/* ==============================================================
   Daniel Sappel — Reference Manual
   Inspired by makingsoftware.com — book-like editorial layout
   Bone canvas · Charcoal ink · Serif/Mono mix · Margin notes
   Responsive: 360 / 480 / 720 / 960 / 1280px
   ============================================================== */

/* ---------- Tokens ---------- */
:root {
  /* Bone / cream / paper */
  --bg:        #F1ECDF;
  --bg-2:      #EAE3D2;
  --bg-3:      #E2D9C2;
  --paper:     #F8F4E9;

  /* Ink — warm charcoal */
  --ink:       #1A1614;
  --ink-2:     #3D3733;
  --ink-soft:  #635B53;
  --ink-mute:  #7A7268;
  --ink-dim:   #B5AD9F;

  /* Single accent — signal orange */
  --acc:       #FF4E1A;
  --acc-text:  #B0300A;
  --acc-soft:  rgba(255, 78, 26, 0.10);

  /* Borders — hairline */
  --line:      rgba(26, 22, 20, 0.18);
  --line-2:    rgba(26, 22, 20, 0.36);

  /* Type stacks — system only */
  --f-serif: ui-serif, "New York", "Iowan Old Style",
             "Apple Garamond", Garamond, "Times New Roman", Georgia, serif;
  --f-sans:  -apple-system, BlinkMacSystemFont, "SF Pro Text",
             "Helvetica Neue", Helvetica, Arial, sans-serif;
  --f-mono:  ui-monospace, "SF Mono", "JetBrains Mono",
             Menlo, Consolas, "Courier New", monospace;

  /* Layout */
  --max:     1440px;
  --gutter:  clamp(20px, 4vw, 64px);

  /* Motion */
  --ease:    cubic-bezier(.2, .7, .2, 1);
  --ease-o:  cubic-bezier(.16, 1, .3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-serif);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "kern", "liga", "tnum", "onum";
  overflow-x: hidden;
}

/* Subtle paper texture */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 15% 5%, rgba(26, 22, 20, 0.02) 0%, transparent 50%),
    radial-gradient(circle at 85% 95%, rgba(26, 22, 20, 0.025) 0%, transparent 60%);
  z-index: -1;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--acc-text); color: var(--bg); }
abbr { border-bottom: 1px dotted var(--ink-mute); cursor: help; text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip {
  position: absolute;
  left: -9999px; top: 8px;
  background: var(--ink);
  color: var(--bg);
  padding: 12px 16px;
  font-family: var(--f-mono);
  font-size: 12px;
  z-index: 200;
}
.skip:focus { left: 8px; }

.wrap {
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.muted { color: var(--ink-mute); }

/* ============== TOPBAR ============== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--ink);
}

.topbar-grid {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding-block: 14px;
  font-family: var(--f-mono);
  font-size: 12px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}
.logo-mark {
  display: inline-grid;
  place-items: center;
  width: 32px; height: 32px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 17px;
  border-radius: 3px;
}
.logo-label {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  display: none;
}
@media (min-width: 480px) { .logo-label { display: inline; } }

.nav-main {
  display: none;
  justify-self: center;
  align-items: center;
  gap: 24px;
  font-size: 12px;
  letter-spacing: 0.04em;
}
.nav-main a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding-block: 6px;
  color: var(--ink-soft);
  transition: color 200ms var(--ease);
  position: relative;
}
.nav-main a:hover { color: var(--ink); }
.nav-main .nav-chap {
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.1em;
}
.nav-main a:hover::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: var(--acc-text);
}
@media (min-width: 1024px) { .nav-main { display: inline-flex; } }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 14px;
}
.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--ink);
  padding: 3px 6px;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.lang-switch a {
  padding: 8px 10px;
  min-width: 24px;
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-mute);
  transition: color 200ms var(--ease);
}
.lang-switch a:hover { color: var(--ink); }
.lang-switch a.is-active { color: var(--bg); background: var(--ink); }
.lang-switch span { color: var(--ink-mute); }

/* Reading progress */
.progress {
  position: absolute;
  inset: auto 0 -1px 0;
  height: 1px;
  background: transparent;
  overflow: hidden;
}
.progress-bar {
  width: 0%;
  height: 100%;
  background: var(--acc);
  transition: width 100ms linear;
}

@media (prefers-reduced-motion: reduce) {
  .bpmn-token,
  .vert-token {
    display: none !important;
  }
}

/* ============== COVER ============== */
.cover {
  border-bottom: 1px solid var(--ink);
}

.cover-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(40px, 5vw, 64px);
  padding-block: clamp(48px, 6vw, 96px) clamp(40px, 5vw, 80px);
}
@media (min-width: 960px) {
  .cover-grid {
    grid-template-columns: 200px 1fr;
    gap: clamp(60px, 8vw, 120px);
  }
}

