:root {
      --bg-primary: #fcfbf9;
      --bg-surface: #ffffff;
      --bg-alt: #f4f2ee;
      --text-main: #111111;
      --text-muted: #484848; /* Darkened for WCAG AA 4.5:1 contrast */
      --border-color: #dcd8d0;
      --focus-ring: #005fcc;
      --font-serif: 'Playfair Display', Georgia, serif;
      --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    }


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


    html {
      scroll-behavior: smooth;
    }


    /* Respect Vestibular / Reduced Motion Preferences */
    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }
      * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }


    body {
      background-color: var(--bg-primary);
      color: var(--text-main);
      font-family: var(--font-sans);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }


    /* --- ACCESSIBILITY UTILITIES --- */
    .skip-link {
      position: absolute;
      top: -100px;
      left: 16px;
      background: var(--text-main);
      color: var(--bg-surface);
      padding: 12px 20px;
      z-index: 9999;
      font-weight: 600;
      text-decoration: none;
      transition: top 0.2s ease;
    }


    .skip-link:focus {
      top: 16px;
    }


    /* Universal High-Contrast Keyboard Focus Ring */
    :focus-visible {
      outline: 3px solid var(--focus-ring);
      outline-offset: 3px;
    }


    /* --- LAYOUT UTILITIES --- */
    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 2rem;
    }


    .section-pad {
      padding: 6rem 0;
      border-bottom: 1px solid var(--border-color);
    }


    .section-label {
      font-family: var(--font-sans);
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.15em;
      font-weight: 600;
      color: var(--text-muted);
      margin-bottom: 1.5rem;
      display: inline-block;
    }


    /* --- HEADER / NAVIGATION --- */
    header {
      position: sticky;
      top: 0;
      background-color: rgba(252, 251, 249, 0.92);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid var(--border-color);
      z-index: 1000;
    }


    nav {
      display: flex;
      justify-content: space-between;
      align-items: center;
      height: 76px;
      position: relative;
    }


    .logo {
      font-family: var(--font-sans);
      font-weight: 600;
      font-size: 1rem;
      letter-spacing: -0.02em;
      text-decoration: none;
      color: var(--text-main);
      display: flex;
      align-items: center;
      gap: 0.5rem;
      z-index: 1002;
    }

    /* Full spectrum rainbow cycle */
    @keyframes fullSpectrumCycle {
      0%   { color: hsl(0, 20%, 55%); }   /* Muted Red-Gray */
      16%  { color: hsl(50, 20%, 50%); }  /* Muted Warm Sage / Amber-Gray */
      33%  { color: hsl(130, 20%, 50%); } /* Muted Sage-Green Gray */
      50%  { color: hsl(190, 25%, 52%); } /* Muted Steel-Blue Gray */
      66%  { color: hsl(230, 25%, 60%); } /* Muted Slate / Indigo-Gray */
      83%  { color: hsl(280, 20%, 58%); } /* Muted Dusty Lavender-Gray */
      100% { color: hsl(360, 20%, 55%); } /* Back to Muted Red-Gray */
    }

/* Class to apply to your HTML element */
.animated-brand-text {
  animation: fullSpectrumCycle 10s linear infinite;
}
    /* Mobile Hamburger Menu Toggle Button */
    .nav-toggle {
      display: none;
      background: none;
      border: 1px solid var(--border-color);
      padding: 0.6rem;
      cursor: pointer;
      z-index: 1002;
      color: var(--text-main);
      min-width: 44px;
      min-height: 44px;
      align-items: center;
      justify-content: center;
    }


    .nav-toggle-bar {
      display: block;
      width: 22px;
      height: 2px;
      background-color: var(--text-main);
      position: relative;
    }


    .nav-toggle-bar::before,
    .nav-toggle-bar::after {
      content: '';
      position: absolute;
      width: 22px;
      height: 2px;
      background-color: var(--text-main);
      left: 0;
      transition: transform 0.2s ease, top 0.2s ease;
    }


    .nav-toggle-bar::before { top: -6px; }
    .nav-toggle-bar::after { top: 6px; }


    .nav-links {
      display: flex;
      gap: 2.25rem;
      list-style: none;
      align-items: center;
    }


