@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --site-header-height: 3.5rem;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
}

/* Keep top nav visible while scrolling (fixed, not sticky) */
.site-header {
  height: var(--site-header-height);
}

.site-shell {
  padding-top: var(--site-header-height);
}

/* SecureSign brand logo */
.site-logo-link {
  text-decoration: none;
}

.site-logo-wrap {
  line-height: 0;
  flex-shrink: 0;
}

.site-logo {
  display: block;
  height: 2.125rem;
  width: auto;
  max-height: 2.5rem;
  object-fit: contain;
}

@media (min-width: 640px) {
  .site-logo {
    height: 2.5rem;
  }
}

/* Light backing in dark theme so navy wordmark stays readable */
.dark .site-logo-wrap {
  background: #ffffff;
  border-radius: 0.375rem;
  padding: 0.1875rem 0.5rem;
}

code, pre, .font-mono {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
}

.prose-doc h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  margin-top: 3rem;
  margin-bottom: 1rem;
  scroll-margin-top: calc(var(--site-header-height) + 1.5rem);
  color: #111827;
}

.dark .prose-doc h2 { color: #fff; }

.prose-doc h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  scroll-margin-top: calc(var(--site-header-height) + 1.5rem);
  color: #111827;
}

.dark .prose-doc h3 { color: #fff; }

.prose-doc p {
  line-height: 1.75;
  margin-bottom: 1rem;
  color: #4b5563;
}

.dark .prose-doc p { color: #d1d5db; }

.prose-doc ul, .prose-doc ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

.prose-doc ul { list-style: disc; }
.prose-doc ol { list-style: decimal; }

.prose-doc li {
  margin-bottom: 0.5rem;
  line-height: 1.625;
  color: #4b5563;
}

.dark .prose-doc li { color: #d1d5db; }

.prose-doc table {
  width: 100%;
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  border-collapse: collapse;
}

.prose-doc th {
  text-align: left;
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #e5e7eb;
  background: #f9fafb;
  color: #111827;
}

.dark .prose-doc th {
  color: #fff;
  border-color: #374151;
  background: rgba(17, 24, 39, 0.5);
}

.prose-doc td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid #f3f4f6;
  color: #4b5563;
}

.dark .prose-doc td {
  color: #d1d5db;
  border-color: #1f2937;
}

.prose-doc tr:hover td {
  background: rgba(124, 58, 237, 0.05);
}

.dark .prose-doc tr:hover td {
  background: rgba(124, 58, 237, 0.1);
}

.prose-doc .code-class {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
}

.code-block {
  position: relative;
  border-radius: 0.75rem;
  border: 1px solid #e5e7eb;
  background: #f9fafb;
  overflow: hidden;
  margin-bottom: 1.5rem;
}

.dark .code-block {
  border-color: #374151;
  background: #111827;
}

.code-block pre {
  padding: 1rem;
  overflow-x: auto;
  font-size: 0.875rem;
  line-height: 1.5;
  margin: 0;
  color: #1f2937;
  background: transparent;
}

.dark .code-block pre,
.dark .code-block code[class*="language-"],
.dark .code-block pre[class*="language-"] {
  color: #e5e7eb;
  background: transparent;
  text-shadow: none;
}

/* Prism token colors — dark theme fallback when class toggle is used */
.dark .code-block .token.comment,
.dark .code-block .token.prolog,
.dark .code-block .token.doctype,
.dark .code-block .token.cdata {
  color: #9ca3af;
}

.dark .code-block .token.punctuation {
  color: #d1d5db;
}

.dark .code-block .token.property,
.dark .code-block .token.tag,
.dark .code-block .token.boolean,
.dark .code-block .token.number,
.dark .code-block .token.constant,
.dark .code-block .token.symbol,
.dark .code-block .token.deleted {
  color: #fbbf24;
}