.cover-meta {
  font-family: var(--f-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--ink);
  letter-spacing: 0.02em;
  border-top: 1px solid var(--ink);
  padding-top: 16px;
}
.cover-meta p { margin: 0 0 12px; }
.cover-meta p:last-child { margin-bottom: 0; }
.meta-label {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 16px;
}
.cover-meta p:first-of-type { margin-top: 0; }

.cover-main {
  min-width: 0;
}

.cover-eyebrow {
  margin: 0 0 16px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* MASSIVE display title */
.cover-title {
  margin: 0 0 clamp(32px, 4vw, 56px);
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(56px, 12vw, 180px);
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--ink);
}
.cover-title .ct-line { display: block; }
.cover-title .ct-em {
  font-style: italic;
  font-family: var(--f-serif);
}
.cover-title .ct-acc { color: var(--acc-text); }

.cover-abstract {
  font-family: var(--f-serif);
  font-size: clamp(18px, 1.7vw, 22px);
  line-height: 1.5;
  color: var(--ink-2);
  margin: 0 0 36px;
  max-width: 60ch;
}
.cover-abstract em {
  font-style: italic;
  color: var(--ink);
}

.cover-cta {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 14px 22px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid var(--ink);
  transition: background 240ms var(--ease), border-color 240ms var(--ease);
  min-height: 48px;
}
.btn-arr {
  display: inline-flex;
  width: 24px; height: 24px;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  transition: transform 320ms var(--ease);
}
.btn:hover { background: var(--acc-text); border-color: var(--acc-text); }
.btn:hover .btn-arr { transform: translateX(3px); }

.link-u {
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink);
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  transition: color 240ms var(--ease), border-color 240ms var(--ease);
  min-height: 24px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.link-u:hover { color: var(--acc-text); border-bottom-color: var(--acc-text); }

/* TOC bar */
.toc {
  border-top: 1px solid var(--ink);
  background: var(--bg-2);
}
.toc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  padding-block: 18px;
  align-items: center;
}
@media (min-width: 720px) {
  .toc-grid { grid-template-columns: 100px 1fr; gap: 32px; }
}
.toc-label {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.toc-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 16px 28px;
  font-family: var(--f-mono);
  font-size: 12px;
}
.toc-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  color: var(--ink-soft);
  transition: color 200ms var(--ease);
}
.toc-list a span {
  color: var(--ink-mute);
  font-size: 10px;
}
.toc-list a:hover { color: var(--acc-text); }

/* ============== CHAPTER GRID (Margin Notes Layout) ============== */
.chapter {
  border-bottom: 1px solid var(--ink);
}
.chapter-alt { background: var(--bg-2); }

.chapter-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 40px);
  padding-block: clamp(56px, 8vw, 120px);
}
@media (min-width: 960px) {
  .chapter-grid {
    grid-template-columns: 200px 1fr;
    gap: clamp(48px, 6vw, 100px);
  }
}

/* Margin column (book-style marginalia) */
.margin {
  font-family: var(--f-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--ink-soft);
  padding-top: 4px;
  border-top: 1px solid var(--ink);
  position: relative;
}
@media (min-width: 960px) {
  .margin {
    position: sticky;
    top: 80px;
    align-self: start;
    max-height: 200px;
  }
}
.margin-num {
  margin: 0 0 2px;
  font-family: var(--f-serif);
  font-size: 36px;
  line-height: 1;
  font-weight: 400;
  color: var(--ink);
  font-feature-settings: "onum";
}
.margin-label {
  margin: 0 0 12px;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.margin-note {
  margin: 0;
  color: var(--ink-soft);
  max-width: 22ch;
}

/* Chapter body */
.chapter-body { min-width: 0; }

.chapter-title {
  margin: 0 0 clamp(28px, 4vw, 48px);
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(36px, 5.5vw, 80px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 16ch;
}
.chapter-title em {
  font-style: italic;
  color: var(--acc-text);
}

.chapter-body .lead {
  font-size: clamp(18px, 1.8vw, 22px);
  line-height: 1.55;
  color: var(--ink);
  margin: 0 0 18px;
  max-width: 55ch;
}
.chapter-body p {
  margin: 0 0 18px;
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 60ch;
}
.chapter-body strong { color: var(--ink); font-weight: 600; }
.chapter-body em {
  font-style: italic;
  color: var(--ink);
}

/* Spec table */
.spec-table {
  width: 100%;
  margin: 36px 0 0;
  border-collapse: collapse;
  font-family: var(--f-sans);
  font-size: 15px;
  border-top: 1px solid var(--ink);
}
.spec-table th,
.spec-table td {
  padding: 14px 0;
  text-align: left;
  vertical-align: baseline;
  border-bottom: 1px solid var(--line);
}
.spec-table th {
  width: 30%;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-right: 16px;
}
.spec-table td { color: var(--ink); }
.spec-table tr:last-child th,
.spec-table tr:last-child td { border-bottom: 1px solid var(--ink); }
@media (max-width: 480px) {
  .spec-table th { width: 40%; }
}

