.block-container {
  font-family: 'Nunito Sans', system-ui, -apple-system, sans-serif;
  color: var(--color-text-primary, #1e293b);
  line-height: 1.75;
  letter-spacing: 0.01em;
  white-space: normal; 
  word-wrap: break-word;
  overflow-wrap: break-word;
  max-width: 680px;
}

.block-paragraph {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.75;
}
.block-paragraph:last-child {
  margin-bottom: 0;
}

.block-heading {
  font-weight: 800;
  line-height: 1.25;
  margin: 28px 0 12px;
  color: var(--color-text-primary, #1e293b);
  letter-spacing: -0.02em;
}
.block-heading:first-child {
  margin-top: 0;
}
.block-heading-1 { font-size: 32px; }
.block-heading-2 { font-size: 26px; }
.block-heading-3 { font-size: 22px; }
.block-heading-4 { font-size: 18px; }
.block-heading-5 { font-size: 16px; }
.block-heading-6 { font-size: 16px; font-weight: 600; }

.block-unordered-list,
.block-ordered-list {
  margin: 8px 0 16px;
  padding-left: 24px;
  list-style-position: outside;
}
.block-unordered-list {
  list-style-type: disc;
}
.block-ordered-list {
  list-style-type: decimal;
}
.block-list-item {
  margin: 6px 0;
  font-size: 16px;
  line-height: 1.7;
  display: list-item;
}
.block-list-item::marker {
  color: var(--wf-text-secondary, #64748b);
}
.block-unordered-list.block-nested {
  margin: 4px 0 0;
  list-style-type: circle;
}

.block-divider {
  border: none;
  border-top: 1px solid var(--wf-border, #e2e8f0);
  margin: 24px 0;
}
.block-divider--dashed {
  border-top-style: dashed;
}

.block-emphasis-box {
  padding: 14px 0 14px 18px;
  border-radius: 0;
  margin: 16px 0;
  border-left: 3px solid;
  font-size: 15px;
  background: transparent;
  color: inherit;
}
.block-emphasis-box__title {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-primary, #1e293b);
}
.block-emphasis-box__content {
  line-height: 1.65;
  color: var(--wf-text-muted, #475569);
}

.block-emphasis-box--info {
  border-left-color: #94a3b8;
}
.block-emphasis-box--warning {
  border-left-color: #d97706;
}
.block-emphasis-box--success {
  border-left-color: #059669;
}
.block-emphasis-box--error {
  border-left-color: #dc2626;
}

.block-code-wrapper {
  position: relative;
  margin: 12px 0;
}
.block-code-block {
  background: #f8f9fa;
  border: 1px solid #d1d5db;
  border-radius: 0;
  padding: 14px 16px;
  overflow-x: auto;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 13px;
  line-height: 1.5;
  margin: 0;
  white-space: pre;
  color: #334155;
}
.block-code-wrapper .block-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
}

.block-inline-code {
  background: rgba(128, 128, 128, 0.08);
  color: var(--wf-text, #384551);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
  font-size: 0.9em;
}

.block-table-wrapper {
  margin: 12px 0;
  overflow-x: auto;
  border-radius: 0;
  border: 1px solid var(--wf-border, #d1d5db);
}
.block-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.block-table th {
  background: var(--wf-neutral-bg, #f8fafc);
  padding: 10px 14px;
  text-align: left;
  font-weight: 700;
  font-size: 13px;
  border-bottom: 2px solid var(--wf-border, #e2e8f0);
  color: var(--color-text-primary, #1e293b);
}
.block-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--wf-border, #e2e8f0);
  line-height: 1.5;
}
.block-table tbody tr:last-child td {
  border-bottom: none;
}
.block-table tbody tr:hover {
  background: rgba(128, 128, 128, 0.03);
}

.block-translation-section {
  position: relative;
  padding: 14px 18px;
  border: 1px solid var(--wf-border, #d1d5db);
  border-radius: 0;
  margin: 10px 0;
  background: transparent;
}
.block-translation-section__lang {
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-primary, #384551);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}
.block-translation-section__content {
  font-size: 15px;
  line-height: 1.65;
}
.block-translation-section .block-copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
}

