/* ─── COMPACT HERO ───────────────────────────────────── */
    .compact-hero {
      background: var(--charcoal);
      color: var(--ivory);
      padding: 3rem 0 var(--space-xl);
      position: relative;
      overflow: hidden;
    }
    .compact-hero::before {
      content: 'MASK';
      position: absolute;
      right: -2rem;
      top: 50%;
      transform: translateY(-50%);
      font-family: var(--font-display);
      font-size: 18vw;
      font-weight: 300;
      color: rgba(255,255,255,0.02);
      pointer-events: none;
      white-space: nowrap;
      letter-spacing: -0.02em;
    }
    .compact-hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 60% 70% at 20% 70%, rgba(196,116,110,0.06) 0%, transparent 60%);
      pointer-events: none;
    }
    .compact-hero__inner {
      position: relative;
      z-index: 2;
      max-width: 680px;
    }
    .compact-hero__label {
      color: var(--gold-light);
    }
    .compact-hero__title {
      font-family: var(--font-display);
      font-size: clamp(2.6rem, 5vw, 4.5rem);
      font-weight: 300;
      line-height: 1.05;
      margin: 1.25rem 0 1.5rem;
    }
    .compact-hero__subtitle {
      font-size: 0.875rem;
      line-height: 1.8;
      color: rgba(255,255,255,0.45);
      max-width: 58ch;
    }
    .hero-meta {
      display: flex;
      gap: 2.5rem;
      flex-wrap: wrap;
      margin-top: 2.5rem;
      padding-top: 2rem;
      border-top: 1px solid rgba(255,255,255,0.08);
    }
    .hero-meta__item {
      display: flex;
      flex-direction: column;
      gap: 0.35rem;
    }
    .hero-meta__label {
      font-size: 0.6rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      color: rgba(255,255,255,0.3);
    }
    .hero-meta__value {
      font-family: var(--font-display);
      font-size: 1.1rem;
      color: var(--gold-light);
      font-weight: 400;
    }

    /* ─── MASK SECTION ───────────────────────────────────── */
    .mask-section {
      padding: var(--space-xl) 0;
      background: var(--ivory);
    }
    .mask-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 5rem;
      align-items: start;
    }
    .mask-grid p {
      font-size: 0.875rem;
      font-weight: 300;
      line-height: 1.8;
      color: var(--charcoal-60);
      margin-top: 1rem;
    }
    .mask-features {
      display: flex;
      flex-direction: column;
      margin-top: 1.75rem;
    }
    .mask-feature {
      padding: 1.25rem 0;
      border-bottom: 1px solid var(--charcoal-10);
      display: flex;
      align-items: flex-start;
      gap: 1.25rem;
    }
    .mask-feature:first-child { border-top: 1px solid var(--charcoal-10); }
    .mf-bullet {
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: #C4746E;
      flex-shrink: 0;
      margin-top: 0.5rem;
    }
    .mf-title {
      font-family: var(--font-display);
      font-size: 1rem;
      font-weight: 500;
      color: var(--charcoal);
      margin-bottom: 0.25rem;
    }
    .mf-desc {
      font-size: 0.78rem;
      font-weight: 300;
      line-height: 1.7;
      color: var(--charcoal-60);
    }
    .mask-visual {
      background: var(--cream);
      border: 1px solid var(--charcoal-10);
      padding: 4rem 3rem;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
      overflow: hidden;
      min-height: 300px;
    }
    .mask-visual::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at center, rgba(196,116,110,0.06) 0%, transparent 60%);
    }
    .mask-glow {
      width: 120px;
      height: 120px;
      border: 1px solid rgba(196,116,110,0.25);
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      position: relative;
    }
    .mask-glow::before {
      content: '';
      position: absolute;
      width: 160px; height: 160px;
      border: 1px solid rgba(196,116,110,0.12);
      border-radius: 50%;
      animation: ringPulse 3s ease-in-out infinite;
    }
    .mask-glow::after {
      content: '';
      position: absolute;
      width: 200px; height: 200px;
      border: 1px solid rgba(196,116,110,0.06);
      border-radius: 50%;
      animation: ringPulse 3s ease-in-out infinite 0.5s;
    }
    .mask-inner {
      width: 50px; height: 50px;
      background: radial-gradient(ellipse, rgba(196,116,110,0.35), rgba(196,116,110,0.08));
      border-radius: 50%;
    }
    @keyframes ringPulse {
      0%, 100% { transform: scale(1); opacity: 1; }
      50% { transform: scale(1.05); opacity: 0.5; }
    }
    .mask-quote {
      margin-top: 1px;
      padding: 1.5rem 2rem;
      background: var(--cream);
      border: 1px solid var(--charcoal-10);
      border-top: none;
    }
    .mask-quote p {
      font-family: var(--font-display);
      font-size: 0.95rem;
      font-style: italic;
      color: var(--charcoal-60);
      line-height: 1.7;
      margin: 0;
    }

