/* Data Plane Works v2 — trust-first editorial minimalism.
   Design read: B2B consultancy for government buyers and commercial
   engineering leaders. Plain-spoken, restrained. Dials 4/2/4.
   Locks: one accent (#1D4ED8). All-sharp corners (0 radius). Light theme only. */

:root {
  --paper: #F7F7F4;
  --ink: #1C1917;
  --muted: #57534E;
  --faint: #8A8580;
  --line: #E7E5E4;
  --panel: #FFFFFF;
  --accent: #1D4ED8;
  --accent-hover: #1E40AF;
  --maxw: 1200px;
  --pad: clamp(20px, 4vw, 40px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Cabinet Grotesk", "Avenir Next", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent); color: #fff; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- type ---------- */
.display {
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.04;
  text-wrap: balance;
}
h1.display { font-size: clamp(2.6rem, 5.6vw, 4.4rem); }
h2.display { font-size: clamp(1.7rem, 3.2vw, 2.4rem); letter-spacing: -0.02em; }

.body-copy { font-size: 1.0625rem; line-height: 1.7; color: var(--muted); max-width: 65ch; }
.body-copy strong { color: var(--ink); font-weight: 600; }

.mono {
  font-family: ui-monospace, "SF Mono", "Cascadia Code", Menlo, Consolas, monospace;
  font-variant-numeric: tabular-nums;
}
.eyebrow {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
}

/* ---------- layout ---------- */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }
section.block { padding-top: clamp(64px, 9vw, 120px); padding-bottom: clamp(64px, 9vw, 120px); }

/* ---------- nav ---------- */
.nav { border-bottom: 1px solid var(--line); background: var(--paper); position: sticky; top: 0; z-index: 50; }
.nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad);
  height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.wordmark { font-weight: 800; letter-spacing: -0.02em; font-size: 1.05rem; color: var(--ink); white-space: nowrap; }
.wordmark:hover { text-decoration: none; }
.wordmark .dpw-dot { color: var(--accent); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 0.95rem; font-weight: 500; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); text-decoration: none; }
.nav-links a.active { color: var(--ink); font-weight: 600; }
.nav-cta {
  background: var(--ink); color: #fff !important; font-weight: 600;
  padding: 10px 20px; font-size: 0.9rem;
}
.nav-cta:hover { background: var(--accent); text-decoration: none; }
@media (max-width: 820px) { .nav-links a:not(.nav-cta) { display: none; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-block; background: var(--accent); color: #fff;
  font-weight: 600; font-size: 1rem; padding: 15px 32px;
  border: none; cursor: pointer; white-space: nowrap;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; color: #fff; }
.btn:active { transform: translateY(1px); }
.btn-dark { background: var(--ink); }
.btn-dark:hover { background: var(--accent); }
.textlink { font-weight: 600; color: var(--accent); }

/* ---------- hero ---------- */
.hero { padding-top: clamp(48px, 7vw, 96px); padding-bottom: clamp(56px, 8vw, 110px); }
.hero .eyebrow { margin-bottom: 26px; display: block; }
.hero h1 { max-width: 14ch; margin-bottom: 24px; }
.hero .sub { font-size: 1.2rem; line-height: 1.6; color: var(--muted); max-width: 44ch; margin-bottom: 36px; }
.hero-cta-row { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }

/* ---------- service index (numbered rows) ---------- */
.index-head { margin-bottom: 8px; }
.index-head h2 { margin-bottom: 14px; }
.svc { border-top: 1px solid var(--line); }
.svc:last-child { border-bottom: 1px solid var(--line); }
.svc-row {
  display: grid; grid-template-columns: 72px 1fr auto; gap: 24px;
  padding: 34px 0; align-items: baseline; text-decoration: none; color: inherit;
}
a.svc-row:hover { text-decoration: none; background: rgba(29,78,216,0.045); }
.svc-num { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.85rem; color: var(--faint); }
.svc-row h3 { font-size: 1.35rem; font-weight: 600; letter-spacing: -0.015em; margin-bottom: 8px; color: var(--ink); }
.svc-row p { color: var(--muted); font-size: 1rem; max-width: 62ch; }
.svc-tags { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.78rem; color: var(--faint); text-align: right; line-height: 1.9; white-space: nowrap; }
@media (max-width: 760px) {
  .svc-row { grid-template-columns: 48px 1fr; }
  .svc-tags { display: none; }
}