.block-definition-list {
  margin: 12px 0;
}
.block-definition-term {
  font-weight: 700;
  font-size: 14px;
  margin-top: 12px;
  margin-bottom: 3px;
  color: var(--color-text-primary, #1e293b);
}
.block-definition-term:first-child {
  margin-top: 0;
}
.block-definition-def {
  margin-left: 0;
  margin-bottom: 8px;
  padding-left: 16px;
  font-size: 15px;
  color: var(--wf-text-muted, #64748b);
  border-left: 2px solid var(--wf-border, #e2e8f0);
}

.block-blockquote {
  margin: 12px 0;
  padding: 14px 18px;
  border-left: 4px solid var(--color-text-primary, #384551);
  background: transparent;
  border-radius: 0;
  position: relative;
}
.block-blockquote__cite {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-primary, #384551);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
}
.block-blockquote__content {
  font-size: 15px;
  line-height: 1.65;
  font-style: italic;
  color: var(--wf-text-muted, #475569);
}
.block-blockquote .block-copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
}

.block-checklist {
  margin: 8px 0 16px;
  padding: 0;
  list-style: none;
}
.block-checklist__item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0;
  padding: 8px 0;
  font-size: 16px;
  line-height: 1.55;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  cursor: default;
  transition: background 100ms ease;
}
.block-checklist__item:last-child {
  border-bottom: none;
}
.block-checklist__item:hover {
  background: rgba(0, 0, 0, 0.015);
}

.block-checklist__checkbox {
  -webkit-appearance: none;
  appearance: none;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border: 2px solid #94a3b8;
  border-radius: 3px;
  background: transparent;
  cursor: pointer;
  position: relative;
  transition: border-color 150ms ease, background 150ms ease;
}
.block-checklist__checkbox:hover {
  border-color: var(--color-text-primary, #384551);
}
.block-checklist__checkbox:checked {
  background: var(--color-text-primary, #384551);
  border-color: var(--color-text-primary, #384551);
}
.block-checklist__checkbox:checked::after {
  content: '';
  position: absolute;
  top: 1px;
  left: 4px;
  width: 5px;
  height: 9px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.block-checklist__checkbox:focus-visible {
  outline: 2px solid rgba(100, 116, 139, 0.5);
  outline-offset: 2px;
}
.block-checklist__item--done .block-checklist__text {
  text-decoration: line-through;
  color: var(--wf-text-muted, #94a3b8);
}
.block-checklist__text {
  flex: 1;
}

.block-key-value {
  margin: 12px 0;
  border: 1px solid var(--wf-border, #d1d5db);
  border-radius: 0;
  overflow: hidden;
}
.block-key-value__title {
  padding: 10px 16px;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-primary, #384551);
  background: var(--wf-neutral-bg, #f8fafc);
  border-bottom: 1px solid var(--wf-border, #e2e8f0);
}
.block-key-value__grid {
  padding: 4px 0;
}
.block-key-value__row {
  display: flex;
  padding: 8px 16px;
  gap: 12px;
  font-size: 14px;
  line-height: 1.5;
}
.block-key-value__row:not(:last-child) {
  border-bottom: 1px solid var(--wf-border, #f1f5f9);
}
.block-key-value__key {
  flex: 0 0 140px;
  font-weight: 600;
  color: var(--wf-text-muted, #64748b);
  font-size: 13px;
}
.block-key-value__val {
  flex: 1;
  color: var(--color-text-primary, #1e293b);
}

.block-section-header {
  margin: 28px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--wf-border, #d1d5db);
}
.block-section-header:first-child {
  margin-top: 0;
}
.block-section-header__icon {
  display: none; 
}
.block-section-header__label {
  font-weight: 700;
  font-size: 18px;
  color: var(--color-text-primary, #384551);
  text-transform: none;
  letter-spacing: -0.01em;
}