/* ============== CAPABILITY LIST ============== */
.capability-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}
.capability-list li {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 20px;
  align-items: start;
  padding-block: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: padding-inline 320ms var(--ease);
}
.capability-list li:last-child { border-bottom: 1px solid var(--ink); }
.capability-list li:hover { padding-inline: 12px 0; }

.cap-marker {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 28px;
  font-weight: 400;
  color: var(--acc-text);
  line-height: 1;
  padding-top: 4px;
}
.capability-list h3 {
  margin: 0 0 6px;
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(22px, 2.4vw, 30px);
  letter-spacing: -0.018em;
  line-height: 1.15;
  color: var(--ink);
}
.capability-list p {
  margin: 0;
  font-family: var(--f-serif);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 56ch;
}
.cap-tag {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 4px 8px;
  border: 1px solid var(--line-2);
  margin-top: 8px;
  white-space: nowrap;
}

/* ============== BPMN FIGURE ============== */
.chapter-figure { background: var(--bg); }

.bpmn-figure {
  margin: clamp(28px, 4vw, 48px) 0;
  padding: 0;
}

.bpmn-cap {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-bottom: 0;
}
.bpmn-fig {
  color: var(--acc-text);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.bpmn-title { color: var(--ink); font-weight: 600; }
.bpmn-meta { margin-left: auto; color: var(--ink-mute); text-transform: uppercase; letter-spacing: 0.14em; }

/* Desktop BPMN */
.bpmn-desktop {
  display: none;
  position: relative;
  background: var(--paper);
  border-left: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: clamp(20px, 3vw, 40px);
  overflow: hidden;
}
.bpmn-desktop svg {
  width: 100%;
  height: auto;
  display: block;
}
@media (min-width: 720px) { .bpmn-desktop { display: block; } }

/* Mobile BPMN — vertical list */
.bpmn-mobile {
  display: block;
  position: relative;
  background: var(--paper);
  border-left: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 24px 20px;
}
@media (min-width: 720px) { .bpmn-mobile { display: none; } }

.bpmn-vert {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}
.bpmn-vert::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--ink);
}

.vert-step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding-block: 14px;
  position: relative;
}

.vert-marker {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--paper);
  position: relative;
  z-index: 2;
}
.m-circle {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.8px solid var(--ink);
}
.m-circle.m-end { border-width: 3.5px; }
.m-rect {
  display: block;
  width: 26px;
  height: 18px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: 3px;
}
.m-rect.m-service {
  background: #fff;
}
.m-diamond {
  display: block;
  width: 22px;
  height: 22px;
  background: var(--paper);
  border: 1.8px solid var(--ink);
  transform: rotate(45deg);
}

.vert-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 4px;
}
.vert-lane {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.vert-body strong {
  font-family: var(--f-sans);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink);
  letter-spacing: -0.015em;
  line-height: 1.2;
}
.vert-desc {
  font-family: var(--f-serif);
  font-size: 14px;
  color: var(--ink-2);
}
.vert-type {
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  margin-top: 2px;
}

/* Animated mobile token — a moving dot down the left rail */
@media (prefers-reduced-motion: no-preference) {
  .vert-token {
    position: absolute;
    left: 35px;
    top: 24px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--acc);
    box-shadow: 0 0 0 4px rgba(255, 78, 26, 0.18);
    animation: vertTokenDrop 16s linear infinite;
    will-change: transform;
  }
  @keyframes vertTokenDrop {
    0%   { transform: translateY(0);     opacity: 0; }
    3%   { opacity: 1; }
    12%  { transform: translateY(68px);  }
    24%  { transform: translateY(136px); }
    36%  { transform: translateY(204px); }
    48%  { transform: translateY(272px); }
    60%  { transform: translateY(340px); }
    72%  { transform: translateY(408px); }
    85%  { transform: translateY(476px); opacity: 1; }
    100% { transform: translateY(476px); opacity: 0; }
  }
}


@media (max-width: 719px) {
  .vert-token { display: none !important; }
}

/* BPMN legend */
.bpmn-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ink);
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.leg-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.leg-shape {
  display: inline-block;
  flex-shrink: 0;
}
.leg-circle {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--ink);
}
.leg-rect {
  width: 18px; height: 12px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  border-radius: 2px;
}
.leg-diamond {
  width: 12px; height: 12px;
  background: var(--paper);
  border: 1.5px solid var(--ink);
  transform: rotate(45deg);
}
.leg-end {
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--ink);
}
.leg-token {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--acc);
  box-shadow: 0 0 0 3px rgba(255, 78, 26, 0.2);
}

