/* SettlementRadar Docs — Stripe-style documentation layout
   Loaded only on /docs/* pages
   Uses design-tokens.css variables throughout */

/* ─── Layout ─────────────────────────────────────────────────────────────── */

.docs-layout {
  display: flex;
  min-height: calc(100vh - 64px);
  background: #fff;
}

.docs-sidebar {
  width: 260px;
  flex-shrink: 0;
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow-y: auto;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  padding: 24px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
}

.docs-sidebar::-webkit-scrollbar { width: 4px; }
.docs-sidebar::-webkit-scrollbar-track { background: transparent; }
.docs-sidebar::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 4px; }

.docs-main {
  flex: 1;
  min-width: 0;
  padding: 48px 64px 80px;
  max-width: 860px;
}

@media (max-width: 1100px) {
  .docs-main { padding: 40px 40px 60px; }
}

/* ─── Search ─────────────────────────────────────────────────────────────── */

.docs-search-wrap {
  padding: 0 16px 16px;
}

.docs-search {
  width: 100%;
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23697386' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E") 10px center / 14px no-repeat;
  font-size: 13px;
  color: var(--color-text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  font-family: inherit;
  box-sizing: border-box;
}

.docs-search:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(5, 112, 222, 0.1);
}

.docs-search::placeholder { color: #8898aa; }

/* ─── Sidebar Nav ─────────────────────────────────────────────────────────── */

.docs-nav-section {
  margin-bottom: 4px;
}

.docs-nav-section-title {
  font-size: 11px;
  font-weight: 700;
  color: #8898aa;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 16px 4px;
  display: block;
}

.docs-nav-link {
  display: block;
  padding: 7px 16px;
  font-size: 13.5px;
  color: var(--color-text-body);
  text-decoration: none;
  border-right: 2px solid transparent;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
  line-height: 1.4;
}

.docs-nav-link:hover {
  color: var(--color-primary);
  background: rgba(5, 112, 222, 0.04);
}

.docs-nav-link.active {
  color: var(--color-primary);
  font-weight: 600;
  border-right-color: var(--color-primary);
  background: rgba(5, 112, 222, 0.06);
}

.docs-nav-divider {
  height: 1px;
  background: var(--color-border);
  margin: 12px 16px;
}

/* ─── Breadcrumbs ─────────────────────────────────────────────────────────── */

.docs-breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #8898aa;
  margin-bottom: 24px;
}

.docs-breadcrumbs a {
  color: #8898aa;
  text-decoration: none;
  transition: color 0.12s;
}

.docs-breadcrumbs a:hover { color: var(--color-primary); }

.docs-breadcrumbs-sep {
  color: #c1c9d2;
  font-size: 10px;
}

/* ─── Content Typography ─────────────────────────────────────────────────── */

.docs-content {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-body);
}

.docs-content h1 {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin: 0 0 8px;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.docs-page-subtitle {
  font-size: 1.05rem;
  color: #697386;
  margin: 0 0 36px;
  line-height: 1.5;
}

.docs-content h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin: 40px 0 12px;
  padding-top: 4px;
  letter-spacing: -0.01em;
}

.docs-content h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin: 28px 0 8px;
}

.docs-content p {
  margin: 0 0 16px;
}

.docs-content ul,
.docs-content ol {
  margin: 0 0 16px;
  padding-left: 24px;
}

.docs-content li { margin-bottom: 6px; }

.docs-content a {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom: 1px solid rgba(5, 112, 222, 0.2);
  transition: border-color 0.12s;
}

.docs-content a:hover { border-color: var(--color-primary); }

.docs-content strong { color: var(--color-text); font-weight: 600; }

.docs-content code {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', 'Roboto Mono', monospace;
  font-size: 0.85em;
  color: #0a2540;
}

/* ─── Callout Boxes ─────────────────────────────────────────────────────── */

.docs-callout {
  border-radius: var(--radius-card);
  padding: 16px 20px;
  margin: 24px 0;
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.docs-callout__icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.docs-callout__body { flex: 1; min-width: 0; }

.docs-callout__body p { margin: 0; font-size: 14px; line-height: 1.6; }

.docs-callout--tip {
  background: rgba(5, 112, 222, 0.05);
  border: 1px solid rgba(5, 112, 222, 0.15);
}

.docs-callout--tip .docs-callout__body p { color: #1a56db; }

.docs-callout--warning {
  background: rgba(251, 191, 36, 0.08);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.docs-callout--warning .docs-callout__body p { color: #92400e; }

.docs-callout--success {
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.docs-callout--success .docs-callout__body p { color: #065f46; }

/* ─── Step Cards ─────────────────────────────────────────────────────────── */

.docs-steps {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  counter-reset: steps;
}

.docs-step {
  counter-increment: steps;
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.docs-step::before {
  content: counter(steps);
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  margin-top: 1px;
}

.docs-step__content h3 {
  margin: 0 0 4px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-secondary);
}