.block-metric-row {
  display: flex;
  gap: 0;
  margin: 16px 0;
  flex-wrap: wrap;
  border: 1px solid var(--wf-border, #d1d5db);
  border-radius: 0;
  overflow: hidden;
}
.block-metric-card {
  flex: 1;
  min-width: 100px;
  padding: 14px 16px;
  border-radius: 0;
  border: none;
  border-right: 1px solid var(--wf-border, #d1d5db);
  background: transparent;
  text-align: left;
}
.block-metric-card:last-child {
  border-right: none;
}
.block-metric-card__value {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text-primary, #384551);
  line-height: 1.3;
}
.block-metric-card__unit {
  font-size: 13px;
  font-weight: 600;
  color: var(--wf-text-muted, #64748b);
}
.block-metric-card__label {
  font-size: 13px;
  color: var(--wf-text-muted, #64748b);
  margin-top: 2px;
  font-weight: 600;
}

.block-badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}
.block-badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 2px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.02em;
  border: 1px solid;
}
.block-badge--default {
  background: transparent;
  color: var(--wf-text-muted, #64748b);
  border-color: var(--wf-border, #d1d5db);
}
.block-badge--primary {
  background: transparent;
  color: var(--color-text-primary, #384551);
  border-color: var(--color-text-primary, #384551);
}
.block-badge--success {
  background: transparent;
  color: #059669;
  border-color: #059669;
}
.block-badge--warning {
  background: transparent;
  color: #d97706;
  border-color: #d97706;
}
.block-badge--error {
  background: transparent;
  color: #dc2626;
  border-color: #dc2626;
}
.block-badge--info {
  background: transparent;
  color: #2563eb;
  border-color: #2563eb;
}

.block-signature {
  margin: 24px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--wf-border, #e2e8f0);
  text-align: right;
}
.block-signature__name {
  font-weight: 700;
  font-size: 15px;
  color: var(--color-text-primary, #1e293b);
}
.block-signature__role {
  font-size: 13px;
  color: var(--wf-text-muted, #64748b);
  margin-top: 2px;
}
.block-signature__date {
  font-size: 13px;
  color: var(--wf-text-muted, #94a3b8);
  margin-top: 2px;
}
.block-signature__org {
  font-size: 13px;
  color: var(--wf-text-muted, #94a3b8);
  font-style: italic;
  margin-top: 2px;
}

.block-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  padding: 0;
  background: var(--wf-card, #ffffff);
  border: 1px solid var(--wf-border, #e2e8f0);
  border-radius: 6px;
  cursor: pointer;
  color: var(--wf-text-muted, #94a3b8);
  transition: all 150ms ease;
  z-index: 2;
}
.block-copy-btn:hover {
  color: var(--color-text-primary, #384551);
  border-color: var(--color-text-primary, #384551);
  background: rgba(56, 69, 81, 0.04);
}
.block-copy-btn--success {
  color: #10b981;
  border-color: #10b981;
  background: rgba(16, 185, 129, 0.06);
}

[data-theme="dark"] .block-container {
  color: var(--color-text-primary, #e2e8f0);
}

[data-theme="dark"] .block-heading {
  color: var(--color-text-primary, #f1f5f9);
}

[data-theme="dark"] .block-divider {
  border-top-color: var(--wf-border, #334155);
}

[data-theme="dark"] .block-emphasis-box {
  color: inherit;
}
[data-theme="dark"] .block-emphasis-box__title {
  color: var(--color-text-primary, #f1f5f9);
}
[data-theme="dark"] .block-emphasis-box__content {
  color: var(--wf-text-muted, #94a3b8);
}
[data-theme="dark"] .block-emphasis-box--info {
  border-left-color: #64748b;
}
[data-theme="dark"] .block-emphasis-box--warning {
  border-left-color: #fbbf24;
}
[data-theme="dark"] .block-emphasis-box--success {
  border-left-color: #6ee7b7;
}
[data-theme="dark"] .block-emphasis-box--error {
  border-left-color: #fca5a5;
}

[data-theme="dark"] .block-code-block {
  background: #1e293b;
  border-color: #334155;
  color: #e2e8f0;
}

[data-theme="dark"] .block-inline-code {
  background: rgba(148, 163, 184, 0.15);
}