/* Caption text */
.caption {
  margin: 28px 0 0;
  padding-top: 16px;
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  max-width: 70ch;
}
.caption strong { color: var(--ink); font-weight: 600; }
.caption em { color: var(--ink); font-style: italic; font-family: var(--f-serif); font-size: 13px; }

/* ============== PATH LIST ============== */
.path-list {
  margin: 0 0 clamp(40px, 5vw, 64px);
  border-top: 1px solid var(--ink);
}
.path-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding-block: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line);
}
.path-row:last-child { border-bottom: 1px solid var(--ink); }
@media (min-width: 640px) {
  .path-row { grid-template-columns: 140px 1fr; gap: 32px; }
}
.path-tag {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--ink);
  padding: 4px 10px;
  align-self: start;
  justify-self: start;
}
.path-row h3 {
  margin: 0 0 8px;
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(20px, 2.4vw, 28px);
  letter-spacing: -0.018em;
  color: var(--ink);
}
.path-row p {
  margin: 0;
  font-family: var(--f-serif);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 60ch;
}

.sub-heading {
  margin: 48px 0 16px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
  font-weight: 500;
}

/* ============== CONTACT ============== */
.chapter-contact { background: var(--bg-2); }

.contact-list {
  list-style: none;
  margin: 0 0 clamp(32px, 4vw, 56px);
  padding: 0;
  border-top: 1px solid var(--ink);
}
.contact-list li { border-bottom: 1px solid var(--ink); }
.contact-list li a,
.contact-list li.static {
  display: grid;
  grid-template-columns: 100px 1fr 30px;
  align-items: center;
  gap: 20px;
  padding: clamp(18px, 2.5vw, 28px) 0;
  color: var(--ink);
  transition: padding-inline 320ms var(--ease), background 240ms var(--ease), color 240ms var(--ease);
  min-height: 56px;
}
.contact-list li a:hover {
  background: var(--ink);
  color: var(--bg);
  padding-inline: 16px 0;
}
.contact-list li.static { cursor: default; }
@media (max-width: 540px) {
  .contact-list li a,
  .contact-list li.static {
    grid-template-columns: 1fr auto;
    gap: 6px;
    padding-block: 16px;
  }
  .cl-arr { grid-row: 1; }
  .cl-val { grid-column: 1 / -1; }
}

.cl-key {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.contact-list li a:hover .cl-key { color: var(--bg); opacity: 0.6; }
.cl-val {
  font-family: var(--f-serif);
  font-size: clamp(20px, 2.4vw, 30px);
  font-style: italic;
  letter-spacing: -0.015em;
}
.cl-arr {
  justify-self: end;
  font-family: var(--f-mono);
  font-size: 18px;
  color: var(--ink-mute);
  transition: color 240ms var(--ease), transform 320ms var(--ease);
}
.contact-list li a:hover .cl-arr {
  color: var(--acc-text);
  transform: rotate(-45deg);
}

/* ============== COLOPHON ============== */
.colophon {
  padding-block: 28px;
  background: var(--bg);
  border-bottom: 1px solid var(--ink);
}
.colophon-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink);
}
@media (min-width: 640px) { .colophon-grid { grid-template-columns: repeat(4, 1fr); gap: 32px; } }
.col-label {
  margin: 0 0 4px;
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.colophon p { margin: 0; }

/* ============== FOOTER ============== */
.site-footer {
  padding-block: 24px;
  background: var(--bg);
}
.footer-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
  justify-content: space-between;
  align-items: flex-start;
}
@media (min-width: 640px) {
  .footer-grid { flex-direction: row; align-items: center; }
}
.footer-name {
  margin: 0;
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 16px;
  color: var(--ink);
}
.footer-meta {
  margin: 2px 0 0;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--ink-mute);
}
.footer-nav {
  display: flex;
  gap: 20px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.footer-nav a {
  color: var(--ink-soft);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
  min-height: 32px;
  display: inline-flex;
  align-items: center;
}
.footer-nav a:hover { color: var(--acc-text); border-bottom-color: var(--acc-text); }

/* ============== COVER ENTRANCE ============== */
@media (prefers-reduced-motion: no-preference) {
  .cover-meta,
  .cover-eyebrow,
  .cover-title .ct-line,
  .cover-abstract,
  .cover-cta {
    opacity: 0;
    animation: rise 700ms var(--ease-o) forwards;
    will-change: opacity, transform;
  }
  .cover-meta                 { animation-delay:  40ms; }
  .cover-eyebrow              { animation-delay: 120ms; }
  .cover-title .ct-line:nth-child(1) { animation-delay: 200ms; }
  .cover-title .ct-line:nth-child(2) { animation-delay: 280ms; }
  .cover-title .ct-line:nth-child(3) { animation-delay: 360ms; }
  .cover-title .ct-line:nth-child(4) { animation-delay: 440ms; }
  .cover-abstract             { animation-delay: 560ms; }
  .cover-cta                  { animation-delay: 660ms; }

