/* =====================================================
   components.css — IDF Kenya v3.0
   Unified component styles for navbar + footer
   Fixed for root-level HTML files (all .html at root)

   Key improvements:
     · Glass navigation effect (transparent to blurred white on scroll)
     · Fixed asset paths (../assets/ instead of /assets/)
     · Removed all /pages/ references
     · Separate desktop and mobile navigation
     · Max-height animations for mobile drawer
     · Proper touch targets (44px minimum)
     · Unified scroll handling with .is-scrolled class
     · Responsive grid-based footer layout
     · Logo with full text: IDF + Integrated Development Facility + Kenya
     · Active link styling with .is-active class
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=DM+Sans:wght@300;400;500;600;700&display=swap');

/* =====================================================
   DESIGN TOKENS
   ===================================================== */
:root {
  /* Brand Colors - IDF Kenya Palette */
  --idf-navy:         #1B2E4B;
  --idf-navy-dark:    #0f1e33;
  --idf-blue:         #2E6DB4;
  --idf-blue-light:   #5B9BD5;
  --idf-blue-pale:    #EBF3FB;
  --idf-green:        #3A7D44;
  --idf-green-light:  #52a85f;
  --idf-cream:        #F8FAFF;
  --idf-white:        #FFFFFF;
  --idf-gray-light:   #F5F7FA;
  --idf-gray-mid:     #6B7280;
  --idf-gray-dark:    #374151;

  /* Header */
  --header-height:    4.5rem;
  --header-z:         1000;
  --logo-width-desktop: 52px;
  --logo-height-desktop: 52px;
  --logo-width-tablet: 44px;
  --logo-height-tablet: 44px;

  /* Container */
  --container-max:    1280px;
  --container-pad:    clamp(1rem, 5vw, 2rem);

  /* Transitions */
  --transition-fast:  0.2s ease;
  --transition-mid:   0.3s ease;
  --transition-slow:  0.4s ease;
  --transition-drawer: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* Footer */
  --footer-bg:        #112236;
  --footer-text:      rgba(255, 255, 255, 0.85);
  --footer-text-mid:  rgba(255, 255, 255, 0.65);
  --footer-text-light: rgba(255, 255, 255, 0.45);
  --footer-border:    rgba(255, 255, 255, 0.1);
  --footer-hover:     #52a85f;
}

/* =====================================================
   RESET & BASE
   ===================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

/* =====================================================
   HEADER / NAVBAR — GLOBAL GLASS NAVIGATION
   ===================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--header-z);
  background-color: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 16px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
}

/* Scrolled State (Triggered by components.js) */
.site-header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.94) !important;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  padding: 12px 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

/* Logo scaling on scroll */
.site-header.is-scrolled .logo__img {
  width: calc(var(--logo-width-desktop) * 0.88);
  height: calc(var(--logo-height-desktop) * 0.88);
}

/* Logo text scaling on scroll */
.site-header.is-scrolled .logo__primary {
  font-size: 1rem;
}

.site-header.is-scrolled .logo__full {
  font-size: 0.6rem;
}

.site-header.is-scrolled .logo__tagline {
  font-size: 0.55rem;
}

/* Nav Inner Container */
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  position: relative;
  transition: height var(--transition-mid);
}

/* =====================================================
   LOGO WITH TEXT
   ===================================================== */

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
  opacity: 1;
  transition: opacity var(--transition-fast);
}

.logo:hover {
  opacity: 0.85;
}

.logo:focus-visible {
  outline: 2px solid var(--idf-blue-light);
  outline-offset: 4px;
  border-radius: 4px;
}

/* Logo Image */
.logo__picture {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo__img {
  width: var(--logo-width-desktop);
  height: var(--logo-height-desktop);
  display: block;
  object-fit: contain;
  transition: width var(--transition-mid), height var(--transition-mid);
  filter: none;
}

/* Scrolled state - logo retains original colours */
.site-header.is-scrolled .logo__img {
  filter: none;
}

/* Logo Text Container */
.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  margin-left: 0;
}

/* Primary Text "IDF" */
.logo__primary {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--idf-navy) !important;
  letter-spacing: -0.01em;
  line-height: 1.2;
  transition: font-size var(--transition-mid), color var(--transition-mid);
}

/* Full Text "Integrated Development Facility" */
.logo__full {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--idf-navy) !important;
  letter-spacing: 0.02em;
  line-height: 1.3;
  white-space: nowrap;
  transition: font-size var(--transition-mid), color var(--transition-mid);
}

/* Tagline "Kenya" */
.logo__tagline {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--idf-blue-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.2;
  transition: font-size var(--transition-mid), color var(--transition-mid);
}

/* Scrolled state text colors */
.site-header.is-scrolled .logo__primary,
.site-header.is-scrolled .logo__full {
  color: var(--idf-navy) !important;
}

.site-header.is-scrolled .logo__tagline {
  color: var(--idf-blue);
}

/* Fallback when image fails to load */
.logo--img-error .logo__img {
  display: none;
}

