/* ============================================================================
   MicroLink shell · page corners, side rail, masthead, frontmatter, bands
   Extracted from v10 with side-rail repurposed as primary nav.
   ============================================================================ */

/* progress strip */
.progress-strip {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  background: var(--ink);
  width: 0%;
  z-index: 1000;
  transition: width 0.1s linear;
}

/* side rail · v10 styling, repurposed as primary nav for the investor site */
.side-rail {
  position: fixed;
  left: 30px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}
.side-rail-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.side-rail-item {
  display: flex; align-items: center; gap: 14px;
  color: var(--ink-4); text-decoration: none;
  padding: 4px 0; position: relative;
  transition: color 0.15s;
  white-space: nowrap;
}
.side-rail-item .num { font-size: 9px; color: var(--ink-4); width: 18px; }
.side-rail-item .label {
  display: inline-block;
  white-space: nowrap;
}
.side-rail-item:hover { color: var(--ink); }
.side-rail-item:hover .label { color: var(--ink); }
.side-rail-item.is-sub {
  padding-left: 18px;
  font-size: 9.5px;
  letter-spacing: 0.06em;
}
.side-rail-item.is-sub .num { width: 0; }
.side-rail-item.active { color: var(--ink); }
.side-rail-item.active::before {
  content: ""; position: absolute; left: -18px; top: 50%;
  transform: translateY(-50%); width: 12px; height: 1px;
  background: var(--ink);
}

/* page corners */
.page-corner {
  position: fixed;
  z-index: 40;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.5;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.page-corner.is-faded { opacity: 0; }
.page-corner strong { color: var(--ink); font-weight: 500; }

.page-corner-tl {
  top: var(--corner-pad);
  left: var(--corner-pad);
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-corner-tl .dot-mark {
  width: 7px; height: 7px;
  background: var(--ink);
  border-radius: 50%;
}

.page-corner-tr {
  top: var(--corner-pad);
  right: var(--corner-pad);
  text-align: right;
}
.page-corner-tr .date-chip {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  padding: 5px 10px;
  font-weight: 500;
  letter-spacing: 0.14em;
  margin-bottom: 6px;
}
.page-corner-tr .date-line {
  display: block;
  color: var(--ink);
  font-weight: 500;
  font-size: 10px;
}

.page-corner-bl {
  bottom: var(--corner-pad);
  left: var(--corner-pad);
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-corner-bl .dot-mark {
  width: 7px; height: 7px;
  background: var(--ink);
  border-radius: 50%;
}

.page-corner-br {
  bottom: var(--corner-pad);
  right: var(--corner-pad);
  text-align: right;
}
.page-corner-br .made-by-label {
  display: block;
  color: var(--ink-3);
  margin-bottom: 4px;
  font-size: 9px;
}
.page-corner-br .made-by-name {
  display: block;
  color: var(--ink);
  font-weight: 500;
  font-size: 10px;
}

@media (max-width: 1100px) {
  .page-corner { display: none; }
}

/* containers + bands */
.page { width: 100%; position: relative; }
.container      { max-width: var(--content-max); margin: 0 auto; padding: 0 var(--page-pad); }
.container-wide { max-width: var(--page-max);    margin: 0 auto; padding: 0 var(--page-pad); }

.band { position: relative; padding: var(--s-8) 0; }
.band-paper   { background: var(--paper); }
.band-paper-2 { background: var(--paper-2); }
.band-cream   { background: var(--paper-2); }
.band-deep    { background: var(--paper-3); }
.band-steel   { background: var(--steel); color: var(--paper); }

.band + .band { border-top: 1px solid var(--rule); }
.band-steel + .band, .band + .band-steel { border-top: 0; }
.band-masthead + .band { border-top: 0; }

/* MASTHEAD · floating panel with broken-frame overshoot */
.masthead-stage {
  position: relative;
  padding-top: var(--s-9);
  padding-bottom: var(--s-9);
}