  @keyframes rise {
    from { opacity: 0; transform: translate3d(0, 14px, 0); }
    to   { opacity: 1; transform: translate3d(0, 0, 0); }
  }
}

/* ============== LEGAL PAGES ============== */
.legal { padding-block: clamp(48px, 7vw, 96px); }
.legal .wrap { max-width: 760px; }
.legal .back {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--ink-soft);
  margin-bottom: 40px;
  min-height: 32px;
}
.legal .back:hover { color: var(--acc-text); }
.legal-sub {
  font-family: var(--f-mono); font-size: 11px; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--acc-text); margin: 0 0 14px;
}
.legal h1 {
  margin: 0 0 16px;
  font-family: var(--f-serif); font-weight: 400; font-style: italic;
  font-size: clamp(40px, 6vw, 80px);
  letter-spacing: -0.035em; line-height: 0.95;
  color: var(--ink);
}
.legal h2 {
  font-family: var(--f-serif); font-weight: 400;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.018em;
  margin: 48px 0 14px;
  color: var(--ink);
}
.legal h3 { font-size: 16px; font-weight: 600; margin: 24px 0 8px; color: var(--ink); }
.legal p, .legal li { color: var(--ink-2); font-size: 16px; line-height: 1.7; }
.legal ul { padding-left: 1.2em; }
.legal a {
  color: var(--acc-text);
  border-bottom: 1px solid var(--acc-text);
  padding-bottom: 1px;
}
.legal a:hover { background: var(--acc-text); color: var(--bg); }
.legal hr { border: 0; border-top: 1px solid var(--ink); margin: 48px 0; }
.legal strong { color: var(--ink); font-weight: 600; }


/* Legal helper notes */
.legal-note {
  font-style: italic;
  color: var(--ink-mute);
  margin-bottom: 32px;
}


/* ============== RIGHTS / ROLES PROTOTYPE ============== */
.rights-figure {
  margin: clamp(44px, 6vw, 72px) 0 0;
  padding: 0;
}
.rights-demo {
  background: var(--paper);
  border-left: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: clamp(20px, 3vw, 36px);
}
.rights-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
  align-items: start;
  padding-bottom: clamp(20px, 3vw, 32px);
  border-bottom: 1px solid var(--line-2);
}
@media (min-width: 820px) {
  .rights-intro { grid-template-columns: 1fr 180px; gap: 36px; }
}
.rights-intro h3 {
  margin: 0 0 10px;
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(26px, 3.2vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--ink);
}
.rights-intro p {
  margin: 0;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink-2);
  max-width: 68ch;
}
.rights-status {
  border: 1px solid var(--ink);
  padding: 16px;
  min-height: 112px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--bg);
}
.rs-label,
.rights-kicker,
.rights-mode {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.rights-status strong {
  display: block;
  font-family: var(--f-serif);
  font-size: 48px;
  font-weight: 400;
  line-height: 1;
  color: var(--acc-text);
  margin: 8px 0 6px;
}
.rights-status span:last-child { color: var(--ink-soft); }
.rights-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding-top: clamp(20px, 3vw, 32px);
}
@media (min-width: 980px) {
  .rights-layout { grid-template-columns: 220px 1fr 240px; align-items: start; }
}
.rights-panel {
  border: 1px solid var(--line-2);
  background: rgba(248, 244, 233, 0.66);
  padding: 16px;
}
.rights-role-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}
.rights-role-btn {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line-2);
  background: transparent;
  color: var(--ink);
  padding: 12px;
  cursor: pointer;
  font-family: var(--f-serif);
  transition: background 220ms var(--ease), border-color 220ms var(--ease), transform 220ms var(--ease);
}
.rights-role-btn:hover,
.rights-role-btn:focus-visible {
  background: var(--bg-2);
  border-color: var(--ink);
}
.rights-role-btn.is-active {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}
.rights-role-name {
  display: block;
  font-size: 16px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.rights-role-meta {
  display: block;
  margin-top: 4px;
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.68;
}
.rights-main { min-width: 0; }
.rights-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 720px) {
  .rights-head { grid-template-columns: 1fr auto; }
}
.rights-head h4 {
  margin: 6px 0 6px;
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(22px, 2.8vw, 32px);
  line-height: 1.1;
  color: var(--ink);
}
.rights-head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-soft);
}
.rights-mode {
  justify-self: start;
  align-self: start;
  border: 1px solid var(--line-2);
  padding: 5px 8px;
  color: var(--acc-text);
  background: var(--acc-soft);
}
.rights-grid {
  display: grid;
  gap: 14px;
  padding-top: 18px;
}
.rights-group {
  border-top: 1px solid var(--ink);
  padding-top: 12px;
}
.rights-group h5 {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.rights-checks {
  display: grid;
  gap: 8px;
}
.rights-check {
  display: grid;
  grid-template-columns: 20px 1fr auto;
  gap: 10px;
  align-items: start;
  padding: 10px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.24);
}
.rights-check input {
  width: 16px;
  height: 16px;
  margin-top: 3px;
  accent-color: var(--ink);
}
.rights-check strong {
  display: block;
  font-family: var(--f-sans);
  font-size: 14px;
  color: var(--ink);
  line-height: 1.25;
}
.rights-check span {
  display: block;
  margin-top: 3px;
  font-family: var(--f-serif);
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.45;
}
.rights-badge {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  border: 1px solid var(--line-2);
  padding: 3px 6px;
  white-space: nowrap;
}
.rights-check.is-selected {
  border-color: var(--ink);
  background: var(--bg-2);
}
.rights-check.is-critical .rights-badge {
  color: var(--acc-text);
  border-color: rgba(176, 48, 10, 0.55);
  background: var(--acc-soft);
}
.rights-audit {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.rights-audit li {
  border-top: 1px solid var(--line);
  padding-top: 10px;
  font-family: var(--f-serif);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
}
.rights-audit strong {
  display: block;
  margin-bottom: 2px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink);
}
.rights-caption { margin-top: 18px; }
@media (max-width: 540px) {
  .rights-check { grid-template-columns: 20px 1fr; }
  .rights-badge { grid-column: 2; justify-self: start; }
}


