/* Banka identity and case-study styling; follows Galleon reference implementation. */
.portfolio-ui.page-banka {
  --banka-gold: #c88a2c;
  --banka-gold-bright: #e8b85f;
  --banka-navy: #0e2235;
  --banka-navy-deep: #081521;
  --banka-paper: #fbf7ee;
  --banka-charcoal: #171310;
  --banka-panel: #201b16;
  --banka-panel-border: rgba(232, 184, 95, 0.22);
  --banka-teal: #7fbbae;
}

.portfolio-ui.page-banka .banka-surface {
  --ink: var(--banka-navy);
  --paper: var(--banka-paper);
  --site-line: rgba(14, 34, 53, 0.22);
  --site-focus-ring: var(--banka-gold);
  color: var(--ink);
}

.portfolio-ui.page-banka .banka-surface.site-dark {
  --site-line: rgba(251, 247, 238, 0.25);
  --site-focus-ring: var(--banka-gold-bright);
  color: var(--paper);
}

/* ---------- Top Retirement Banner ---------- */
.portfolio-ui.page-banka .banka-retired-banner {
  position: sticky;
  top: var(--site-nav-height, 72px);
  z-index: 99;
  border-bottom: 2px solid #171310;
  background: repeating-linear-gradient(-45deg, #ffe08a, #ffe08a 14px, #ffd063 14px, #ffd063 28px);
  color: #111;
  padding: 0.5rem 0;
  font: 500 0.82rem/1.5 var(--font-mono);
}

.portfolio-ui.page-banka .banka-retired-banner a:not(.banka-retired-link) {
  color: #111;
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 700;
}

.portfolio-ui.page-banka .banka-retired-banner code {
  background: rgba(0, 0, 0, 0.08);
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  font-weight: 600;
}

.portfolio-ui.page-banka .banka-retired-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  min-height: 56px;
}

.portfolio-ui.page-banka .banka-retired-text {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
}

.portfolio-ui.page-banka .banka-retired-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  background: #171310;
  color: #ffe08a;
  font: 700 0.7rem/1.3 var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.portfolio-ui.page-banka .banka-retired-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border: 1.5px solid #171310;
  border-radius: 6px;
  background: #fff;
  color: #111;
  font: 600 0.8rem/1.4 var(--font-mono);
  text-decoration: none !important;
  transition: background 160ms ease, color 160ms ease;
}

@media (hover: hover) and (pointer: fine) {
  .portfolio-ui.page-banka .banka-retired-link:hover {
    background: #171310;
    color: #ffe08a;
  }
}

/* ---------- Hero Section & Water Stage ---------- */
.portfolio-ui.page-banka .banka-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
}

.portfolio-ui.page-banka .banka-hero h1 {
  max-width: 15ch;
  margin-block: 1.4rem;
  font-size: clamp(2.8rem, 6.4vw, 5.8rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.portfolio-ui.page-banka .banka-sub {
  max-width: 52ch;
  font-size: clamp(1.05rem, 1.6vw, 1.28rem);
  line-height: 1.65;
}

.portfolio-ui.page-banka .banka-status {
  display: inline-block;
  margin-top: 1.4rem;
  padding: 0.5rem 0.8rem;
  border: 1px solid currentColor;
  border-radius: 8px;
  font: 500 0.69rem/1.6 var(--font-mono);
}

.portfolio-ui.page-banka .banka-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 2rem;
  margin-top: 1.8rem;
}

.portfolio-ui.page-banka .banka-action {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
  font: 500 0.78rem/1.5 var(--font-mono);
  text-decoration: none;
}

.portfolio-ui.page-banka .banka-action.site-action--button {
  padding: 1rem 1.2rem;
  background: var(--paper);
  color: var(--ink);
}

.portfolio-ui.page-banka .banka-hero-stage {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.portfolio-ui.page-banka .banka-hero-stage .bk-boat-stage {
  margin-top: 0;
  height: 280px;
  border: none;
  box-shadow: none;
  border-radius: 0;
  background: transparent;
}

.portfolio-ui.page-banka .banka-stage-caption {
  font: 500 0.69rem/1.6 var(--font-mono);
  color: #a0aec0;
}

/* ---------- Typography & Split Layout ---------- */
.portfolio-ui.page-banka .banka-split {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.28fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  align-items: start;
}

