/* ============================================
   Enterprise Documentation Design
   Professional, clean, serious
   For banks and enterprise clients
   ============================================ */

:root {
  /* Typography - System fonts for professionalism */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
  
  /* Colors - Conservative, neutral palette */
  --color-text: #111827;
  --color-text-secondary: #4b5563;
  --color-text-muted: #6b7280;
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  --color-bg: #ffffff;
  --color-bg-secondary: #f9fafb;
  --color-bg-tertiary: #f3f4f6;
  
  /* Brand - Subdued red from FRAIM */
  --color-brand: #dc2626;
  --color-brand-dark: #b91c1c;
  --color-brand-light: #fef2f2;
  
  /* HTTP Methods - Muted, professional */
  --color-get: #059669;
  --color-post: #2563eb;
  --color-put: #d97706;
  --color-delete: #dc2626;
  --color-patch: #7c3aed;
  
  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  
  /* Layout */
  --header-height: 60px;
  --sidebar-width: 240px;
  --max-content: 800px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

/* ============================================
   HEADER - Clean, minimal
   ============================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
}

.header__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.01em;
}

.header__logo-mark {
  width: 28px;
  height: 28px;
  background: var(--color-brand);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  border-radius: 3px;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  margin-left: var(--space-12);
  flex: 1;
}

.header__link {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--space-2) 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease;
}

.header__link:hover {
  color: var(--color-text);
}

.header__link--active {
  color: var(--color-text);
  border-bottom-color: var(--color-brand);
}

/* ============================================
   SIDEBAR - Clean navigation
   ============================================ */

.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background: var(--color-bg-secondary);
  border-right: 1px solid var(--color-border);
  padding: var(--space-6) 0;
  overflow-y: auto;
  z-index: 50;
}

.sidebar__section {
  margin-bottom: var(--space-6);
  padding: 0 var(--space-4);
}

.sidebar__title {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
  padding: 0 var(--space-2);
}

.sidebar__nav {
  list-style: none;
}

.sidebar__item {
  margin-bottom: 1px;
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-2);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: 4px;
  transition: all 0.15s ease;
}

.sidebar__link:hover {
  color: var(--color-text);
  background: var(--color-bg-tertiary);
}

.sidebar__link--active {
  color: var(--color-brand);
  background: var(--color-brand-light);
  font-weight: 600;
}

.sidebar__method {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 5px;
  border-radius: 3px;
  text-transform: uppercase;
}

.sidebar__method--get { 
  background: rgba(5, 150, 105, 0.1); 
  color: var(--color-get); 
}
.sidebar__method--post { 
  background: rgba(37, 99, 235, 0.1); 
  color: var(--color-post); 
}
.sidebar__method--delete { 
  background: rgba(220, 38, 38, 0.1); 
  color: var(--color-delete); 
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main {
  margin-left: var(--sidebar-width);
  padding-top: var(--header-height);
  min-height: 100vh;
}

.content {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: var(--space-10) var(--space-8);
}

/* ============================================
   TYPOGRAPHY - Clean, readable
   ============================================ */

.content h1 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.content h2 {
  font-size: 24px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.content h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.content p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.content a {
  color: var(--color-brand);
  text-decoration: none;
  font-weight: 500;
}

.content a:hover {
  text-decoration: underline;
}

.content code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--color-bg-tertiary);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--color-text);
}

.content pre code {
  background: transparent;
  padding: 0;
  font-size: 13px;
}

/* ============================================
   BREADCRUMBS
   ============================================ */

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  font-size: 13px;
  color: var(--color-text-muted);
}

.breadcrumbs a {
  color: var(--color-text-secondary);
}

/* ============================================
   ALERTS - Professional
   ============================================ */

.alert {
  margin: var(--space-6) 0;
  padding: var(--space-4) var(--space-5);
  border-radius: 6px;
  border: 1px solid;
  font-size: 14px;
}

.alert--warning {
  background: #fffbeb;
  border-color: #fcd34d;
  color: #92400e;
}

.alert--danger {
  background: #fef2f2;
  border-color: #fca5a5;
  color: #991b1b;
}

.alert--info {
  background: #eff6ff;
  border-color: #93c5fd;
  color: #1e40af;
}

.alert__title {
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.alert p {
  margin: 0;
}

/* ============================================
   ENDPOINT CARDS - Clean, functional
   ============================================ */

.endpoint {
  margin: var(--space-6) 0;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: var(--color-bg);
}

.endpoint__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  border-radius: 6px 6px 0 0;
}

.endpoint__method {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 4px;
  flex-shrink: 0;
}

.endpoint__method--get { 
  background: rgba(5, 150, 105, 0.1); 
  color: var(--color-get); 
}
.endpoint__method--post { 
  background: rgba(37, 99, 235, 0.1); 
  color: var(--color-post); 
}
.endpoint__method--put { 
  background: rgba(217, 119, 6, 0.1); 
  color: var(--color-put); 
}
.endpoint__method--delete { 
  background: rgba(220, 38, 38, 0.1); 
  color: var(--color-delete); 
}
.endpoint__method--patch { 
  background: rgba(124, 58, 237, 0.1); 
  color: var(--color-patch); 
}