/* ---------- principal panel ---------- */
.panel { background: var(--panel); border: 1px solid var(--line); padding: clamp(32px, 5vw, 64px); }
.panel-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 72px); }
@media (max-width: 860px) { .panel-grid { grid-template-columns: 1fr; } }
.panel h2 { margin-bottom: 20px; }
.stat { padding: 18px 0; border-top: 1px solid var(--line); }
.stat:first-of-type { border-top: none; }
.stat .n { font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.stat .n em { font-style: normal; color: var(--accent); }
.stat .d { color: var(--muted); font-size: 0.95rem; margin-top: 4px; }
.fineprint { margin-top: 26px; font-size: 0.88rem; color: var(--faint); max-width: 65ch; border-top: 1px solid var(--line); padding-top: 18px; }

/* ---------- image band ---------- */
.band { padding-top: 0; padding-bottom: 0; }
.band figure { margin: 0; }
.band img { display: block; width: 100%; height: clamp(280px, 42vw, 520px); object-fit: cover; filter: saturate(0.72) contrast(1.04); }
.band figcaption {
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.78rem;
  color: var(--faint); padding: 12px 0 0;
}

/* ---------- how we work (sticky split) ---------- */
.work-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(32px, 6vw, 96px); align-items: start; }
@media (max-width: 860px) { .work-grid { grid-template-columns: 1fr; } }
.work-sticky { position: sticky; top: 120px; }
@media (max-width: 860px) { .work-sticky { position: static; } }
.work-sticky h2 { margin-bottom: 16px; }
.step { padding: 26px 0; border-top: 1px solid var(--line); }
.step:last-child { border-bottom: 1px solid var(--line); }
.step .k { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.8rem; color: var(--accent); margin-bottom: 8px; }
.step h3 { font-size: 1.2rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 8px; }
.step p { color: var(--muted); max-width: 58ch; }

/* ---------- government ---------- */
.gov { border-top: 1px solid var(--line); }
.gov h2 { margin-bottom: 14px; }
.gov .ids { margin-top: 26px; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.85rem; color: var(--faint); }
.gov .ids span { margin-right: 28px; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); padding: 48px 0 40px; }
.foot-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 40px; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-grid h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--faint); font-weight: 600; margin-bottom: 14px; }
.foot-grid p, .foot-grid a { color: var(--muted); font-size: 0.95rem; }
.foot-grid a { display: block; margin-bottom: 8px; }
.foot-base { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 0.82rem; color: var(--faint); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* ---------- capability statement (formal doc) ---------- */
.doc { background: var(--panel); border: 1px solid var(--line); padding: clamp(28px, 5vw, 60px); }
.doc h3 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--faint); font-weight: 600; margin: 38px 0 6px; }
.doc h3:first-child { margin-top: 0; }
.doc dl { display: grid; grid-template-columns: 200px 1fr; }
.doc dl > div { display: contents; }
.doc dt { color: var(--muted); padding: 10px 0; border-top: 1px solid var(--line); font-size: 0.95rem; }
.doc dd { font-weight: 600; padding: 10px 0 10px 24px; border-top: 1px solid var(--line); font-size: 0.95rem; }
.doc ul { list-style: none; }
.doc ul li { padding: 10px 0; border-top: 1px solid var(--line); font-size: 0.98rem; color: var(--ink); }
.doc ul li span.k { color: var(--faint); font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.82rem; margin-right: 12px; }
@media (max-width: 640px) { .doc dl { grid-template-columns: 1fr; } .doc dd { padding-left: 0; border-top: none; padding-top: 0; } }