/* ============== E-INVOICE CONTROL MATRIX ============== */
.einvoice-figure {
  margin: clamp(36px, 5vw, 64px) 0 0;
  padding: 0;
}
.einvoice-demo {
  background: var(--paper);
  border-left: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: clamp(20px, 3vw, 34px);
}
.einvoice-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-2);
}
@media (min-width: 820px) {
  .einvoice-intro { grid-template-columns: 1fr minmax(240px, 300px); gap: 32px; }
}
.einvoice-intro h3 {
  margin: 0 0 10px;
  font-family: var(--f-serif);
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.08;
  font-weight: 400;
  letter-spacing: -0.025em;
  color: var(--ink);
  max-width: 18ch;
}
.einvoice-intro p {
  margin: 0;
  max-width: 68ch;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.65;
}
.einvoice-score {
  border: 1px solid var(--ink);
  background: var(--bg);
  padding: 14px 16px;
  min-height: 168px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.einvoice-score .ev-label {
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.einvoice-score strong {
  font-family: var(--f-serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.05;
  color: var(--acc-text);
}
.einvoice-score .einvoice-mode {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-soft);
}

.einvoice-metrics {
  width: 100%;
  margin-top: 14px;
  display: grid;
  gap: 8px;
}
.einvoice-meter {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.einvoice-meter:first-child { border-top: 0; padding-top: 0; }
.einvoice-meter strong {
  font-family: var(--f-mono);
  font-style: normal;
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 7px;
  border: 1px solid var(--line-2);
  color: var(--ink);
  background: rgba(26, 22, 20, 0.04);
  white-space: nowrap;
}
.einvoice-meter strong.mid { color: var(--ink-soft); }
.einvoice-meter strong.warn { color: var(--acc-text); border-color: rgba(176, 48, 10, 0.55); }
.einvoice-meter strong.low { color: var(--ink-mute); }

.einvoice-format-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 22px 0;
}
@media (min-width: 640px) {
  
.einvoice-metrics {
  width: 100%;
  margin-top: 14px;
  display: grid;
  gap: 8px;
}
.einvoice-meter {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding-top: 8px;
  border-top: 1px solid var(--line);
}
.einvoice-meter:first-child { border-top: 0; padding-top: 0; }
.einvoice-meter strong {
  font-family: var(--f-mono);
  font-style: normal;
  font-size: 10px;
  line-height: 1;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 7px;
  border: 1px solid var(--line-2);
  color: var(--ink);
  background: rgba(26, 22, 20, 0.04);
  white-space: nowrap;
}
.einvoice-meter strong.mid { color: var(--ink-soft); }
.einvoice-meter strong.warn { color: var(--acc-text); border-color: rgba(176, 48, 10, 0.55); }
.einvoice-meter strong.low { color: var(--ink-mute); }