.docs-step__content p {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-body);
  line-height: 1.6;
}

/* ─── Feature Grid ──────────────────────────────────────────────────────── */

.docs-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
  margin: 20px 0 28px;
}

.docs-feature-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px;
  text-decoration: none;
  transition: box-shadow 0.15s, border-color 0.15s;
  display: block;
}

.docs-feature-card:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(5, 112, 222, 0.3);
}

.docs-feature-card__icon { font-size: 1.5rem; margin-bottom: 10px; }

.docs-feature-card__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-secondary);
  margin: 0 0 4px;
}

.docs-feature-card__desc {
  font-size: 13px;
  color: #697386;
  line-height: 1.5;
  margin: 0;
}

/* ─── On-page Table of Contents ─────────────────────────────────────────── */

.docs-toc {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  margin: 0 0 36px;
}

.docs-toc__title {
  font-size: 11px;
  font-weight: 700;
  color: #8898aa;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 10px;
}

.docs-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.docs-toc__list li { margin-bottom: 6px; }

.docs-toc__list a {
  font-size: 13.5px;
  color: var(--color-text-body);
  text-decoration: none;
  border-bottom: none;
  transition: color 0.12s;
}

.docs-toc__list a:hover { color: var(--color-primary); }

/* ─── Page Nav (prev / next) ─────────────────────────────────────────────── */

.docs-page-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.docs-page-nav-btn {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  padding: 14px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  min-width: 180px;
  max-width: 240px;
  transition: box-shadow 0.15s, border-color 0.15s;
  flex: 1;
}

.docs-page-nav-btn:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-primary);
}

.docs-page-nav-btn--next { align-items: flex-end; }

.docs-page-nav-direction {
  font-size: 11px;
  font-weight: 600;
  color: #8898aa;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.docs-page-nav-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.3;
}

/* ─── Mobile: Hamburger toggle for sidebar ──────────────────────────────── */

.docs-mobile-header {
  display: none;
  position: sticky;
  top: 64px;
  z-index: 50;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 10px 16px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.docs-mobile-header__title {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.docs-mobile-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-btn);
  padding: 6px 12px;
  min-height: 44px; /* WCAG 2.1 minimum tap target */
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-body);
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
}

.docs-mobile-toggle svg { flex-shrink: 0; }

/* ─── Search results highlight ──────────────────────────────────────────── */

.docs-nav-link.search-hidden { display: none; }
.docs-nav-section-title.search-hidden { display: none; }
.docs-nav-section.search-hidden { display: none; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .docs-layout { display: block; }

  .docs-mobile-header { display: flex; }

  .docs-sidebar {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    width: 100%;
    height: calc(100vh - 64px);
    z-index: 100;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    padding-bottom: 40px;
  }

  .docs-sidebar.is-open { display: block; }

  .docs-main {
    padding: 24px 20px 48px;
  }

  .docs-feature-grid { grid-template-columns: 1fr 1fr; }

  .docs-page-nav { flex-direction: column; }
  .docs-page-nav-btn { max-width: none; }
  .docs-page-nav-btn--next { align-items: flex-start; }

  .docs-content h1 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .docs-feature-grid { grid-template-columns: 1fr; }
}

/* ─── Plan comparison table ─────────────────────────────────────────────── */

.docs-plan-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 28px;
  font-size: 14px;
}

.docs-plan-table th,
.docs-plan-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.docs-plan-table th {
  font-size: 12px;
  font-weight: 700;
  color: #697386;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-bg-alt);
}

.docs-plan-table tr:last-child td { border-bottom: none; }

.docs-plan-table td:first-child { color: var(--color-text); font-weight: 500; }

.docs-check { color: #10b981; font-weight: 700; }
.docs-cross  { color: #e53e3e; }

/* ─── FAQ accordion ─────────────────────────────────────────────────────── */

.docs-faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  margin-bottom: 10px;
  overflow: hidden;
}

.docs-faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 16px 20px;
  text-align: left;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-secondary);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background 0.12s;
  font-family: inherit;
}

.docs-faq-question:hover { background: var(--color-bg-alt); }

.docs-faq-question[aria-expanded="true"] { background: var(--color-bg-alt); }

.docs-faq-chevron {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
  color: #8898aa;
  transition: transform 0.2s;
}

.docs-faq-question[aria-expanded="true"] .docs-faq-chevron {
  transform: rotate(180deg);
}

.docs-faq-answer {
  display: none;
  padding: 0 20px 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--color-text-body);
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}

.docs-faq-answer.is-open { display: block; }

/* ─── Inline badge ───────────────────────────────────────────────────────── */

.docs-badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.docs-badge--pro  { background: rgba(5,112,222,0.1); color: #0570de; }
.docs-badge--free { background: rgba(16,185,129,0.1); color: #059669; }
.docs-badge--plus { background: rgba(124,58,237,0.1); color: #7c3aed; }