.logo--img-error .logo__fallback {
  display: flex;
}

.logo__fallback {
  display: none;
  flex-direction: column;
  gap: 0.15rem;
}

.logo__fallback-primary {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: inherit;
  letter-spacing: -0.01em;
}

.logo__accent {
  color: var(--idf-green);
}

.logo__fallback-tag {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}

/* =====================================================
   DESKTOP NAVIGATION
   ===================================================== */

.desktop-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.desktop-nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--idf-navy) !important;
  text-decoration: none;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
  cursor: pointer;
}

/* Scrolled: Navy text */
.site-header.is-scrolled .nav-link {
  color: var(--idf-navy) !important;
}

/* Animated underline — uses green for hover/active states */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--idf-green);
  border-radius: 2px;
  transition: width 0.25s ease;
}

/* Active and hover states for nav links */
.nav-link:hover,
.nav-link.is-active {
  color: var(--idf-blue-light) !important;
}

/* Scrolled state active/hover colors */
.site-header.is-scrolled .nav-link:hover,
.site-header.is-scrolled .nav-link.is-active {
  color: var(--idf-blue) !important;
}

/* Underline animation for hover and active states */
.nav-link:hover::after,
.nav-link.is-active::after {
  width: 100%;
}

.nav-link:focus-visible {
  outline: 2px solid var(--idf-green);
  outline-offset: 4px;
  border-radius: 2px;
}

/* =====================================================
   CTA BUTTON
   ===================================================== */

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  background: var(--idf-green);
  color: var(--idf-white);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.cta-btn:hover {
  background: var(--idf-green-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(58, 125, 68, 0.3);
}

.cta-btn:focus-visible {
  outline: 2px solid var(--idf-green);
  outline-offset: 2px;
}

.cta-btn svg {
  transition: transform var(--transition-fast);
}

.cta-btn:hover svg {
  transform: translateX(3px);
}

.desktop-cta {
  flex-shrink: 0;
}

/* =====================================================
   HAMBURGER BUTTON (Mobile Only)
   ===================================================== */

.hamburger-btn {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0.5rem;
  background: none;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  cursor: pointer;
  color: var(--idf-navy);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.hamburger-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.35);
}

/* Scrolled state hamburger */
.site-header.is-scrolled .hamburger-btn {
  color: var(--idf-navy);
  border-color: rgba(0, 0, 0, 0.2);
}

.site-header.is-scrolled .hamburger-btn:hover {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.3);
}

.hamburger-btn[aria-expanded="true"] {
  background: rgba(58, 125, 68, 0.15);
  border-color: var(--idf-green);
}

.hamburger-btn:focus-visible {
  outline: 2px solid var(--idf-green);
  outline-offset: 2px;
}

/* Hamburger Icon Lines */
.hamburger-icon {
  display: block;
}

.hamburger-line {
  transition: transform 0.28s ease, opacity 0.2s ease;
  transform-origin: center;
  transform-box: fill-box;
}

.hamburger-btn[aria-expanded="true"] .hamburger-line--top {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn[aria-expanded="true"] .hamburger-line--mid {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger-btn[aria-expanded="true"] .hamburger-line--bottom {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* =====================================================
   MOBILE DRAWER — GLASS EFFECT
   ===================================================== */

.mobile-drawer {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98) !important;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
  max-height: 0;
  overflow: hidden;
  visibility: hidden;
  transition: max-height var(--transition-drawer), visibility var(--transition-drawer);
  isolation: isolate;
  z-index: calc(var(--header-z) - 1);
}

.mobile-drawer.is-open {
  max-height: 80vh;
  overflow-y: auto;
  visibility: visible;
}

/* Mobile Navigation Links — Navy text for white menu */
.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.5rem;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 500;
  color: var(--idf-navy) !important;
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all var(--transition-fast);
  min-height: 52px;
}

.mobile-nav-link:hover {
  background: var(--idf-blue-pale);
  color: var(--idf-blue) !important;
  padding-left: 1.75rem;
}

.mobile-nav-link.is-active {
  color: var(--idf-blue) !important;
  font-weight: 600;
}

.mobile-nav-link:focus-visible {
  outline: 2px solid var(--idf-green);
  outline-offset: -2px;
}

/* Active dot indicator */
.mobile-nav-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: transparent;
  transition: background var(--transition-fast);
  flex-shrink: 0;
}

.mobile-nav-link.is-active .mobile-nav-dot {
  background: var(--idf-blue);
}

/* Mobile CTA Wrapper */
.mobile-cta-wrap {
  padding: 1rem 1.5rem 1.5rem;
}

.cta-btn--full {
  width: 100%;
  justify-content: center;
  background: var(--idf-green);
}

/* =====================================================
   FOOTER
   ===================================================== */

.site-footer {
  background: var(--footer-bg);
  font-family: 'DM Sans', system-ui, sans-serif;
  position: relative;
  margin-top: auto;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* Footer Grid Layout */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.2fr;
  gap: 2.5rem;
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--footer-border);
}