    /* ─── WAVELENGTH CARDS ────────────────────────────────── */
    .wavelength-section {
      padding: var(--space-xl) 0;
      background: var(--cream);
    }
    .wavelength-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 1.5rem;
      margin-top: 3rem;
    }
    .wave-card {
      background: var(--ivory);
      border: 1px solid var(--charcoal-10);
      padding: 2.5rem 2rem;
      position: relative;
      overflow: hidden;
      transition: transform 0.3s var(--transition), box-shadow 0.3s var(--transition);
    }
    .wave-card:hover {
      transform: translateY(-4px);
      box-shadow: 0 12px 40px rgba(26,24,22,0.06);
    }
    .wave-card__indicator {
      width: 32px;
      height: 32px;
      border-radius: 50%;
      margin-bottom: 1.5rem;
      position: relative;
    }
    .wave-card__indicator::after {
      content: '';
      position: absolute;
      inset: -6px;
      border-radius: 50%;
      opacity: 0.2;
    }
    .wave-card__indicator--blue {
      background: #5B8FD4;
      box-shadow: 0 0 20px rgba(91,143,212,0.3);
    }
    .wave-card__indicator--blue::after { border: 1px solid #5B8FD4; }
    .wave-card__indicator--yellow {
      background: #D4A85B;
      box-shadow: 0 0 20px rgba(212,168,91,0.3);
    }
    .wave-card__indicator--yellow::after { border: 1px solid #D4A85B; }
    .wave-card__indicator--red {
      background: #C4746E;
      box-shadow: 0 0 20px rgba(196,116,110,0.3);
    }
    .wave-card__indicator--red::after { border: 1px solid #C4746E; }
    .wave-card__indicator--nir {
      background: #8B5E6B;
      box-shadow: 0 0 20px rgba(139,94,107,0.3);
    }
    .wave-card__indicator--nir::after { border: 1px solid #8B5E6B; }
    .wave-card__nm {
      font-family: var(--font-display);
      font-size: 2rem;
      font-weight: 300;
      line-height: 1;
      margin-bottom: 0.2rem;
    }
    .wave-card__type {
      font-size: 0.6rem;
      font-weight: 600;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--gold);
      margin-bottom: 1.25rem;
    }
    .wave-card__title {
      font-family: var(--font-display);
      font-size: 1.15rem;
      font-weight: 400;
      margin-bottom: 0.5rem;
    }
    .wave-card__desc {
      font-size: 0.78rem;
      color: var(--charcoal-60);
      line-height: 1.7;
    }

    /* ─── PROTOCOL CONNECTION ─────────────────────────────── */
    .protocol-connection {
      padding: var(--space-xl) 0;
      background: var(--ivory);
    }
    .protocol-connection__grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 5rem;
      align-items: start;
      margin-top: 3rem;
    }
    .protocol-connection__text {
      font-size: 0.875rem;
      color: var(--charcoal-60);
      line-height: 1.8;
      margin-top: 1rem;
    }
    .protocol-steps {
      display: flex;
      flex-direction: column;
      gap: 0;
    }
    .protocol-step {
      display: grid;
      grid-template-columns: 56px 1fr;
      gap: 1.5rem;
      padding: 2rem 0;
      border-bottom: 1px solid var(--charcoal-10);
    }
    .protocol-step:first-child { border-top: 1px solid var(--charcoal-10); }
    .protocol-step__num {
      font-family: var(--font-display);
      font-size: 2.2rem;
      font-weight: 300;
      color: var(--gold);
      line-height: 1;
    }
    .protocol-step__title {
      font-family: var(--font-display);
      font-size: 1.15rem;
      font-weight: 400;
      margin-bottom: 0.3rem;
    }
    .protocol-step__tag {
      display: inline-block;
      font-size: 0.55rem;
      font-weight: 600;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      padding: 0.3rem 0.7rem;
      margin-bottom: 0.5rem;
    }
    .protocol-step__tag--prepare { background: var(--gold-pale); color: var(--gold); }
    .protocol-step__tag--treat { background: rgba(196,116,110,0.1); color: #C4746E; }
    .protocol-step__tag--recover { background: rgba(91,143,212,0.1); color: #5B8FD4; }
    .protocol-step__desc {
      font-size: 0.78rem;
      color: var(--charcoal-60);
      line-height: 1.7;
    }
    .protocol-step__highlight {
      margin-top: 0.5rem;
      font-size: 0.7rem;
      font-weight: 500;
      color: var(--charcoal);
      display: flex;
      align-items: center;
      gap: 0.4rem;
    }
    .protocol-step__highlight::before {
      content: '';
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: var(--gold);
    }

    /* ─── CTA BANNER ──────────────────────────────────────── */
    .cta-banner {
      padding: var(--space-xl) 0;
      background: var(--charcoal);
      text-align: center;
      color: var(--ivory);
      position: relative;
      overflow: hidden;
    }
    .cta-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse 60% 80% at 50% 50%, rgba(184,150,90,0.06) 0%, transparent 70%);
      pointer-events: none;
    }
    .cta-banner .label { color: var(--gold-light); }
    .cta-banner__title {
      font-family: var(--font-display);
      font-size: clamp(2.5rem, 5vw, 4.5rem);
      font-weight: 300;
      line-height: 1.08;
      margin: 1.25rem 0 1rem;
    }
    .cta-banner__subtitle {
      font-size: 0.875rem;
      color: rgba(255,255,255,0.45);
      max-width: 45ch;
      margin: 0 auto 2.5rem;
    }
    .cta-banner__actions {
      display: flex;
      gap: 1.25rem;
      justify-content: center;
      flex-wrap: wrap;
    }

    /* ─── FOOTER ──────────────────────────────────────────── */
    .footer {
      background: var(--charcoal);
      border-top: 1px solid rgba(255,255,255,0.06);
      padding: var(--space-lg) 0 var(--space-md);
      color: rgba(255,255,255,0.4);
    }
    .footer__grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: var(--space-md);
      padding-bottom: var(--space-lg);
      border-bottom: 1px solid rgba(255,255,255,0.06);
    }
    .footer__logo {
      font-family: var(--font-display);
      font-size: 1.25rem;
      color: var(--ivory);
      margin-bottom: 0.75rem;
    }
    .footer__tagline { font-size: 0.78rem; line-height: 1.7; max-width: 28ch; margin-bottom: 1.25rem; }
    .footer__contact { margin-top: 0.5rem; }
    .footer__contact-item { font-size: 0.72rem; line-height: 2; color: rgba(255,255,255,0.5); }
    .footer__col-title {
      font-size: 0.6rem;
      letter-spacing: 0.18em;
      text-transform: uppercase;
      color: var(--gold-light);
      margin-bottom: 1.25rem;
    }
    .footer__link {
      display: block;
      font-size: 0.78rem;
      color: rgba(255,255,255,0.4);
      margin-bottom: 0.6rem;
      transition: color 0.2s;
    }
    .footer__link:hover { color: rgba(255,255,255,0.8); }
    .footer__link--inline { margin: 0; }
    .footer__bottom {
      padding-top: var(--space-md);
      display: flex;
      justify-content: space-between;
      align-items: center;
      font-size: 0.68rem;
    }
    .footer__legal {
      display: flex;
      gap: 1.5rem;
    }

    /* ─── SCROLL ANIMATIONS ───────────────────────────────── */
    .reveal {
      opacity: 0;
      transform: translateY(28px);
      transition: opacity 0.7s cubic-bezier(0.25,0.46,0.45,0.94),
                  transform 0.7s cubic-bezier(0.25,0.46,0.45,0.94);
    }
    .reveal.visible {
      opacity: 1;
      transform: translateY(0);
    }
    .reveal-delay-1 { transition-delay: 0.1s; }
    .reveal-delay-2 { transition-delay: 0.2s; }
    .reveal-delay-3 { transition-delay: 0.3s; }
    .reveal-delay-4 { transition-delay: 0.4s; }
    .reveal-delay-5 { transition-delay: 0.5s; }

    /* ─── UTILITIES ──────────────────────────────────────── */
    .color-ivory { color: var(--ivory); }

    /* ─── RESPONSIVE ──────────────────────────────────────── */
    @media (max-width: 1024px) {
      .mask-grid { grid-template-columns: 1fr; gap: 3rem; }
      .wavelength-grid { grid-template-columns: 1fr 1fr; }
      .protocol-connection__grid { grid-template-columns: 1fr; gap: 3rem; }
      .footer__grid { grid-template-columns: 1fr 1fr; }
    }
    @media (max-width: 680px) {
      .nav__links { display: none; }
      .wavelength-grid { grid-template-columns: 1fr; }
      .footer__grid { grid-template-columns: 1fr; }
      .cta-banner__actions { flex-direction: column; align-items: center; }
      .hero-meta { flex-direction: column; gap: 1.25rem; }
    }