/* Critical Energy Services Ltd · Production site
   Technical precision system: monospace labelling, margin rail indices,
   registration marks, service ticker, inverting cards.
   White canvas, cream panels, ink bands, signal orange. */

:root {
  --canvas: #ffffff;
  --paper: #f5f4f0;
  --panel: #edece6;
  --panel-deep: #e6e4dc;
  --ink: #1d1e1a;
  --ink-soft: #34352e;
  --muted: #6f6e66;
  --faint: #b3b2a8;
  --hair: #e1e0d8;
  --accent: #f04400;
  --accent-soft: #ff8a50;
  --max: 1280px;
  --rail: 96px;
  --ease: cubic-bezier(.22, 1, .36, 1);
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: top .2s;
}
.skip-link:focus { top: 12px; }

.wrap { width: min(calc(100% - 64px), var(--max)); margin: 0 auto; }

/* margin rail: section index set in the left margin */
.section .wrap,
.cta .wrap,
.hero .wrap,
.detail-hero .wrap { position: relative; padding-left: var(--rail); }
.sec-no {
  position: absolute;
  left: 0;
  top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--accent);
}
.sec-no::after {
  content: "";
  display: block;
  width: 44px;
  height: 1px;
  background: var(--faint);
  margin-top: 12px;
}

/* registration marks at section seams */
.section::before {
  content: "+";
  position: absolute;
  top: -8px;
  left: 28px;
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
}

.rule { display: block; width: 40px; height: 2px; background: var(--accent); margin: 26px 0 30px; }

/* ---------- display type ---------- */
.txt-h1, .txt-h2 {
  font-family: var(--sans);
  font-weight: 800;
  color: var(--ink);
  margin: 0;
  line-height: 1.04;
  letter-spacing: -.02em;
}
.txt-h1 {
  font-size: clamp(2.6rem, 4.8vw, 4.3rem);
  text-transform: uppercase;
}
.txt-h2 { font-size: clamp(1.8rem, 2.9vw, 2.5rem); }
.txt-h3 {
  font-family: var(--sans);
  color: var(--ink);
  font-weight: 700;
  font-size: .98rem;
  line-height: 1.3;
  margin: 0;
}

/* ---------- body copy ---------- */
.txt-eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 20px;
}
.txt-eyebrow::before { content: "// "; color: var(--accent); }
.txt-lead { font-size: 1.08rem; line-height: 1.65; color: #4d4c46; max-width: 58ch; margin: 0 0 14px; }
.txt-body { font-size: .92rem; line-height: 1.65; color: #63625b; margin: 0 0 12px; }
.txt-small { font-size: .85rem; line-height: 1.55; color: var(--muted); margin: 0; }
.txt-li { font-size: .95rem; color: #4d4c46; }
.txt-link {
  display: inline-flex;
  align-items: center;
  margin-top: 22px;
  font-weight: 700;
  font-size: .88rem;
  color: var(--ink);
  border-bottom: 1px solid var(--faint);
  padding-bottom: 3px;
  transition: border-color .2s, color .2s;
}
.txt-link::before { content: "+"; font-family: var(--mono); color: var(--accent); margin-right: 9px; }
.txt-link:hover, a:hover > .txt-link { border-color: var(--ink); color: var(--accent); }
.txt-email { font-weight: 700; color: var(--ink); border-bottom: 1px solid var(--faint); padding-bottom: 2px; transition: border-color .2s, color .2s; }
.txt-email:hover { border-color: var(--accent); color: var(--accent); }

.btn-t {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 26px;
  margin-top: 30px;
  border: 1px solid var(--ink);
  font-family: var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: .72rem;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: background .2s, color .2s, border-color .2s;
}
.btn-t:hover { background: var(--ink); color: var(--paper); }
.btn-t.primary { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-t.primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

.chip-t {
  border: 1px solid var(--hair);
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-align: center;
  color: var(--ink);
  background: var(--canvas);
  transition: border-color .2s, color .2s;
}
.chip-t:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- imagery ---------- */
.img-frame { border: 1px solid var(--hair); overflow: hidden; position: relative; }
.img-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(.35) contrast(1.04);
  transform: scale(1.001);
  transition: filter .5s ease, transform .8s var(--ease);
}
.img-frame:hover img { filter: grayscale(0); transform: scale(1.03); }

