/* ==========================================================================
   Global Education Market Taxonomy - Complete Stylesheet
   
   Colours extracted from globallearninglandscape.org
   20 columns: A-C (ECE), D-H (K12), I-O (PSE), P-T (WTD)
   
   Attribution: Framework by HolonIQ | Licensed under CC BY-SA 4.0
   ========================================================================== */

/* ==========================================================================
   CSS Variables - Colour Palette
   ========================================================================== */

:root {
  /* Early Childhood Education (ECE) - Orange spectrum - 3 columns */
  --ece-header: #e97625;
  --ece-col-a: #e97625;
  --ece-col-b: #ec9a26;
  --ece-col-c: #f1ba2b;
  
  /* K-12 Education - Green spectrum - 5 columns */
  --k12-header: #41b636;
  --k12-col-d: #aed32b;
  --k12-col-e: #41b636;
  --k12-col-f: #169d40;
  --k12-col-g: #17a080;
  --k12-col-h: #1aa5b7;
  
  /* Post-Secondary Education (PSE) - Blue spectrum - 7 columns */
  --pse-header: #1794d6;
  --pse-col-i: #1ca8e8;
  --pse-col-j: #1794d6;
  --pse-col-k: #137fc3;
  --pse-col-l: #0f69b0;
  --pse-col-m: #2a4f96;
  --pse-col-n: #35358a;
  --pse-col-o: #3c0f78;
  
  /* Workforce Training & Development (WTD) - Pink/Magenta spectrum - 5 columns */
  --wtd-header: #e2137c;
  --wtd-col-p: #750d79;
  --wtd-col-q: #ac107a;
  --wtd-col-r: #e2137c;
  --wtd-col-s: #df0f62;
  --wtd-col-t: #df0c46;
  
  /* 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;
  --domain-height: 56px;
  
  /* 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, #e97625 0%, #41b636 33%, #1794d6 66%, #e2137c 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;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.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;
  transition: all var(--transition-fast);
}

.btn-primary {
  background-color: #e97625;
  color: var(--text-light);
}

.btn-primary:hover {
  background-color: #d06820;
}

.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 - 20 COLUMN PRECISION ALIGNMENT
   ========================================================================== */

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

.framework-container {
  max-width: 1800px;
  margin: 0 auto;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Single unified grid for entire framework - 20 columns */
.framework-grid {
  display: grid;
  grid-template-columns: repeat(20, 1fr);
  gap: var(--grid-gap);
  min-width: 1600px;
}

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

.dimension-header {
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--header-height);
  padding: 8px;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-light);
  text-align: center;
}

/* ECE spans 3 columns */
.dimension-header.ece {
  grid-column: span 3;
  background-color: var(--ece-header);
}

/* K12 spans 5 columns */
.dimension-header.k12 {
  grid-column: span 5;
  background-color: var(--k12-header);
}

/* PSE spans 7 columns */
.dimension-header.pse {
  grid-column: span 7;
  background-color: var(--pse-header);
}

/* WTD spans 5 columns */
.dimension-header.wtd {
  grid-column: span 5;
  background-color: var(--wtd-header);
}

/* ==========================================================================
   Domain Cells - White with coloured border/text
   ========================================================================== */

.domain-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: var(--domain-height);
  padding: 4px 2px;
  font-size: 0.65rem;
  font-weight: 600;
  line-height: 1.2;
  background-color: var(--white);
  border: 2px solid;
  transition: all var(--transition-normal);
}

.domain-cell:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
  z-index: 10;
}