    .nav-links a {
      text-decoration: none;
      color: var(--text-main);
      font-size: 0.9rem;
      font-weight: 500;
      padding: 0.5rem 0;
      transition: color 0.2s ease;
    }


    .nav-links a:hover {
      color: var(--text-muted);
    }


    /* --- BUTTONS --- */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 0.9rem 1.85rem;
      font-size: 0.85rem;
      font-weight: 500;
      text-decoration: none;
      transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
      cursor: pointer;
      border: 1px solid var(--text-main);
      background: transparent;
      min-height: 44px; /* Accessible Touch Target Size */
      text-align: center;
    }


    .btn-primary {
      background-color: var(--text-main);
      color: var(--bg-surface);
    }


    .btn-primary:hover {
      background-color: transparent;
      color: var(--text-main);
      transform: translateY(-2px);
    }


    .btn-secondary {
      background-color: transparent;
      color: var(--text-main);
    }


    .btn-secondary:hover {
      background-color: var(--text-main);
      color: var(--bg-surface);
      transform: translateY(-2px);
    }


    .btn-small {
      padding: 0.65rem 1.25rem;
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
    }


    /* --- IMAGE PLACEHOLDERS --- */
    .img-placeholder {
      width: 100%;
      background-color: var(--bg-alt);
      border: 1px dashed var(--border-color);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      color: var(--text-muted);
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      position: relative;
      overflow: hidden;
    }


    .img-placeholder img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    }


    .img-placeholder:hover img {
      transform: scale(1.03);
    }


    /* --- HERO SECTION --- */
    .hero {
      padding: 6rem 0 5rem;
      border-bottom: 1px solid var(--border-color);
    }


    .hero-title {
      font-family: var(--font-serif);
      font-size: clamp(2.4rem, 6.5vw, 5.25rem);
      font-weight: 400;
      line-height: 1.1;
      max-width: 960px;
      margin-bottom: 1.75rem;
      letter-spacing: -0.03em;
    }


    .hero-subtitle {
      font-size: clamp(1.05rem, 2vw, 1.35rem);
      color: var(--text-muted);
      max-width: 680px;
      margin-bottom: 2.5rem;
      font-weight: 400;
      line-height: 1.6;
    }


    .hero-cta {
      display: flex;
      gap: 1.25rem;
      flex-wrap: wrap;
      margin-bottom: 4rem;
    }


    .hero-main-img .img-placeholder {
      aspect-ratio: 16 / 9;
      width: 100%;
    }


    /* --- ABOUT & MISSION --- */
    .about-grid {
      display: grid;
      grid-template-columns: 1fr 1.3fr;
      gap: 4rem;
      align-items: start;
    }


    .about-text {
      font-family: var(--font-serif);
      font-size: clamp(1.4rem, 3vw, 1.85rem);
      line-height: 1.4;
      font-weight: 400;
      letter-spacing: -0.01em;
    }


    .supporter-line {
      font-family: var(--font-sans);
      font-size: 0.95rem;
      color: var(--text-muted);
      margin-top: 2.25rem;
      padding-top: 1.5rem;
      border-top: 1px solid var(--border-color);
      font-weight: 400;
      line-height: 1.5;
    }


    .supporter-line strong {
      color: var(--text-main);
      font-weight: 600;
    }


    .about-visual .img-placeholder {
      aspect-ratio: 4 / 3;
    }


    /* --- METRICS / IMPACT GRID --- */
    .metrics-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
      border-top: 1px solid var(--border-color);
      border-left: 1px solid var(--border-color);
      margin-top: 4rem;
    }


    .metric-card {
      padding: 2.5rem 2rem;
      border-right: 1px solid var(--border-color);
      border-bottom: 1px solid var(--border-color);
      background: var(--bg-primary);
    }


    .metric-num {
      font-family: var(--font-sans);
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--text-muted);
      margin-bottom: 1rem;
      display: block;
      letter-spacing: 0.1em;
    }


    .metric-stat {
      font-family: var(--font-serif);
      font-size: clamp(2.5rem, 5vw, 3.25rem);
      font-weight: 400;
      line-height: 1;
      margin-bottom: 0.75rem;
    }