/* ---------- service detail (services page) ---------- */
.svc-detail { padding: clamp(40px, 6vw, 72px) 0; border-top: 1px solid var(--line); }
.svc-detail:first-of-type { border-top: none; }
.svc-detail .num { font-family: ui-monospace, Menlo, Consolas, monospace; color: var(--faint); font-size: 0.85rem; margin-bottom: 12px; display: block; }
.svc-detail h2 { margin-bottom: 16px; max-width: 20ch; }
.svc-detail .body-copy { margin-bottom: 24px; }
.inline-list { list-style: none; max-width: 70ch; }
.inline-list li { padding: 9px 0 9px 22px; position: relative; border-top: 1px solid var(--line); color: var(--ink); font-size: 0.98rem; }
.inline-list li::before { content: ""; position: absolute; left: 2px; top: 18px; width: 7px; height: 7px; background: var(--accent); }

/* ---------- contact rows ---------- */
.contact-rows { border-top: 1px solid var(--line); margin-top: 8px; }
.crow { display: grid; grid-template-columns: 180px 1fr; gap: 24px; padding: 22px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.crow .k { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.82rem; color: var(--faint); text-transform: uppercase; letter-spacing: 0.12em; }
.crow .v { font-size: 1.15rem; font-weight: 500; }
.crow .v small { display: block; font-size: 0.92rem; color: var(--muted); font-weight: 400; margin-top: 4px; }
@media (max-width: 640px) { .crow { grid-template-columns: 1fr; gap: 6px; } }

/* ---------- reveal motion (subtle, respects reduced motion) ---------- */
.rv { opacity: 0; transform: translateY(14px); transition: opacity 0.55s ease, transform 0.55s ease; }
.rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .rv { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- misc ---------- */
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: var(--ink); color: #fff; padding: 10px 16px; z-index: 100; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.prose-narrow { max-width: 68ch; }
.spacer-sm { height: 24px; }

/* ---------- v3: credentials band ---------- */
.creds { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--panel); }
.creds-inner { padding-top: 34px; padding-bottom: 34px; }
.creds-label { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); margin-bottom: 18px; display: block; }
.cred { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 13px 0; border-top: 1px solid var(--line); }
.cred .t { font-weight: 600; font-size: 1rem; }
.cred .m { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.82rem; color: var(--faint); white-space: nowrap; }
@media (max-width: 640px) { .cred .m { display: none; } }

/* ---------- v3: tech strip ---------- */
.techstrip { border-top: 1px solid var(--line); }
.techstrip .stack { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.95rem; line-height: 2.2; color: var(--muted); max-width: 88ch; margin-top: 20px; }
.techstrip .stack strong { color: var(--accent); font-weight: 600; }

/* ---------- v3: stagger ---------- */
.rv[data-d="1"] { transition-delay: 0.08s; }
.rv[data-d="2"] { transition-delay: 0.16s; }
.rv[data-d="3"] { transition-delay: 0.24s; }
.rv[data-d="4"] { transition-delay: 0.32s; }
@media (prefers-reduced-motion: reduce) { .rv[data-d] { transition-delay: 0s; } }

/* ---------- v3.1 hierarchy pass ---------- */
.hero { padding: 120px 0 88px; }
.hero h1 { font-size: clamp(2.8rem, 1.6rem + 4.5vw, 4.25rem); }
.block { padding: 112px 0; }
.body-copy { color: #44403C; }
.svc-row h3 { font-size: 1.5rem; }
.creds-label { color: var(--accent); }

/* dark principal panel: the mid-page anchor */
.panel { background: var(--ink); border: none; color: var(--paper); padding: 60px; }
.panel h2 { color: var(--paper); }
.panel .body-copy { color: #D6D3D1; }
.panel .fineprint { color: #A8A29E; border-color: #44403C; }
.stat { border-color: #44403C; }
.stat .n { color: var(--paper); font-size: 3rem; }
.stat .n em { color: #9DB8F5; font-style: normal; }
.stat .d { color: #A8A29E; }

/* dark footer: anchors the page bottom */
footer { background: var(--ink); border-top: none; margin-top: 0; color: #D6D3D1; }
footer h4 { color: var(--paper); }
footer a { color: #D6D3D1; }
footer a:hover { color: #fff; }
.foot-base { border-color: #44403C; color: #A8A29E; }
@media (max-width: 640px) { .panel { padding: 36px 24px; } .stat .n { font-size: 2.4rem; } }

