/*
 * Vajraaditya Ventures - Main Stylesheet
 * WCAG 2.1 Level AA Compliant
 * Color Contrast Ratios: Minimum 4.5:1 for normal text, 3:1 for large text
 */

/* ==========================================
   CSS VARIABLES (CUSTOM PROPERTIES)
   ========================================== */
:root {
  /* Colors - WCAG AA Compliant */
  --color-primary: #003d82;        /* Dark Blue - Contrast ratio: 9.17:1 */
  --color-secondary: #005a9c;      /* Medium Blue - Contrast ratio: 6.73:1 */
  --color-accent: #d97706;         /* Orange - Contrast ratio: 4.63:1 */
  --color-text: #1f2937;           /* Almost Black - Contrast ratio: 14.5:1 */
  --color-text-light: #4b5563;     /* Gray - Contrast ratio: 7.5:1 */
  --color-background: #ffffff;
  --color-background-alt: #f9fafb;
  --color-border: #e5e7eb;
  --color-success: #059669;        /* Green - Contrast ratio: 4.61:1 */
  --color-error: #dc2626;          /* Red - Contrast ratio: 5.63:1 */
  --color-warning: #d97706;        /* Amber - Contrast ratio: 4.63:1 */

  /* Typography */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-family-heading: var(--font-family-base);
  --font-size-base: 16px;
  --font-size-lg: 1.125rem;    /* 18px */
  --font-size-xl: 1.25rem;     /* 20px */
  --font-size-2xl: 1.5rem;     /* 24px */
  --font-size-3xl: 1.875rem;   /* 30px */
  --font-size-4xl: 2.25rem;    /* 36px */
  --font-size-sm: 0.875rem;    /* 14px */
  --font-size-xs: 0.75rem;     /* 12px */
  --line-height-base: 1.6;
  --line-height-heading: 1.2;

  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */

  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 0.75rem;    /* 12px */

  /* Transitions */
  --transition-base: 0.2s ease-in-out;
  --transition-slow: 0.3s ease-in-out;

  /* Z-index */
  --z-skip-link: 9999;
  --z-accessibility-toolbar: 9998;
  --z-header: 1000;
  --z-nav-menu: 1001;
}

/* ==========================================
   BASE STYLES
   ========================================== */
* {
  box-sizing: border-box;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-base);
  font-size: 1rem;
  line-height: var(--line-height-base);
  color: var(--color-text);
  background-color: var(--color-background);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ==========================================
   SKIP LINK - ACCESSIBILITY
   ========================================== */
.skip-link {
  position: absolute;
  top: -999px;
  left: -999px;
  z-index: var(--z-skip-link);
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-primary);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  border-radius: var(--radius-md);
}

.skip-link:focus {
  top: var(--spacing-md);
  left: var(--spacing-md);
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================
   ACCESSIBILITY TOOLBAR
   ========================================== */
.accessibility-toolbar {
  position: fixed;
  top: 0;
  right: 0;
  z-index: var(--z-accessibility-toolbar);
  display: flex;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm);
  background-color: var(--color-primary);
  border-bottom-left-radius: var(--radius-md);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.accessibility-btn {
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  min-width: auto;
  min-height: auto;
}

.accessibility-btn:hover,
.accessibility-btn:focus {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.5);
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

.accessibility-btn:active {
  background-color: rgba(255, 255, 255, 0.3);
}

/* Mobile accessibility toolbar - icon-only compact version */
@media (max-width: 768px) {
  .accessibility-toolbar {
    flex-wrap: nowrap;
    padding: 3px;
    gap: 3px;
    top: 2px;
    right: 2px;
    border-bottom-left-radius: 4px;
  }

  .accessibility-btn {
    padding: 0;
    font-size: 0;
    min-width: auto;
    min-height: auto;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .accessibility-btn span[aria-hidden="true"] {
    font-size: 16px;
    display: block;
  }

  /* Show only icon symbols, hide text */
  #contrast-toggle span:after {
    content: '';
  }

  #font-reset {
    font-size: 12px;
  }
}

/* ==========================================
   TYPOGRAPHY
   ========================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-heading);
  line-height: var(--line-height-heading);
  font-weight: 700;
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  color: var(--color-primary);
}

h1 {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--spacing-lg);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: 1rem;
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-secondary);
  text-decoration: underline;
  transition: var(--transition-base);
}

a:hover {
  color: var(--color-primary);
  text-decoration: none;
}

a:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong, b {
  font-weight: 700;
}

ul, ol {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-xl);
}

li {
  margin-bottom: var(--spacing-sm);
}

/* ==========================================
   LAYOUT
   ========================================== */
.container {
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--spacing-md);
  padding-right: var(--spacing-md);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--spacing-xl);
    padding-right: var(--spacing-xl);
  }
}

/* ==========================================
   HEADER & NAVIGATION
   ========================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-background);
  border-bottom: 1px solid var(--color-border);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.main-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-md);
  padding-bottom: var(--spacing-md);
}

