/* ══════════════════════════════════════════════════════════════════════════
   Whitepaper stylesheet — shared by every paper under /wp-*.html
   ──────────────────────────────────────────────────────────────────────────
   Designed to be read, forwarded and printed. Three consequences:

   1. One column at a fixed measure. A CISO reads this on a laptop and their
      architect reads it on a phone; a two-column layout serves neither, and
      wide measure is what makes long documents feel like work.
   2. Diagrams are HTML and CSS, never images. They reflow on a phone, survive
      printing, are selectable, and are readable by a screen reader — none of
      which is true of the PNG a slide deck would have produced.
   3. Print is a first-class target, because the way this document actually
      travels inside an enterprise is as a PDF attached to an email.

   Palette is the site's: navy, emerald, white, grey. No fourth hue.
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  --navy:         #0b1b34;
  --navy-soft:    #12294b;
  --emerald:      #0f9d6e;
  --emerald-deep: #0a6f4e;
  --emerald-tint: #e9f7f1;
  --bg:           #f7f9fb;
  --panel:        #ffffff;
  --border:       #e2e7ee;
  --text:         #0b1b34;
  --text-dim:     #4a5a72;
  --text-faint:   #8493a8;
  --red:          #c0392b;
  --font: Inter, "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
  --measure: 42rem;
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.68;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--emerald-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--emerald-tint);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

/* ── Navigation ─────────────────────────────────────────────────────────── */
.wp-nav {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem clamp(1rem, 5vw, 3rem);
  background: rgba(255,255,255,0.93);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.wp-brand { font-weight: 700; letter-spacing: -0.02em; color: var(--navy); }
.wp-nav-right { display: flex; align-items: center; gap: 1.2rem; font-size: 0.9rem; }
.wp-print {
  font: inherit; font-size: 0.88rem;
  border: 1px solid var(--border); background: var(--panel);
  color: var(--text-dim);
  padding: 0.35rem 0.8rem; border-radius: 6px; cursor: pointer;
}
.wp-print:hover { border-color: var(--emerald); color: var(--emerald-deep); }

/* ── Cover ──────────────────────────────────────────────────────────────── */
.wp-cover {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(3rem, 8vh, 5.5rem) clamp(1rem, 5vw, 0rem) 2.5rem;
}
.wp-eyebrow {
  font-family: var(--mono);
  font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--emerald-deep);
}
.wp-cover h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.08; letter-spacing: -0.028em;
  margin: 0.9rem 0 1rem;
  text-wrap: balance;
}
.wp-tagline {
  font-size: 1.2rem; color: var(--text-dim); line-height: 1.5;
  border-left: 3px solid var(--emerald);
  padding-left: 1rem;
}
.wp-meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: 1rem 1.5rem;
  margin: 2.2rem 0 1.8rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
}
.wp-meta dt {
  font-family: var(--mono);
  font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 0.25rem;
}
.wp-meta dd { font-size: 0.92rem; }
.wp-note {
  font-size: 0.94rem; color: var(--text-dim);
  background: var(--panel);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 1.1rem 1.2rem;
}

/* ── Body ───────────────────────────────────────────────────────────────── */
.wp-body { max-width: var(--measure); margin: 0 auto; padding: 0 clamp(1rem, 5vw, 0rem) 4rem; }

.wp-toc {
  background: var(--panel);
  border: 1px solid var(--border); border-radius: 12px;
  padding: 1.3rem 1.5rem;
  margin-bottom: 3rem;
}
.wp-toc-title {
  font-family: var(--mono);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-faint); margin-bottom: 0.7rem;
}
.wp-toc ol { margin: 0; padding-left: 1.3rem; }
.wp-toc li { margin: 0.3rem 0; }
.wp-toc a { color: var(--text); }

section { margin: 0 0 3.4rem; scroll-margin-top: 4.5rem; }
h2 {
  font-size: clamp(1.5rem, 3vw, 1.95rem);
  letter-spacing: -0.022em; line-height: 1.2;
  margin: 0 0 1.2rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--emerald);
}
h3 {
  font-size: 1.12rem; letter-spacing: -0.012em;
  margin: 2rem 0 0.6rem;
}
p { margin: 0 0 1.1rem; }
.wp-lead { font-size: 1.1rem; color: var(--text-dim); }
em { color: var(--text); }