.dark .code-block .token.selector,
.dark .code-block .token.attr-name,
.dark .code-block .token.string,
.dark .code-block .token.char,
.dark .code-block .token.builtin,
.dark .code-block .token.inserted {
  color: #86efac;
}

.dark .code-block .token.operator,
.dark .code-block .token.entity,
.dark .code-block .token.url,
.dark .code-block .language-css .token.string,
.dark .code-block .style .token.string {
  color: #f9a8d4;
}

.dark .code-block .token.atrule,
.dark .code-block .token.attr-value,
.dark .code-block .token.keyword {
  color: #c4b5fd;
}

.dark .code-block .token.function,
.dark .code-block .token.class-name {
  color: #67e8f9;
}

.dark .code-block .token.regex,
.dark .code-block .token.important,
.dark .code-block .token.variable {
  color: #fdba74;
}

.dark .code-block .token.bold {
  font-weight: 700;
}

.dark .code-block .token.italic {
  font-style: italic;
}

.dark .code-block pre { color: #e5e7eb; }

.code-block .copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: 0.375rem;
  border: 1px solid #e5e7eb;
  background: #fff;
  color: #6b7280;
  cursor: pointer;
}

.dark .code-block .copy-btn {
  border-color: #4b5563;
  background: #1f2937;
  color: #9ca3af;
}

.nav-link-active {
  color: var(--accent) !important;
  background: rgba(124, 58, 237, 0.1);
  font-weight: 600;
  border-left: 3px solid var(--accent);
  padding-left: calc(0.5rem - 3px);
}

.dark .nav-link-active {
  background: rgba(124, 58, 237, 0.18);
  color: #a78bfa !important;
  border-left-color: #a78bfa;
}

.sidebar-nav-link {
  display: block;
  padding: 0.4375rem 0.5rem;
  font-size: 0.875rem;
  line-height: 1.4;
  border-radius: 0.375rem;
  border-left: 3px solid transparent;
  color: #4b5563;
  text-decoration: none;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.dark .sidebar-nav-link {
  color: #d1d5db;
}

.sidebar-nav-link:hover {
  color: var(--accent);
  background: rgba(124, 58, 237, 0.06);
}

.dark .sidebar-nav-link:hover {
  color: #a78bfa;
  background: rgba(124, 58, 237, 0.1);
}

.sidebar-section-label {
  margin: 0 0 0.375rem;
  padding: 0 0.5rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9ca3af;
}

.dark .sidebar-section-label {
  color: #6b7280;
}

.sidebar-section-active .sidebar-section-label {
  color: var(--accent);
}

.dark .sidebar-section-active .sidebar-section-label {
  color: #a78bfa;
}

.sidebar-section-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-section-list li + li {
  margin-top: 0.125rem;
}

#sidebar {
  scroll-behavior: auto;
  scroll-padding-top: 4.5rem;
}

#search-modal:not(.hidden) { display: flex; }

/* ── Onboarding modal & form (self-contained — not reliant on Tailwind CDN scan) ── */
#onboarding-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 110;
  align-items: flex-start;
  justify-content: center;
  padding: 8vh 1rem 2rem;
  background: rgba(0, 0, 0, 0.5);
  overflow-y: auto;
}

#onboarding-modal.is-open {
  display: flex;
}

#onboarding-modal .onboarding-panel {
  width: 100%;
  max-width: 32rem;
  margin: 2rem 0;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 0.75rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.dark #onboarding-modal .onboarding-panel {
  background: #111827;
  border-color: #374151;
}

#onboarding-modal .onboarding-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid #e5e7eb;
}

.dark #onboarding-modal .onboarding-header {
  border-color: #374151;
}

#onboarding-modal .onboarding-eyebrow {
  margin: 0 0 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: #7c3aed;
}

.dark #onboarding-modal .onboarding-eyebrow {
  color: #a78bfa;
}

#onboarding-modal .onboarding-title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  color: #111827;
}