/* Domain colours by position (1-20) */
.framework-grid > .domain-cell:nth-of-type(1) { color: var(--ece-col-a); border-color: var(--ece-col-a); }
.framework-grid > .domain-cell:nth-of-type(2) { color: var(--ece-col-b); border-color: var(--ece-col-b); }
.framework-grid > .domain-cell:nth-of-type(3) { color: var(--ece-col-c); border-color: var(--ece-col-c); }
.framework-grid > .domain-cell:nth-of-type(4) { color: var(--k12-col-d); border-color: var(--k12-col-d); }
.framework-grid > .domain-cell:nth-of-type(5) { color: var(--k12-col-e); border-color: var(--k12-col-e); }
.framework-grid > .domain-cell:nth-of-type(6) { color: var(--k12-col-f); border-color: var(--k12-col-f); }
.framework-grid > .domain-cell:nth-of-type(7) { color: var(--k12-col-g); border-color: var(--k12-col-g); }
.framework-grid > .domain-cell:nth-of-type(8) { color: var(--k12-col-h); border-color: var(--k12-col-h); }
.framework-grid > .domain-cell:nth-of-type(9) { color: var(--pse-col-i); border-color: var(--pse-col-i); }
.framework-grid > .domain-cell:nth-of-type(10) { color: var(--pse-col-j); border-color: var(--pse-col-j); }
.framework-grid > .domain-cell:nth-of-type(11) { color: var(--pse-col-k); border-color: var(--pse-col-k); }
.framework-grid > .domain-cell:nth-of-type(12) { color: var(--pse-col-l); border-color: var(--pse-col-l); }
.framework-grid > .domain-cell:nth-of-type(13) { color: var(--pse-col-m); border-color: var(--pse-col-m); }
.framework-grid > .domain-cell:nth-of-type(14) { color: var(--pse-col-n); border-color: var(--pse-col-n); }
.framework-grid > .domain-cell:nth-of-type(15) { color: var(--pse-col-o); border-color: var(--pse-col-o); }
.framework-grid > .domain-cell:nth-of-type(16) { color: var(--wtd-col-p); border-color: var(--wtd-col-p); }
.framework-grid > .domain-cell:nth-of-type(17) { color: var(--wtd-col-q); border-color: var(--wtd-col-q); }
.framework-grid > .domain-cell:nth-of-type(18) { color: var(--wtd-col-r); border-color: var(--wtd-col-r); }
.framework-grid > .domain-cell:nth-of-type(19) { color: var(--wtd-col-s); border-color: var(--wtd-col-s); }
.framework-grid > .domain-cell:nth-of-type(20) { color: var(--wtd-col-t); border-color: var(--wtd-col-t); }

/* ==========================================================================
   Capability Cells - Solid coloured backgrounds
   ========================================================================== */

.capability-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  height: var(--cell-height);
  padding: 5px;
  font-size: 0.6rem;
  font-weight: 500;
  line-height: 1.2;
  color: var(--text-light);
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
}

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

/* Reference code - TOP RIGHT */
.capability-cell .ref-code {
  position: absolute;
  top: 3px;
  right: 3px;
  font-size: 0.65rem;
  font-weight: 700;
  opacity: 0.9;
}

/* Capability name - BOTTOM LEFT */
.capability-cell .cap-name {
  font-size: 0.65rem;
  font-weight: 500;
  line-height: 1.15;
  text-align: left;
}

/* Empty cells - completely invisible */
.capability-cell.empty {
  background-color: transparent !important;
  pointer-events: none;
  border: none;
}

/* ==========================================================================
   Capability Cell Colours - Explicit column classes
   ========================================================================== */

/* ECE Columns A-C (Orange) */
.capability-cell.col-a { background-color: var(--ece-col-a); }
.capability-cell.col-b { background-color: var(--ece-col-b); }
.capability-cell.col-c { background-color: var(--ece-col-c); color: var(--text-dark); }

/* K12 Columns D-H (Green) */
.capability-cell.col-d { background-color: var(--k12-col-d); color: var(--text-dark); }
.capability-cell.col-e { background-color: var(--k12-col-e); }
.capability-cell.col-f { background-color: var(--k12-col-f); }
.capability-cell.col-g { background-color: var(--k12-col-g); }
.capability-cell.col-h { background-color: var(--k12-col-h); }

/* PSE Columns I-O (Blue) */
.capability-cell.col-i { background-color: var(--pse-col-i); }
.capability-cell.col-j { background-color: var(--pse-col-j); }
.capability-cell.col-k { background-color: var(--pse-col-k); }
.capability-cell.col-l { background-color: var(--pse-col-l); }
.capability-cell.col-m { background-color: var(--pse-col-m); }
.capability-cell.col-n { background-color: var(--pse-col-n); }
.capability-cell.col-o { background-color: var(--pse-col-o); }

/* WTD Columns P-T (Pink/Magenta) */
.capability-cell.col-p { background-color: var(--wtd-col-p); }
.capability-cell.col-q { background-color: var(--wtd-col-q); }
.capability-cell.col-r { background-color: var(--wtd-col-r); }
.capability-cell.col-s { background-color: var(--wtd-col-s); }
.capability-cell.col-t { background-color: var(--wtd-col-t); }

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

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

.purpose-section .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

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

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

/* ==========================================================================
   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;
  margin-bottom: 0.5rem;
}

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

.attribution-changes {
  font-size: 0.75rem;
  color: var(--medium-grey);
  font-style: italic;
}

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

.site-footer {
  padding: 2rem 1.5rem;
  background-color: #181c40;
  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);
}

.footer-license a {
  color: var(--light-grey);
  text-decoration: underline;
}

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

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

@media (max-width: 768px) {
  .hero { padding: 2rem 1rem; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .purpose-section .container { grid-template-columns: 1fr; }
}

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

@media print {
  .site-header, .site-footer, .hero-actions, .theme-toggle { display: none; }
  .capability-cell, .domain-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 #e97625;
  outline-offset: 2px;
}

/* ==========================================================================
   Domain Page Styles
   ========================================================================== */

.domain-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.domain-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 3px solid var(--light-grey);
}

