:root {
  --color-accent: #007aff;
  --color-bg-start: #f7f8fc;
  --color-bg-end: #eff2f8;
  --color-surface: #ffffff;
  --color-checklist-bg: #fdfdff;
  --color-text-primary: #1d1d1f;
  --color-text-secondary: #5a6470;
  --color-border: #e8e9ec;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --spacing-unit: 1rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --shadow-soft: 0 4px 16px rgba(30, 40, 60, 0.06);
  --shadow-soft-hover: 0 6px 20px rgba(30, 40, 60, 0.09);
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.dark-mode {
  --color-accent: #0a84ff;
  --color-bg-start: #0e1118;
  --color-bg-end: #141821;
  --color-surface: #1c1f26;
  --color-checklist-bg: #21252e;
  --color-text-primary: #f5f5f7;
  --color-text-secondary: #a1aab3;
  --color-border: #30343a;
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.15);
  --shadow-soft-hover: 0 6px 24px rgba(0, 0, 0, 0.2);
}
body {
  margin: 0;
  font-family: var(--font-main);
  background-image: linear-gradient(170deg, var(--color-bg-start), var(--color-bg-end));
  background-attachment: fixed;
  color: var(--color-text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.page-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--spacing-unit);
}
.main-content {
  padding: calc(var(--spacing-unit) * 3) 0;
}
.section-title {
  text-align: center;
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 2.8rem);
  margin: calc(var(--spacing-unit) * 2) 0 calc(var(--spacing-unit) * 4) 0;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}
.obrcredit-container > p {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-unit);
  color: var(--color-text-secondary);
  text-align: left;
}
.centered-image {
  margin: calc(var(--spacing-unit) * 3) auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  max-width: 100%;
  height: auto;
  display: block;
}
.content-section {
  background-color: var(--color-surface);
  padding: calc(var(--spacing-unit) * 2.5);
  border-radius: var(--radius-lg);
  margin-bottom: calc(var(--spacing-unit) * 3);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}
.content-section:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft-hover);
}
.content-section h2 {
  font-size: clamp(1.6rem, 4vw, 2rem);
  font-weight: 600;
  margin: 0 0 var(--spacing-unit) 0;
  padding-bottom: var(--spacing-unit);
  border-bottom: 1px solid var(--color-border);
  letter-spacing: -0.01em;
  color: var(--color-accent);
}
.side-by-side-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: calc(var(--spacing-unit) * 3);
  align-items: start;
}
.checklist-wrapper {
  position: sticky;
  top: calc(var(--spacing-unit) * 2);
}
.checklist-container {
  background-color: var(--color-checklist-bg);
  border-radius: var(--radius-lg);
  padding: calc(var(--spacing-unit) * 2);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-soft);
  transition: var(--transition-smooth);
}
.checklist-container:hover {
  box-shadow: var(--shadow-soft-hover);
}
.checklist-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: calc(var(--spacing-unit) * 2);
  margin-bottom: calc(var(--spacing-unit) * 1.5);
  padding-bottom: calc(var(--spacing-unit) * 1.5);
  border-bottom: 1px solid var(--color-border);
}
.checklist-logos img {
  height: 45px;
  object-fit: contain;
  transition: var(--transition-smooth);
}
.dark-mode .checklist-logos img {
  filter: brightness(0) invert(1) opacity(0.7);
}
.checklist-subtitle {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-text-primary);
  margin: 0 auto calc(var(--spacing-unit) * 2) auto;
  line-height: 1.3;
  text-align: center;
  letter-spacing: -0.01em;
}
.checklist-steps {
  position: relative;
  text-align: left;
}
.checklist-steps::before {
  content: '';
  position: absolute;
  left: 17px;
  top: 5px;
  bottom: 5px;
  width: 1px;
  background-color: var(--color-border);
  z-index: 0;
}
.checklist-step {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-unit);
  margin-bottom: calc(var(--spacing-unit) * 1.5);
  position: relative;
  z-index: 1;
}
.step-number {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  background-color: var(--color-accent);
  color: #ffffff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  font-weight: 600;
  border: 2px solid var(--color-checklist-bg);
}
.step-content {
  padding-top: 0.25rem;
}
.step-title {
  font-weight: 600;
  font-size: 0.9rem;
  line-height: 1.3;
  margin-bottom: calc(var(--spacing-unit) / 4);
  color: var(--color-text-primary);
}
.step-description {
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}
.additional-info {
  margin-top: calc(var(--spacing-unit) * 2);
  padding-top: calc(var(--spacing-unit) * 1.5);
  border-top: 1px solid var(--color-border);
}
.additional-info h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: calc(var(--spacing-unit) * 1.2) 0 var(--spacing-unit) 0;
  color: var(--color-text-primary);
}
.additional-info ul {
  padding-left: 1.5rem;
  margin: var(--spacing-unit) 0;
}
.additional-info li {
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
}
.additional-info a {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity 0.2s;
}
.additional-info a:hover {
  opacity: 0.8;
  text-decoration: underline;
}
.content-docs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: transparent;
  border: 2px solid var(--color-accent);
  border-radius: 2rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition-smooth);
  cursor: pointer;
}
.content-docs-btn:hover {
  background-color: var(--color-accent);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 122, 255, 0.2);
}
.dark-mode .content-docs-btn:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}
.content-docs-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}
.content-docs-grid--single {
  justify-content: flex-start;
}
@media (max-width: 992px) {
  .side-by-side-layout {
    grid-template-columns: 1fr;
    gap: calc(var(--spacing-unit) * 2.5);
  }
  .checklist-wrapper {
    position: static;
    top: auto;
  }
}
@media (max-width: 768px) {
  .main-content {
    padding: calc(var(--spacing-unit) * 2) 0;
  }
  .content-section,
  .checklist-container {
    padding: calc(var(--spacing-unit) * 1.5);
  }
  .centered-image {
    margin-top: calc(var(--spacing-unit) * 2);
    margin-bottom: calc(var(--spacing-unit) * 2.5);
    border-radius: var(--radius-md);
  }
  .checklist-logos img {
    height: 40px;
  }
  .section-title {
    margin-bottom: calc(var(--spacing-unit) * 3);
  }
  .obrcredit-container > p {
    font-size: 1rem;
  }
  .content-section h2 {
    font-size: 1.5rem;
  }
  .checklist-subtitle {
    font-size: 1.2rem;
  }
  .content-docs-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.85rem;
  }
  .content-docs-grid {
    gap: 0.75rem;
    margin: 1rem 0;
  }
}
@media (max-width: 480px) {
  .content-section {
    padding: var(--spacing-unit);
  }
  .checklist-container {
    padding: var(--spacing-unit);
  }
  .step-content {
    padding-top: 0;
  }
  .checklist-logos {
    gap: var(--spacing-unit);
  }
  .checklist-logos img {
    height: 32px;
  }
  .step-number {
    width: 28px;
    height: 28px;
    font-size: 0.9rem;
  }
  .step-title {
    font-size: 0.85rem;
  }
  .step-description {
    font-size: 0.8rem;
  }
  .additional-info h4 {
    font-size: 1rem;
  }
  .content-docs-btn {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
  .content-docs-grid {
    flex-direction: column;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}