.einvoice-format-bar { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.einvoice-format-btn {
  min-height: 58px;
  padding: 12px;
  border: 1px solid var(--line-2);
  background: var(--paper);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  font-family: var(--f-serif);
  transition: background 220ms var(--ease), border-color 220ms var(--ease), transform 220ms var(--ease);
}
.einvoice-format-btn:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}
.einvoice-format-btn.is-active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.einvoice-format-btn strong {
  display: block;
  font-size: 16px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.01em;
}
.einvoice-format-btn span {
  display: block;
  margin-top: 4px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.einvoice-format-btn.is-active span { color: rgba(241, 236, 223, 0.68); }
.einvoice-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 960px) {
  .einvoice-layout { grid-template-columns: minmax(0, 1.45fr) minmax(260px, .85fr); }
}
.einvoice-panel {
  background: var(--bg);
  border: 1px solid var(--line-2);
  padding: 18px;
}
.einvoice-panel-main { min-width: 0; }
.einvoice-flow {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--ink);
}
.einvoice-step {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 14px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}
.einvoice-step:last-child { border-bottom: 1px solid var(--ink); }
.einvoice-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--f-mono);
  font-size: 10px;
  line-height: 1;
}
.einvoice-step h5 {
  margin: 0 0 3px;
  font-family: var(--f-serif);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.einvoice-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-2);
}
.einvoice-chip {
  justify-self: end;
  align-self: center;
  padding: 3px 8px;
  border: 1px solid var(--line-2);
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  white-space: nowrap;
}
.einvoice-chip.must { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.einvoice-chip.check { color: var(--acc-text); border-color: rgba(176, 48, 10, 0.55); }
@media (max-width: 540px) {
  .einvoice-step { grid-template-columns: 36px 1fr; }
  .einvoice-chip { grid-column: 2; justify-self: start; margin-top: 4px; }
}
.einvoice-matrix {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}
.einvoice-control-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
}
.einvoice-control-row:last-child { border-bottom-color: var(--ink); }
.einvoice-control-row strong {
  display: block;
  font-family: var(--f-serif);
  font-size: 16px;
  font-weight: 400;
  color: var(--ink);
}
.einvoice-control-row span {
  display: block;
  margin-top: 2px;
  font-size: 12px;
  color: var(--ink-soft);
  line-height: 1.45;
}
.einvoice-state {
  min-width: 72px;
  text-align: center;
  padding: 5px 8px;
  border: 1px solid var(--line-2);
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.einvoice-state.ok { background: rgba(26, 22, 20, 0.06); color: var(--ink); }
.einvoice-state.warn { color: var(--acc-text); border-color: rgba(176, 48, 10, 0.55); }
.einvoice-state.no { color: var(--ink-mute); }
.einvoice-caption { margin-top: 18px; }


/* ============== METHOD + PROJECT PROOF ENHANCEMENTS ============== */
.method-panel {
  margin-top: clamp(36px, 5vw, 64px);
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid var(--ink);
  background: var(--paper);
  position: relative;
}
.method-panel::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--acc-text);
}
.method-kicker,
.proof-kicker {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.method-panel h3 {
  margin: 0 0 18px;
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.method-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.method-steps li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}
.method-steps li:last-child { border-bottom: 1px solid var(--line); }
.method-num {
  font-family: var(--f-serif);
  font-size: 28px;
  line-height: 1;
  color: var(--acc-text);
  font-style: italic;
}
.method-steps strong {
  display: block;
  font-family: var(--f-sans);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 3px;
}
.method-steps span:last-child {
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.55;
}
.project-proof {
  margin: 22px 0 clamp(34px, 4vw, 54px);
  padding: 18px 20px;
  border: 1px solid var(--line-2);
  background: var(--paper);
}
.project-proof h4 {
  margin: 0 0 12px;
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(20px, 2vw, 26px);
  letter-spacing: -0.015em;
  color: var(--ink);
}
.project-proof ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
.project-proof li {
  position: relative;
  padding-left: 18px;
  font-family: var(--f-sans);
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-2);
}
.project-proof li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 7px;
  height: 1px;
  background: var(--acc-text);
}
@media (min-width: 720px) {
  .project-proof ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.contact-intro {
  margin: 0 0 clamp(24px, 4vw, 40px);
  max-width: 62ch;
  font-size: clamp(18px, 1.8vw, 22px) !important;
  line-height: 1.55 !important;
  color: var(--ink) !important;
}


