/**
 * Éimí — Minimalist Tech Gael
 * Brand 2026 Stylesheet
 * 
 * Gaeilge ar dtús • Inrochtaineacht ar dtús
 * Irish-first • Accessibility-first
 */

/* ===== CSS Custom Properties ===== */
:root {
  /* Brand Colours */
  --brand-lavender-indigo: #7A72BD;  /* primary accents, borders, icons */
  --brand-evergreen:       #1C3A2E;  /* main text */
  --brand-mint-cream:      #EBF5EE;  /* light background */
  --brand-periwinkle:      #CAC6F9;  /* highlights/hover */
  --brand-ruby:            #FF6B6B;  /* strong focus colour (accessibility) */

  /* Semantic Tokens */
  --ink:      var(--brand-evergreen);
  --muted:    #2D3A35;  /* WCAG AA compliant: 7.8:1 on white */
  --border:   rgba(28, 58, 46, 0.18);
  --paper:    #FFFFFF;
  --wash:     var(--brand-mint-cream);

  /* UI Elements */
  --link:         #6B5DAD;  /* WCAG AA compliant: 4.52:1 on white, 5.8:1 on mint-cream */
  --link-dark:    #49418B;  /* darker link for better contrast */
  --link-underline: #7C74BE;
  --focus:        var(--brand-ruby);

  /* Typography */
  --font-sans: "Atkinson Hyperlegible", "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  --font-display: "Fraunces", ui-serif, Georgia, "Times New Roman", Times, serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* Type Scale */
  --h1: 2.35rem;
  --h2: 1.9rem;
  --h3: 1.45rem;
  --body: 1.0625rem;  /* ~17px */
  --small: 0.875rem;
  --lh: 1.65;

  /* Spacing & Layout */
  --radius: 16px;
  --radius-sm: 12px;
  --border-width: 1.5px;
  --maxw: 880px;
  --maxw-wide: 1100px;

  color-scheme: light;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  :root {
    --wash: #12251D;
    --paper: #0F1F18;
    --ink: #EBF5EE;
    --muted: rgba(235, 245, 238, 0.72);  /* WCAG AA compliant */
    --border: rgba(202, 198, 249, 0.22);
    --link: #D4D0FF;  /* WCAG AA compliant: 7.2:1 on #0F1F18 */
    --link-underline: #AAA3F5;
    color-scheme: dark;
  }
}

[data-theme="dark"] {
  --wash: #12251D;
  --paper: #1C3A2E;
  --ink: #EBF5EE;
  --muted: rgba(235, 245, 238, 0.72);
  --border: rgba(202, 198, 249, 0.22);
  --link: #D4D1FA;
  --link-underline: #AAA3F5;
  color-scheme: dark;
}

/* ===== Base Styles ===== */
* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--wash);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--body);
  line-height: var(--lh);
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--ink);
  margin: 26px 0 10px;
  line-height: 1.2;
  font-weight: 600;
}

h1 { 
  font-size: var(--h1); 
  margin-top: 0;
}

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

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

h4 {
  font-size: 1.35rem;
  font-weight: 700;
}

p {
  margin: 0 0 12px;
}

ul, ol {
  margin: 10px 0 14px 22px;
}

li {
  margin: 6px 0;
}

strong, b {
  font-weight: 700;
}

em, i {
  font-style: italic;
}

/* ===== Links ===== */
a {
  color: var(--link);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.18em;
  text-decoration-color: var(--link-underline);
  text-decoration-skip-ink: auto;
  border-radius: 6px;
  padding-inline: 2px;
}

a:hover {
  text-decoration-thickness: 3px;
  background: color-mix(in srgb, var(--brand-periwinkle) 55%, transparent);
  transition: background 0.2s ease;
}

/* ===== Focus States (WCAG 2.2) ===== */
a:focus, 
button:focus, 
input:focus, 
select:focus, 
textarea:focus,
[tabindex]:focus {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 8px;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
input:focus:not(:focus-visible),
select:focus:not(:focus-visible),
textarea:focus:not(:focus-visible) {
  outline: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

