@import url("https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap");

/* ==========================================================================
   GMEX DSA SANDBOX - LIGHT MODE STYLESHEET
   Clean, modern, high-contrast, responsive light design system.
   ========================================================================== */

:root {
  /* Color Palette - Premium Light Theme */
  --bg-app: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-hover: #e2e8f0;
  
  --border-color: #cbd5e1;
  --border-subtle: #e2e8f0;
  --border-focus: #3b82f6;

  --text-main: #0f172a;
  --text-muted: #475569;
  --text-light: #64748b;
  --text-white: #ffffff;

  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-900: #1e3a8a;

  --accent-teal: #0d9488;
  --accent-purple: #7c3aed;
  
  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  --success-text: #15803d;
  --success-solid: #16a34a;

  --warning-bg: #fffbeb;
  --warning-border: #fef08a;
  --warning-text: #b45309;
  --warning-solid: #d97706;

  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  --danger-text: #b91c1c;
  --danger-solid: #dc2626;

  /* Elevation Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

/* Reset & Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
}

html, body {
  height: 100%;
  overflow: hidden;
  font-family: "Poppins", sans-serif !important;
  background-color: #fff;
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary-600);
  text-decoration: none;
  font-weight: 500;
}
a:hover {
  text-decoration: underline;
}

/* Layout: fixed left guide, article scrolls on its own */
.app-container,
.doc-body {
  height: 100%;
  min-height: 0;
}

.doc-body {
  display: flex;
}

.doc-toc-toggle {
  display: none;
}

.toc-backdrop {
  display: none;
}

.toc-drawer {
  order: -1;
  display: flex;
  flex-direction: column;
  flex: 0 0 300px;
  width: 300px;
  height: 100%;
  overflow: hidden;
  background: #fff;
  border-right: 1px solid #ececec;
  transition: width 0.2s ease, flex-basis 0.2s ease;
}

.side-brand {
  flex: 0 0 auto;
  z-index: 1;
  padding: 1.15rem 1.25rem 0.85rem;
  background: #fff;
  border-bottom: 1px solid #ececec;
}

.side-brand img {
  display: block;
  height: 28px;
  width: auto;
  max-width: 160px;
}

.toc-list {
  counter-reset: guide-step;
  flex: 1 1 auto;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 0.65rem 0 2rem;
}

.toc-group-label {
  margin: 1.15rem 0 0.35rem;
  padding: 0 1.15rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #94a3b8;
}

.toc-drawer .nav-tab {
  counter-increment: guide-step;
  background: transparent;
  border: 0;
  border-radius: 8px;
  box-shadow: none;
  width: calc(100% - 1rem);
  min-height: 0;
  margin: 1px 0.5rem;
  padding: 0.42rem 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-align: left;
  font-family: inherit;
  cursor: pointer;
  color: #334155;
}

.toc-drawer .nav-tab::before {
  content: counter(guide-step);
  flex: 0 0 auto;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 999px;
  background: #f1f5f9;
  color: #64748b;
  font-size: 0.7rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.toc-drawer .nav-tab:hover {
  background: #f8fafc;
  color: #0f172a;
}

.toc-drawer .nav-tab:focus-visible {
  outline: 2px solid var(--primary-600);
  outline-offset: -2px;
}

.toc-drawer .nav-tab.active {
  background: #eff6ff;
  box-shadow: none;
  color: #1d4ed8;
}

.toc-drawer .nav-tab.active::before {
  background: #2563eb;
  color: #fff;
}

.nav-tab-index {
  display: none;
}

.nav-tab-title {
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.3;
  color: inherit;
}

.toc-drawer .nav-tab.active .nav-tab-title {
  font-weight: 600;
}

.toc-children {
  display: none;
  position: relative;
  margin: 0.1rem 0.5rem 0.35rem 1.85rem;
  padding-left: 0.85rem;
  border-left: 1px solid #cbd5e1;
}