[data-theme="dark"] .block-table-wrapper {
  border-color: var(--wf-border, #334155);
}
[data-theme="dark"] .block-table th {
  background: var(--wf-neutral-bg, #1e293b);
  border-bottom-color: var(--wf-border, #334155);
  color: var(--color-text-primary, #f1f5f9);
}
[data-theme="dark"] .block-table td {
  border-bottom-color: var(--wf-border, #334155);
}
[data-theme="dark"] .block-table tbody tr:hover {
  background: rgba(148, 163, 184, 0.06);
}

[data-theme="dark"] .block-translation-section {
  border-color: var(--wf-border, #334155);
  background: var(--wf-card, #1e293b);
}

[data-theme="dark"] .block-definition-term {
  color: var(--color-text-primary, #f1f5f9);
}
[data-theme="dark"] .block-definition-def {
  color: var(--wf-text-muted, #94a3b8);
  border-left-color: var(--wf-border, #334155);
}

[data-theme="dark"] .block-blockquote {
  background: transparent;
}
[data-theme="dark"] .block-blockquote__content {
  color: var(--wf-text-muted, #94a3b8);
}

[data-theme="dark"] .block-checklist__item {
  border-bottom-color: rgba(255, 255, 255, 0.04);
}
[data-theme="dark"] .block-checklist__item:hover {
  background: rgba(255, 255, 255, 0.02);
}
[data-theme="dark"] .block-checklist__checkbox {
  border-color: #64748b;
}
[data-theme="dark"] .block-checklist__checkbox:hover {
  border-color: #94a3b8;
}
[data-theme="dark"] .block-checklist__checkbox:checked {
  background: #e2e8f0;
  border-color: #e2e8f0;
}
[data-theme="dark"] .block-checklist__checkbox:checked::after {
  border-color: #1e293b;
}
[data-theme="dark"] .block-checklist__item--done .block-checklist__text {
  color: var(--wf-text-muted, #64748b);
}

[data-theme="dark"] .block-key-value {
  border-color: var(--wf-border, #334155);
}
[data-theme="dark"] .block-key-value__title {
  background: var(--wf-neutral-bg, #1e293b);
  border-bottom-color: var(--wf-border, #334155);
}
[data-theme="dark"] .block-key-value__row:not(:last-child) {
  border-bottom-color: var(--wf-border, #1e293b);
}
[data-theme="dark"] .block-key-value__key {
  color: var(--wf-text-muted, #94a3b8);
}
[data-theme="dark"] .block-key-value__val {
  color: var(--color-text-primary, #e2e8f0);
}

[data-theme="dark"] .block-section-header {
  border-bottom-color: var(--wf-border, #475569);
}

[data-theme="dark"] .block-metric-row {
  border-color: var(--wf-border, #334155);
}
[data-theme="dark"] .block-metric-card {
  border-right-color: var(--wf-border, #334155);
  background: transparent;
}
[data-theme="dark"] .block-metric-card__unit,
[data-theme="dark"] .block-metric-card__label {
  color: var(--wf-text-muted, #94a3b8);
}

[data-theme="dark"] .block-badge--default {
  background: transparent;
  color: #cbd5e1;
  border-color: var(--wf-border, #475569);
}
[data-theme="dark"] .block-badge--primary {
  background: transparent;
  color: #e2e8f0;
  border-color: #94a3b8;
}
[data-theme="dark"] .block-badge--success {
  background: transparent;
  color: #6ee7b7;
  border-color: #6ee7b7;
}
[data-theme="dark"] .block-badge--warning {
  background: transparent;
  color: #fbbf24;
  border-color: #fbbf24;
}
[data-theme="dark"] .block-badge--error {
  background: transparent;
  color: #fca5a5;
  border-color: #fca5a5;
}
[data-theme="dark"] .block-badge--info {
  background: transparent;
  color: #93bbfd;
  border-color: #93bbfd;
}

[data-theme="dark"] .block-signature {
  border-top-color: var(--wf-border, #334155);
}
[data-theme="dark"] .block-signature__name {
  color: var(--color-text-primary, #f1f5f9);
}
[data-theme="dark"] .block-signature__role {
  color: var(--wf-text-muted, #94a3b8);
}
[data-theme="dark"] .block-signature__date,
[data-theme="dark"] .block-signature__org {
  color: var(--wf-text-muted, #64748b);
}

