/* ===========================================================
   Billpadi Partner API Docs — Theme & Design System
   Typography: Plus Jakarta Sans (Headings) + Inter (Body) + JetBrains Mono (Code)
   Theme Modes: Light & Dark Mode with System Preference Support
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

/* ---------- Light Theme (Default) ---------- */
:root {
  --ink: #140C20;
  --ink-soft: #4E435E;
  --ink-muted: #746888;
  --text-main: #2E253E;
  --paper: #FAF9FD;
  --paper-raised: #FFFFFF;
  --paper-card: #FFFFFF;
  --line: #E8E2F2;
  --line-strong: #D4CBE2;

  /* Sidebar Theme (Midnight Plum) */
  --tape: #160B29;
  --tape-border: #2B194C;
  --tape-text: #D5CCE8;
  --tape-text-dim: #8475A4;

  /* Billpadi Brand Purples */
  --brand-purple: #632CA6;
  --brand-purple-deep: #4E1E87;
  --brand-purple-tint: #F3ECFC;
  --brand-purple-light: #8749DA;
  --brand-glow: rgba(99, 44, 166, 0.12);

  /* Brand Accents */
  --gold: #D9822B;
  --gold-tint: #FDF6EC;
  --mint: #10B981;
  --mint-tint: #ECFDF5;
  --red: #D93829;
  --red-tint: #FDF2F2;
  --blue: #2563EB;
  --blue-tint: #EFF6FF;

  /* Method Badges */
  --get: #2563EB;
  --get-tint: #EFF6FF;
  --get-border: #D6E4FF;
  --post: #632CA6;
  --post-tint: #F3ECFC;
  --post-border: #E4D5F8;
  --patch: #D9822B;
  --patch-tint: #FDF6EC;
  --patch-border: #FCE4C8;
  --delete: #D93829;
  --delete-tint: #FDF2F2;
  --delete-border: #FBD0D0;

  /* Tables & Elements */
  --th-bg: #F3EEF9;
  --td-bg: #FFFFFF;
  --td-text: #2E253E;
  --inline-code-bg: #F2EDF9;
  --inline-code-border: #E2D7F0;
  --inline-code-color: #3A1869;

  /* Callouts */
  --callout-border-info: #D9C7F3;
  --callout-border-warn: #F7DEBA;
  --callout-border-danger: #F8C9C5;
  --callout-border-ok: #B1E9CC;

  /* Typography Stacks */
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius: 6px;
  --sidebar-w: 276px;
  --toc-w: 220px;
}

/* ---------- Dark Theme (Explicit or Auto System Fallback) ---------- */
html[data-theme="dark"],
html:not([data-theme="light"]) {
  @media (prefers-color-scheme: dark) {
    --ink: #F5F1FD;
    --ink-soft: #B2A6C4;
    --ink-muted: #827499;
    --text-main: #DDD4EC;
    --paper: #0B0614;
    --paper-raised: #140B22;
    --paper-card: #180D28;
    --line: #261642;
    --line-strong: #3D2564;

    /* Sidebar Dark Obsidian Plum */
    --tape: #0C0617;
    --tape-border: #24133D;
    --tape-text: #E0D7F0;
    --tape-text-dim: #8E7EA6;

    /* Radiant Neon Purples */
    --brand-purple: #9D5CFF;
    --brand-purple-deep: #B885FF;
    --brand-purple-tint: rgba(157, 92, 255, 0.14);
    --brand-purple-light: #B885FF;
    --brand-glow: rgba(157, 92, 255, 0.22);

    /* Accents in Dark Mode */
    --gold: #F5A623;
    --gold-tint: rgba(245, 166, 35, 0.12);
    --mint: #34D399;
    --mint-tint: rgba(52, 211, 153, 0.12);
    --red: #F87171;
    --red-tint: rgba(248, 113, 113, 0.12);
    --blue: #60A5FA;
    --blue-tint: rgba(96, 165, 250, 0.12);