.toc-branch.is-open > .toc-children,
.toc-paths.is-open {
  display: block;
}

.toc-paths {
  display: none;
}

.toc-sub {
  display: block;
  position: relative;
  width: calc(100% - 0.35rem);
  margin: 1px 0;
  border: 0;
  border-radius: 6px;
  background: transparent;
  text-align: left;
  font-family: inherit;
  font-size: 0.82rem;
  line-height: 1.35;
  color: #64748b;
  padding: 0.32rem 0.55rem 0.32rem 0.7rem;
  cursor: pointer;
}

.toc-sub::before {
  content: "";
  position: absolute;
  left: -0.85rem;
  top: 50%;
  width: 0.85rem;
  height: 7px;
  transform: translateY(-50%);
  background:
    linear-gradient(#cbd5e1, #cbd5e1) left center / 0.55rem 1px no-repeat,
    radial-gradient(circle at calc(100% - 3px) 50%, #fff 1.5px, #94a3b8 1.7px 3.2px, transparent 3.4px);
}

.toc-sub:last-child::after {
  content: "";
  position: absolute;
  left: calc(-0.85rem - 1px);
  top: calc(50% + 1px);
  bottom: 0;
  width: 3px;
  background: #fff;
}

.toc-sub:hover {
  background: #f8fafc;
  color: #0f172a;
}

.toc-sub.active,
.toc-sub.is-open {
  background: #f8fafc;
  color: #1d4ed8;
  font-weight: 600;
}

.toc-sub.active::before {
  background:
    linear-gradient(#93c5fd, #93c5fd) left center / 0.55rem 1px no-repeat,
    radial-gradient(circle at calc(100% - 3px) 50%, #2563eb 3.2px, transparent 3.4px);
}

.toc-connect-label {
  margin: 0.65rem 0 0.15rem;
  padding: 0.1rem 0.55rem 0.1rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.3;
  color: #0f172a;
}

.toc-path {
  display: block;
  font-family: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.72rem;
  line-height: 1.45;
  color: #0f172a;
  background: transparent;
  overflow-wrap: normal;
  word-break: normal;
}

.toc-path span {
  font-weight: 700;
  margin-right: 0.3rem;
}

.toc-path::before,
.toc-path::after {
  content: none;
  display: none;
}

.api-connect-heading {
  margin: 1rem 0 0.4rem;
  font-size: 1.15rem;
  font-weight: 500;
  color: #0f172a;
}

.api-connect-list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
}

.api-connect-list li {
  margin: 0.2rem 0;
}

.api-connect-list a {
  display: inline-block;
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  background: #eff6ff;
  font-family: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  line-height: 1.45;
  color: #0f172a;
}

.api-connect-list a span {
  font-weight: 700;
  margin-right: 0.4rem;
  color: #1e3a8a;
}

.toc-sub.toc-path.active,
.toc-sub.toc-path:hover {
  background: transparent;
  color: #0f172a;
  font-weight: 500;
}

.api-connect-list a.active {
  background: #dbeafe;
  color: #1e3a8a;
  font-weight: 700;
}

.api-endpoint {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid #93c5fd;
  border-radius: 6px;
  background: #dbeafe;
  font-family: "Fira Code", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.82rem;
  font-weight: 600;
  color: #1e3a8a;
}

.api-endpoint code {
  color: inherit;
  font-size: inherit;
  background: transparent;
}

@media (max-width: 900px) {
  .doc-toc-toggle {
    display: flex;
    margin-bottom: 0;
    padding: 1.25rem 1.25rem 0;
  }

  .doc-body.toc-open .toc-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    border: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: 250;
  }

  .toc-drawer {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 260;
    height: 100%;
    width: min(300px, 86vw);
    transform: translateX(-105%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-xl);
  }

  .doc-body.toc-open .toc-drawer {
    transform: translateX(0);
  }
}

@media (min-width: 901px) {
  .doc-body.toc-collapsed .toc-drawer {
    flex-basis: 0;
    width: 0;
    min-width: 0;
    border-right-width: 0;
    overflow: hidden;
  }

  .doc-body.toc-collapsed .main-content {
    align-items: center;
  }

  .doc-body.toc-collapsed .tab-pane.active {
    width: min(860px, 100%);
    margin-inline: auto;
  }

  .doc-toc-toggle {
    display: block;
    position: fixed;
    top: 0.7rem;
    left: calc(300px - 2.6rem);
    z-index: 40;
    margin: 0;
    transition: left 0.2s ease;
  }