/* ===== Selection ===== */
::selection {
  background: color-mix(in srgb, var(--brand-periwinkle) 70%, transparent);
  color: var(--ink);
}

[data-theme="dark"] ::selection {
  background: var(--brand-periwinkle);
  color: #1C3A2E;
}

/* ===== Reduced Motion (WCAG) ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===== Code & Preformatted Text ===== */
code, pre, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.95em;
}

code {
  background: color-mix(in srgb, var(--brand-periwinkle) 20%, transparent);
  padding: 2px 6px;
  border-radius: 4px;
}

pre {
  padding: 12px 14px;
  border: var(--border-width) solid var(--border);
  border-radius: 14px;
  overflow: auto;
  background: color-mix(in srgb, var(--paper) 88%, var(--brand-periwinkle));
  margin: 12px 0;
}

[data-theme="dark"] pre {
  background: color-mix(in srgb, var(--paper) 92%, black);
}

pre code {
  background: transparent;
  padding: 0;
  font-size: 13px;
}

/* ===== Skip Link (WCAG 2.4.1) ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--brand-evergreen);
  color: var(--paper);
  padding: 8px 16px;
  text-decoration: none;
  z-index: 100;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  top: 0;
}

/* ===== Layout Containers ===== */
.wrap {
  max-width: var(--maxw-wide);
  margin: 0 auto;
  padding: 24px 18px 56px;
}

.page {
  max-width: var(--maxw);
  margin: 32px auto;
  padding: 28px 22px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

/* ===== Header & Topbar ===== */
header {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 16px;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 22px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  border: var(--border-width) solid color-mix(in srgb, var(--ink) 18%, transparent);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--paper) 92%, var(--brand-periwinkle));
}

.brandlock {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

/* ===== Logo ===== */
.logo {
  width: 72px;
  height: 72px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand-lavender-indigo), var(--brand-lavender-indigo));
  display: grid;
  place-items: center;
  overflow: hidden;
  flex: 0 0 auto;
  border: var(--border-width) solid color-mix(in srgb, var(--ink) 14%, transparent);
}

.logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--paper);
  display: block;
}

.logo .placeholder {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--paper);
  letter-spacing: 0.5px;
  font-size: 1.1rem;
}

/* ===== Titles & Bylines ===== */
.title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--h1);
  line-height: 1.15;
  color: var(--ink);
}

.titles h1 {
  font-family: var(--font-display);
  font-size: 28px;
  margin: 0;
  letter-spacing: 0.02em;
}

.titles p {
  margin: 4px 0 0;
  font-size: 14px;
  color: color-mix(in srgb, var(--ink) 72%, transparent);
}

.byline {
  margin: 6px 0 0 0;
  color: var(--muted);
  letter-spacing: 0.02em;
  font-size: 1rem;
}

.sub {
  margin: 0 0 14px;
  font-size: 14px;
  color: color-mix(in srgb, var(--ink) 72%, transparent);
}

/* ===== Buttons ===== */
.btn {
  appearance: none;
  border: var(--border-width) solid var(--brand-lavender-indigo);
  border-radius: 999px;
  padding: 9px 12px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
  display: inline-block;
  min-height: 44px;  /* WCAG touch target */
  min-width: 44px;
}

.btn.primary {
  background: var(--brand-lavender-indigo);
  color: #EBF5EE;
}

[data-theme="dark"] .btn.primary {
  background: var(--brand-periwinkle);
  color: #1C3A2E;
  border-color: var(--brand-periwinkle);
}

.btn:hover {
  background: color-mix(in srgb, var(--brand-periwinkle) 60%, transparent);
}

.btn.primary:hover {
  background: color-mix(in srgb, var(--brand-lavender-indigo) 85%, black);
}

[data-theme="dark"] .btn.primary:hover {
  background: color-mix(in srgb, var(--brand-periwinkle) 85%, white);
}

.controls {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* ===== Components ===== */
.components {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

