/*
 * SCROLLBAR OWNER: Styles/scrollbars.css
 * Scrollbar appearance is centralized there. This file may own overflow,
 * scroll-snap and scrollbar-gutter behavior, but must not style scrollbar chrome.
 */

/*
 * About — compact Millenova dossier.
 * Plan: docs/MILLENOVA_ABOUT_IMPLEMENTATION_PLAN.md
 * Mockup: mockups/ABOUT_DOSSIER_MOCKUP.html
 * One full-width dossier; no card grids. Header / rail / footer are owned elsewhere.
 */

.page-about {
  background:
    radial-gradient(circle at 18% 5%, rgba(255,58,167,.09), transparent 30rem),
    radial-gradient(circle at 86% 30%, rgba(110,242,255,.04), transparent 30rem),
    var(--mn-bg);
}

.about-page {
  --about-line-soft: rgba(255,255,255,.06);
  --about-font-mono: var(--mn-font-mono, "Fira Code", ui-monospace, SFMono-Regular, Consolas, monospace);

  min-width: 0;
  width: auto;
  max-width: 1580px;
  margin-right: auto;
  padding: clamp(2rem, 4vw, 4rem);
  box-sizing: border-box;
}

.about-mono {
  font-family: var(--about-font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ---------- Document frame ---------- */

.about-dossier {
  position: relative;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--mn-text);
  font-size: 15px;
  line-height: 1.6;
  /* Density adapts to the dossier's own width (rail + viewport vary independently). */
  container: about-dossier / inline-size;
}

/* Corner ticks instead of rounded card chrome */
.about-dossier::before,
.about-dossier::after {
  content: none;
}

.about-dossier p {
  margin: 0;
}

/* ---------- Header / status ---------- */

.about-dossier__ref { color: var(--mn-muted); }

.about-dossier__meta {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  border-bottom: 1px solid var(--mn-line);
}

.about-dossier__meta > div { padding: 12px 14px 12px 0; }

.about-dossier__meta > div + div {
  padding-left: 14px;
  border-left: 1px solid var(--about-line-soft);
}

.about-dossier__meta dt {
  margin-bottom: 4px;
  color: var(--mn-muted);
}

.about-dossier__meta dd {
  margin: 0;
  color: var(--mn-text);
  font-size: 13px;
  font-weight: 500;
  line-height: 1.35;
}

.about-dossier__status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--mn-cyan);
}

.about-dossier__status::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--mn-cyan);
  animation: about-signal-pulse 2.4s infinite;
}

@keyframes about-signal-pulse {
  0% { box-shadow: 0 0 0 0 rgba(110,242,255,.55); }
  70% { box-shadow: 0 0 0 7px rgba(110,242,255,0); }
  100% { box-shadow: 0 0 0 0 rgba(110,242,255,0); }
}

/* ---------- Identity ---------- */

.about-dossier__identity {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--mn-line);
}

.about-dossier__identity-main {
  flex: 1 1 auto;
  min-width: 0;
}

.about-dossier__identity h1 {
  margin: 0;
  font-family: var(--mn-font-display);
  font-size: clamp(2.7rem, 6vw, 5.7rem);
  font-weight: 500;
  letter-spacing: -.065em;
  line-height: .92;
}

.about-dossier__identity h1 em {
  font-style: normal;
  background: var(--mn-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.about-dossier__identity p {
  max-width: 72ch;
  margin: .65rem 0 0;
  color: var(--mn-text-soft);
  font-size: .7rem;
}

.about-dossier__identity .mn-kicker {
  margin: 0 0 .55rem;
  color: var(--mn-pink);
  font-size: .7rem;
}

.about-dossier__identity-meta {
  flex: 0 0 auto;
  display: grid;
  justify-items: end;
  gap: .8rem;
  padding-bottom: .15rem;
}

.about-dossier__stamp {
  padding: 5px 9px;
  border: 1.5px solid rgba(255,58,167,.55);
  color: rgba(255,58,167,.8);
  font-size: 10px;
  letter-spacing: .2em;
  transform: rotate(-6deg);
}

