@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --primary-green: #017A4F;
  --bright-green: #019A62;
  --bg-white: #FFFFFF;
  --bg-subtle: #F8FAFC;
  --text-primary: #0F172A;
  --text-secondary: #475569;
  --border-color: #E2E8F0;
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-display: 'Outfit', sans-serif;
  --font-family-mono: 'JetBrains Mono', monospace;
}

/* Global Styles and Overrides */
body {
  font-family: var(--font-family-sans);
  background-color: var(--bg-white);
  color: var(--text-primary);
  margin: 0;
  padding: 0;
  padding-top: 70px; /* Offset for sticky header */
}

/* Hide default Swagger UI parts */
.swagger-ui .topbar,
.swagger-ui .info .title,
.swagger-ui .info .description,
.swagger-ui .info h2,
.swagger-ui .info p {
  display: none !important;
}

/* Custom Header styling */
.topupnaija-docs-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 70px;
  background-color: var(--bg-white);
  border-bottom: 1px solid var(--border-color);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 24px;
  box-sizing: border-box;
}

.header-container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  height: 30px;
  width: auto;
}

.logo-divider {
  color: var(--border-color);
  font-weight: 300;
  font-size: 1.2rem;
}

.logo-sub {
  font-family: var(--font-family-display);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.95rem;
  letter-spacing: -0.2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-item {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.15s ease;
}

.nav-item:hover, .nav-item.active {
  color: var(--primary-green);
}

.hamburger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1100;
}

.hamburger-menu span {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all 0.25s ease-in-out;
}

/* Layout Flex Wrapper */
.topupnaija-docs-layout {
  display: flex;
  width: 100%;
  min-height: calc(100vh - 70px);
}

/* Sidebar Navigation Styling */
.topupnaija-docs-sidebar {
  width: 280px;
  min-width: 280px;
  background-color: var(--bg-subtle);
  border-right: 1px solid var(--border-color);
  padding: 24px 16px;
  box-sizing: border-box;
  position: sticky;
  top: 70px;
  height: calc(100vh - 70px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) transparent;
}

.sidebar-brand-header {
  display: none;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 12px;
}

.sidebar-brand-header img {
  height: 28px;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-section-title {
  font-family: var(--font-family-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 8px 12px;
  margin-bottom: 4px;
}

.sidebar-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 10px 12px;
  border-radius: 8px;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sidebar-link:hover {
  background-color: rgba(1, 122, 79, 0.04);
  color: var(--primary-green);
}

.sidebar-link.active {
  background-color: rgba(1, 122, 79, 0.08);
  color: var(--primary-green);
  font-weight: 600;
}

/* Main Content Area */
.topupnaija-docs-main {
  flex-grow: 1;
  padding: 40px;
  box-sizing: border-box;
  max-width: 1120px;
  margin: 0 auto;
  overflow-x: hidden;
}

/* Hero Section Styling */
.topupnaija-docs-hero {
  margin-bottom: 48px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 36px;
}

.hero-title {
  font-family: var(--font-family-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.8px;
}

.hero-subtitle {
  font-size: 1.15rem;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.15s ease;
  cursor: pointer;
}

.hero-btn-primary {
  background-color: var(--primary-green);
  color: white;
  border: 1px solid var(--primary-green);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.hero-btn-primary:hover {
  background-color: var(--bright-green);
  border-color: var(--bright-green);
}

.hero-btn-secondary {
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.hero-btn-secondary:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

.hero-warning-banner {
  background-color: #FFFBEB;
  border-left: 4px solid #F59E0B;
  padding: 16px 20px;
  border-radius: 6px;
  color: #B45309;
  font-size: 0.95rem;
  line-height: 1.5;
}

.hero-warning-banner p {
  margin: 0;
}

/* Authentication Cards styling */
.topupnaija-docs-auth {
  margin-top: 36px;
  margin-bottom: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border-color);
}

.topupnaija-docs-auth h2 {
  font-family: var(--font-family-display);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.topupnaija-docs-auth > p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

.auth-card-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.auth-card {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
  box-sizing: border-box;
}

.auth-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.auth-card-num {
  background-color: var(--primary-green);
  color: white;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
}

.auth-card h3 {
  margin: 0;
  font-family: var(--font-family-display);
  font-size: 1.15rem;
  font-weight: 600;
}

.auth-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.5;
  margin-bottom: 16px;
}

.auth-card pre {
  background-color: var(--text-primary);
  color: #F8FAFC;
  padding: 12px;
  border-radius: 6px;
  font-family: var(--font-family-mono);
  font-size: 0.78rem;
  overflow-x: auto;
  margin: 0;
}

.auth-onboarding-callout {
  background-color: rgba(1, 122, 79, 0.03);
  border: 1px solid rgba(1, 122, 79, 0.15);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
}

.auth-onboarding-callout h4 {
  font-family: var(--font-family-display);
  font-size: 1.2rem;
  color: var(--primary-green);
  margin-top: 0;
  margin-bottom: 10px;
  font-weight: 600;
}

.auth-onboarding-callout p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
  max-width: 650px;
  margin: 0 auto 20px auto;
}

.auth-callout-btn {
  display: inline-flex;
  padding: 10px 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
  background-color: var(--primary-green);
  border-radius: 6px;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.auth-callout-btn:hover {
  background-color: var(--bright-green);
}

/* Swagger Default Styles Overrides */
.swagger-ui {
  color: var(--text-primary) !important;
  font-family: var(--font-family-sans) !important;
}

.swagger-ui .info {
  margin: 0 0 30px 0 !important;
}

.swagger-ui .scheme-container {
  background-color: var(--bg-subtle) !important;
  border: 1px solid var(--border-color) !important;
  border-radius: 12px !important;
  padding: 20px !important;
  box-shadow: none !important;
  margin-bottom: 40px !important;
}

/* Tag Sections styling */
.swagger-ui .opblock-tag-section {
  border-bottom: 1px solid var(--border-color) !important;
  padding-bottom: 24px !important;
  margin-bottom: 36px !important;
}

.swagger-ui .opblock-tag {
  font-family: var(--font-family-display) !important;
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  border: none !important;
  padding: 0 !important;
  margin: 0 0 20px 0 !important;
  color: var(--text-primary) !important;
  display: block !important;
}

.swagger-ui .opblock-tag span {
  font-family: var(--font-family-display) !important;
  font-weight: 700 !important;
}

.swagger-ui .opblock-tag p {
  color: var(--text-secondary) !important;
  font-size: 0.95rem !important;
  font-weight: 400 !important;
  line-height: 1.5 !important;
  margin-top: 6px !important;
}

/* Operations styling */
.swagger-ui .opblock {
  border: 1px solid var(--border-color) !important;
  border-radius: 8px !important;
  box-shadow: none !important;
  background-color: var(--bg-white) !important;
  margin-bottom: 16px !important;
  overflow: hidden;
}

.swagger-ui .opblock .opblock-summary {
  padding: 12px 16px !important;
}

.swagger-ui .opblock .opblock-summary-method {
  border-radius: 4px !important;
  font-weight: 700 !important;
  min-width: 80px !important;
  text-align: center !important;
  padding: 6px 12px !important;
}

/* Method badge custom colors */
.swagger-ui .opblock-post .opblock-summary-method {
  background-color: var(--primary-green) !important;
  color: white !important;
}
.swagger-ui .opblock-get .opblock-summary-method {
  background-color: #0284C7 !important;
  color: white !important;
}
.swagger-ui .opblock-patch .opblock-summary-method {
  background-color: #E2E8F0 !important;
  color: var(--text-primary) !important;
}
.swagger-ui .opblock-delete .opblock-summary-method {
  background-color: #DC2626 !important;
  color: white !important;
}