    .metric-title {
      font-size: 1.1rem;
      font-weight: 500;
      margin-bottom: 0.5rem;
    }


    .metric-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 400;
    }


    /* --- RECENT BUILDS (PROJECTS) --- */
    .projects-header {
      margin-bottom: 3rem;
    }


    .projects-title {
      font-family: var(--font-serif);
      font-size: clamp(2.2rem, 5vw, 2.75rem);
      font-weight: 400;
      letter-spacing: -0.02em;
    }


    .projects-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
      gap: 2rem;
      margin-bottom: 5rem;
    }


    .project-card {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      transition: box-shadow 0.3s ease, transform 0.3s ease;
    }


    .project-card:hover {
      box-shadow: 0 16px 32px rgba(0, 0, 0, 0.04);
      transform: translateY(-4px);
    }


    .project-img-wrap .img-placeholder {
      aspect-ratio: 16 / 10;
      border-bottom: 1px solid var(--border-color);
      border-left: none;
      border-right: none;
      border-top: none;
    }


    .project-content {
      padding: 2rem;
      display: flex;
      flex-direction: column;
      justify-content: space-between;
      flex-grow: 1;
    }


    .project-tag {
      font-size: 0.75rem;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--text-muted);
      margin-bottom: 0.75rem;
      font-weight: 600;
      display: inline-block;
    }


    .project-title {
      font-family: var(--font-serif);
      font-size: 1.65rem;
      font-weight: 400;
      margin-bottom: 1rem;
    }


    .project-desc {
      color: var(--text-muted);
      font-size: 0.95rem;
      margin-bottom: 2.25rem;
      font-weight: 400;
    }


    .project-actions {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
    }


    /* --- HOW IT WORKS (PROCESS) --- */
    .process-section {
      border-top: 1px solid var(--border-color);
      padding-top: 5rem;
    }


    .process-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 2.5rem;
      margin-top: 2rem;
    }


    .process-num {
      font-size: 0.8rem;
      font-weight: 600;
      color: var(--text-muted);
      letter-spacing: 0.1em;
      margin-bottom: 0.75rem;
      display: block;
    }


    .process-title {
      font-family: var(--font-serif);
      font-size: 1.5rem;
      font-weight: 400;
      margin-bottom: 0.75rem;
    }


    .process-desc {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 400;
    }


    /* --- ACCESSIBLE MODAL DIALOG --- */
    .modal-overlay {
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(17, 17, 17, 0.8);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      z-index: 2000;
      display: none;
      align-items: center;
      justify-content: center;
      padding: 1.25rem;
    }


    .modal-content {
      background: var(--bg-surface);
      border: 1px solid var(--border-color);
      max-width: 680px;
      width: 100%;
      padding: 2.5rem;
      position: relative;
      max-height: 90vh;
      overflow-y: auto;
    }


    .modal-close {
      position: absolute;
      top: 1.25rem;
      right: 1.25rem;
      background: var(--bg-primary);
      border: 1px solid var(--border-color);
      width: 44px;
      height: 44px;
      font-size: 1.5rem;
      cursor: pointer;
      color: var(--text-main);
      display: flex;
      align-items: center;
      justify-content: center;
      line-height: 1;
    }


    .modal-header {
      margin-bottom: 1.5rem;
      border-bottom: 1px solid var(--border-color);
      padding-bottom: 1.25rem;
      padding-right: 3rem;
    }


    .modal-title {
      font-family: var(--font-serif);
      font-size: clamp(1.5rem, 4vw, 2rem);
      font-weight: 400;
    }


    .modal-body h4 {
      font-size: 0.85rem;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin: 1.5rem 0 0.5rem;
      color: var(--text-main);
    }


    .modal-body p, .modal-body ul {
      font-size: 0.95rem;
      color: var(--text-muted);
      font-weight: 400;
      margin-bottom: 1rem;
    }


    .modal-body ul {
      padding-left: 1.25rem;
    }


    /* --- DEVICE REQUEST FORM --- */
    .contact-section {
      padding: 6rem 0;
      background-color: var(--bg-surface);
      border-bottom: 1px solid var(--border-color);
    }