  .doc-body.toc-collapsed .doc-toc-toggle {
    left: 0.7rem;
  }

  #btn-open-toc {
    width: 1.85rem;
    height: 1.85rem;
    padding: 0;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    background: #fff;
   
    color: #334155;
    font-size: 0;
  }

  #btn-open-toc:hover {
    background: #f8fafc;
    color: #1d4ed8;
  }

  #btn-open-toc::before {
    content: "";
    width: 0.42rem;
    height: 0.42rem;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(135deg);
    margin-left: 0.625rem;
  }

  .doc-body.toc-collapsed #btn-open-toc::before {
    transform: rotate(-45deg);
    margin-left: 0.3125rem;
  }
}

/* Seller setup guide */
.inventory-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.inventory-tab {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 0.7rem 1rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.inventory-tab:hover {
  border-color: var(--primary-500);
  color: var(--primary-700);
}

.inventory-tab.active {
  color: var(--primary-700);
  background: var(--primary-50);
  border-color: var(--primary-600);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.16);
}

.inventory-tab:focus-visible {
  outline: 2px solid var(--primary-600);
  outline-offset: 2px;
}

.inventory-panel {
  display: none;
}

.inventory-panel.active {
  display: block;
}

.inventory-panel[hidden] {
  display: none !important;
}

.doc-step-single {
  grid-template-columns: minmax(0, 42rem);
}

.link-button {
  font: inherit;
  font-weight: 700;
  color: var(--primary-600);
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
}

.overview-block {
  margin-bottom: 2.25rem;
}

.overview-block:last-child {
  margin-bottom: 0;
}

.overview-heading {
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin: 0 0 0.3rem;
}

.overview-lead {
  max-width: 55rem;
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.98rem;
}

.overview-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.85rem;
  margin-bottom: 1.5rem;
}

.overview-step {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
  text-align: left;
  font-family: inherit;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1rem 1.05rem 1.1rem;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.overview-step:hover {
  border-color: var(--primary-500);
  background: var(--primary-50);
}

.overview-step:focus-visible {
  outline: 2px solid var(--primary-600);
  outline-offset: 2px;
}

.overview-step-title {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-main);
}

.overview-step-text {
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.overview-step-go {
  margin-top: auto;
  padding-top: 0.45rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-600);
}

.overview-paths .card {
  margin-bottom: 0;
}

.overview-path {
  display: flex;
  flex-direction: column;
  border-top: 4px solid var(--primary-600);
}

.overview-path-admin {
  border-top-color: var(--primary-600);
}

.overview-path .card-header {
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
}

.overview-path .card-title {
  font-size: 1.05rem;
}

.overview-path p {
  flex: 1;
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.overview-rest {
  display: grid;
  gap: 0.75rem;
}

.overview-rest-group {
  display: grid;
  grid-template-columns: 6.5rem minmax(0, 1fr);
  gap: 0.75rem 1rem;
  align-items: start;
  padding: 0.85rem 1rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.overview-rest-label {
  margin: 0;
  padding-top: 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary-700);
}

.overview-rest-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.overview-link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
  text-align: left;
  font-family: inherit;
  background: var(--bg-subtle);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
  cursor: pointer;
}

.overview-link:hover {
  border-color: var(--primary-500);
  background: var(--primary-50);
}

.overview-link:focus-visible {
  outline: 2px solid var(--primary-600);
  outline-offset: 2px;
}

.overview-link-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-main);
}

.overview-link-text {
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--text-muted);
}

.overview-next-text {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.doc-step {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
  scroll-margin-top: 8.5rem;
}

.doc-step:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.doc-step-kicker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary-700);
  margin-bottom: 0.35rem;
}

.doc-step-title {
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-bottom: 0.85rem;
}

.doc-step-list {
  margin: 0 0 0rem -0.85rem;
  color: var(--text-main);
}

.doc-step-list li {
  margin-bottom: 0.45rem;
}

.doc-step-result {
  font-size: 0.95rem;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
}

.doc-step-next {
  margin-top: 1rem;
}

.doc-step-aside {
  margin-top: 0.65rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.doc-step .img-card {
  margin-top: 0;
}

