/* ==========================================================================
   Australian Qualifications Framework - Grid Stylesheet
   
   Based on GEMT pattern - adapted for 10 AQF levels
   Colours from AQF official wheel
   ========================================================================== */

:root {
  /* AQF Level Colours - Updated from user specification */
  --level-1: #f3787b;   /* Certificate I - Salmon Pink */
  --level-2: #a26f5a;   /* Certificate II - Brown */
  --level-3: #f6871e;   /* Certificate III - Orange */
  --level-4: #64ba48;   /* Certificate IV - Green */
  --level-5: #f8db35;   /* Diploma - Yellow */
  --level-6: #bb9d54;   /* Advanced Diploma/Associate - Tan/Gold */
  --level-7: #2cb2b0;   /* Bachelor - Teal */
  --level-8: #c88400;   /* Bach Honours/Grad Cert/Grad Dip - Dark Orange/Gold */
  --level-9: #ed6541;   /* Masters - Orange-Red */
  --level-10: #8f8066;  /* Doctoral - Grey-Brown */
  
  /* Sector colours */
  --vet-header: #ff6b35;
  --vet-he-header: #9c27b0;
  --he-header: #1976d2;
  
  /* Neutral colours */
  --white: #ffffff;
  --off-white: #f8f9fa;
  --light-grey: #e9ecef;
  --medium-grey: #6c757d;
  --dark-grey: #343a40;
  --black: #212529;
  
  /* Text colours */
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --text-light: #ffffff;
  --text-dark: #333333;
  
  /* Grid precision */
  --grid-gap: 2px;
  --cell-height: 70px;
  --header-height: 48px;
  --level-height: 80px;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* Dark theme */
[data-theme="dark"] {
  --white: #1a1a2e;
  --off-white: #16213e;
  --light-grey: #0f3460;
  --text-primary: #e9ecef;
  --text-secondary: #adb5bd;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--white);
}

a {
  color: inherit;
  text-decoration: none;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--white);
  border-bottom: 1px solid var(--light-grey);
  padding: 1rem 1.5rem;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1600px;
  margin: 0 auto;
}

.logo-text {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.main-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.main-nav a:hover {
  color: var(--text-primary);
}

.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  color: var(--text-secondary);
}

.theme-toggle:hover {
  background-color: var(--light-grey);
}

.theme-toggle .sun-icon { display: none; }
.theme-toggle .moon-icon { display: block; }
[data-theme="dark"] .theme-toggle .sun-icon { display: block; }
[data-theme="dark"] .theme-toggle .moon-icon { display: none; }

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  padding: 3rem 1.5rem;
  max-width: 1600px;
  margin: 0 auto;
}

.hero-content h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, 
    #c1175d 0%, 
    #f39233 20%, 
    #00b8d4 40%, 
    #c3d82e 60%, 
    #1e88e5 80%, 
    #43a047 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-content h1 .title-framework {
  display: block;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
}

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-primary {
  background-color: var(--vet-header);
  color: var(--text-light);
}

.btn-primary:hover {
  background-color: #e85a25;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border-color: var(--light-grey);
}

.btn-secondary:hover {
  background-color: var(--off-white);
  border-color: var(--medium-grey);
}

/* ==========================================================================
   FRAMEWORK GRID - 10 COLUMN PRECISION ALIGNMENT
   ========================================================================== */

.framework-grid-section {
  padding: 1.5rem;
  background-color: var(--off-white);
}

.framework-container {
  max-width: 1600px;
  margin: 0 auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Single unified grid for entire framework - 10 columns */
.framework-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: var(--grid-gap);
  min-width: 1400px;
}

/* ==========================================================================
   Dimension Headers - Variable column spans
   ========================================================================== */

.dimension-header {
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--header-height);
  padding: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-light);
  text-align: center;
}

/* VET spans 4 columns (levels 1-4) */
.dimension-header.vet {
  grid-column: span 4;
  background-color: var(--vet-header);
}

/* VET & HE spans 4 columns (levels 5-8) */
.dimension-header.vet-he {
  grid-column: span 4;
  background-color: var(--vet-he-header);
}

/* HE spans 2 columns (levels 9-10) */
.dimension-header.he {
  grid-column: span 2;
  background-color: var(--he-header);
}

/* ==========================================================================
   Level Cells - Large with just the number
   ========================================================================== */

.level-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--level-height);
  padding: 8px;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-light);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  border-radius: 4px;
}

.level-cell:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  z-index: 10;
}

/* Level-specific colors with WCAG compliant text */
.level-cell.col-1 { background-color: var(--level-1); }
.level-cell.col-2 { background-color: var(--level-2); }
.level-cell.col-3 { background-color: var(--level-3); }
.level-cell.col-4 { background-color: var(--level-4); }
.level-cell.col-5 { background-color: var(--level-5); color: var(--text-dark); }
.level-cell.col-6 { background-color: var(--level-6); }
.level-cell.col-7 { background-color: var(--level-7); }
.level-cell.col-8 { background-color: var(--level-8); }
.level-cell.col-9 { background-color: var(--level-9); }
.level-cell.col-10 { background-color: var(--level-10); }