    /* Method Badges */
    --get: #60A5FA;
    --get-tint: rgba(96, 165, 250, 0.15);
    --get-border: rgba(96, 165, 250, 0.3);
    --post: #C084FC;
    --post-tint: rgba(192, 132, 252, 0.15);
    --post-border: rgba(192, 132, 252, 0.3);
    --patch: #FBBF24;
    --patch-tint: rgba(251, 191, 36, 0.15);
    --patch-border: rgba(251, 191, 36, 0.3);
    --delete: #F87171;
    --delete-tint: rgba(248, 113, 113, 0.15);
    --delete-border: rgba(248, 113, 113, 0.3);

    /* Tables & Elements */
    --th-bg: #180D28;
    --td-bg: #120A20;
    --td-text: #DDD4EC;
    --inline-code-bg: rgba(157, 92, 255, 0.15);
    --inline-code-border: rgba(157, 92, 255, 0.3);
    --inline-code-color: #E2D4F8;

    /* Callouts */
    --callout-border-info: rgba(157, 92, 255, 0.35);
    --callout-border-warn: rgba(245, 166, 35, 0.35);
    --callout-border-danger: rgba(248, 113, 113, 0.35);
    --callout-border-ok: rgba(52, 211, 153, 0.35);
  }
}

html[data-theme="dark"] {
  --ink: #F5F1FD;
  --ink-soft: #B2A6C4;
  --ink-muted: #827499;
  --text-main: #DDD4EC;
  --paper: #0B0614;
  --paper-raised: #140B22;
  --paper-card: #180D28;
  --line: #261642;
  --line-strong: #3D2564;

  /* Sidebar Dark Obsidian Plum */
  --tape: #0C0617;
  --tape-border: #24133D;
  --tape-text: #E0D7F0;
  --tape-text-dim: #8E7EA6;

  /* Radiant Neon Purples */
  --brand-purple: #9D5CFF;
  --brand-purple-deep: #B885FF;
  --brand-purple-tint: rgba(157, 92, 255, 0.14);
  --brand-purple-light: #B885FF;
  --brand-glow: rgba(157, 92, 255, 0.22);

  /* Accents in Dark Mode */
  --gold: #F5A623;
  --gold-tint: rgba(245, 166, 35, 0.12);
  --mint: #34D399;
  --mint-tint: rgba(52, 211, 153, 0.12);
  --red: #F87171;
  --red-tint: rgba(248, 113, 113, 0.12);
  --blue: #60A5FA;
  --blue-tint: rgba(96, 165, 250, 0.12);

  /* Method Badges */
  --get: #60A5FA;
  --get-tint: rgba(96, 165, 250, 0.15);
  --get-border: rgba(96, 165, 250, 0.3);
  --post: #C084FC;
  --post-tint: rgba(192, 132, 252, 0.15);
  --post-border: rgba(192, 132, 252, 0.3);
  --patch: #FBBF24;
  --patch-tint: rgba(251, 191, 36, 0.15);
  --patch-border: rgba(251, 191, 36, 0.3);
  --delete: #F87171;
  --delete-tint: rgba(248, 113, 113, 0.15);
  --delete-border: rgba(248, 113, 113, 0.3);

  /* Tables & Elements */
  --th-bg: #180D28;
  --td-bg: #120A20;
  --td-text: #DDD4EC;
  --inline-code-bg: rgba(157, 92, 255, 0.15);
  --inline-code-border: rgba(157, 92, 255, 0.3);
  --inline-code-color: #E2D4F8;

  /* Callouts */
  --callout-border-info: rgba(157, 92, 255, 0.35);
  --callout-border-warn: rgba(245, 166, 35, 0.35);
  --callout-border-danger: rgba(248, 113, 113, 0.35);
  --callout-border-ok: rgba(52, 211, 153, 0.35);
}

/* ---------- Global Reset & Body ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  transition: background-color .18s ease, color .18s ease;
}

a { color: var(--brand-purple); text-decoration: none; font-weight: 500; transition: color .12s ease; }
a:hover { text-decoration: underline; color: var(--brand-purple-deep); }

::selection { background: #EADFFB; color: #140C20; }
html[data-theme="dark"] ::selection { background: #632CA6; color: #FFFFFF; }

/* ---------- Layout shell ---------- */
.shell {
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar: Billpadi Tape ---------- */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--tape);
  color: var(--tape-text);
  overflow-y: auto;
  padding: 0 0 40px;
  border-right: 1px solid var(--tape-border);
  z-index: 40;
  transition: background-color .18s ease, border-color .18s ease;
}
.sidebar::-webkit-scrollbar { width: 7px; }
.sidebar::-webkit-scrollbar-thumb { background: #301B54; border-radius: 6px; }

.tape-edge {
  height: 14px;
  width: 100%;
  background-image: radial-gradient(circle at 10px 7px, var(--paper) 5px, transparent 5.5px);
  background-size: 20px 14px;
  background-repeat: repeat-x;
  transition: background-image .18s ease;
}

.brand {
  padding: 20px 20px 16px;
  border-bottom: 1px dashed var(--tape-border);
}
.brand-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.brand-header-row .brand-logo-card {
  margin-bottom: 0;
}
.brand-theme-toggle {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--tape-border);
  color: #FFD166;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  margin: 0 !important;
  line-height: 0 !important;
  cursor: pointer;
  transition: all .18s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  user-select: none;
}
.brand-theme-toggle:hover {
  background: var(--brand-purple);
  color: #FFFFFF;
  border-color: var(--brand-purple);
  transform: scale(1.08);
}
.brand-theme-toggle svg {
  display: block;
  width: 18px;
  height: 18px;
  stroke-width: 2.2;
}
.brand-theme-toggle svg.icon-moon {
  transform: translate(0.8px, -0.4px);
}
.brand-theme-toggle svg.icon-sun {
  transform: none;
}
html[data-theme="dark"] .brand-theme-toggle {
  color: #F5A623;
}
.brand-logo-card {
  background: #FFFFFF;
  padding: 8px 12px;
  border-radius: 6px;
  display: inline-block;
  margin-bottom: 10px;
  box-shadow: 0 3px 10px rgba(0,0,0,0.22);
}
.brand-logo {
  height: 26px;
  width: auto;
  display: block;
}

/* ---------- Floating Chat-Widget Style FAB (Bottom Right) ---------- */
.floating-theme-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 999;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #140B22;
  border: 1.5px solid #3D2564;
  color: #FFD166;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.32), 0 0 14px rgba(157, 92, 255, 0.22);
  cursor: pointer;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0 !important;
  margin: 0 !important;
  line-height: 0 !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform .22s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow .2s ease, border-color .2s ease, background-color .2s ease, color .2s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.floating-theme-fab:hover {
  transform: scale(1.1);
  border-color: var(--brand-purple);
  box-shadow: 0 6px 26px rgba(157, 92, 255, 0.45), 0 0 18px var(--brand-glow);
}
.floating-theme-fab:active {
  transform: scale(0.92);
}
html[data-theme="dark"] .floating-theme-fab {
  background: #180D28;
  border-color: rgba(245, 166, 35, 0.35);
  color: #F5A623;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5), 0 0 16px rgba(245, 166, 35, 0.25);
}
html[data-theme="dark"] .floating-theme-fab:hover {
  border-color: #F5A623;
  box-shadow: 0 6px 26px rgba(245, 166, 35, 0.45), 0 0 20px rgba(245, 166, 35, 0.35);
}
.floating-theme-fab .fab-icon {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100% !important;
  height: 100% !important;
  line-height: 0 !important;
}
.floating-theme-fab svg {
  display: block;
  width: 22px;
  height: 22px;
  stroke-width: 2.2;
  transition: transform .25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.floating-theme-fab:hover svg.icon-sun {
  transform: rotate(20deg) scale(1.06);
}
.floating-theme-fab:hover svg.icon-moon {
  transform: rotate(-12deg) scale(1.06) translate(0.9px, -0.45px);
}

/* Optical centering for crescent moon curve across components */
.floating-theme-fab svg.icon-moon {
  transform: translate(0.9px, -0.45px);
}
.brand-theme-toggle svg.icon-moon {
  transform: translate(0.8px, -0.4px);
}
.theme-quick-btn svg.icon-moon {
  transform: translate(0.8px, -0.4px);
}
.theme-btn svg.icon-moon {
  transform: translate(0.4px, -0.2px);
}
.brand-mark {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--gold);
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18.5px;
  color: #FFFFFF;
  letter-spacing: -.02em;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--tape-text-dim);
  margin-top: 4px;
}

