 65%, transparent); }

/* — contact — */
.contact-layout {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px; align-items: start;
}
.form-frame { padding: 0; display: flex; flex-direction: column; background: var(--color-bg); }
.form-frame-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px;
  padding: 12px 16px; border-bottom: 1px solid var(--color-text);
  font-family: var(--font-heading); font-size: 12px; letter-spacing: 0.12em;
}
.form-frame iframe { width: 100%; height: min(760px, max(520px, 78vh)); border: 0; display: block; background: var(--color-bg); }
.form-frame-foot {
  border-top: 1px solid var(--color-divider); padding: 10px 16px;
  font-size: 12px; opacity: 0.6;
}
.social-links {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  gap: 10px; max-width: 460px;
}
.social {
  padding: 14px; display: flex; align-items: center; gap: 12px;
  text-decoration: none; color: var(--color-text);
}
.social:hover { background: var(--color-accent-100); color: var(--color-text); }
.social-mark {
  flex: 0 0 38px; min-width: 0; height: 38px; display: grid; place-items: center;
  background: var(--color-accent-900); color: var(--color-bg);
}
.social-mark i { font-size: 19px; }
.social-text { min-width: 0; }
.social-name { display: block; font-family: var(--font-heading); font-size: 16px; }
.social-handle {
  display: block; font-size: 12px; opacity: 0.65;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

@media (max-width: 820px) {
  .hero, .case, .contact-layout { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .results { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}


/* — tech stack: factory elevation (tech-stack.rst) — */
.plant {
  display: flex; flex-wrap: wrap;
  gap: 32px; align-items: flex-end; margin: 36px 0 44px;
}
.plant-a { flex: 2.1 1 0; min-width: 420px; display: flex; flex-direction: column; }
.plant-b { flex: 1 1 0; min-width: 280px; display: flex; flex-direction: column; }
.plant-head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: 16px; margin-bottom: 10px;
}
.plant-head .note { font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; }

/* sawtooth north-light roof, drawn with clip-path */
.roof-row { display: flex; align-items: flex-end; margin-bottom: -1px; }
.roof-saw {
  flex: 1; height: 34px; background: var(--color-accent-900);
  clip-path: polygon(
    0% 100%, 0% 42%, 12.5% 0%, 12.5% 100%, 12.5% 42%, 25% 0%, 25% 100%,
    25% 42%, 37.5% 0%, 37.5% 100%, 37.5% 42%, 50% 0%, 50% 100%,
    50% 42%, 62.5% 0%, 62.5% 100%, 62.5% 42%, 75% 0%, 75% 100%,
    75% 42%, 87.5% 0%, 87.5% 100%, 87.5% 42%, 100% 0%, 100% 100%);
}
.chimney {
  width: 26px; height: 58px; margin-left: 14px; background: var(--color-bg);
  border: 1px solid var(--color-text); border-bottom: 0;
}
.roof-gable {
  flex: 1; height: 34px; background: var(--color-accent-900);
  clip-path: polygon(0% 100%, 50% 0%, 100% 100%);
}

/* building shell — open at the bottom, it sits on the ground line */
.shell {
  border: 1px solid var(--color-text); border-bottom: 0; padding: 18px;
  display: flex; flex-direction: column;
}
.shell-b { gap: 14px; }

.floor { display: flex; gap: 14px; align-items: center; }
.floor + .floor, .piping + .floor { margin-top: 12px; }
.floor:first-child { margin-bottom: 12px; }
.floor-base { border-top: 1px dashed var(--color-accent); padding-top: 14px; }
.floor-top { border-bottom: 1px dashed var(--color-divider); padding-bottom: 12px; }
.level {
  font-family: var(--font-heading); font-size: 12px; letter-spacing: 0.12em;
  color: var(--color-accent-700); writing-mode: vertical-rl;
  transform: rotate(180deg); text-align: center;
}
.units { flex: 1; display: grid; gap: 14px; }
.units.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.units.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.units.cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.units.wrap { grid-template-columns: repeat(auto-fit, minmax(min(100%, 120px), 1fr)); }

.unit {
  padding: 14px; display: flex; flex-direction: column; gap: 4px;
  text-align: center; border: 1px solid var(--color-divider);
}
.shell-b .unit { text-align: left; }
.unit-name { font-family: var(--font-heading); font-size: 20px; line-height: 1.1; }
.unit-sub { font-size: 12px; opacity: 0.7; }
.unit-base { background: var(--color-accent-100); padding: 18px 14px; }
.unit-base .unit-name { font-size: 26px; }
.unit-base .unit-sub { opacity: 0.75; }

/* interface piping: double-line risers crossing a dashed service band */
.piping {
  position: relative; display: flex; align-items: center;
  min-height: 56px; padding: 8px 0;
  border-top: 1px dashed var(--color-accent);
  border-bottom: 1px dashed var(--color-accent);
}
.risers {
  position: absolute; inset: 0; display: grid;
  grid-template-columns: repeat(9, 1fr); pointer-events: none;
}
.risers i { width: 0; margin: 0 auto; border-right: 3px double var(--color-accent); }
.pipe-labels {
  position: relative; display: flex; flex-wrap: wrap; gap: 8px;
  align-items: center; padding: 0 6px;
}
.pipe-labels > * { background: var(--color-bg); }
.pipe-title {
  font-family: var(--font-heading); font-size: 12px; letter-spacing: 0.12em;
  color: var(--color-accent-700); padding: 2px 6px;
}