.portfolio-ui.page-banka .banka-copy h2,
.portfolio-ui.page-banka .banka-heading {
  max-width: 24ch;
  margin-block: 1.15rem 1.3rem;
  font-size: clamp(1.9rem, 3.6vw, 3.35rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
  font-weight: 400;
}

.portfolio-ui.page-banka .banka-copy p:not(.site-label),
.portfolio-ui.page-banka .banka-body {
  max-width: 64ch;
  font-size: 1rem;
  line-height: 1.75;
}

.portfolio-ui.page-banka .banka-copy p + p {
  margin-top: 1.15rem;
}

.portfolio-ui.page-banka .banka-copy ul,
.portfolio-ui.page-banka .banka-copy ol {
  max-width: 64ch;
  margin-block: 1.2rem;
  padding-left: 1.6rem;
  line-height: 1.7;
}

.portfolio-ui.page-banka .banka-copy li + li {
  margin-top: 0.5rem;
}

.portfolio-ui.page-banka .banka-credit {
  margin-top: 1.5rem;
  font-size: 0.82rem !important;
}

/* ---------- Monospace Terminal Cards & Figures ---------- */
.portfolio-ui.page-banka .banka-tile {
  overflow: hidden;
  border-radius: 10px;
}

.portfolio-ui.page-banka .banka-tile--terminal {
  border: 1px solid rgba(232, 184, 95, 0.25);
  border-radius: 8px;
  background: #111a24;
  color: #f5f1e9;
}

.portfolio-ui.page-banka .banka-terminal-bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid rgba(232, 184, 95, 0.2);
  color: #a7adb7;
  font: 500 0.8rem/1.4 var(--font-mono);
}

.portfolio-ui.page-banka .banka-terminal-controls {
  flex: 0 0 40px;
  height: 8px;
  background: radial-gradient(circle at 4px 4px, #e8b85f 3px, transparent 4px),
    radial-gradient(circle at 20px 4px, #7fbbae 3px, transparent 4px),
    radial-gradient(circle at 36px 4px, #e0a945 3px, transparent 4px);
}

.portfolio-ui.page-banka .banka-tile pre.code-tree {
  margin: 0;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.73rem;
  line-height: 1.6;
  color: #f2ead8;
  background: transparent;
}

.portfolio-ui.page-banka .banka-tile pre.code-tree code {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

.portfolio-ui.page-banka .banka-tile figcaption {
  padding: 0.85rem 1rem;
  border-top: 1px solid rgba(232, 184, 95, 0.2);
  font: 500 0.62rem/1.7 var(--font-mono);
  letter-spacing: 0.04em;
  color: #c4b9a2;
}

.portfolio-ui.page-banka .tree-dim {
  color: #718096;
}

.portfolio-ui.page-banka .tree-comment {
  color: #8c8471;
  font-style: italic;
}

.portfolio-ui.page-banka .tree-accent {
  color: #e8b85f;
  font-weight: 600;
}

.portfolio-ui.page-banka .tree-teal {
  color: #7fbbae;
}

/* ---------- Skills Table ---------- */
.portfolio-ui.page-banka .banka-skills {
  width: 100%;
  margin-block: 1.5rem;
  border-collapse: collapse;
  font-size: 0.94rem;
  line-height: 1.6;
}

.portfolio-ui.page-banka .banka-skills caption {
  text-align: left;
  margin-bottom: 1rem;
}

.portfolio-ui.page-banka .banka-skills th,
.portfolio-ui.page-banka .banka-skills td {
  padding: 0.8rem 1rem 0.8rem 0;
  border-bottom: 1px solid var(--site-line);
  vertical-align: top;
  text-align: left;
}

.portfolio-ui.page-banka .banka-skills th {
  font: 500 0.78rem/1.7 var(--font-mono);
}

.portfolio-ui.page-banka .banka-field-label {
  display: none;
}

/* ---------- Proof Numbers & Evidence ---------- */
.portfolio-ui.page-banka .banka-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 2rem;
  margin-block: 1.8rem 2rem;
}

.portfolio-ui.page-banka .banka-proof strong {
  display: block;
  margin-bottom: 0.8rem;
  font: 400 clamp(2.8rem, 5vw, 4.8rem)/1 var(--site-font-serif);
}

.portfolio-ui.page-banka .banka-proof p {
  max-width: 25ch;
  font-size: 0.94rem;
  line-height: 1.6;
}