.dark #onboarding-modal .onboarding-title {
  color: #fff;
}

#onboarding-modal .onboarding-subtitle {
  margin: 0.25rem 0 0;
  font-size: 0.875rem;
  color: #6b7280;
}

.dark #onboarding-modal .onboarding-subtitle {
  color: #9ca3af;
}

#onboarding-modal .onboarding-close {
  flex-shrink: 0;
  padding: 0.5rem;
  border: none;
  border-radius: 0.5rem;
  background: transparent;
  color: #6b7280;
  cursor: pointer;
}

#onboarding-modal .onboarding-close:hover {
  background: #f3f4f6;
}

.dark #onboarding-modal .onboarding-close:hover {
  background: #1f2937;
}

#onboarding-modal .onboarding-close svg {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
}

#onboarding-form {
  padding: 1.25rem 1.5rem;
}

#onboarding-form.is-hidden,
#onboarding-success.is-hidden,
#onboarding-error.is-hidden {
  display: none !important;
}

#onboarding-modal fieldset {
  border: 0;
  margin: 0 0 1.25rem;
  padding: 0;
  min-width: 0;
}

#onboarding-modal fieldset:last-of-type {
  margin-bottom: 0;
}

#onboarding-modal legend {
  padding: 0;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #111827;
}

.dark #onboarding-modal legend {
  color: #fff;
}

.onboarding-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 640px) {
  .onboarding-grid {
    grid-template-columns: 1fr 1fr;
  }

  .onboarding-grid .onboarding-span-2 {
    grid-column: span 2;
  }
}

.onboarding-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  font-size: 0.875rem;
  color: #374151;
}

.dark .onboarding-field {
  color: #d1d5db;
}

.onboarding-field > span {
  font-weight: 500;
}

.onboarding-field .required {
  color: #ef4444;
}

.onboarding-field input,
.onboarding-field select,
.onboarding-field textarea {
  display: block;
  box-sizing: border-box;
  width: 100%;
  margin: 0;
  border-radius: 0.5rem;
  border: 1px solid #d1d5db !important;
  background: #fff !important;
  color: #111827 !important;
  padding: 0.5rem 0.75rem;
  font-family: inherit;
  font-size: 0.875rem;
  line-height: 1.5;
  appearance: none;
}

.dark .onboarding-field input,
.dark .onboarding-field select,
.dark .onboarding-field textarea {
  border-color: #4b5563 !important;
  background: #030712 !important;
  color: #f3f4f6 !important;
}

.onboarding-field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.25rem;
  padding-right: 2.25rem;
}

.onboarding-field input::placeholder,
.onboarding-field textarea::placeholder {
  color: #9ca3af;
}

.onboarding-field input:focus,
.onboarding-field select:focus,
.onboarding-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.onboarding-field textarea {
  resize: vertical;
  min-height: 5rem;
}

.onboarding-hint {
  margin: 0.375rem 0 0;
  font-size: 0.75rem;
  line-height: 1.45;
  color: #6b7280;
}

.dark .onboarding-hint {
  color: #9ca3af;
}

.onboarding-segment {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.onboarding-segment-option {
  position: relative;
  display: block;
  cursor: pointer;
}

.onboarding-segment-option input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.onboarding-segment-option span {
  display: block;
  text-align: center;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid #d1d5db;
  border-radius: 0.5rem;
  background: #fff;
  color: #374151;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.dark .onboarding-segment-option span {
  border-color: #4b5563;
  background: #030712;
  color: #e5e7eb;
}

.onboarding-segment-option input:checked + span {
  border-color: var(--accent);
  background: rgba(124, 58, 237, 0.1);
  color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
}

.dark .onboarding-segment-option input:checked + span {
  color: #a78bfa;
  border-color: #a78bfa;
  background: rgba(124, 58, 237, 0.18);
}

.onboarding-segment-option input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

