/* Venka Design System - Base CSS with Custom Properties */

:root {
  /* Color Palette - Light Theme */
  /* Primary colors */
  --color-primary: #007bff;
  --color-primary-hover: #0056b3;

  /* Success/Go colors */
  --color-success: #28a745;
  --color-success-hover: #218838;
  --color-success-light: #d4edda;
  --color-success-text: #155724;

  /* Danger/Stop colors */
  --color-danger: #dc3545;
  --color-danger-hover: #c82333;
  --color-danger-light: #f8d7da;
  --color-danger-text: #721c24;

  /* Warning colors */
  --color-warning: #ffc107;
  --color-warning-light: #fff3cd;
  --color-warning-text: #856404;

  /* Neutral colors */
  --color-secondary: #6c757d;
  --color-secondary-hover: #5a6268;

  /* Background colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #f0f0f0;
  --color-bg-body: #f6f8fa;

  /* Text colors */
  --color-text-primary: #333333;
  --color-text-secondary: #666666;
  --color-text-tertiary: #555555;
  --color-text-light: #999999;
  --color-text-inverse: #ffffff;

  /* Border colors */
  --color-border-light: rgba(0, 0, 0, 0.1);
  --color-border-medium: rgba(0, 0, 0, 0.15);

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  --font-family-mono: "SF Mono", Monaco, "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;

  /* Typography scale with clamp() for responsive sizing */
  --font-size-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --font-size-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --font-size-lg: clamp(1.125rem, 1.05rem + 0.375vw, 1.25rem);
  --font-size-xl: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --font-size-2xl: clamp(1.5rem, 1.35rem + 0.75vw, 1.875rem);
  --font-size-3xl: clamp(1.875rem, 1.65rem + 1.125vw, 2.25rem);
  --font-size-4xl: clamp(2.25rem, 1.85rem + 2vw, 3rem);

  /* Line heights */
  --line-height-tight: 1.2;
  --line-height-base: 1.6;
  --line-height-relaxed: 1.8;

  /* Font weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Spacing scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 2.5rem;
  --space-3xl: 3rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    /* Custom brand colors for dark mode */
    --color-kidblue: #AED5FC;
    --color-lavender: #CBADFB;
    --color-salmon: #EF8476;

    /* Primary colors - adjusted for dark theme */
    --color-primary: #4dabff;
    --color-primary-hover: #2196f3;

    /* Success colors */
    --color-success: #4caf50;
    --color-success-hover: #45a049;
    --color-success-light: #1b5e20;
    --color-success-text: #a5d6a7;

    /* Danger colors */
    --color-danger: #f44336;
    --color-danger-hover: #da190b;
    --color-danger-light: #4a1c1c;
    --color-danger-text: #ef9a9a;

    /* Warning colors */
    --color-warning: #ff9800;
    --color-warning-light: #4a3300;
    --color-warning-text: #ffcc80;

    /* Neutral colors */
    --color-secondary: #90a4ae;
    --color-secondary-hover: #78909c;

    /* Background colors - inverted for dark mode */
    --color-bg-primary: #1e1e1e;
    --color-bg-secondary: #2d2d2d;
    --color-bg-tertiary: #3a3a3a;
    --color-bg-body: #121212;

    /* Text colors - adjusted for dark backgrounds */
    --color-text-primary: #e0e0e0;
    --color-text-secondary: #b0b0b0;
    --color-text-tertiary: #9e9e9e;
    --color-text-light: #757575;
    --color-text-inverse: #121212;

    /* Border colors */
    --color-border-light: rgba(255, 255, 255, 0.1);
    --color-border-medium: rgba(255, 255, 255, 0.2);

    /* Shadows - lighter for dark theme */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 4px 20px rgba(0, 0, 0, 0.5);
  }
}

/* Base reset and global styles */
* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-base);
  background-color: var(--color-bg-body);
  color: var(--color-text-primary);
  margin: 0;
  padding: 0;
  line-height: var(--line-height-base);
  font-size: var(--font-size-base);
}

/* Sticky Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.header-content {
  max-width: 1040px;
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 40px;
}

.app-title {
  font-size: var(--font-size-xl);
  margin: 0;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.app-title a {
  color: inherit;
  text-decoration: none;
}