.doc-step-shots {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.doc-step.doc-step-flow {
  display: block;
}

.shot-kicker {
  margin: 0;
  padding: 0.65rem 1rem 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-light);
}

.shot-guide {
  margin: 0;
  padding: 0.15rem 1rem 0.9rem;
  font-size: 0.875rem;
  line-height: 1.45;
  color: var(--text-muted);
  background: var(--bg-subtle);
}

.url-highlight {
  background: rgba(253, 224, 71, 0.35);
  color: inherit;
  font-weight: 600;
  padding: 0.12em 0.4em;
  border-radius: 4px;
}

@media (max-width: 900px) {
  .overview-steps,
  .overview-rest-links,
  .doc-step {
    grid-template-columns: 1fr;
  }

  .overview-rest-group {
    grid-template-columns: 1fr;
    gap: 0.45rem;
  }

  .overview-rest-label {
    padding-top: 0;
  }
}

/* Main Content Area */
.main-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  height: 100%;
  overflow: hidden;
  margin: 0;
  padding: 0;
  background: #fff;
}

.main-content [id] {
  scroll-margin-top: 1.25rem;
}

.on-this-page {
  flex: 0 0 220px;
  width: 220px;
  height: 100%;
  margin: 0;
  padding: 1.15rem 0.75rem 2rem;
  overflow-x: hidden;
  overflow-y: auto;
  background: #fff;
  border-left: 1px solid #ececec;
  border-radius: 0;
}

.on-this-page.is-empty {
  display: none;
}

.on-this-page-label {
  margin: 0 0 0.55rem;
  padding: 0 0.65rem;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #94a3b8;
}

.on-this-page-links {
  display: flex;
  flex-direction: column;
}

.on-this-page button {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  width: 100%;
  margin: 1px 0;
  padding: 0.32rem 0.45rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #334155;
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
  text-align: left;
  cursor: pointer;
}

.on-this-page-num {
  flex: 0 0 auto;
  min-width: 1.35rem;
  height: 1.35rem;
  margin-top: 0.02rem;
  padding: 0 0.28rem;
  border-radius: 999px;
  background: #f1f5f9;
  color: #64748b;
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
  display: grid;
  place-items: center;
}

.on-this-page-text {
  min-width: 0;
}

.on-this-page button.is-sub .on-this-page-text {
  padding-left: 0.15rem;
}

.on-this-page button.is-deep {
  font-weight: 400;
  color: #64748b;
}

.on-this-page button.is-deep .on-this-page-text {
  padding-left: 0.45rem;
}

.on-this-page button:hover {
  background: #f8fafc;
  color: #0f172a;
}

.on-this-page button.is-active {
  background: #eff6ff;
  color: #1d4ed8;
  font-weight: 600;
}

.on-this-page button.is-active .on-this-page-num {
  background: #2563eb;
  color: #fff;
}

@media (max-width: 640px) {
  .on-this-page {
    display: none;
  }
}

.main-content p:not(.api-endpoint),
.main-content li,
.main-content .overview-step-text,
.main-content .overview-link-text,
.main-content .img-caption,
.main-content .shot-guide,
.main-content .doc-step-result,
.main-content .doc-step-aside,
.main-content .page-subtitle,
.main-content .overview-lead,
.main-content .overview-next-text {
  font-size: 14px;
  font-weight: 400;
  text-align: justify;
}

.main-content p:not(.api-endpoint) a,
.main-content li a {
  font-weight: 400;
}

.tab-pane {
  max-width: 860px;
}

.tab-pane {
  display: none;
  animation: fadeIn 0.3s ease-in-out;
}
.tab-pane.active {
  display: block;
  flex: 1 1 auto;
  min-height: 0;
  width: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 2.25rem 2.5rem 2.5rem;
}
.tab-pane[hidden] {
  display: none !important;
}

[data-doc][hidden] {
  display: none !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Page Headers & Cards */
.page-title-section {
  margin-bottom: 2rem;
}

.page-title {
  font-size: 1.85rem;
  font-weight: 500;
  color: var(--text-main);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.page-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 900px;
}