    .contact-grid {
      display: grid;
      grid-template-columns: 1fr 1.2fr;
      gap: 4rem;
    }


    .contact-info h2 {
      font-family: var(--font-serif);
      font-size: clamp(2.2rem, 5vw, 3rem);
      font-weight: 400;
      margin-bottom: 1.25rem;
      letter-spacing: -0.02em;
    }


    .contact-info p {
      color: var(--text-muted);
      margin-bottom: 2rem;
      font-weight: 400;
      font-size: 1.05rem;
      max-width: 440px;
    }


    .form-group {
      margin-bottom: 1.5rem;
    }


    .form-row {
      display: grid;
      grid-template-columns: 2fr 1fr;
      gap: 1.25rem;
    }


    label {
      display: block;
      font-size: 0.8rem;
      text-transform: uppercase;
      letter-spacing: 0.1em;
      font-weight: 600;
      margin-bottom: 0.5rem;
      color: var(--text-main);
    }


    .label-hint {
      font-size: 0.85rem;
      color: var(--text-muted);
      margin-top: 0.4rem;
      display: block;
      font-weight: 400;
      text-transform: none;
      letter-spacing: normal;
    }


    .label-hint a {
      color: var(--text-main);
      text-decoration: underline;
      font-weight: 500;
    }


    input, select, textarea {
      width: 100%;
      padding: 0.95rem 1rem;
      border: 1px solid var(--border-color);
      background: var(--bg-primary);
      font-family: var(--font-sans);
      font-size: 1rem;
      color: var(--text-main);
      border-radius: 0;
      outline: none;
      transition: border-color 0.2s, background-color 0.2s;
      min-height: 48px; /* Touch friendly height */
    }


    input:focus, select:focus, textarea:focus {
      border-color: var(--text-main);
      background: var(--bg-surface);
    }


    textarea {
      resize: vertical;
      min-height: 140px;
    }


    footer {
      padding: 3rem 0;
      background-color: var(--bg-primary);
    }


    .footer-content {
      display: flex;
      justify-content: space-between;
      align-items: flex-start;
      flex-wrap: wrap;
      gap: 1.5rem;
      font-size: 0.85rem;
      color: var(--text-muted);
    }


    .footer-copy {
      display: flex;
      flex-direction: column;
      gap: 0.35rem;
    }


    .footer-support-text {
      color: var(--text-main);
      font-weight: 500;
    }


    .footer-links {
      display: flex;
      gap: 1.75rem;
      flex-wrap: wrap;
    }


    .footer-links a {
      color: var(--text-main);
      text-decoration: none;
      font-weight: 500;
      padding: 0.25rem 0;
    }


    .footer-links a:hover {
      text-decoration: underline;
    }


    /* --- RESPONSIVE & MOBILE BREAKPOINTS --- */
    @media (max-width: 900px) {
      .about-grid, .contact-grid, .form-row {
        grid-template-columns: 1fr;
        gap: 2.5rem;
      }


      .hero {
        padding: 4rem 0 3.5rem;
      }


      .hero-cta {
        flex-direction: column;
        align-items: stretch;
      }


      .hero-cta .btn {
        width: 100%;
      }
    }


    @media (max-width: 768px) {
      .container {
        padding: 0 1.25rem;
      }


      .section-pad {
        padding: 4rem 0;
      }


      .nav-toggle {
        display: flex;
      }


      /* Mobile Navigation Menu Drawer */
      .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        width: 100%;
        background-color: var(--bg-surface);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 1.5rem 1.25rem;
        gap: 1.25rem;
        box-shadow: 0 16px 24px rgba(0,0,0,0.06);
        z-index: 1001;
      }


      .nav-links.open {
        display: flex;
      }


      .nav-links a {
        width: 100%;
        font-size: 1.1rem;
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--bg-alt);
      }


      .project-actions {
        flex-direction: column;
        align-items: stretch;
      }


      .project-actions .btn {
        width: 100%;
      }


      .modal-content {
        padding: 1.75rem 1.25rem;
      }
    }