.portfolio-ui.page-banka .banka-evidence-lines {
  display: grid;
  gap: 1rem;
  margin-bottom: 2rem;
}

.portfolio-ui.page-banka .banka-limits {
  padding-top: 1.5rem;
  border-top: 1px solid var(--site-line);
}

.portfolio-ui.page-banka .banka-limits h3 {
  font-size: 1.4rem;
  font-weight: 400;
}

.portfolio-ui.page-banka .banka-limits ul {
  max-width: 75ch;
  padding-left: 1.3rem;
  line-height: 1.7;
}

/* ---------- Section Navigator ---------- */
.portfolio-ui.page-banka {
  --banka-nav-offset: calc(var(--site-nav-height, 72px) + var(--banka-banner-height, 56px) + 6rem);
}

.portfolio-ui.page-banka :is(section[id], header[id]) {
  scroll-margin-top: var(--banka-nav-offset);
}

.portfolio-ui.page-banka .banka-navigator {
  position: sticky;
  top: calc(var(--site-nav-height, 72px) + var(--banka-banner-height, 56px));
  z-index: 90;
  overflow-x: auto;
  padding: 0.5rem;
  border-bottom: 1px solid rgba(14, 34, 53, 0.22);
  background: var(--banka-paper);
  color: var(--banka-navy);
  font: 500 0.7rem/1.5 var(--font-mono);
}

.portfolio-ui.page-banka .banka-navigator-list {
  display: flex;
  gap: 0.25rem;
  justify-content: center;
  width: max-content;
  min-width: 100%;
}

.portfolio-ui.page-banka .banka-navigator a {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  min-height: 44px;
  padding: 0.5rem 0.75rem;
  border-left: 2px solid transparent;
  text-decoration: none;
}

.portfolio-ui.page-banka .banka-navigator a[aria-current="location"] {
  border-left-color: currentColor;
  background: var(--banka-navy);
  color: var(--banka-paper);
}

.portfolio-ui.page-banka .banka-navigator a:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: -4px;
}

@media (hover: hover) and (pointer: fine) {
  .portfolio-ui.page-banka .banka-navigator a:hover {
    text-decoration: underline;
    text-underline-offset: 0.3em;
  }
}

.portfolio-ui.page-banka[data-banka-rail] .banka-navigator {
  position: fixed;
  top: calc(50% + var(--site-nav-height) / 2);
  right: 1rem;
  width: 154px;
  overflow-x: visible;
  border: 1px solid rgba(14, 34, 53, 0.22);
  border-radius: 12px;
  transform: translateY(-50%);
}

.portfolio-ui.page-banka[data-banka-rail] .banka-navigator-list {
  display: grid;
  width: 100%;
  min-width: 0;
}

/* ---------- Responsive Breakpoints ---------- */
@media (max-width: 900px) {
  .portfolio-ui.page-banka .banka-hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .portfolio-ui.page-banka .banka-split {
    grid-template-columns: minmax(0, 1fr);
  }
  .portfolio-ui.page-banka .banka-tile {
    width: 100%;
  }
}

@media (max-width: 700px) {
  .portfolio-ui.page-banka .banka-navigator a {
    padding-inline: 0.5rem;
    font-size: 0.65rem;
  }
  .portfolio-ui.page-banka .banka-proof {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.8rem;
  }
  .portfolio-ui.page-banka .banka-skills thead {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
  }
  .portfolio-ui.page-banka .banka-skills tbody,
  .portfolio-ui.page-banka .banka-skills tr,
  .portfolio-ui.page-banka .banka-skills th,
  .portfolio-ui.page-banka .banka-skills td {
    display: block;
  }
  .portfolio-ui.page-banka .banka-skills tr {
    padding-block: 0.8rem;
    border-bottom: 1px solid var(--site-line);
  }
  .portfolio-ui.page-banka .banka-skills th,
  .portfolio-ui.page-banka .banka-skills td {
    border: 0;
    padding: 0.3rem 0;
  }
  .portfolio-ui.page-banka .banka-field-label {
    display: inline;
    font: 500 0.69rem var(--font-mono);
  }
  .portfolio-ui.page-banka .banka-tile pre.code-tree {
    padding: 0.8rem;
    font-size: 0.7rem;
  }
  .portfolio-ui.page-banka .banka-hero-stage .bk-boat-stage {
    height: 210px;
  }
}