.page-subtitle + .page-subtitle {
  margin-top: 0.75rem;
}

.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

#tab-api-playground .card {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding-left: 0;
  padding-right: 0;
}

#tab-api-playground .card:hover {
  box-shadow: none;
}

#tab-api-playground .card-header {
  border-bottom: 0;
  padding-bottom: 0;
}

.card-header {
  
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
}

.card-title {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Image Showcase Cards for Screenshots */
.img-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--bg-surface);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-normal);
  margin-top: 1rem;
}

.img-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-500);
}

.img-card img {
  width: 100%;
  height: auto;
  display: block;
  border-bottom: 1px solid var(--border-subtle);
}

.img-caption {
  padding: 0.75rem 1rem;
  background-color: var(--bg-subtle);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .grid-4, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-primary {
  background-color: var(--primary-600);
  color: white;
}
.btn-primary:hover {
  background-color: var(--primary-700);
}

.btn-secondary {
  background-color: var(--bg-surface);
  border-color: var(--border-color);
  color: var(--text-main);
}
.btn-secondary:hover {
  background-color: var(--bg-hover);
}

.btn-success {
  background-color: var(--success-solid);
  color: white;
}
.btn-success:hover {
  background-color: #15803d;
}

.btn-outline {
  background: transparent;
  border-color: var(--primary-600);
  color: var(--primary-600);
}
.btn-outline:hover {
  background-color: var(--primary-50);
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}

.form-control, .form-select {
  width: 100%;
  padding: 0.65rem 0.85rem;
  font-family: inherit;
  font-size: 0.9rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-surface);
  color: var(--text-main);
  transition: var(--transition-fast);
}

.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-hint {
  font-size: 0.775rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

/* Badges & Pills */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-primary { background: var(--primary-50); color: var(--primary-700); border: 1px solid var(--primary-100); }
.badge-success { background: var(--success-bg); color: var(--success-text); border: 1px solid var(--success-border); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); border: 1px solid var(--warning-border); }
.badge-danger { background: var(--danger-bg); color: var(--danger-text); border: 1px solid var(--danger-border); }
.badge-purple { background: #f3e8ff; color: #6b21a8; border: 1px solid #e9d5ff; }

/* Flowchart / Step Diagrams */
.step-pipeline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  padding: 1rem 0.5rem;
}

.step-item {
  flex: 1;
  background-color: var(--bg-surface);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1rem;
  text-align: center;
  position: relative;
  min-width: 160px;
}

.step-item.active {
  border-color: var(--primary-600);
  background-color: var(--primary-50);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background-color: var(--primary-600);
  color: white;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.step-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
}

.step-desc {
  font-size: 0.775rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.step-arrow {
  color: var(--text-light);
  font-size: 1.5rem;
  font-weight: bold;
}

/* Code Blocks & Payloads */
.code-block {
  background-color: #0f172a;
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: 'Fira Code', 'Courier New', Courier, monospace;
  font-size: 0.85rem;
  overflow-x: auto;
  position: relative;
}

.try-api-grid > * {
  min-width: 0;
}

.response-box {
  height: 420px;
  overflow: auto;
}

.response-box pre {
  margin: 0;
}

.response-box code {
  display: block;
  white-space: pre;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #1e293b;
  padding: 0.4rem 0.8rem;
  margin: -1rem -1rem 0.75rem -1rem;
  border-top-left-radius: var(--radius-sm);
  border-top-right-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: #94a3b8;
}

.copy-btn {
  background: transparent;
  border: 1px solid #475569;
  color: #cbd5e1;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.7rem;
  cursor: pointer;
}
.copy-btn:hover {
  background: #334155;
  color: white;
}

/* Data Tables */
.table-wrapper {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 12px;
}

.data-table th,
.data-table td,
.data-table code,
.data-table strong,
.data-table a {
  font-size: 12px;
}

.data-table th {
  background-color: var(--bg-subtle);
  color: var(--text-main);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.data-table tr:hover {
  background-color: var(--primary-50);
}

#tab-api-playground .table-wrapper {
  border: 1px solid var(--border-color);
  border-radius: 6px;
  overflow: auto;
}

#tab-api-playground .data-table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  text-align: left;
  table-layout: fixed;
}