.wp-list, .wp-args, .wp-questions, .wp-steps { margin: 0 0 1.4rem; padding-left: 1.4rem; }
.wp-list li, .wp-args li, .wp-questions li { margin-bottom: 0.7rem; }
.wp-steps { list-style: none; padding-left: 0; counter-reset: step; }
.wp-steps > li {
  counter-increment: step;
  position: relative;
  padding-left: 2.6rem;
  margin-bottom: 1.6rem;
}
.wp-steps > li::before {
  content: counter(step);
  position: absolute; left: 0; top: 0.1rem;
  width: 1.8rem; height: 1.8rem;
  display: grid; place-items: center;
  border-radius: 50%;
  background: var(--emerald); color: #fff;
  font-family: var(--mono); font-size: 0.82rem; font-weight: 600;
}
.wp-steps h3 { margin: 0 0 0.35rem; }

/* ── Callouts ───────────────────────────────────────────────────────────── */
.wp-callout {
  border-left: 3px solid var(--emerald);
  background: var(--emerald-tint);
  padding: 1.1rem 1.3rem;
  border-radius: 0 10px 10px 0;
  margin: 1.8rem 0;
}
.wp-callout p { margin: 0; }
/* A quieter variant for the uncomfortable observations, where emphasis would
   read as gloating rather than as argument. */
.wp-callout-quiet {
  background: var(--panel);
  border-left-color: var(--navy);
  color: var(--text-dim);
  font-style: italic;
}
.wp-measure {
  background: var(--panel);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin: 1.2rem 0 1.8rem;
}
.wp-measure-title {
  font-family: var(--mono);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--emerald-deep); margin-bottom: 0.4rem;
}
.wp-measure p:last-child { margin: 0; font-size: 0.95rem; }

/* ── Tables ─────────────────────────────────────────────────────────────── */
.wp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.2rem 0 1.8rem;
  /* Wide tables scroll inside their own box; the page never scrolls sideways. */
  display: block; overflow-x: auto; white-space: nowrap;
}
.wp-table thead th {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-faint);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem 0.9rem 0.5rem 0;
}
.wp-table td {
  padding: 0.6rem 0.9rem 0.6rem 0;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.wp-table-tools td { white-space: normal; min-width: 12rem; }
.wp-row-hot td { background: var(--emerald-tint); font-weight: 600; }

/* ── Diagrams ───────────────────────────────────────────────────────────── */
.wp-diagram {
  margin: 2rem 0;
  padding: 1.5rem 1.3rem 1.2rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.wp-diagram-title {
  font-family: var(--mono);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-faint);
  text-align: center; margin-bottom: 1.2rem;
}
.wp-diagram-cap {
  font-size: 0.88rem; color: var(--text-dim);
  margin: 1.1rem 0 0; padding-top: 0.9rem;
  border-top: 1px solid var(--border);
}

.wp-flow { display: grid; justify-items: center; gap: 0; }
.wp-flow-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.4rem; }
.wp-flow-row span {
  font-family: var(--mono); font-size: 0.78rem;
  padding: 0.4rem 0.75rem;
  border: 1px solid var(--border); border-radius: 7px;
  background: var(--bg); color: var(--text-dim);
}
.wp-flow-arrow { color: var(--emerald); font-size: 1.2rem; line-height: 1; margin: 0.55rem 0; }
.wp-flow-hub  { border-color: var(--emerald) !important; color: var(--text) !important; font-weight: 600; }
.wp-flow-good { background: var(--emerald) !important; border-color: var(--emerald) !important; color: #fff !important; font-weight: 600; }
.wp-flow-fail { border-color: var(--red) !important; color: var(--red) !important; font-weight: 600; }
.wp-flow-bad .wp-flow-arrow { color: var(--text-faint); }

.wp-chain { display: grid; gap: 0; }
.wp-chain-step {
  display: grid; grid-template-columns: 12rem 1fr;
  gap: 1rem; align-items: baseline;
  padding: 0.65rem 0;
  border-bottom: 1px dashed var(--border);
}
.wp-chain-tight .wp-chain-step { padding: 0.5rem 0; }
.wp-chain-n {
  font-family: var(--mono); font-size: 0.8rem; font-weight: 600;
  color: var(--emerald-deep);
}
.wp-chain-step > span:last-child { font-size: 0.92rem; color: var(--text-dim); }
.wp-chain-out { border-bottom: none; border-top: 2px solid var(--emerald); margin-top: 0.3rem; padding-top: 0.8rem; }
.wp-chain-out .wp-chain-n { color: var(--navy); font-size: 0.92rem; }
.wp-chain-out > span:last-child { color: var(--text); font-weight: 500; }

