/* zplCore.com SDK API Reference — Stripe 3-Column Code-Split + Compact High-Density Typography */
:root {
  --font-sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-code: "JetBrains Mono", "Cascadia Code", "Segoe UI Mono", "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.layout {
  max-width: 1540px;
  grid-template-columns: minmax(0, 1fr);
  padding: 0 max(16px, env(safe-area-inset-left, 0px));
}
.layout > nav.side {
  display: none;
}
.layout > main#top {
  padding: 12px 0 40px 0;
  min-width: 0;
}

code {
  font-family: var(--font-code);
  font-size: 0.85em;
  font-weight: 500;
  font-variant-ligatures: none;
  background: color-mix(in srgb, var(--line) 55%, transparent);
  padding: 0.1em 0.34em;
  border-radius: 4px;
}
.api-tbl code,
.d2-card code,
.api-ns-clean-name code,
.api-entry-top code {
  background: transparent;
  padding: 0;
  font-size: 12.5px;
}

/* ===================================================================== */
/* STRIPE 3-COLUMN SHELL                                                 */
/* ===================================================================== */
.d2-shell {
  display: grid;
  grid-template-columns: 265px minmax(0, 1fr) 360px;
  gap: 0;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  height: calc(100vh - 88px);
  min-height: 600px;
  box-shadow: var(--card-shadow);
}

/* Left Column: Compact Search + Filter Pills + Grouped Collapsible Tree */
.d2-nav {
  border-right: 1px solid var(--line);
  background: var(--bg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.d2-nav-top {
  padding: 10px 10px 8px;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.d2-search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.d2-search-wrap input {
  width: 100%;
  padding: 6px 24px 6px 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg2);
  color: var(--fg);
  font: 12.5px var(--font-sans);
}
.d2-search-wrap input:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}
.d2-kbd {
  position: absolute;
  right: 7px;
  font: 600 10px/1 var(--font-sans);
  padding: 2px 4px;
  border-radius: 4px;
  border: 1px solid var(--line);
  color: var(--muted);
  pointer-events: none;
}
.d2-pills {
  display: flex;
  gap: 4px;
  margin-top: 6px;
}
.d2-kbtn {
  flex: 1;
  border: 1px solid var(--line);
  background: var(--bg2);
  color: var(--muted);
  font: 600 11px/1.15 var(--font-sans);
  padding: 4px 3px;
  border-radius: 5px;
  cursor: pointer;
}
.d2-kbtn:hover {
  border-color: var(--accent);
  color: var(--fg);
}
.d2-kbtn.active {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.d2-overview-wrap {
  padding: 8px 10px 2px;
}
.api-overview-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg2);
  color: var(--fg);
  font: 600 12px/1.25 var(--font-sans);
  cursor: pointer;
  text-align: left;
}
.api-overview-btn:hover {
  border-color: var(--accent);
}
.api-overview-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, var(--bg2));
}

.d2-nav-list {
  flex: 1;
  overflow-y: auto;
  padding: 4px 10px 22px;
  display: flex;
  flex-direction: column;
  gap: 1px;
}

/* Category Section Headers in Left Sidebar */
.api-cat-hdr {
  font: 700 10px/1.2 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  padding: 11px 5px 3px;
  margin-top: 1px;
}
.api-cat-hdr:first-child {
  padding-top: 4px;
}

/* Namespace Accordion Card */
details.api-ns-tree {
  margin: 1px 0 1px 8px;
  border-radius: 7px;
  border: 1px solid transparent;
  transition: background .12s, border-color .12s;
}
details.api-ns-tree.ns-sub {
  margin-left: 20px;
}
details.api-ns-tree[open] {
  background: var(--bg2);
  border-color: var(--line);
  margin-top: 3px;
  margin-bottom: 3px;
}
details.api-ns-tree > summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 5px 7px;
  border-radius: 6px;
  font: 600 12px/1.25 var(--font-sans);
  color: var(--fg);
  cursor: pointer;
  user-select: none;
}
details.api-ns-tree > summary::-webkit-details-marker {
  display: none;
}
details.api-ns-tree > summary:hover {
  background: color-mix(in srgb, var(--line) 65%, transparent);
}
.api-ns-sum-left {
  display: flex;
  align-items: center;
  gap: 5px;
  min-width: 0;
}
.api-chev {
  width: 12px;
  height: 12px;
  color: var(--muted);
  transition: transform .15s ease;
  flex-shrink: 0;
}
details.api-ns-tree[open] > summary .api-chev {
  transform: rotate(90deg);
  color: var(--accent);
}
.api-ns-cnt {
  font: 600 10px/1 var(--font-sans);
  color: var(--muted);
  background: var(--line);
  padding: 2px 6px;
  border-radius: 99px;
  flex-shrink: 0;
}
details.api-ns-tree[open] > summary .api-ns-cnt {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
}