.domain-header h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.domain-header .sector-badge {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-light);
  border-radius: 4px;
  margin-bottom: 1rem;
}

.sector-badge.ece { background-color: var(--ece-header); }
.sector-badge.k12 { background-color: var(--k12-header); }
.sector-badge.pse { background-color: var(--pse-header); }
.sector-badge.wtd { background-color: var(--wtd-header); }

.domain-intro {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: 1rem;
}

.capabilities-section {
  margin-top: 2.5rem;
}

.capabilities-section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 2rem;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.capability-card {
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
  margin-bottom: 1rem;
  background-color: var(--off-white);
  border-radius: 8px;
  border-left: 4px solid;
  transition: all var(--transition-normal);
}

.capability-card:hover {
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.capability-code {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-light);
  border-radius: 8px;
}

.capability-content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.capability-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Capability card colours by column */
.capability-card.col-a { border-left-color: var(--ece-col-a); }
.capability-card.col-a .capability-code { background-color: var(--ece-col-a); }
.capability-card.col-b { border-left-color: var(--ece-col-b); }
.capability-card.col-b .capability-code { background-color: var(--ece-col-b); }
.capability-card.col-c { border-left-color: var(--ece-col-c); }
.capability-card.col-c .capability-code { background-color: var(--ece-col-c); color: var(--text-dark); }

.capability-card.col-d { border-left-color: var(--k12-col-d); }
.capability-card.col-d .capability-code { background-color: var(--k12-col-d); color: var(--text-dark); }
.capability-card.col-e { border-left-color: var(--k12-col-e); }
.capability-card.col-e .capability-code { background-color: var(--k12-col-e); }
.capability-card.col-f { border-left-color: var(--k12-col-f); }
.capability-card.col-f .capability-code { background-color: var(--k12-col-f); }
.capability-card.col-g { border-left-color: var(--k12-col-g); }
.capability-card.col-g .capability-code { background-color: var(--k12-col-g); }
.capability-card.col-h { border-left-color: var(--k12-col-h); }
.capability-card.col-h .capability-code { background-color: var(--k12-col-h); }

.capability-card.col-i { border-left-color: var(--pse-col-i); }
.capability-card.col-i .capability-code { background-color: var(--pse-col-i); }
.capability-card.col-j { border-left-color: var(--pse-col-j); }
.capability-card.col-j .capability-code { background-color: var(--pse-col-j); }
.capability-card.col-k { border-left-color: var(--pse-col-k); }
.capability-card.col-k .capability-code { background-color: var(--pse-col-k); }
.capability-card.col-l { border-left-color: var(--pse-col-l); }
.capability-card.col-l .capability-code { background-color: var(--pse-col-l); }
.capability-card.col-m { border-left-color: var(--pse-col-m); }
.capability-card.col-m .capability-code { background-color: var(--pse-col-m); }
.capability-card.col-n { border-left-color: var(--pse-col-n); }
.capability-card.col-n .capability-code { background-color: var(--pse-col-n); }
.capability-card.col-o { border-left-color: var(--pse-col-o); }
.capability-card.col-o .capability-code { background-color: var(--pse-col-o); }

.capability-card.col-p { border-left-color: var(--wtd-col-p); }
.capability-card.col-p .capability-code { background-color: var(--wtd-col-p); }
.capability-card.col-q { border-left-color: var(--wtd-col-q); }
.capability-card.col-q .capability-code { background-color: var(--wtd-col-q); }
.capability-card.col-r { border-left-color: var(--wtd-col-r); }
.capability-card.col-r .capability-code { background-color: var(--wtd-col-r); }
.capability-card.col-s { border-left-color: var(--wtd-col-s); }
.capability-card.col-s .capability-code { background-color: var(--wtd-col-s); }
.capability-card.col-t { border-left-color: var(--wtd-col-t); }
.capability-card.col-t .capability-code { background-color: var(--wtd-col-t); }

/* Navigation Pager */
.page-navigation {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--light-grey);
}

.page-nav-link {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem;
  border-radius: 8px;
  background-color: var(--off-white);
  text-decoration: none;
  transition: all var(--transition-fast);
  max-width: 45%;
}

.page-nav-link:hover {
  background-color: var(--light-grey);
}

.page-nav-link.next {
  text-align: right;
  margin-left: auto;
}

.page-nav-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.page-nav-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* About Page */
.about-page {
  max-width: 900px;
  margin: 0 auto;
  padding: 3rem 1.5rem 4rem;
}

.about-page h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, #e97625 0%, #41b636 33%, #1794d6 66%, #e2137c 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-page h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.about-page p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 1rem;
}

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

.about-page li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

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

.sector-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem;
  background-color: var(--off-white);
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.sector-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sector-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sector-item span {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb span {
  color: var(--text-secondary);
}