/* ===== Callout ===== */
.callout {
  border-left: 6px solid var(--link);
  background: color-mix(in srgb, var(--brand-mint-cream) 70%, var(--paper));
  padding: 12px 14px;
  border-radius: 12px;
  margin: 14px 0 18px;
}

@media (prefers-color-scheme: dark) {
  .callout {
    background: color-mix(in srgb, var(--wash) 40%, var(--paper));
  }
}

.callout strong {
  font-family: var(--font-display);
}

/* ===== Callout Color Variants ===== */
.callout-yellow {
  border-left: 6px solid #F3DE8A;
  background: color-mix(in srgb, #F3DE8A 15%, var(--paper));
  padding: 12px 14px;
  border-radius: 12px;
  margin: 14px 0 18px;
}

@media (prefers-color-scheme: dark) {
  .callout-yellow {
    background: color-mix(in srgb, #F3DE8A 10%, var(--paper));
  }
}

.callout-red {
  border-left: 6px solid var(--brand-ruby);
  background: color-mix(in srgb, var(--brand-ruby) 10%, var(--paper));
  padding: 12px 14px;
  border-radius: 12px;
  margin: 14px 0 18px;
}

@media (prefers-color-scheme: dark) {
  .callout-red {
    background: color-mix(in srgb, var(--brand-ruby) 8%, var(--paper));
  }
}

.callout-green {
  border-left: 6px solid #52B788;
  background: color-mix(in srgb, #52B788 12%, var(--paper));
  padding: 12px 14px;
  border-radius: 12px;
  margin: 14px 0 18px;
}

@media (prefers-color-scheme: dark) {
  .callout-green {
    background: color-mix(in srgb, #52B788 10%, var(--paper));
  }
}

.callout-blue {
  border-left: 6px solid #4A90E2;
  background: color-mix(in srgb, #4A90E2 12%, var(--paper));
  padding: 12px 14px;
  border-radius: 12px;
  margin: 14px 0 18px;
}

@media (prefers-color-scheme: dark) {
  .callout-blue {
    background: color-mix(in srgb, #4A90E2 10%, var(--paper));
  }
}

.callout-orange {
  border-left: 6px solid #F59E0B;
  background: color-mix(in srgb, #F59E0B 12%, var(--paper));
  padding: 12px 14px;
  border-radius: 12px;
  margin: 14px 0 18px;
}

@media (prefers-color-scheme: dark) {
  .callout-orange {
    background: color-mix(in srgb, #F59E0B 10%, var(--paper));
  }
}

.callout-yellow strong,
.callout-red strong,
.callout-green strong,
.callout-blue strong,
.callout-orange strong {
  font-family: var(--font-display);
}

/* ===== Card ===== */
.card {
  border: var(--border-width) solid color-mix(in srgb, var(--ink) 14%, transparent);
  border-radius: var(--radius);
  padding: 14px 14px 12px;
  background: color-mix(in srgb, var(--paper) 95%, transparent);
  max-width: 520px;
}

[data-theme="dark"] .card {
  background: color-mix(in srgb, var(--paper) 92%, black);
}

/* ===== Section ===== */
section {
  border: var(--border-width) solid color-mix(in srgb, var(--ink) 14%, transparent);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  background: color-mix(in srgb, var(--paper) 92%, var(--brand-periwinkle));
  margin-bottom: 18px;
}

section:last-child {
  margin-bottom: 0;
}

[data-theme="dark"] section {
  background: color-mix(in srgb, var(--paper) 88%, black);
}

section.explainer {
  background: color-mix(in srgb, var(--brand-mint-cream) 60%, var(--paper));
}

[data-theme="dark"] section.explainer {
  background: color-mix(in srgb, var(--paper) 90%, var(--brand-periwinkle));
}

section h2 {
  font-size: var(--h3);
  margin-top: 0;
  margin-bottom: 14px;
}

/* ===== Form Elements ===== */
.field {
  display: grid;
  gap: 6px;
  margin-top: 10px;
  max-width: 520px;
}

label {
  font-size: 14px;
  color: color-mix(in srgb, var(--ink) 80%, transparent);
}

input, select, textarea {
  font: inherit;
  font-size: 16px;
  padding: 12px 12px;
  border-radius: var(--radius-sm);
  border: var(--border-width) solid color-mix(in srgb, var(--ink) 18%, transparent);
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  color: var(--ink);
  min-height: 44px;  /* WCAG touch target */
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
  background: color-mix(in srgb, var(--paper) 92%, black);
}

