/* ============================================================================
   STONEJS DEMO - MODERN CORPORATE DESIGN SYSTEM - 1.1.0 
   ============================================================================

   A clean, blocky, corporate design system with:
   - Strong geometric shapes and clear boundaries
   - Professional color palette
   - Consistent spacing using 8px grid system
   - Accessible contrast ratios
   - Responsive design patterns

   ========================================================================== */

/* ----------------------------------------------------------------------------
   CSS RESET & BASE STYLES
   -------------------------------------------------------------------------- */

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

:root {
  /* Corporate Color Palette */
  --color-primary: #1a56db;          /* Professional blue */
  --color-primary-dark: #1e429f;     /* Darker blue for hover */
  --color-primary-light: #3f83f8;    /* Lighter blue for accents */

  --color-secondary: #0e7490;        /* Teal */
  --color-secondary-dark: #155e75;   /* Dark teal */

  --color-success: #047857;          /* Green */
  --color-warning: #c2410c;          /* Orange */
  --color-error: #b91c1c;            /* Red */
  --color-info: #1e40af;             /* Blue */

  /* Neutral Grays */
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Typography */
  --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;

  /* Spacing (8px grid) */
  --space-1: 0.5rem;   /* 8px */
  --space-2: 1rem;     /* 16px */
  --space-3: 1.5rem;   /* 24px */
  --space-4: 2rem;     /* 32px */
  --space-6: 3rem;     /* 48px */
  --space-8: 4rem;     /* 64px */

  /* Borders */
  --border-radius: 0.375rem;    /* 6px - subtle rounding */
  --border-radius-lg: 0.5rem;   /* 8px */
  --border-width: 2px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

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

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--color-gray-800);
  background: var(--color-gray-50);
}

/* ----------------------------------------------------------------------------
   LAYOUT SYSTEM - SIDEBAR DESIGN
   -------------------------------------------------------------------------- */

body {
  padding-top: 64px; /* Height of fixed header */
}

/* Fixed Header Bar */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--color-gray-800);
  border-bottom: 3px solid var(--color-primary);
  box-shadow: var(--shadow-md);
  z-index: 1000;
}

.header-content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  height: 100%;
  padding: 0 var(--space-3);
  max-width: 100%;
}

/* Hamburger Menu Toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--border-radius);
  transition: background 0.2s ease;
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

.menu-toggle span {
  width: 24px;
  height: 3px;
  background: white;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.logo:hover {
  opacity: 0.9;
  text-decoration: none;
}

.logo img {
  height: 32px;
  width: auto;
}

.header-info {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.version {
  font-size: 0.75rem;
  color: var(--color-gray-400);
  font-family: var(--font-mono);
}

/* Sidebar Navigation */
.sidebar {
  position: fixed;
  top: 64px;
  left: 0;
  width: 280px;
  height: calc(100vh - 64px);
  background: white;
  border-right: 2px solid var(--color-gray-200);
  overflow-y: auto;
  z-index: 900;
  transition: transform 0.3s ease;
}

.sidebar-nav {
  padding: var(--space-3);
}

.nav-section {
  margin-bottom: var(--space-4);
}

.nav-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  margin-bottom: var(--space-2);
  padding: 0 var(--space-2);
}

.nav-link {
  display: block;
  padding: var(--space-2);
  color: var(--color-gray-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  border-radius: var(--border-radius);
  transition: all 0.2s ease;
  border: 2px solid transparent;
  margin-bottom: 2px;
}

.nav-link:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
  text-decoration: none;
  border-color: var(--color-gray-200);
}

.nav-link.active {
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  border-color: var(--color-primary-dark);
}

/* Main Content Area */
.main-content {
  margin-left: 280px;
  padding: var(--space-6) var(--space-4);
  max-width: 1200px;
  min-height: calc(100vh - 64px - 120px);
}

/* Footer */
.footer {
  margin-left: 280px;
  background: var(--color-gray-800);
  color: var(--color-gray-300);
  padding: var(--space-4);
  border-top: 3px solid var(--color-primary);
}

.footer-content {
  text-align: center;
  font-size: 0.875rem;
  max-width: 1200px;
}

/* Responsive Design for Sidebar */
@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .main-content,
  .footer {
    margin-left: 0;
  }
}