/* Sub-group headers & clear tree-indentation inside an open namespace */
.api-ns-items {
  display: flex;
  flex-direction: column;
  margin: 2px 6px 8px 18px;
  padding: 2px 0 4px 12px;
  border-left: 2px solid color-mix(in srgb, var(--accent2) 32%, var(--line));
}
.api-subkind-hdr {
  font: 700 9.5px/1.15 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  padding: 6px 4px 2px;
}

.api-tlink {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 3.5px 6px 3.5px 8px;
  border-radius: 5px;
  border: none;
  background: transparent;
  color: var(--fg);
  font: 500 11.75px/1.3 var(--font-sans);
  text-align: left;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.api-tlink:hover {
  background: color-mix(in srgb, var(--line) 60%, transparent);
}
.api-tlink.active {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  font-weight: 600;
}
.api-tlink-name {
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Tiny 1-Letter Kind Badge (C, R, S, I, E) */
.api-kdot {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border-radius: 3.5px;
  font: 700 9px/1 var(--font-sans);
  flex-shrink: 0;
}
.api-kdot.c { background: color-mix(in srgb, var(--accent2) 15%, transparent); color: var(--accent2); }
.api-kdot.r { background: color-mix(in srgb, #0d9488 16%, transparent); color: #0d9488; }
.api-kdot.s { background: color-mix(in srgb, #d97706 16%, transparent); color: #d97706; }
.api-kdot.i { background: color-mix(in srgb, #7c3aed 16%, transparent); color: #7c3aed; }
.api-kdot.e { background: color-mix(in srgb, var(--accent) 16%, transparent); color: #c2570a; }
:root[data-theme="dark"] .api-kdot.r { color: #2dd4bf; }
:root[data-theme="dark"] .api-kdot.s { color: #fbbf24; }
:root[data-theme="dark"] .api-kdot.i { color: #c4b5fd; }
:root[data-theme="dark"] .api-kdot.e { color: #f59a4a; }

/* Center Column: Active Type / Namespace / Overview */
.d2-center {
  overflow-y: auto;
  padding: 20px 26px 44px;
}
.api-single-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}
.api-bc {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 500 12.5px var(--font-sans);
  color: var(--muted);
}
.api-bc-ns {
  color: var(--accent2);
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  text-decoration: underline;
}
.api-single-title {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  margin: 0 0 8px;
}
.api-single-title h1 {
  font: 700 23px/1.2 var(--font-sans);
  letter-spacing: -0.015em;
  margin: 0;
  color: var(--fg);
}

/* Entry Point Cards on Overview */
.api-entry-grid {
  margin: 12px 0 22px;
}
.api-entry-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-decoration: none !important;
  color: var(--fg);
  transition: border-color .15s, transform .15s;
  cursor: pointer;
  padding: 12px 14px;
}
.api-entry-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
  text-decoration: none !important;
}
.api-entry-top {
  font-size: 11px;
  color: var(--muted);
}
.api-entry-card h3 {
  margin: 1px 0 0;
  font: 700 15px/1.25 var(--font-sans);
  color: var(--accent2);
}
.api-entry-card p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.45;
  color: var(--muted);
}

/* Clean Namespace Overview Table */
.api-ns-clean-row {
  cursor: pointer;
}
.api-ns-clean-row:hover td {
  background: color-mix(in srgb, var(--line) 45%, transparent);
}
.api-ns-clean-name,
.api-ns-clean-name code {
  font: 600 13px var(--font-sans);
  color: var(--accent2);
  white-space: nowrap;
}