/* ==========================================================================
   Qualification Type Cells - White background with colored text
   ========================================================================== */

.qual-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: var(--cell-height);
  padding: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.3;
  background-color: var(--white);
  cursor: pointer;
  transition: all var(--transition-normal);
  border-radius: 4px;
  border: 2px solid var(--light-grey);
}

.qual-cell:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  z-index: 10;
  font-weight: 700;
  border-width: 3px;
}

.qual-cell .cap-name {
  font-size: 0.75rem;
  line-height: 1.3;
}

/* Qualification cell text colors by column */
.qual-cell.col-1 { color: var(--level-1); border-color: var(--level-1); }
.qual-cell.col-2 { color: var(--level-2); border-color: var(--level-2); }
.qual-cell.col-3 { color: var(--level-3); border-color: var(--level-3); }
.qual-cell.col-4 { color: var(--level-4); border-color: var(--level-4); }
.qual-cell.col-5 { color: var(--level-5); border-color: var(--level-5); }
.qual-cell.col-6 { color: var(--level-6); border-color: var(--level-6); }
.qual-cell.col-7 { color: var(--level-7); border-color: var(--level-7); }
.qual-cell.col-8 { color: var(--level-8); border-color: var(--level-8); }
.qual-cell.col-9 { color: var(--level-9); border-color: var(--level-9); }
.qual-cell.col-10 { color: var(--level-10); border-color: var(--level-10); }

/* ==========================================================================
   Data Cells - Solid colored background with white text and reference codes
   ========================================================================== */

.data-cell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: var(--cell-height);
  padding: 8px 8px 8px 8px;
  font-size: 0.7rem;
  font-weight: 500;
  line-height: 1.3;
  color: var(--text-light);
  cursor: pointer;
  transition: all var(--transition-normal);
  border-radius: 4px;
}

.data-cell:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  z-index: 10;
  font-weight: 600;
}

/* Reference code in top right corner */
.data-cell .ref-code {
  position: absolute;
  top: 3px;
  right: 4px;
  font-size: 0.65rem;
  font-weight: 700;
  opacity: 0.9;
}

.data-cell .cap-name {
  font-size: 0.7rem;
  line-height: 1.3;
  padding-right: 18px; /* Space for ref code */
}

/* Data cell background colors by column - solid colors */
.data-cell.col-1 { background-color: var(--level-1); }
.data-cell.col-2 { background-color: var(--level-2); }
.data-cell.col-3 { background-color: var(--level-3); }
.data-cell.col-4 { background-color: var(--level-4); }
.data-cell.col-5 { background-color: var(--level-5); color: var(--text-dark); }
.data-cell.col-6 { background-color: var(--level-6); }
.data-cell.col-7 { background-color: var(--level-7); }
.data-cell.col-8 { background-color: var(--level-8); }
.data-cell.col-9 { background-color: var(--level-9); }
.data-cell.col-10 { background-color: var(--level-10); }

/* ==========================================================================
   Purpose Section
   ========================================================================== */

.purpose-section {
  padding: 3rem 1.5rem;
  background-color: var(--white);
}

.purpose-section .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.purpose-section h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.purpose-section h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.purpose-section ul {
  margin: 1rem 0 1.5rem 1.5rem;
  color: var(--text-secondary);
}

.purpose-section li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.purpose-block h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
  margin-top: 0;
}

.purpose-block p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0.5rem;
}

.purpose-block strong {
  font-weight: 600;
  color: var(--text-primary);
}

/* ==========================================================================
   Legislation Boxes - Clickable hover boxes
   ========================================================================== */

.legislation-section {
  padding: 2rem 1.5rem;
  background-color: var(--off-white);
}

.legislation-section h2 {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--text-primary);
}

.legislation-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.legislation-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  background-color: var(--white);
  border: 2px solid var(--light-grey);
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition-normal);
  cursor: pointer;
  min-height: 120px;
}

.legislation-box:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  border-color: var(--vet-header);
}

.legislation-box h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  text-align: center;
}

.legislation-box p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  line-height: 1.4;
}

/* ==========================================================================
   Attribution Section
   ========================================================================== */

.attribution-section {
  padding: 2rem 1.5rem;
  background-color: var(--off-white);
  border-top: 1px solid var(--light-grey);
}

.attribution-box {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.attribution-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: 2rem 1.5rem;
  background-color: var(--dark-grey);
  text-align: center;
}

.footer-company {
  font-size: 1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.footer-license {
  font-size: 0.75rem;
  color: var(--medium-grey);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1600px) {
  .framework-container {
    overflow-x: scroll;
  }
}

@media (max-width: 768px) {
  .hero { padding: 2rem 1rem; }
  .purpose-section .container { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Print
   ========================================================================== */

@media print {
  .site-header, .site-footer, .theme-toggle { display: none; }
  .level-cell, .data-cell, .dimension-header {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

a:focus, button:focus {
  outline: 2px solid var(--level-7);
  outline-offset: 2px;
}