/* ==========================================================================
   Ken Stager — professional site
   Concept: "a claims registry — every claim has a receipt."
   Editorial paper document with a systems spine of mono provenance tags.
   ========================================================================== */

/* ---------- Fonts (self-hosted, latin subsets) ---------- */
@font-face {
  font-family: 'Fraunces';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('fonts/fraunces-600.woff2') format('woff2');
}
@font-face {
  font-family: 'Public Sans';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('fonts/public-sans.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-400.woff2') format('woff2');
}

/* ---------- Tokens ---------- */
:root {
  --paper: #FAF9F6;
  --ink: #1A2530;
  --cobalt: #2E5EAA;
  --cobalt-deep: #24497F;
  --verify-green: #1F7A5C;
  --muted: #5B6B78;
  --line: #E3DFD8;
  --ledger-bg: #F1F3F2;

  --font-display: 'Fraunces', Georgia, 'Iowan Old Style', 'Times New Roman', serif;
  --font-body: 'Public Sans', -apple-system, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;

  --measure: 62ch;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --max: 1100px;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; color-scheme: light; }
[id] { scroll-margin-top: 5.5rem; }
::selection { background: var(--cobalt); color: var(--paper); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; margin: 0 0 0.6em; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
p { margin: 0 0 1em; max-width: var(--measure); }
ul, ol, dl { margin: 0; padding: 0; }
a { color: var(--cobalt); }
a:hover { color: var(--cobalt-deep); }

:focus-visible {
  outline: 2px solid var(--cobalt);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: var(--paper);
  padding: 0.6rem 1rem;
  z-index: 100;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.skip-link:focus { left: 0; }

/* ---------- Shared mono devices ---------- */
.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--verify-green);
  letter-spacing: 0.02em;
  white-space: nowrap;
}
.eyebrow,
.section-eyebrow,
.case-scope,
.case-label,
.act-label,
.breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.section-eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 0 0 1.25rem;
  max-width: none; /* the rule spans the content column, not the text measure */
}
.section-eyebrow::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--line);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-decoration: none;
  padding: 0.7rem 1.2rem;
  border-radius: 3px;
  border: 1px solid var(--ink);
  transition: background-color 140ms ease, color 140ms ease;
}
.btn-primary {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.btn-primary:hover { background: var(--cobalt-deep); border-color: var(--cobalt-deep); color: var(--paper); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--cobalt); color: var(--cobalt-deep); }

/* ---------- Header ---------- */
.site-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.1rem var(--pad);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
/* Keep the resume/contact path reachable while reading — desktop only,
   where the header stays a single slim row. The bar spans the viewport;
   its contents stay aligned to the content column. */
@media (min-width: 881px) {
  .site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    max-width: none;
    padding-inline: max(var(--pad), calc((100% - var(--max)) / 2 + var(--pad)));
    background: rgba(250, 249, 246, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }
}
.wordmark {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.site-header nav {
  display: flex;
  gap: 1.25rem;
  flex: 1;
}
.site-header nav a {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
}
.site-header nav a:hover { color: var(--cobalt); }
.header-actions .btn { padding: 0.45rem 0.9rem; font-size: 0.78rem; }

/* ---------- Hero ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vh, 4.5rem) var(--pad) clamp(2rem, 5vh, 3.5rem);
}
.hero-copy .eyebrow { margin: 0 0 1rem; }
.hero-side { align-self: center; }
.ledger-note {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.6;
  margin: 0.9rem 0.25rem 0;
  max-width: 44ch;
}
.hero-sub { font-size: 1.1rem; color: var(--ink); }
.hero-ctas {
  display: flex;
  gap: 0.8rem;
  margin: 1.6rem 0 1.4rem;
  flex-wrap: wrap;
}
.breadcrumb { margin: 0; font-size: 0.72rem; }

/* ---------- Verification ledger (signature element) ---------- */
.ledger {
  background: var(--ledger-bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.1rem 1.25rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  box-shadow: 0 1px 0 rgba(26, 37, 48, 0.04);
}
.ledger-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  letter-spacing: 0.02em;
}
.ledger-src { color: var(--muted); font-size: 0.7rem; }
.ledger-rows { display: block; }
.ledger-row {
  display: grid;
  grid-template-columns: 9.5em 1fr auto;
  gap: 0.75em;
  padding: 0.45rem 0;
  border-bottom: 1px dashed var(--line);
  align-items: baseline;
}
.ledger-row:last-child { border-bottom: none; }
.ledger-row dt { color: var(--muted); }
.ledger-row dd { margin: 0; color: var(--ink); }
.ledger-row dd.tag { color: var(--verify-green); }

/* Ledger reveal: staggered whole-line fade, JS adds .is-armed then .is-live.
   Without JS (or with reduced motion) rows are simply visible. */
.ledger.is-armed .ledger-row { opacity: 0; transform: translateY(3px); }
.ledger.is-live .ledger-row {
  animation: ledger-line 380ms ease forwards;
  animation-delay: calc(var(--row-index, 0) * 180ms);
}
@keyframes ledger-line {
  to { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  .ledger.is-armed .ledger-row { opacity: 1; transform: none; }
  .ledger.is-live .ledger-row { animation: none; }
}