/* Brand Column */
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* ── Footer Logo ────────────────────────────────────────────
   FIX: The previous approach used filter:brightness(0)invert(1)
   which turns the entire image — including any opaque background
   rect inside the SVG — to solid white, producing a blank white
   box. The fix mirrors the navbar exactly:
     • Show the image with filter:none (original colours)
     • Add a text block (.footer-logo__text) for IDF / subtitle /
       tagline so the brand is always visible even if the image
       path fails
     • Adapt text colours for the dark footer background
   ─────────────────────────────────────────────────────────── */

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  margin-bottom: 0.5rem;
  opacity: 1;
  transition: opacity var(--transition-fast);
}

.footer-logo-link:hover {
  opacity: 0.85;
}

/* FIX: was filter:brightness(0)invert(1) — collapsed all pixels to
   solid white, making the logo invisible on the dark footer.
   Now uses filter:none so the SVG renders in its original colours,
   exactly matching the technique used for .logo__img in the navbar. */
.footer-logo__img {
  width: 52px;
  height: 52px;
  display: block;
  object-fit: contain;
  filter: none;
  flex-shrink: 0;
  transition: opacity var(--transition-fast);
}

/* Text block — mirrors .logo__text in navbar, re-coloured for dark bg */
.footer-logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  margin-left: 0.25rem;
}

.footer-logo__primary {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--footer-text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.footer-logo__full {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--footer-text-mid);
  letter-spacing: 0.02em;
  line-height: 1.3;
  white-space: nowrap;
}

.footer-logo__tagline {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--idf-green-light);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.2;
}

/* Fallback text block — hidden by default, shown via onerror on <img> */
.footer-logo__fallback {
  display: none;
}

.footer-tagline {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--footer-text-mid);
  margin: 0;
}

.footer-desc {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--footer-text-light);
  margin: 0;
}

/* Footer Headings */
.footer-heading {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--footer-text-light);
  margin: 0 0 1.25rem 0;
}

/* Footer Navigation Lists */
.footer-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-link {
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.875rem;
  color: var(--footer-text-mid);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.footer-link:hover {
  color: var(--footer-hover);
}

/* Contact Section */
.footer-contact {
  display: flex;
  flex-direction: column;
}

.footer-address {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.footer-contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
}

.footer-contact-link svg {
  flex-shrink: 0;
}

.footer-address-text {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.875rem;
  color: var(--footer-text-mid);
}

.footer-link--contact {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--footer-text-mid);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-link--contact:hover { color: var(--footer-hover); }
.footer-link__text { line-height: 1.4; }

/* Social Links */
.footer-social {
  display: flex;
  flex-direction: column;
}

.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.5rem 0;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.875rem;
  color: var(--footer-text-mid);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.social-link:hover {
  color: var(--footer-hover);
  transform: translateX(4px);
}

.social-link svg {
  flex-shrink: 0;
}

.social-link-label {
  line-height: 1;
}

/* Back to Top Button */
.back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--footer-border);
  border-radius: 8px;
  color: var(--footer-text-mid);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  width: fit-content;
}

.back-to-top:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--footer-text);
  transform: translateY(-2px);
}

.back-to-top svg {
  transition: transform var(--transition-fast);
}

.back-to-top:hover svg {
  transform: translateY(-2px);
}

/* Footer Bottom Bar */
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--footer-border);
}

.footer-bottom-left {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--footer-text-light);
}

.footer-legal-divider {
  color: var(--footer-text-light);
}

.footer-legal-links {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-legal-link {
  font-size: 0.75rem;
  color: var(--footer-text-light);
}

.footer-legal-link:hover {
  color: var(--footer-hover);
}

.footer-bottom-right {
  font-size: 0.75rem;
  color: var(--footer-text-light);
  margin: 0;
}

/* Credit Strip */
.credit-strip {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem 0;
  font-size: 0.7rem;
  color: var(--footer-text-light);
}

.credit-strip__link {
  color: var(--footer-text-mid);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.credit-strip__link:hover {
  color: var(--footer-hover);
}

.credit-strip__heart {
  color: #e25555;
  display: inline-block;
  animation: heartbeat 1.5s ease infinite;
}

@keyframes heartbeat {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

/* =====================================================
   RESPONSIVE BREAKPOINTS
   ===================================================== */

/* Tablet */

/* Mobile (Show Hamburger, Hide Desktop Nav) */

/* Small Mobile */

/* =====================================================
   UTILITY CLASSES
   ===================================================== */

/* Visually hidden (for screen readers only) */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Container utility */
.container-fluid {
  width: 100%;
  padding-inline: var(--container-pad);
}

/* Hide scrollbar on mobile drawer when closed */
.mobile-drawer {
  -webkit-overflow-scrolling: touch;
}

/* Smooth focus transitions */
*:focus-visible {
  outline: 2px solid var(--idf-green);
  outline-offset: 2px;
}

/* =====================================================
   FALLBACK STYLES (for when components fail to load)
   ===================================================== */

.component-fallback {
  padding: 2rem;
  text-align: center;
  background: var(--idf-gray-light);
  border: 1px solid #ddd;
  margin: 1rem;
}

.component-fallback a {
  color: var(--idf-green);
  text-decoration: none;
}

.component-fallback a:hover {
  text-decoration: underline;
}