[data-theme="dark"] .block-copy-btn {
  background: var(--wf-card, #1e293b);
  border-color: var(--wf-border, #334155);
  color: var(--wf-text-muted, #64748b);
}
[data-theme="dark"] .block-copy-btn:hover {
  color: #e2e8f0;
  border-color: #e2e8f0;
  background: rgba(226, 232, 240, 0.1);
}

@media (max-width: 768px) {
  .block-container { max-width: 100%; }
  .block-heading-1 { font-size: 26px; }
  .block-heading-2 { font-size: 22px; }
  .block-heading-3 { font-size: 19px; }

  .block-code-block {
    white-space: pre-wrap;
    word-break: break-word;
    font-size: 12px;
    padding: 12px;
  }

  .block-table {
    font-size: 13px;
  }
  .block-table th,
  .block-table td {
    padding: 8px 10px;
  }

  .block-translation-section {
    padding: 12px 14px;
  }

  .block-emphasis-box {
    padding: 10px 14px;
  }

  .block-definition-term {
    font-size: 15px;
  }
  .block-definition-def {
    padding-left: 12px;
    font-size: 14px;
  }

  .block-key-value__row {
    flex-direction: column;
    gap: 2px;
  }
  .block-key-value__key {
    flex: none;
  }

  .block-metric-row {
    flex-direction: column;
  }
  .block-metric-card {
    min-width: unset;
    border-right: none;
    border-bottom: 1px solid var(--wf-border, #d1d5db);
  }
  .block-metric-card:last-child {
    border-bottom: none;
  }
  .block-metric-card__value {
    font-size: 20px;
  }

  .block-section-header__label {
    font-size: 16px;
  }

  .block-signature {
    text-align: left;
  }
}

.block-error-fallback {
  padding: 12px 16px;
  margin: 6px 0;
  background: rgba(225, 29, 72, 0.04);
  border-left: 3px solid rgba(225, 29, 72, 0.3);
  border-radius: 4px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--block-text, #334155);
}
[data-theme="dark"] .block-error-fallback {
  background: rgba(244, 63, 94, 0.06);
  border-left-color: rgba(244, 63, 94, 0.3);
  color: var(--block-text, #e2e8f0);
}

.block-container > * {
  animation: blockReveal 350ms cubic-bezier(.4, 0, .2, 1) both;
}
.block-container > *:nth-child(1)  { animation-delay:  0ms; }
.block-container > *:nth-child(2)  { animation-delay:  40ms; }
.block-container > *:nth-child(3)  { animation-delay:  80ms; }
.block-container > *:nth-child(4)  { animation-delay: 120ms; }
.block-container > *:nth-child(5)  { animation-delay: 160ms; }
.block-container > *:nth-child(6)  { animation-delay: 200ms; }
.block-container > *:nth-child(7)  { animation-delay: 240ms; }
.block-container > *:nth-child(8)  { animation-delay: 280ms; }
.block-container > *:nth-child(9)  { animation-delay: 320ms; }
.block-container > *:nth-child(10) { animation-delay: 360ms; }
.block-container > *:nth-child(n+11) { animation-delay: 400ms; }

@keyframes blockReveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .block-container > * {
    animation: none;
  }
}

.block-copy-btn--success {
  color: #10b981;
  border-color: #10b981;
  background: rgba(16, 185, 129, 0.06);
  animation: copyPulse 600ms cubic-bezier(.4, 0, .2, 1);
}
@keyframes copyPulse {
  0%   { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  50%  { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@media print {
  .block-container {
    max-width: 100%;
  }
  .block-container [data-block-ui="true"] {
    display: none !important;
  }
  .block-code { break-inside: avoid; }
  .block-table { break-inside: avoid; }
  .block-metric-grid { break-inside: avoid; }
  .block-section { break-before: auto; }
  .block-error-fallback { border-left-color: #999; background: #f5f5f5; }
}