#tab-api-playground .data-table th,
#tab-api-playground .data-table td {
  border: 1px solid var(--border-color);
  padding: 0.65rem 0.75rem;
  vertical-align: top;
  text-align: left;
  overflow-wrap: break-word;
  word-break: normal;
}

#tab-api-playground .data-table th {
  background-color: var(--bg-subtle);
}

#tab-api-playground .data-table td:last-child {
  text-align: justify;
}

#tab-api-playground .data-table th:first-child:nth-last-child(2) {
  width: 22%;
}

#tab-api-playground .data-table th:first-child:nth-last-child(3) {
  width: 22%;
}

#tab-api-playground .data-table th:nth-child(2):nth-last-child(2) {
  width: 28%;
}

#tab-api-playground .data-table th:first-child:nth-last-child(4) {
  width: 20%;
}

#tab-api-playground .data-table th:nth-child(2):nth-last-child(3) {
  width: 14%;
}

#tab-api-playground .data-table th:nth-child(3):nth-last-child(2) {
  width: 16%;
}

#tab-api-playground .data-table th:first-child:nth-last-child(6) {
  width: 16%;
}

#tab-api-playground .data-table th:nth-child(2):nth-last-child(5) {
  width: 12%;
}

#tab-api-playground .data-table th:nth-child(3):nth-last-child(4) {
  width: 12%;
}

#tab-api-playground .data-table th:nth-child(4):nth-last-child(3) {
  width: 12%;
}

#tab-api-playground .data-table th:nth-child(5):nth-last-child(2) {
  width: 20%;
}

#tab-api-playground .data-table code {
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* Scenario Cards */
.scenario-card {
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  background-color: var(--bg-surface);
  transition: var(--transition-normal);
  cursor: pointer;
}

.scenario-card:hover {
  border-color: var(--primary-500);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.scenario-card.active {
  border-color: var(--primary-600);
  background-color: var(--primary-50);
}

.scenario-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background-color: var(--primary-100);
  color: var(--primary-700);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

/* Callout Box */
.callout {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.25rem;
  display: flex;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.callout-info,
.callout-success {
  background-color: var(--primary-50);
  border-left: 4px solid var(--primary-600);
  color: var(--primary-900);
}

.callout-warning {
  background-color: var(--warning-bg);
  border-left: 4px solid var(--warning-solid);
  color: var(--warning-text);
}

/* Drag and Drop Box */
.drop-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 2.5rem 1.5rem;
  text-align: center;
  background-color: var(--bg-subtle);
  transition: var(--transition-fast);
  cursor: pointer;
}
.drop-zone:hover {
  border-color: var(--primary-600);
  background-color: var(--primary-50);
}

.drop-icon {
  font-size: 2.5rem;
  color: var(--primary-600);
  margin-bottom: 0.5rem;
}

/* Footer */
#tab-discount .discount-type {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1.15rem 1.15rem 1.2rem;
  border-top: 3px solid var(--primary-600);
}

#tab-discount .discount-type:hover {
  border-color: #dbe7fb;
  border-top-color: var(--primary-600);
}

#tab-discount .discount-type-pct {
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--primary-700);
}

#tab-discount .discount-type p,
#tab-discount .discount-type h3 {
  text-align: left;
}

#tab-discount .discount-type p {
  margin: 0;
  color: var(--text-muted);
}

#tab-discount .discount-type .badge.text-bg-light {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text-main);
}

#tab-discount .discount-type-note {
  margin-top: auto;
  padding: 0.7rem 0.8rem;
  background: var(--primary-50);
  border-radius: var(--radius-sm);
  color: var(--primary-900);
  font-size: 13px;
  line-height: 1.45;
}

body[data-tab="try-api"] .on-this-page,
body[data-tab="support"] .on-this-page {
  display: none;
}

#tab-try-api.tab-pane {
  max-width: none;
}

#tab-try-api .try-console {
  padding: 0;
  border-color: #dbe3ee;
  box-shadow: var(--shadow-md);
  container-type: inline-size;
  container-name: tryconsole;
}