/* ---------- capability statement ---------- */
.cap-hero { background: var(--accent); color: #fff; padding: 72px 0 64px; }
.cap-hero-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: end; }
.cap-eyebrow { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: rgba(255,255,255,0.75); display: block; margin-bottom: 16px; }
.cap-hero h1 { color: #fff; font-size: clamp(2.4rem, 1.6rem + 3.5vw, 3.6rem); }
.cap-sub { color: rgba(255,255,255,0.85); font-size: 1.15rem; margin-top: 12px; }
.cap-ids { margin: 0; display: grid; gap: 14px; }
.cap-ids > div { display: flex; justify-content: space-between; gap: 16px; border-top: 1px solid rgba(255,255,255,0.25); padding-top: 10px; }
.cap-ids dt { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.78rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.7); }
.cap-ids dd { margin: 0; font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.95rem; font-weight: 600; text-align: right; }

.cap-block { padding: 72px 0; }
.cap-block h2 { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 8px; padding-top: 16px; border-top: 4px solid var(--accent); display: inline-block; }
.cap-tint { background: var(--panel); }
.cap-lede { font-size: 1.1rem; color: #44403C; max-width: 68ch; margin: 12px 0 32px; }
.cap-note { margin-top: 20px; font-weight: 600; color: var(--accent); }

.cap-table { margin-top: 28px; border-top: 2px solid var(--ink); }
.cap-row { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.cap-row span { color: var(--muted); }
.cap-row strong { font-weight: 600; }
.cap-row a { color: var(--accent); }

.comp-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 48px; margin-top: 28px; }
.comp { border-left: 4px solid var(--accent); padding: 4px 0 4px 20px; margin-bottom: 32px; }
.comp h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 6px; }
.comp p { color: #44403C; line-height: 1.6; }

.perf { margin-top: 28px; display: grid; gap: 28px; }
.perf-item { border: 1px solid var(--line); padding: 28px 32px; background: #fff; }
.perf-item h3 { font-size: 1.3rem; font-weight: 700; color: var(--accent); margin-bottom: 8px; }
.perf-item p { color: #44403C; line-height: 1.65; }

.diff-list { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 18px; max-width: 78ch; }
.diff-list li { font-size: 1.1rem; line-height: 1.6; color: #44403C; padding-left: 28px; position: relative; }
.diff-list li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 12px; height: 12px; background: var(--accent); }
.diff-list strong { color: var(--ink); }

.codes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 28px; }
.codes-label { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.85rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); margin-bottom: 16px; }
.psc-note { text-transform: none; letter-spacing: 0; font-size: 0.75rem; }
.code-row { display: flex; gap: 16px; align-items: baseline; padding: 12px 0; border-top: 1px solid var(--line); }
.code-chip { font-family: ui-monospace, Menlo, Consolas, monospace; font-weight: 700; font-size: 0.9rem; background: var(--accent); color: #fff; padding: 4px 10px; white-space: nowrap; }
.code-row em { color: var(--faint); font-style: normal; font-size: 0.9rem; }

.cap-contact { background: var(--ink); color: var(--paper); padding: 72px 0; }
.cap-contact-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: center; }
.cap-contact h2 { color: #fff; font-size: 2rem; letter-spacing: -0.02em; margin-bottom: 10px; }
.cap-contact p { color: #A8A29E; }
.cap-contact-links { display: grid; gap: 12px; justify-items: start; }
.cap-contact-links a:not(.btn) { color: #D6D3D1; font-size: 1.1rem; }
.cap-contact-links a:not(.btn):hover { color: #fff; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--paper); color: var(--ink); }

@media (max-width: 860px) {
  .cap-hero-grid, .codes-grid, .cap-contact-grid { grid-template-columns: 1fr; }
  .comp-grid { grid-template-columns: 1fr; }
  .cap-row { grid-template-columns: 140px 1fr; }
}