/* ----------------------------------------------------------------------------
   TYPOGRAPHY
   -------------------------------------------------------------------------- */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
}

h1 {
  font-size: 2.5rem;
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 4px solid var(--color-primary);
}

h2 {
  font-size: 2rem;
  margin-top: var(--space-6);
  padding-left: var(--space-2);
  border-left: 4px solid var(--color-primary);
}

h3 {
  font-size: 1.5rem;
  margin-top: var(--space-4);
}

h4 {
  font-size: 1.25rem;
  margin-top: var(--space-3);
}

p {
  margin-bottom: var(--space-2);
  color: var(--color-gray-700);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-gray-100);
  padding: 0.125rem 0.375rem;
  border-radius: var(--border-radius);
  border: 1px solid var(--color-gray-300);
}

pre {
  margin: var(--space-3) 0;
  overflow-x: auto;
}

pre code {
  display: block;
  background: var(--color-gray-900);
  color: #a5d6a7;
  padding: var(--space-3);
  border-radius: var(--border-radius-lg);
  border: 2px solid var(--color-gray-700);
  line-height: 1.5;
}

/* ----------------------------------------------------------------------------
   BLOCKY CARD SYSTEM
   -------------------------------------------------------------------------- */

.card {
  background: white;
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow);
}

.card-header {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 2px solid var(--color-gray-200);
}

.card-body {
  color: var(--color-gray-700);
}

.card-footer {
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 2px solid var(--color-gray-200);
}

/* Card Variants */
.card-primary {
  border-color: var(--color-primary);
  border-left-width: 6px;
}

.card-success {
  border-color: var(--color-success);
  border-left-width: 6px;
}

.card-warning {
  border-color: var(--color-warning);
  border-left-width: 6px;
}

.card-error {
  border-color: var(--color-error);
  border-left-width: 6px;
}

/* ----------------------------------------------------------------------------
   INFORMATION BOXES
   -------------------------------------------------------------------------- */

.box {
  padding: var(--space-3);
  margin: var(--space-3) 0;
  border-radius: var(--border-radius-lg);
  border: var(--border-width) solid;
  border-left-width: 6px;
}

.box-info {
  background: #eff6ff;
  border-color: var(--color-info);
  color: var(--color-gray-800);
}

.box-success {
  background: #f0fdf4;
  border-color: var(--color-success);
  color: var(--color-gray-800);
}

.box-warning {
  background: #fffbeb;
  border-color: var(--color-warning);
  color: var(--color-gray-800);
}

.box-error {
  background: #fef2f2;
  border-color: var(--color-error);
  color: var(--color-gray-800);
}

/* ----------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */

.btn {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: var(--border-width) solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: var(--font-sans);
  font-size: 1rem;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary-dark);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-secondary);
  color: white;
  border-color: var(--color-secondary-dark);
}

.btn-secondary:hover {
  background: var(--color-secondary-dark);
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: white;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: white;
  text-decoration: none;
}

/* ----------------------------------------------------------------------------
   GRID SYSTEM
   -------------------------------------------------------------------------- */

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* ----------------------------------------------------------------------------
   FEATURE CARDS
   -------------------------------------------------------------------------- */

.feature-card {
  background: white;
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4);
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin-bottom: var(--space-1);
}

.feature-description {
  color: var(--color-gray-600);
  font-size: 0.9375rem;
}

/* ----------------------------------------------------------------------------
   CODE BLOCKS
   -------------------------------------------------------------------------- */

.code-block {
  background: var(--color-gray-900);
  color: #a5d6a7;
  padding: var(--space-3);
  border-radius: var(--border-radius-lg);
  border: 2px solid var(--color-gray-700);
  margin: var(--space-3) 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
}

.code-header {
  background: var(--color-gray-800);
  color: var(--color-gray-300);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--border-radius) var(--border-radius) 0 0;
  border-bottom: 2px solid var(--color-gray-700);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  margin: var(--space-3) 0 0 0;
}

.code-header + .code-block {
  margin-top: 0;
  border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* ----------------------------------------------------------------------------
   TABLES
   -------------------------------------------------------------------------- */

.table-container {
  overflow-x: auto;
  margin: var(--space-3) 0;
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius-lg);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: white;
}

thead {
  background: var(--color-gray-100);
}

th {
  padding: var(--space-2) var(--space-3);
  text-align: left;
  font-weight: 700;
  color: var(--color-gray-900);
  border-bottom: 2px solid var(--color-gray-300);
}

td {
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-gray-200);
  color: var(--color-gray-700);
}

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

tbody tr:hover {
  background: var(--color-gray-50);
}

/* ----------------------------------------------------------------------------
   API ENDPOINT CARDS
   -------------------------------------------------------------------------- */

.endpoint-card {
  background: white;
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4);
  margin: var(--space-4) 0;
  box-shadow: var(--shadow);
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.http-method {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  font-weight: 700;
  font-size: 0.75rem;
  border-radius: var(--border-radius);
  color: white;
  min-width: 60px;
  text-align: center;
  border: 2px solid;
}