.nav {
  padding: 16px 12px 0;
}
.nav-group {
  margin-bottom: 8px;
}
.nav-group-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--tape-text-dim);
  padding: 8px 10px 4px;
  font-weight: 600;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6.5px 10px;
  color: var(--tape-text);
  font-size: 13px;
  border-radius: 4px;
  transition: background .12s, color .12s;
  font-weight: 400;
}
.nav-link:hover {
  background: rgba(255,255,255,0.06);
  color: #FFFFFF;
  text-decoration: none;
}
.nav-link.active {
  background: var(--brand-purple);
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(99, 44, 166, 0.35);
}
.dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--tape-text-dim);
  flex: none;
}
.nav-link.active .dot { background: #FFFFFF; }

.nav-foot {
  padding: 18px 20px 0;
  margin-top: 16px;
  border-top: 1px dashed var(--tape-border);
}
.nav-foot-line {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
  color: var(--tape-text-dim);
}

/* ---------- Theme Switcher Widget in Sidebar & Topbar ---------- */
.theme-switch-wrap {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--tape-border);
}
.theme-switch-label {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--tape-text-dim);
  margin-bottom: 7px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.theme-switch {
  display: flex;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--tape-border);
  border-radius: 20px;
  padding: 2.5px;
  gap: 2px;
}
.theme-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--tape-text-dim);
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 4px 6px;
  border-radius: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all .14s ease;
}
.theme-btn:hover {
  color: #FFFFFF;
}
.theme-btn.active {
  background: var(--brand-purple);
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}

/* ---------- Main content ---------- */
.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-width: 0;
  display: flex;
  justify-content: center;
}
.content {
  width: 100%;
  max-width: 780px;
  padding: 56px 48px 120px;
}
.content-with-toc {
  display: flex;
  gap: 48px;
  align-items: flex-start;
  max-width: 980px;
}
.content-with-toc .article { max-width: 720px; }
.toc {
  position: sticky;
  top: 56px;
  width: var(--toc-w);
  flex: none;
  padding-top: 6px;
}
.toc-title {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.toc a {
  display: block;
  font-size: 12.5px;
  color: var(--ink-soft);
  padding: 4px 0;
  border-left: 2px solid var(--line);
  padding-left: 10px;
  transition: color .12s, border-left-color .12s;
}
.toc a:hover {
  color: var(--brand-purple);
  text-decoration: none;
  border-left-color: var(--brand-purple);
}

/* ---------- Eyebrow / headings ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--brand-purple);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  font-weight: 600;
}
.eyebrow::before {
  content: "";
  width: 16px; height: 2px;
  background: var(--brand-purple);
  border-radius: 2px;
}

h1 {
  font-family: var(--font-display);
  font-size: 34px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -.025em;
  margin: 0 0 14px;
  color: var(--ink);
}
h2 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.018em;
  margin: 48px 0 14px;
  padding-top: 20px;
  border-top: 1px dashed var(--line-strong);
  color: var(--ink);
}
.article > h2:first-of-type { border-top: none; padding-top: 0; margin-top: 34px; }
h3 {
  font-family: var(--font-display);
  font-size: 16.5px;
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 28px 0 10px;
  color: var(--ink);
}
p { margin: 0 0 15px; color: var(--text-main); }
.lede {
  font-size: 17px;
  color: var(--ink-soft);
  margin-bottom: 24px;
  line-height: 1.6;
}
ul, ol { margin: 0 0 16px; padding-left: 22px; color: var(--text-main); }
li { margin-bottom: 6px; }
strong { color: var(--ink); font-weight: 600; }

code {
  font-family: var(--font-mono);
  font-size: .87em;
  background: var(--inline-code-bg);
  border: 1px solid var(--inline-code-border);
  padding: 1.5px 5.5px;
  border-radius: 3px;
  color: var(--inline-code-color);
  font-variant-ligatures: contextual;
}
hr { border: none; border-top: 1px dashed var(--line-strong); margin: 36px 0; }