.app-title a:hover {
  text-decoration: none;
}

.logout-form {
  margin: 0;
}

/* Breadcrumbs */
.breadcrumbs {
  max-width: 1040px;
  margin: 0 auto;
  padding: var(--space-sm) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border-light) transparent;
}

.breadcrumbs::-webkit-scrollbar {
  height: 4px;
}

.breadcrumbs::-webkit-scrollbar-track {
  background: transparent;
}

.breadcrumbs::-webkit-scrollbar-thumb {
  background: var(--color-border-light);
  border-radius: var(--radius-sm);
}

.breadcrumb-item {
  white-space: nowrap;
  color: var(--color-text-secondary);
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 0;
}

.breadcrumb-item a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-text-light);
  flex-shrink: 0;
}

.breadcrumb-current {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-medium);
}

/* Main content adjustment for sticky header */
.main-content {
  padding: var(--space-lg);
  min-height: calc(100vh - 60px);
}

/* Container */
.container {
  max-width: 1040px;  /* 30% wider than 800px */
  margin: 0 auto;
  background: var(--color-bg-primary);
  padding: var(--space-2xl);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  margin-top: 0;
  font-weight: var(--font-weight-semibold);
}

h1 {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-xl);
}

h2 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-sm);
}

h4, h5, h6 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-sm);
}

/* Links */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

/* Buttons */
.btn {
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: all var(--transition-base);
  line-height: var(--line-height-tight);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
}

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

.btn-secondary {
  background-color: var(--color-secondary);
  color: var(--color-text-inverse);
}

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

.btn-danger {
  background-color: var(--color-danger);
  color: var(--color-text-inverse);
}

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

/* Button sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--font-size-sm);
}

/* Sections */
.section {
  background-color: var(--color-bg-secondary);
  padding: var(--space-lg);
  border-radius: var(--radius-sm);
  margin-top: var(--space-lg);
}

/* Form elements */
input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  transition: border-color var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Utility classes */
.text-secondary {
  color: var(--color-text-secondary);
}

.text-success {
  color: var(--color-success);
}

.text-danger {
  color: var(--color-danger);
}

.text-warning {
  color: var(--color-warning);
}

.bg-light {
  background-color: var(--color-bg-secondary);
}

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

/* Status indicators */
.status-complete {
  color: var(--color-success);
  font-weight: var(--font-weight-semibold);
}

.status-progress {
  color: var(--color-warning);
  font-weight: var(--font-weight-semibold);
}

.status-failed {
  color: var(--color-danger);
  font-weight: var(--font-weight-semibold);
}

/* Text utilities */
.text-sm {
  font-size: var(--font-size-sm);
}

.text-lg {
  font-size: var(--font-size-lg);
}

.text-xl {
  font-size: var(--font-size-xl);
}

.font-medium {
  font-weight: var(--font-weight-medium);
}

.font-semibold {
  font-weight: var(--font-weight-semibold);
}

.font-bold {
  font-weight: var(--font-weight-bold);
}

/* Cards and items */
.card {
  background-color: var(--color-bg-tertiary);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.reference-item {
  background-color: var(--color-bg-tertiary);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  border-radius: var(--radius-sm);
}

/* Syntax highlighting with CSS variables for theme support */
:root {
  /* Light theme syntax colors */
  --syntax-background: #f8f8f8;
  --syntax-comment: #6a737d;
  --syntax-keyword: #d73a49;
  --syntax-string: #032f62;
  --syntax-number: #005cc5;
  --syntax-function: #6f42c1;
  --syntax-variable: #e36209;
  --syntax-constant: #005cc5;
  --syntax-class: #6f42c1;
  --syntax-decorator: #6f42c1;
  --syntax-builtin: #005cc5;
  --syntax-operator: #d73a49;
  --syntax-error: #cb2431;
  --syntax-inserted: #22863a;
  --syntax-deleted: #b31d28;
}

@media (prefers-color-scheme: dark) {
  :root {
    /* Dark theme syntax colors */
    --syntax-background: #1e1e1e;
    --syntax-comment: #8b949e;
    --syntax-keyword: #ff7b72;
    --syntax-string: #a5d6ff;
    --syntax-number: #79c0ff;
    --syntax-function: #d2a8ff;
    --syntax-variable: #ffa657;
    --syntax-constant: #79c0ff;
    --syntax-class: #d2a8ff;
    --syntax-decorator: #d2a8ff;
    --syntax-builtin: #79c0ff;
    --syntax-operator: #ff7b72;
    --syntax-error: #f85149;
    --syntax-inserted: #56d364;
    --syntax-deleted: #f85149;
  }
}

