/* Systems Audit service page.
   Extends styles.css. Visual language: operational document, not SaaS landing page.
   Process lines, annotations, evidence markers, document fragments. */

.aud-shell {
  position: relative;
  z-index: 2;
  padding-top: 18px;
}

/* ---------- shared section furniture ---------- */

.aud-section {
  margin: 78px 0 0;
}

.aud-label {
  margin: 0 0 14px;
  color: var(--copper);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.aud-section h2 {
  margin: 0 0 18px;
  max-width: 20ch;
  font-family: var(--display);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.05;
  text-wrap: balance;
}

.aud-section > p {
  max-width: 68ch;
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.65;
  text-wrap: pretty;
}

/* ---------- hero ---------- */

.aud-hero {
  max-width: 760px;
  margin: 0 0 12px;
}

.aud-hero h1 {
  margin: 0 0 24px;
  font-family: "Barlow Condensed", var(--display);
  font-size: clamp(44px, 5vw, 68px);
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.aud-hero p {
  max-width: 62ch;
  margin: 0 0 30px;
  color: #e7edf4;
  font-size: 17px;
  line-height: 1.6;
  text-wrap: pretty;
}

.aud-hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.aud-textlink {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  color: var(--copper);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  cursor: pointer;
  touch-action: manipulation;
  border-bottom: 1px solid rgba(230, 126, 34, 0.35);
}

.aud-textlink:hover,
.aud-textlink:focus-visible {
  color: #f7d8c0;
  border-bottom-color: #f7d8c0;
}

/* ---------- full-width flow visual (problem recognition) ---------- */

.aud-flow {
  margin: 30px 0 0;
  padding: 30px 26px 24px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 10px;
  background: rgba(3, 8, 15, 0.6);
  overflow-x: auto;
}

.aud-flow__track {
  position: relative;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(150px, 1fr);
  gap: 0;
  min-width: 760px;
  padding-top: 26px;
}

.aud-flow__rule {
  position: absolute;
  top: 12px;
  left: 0;
  height: 1px;
  width: 100%;
  background: rgba(255, 255, 255, 0.16);
}

.aud-flow__rule::after {
  content: "";
  position: absolute;
  inset: 0;
  width: var(--trace, 0%);
  background: var(--copper);
  transition: width 1400ms cubic-bezier(0.22, 1, 0.36, 1);
}

.aud-step {
  position: relative;
  padding: 0 16px 0 0;
}

.aud-step__dot {
  position: absolute;
  top: -20px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 1px solid var(--copper);
  border-radius: 50%;
  background: var(--navy-950);
}

.aud-step__name {
  margin: 0 0 5px;
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.3;
}

.aud-step__note {
  margin: 0;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.45;
}

.aud-step--wait .aud-step__dot {
  border-color: #e8564a;
  background: rgba(232, 86, 74, 0.25);
}

.aud-step--wait .aud-step__note {
  color: #f0a49c;
}

/* ---------- does / does not ---------- */

.aud-contrast {
  margin: 26px 0 0;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 10px;
  overflow: hidden;
}

.aud-contrast__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}

.aud-contrast__row:last-child {
  border-bottom: 0;
}

.aud-contrast__head {
  background: rgba(255, 255, 255, 0.03);
}

.aud-contrast__cell {
  padding: 15px 20px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.aud-contrast__cell + .aud-contrast__cell {
  border-left: 1px solid rgba(255, 255, 255, 0.07);
  color: var(--slate);
}

.aud-contrast__head .aud-contrast__cell {
  color: var(--copper);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.aud-contrast__head .aud-contrast__cell + .aud-contrast__cell {
  color: var(--slate);
}

/* ---------- audit process sequence ---------- */

.aud-seq {
  position: relative;
  margin: 30px 0 0;
  padding-left: 34px;
}

.aud-seq::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 1px;
  background: rgba(255, 255, 255, 0.14);
}

.aud-seq::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  width: 1px;
  height: var(--seq-trace, 0%);
  background: var(--copper);
  transition: height 1600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.aud-seq__item {
  position: relative;
  padding: 0 0 26px;
}