.endpoint__path {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text);
  font-weight: 500;
}

.endpoint__body {
  padding: var(--space-5);
}

.endpoint__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

.endpoint__meta {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ============================================
   CODE BLOCKS - Professional
   ============================================ */

.code-block {
  margin: var(--space-5) 0;
  border-radius: 6px;
  overflow: hidden;
  background: #1f2937;
  border: 1px solid #374151;
}

.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: #111827;
  border-bottom: 1px solid #374151;
}

.code-block__lang {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.code-block__copy {
  font-size: 12px;
  font-weight: 500;
  color: #9ca3af;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: var(--space-1) var(--space-2);
  border-radius: 3px;
  transition: all 0.15s ease;
}

.code-block__copy:hover {
  color: white;
  background: #374151;
}

.code-block pre {
  padding: var(--space-4);
  margin: 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: #f3f4f6;
}

.code-block code {
  color: #f3f4f6;
}

/* Light variant */
.code-block--light {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
}

.code-block--light .code-block__header {
  background: var(--color-bg-tertiary);
  border-color: var(--color-border);
}

.code-block--light .code-block__lang,
.code-block--light .code-block__copy {
  color: var(--color-text-muted);
}

.code-block--light .code-block__copy:hover {
  color: var(--color-text);
  background: var(--color-bg-tertiary);
}

.code-block--light pre {
  color: var(--color-text);
}

.code-block--light code {
  color: var(--color-text);
}

/* ============================================
   TABLES - Clean
   ============================================ */

.table-wrap {
  overflow-x: auto;
  margin: var(--space-5) 0;
  border: 1px solid var(--color-border);
  border-radius: 6px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.table th {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  text-align: left;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  vertical-align: top;
}

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

.table__param {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
}

.table__type {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-post);
  background: rgba(37, 99, 235, 0.08);
  padding: 2px 6px;
  border-radius: 3px;
}

.table__required {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-brand);
}

.table__optional {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ============================================
   HERO - Clean professional
   ============================================ */

.hero {
  background: var(--color-bg-secondary);
  padding: var(--space-10) 0;
  margin: 0 calc(-1 * var(--space-8)) var(--space-10);
  padding-left: var(--space-8);
  padding-right: var(--space-8);
  border-bottom: 1px solid var(--color-border);
}

.hero__label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-brand);
  margin-bottom: var(--space-3);
}

.hero__title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.hero__description {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin-bottom: var(--space-5);
}

.hero__meta {
  display: flex;
  gap: var(--space-3);
}

/* ============================================
   BADGES - Minimal
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 4px;
}

.badge--version {
  background: var(--color-bg-tertiary);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.badge--status {
  background: rgba(5, 150, 105, 0.1);
  color: var(--color-get);
}

/* ============================================
   BUTTONS - Clean
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 14px;
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: 6px;
  text-decoration: none !important;
  transition: all 0.15s ease;
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--color-brand);
  color: #ffffff !important;
}

.btn--primary:hover {
  background: var(--color-brand-dark);
  color: #ffffff !important;
}

.btn--secondary {
  background: var(--color-bg-secondary);
  color: var(--color-text) !important;
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text) !important;
}

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

.btn--secondary:hover {
  background: var(--color-bg-tertiary);
  text-decoration: none;
}

/* ============================================
   SERVICE CARDS - List style
   ============================================ */

.service-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}

.service-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  text-decoration: none;
  color: inherit;
  transition: all 0.15s ease;
}

.service-item:hover {
  border-color: #d1d5db;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  text-decoration: none;
}

.service-item__icon {
  width: 44px;
  height: 44px;
  background: var(--color-brand);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
  border-radius: 6px;
  flex-shrink: 0;
}

.service-item__content {
  flex: 1;
  min-width: 0;
}

.service-item__title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.service-item__desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0 0 var(--space-2);
}

.service-item__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
}

.service-item__arrow {
  color: var(--color-text-muted);
  font-size: 18px;
  transition: transform 0.15s ease;
}

.service-item:hover .service-item__arrow {
  color: var(--color-text-secondary);
  transform: translateX(3px);
}

.service-item--soon {
  opacity: 0.6;
}

.service-item--soon .service-item__icon {
  background: var(--color-text-muted);
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.2s ease;
  }
  
  .main {
    margin-left: 0;
  }
  
  .content {
    padding: var(--space-6);
  }
  
  .hero {
    margin: 0 calc(-1 * var(--space-6)) var(--space-8);
    padding-left: var(--space-6);
    padding-right: var(--space-6);
  }
  
  .hero__title {
    font-size: 32px;
  }
}