#onboarding-error {
  margin: 0 0 1rem;
  font-size: 0.875rem;
  color: #dc2626;
}

.dark #onboarding-error {
  color: #f87171;
}

.onboarding-form-footer {
  display: flex;
  flex-direction: column-reverse;
  gap: 0.75rem;
  padding-top: 0.25rem;
}

@media (min-width: 640px) {
  .onboarding-form-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.onboarding-form-note {
  margin: 0;
  font-size: 0.75rem;
  color: #6b7280;
}

.dark .onboarding-form-note {
  color: #9ca3af;
}

.onboarding-form-note a {
  color: #7c3aed;
  text-decoration: none;
}

.onboarding-form-note a:hover {
  text-decoration: underline;
}

.dark .onboarding-form-note a {
  color: #a78bfa;
}

.onboarding-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 500;
  font-size: 0.875rem;
  color: #fff !important;
  background: var(--accent) !important;
  border: none !important;
  border-radius: 0.5rem;
  padding: 0.625rem 1.25rem;
  cursor: pointer;
  transition: background 0.15s ease;
  text-decoration: none;
}

.onboarding-btn-primary:hover {
  background: var(--accent-hover) !important;
}

.onboarding-btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.onboarding-btn-header {
  font-size: 0.75rem;
  padding: 0.375rem 0.625rem;
}

@media (min-width: 640px) {
  .onboarding-btn-header {
    font-size: 0.875rem;
    padding: 0.375rem 0.75rem;
  }
}

#onboarding-success {
  padding: 2rem 1.5rem;
  text-align: center;
}

#onboarding-success .onboarding-success-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin: 0 auto 1rem;
  border-radius: 9999px;
  background: #dcfce7;
  color: #16a34a;
}

.dark #onboarding-success .onboarding-success-icon {
  background: rgba(22, 163, 74, 0.2);
  color: #4ade80;
}

#onboarding-success .onboarding-success-icon svg {
  width: 1.5rem;
  height: 1.5rem;
}

#onboarding-success h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: #111827;
}

.dark #onboarding-success h3 {
  color: #fff;
}

#onboarding-success p {
  margin: 0 0 1.5rem;
  font-size: 0.875rem;
  color: #4b5563;
}

.dark #onboarding-success p {
  color: #d1d5db;
}

#onboarding-done {
  display: block;
  margin: 1rem auto 0;
  padding: 0;
  border: none;
  background: none;
  font-family: inherit;
  font-size: 0.875rem;
  color: #6b7280;
  cursor: pointer;
}

#onboarding-done:hover {
  color: #374151;
}

.dark #onboarding-done:hover {
  color: #d1d5db;
}

.toc-link-active {
  color: var(--accent);
  border-left: 2px solid var(--accent);
  padding-left: 0.75rem;
  margin-left: -1px;
  font-weight: 500;
}

.dark .toc-link-active { color: #a78bfa; border-color: #a78bfa; }

.tab-btn-active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

.callout {
  border-radius: 0.75rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  border: 1px solid;
}

.callout-info { border-color: #c4b5fd; background: #f5f3ff; }
.dark .callout-info { border-color: #5b21b6; background: rgba(91, 33, 182, 0.15); }

.callout-warning { border-color: #fcd34d; background: #fffbeb; }
.dark .callout-warning { border-color: #b45309; background: rgba(180, 83, 9, 0.15); }

.callout-success { border-color: #6ee7b7; background: #ecfdf5; }
.dark .callout-success { border-color: #047857; background: rgba(4, 120, 87, 0.15); }

.flow-diagram img,
.flow-diagram-svg {
  max-width: 100%;
  min-height: 360px;
  height: auto;
  display: block;
}