/* Apply CSS variables to Pygments classes */
.highlight {
  background: var(--syntax-background);
  color: var(--color-text-primary);
  padding: var(--space-md);
  border-radius: var(--radius-sm);
  overflow-x: auto;
}

.highlight pre {
  margin: 0;
  background: transparent;
}

/* Comments */
.highlight .c, .highlight .ch, .highlight .cm, .highlight .cpf,
.highlight .c1, .highlight .cs {
  color: var(--syntax-comment);
  font-style: italic;
}

/* Keywords */
.highlight .k, .highlight .kc, .highlight .kd, .highlight .kn,
.highlight .kp, .highlight .kr, .highlight .kt, .highlight .ow {
  color: var(--syntax-keyword);
  font-weight: 600;
}

/* Strings */
.highlight .s, .highlight .sa, .highlight .sb, .highlight .sc,
.highlight .dl, .highlight .sd, .highlight .s2, .highlight .se,
.highlight .sh, .highlight .si, .highlight .sx, .highlight .sr,
.highlight .s1, .highlight .ss {
  color: var(--syntax-string);
}

/* Numbers */
.highlight .m, .highlight .mb, .highlight .mf, .highlight .mh,
.highlight .mi, .highlight .il, .highlight .mo {
  color: var(--syntax-number);
}

/* Functions */
.highlight .nf, .highlight .fm {
  color: var(--syntax-function);
}

/* Variables */
.highlight .nv, .highlight .vc, .highlight .vg, .highlight .vi,
.highlight .vm {
  color: var(--syntax-variable);
}

/* Classes */
.highlight .nc, .highlight .nn {
  color: var(--syntax-class);
  font-weight: 600;
}

/* Decorators */
.highlight .nd {
  color: var(--syntax-decorator);
}

/* Built-ins */
.highlight .nb, .highlight .bp {
  color: var(--syntax-builtin);
}

/* Constants */
.highlight .no {
  color: var(--syntax-constant);
}

/* Operators */
.highlight .o {
  color: var(--syntax-operator);
}

/* Errors */
.highlight .err {
  color: var(--syntax-error);
  border: none;
}

/* Diff */
.highlight .gi {
  color: var(--syntax-inserted);
}

.highlight .gd {
  color: var(--syntax-deleted);
}

/* Generic */
.highlight .w { color: var(--color-text-secondary); }
.highlight .nt { color: var(--syntax-keyword); }
.highlight .na { color: var(--syntax-variable); }
.highlight .ne { color: var(--syntax-class); font-weight: 600; }

/* Additional contrast for code blocks within certain contexts */
.instruction-item .highlight,
.reference-item .highlight {
  background: var(--syntax-background);
  border: 1px solid var(--color-border-light);
}

/* Dark mode color overrides for specific elements */
@media (prefers-color-scheme: dark) {
  /* Venka title in header - Lavender */
  .app-title {
    color: var(--color-lavender);
  }

  /* Main page headings (h1) - KidBlue */
  h1 {
    color: var(--color-kidblue);
  }

  /* Section headings (h2) - Salmon */
  h2 {
    color: var(--color-salmon);
  }

  /* Breadcrumb links (except current) - KidBlue */
  .breadcrumb-item a {
    color: var(--color-kidblue);
  }
}

/* Responsive adjustments */
@media (max-width: 640px) {
  .app-header {
    position: fixed; /* Use fixed on mobile for better performance */
  }

  .header-content {
    padding: var(--space-sm) var(--space-md);
  }

  .app-title {
    font-size: var(--font-size-lg);
  }

  .breadcrumbs {
    padding: var(--space-xs) var(--space-md);
    font-size: var(--font-size-xs);
  }

  .breadcrumb-item {
    max-width: 120px;
  }

  .main-content {
    padding: var(--space-md);
  }

  .container {
    padding: var(--space-lg);
    border-radius: 0;
    box-shadow: none;
  }
}