/* ---------- Proof strip ---------- */
.proof {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ledger-bg);
}
.proof-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  max-width: var(--max);
  margin: 0 auto;
  border-left: 1px solid var(--line);
  border-right: 1px solid var(--line);
}
.stat {
  background: var(--paper);
  padding: 1.6rem clamp(1.25rem, 2.5vw, 2rem);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 2.8vw, 2.3rem);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.stat-label {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.45;
}

/* ---------- Sections ---------- */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(3rem, 8vh, 5rem) var(--pad) 0;
}
.section-lede { font-size: 1.05rem; color: var(--ink); max-width: 68ch; }

/* ---------- Case studies ---------- */
.case {
  border-top: 1px solid var(--line);
  margin-top: 2.5rem;
  padding-top: 2rem;
  display: grid;
  grid-template-columns: minmax(10rem, 0.55fr) 1.45fr;
  grid-template-rows: auto auto 1fr;
  gap: 0 3rem;
}
.case-scope { grid-column: 1; margin: 0 0 0.3rem; color: var(--cobalt); }
.case h3 { grid-column: 1; margin: 0; }
.case-stack {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.7;
  color: var(--muted);
  margin: 0.7rem 0 0;
  max-width: 26ch;
}
.case-body { grid-column: 2; grid-row: 1 / span 3; }
.case-block { margin-bottom: 1.4rem; }
.case-label { margin: 0 0 0.4rem; color: var(--verify-green); }
.decision {
  margin: 1.1rem 0;
  padding: 0.8rem 1.1rem;
  border-left: 3px solid var(--cobalt);
  background: var(--ledger-bg);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--ink);
  max-width: var(--measure);
}
.measured-list {
  list-style: none;
  max-width: var(--measure);
}
.measured-list li {
  padding: 0.4rem 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.95rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
}
.measured-list li:last-child { border-bottom: none; }
.case-receipt {
  font-size: 0.9rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
  margin-bottom: 0;
}

/* ---------- Also built ---------- */
.also-built { padding-top: clamp(2.5rem, 6vh, 4rem); }
.also-list { list-style: none; max-width: 75ch; }
.also-list li {
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--line);
  font-size: 0.97rem;
  color: var(--muted);
}
.also-list li:last-child { border-bottom: none; }
.also-list strong { color: var(--ink); font-weight: 600; }

/* ---------- The Arc ---------- */
.arc-list {
  list-style: none;
  border-left: 1px solid var(--line);
  margin-top: 2rem;
}
.act {
  position: relative;
  padding: 0 0 2.2rem 2rem;
}
.act::before {
  content: '';
  position: absolute;
  left: -4px;
  top: 0.4em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cobalt);
}
.act:last-child { padding-bottom: 0.5rem; }
.act-label { margin: 0 0 0.35rem; }
.act-years { color: var(--verify-green); }
.act h3 { margin-bottom: 0.4em; }
.act p:last-child { margin-bottom: 0; }

/* ---------- Principles ---------- */
.principles-list { margin-top: 2rem; max-width: 75ch; }
.principle {
  padding: 1.1rem 0;
  border-bottom: 1px dashed var(--line);
}
.principle:last-child { border-bottom: none; }
.principle dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  margin-bottom: 0.3rem;
}
.principle dd { margin: 0; color: var(--muted); font-size: 0.97rem; max-width: var(--measure); }
.receipt {
  display: block;
  margin-top: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--verify-green);
}

/* ---------- Capabilities ---------- */
.cap-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem 3rem;
  margin-top: 2rem;
}
.cap h3 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--cobalt);
  margin-bottom: 0.45rem;
}
.cap p { font-size: 0.95rem; color: var(--muted); margin: 0; }
.cap-wide {
  grid-column: 1 / -1;
  border-top: 1px solid var(--line);
  padding-top: 1.5rem;
  margin-top: 0.5rem;
}
.cap-wide p { max-width: none; }

/* ---------- Contact ---------- */
.contact { padding-bottom: clamp(3rem, 8vh, 5rem); }
.contact h2 { max-width: 22ch; }
.contact-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin: 1.8rem 0 1.4rem;
}
.contact-fits {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--verify-green);
  margin: 0 0 0.75rem;
  overflow-wrap: anywhere;
}
.contact-lede {
  font-size: 1.05rem;
  margin: 0 0 1.5rem;
}
.contact-meta {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.4rem max(var(--pad), calc((100% - var(--max)) / 2 + var(--pad)));
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
}

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; }
  .proof-inner { grid-template-columns: 1fr 1fr; border-left: none; border-right: none; }
  .case { grid-template-columns: 1fr; }
  .case-body { grid-column: 1; grid-row: auto; margin-top: 1.2rem; }
  .case-stack { max-width: none; }
  .cap-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .proof-inner { grid-template-columns: 1fr; }
  .site-header { gap: 0.8rem; }
  .site-header nav { order: 3; flex-basis: 100%; gap: 1rem; }
  .ledger-row { grid-template-columns: minmax(8em, max-content) 1fr; }
  .ledger-row dd.tag { grid-column: 2; }
}

/* ---------- Print: the page is already a document — let it print like one ---------- */
@media print {
  .site-header, .hero-ctas, .contact-actions, .skip-link { display: none; }
  body { font-size: 10.5pt; }
  .ledger { border: 1px solid #999; }
  .case { break-inside: avoid-page; }
  .contact-meta::after {
    content: ' · ken@kenstager.com';
    font-family: var(--font-mono);
  }
}