/* ============== BPMN BRIEFING BUILDER ============== */
.briefing-figure {
  margin: clamp(34px, 5vw, 70px) 0;
}
.briefing-demo {
  background: var(--paper);
  border-left: 1px solid var(--ink);
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: clamp(18px, 3vw, 28px);
}
.briefing-intro {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
  margin-bottom: 22px;
}
@media (min-width: 860px) {
  .briefing-intro { grid-template-columns: 1fr 240px; }
}
.briefing-intro h3 {
  margin: 0 0 10px;
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.briefing-intro p {
  margin: 0;
  max-width: 70ch;
  color: var(--ink-2);
  font-size: 16px;
  line-height: 1.6;
}
.briefing-status {
  border: 1px solid var(--ink);
  padding: 14px 16px;
  background: var(--bg);
  min-height: 130px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.briefing-status strong {
  font-family: var(--f-serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1;
  color: var(--acc-text);
  margin: 8px 0;
}
.briefing-status span:last-child {
  font-family: var(--f-mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.briefing-builder {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
@media (min-width: 980px) {
  .briefing-builder { grid-template-columns: 0.92fr 1.08fr; align-items: start; }
  .briefing-output-card { grid-column: 1 / -1; }
}
.briefing-card {
  border: 1px solid var(--line-2);
  background: var(--bg);
  padding: 16px;
}
.briefing-fields {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.briefing-fields label {
  display: grid;
  gap: 6px;
}
.briefing-fields label span {
  font-family: var(--f-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-mute);
}
.briefing-fields input,
.briefing-fields textarea {
  width: 100%;
  border: 1px solid var(--line-2);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-sans);
  font-size: 14px;
  line-height: 1.5;
  padding: 10px 11px;
  border-radius: 0;
}
.briefing-fields textarea { resize: vertical; min-height: 92px; }
.briefing-fields input:focus,
.briefing-fields textarea:focus {
  outline: 2px solid var(--ink);
  outline-offset: 2px;
}
.briefing-type-bar {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
@media (min-width: 560px) {
  .briefing-type-bar { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.briefing-type-btn,
.briefing-lane-btn,
.briefing-decision-btn {
  border: 1px solid var(--line-2);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  font-family: var(--f-sans);
  transition: background 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease), transform 180ms var(--ease);
}
.briefing-type-btn {
  padding: 12px;
  display: grid;
  gap: 4px;
}
.briefing-type-btn strong {
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.briefing-type-btn span {
  font-family: var(--f-mono);
  font-size: 10px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.10em;
}
.briefing-type-btn:hover,
.briefing-lane-btn:hover,
.briefing-decision-btn:hover { border-color: var(--ink); transform: translateY(-1px); }
.briefing-type-btn.is-active,
.briefing-lane-btn.is-active,
.briefing-decision-btn.is-active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.briefing-type-btn.is-active span { color: rgba(241,236,223,.72); }
.briefing-lanes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.briefing-lane-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  font-family: var(--f-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.briefing-lane-btn::before {
  content: "";
  width: 9px;
  height: 9px;
  border: 1px solid currentColor;
  background: transparent;
}
.briefing-lane-btn.is-active::before { background: var(--acc-text); border-color: var(--acc-text); }
.briefing-steps {
  list-style: none;
  margin: 14px 0 16px;
  padding: 0;
  border-top: 1px solid var(--line-2);
}
.briefing-step {
  display: grid;
  grid-template-columns: 42px 1fr auto;
  gap: 12px;
  align-items: start;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}
.briefing-step-num {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 24px;
  line-height: 1;
  color: var(--acc-text);
}
.briefing-step h5 {
  margin: 0 0 4px;
  font-family: var(--f-sans);
  font-size: 14px;
  color: var(--ink);
}
.briefing-step p {
  margin: 0;
  font-family: var(--f-serif);
  font-size: 14px;
  line-height: 1.45;
  color: var(--ink-2);
}
.briefing-step em {
  font-family: var(--f-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--ink-soft);
  border: 1px solid var(--line-2);
  padding: 3px 6px;
  font-style: normal;
  white-space: nowrap;
}
.briefing-decisions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}
@media (min-width: 560px) {
  .briefing-decisions { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.briefing-decision-btn {
  padding: 10px 11px;
  display: grid;
  gap: 3px;
}
.briefing-decision-btn strong {
  font-family: var(--f-sans);
  font-size: 13px;
}
.briefing-decision-btn span {
  font-family: var(--f-serif);
  font-size: 13px;
  line-height: 1.4;
  color: var(--ink-2);
}
.briefing-decision-btn.is-active span { color: rgba(241,236,223,.74); }
.briefing-output {
  margin: 14px 0 0;
  white-space: pre-wrap;
  overflow-x: auto;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  padding: 16px;
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1.65;
  max-height: 520px;
}
.briefing-caption { margin-bottom: 0; }


/* ============== NOSCRIPT FALLBACK ============== */
.noscript-note {
  margin: 18px 0 24px;
  padding: 14px 16px;
  border: 1px solid var(--line-2);
  background: var(--paper);
}

/* ============== PERFORMANCE GUARDS ============== */
@supports (content-visibility: auto) {
  .chapter-alt,
  .chapter-figure,
  .chapter-contact {
    content-visibility: auto;
    contain-intrinsic-size: 1200px;
  }
  .rights-figure,
  .einvoice-figure,
  .briefing-figure {
    content-visibility: auto;
    contain-intrinsic-size: 1000px;
  }
}