.dark .flow-diagram > div,
.dark .flow-diagram-frame {
  background: #111827;
}

.flow-diagram-frame {
  position: relative;
}

.flow-diagram-expand {
  position: absolute;
  top: auto;
  left: auto;
  right: 0.75rem;
  bottom: 0.75rem;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  margin: 0;
  padding: 0;
  border-radius: 0.5rem;
  border: 1px solid #e2e8f0;
  background: rgba(255, 255, 255, 0.96);
  color: #475569;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
  cursor: pointer;
  opacity: 1;
  transition: border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.dark .flow-diagram-expand {
  border-color: #4b5563;
  background: rgba(31, 41, 55, 0.96);
  color: #e5e7eb;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.35);
}

.flow-diagram-expand:hover,
.flow-diagram-expand:focus-visible {
  border-color: #7c3aed;
  color: #7c3aed;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
}

.dark .flow-diagram-expand:hover,
.dark .flow-diagram-expand:focus-visible {
  border-color: #a78bfa;
  color: #a78bfa;
}

#flow-diagram-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 120;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(3px);
  overflow-y: auto;
}

#flow-diagram-modal.is-open {
  display: flex;
}

#flow-diagram-modal .flow-diagram-modal-panel {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  width: min(96vw, 1400px);
  max-height: 92vh;
  border-radius: 0.875rem;
  border: 1px solid #e2e8f0;
  background: #fff;
  box-shadow: 0 25px 60px -12px rgba(0, 0, 0, 0.45);
  overflow: hidden;
  animation: flow-diagram-popup-in 0.2s ease-out;
}

@keyframes flow-diagram-popup-in {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(8px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.dark #flow-diagram-modal .flow-diagram-modal-panel {
  border-color: #374151;
  background: #111827;
}

#flow-diagram-modal .flow-diagram-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid #e2e8f0;
}

.dark #flow-diagram-modal .flow-diagram-modal-header {
  border-bottom-color: #374151;
}

#flow-diagram-modal .flow-diagram-modal-title {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
  color: #111827;
}

.dark #flow-diagram-modal .flow-diagram-modal-title {
  color: #f9fafb;
}

#flow-diagram-modal .flow-diagram-modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 0.5rem;
  border: 1px solid #e2e8f0;
  background: transparent;
  color: #64748b;
  cursor: pointer;
  flex-shrink: 0;
}

.dark #flow-diagram-modal .flow-diagram-modal-close {
  border-color: #374151;
  color: #9ca3af;
}

#flow-diagram-modal .flow-diagram-modal-close:hover {
  border-color: #7c3aed;
  color: #7c3aed;
}

#flow-diagram-modal .flow-diagram-modal-body {
  flex: 1;
  overflow: auto;
  padding: 1.25rem 1.5rem 1.5rem;
  background: #fff;
}

.dark #flow-diagram-modal .flow-diagram-modal-body {
  background: #111827;
}

#flow-diagram-modal .flow-diagram-modal-body .flow-diagram-svg {
  min-height: 0;
  max-width: none;
  width: 100%;
  height: auto;
  margin: 0 auto;
  display: block;
}