.aud-seq__item:last-child {
  padding-bottom: 0;
}

.aud-seq__marker {
  position: absolute;
  left: -30px;
  top: 3px;
  width: 11px;
  height: 11px;
  border: 1px solid var(--copper);
  border-radius: 2px;
  background: var(--navy-950);
  transform: rotate(45deg);
}

.aud-seq__item h3 {
  margin: 0 0 5px;
  font-family: var(--display);
  font-size: 19px;
  font-weight: 700;
}

.aud-seq__item p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

/* ---------- deliverables + document mockups ---------- */

.aud-deliver {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  margin: 28px 0 0;
  align-items: start;
}

.aud-deliver ol {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: deliverable;
}

.aud-deliver li {
  counter-increment: deliverable;
  position: relative;
  padding: 0 0 13px 34px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.aud-deliver li::before {
  content: counter(deliverable, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  color: rgba(230, 126, 34, 0.7);
  font-family: var(--mono);
  font-size: 11px;
}

.aud-docs {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.aud-doc {
  position: relative;
  padding: 18px 20px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 7px;
  background: linear-gradient(160deg, rgba(12, 22, 35, 0.95), rgba(5, 11, 19, 0.95));
}

.aud-doc__tag {
  display: inline-block;
  margin-bottom: 12px;
  padding: 2px 7px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 3px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.aud-doc__title {
  margin: 0 0 12px;
  color: var(--white);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.aud-doc__lines {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.aud-doc__line {
  height: 5px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.11);
}

.aud-doc__line--short { width: 55%; }
.aud-doc__line--mid { width: 78%; }
.aud-doc__line--accent { background: rgba(230, 126, 34, 0.4); width: 40%; }

.aud-doc__bars {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 46px;
  margin-top: 4px;
}

.aud-doc__bar {
  flex: 1;
  background: rgba(230, 126, 34, 0.32);
  border-radius: 2px 2px 0 0;
}

.aud-doc__rows {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px 12px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 10px;
}

.aud-doc__rows span:nth-child(even) {
  color: rgba(255, 255, 255, 0.55);
  text-align: right;
}

/* ---------- interactive diagnostic ---------- */

.aud-diag {
  margin: 28px 0 0;
  padding: 28px 26px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: rgba(3, 8, 15, 0.66);
}

.aud-diag__hint {
  margin: 0 0 20px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
}

.aud-diag__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 28px;
  align-items: start;
}

.aud-diag__steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.aud-node {
  position: relative;
  display: block;
  width: 100%;
  min-height: 44px;
  padding: 12px 14px 12px 34px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 7px;
  background: rgba(9, 17, 28, 0.9);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 13.5px;
  line-height: 1.4;
  text-align: left;
  cursor: pointer;
  touch-action: manipulation;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.aud-node:hover,
.aud-node:focus-visible {
  border-color: rgba(230, 126, 34, 0.5);
  color: var(--white);
}

.aud-node:active {
  transform: scale(0.99);
  opacity: 0.85;
}

.aud-node[aria-selected="true"] {
  border-color: var(--copper);
  background: rgba(230, 126, 34, 0.1);
  color: var(--white);
}

.aud-node__idx {
  position: absolute;
  left: 13px;
  top: 13px;
  color: rgba(230, 126, 34, 0.7);
  font-family: var(--mono);
  font-size: 10px;
}

.aud-node__flag {
  display: inline-block;
  margin-left: 8px;
  padding: 1px 6px;
  border-radius: 3px;
  background: rgba(232, 86, 74, 0.18);
  color: #f0a49c;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  vertical-align: middle;
}

.aud-connector {
  width: 1px;
  height: 14px;
  margin-left: 22px;
  background: rgba(255, 255, 255, 0.18);
}

.aud-diag__panel {
  position: sticky;
  top: 24px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(9, 17, 28, 0.9);
  min-height: 260px;
}

.aud-diag__panel h3 {
  margin: 0 0 4px;
  font-family: var(--display);
  font-size: 19px;
  font-weight: 700;
}