/* ---------- Numbered sections ---------- */

.about-dossier__section,
.about-dossier__coords {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--mn-line);
}

.about-dossier__section h2,
.about-dossier__coords h2 {
  margin: 2px 0 0;
  color: var(--mn-text);
  font: 500 11px/1.4 var(--about-font-mono);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.about-dossier__code {
  display: block;
  margin-bottom: 3px;
  color: var(--mn-pink);
  font-size: 12px;
}

.about-dossier__section:nth-of-type(even) .about-dossier__code { color: var(--mn-cyan); }
.about-dossier__coords .about-dossier__code { color: var(--mn-violet); }

.about-dossier__section p { color: var(--mn-text-soft); }
.about-dossier__section p + p { margin-top: 10px; }

.about-dossier__section strong {
  color: var(--mn-text);
  font-weight: 600;
}

.about-dossier__trail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px !important;
  color: var(--mn-muted);
}

.about-dossier__trail b {
  color: var(--mn-text);
  font-weight: 500;
}

.about-dossier__trail i {
  color: var(--mn-pink);
  font-style: normal;
}

.about-dossier__principles {
  margin: 0;
  padding: 0;
  list-style: none;
}

.about-dossier__principles li {
  display: grid;
  grid-template-columns: 44px 190px minmax(0, 1fr);
  gap: 12px;
  padding: 9px 0;
  border-top: 1px dashed var(--about-line-soft);
}

.about-dossier__principles li:first-child {
  padding-top: 0;
  border-top: 0;
}

.about-dossier__principles .about-mono {
  padding-top: 3px;
  color: var(--mn-muted);
}

.about-dossier__principles strong { font-size: 14px; }

.about-dossier__principles li > span:last-child {
  color: var(--mn-text-soft);
  font-size: 14px;
}

.about-dossier__workflow {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 12px 0;
  padding: 0;
  list-style: none;
  color: var(--mn-text);
}

.about-dossier__workflow li::before {
  content: "▪ ";
  color: var(--mn-violet);
}

.about-dossier__section .about-dossier__pull {
  margin: 12px 0;
  padding-left: 14px;
  border-left: 2px solid var(--mn-pink);
  color: var(--mn-text);
  font: 500 17px/1.4 var(--mn-font-display);
}

.about-dossier__link {
  display: inline-block;
  margin-top: 2px;
  border-bottom: 1px solid rgba(110,242,255,.3);
  color: var(--mn-cyan);
  text-decoration: none;
}

.about-dossier__link:hover,
.about-dossier__link:focus-visible { border-bottom-color: var(--mn-cyan); }

.about-dossier__roles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 2px 0 12px;
}

.about-dossier__roles > div { padding-right: 16px; }

.about-dossier__roles > div + div {
  padding-left: 16px;
  border-left: 1px solid var(--about-line-soft);
}

.about-dossier__roles .about-mono {
  display: block;
  margin-bottom: 4px;
  color: var(--mn-muted);
}

.about-dossier__section .about-dossier__roles p { font-size: 14px; }

/* ---------- Coordinates ---------- */

.about-dossier__coords { padding-bottom: 18px; }

.about-dossier__coords-row {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 12px;
  padding: 4px 0;
}

.about-dossier__coords-row > .about-mono {
  padding-top: 3px;
  color: var(--mn-muted);
}

.about-dossier__coords-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
}

.about-dossier__coords-links a {
  border-bottom: 1px solid transparent;
  color: var(--mn-text);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}

.about-dossier__coords-links a:hover,
.about-dossier__coords-links a:focus-visible {
  border-bottom-color: var(--mn-pink);
  color: var(--mn-pink);
  outline: none;
}

.about-dossier__ext {
  color: var(--mn-muted);
  font-size: 12px;
}

/* ---------- File end + barcode ---------- */

.about-dossier__footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  padding-top: 16px;
}

