/* Sovereign Charter: bordered-frame spec-sheet. Replaces a pair of
   back-to-back feature-grid triptychs on /solutions/sovereign/ with a
   single higher-fidelity section. Matches stack-map's engineering-
   paper vocabulary: L-brackets, tinted frame background, mono labels
   on a white inner table. */

.sovereign-charter {
  position: relative;
  padding-block: clamp(3rem, 6vw, 5rem);
}

.sovereign-charter > .container { position: relative; }

.sovereign-charter__intro {
  max-width: 56rem;
  margin: 0 0 clamp(1.75rem, 3vw, 2.5rem);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.sovereign-charter__heading {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  font-weight: var(--font-weight-display);
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--color-foreground);
  max-width: 42rem;
  margin: 0;
  text-wrap: balance;
  text-transform: capitalize;
}

.sovereign-charter__deck {
  font-size: var(--fs-lg);
  line-height: 1.45;
  color: var(--color-muted-foreground);
  margin: 0;
  max-width: 60ch;
}

/* --- Frame ---------------------------------------------------------
   Same visual rhythm as .stack-map__frame: tinted background so the
   inner table reads as a distinct "paper" on top of the frame. Teal
   tint at very low opacity keeps the brand in the background. */
.sovereign-charter__frame {
  --sc-teal: var(--brand-teal);
  --sc-blue: var(--brand-blue);
  --sc-card: #ffffff;
  --sc-border: var(--color-border);
  --sc-rule: color-mix(in oklch, var(--color-foreground) 10%, transparent);
  --sc-rule-accent: color-mix(in oklch, var(--sc-teal) 35%, transparent);

  position: relative;
  padding: clamp(1.25rem, 2.4vw, 1.75rem);
  background: color-mix(in oklch, var(--sc-teal) 2.5%, white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
}

/* --- Table --------------------------------------------------------- */

.sovereign-charter__table {
  background: var(--sc-card);
  border: 1px solid var(--sc-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/* Grid is shared between head row and data rows so column widths
   stay aligned. The dimension column is narrower (label + scope);
   the two role columns split the remaining width 50/50. */
.sovereign-charter__thead,
.sovereign-charter__row {
  display: grid;
  grid-template-columns: minmax(12rem, 1fr) minmax(0, 1.35fr) minmax(0, 1.35fr);
  gap: 0;
}

.sovereign-charter__thead {
  border-bottom: 1px solid var(--sc-border);
  background: color-mix(in oklch, var(--sc-teal) 3%, var(--sc-card));
}

.sovereign-charter__th {
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted-foreground);
}

.sovereign-charter__th--twg,
.sovereign-charter__th--amal {
  border-left: 1px solid var(--sc-border);
}

.sovereign-charter__th--amal {
  color: color-mix(in oklch, var(--sc-teal) 70%, var(--color-foreground));
}

/* --- Rows --------------------------------------------------------- */

.sovereign-charter__row {
  border-bottom: 1px solid var(--sc-border);
}

.sovereign-charter__row--last { border-bottom: 0; }

.sovereign-charter__cell {
  padding: 1.125rem 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  min-width: 0;
}

.sovereign-charter__cell--twg,
.sovereign-charter__cell--amal {
  border-left: 1px solid var(--sc-border);
}

/* Teal rule on the leading edge of the Amalgamy column so the spine
   of the charter is visible end-to-end. Subtle — brand tint, not a
   hard line. */
.sovereign-charter__cell--amal {
  position: relative;
}
.sovereign-charter__cell--amal::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0.375rem;
  bottom: 0.375rem;
  width: 1px;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    var(--sc-rule-accent) 20%,
    var(--sc-rule-accent) 80%,
    transparent 100%
  );
  pointer-events: none;
}

/* --- Dimension cell (leftmost): number + name + scope ------------- */

.sovereign-charter__n {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.14em;
  padding: 0.1875rem 0.4375rem;
  border-radius: var(--radius-sm);
  background: color-mix(in oklch, var(--sc-teal) 10%, transparent);
  color: var(--sc-teal);
  border: 1px solid color-mix(in oklch, var(--sc-teal) 18%, transparent);
  align-self: flex-start;
  white-space: nowrap;
}

.sovereign-charter__name {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: var(--font-weight-display);
  line-height: 1.2;
  color: var(--color-foreground);
  letter-spacing: -0.01em;
  margin-top: 0.25rem;
}

.sovereign-charter__scope {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
  color: var(--color-muted-foreground);
}

/* --- Role cells (ThisWay / Amalgamy) ------------------------------ */

.sovereign-charter__cell-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted-foreground);
}

.sovereign-charter__cell--amal .sovereign-charter__cell-label {
  color: color-mix(in oklch, var(--sc-teal) 72%, var(--color-foreground));
}

.sovereign-charter__cell-body {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--color-foreground);
}

/* --- Absent Amalgamy cell (Workforce row) -------------------------
   Deliberate empty-by-design treatment. The workforce dimension is
   the differentiator pure-software plays can't ship, so the absence
   itself is the point. Italic, muted, slightly dimmer background. */

.sovereign-charter__cell--absent {
  background: color-mix(in oklch, var(--color-foreground) 1.5%, transparent);
}

.sovereign-charter__cell-absent-label {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-style: italic;
  font-weight: var(--font-weight-medium);
  color: color-mix(in oklch, var(--color-foreground) 72%, transparent);
  line-height: 1.4;
}

.sovereign-charter__cell-absent-body {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-style: italic;
  line-height: 1.45;
  color: var(--color-muted-foreground);
}

/* --- Responsive --------------------------------------------------- */

/* Stack at medium: dimension column on top, role columns beneath in a
   2-col inner row. Keeps the head row intact for orientation. */
@media (max-width: 900px) {
  .sovereign-charter__thead {
    display: none;
  }
  .sovereign-charter__row {
    grid-template-columns: 1fr;
    padding: 0.5rem 0;
  }
  .sovereign-charter__cell--twg,
  .sovereign-charter__cell--amal {
    border-left: 0;
    border-top: 1px solid color-mix(in oklch, var(--sc-border) 70%, transparent);
  }
  .sovereign-charter__cell--amal::before {
    /* Horizontal accent rule at the cell top edge on narrow widths. */
    top: -1px;
    left: 0.75rem;
    right: 0.75rem;
    bottom: auto;
    height: 1px;
    width: auto;
    background: linear-gradient(
      to right,
      transparent 0%,
      var(--sc-rule-accent) 20%,
      var(--sc-rule-accent) 80%,
      transparent 100%
    );
  }
  .sovereign-charter__cell {
    padding: 0.875rem 1rem 1rem;
  }
}

@media (max-width: 560px) {
  .sovereign-charter__name { font-size: var(--fs-base); }
}