/* ---------- header ---------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--hair);
  background: rgba(245, 244, 240, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 32px; }
.brand img { display: block; width: 232px; max-height: 52px; object-fit: contain; object-position: left center; mix-blend-mode: multiply; }
.nav { display: flex; align-items: center; gap: 34px; }
.nav a {
  position: relative;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 8px 0;
  transition: color .2s;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }
.nav a.current { color: var(--ink); }
.nav a.current::after { transform: scaleX(1); background: var(--accent); height: 2px; }
.head-cta {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
  transition: background .2s, color .2s, border-color .2s;
  white-space: nowrap;
}
.head-cta:hover { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- sections ---------- */
section { position: relative; }
.section { padding: 104px 0; border-top: 1px solid var(--hair); }
.band { background: var(--panel); }
.band-deep { background: var(--panel-deep); }

.split { display: grid; grid-template-columns: 1fr 1.15fr; gap: 72px; align-items: center; }
.split.even { grid-template-columns: 1fr 1fr; }
.split.head { grid-template-columns: 1fr 1fr; align-items: end; margin-bottom: 64px; }

/* ---------- hero (full-bleed immersive) ---------- */
.hero {
  position: relative;
  min-height: min(88vh, 860px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: var(--ink);
  border-bottom: 1px solid var(--hair);
  overflow: hidden;
}
.hero-media { position: absolute; inset: 0; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(102deg, rgba(20, 21, 17, .94) 0%, rgba(20, 21, 17, .66) 44%, rgba(20, 21, 17, .20) 74%, rgba(20, 21, 17, .42) 100%),
    linear-gradient(to top, rgba(20, 21, 17, .82) 0%, rgba(20, 21, 17, 0) 42%);
  outline: 1px solid rgba(255, 255, 255, .16);
  outline-offset: -25px;
}
.hero::before,
.hero::after {
  content: "+";
  position: absolute;
  z-index: 3;
  font-family: var(--mono);
  font-size: 16px;
  color: var(--accent);
  line-height: 1;
}
.hero::before { top: 26px; left: 26px; }
.hero::after { top: 26px; right: 26px; }
.hero-fig {
  position: absolute;
  top: 54px;
  right: 30px;
  z-index: 3;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .6);
}
.hero-inner { position: relative; z-index: 2; padding-bottom: 48px; }
.hero .txt-eyebrow { color: rgba(255, 255, 255, .72); }
.hero .txt-h1 { color: #fff; max-width: 15ch; font-size: clamp(2.9rem, 5.6vw, 4.7rem); }
.hero .txt-h1 em { font-style: normal; color: var(--accent-soft); }
.hero .rule { background: var(--accent); }
.hero .txt-lead { color: rgba(255, 255, 255, .82); max-width: 52ch; }
.hero .btn-t { border-color: rgba(255, 255, 255, .45); color: #fff; }
.hero .btn-t:hover { background: #fff; border-color: #fff; color: var(--ink); }
.hero .btn-t.primary { background: var(--paper); border-color: var(--paper); color: var(--ink); }
.hero .btn-t.primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-actions .btn-t { margin-top: 34px; }

/* compact variant for sub-pages: the statement stays with the home hero */
.hero.compact { min-height: min(62vh, 620px); }
.hero.compact .txt-h1 { font-size: clamp(2.3rem, 4.4vw, 3.7rem); max-width: 20ch; }
.hero.compact .hero-inner { padding-bottom: 40px; }

.hero-spec {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 14px 0;
  padding: 16px 0 20px;
  border-top: 1px solid rgba(255, 255, 255, .22);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .62);
}
.hero-spec span { border-left: 1px solid rgba(255, 255, 255, .25); padding: 2px 44px 2px 18px; display: flex; align-items: center; }
.hero-spec span:first-child { border-left-color: var(--accent); }
.hero-scroll { margin-left: auto; display: flex; align-items: center; gap: 12px; }
.hero-scroll::after {
  content: "";
  width: 1px;
  height: 26px;
  background: var(--accent);
  transform-origin: top;
  animation: sc 1.8s ease-in-out infinite;
}
@keyframes sc { 0%, 100% { transform: scaleY(.35); opacity: .4; } 50% { transform: scaleY(1); opacity: 1; } }

/* ---------- service ticker ---------- */
.marquee { overflow: hidden; border-bottom: 1px solid var(--hair); background: var(--canvas); }
.marquee-track { display: flex; width: max-content; animation: mq 32s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes mq { to { transform: translateX(-50%); } }
.mq-item {
  display: flex;
  align-items: center;
  padding: 26px 42px;
  border-right: 1px solid var(--hair);
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink);
  white-space: nowrap;
  transition: color .2s, background .2s;
}
.mq-item::before { content: "+"; color: var(--accent); margin-right: 20px; }
.mq-item:hover { color: var(--accent); background: var(--paper); }