.ground {
  flex: 0 0 100%; height: 30px; border-top: 2px solid var(--color-text);
  background: repeating-linear-gradient(135deg, var(--color-neutral-400) 0 1px, transparent 1px 8px);
}

.cell-grid.three-up { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.cell-grid.three-up p { margin: 6px 0 0; font-size: 15px; line-height: 1.65; opacity: 0.9; }

@media (max-width: 900px) {
  .plant { gap: 40px; }
  .units.cols-3, .units.cols-4, .units.cols-5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .level { writing-mode: horizontal-tb; transform: none; }
  .floor { flex-direction: column; align-items: stretch; }
}


/* — home page key plate: a drawing-sheet title block in place of a portrait — */
.key-plate { padding: 0; display: flex; flex-direction: column; background: var(--color-bg); }
.plate-head {
  display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px;
  border-bottom: 1px solid var(--color-text);
  font-family: var(--font-heading); font-size: 11px; letter-spacing: 0.12em;
}
.plate-sheet { color: var(--color-accent-700); }
.plate-body { padding: 18px 16px 20px; display: flex; flex-direction: column; }

.mini-roof-row { display: flex; align-items: flex-end; margin-bottom: -1px; }
.mini-roof {
  flex: 1; height: 18px; background: var(--color-accent-900);
  clip-path: polygon(0% 100%, 0% 42%, 20% 0%, 20% 100%, 20% 42%, 40% 0%, 40% 100%,
    40% 42%, 60% 0%, 60% 100%, 60% 42%, 80% 0%, 80% 100%, 80% 42%, 100% 0%, 100% 100%);
}
.mini-chimney {
  width: 14px; height: 30px; margin-left: 10px; background: var(--color-bg);
  border: 1px solid var(--color-text); border-bottom: 0;
}
.mini-shell {
  border: 1px solid var(--color-text); border-bottom: 0; padding: 12px;
  display: flex; flex-direction: column; gap: 8px;
}
.mini-row { display: grid; gap: 8px; }
.mini-row.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.mini-row.cols-3:not(.mini-base) span { padding: 7px 2px; }
.mini-row.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
.mini-row.cols-4 span { padding: 7px 2px; }
.mini-row.cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.mini-row.cols-5 span { padding: 7px 2px; }
.mini-row span {
  border: 1px solid var(--color-divider); padding: 7px 3px; text-align: center;
  font-family: var(--font-heading); font-size: 12px;
}
.mini-base { border-top: 1px dashed var(--color-accent); padding-top: 8px; }
.mini-base span { background: var(--color-accent-100); padding: 10px 4px; font-size: 16px; }

.mini-pipe {
  position: relative; height: 26px; display: flex; align-items: center;
  border-top: 1px dashed var(--color-accent); border-bottom: 1px dashed var(--color-accent);
}
.mini-risers { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(7, 1fr); }
.mini-risers i { width: 0; margin: 0 auto; border-right: 3px double var(--color-accent); }
.mini-pipe-label {
  position: relative; background: var(--color-bg); padding: 1px 6px;
  font-family: var(--font-heading); font-size: 11px; letter-spacing: 0.1em;
  color: var(--color-accent-700);
}
.mini-ground {
  height: 12px; border-top: 2px solid var(--color-text);
  background: repeating-linear-gradient(135deg, var(--color-neutral-400) 0 1px, transparent 1px 7px);
}

.plate-block {
  margin: 0; border-top: 1px solid var(--color-text);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 1px; background: var(--color-bg);
}
.plate-block > div {
  background: var(--color-bg); outline: 1px solid var(--color-divider);
  padding: 10px 14px;
}
.plate-block dt { font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0.55; }
.plate-block dd { font-family: var(--font-heading); font-size: 15px; margin: 0; }

/* full-width variant: the plate as a wide drawing sheet below the hero */
.key-plate-wide { margin: 40px 0 0; }
.key-plate-wide .mini-roof { height: 26px; }
.key-plate-wide .mini-chimney { width: 16px; height: 40px; margin-left: 12px; }
.key-plate-wide .plate-block { grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }

.plate-link {
  border-top: 1px solid var(--color-text); padding: 11px 14px;
  display: flex; justify-content: space-between; align-items: center; gap: 10px;
  font-family: var(--font-heading); font-size: 13px; letter-spacing: 0.08em;
  color: var(--color-accent-700); text-decoration: none;
}
.plate-link:hover { background: var(--color-accent-100); }

/* — phones — */
@media (max-width: 560px) {
  .header-inner { flex-wrap: wrap; gap: 10px 14px; }
  .brand { font-size: 16px; }
  .site-nav { gap: 14px; flex-wrap: wrap; }
  .site-nav a { font-size: 14px; }

  .hero { gap: 26px; margin-bottom: 44px; }
  .actions .btn { flex: 1 1 100%; text-align: center; }

  /* the drawing: two units per floor, level labels back to horizontal */
  .units.cols-3, .units.cols-4, .units.cols-5, .units.wrap {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .plant { gap: 32px; }

  /* attitude / timeline rows */
  .rows > div { gap: 12px; }
  .rows .mark { min-width: 26px; }

  .case-card { padding: 18px; }
  .footer-inner { gap: 8px; }
}