.about-dossier__end {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: var(--mn-muted);
}

.about-dossier__end span:last-child { color: var(--mn-text-soft); }

/* Dark bars on a light label so phone scanners can read it. */
.about-barcode {
  flex: 0 0 auto;
  display: block;
  padding: 10px 12px 8px;
  border-radius: 2px;
  background: var(--mn-text);
  color: var(--mn-bg);
  text-decoration: none;
}

/* 510 viewBox units (486 modules + quiet zones) at 1 CSS px each: pixel-exact on desktop. */
.about-barcode__bars {
  display: block;
  width: 510px;
  max-width: 100%;
  height: 46px;
  fill: var(--mn-bg);
  shape-rendering: crispEdges;
}

.about-barcode__url {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 6px;
  color: #3a3542;
  font: 500 10px/1.2 var(--about-font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  white-space: nowrap;
}

.about-barcode:hover,
.about-barcode:focus-visible {
  outline: 2px solid var(--mn-pink);
  outline-offset: 3px;
}

/* ---------- Dossier-width density (independent of the rail) ---------- */

@container about-dossier (max-width: 740px) {
  .about-dossier__section,
  .about-dossier__coords { grid-template-columns: 120px minmax(0, 1fr); }

  .about-dossier__principles li {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 2px 12px;
  }

  .about-dossier__principles li > span:last-child { grid-column: 2; }

  .about-dossier__footer {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .about-dossier__end {
    flex-direction: row;
    justify-content: space-between;
  }

  .about-barcode { align-self: flex-start; }
}

@container about-dossier (max-width: 600px) {
  .about-dossier__roles { grid-template-columns: 1fr; }
  .about-dossier__roles > div { padding: 8px 0; }

  .about-dossier__roles > div + div {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--about-line-soft);
  }
}

/* ---------- Narrow ---------- */

@media (max-width: 800px) {
  .about-page { padding: 24px clamp(16px, 5vw, 32px) 40px; }

  .about-dossier__meta { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-dossier__meta > div { padding: 10px 10px 10px 0; }

  .about-dossier__meta > div:nth-child(odd) {
    padding-left: 0;
    border-left: 0;
  }

  .about-dossier__meta > div:nth-child(even) { padding-left: 10px; }
  .about-dossier__meta > div:nth-child(n+3) { border-top: 1px solid var(--about-line-soft); }

  .about-dossier__identity {
    align-items: flex-start;
    flex-direction: column;
    gap: 1.15rem;
    padding: 0 0 1.35rem;
  }

  .about-dossier__identity-main {
    width: 100%;
  }

  .about-dossier__identity h1 {
    max-width: 100%;
    font-size: clamp(2.15rem, 10vw, 3.45rem);
    line-height: .94;
    overflow-wrap: anywhere;
  }

  .about-dossier__identity p { font-size: .7rem; }

  .about-dossier__identity-meta {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
  }

  .about-dossier__section,
  .about-dossier__coords {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 18px 0;
  }

  .about-dossier__code {
    display: inline;
    margin-right: 6px;
  }

  .about-dossier__principles li {
    grid-template-columns: 36px minmax(0, 1fr);
    gap: 4px 10px;
  }

  .about-dossier__principles li > span:last-child { grid-column: 2; }

  .about-dossier__roles { grid-template-columns: 1fr; }
  .about-dossier__roles > div { padding: 8px 0; }

  .about-dossier__roles > div + div {
    padding-left: 0;
    border-left: 0;
    border-top: 1px solid var(--about-line-soft);
  }

  .about-dossier__coords-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .about-dossier__footer {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .about-dossier__end {
    flex-direction: row;
    justify-content: space-between;
  }

  .about-barcode { align-self: flex-start; }
}

@media (max-width: 620px) {
  .about-barcode { align-self: stretch; }

  .about-barcode__bars {
    width: 100%;
    shape-rendering: auto;
  }

  .about-barcode__url span:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .about-dossier__status::before { animation: none; }
}