.nav-brand {
  flex-shrink: 0;
}

.logo {
  display: block;
  max-width: 100%;
  height: auto;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--spacing-sm);
  background: none;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.hamburger {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-primary);
  transition: var(--transition-base);
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  color: var(--color-text);
  text-decoration: none;
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: var(--transition-base);
}

.nav-menu a:hover,
.nav-menu a:focus {
  color: var(--color-primary);
  background-color: var(--color-background-alt);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .site-header {
    padding-top: 4px;
  }

  .main-nav .container {
    padding-top: 4px;
    padding-bottom: 4px;
  }

  .nav-brand {
    max-width: 140px;
    flex-shrink: 1;
  }

  .logo {
    max-width: 100%;
    height: auto;
    width: auto;
    max-height: 50px;
  }

  .logo-link {
    font-size: 14px;
    max-width: 140px;
    display: block;
  }

  .nav-toggle {
    display: flex;
    flex-shrink: 0;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-md);
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    z-index: var(--z-nav-menu);
  }

  .nav-menu.active {
    max-height: 500px;
  }

  .nav-menu li {
    border-bottom: 1px solid var(--color-border);
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-menu a {
    display: block;
    padding: var(--spacing-md);
  }
}

/* ==========================================
   HERO SECTION
   ========================================== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: #ffffff;
  padding: var(--spacing-3xl) 0;
  text-align: center;
}

.hero-title {
  font-size: var(--font-size-4xl);
  color: #ffffff;
  margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

@media (max-width: 768px) {
  .hero {
    padding: var(--spacing-2xl) 0;
  }

  .hero-title {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: 1rem;
  }
}

/* ==========================================
   SECTIONS
   ========================================== */
.section {
  padding: var(--spacing-3xl) 0;
}

.section:nth-child(even) {
  background-color: var(--color-background-alt);
}

.section-intro {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  text-align: center;
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

/* ==========================================
   CARDS
   ========================================== */
.info-card,
.culture-item {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: var(--transition-base);
}

.info-card:hover,
.info-card:focus-within,
.culture-item:hover,
.culture-item:focus-within {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

/* ==========================================
   TABLES
   ========================================== */
.info-table-wrapper {
  overflow-x: auto;
  margin: var(--spacing-xl) 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.info-table caption {
  padding: var(--spacing-md);
  font-weight: 700;
  text-align: left;
  background-color: var(--color-background-alt);
  border-bottom: 2px solid var(--color-border);
}

.info-table th,
.info-table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.info-table th {
  background-color: var(--color-primary);
  color: #ffffff;
  font-weight: 700;
}

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

.info-table tbody tr:hover {
  background-color: var(--color-background-alt);
}

/* Mobile table view */
@media (max-width: 768px) {
  .info-table thead {
    display: none;
  }

  .info-table tr {
    display: block;
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
  }

  .info-table td {
    display: block;
    text-align: right;
    padding: var(--spacing-sm) var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
  }

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

  .info-table td::before {
    content: attr(data-label);
    float: left;
    font-weight: 700;
    color: var(--color-primary);
  }
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-xl);
}

.contact-info address {
  font-style: normal;
  line-height: 1.8;
  margin-bottom: var(--spacing-lg);
}

.map-container {
  min-height: 400px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

/* ==========================================
   RISK SECTION
   ========================================== */
.risk-section {
  background-color: #fef3c7;
  border-top: 4px solid var(--color-warning);
  border-bottom: 4px solid var(--color-warning);
}

.risk-list {
  background-color: var(--color-background);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-error);
}

.risk-list li {
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  color: var(--color-error);
}

/* ==========================================
   FOOTER
   ========================================== */
.site-footer {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  color: #ffffff;
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: var(--transition-base);
}

.footer-links a:hover,
.footer-links a:focus {
  color: #ffffff;
  text-decoration: underline;
}

.site-footer a {
  color: rgba(255, 255, 255, 0.9);
}

.site-footer a:hover,
.site-footer a:focus {
  color: #ffffff;
}

.footer-notices {
  background-color: rgba(0, 0, 0, 0.2);
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-xl);
}

.footer-notices ul {
  list-style-position: inside;
  padding-left: 0;
}

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  text-align: center;
  font-size: var(--font-size-sm);
}

/* ==========================================
   CAREER SECTION
   ========================================== */
.job-details {
  background-color: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-top: var(--spacing-lg);
}

.job-details h4 {
  color: var(--color-primary);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.job-details ul {
  margin-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.job-details ul li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.7;
}

.job-details ul ul {
  margin-top: var(--spacing-sm);
}

/* ==========================================
   UTILITIES
   ========================================== */
.notice {
  padding: var(--spacing-md);
  background-color: #fef3c7;
  border-left: 4px solid var(--color-warning);
  border-radius: var(--radius-sm);
  margin: var(--spacing-lg) 0;
}

/* ==========================================
   FOCUS STYLES (ACCESSIBILITY)
   ========================================== */
:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

button:focus,
a:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================
   PRINT STYLES
   ========================================== */
@media print {
  .accessibility-toolbar,
  .nav-toggle,
  .skip-link {
    display: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
    background: #fff;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  h1, h2, h3, h4, h5, h6 {
    page-break-after: avoid;
  }
}