.swagger-ui .opblock-post { border-left: 4px solid var(--primary-green) !important; background-color: var(--bg-white) !important; }
.swagger-ui .opblock-get { border-left: 4px solid #0284C7 !important; background-color: var(--bg-white) !important; }
.swagger-ui .opblock-patch { border-left: 4px solid #94A3B8 !important; background-color: var(--bg-white) !important; }
.swagger-ui .opblock-delete { border-left: 4px solid #DC2626 !important; background-color: var(--bg-white) !important; }

/* Interactive Buttons */
.swagger-ui .btn.authorize,
.swagger-ui .btn.execute,
.swagger-ui .btn.try-out__btn {
  background-color: var(--primary-green) !important;
  border-color: var(--primary-green) !important;
  color: white !important;
  border-radius: 6px !important;
  font-weight: 600 !important;
  transition: background-color 0.15s ease !important;
}

.swagger-ui .btn.authorize:hover,
.swagger-ui .btn.execute:hover,
.swagger-ui .btn.try-out__btn:hover {
  background-color: var(--bright-green) !important;
  border-color: var(--bright-green) !important;
}

.swagger-ui .btn.authorize svg {
  fill: white !important;
}

/* Footer Styling */
.topupnaija-docs-footer {
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-color);
  padding: 40px 24px;
  margin-top: 48px;
}

.footer-content {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-left .copyright {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.15s ease;
}

.footer-links a:hover {
  color: var(--primary-green);
}

.footer-right .powered-by {
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 500;
}

/* Hamburger animations */
.hamburger-menu.active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger-menu.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-menu.active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Mobile Responsiveness Rules */
@media (max-width: 992px) {
  .hamburger-menu {
    display: flex;
  }
  
  .nav-links {
    display: none;
  }

  .topupnaija-docs-sidebar {
    position: fixed;
    top: 70px;
    left: -290px;
    width: 280px;
    height: calc(100vh - 70px);
    z-index: 999;
    box-shadow: 10px 0 30px rgba(0,0,0,0.1);
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .topupnaija-docs-sidebar.active {
    left: 0;
  }

  .topupnaija-docs-sidebar .sidebar-brand-header {
    display: block;
  }

  .topupnaija-docs-main {
    padding: 30px 20px;
  }

  .auth-card-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  body {
    padding-top: 60px;
  }
  
  .topupnaija-docs-header {
    height: 60px;
    padding: 0 16px;
  }
  
  .topupnaija-docs-sidebar {
    top: 60px;
    height: calc(100vh - 60px);
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .hero-subtitle {
    font-size: 1rem;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .footer-links {
    justify-content: center;
    width: 100%;
  }
}

/* Environments & Limits Section */
.topupnaija-docs-environments {
  margin-top: 36px;
  margin-bottom: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--border-color);
}
.topupnaija-docs-environments h2 {
  font-family: var(--font-family-display);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}
.topupnaija-docs-environments > p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 24px;
  line-height: 1.6;
}
.table-container {
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  margin-bottom: 28px;
  background-color: var(--bg-white);
}
.topupnaija-docs-environments table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}
.topupnaija-docs-environments th,
.topupnaija-docs-environments td {
  padding: 14px 18px;
  font-size: 0.9rem;
}
.topupnaija-docs-environments th {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
}
.topupnaija-docs-environments td {
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}
.topupnaija-docs-environments tr:last-child td {
  border-bottom: none;
}
.topupnaija-docs-environments code {
  background-color: var(--bg-subtle);
  color: var(--primary-green);
  padding: 3px 6px;
  border-radius: 4px;
  font-family: var(--font-family-mono);
  font-size: 0.82rem;
}
.environments-callout {
  background-color: #F8FAFC;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 24px;
}
.environments-callout h3 {
  font-family: var(--font-family-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin-top: 0;
  margin-bottom: 12px;
}
.environments-callout p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 16px;
}
.environments-callout ul {
  margin: 0;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.environments-callout li {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.5;
}

/* Spinner Styles */
.spinner-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}
.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-green);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Fix for Logo sizing & Logo alignment */
.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}