.http-method.get {
  background: var(--color-success);
  border-color: #065f46;
}

.http-method.post {
  background: var(--color-primary);
  border-color: var(--color-primary-dark);
}

.http-method.put {
  background: var(--color-warning);
  border-color: #9a3412;
}

.http-method.delete {
  background: var(--color-error);
  border-color: #991b1b;
}

.endpoint-url {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-gray-900);
  font-weight: 600;
}

.endpoint-description {
  color: var(--color-gray-600);
  margin-bottom: var(--space-2);
}

.try-it-button {
  background: var(--color-primary);
  color: white;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius);
  border: 2px solid var(--color-primary-dark);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.try-it-button:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* ----------------------------------------------------------------------------
   BADGES & TAGS
   -------------------------------------------------------------------------- */

.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--border-radius);
  border: 2px solid;
}

.badge-primary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary-dark);
}

.badge-success {
  background: var(--color-success);
  color: white;
  border-color: #065f46;
}

.badge-warning {
  background: var(--color-warning);
  color: white;
  border-color: #9a3412;
}

.badge-info {
  background: var(--color-info);
  color: white;
  border-color: #1e3a8a;
}

/* ----------------------------------------------------------------------------
   SECTION TAGS
   -------------------------------------------------------------------------- */

.tag-name {
  background: var(--color-primary);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: var(--border-radius);
  border: 2px solid var(--color-primary-dark);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
}

.use-case {
  background: #fffbeb;
  border-left: 6px solid var(--color-warning);
  border: var(--border-width) solid var(--color-warning);
  padding: var(--space-3);
  margin: var(--space-3) 0;
  border-radius: var(--border-radius-lg);
}

/* ----------------------------------------------------------------------------
   GUIDE NAVIGATION
   -------------------------------------------------------------------------- */

.guide-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  align-items: start;
}

.guide-nav {
  position: sticky;
  top: var(--space-3);
  background: white;
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius-lg);
  padding: var(--space-3);
  max-height: calc(100vh - 100px);
  overflow-y: auto;
}

.guide-nav h3 {
  font-size: 1rem;
  margin: 0 0 var(--space-2) 0;
  color: var(--color-gray-900);
}

.guide-nav ul {
  list-style: none;
}

.guide-nav li {
  margin-bottom: var(--space-1);
}

.guide-nav a {
  display: block;
  padding: var(--space-1);
  color: var(--color-gray-700);
  text-decoration: none;
  border-radius: var(--border-radius);
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.guide-nav a:hover {
  background: var(--color-gray-100);
  color: var(--color-primary);
  text-decoration: none;
}

.guide-nav a.active {
  background: var(--color-primary);
  color: white;
  font-weight: 600;
}

/* ----------------------------------------------------------------------------
   COMPONENT EXAMPLES
   -------------------------------------------------------------------------- */

.component-demo {
  background: white;
  border: var(--border-width) solid var(--color-gray-300);
  border-radius: var(--border-radius-lg);
  padding: var(--space-4);
  margin: var(--space-4) 0;
}

.component-demo-header {
  background: var(--color-gray-100);
  margin: calc(var(--space-4) * -1) calc(var(--space-4) * -1) var(--space-4);
  padding: var(--space-2) var(--space-4);
  border-bottom: 2px solid var(--color-gray-300);
  border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
  font-weight: 700;
  color: var(--color-gray-900);
}

/* ----------------------------------------------------------------------------
   HERO SECTIONS
   -------------------------------------------------------------------------- */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: white;
  padding: var(--space-8) var(--space-4);
  margin: calc(var(--space-6) * -1) 0 var(--space-6) 0;
  text-align: center;
  border-bottom: 4px solid var(--color-primary-dark);
}

.hero h1 {
  color: white;
  border: none;
  font-size: 3rem;
  margin-bottom: var(--space-2);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto var(--space-4);
}

/* ----------------------------------------------------------------------------
   RESPONSIVE DESIGN
   -------------------------------------------------------------------------- */

@media (max-width: 768px) {
  .guide-container {
    grid-template-columns: 1fr;
  }

  .guide-nav {
    position: relative;
    top: 0;
    max-height: none;
  }

  .header-content {
    flex-direction: column;
    gap: var(--space-2);
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  h1 {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* ----------------------------------------------------------------------------
   UTILITY CLASSES
   -------------------------------------------------------------------------- */

.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.mb-1 { margin-bottom: var(--space-1); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.text-center { text-align: center; }
.text-right { text-align: right; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }