/* ==========================================================================
   iHuB GLOBAL FOUNDATION — PHASE 1
   One reset, one colour system, one responsive navigation foundation.
   ========================================================================== */

:root {
  --colour-primary: #0A192F;
  --colour-primary-light: #112240;
  --colour-primary-lighter: #233554;
  --colour-secondary: #FFFFFF;

  --colour-accent: #D4AF37;
  --colour-accent-hover: #B8973E;
  --colour-accent-dark: #8A6A13;

  --colour-text: #1A1A1A;
  --colour-text-secondary: #4A5568;
  --colour-text-muted: #718096;
  --colour-text-inverse: #FFFFFF;

  --colour-background: #FFFFFF;
  --colour-background-alt: #F8FAFC;
  --colour-background-dark: #071522;

  --colour-border: #E2E8F0;
  --colour-border-dark: #233554;

  --font-serif: "Playfair Display", Georgia, "Times New Roman", Times, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container-max: 1280px;
  --container-padding: 1.25rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;

  --shadow-sm: 0 1px 2px rgba(10, 25, 47, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 25, 47, 0.10);
  --shadow-lg: 0 18px 45px rgba(10, 25, 47, 0.14);
  --shadow-xl: 0 24px 60px rgba(10, 25, 47, 0.18);

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;
  --text-4xl: 3rem;
  --text-5xl: 4rem;

  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.8;

  --tracking-tight: -0.02em;
  --tracking-normal: 0;
  --tracking-wide: 0.05em;
  --tracking-wider: 0.1em;

  --space-0: 0;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-11: 6rem;
  --space-12: 8rem;

  --z-header: 1000;
  --z-dropdown: 1100;
  --z-mobile-nav: 1200;
  --z-overlay: 1150;
  --z-skip: 9999;
}

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

html {
  width: 100%;
  max-width: 100%;
  min-height: 100%;
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

body {
  width: 100%;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  line-height: 1.6;
  color: var(--colour-text);
  background: var(--colour-background);
  overflow-x: hidden;
}

body.nav-is-open {
  overflow: hidden;
}

main {
  flex: 1 0 auto;
  min-width: 0;
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  cursor: pointer;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--colour-primary);
  text-decoration: none;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--colour-accent-dark);
}

::selection {
  background: rgba(212, 175, 55, 0.25);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

/* Compatibility utilities used by existing course pages. */
.section-padding {
  padding-block: 4rem;
}

.bg-slate,
.bg-dark {
  background-color: var(--colour-primary);
}

.bg-light,
.bg-alt {
  background-color: var(--colour-background-alt);
}

.color-white,
.text-inverse {
  color: var(--colour-text-inverse);
}

.img-responsive {
  width: 100%;
  height: auto;
}

.lead {
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--colour-text-secondary);
  max-width: 720px;
}

/* ==========================================================================
   GLOBAL HEADER & PRIMARY NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  width: 100%;
  background: var(--colour-primary);
  color: var(--colour-text-inverse);
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
  box-shadow: 0 4px 18px rgba(7, 21, 34, 0.18);
}

.site-header.is-scrolled {
  background: rgba(7, 21, 34, 0.98);
  box-shadow: 0 8px 24px rgba(7, 21, 34, 0.22);
}

.header-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.site-logo {
  width: auto;
  height: 36px;
  max-width: 150px;
  object-fit: contain;
}

.logo-link {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
}

.logo-link:focus-visible {
  outline: 2px solid var(--colour-accent);
  outline-offset: 5px;
  border-radius: var(--radius-sm);
}

.site-nav {
  margin-left: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.15rem;
}

.nav-item {
  position: relative;
}

.nav-link-group {
  display: flex;
  align-items: stretch;
}

.nav-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0.65rem 0.75rem;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: rgba(255, 255, 255, 0.90);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.is-active,
.nav-item.dropdown.is-open > .nav-link-group .nav-link {
  color: var(--colour-accent);
}

.nav-link.is-active,
.nav-item.dropdown.is-active > .nav-link-group .nav-link {
  border-bottom-color: var(--colour-accent);
}

.dropdown-toggle-button {
  width: 34px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: rgba(255, 255, 255, 0.78);
  transition: color var(--transition-fast), border-color var(--transition-fast), background-color var(--transition-fast);
}

.dropdown-toggle-button:hover,
.dropdown-toggle-button:focus-visible,
.nav-item.dropdown.is-open > .nav-link-group .dropdown-toggle-button {
  color: var(--colour-accent);
}

.dropdown-toggle-button span {
  width: 7px;
  height: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform var(--transition-fast);
}