/* ---------- Endpoint header ---------- */
.endpoint {
  margin: 34px 0 22px;
}
.endpoint-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}
.method {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .04em;
  padding: 4px 9px;
  border-radius: 4px;
}
.method-get { background: var(--get-tint); color: var(--get); border: 1px solid var(--get-border); }
.method-post { background: var(--post-tint); color: var(--post); border: 1px solid var(--post-border); }
.method-patch { background: var(--patch-tint); color: var(--patch); border: 1px solid var(--patch-border); }
.method-delete { background: var(--delete-tint); color: var(--delete); border: 1px solid var(--delete-border); }

.path {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink);
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  padding: 5px 11px;
  border-radius: 4px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.endpoint-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17.5px;
  letter-spacing: -.01em;
  margin: 0 0 6px;
  color: var(--ink);
}
.badges { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0 4px; }
.badge {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  padding: 3px 8px;
  border-radius: 20px;
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
  background: var(--paper-raised);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.badge.req-key::before { content: "🔑"; font-size: 10px; }
.badge.req-sig::before { content: "✒"; font-size: 10px; }
.badge.req-jwt::before { content: "🪪"; font-size: 10px; }
.badge.req-public::before { content: "○"; font-size: 10px; }

/* ---------- Tables ---------- */
.table-wrap {
  overflow-x: auto;
  margin: 0 0 22px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
thead th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--th-bg);
  padding: 9px 12px;
  border-bottom: 1px solid var(--line-strong);
}
tbody td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--td-text);
  background: var(--td-bg);
}
tbody tr:last-child td { border-bottom: none; }
td code { white-space: nowrap; }
.req-yes { color: var(--brand-purple); font-weight: 600; font-size: 12px; font-family: var(--font-mono); }
.req-no { color: var(--ink-soft); font-size: 12px; font-family: var(--font-mono); }

/* ---------- Code blocks ---------- */
.code-card {
  background: var(--tape);
  border-radius: 6px;
  overflow: hidden;
  margin: 0 0 22px;
  border: 1px solid var(--tape-border);
  box-shadow: 0 3px 14px rgba(0, 0, 0, 0.18);
}
.code-tabs {
  display: flex;
  gap: 2px;
  background: rgba(0, 0, 0, 0.35);
  padding: 6px 6px 0;
  border-bottom: 1px solid var(--tape-border);
}
.code-tab {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--tape-text-dim);
  padding: 8px 14px 9px;
  cursor: pointer;
  border-radius: 4px 4px 0 0;
  user-select: none;
  transition: color .12s, background .12s;
}
.code-tab:hover { color: #FFFFFF; }
.code-tab.active { background: var(--tape); color: #FFFFFF; font-weight: 600; }
.code-body { position: relative; }
.code-panel { display: none; padding: 16px 18px; margin: 0; }
.code-panel.active { display: block; }
.code-panel pre {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: #E3DAF2;
  overflow-x: auto;
  font-variant-ligatures: contextual;
}

.copy-btn {
  position: absolute;
  top: 10px; right: 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--tape-text-dim);
  background: transparent;
  border: 1px solid #331A56;
  border-radius: 4px;
  padding: 4px 9px;
  cursor: pointer;
  transition: all .12s;
}
.copy-btn:hover { color: #fff; border-color: var(--brand-purple); background: #22113D; }

.response-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 6px 10px;
  background: rgba(0, 0, 0, 0.35);
  color: var(--tape-text-dim);
  border-bottom: 1px dashed var(--tape-border);
}
.response-tag .chip {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--mint);
}
.response-tag.err .chip { background: var(--red); }