.band-masthead {
  padding-top: var(--s-9);
  padding-bottom: calc(var(--s-9) + var(--s-7));
}

.masthead-stage::before {
  content: "";
  position: absolute;
  top: calc(var(--s-9) + 40px);
  left: 60px;
  right: -40px;
  bottom: var(--s-3);
  border: 1px solid var(--ink);
  pointer-events: none;
  z-index: 0;
}

.masthead {
  position: relative;
  z-index: 1;
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: var(--s-7) var(--s-7) var(--s-7);
}

.masthead-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--mono);
  font-size: var(--fs-meta);
  letter-spacing: 0.1em;
  color: var(--ink-3);
  text-transform: uppercase;
  margin-bottom: var(--s-7);
  flex-wrap: wrap;
  gap: var(--s-4);
  padding-bottom: var(--s-4);
  border-bottom: 1px solid var(--rule-soft);
}
.masthead-brand {
  color: var(--ink); font-weight: 500;
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 12px;
}
.masthead-brand::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--ink);
}
.masthead-meta { display: flex; gap: var(--s-3); flex-wrap: wrap; align-items: center; }
.masthead-meta span { white-space: nowrap; }
.masthead-meta .sep { color: var(--ink-4); font-weight: 400; }
.masthead-meta .classification {
  color: var(--ink);
  border: 1px solid var(--ink);
  padding: 4px 10px;
  letter-spacing: 0.12em;
  font-size: 10px;
  text-transform: uppercase;
}

.masthead-headline {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: var(--s-7);
  align-items: end;
  padding-bottom: var(--s-3);
}
.masthead h1 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(var(--fs-h1-min), 5.5vw, var(--fs-h1-max));
  line-height: 0.92;
  letter-spacing: -0.035em;
  color: var(--ink);
  max-width: 16ch;
}
.masthead h1 em {
  display: block;
  font-style: italic;
  font-weight: 400;
  color: var(--ink-3);
  font-family: var(--serif);
  font-variation-settings: "opsz" 144;
  letter-spacing: -0.025em;
  margin-top: 4px;
}
.masthead-deck-block {
  border-left: 1px solid var(--ink);
  padding-left: var(--s-5);
  padding-bottom: var(--s-3);
}
.masthead-deck-kicker {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: var(--s-3);
}
.masthead-deck {
  font-family: var(--body);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink-2);
}

/* FRONTMATTER */
.frontmatter {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  background: var(--paper);
  border: 1px solid var(--rule);
  position: relative;
  margin-top: var(--s-6);
}
.frontmatter-cell {
  padding: var(--s-5) var(--s-4);
  position: relative;
}
.frontmatter-cell:not(:last-child) {
  border-right: 1px solid var(--rule-soft);
}
.frontmatter-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: var(--s-3);
}
.frontmatter-value {
  font-family: var(--display);
  font-weight: 600;
  font-size: 16px;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.005em;
}
.frontmatter-meta {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-3);
  margin-top: 4px;
}

/* responsive */
@media (max-width: 1200px) {
  :root { --page-pad: 40px; }
  .side-rail { display: none; }
  .masthead-headline { grid-template-columns: 1fr; gap: var(--s-5); }
}
@media (max-width: 900px) {
  .frontmatter { grid-template-columns: repeat(2, 1fr); }
  .frontmatter-cell:nth-child(odd) { border-right: 1px solid var(--rule-soft); }
  .frontmatter-cell:nth-child(even) { border-right: 0; }
  .frontmatter-cell { border-bottom: 1px solid var(--rule-soft); }
}
@media (max-width: 640px) {
  :root { --page-pad: 22px; }
  .band { padding: var(--s-7) 0; }
  .frontmatter { grid-template-columns: 1fr; }
  .frontmatter-cell { border-right: 0 !important; }
  .masthead h1 { font-size: 40px; }
}