.aud-finding {
  margin: 0 0 16px;
  color: #f0a49c;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.aud-diag__panel p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.aud-diag__record {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.aud-diag__record p {
  margin: 0 0 6px;
  color: var(--slate);
  font-family: var(--mono);
  font-size: 10.5px;
  line-height: 1.5;
}

.aud-diag__record strong {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 500;
}

/* ---------- who it is for ---------- */

.aud-for {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 30px;
}

.aud-for li {
  position: relative;
  padding-left: 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.aud-for li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-left: 1px solid var(--copper);
  border-bottom: 1px solid var(--copper);
}

/* ---------- independence statement ---------- */

.aud-independence {
  margin: 78px 0 0;
  padding: 40px 42px;
  border: 1px solid rgba(230, 126, 34, 0.42);
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(230, 126, 34, 0.09), transparent 62%),
    rgba(6, 13, 22, 0.92);
}

.aud-independence h2 {
  margin: 0 0 16px;
  max-width: 22ch;
  font-family: "Barlow Condensed", var(--display);
  font-size: clamp(30px, 3.6vw, 44px);
  font-weight: 700;
  line-height: 1;
}

.aud-independence p {
  max-width: 70ch;
  margin: 0;
  color: #e7edf4;
  font-size: 16px;
  line-height: 1.65;
}

/* ---------- faq ---------- */

.aud-faq {
  margin: 26px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.aud-faq details {
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
}

.aud-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 56px;
  padding: 16px 4px;
  color: var(--white);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  touch-action: manipulation;
  list-style: none;
}

.aud-faq summary::-webkit-details-marker {
  display: none;
}

.aud-faq summary::after {
  content: "+";
  color: var(--copper);
  font-family: var(--mono);
  font-size: 16px;
  flex-shrink: 0;
}

.aud-faq details[open] summary::after {
  content: "\2212";
}

.aud-faq summary:hover,
.aud-faq summary:focus-visible {
  color: #f7d8c0;
}

.aud-faq__body {
  max-width: 72ch;
  margin: 0;
  padding: 0 4px 20px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

/* ---------- final cta ---------- */

.aud-cta {
  margin: 74px 0 20px;
  text-align: center;
}

.aud-cta h2 {
  max-width: 24ch;
  margin: 0 auto 14px;
  font-family: "Barlow Condensed", var(--display);
  font-size: clamp(32px, 3.8vw, 50px);
  font-weight: 700;
  line-height: 1.02;
  text-wrap: balance;
}

.aud-cta > p {
  max-width: 56ch;
  margin: 0 auto 26px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.aud-cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

/* ---------- scroll reveal ---------- */

/* Progressive enhancement: content is visible by default. Only a browser that
   runs JS and allows motion opts in to the hidden-then-revealed state, so no-JS
   visitors and crawlers always see the full page. */
.js-reveal .aud-reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms ease, transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.js-reveal .aud-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .aud-section {
    margin-top: 58px;
  }

  .aud-deliver,
  .aud-diag__grid,
  .aud-for {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .aud-diag__panel {
    position: static;
    min-height: 0;
  }

  .aud-independence {
    margin-top: 58px;
    padding: 28px 22px;
  }

  .aud-contrast__row {
    grid-template-columns: 1fr;
  }

  .aud-contrast__cell + .aud-contrast__cell {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
  }

  /* stacked cells each carry their own column label, so the contrast survives */
  .aud-contrast__head {
    display: none;
  }

  .aud-contrast__cell[data-side]::before {
    content: attr(data-side);
    display: block;
    margin-bottom: 5px;
    color: var(--copper);
    font-family: var(--mono);
    font-size: 9px;
    letter-spacing: 0.07em;
    text-transform: uppercase;
  }

  .aud-contrast__cell + .aud-contrast__cell[data-side]::before {
    color: var(--slate);
  }

  .aud-contrast__row {
    border-bottom-width: 2px;
  }

  .aud-diag {
    padding: 22px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .js-reveal .aud-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .aud-flow__rule::after,
  .aud-seq::after {
    transition: none;
  }

  .aud-node {
    transition: none;
  }

  .aud-node:active {
    transform: none;
  }
}