/* ── ESCM levels ────────────────────────────────────────────────────────── */
.wp-levels { display: grid; gap: 1rem; margin: 1.8rem 0 2rem; }
.wp-level {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: 0 12px 12px 0;
  padding: 1.2rem 1.4rem;
}
/* The border deepens toward emerald as the levels rise, so the progression is
   legible before a word is read. */
.wp-level:nth-child(2) { border-left-color: #cfd8e3; }
.wp-level:nth-child(3) { border-left-color: #a7c4b8; }
.wp-level:nth-child(4) { border-left-color: #6fae94; }
.wp-level:nth-child(5) { border-left-color: #3a9d78; }
.wp-level-top { border-left-color: var(--emerald); background: var(--emerald-tint); }
.wp-level-n {
  font-family: var(--mono);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-faint);
}
.wp-level h3 { margin: 0.2rem 0 0.4rem; font-size: 1.2rem; }
.wp-level-cap { font-weight: 600; margin-bottom: 0.7rem; }
.wp-level p { font-size: 0.93rem; margin-bottom: 0.45rem; }
.wp-level-test { color: var(--text-dim); }
.wp-level-symptom { color: var(--text-dim); font-style: italic; }

/* ── Product section, visually separated so the reader knows the pitch starts ── */
.wp-product {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.8rem 1.6rem 1.4rem;
}
.wp-product h2 { border-bottom-color: var(--navy); }

.wp-cta {
  margin-top: 1.8rem; padding-top: 1.4rem;
  border-top: 1px solid var(--border);
  text-align: center;
}
.wp-cta p:first-child { font-size: 1.25rem; letter-spacing: -0.02em; }
.wp-btn {
  display: inline-block;
  margin: 0.6rem 0.35rem 0;
  padding: 0.7rem 1.4rem;
  background: var(--emerald); color: #fff;
  border-radius: 8px; font-weight: 600; font-size: 0.95rem;
}
.wp-btn:hover { background: var(--emerald-deep); text-decoration: none; }
.wp-btn-ghost { background: transparent; color: var(--text-dim); border: 1px solid var(--border); }
.wp-btn-ghost:hover { background: transparent; border-color: var(--emerald); color: var(--emerald-deep); }

.wp-footer {
  max-width: var(--measure); margin: 0 auto;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
  font-size: 0.86rem; color: var(--text-faint);
}
.wp-footer-note { margin-top: 0.4rem; }

/* ── Index page ─────────────────────────────────────────────────────────── */
.wp-index { display: grid; gap: 0.9rem; margin: 2rem 0 3rem; }
.wp-card {
  display: block;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.3rem 1.4rem;
  color: inherit;
}
.wp-card:hover { border-color: var(--emerald); text-decoration: none; }
.wp-card-n {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em;
  color: var(--text-faint);
}
.wp-card h2 {
  font-size: 1.18rem; border: none; padding: 0; margin: 0.25rem 0 0.4rem;
  letter-spacing: -0.015em;
}
.wp-card p { font-size: 0.94rem; color: var(--text-dim); margin: 0; }
.wp-card-meta {
  display: flex; flex-wrap: wrap; gap: 0.9rem;
  margin-top: 0.8rem;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text-faint);
}
.wp-status-live { color: var(--emerald-deep); font-weight: 600; }
.wp-card-soon { opacity: 0.72; }
.wp-card-soon:hover { border-color: var(--border); cursor: default; }

@media (max-width: 640px) {
  body { font-size: 16px; }
  .wp-chain-step { grid-template-columns: 1fr; gap: 0.15rem; }
  .wp-nav-right { gap: 0.8rem; font-size: 0.82rem; }
}

/* ── Print ──────────────────────────────────────────────────────────────── */
@media print {
  :root { --bg: #fff; }
  body { font-size: 10.5pt; line-height: 1.5; }
  .wp-nav, .wp-print, .wp-cta, .wp-toc { display: none; }
  .wp-cover { padding-top: 0; page-break-after: always; }
  .wp-body { max-width: none; padding: 0; }
  section { page-break-inside: auto; margin-bottom: 1.6rem; }
  h2 { page-break-after: avoid; font-size: 15pt; }
  h3 { page-break-after: avoid; }
  /* Diagrams and level cards must never be split across a page break — half a
     diagram is worse than a diagram on the next page. */
  .wp-diagram, .wp-level, .wp-measure, .wp-callout { page-break-inside: avoid; }
  .wp-table { display: table; white-space: normal; font-size: 9pt; }
  .wp-table td, .wp-table-tools td { white-space: normal; }
  a { color: var(--text); text-decoration: none; }
  /* In print, a link is useless unless its destination is visible. */
  .wp-body a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 8pt; color: #666; }
}

/* Page-owned controls, distinct from the site chrome above them. */
.wp-cover-tools { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem; margin: 1.6rem 0 0; }