/* ---------- stats strip ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  background: var(--canvas);
}
.stat {
  padding: 44px 36px 40px;
  border-right: 1px solid var(--hair);
  transition: background .25s;
}
.stat:last-child { border-right: 0; }
.stat:hover { background: var(--paper); }
.stat b {
  display: block;
  font-size: clamp(2.2rem, 3.4vw, 3.1rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1;
  color: var(--ink);
}
.stat b i { font-style: normal; color: var(--accent); }
.stat span {
  display: block;
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---------- cards (numbered, inverting) ---------- */
.cards-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: card; }
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: card; }
.cards-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; counter-reset: card; }
.card {
  display: block;
  background: var(--canvas);
  border: 1px solid var(--hair);
  counter-increment: card;
  transition: background .25s, border-color .25s, transform .25s var(--ease);
}
.card:hover { background: var(--ink); border-color: var(--ink); transform: translateY(-3px); }
.card .img-frame { border: 0; border-bottom: 1px solid var(--hair); aspect-ratio: 4 / 3; }
.card.wide-img .img-frame { aspect-ratio: 16 / 10; }
.card:hover .img-frame { border-bottom-color: #3a3b33; }
.card-body { padding: 26px; }
.card-body::before {
  content: "C·" counter(card, decimal-leading-zero);
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--accent);
  margin-bottom: 16px;
}
.card:hover .txt-h3 { color: var(--paper); }
.card:hover .txt-body { color: #b9b8b0; }
.card:hover .txt-link { color: var(--paper); border-color: #4c4d45; }
.card:hover .txt-link::before { color: var(--accent-soft); }
.card:hover .rule { background: var(--accent-soft); }

/* ---------- process steps ---------- */
.steps { border-top: 1px solid var(--hair); counter-reset: step; }
.step {
  display: grid;
  grid-template-columns: 180px 1fr 1.2fr;
  gap: 48px;
  align-items: baseline;
  padding: 34px 0;
  border-bottom: 1px solid var(--hair);
  counter-increment: step;
  transition: background .25s, padding-left .3s var(--ease);
}
.step:hover { background: var(--paper); padding-left: 18px; }
.step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--accent);
}
.step .txt-h3 { font-size: 1.12rem; text-transform: uppercase; letter-spacing: .01em; }
.step p { margin: 0; }

/* ---------- standards strip ---------- */
.standards {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px 0;
  padding: 26px 0;
  border-top: 1px solid var(--hair);
  border-bottom: 1px solid var(--hair);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}
.standards b { color: var(--ink); font-weight: 700; padding: 0 28px; border-right: 1px solid var(--hair); }
.standards b:last-of-type { border-right: 0; }
.standards .std-lead { padding-right: 28px; color: var(--muted); }
.standards .std-lead::before { content: "// "; color: var(--accent); }

/* ---------- values / tiles ---------- */
.chips-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 34px; }
.chips-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 26px; }

/* ---------- contact form ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 72px; margin-bottom: 88px; }
.form-panel {
  background: var(--canvas);
  border: 1px solid var(--hair);
  border-top: 3px solid var(--accent);
  padding: 42px;
}
.form-panel h2 { margin: 0; font-size: 1.3rem; font-weight: 800; text-transform: uppercase; letter-spacing: -.01em; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 34px; }
.field.full { grid-column: 1 / -1; }
.field label {
  display: block;
  font-family: var(--mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
.field label .opt { color: var(--faint); }
.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 50px;
  padding: 12px 16px;
  border: 1px solid var(--faint);
  border-radius: 0;
  background: var(--paper);
  font-family: var(--sans);
  font-size: .92rem;
  color: var(--ink);
  transition: border-color .2s, background .2s;
  -webkit-appearance: none;
  appearance: none;
}
.field textarea { min-height: 140px; resize: vertical; }
.field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 21px) 50%, calc(100% - 16px) 50%;
  background-size: 5px 5px;
  background-repeat: no-repeat;
}
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--ink); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); background: var(--canvas); }
.form-status { margin-top: 16px; font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }

/* ---------- sector detail ---------- */
.detail-hero { padding: 96px 0; border-bottom: 1px solid var(--hair); }
.detail-hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 80px; align-items: center; }
.detail-hero .img-frame { aspect-ratio: 4 / 3; }
.back-line {
  display: inline-block;
  margin-bottom: 30px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color .2s;
}
.back-line:hover { color: var(--accent); }
.back-line::before { content: "← "; color: var(--accent); }

.sys-list { display: grid; gap: 0; padding: 0; margin: 0; border-top: 1px solid var(--hair); counter-reset: sys; }
.sys-list li {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--hair);
  counter-increment: sys;
  font-size: .95rem;
  color: #4d4c46;
}
.sys-list li::before {
  content: counter(sys, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--accent);
}

.outcome {
  display: flex;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--hair);
  padding: 18px 20px;
  background: var(--canvas);
  transition: border-color .2s;
}
.outcome:hover { border-color: var(--accent); }
.outcome .tick {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  border: 1px solid var(--accent);
  position: relative;
}
.outcome .tick::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 2px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(40deg);
}
.outcome strong { font-size: .9rem; font-weight: 700; color: var(--ink); }
.outcomes { display: grid; gap: 12px; margin-top: 26px; }

/* ---------- dark feature band ---------- */
.dark-band { background: var(--ink); }
.dark-band .txt-h2, .dark-band .txt-h3 { color: var(--paper); }
.dark-band .txt-eyebrow { color: #a3a29a; }
.dark-band .txt-eyebrow::before { color: var(--accent-soft); }
.dark-band .txt-lead, .dark-band .txt-body { color: #b9b8b0; }
.dark-band .txt-small { color: #a3a29a; }
.dark-band .sec-no { color: var(--accent-soft); }
.dark-band .sec-no::after { background: #4c4b44; }
.dark-band .rule { background: var(--accent-soft); }
.dark-band .sys-list { border-top-color: #34352e; }
.dark-band .sys-list li { border-bottom-color: #34352e; color: #cfcec6; }
.dark-band .sys-list li::before { color: var(--accent-soft); }
.dark-band::before { color: var(--accent-soft); }

/* ---------- bottom CTA (inverted) ---------- */
.cta { padding: 96px 0; background: var(--ink); }
.cta .wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: 64px; align-items: center; }
.cta .txt-h2 { color: var(--paper); }
.cta .txt-eyebrow { color: #a3a29a; }
.cta .txt-eyebrow::before { color: var(--accent-soft); }
.cta .txt-small { color: #a3a29a; }
.cta .sec-no { color: var(--accent-soft); }
.cta .sec-no::after { background: #4c4b44; }
.cta .rule { background: var(--accent-soft); }
.cta-side { display: flex; flex-direction: column; align-items: flex-start; gap: 18px; }
.cta .btn-t { border-color: rgba(255, 255, 255, .45); color: #fff; }
.cta .btn-t:hover { background: #fff; border-color: #fff; color: var(--ink); }
.cta .btn-t.primary { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.cta .btn-t.primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.cta .txt-email { color: var(--paper); border-color: #55544d; }
.cta .txt-email:hover { border-color: var(--accent-soft); color: var(--accent-soft); }

/* ---------- footer (dark, multi-column) ---------- */
footer { background: var(--ink); border-top: 1px solid #34352e; }
.foot-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 56px;
  padding: 72px 0 56px;
}
.foot-brand img { width: 210px; max-height: 46px; object-fit: contain; object-position: left center; background: var(--paper); padding: 10px 16px; }
.foot-brand p { margin: 22px 0 0; font-size: .85rem; line-height: 1.65; color: #a3a29a; max-width: 34ch; }
.foot-col h2 {
  margin: 0 0 20px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent-soft);
  font-weight: 400;
}
.foot-col a {
  display: block;
  padding: 6px 0;
  font-size: .88rem;
  color: #cfcec6;
  transition: color .2s, padding-left .2s;
}
.foot-col a:hover { color: var(--accent-soft); padding-left: 6px; }
.foot-col .txt-email { color: var(--paper); border-color: #55544d; font-size: .88rem; overflow-wrap: anywhere; }
.foot-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid #34352e;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: #8f8e86;
}
.foot-bottom a { color: #8f8e86; }
.foot-bottom a:hover { color: var(--accent-soft); }
.foot-links { display: flex; gap: 28px; }