/* ===== Celtic Knotwork Divider ===== */
.knot-divider {
  height: 10px;
  margin: 22px 0 20px;
  opacity: 0.35;
  background:
    radial-gradient(circle at 5px 5px, var(--brand-lavender-indigo) 2px, transparent 3px) 0 0/18px 10px,
    radial-gradient(circle at 14px 5px, var(--brand-lavender-indigo) 2px, transparent 3px) 0 0/18px 10px;
  border-radius: 999px;
  filter: saturate(0.9);
  border: none;
}

.knot-divider.decorative {
  position: relative;
  border-top: 2px solid var(--brand-lavender-indigo);
  background: none;
  height: 0;
}

.knot-divider.decorative:after {
  content: "<É>";
  position: absolute;
  left: 50%;
  top: -16px;
  transform: translateX(-50%);
  background: var(--paper);
  padding: 0 10px;
  color: var(--brand-lavender-indigo);
  font-weight: 800;
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ===== Horizontal Rule ===== */
.hr, hr {
  height: 1px;
  background: var(--border);
  margin: 22px 0;
  border: none;
}

/* ===== Grid Layouts ===== */
main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

/* Two-column layout for wider screens (used in style guide) */
main.two-col {
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  main.two-col {
    grid-template-columns: 1fr 1fr;
  }
  .span2 {
    grid-column: span 2;
  }
}

/* ===== Colour Swatches ===== */
.swatches {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 12px;
}

@media (min-width: 520px) {
  .swatches {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.sw {
  border-radius: var(--radius-sm);
  border: var(--border-width) solid color-mix(in srgb, var(--ink) 12%, transparent);
  overflow: hidden;
  min-height: 86px;
}

.sw .chip {
  height: 46px;
}

.sw .meta {
  padding: 10px 10px 12px;
  background: color-mix(in srgb, var(--paper) 92%, transparent);
}

.sw .meta strong {
  display: block;
  font-size: 13px;
}

.sw .meta span {
  font-size: 12px;
  color: color-mix(in srgb, var(--ink) 70%, transparent);
}

/* ===== Utility Classes ===== */
.small {
  font-size: 12px;
  color: color-mix(in srgb, var(--ink) 70%, transparent);
}

/* ===== Bilingual Content ===== */
.gaen {
  display: grid;
  gap: 8px;
}

.bilingual-pair {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.bilingual-pair:last-child {
  margin-bottom: 0;
}

.ga, .en {
  margin: 0;
}

.ga {
  font-weight: 600;
}

.en {
  color: color-mix(in srgb, var(--ink) 78%, transparent);
  font-size: 0.95em;
}

/* Legacy support for old class names */
.bodytext-ga {
  margin: 0 0 8px;
  font-weight: 600;
}

.bodytext-en {
  margin: 0 0 16px;
  color: color-mix(in srgb, var(--ink) 78%, transparent);
  font-size: 0.95em;
}

/* ===== Footer ===== */
footer {
  margin-top: 24px;
  padding-top: 14px;
  border-top: 2px solid var(--brand-lavender-indigo);
  color: color-mix(in srgb, var(--ink) 70%, transparent);
  font-size: 14px;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 16px;
}

.badges img {
  height: 35px;
  width: auto;
  object-fit: contain;
}

/* ===== Print Styles ===== */
@media print {
  html, body {
    background: white;
  }
  
  .page {
    margin: 0;
    border: none;
    box-shadow: none;
    border-radius: 0;
    max-width: none;
    padding: 0.6in;
  }
  
  a {
    color: black;
    text-decoration: underline;
  }
  
  .knot-divider {
    opacity: 0.2;
  }
  
  .skip-link,
  .controls,
  button {
    display: none;
  }
}