/* Flow diagram SVG theme tokens */
.flow-diagram-svg .diag-bg { fill: #ffffff; }
.flow-diagram-svg .diag-surface { fill: #f8fafc; }
.flow-diagram-svg .diag-surface-accent { fill: #faf5ff; }
.flow-diagram-svg .diag-panel { fill: #fafafa; }
.flow-diagram-svg .diag-border { stroke: #e2e8f0; }
.flow-diagram-svg .diag-border-accent { stroke: #ddd6fe; }
.flow-diagram-svg .diag-text { fill: #334155; }
.flow-diagram-svg .diag-text-strong { fill: #111827; }
.flow-diagram-svg .diag-muted { fill: #64748b; }
.flow-diagram-svg .diag-faint { fill: #94a3b8; }
.flow-diagram-svg .diag-accent { fill: #7c3aed; }
.flow-diagram-svg .diag-accent-text { fill: #5b21b6; }
.flow-diagram-svg .diag-success { fill: #059669; }
.flow-diagram-svg .diag-success-bg { fill: #f0fdf4; stroke: #bbf7d0; }
.flow-diagram-svg .diag-success-text { fill: #047857; }
.flow-diagram-svg .diag-warning-bg { fill: #fffbeb; stroke: #fde68a; }
.flow-diagram-svg .diag-warning-text { fill: #92400e; }
.flow-diagram-svg .diag-danger { fill: #dc2626; }
.flow-diagram-svg .diag-code { fill: #475569; }
.flow-diagram-svg .diag-lane { fill: #f1f5f9; }
.flow-diagram-svg .diag-lane-header { fill: #e2e8f0; }
.flow-diagram-svg .diag-step-circle { fill: #7c3aed; }
.flow-diagram-svg .diag-step-text { fill: #ffffff; }
.flow-diagram-svg .diag-arrow { stroke: #cbd5e1; }
.flow-diagram-svg .diag-arrow-accent { stroke: #7c3aed; }
.flow-diagram-svg .diag-arrow-success { stroke: #059669; }
.flow-diagram-svg .diag-badge-get { fill: #059669; }
.flow-diagram-svg .diag-badge-post { fill: #7c3aed; }
.flow-diagram-svg .diag-badge-deeplink { fill: #6d28d9; }
.flow-diagram-svg .diag-badge-callback { fill: #047857; }
.flow-diagram-svg .diag-badge-text { fill: #ffffff; }
.flow-diagram-svg .diag-titlebar { fill: #f1f5f9; }
.flow-diagram-svg .diag-phone-header { fill: #7c3aed; }
.flow-diagram-svg .diag-btn { fill: #059669; }

.dark .flow-diagram-svg .diag-bg { fill: #1f2937; }
.dark .flow-diagram-svg .diag-surface { fill: #111827; }
.dark .flow-diagram-svg .diag-surface-accent { fill: #1e1b4b; }
.dark .flow-diagram-svg .diag-panel { fill: #111827; }
.dark .flow-diagram-svg .diag-border { stroke: #374151; }
.dark .flow-diagram-svg .diag-border-accent { stroke: #5b21b6; }
.dark .flow-diagram-svg .diag-text { fill: #e5e7eb; }
.dark .flow-diagram-svg .diag-text-strong { fill: #f9fafb; }
.dark .flow-diagram-svg .diag-muted { fill: #9ca3af; }
.dark .flow-diagram-svg .diag-faint { fill: #6b7280; }
.dark .flow-diagram-svg .diag-accent { fill: #a78bfa; }
.dark .flow-diagram-svg .diag-accent-text { fill: #c4b5fd; }
.dark .flow-diagram-svg .diag-success { fill: #34d399; }
.dark .flow-diagram-svg .diag-success-bg { fill: #064e3b; stroke: #047857; }
.dark .flow-diagram-svg .diag-success-text { fill: #6ee7b7; }
.dark .flow-diagram-svg .diag-warning-bg { fill: #451a03; stroke: #b45309; }
.dark .flow-diagram-svg .diag-warning-text { fill: #fcd34d; }
.dark .flow-diagram-svg .diag-danger { fill: #f87171; }
.dark .flow-diagram-svg .diag-code { fill: #d1d5db; }
.dark .flow-diagram-svg .diag-lane { fill: #111827; }
.dark .flow-diagram-svg .diag-lane-header { fill: #1f2937; }
.dark .flow-diagram-svg .diag-step-circle { fill: #7c3aed; }
.dark .flow-diagram-svg .diag-arrow { stroke: #4b5563; }
.dark .flow-diagram-svg .diag-arrow-accent { stroke: #a78bfa; }
.dark .flow-diagram-svg .diag-arrow-success { stroke: #34d399; }
.dark .flow-diagram-svg .diag-titlebar { fill: #1f2937; }
.dark .flow-diagram-svg .diag-phone-header { fill: #6d28d9; }