/* ---------- contents page ---------- */
.contents-hero { padding: 96px 0 64px; }
.page-list { border-top: 1px solid var(--hair); }
.page-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 26px 18px;
  margin: 0 -18px;
  border-bottom: 1px solid var(--hair);
  transition: background .25s;
}
.page-row:hover { background: var(--paper); }
.page-row .num { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; color: var(--accent); }
.page-row .name { font-size: 15px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.page-row .note { font-family: var(--mono); font-size: 11px; letter-spacing: .04em; color: var(--muted); }
.group-label { margin: 64px 0 0; }
.note-panel { margin: 72px 0 96px; padding: 32px 36px; background: var(--panel); border: 1px solid var(--hair); border-left: 3px solid var(--accent); }
.note-panel p { margin: 0 0 12px; font-size: 13px; color: var(--muted); }
.note-panel p:last-child { margin-bottom: 0; }

/* ---------- global refinements ---------- */
section[id] { scroll-margin-top: 92px; }

/* sticky header: compact state once scrolled */
.site-head { transition: box-shadow .3s; }
.site-head .wrap { transition: height .3s var(--ease); }
.site-head.scrolled { box-shadow: 0 12px 32px rgba(29, 30, 26, .08); }
.site-head.scrolled .wrap { height: 60px; }

/* buttons: tactile press + tracking shift */
.btn-t { position: relative; transition: background .2s, color .2s, border-color .2s, letter-spacing .25s var(--ease); }
.btn-t:hover { letter-spacing: .2em; }
.btn-t:active { transform: translateY(1px); }
.head-cta { transition: background .2s, color .2s, border-color .2s, letter-spacing .25s var(--ease); }
.head-cta:hover { letter-spacing: .2em; }

/* scroll reveal (JS-gated; content is visible without JS) */
.js .rv { opacity: 0; transform: translateY(26px); }
.js .rv.rv-in {
  opacity: 1;
  transform: none;
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: var(--rv-d, 0s);
}

/* ---------- FAQ (details/summary, no JS required) ---------- */
.faq { border-top: 1px solid var(--hair); counter-reset: qa; }
.faq details { border-bottom: 1px solid var(--hair); counter-increment: qa; }
.faq summary {
  display: grid;
  grid-template-columns: 60px 1fr 30px;
  align-items: center;
  gap: 24px;
  padding: 26px 0;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
  transition: color .2s, padding-left .3s var(--ease);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before {
  content: "Q·" counter(qa, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .16em;
  color: var(--accent);
  font-weight: 400;
}
.faq summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 18px;
  color: var(--accent);
  justify-self: end;
  transition: transform .3s var(--ease);
}
.faq summary:hover { color: var(--accent); padding-left: 12px; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .faq-a { padding: 0 84px 30px; }
.faq .faq-a p { margin: 0; }

/* ---------- legal / prose pages ---------- */
.prose { max-width: 760px; }
.prose h2 {
  margin: 48px 0 16px;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--ink);
}
.prose h2:first-of-type { margin-top: 0; }
.prose p, .prose li { font-size: .95rem; line-height: 1.7; color: #4d4c46; }
.prose p { margin: 0 0 14px; }
.prose ul { margin: 0 0 14px; padding-left: 22px; }
.prose li { margin-bottom: 6px; }

@media (max-width: 1000px) {
  .foot-main { grid-template-columns: 1fr 1fr; gap: 40px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat:nth-child(2) { border-right: 0; }
  .stat { border-bottom: 1px solid var(--hair); }
  .stat:nth-child(3), .stat:nth-child(4) { border-bottom: 0; }
  .step { grid-template-columns: 90px 1fr; gap: 24px; }
  .step p { grid-column: 2; }
}

@media (max-width: 900px) {
  :root { --rail: 0px; }
  .sec-no { position: static; display: inline-block; margin-bottom: 18px; }
  .split, .split.even, .split.head, .contact-grid, .cta .wrap, .detail-hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { min-height: 78vh; }
  .hero .txt-h1 { font-size: clamp(2.2rem, 9vw, 3rem); }
  .hero-spec .hero-scroll, .hero-fig { display: none; }
  .cards-4, .cards-3, .cards-2 { grid-template-columns: 1fr 1fr; }
  .nav { gap: 18px; overflow-x: auto; }
  .brand img { width: 180px; }
  .head-cta { display: none; }
}

@media (max-width: 620px) {
  .hero-spec span { padding: 2px 20px 2px 14px; }
  .cards-4, .cards-3, .cards-2, .chips-2, .chips-3, .form-grid, .stats, .foot-main { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 1px solid var(--hair); }
  .stat:last-child { border-bottom: 0; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .step p { grid-column: 1; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
  .marquee-track { transform: none; }
}