.nav-item.dropdown.is-open > .nav-link-group .dropdown-toggle-button span {
  transform: rotate(225deg) translateY(-1px);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 0;
  min-width: 260px;
  padding: 0.45rem;
  background: var(--colour-primary-light);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: var(--z-dropdown);
}

.nav-item.dropdown.is-open > .dropdown-menu,
.nav-item.dropdown:focus-within > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  width: 100%;
  min-height: 44px;
  padding: 0.7rem 0.85rem;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.88) !important;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.35;
  white-space: normal;
  transition: background-color var(--transition-fast), color var(--transition-fast), padding-left var(--transition-fast);
}

.dropdown-item:hover,
.dropdown-item:focus-visible,
.dropdown-item.is-active {
  background: rgba(212, 175, 55, 0.12);
  color: var(--colour-accent) !important;
  padding-left: 1rem;
}

.mobile-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex: 0 0 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-radius: 6px;
  background: transparent;
  color: var(--colour-text-inverse);
}

.mobile-menu-toggle:hover,
.mobile-menu-toggle:focus-visible {
  border-color: var(--colour-accent);
  color: var(--colour-accent);
}

.mobile-menu-icon {
  position: relative;
  width: 22px;
  height: 16px;
}

.mobile-menu-icon::before,
.mobile-menu-icon::after,
.mobile-menu-icon span {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform var(--transition-base), top var(--transition-base), opacity var(--transition-base);
}

.mobile-menu-icon::before { top: 0; }
.mobile-menu-icon span { top: 7px; }
.mobile-menu-icon::after { top: 14px; }

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon::before {
  top: 7px;
  transform: rotate(45deg);
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon span {
  opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .mobile-menu-icon::after {
  top: 7px;
  transform: rotate(-45deg);
}

.hide-desktop { display: none !important; }
.hide-mobile { display: initial !important; }

@media (max-width: 1023px) {
  :root {
    --container-padding: 1rem;
  }

  body.nav-is-open::before {
    content: "";
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.48);
    /* Keep the dimming layer below the sticky header; otherwise it can sit
       above the header stacking context and block taps on every menu link. */
    z-index: 900;
    pointer-events: auto;
  }

  .mobile-menu-toggle {
    display: inline-flex;
  }

  .hide-desktop {
    display: inline-flex !important;
  }

  .hide-mobile {
    display: none !important;
  }

  .site-nav {
    position: fixed;
    top: 76px;
    right: 0;
    width: min(92vw, 390px);
    height: calc(100dvh - 76px);
    margin: 0;
    padding: 1rem 1rem 2rem;
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    background: var(--colour-primary);
    border-left: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow: -12px 0 35px rgba(0, 0, 0, 0.22);
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--transition-base), visibility var(--transition-base);
    z-index: var(--z-mobile-nav);
  }

  .site-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }

  .nav-menu {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    width: 100%;
  }

  .nav-item,
  .nav-link-group,
  .nav-link {
    width: 100%;
  }

  .nav-link-group {
    display: flex;
    align-items: stretch;
  }

  .nav-link {
    flex: 1 1 auto;
    min-height: 50px;
    padding: 0.85rem 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 1rem;
  }

  .dropdown-toggle-button {
    width: 50px;
    min-height: 50px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .nav-item.dropdown.is-active > .nav-link-group .nav-link,
  .nav-link.is-active {
    border-bottom-color: var(--colour-accent);
  }

  .dropdown-menu {
    position: static;
    min-width: 0;
    width: 100%;
    margin: 0;
    padding: 0.35rem 0 0.55rem 0.75rem;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    display: none;
  }

  .nav-item.dropdown.is-open > .dropdown-menu {
    display: block;
  }

  .dropdown-item {
    min-height: 46px;
    padding: 0.75rem 0.85rem;
    border-left: 2px solid rgba(212, 175, 55, 0.30);
    border-radius: 0 5px 5px 0;
  }

  .dropdown-item:hover,
  .dropdown-item:focus-visible,
  .dropdown-item.is-active {
    padding-left: 1rem;
  }
}

@media (min-width: 1024px) {
  :root {
    --container-padding: 2rem;
  }

  .site-header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.45), transparent);
    pointer-events: none;
  }
}

@media (min-width: 1440px) {
  :root {
    --container-padding: 2.5rem;
  }
}

/* ==========================================================================
   GLOBAL ACCESSIBILITY / RESPONSIVE SAFETY
   ========================================================================== */

:focus-visible {
  outline: 3px solid var(--colour-accent);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: var(--z-skip);
  padding: 0.75rem 1.25rem;
  background: var(--colour-accent);
  color: var(--colour-primary);
  font-weight: 700;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 1rem;
}