/* ---------- Callouts ---------- */
.callout {
  border-radius: 6px;
  border: 1px solid var(--line-strong);
  padding: 14px 16px;
  margin: 0 0 22px;
  font-size: 13.5px;
  position: relative;
  padding-left: 44px;
  background: var(--paper-raised);
}
.callout::before {
  position: absolute; left: 16px; top: 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
}
.callout p:last-child { margin-bottom: 0; }
.callout-info { background: var(--brand-purple-tint); border-color: var(--callout-border-info); }
.callout-info::before { content: "i"; color: var(--brand-purple); }
.callout-warn { background: var(--gold-tint); border-color: var(--callout-border-warn); }
.callout-warn::before { content: "!"; color: var(--gold); }
.callout-danger { background: var(--red-tint); border-color: var(--callout-border-danger); }
.callout-danger::before { content: "×"; color: var(--red); }
.callout-ok { background: var(--mint-tint); border-color: var(--callout-border-ok); }
.callout-ok::before { content: "✓"; color: var(--mint); }

/* ---------- Cards / grids ---------- */
.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 22px 0 30px;
}
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }

.product-card {
  display: block;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  border-radius: 6px;
  padding: 16px 18px;
  transition: border-color .15s, transform .15s, box-shadow .15s;
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}
.product-card:hover {
  text-decoration: none;
  border-color: var(--brand-purple);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px var(--brand-glow);
}
.product-card .pc-num {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}
.product-card h4 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  margin: 0 0 6px;
  color: var(--ink);
}
.product-card p {
  font-size: 12.5px;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- Receipt strip (hero stat / summary) ---------- */
.receipt {
  font-family: var(--font-mono);
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 16px 20px;
  margin: 26px 0 30px;
  font-size: 12.5px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.02);
}
.receipt-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--ink-soft);
}
.receipt-row:last-child { border-bottom: none; }
.receipt-row b { color: var(--ink); font-weight: 600; }

/* ---------- Top bar (mobile) ---------- */
.topbar {
  display: none;
  position: sticky; top: 0;
  background: var(--tape);
  color: #fff;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  z-index: 50;
  font-family: var(--font-display);
  font-weight: 700;
  border-bottom: 1px solid var(--tape-border);
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
}
.topbar button {
  background: none; border: 1px solid #3B1E68; color: #fff;
  border-radius: 4px; padding: 6px 10px; font-family: var(--font-mono); font-size: 12px;
  cursor: pointer;
}
.topbar .theme-quick-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 6px;
  color: #FFD166;
  border: 1px solid var(--tape-border);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  transition: all .15s ease;
}
.topbar .theme-quick-btn:hover {
  background: var(--brand-purple);
  color: #FFFFFF;
}
.topbar .theme-quick-btn svg {
  display: block;
  width: 17px;
  height: 17px;
  stroke-width: 2.2;
}
html[data-theme="dark"] .topbar .theme-quick-btn {
  color: #F5A623;
}

/* ---------- Prev/next footer nav ---------- */
.pagenav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 56px;
  padding-top: 22px;
  border-top: 1px dashed var(--line-strong);
}
.pagenav a {
  flex: 1;
  border: 1px solid var(--line-strong);
  background: var(--paper-raised);
  border-radius: 6px;
  padding: 12px 16px;
  color: var(--ink);
  transition: border-color .15s, transform .15s;
}
.pagenav a:hover { border-color: var(--brand-purple); text-decoration: none; transform: translateY(-1px); }
.pagenav .dir {
  font-family: var(--font-mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--brand-purple);
  font-weight: 600;
  display: block;
  margin-bottom: 3px;
}
.pagenav .to-right { text-align: right; }

/* ---------- Field list (compact key/desc) ---------- */
.field {
  display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line);
}
.field:last-child { border-bottom: none; }
.field-name { font-family: var(--font-mono); font-size: 13px; color: var(--ink); flex: none; width: 170px; }
.field-desc { font-size: 13px; color: var(--ink-soft); }

@media (max-width: 980px) {
  :root { --sidebar-w: 240px; }
  .content { padding: 40px 28px 100px; }
}
@media (max-width: 860px) {
  .sidebar { transform: translateX(-100%); transition: transform .18s ease; box-shadow: 0 0 0 2000px rgba(0,0,0,0); }
  .sidebar.open { transform: translateX(0); box-shadow: 0 0 40px rgba(0,0,0,.5); }
  .main { margin-left: 0; }
  .topbar { display: flex; }
  .content-with-toc { flex-direction: column; }
  .toc { display: none; }
}