/* Subtle Kind Badges */
.api-kind {
  display: inline-flex;
  align-items: center;
  font: 600 11px/1.15 var(--font-sans);
  padding: 2.5px 8px;
  border-radius: 5px;
  white-space: nowrap;
}
.k-class { background: color-mix(in srgb, var(--accent2) 14%, transparent); color: var(--accent2); }
.k-static { background: color-mix(in srgb, #7c3aed 15%, transparent); color: #8b5cf6; }
.k-record { background: color-mix(in srgb, #0d9488 15%, transparent); color: #0d9488; }
.k-struct { background: color-mix(in srgb, #d97706 16%, transparent); color: #d97706; }
.k-iface { background: color-mix(in srgb, #2563eb 15%, transparent); color: #3b82f6; }
.k-enum { background: color-mix(in srgb, var(--accent) 15%, transparent); color: #c2570a; }
:root[data-theme="dark"] .k-record { color: #2dd4bf; }
:root[data-theme="dark"] .k-struct { color: #fbbf24; }
:root[data-theme="dark"] .k-static { color: #c4b5fd; }
:root[data-theme="dark"] .k-enum { color: #f59a4a; }

.api-decl {
  background: var(--code-bg);
  color: var(--code-fg);
  padding: 10px 14px;
  border-radius: 9px;
  font: 12.5px/1.5 var(--font-code);
  font-variant-ligatures: none;
  overflow-x: auto;
  margin: 10px 0 14px;
  border: 1px solid #1f2738;
}
.api-decl code {
  background: transparent;
  padding: 0;
  color: inherit;
  font-size: inherit;
}
.api-decl a {
  color: #82aaff;
  text-decoration: underline;
}
.api-doc {
  margin: 6px 0 12px;
  font-size: 13.75px;
  line-height: 1.55;
}
.api-remarks {
  margin: 8px 0 14px;
  font-size: 13px;
  padding: 9px 13px;
}
.api-subh {
  margin: 18px 0 6px;
  font: 700 11.5px/1.2 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--muted);
}
.api-tbl {
  margin-bottom: 12px;
}
.api-tbl td, .api-tbl th {
  padding: 6.5px 10px;
  font-size: 13px;
  line-height: 1.45;
}
.api-mname, .api-msig {
  white-space: normal;
  min-width: 190px;
  font-family: var(--font-code);
  font-size: 12.5px;
}
.api-mname a code {
  font-weight: 600;
  color: var(--accent2);
}
.api-mtype {
  white-space: nowrap;
  font-family: var(--font-code);
  font-size: 12px;
}
.api-mod {
  font: 600 10px/1 var(--font-sans);
  color: var(--muted);
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--bg);
  margin-right: 4px;
}
.api-acc {
  font: 11px var(--font-code);
  color: var(--muted);
  white-space: nowrap;
}
.api-mlink {
  color: var(--muted);
  text-decoration: none !important;
  margin-right: 4px;
}
.api-mlink:hover {
  color: var(--accent);
}

/* Right Column: Sticky Dark Stripe Code & Member Summary Panel */
.d2-code-col {
  background: #0d1322;
  color: #e2e8f0;
  border-left: 1px solid #1e293b;
  padding: 16px 16px;
  overflow-y: auto;
}
.d2-card {
  background: #131c31;
  border: 1px solid #23304d;
  border-radius: 9px;
  padding: 11px 13px;
  margin-bottom: 11px;
}
.d2-card h4 {
  margin: 0 0 6px;
  font: 700 10px/1.2 var(--font-sans);
  text-transform: uppercase;
  letter-spacing: .06em;
  color: #94a3b8;
}
.d2-card pre {
  margin: 0;
  font: 11.75px/1.5 var(--font-code);
  color: #93c5fd;
  white-space: pre-wrap;
  word-break: break-word;
}
.d2-quick-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.d2-quick-list li {
  padding: 3px 0;
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
  font: 11.75px/1.35 var(--font-code);
}
.d2-quick-list li:last-child {
  border-bottom: none;
}
.d2-quick-list a {
  color: #93c5fd;
  text-decoration: none;
}
.d2-quick-list a:hover {
  color: #fff;
  text-decoration: underline;
}

@media (max-width: 1100px) {
  .d2-shell {
    grid-template-columns: 260px minmax(0, 1fr);
    height: auto;
  }
  .d2-code-col {
    grid-column: 1 / -1;
    border-left: none;
    border-top: 1px solid #1e293b;
  }
}
@media (max-width: 760px) {
  .d2-shell {
    grid-template-columns: 1fr;
  }
}