@media (max-width: 767px) {
  .container {
    padding-inline: 1rem;
  }

  .section-padding {
    padding-block: 3rem;
  }
}

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

/* ------------------------------------------
   3. Typography
   ------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: var(--leading-tight);
  color: var(--colour-primary);
  text-wrap: balance;
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }
h5 { font-size: var(--text-md); }
h6 { font-size: var(--text-base); }

@media (min-width: 768px) {
  h1 { font-size: var(--text-4xl); }
  h2 { font-size: var(--text-3xl); }
  h3 { font-size: var(--text-2xl); }
}

@media (min-width: 1024px) {
  h1 { font-size: var(--text-5xl); }
  h2 { font-size: var(--text-4xl); }
}

p {
  margin-bottom: var(--space-4);
  text-wrap: pretty;
}

a {
  color: var(--colour-text);
  text-underline-offset: 0.15em;
  text-decoration-thickness: 1px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--colour-accent-dark);
}

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







/* ------------------------------------------
   4. Layout & Grid
   ------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section {
  padding-top: var(--space-10);
  padding-bottom: var(--space-10);
}

@media (min-width: 1024px) {
  .section {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }
}

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.flex {
  display: flex;
}

.flex--wrap {
  flex-wrap: wrap;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  align-items: center;
  justify-content: space-between;
}

/* ------------------------------------------
   5. Components
   ------------------------------------------ */

/* Section Header Pattern */
.section-header {
  margin-bottom: var(--space-8);
  max-width: 720px;
}

.section-header--center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-label {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--colour-accent-dark);
  margin-bottom: var(--space-3);
}

.section-title {
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  line-height: var(--leading-snug);
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--text-md);
  color: var(--colour-text-secondary);
  line-height: var(--leading-relaxed);
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--text-4xl);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 48px;
}

.btn:focus-visible {
  outline: 2px solid var(--colour-accent);
  outline-offset: 2px;
}

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

.btn--primary:hover {
  background-color: var(--colour-primary-light);
  border-color: var(--colour-primary-light);
  color: var(--colour-text-inverse);
}

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

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

.btn--accent {
  background-color: var(--colour-accent);
  color: var(--colour-primary);
  border-color: var(--colour-accent);
  font-weight: 700;
}

.btn--accent:hover {
  background-color: var(--colour-accent-hover);
  border-color: var(--colour-accent-hover);
  color: var(--colour-primary);
}

.btn--ghost {
  background-color: transparent;
  color: var(--colour-text-inverse);
  border-color: var(--colour-text-inverse);
}

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

.btn--small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  min-height: 40px;
}

.btn--large {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-lg);
  min-height: 56px;
}

/* Cards */
.card {
  background-color: var(--colour-background);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card--dark {
  background-color: var(--colour-primary-light);
  color: var(--colour-text-inverse);
  border-color: var(--colour-border-dark);
}

.card--dark h1,
.card--dark h2,
.card--dark h3,
.card--dark h4,
.card--dark h5,
.card--dark h6 {
  color: var(--colour-text-inverse);
}

/* Forms */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--colour-text);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--colour-text);
  background-color: var(--colour-background);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--colour-accent);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--colour-text-muted);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

/* ------------------------------------------
   6. Utilities
   ------------------------------------------ */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-inverse { color: var(--colour-text-inverse); }
.text-muted { color: var(--colour-text-muted); }
.text-secondary { color: var(--colour-text-secondary); }
.text-accent { color: var(--colour-accent-dark); }

.bg-primary { background-color: var(--colour-primary); }
.bg-alt { background-color: var(--colour-background-alt); }
.bg-dark { background-color: var(--colour-background-dark); }

.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }

.no-decoration { text-decoration: none; }

/* ============================================
   13. Page Hero (Inner Pages)
   ============================================ */
.page-hero {
  background-color: var(--colour-primary);
  color: var(--colour-text-inverse);
  padding-top: var(--space-9);
  padding-bottom: var(--space-10);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at top right, var(--colour-primary-lighter) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.page-hero-label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--colour-accent);
  margin-bottom: var(--space-4);
}

.page-hero-title {
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  line-height: var(--leading-tight);
  color: var(--colour-text-inverse);
  margin-bottom: var(--space-5);
}

.page-hero-description {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: rgba(255, 255, 255, 0.85);
}

@media (min-width: 768px) {
  .page-hero-title {
    font-size: var(--text-4xl);
  }
}