#tab-try-api .try-console:hover {
  box-shadow: var(--shadow-md);
}

#tab-try-api .try-console-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem 1.5rem;
  margin: 0;
  padding: 1.15rem 1.5rem;
  background: linear-gradient(180deg, #f8fbff 0%, #f1f5f9 100%);
}

#tab-try-api .try-template {
  flex: 1 1 18rem;
  max-width: 28rem;
  margin-left: auto;
}

#tab-try-api .try-bar {
  padding: 1.25rem 1.5rem 0;
}

#tab-try-api .try-command .try-method {
  flex: 0 0 7.25rem;
  width: 7.25rem;
  max-width: 7.25rem;
}

#tab-try-api .try-command .try-url {
  flex: 1 1 auto;
  width: 1%;
  min-width: 0;
}

#tab-try-api .try-method {
  width: 7.25rem;
  background-color: var(--primary-50);
  color: var(--primary-700);
  border-color: var(--primary-100);
}

#tab-try-api .try-method[data-method="GET"] {
  background-color: var(--success-bg);
  color: var(--success-text);
  border-color: var(--success-border);
}

#tab-try-api .try-method[data-method="PUT"] {
  background-color: var(--warning-bg);
  color: var(--warning-text);
  border-color: var(--warning-border);
}

#tab-try-api .try-method[data-method="DELETE"] {
  background-color: var(--danger-bg);
  color: var(--danger-text);
  border-color: var(--danger-border);
}

#tab-try-api .try-command .form-select,
#tab-try-api .try-command .form-control,
#tab-try-api .try-send {
  min-height: 2.85rem;
}

#tab-try-api .try-url {
  font-family: "Fira Code", monospace;
  font-size: 0.9rem;
}

#tab-try-api .try-send {
  min-width: 9.5rem;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  white-space: nowrap;
}

#tab-try-api .try-editors {
  padding: 1.5rem 1.5rem 1.65rem;
}

#tab-try-api .try-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
}

#tab-try-api .try-editor {
  min-height: 9.5rem;
  padding: 1rem 1.1rem;
  font-family: "Fira Code", monospace;
  font-size: 13.5px;
  line-height: 1.65;
  color: #e2e8f0;
  background: #0f172a;
  border: 1px solid #1e293b;
  border-radius: 8px;
  resize: vertical;
}

#tab-try-api .try-editor:focus {
  color: #e2e8f0;
  background: #0f172a;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.28);
}

#tab-try-api .try-editor::placeholder {
  color: #64748b;
}

#tab-try-api .try-response {
  display: flex;
  flex-direction: column;
  height: 100%;
}

#tab-try-api .response-box {
  flex: 1 1 auto;
  height: auto;
  min-height: 22rem;
  padding: 1.15rem 1.25rem;
  border-radius: 8px;
  border: 1px solid #1e293b;
}

#tab-try-api .try-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10.5rem, 1fr));
  gap: 1rem;
  margin-top: 1.35rem;
}

#tab-try-api .try-step {
  height: 100%;
  padding: 1.05rem 1.1rem 1.15rem;
  background: #fff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

#tab-try-api .try-step-num {
  display: inline-grid;
  place-items: center;
  width: 1.45rem;
  height: 1.45rem;
  margin-bottom: 0.45rem;
  border-radius: 999px;
  background: var(--primary-600);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
}

#tab-try-api .try-step p {
  margin: 0;
  text-align: left;
  font-size: 13px;
  line-height: 1.4;
}

@container tryconsole (min-width: 60rem) {
  #tab-try-api .try-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: stretch;
  }

  #tab-try-api .response-box {
    min-height: 28rem;
  }
}

@container tryconsole (max-width: 48rem) {
  #tab-try-api .try-command {
    flex-wrap: wrap;
  }

  #tab-try-api .try-command .try-url {
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
    border-top-right-radius: var(--radius-sm);
    border-bottom-right-radius: var(--radius-sm);
  }

  #tab-try-api .try-send {
    flex: 1 1 100%;
    width: 100%;
    margin-top: 0.65rem;
    border-radius: var(--radius-sm);
  }
}

.app-footer {
  flex: 0 0 auto;
  margin-top: 0;
  background-color: #fff;
  border-top: 1px solid #ececec;
  padding: 0.85rem 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
}