/* ============================================
   14. CTA Section (Dark)
   ============================================ */
.cta-section {
  text-align: center;
  background-color: var(--colour-primary);
  color: var(--colour-text-inverse);
}

.cta-section .section-title {
  color: var(--colour-text-inverse);
}

.cta-section .section-label {
  color: var(--colour-accent);
}

.cta-section .section-description {
  color: rgba(255, 255, 255, 0.8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-7);
}

/* ============================================
   15. Editorial Patterns
   ============================================ */
.editorial-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}

.editorial-split--reverse {
  grid-template-columns: 1fr;
}

@media (min-width: 1024px) {
  .editorial-split {
    grid-template-columns: 5fr 7fr;
    gap: var(--space-10);
  }

  .editorial-split--reverse {
    grid-template-columns: 7fr 5fr;
  }
}

.editorial-label {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--colour-accent-dark);
  margin-bottom: var(--space-3);
  display: block;
}

.editorial-title {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-5);
  color: var(--colour-primary);
}

@media (min-width: 768px) {
  .editorial-title {
    font-size: var(--text-3xl);
  }
}

.editorial-text {
  font-size: var(--text-lg);
  color: var(--colour-text-secondary);
  line-height: var(--leading-relaxed);
}

.editorial-text p {
  margin-bottom: var(--space-4);
}

.editorial-text p:last-child {
  margin-bottom: 0;
}

.editorial-visual {
  background-color: var(--colour-background-alt);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius-lg);
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--colour-text-muted);
  font-size: var(--text-sm);
}

















/* ============================================
   Global Footer
   ============================================ */
.site-footer {
  margin-top: auto;
  background-color: var(--colour-background-dark);
  color: rgba(255, 255, 255, 0.78);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer > .container {
  padding-top: var(--space-10);
  padding-bottom: var(--space-5);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  padding-bottom: var(--space-8);
}

.footer-brand,
.footer-nav,
.footer-contact {
  min-width: 0;
}

.footer-brand img {
  width: auto;
  max-width: 120px;
  height: auto;
  margin-bottom: var(--space-4);
}

.footer-description {
  max-width: 360px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.68);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.footer-heading {
  margin-bottom: var(--space-4);
  color: var(--colour-text-inverse);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.footer-list {
  display: grid;
  gap: var(--space-2);
}

.footer-link {
  display: inline-block;
  color: rgba(255, 255, 255, 0.72) !important;
  font-size: var(--text-sm);
  line-height: 1.45;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--colour-accent) !important;
}

.footer-contact {
  display: flex;
  flex-direction: column;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  min-width: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.footer-contact-item span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.footer-contact-icon {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  margin-top: 2px;
  stroke: var(--colour-accent);
  stroke-width: 1.6;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.10);
}

.footer-copyright {
  margin: 0;
  color: rgba(255, 255, 255, 0.58);
  font-size: var(--text-xs);
  line-height: 1.5;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-legal-link {
  color: rgba(255, 255, 255, 0.65) !important;
  font-size: var(--text-xs);
}

.footer-legal-link:hover,
.footer-legal-link:focus-visible {
  color: var(--colour-accent) !important;
}

@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1.35fr;
  }
}

/* ==========================================================================
   PHASE 3 — BRAND CONSISTENCY & CONTRAST SAFEGUARDS
   ========================================================================== */

/* Keep legacy button names visually aligned with the single brand system. */
.btn-primary {
  background-color: var(--colour-accent);
  color: var(--colour-primary);
  border-color: var(--colour-accent);
  font-weight: 700;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--colour-accent-hover);
  border-color: var(--colour-accent-hover);
  color: var(--colour-primary);
}

.btn-outline {
  background-color: transparent;
  color: var(--colour-text-inverse);
  border-color: rgba(255, 255, 255, 0.72);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background-color: var(--colour-text-inverse);
  color: var(--colour-primary);
  border-color: var(--colour-text-inverse);
}

/* Dark page sections must keep headings readable. */
.bg-slate h1, .bg-slate h2, .bg-slate h3, .bg-slate h4,
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4,
.card--dark h1, .card--dark h2, .card--dark h3, .card--dark h4 {
  color: var(--colour-text-inverse);
}

/* Consistent text treatment on dark surfaces. */
.bg-slate p, .bg-dark p, .card--dark p {
  color: rgba(255, 255, 255, 0.82);
}

/* Brand accent links remain visible on dark surfaces. */
.bg-slate a, .bg-dark a, .card--dark a {
  color: var(--colour-accent);
}

.bg-slate a:hover, .bg-dark a:hover, .card--dark a:hover {
  color: var(--colour-accent-hover);
}